HOME >> BIOLOGY >> NEWS
MIT: Nanocomposities yield strong, stretchy fibers

CAMBRIDGE, Mass.--Creating artificial substances that are both stretchy and strong has long been an elusive engineering goal. Inspired by spider silk, a naturally occurring strong and stretchy substance, MIT researchers have now devised a way to produce a material that begins to mimic this combination of desirable properties.

Such materials, known as polymeric nanocomposites, could be used to strengthen and toughen packaging materials and develop tear-resistant fabrics or biomedical devices. Professor Gareth McKinley, graduate student Shawna Liff and postdoctoral researcher Nitin Kumar worked at MIT's Institute for Soldier Nanotechnologies (ISN) to develop a new method for effectively preparing these materials. The research appears in the January issue of Nature Materials.

Engineers are already able to create materials that are either very strong or very stretchy, but it has been difficult to achieve both qualities in the same material. In the last few years scientists have determined that the secret behind the combined strength and flexibility of spider silk lies in the arrangement of the nano-crystalline reinforcement of the silk while it is being produced.

"If you look closely at the structure of spider silk, it is filled with a lot of very small crystals," says McKinley, a professor of mechanical engineering. "It's highly reinforced."

The silk's strength and flexibility come from this nanoscale crystalline reinforcement and from the way these tiny crystals are oriented towards and strongly adhere to the stretchy protein that forms their surrounding polymeric matrix.

Liff, a Ph.D. student in mechanical engineering, and Kumar, a former MIT postdoctoral associate, teamed up to figure out how to begin to emulate this nano-reinforced structure in a synthetic polymer (A polymer or plastic consists of long chains composed of small repeating molecular units). Numerous earlier unsuccessful attempts, tackling th
'"/>

Contact: Elizabeth Thomson
thomson@mit.edu
617-258-5402
Massachusetts Institute of Technology
19-Jan-2007


Page: 1 2 3

Related biology news :

1. Lost forest yields several new species
2. Natures secrets yield new adhesive material
3. Sequencing method yields fuller picture
4. Modified mushrooms may yield human drugs
5. St. Jude study yields secrets of chromosome movement
6. Virus widely used in gene therapy research yields important clues to genomic instability
7. From ink to optics, study of particle mixtures yields fundamental insights
8. Cooperative science program yields results
9. Supermap of avian flu yields new info on source/spread
10. Puzzling plankton yield secrets to role in evolution/global photosynthesis
11. Researchers look into plant cells to increase ethanol yields

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: MIT Nanocomposities yield strong stretchy fibers

(Date:7/24/2014)... is available in German . ... 300 million asthma sufferers worldwide, a further 600 million ... of the global population contending with allergic rhinitis (allergic ... also affect other organs and parts of the body ... intestine (in the form of inflammatory bowel diseases such ...
(Date:7/24/2014)... is available in German . ... recognize and respond to threats to health, and to ... understanding of the mechanism underlying immunologic memory, however, has ... converged to support the hypothesis that the persistence of ... with stem-cell-like potential. Until now, there was no conclusive ...
(Date:7/23/2014)... of identical twins has found that early reading skill ... the journal Child Development , was conducted by ... London. , "Since reading is an ability that can ... according to Stuart J. Ritchie, research fellow in psychology ... "Early remediation of reading problems might aid not only ...
Breaking Biology News(10 mins):New drugs to combat asthma and the like 2New drugs to combat asthma and the like 3Experiments prove 'stemness' of individual immune memory cells 2Experiments prove 'stemness' of individual immune memory cells 3Stronger early reading skills predict higher intelligence later 2
(Date:7/24/2014)... July 24, 2014 Research and Markets ... Genomics and Proteomics Analytical Instruments Market 2014-2018" report ... Genomics is the study of the ... of the structure and functions of proteomes or sets ... and technology. Genomics involves the mapping of genes and ...
(Date:7/24/2014)... 24, 2014  CorMedix Inc. (NYSE MKT: CRMD), ... therapeutic products for the prevention and treatment of ... notice on July 18, 2014 from the NYSE ... the CorMedix plan to regain compliance with continued ... the NYSE-MKT is continuing the Company,s listing and ...
(Date:7/24/2014)... 24, 2014  Neogen Corporation (Nasdaq: NEOG ... its potential revenue from new rodenticide research are premature. ... analysts on July 22, 2014, Neogen,s CEO commented about ... research. "It was my intent Tuesday at ... of a new type of rodenticide, but certainly not ...
(Date:7/24/2014)... Toronto, Canada (PRWEB) July 24, 2014 ... for Optimizing Dose Escalation in First in Human Studies” ... to make better go/no-go decisions. , With increasing R&D ... market, pharmaceutical companies need to maximize the knowledge collected ... go/no-go decisions and improve success in late stage development. ...
Breaking Biology Technology:Global Genomics and Proteomics Analytical Instruments Market 2014-2018: Key Vendors are Agilent, Bio-Rad , F. Hoffmann, La Roche, Illumina, PerkinElmer and Thermo Fisher Scientific 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 3Neogen comments on SenesTech 2Best Practices for Optimizing Dose Escalation in First in Human Studies, New Webinar August 6th Hosted by Xtalks 2
Cached News: