×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

"Superomniphobic" Nanoscale Coating Repels Almost Any Liquid

samzenpus posted about a year ago | from the keeping-it-dry dept.

Science 104

cylonlover writes "A team of engineering researchers at the University of Michigan has developed a nanoscale coating that causes almost all liquids to bounce off surfaces treated with it. Creating a surface structure that is least 95 percent air, the new 'superomniphobic' coating is claimed to repel the broadest range of liquids of any material in its class, opening up the possibility of super stain-resistant clothing, drag-reducing waterproof paints for ship hulls, breathable garments that provide protection from harmful chemicals, and touchscreens resistant to fingerprint smudges."

cancel ×
This is a preview of your comment

No Comment Title Entered

Anonymous Coward 1 minute ago

No Comment Entered

104 comments

and don't forget... (0, Offtopic)

Anonymous Coward | about a year ago | (#42621853)

cancer

How that compare to the non-stick bottle from MIT? (4, Interesting)

Taco Cowboy (5327) | about a year ago | (#42622015)

This "Superomniphobic" Nanoscale Coating Repels Almost Any Liquid, but on the other hand, MIT's also nanoscale Liquiglide non-stick coating allows even sticky stuffs such as ketchup to flow out of the bottle completely.

http://www.designboom.com/design/liquidglide-ketchup-bottle-by-mit-researchers/ [designboom.com]

I must admit that I'm not familiar with both of these technological development, so... Can someone familiar with them explain to us the similarity / compatibility of both developments?

Thanks !

Re:How that compare to the non-stick bottle from M (0)

Anonymous Coward | about a year ago | (#42624193)

Saw something about this (or related to at least) recently on BBC:

http://www.dailyflix.net/index.php?/topic/51005-richard-hammond%E2%80%99s-miracles-of-nature-2012/

It's based off of a moth's wings. They wondered how it managed to fly in rain and discovered it had a criss cross ridges at the nanoscale that reduced the area available to water droplets. It's a similar principle to lying on a bed of nails.

If it were a flat surface the droplet would burst and coat the area, but as it doesn't it remains a drop and just rolls off.

That's all from memory and I don't know for sure if it's the same tech but you can watceh the show for yourself ;-)

Re:How that compare to the non-stick bottle from M (0)

Anonymous Coward | about a year ago | (#42626773)

Easy. One is for INSIDE the diaper, the other for OUTSIDE.

Contraceptive? (0)

Anonymous Coward | about a year ago | (#42622343)

Will it repel all bodily fluids?

Re:Contraceptive? (1)

Anonymous Coward | about a year ago | (#42622511)

I have coated your toilet paper with it. You won't be needing any contraceptives for the foreseeable future.

How bout a waterless slip-and-slide? (1)

ClassicASP (1791116) | about a year ago | (#42621855)

Heck, if we all wear slippery clothing, I guess we don't need the slip and slide anymore. We can just run and jump and hit the ground sliding off into the sunset.

Oh! What about shoe soles? To heck with rolerblades. We can just scoot around on the soles of our shoes!

Oh my God I'm having an idea-anurism!!

Re:How bout a waterless slip-and-slide? (1)

Macgrrl (762836) | about a year ago | (#42622209)

What happens if two people wearing this kind of treated fabric try to hug each other - would they bounce off?

I would potentially mean the end of inadvertent wet T-shirt competitions. ;P

Re:How bout a waterless slip-and-slide? (1)

Guignol (159087) | about a year ago | (#42624081)

Oh, no you are right ! I'm afraid this could be the end of wet t-shirt competitions (anaquamamaphiliaphobia)
I have to add this to my fear of heights (vertigo), spiders (arachnophobia), fears (phobiphobia), agoraphobia, claustrophobia, ...
In fact I was just missing this one last fear to have them all, I am now superomniphobic
I guess this is how they made their "research", mental torture of the subjects, this is disgusting

Aren't we just a bit early to the party? (0)

ColdWetDog (752185) | about a year ago | (#42621871)

It's been tried on 'postage stamp' bits of cloth. No mention of stability, durability, flammability or other useful properties.

'Superomniphobic', eh? Sounds like something out of a tacky Disney movie.

Re:Aren't we just a bit early to the party? (-1)

Anonymous Coward | about a year ago | (#42622561)

Yes, please, let's have more consumer product news. But, but it's not perfect. Go fuck yourself.

Re:Aren't we just a bit early to the party? (1)

nospam007 (722110) | about a year ago | (#42623079)

"'Superomniphobic', eh? Sounds like something out of a tacky Disney movie."

I know a few people who are also afraid of everything.

Re:Aren't we just a bit early to the party? (1)

K. S. Kyosuke (729550) | about a year ago | (#42626283)

'Superomniphobic', eh? Sounds like something out of a tacky Disney movie.

I can hear Mary Poppins saying: "Superomniphobic? Almost, but not quite there." :-)

I repel most liquids too (4, Funny)

FeatherBoa (469218) | about a year ago | (#42621899)

I repel most liquids too, although beer and coffee keep slipping though my formidable defences.

Re:I repel most liquids too (2)

VortexCortex (1117377) | about a year ago | (#42623471)

The hardware should be fluid resistant, but your resistance is futile. Don't tell me you haven't learned the Osmosis trick. It saves a lot of drinking time just bathing in it, and since you're not going to put it in your mouth you can even eliminate most trips to the toilet.

Ahhh, Beeffee.

Re:I repel most liquids too (1)

sFurbo (1361249) | about a year ago | (#42623761)

The skin is far to good a barrier for osmosis to work with alcohol and (I think) caffeine. It works with nicotine, which is why nicotine patches are so easy to make, and if you dissolve thing in DMSO first, though.

Re:I repel most liquids too (0)

Anonymous Coward | about a year ago | (#42624381)

BenGay begs to differ

What uses come to mind? (4, Interesting)

Commontwist (2452418) | about a year ago | (#42621903)

I know that lawn mowers, should you leave gas in them for a while, will gain a 'coating' that gums up the fuel needle in the carburetor. Cleaning out the carb is a true pain and costs a lot to get a mechanic to clean/replace. Would this kind of coating over that small and delicate part help ease/eliminate sticking?

Re:What uses come to mind? (3, Insightful)

oodaloop (1229816) | about a year ago | (#42621963)

Motorcycle visors come to mind. And, you know, all those other ones mentioned in TFS. And white suits.

Re:What uses come to mind? (1)

godel_56 (1287256) | about a year ago | (#42629827)

Motorcycle visors come to mind. And, you know, all those other ones mentioned in TFS. And white suits.

As to motorcycle visors, super-hydrophilic may be the way to go. When a droplet hits the surface it's instantly spread in an even layer over the whole area, no beading.

Re:What uses come to mind? (2)

Em Adespoton (792954) | about a year ago | (#42622019)

Any place we currently use a lubricant would find this useful, as coating the parts in this prior to lubrication *should* decrease wear through a decrease in friction. Theoretically, this surface should also wear extremely well provided it's always coated in a lubricant.

Two layers of this with an oil layer in between would be a performance and durability boost for most things that have moving parts.

Now we just need to decrease production cost/increase production and discover how it stands up to *other* forces (such as radiation [heat, light, etc], corrosion, and motion) and what effects it has on its environment (carcinogenic etc).

Re:What uses come to mind? (2)

fluffy99 (870997) | about a year ago | (#42622753)

Repelling fluids does not imply low friction or even durability, for example water beading up on soft silicon rubber. Plus I would think you would want an oil attracting surface for a friction surface.

Re: What uses come to mind? (2)

skitchen8 (1832190) | about a year ago | (#42622281)

Or, and IANAL (I am not a lawnmower-mechanic), you could stop leaving your lawnmower with gas in it for extended periods. Step one: disconnect gas line and drain gas into external vessel. Step two: start lawnmower and let run until it stops on its own accord. Or, even easier if less environmentally friendly, at the end of the lawnmowing season let lawnmower run until it stops of its own accord. No science required.

Re: What uses come to mind? (0)

Anonymous Coward | about a year ago | (#42622617)

Surely it will have more applications. Meaning at some point you're talking about adding pennies to the cost of the mower. There may be other reasons to not let gas in it but if we consider just this reason, then it may actually be more efficient for a producer of superomniawesomeness to make a few more gallons of the stuff than for millions of people to have to do any steps. The past few hundred of years of science have advanced mankind to posses magic in the eyes of our ancestors. There's no such thing as 'no science required' in the modern world.

Re: What uses come to mind? (1)

Commontwist (2452418) | about a year ago | (#42623001)

Oh, I agree. Sadly, more than a few people don't bother to spend more than one minute reading manuals or checking for possible maintenance issues. Add ethanol and higher efficiencies (making engines more sensitive to gas issues) to the mix and it just gets worse. Preferably they should follow your advice but ways to reduce the problem couldn't hurt.

Re:What uses come to mind? (1)

VortexCortex (1117377) | about a year ago | (#42623515)

Protip: To prevent shellacking just dump some fuel stabilizer in it before you put it away for the winter. Good advice for all small engines.

Re:What uses come to mind? (1)

Anonymous Coward | about a year ago | (#42623703)

There are people out there who actually pay a mechanic to fix their goddamn lawnmower engine? Do you really find them to be so complicated?

Re:What uses come to mind? (0)

Anonymous Coward | about a year ago | (#42626099)

There are people out there who actually pay a mechanic to fix their goddamn lawnmower engine? Do you really find them to be so complicated?

I'm sorry your job doesn't pay very well. My jobs pays a lot better than a mechanic's. I pay people to clean my bathrooms too and that's not even slightly complicated. I probably should just pay someone to mow the lawn too, but I like to mow around the wildflowers.

Re:What uses come to mind? (1)

cellocgw (617879) | about a year ago | (#42626631)

One data point: I've got a Toro walk-behind that's over 10 years old now. I've never once emptied the gas tank for the winter, never once done an internal cleaning, and it starts right up like a charm every spring.
Heck, a poor young child saw it smoking a bit once and thought it was due to lack of oil, tossed in a quart or so. The engine started kicking oil out the air intake things were so bad. I dumped the oil, cleaned the air filter, and it ran like a charm.
So my point is that this "gummed up by gas" is highly overrated.

Re:What uses come to mind? (2)

tlhIngan (30335) | about a year ago | (#42626321)

I know that lawn mowers, should you leave gas in them for a while, will gain a 'coating' that gums up the fuel needle in the carburetor. Cleaning out the carb is a true pain and costs a lot to get a mechanic to clean/replace. Would this kind of coating over that small and delicate part help ease/eliminate sticking?

Gasoline is volatile. It will evaporate quite rapidly at room temperature.

However, the gas you get from the pump has a bunch of additives and other stuff added to it - detergents to keep your engine clean (mandated by law, actually), as well as heavier hydrocarbons that aren't as volatile and such. So what happens is when you leave your lawnmower over the season is the light stuff evaporates out, leaving the heavy gunk behind - detergents, additives, and more importantly, varnish and the like which gum up the tiny passages in your carb.

Basicaly before putting it away, at the very least put it away without any gas in the tank - run it all the way empty which should clear the tank and most of the carb. You can optionally choose to drain the leftover out of the carb, too.

Yet another miracle nano-coating (4, Insightful)

Spy Handler (822350) | about a year ago | (#42621911)

Every x months for the past 5 years I hear about some new super-coating that repels dirt, water, oil etc.. Every time I'm like, "cool, when will it come standard on new cars?" I hate having to wash my car every few days (it's parked outside) or it starts looking like crap.

I suppose when I get a flying car, that's when I'll finally see this miracle coating in action.

Re:Yet another miracle nano-coating (1)

Trogre (513942) | about a year ago | (#42622039)

We have about two and a half years to wait until we get both flying cars and dust repellent paper.

Re:Yet another miracle nano-coating (5, Informative)

Anonymous Coward | about a year ago | (#42622235)

Every x months for the past 5 years I hear about some new super-coating that repels dirt, water, oil etc.. Every time I'm like, "cool, when will it come standard on new cars?" I hate having to wash my car every few days (it's parked outside) or it starts looking like crap.

I suppose when I get a flying car, that's when I'll finally see this miracle coating in action.

Posting anonymously because of a personal connection to research some of these materials, but I think it's worth it to quickly clear up a few uncertainties I see in the comments already posted:

1) The reason you don't see this stuff all over is that these materials are expensive and usually not durable. Nanoscale patterns can be created through a variety of approaches, some of which are a bit more complicated but can repair or recreate their surface patterns after abrasion. As you might expect, the materials that can recreate their surface patterns tend to be on the more expensive end of the scale.

2) The past 5 years have seen major progress in *phobic materials. We're getting closer to cost effective, more durability, and even better phobicity, but we're still not there.

3) Superhydrophobic isn't the same as omniphobic. Generally surfaces will either have a high contact angle with water OR with nonpolar liquids. Superhydrophobic means the contact between a droplet of water and the material will be extremely small. Omniphobic means the surface repels both polar and nonpolar liquids.

4) Nanoscale patterning of a surface can also lead to superhydrophilicity, the opposite of superhydrophobicity. The mechanism for this isn't fully understood.

ugly words! (0)

Anonymous Coward | about a year ago | (#42622821)

phobicity? ...philicity?

weren't phobia and ...philia good enough already?

Re:ugly words! (0)

Anonymous Coward | about a year ago | (#42622853)

Gotta sound like an adademitician.

Re:ugly words! (4, Informative)

sco08y (615665) | about a year ago | (#42623187)

phobicity? ...philicity?

weren't phobia and ...philia good enough already?

Foophobia is the fear or hatred of foo. Foophobicity is the degree of fear or hatred of foo.

Re:Yet another miracle nano-coating (0)

Anonymous Coward | about a year ago | (#42622977)

Is this coating useful for use on Formula One racing cars? Especially in wet races this might be advantageous... how about visors and camera lenses, can it be made transparent?

Re:Yet another miracle nano-coating (0)

Anonymous Coward | about a year ago | (#42623323)

The advantageous place to apply it would be the tires, since that's where you lose traction. But would that end up making the tires slippery? I dunno. Would the nanoscale layer rub off extremely quickly as the tires wear? Yeah, probably.

Re:Yet another miracle nano-coating (1)

hackula (2596247) | about a year ago | (#42625373)

Very useful if you discretely spray a bit on your opponent's tires beforehand.

Re:Yet another miracle nano-coating (0)

Barlo_Mung_42 (411228) | about a year ago | (#42622333)

No idea if this is the case or not, but maybe they get killed in the environmental impact stage.

and its tastey (0)

Anonymous Coward | about a year ago | (#42621929)

and comes right back out for reuse

Comparison to Neverwet (1)

Twinbee (767046) | about a year ago | (#42621959)

I wonder how it compares with that 'NeverWet [neverwet.com]' or Rain X stuff. Apparently, the contact angle of the former for a drop of water is around 160-175 degrees (close to perfect 180), but may have problems with durability (and is pervious to solvents, detergents, soap and high pressure water). The latter - Rain X - is already in commercial use, namely for car windscreens, but only has a contact angle of 110 degrees, so isn't superhydrophobic.

I refer to my earlier post which gave these stats:
http://hardware.slashdot.org/comments.pl?sid=2813771&cid=39813937 [slashdot.org]

Re:Comparison to Neverwet (1)

sexconker (1179573) | about a year ago | (#42622023)

I wonder how it compares with that 'NeverWet [neverwet.com]' or Rain X stuff. Apparently, the contact angle of the former for a drop of water is around 160-175 degrees (close to perfect 180), but may have problems with durability (and is pervious to solvents, detergents, soap and high pressure water). The latter - Rain X - is already in commercial use, namely for car windscreens, but only has a contact angle of 110 degrees, so isn't superhydrophobic.

I refer to my earlier post which gave these stats:

http://hardware.slashdot.org/comments.pl?sid=2813771&cid=39813937 [slashdot.org]

I can tell you right now that buying Rain-X wiper blades and their spray-on shit was one of the worst decisions of my life. No better than stock blades and generic glass cleaner.

Re:Comparison to Neverwet (2)

peragrin (659227) | about a year ago | (#42622109)

I don't know about wipers but rain x washer fluid is noticeable.

during heavy rain you can watch the bead and run off your windshield.

Re:Comparison to Neverwet (0)

Anonymous Coward | about a year ago | (#42622357)

I worked at a full service gas station for a year and a half in central Alberta. Bogging is a huge past-time around here (spinning doughnuts and stunting in mud covered rural areas). There were many times where trucks would pull up covered in mud and it was my job to clean the windows. There were a few regulars that had Rain-X treated windshields, wipers, and washer fluid. Guys that work in the oilfield around here make serious money and baby their trucks when they're not bagging the **** out of them. I definitely preferred washing the windows of the guys who used Rain-X, even when covered in mud. Everything would wash right off, no scrubbing or struggle. Not to mention those customers usually tipped; nobody tips gas jockeys anymore.

Re:Comparison to Neverwet (0)

Anonymous Coward | about a year ago | (#42623107)

Rain-X wiper blades and their spray-on shit was one of the worst decisions of my life.

Really

Re:Comparison to Neverwet (1)

Beeftopia (1846720) | about a year ago | (#42623117)

At one point, Rain X was glorious. I could be in the wash of a tractor trailer in a heavy rain and barely need my wipers.

But then, something happened. The Rain X started making my windshield kind of blurry. I'm pretty sure it was the Rain X. I spent a lot of effort scrubbing that windshield afterwards to get the Rain X off. ISTR that after several months, it went back to normal, and I was stuck with regularly replacing wiper blades and keeping the windshield clean. I think it was because it got old and became less than perfectly smooth. This was like ten years ago.

FYI. YMMV.

Re:Comparison to Neverwet (0)

Anonymous Coward | about a year ago | (#42622053)

And (if I recall) the Neverwet is over two years old now, and I still don't see any consumer products that actually use it. (At least not any that I'm aware of.) And the demo was "Shuddap and take my money!" good, so what's the hold-up?

We'll probably have high speed trains crossing much of the lower 48 before there's anything I can go out and buy that makes use of this stuff.

Re:Comparison to Neverwet (1)

the eric conspiracy (20178) | about a year ago | (#42622055)

RainX and this stuff seem to be made of the same starting material, i.e. polydimethylsiloxane.

The difference is the surface morphology of the superhydrophobic material increases the contact angle to 180 degrees.

Re:Comparison to Neverwet (4, Informative)

slew (2918) | about a year ago | (#42622171)

All this superhydrophobic stuff is mostly just silicone.

The main difference is how it's applied and what type of structure it forms. As I understand it RainX is mostly just a simple silicone coating where the idea is to just smooth out the windshield (in the theory that on a completely smooth surface, water is more likely to bead than whet). NeverWet is a silicone nano-particles suspended in a spray/solvent. When the solvent evaporates, it makes a somewhat uniform coating of nano-particles of silicone.

Apparently in this technique, they apply silicone with electrospinning [wikipedia.org] instead of run-of-the-mill spray-n-dry techniques. The main difference is that with electrospinning it is accomplished w/o w/o solvents and the result can be made into a very uniform nano-structure. There's also no solvent to ruin whatever you need to apply it to. Of course figuring out the right technique to create a specific nano-structure that works as you intend it isn't an accomplishment to be sneezed at (not that it would stick anyhow)...

Re:Comparison to Neverwet (3, Informative)

reverseengineer (580922) | about a year ago | (#42622935)

This coating is actually not just silicone, but a blend of silicone and " liquid-resisting nanoscale cubes developed by the Air Force that contain carbon, fluorine, silicon and oxygen," which is apparently supposed to be layman's terms for fluorodecyl polyhedral oligomeric silsequioxane (POSS). Those are cubic networks of silica that have a fluorocarbon chain at each vertex, sort of a three-dimensional Teflon. The very low chemical reactivity plus the nanoscale roughness of the surface causes the lotus effect. [wikipedia.org] The mixture with silicone helps the POSS adhere to materials, though they state in their paper that the POSS preferentially segregates to the surface and is responsible for the coating's properties:

"A wide range of organic chemicals including toluene and chloroform, which readily wet/swell cross-linked PDMS, are also easily repelled. Even when our surfaces are immersed in a liquid bath of PDMS (Mn = 800 Da, lv = 19.8 mN/m), a plastron (air pockets) layer that is indicative of a robust Cassie–Baxter state is formed. The plastron layer was stable and remained unchanged even upon extended exposure to un-cross-linked PDMS. Note that PDMS is a major constituent of the electrospun beads. The observation of a stable plastron layer even when the surface is submerged under PDMS is extremely unique and indicates that the surface does not reconfigure, even when exposed to an enthalpically favorable solvent."

How do I wash my shirt? (0)

Anonymous Coward | about a year ago | (#42621975)

So a shirt that you essentially can't wash? You get charcoal or some other dust and you're out of luck!

Re:How do I wash my shirt? (3)

Em Adespoton (792954) | about a year ago | (#42622033)

So a shirt that you essentially can't wash? You get charcoal or some other dust and you're out of luck!

Charcoal acts as a fluid (yay carbon!) so that shouldn't be an issue. If you only coat the outside, you should still be able to clean the fabric from the inside.

Or, just dry-clean ;)

Windshields? (0)

Anonymous Coward | about a year ago | (#42621981)

No more changing wipers!

Re:Windshields? (1)

Neil Boekend (1854906) | about a year ago | (#42624019)

You'd be better off with a super hydrofile coating. Water droplets distort your vision greatly, a relatively smooth layer of water doesn't distort your vision as much.
Although I do not know if and how strongly hydrofile coatings repel dust and grime.

super stain-resistant clothing (0)

Anonymous Coward | about a year ago | (#42622005)

Read: "super laundry-resistant clothing." Once you do get something on the clothing, water-soluble detergents won't be able to attack it.

Rain-X++? (0)

Anonymous Coward | about a year ago | (#42622065)

Sorry, been programming all day and it's the first thing that came to mind.

Exterior coating for condoms? (1)

johnny cashed (590023) | about a year ago | (#42622075)

For extra smooth slip n' slide? Don't want it on the inside, the thing will slip right off. Or maybe just put the coating on the outside and also just the inside tip.

Re:Exterior coating for condoms? (2)

JazzXP (770338) | about a year ago | (#42622215)

You know this is /. right? ;-)

Re:Exterior coating for condoms? (1, Informative)

Khyber (864651) | about a year ago | (#42622659)

I work in a porno shop and probably get laid way more than the entirety of the /. population combined.

Re:Exterior coating for condoms? (2)

hey! (33014) | about a year ago | (#42623053)

I work in a porno shop and probably get laid way more than the entirety of the /. population combined.

I can well believe both your assertions, but fail to see how they are connected.

Re:Exterior coating for condoms? (0)

Anonymous Coward | about a year ago | (#42625705)

I work in a porno shop and probably get laid way more than the entirety of the /. population combined.

I can well believe both your assertions, but fail to see how they are connected.

Well...SOMEONE has to test the fake vaginas and butts that come in off the trucks. You know, to make sure the shop isn't getting a sub par product.

painting the roses white (0)

Anonymous Coward | about a year ago | (#42622157)

excellent news! now i can wear my blue dress all month long!

How long before (0)

Anonymous Coward | about a year ago | (#42622509)

I can coat myself in this and win every swimming competition by running along the bottom of the pool?

In unrelated news (0)

Anonymous Coward | about a year ago | (#42622519)

A bunch of engineering researchers at the University of Michigan have new matching white suits.

Almost useless in practice, however. (2)

mark-t (151149) | about a year ago | (#42622563)

It's my understanding that this kind of surface erodes relatively quickly, and thus rapidly loses its liquid repelling properties as it is handled or touched by other things that are solid in far too brief a time to be practical for anything but a temporary coating.

Re:Almost useless in practice, however. (2)

Subjective (532342) | about a year ago | (#42624417)

If the object is not often moving and rubbing against other objects (mmmm... rubbing), then the coating need not be temporary.
Dust-proof museum art.
Spider-proof ceilings (seriously, this is all I can think of). I guess it's not very useful that way.

The insides of windows?

Basically any object which is furniture.

Re:Almost useless in practice, however. (1)

mark-t (151149) | about a year ago | (#42627227)

Inside of windows would be impractical for most purposes because it could still easily get touched by people's hands, eventually wearing off.

And this nanotech is not trivial to make, so it's far too expensive to simply have it as a temporary coating.

The underlying concept is a good one... but they need to figure out a way to make it durable enough to cope with real-world handling conditions, or else it's useless for anything that has any possibility of being touched by anything solid.

Friction (1)

BradleyUffner (103496) | about a year ago | (#42622625)

Wouldn't coatings with complex surface geometry like that have issues with friction wearing them flat? I could see that not being a big deal on rigid surfaces that don't really contact anything, but other products, like clothing seem like they would be especially troublesome. Even on things like windshields seem like they would pose a problem with the wiper blades constantly rubbing the surface down.

Re:Friction (0)

Anonymous Coward | about a year ago | (#42623229)

You are not thinking in the 5th dimension Marty! When your windshield is coated with this, you won't need "wipers".

In related news ... (1)

PPH (736903) | about a year ago | (#42622683)

... Wicked Witches around the world look forward to this as a breakthrough technology.

Quoting one spokeswiccan, "I'll get you, my pretty, and your little dog, too!"

But, how you clean anything coated with it? (0)

Anonymous Coward | about a year ago | (#42623059)

Finally, I get the obvious juvenile post first!

Athletic Clothing? (1)

JimsonJ (2818193) | about a year ago | (#42623095)

I hope this can be used to improve athletic clothing that's supposed to whisk away sweat. Nothing I work out in seems to "work".

Super? (0)

Anonymous Coward | about a year ago | (#42623639)

A superominphobic coating when placed horizontally should cause drops of liquids to levitate. Gravity wins however. This coating is very high omniphobic. Super? Not so much.

Re:Super? (1)

Neil Boekend (1854906) | about a year ago | (#42624031)

No, levitation would be caused by an absolutely omniphobic surface. "Super" here is just used as a step up from "very high".

Inside of Catsoup flask (0)

Anonymous Coward | about a year ago | (#42624131)

And the sucker will just come out quietly.

Already there (0)

Anonymous Coward | about a year ago | (#42624139)

There were four companies at CES showing coated cellphones that could be put underwater without harm.
(for a limited time)

Useless if it.... (1)

Lumpy (12016) | about a year ago | (#42625357)

wears off from flexing. Right now you can repel HCL and H2SO4 with NanoTex stain resistant clothing. My last lab coat I needed or the lab was treated with this product already from the manufacturer. Because All acids are mostly water, so repel the water instead. IF you are spilling concentrated acid on yourself, you need to be kicked in the nuts for being a danger in the lab.

TOILETS!!!!! (0)

Anonymous Coward | about a year ago | (#42625513)

do i really need to explain "tire tracks" ???

over the next few years... (1)

WillgasM (1646719) | about a year ago | (#42626195)

we'll have hyperomniphopic, then turbo-omniphopic, then überomniphopic, etc. and all the while we'll still see few, if any, real world applications. These nanoscale surfaces are just too fragile. They'd probably work well for disposable products (although that raises the issue of how well garbage breaks down when it can't even get wet). For some of the most useful applications, the coating would have to be re-applied regularly. That raises the issue of safety of such products. I can only imagine what kind of havoc this stuff would wreak if you were do breath an aerosolized version. Plain liquid versions would be manageable, but even then you'd probably have to wear impervious gloves to make sure it doesn't just soak right in to your bloodstream and head straight for your dura mater. It's fascinating to think of all the possible applications, yet scary as shit to think of all the side effects.

Repel? Really? (1)

jemenake (595948) | about a year ago | (#42627265)

I've never been able to figure out how a coating can "repel" a neutrally-charged molecule (like water, say). Seems like the best you can do is just be as non-polar as possible so that you don't cause any static polar or induced Van Der Waal's attractions, such that the liquid is attracted to *itself* much more than to your coating.
Load More Comments
Slashdot Account

Need an Account?

Forgot your password?

Don't worry, we never post anything without your permission.

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>
Sign up for Slashdot Newsletters
Create a Slashdot Account

Loading...