Navigation Links
Water may not run uphill, but it practically flies off new surface
Date:2/24/2010

s varying in size but averaging about 600 microns, or millionths of a meter.

The results came as a great surprise.

"Most people that publish in this field always go for these perfect structures, and we are the first to show that the bad ones are the better ones," Sigmund said. "Of course this is a finding in a lab. This is not something you expect from theory."

To be sure, water-repelling surfaces or treatments are already common, spanning shoe wax to caulk to car windshield treatments. Scientists have also reproduced other biologically inspired water repelling surfaces, including ones patterned after lotus leaves.

But Sigmund said the UF surface may be the most or among the most water phobic. Close-up photographs of water droplets on dime-sized plastic squares show that the droplets maintain their spherical shape, whether standing still or moving. Droplets bulge down on most other surfaces, dragging a kind of tail as they move. Sigmund said his surface is the first to shuttle droplets with no tail.

Also, unlike many water-repelling surfaces, the UF one relies entirely on the microscopic shape and patterns of the material rather than its composition.

In other words, physics, not chemistry, is what makes it water repellent. Theoretically, that means the technique could transform even the most water-sopping materials say, sponges into water-shedding ones. It also means that Sigmund's surfaces need never slough off dangerous chemicals. Provided the surface material itself is made safe, making it water repellent introduces no new risks.

Although he hasn't published the research yet, Sigmund said a variation of the surface also repels oil, a first for the industry.

Sigmund said making the water or oil-repelling surfaces involves applying a hole-filled membrane to a polymer, heating the two, and then peeling off the membrane. Made gooey by the heat, the polymer comes out of the holes in the desire
'/>"/>

Contact: Wolfgang Sigmund
sigmund@ufl.edu
352-246-3396
University of Florida
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Freshwater supplies threatened in central Pacific
2. University of Oregon researcher finds that on waters surface, nitric acid is not so tough
3. Innovative civil engineering application promises cleaner waters
4. Safe water: simpler method for analyzing radium in water samples cuts testing time
5. Researchers find new taste in fruit flies: carbonated water
6. Low oxygen in coastal waters impairs fish reproduction
7. Extra gene copies were enough to make early humans mouths water
8. Acid rain has a disproportionate impact on coastal waters
9. HARDY rice: less water, more food
10. New microsensor measures volatile organic compounds in water and air on-site
11. Alternative methods proposed to detect pesticides and antibiotics in water and natural food
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... assessment conducted by the Ocean Health Index rates ... in overall health. In addition, for the first ... 15 ocean regions beyond national jurisdiction (high-seas areas) ... climate, safeguarding biodiversity and providing sustainable food sources. ... index, a partnership led by scientists from UC ...
(Date:9/30/2014)... professor and Howard Hughes Medical Institute investigator, and ... recipients in the 2014 round of grants from ... BRAIN (Brain Research through Advancing Innovative Neurotechnologies) Initiative ... September 30, provides more than $3 million in ... , The BRAIN Initiative, launched last year, is ...
(Date:9/30/2014)... live in almost any aquatic environment on Earth, but ... species are pushed to the limit. The amount of ... critical for how different species cope in the future, ... of Gothenburg, published in the scientific journal Proceedings ... continues apace thanks to increasing levels of greenhouse gases ...
Breaking Biology News(10 mins):Rating the planet's oceans 2Rating the planet's oceans 3Salk scientists receive $3 million for BRAIN Initiative grant 2Shape up quickly -- applies to fish, too! 2
... When ordering seafood, the options are many and so are ... Is your fish healthy? Is it safe? Is it endangered? While ... there,s even an iPhone app a group of researchers ... fish is sustainable, then it is likely to be healthy to ...
... States, one in 10 children suffers from asthma but ... not well known. Cincinnati-based researchers now report new evidence ... may have a direct link to asthma development during ... unguis and Penicillium variabileare typically found growing in water-damaged ...
... heavy rains and droughts that climate change will bring, says ... at a contentious U.S. Senate hearing on climate change, Stanford,s ... yet hopeful analogy. Just as speeding increases the chance ... of heat waves, droughts and heavy precipitation, said Field, a ...
Cached Biology News:Study finds healthy seafood comes from sustainable fish 2Infants exposed to specific molds have higher asthma risk 2Stanford expert brings climate change science to heated Capitol Hill 2
(Date:9/30/2014)... Proove Biosciences , the commercial ... announce a new genetic test built upon research from ... Test will provide physicians with an objective way ... levels are stratified between individuals. With this new test, ... has a genetic predisposition that will affect their pain ...
(Date:9/30/2014)... , Sept. 30, 2014 CORD:USE Cord ... to announce that it has entered into an Equity ... (Tianhe) which has licensed a series of patented technologies for ... for possible clinical applications.  Tianhe is performing Phase I/II ... Spain using Tianhe,s Stem Cell ...
(Date:9/30/2014)... Angeles, CA (PRWEB) September 30, 2014 ... (EWS), the high-speed, chemical-free process to clean up large ... to shareholders, CEO Riggs Eckelberry reported on the launch ... Texas, at a site provided by partner STW ... up to 1000 barrels per day (bpd) and achieved ...
(Date:9/30/2014)... 2014 FemCap Inc., www.femcap.com  an innovator ... of a patent No: US, 8,795,248 B2 dated Aug. ... FDA clearance in the U.S., 510(K) K121857, medical device ... patent is related to its menstrual cup with a ... is releasing FemmyCycle Teen, a third menstrual cup to ...
Breaking Biology Technology:Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 2Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 3CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 2CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 3CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 4OriginOil, Inc. Report to Shareholders: Blue Gold in West Texas 2The FemmyCycle 2
... ( http://www.amdl.com ),AMDL, Inc. (Amex: ADL ), ... China and the US, today announced that the,Company will ... New,York City on Tuesday, October 7, 2008 at 10:30 ... Hyatt New York Hotel in the Morosco Room., ...
... Proceeds to Support R&D Efforts and Clinical ... BETHESDA, Md., Oct. 3 Micromet, Inc. ... company developing,novel, proprietary antibodies for the treatment ... that it has closed its previously,announced $40 ...
... of Aberdeen and Rothamsted Research for releasing natural insect repellents that ... technology is set to revolutionise how people protect buildings from unwanted ... ... (PRWEB) October 3, 2008 -- Atrium Innovation Ltd has developed a ...
Cached Biology Technology:AMDL, Inc. to Present at Maxim Group Growth Conference October 7, 2008 2AMDL, Inc. to Present at Maxim Group Growth Conference October 7, 2008 3Micromet Closes $40 Million Private Equity Placement 2Micromet Closes $40 Million Private Equity Placement 3Micromet Closes $40 Million Private Equity Placement 4New Innovation Set to Revolutionise Spray Technology - Used to Protect Against the Scottish Biting Midge & Help Fight MRSA in the NHS 2New Innovation Set to Revolutionise Spray Technology - Used to Protect Against the Scottish Biting Midge & Help Fight MRSA in the NHS 3New Innovation Set to Revolutionise Spray Technology - Used to Protect Against the Scottish Biting Midge & Help Fight MRSA in the NHS 4
Mouse Anti-Human Kallikrein 2 (Hk2)...
Rabbit polyclonal to Dishevelled 2 ( Abpromise for all tested applications). entrezGeneID: 1856 SwissProtID: O14641...
Presenilin 2 Immunogen: Synthetic peptide corresponding to residues 31-47 of human Presenilin 2. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Monoclonal Anti-Gα o purified immunoglobulin buffered aqueous solution Solution in phosphate buffered saline pH 7.4, containing 0.08% sodium azide. partially purified bovine brain Gα O ...
Biology Products: