Showing posts with label nano. Show all posts
Showing posts with label nano. Show all posts

Tuesday, 1 July 2014

New Nano Tec' Hydrophillic Window Coatings

A nanoparticle-based coating from ARS, applied to the right half of this plastic container, prevents water from beading and reducing visibility.
http://phys.org/news/2014-07-nanoparticle-based-coating-beading.html
Nanoparticle based coating helps stop water from beading: When rain falls on a glass window or a plastic skylight cover, it often forms beads. That's because these surfaces typically are hydrophobic, meaning they repel water. But a transparent, nanoparticle-based coating developed by Agricultural Research Service scientists can quickly change surfaces from hydrophobic to hydrophilic, so that rain doesn't bead up, and your visibility isn't impaired.

When raindrops come in contact with the spray-on coating, they spread, instead of beading, explains chemist Sanghoon Kim, who headed the nanoparticle studies. Besides its potential use on windows, the coating might also be applied to solar panels, to help keep dirt from interfering with their performance. What's more, Kim and colleagues have observed that the coating works well on other materials, including Plexiglas and metals such as stainless steel.

Kim, chemist Atanu Biswas, and physical scientist Kervin Evans—all at the ARS National Center for Agricultural Utilization Research in Peoria, Illinois—created the coating's nanoparticles using only a few off-the-shelf laboratory chemicals, including an ag-sourced protein. From start to finish, production of the nanoparticles takes less than an hour, involves simple procedures with inexpensive chemicals, and doesn't require specialized equipment or costly heating.

In a proof-of-concept experiment, the researchers used bovine serum albumin as their protein and ethyl cyanoacrylate as the starting material that's key to creating the nanoparticles. Bovine serum albumin is a cattle industry coproduct. Ethyl cyanoacrylate is a major component of what's commonly known as "super glue." Simply stated, the nanoparticles were formed when ethyl cyanoacrylate reacted with bovine serum albumin in a solution of acidified ethanol. Spinning this mixture in a centrifuge removed any byproducts of the reaction, resulting in nanoparticles suspended in the solution.

Applying the coating is quick and easy. All that's needed is to spray it onto clean glass or other recommended surface, then rinse with water. Kim, Biswas, and Evans documented their results in a peer-reviewed scientific article published in 2013 in Colloids and Surfaces B: Biointerfaces.

In a followup study, Kim and colleague Yeon Seok Kim, of the National Institute of Standards and Technology, used gliadin—a protein from wheat—to demonstrate that their process is applicable to both plant- and animal-derived proteins. An article published this year in the Journal of Nanoparticle Research has details.

Typically, plant proteins are less expensive than those from animal sources. Regardless of which agricultural source is chosen, informal cost estimates suggest that the new coating could be made at the same or less cost than hydrophilic coatings already on the market.

The fact that the Peoria coating is rain-ready in about a minute apparently makes it unique. ARS is seeking a patent for the research, and the scientists are looking for industry partners, such as manufacturers of window cleaning products, to commercialize the invention.

The uncoated section (left) of a glass slide is peppered with water droplets whereas the coated section (right) has a thin film of water that makes the glass clear.
http://phys.org/news/2014-06-scientists-clearer-glass-permanent-superhydrophilic.html#inlRlv
Scientists create clearer glass with permanent, superhydrophilic ceramic coating: When it comes to fogged up glassware or windows, the best way to keep a clear view seems to be by wiping the water droplets away constantly or having coatings that prevent the water from sticking to the glass. However, scientists at A*STAR's Institute of Materials Research and Engineering (IMRE) have discovered that doing just the opposite - collecting the water to create a uniform, thin, transparent layer - actually helps produce a better, clearer view.

IMRE has invented a new technology, CleanClear, which is a durable and permanent ceramic coating that is transparent and superhydrophilic, which means it attracts water instead of repelling it. This creates a layer of water that prevents fogging on glass or plastic surfaces, and keeps surfaces cleaner for a longer period of time. Water-forming coatings create an additional uniform water layer to produce a better view as opposed to water-repelling technologies that form water droplets which impair vision.

Reduced visibility from fogged up glass or plastic surfaces is a common problem in wet or humid environments, and affects a multitude of products such as car windshields, spectacles, goggles, and even covers for cookware. The majority of solutions rely on water-repelling coatings. Unfortunately, current coatings are not durable and most have to be re-applied regularly.

How the technology works:

The new patented technology from A*STAR's IMRE is a one-time ceramic coating that can be applied onto glass or plastic materials at processing temperatures below 100oC. This is important as it makes the coating process simpler and ultimately, more cost-effective. Currently, commonly used chemical coatings degrade easily with continued usage and have to be re-applied. IMRE's new ceramic coating is durable, permanent and only needs to be applied once. Although there are also other similar "water-loving" coatings, these are often processed at much higher temperatures and can only be activated by ultraviolet (UV) rays or sunlight.

Large multinational companies also use alternative coatings like titanium dioxide (TiO2) to produce self-cleaning glass surfaces that prevent dirt and dust from sticking. However, the TiO2 ceramic coats can only be applied on surfaces during the manufacturing process at temperatures above 600oC. This limits their application to hard materials like glass. CleanClear can be adapted to multiple surfaces and materials, ranging from glass to plastics. TiO2 coatings are also activated by sunlight but IMRE's new coating does not require activation and continues to function even at night and in low-light, indoor environments.

There are many useful applications for IMRE's "water-loving" surface. For example, it can be applied on car windshields, mirrors and motorcycle visors, allowing for better visibility in the rain. Coating building exteriors with this new material allows for self-cleaning during rain. Due to its adaptability for application on various surfaces besides glass, this could also result in potential cost savings. CleanClear can also be applied to consumer products to reduce condensation on glass covers for pots, food containers and hot food displays.

"Conventional technologies mainly use organic-based materials and some with nanoparticles but these don't last long, and need to be re-coated from time to time. The CleanClear process makes the coating part of the surface – permanently," said Dr Gregory Goh, the lead scientist from IMRE who developed the technology last year.

"CleanClear could be used to help create a sort of a clear 'vision shield' for today's car windshields during heavy rain," added Dr Goh. "Or we could use it to replace current daytime, UV light activated coatings with an all-day, all-night CleanClear coat on building facades to keep glass cleaner."

Wednesday, 8 February 2012

Bumper Window Cleaning News Edition

The Day's Best: Tim McGraw, of PJ's Window Cleaning Company, cleans the windows of the PNC bank Building in Wilkes-Barre, Pa.

Unger appoints new Europe head: Cleaning systems provider Unger - which has its headquarters in the USA - has appointed Torsten Deutzmann as managing director of its European division. Based in Germany, Deutzmann - who joined the company in 1995 as a marketing assistant - has performed a variety of roles, most recently general manager. Commenting on his appointment Mark Unger, president of Unger Enterprises said: "Torsten's outstanding track record at Unger speaks for itself. We have no doubt that he will be a great success in his new role, continuing to add value to the brand and taking the lead in developing new opportunities for the company." Deutzmann added: "Having spent a fantastic 17 years with Unger I feel I know every product and customer inside out. I will use this knowledge to provide even better value products and services to our distributor and end user clients."

‘Gentleman Paddy’ is laid to rest: Large crowds attended the funeral of local window cleaner and Derry City Steward Paddy McDermott who was buried on Sunday. Tributes have flooded in for the 45-year-old who died in hospital after falling from a ladder at a house in the Oakbridge area of the city on Monday while cleaning gutterings. Mr. McDermott, from Hazelbank, was well known locally because of his involvement with Derry City Football Club where he had been a steward for 15 years. He also owned a window cleaning company which operated in a number of areas across the city. The tragic death of the popular father of two sent shockwaves across the city on Friday. Local politicians and Derry City representatives have paid tribute to Mr, McDermott describing him as a “gentleman who was well respected and liked by everyone.” Derry Window Cleaner Dies After Ladder Fall.

The Age of No Response: Communication is faster than ever. So, why does no one reply to messages any more? You hear the same outraged complaint everywhere these days — on television, radio, in newspaper articles and endlessly among friends: ‘They never got back to me!’ It’s a chorus of despair that stretches across the country. Telephone calls, emails, letters and texts are endlessly ignored, causing nationwide frustration. It seems we live in an age of No Response, which blights hope and causes all but the most determined to give up. You ring a plumber, a window cleaner or an odd job man, saying you need him urgently and could he call you back. But he doesn’t. You ring many times. You despair. If they finally do get in touch, they’re apologetic, but they put it down to — yes, you’ve guessed — being too busy. I simply cannot believe that anyone is too bogged down to make a brief telephone call.

City Workers Take Pride in Waging War Against Dirt: Martin Luther King Jr. once said: “If a man is called to be a street sweeper, he should sweep streets as Michelangelo painted, or Beethoven composed music or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and earth will pause to say: Here lived a great street sweeper who did his job well.” Meet Robert Elston, street sweeper, toilet cleaner, window washer, patron greeter, Carousel Mall maintenance man extraordinaire. Watching him through a prism of predawn light, his movements are precise and almost poetic and his head turns continually as though engaged in a rhythmic dance. “I pay attention to every detail,” he says.
Something of an understatement considering Elston has been paying attention to detail at this once thriving downtown retail center since 1975. Long past the mall’s heyday, he still shows up before daylight with a singular determination: to keep the lights burning, clean and sanitize urinals, toilets, sinks, replace tissue, hand soap, fix light fixtures, unclog drains, polish, sweep, mop, wax and strip floors, clean windows, countertops and desks, empty waste baskets, wash walls and mirrors and while he’s at it greet passers-by. “And that’s just for starters,” he says with a big grin.” We’ve got the parking lot cleanup and grounds keeping to do.”

Cars and homes covered in spray paint by vandals in Cleethorpes: Vandals went on the rampage spraying offensive slogans on residents' homes and cars and businesses in Cleethorpes. Staff at Valerie's Italian, on Kingsway, spent hours clearing the swear words from the windows of the restaurant. Sergeant Stephen Foster, of Humberside Police, said dozens of cars and homes had been vandalised by youths in the early hours of yesterday. He said: "They were random, offensive messages sprayed in a number of colours. The evidence would indicate a number of people were responsible. "We have carried out house-to-house enquiries and have started looking at CCTV footage of the area." He added a can of spray paint had been recovered by scenes of crime officers and had been sent for forensic analysis to find out who was responsible for the offensive slogans, which were in green, silver and blue.
The vandals struck sometime between 3am and 7am. Owner of Valerie's Italian, Valerie Armstrong said: "We had to clean every window after the cleaner called me at 7am. "We just got on with it and used nail polish remover. It was better than using white spirit. I don't want them to get me down otherwise they have won." Residents in Haigh Street were supporting one another in the clean-up. Dave Peck said: "It is a real pain, but everyone is helping one another out." Neighbour Joy Moate said: "It is such an inconvenience. We have spent hours trying to clean up. One elderly resident in the street whose house is up for sale had "Sold" daubed on his window.

6 Earthquake Movies That Will Make You Fear The Ground You’re On: “Earthquake”. The star power alone is worth a watch, but the effects and models are incredible in “Earthquake”. Ground shaking and buildings crumbling, this movie gives true power to the effects of a giant earthquake. Window washers fall to their deaths just outside Lorne Green’s office in a simple scene that doesn’t need to show the end result to make you twist inside as you contemplate the terror of that kind of quake.

Top 7 Things You Can Do to Improve the Value of Your Home: The third thing that you can do it doesn’t cost a lot of money is to clean your house. Having a clean house, gives people the impression that the house is well cared for. Make sure to do deep cleaning. One of the most important things that a lot of people don’t do is to clean their windows. By cleaning your windows, you will allow a lot more light into the home, and you will make the home worth a lot more.

Treat yourself to a clearer view (Australia): “We can’t promise you an ocean view, but we guarantee a clear view.” That’s the motto Dave Parsons from Ocean View Window Cleaning in Torquay goes by, as he cleans, brightens and makes sparkly windows in Geelong, the Surf Coast and Bellarine. No job is too small, or too big for Ocean View Window Cleaning. Catering to residential and commercial clients, they pride themselves on first class work, with A1 equipment and reliable, polite staff. Ocean View Window Cleaning specialise in window cleaning, are fully licensed to use elevated platforms, and take care of pressure cleaning, builder’s cleans, gutter clearing and spider removal. Having bought the 25-year-old business six years ago, Mr Parsons said he revels in the variety, and loves making people’s homes and businesses look better. “December was crazy, but good. We have another staff member in the pipeline, and we are looking to expand into offering our customers all home maintenance services. “Whatever they need we will source for them.”

Thorokleen is cleaning up: A long established city business cleaned up in 2011 by having its best-ever year of trading since it started out 24 years ago. For Thorokleen, based in Papyrus Road, Werrington Business Park, 2011 saw growth of about 10 per cent and included the company securing major contracts, including Ideal Shopping Direct Limited. It was also the year which saw founder and managing director Roger Cresswell achieve a long-held ambition – turnover of his family firm hitting the £1 million mark. “We have been doing it at our own pace,” said Roger. “It has taken 24 years, but we have been growing at a controllable rate.” So much has the business grown, that it now employs 10 full-time, long-serving, office-based staff and 120 part-time cleaning staff. But the overriding philosophy of Thorokleen has been service not size – its catchline is Complete Customer Satisfaction.
Prior to setting up Thorokleen in 1988, Roger had spent 20 years working for Peterborough company Industrial Supplies, whose commercial ethos was service, service, service. The company expanded and became very successful. In his position as general manager at Industrial Supplies, Roger came into contact with numerous local cleaning contractors and concluded there was an opportunity to start a business using the Industrial Supplies ethos. The seed of the idea of Thorokleen was born. Thorokleen not only had its most successful year yet balance sheet wise in 2011, but it is also looking to the future by promoting within the company. The year 2012 could see the company expand further, dependent, in part, on winning tenders in the pipeline. “There are three opportunities to take on large local companies – success would mean considerable growth,” said Roger.

