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Lotus Nanotech

Makarand writes "The lotus, a flowering plant native to Asia whose waxy leaves repel water droplets and particles of dirt, is teaching nanotechnologists a thing or two. Scientists at BASF have found that the lotus plant surfaces have a coating of wax crystals around 1 nm in diameter. This roughness on the nanometer scale helps the plant surface to reduce the actual contact area to 2-3% of the droplet covered area making its surfaces superhydrophobic. If the surface is slanting, the droplet rolls off, instead of sliding off, picking up small particles of dirt on the way giving a "self-cleaning" effect. BASF is now working on an aerosol spray to coat a surface with such a self-cleaning nanostructure. The self cleaning shoe might soon be a reality."

161 comments

  1. Self Cleaning Shoes by Ninja+Master+Gara · · Score: 2, Funny

    Just what we need, putting more people out of work by making them redundant. tsk.

    --

    ---
    When I grow up, I want to be a kid again.
    1. Re:Self Cleaning Shoes by melonman · · Score: 1

      How many /.ers clean their shoes anyway?

      --
      Virtually serving coffee
    2. Re:Self Cleaning Shoes by Anonymous Coward · · Score: 0

      Shoeshiners must organize a lobbying group to protect their endangered business model!

  2. self cleaning windows by cat_jesus · · Score: 5, Interesting

    Forget the self cleaning shoe. This will be great for windows on skyscrapers.

    1. Re:self cleaning windows by Ninja+Master+Gara · · Score: 3, Insightful
      That said, in its current form, the spray may affect the colour of dark surfaces as its layers are slightly opaque. The coating can also be mechanically unstable on smooth surfaces. But BASF is working to overcome these problems.

      Glass isn't in the market yet, but looks like it'd made a great varnish. No more coasters!

      --

      ---
      When I grow up, I want to be a kid again.
    2. Re:self cleaning windows by melonman · · Score: 2, Informative

      Until the coating half wears off and then you have to wash the entire skyscaper with tetrachlorowhatever to get the residue off. Products like this for glass already exist. Tried them on my car. Once.

      --
      Virtually serving coffee
    3. Re:self cleaning windows by Ed+Avis · · Score: 1

      Or computer monitors shared between several users, some of whom seemingly have a tendency to fry eggs on the screen.

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      -- Ed Avis ed@membled.com
    4. Re:self cleaning windows by Anonymous Coward · · Score: 4, Informative

      It does exist and is avaliable: http://www.pilkington.co.uk/australasia/australia/ english/building+products/whats+new/news+items/pil kington+activ.htm L.

    5. Re:self cleaning windows by Anonymous Coward · · Score: 0


      Have a look at Pilkington's ACTIV glass.
      On the market.

      http://www.pilkington.co.uk

    6. Re:self cleaning windows by skeedlelee · · Score: 3, Insightful

      This seem a little odd to anyone else? If the particles are ~1nm they really shouldn't significantly interact with visible light passing through it all that much should they? My guess is that yes, the surface is rough at the ~1nm scale but the coating itself is 100's of nm thick, when the hydrophobic polymers are considered. Or perhaps their spray technology still need a bit of work, if they're spraying globs of particles that could explain it as well.

    7. Re:self cleaning windows by Ratface · · Score: 3, Informative

      ... and this earlier Slashdot article about the self-cleaning glass concept.

      --

      A little planning goes a long way...
    8. Re:self cleaning windows by citizenkeller · · Score: 5, Funny



      anybody else feels a bit strange at the thought of lotus technology applied to windows?

      </silly mode>

      --
      -- Serge K. Keller
    9. Re:self cleaning windows by Rassleholic · · Score: 1, Funny

      I don't think there is a chemical out there that will clean up that OS.

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      Not noteable, IMO a rubbish article.
    10. Re:self cleaning windows by randomErr · · Score: 5, Informative

      Self-Cleaning Glass is already out. Pilkington has had it for about a year and a half.

      This ActivGlass as it called does one better the this coating because not only does it repel water, it also uses sunlight to kernel up dirt so when that when it rains that dirt just runs off.

      --
      You say things that offend me and I can deal with it. Can you?
    11. Re:self cleaning windows by Quixadhal · · Score: 3, Interesting

      Forget windows... how about self-cleaning dishes?

      Of course, I'd want the habenero-flavored coating myself...

    12. Re:self cleaning windows by Ninja+Master+Gara · · Score: 1

      The ACTIV glass operates on a completely different principle. In the context of the article, glass is not a practical coating surface for the BASF spray application at this time.

      --

      ---
      When I grow up, I want to be a kid again.
    13. Re:self cleaning windows by Anonymous Coward · · Score: 0

      If it wasnt for the silly mode tags you'd have had a +5 Funny for sure, now you just have a -1 too fucking naieve to be on the planet.

      Fuck-diddly-uck off Flanders!

    14. Re:self cleaning windows by demonbug · · Score: 2, Funny

      Forget self cleaning windows, how about self cleaning self? Just spray this stuff on myself, and no more showers! I bet chicks dig the waxy coating, too.

    15. Re:self cleaning windows by abcho · · Score: 2, Informative
      Activglass is hydrophilic (ref), not hydrophobic - as in the lotus leaf!

      So, ActivGlass does not "repel" water or faciliate water beads, it spreads water evenly on the glass surface. The two technologies are entirely different, but may have similar applications. I would think that a hydrophobic surface would work better - since the longer water sticks to the surface, more additional flying dirt will be captured by the water!

    16. Re:self cleaning windows by Anonymous Coward · · Score: 0

      I don't think there is a chemical out there that will clean up that OS.

      Alcohol?

    17. Re:self cleaning windows by Anonymous Coward · · Score: 0

      Thanks for the heads up that you were in silly mode!

  3. History repeats itself by Anonymous Coward · · Score: 0

    And we'll all soon be covering ourselves exclusively with tree leaves.

  4. Human Use by bjb · · Score: 1
    Now if only some people could apply this same cleaning mechanic, then the world would probably be a much more attractive place. Oh, just add perfume.

    Though I guess we'd have to spray them every once in a while..

    --
    Never hit your grandmother with a shovel, for it leaves a bad impression on her mind...
    1. Re:Human Use by serlaten · · Score: 1

      But, what if it repels perfume?

      ...and all sweat will slide down to the my shoes...

      Let's limit the usage of this stuff to scyscraper windows and shoes, please.

    2. Re:Human Use by GeckoFood · · Score: 1

      I'd be happy enough if I could just spray it on my kids, then I wouldn't have to give them a bath! Of course, if they couldn't get dirty, I suppose they'd be pretty upset with me! LOL!

      --
      Be excellent to each other. And... PARTY ON, DUDES!
    3. Re:Human Use by EggplantMan · · Score: 2

      Perfume consists mainly of organic molecules, so I tend to think that they would go together fine.

      --

      ?-|||-----x<*))))><
  5. Self cleaning shoes? by Sam+the+Nemesis · · Score: 4, Insightful

    For this thing to work as in lotus, shoes will need water droplets to be sprayed on them.

    1. Re:Self cleaning shoes? by girl_geek_antinomy · · Score: 2, Funny

      Isn't that usually known as rain...?

  6. Aerosol spray, eh? by RomikQ · · Score: 5, Funny

    And what if you got some of the spray onto your socks while applying it to your shoes... I can see it now - forever stinking, laundry-resistant... oh the horror!

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    1. Re:Aerosol spray, eh? by Sh0t · · Score: 0, Redundant

      Thats an interesting idea.

    2. Re:Aerosol spray, eh? by Jump · · Score: 1

      But you will be able to walk with your socks on water! Jesus, now we know how you did it!

    3. Re:Aerosol spray, eh? by gm-7 · · Score: 1

      No, it's just that you won't get wet feet when you sink like a stone.

      --
      Sig (appended to the end of comments you post, 120 chars)
  7. Shoe polish by NeoSkandranon · · Score: 5, Interesting

    If this becomes a reality, expect to see it in Kiwi shoe polish. Thousands of ROTC students and millions of military personnel would be a pretty good market for Kiwi Black Self-cleaning(TM) ...dunno how you'd buff it though, considering it repels water so violently

    --
    If you can't see the value in jet powered ants you should turn in your nerd card. - Dunbal (464142)
    1. Re:Shoe polish by kingOFgEEEks · · Score: 1

      wouldn't the water resistance be somewhat similar to current (oil-based) shoe polishes. Last time i checked, the stuff they used repelled water fairly well when it was in large quanitity.

      --
      mechanicos ergo cogito
    2. Re:Shoe polish by abhinavnath · · Score: 2

      You don't need water to buff it! Although some militaries teach soldiers to use water, you can get a good shine by just buffing it dry, with wax-based polish.

      --
      My other sig is also a .Porsche
    3. Re:Shoe polish by drinkypoo · · Score: 2

      I'm sure the military won't allow it. It would reduce the effectiveness of your drill seargeant pissing on your boots.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    4. Re:Shoe polish by Jester99 · · Score: 2

      Now why in the hell would Kiwi want to do that?

      "Look! Just buy this one can of shoe polish from us, and you'll never need another."

      "Erm. Hm. Scratch that. Just buy the old stuff. Over. and over." :P

  8. Sweet by Soporific · · Score: 5, Funny

    I'll just be able to give myself a coating and not worry about bathing for a year.

    ~S

    1. Re:Sweet by NeoSkandranon · · Score: 5, Funny

      You'd just have to run around naked in the rain to get it to work properly =p

      --
      If you can't see the value in jet powered ants you should turn in your nerd card. - Dunbal (464142)
    2. Re:Sweet by Soporific · · Score: 1

      I think people would spit on me if I ran around naked, but it should have the same effect. ~S

    3. Re:Sweet by ottffssent · · Score: 2

      As long as you can avoid getting arrested for running naked through the rain, yes!

    4. Re:Sweet by machine+of+god · · Score: 1

      Coating yourself in kiwi shoe polish is a little far to go man..

    5. Re:Sweet by abhinavnath · · Score: 5, Funny

      You'd just have to run around naked in the rain...

      So take a shower, is that what you're saying? Dammit that doesn't help at all.

      Accursed lameness filter.

      --
      My other sig is also a .Porsche
    6. Re:Sweet by RebelWithoutAClue · · Score: 1

      What about stuff that comes up underneath the coating ?

      Like sweat ...

      The Ultimate unwashable body ... :P

      --
      "However beautiful the strategy, you should occasionally look at the results" - Winston Churchill
    7. Re:Sweet by Valluvan · · Score: 1

      more like...cannot bath for a whole year, since much dirt originates from within the body..

      --

      Science as a way of life.
    8. Re:Sweet by EggplantMan · · Score: 2
      ... and not worry about bathing for a year.
      Yes, only this time you'll be clean.
      --

      ?-|||-----x<*))))><
  9. Finger prints on my monitor? by babylon93 · · Score: 1

    What can they do for all these dang fingerprints on my monitor?

    1. Re:Finger prints on my monitor? by k98sven · · Score: 2

      What can they do for all these dang fingerprints on my monitor?

      Truth is, not much. Fingerprints are fat, and are
      as such hydrophobic. Not only that, they're very small (mass-wise) and are spread out,
      which means a lot of surface area per unit of fingerprint substance.

      I'd just recommend: Keep your fingers off the monitor!

      As a help, you *could* coat your monitor with some carcinogenic toxin that is absorbed through the skin. (There are quite a few good candidates)

      Or how about removing the ground from the CRT? As soon as you touch the bugger: *ZAP*
      (Pavlov's dogs, anyone?)

    2. Re:Finger prints on my monitor? by brunes69 · · Score: 2

      Heres an idea... don't touch your monitor??? Why would you be doing this anyways, unless its a touchscreen?

    3. Re:Finger prints on my monitor? by Anonymous Coward · · Score: 0

      The same reason you might use a finger to hold your place on a piece of paper. You know, with visually busy things like tables of numbers.

    4. Re:Finger prints on my monitor? by Anonymous Coward · · Score: 0

      Use the mouse pointer.

      Oh wait, lemme guess... you use console mode!

    5. Re:Finger prints on my monitor? by Anonymous Coward · · Score: 0

      Right. Because mouse pointers NEVER move when you dont want them to.

    6. Re:Finger prints on my monitor? by Myco · · Score: 2

      A trackball will keep your place more reliably than a finger.

  10. Somebody call Fess Parker by Anonymous Coward · · Score: 5, Funny

    making its surfaces superhydrophobic.

    Jim get the shotgun, the lotus has the hydrophoby!

    Explanation

  11. Not new by DarkDust · · Score: 5, Interesting

    This is Lotus effect is actually known for some time now. I saw an article about it and the (already successful) attempts to mimic this well over a year ago. My girlfried, who is varnisher, said there is already varnish avaible with such an effect but it's way too expensive to paint a car with it. And AFAIK there is already keramics avaible with this effect, being very expensive, too. But as always, prices should drop once going into mass-production :-)

    1. Re:Not new by Anonymous Coward · · Score: 0

      Wow, I just remembered something my mom told me a few days ago.

      My parents bought a new (2003) Ford truck. The salesman said that all the new trucks have a special long lasting wax on them that repels dirt and water stains. Every six months they can take it into the dealer and get a new coating of that wax put on. I thought it was a bunch of hooey at first, but now I guess the sales guy was telling the truth.

  12. I could use some of that..... by h4mmer5tein · · Score: 1

    On my glasses! No more waiting till I can hardly see through them before I wipe them off and think "Jeez, I really should clean these more often!"

  13. This has been around... by Space+Coyote · · Score: 3, Funny

    remember this?

    Colonel Homer's outfit when he became Lurlene Lumpkin's manager..
    "Now this is made from a space-age fabric especially designed for Elvis. Sweat actually cleans this suit!"

    --
    ___
    Cogito cogito, ergo cogito sum.
  14. Uhhh, what about an Automobile... by awfar · · Score: 5, Interesting

    where massive amounts of fresh water are wasted every day to wash them (not to mention the long lines on Saturday mornings). And, this hydrophobic nature would make the body last even longer even here in Michigan(!). Or, a boat that doesn't soil so there is no need to pollute the lakes and streams with cleaners. Or, durable items that look as good as new for twice as long, reducing the human (or American) need to replace items with new looking appliances...

    This is a great innovation.

    1. Re:Uhhh, what about an Automobile... by Anonymous Coward · · Score: 0

      This might be the case, but whatever the final spray product is, it might not be any better than the cleaning agents you're talking about. Why don't we slow down and really look at what we're doing for once. Here we have a product that could help us shift-delete many cleaning products we use. But if we don't carefully evaluate its impacts before putting it on the shelves to reap its profits, it will just be another added to the long list.

    2. Re:Uhhh, what about an Automobile... by Anonymous Coward · · Score: 1, Insightful

      >reducing the human (or American) need ...

      I'm glad you appreciate the distinction!

      This is not meant to be a troll, but just consider how much Americans (i.e. the US) consume, waste and pollute compared to everyone in the rest of the world.

    3. Re:Uhhh, what about an Automobile... by Anonymous Coward · · Score: 0

      massive amounts of fresh water are wasted every day to wash them

      Hey. I only wash my car twice a year, and I don't use fresh water. I find that child's urine works best. It can be hard to get if you don't have a child, so if you're in that boat, try to convince any friends you might have that have children to save it for you. It keeps for at least a year, if you use plastic containers (I prefer milk cartons).

    4. Re:Uhhh, what about an Automobile... by Anonymous Coward · · Score: 1, Interesting

      Boats would go faster :-)

    5. Re:Uhhh, what about an Automobile... by drinkypoo · · Score: 2
      I rarely wash my car. When I do, I use a drive-through car wash because I have a sports car and it is slick and smooth, thus actually gets clean going through those stupid things. At that point you can solve the pollutant problem at the car wash, which only uses a fairly nonoffensive detergent and ionized water anyway.

      Also, people replace appliances not because they are dirty, but so that they can keep up with the icons on their neighbors' appliances, and because crappy electronics break when subjected to dumb americans poking and prodding them indiscriminately. Even game consoles are susceptible; One of the neighbor kids pushed on his PS2's drawer too hard and it went off the track. I fixed it for him, big woop, but most people won't be able to and they'll just discard and replace.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    6. Re:Uhhh, what about an Automobile... by WTFRUDOINBiotch · · Score: 1

      And this is exactly why it may never be mass produced. Can you imagine a car company volunteering to reduce its base of repeat customers?

      --
      Make money with Real Estate Investing
  15. I wonder how long by Anonymous Coward · · Score: 1, Flamebait

    it will be until we discover that all this nanotech casuses cancer.

    Releasing a bunch of human engineered particles into the environment where they will be easily sucked into the lungs should be monitored closely.

    Silicosis, Asbestosis...

    1. Re:I wonder how long by shaitand · · Score: 5, Funny

      When are we going to realize that lab rats are cancer prone in general? I think lab rat, I think cancer on a stick.

    2. Re:I wonder how long by Anonymous Coward · · Score: 0

      > I think lab rat, I think cancer on a stick.

      I wonder what the poor old lab rat thinks of you.

      An 'agonizing death on a stick' maybe?

  16. Nature by Anonymous Coward · · Score: 5, Insightful

    Some people wonder why we should bother about the environment and saving plants and animals: this is why. All our great ideas come from Nature. 4+ billions years has have gone into "designing" the various flora/fona alive now and it would be extremely dumb to waste all the R and D.

    Some other things ideas from nature:

    • the airplane wing
    • sonar
    • radar (bats) (okay, similiar to sonar)
    • several plants have been use for medicines

    There's also research being done in using some kinds of spider silk to replace steels cables: three times stronger and about half the weight. I wonder what things we'll never discover because the plant/animal species has gone extinct.

    1. Re:Nature by Anonymous Coward · · Score: 0

      It took way less than 4 billion years to do it. In fact, everything was designed in less than a week.

    2. Re:Nature by Anonymous Coward · · Score: 0

      fucking tree huging hippies, they say they wanna save the earth, but all they do is smoke pot and smell bad

    3. Re:Nature by benzapp · · Score: 2, Funny
      Of course, we can't forget the three biggest conrtributions from nature

      Marijuana - the classic

      The Poppy - heroin, morphine, opium... God's own medicine

      Coca - cocaine. Nature's best stimulant

      Just think of how boring civilization would be if it was not for these three mind alterning substances.

      PS: Yes, so the heroin has some acetic acid, but you could conceivably get that from fermenting some fruit...

      --
      I don't read or respond to AC posts
    4. Re:Nature by Anonymous Coward · · Score: 0

      Nature is too proprietary, in another billion years your technology will be obsolete.

    5. Re:Nature by jaredcoleman · · Score: 1

      Point of correction: The airplane wing is less a product of nature than physics. Funny thing is, it was looking at the way birds flew that kept many people from discovering how to keep a plane in the air. All the way back to da Vinci (maybe before), people had designed flapping wings, like birds. The ornithopters were a miserable failure, and it wasn't until this idea was jettisoned that flight really took off (pun intended).

      Not to take away from your point, though. Studying nature is often extremely fruitful.

    6. Re:Nature by beat.bolli · · Score: 1

      In my book, everything was implemented in six days, there's no mention of the design phase... ;-)

      --
      Karma: none (due to not believing in reincarnation)
    7. Re:Nature by mattdm · · Score: 3, Insightful

      Point of correction: The airplane wing is less a product of nature than physics.

      Since when is physics supernatural?

    8. Re:Nature by jaredcoleman · · Score: 2

      I think you missed the point. We are talking about the OBSERVATION of nature, which is much different than designing something from scratch to take advantage of laws of physics. I didn't think I had to make that difference explicit, but then, that assumes that you read the posts...

    9. Re:Nature by Anonymous Coward · · Score: 0

      over-smart bastard. there are no birds that fly like planes do.

    10. Re:Nature by anshil · · Score: 1

      Your wrong. The wright bothers designed their wings by looking _closly_ on how the wings of birds were shaped, and so discovered the classical wing form, without understand much of aerodynamics. You know the flat downside and curved upside, so still the birds teached us how to fly!

      --

      --
      Karma 50, and all I got was this lousy T-Shirt.
    11. Re:Nature by mattdm · · Score: 2

      Nothing is designed from scratch, *especially* when it comes to physics. Planes *do* fly the way birds do; we just were making poor observations about what it was that made birds fly -- all of the flapping is distracting. In fact, the Wright brothers' success came directly from watching birds wings and understanding better exactly what was going on.

    12. Re:Nature by mattdm · · Score: 1

      Well, the birds don't use jet fuel, but the principles are the same.

    13. Re:Nature by renoX · · Score: 2

      Physics can be "supernatural": some physics experiments can produce condition which does not exists in the nature: for example, very low temperatures have been produced much lower than exists in the natural world.

  17. oven by dkurtev · · Score: 1

    i thought they had this sort of coating on expensive ovens.

  18. Nice Pants by vasqzr · · Score: 1


    Remember the stain-resistant Dockers?

    Water rolls right off them!

    Stain Defender

    1. Re:Nice Pants by Cyno01 · · Score: 2

      I'd think teflon coated pants would be very hard to sit in.

      --
      "Sic Semper Tyrannosaurus Rex."
  19. Scientists Also Discovered ... by LordYUK · · Score: 5, Funny

    ... that if you turn the lotus sideways, it produces 3 resources, or "mana" if you will, before burying itself at the end of the round.

    --
    This is my sig. Its pathetic.
    1. Re:Scientists Also Discovered ... by mblumber · · Score: 1

      When i saw this post, I thought, "better post a reference to the Black Lotus; no one else is as nerdy as I am and would be thinking about a Magic card from 10 years ago".

      One again, thank you Slashdot for exceeding my wildest expectations!

      --
      Anyone who posts about bad moderation are themselves off-topic and should be moderated accordingly.
  20. I have 3 words. by dhsmith · · Score: 1, Funny

    Self Cleaning Pants. It's about to be the year 2003, and we're starting to have the technology for the ultimate pants. I'm talking about the kind of pants that Sci-Fi authors of old dreamed of. We have the Dockers with extra pockets for our gadgets, and the Levis with radiation sheilding. And now with this substance we will be able to make The Ultimate Pants! I see a utopia in our near future where the free people of Earth are released from the slavery of washing their gadget toting pants. Oh the luxury!

  21. The best application by TiMac · · Score: 4, Interesting

    Coat waterslides in this stuff. Imagine screaming down a waterslide that has virtually no friction. WHEEEEEEEEE!

    --

    1. Re:The best application by duggy_92127 · · Score: 1
      Coat waterslides in this stuff. Imagine screaming down a waterslide that has virtually no friction.

      Actually, the coolest part about this would be slowing you down at the bottom. Dumping you into a pool would be too dangerous, I'd think; you'd be going too fast, and the water would hurt.

      Imagine, however, that the slide angled upwards right at the end, to let gravity slow you down a little. Done properly, the slide could end up sliding you gently across an almost horizontal surface, ala Slip'n'Slide, and finally dump you into the pool.

      That would rule.

      Doug

    2. Re:The best application by Anonymous Coward · · Score: 0

      It's been along time. But when I was younger I used to go to a water park called Waterworld in Houston (part of Six Flags). There, they had this really tall slide called the Edge. The big deal about this slide is that on the average, you pick up speeds up to 40Mph. Once you end up at the bottom, you skip on a few inches of water on the slide like a stone skipping of a pond (if you lift your feet up a bit). Needless to say, it was fun as hell.

  22. IBM by Anonymous Coward · · Score: 0

    "Lotus Nanotechnology"

    I bet IBM is pleased that their investment is finally paying off

  23. More ideas from nature by mtec · · Score: 2, Funny


    The couch (big flat rocks with lumbar support)
    Fast food (grubs)
    Pamela Anderson (Grand Tetons)
    The Rolling Stones (dinosaur fossils)
    Windows (swarms of locusts)

    --
    Cake or Death? Cake Please!
    1. Re:More ideas from nature by Anonymous Coward · · Score: 0

      Also from nature...

      • Linux (useless, unattractive, flightless bird)
      • GNU (a hopeless, blundering animal that limps along on vast, pointless migrations. The GNUs only real purpose is to be eaten alive by lions, cheeters and other stronger species.
  24. Patents by Anonymous Coward · · Score: 0

    Wilhelm Barthlott, a botanist from the University of Bonn in Germany, first explained the phenomenon and now owns a patent and the Lotus Effect trademark. Am I the only one who has a problem with this sentence?

    1. Re:Patents by HBPiper · · Score: 1

      Nope. But can the plant file suit for prior art? Maybe IBM will! Has anybody filed a patent on zebra stripes as a method of visual obfuscation yet?

      --
      "I went on a diet, swore off drinking and heavy eating. And in fourteen days, I had lost exactly two weeks. Joe E. Lewis
  25. smelly? by the_mind_ · · Score: 1

    Self Cleaning Geeks!

    --
    You feel sleepy. Close your eyes. The opinions stated above are yours. You cannot imagine why you ever felt otherwise.
  26. Now... by Anonymous Coward · · Score: 0

    If you could just think of some way to replace that big wad of tape in the middle.

  27. Bwahahaha by deathcloset · · Score: 0

    The final step to my perfect creation! http://64.49.221.207/pix/drwmke/bestwaddblok.jpg

    1. Re:Bwahahaha by deathcloset · · Score: 0
  28. God! by mtec · · Score: 0

    Such a kidder... (and He reads Slashdot...)

    --
    Cake or Death? Cake Please!
  29. Is this really nanotech? by henben · · Score: 4, Insightful

    I can remember when nanotech implied nano-scale machines. Surely a clever (but passive) new type of coating is materials science, or something?

    1. Re:Is this really nanotech? by whovian · · Score: 1

      "Nano"-anything is today's buzzword. The science research funding situation is such that anything to which you can attach "nano", the more revolutionary hence fundable your idea will sound.

      --
      To-do List: Receive telemarketing call during a tornado warning. Check.
    2. Re:Is this really nanotech? by ebassi · · Score: 1

      I can remember when nanotech implied nano-scale machines

      Nano-technology is a technology that deals with the nanometers (10^-9 meters) scale. Nanomachines are a product of nanotech, but this stuff qualifies too, since it deals with ~1nm crystals.

      --
      You can save space. Or you can save time. Don't ever count on saving both at once. -- First Law of Algorithmic Analisys
    3. Re:Is this really nanotech? by Anonymous Coward · · Score: 0

      This is nanomaterials engineering, which is the basis of nanotech research, especially today. (I.e., we haven't progressed too far beyond that yet -- at least not much in the way of commercially viable applications.) You can't start building nano-scale machines if you can't control materials at the nano-meter scale. It's just the first step in a field that we hope will produce some very exciting results over the next few decades. So yes, this is nanotech.

  30. Finally! by Anonymous+Custard · · Score: 2

    Finally, I'll no longer have to waste hours and hours each day cleaning my shoes!

  31. modern society isn't all that smart by f00zbll · · Score: 0, Offtopic

    About the only thing modern society can lay claim to is disregaurd for nature and progressing genocide. Just because other cultures didn't create gargantuan polution factors, spewing tons of poisons every hour doesn't make them less advanced or some how backwards. We have the british and christianity to thank for that assinine perspective. "Manifest destiney" is a great excuse to rape and pilliage everything in sight for the sake of "advancement". I'm not claiming innocence here, just pointing how incredibly stupid we have been the last 500 years. Our ancestors managed to keep the planet relatively clean for 2K years, until some idiot started the industrial revolution. The achievements of organized religions are tremendous and horrifying. One one hand we have all the homeless people they save each year. On the other end, we have the rapid degeneration and depletion of the planet's resources. Something drastic changes have to happen in the next 100 years to turn things around. At the current, mother nature is going to come up with some super bug to wipe human kind off the face of the earth.

    1. Re:modern society isn't all that smart by Anonymous Coward · · Score: 0

      no.

      our ancestors didn't keep the planet relatively clean for 2k years. ever wondered why there are practically no woods in spain? think armada.

      the list goes on and on...

      the only thing that has really changed is the size of the human population on this planet. 5 or 6 billion people produce a lot of waste. feeding, dressing,... these people without the methods of the industrial revolution is simply impossible. addressing this as stupidity is stupidity itself.

      if you really want to be a friend of the earth, you have to be a foe to all humans. (didn't t.c. boyle say that?)

      sic luceat lux.

  32. Yep. I've heard.... by Jonathan+Hamilton · · Score: 1, Funny

    I've hear that American's have the richest piss out of any country. (We have the most protein, vitamins, minerals etc.)

    Damn it's good to be an American. A Somolian could probably live off my piss.

    1. Re:Yep. I've heard.... by Anonymous Coward · · Score: 0

      Yes, keep flushing. Screw the "if it's yellow let it mellow" I've got crops to fertilize. Oh, and keep up whatever is causing that heavy metal poisoning, your mercury extracts are keeping me in goat-pr0n.

  33. What ... by torpor · · Score: 2

    Americans aren't Human too?

    I thought so, but confirmation on /. of these sorts of things always makes life easier.

    --
    ; -- the corruption of government starts with its secrets. a truly free people keep no secrets. --
  34. Shoes? by Jump · · Score: 1

    Forgett about self-cleaning shoes. I think the major application will be self-cleaning cars and buildings. Imagine how much water will be saved by this!

  35. At BASF... by Anonymous Coward · · Score: 3, Funny

    ...we don't make a lot of the nanotech you buy, we make a lot of the nanotech you buy, deadlier.

  36. The original finder by Anonymous Coward · · Score: 1, Informative

    Hi! IIRC the principle of the so-called Lotus Effect was originally found by Prof. Dr. Barthlott of the University of Bonn. http://www.botanik.uni-bonn.de/system/bionik_flash .html btw, the application of such a finish to glass would result in a certain matteness because of the nanostructure, so this might not be the solution to get self-cleaning glasses. greetings, Harleqin

  37. that's not egg white matey by DrSkwid · · Score: 2

    well, not chicken eggs anyway.

    --
    There are places where the networks are not touching,and there are places where they are-Boeing's Lori Gunter
  38. sad that being human is a crime against society by DrSkwid · · Score: 1

    get those pants on or it's off to chokey

    --
    There are places where the networks are not touching,and there are places where they are-Boeing's Lori Gunter
  39. I have a better solution by DrSkwid · · Score: 4, Funny

    I don't clean my car, haven't done for 2 years or so and my car is white.

    The dirt seems to reach equilibrium.

    --
    There are places where the networks are not touching,and there are places where they are-Boeing's Lori Gunter
  40. Scrue the self cleaning shue... by dallask · · Score: 1

    I want the self cleaning car! ever since the gas station I frequent broke its car wash (8 months ago) Ive yet to get it washed...

    *bad owner, BAD!*

    --
    The Code Ninja is swift with his tool, precise in his delivery, and deadly accurate in his execution.
  41. woulda been handy a few weeks ago.. by claude_juan · · Score: 1

    on my car after those little bastards hit it with an egg!

  42. Oilphobic by cyricv · · Score: 1

    Anyone know what they are using to make this waterphobic? Are they using wax? Anyone know if what they are using is oilphobic too?

  43. Great! by superdan2k · · Score: 1

    So the first time I go to run across a wet street, I get to head-plant in front of hundreds of people!

    But at least the soles of my shoes will be clean!

    Note: I am refraining from the mom-checking-for-clean-underwear jokes.

    --
    blog |
  44. Rain? by Anonymous Coward · · Score: 0

    Bah-Low-Me sweetie! No more pecker tracks on your
    geeky tits. Just coat your vagina with this stuff and wahoo! Birth control for geekettes. May even make it slicker...ooooh.

    1. Re:Rain? by Anonymous Coward · · Score: 0

      So... vi or emacs?

  45. Toilet bowls? by TopShaman · · Score: 1

    Hasn't anyone rad "The Mote In God's Eye" by Pournelle? Didn't the moties 'fix" the toilets with effect thus reducing the need for water to flush. Self flushing toilet bowls? Now that is beneficial!!

    1. Re:Toilet bowls? by Anonymous Coward · · Score: 0

      Ya, the bowl is so slick that you watch in awww as your turd effortlessly bounces around before making a glorious exit *without* leaving a mark on the porcelain. Yey!!

    2. Re:Toilet bowls? by Anonymous Coward · · Score: 0

      Yes, i think they did. I cannot remember it clearly because I read the book quite a while ago and AFAIR the moties fix several things :).
      But it's a really good one, I recommend reading it! SF as it should be...

  46. Where was this stuff.. by grub · · Score: 1


    .. in my youth? It would have eliminated the revolting "Stinky Dink" I woke up with too many times.

    --
    Trolling is a art,
  47. Superhydrophobic by Anonymous Coward · · Score: 0

    Actually, the place this will have a serious effect is in condensors for power plants and such. Getting the heat through the layer of water on the surface is a real limitation.

  48. Products already available! by egghat · · Score: 3, Interesting

    You need self cleaning glass? Look here.

    You need a self cleaning toilet? Look here.

    I'm sure that there will be many more examples of this great technology in the next months.

    Bye egghat.

    --
    -- "As a human being I claim the right to be widely inconsistent", John Peel
  49. That's really really old news by Fafnir_b · · Score: 1
    A team of ressearchers has been awarded the Philipp-Morris-Price for work on the lotus effect in 1999 (see here).

    Additionally, you noone should hope for lotus-effect-coated cars too soon. The automobile industry has been searching for "anything-repelling" coatings for ages now and one of the counterparts (apart from car washers losing their jobs) is that you simply cannot coat repelling coatings, so if you have to repair the coating after an accident, this simply won't work (or will be very expensive). There will certainly be a use for this technique, but it'll probably not be as obvious as most people think.

  50. Superhydrophobic? by rizzo · · Score: 2

    You mean it's got rabies?

    --

    "More organs means more human." - Zim

  51. Spray this on my keyboard... by Anonymous Coward · · Score: 0

    So now I can spill my coffee onto my keyboard and not have to call tech support and admit my stupidity... cool!

  52. More applications, more background by mt-biker · · Score: 1

    I've seen roof-tiles with the lotus effect advertised here in Germany. Not that having a clean roof is a major priority for most of us - perhaps they're just easier to make?

    Did a little search and here's some information from the Fraunhofer institute about their research (no, they don't _just_ make MP3 codecs).

    They also link to this page which is a federally funded research project who are looking at applying microstructures onto large surfaces...

  53. Forget artificial objects... by FuzzyFurB · · Score: 1

    Forget shoes, windows, and cars. Think people! Just spray it all over your body and you'll never need to shower again, just run through a lake, or if you do decide to shower now soap is necessary? All the filth just rolls off your body. :)

    --
    Will Stokes Album Shaper http://albumshaper.sf.net
    1. Re:Forget artificial objects... by Anonymous Coward · · Score: 0

      Why has noone yet mentioned that doing this would clog up your pores making you prone to heat stroke and gaining lots of weight due to water retention?

  54. If they can solve the problems of ... by Presence1 · · Score: 1

    ... transparency and stability on smooth surfaces, this could be even better than the RainX-type coatings on windshields (which are already great), and could work well on the rest of the car as well.

    I wonder if it sheds water fast enough to prevent icing on airplane wings.

    In any case, this seems like a good example of BASF's advertisement tag line: 'we don't make the things you buy, we make the things you buy better'.

  55. But how long does it last? by Thag · · Score: 5, Insightful

    I mean, if the crystals are that small, how long before they erode away?

    On the lotus plant, I would imagine that the crystals are continually being replenished, and even then how long does the blossom last?

    Jon Acheson

    --
    All opinions expressed herein are my own, and not those of my employers, who are appalled.
  56. Nanotech water repellents in fabric already.... by user+flynn · · Score: 3, Informative

    "However, Soane had a test garment on hand, a men's shirt, made with fabric from the nanotechnology process. He gleefully poured water and coffee on it and the liquids ran off (onto Burlington's boardroom table) without being absorbed by the fabric. But he noted that pressure would cause the liquid to pan through the fabric." New Century News article

    --
    In the distance you hear an ominous moo.
  57. tires anyone? by vancleve · · Score: 1

    instead of using a waxy substance, use carbon or a stronger material and coat tires
    it could grab asphalt at the molecular level
    imagine the friction on those babies

  58. Gecko trap? by wiredlogic · · Score: 1

    The reduced contact area should prevent a gecko from gripping the petals. Now we can get rid of that little basterd from the Geico commercials.

    --
    I am becoming gerund, destroyer of verbs.
  59. This is like... by prabhath · · Score: 1

    those new shirts and pants that repel water-based liquids. They use a similar idea, add a bunch of hydrophobic polymers to the surface of a fabric in such a surface density that water cannot penetrate the fabric. However, this only applies to water-based liquids (i.e. wine, juices, etc..) Check it out, there's an article at Business 2.0.

  60. Oh How I Have DREAMED of this Day! by Anonymous Coward · · Score: 0

    Yes, the self cleaning shoe. Never far from my mind, either waking or in dream; thoughts of ever clean docksiders. My most heartfelt thoughts cling to the hope of walking in sand, dew and dog shit knowing that where ever I tread nano-technology is paving a cleaner way for me. My very soul just leaps at the idea of a shoe wax and desert topping all-in-one spray can. My sexual life will be greatly enhanced with such a spray! Imagine the thought of banishing to hell forever any worries of lubrication or cleanliness?

    Oh, but the shoes, the SHOES that are self cleaning!

    Some here may point out I am posting anonymously and there for am not serious. In fact they might say this post is dripping with sarcasm. Dash them all to HELL I say. This response was made out of pure love, Sun Beams and fairy dreams! I hope to see more articles like this posted on Slashdot while my own articles about ugly, terrible things like Tech Layoffs and the further eroding of privacy rights by extortionist EULAs are rejected. Rejected I say! :-)

  61. SLIPPERY. by _ph1ux_ · · Score: 2

    wouldnt this make the shoes you apply this to rather slippery and dangerous?

    This reminds me of the time I decided to pledge my hardwood floor. A friend came over right as I finished and said "Wow - your floor looks greaaaaaahhHH!!" thump. Oops!

    1. Re:SLIPPERY. by Anonymous Coward · · Score: 0

      I had a similar experience with floor polish. We worked really hard to put a super polish on a hardwood floor, only to find that, when we put the furniture back, it all slid to the middle of the room! Old house, warped floors...
      (Moral of the story: make sure your floors are level before you polish them!)

    2. Re:SLIPPERY. by Myco · · Score: 2

      Or at least apply the polish more evenly.

  62. self cleaning shoe? by cojonesdetoro · · Score: 0

    > The self cleaning shoe might soon be a reality."

    Screw the shoe. I like mine dirty, anyway. Now, a self cleaning windshield would be something!

  63. Could be the next by mtec · · Score: 1

    Scotchgard?

    --
    Cake or Death? Cake Please!
  64. How About Self-Cleaning Self??? by Anonymous Coward · · Score: 0

    No more showers, but boy, don't get accidentally get it in your eyes, ears or mouth!

  65. Best application for the new technology... by tlambert · · Score: 2

    The best application for the new technology is probably Grafitti.

    That way, when you tag something, you can spray this on top of it, and they will never be able to paint over your grafitti.

    -- Terry

  66. Whew! by ellem · · Score: 2

    I thought there was _another_ version of Notes coming out!

    --
    This .sig is fake but accurate.
  67. It should work on walls too... by Anonymous Coward · · Score: 0

    That would be especially nice! I'm working in a kind of jazz pub on a honorary basis (i.e. noone makes profit out of it and we're not paid, we're running shop just for fun...). The only things that are really annoying are
    a) graffity
    b) cleaning the restrooms
    As most graffity appear in the restrooms (strange), it would be really nice if they would just run off. This would give those kids spraying the restrooms a hard time and make me really very happy (Those kids are a pest... :( ). It would also help with those drunks who choose not to hit the toilet while urinating (or vomiting or whatever :P).

    Best regards from Germany!

  68. Lotus 1-2-3? by dereklam · · Score: 1

    Did anyone else think of Lotus 1-2-3 when they read the "Lotus Nanotech" headline?

  69. certainly fits with buddhism by shomon2 · · Score: 2

    The lotus plant is a metaphor in some buddhist schools of thought. "The most beautiful lotus plant grows from the muddiest swamp" - meaning that if you go through loads of problems and shit in your life, you will become the best person possible.

    If that means as a buddhist I have nanotech (albeit patented! - oi! shakyamuni should claim prior art!) shit repelling skin, all the better!

    Ale

  70. Re:what happens if... by EggplantMan · · Score: 2

    You shit your pants.

    --

    ?-|||-----x<*))))><