Navigation Links
Researchers make nanosheets that mimic protein formation

ey created them, they weren't sure how.

"We were aware of certain proteins in living organisms that self-assemble into layers, called S-layers," Kotov said. S-layer proteins comprise the outermost cell envelope of a wide variety of bacteria and other single-celled, prokaryotic organisms called archaea, and they are able to form 2-d sheets with square, hexagonal, and other packings at surfaces and interfaces, as well as suspended in fluid. The group sought to make the connection between the forces governing S-layer protein assembly and the forces governing the nanoparticle assembly. That's when Glotzer's group, whose expertise is in computer modeling and simulation, became involved.

"It's likely that the forces between S-layer proteins are highly anisotropic, and we suspected this was also a feature of the nanoparticles," Glotzer said. "Computer simulations allowed us to further develop and test this hypothesis."

Post doctoral researcher Zhenli Zhang of Glotzer's group tried various combinations of forces based on information gleaned from experiments performed by post doctoral Zhiyong Tang of Kotov's group. The team discovered that the unique shape of the CdTe nanocrystals gave rise to a combination of forces that conspired to produce the unusual two-dimensional packing. Subsequent experiments by Kotov's group showed that if any of the forces were missing, the sheets would not form, confirming the simulation predictions.

"Self-assembly is nature's basic building principle for producing organized arrays of biomolecules with controlled geometrical and physicochemical surface properties," Glotzer said. "In the fabrication of functional nanoscale materials and devices, self-assembly offers substantial advantages over traditional manufacturing approaches, if we can design the building blocks appropriately. This is what we're trying to do."


'"/>

Source:University of Michigan


Page: 1 2

Related biology news :

1. Researchers discover way to make cells in the eye sensitive to light
2. Researchers find how protein allows insects to detect and respond to pheromones
3. Researchers Uncover Key Step In Manufacture of Memory Protein
4. Researchers reveal the infectious impact of salmon farms on wild salmon
5. Researchers identify target for cancer drugs
6. Researchers discover molecule that causes secondary stroke
7. Researchers find missing genes of ancient organism
8. Researchers trace evolution to relatively simple genetic changes
9. Researchers add new tool to tumor-treatment arsenal
10. UF Researchers Map Bacterial Proteins That Cause Tooth Loss
11. VCU Researchers Identify Networks Of Genes Responding To Alcohol In The Brain
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Researchers make nanosheets that mimic protein formation

(Date:8/19/2014)... 19 August 2014: An engineer at the University of ... having a brain to communicate with the body. , ... L Mahadevan, has developed a mathematical model for earthworms ... how these soft bodied animals get around. , The ... pattern generator (CPG) which states that the central brain ...
(Date:8/19/2014)... This news release is available in French . ... Stand: balancing the BENEFITS and RISKS of physical activity ... a stand on the promotion of childhood physical activity ... Applied Physiology, Nutrition, and Metabolism ( APNM ... of knowledge in the area of risk of physical ...
(Date:8/19/2014)... 9- and 10-year-olds finds that those who are more ... in the brain than their peers who are less ... carry nerve signals from one brain region to another. ... more efficient nerve activity. , The team reports ... Neuroscience. , "Previous studies suggest that children with ...
Breaking Biology News(10 mins):Secrets of how worms wriggle uncovered 2Taking a stand: Balancing the BENEFITS and RISKS of physical activity in children 2Taking a stand: Balancing the BENEFITS and RISKS of physical activity in children 3Physically fit kids have beefier brain white matter than their less-fit peers 2Physically fit kids have beefier brain white matter than their less-fit peers 3
... identify thousands of different items by scanning the tiny ... Cornell University could make it just as easy to ... interest by tagging them with color-coded probes made out ... by Dan Luo, Cornell assistant professor of biological engineering, ...
... the University of Alberta have discovered that chickens raised ... the nutrients they eat towards themselves or their eggs. ... for producers who must figure out how to deal ... egg production into their own bodies. "They like to ...
... regulates the body's main biological clocks also may play ... Southwestern Medical Center have found. , The Clock gene ... and wakefulness, body temperature, hormone levels, blood pressure and ... of the brain's reward system. , UT Southwestern researchers ...
Cached Biology News:Tagging pathogens with synthetic DNA 'barcodes' 2Tagging pathogens with synthetic DNA 'barcodes' 3What comes first…the chicken, the egg, or the bad attitude? 2Gene controlling circadian rhythms linked to drug addiction 2
(Date:8/19/2014)... Research and Markets  has announced the addition ... Strategic Business Report" report to their offering. ... Fuel Cells (SOFCs) in US$ Thousands. The report provides separate ... Europe , Asia-Pacific , ... for the period 2012 through 2020. Market data and analytics ...
(Date:8/19/2014)... Aug. 19, 2014 CSSi, the leader in ... announced the formation of the company,s Medical and Clinical ... addition of Dr. William E. Gannon, Jr. ... The MCAB, with Dr. Gannon,s ... therapeutic areas and set strategic goals for the advancement ...
(Date:8/19/2014)... Sales Horizons, a leader in sales training, ... skills training course to help companies develop clinical ... spend the majority of their time on client sites ... physician practice – providing support and education to both ... Horizons believes clinical staff are and should be considered ...
(Date:8/18/2014)... Aug. 18, 2014 BioElectronics Corporation ... consumer medical devices said that its EVP ... by CEOLIVE.TV as part of its Executive ... is available at http://ceolive.tv/bioelectronics-corp-otc-biel/biel-videos/2282-ceolive-tv-interview-bioelectronics-corp-otcqb-biel ... to investors the unique advantages of BioElectronics ...
Breaking Biology Technology:Global Solid Oxide Fuel Cells (SOFCs) - Strategic Business Report 2014 2CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 2CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 3Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 2Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 3BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 2BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 3
... at 27th Annual J.P. Morgan Healthcare Conference -REDWOOD CITY, ... GHDX ) announced today that it has initiated ... DX(R) colon cancer assay. Utilizing more than 1,200 ... study will use prospectively defined endpoints to assess the ...
... WaferGen Biosystems,Inc. (OTC Bulletin Board: WGBS), a ... biology and stem cell research systems, today,announced ... of the company,s SmartChip(TM) Real-Time PCR System ... alpha testing program. Initial tests,conducted at ...
... Trial conducted by Novartis to evaluate safety and efficacy ... ribavirin in patients with genotypes 2 and 3 hepatitis ... Inc. (Nasdaq: HGSI ) today announced that ... that will evaluate the safety and efficacy of Albuferon(R) ...
Cached Biology Technology:Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 2Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 3Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 4Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 5WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 2WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 3WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 4WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 5Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 2Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 3Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 4Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 5
... cDNA Library Panels were designed for full-length ... of PCRs to identify the desired cDNA ... in a 96-well "Master Plate," where each ... Having identified the positive well(s) by gel ...
... The Rapid-Screen cDNA Library Panels were designed ... three sets of PCRs to identify the ... is performed in a 96-well "Master Plate," ... 5,000 clones. Having identified the positive well(s) ...
... The ES Cell Characterization Kit consists ... activity determination as well as four ES ... (including controls). • Stem cells have become ... due to their therapeutic potential and because ...
... by a modification of the procedure ... Bioeng., 11 , 1055 ... yield an A 260 of ... (1 cm light path). Physical Form: ...
Biology Products: