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A Bathroom That Cleans Itself

FiReaNGeL writes "Researchers at the University of New South Wales are developing new coatings they hope will be used for self-cleaning surfaces in hospitals and the home. It's made of a special nanoparticle coating that absorbs ultraviolet light below a certain wavelength and gives the particles an oxidizing quality stronger than any commercial bleach. Say goodbye to tedious bathroom cleaning!"

12 of 285 comments (clear)

  1. Oxidation? by afree87 · · Score: 1, Interesting

    So, this stuff will be floating into the air? Sounds pleasant.

  2. Hands? by mercuryswitch · · Score: 3, Interesting

    So does this clean your hands when you touch the surface?

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  3. My self cleaning bathroom by Andrew+Tanenbaum · · Score: 3, Interesting

    While planning my house, I was inspired by seeing a truck stop employee using a hose to clean the shop's bathroom. When I designed the house, I allowed the bathroom to be almost completely sealed, and had the walls poured in with concrete. The floor had a drain, and the roof had a high pressure rotating soap/water cycle sprinkler system. I'll follow up with some pictures in a minute.

    1. Re:My self cleaning bathroom by pz · · Score: 3, Interesting

      Many of the bathrooms in the Mediterranean countries are like this. Often, they lack a well-defined shower area, have no shower curtain, sporting just a wall mounted hand-held telephone style shower head, and a central drain. (It's up to the user to make sure they don't spray the toilet paper and render it less than optimally useful!) But everything dries quite nicely, thank you. It all depends on the local humidity and temperature.

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  4. Not a Biologist But... by Comatose51 · · Score: 4, Interesting
    How it works is that ultraviolet light below a specific wavelength causes electrons to excite and this gives the effects of oxidation. This oxidation disinfects better than commercial bleach.

    I'm not sure if I want to have that. I think "germs" and my cells aren't all that different in their ability to resist being killed. In fact, I think some germs can outlast my cells so intuitively, I don't think this idea is very safe. Maybe the right solution isn't to kill every thing but learn to live with bacterias, etc. Plus, it's not so much the micro-organisms that worry me but just rather bits of dust and hair that start to collect in some areas that bothers me and this idea doesn't really provide a solution to that.

    On the other hand, I've always wanted a titanium (not titanium oxide) clad bathroom that I can just torch or something to clean it the same way my oven does. When I first read the title, I thought someone figured out a smart and economical way of doing this.

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    1. Re:Not a Biologist But... by adpowers · · Score: 2, Interesting

      There still are potential problems. There was recently a report that Teflon-related chemicals are turning up everywhere, including 95% of humans tested. What if this gets into the bloodstream? Imagine this stuff comes off, gets into our bloodstream, and then we go outside. Would the UV from the sun penetrate deep enough to activate this? If so, I know I wouldn't want a bunch of oxidation catalysts floating around inside me.

  5. Re:Seems much better by Narcissus · · Score: 3, Interesting
    That's basically how some of the public toilets in NSW work. I don't know if these are the guys that do the ones that I'm thinking of, but it's basically the same thing.

    Every X number of uses the room shuts itself up and automatically sprays itself down with various sprinklers and so on. Quite interesting, I thought...

  6. No, it won't by robbak · · Score: 4, Interesting

    It will be stuck to the tiles and sinks. It will have an effect similar to oxidizing the biological stuff (germs, viruses, fungi) that contact it. The harmess gunk that remains will easily wash off.

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  7. Re:Darn French... by Deadstick · · Score: 2, Interesting

    There are pay toilets everywhere in Europe. They have a bad rep in the States, but over there you get what you pay for: the johns are sparkling clean. The free ones are not, especially in France.

    Of course, your average male Yank tourist has a bit of trouble getting used to finding a woman mopping around his feet...and having women come in to use the Messieurs when the Mesdames gets full may get a bit uncomfortable too.

    There are self-cleaning toilet seats in Autobahn gas stations in Germany. You drop a 1-euro coin in a slot to enter. When you get off the crapper it flushes itself, then a mechanical arm swings down with a brush and sprayer on it. The sprayer sprays, the brush spins, and the seat rotates 360 degrees...then as you leave, the coin mechanism spits out a coupon you can use to get your money back if you buy anything.

    rj

  8. As a janitor... by froschmann · · Score: 5, Interesting

    As a janitor, I can tell you that this will not eliminate the need for cleaning staff. The most important thing we do is replace supplies. The next biggest thing we do is fix unusual problems before they get to be a serious problem (lady flushes sanitary product, someone shits all over sink, etc.). As far as sinks and counters go, we polish mirrors, and then get hair and soap off of sinks. The most important thing is to have the bathroom look good. This might help with getting black gunk and algae out of toilets or sanitizing fixtures, but the important things will still require janitors. People never seem to realize the amount of critical thinking required. You can't replace cleaning staff with untrained or stupid people or machines unless you want problems. We notice things that a machine wouldn't notice and clean or fix. Paying attention to small things can really save your ass sometimes. For instance, if the tone drops on the vacuum cleaner, you have a slipping belt. If you ignore it, you get melted rubber all over the floor. An untrained person doesn't notice this, and has to pay to replace burned carpet. A machine has similar problems. You can't simply automate cleanup crews.

  9. Re:What about a shirt made of that? by Trejkaz · · Score: 4, Interesting

    Better yet, a keyboard made out of it, so that we don't have to put up with lame-ass stories about how there are so many bacteria on our keyboards compared to a toilet seat.

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  10. Re:Darn French... by StalinsNotDead · · Score: 2, Interesting

    The Americans With Disabilities Act likely has interfered with pay toilet deplyment. The smaller less comfortable standard units were sized in such a way to limit the ability to use them for other purposes beyond restroom use.

    The larger handicapped accessible units are both more expensive and more prone to abuse.

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