Was anyone surprised to learn from last week's Essex University study on integrity that over the last decade we've become a nation of liars and cheats? Seemingly 80% of us wouldn't hand back money we found in the street, 60% would lie in a job application, 30% would happily consider buying stolen goods, and we don't even seem to trust each other that much any more. But then again, why should we? Whatever became of integrity? Role model-wise, as recently as 2003 our subsequently self-beatified Prime Minister stood at the dispatch box in the Commons and lied about weapons of mass destruction in order to take us to war. Last week Dave Harnett, permanent secretary for tax at HM Revenue & Customs, lambasted everyone who's ever paid a window cleaner, chippy, or other hard-working lifesaver cash in hand for their labours, for "diddling" the nation. This from a man who stands accused by MPs - many of them not averse to a bit of the old cash-in-hand themselves - of doing "sweetheart deals" with the likes of Vodafone and Goldman Sachs and allegedly letting them off multi-millions in tax liabilities. Geese and ganders?

Warmer Winter Weather Heats up Retail Environment: For Lindenhurst retailers mild Winter conditions into February so far spell challenges for some, opportunity for others. Life, as they say, is unpredictable. "There's a big rush before a snowstorm, which is good because it cleans out inventory and it feels like we're making a lot of money," she said. "But afterward things let up. So it basically balances out." One area the weather has little effect on, it seems, is contracted services to local retailers - like window cleaners. Caught between panes of glass, window washer Anthony offered his assessment on a recently sunny Winter afternoon. "We come out to our customers in any weather," he said. "It doesn't make any difference. Of course, it's nicer to wash windows when the sun is shining like this!"

Totally DIY exhibitors celebrate product awards: Four Totally DIY exhibitors celebrated on Sunday evening this week after being named gold winners of this year's product awards. One of the four gold winners in the awards, organised and sponsored by DIY Week, are: Karcher's Window Vac, a combination of technologies. It brings together the idea of a window squeegee with a cordless vacuum cleaner to do something no other product does: vacuum a window clean and dry. Kärcher Extreme Window Cleaning.

Mick McCarthy - Top Flight Soccer Football Manager: McCarthy admits he relishes the challenges as a manager despite the rollercoaster nature of the job. "I've got so many of my pals who wonder why I do it and ask if I could get a sensible job as a window cleaner or an insurance salesman," he said. "As a manager you go through the range of emotions. I've been doing it for almost 20 years now. If you don't want to want to go through it, then get out."

£1m fund opens to SMEs in Liverpool region: The money forms part of the Government’s £2.4bn Regional Growth Fund (RGF), which aims to kick-start job creation despite the tough economic climate. Small and medium-sized enterprises across the Liverpool city region are able to apply for contributions from the fund, which the Echo has developed in partnership with regeneration agency Liverpool Vision. Monies awarded will need to be matched by the business itself. A business looking for a £10,000 investment could, for example, apply for £5000 and contribute £5000 from its own cash reserves.
Initial applications are now being accepted; those with the best ideas will then be invited by the Echo to submit detailed business plans. “Lord Heseltine was keen that money from the RGF was used to help small businesses at a grassroots level,” said Mr Machray. “To quote him, he said he wanted to reach out to ‘the window cleaner from Kirkby’. He said he felt the best way of doing that was through the Echo so the maximum number of businesses got the message loud and clear. “There is no doubt we are in tough economic times but Merseyside has always had a great entrepreneurial tradition. “We know there are countless small businesses out there that are itching to grow and to create new jobs – and we are keen to give them a helping hand to do just that.”

Hundreds of Harrah's & Harveys Housekeepers Outsourced: Today is hundreds of Harrah's and Harveys employees in northern Nevada last day work for parent company Caesars Entertainment. They will be let go and immediately re-hired to do the same job at the same hotels, but they will work for someone new: The Service Companies (TSC), a one-stop shop for cleaning at hotels. Experts say it is a significant shift in Caesar’s employee relations and corporate strategy. Some employees are grumbling, and in some cases protesting where they suddenly find themselves working longer hours and paid vacations gone. While outsourcing allows Caesars to focus on marketing and cut costs, it also frees up another department. “These brands get stretched for human resources,” Rosenow says, adding that he has a massive human resources operation. “It takes a tremendous amount of resources to recruit the talent to work in the ‘back of house’ positions. They are difficult to recruit for because they are physically demanding positions. Our housekeepers, public area attendants, exterior high-rise window cleaning are very, very hard. It takes a special person to be up there in the air cleaning these windows.” To find these special people TSC partners with unemployment and job centers, recruiting through Hire Vets First and Catholic Charities. “They are the primary contact for people who have come from a war-torn country,” Rosenow says adding that in Florida, they also work with a Cuban refugee program. For employees who will be making the switch Caesars to TSC, this focus on cleaning and human resources may have a silver lining.

East Harlem IHOP Puts Bulletproof Glass in 24-Hour Takeout Window: A few hours after its grand opening, the new International House of Pancakes in East Harlem was stuffed full of customers drowning their flapjacks with syrup — but community advocate Derrick Taitt wasn't one of them. Taitt, the treasurer of the Community Association of the East Harlem Triangle, said he's disappointed by the decision to install a 24-hour takeout window covered with bulletproof glass at the IHOP at 126th St. and Lexington Ave. "There is no respect in the takeout," said Taitt. "If the restaurant is going to be open, then it should be open, not just a window." The 24-hour takeout window, which serves customers through a Lazy Susan, is the first of its kind in any IHOP restaurant in the country, according to IHOP franchise business consultant Wayne Brown. The small takeout window is open during the day, for customers who don't want a sit-down meal, and when the restaurant stops seating customers at 11:30 p.m., pancake-craving patrons can order from the window until the restaurant opens again for breakfast. IHOP owners said the restaurant might consider removing the bulletproof glass one day, but for now, it's paramount to keep employees safe.

A burglar who started his criminal career aged just 12 has been locked up after he joined a gang raid on a couple’s home in Harrington. Jack Nicholson, now 19, was sent to a Young Offenders Institute for 18 months for his part in the attack on Hannah Lancaster and Martin Edgar in Church Street in Harrington, Workington. Carlisle Crown Court heard how Nicholson, along with Shaun Murdoch, also 19, and two others aged 15 and 17, forced their way into the house last July. Murdoch, of Walls Road, Salterbeck, attacked Mr Edgar with a dog lead when he said he had nothing to give them. He too was sent to a Young Offenders Institute for 18 months. He said Murdoch, who has convictions for a public order offence, criminal damage, resisting a police officer and assault, now had a partner and young son. “He spent his teenage years somewhat off the rails,” Mr Carney said. “He has recently started work as a window cleaner and a job gives structure to a young person’s life.”

A teenager was told by a judge that he hoped his appearance in the dock at Truro Crown Court was a lesson he would remember for the rest of his life. Eden McCann, 19, of Gyllingvase Hill, Falmouth, admitted common assault and was given a conditional discharge for 12 months and ordered to pay £85 prosecution costs. Iain Leadbetter, for the prosecution, said on February 4 last year McCann was with friends when there was an altercation with Ivan Ellis whose girlfriend was behaving badly. Mr Ellis went to the ground and McCann, who was drunk, stupidly went over and kicked him in the chest. When arrested he alleged: "He started it." Barrie van den Berg, for the defence, said that McCann, who is of previous good character, had been made redundant from his work as a window cleaner but was planning to set up in business with a friend.

The West University Place Police Department released a notification this afternoon warning residents of solicitors. The warning came as a response from a resident within the West University Place area who contacted the police department in regards to a growing concern regarding the manner in which people are soliciting. In one instance, a young man went to a resident’s home displaying a permit with photo identification claiming to be a neighbor who was part of the Diablo Minor League baseball team. The young man advised he was trying to raise funds for the team to go to a tournament in Hawaii. He also advertised his window cleaning services in order to receive additional donations. This is a common method that many door-to-door solicitors use in order to gain a resident’s trust and adhere to people’s compassion to help. In actuality, many of these solicitors are bused in from out of state, work for companies with F ratings from the Better Business Bureau, and often times have extensive criminal histories.

Bogus window cleaner robs woman, 80: Cops have issued a fresh appeal to catch a bogus window cleaner who stole cash from under the nose of an elderly woman. The culprit stole money from the 80-year-old grandmother when he conned his way into her home. Now police are warning local residents to be on their guard against similar threats. The incident happened in Netherhill Crescent at around 11.30am on Friday, January 13. The frightened pensioner caught the male suspect walking through her unlocked front door. When she confronted him, he explained himself by asking if she was looking for a window cleaner. Confused, the OAP said she was. He then asked her to fetch a pen and paper so she could take his number. While the gran was distracted, the callous conman raided her home and nicked her purse. He made off with around £65 before she returned. Cops released a description of the suspect this week, and have asked witnesses to get in touch. He is described as between 20 and 28, around 5ft 2ins to 5ft 5ins in height and of a slim build with dark brown hair. He was wearing a dark jacket, jeans and trainers. A police spokesman said: “This lady had left her front door unlocked, and this particular suspect had chanced his arm to see if he could get in. “We would urge all residents to secure their homes at all times.”

Wandsworth has become the first council in London to publish league tables that show how the services it provides compare to those of councils across the capital. The council has pledged to become Britain’s most transparent council and to allow residents "warts and all" transparency on how it performs. In October last year, for instance, the council spent £325,000 on heating the Patmore estate, and £17,000 on window cleaning.

£120k cost of Lord Mayor of York: The overall bill for the St Helen’s Square building was £139,334.02, including £17,802 in business rates, £1,460.16 in window-cleaning costs and £3,187.50 for advertising and publicity.

An 84-year-old widow has died after a fire at her Blackburn home. Pensioner Freda Read, was found in the living room of her terrace house in Accrington Road. Police and firefighters were called after window cleaners spotted damage at the home yesterday. “I know that she helped the window cleaners out by letting them keep their ladders in her yard. They would call round for them and she would make them a brew.

Two paedophile cousins who murdered a woman and dumped her body at sea have been given permission to appeal their life sentences. Charles O’Neill and William Lauchlan were jailed for life with a minimum of 56 years for killing Allison McGarrigle in 1997. The pair, described as "evil, determined and manipulative paedophiles of the worst sort" by trial judge Lord Pentland, were convicted of several counts of child abuse that took place after they killed Mrs McGarrigle. They strangled mother-of-three Mrs McGarrigle at Waterside Street in Largs, Ayrshire, on June 21, 1997, before hiding her body in a wheelie bin, which they then dumped at sea from a boat. They believed that she was going to inform the police of their abuse of a young boy. Lauchlan was refused a no case to answer plea at the trial in 2010, as he argued the evidence against him was "circumstantial". This includes attempting to sexually abuse a 15-year-old boy in Alfaz del Pi, in Benidorm, Spain, after the pair, who were also lovers, had moved there and set up a window cleaning business.

A Trimsaran man has admitted assaulting his girlfriend after she tried to stop him telephoning a drug dealer. Craig Robert Gee, 35, of Argoed Crescent, pleaded guilty to assault by beating of Hayley Power before Llanelli magistrates, after an incident on January 25. Mitigating, Aled Owen said: "The issue of this incident seems to be the impact of the drug heroin, which once had an impact on his life. "Over the past seven years he has been living a much more conservative lifestyle and has done that off his own back, going cold turkey after he sought help." Gee had recently started up a window-cleaning round, the court was told.

Hundreds of thousands of criminals to get clean slate in law change: The periods after which convicted criminals no longer have to declare their past offending are to be significantly cut in plans outlined by Kenneth Clarke, the Justice Secretary yesterday. It will mean some rapists and killers who would normally have had a permanent record will now have it cleared after seven years at the most and possibly as low as two years. Thousands of burglars and muggers will have their records cleared after as little as a year. The changes centre on the 1974 Rehabilitation of Offenders Act which dictates when a conviction is “spent” and has a sliding timescale depending on the seriousness of the crime.
A “spent” conviction is when the offender no longer has to declare it on occasions such as a job application, insurance forms or visa requests.Anti-crime groups last night warned the move puts the public at risk. Jim Maddan, chairman of the Neighbourhood & Home Watch Network and a retired police inspector, said there is a concern for householders who trust people around their home such as gardeners or window cleaners. “We do not want to put too many restrictions on those who want to go straight but at the same time we need to make sure the community is safe,” he said. “If there is an opportunity for people not to declare convictions when they are going for employment then it can make the situation more difficult.”

A familiar face known to generations of families in Tunbridge Wells has set his sights on a 65th year on Dunorlan Park lake. Great-grandfather Norman Matchett celebrated his 90th birthday on Thursday and is not ready to call it a day just yet. However, former window cleaner Mr Matchett, who has been married to Margaret for 62 years, uncovered a revelation about his birthday when his sister died – he had celebrated it on the wrong day for 80 years. "She used to keep my birth certificate and it turns out I was actually born at 11.50pm on January 25, not 26. "I've been celebrating it on the 26th for so long, why would I change now?" 

SECALT S.A. v. WUXI SHENXI CONSTRUCTION: Tractel manufactures and sells the Tirak traction hoist, which is used typically for commercial building projects and external maintenance, like window washing. These devices are commonly affixed to suspended platforms to power the platforms up and down stationary wire ropes. Upon discovering that Jiangsu, a Chinese competitor, exhibited similar looking hoists at a trade show in Las Vegas, Tractel brought suit claiming that Jiangsu's hoists infringed the trade dress of the Tractel traction hoist. The complaint included three counts against Jiangsu: trade dress infringement under the Lanham Act; federal unfair competition; and related state law trade dress and unfair competition claims.

Via Christi tornado-proofs windows in its corridors: PITTSBURG: Via Christi Hospital is taking steps to make itself safer in the event extreme severe weather. This week, crews from Dallas-based company Hanita Coatings have been installing protective film on windows in corridors where patients would be relocated due to weather events such as tornados — standard hospital procedure. The film is a thousandth of an inch thick yet strong enough to prevent projectiles from shattering and penetrating the glass in the event of tornado-strength winds, project manager Glenn Wocca said. “The glass might break, but the window will still hold,” Wocca, who has been installing Hanita products for 20 years. “It’s like a car window.”
The window film attaches to the glass with pressure adhesive, which Wocca described as a “giant piece of fly tape.” Wocca first cleans each window and sprays the glass with liquid. He then peels off the protective plastic and wedges the film into the window frame before squeegeeing out the liquid — a process that allows the film to stick without forming air bubbles. He then screws on a multi-layered frame, which will anchor the window if it is hit by flying debris. The film also is used for protection against hurricane winds and blast mitigation in the event of bomb attacks. “It’s like hanging a piece of sheet metal on the glass,” Wocca said. The hospital is installing the coating on 88 corridor windows as well as the five labor and delivery rooms on the hospital’s new third floor women’s center.

Vanadium dioxide (VO2) is a leading candidate material for the fabrication of thermochromic films and coatings that will find special applications in a new generation of 'smart' glass that can change infrared transmittance by responding to environmental temperature, while maintaining visible transparency. This kind of smart windows may be especially useful for locations with hot summers and/or cold winters. In addition to its temperature-responsive thermochromism these films also exhibit UV-shielding properties.

Thursday, 17 March 2011

Nanotechnology, Fullerenes & Bucky Balls - Window Cleaning Future?


What does this mean to the window cleaner? Water fed pole membranes & filters will last longer, but at what cost? Nanotechnology has already appeared as window films in both hydrophobic & hydrophillic coatings - and yet we know so little. Today & today only - WOOT are offering Limited Edition Green Buckyballs 216 Piece Magnetic Set – 2 Pack for $29.99 - science in your hands!
Even our water fed poles resemble the carbon nano-tubes.. read on..



Researchers at Duke University in Durham, North Carolina have shown that buckyballs could prevent bacteria and other contaminants from attaching to water pipes and the membranes used to filter water in filtration plants. When bacteria attach to these surfaces, they attract other organics that eventually form a film that both blocks and contaminates the water within. Preventing this buildup using buckyballs could limit or prevent membrane replacements, reducing costs and making water safer at the same time.
A team at Duke's Environmental Molecular Biotechnology Laboratory led by Assistant Professor of Civil and Environmental Engineering Claudia Gunsch and post doctoral fellow So-Ryong Chae, has been experimenting with the buckyballs. Buckyballs, or systems with 60 carbon atoms arranged in a lattice of pentagons and hexagons much like a soccer ball, are the most common nanoparticles, also known as buckminsterfullerenes.
In addition to preventing attachment to the membranes, the buckyballs also appear to inhibit the ability of the bacteria to fuel their activities with oxygen. This reduces the number of bacteria available for attachment, further lessening the impact of the bacteria on water systems. The researchers say they do not fully understand why this is the case, but all experiments so far have yielded consistent results.

The bacterial attachment, called biofouling, is one of the most common problems in membrane-based water filtration plants. The pores in the membranes are so small that they can get clogged very easily, limiting throughput considerably. The difference seen in membranes operating with buckyballs versus those without was significant; treated membranes had about 20 bacteria colonies after three days while untreated membranes had too many colonies to count.
All experiments to date have been conducted with Escherichia coli K12, a strain of bacteria widely used in laboratory settings. The next step is trying the buckyballs with other types of bacteria and with mixed environments of multiple bacteria that more closely mimic real world situations. The longevity of these coatings must also be tested. Additionally, the Duke team plans to build its own miniature filtration plant for more intense testing.

The winning Aquaduct Mobile Filtration vehicle was designed to help people living in developing countries, who often do not have access to clean water. As the rider peddles, the peristaltic pump draws the water from the storage tank and through the filter. The filtered water is then transferred to the clean tank. The clean tank is a closed removable container which can be simply taken into the home
TFOT has previously reported on the Aquaduct Mobile Filtration bicycle that filters water as you pedal it. We have also reported on other technology based on buckyballs and other fullerenes including buckypaper composites with all of the properties of carbon nanotubes, an 80-atom buckyball made of Boron atoms instead of carbon, and ultralong carbon nanotubes developed at the University of Cincinnati.



Buckyballs for water treatment systems: Microscopic coal particles of the fullerene family called buckyballs could help to maintain cleaner water pipes. In the course of time, water membranes and pipelines accumulate bacteria and other microorganisms for water treatment. As bacteria are joining these surfaces attract other organic matter, creating a biological film that grows over time. The results obtained in the laboratory by a team from Duke University show that buckyballs might be able to prevent this coating, known as biofouling. The only alternative to this system is expensive, involves digging up the pipes, and replaces the membranes. Biofouling is one of the problems of higher costs associated with water treatment systems based on membranes. A group of engineers from Duke University says that buckyballs hamper the action of bacteria and other microorganisms accumulated in membranes that treatment plants use to filter water. Due to this property, these nanoparticles could solve one of the most expensive problems in water treatment. These membranes have small quickly coating pores that would be covered quickly. If the half-life time of membranes increases it would cause a significant reduction in the cost of these systems. The membranes treated with buckyballs present a lower bacterial layer than untreated ones.

Buckyballs Could Keep Water Systems Flowing:  Microscopic particles of carbon known as buckyballs may be able to keep the nation's water pipes clear in the same way clot-busting drugs prevent arteries from clogging up. Engineers at Duke University have found that buckyballs hinder the ability of bacteria and other microorganisms to accumulate on the membranes used to filter water in treatment plants. This attribute leads the researchers to believe that coating pipes and membranes with these nanoparticles may prove to be an effective strategy for addressing one of the major problems and costs of treating water.
"Just as plaque can build up inside arteries and reduce the flow of blood, bacteria and other microorganisms can over time attach and accumulate on water treatment membranes and along water pipes," said So-Ryong Chae, post-doctoral fellow in Duke's environmental and civil engineering department. The results of his experiments were published March 5, 2009 in the Journal of Membrane Sciences. "As the bacteria build up on these surfaces, they attract other organic matter, creating a biofilm that slowly builds up over time," Chae continued, "The results of our experiments in the laboratory indicate that buckyballs may be able to prevent this clogging, known as biofouling. The only other options to address biofouling are digging up the pipes and replacing the membranes, which can be expensive and inconvenient."
A buckyball, or C60, is one shape within the family of tiny carbon shapes known as fullerenes. They are named after Richard Buckminster Fuller, the inventor of the geodesic dome, since their shape resembles his famous structure. "Biofouling is viewed as one of the biggest costs associated with membrane-based water treatment systems," said Claudia Gunsch, assistant professor of civil engineering at Duke's Pratt School of Engineering and senior member of the research team. "These membranes have very small pores, so they can get stopped up quickly. If we could increase the time between membrane replacements by 50 percent, for example, that would be a huge cost savings."
According to Chae, the addition of buckyballs to treatment membranes had a two-fold effect. First, treated membranes showed less bacterial attachment than non-treated membranes. After three days, the membranes treated with buckyballs had on average 20 colony forming units, the method by which bacterial colonies are counted. "In contrast, the number of bacterial colonies on the untreated membrane was too numerous to count," Chae said. Chae also found that the presence of the buckyballs inhibited respiration, or the ability of the bacteria to use oxygen to fuel its activities. "As the concentration of buckyballs increased, so did the inhibition of respiration," Chae said. "This respiratory inhibition and anti-attachment suggests that this nanoparticle may be useful as an anti-fouling agent to prevent the biofouling of membranes or other surfaces." Gunsch said the mechanisms involved are not well-understood.

But what are the risks?..

Caution flag raised on buckyballs; harm to the environment possible: Buckyballs, described by some scientists as "the perfect molecule" and a hallmark of Rice University research, may cause more havoc in the environment than researchers originally thought. A team of researchers at Rice and Georgia Tech universities has found that the ultra-tiny, soccer-ball-shaped buckyballs, contrary to what they had thought, do in fact dissolve in water, a finding that suggests they could pose a risk for wildlife and water supplies.
The new results compound concerns raised by earlier studies that found buckyballs can cause brain damage in bass and harm human cells. Discovered nearly two decades ago at Rice, buckyballs are among a handful of new materials, far smaller than human cells or even DNA, driving the nanotechnology revolution. "This doesn't mean that we should put a halt on nanotechnology," said Joseph Hughes, an environmental engineer at Georgia Tech and the study's lead author. "Quite the opposite."
No scientists or government regulators have called for stopping the research and commercialization of nanotechnology, a rapidly expanding field of specialized materials that encompasses everything from novel medical approaches to bulletproof vests. Nor are many likely to call for a ban now.
What the new findings should do, researchers say, is increase pressure on the federal government to further regulate the production and handling of buckyballs and potentially other nanotechnology materials, such as carbon nanotubes. "I don't view this new research as something that's very scary," said Kristen Kulinowski, executive director of Rice's Center for Biological and Environmental Nanotechnology. "But it may highlight the need for caution."

'Buckyballs' have high potential to accumulate in living tissue: Research at Purdue University suggests synthetic carbon molecules called fullerenes, or buckyballs, have a high potential of being accumulated in animal tissue, but the molecules also appear to break down in sunlight, perhaps reducing their possible environmental dangers. Buckyballs may see widespread use in future products and applications, from drug-delivery vehicles for cancer therapy to ultrahard coatings and military armor, chemical sensors and hydrogen-storage technologies for batteries and automotive fuel cells.
"Because of the numerous potential applications, it is important to learn how buckyballs react in the environment and what their possible environmental impacts might be," said Chad Jafvert, a professor of civil engineering at Purdue. The researchers mixed buckyballs in a solution of water and a chemical called octanol, which has properties similar to fatty tissues in animals. Jafvert and doctoral student Pradnya Kulkarni were the first to document how readily buckyballs might be "partitioned," or distributed into water, soil and fatty tissues in wildlife such as fish. Findings indicated buckyballs have a greater chance of partitioning into fatty tissues than the banned pesticide DDT. However, while DDT is toxic to wildlife, buckyballs currently have no documented toxic effects, Jafvert said.
"This work points out the need for a better understanding of where the materials go in the environment," he said. "Our results show they are going to be taken up by fish and other organisms, possibly to toxic levels. This, however, indicates only the potential of buckyballs to bioaccumulate. They could break down in the environment or in an organism once taken up." Researchers do not yet know whether buckyballs will break down in the environment or will be metabolized by animals, which would reduce the risk of accumulating in fatty tissues.

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