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

Dolomite to launch Meros TCU-100 temperature controller at Lab-on-a-Chip & Microarray World Congress September 15th, 2014

Fonon at Cutting-Edge of 3D Military Printing: Live-Combat Scenarios Could See a Decisive Advantage with 3D Printing September 15th, 2014

Rice rolls 'neat' nanotube fibers: Rice University researchers' acid-free approach leads to strong conductive carbon threads September 15th, 2014

Simple, Cost-Effective Method Proposed for Synthesizing Zinc Oxide Nanopigments September 15th, 2014

Chip Technology

UT Arlington research uses nanotechnology to help cool electrons with no external sources September 11th, 2014

Excitonic Dark States Shed Light on TMDC Atomic Layers: Berkeley Lab Discovery Holds Promise for Nanoelectronic and Photonic Applications September 11th, 2014

Researchers Create World’s Largest DNA Origami September 11th, 2014

Development of Algorithm for Accurate Calculation of Average Distance Travelled by Low-Speed Electrons without Energy Loss that Are Sensitive to Surface Structure September 11th, 2014

Nanomedicine

Treatment of Cell Infection by Nanotechnology September 15th, 2014

Researchers Create World’s Largest DNA Origami September 11th, 2014

Iranian Scientists Discover Nanotechnology Method to Remove Limitations in Tumor Surgery September 11th, 2014

Iranian Nanotechnology Scientists Produce Polymeric Scaffolds for Tissue Engineering September 11th, 2014

Sensors

Simple, Cost-Effective Method Proposed for Synthesizing Zinc Oxide Nanopigments September 15th, 2014

First Colloid and Polymer Science Lecture awarded to Orlin D. Velev: Chemical engineer honored for outstanding research in colloid science September 12th, 2014

UT Arlington research uses nanotechnology to help cool electrons with no external sources September 11th, 2014

Development of Algorithm for Accurate Calculation of Average Distance Travelled by Low-Speed Electrons without Energy Loss that Are Sensitive to Surface Structure September 11th, 2014

Discoveries

Elusive Quantum Transformations Found Near Absolute Zero: Brookhaven Lab and Stony Brook University researchers measured the quantum fluctuations behind a novel magnetic material's ultra-cold ferromagnetic phase transition September 15th, 2014

'Squid skin' metamaterials project yields vivid color display: Rice lab creates RGB color display technology with aluminum nanorods September 15th, 2014

Rice rolls 'neat' nanotube fibers: Rice University researchers' acid-free approach leads to strong conductive carbon threads September 15th, 2014

Simple, Cost-Effective Method Proposed for Synthesizing Zinc Oxide Nanopigments September 15th, 2014

Announcements

Dolomite to launch Meros TCU-100 temperature controller at Lab-on-a-Chip & Microarray World Congress September 15th, 2014

Fonon at Cutting-Edge of 3D Military Printing: Live-Combat Scenarios Could See a Decisive Advantage with 3D Printing September 15th, 2014

Rice rolls 'neat' nanotube fibers: Rice University researchers' acid-free approach leads to strong conductive carbon threads September 15th, 2014

Simple, Cost-Effective Method Proposed for Synthesizing Zinc Oxide Nanopigments September 15th, 2014

Alliances/Partnerships/Distributorships

NEI Corporation and PneumatiCoat Technologies Sign Agreement to Jointly Develop and Market New Materials for Lithium-ion Batteries September 12th, 2014

Handheld scanner could make brain tumor removal more complete, reducing recurrence September 3rd, 2014

Leading European communications companies and research organizations have launched an EU project developing the future 5th Generation cellular mobile networks August 28th, 2014

JPK expands availability of instrumentation in the USA – appointing new distributors – launched a new web site to support the US market - AFM now available to US users August 26th, 2014

Research partnerships

Elusive Quantum Transformations Found Near Absolute Zero: Brookhaven Lab and Stony Brook University researchers measured the quantum fluctuations behind a novel magnetic material's ultra-cold ferromagnetic phase transition September 15th, 2014

NEI Corporation and PneumatiCoat Technologies Sign Agreement to Jointly Develop and Market New Materials for Lithium-ion Batteries September 12th, 2014

Advanced Light Source Sets Microscopy Record| Berkeley Lab Researchers Achieve Highest Resolution Ever with X-ray Microscopy September 11th, 2014

Researchers Create World’s Largest DNA Origami September 11th, 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