Navigation Links
Water droplets direct self-assembly process in thin-film materials
Date:11/23/2009

CHAMPAIGN, Ill. You can think of it as origami very high-tech origami.

Researchers at the University of Illinois have developed a technique for fabricating three-dimensional, single-crystalline silicon structures from thin films by coupling photolithography and a self-folding process driven by capillary interactions.

The films, only a few microns thick, offer mechanical bendability that is not possible with thicker pieces of the same material.

"This is a completely different approach to making three-dimensional structures," said Ralph G. Nuzzo, the G. L. Clark Professor of Chemistry at Illinois. "We are opening a new window into what can be done in self-assembly processes."

Nuzzo is corresponding author of a paper accepted for publication in the Proceedings of the National Academy of Sciences. The paper is to be posted on the journal's Early Edition Web site the week of November 23.

As a demonstration of the new capillary-driven, self-assembly process, Nuzzo and colleagues constructed spherical and cylindrical shaped silicon solar cells and evaluated their performance.

The researchers also developed a predictive model that takes into account the type of thin film to be used, the film's mechanical properties and the desired structural shape.

"The model identifies the critical conditions for self-folding of different geometric shapes," said mechanical science and engineering professor K. Jimmy Hsia. "Using the model, we can improve the folding process, select the best material to achieve certain goals, and predict how the structure will behave for a given material, thickness and shape."

To fabricate their free-standing solar cells, the researchers began by using photolithography to define the desired geometric shape on a thin film of single-crystalline silicon, which was mounted on a thicker, insulated silicon wafer. Next, they removed the exposed silicon with etchant, undercut the remaining
'/>"/>

Contact: James E. Kloeppel
kloeppel@illinois.edu
217-244-1073
University of Illinois at Urbana-Champaign
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Safety in Drinking Water? Monitoring for Radioactive Contaminants Only Required Every Three, Six, or Nine Years per Federal Law
2. Cellulose from Wastewater Can Now be Turned into Fuel for Cars
3. MO BIO Laboratories, Inc. Launches PowerWater(R) RNA Isolation Kit
4. EAU Completes Approval Process for Electrolyzed Water as Sanitation Process for Industrial Clean-in-Place Application
5. Reject watermelons -- the newest renewable energy source
6. Los Gatos Research Introduces Second Generation Liquid-Water Isotope Analyzer
7. Monitoring water through a snakes eyes
8. Wastewater produces electricity and desalinates water
9. Controversies on Jatropha Water-Footprint, Jatropha Cultivation for Biofuel in Tanzania and More on Jatropha Oil Shared by Jatro-Entrepreneur Ruud Van Eck.
10. Supelco(R) and MIP Technologies Launch New SPE Product for the Selective Extraction of NSAIDs From Environmental Water
11. Monitoring water through a snakes eyes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/24/2014)... 2014 1000 balances – 4 steps ... customers’ weighing needs and expertly narrows down the mass ... scales or even terminals. , First, select the ... (or select readability instead) and define the accuracy – ... criteria narrows down the list to models that fit ...
(Date:7/24/2014)... 24, 2014  Spherix Incorporated (SPEX) -- an intellectual ... of intellectual property, today announced that the Company will ... 30, 2014 on Monday, August 18, 2014 for shareholders. ... ET on Monday, August 18, 2014 to discuss the ... company,s CEO, Anthony Hayes . Following ...
(Date:7/24/2014)... The patent provides substantially greater ... results. It also enables true sample ID and ... reporting of high profile assays such as those ... growing area of biotechnology that includes DNA based ... companion diagnostics in personalized medicine. The new patent ...
(Date:7/23/2014)... Calif., July 23, 2014  Sangamo BioSciences, Inc. (NASDAQ: ... 2014 financial results and accomplishments. For ... a consolidated net loss of $7.0 million, or $0.10 ... million, or $0.10 per share, for the same period ... had cash, cash equivalents, marketable securities and interest receivable ...
Breaking Biology Technology:Spherix Schedules Shareholder Update Call 2New DNA-barcode Patent Virtually Eliminates False Test Results and Sample Mix-up 2Sangamo BioSciences Reports Second Quarter 2014 Financial Results 2Sangamo BioSciences Reports Second Quarter 2014 Financial Results 3Sangamo BioSciences Reports Second Quarter 2014 Financial Results 4Sangamo BioSciences Reports Second Quarter 2014 Financial Results 5Sangamo BioSciences Reports Second Quarter 2014 Financial Results 6Sangamo BioSciences Reports Second Quarter 2014 Financial Results 7Sangamo BioSciences Reports Second Quarter 2014 Financial Results 8Sangamo BioSciences Reports Second Quarter 2014 Financial Results 9
... Mano Receive 2008 JCA-Mauvernay Award, LAUSANNE, ... global biopharmaceutical development specialist that,focuses on serious ... Ichijo and Hiroyuki Mano with the 2008 ... research work in oncology.,The Awards were presented ...
... Preclinical Animal Data Demonstrates Selective Survival Advantage of ... Reduced Viral Loads, WASHINGTON and RICHMOND, Calif., ... ) announced today the presentation,of data demonstrating that ... HIV infection by treatment with zinc finger DNA-binding,protein ...
... Growth in Core ... Clinical Business, SUNNYVALE, Calif., Oct. 28 ... of $44.9,million, an increase of 24% over the third quarter of fiscal ... revenue of $36.3,million and a net loss of $4.7 million, or $(0.09) ...
Cached Biology Technology:Japanese Cancer Association and Debiopharm Honour Japanese Research 2Japanese Cancer Association and Debiopharm Honour Japanese Research 3Sangamo BioSciences Presents Data at ICAAC Demonstrating 'In Vivo' Protection Against HIV Infection by CCR5-ZFN Therapeutic 2Sangamo BioSciences Presents Data at ICAAC Demonstrating 'In Vivo' Protection Against HIV Infection by CCR5-ZFN Therapeutic 3Sangamo BioSciences Presents Data at ICAAC Demonstrating 'In Vivo' Protection Against HIV Infection by CCR5-ZFN Therapeutic 4Sangamo BioSciences Presents Data at ICAAC Demonstrating 'In Vivo' Protection Against HIV Infection by CCR5-ZFN Therapeutic 5Cepheid Reports Third Quarter Revenue of $44.9 Million 2Cepheid Reports Third Quarter Revenue of $44.9 Million 3Cepheid Reports Third Quarter Revenue of $44.9 Million 4Cepheid Reports Third Quarter Revenue of $44.9 Million 5Cepheid Reports Third Quarter Revenue of $44.9 Million 6Cepheid Reports Third Quarter Revenue of $44.9 Million 7Cepheid Reports Third Quarter Revenue of $44.9 Million 8Cepheid Reports Third Quarter Revenue of $44.9 Million 9Cepheid Reports Third Quarter Revenue of $44.9 Million 10Cepheid Reports Third Quarter Revenue of $44.9 Million 11Cepheid Reports Third Quarter Revenue of $44.9 Million 12Cepheid Reports Third Quarter Revenue of $44.9 Million 13
(Date:7/24/2014)... drug that successfully treated lupus in mice, a biomedical engineer ... to expand his research to a new version of the ... autoimmune diseases., Chandra Mohan, Hugh Roy and Lillie Cranz Cullen ... study in Arthritis Research & Therapy outlining the use of ... reduced the number of cases of lupus-related kidney disease., He ...
(Date:7/24/2014)... virus living inside your gut that has gone undetected ... researchers at San Diego State University has found that ... a newly described virus, named crAssphage, which infects one ... Bacteroidetes . This phylum of bacteria is thought to ... The research appears today in Nature Communications ., ...
(Date:7/23/2014)... the pitcher, a thirsty bird happens upon a vessel of ... finds the water level out of his reach. Not strong ... into it one at a time until the ... , Highlighting the value of ingenuity, the fable demonstrates that ... It also characterizes crows as pretty resourceful problem solvers. New ...
Breaking Biology News(10 mins):Biomedical engineer looks at new applications for novel lupus drug 2Biomedical engineer looks at new applications for novel lupus drug 3Newly discovered gut virus lives in half the world's population 2Newly discovered gut virus lives in half the world's population 3Smarter than a first-grader? 2Smarter than a first-grader? 3Smarter than a first-grader? 4
... and China has produced a first draft of the papaya ... of the plants gene coding sequence, sheds new light on ... genetically modified plant, the newly sequenced papaya genome offers the ... the plant resistant to the papaya ringspot virus. The ...
... with good oral health could become the first tool ... to periodontal disease treatments, say researchers at the University ... called HtpG, the bug that makes it is Porphyromonas ... also has potential as a vaccine candidate, according to ...
... the University Hospital of Magdeburg (Germany) have discovered ... and oxidative stress followed by the activation of ... target gene expression in atrial tissue. Their study ... Experimental Biology and Medicine. Multiple tachycardia-associated factors appear ...
Cached Biology News:First draft of transgenic papaya genome yields many fruits 2First draft of transgenic papaya genome yields many fruits 3Presence of certain antibodies signals healthier teeth and gums 2Mitochondrial dysfunction and redox signaling in atrial tachyarrhythmia 2
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. ID clarifier: rack ...
This modular benchtop laminar flow hood forces air through a 99.99% efficient HEPA filter to create a clean processing area. Options include a work bench, ionizaing bar, and air velocity gauge....
... Data System (CDS) now provides integrated ... data processing and reporting for the ... The companys innovative HPLC instrument has ... of Thermo Scientific Hypersil GOLD 1.9 ...
...
Biology Products: