Heaving Dead Cats: Liquid Glass Is Groovy!

Happy Darwin Day everyone! Today is Darwin's birthday and in honor of him, I thought I'd post this article about Liquid Glass, which could possibly be the coolest nanotech material I've seen in some time. I think it's so cool mainly because of its versatility and the fact that it's already in use in Germany, the UK and Turkey.

Why am I talking about nanotech on Darwin's birthday? If you think about it, without evolution, we wouldn't be able to manipulate our world so deftly and with such finesse. About 195,000 years ago homo sapiens first appeared in the fossil record. We started leaving Africa about 70,000 years ago, and migrated as far as the Americas 14,500 years ago.

A mere 10,000 years ago, we were mostly hunter-gatherers in nomadic groups. The first proto-states were developed only 6,000 years ago. Think of that! Look how far we've come in such a short time!

Think of how we lived just 100 years ago in 1910.

By 1910 many suburban homes were wired up with power and new electronic gadgets.

Vacuum cleaners and washing machines had just become commercially available, though still expensive for middle class folks

The telephone was new, and millions of American homes were connected by manual switchboard

People relied on the paper for their news, but radio technology was in its infancy

The age of the airship was in full swing. Only 7 years previously, the Wright brothers had flown at Kitty Hawk

Henry Ford introduced the Model T 2 years before and sold about 10,000 of them this year

Advances in the use of gases meant the first electric refrigerators and air conditioning units.

Neon lighting was debuted in Paris

Inventions included: escalators, teabags, cellophane, instant coffee and disposable razor blades

Women still had another 3 years of corsets

Things they didn't have in 1910:

stainless steel

zippers

the modern bra

the modern band-aid

the pop-up toaster

sliced bread

But let's get back to Liquid Glass. You spray it on. It's transparent, non-toxic and can protect virtually any surface against almost any damage from hazards such as water, UV radiation, dirt, heat and bacterial infections. It's flexible and breathable, which means it can be used on all kinds of products.

The liquid glass spray (technically termed “SiO2 ultra-thin layering”) consists of almost pure silicon dioxide (silica, the normal compound in glass) extracted from quartz sand. Water or ethanol is added, depending on the type of surface to be coated. There are no additives, and the nano-scale glass coating bonds to the surface because of the quantum forces involved. According to the manufacturers, liquid glass has a long-lasting antibacterial effect because microbes landing on the surface cannot divide or replicate easily.

Liquid glass was invented in Turkey and the patent is held by Nanopool, a family-owned German company. Research on the product was carried out at the Saarbrücken Institute for New Materials. Nanopool is already in negotiations in the UK with a number of companies and with the National Health Service, with a view to its widespread adoption.

The liquid glass spray produces a water-resistant coating only around 100 nanometers (15-30 molecules) thick. On this nanoscale the glass is highly flexible and breathable. The coating is environmentally harmless and non-toxic, and easy to clean using only water or a simple wipe with a damp cloth. It repels bacteria, water and dirt, and resists heat, UV light and even acids. UK project manager with Nanopool, Neil McClelland, said soon almost every product you purchase will be coated with liquid glass.

Food processing companies in Germany have already carried out trials of the spray, and found sterile surfaces that usually needed to be cleaned with strong bleach to keep them sterile needed only a hot water rinse if they were coated with liquid glass. The levels of sterility were higher for the glass-coated surfaces, and the surfaces remained sterile for months.

Other organizations, such as a train company and a hotel chain in the UK, and a hamburger chain in Germany, are also testing liquid glass for a wide range of uses. A year-long trial of the spray in a Lancashire hospital also produced “very promising” results for a range of applications including coatings for equipment, medical implants, catheters, sutures and bandages. The war graves association in the UK is investigating using the spray to treat stone monuments and grave stones, since trials have shown the coating protects against weathering and graffiti. Trials in Turkey are testing the product on monuments such as the Ataturk Mausoleum in Ankara.

The liquid glass coating is breathable, which means it can be used on plants and seeds. Trials in vineyards have found spraying vines increases their resistance to fungal diseases, while other tests have shown sprayed seeds germinate and grow faster than untreated seeds, and coated wood is not attacked by termites. Other vineyard applications include coating corks with liquid glass to prevent “corking” and contamination of wine. The spray cannot be seen by the naked eye, which means it could also be used to treat clothing and other materials to make them stain-resistant. McClelland said you can “pour a bottle of wine over an expensive silk shirt and it will come right off”.

In the home, spray-on glass would eliminate the need for scrubbing and make most cleaning products obsolete. Since it is available in both water-based and alcohol-based solutions, it can be used in the oven, in bathrooms, tiles, sinks, and almost every other surface in the home, and one spray is said to last a year.

Liquid glass spray is perhaps the most important nanotechnology product to emerge to date. It will be available in DIY stores in Britain soon, with prices starting at around £5 ($8 US). Other outlets, such as many supermarkets, may be unwilling to stock the products because they make enormous profits from cleaning products that need to be replaced regularly, and liquid glass would make virtually all of them obsolete.

Thanks, PhysOrg

A bit more info on it:

The flexible and breathable glass coating is approximately 100 nanometres thick (500 times thinner than a human hair), and so it is completely undetectable. It is food safe, environmentally friendly (winner of the Green Apple Award) and it can be applied to almost any surface within seconds . When coated, all surfaces become easy to clean and anti-microbially protected (Winner of the NHS Smart Solutions Award ). Houses, cars, ovens, wedding dress or any other protected surface become stain resistant and can be easily cleaned with water ; no cleaning chemicals are required. Amazingly a 30 second DIY application to a sink unit will last for a year or years, depending on how often it is used. But it does not stop there - the coatings are now also recognised as being suitable for agricultural and in-vivo application. Vines coated with SiO2 don’t suffer from mildew, and coated seeds grow more rapidly without the need for anti-fungal chemicals. This will result in farmers in enjoying massively increased yields.

...The really clever part is that there are no added nano-particles , resins or additives- the coatings form and bond due to quantum forces. Our research informs us that in all probability, we offer the most versatile coating in the world. This technology is now available for domestic use in Germany. Full scale retail availability in the UK will commence in early 2010.