Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

UTSA study describes new minimally invasive device to treat cancer and other illnesses: Medicine diffusion capsule could locally treat multiple ailments and diseases over several weeks December 3rd, 2016

Novel Electrode Structure Provides New Promise for Lithium-Sulfur Batteries December 3rd, 2016

Research Study: MetaSOLTM Shatters Solar Panel Efficiency Forecasts with Innovative New Coating: Coating Provides 1.2 Percent Absolute Enhancement to Triple Junction Solar Cells December 2nd, 2016

Deep insights from surface reactions: Researchers use Stampede supercomputer to study new chemical sensing methods, desalination and bacterial energy production December 2nd, 2016

Chip Technology

Quantum obstacle course changes material from superconductor to insulator December 1st, 2016

Bumpy surfaces, graphene beat the heat in devices: Rice University theory shows way to enhance heat sinks in future microelectronics November 29th, 2016

Scientists shrink electron gun to matchbox size: Terahertz technology has the potential to enable new applications November 25th, 2016

Uncovering the secrets of friction on graphene: Sliding on flexible graphene surfaces has been uncharted territory until now November 23rd, 2016

Nanomedicine

UTSA study describes new minimally invasive device to treat cancer and other illnesses: Medicine diffusion capsule could locally treat multiple ailments and diseases over several weeks December 3rd, 2016

Nanobiotix Provides Update on Global Development of Lead Product NBTXR3: Seven clinical trials across the world: More than 2/3 of STS patients recruited in the “act.in.sarc” Phase II/III trial: Phase I/II prostate cancer trial now recruiting in the U.S. November 28th, 2016

From champagne bubbles, dance parties and disease to new nanomaterials: Understanding nucleation of protein filaments might help with Alzheimer's Disease and type 2 Diabetes November 24th, 2016

Nanopolymer-modified protein array can pinpoint hard-to-find cancer biomarker November 17th, 2016

Sensors

Deep insights from surface reactions: Researchers use Stampede supercomputer to study new chemical sensing methods, desalination and bacterial energy production December 2nd, 2016

Tip-assisted chemistry enables chemical reactions at femtoliter scale November 16th, 2016

'Back to the Future' inspires solar nanotech-powered clothing November 15th, 2016

Engineers develop new magnetic ink to print self-healing devices that heal in record time November 7th, 2016

Discoveries

UTSA study describes new minimally invasive device to treat cancer and other illnesses: Medicine diffusion capsule could locally treat multiple ailments and diseases over several weeks December 3rd, 2016

Novel Electrode Structure Provides New Promise for Lithium-Sulfur Batteries December 3rd, 2016

Research Study: MetaSOLTM Shatters Solar Panel Efficiency Forecasts with Innovative New Coating: Coating Provides 1.2 Percent Absolute Enhancement to Triple Junction Solar Cells December 2nd, 2016

Deep insights from surface reactions: Researchers use Stampede supercomputer to study new chemical sensing methods, desalination and bacterial energy production December 2nd, 2016

Announcements

UTSA study describes new minimally invasive device to treat cancer and other illnesses: Medicine diffusion capsule could locally treat multiple ailments and diseases over several weeks December 3rd, 2016

Novel Electrode Structure Provides New Promise for Lithium-Sulfur Batteries December 3rd, 2016

Research Study: MetaSOLTM Shatters Solar Panel Efficiency Forecasts with Innovative New Coating: Coating Provides 1.2 Percent Absolute Enhancement to Triple Junction Solar Cells December 2nd, 2016

Deep insights from surface reactions: Researchers use Stampede supercomputer to study new chemical sensing methods, desalination and bacterial energy production December 2nd, 2016

Alliances/Trade associations/Partnerships/Distributorships

Leti and Grenoble Partners Demonstrate World’s 1st Qubit Device Fabricated in CMOS Process: Paper by Leti, Inac and University of Grenoble Alpes Published in Nature Communications November 28th, 2016

Mechanism for sodium storage in 2-D material: Tin selenide is an effective host for storing sodium ions, making it a promising material for sodium ion batteries October 27th, 2016

Enterprise In Space Partners with Sketchfab and 3D Hubs for NewSpace Education October 13th, 2016

Arrowhead and Spring Bank Announce Clinical Collaboration for ARC-520 and SB 9200 in Chronic Hepatitis B October 6th, 2016

Research partnerships

Deep insights from surface reactions: Researchers use Stampede supercomputer to study new chemical sensing methods, desalination and bacterial energy production December 2nd, 2016

Quantum obstacle course changes material from superconductor to insulator December 1st, 2016

Novel silicon etching technique crafts 3-D gradient refractive index micro-optics November 28th, 2016

Single photon converter -- a key component of quantum internet November 28th, 2016

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