Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Doped diamond structures offer promise for biotech applications

Figure. (a) Micrograph of SGFET source, gate and drain showing passivation openings. (b) Macro photograph of wire bonded device prior to encapsulation. Sample is 2x2 mm. (c) Epoxy encapsulated SGFET. (d) Experimental setup of SGFET using a MESFET analogy, depicting the channel depleted in the saturation regime.
Figure. (a) Micrograph of SGFET source, gate and drain showing passivation openings. (b) Macro photograph of wire bonded device prior to encapsulation. Sample is 2x2 mm. (c) Epoxy encapsulated SGFET. (d) Experimental setup of SGFET using a MESFET analogy, depicting the channel depleted in the saturation regime.

Abstract:
In a collaboration with Waseda University in Tokyo, LCN researchers have grown highly boron doped diamond layers only 1nm in thickness, a technique known as d-doping, for the realisation of high performance field effect transistors (FETs). When used in a novel configuration, where the normal metal gate that controls the transistor is replaced by an ion containing solution, such devices offer the prospect of highly sensitive detection of biochemical agents, or even action potentials from living cells.

Doped diamond structures offer promise for biotech applications

London, UK | Posted on April 28th, 2012

Professor Richard Jackman, who heads the LCNs Diamond Electronics Group, stated "this is the first time that the (111) crystal plane of diamond has been used to generate such heavily doped yet so incredibly thin layers. The resulting transistors offer very good gain and transconductance values when compared to similar devices". The work was performed in a collaboration between the LCN and Professor Kawarada's Diamond Devices team in Japan, with the secondment of Robert Edgington, a PhD student with the LCN team, to Waseda University for five months being made possible through a "Japan Society for the Promotion of Science (JSPS)" award. Robert found the experience valuable beyond just science, "to spend five months immersed in Japanese culture was transforming for me" said Robert, who had the opportunity to practice the Japanese language he had been studying in London prior to his visit. "Diamond surfaces offer a unique platform for chemical functionalisation for the purposes of biosensing" states Professor Jackman, who continued "we have encouraging initial data on the detection of PDGF, a growth factor linked with the promotion of cancer, using aptamers bound to the surface of the gate of the diamond transistor". Robert, who will continue similar work as a Postdoctoral Research Fellow with the UCL Diamond team, added "the work was very hands-on, with the development of diamond growth and doping techniques, the design of FET device structures, and the manipulation of biochemical species, representing a truly interdisciplinary activity".

Boron δ-doped (111) diamond Solution Gate Field Effect Transistors Robert Edgingtona, A. Rahim Ruslindab, Syunsuke Satob, Yuichiro Ishiyamab, Kyosuke Tsugeb, Tasuku Onob, Hiroshi Kawaradab and Richard B. Jackmana*
a London Centre for Nanotechnology, and Department of Electronic and Electrical Engineering, University College London, 17-19 Gordon Street, London, WC1H 0AH, UK
b Department of Electronic and Photonic Systems, Waseda University, Okubo 3-4-1, Shinjuku, Tokyo 169-8555, Japan
* Corresponding author. Tel.: +442076791381; fax: +442076790595 E-mail address: (R. B. Jackman)

####

For more information, please click here

Copyright © London Centre for Nanotechnology

If 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.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Journal link: Biosensors and Bioelectronics (IF 5.63), 33, 152-157 (2012) DOI 10.1016/j.bios.2011.12.044:

Related News Press

News and information

Study finds long-term survival of human neural stem cells transplanted into primate brain April 23rd, 2014

High-Performance, Low-Cost Ultracapacitors Built with Graphene and Carbon Nanotubes: Future devices based on technology could bridge gap between batteries and conventional capacitors in portable electronics and hybrid electric vehicles April 23rd, 2014

Guo Lab Shows Potential of RNA as Heat-resistant Polymer Material for Nanoarchitectures April 23rd, 2014

National Space Society Congratulates SpaceX on the Success of CRS-3 and the First Flight of the Falcon 9R April 22nd, 2014

Chip Technology

Harris & Harris Group Notes the Receipt of Proceeds From the Sale of Molecular Imprints' Semiconductor Business to Canon April 22nd, 2014

Progress made in developing nanoscale electronics: New research directs charges through single molecules April 21st, 2014

'Exotic' material is like a switch when super thin April 18th, 2014

Scientists open door to better solar cells, superconductors and hard-drives: Research enhances understanding of materials interfaces April 14th, 2014

Nanomedicine

Study finds long-term survival of human neural stem cells transplanted into primate brain April 23rd, 2014

Cloaked DNA nanodevices survive pilot mission: Successful foray opens door to virus-like DNA nanodevices that could diagnose diseased tissues and manufacture drugs to treat them April 22nd, 2014

Berkeley Lab Researchers Demonstrate First Size-based Chromatography Technique for the Study of Living Cells April 22nd, 2014

Amino-functionalized carbon nanotubes act as a carrier for nerve growth factor April 21st, 2014

Sensors

Iranian Researchers Present New Model to Strengthen Superconductivity at Higher Temperatures April 19th, 2014

Transparent Conductive Films and Sensors Are Hot Segments in Printed Electronics: Start-ups in these fields show above-average momentum, while companies working on emissive displays such as OLED are fading, Lux Research says April 17th, 2014

Biologists Develop Nanosensors to Visualize Movements and Distribution of Plant Stress Hormone April 15th, 2014

LetiDays Grenoble to Present Multiple Perspectives on Development, Challenges and Markets for the IoT April 14th, 2014

Discoveries

Study finds long-term survival of human neural stem cells transplanted into primate brain April 23rd, 2014

High-Performance, Low-Cost Ultracapacitors Built with Graphene and Carbon Nanotubes: Future devices based on technology could bridge gap between batteries and conventional capacitors in portable electronics and hybrid electric vehicles April 23rd, 2014

Guo Lab Shows Potential of RNA as Heat-resistant Polymer Material for Nanoarchitectures April 23rd, 2014

Berkeley Lab Researchers Demonstrate First Size-based Chromatography Technique for the Study of Living Cells April 22nd, 2014

Announcements

Study finds long-term survival of human neural stem cells transplanted into primate brain April 23rd, 2014

High-Performance, Low-Cost Ultracapacitors Built with Graphene and Carbon Nanotubes: Future devices based on technology could bridge gap between batteries and conventional capacitors in portable electronics and hybrid electric vehicles April 23rd, 2014

Guo Lab Shows Potential of RNA as Heat-resistant Polymer Material for Nanoarchitectures April 23rd, 2014

National Space Society Congratulates SpaceX on the Success of CRS-3 and the First Flight of the Falcon 9R April 22nd, 2014

Alliances/Partnerships/Distributorships

Global leader in solar cell manufacturing eyes New York for major expansion outside of Japan: CNSE and Solar Frontier Explore $700 Million Investment, Job Creation in New York State April 22nd, 2014

ASM International Repositions Brand and Introduces New Logo; Looks to Future of Materials Science Innovation: New logo celebrates organizationís history and provides fresh elements for future growth April 21st, 2014

Virus structure inspires novel understanding of onion-like carbon nanoparticles April 10th, 2014

Peer Reviewed and Approved for Science by the the Washington Academy of Sciences April 3rd, 2014

Research partnerships

University of Waterloo Visits China to Strengthen Bonds With Research Partners April 21st, 2014

Novel stapled peptide nanoparticle combination prevents RSV infection, study finds April 17th, 2014

Scientists Capture Ultrafast Snapshots of Light-Driven Superconductivity: X-rays reveal how rapidly vanishing 'charge stripes' may be behind laser-induced high-temperature superconductivity April 16th, 2014

Scalable CVD process for making 2-D molybdenum diselenide: Rice, NTU scientists unveil CVD production for coveted 2-D semiconductor April 8th, 2014

NanoNews-Digest
The latest news from around the world, FREE







  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE