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:9/1/2015)... ... September 01, 2015 , ... ... of the new ImageXpress® Micro Confocal High-Content Imaging System. This transformative system ... that use 3D cellular models such as spheroids, tissues, and organisms. ...
(Date:9/1/2015)... Boston, MA (PRWEB) , ... September 01, 2015 ... ... from top biopharmaceutical companies in the neuro and pain management space join prominent ... Joseph B. Martin Conference Center at Harvard Medical School in Boston. , ...
(Date:9/1/2015)... (PRWEB) , ... September 01, 2015 , ... ... colleagues from University of California Los Angeles, Boston University School of Medicine, Frederick ... appears in PLOS One, the world’s first multidisciplinary Open Access journal. , ...
(Date:8/31/2015)... ... August 31, 2015 , ... In recent ... properties such as low carbon footprints and compostability. These properties can help in ... plastics. On the basis of applications, the market for biodegradable plastics can be ...
Breaking Biology Technology:ImageXpress Micro Confocal High-Content Imaging System Expands the Boundaries of Research 2ImageXpress Micro Confocal High-Content Imaging System Expands the Boundaries of Research 3Neuro Advance Boston Brings Together Leading Neuroscience Experts on October 14 at Harvard Medical School 2Synedgen’s Director for Pharmaceutical Manufacturing Publishes New Research 2Synedgen’s Director for Pharmaceutical Manufacturing Publishes New Research 3Biodegradable Plastics Market Growing at 10.8% CAGR to 2020 2Biodegradable Plastics Market Growing at 10.8% CAGR to 2020 3Biodegradable Plastics Market Growing at 10.8% CAGR to 2020 4Biodegradable Plastics Market Growing at 10.8% CAGR to 2020 5
... The state will give $250,000 in tax credits to C3 ... an 18,000-square-foot facility in Appleton's Northeast Business Park. , ,According ... create 28 jobs in the area. The credits are part ... aside $5 million in tax credits for each of eight ...
... up with UW-Eau Claire, UW-Stout and several other tech ... in the state. , ,Nanotechnology deals with particles one ... physical properties of matter begin to give way to ... understand. The potential of arranging nanoparticles, which scientists long ...
... the University of Wisconsin-Madison are taking another look at some ... That's what scientists call the way sounds change as you ... example, a jackhammer or a siren will sound higher pitched ... ,But there's an inverse Doppler effect, too, predicted ...
Cached Biology Technology:Chippewa Valley Technical College helps pioneer nanotech program, incubator 2Chippewa Valley Technical College helps pioneer nanotech program, incubator 3Chippewa Valley Technical College helps pioneer nanotech program, incubator 4
(Date:8/17/2015)... , Aug. 17, 2015  NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce market ... new sales campaign for Q4 2015. The new marketing ... team consisting of Amplitude Marketing Group ( http://amplitudemarketing.com/ ) ... Group is a leader in retail driven marketing and ...
(Date:8/12/2015)... 12, 2015  Synaptics Inc. (NASDAQ: SYNA ... today announced that four of its fingerprint ID ... officially been named FIDO Certified™ by the Fast ... certification, Synaptics, Natural ID™ fingerprint solutions are fully ... (UAF) standard and are interoperable among other products ...
(Date:8/6/2015)... Aug. 6, 2015  Today, U.S. Congressman ... Crossmatch ™ to learn firsthand how Silicon Valley ... Crossmatch is a world leader in multi-factor identity ... are helping federal agencies and commercial organizations achieve ... "The vast majority of network breaches ...
Breaking Biology News(10 mins):NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 2NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 3Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 2Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 3Rep. Honda to Visit Crossmatch in Redwood City 2
... when the Food and Drug Administration is reconsidering the ... study offers further evidence to support a University of ... treatment may be in order. Richard ... Houston College of Pharmacy (UHCOP), has been investigating whether ...
... Ill. -- Most people know that too much sodium from ... that people trying to lower their blood pressure should also ... to sodium. Researchers found that the ratio of sodium-to-potassium ... disease than sodium or potassium alone. "There isn,t ...
... the first clinical evidence that gene therapy reduces symptoms ... this promising treatment which has endured a sometimes turbulent ... Human Gene Therapy the findings stem from ... conducted in Germany and led by an investigator at ...
Cached Biology News:New asthma research opposes current drug treatment, says UH prof 2New asthma research opposes current drug treatment, says UH prof 3New asthma research opposes current drug treatment, says UH prof 4Cutting salt isn't the only way to reduce blood pressure 2Gene therapy demonstrates benefit in patients with rheumatoid arthritis 2Gene therapy demonstrates benefit in patients with rheumatoid arthritis 3
HiTrap NHS-activated HP, 1 x 5 ml. Category: Chromatography Systems & Accessories, Systems....
Human OSCAR MAb (Clone 259501)...
Human/Mouse G9a/EHMT2 MAb (Clone A8620A) Keywords: Eu-HMTase2...
Human M-CSF...
Biology Products: