Navigation Links
Scientists glimpse nanobubbles on super non-stick surfaces
Date:2/25/2010

ist at Brookhaven's [http://www.bnl.gov/cfn/] Center for Functional Nanometerials .

This coated, nanoscale textured surface was much more water repellant than the flat surface alone, suggesting the existence of nanobubbles. However, because the nanoscale is not accessible using ordinary microscopes, little is known about these nanobubbles.

To unambiguously prove that these ultra-small bubbles were present, the Brookhaven team carried out x-ray measurements at the [http://www.nsls.bnl.gov] National Synchrotron Light Source . "By watching how the x-rays diffracted, or bounced off the surface, we are able to image extremely small features and show that the cavities were mostly filled with air," said Brookhaven physicist Elaine DiMasi.

Checco added, "We were surprised that water penetrates only about 5 to 10 nanometers into the cavities an amount corresponding to only 15 to 30 layers of water molecules independent of the depth of the cavities. This provides the first direct evidence of the morphology of such small bubbles."

According to the scientists' observations, the bubbles are only about 10 nanometers in size about ten thousand times smaller than the width of a single human hair. And the team's results conclusively show that these tiny bubbles have nearly flat tops. This is in contrast to larger, micrometer-sized bubbles, which have a more rounded top.

"This flattened configuration is appealing for a range of applications because it is expected to increase hydrodynamic slippage past the nanotextured surface," Checco said. "Moreover, the fact that water hardly penetrates into the nano-textures, even if an external pressure is applied to the liquid, implies that these nanobubbles are very stable."

Therefore, in contrast to materials with larger, micrometer-sized textures, the surfaces fabricated by the Brookhaven team may exhibit more stable superhydrophobic properties.


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

0

GOOD

Page: 1 2 3

Related biology technology :

1. Scientists transplant nose of mosquito, advance fight against malaria
2. Penn material scientists turn light into electrical current using a golden nanoscale system
3. Seeing the quantum in chemistry: JILA scientists control chemical reactions of ultracold molecules
4. NFCR Scientists Discover Brain Tumor's “Escape Path”
5. Scientists achieve first rewire of genetic switches
6. Scientists create worlds first molecular transistor
7. 6 PNNL scientists elected AAAS fellows
8. Particle Size Distribution Technologies at American Association of Pharmaceutical Scientists (AAPS) Annual Meeting 2010
9. Argonne Scientists Use Bacteria to Power Simple Machines
10. Online Video of InVitria's Zap-CHO Helps Scientists Maximize CHO Cell Culture Performance
11. Scientists Rediscover Gene Target for Cancer Therapy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2013)... Graphite Metallizing Corporation announces a ... in stainless steel pillow blocks. This series combines ... the application and installation versatility of pillow blocks. ... work exceptionally well when submerged in water, water-soluble ... as acids, alkalies, hydrocarbons, black liquor, and liquid ...
(Date:5/23/2013)... -- Rahal Letterman Lanigan Racing (RLL) and StemCyte, Inc., a ... and therapeutics, announced today that StemCyte has become an ... car driven by James Jakes . ... 2013 season.   StemCyte, Inc. and Rahal Letterman ... umbilical cord blood banking and its educational initiative ,Stars ...
(Date:5/23/2013)... 2013 VG Energy, an agricultural biotech ... Renewable Research to conduct field trials using LipidMax ... is a majority owned subsidiary of VG Life ... Energy,s exclusively licensed compound LipidMax selectively inhibits certain ... plants, possessing a wide variety of applications including ...
(Date:5/23/2013)... May 23, 2013 BioTrends Research Group, ... firms for specialized biopharmaceutical issues, finds that, unaided, ... disease specialists reported that in the past six ... delaying treatment) in anticipation of the next generation ... ago, when only 6 percent reported that they ...
Breaking Biology Technology:Graphite Metallizing Now Offers GRAPHALLOY® Stainless Steel Pillow Blocks for Success in Submersible Applications 2Graphite Metallizing Now Offers GRAPHALLOY® Stainless Steel Pillow Blocks for Success in Submersible Applications 3StemCyte, Inc. Joins Rahal Letterman Lanigan Racing As Associate Sponsor Of No. 16 IndyCar Program For James Jakes Beginning With The 97th Indianapolis 500 2StemCyte, Inc. Joins Rahal Letterman Lanigan Racing As Associate Sponsor Of No. 16 IndyCar Program For James Jakes Beginning With The 97th Indianapolis 500 3VG Energy Enters into a Strategic Alliance with DAK Renewable Research for LipidMax Field Trials 2VG Energy Enters into a Strategic Alliance with DAK Renewable Research for LipidMax Field Trials 3The Majority of Physicians that Treat Hepatitis C Virus (HCV) Have Begun "Warehousing" and Preparing Their HCV Patients for the Next Generation of HCV Treatments 2The Majority of Physicians that Treat Hepatitis C Virus (HCV) Have Begun "Warehousing" and Preparing Their HCV Patients for the Next Generation of HCV Treatments 3
... capital for clinical trials, ZyStor Therapeutics will be ... venture capital forum next month in Overland Park, Kan. ... like to raise an additional $15 million or more in ... begin in early 2008. , ,The company, located in ...
... - During a meeting with U.S. Health and ... Wisconsin employers and healthcare organizations pledged to support health ... in the health information technology products used by their ... of an effort to support a national initiative aimed ...
... that a return to profitability won't happen until later this ... of $258.5 million, or $7.67 per diluted share, in a ... of financial reporting errors. , ,The loss, which included a ... million, or $6.85 per share, compares to a net loss ...
Cached Biology Technology:ZyStor seeks to raise $15M for clinical trials 2ZyStor seeks to raise $15M for clinical trials 3Wisconsin firms pledge to support healthcare IT standards 2Merge Healthcare suffers $258M loss in `06 2
(Date:5/23/2013)... of Public Health at Emory University, along with ... received a $4 million grant over four years ... (Health and Exposome Research Center: Understanding Lifetime Exposures). ... awarded in the United States. , The ... of Environmental Health Sciences (NIEHS) of the National ...
(Date:5/23/2013)... 2013) A new report from the Institute of ... engage in at least 60 minutes of vigorous or ... more than half of American youth meet current evidence-based ... moderate intensity physical activity daily, according to the report, ... in school for nearly half of their waking hours, ...
(Date:5/23/2013)... when microbial pathogens are growing increasingly resistant to the ... of Wisconsin scientists has synthesized a potent new class ... staph infections. , Writing online in the Journal ... by University of Wisconsin-Madison chemistry Professor Helen Blackwell describes ... of Staphylococcus aureus , a bacterium at the ...
Breaking Biology News(10 mins):Emory, Georgia Tech receive first human exposome center grant in US 2Emory, Georgia Tech receive first human exposome center grant in US 3Schools should provide students with daily physical activity, IOM recommends 2University of Wisconsin chemists find new compounds to curb staph infection 2
... release is available in German . ... that are crucial in fighting pathogen assault. Researchers ... the Helmholtz Centre for Environmental Research (UFZ) characterized ... class II locus in a tailed amphibian. Unlike ...
... Manchester has been successful in gaining major European ... millions of biological samples, such as DNA, can ... across Europe. The Centre for Integrated Genomic ... Translational Medicine, is playing a key role in ...
... CA Nitrogen is essential to all life on Earth, and ... determine how ecosystems respond to global warming. But certain aspects ... puzzled scientists, defying, in a sense, the laws of supply ... atmosphere often thrive where it is readily available in the ...
Cached Biology News:New findings on immune system in amphibians 2Manchester clears first hurdle in €170 million biobank building boom 2Researchers explain nitrogen paradox in forests 2