- About Us
- Career Center
- Nano-Social Network
- Nano Consulting
- My Account
|Recording the beats of individual heart cells with tiny implantable devices is getting closer to reality.|
The debut of cyborgs who are part human and part machine may be a long way off, but researchers say they now may be getting closer. In a study published in ACS' journal Nano Letters, they report development of a coating that makes nanoelectronics much more stable in conditions mimicking those in the human body. The advance could also aid in the development of very small implanted medical devices for monitoring health and disease.
Charles Lieber and colleagues note that nanoelectronic devices with nanowire components have unique abilities to probe and interface with living cells. They are much smaller than most implanted medical devices used today. For example, a pacemaker that regulates the heart is the size of a U.S. 50-cent coin, but nanoelectronics are so small that several hundred such devices would fit in the period at the end of this sentence. Laboratory versions made of silicon nanowires can detect disease biomarkers and even single virus cells, or record heart cells as they beat. Lieber's team also has integrated nanoelectronics into living tissues in three dimensions — creating a "cyborg tissue." One obstacle to the practical, long-term use of these devices is that they typically fall apart within weeks or days when implanted. In the current study, the researchers set out to make them much more stable.
They found that coating silicon nanowires with a metal oxide shell allowed nanowire devices to last for several months. This was in conditions that mimicked the temperature and composition of the inside of the human body. In preliminary studies, one shell material appears to extend the lifespan of nanoelectronics to about two years.
The authors acknowledge funding from the National Institutes of Health Director's Pioneer Award and the National Security Science and Engineering Faculty Fellowship.
About American Chemical Society
The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 161,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.
To automatically receive news releases from the American Chemical Society, contact .
Follow us: Twitter | Facebook
For more information, please click here
Charles Lieber, Ph.D.
Department of Chemistry and Chemical Biology
School of Engineering and Applied Science
Cambridge, Mass. 02138
Copyright © American Chemical SocietyIf you have a comment, please Contact us.
Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
|Related News Press|
News and information
Navy researchers recruit luminescent nanoparticles to image brain function November 19th, 2015
Hopes of improved brain implants October 1st, 2015
Nano memory cell can mimic the brain’s long-term memory May 14th, 2015
IU chemists craft molecule that self-assembles into flower-shaped crystalline patterns:'Tricarb' research laid foundation for university's new $1.2 million materials science grant from National Science Foundation December 1st, 2015
Researchers find new phase of carbon, make diamond at room temperature November 30th, 2015
Nanoparticles simplify DNA identification and quantification November 27th, 2015
Scientists 'see' detailed make-up of deadly toxin for the first time: Exciting advance provides hope for developing novel potential method of treating pneumococcal diseases such as bacterial pneumonia, meningitis and septicaemia November 25th, 2015
New Model Presented to Design, Produce Electronic Nanodevices November 6th, 2015
GLOBALFOUNDRIES Achieves 14nm FinFET Technology Success for Next-Generation AMD Products: Leading-edge foundry’s proven silicon technology poised to help enable significant performance and power efficiency improvements for AMD’s next-generation products November 6th, 2015
USF team finds new way of computing with interaction-dependent state change of nanomagnets: University of South Florida engineering researchers find nano-scale magnets could compute complex functions significantly faster than conventional computers October 29th, 2015
Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers
New EU project designed to link diagnosis and treatment of diseases over the long term: Joint research project aims at the improvement of companion diagnostics and therapy of tumor diseases November 23rd, 2015