Navigation Links
Nano-cone textures generate extremely 'robust' water-repellent surfaces
Date:10/21/2013

>"While we fabricated several different nanotextures that all significantly increased the water repellency, certain shapes performed differently than others," said Brookhaven physicist and co-author Atikur Rahman. The enhanced water-repellency was consistent with earlier studies, including a previous one by Checco and collaborators that showed that air bubbles trapped in the textured surfaces force the water to ball up into drops. However, in the current study, the team further showed that cone-shaped nanostructures are significantly better than cylindrical pillars at forcing water droplets to roll off the surface, thus keeping surfaces dry.

"In the case of the cylindrical pillars, as the contact line of the droplet recedes on the textured surface, it can get pinned to the nanotexture, leaving behind a microscopic liquid layer on the pillars' flat tops instead of a perfectly dry substrate," Checco said. "The cone-shaped structures have smaller, pointed tops, likely preventing this effect."

The other important finding was that the water-repelling ability of cone-shaped nanotexturing held up even when water droplets were sprayed onto the surface with a pressurizing syringe. Such pressure could potentially force water into the nanosized pockmarks between the conical or cylindrical pillars, displacing the air bubbles and destroying the water-repelling effect.

The scientists monitored the splashing droplets using a high-speed camera capable of capturing 30,000 frames per second. For the cone-textured surface, "The sprayed droplets splash and eject satellite droplets that spread radially outward while the centermost portion of the original drop flattens out, then recoils, and bounces off the surface," Checco said. "We do not observe any pinned drops at the impact point after the drop has bounced back, indicating that the surface remains water-repellent during the impact
'/>"/>

Contact: Karen McNulty Walsh
kmcnulty@bnl.gov
631-344-8350
DOE/Brookhaven National Laboratory
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. Study Published in Nature Biotechnology Demonstrates Ability of Modernas Novel Therapeutic Paradigm to Repair and Regenerate Damaged Heart Tissue
2. Dr. Rongxiang Xu, Owner of Patented Technology to Regenerate Damaged Organs, Announces Lawsuit Against 2012 Nobel Laureate Dr. Shinya Yamanaka
3. Stem cells produce compact, regenerated bone in mandible transplants
4. Inovio Pharmaceuticals Cytomegalovirus (CMV) Synthetic Vaccine Constructs Generate Strong and Broad T-Cell Responses in Preclinical Study
5. Home sweet lab: Computerized house to generate as much energy as it uses
6. Chronic Hepatic Diseases Generate High Costs to Europe
7. How the alphabet of data processing is growing: Research team generates flying qubits
8. Global Cancer Diagnostics Market to Witness Robust Growth, According to VPG Report Published at MarketPublishers.com
9. Technical Workshops at OrthoTec 2013 Focus on Risk Management Throughout Medical Device Lifecycle and Robust Material Selection Process Development
10. Developing Robust Potency Assays for Validation, New Webinar hosted by Xtalks
11. New nanotech fiber: Robust handling, shocking performance
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Nano-cone textures generate extremely 'robust' water-repellent surfaces
(Date:8/29/2014)... The global companion diagnostics market ... It is expected to grow at a CAGR ... valued at $1.8 billion in 2013, according to ... , For more information regarding analysis details and ... research report, titled “Companion Diagnostics Market (Breast Cancer, ...
(Date:8/29/2014)... California (PRWEB) August 29, 2014 ... of Energy's 2014 Hydrogen Production R&D Award ... -- by splitting water using sunlight. , Shared ... (NREL) and the University of Nevada, Las Vegas ... work developing models of photoelectrochemical solar-hydrogen production and ...
(Date:8/28/2014)... Nevada City, CA (PRWEB) August 28, 2014 ... and sanitation products for the food processing industry, is ... conducting a side-by side comparison of the E2 soap ... Q E2 Sanitizing Foam Soap . Hand hygiene ... pathogens in the food processing environment. Six key criteria ...
(Date:8/28/2014)... NEW YORK , Aug. ... announces that a new market ... its catalogue: Whole ... (Systems, Kits (Library Preparation, Target ... Technology (Sequencing by Synthesis), by ...
Breaking Biology Technology:Companion Diagnostics Market to Hit $5.6 Billion in 2019: Transparency Market Research 2Companion Diagnostics Market to Hit $5.6 Billion in 2019: Transparency Market Research 3Livermore Team Awarded for Hydrogen Production Research 2Best Sanitizers, Inc. Asks Food Industry Professionals: With Fall Harvest On the Way, Is Your E2 Hand Soap Up to the Task? 2Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 2Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 3Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 4Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 5Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 6Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 7Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 8Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 9Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 10Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 11Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 12Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 13
... of Wisconsins economic growth will be getting the big ... best technology to the marketplace, controlling taxes and regulation, ... 21st century infrastructure in place to support all businesses. ... too, that may prove as vital to Wisconsins future ...
... For a number of reasons, we have all heard a lot ... drugs, the rise in number of people without medical insurance in ... the entry of generics into the market to help cap some ... reasons. , ,In fact, it is estimated that 41.2 million ...
... Systems is launching a national tour designed to ... wellness. The "GE Women's Health & Wellness Tour" will kick ... , ,"Empowering women with information about medical screening and prevention ... to managing their health," said Joseph M. Hogan, President and ...
Cached Biology Technology:Athletics, pop culture and the arts 2Athletics, pop culture and the arts 3The Generic Drug Industry in Illinois 2The Generic Drug Industry in Illinois 3The Generic Drug Industry in Illinois 4GE Launches Women's Health Initiative 2
(Date:8/28/2014)... new method for measuring and imaging how quickly blood ... better understand how drug abuse affects the brain, which ... and lead to better treatment options for recovering drug ... researchers from Stony Brook University in New York, USA ... today in The Optical Society,s (OSA) open-access journal ...
(Date:8/28/2014)... of new roads will be built worldwide by 2050. ... wildernesses, where they bring an influx of destructive loggers, ... study has created a ,global roadmap, for prioritising road ... competing demands of development and environmental protection. , The ... that natural importance of ecosystems and a ,road-benefits, layer ...
(Date:8/28/2014)... mould in homes could pose a significant health risk to ... the Journal of Allergy and Clinical Immunology . , ... different countries, the research has found that the presence of ... asthma sufferers, as well as increasing the likelihood of developing ... team at the University of Exeter Medical School and is ...
Breaking Biology News(10 mins):This is your brain's blood vessels on drugs 2This is your brain's blood vessels on drugs 3Study shows where on the planet new roads should and should not go 2Study shows where on the planet new roads should and should not go 3Indoor mold poses health risk to asthma sufferers 2
... DENVER Researchers have linked a variant in the ... chronic obstructive pulmonary disease (COPD) in Caucasian men. The ... Normative Aging Study, a multidisciplinary study of aging that ... presented at the ATS 2011 International Conference. "Our ...
... the process of converting the genetic information encoded in ... protein or any of several types of RNA. Scientists ... different physiological processes throughout the body are robustly pre-determined ... new study by researchers from the University of California, ...
... Most people who have had the experience of having ... the animals can "recognize" us. They seem to recognize our ... they respond to us differently from other people. , Actually, ... shown that domesticated animals, such as honey bees, chickens, pigeons, ...
Cached Biology News:Gene variant linked with development of COPD in men 2Plasticity of hormonal response permits rapid gene expression reprogramming 2I know you, bad guy! 2I know you, bad guy! 3
... CLS number is a new ... match Cornings product number. If ... order under the old Sigma-Aldrich ... service for assistance. ID clarifier: ...
ID clarifier: With ethidium bromide (50 μg/ml)...
... Mouse C2C12 cells were cultured in DMEM ... In order to keep the antigens in ... The cells are arrayed on a 12-well ... surface specifically treated to enhance cellular attachment and ...
... for optimal colony growth; ... growth of anchorage-dependent cells. ... colony-forming assays of human ... Not suitable for long-term ...
Biology Products: