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:6/22/2016)... , June 22, 2016  The American College of ... Trade Show Executive Magazine as one of the fastest-growing ... May 25-27 at the Bellagio in Las Vegas ... the highest percentage of growth in each of the following ... exhibiting companies and number of attendees. The 2015 ACMG Annual ...
(Date:6/22/2016)... On Monday, the Department of Homeland Security ... solutions for the Biometric Exit Program. The Request for ... (CBP), explains that CBP intends to add biometrics to ... United States , in order to deter visa ... Logo - http://photos.prnewswire.com/prnh/20160622/382209LOGO ...
(Date:6/20/2016)... -- Securus Technologies, a leading provider of civil ... investigation, corrections and monitoring announced that after exhaustive ... the final acceptance by all three (3) Department ... (MAS) installed. Furthermore, Securus will have contracts for ... October, 2016. MAS distinguishes between legitimate wireless device ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... ... December 01, 2016 , ... PhUSE will build on the ... US Single Day Events (SDE) to organize a multiple-day US conference. The first ... Topics of the pharmaceutical and life sciences industry will cover industry standards, data ...
(Date:12/2/2016)... Boston, MA (PRWEB) , ... December 02, 2016 , ... ... of Light Event on December 3rd, 2016. The event, which is held on ... NTI’s work with helping Americans with Disabilities back into the workplace. Suitable Technologies is ...
(Date:11/30/2016)...  GenomOncology today announced the appointment of Joshua F. ... Dr. Coleman will oversee clinical content development and ... The GenomOncology software suite empowers molecular pathologists with a seamless ... decision support, from quality control through reporting. ... , , ...
(Date:11/30/2016)... -  Equicare Health Inc ., the leading supplier of ... of the top 100 companies in the 2016 Global ... the top digital health companies across the globe.   ... year continually upgrading our product with the ongoing digital ... says Len Grenier , CEO of Equicare Health, ...
Breaking Biology Technology: