Navigation Links
Study led by GW professor provides better understanding of water's freezing behavior at nanoscale
Date:5/21/2013

The results of a new study led by George Washington University Professor Tianshu Li provide direct computational evidence that nucleation of ice in small droplets is strongly size-dependent, an important conclusion in understanding water's behavior at the nanoscale. The formation of ice at the nanoscale is a challenging, basic scientific research question whose answer also has important implications for climate research and other fields.

The crystallization of ice from supercooled water is generally initiated by a process called nucleation. Because of the speed and size of nucleationit occurs within nanoseconds and nanometersprobing it by experiment or simulation is a major challenge.

By using an advanced simulation method, Dr. Li and his collaborators, Davide Donadio of Germany's Max Planck Institute for Polymer Research, and Giulia Galli, a professor of chemistry and physics at the University of California, Davis, were able to demonstrate that nucleation of ice is substantially suppressed in nano-sized water droplets. Their paper, "Ice nucleation at the nanoscale probes no man's land of water," was published today in the journal Nature Communications.

"A current challenge for scientists is to unveil water's behaviors below -35 degrees Celsius and above -123 degrees Celsius, a temperature range that chemists call 'no man's land,' " said Dr. Li, a professor of civil and environmental engineering at the George Washington University School of Engineering and Applied Science. "Fast ice crystallization can hardly be avoided at such low temperatures, so maintaining water in a liquid state is a major experimental challenge."

Since the frequency of ice nucleation scales with the volume of water, one of the strategies for overcoming this kinetic barrier is to reduce the volume of water. However, this raises the question of whether water at the nanoscale can still be regarded as equivalent to bulk water, and if not, where th
'/>"/>

Contact: Joanne Welsh
jwelsh@gwu.edu
202-994-2050
George Washington University
Source:Eurekalert

Page: 1 2

Related biology technology :

1. MacroGenics Announces Margetuximab (MGAH22) Phase 1 Data Presentation at ASCO; Initiates Phase 2 Clinical Study to Evaluate Activity of Margetuximab in Patients with Metastatic Breast Cancer
2. Inflamax Research selected by the Immune Tolerance Network and the National Institutes of Health to conduct a landmark clinical study on the underlying mechanisms of allergic inflammation.
3. Allegheny General Hospital Cardiovascular Institute Becomes Exclusive Pittsburgh Site for Study of Novel Coronary Artery Disease Device
4. HealthSparq to Reveal New Healthcare Transparency Benchmark Study at AHIP Institute 2013
5. FDA/PhUSE Collaboration: Study Data Reviewer’s Guide Work Package v1.1 Available
6. Study finds plasmin -- delivered through a bubble -- more effective than tPA in busting clots
7. Study: FOLFIRINOX Followed by Chemoradiation Shows Substantial Activity in Locally Advanced Pancreatic Cancer
8. Preclinical study shows heroin vaccine blocks relapse
9. New Study on Cordyceps Sinensis (Hirsutella Sinensis) Shows Anti-Inflammatory Properties
10. New Study: Valtrex (Valacyclovir) Side Effects Target the Brain; polyDNA Suggests a Natural Herpes Remedy
11. Wysebridge Patent Bar Review Launches America Invents Act (AIA) Study Suite
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/19/2014)... CA (PRWEB) December 18, 2014 With ... limited time special on Sartorius Biohit products . ... on mLINE pipettes, Picus Electronic Pipette Trade-in Program, and ... Health and Safety officers around the world. They are ... pipetting. Other features include:, ,     Full volume ...
(Date:12/19/2014)... Dec. 18, 2014 Egenix, Inc. is pleased to ... Chairman of the Board, to succeed Donald Fresne ; ... will continue as a member of the Board.  In recognition ... to the company over almost twenty years, the Board designated ... of Directors has established a Search Committee to find a ...
(Date:12/19/2014)... YORK , Dec. 18, 2014 Relmada ... therapies for the treatment of chronic pain, announced the ... today. "This was a transformational year in ... promising future for our company," said Sergio Traversa ... year, we have executed on key financial, human resource ...
(Date:12/17/2014)... 2014 Based on the revenues ... imaging market is dominated by four major players ... market. These players include GE Healthcare (U.K.), Siemens ... , Full Report Copy at http://www.marketsandmarkets.com/Market-Reports/surgical-imaging-market-210534462.html ... can be attributed to its strong product portfolio, ...
Breaking Biology Technology:Major Pipette Distributor Pipette.com Announces Sartorius Year End Specials 2Relmada Therapeutics Announces Results of Annual Shareholders Meeting 2Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 2Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 3Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 4
... partnership with Baxa Corporation, announces the, availability of ... laws and regulations related to sterile ... 30 Baxa Corporation announces,the availability of a ... for sterile compounding and USP ,compliance. The ...
... Inc., an innovative provider of advanced neuromodulation products designed to ... HealthSouth Corporation, the nation’s largest provider of inpatient rehabilitative healthcare ... Rehabilitation System and the NESS L300™ Foot Drop System to ... ...
... ALS CLINICALS AND DRUG DEVELOPMENT, ROCKVILLE, Md., ... CUR ) announced that Dr. Thomas Hazel ... Research. He will be,working with Dr. Karl Johe, ... company,s upcoming clinical trial for ALS,(Amytrophic Lateral Sclerosis, ...
Cached Biology Technology:CriticalPoint(TM) Introduces Crosswalk Tool for Sterile Compounding Regulatory Requirements 2CriticalPoint(TM) Introduces Crosswalk Tool for Sterile Compounding Regulatory Requirements 3 Bioness Announces NESS H200 and L300 Systems to Be Available at 88 HealthSouth Hospitals Nationwide 2 Bioness Announces NESS H200 and L300 Systems to Be Available at 88 HealthSouth Hospitals Nationwide 3Neuralstem Fills Key Product Development Position 2
(Date:12/17/2014)... --Research and Markets ( http://www.researchandmarkets.com/research/9zq33j/global_chemical ) ... Chemical Sensor Market 2015-2019" report to their ... One major trend upcoming in this ... in biomedical applications. Chemical sensors help in recording ... during surgical procedures. The Global Chemical Sensor market ...
(Date:12/11/2014)... DUBLIN , Dec. 09, 2014 Research ... http://photos.prnewswire.com/prnh/20130307/600769 ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) ... Market in India 2015-2019" report to their ... in this market is the adoption of multimodal ... one characteristic of an individual for verification and ...
(Date:12/10/2014)... 9, 2014  Valencell, a leader in performance biometric ... staggering demand from its licensees for highly accurate, clinically ... not solely coming from fitness and health sectors, but ... "A wearable is only as useful as the biometric ... ultimate driver in long-term mass consumer adoption of wearable ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... new tool developed at Cambridge University represents a breakthrough ... with Huntington's disease. , Researchers have developed an ... with the disease, using an automated touch screen. It ... study more effectively the cognitive difficulties in other neurodegenerative ...
... scientists at Johns Hopkins have linked a gene that allows ... houses insects and worms to the severe congestion and polyp ... of Hopkins sinus experts has found that the gene for ... times more active in people with severe sinus inflammation that ...
... of our body, those that get turned on, or expressed, ... proteins do the job of regulating gene expression by clasping ... contains the genetic instructions. , How does the protein recognize ... and DNA, sometimes with the DNA within the complex kinked ...
Cached Biology News:New technology to speed up research into Huntington's disease 2New technology to speed up research into Huntington's disease 3Hopkins scientists link immune response to 'ghost' parasites and severely congested sinuses 2Hopkins scientists link immune response to 'ghost' parasites and severely congested sinuses 3Hopkins scientists link immune response to 'ghost' parasites and severely congested sinuses 4Gene-bender proteins may sway to DNA 2
Vitronectin Immunogen: Purified, full length, native human protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
...
... Fully adjustable mixing angle, Variable speed, Digital ... a number of different sized tubes, Spillage ... cultures, keeping biological samples in suspension and ... be used in incubators up to 60C ...
... 2 real-time PCR detection system uses a ... (470-505 nm) and two photomultiplier tubes for ... Opticon 2 system is built on an ... thermal gradient feature. This item includes the ...
Biology Products: