Navigation Links
It's raining pentagons
Date:3/8/2009

This week's Nature Materials (09 March 2009) reveals how an international team of scientists led by researchers at the London Centre for Nanotechnology (LCN) at UCL have discovered a novel one dimensional ice chain structure built from pentagons that may prove to be a step toward the development of new materials which can be used to seed clouds and cause rain.

Although the structure of regular ice is well known at the macroscale, its structures are much more mysterious and less well understood at the nanoscale - particularly when ice forms at an interface with matter as is the case in the higher atmosphere on particles of dust. "For the first time, we have shown that ice can build an extended one dimensional chain structure entirely from pentagons and not hexagons" says Dr Michaelides. "This discovery leads to fundamental new understanding about the nature of hydrogen bonding at interfaces (there is no a priori rule that hexagons should form) and suggests that when people are searching for new ice nucleating agents which can be used to seed clouds and cause rain, they do not necessarily need to focus on materials that have hexagonal surfaces - other types of surfaces may be good too."

Ice structures are usually built out of simple hexagonal arrangements of water molecules and this hexagonal building block motif is easily observed in the structures of snowflakes. However, during their studies Dr Angelos Michaelides and co-workers from the Fritz Haber Institute, Berlin, and the University of Liverpool have discovered a natural nanoscale ice structure formed of pentagons.

"It is important to understand the structure of ice on the nanoscale, and in particular up against solid surfaces because this is how ice crystals form," explains the paper's first author Dr Javier Carrasco. "We need to understand the structure of ice crystals in the upper atmosphere because they play an important role in the formation of clouds and precipitatio
'/>"/>

Contact: Dr. Thierry Bontoux
t.bontoux@ucl.ac.uk
44-207-679-0056
University College London
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. CJP Declares the Dates of 3rd Global Jatropha Hi-Tech Agricultural Training Programme
2. McCulley/Cuppan Announced Today The Launch Of A New Series Of Web-Based Training Programs For Professionals In The Biopharmaceutical And Life Science Industries
3. Advanced Technologies and Wireless Telecommunications Enhance Care and Medical Training at the Ryder Trauma Center in Miami
4. HEALTHeCAREERS Network Pledges $15,000 to ASRT Foundation for Professional Healthcare Training
5. Rapidly Expanding Ohio Bioscience Industry Drives New Workforce Training Program
6. Ziehm Imaging Extends its Training Offer
7. Upcoming Energy Psychology Event in Chapel Hill Will Provide Training in New Breakthrough Do It Yourself Healing
8. City of Hope Helps KGI Launch New Management Training Program for Scientists
9. Towards zero training for brain-computer interfacing
10. Microfiltration Membrane and Ultrafiltration Membrane Training
11. C3i Teams with Oracles Health Sciences Global Business Unit to Provide Customers with Clinical Training and Support Services
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
It's raining pentagons
(Date:3/27/2015)... 2015  Peter Walter wurde als Gewinner ... seine bahnbrechende Arbeit ausgewählt, die sich damit ... sowie für die Entschlüsselung der Komponenten eines ... nutzen, der mit der Ansammlung von deformierten ... Biochemie an der University of California, San ...
(Date:3/27/2015)... 2015 Working in collaboration with the ... London , Richmond Pharmacology is the first centre ... study for an investigational RNAi therapeutic being developed for the ... nerves and heart. Read press release ... Based at St Georges University of London ...
(Date:3/26/2015)... WARREN, N.J., March 26, 2015  Roka Bioscience, ... company focused on providing advanced testing solutions for ... financial results for the three months and full ... Quarter 2014 Financial Results:Revenue for the quarter ended ... $689,000 for the fourth quarter of 2013 and ...
(Date:3/26/2015)... March 26, 2015  BioNano Genomics, Inc., the leader ... Salyer as chief commercial officer. Salyer has more ... sales teams in life sciences. At BioNano, Salyer will ... a genome-mapping platform to assemble a comprehensive view of ... To date, 32 institutions located in the ...
Breaking Biology Technology:Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 2Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 3Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 4Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 2Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 3Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 4Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 5Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 6Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 7BioNano Genomics Appoints Terry Salyer as Chief Commercial Officer 2BioNano Genomics Appoints Terry Salyer as Chief Commercial Officer 3
... , FREISING-WEIHENSTEPHAN, Germany, September 15 ... a collaboration agreement with,Allergan, Inc. (NYSE: AGN ... in drug delivery and ophthalmic drug,development with a goal ... , Under the terms of ...
... ... use an electric breast pump in public with her new patented device that allows a ... changer for breastfeeding mothers in the workplace, as anchorwoman attests, "It works!" , ... Sacramento, CA (PRWEB) September 15, 2009 -- ...
... , , BALTIMORE, Sept. 14 ... engaged in the development of advanced preclinical platforms and tumor specific ... financial results for the first quarter ended July 31, 2009. Full ... Form 10-Q at www.championsbiotechnology.com . , , ...
Cached Biology Technology:Pieris AG Enters into Anticalin Collaboration With Allergan, Inc. 2ER Doctor Demonstrates Breast Pump on Live TV with Patented New Freemie Hands-Free System 2ER Doctor Demonstrates Breast Pump on Live TV with Patented New Freemie Hands-Free System 3ER Doctor Demonstrates Breast Pump on Live TV with Patented New Freemie Hands-Free System 4Champions Biotechnology Reports Fiscal 2010 First Quarter Financial Results 2Champions Biotechnology Reports Fiscal 2010 First Quarter Financial Results 3Champions Biotechnology Reports Fiscal 2010 First Quarter Financial Results 4Champions Biotechnology Reports Fiscal 2010 First Quarter Financial Results 5
(Date:3/23/2015)... --NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the "Company"), ... market, announces its biometric payment technology, the Wocket® smart wallet, ... March 30 th . The new ... York markets. Gino Pereira ... new ad campaign following the recent initial shipment of Wocket ...
(Date:3/20/2015)... Markets ( http://www.researchandmarkets.com/research/rswjb4/hand_geometry ) has announced the addition ... report to their offering. This report analyzes ... report provides separate comprehensive analytics for the US, ... Europe , Asia-Pacific , ... Annual estimates and forecasts are provided for the period 2013 ...
(Date:3/20/2015)... Markets ( http://www.researchandmarkets.com/research/vkzvcs/iris_biometrics ) has announced the addition ... report to their offering. This report analyzes ... report provides separate comprehensive analytics for the US, ... Europe , Asia-Pacific , ... . Annual estimates and forecasts are provided for ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 2NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 2Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 3Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 4Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 5
... Prevention and Treatment of Cardiovascular Disease , ... the occasion, the Journal of the American Dietetic ... factors for treating and preventing cardiovascular disease. The ... and other articles provide scientific rationale for food ...
... worlds poorest regions could face severe crop losses in the ... new study by researchers at Stanford Universitys Program on Food ... published in the Feb. 1 issue of the journal Science. ... on agriculture for their livelihoods, said lead author David Lobell, ...
... blood vessels is by creating too much competition for an ... That amino acid, L-arginine, is broken down by the enzyme ... from the proteins we eat. Diabetics have a lot of ... says Dr. Maritza Romero, postdoctoral fellow at the Medical College ...
Cached Biology News:Highlights from the February 2008 Journal of the American Dietetic Association 2Highlights from the February 2008 Journal of the American Dietetic Association 3Impoverished areas of Africa and Asia face severe crop losses from climate change in 20 years 2Impoverished areas of Africa and Asia face severe crop losses from climate change in 20 years 3Impoverished areas of Africa and Asia face severe crop losses from climate change in 20 years 4Diabetes makes it hard for blood vessels to relax 2
... Monoclonal Antibody, Unconjugated Applications: ... ICC: Use at an assay dependent dilution. WB: ... ug/ml, this concentration is determined using a whole ... kDa. Not tested in other applications. Optimal ...
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 ...
SHP-2 Antibody...
Anti human PPAR gamma2 mouse monoclonal antibody...
Biology Products: