I couldn't help but think this may greatly improve boat/ship hull efficiency (reduction of friction) as it moved through the water. I wonder how durable it would be in a salt water environment? Ships/boats use a lot of fuel!
It would be extremely costly, especially since it would lose its hydrophobic properties very quickly due to wear and tear. However, I think they do already use some chemically hydrophobic coatings for ships or at least they're considering it because experiments show that it does reduce drag.
I played with some nanopatterned materials with similar properties at university but they were very sensitive. The durability of the material in the video would interest me too.
Yes they would. This technique is more effective on materials with higher resistances to scratching. Of course this raises production costs, but you'd get a more durable surface that retains it's hydrophobia.
Grand Duke Seems like it would be good for surfaces that don't usually have exposure to open environments that could cause the scratching but might fall victim to condensation and other similar issues such as internal parts that can't be completely sealed off.
The explanation is right here: "In this study, we use an amplified Ti:sapphire laser system that generates 65-fs pulses with a central wavelength of 800 nm and at a maximum pulse repetition rate of 1 kHZ. The laser beam is focused onto the sample surface by a lens onto a sample mounted on a computerized XY-translation stage. The samples in our study are platinum, titanium, and brass. Each sample is textured with an array of parallel microgrooves covered by extensive nanostructures. The platinum sample is processed at laser fluence of 9.8 J/cm 2. The titanium sample is processed at laser fluence of 7.6 J/cm 2. Brass is processed at laser fluence of 3.9 J/cm 2. The orientation of microgrooves is controlled by the scan direction. A scanning electron microscope (SEM) and a 3D laser scanning microscope are used to examine the surface structures. Superhydrophobic properties are studied by measuring both water contact angle and the surface tilt angle for water sliding. The self-cleaning properties are studied with real-life dust particles collected from a vacuum cleaner. For cleaning, we use rolling and falling water drops. The rolling drops with nearly zero kinetic energy are produced by pipetting water drops near the sample surface, while the falling drops are produced by pipetting drops at a height of 3-8 cm above the sample surface. The diameter of the pipetted water drops is in the range of 2-5 mm. The self-cleaning action is recorded with a video camera. To characterize the optical properties, we measure the total hemispherical optical reflection of the samples using a Perkin-Elmer Lambda 900 spectrophotometer and Bruker IFS 66/S FTIR spectrometer, each equipped with an integrating sphere. The two spectrometers allow us to measure the spectral reflectance in the wavelength range of 0.25-2.5 μm and 2.5-16 μm, respectively." It was in a link in the description. ^^
Try to imagine all life as you know it stopping instantaneously and every molecule in your body exploding at the speed of light.... total protonic reversal.
Kamike Serpantail Yes, exactly. Think of that toy Aqua-Sand that was advertised over the last two decades and how it would stay dry after being pulled out of water.
depends on the shape and density.. if narrow and denser than water, it would slide right through to the bottom with no resistance.. if less dense, it would sit on top of the water tension and be extremely buoyant, if flat and less dense, the effect is pronounced. if ball-shaped and quite light, then yeah, it would likely bounce
Metal 2.0 | Chunlei Guo | TEDxIndianapolis ruclips.net/video/nQxkU0nkMa0/видео.htmlm18s etched superblack surface ruclips.net/video/nQxkU0nkMa0/видео.htmlm9s water uphill
5 лет назад+6
This could be used to create an air based thermopumps that would work well below 0 as water vapor could not sublimate to the cooling surfaces. You could get COP 4-5 by having a much larger difference between the cooling surfaces and the ambient air without concern for ice buildup. The engineering is daunting but possible. The rewards in energy efficiency would be well worth it particularly in cold climates but the increased efficiency for cooling would also be beneficial.
Pretty awesome, yeah. Though, I question it's durability. I'm guessing the water's surface tension keeps it together, because the pattern etched into the metal prevents the water from seeping in. I've seen the phrase "micro and nano patterns" thrown about, which makes me suspect that it would be incredibly easy to scratch this attribute straight off the metal unless it's as hard as diamond. It's the same reason your car wax loses it's effectiveness to do the same thing, but the difference is that it's relatively easy to wax your car, while re-lasering a toilet in Mozambique is probably not going to be an option. Slapping a coat of paint on may not be as effective, but it's cheap, fast, and can be done over and over and over again. Still a great technology and I certainly hope they roll out it's use in hospitals (they already have a plastic that does the same thing), which would not only be healthier for us all but also avoid that whole "breeding super-bacteria" problem from an overuse of cleaning and antibiotic chemicals, but I sometimes think engineers and scientists are not as worldly and practical when it comes to applying their technology, because it's just not feasible to build entire airplanes out of nano-etched metal that will not only be blinding bare aluminum, but will quickly lose it's effectiveness after flying through dust storms, hail, etc. Kinda like that whole "build roads out of solar panels coated with glass" idea; sounds awesome, but mundane problems like "glass gets scratched to shit when you drive cars on it" and "asphalt is fucking cheap" just take priority. If I'm totally wrong on this, please give me a heads up on why.
Awesome stuff, but it's such a teaser to just keep seeing the results and never see the lasers! Like how are you doing this process? Lets see that in gruesome detail!
Phong Vu He didn't say it couldn't be used in toilets, he said it's expensive, and so it's not used in toilets. I'm sure they'd make you one if you want to pay for it, but I don't have the money for a million dollar toilet. This tech would need to be massively upscaled to make it viable for mass production.
I wonder how it would affect the buoyant forces on ships. Or the integrity of the material. Cause a material's strength depends on its crystalline structure. Pretty exciting to see how it will be used. Possibilities are endless at this point.
It shouldnt affect integrity, someone commented with the specifics of how the process works, theyre using nano scale laser etching to make patterns on the surface of metals, I dont think that would affect the crystal structure of the metal very much, maybe the thickness of metal foil if at all
Imagine cars with this and roofs of houses and buildings, boats, umbrellas, cooking utensils and pots/pans, maybe even driveways/streets! The possibilities are endless!
Possible uses I've come up with: Boat hulls to lessen drag. Water pipes (internally and externally) to extend their life by lowering corrosion. Roofing tiles that last for a very long time with extremely low maintenance. Would also be useful in areas that get a lot of snowfall to keep snow from sticking to roofing tiles. Tableware that's very easy to keep clean with minimal water needed. I have to wonder what effect this treatment would have on materials that are implanted in the human body. Could this help cut down on infection and issues associated with such devices?
I used this in my toilet but the pee bounced back, luckily was wearing super hydrophobic sprayed clothing but it made an eternal feedback loop :( now i'm playing endless peing pong, pls help
wait... at 2:07 the water bounces and then bounces off the area not treated with laser surface mattrice. what game you playing ? it did stick to the side edge of the plate but it was already falling... care to explain ?
Resurface all watercraft with this material to beneficially change their friction coefficient. A.Water brakes. B.High speed underwater transit. C.Electronic devices that hold their position in stagnant water without traditional motivation. D.Gases/Fluids flow into containers without pumping. E. Separate chemicals at different temperatures from a cracking device. (Like pouring all your garbage into a thermal pit and capturing all the components that burn off while it's hot and easily transferable into separate condensation and recycling.)
Could the production of this material be scaled up and be produced at a reasonable price? I would be nice to get rid of a few of the perfluorinated compounds, like teflon.
its not a material its a surface treatment using lasers. which can be cheap depending on power needed to etch specific materials and the size of the cnc mechanism needed to move it around. but i've seen the water absorbing effect on sand blasted parts before. what they have is probably better at it.
Anyone have the measurements or a diagram of the engravings on the material the laser made? I find this really interesting and would love to try and replicate it for some real world applications
Assuming the laser cut surface can be applied to hard enough materials, this would be awesome for roofing. Or basically any exterior surface. Exciting stuff.
yes it is nice that your hydrophobic material can repel water and compared to teflon but like teflon can the shown material be used in high degrees of temperature?
Doubtful. They have to create a patterned surface on the material. So if they applied this same process to glass, you probably wouldn't be able to see through it.
dan428 on a nano scale our eyes won't resolve the difference and it will still appear to be see through. There have been products that can do similar effects (RainX) which is clear, however it still requires recoating
I could see this more for electronics protection backup. So it can wick dry the moisture out of the air with one surface while repelling it from the things that really can't afford any water.
most naturally occurring hydrohopic/hydrophillic materials already depend on their surface structure so if we alter that structure we would probably not improve the effect.
The research was originally focused on the hydrophillic properties of the nanostructure treatment. Did the superhydrophobic properties appear by accident or were they expected (i.e. treatment is initially very hydrophillic then becomes super hydrophobic after exposure to CO2 and resultant carbon accumulation)?
about the whole toile integration, because the surface is rougher doesn't that mean the the more dryer pieces of fieces will stick more to it? And does this work with smaller molecules like oils?
Four and half years later, is this technology in use anywhere? If this can be applied to glass or polycarbonate and leave the ability to see through it intact, that would be tremendously useful in applications ranging from glasses to windshields.
The leading edge of wings on commercial airliners would be an interesting test for the hydrophobic material. Boots or exhaust gasses or combination of both are used at present in combination to chemical de-ice agents on the ground.
Does this also repel other liquids like oils? How could you wash the surface? Over time will the nano and micro structures wear down from friction and become less effective?
what happens when you drop this sheet inside a container filled with water along the hydrophobic side very slowly ....... does the sheet bounce off or does it sink ???
I'm thinking if You make a ring of a pipe full of water and on the inside You got one half of each material and tilt it. Would it make a perpetual motion?
So what happens if you have one superhydrophillic surface soaked with water, and contacting a superhydrophobic surface. Do you get a very low friction bearing?
please upload video of more tests not just single water droplets falling. Pour water in a stream, spray a mist on the surface, fill a dish with water that surrounds the metal. we want more of this awesome development!
This is a fabulous video! What kind of copyright is claimed? Am I able to use a couple shots for a video I am making on fluid dynamics? Attribution of course!
Make a submersible out of it for deep sea exploration. Use the water repelling properties to create a “shield” from the intense water pressure of the deep ocean.
could this etching be applied to the interior of an intake port runner in the machined aluminum cylinder head of an internal combustion engine? I would think that this surface would reduce any condensation of the fuel that could occur immediately after the fuel is released by the injector wherein it would be easily sucked into the combustion chamber along with the corresponding charge of air, reducing buildup of impurities throughout the intake port and reducing the amount of fuel necessary to establish a proper stoichiometric ratio for combustion... cleaner burning engine that is using less fuel.
But how wear resistant are these nano structures? Is it robust enough to not get "polished away" by for example touching. I mean especially acids in the skin fluids could etch it away just like the labels on keyboards I imagine
Ладно, хорошо, замечательно, чудесно. А почему не сняли как эту пластинку обрызгивают из пульверизатора? Насколько прочна полученная структура? Насколько стойка к истиранию?
Wish you a good day ... Please let us know how to ingrave graphen deposeted sheet in nano spaced lines apart from each using laser engraver or any suggested tools or instruments
potentially stupid question.. what if you made a surf board out of it? would it become too unstable to ride? would it make it sink? how does friction with water apply to it (ie, take something dry n set it against it at an angle VS wetting that same object at the same angle)
Femtosecond laser pulses are used to create the nano and microstructures. You can read the full paper here: scitation.aip.org/content/aip/journal/jap/117/3/10.1063/1.4905616
Would a boat made out of that material sink or not? and how strong is the "psuh" from the material against the water? a few drops? a liter? etc... somebody any idea?
What happens if it is submerged in water? Does the water repel it back to the surface with greater force? Or something weird happens like easier "sliding" trough water (Good for subs or underwater research investigations of underwater world exlporation)?
This is perfect for making a prank soup spoon.
Genius lol.. forget all the other uses this has.. yours is the best haha
Rjgtetitet
That’s the most evil thing I can imagine.
i doubt that will work because you dont pour the soup onto the spoon so the soup wont bounce, and the spoon is bowl-shaped so the soup wont escape
@@rkko_ still not enough drag so any movement will spill the liquid
I couldn't help but think this may greatly improve boat/ship hull efficiency (reduction of friction) as it moved through the water. I wonder how durable it would be in a salt water environment? Ships/boats use a lot of fuel!
my mind tells me because it's hydrophobic it means that ship will sink instantly lol
It would be extremely costly, especially since it would lose its hydrophobic properties very quickly due to wear and tear. However, I think they do already use some chemically hydrophobic coatings for ships or at least they're considering it because experiments show that it does reduce drag.
I played with some nanopatterned materials with similar properties at university but they were very sensitive. The durability of the material in the video would interest me too.
@@GewelReal That's... not how buoyancy works
NOPE the micro structures will increase the rate of fouling from sea life!
Wouldn't minor scratches on the surface make the effect fail, since it is etched directly onto the surface itself?
Yes they would. This technique is more effective on materials with higher resistances to scratching. Of course this raises production costs, but you'd get a more durable surface that retains it's hydrophobia.
Grand Duke Seems like it would be good for surfaces that don't usually have exposure to open environments that could cause the scratching but might fall victim to condensation and other similar issues such as internal parts that can't be completely sealed off.
Or just apply it to parts which are not mechanically requested.
My gut tells me even a little bit of dust could seriously reduce the efficacy. That's true of chemical coatings too though.
That's why we don't see anything 7 years later :) it's cool research tho
The explanation is right here:
"In this study, we use an amplified Ti:sapphire laser system that generates 65-fs pulses with a central wavelength of 800 nm and at a maximum pulse repetition rate of 1 kHZ. The laser beam is focused onto the sample surface by a lens onto a sample mounted on a computerized XY-translation stage. The samples in our study are platinum, titanium, and brass. Each sample is textured with an array of parallel microgrooves covered by extensive nanostructures. The platinum sample is processed at laser fluence of 9.8 J/cm 2. The titanium sample is processed at laser fluence of 7.6 J/cm 2. Brass is processed at laser fluence of 3.9 J/cm 2. The orientation of microgrooves is controlled by the scan direction. A scanning electron microscope (SEM) and a 3D laser scanning microscope are used to examine the surface structures. Superhydrophobic properties are studied by measuring both water contact angle and the surface tilt angle for water sliding. The self-cleaning properties are studied with real-life dust particles collected from a vacuum cleaner. For cleaning, we use rolling and falling water drops. The rolling drops with nearly zero kinetic energy are produced by pipetting water drops near the sample surface, while the falling drops are produced by pipetting drops at a height of 3-8 cm above the sample surface. The diameter of the pipetted water drops is in the range of 2-5 mm. The self-cleaning action is recorded with a video camera. To characterize the optical properties, we measure the total hemispherical optical reflection of the samples using a Perkin-Elmer Lambda 900 spectrophotometer and Bruker IFS 66/S FTIR spectrometer, each equipped with an integrating sphere. The two spectrometers allow us to measure the spectral reflectance in the wavelength range of 0.25-2.5 μm and 2.5-16 μm, respectively."
It was in a link in the description. ^^
Can you make a CorningWare ceramic surface to be hydrophobic? If you can, you can start a revolution in our cookwares.
@@zooplanton if you can laser etch the surface without chipping the ceramic you can.
@@zooplanton titanium pans
i wonder what happens if you dropped this metal into a water surface..would it just bounce right off the water??
It'd fall into the water.
Then when you pull it out, it'd be dry.
Try to imagine all life as you know it stopping instantaneously and every molecule in your body exploding at the speed of light.... total protonic reversal.
John O'brien hah, if only it was extreme as crossing the streams
Kamike Serpantail
Yes, exactly. Think of that toy Aqua-Sand that was advertised over the last two decades and how it would stay dry after being pulled out of water.
depends on the shape and density.. if narrow and denser than water, it would slide right through to the bottom with no resistance.. if less dense, it would sit on top of the water tension and be extremely buoyant, if flat and less dense, the effect is pronounced. if ball-shaped and quite light, then yeah, it would likely bounce
I would love to see this application incorporated into the aircraft industry. Keep up the interesting and amazing studies.
Its been 6 yrs. Where is this now?
there is a recent TED talk by Prof. Guo on this superhydrophobic surface. the title of the talk is "Metal 2.0" and it is on youtube.
Thanks!
Metal 2.0 | Chunlei Guo | TEDxIndianapolis ruclips.net/video/nQxkU0nkMa0/видео.htmlm18s etched superblack surface
ruclips.net/video/nQxkU0nkMa0/видео.htmlm9s water uphill
This could be used to create an air based thermopumps that would work well below 0 as water vapor could not sublimate to the cooling surfaces. You could get COP 4-5 by having a much larger difference between the cooling surfaces and the ambient air without concern for ice buildup. The engineering is daunting but possible. The rewards in energy efficiency would be well worth it particularly in cold climates but the increased efficiency for cooling would also be beneficial.
Thats a slick idea! Any indications of folks trying to build such yet?
As long dust particles do not accumulate on it and how to clean it. Seems a great invention.
Pretty awesome, yeah. Though, I question it's durability. I'm guessing the water's surface tension keeps it together, because the pattern etched into the metal prevents the water from seeping in. I've seen the phrase "micro and nano patterns" thrown about, which makes me suspect that it would be incredibly easy to scratch this attribute straight off the metal unless it's as hard as diamond. It's the same reason your car wax loses it's effectiveness to do the same thing, but the difference is that it's relatively easy to wax your car, while re-lasering a toilet in Mozambique is probably not going to be an option. Slapping a coat of paint on may not be as effective, but it's cheap, fast, and can be done over and over and over again.
Still a great technology and I certainly hope they roll out it's use in hospitals (they already have a plastic that does the same thing), which would not only be healthier for us all but also avoid that whole "breeding super-bacteria" problem from an overuse of cleaning and antibiotic chemicals, but I sometimes think engineers and scientists are not as worldly and practical when it comes to applying their technology, because it's just not feasible to build entire airplanes out of nano-etched metal that will not only be blinding bare aluminum, but will quickly lose it's effectiveness after flying through dust storms, hail, etc. Kinda like that whole "build roads out of solar panels coated with glass" idea; sounds awesome, but mundane problems like "glass gets scratched to shit when you drive cars on it" and "asphalt is fucking cheap" just take priority.
If I'm totally wrong on this, please give me a heads up on why.
this is awesome, only hope it can be scaled up and applied soon and cost effectively.
Great idea of reducing the materials and technique required for production a superhydrophobic coating
Awesome stuff, but it's such a teaser to just keep seeing the results and never see the lasers! Like how are you doing this process? Lets see that in gruesome detail!
FINALLY someone can create pipe where poops won't get stuck in DA HOLE!!
Dhruvik Nanavati Like he said in the video, it can be used in toilets and flushing requires very little or no water, but still keep it super clean.
self cleaning toilet bowls!
Phong Vu He didn't say it couldn't be used in toilets, he said it's expensive, and so it's not used in toilets. I'm sure they'd make you one if you want to pay for it, but I don't have the money for a million dollar toilet. This tech would need to be massively upscaled to make it viable for mass production.
hanyougod
They said the same about televisions, cars and the Internet. Not so expensive anymore, are they?
Wouldn't that be extremely expensive?
can the process be used on injection moulds to transfer the surface pattern to the object being moulded
I wonder how it would affect the buoyant forces on ships. Or the integrity of the material. Cause a material's strength depends on its crystalline structure. Pretty exciting to see how it will be used. Possibilities are endless at this point.
It shouldnt affect integrity, someone commented with the specifics of how the process works, theyre using nano scale laser etching to make patterns on the surface of metals, I dont think that would affect the crystal structure of the metal very much, maybe the thickness of metal foil if at all
Is there an update? Also, can the etching be done on plastic sheets? What about on glass?
Imagine cars with this and roofs of houses and buildings, boats, umbrellas, cooking utensils and pots/pans, maybe even driveways/streets! The possibilities are endless!
Could this be useful for some of the vehicle parts and frames?
So if the surface gets altered by scratched, or other impact damage, can it still repell?
Possible uses I've come up with: Boat hulls to lessen drag. Water pipes (internally and externally) to extend their life by lowering corrosion. Roofing tiles that last for a very long time with extremely low maintenance. Would also be useful in areas that get a lot of snowfall to keep snow from sticking to roofing tiles. Tableware that's very easy to keep clean with minimal water needed.
I have to wonder what effect this treatment would have on materials that are implanted in the human body. Could this help cut down on infection and issues associated with such devices?
I used this in my toilet but the pee bounced back, luckily was wearing super hydrophobic sprayed clothing but it made an eternal feedback loop :(
now i'm playing endless peing pong, pls help
you still in the toilet ?
@@Kerjadiluar I think his phone's battery is dead
Work on your aim 👍🏻
Underrated
@@pranav_chandar_jazz too underrated
wait... at 2:07 the water bounces and then bounces off the area not treated with laser surface mattrice. what game you playing ? it did stick to the side edge of the plate but it was already falling... care to explain ?
right at the beginning of the video i thought of cars, toilets, frying pans, pipe systems fridges and a few silly ideas
i have been waiting for something like this in ages. this will solve that one problem most of us have.
Resurface all watercraft with this material to beneficially change their friction coefficient.
A.Water brakes.
B.High speed underwater transit.
C.Electronic devices that hold their position in stagnant water without traditional motivation.
D.Gases/Fluids flow into containers without pumping.
E. Separate chemicals at different temperatures from a cracking device.
(Like pouring all your garbage into a thermal pit and capturing all the components that burn off while it's hot and easily transferable into separate condensation and recycling.)
Could the production of this material be scaled up and be produced at a reasonable price? I would be nice to get rid of a few of the perfluorinated compounds, like teflon.
its not a material its a surface treatment using lasers. which can be cheap depending on power needed to etch specific materials and the size of the cnc mechanism needed to move it around.
but i've seen the water absorbing effect on sand blasted parts before. what they have is probably better at it.
@@darkshadowsx5949 Oh, thanks for clarifying. :)
Anyone have the measurements or a diagram of the engravings on the material the laser made? I find this really interesting and would love to try and replicate it for some real world applications
they mentioned that they are at the micro and nano scale, which might mean micro/nano meters? you cant really replicate that without a lab
Assuming the laser cut surface can be applied to hard enough materials, this would be awesome for roofing. Or basically any exterior surface. Exciting stuff.
yes it is nice that your hydrophobic material can repel water and compared to teflon but like teflon can the shown material be used in high degrees of temperature?
fascinating. I can see many cryogenic uses for this
As if a million windscreen wiper salesmen suddenly cried out in terror. =P
Doubtful. They have to create a patterned surface on the material. So if they applied this same process to glass, you probably wouldn't be able to see through it.
yeah wouldn't work on optics, the glass surface would appear sandblasted
dan428 on a nano scale our eyes won't resolve the difference and it will still appear to be see through. There have been products that can do similar effects (RainX) which is clear, however it still requires recoating
koruki rainx is chemical treatment..
dan428 yes it is else a normal consumer wouldn't be able to apply it, but I know what you mean cause the Neverwet leaves a haze
Amazing. I wish to use this achievement in the mirrors of vehicles
By then we won't have side mirrors on vehicles. Because we would be using self-driving vehicles with cameras for side mirrors instead.
Don't think mirrors will work as well with the grooves. There are already hydrophobic films you can buy to stick on your mirrors.
i bet they never figured out how to make it effective and strong/scalable
I could see this more for electronics protection backup. So it can wick dry the moisture out of the air with one surface while repelling it from the things that really can't afford any water.
So 7 years later, I wonder if it found any real world (commercial) applications.
What happens if we etch a naturally hydrophilic or hydrophobic material with this laser? Will it improve/nullify the material's properties?
most naturally occurring hydrohopic/hydrophillic materials already depend on their surface structure so if we alter that structure we would probably not improve the effect.
Very impressive. Maybe also Important for ionic transport in accumulators.
I spent years at my university researching hydrophobic coatings, so seeing this doing it so much better is a little sad.
Please don't be sad. All knowledge builds upon the work of those before us!
Also, the applications where each are viable will probably be drastically different.
What is the underlying principle? Is it a long process? How big is the device compared to the surface?
The research was originally focused on the hydrophillic properties of the nanostructure treatment. Did the superhydrophobic properties appear by accident or were they expected (i.e. treatment is initially very hydrophillic then becomes super hydrophobic after exposure to CO2 and resultant carbon accumulation)?
No, they were separate projects. The hydrophobic properties were patterned after the Lotus leaf, intentionally.
about the whole toile integration, because the surface is rougher doesn't that mean the the more dryer pieces of fieces will stick more to it?
And does this work with smaller molecules like oils?
Four and half years later, is this technology in use anywhere? If this can be applied to glass or polycarbonate and leave the ability to see through it intact, that would be tremendously useful in applications ranging from glasses to windshields.
What is preventing surface degradation? don't the nanostructures wear and break due to forces either through errosion or physical contact?
This should be used on aircraft to prevent icing. The market is gigantic.
The leading edge of wings on commercial airliners would be an interesting test for the hydrophobic material. Boots or exhaust gasses or combination of both are used at present in combination to chemical de-ice agents on the ground.
How resistant is this surface to scratches?
Will a boat go faster with a hydrophilic or w/ a hydrophobic surface ?
Does this also repel other liquids like oils?
How could you wash the surface?
Over time will the nano and micro structures wear down from friction and become less effective?
Can you laser a automotive windshield? Have you tested if barnacles would like to grow on it?
If you made a boat with this surface, would it be like a very low drag/friction and move super smooth in the water?
Are there microscope photos of the pattern? What does it look like and what makes it repel water?
Can this sort of laser etching technique be translated on to other materials like plastic or glass/ceramics?
The article that took me here said they are working on trying that.
I'm looking forward to seeing this in cooking utensils!
come on, come on, come on, we need products using this YESTERDAY in the market. I can barely wait.
Does it in come in Duct Tape yet?
what happens when you drop this sheet inside a container filled with water along the hydrophobic side very slowly ....... does the sheet bounce off or does it sink ???
Please tell me this has already been commercialised and competes with Teflon/PFOAs, etc.
I want to know do you have the process available commercially in India?
Can this technology we use for electrostatic painting, so the paint doesn't stick on the material
Could this be installed in car windshields?
I'm thinking if You make a ring of a pipe full of water and on the inside You got one half of each material and tilt it. Would it make a perpetual motion?
How does this work with oils ? Could u treat a journal bearing with that and have super efficact bearings
So what happens if you have one superhydrophillic surface soaked with water, and contacting a superhydrophobic surface. Do you get a very low friction bearing?
Is this how iPhone screen and cover are treated ? And does it have self cleaning property ?
please upload video of more tests not just single water droplets falling. Pour water in a stream, spray a mist on the surface, fill a dish with water that surrounds the metal. we want more of this awesome development!
This is a fabulous video! What kind of copyright is claimed? Am I able to use a couple shots for a video I am making on fluid dynamics? Attribution of course!
Make a submersible out of it for deep sea exploration. Use the water repelling properties to create a “shield” from the intense water pressure of the deep ocean.
Wat if you make this surface into a smal pipe? Does it make water flow up?
Sewer pvc pipes came first to my mind, no more clogged clean out sewer lines.
does this technology work even with oils??
IT would need to produce a lipophobic (fats) or even an oleophobic (oils) surface to repel more than just water.
Can you apply this technology to textile materials ?
could this etching be applied to the interior of an intake port runner in the machined aluminum cylinder head of an internal combustion engine? I would think that this surface would reduce any condensation of the fuel that could occur immediately after the fuel is released by the injector wherein it would be easily sucked into the combustion chamber along with the corresponding charge of air, reducing buildup of impurities throughout the intake port and reducing the amount of fuel necessary to establish a proper stoichiometric ratio for combustion... cleaner burning engine that is using less fuel.
Is this technic, super-hydrophobic usable on bigger surfaces of steelplates? Gerard Gommers
But how wear resistant are these nano structures? Is it robust enough to not get "polished away" by for example touching. I mean especially acids in the skin fluids could etch it away just like the labels on keyboards I imagine
Whats the temperature rating?
A disc shape submarine ship of this metal would go very fast underwater with no resistance or no ?
What happens when the crevices collect dirt and dust particles? And is it oleophobic as well?
someone should use this technique to make a grinder which never gunks up, imagine how smooth this grinder would be
Ладно, хорошо, замечательно, чудесно. А почему не сняли как эту пластинку обрызгивают из пульверизатора? Насколько прочна полученная структура? Насколько стойка к истиранию?
Wish you a good day ...
Please let us know how to ingrave graphen deposeted sheet in nano spaced lines apart from each using laser engraver or any suggested tools or instruments
this is the coolest thing i have ever saw
Sir, which material you take to do hydrophobic surface
potentially stupid question.. what if you made a surf board out of it? would it become too unstable to ride? would it make it sink? how does friction with water apply to it (ie, take something dry n set it against it at an angle VS wetting that same object at the same angle)
What if ship hull was made of this, would it sail smother and require less propulsion?
the droplets are kind of cute in a way...
What type of laser processing have you employed here?
Femtosecond laser pulses are used to create the nano and microstructures. You can read the full paper here: scitation.aip.org/content/aip/journal/jap/117/3/10.1063/1.4905616
Great job dude!!
Can you make lenses with this tech? This would be perfect for VR headsets. My Oculus headset keep fogging up and its super annoying.
Can you please explain, how does the hydrophilic surface work?
Would a boat made out of that material sink or not? and how strong is the "psuh" from the material against the water? a few drops? a liter? etc... somebody any idea?
This is super interesting but I will save my enthusiasm until after the stress tests of etched samples.
Cool stuff - great work! Thanks for sharing.
Could you use this to make a pump?
Is this posible with glass?
Fluoride is very toxic so teflon is bad bad in pan. What type laser used?
Can I get bathroom tiles made of this stuff? And can you make grouting out of it?
Aviation: Anti-Icing protection for small aircraft. What we've been needing for decades. Apply a strip to the leading edges of the wings. Make it so!
Damn, adapt this to glass and you'd have the safest windshields ever. Great stuff.
What happens if it is submerged in water? Does the water repel it back to the surface with greater force? Or something weird happens like easier "sliding" trough water (Good for subs or underwater research investigations of underwater world exlporation)?