Navigation Links
Empa grows 'sea urchin'-shaped structures
Date:7/29/2010

Processes which lend materials new characteristics are generally complicated and therefore often rather difficult to reproduce. So surprise turns to astonishment when scientists report on new methods which not only produce outstanding results despite the fact that they use economically priced starting materials but also do not need expensive instrumentation.

Just a simple framework made of polystyrene

This is exactly what Jamil Elias and Laetitia Philippe of Empa's Mechanics of Materials and Nanostructures Laboratory in Thun have succeeded in doing. They used polystyrene spheres as a sort of scaffolding to create three-dimensional nanostructures of semiconducting zinc oxide on various substrates. The two scientists are convinced that the (nanostructured) rough but regularly-structured surfaces they have produced this way can be exploited in a range of electronic and optoelectronic devices such as solar cells and also short wave lasers, light emitting diodes and field emission displays.

The scientific world reacted promptly. The paper in which the results were reported was published in January 2010 in the on line edition of Advanced Materials. In the same month it became the most frequently downloaded article, and in April it was selected to appear on the Inside Front Cover of the journal.

The principle behind the process is quite simple. Little spheres of polystyrene a few micrometers in diameter are placed on an electrically conducting surface where they orient themselves in regular patterns. Polystyrene is cheap and ubiquitous it is widely used as a packaging material (for example for plastic yoghurt pots) or as insulating material in expanded form as a solidified foam.

Hollow bodies with prickles for photovoltaic applications

The tiny balls of polystyrene anchored in this way form the template on which the nanowires are desposited. Jamil Elias has succeeded in using an electroch
'/>"/>

Contact: Dr. Jamil Elias
jamil.elias@empa.ch
41-332-283-627
Swiss Federal Laboratories for Materials Science and Technology (EMPA)
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Dramatic changes in agriculture needed as world warms and grows, researchers say
2. Nations Largest Network of Doctors Specializing in Bioidentical Hormones Grows at an Exponential Rate
3. The MedZilla Report for October 2009 - Health Care Employment Grows Again in October Even As Clinics, Specialty Centers Close
4. The MedZilla Report for September 2009 - Care Grows Again in September and - Surprisingly - Pharma Sales Jobs Up Too
5. Impact of Open Source Software on Clinical Trials Grows With Release of OpenClinica 3.0 Electronic Data Capture Software
6. The MedZilla Report for August 2009 -- Health Care Grows Another 28,000 While Hospitals And Insurers Feel Painful Pinch
7. Video shows nanotube spins as it grows
8. Depth charge: Using atomic force microscopy to study subsurface structures
9. Biomedical Structures Receives Growth Capital from Ampersand Ventures to Fund Ongoing Expansion
10. Light twists rigid structures in unexpected nanotech finding
11. Using magnetic toys as inspiration, researchers tease out structures of self-assembled clusters
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Empa grows 'sea urchin'-shaped structures
(Date:8/28/2015)... ... August 28, 2015 , ... ... presented two studies at the International Spine Intervention Society’ s 23rd ... through to August 1st, 2015. With a focus on evidence-based research and clinical ...
(Date:8/28/2015)... ... , ... Since the initial launch of FireflySci Inc. (FFS) in early 2015, the company continues ... Images such as the Fonz in a lab coat and Large Marge have been posted ... field. , FireflySci is proud to be the only cuvette manufacturer is the ...
(Date:8/27/2015)... /PRNewswire/ - Portage Biotech Inc. ("Portage") (OTC Market: ... Holding Company Limited (Biohaven), announced today that dosing ... BHV-0223, a glutamate modulating agent. Biohaven filed an ... obtained clearance from the U.S. Food and Drug ... holds 54% equity interest in Biohaven, a private ...
(Date:8/27/2015)... Aug. 27, 2015 HUYA Bioscience International (HUYA) today ... the Japan Society of HTLV-1, held this week at ... purpose of the Society is to promote research on ... of medical technology and research related to these fields ... "HUYA is proud to support this prestigious conference," ...
Breaking Biology Technology:Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 2Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 3Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 4Cuvette Manufacturer FireflySci Launches Back to School Deals with Complimentary Shipping On All Orders 2Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 2Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 3Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 4HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 2HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 3HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 4
... that it intends to release the results of its ... approximately 4:00 p.m. Eastern,Time (ET). Following the release, at ... discuss the results of its first quarter of fiscal ... one hour in,duration. The conference call will also be ...
... JobLoft.com, a leading online job,board that lists ... on,geographic proximity, announced today the expansion of ... acquisition of RegionalHelpWanted.com by,its parent company, onTargetjobs. ... 350 geographically focused,Internet job boards, JobLoft.com now ...
... - Company Establishes U.S. subsidiary in Philadelphia Area ... a leader in in,vivo cellular imaging, announced today ... Inc. is the U.S. subsidiary of Paris-based Mauna,Kea ... new,endoscopic imaging approach which improves patient care by ...
Cached Biology Technology:Martek to Announce First Quarter 2008 Results on March 5, 2008 2JobLoft.com Strengthens Local Market Candidate Reach Through RegionalHelpWanted.com Acquisition 2Chris Tihansky Appointed President of In Vivo Cellular Imaging Leader Cellvizio Inc. 2
(Date:8/4/2015)... , Aug. 04, 2015 ... http://www.researchandmarkets.com/research/nvh7k2/digital_forensics ) has announced the addition of ... (Hardware, Software, and Service), Sub-Segment (Computer Forensics, ... Forensics), Tool Types, Service, Vertical and Region ... to their offering. By Component ...
(Date:7/31/2015)... , Kina, 31. juli 2015 Den ... bliver afholdt af BGI fra den 22. - 25. oktober ... Konferencen fejrer sin 10-års fødselsdag i år. Siden ... mest indflydelsesrige årlige møder på ,omik,-feltet, og er en ... ICG-10 fokuserer på nylige gennembrud og ...
(Date:7/31/2015)... 31 juillet 2015 La 10e Conférence ... sera organisée par le BGI du 22 au ... en Chine. La conférence célèbre ... en 2006, l,ICG est devenue l,une des réunions ... des « omiques » et c,est aussi la plus dynamique, ...
Breaking Biology News(10 mins):Digital Forensics Market - The Market Represents a Compound Annual Growth Rate (CAGR) of 11.3% From 2015 to 2020 2Den 10. internationale konference om Genomics (ICG-10) åbner i oktober 2La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 2La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 3
... may be associated with more advanced physical disability and ... by neurologists at the University at Buffalo have shown. ... Neurology meeting, held earlier this month, indicated that:, ... insufficient vitamin D levels. , Clinical evaluation and ...
... N.Y. Changing the hue of hospital gowns and bed ... a physician,s ability to detect cyanosis and other health-related skin ... Institute. "If a doctor sees a patient, and then ... or no idea whether the patient,s skin has changed color," ...
... Forget what you know about how diseases are diagnosednew ... FASEB Journal ( http://www.fasebj.org ) details a noninvasive ... stages before symptoms can be seen using traditional methods. Even ... early that they may be reversed before any permanent damage ...
Cached Biology News:Low vitamin D levels are related to ms brain atrophy, cognitive function, studies show 2Nude-colored hospital gowns could help doctors better detect hard-to-see symptoms 2New tool helps scientists 'see' molecular signals of eye disease before symptoms arise 2
... is a DNA-dependent RNA polymerase which is ... It efficiently synthesizes in vitro transcripts from ... from a T7 promoter. Transcripts can ... in vitro translation, substrates in RNA processing ...
... ATP: D-hexose 6- phosphotransferase/D-glucose-6-phosphate: NADP ... of HK will phosphorylate 1 ... min at 25C at pH ... will oxidize 1 mol of ...
... an endoribonuclease, the RNA strand of ... origin, e.g. that of phage FX174, ... x poly(dT). RNase H produces ribonucleotides ... no activity is detected with polyribonucleotides ...
Request Info...
Biology Products: