‘Superhydrophobic’ Knife Chops a Water Droplet Cleanly in Half
Odds are that you’ve never tried to slice through an individual drop of water before — nor would you have any reason to — and given the properties of water and cohesion, it would prove difficult. Unless, of course, if you were wielding this “water-hating” knife developed by engineers at Arizona State University and Youngstown State University.
The hydrophobic knife with an ability to cut cleanly through a droplet in a “gentle fashion” could have application for separating proteins that are mixed with biological fluids and need to be analyzed for biomedical research, New Scientist states.

(Image: 10.1371/journal.pone.0045893.g002)
“Multiprotein separation is vital for the detection of important proteins that provide valuable information on gene expression and can serve as early signals of a disease state,” the research states.
Watch footage of the knife cutting the water in action:
According to the research published in the journal PLoS One, the team put the water on a “superhydrophobic surface.” They kept it in place with wire loops so when cut it wouldn’t result in “satellite droplets,” maintaining it in only two distinct droplets. The knife made from polyethylene, and others from zinc, was treated with silver nitrate and HDFT to make it superhydrophobic.
(H/T: Gizmodo)
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dugsok
Posted on October 4, 2012 at 12:25pmyou can really cut the cheese with this
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Cosmic Duck
Posted on October 4, 2012 at 5:34amJust a matter of time before we see something like this on late night TV for only $19.95. But wait, there’s more!
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Mr.buff1959
Posted on October 4, 2012 at 2:35amHaving the ability to separate water with out high pres, would have many uses.
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christos
Posted on October 3, 2012 at 11:55pmThey can not produce a Human Living Cell.
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OhioRifleman
Posted on October 4, 2012 at 11:47amAnd I do not believe that was mentioned in the article.
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Cesium
Posted on October 4, 2012 at 3:19pmWho is they? the scientists on this project? why would they try to make a human cell.. are these guys cell biologists? I wouldn’t think they are considering this technology.. What if we did create a human cell in the future from parts… Craig Venture already did it with microbes… is this why you had to amend your statement from, “they cannot create a living cell” to they cannot create a human cell?” You creationists must be starting to feel cornered.
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christos
Posted on October 5, 2012 at 2:45pmohiorifleman – cesium – “They” People & or Science Community,copying is not the same as creating from scratch,,,Adam lived 700 years there is nothing that has not been created before this is all old technology,this is all grand but do it with your own $ TEA,TA
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christos
Posted on October 5, 2012 at 2:48pmMan does not need to invent anything,,,everything has already been placed/Created here for Life by +JESUS+GOD+ ,Scientists & Schools are a Filthy Rag.
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chips1
Posted on October 3, 2012 at 9:11pmThey can use this in the school cafeteria. Those kids will be in shape in less than a week.
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Stoic one
Posted on October 3, 2012 at 9:10pminteresting….I ‘d like to see some applications.
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AngryK9
Posted on October 3, 2012 at 9:02pmAnd this means what to me?
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Cesium
Posted on October 4, 2012 at 3:16pmso you are admitting that you wouldn’t be able to conceive of future potential applications that could revolutionize a number of technologies? We could go back to the days of watson and crick or other biochemists you don’t know who solved the structures of macromolecules… then you receive a life saving treatment in the future because of that knowledge but when it was discovered the best you can do is say,, big deal what’s it to me? you probably would like to see funding cut to basic research
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randy
Posted on October 3, 2012 at 8:56pmHey, I can chop water in half also……. Just freeze it :)
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marine249
Posted on October 3, 2012 at 8:53pmI saw this when I cut my finger.
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