Navigation Links
JHU chemists devise self-assembling 'organic wires'
Date:10/23/2008

From pacemakers constructed of materials that so closely mimic human tissues that a patient's body can't discern the difference to devices that bypass injured spinal cords to restore movement to paralyzed limbs, the possibilities presented by organic electronics read like something from a science fiction novel.

Derived from carbon-based compounds (hence the term "organic"), these "soft" electronic materials are valued as lightweight, flexible, easily processed alternatives to "hard" electronics components such as metal wires or silicon semiconductors. And just as the semiconductor industry is actively developing smaller and smaller transistors, so, too, are those involved with organic electronics devising ways to shrink the features of their materials, so they can be better utilized in bioelectronic applications such as those above.

To this end, a team of chemists at The Johns Hopkins University has created water-soluble electronic materials that spontaneously assemble themselves into "wires" much narrower than a human hair. An article about their work was published in a recent issue of the Journal of the American Chemical Society.

"What's exciting about our materials is that they are of size and scale that cells can intimately associate with, meaning that they may have built-in potential for biomedical applications," said John D. Tovar, an assistant professor in the Department of Chemistry in the Zanvyl Krieger School of Arts and Sciences. "Can we use these materials to guide electrical current at the nanoscale? Can we use them to regulate cell-to-cell communication as a prelude to re-engineering neural networks or damaged spinal cords? These are the kinds of questions we are looking forward to being able to address and answer in the coming years."

The team used the self-assembly principles that underlie the formation of beta-amyloid plaques, which are the protein deposits often associated with Alzheimer's disease, as a model for their new material. This raises another possibility: that these new electronic materials may eventually prove useful for imaging the formation of these plaques.

"Of course, much research has been done and is still being done to understand how amyloids form and to prevent or reverse their formation," Tovar said. "But the process also represents a powerful new pathway to fabricate nanoscale materials."


'/>"/>

Contact: Lisa DeNike
Lde@jhu.edu
443-287-9960
Johns Hopkins University
Source:Eurekalert  

Related biology news :

1. UC Riverside biochemists devise method for bypassing aluminum toxicity effects in plants
2. Smoke smudges Mexico Citys air, chemists identify sources
3. Biochemists manipulate fruit flavor enzymes
4. Chemists make beds with soft landings
5. NIST chemists get scoop on crude oil from pig manure
6. Glowing films developed by UC San Diego chemists reveal traces of explosives
7. Biologists are from Mars, chemists are from Venus?
8. Biochemists reveal details of mysterious bacterial microcompartments
9. Team of chemists receives $5 million grant to develop enzyme mimics
10. Good earth: Brown chemists show origin of soil-scented geosmin
11. Chemists get grip on slippery lipids
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
JHU chemists devise self-assembling 'organic wires'
(Date:4/6/2017)... 6, 2017 Forecasts by Product ... Readers, by End-Use (Transportation & Logistics, Government & Public ... & Fossil Generation Facility, Nuclear Power), Industrial, Retail, Business ... Are you looking for a definitive report on ... ...
(Date:4/5/2017)... , April 5, 2017 Today ... announcing that the server component of the HYPR platform ... for providing the end-to-end security architecture that empowers biometric ... HYPR has already secured over 15 million users ... including manufacturers of connected home product suites and physical ...
(Date:4/4/2017)... , April 4, 2017   EyeLock LLC , ... that the United States Patent and Trademark Office (USPTO) ... covers the linking of an iris image with a ... and represents the company,s 45 th issued patent. ... is very timely given the multi-modal biometric capabilities that ...
Breaking Biology News(10 mins):
(Date:8/16/2017)... ... August 16, 2017 , ... ... and Drug Administration (FDA) inspection at our Dilworth, MN site. The inspection took ... This inspection was conducted as part of a routine Bioresearch Monitoring Program (BIMO) ...
(Date:8/15/2017)... Charlotte, NC (PRWEB) , ... August 15, 2017 , ... ... in 2017, celebrating 10 years of successes helping medical technology companies and inventors develop ... company to a renowned full-service national engineering firm with a portfolio of clients in ...
(Date:8/15/2017)... ... August 15, 2017 , ... ... of 6” modular downlights designed to stay tightly sealed and perform efficiently for ... damp and wet location listings just aren't enough, such as: hospitals; behavioral health ...
(Date:8/14/2017)... ... August 14, 2017 , ... ... performing antibodies. Key researchers in the antibody community have recently come together to ... for antibodies in the laboratory. , The team at Thermo ...
Breaking Biology Technology: