Navigation Links
Engineers fine-tune the sensitivity of nano-chemical sensor
Date:5/8/2013

Salehi-Khojin said.

The researchers tested the sensor layer by layer. They found that pristine graphene is insensitive, as they had predicted.

They next set about removing any flaws, or reactive sites called dangling bonds, from the insulating layer. When a pristine insulating layer was tested with pristine graphene, again there was no sensitivity.

"But when dangling bonds were added back onto the insulating layer, we observed a response," said Bijandra Kumar, a post-doctoral research associate at UIC and first author of the Nano Letter study.

"We could now say that graphene itself is insensitive unless it has defects--internal defects on the graphene surface, or external defects on the substrate surface," said UIC graduate student Poya Yasaei.

The finding opens up a new "design space," Salehi-Khojin said. Controlling external defects in the supporting substrates will allow graphene chemFETs to be engineered that may be useful in a wide variety of applications.


'/>"/>

Contact: Jeanne Galatzer-Levy
jgala@uic.edu
312-996-1583
University of Illinois at Chicago
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Stanford engineers use nanophotonics to reshape on-chip computer data transmission
2. Arizona State University engineers aim to improve performance of technology in extreme environments
3. Stanford engineers weld nanowires with light
4. Straintronics: Engineers create piezoelectric graphene
5. Cloak of invisibility: Engineers use plasmonics to create an invisible photodetector
6. Stanford engineers perfecting carbon nanotubes for highly energy-efficient computing
7. Engineers achieve longstanding goal of stable nanocrystalline metals
8. UCLA engineers develop new energy-efficient computer memory using magnetic materials
9. UT Arlington engineers working to prevent heat buildup within 3D integrated circuits
10. Cornell bioengineers discover the natural switch that controls spread of breast cancer cells
11. Forget about leprechauns, engineers are catching rainbows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/1/2014)... Foster City, CA (PRWEB) October 01, 2014 ... century, it leaves no room for doubt that this century ... and innovations in the field of medicine science. The fact ... health problems is not unknown to the scientific community. Almost ... and pollution and therefore can be prevented with medical care ...
(Date:10/1/2014)... BOSTON, MA (PRWEB) September 30, 2014 ... company, SoundConnect announces four new-hosted collaboration ... innovative bundles deliver high quality conferencing experiences for ... collaboration packages to choose from, businesses have optimized ... bundled solutions include audio only minutes ...
(Date:10/1/2014)... October 1, 2014 Industry ... invited to engage around the theme, ,Commercial Opportunities in ...   Elsevier , a world-leading ... services, will host a gathering of some of the ... trends impacting healthcare today and in the future. The ...
(Date:9/30/2014)... Pacific Northwest Biotechnology, LLC - Product ... Markets Direct,s, ,Pacific Northwest Biotechnology, LLC - Product ... the Pacific Northwest Biotechnology, LLC,s pharmaceutical research and ... on the current therapeutic developmental pipeline of Pacific ... various stages, therapeutics assessment by drug target, mechanism ...
Breaking Biology Technology:Fighting Mortality and Morbidity of Chronic Health Disorders during Open Access Week 2Fighting Mortality and Morbidity of Chronic Health Disorders during Open Access Week 3SoundConnect Launches New Audio, Web and Video Bundles 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 3Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 2Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 3
... 18, 2011 Ingenuity® Systems, a leading provider ... Erasmus Medical Center, jointly announced a scientific collaboration ... As part of the collaboration, Erasmus ... derive the most impactful biological insights from their ...
... German . , At the beginning of the ... for use of the first thiol-based self-assembling monolayers (SAMs). Nanotechnology ... now honored with the Research Award of the Alexander von ... of Functional Interfaces (IFG) at KIT and the Bielefeld Institute ...
... Jan. 14, 2011 Dendreon Corporation (Nasdaq: ... offering of $540 million aggregate principal amount of 2.875% ... in an offering registered under the Securities Act of ... from its previously announced $500 million offering.  The Notes ...
Cached Biology Technology:Ingenuity Systems and Erasmus University Medical Center Collaborate on Next-Generation Sequencing Project to Accelerate Disease Research 2New impulses for surface research 2Dendreon Announces Pricing of $540 Million Convertible Senior Notes Due 2016 2Dendreon Announces Pricing of $540 Million Convertible Senior Notes Due 2016 3Dendreon Announces Pricing of $540 Million Convertible Senior Notes Due 2016 4
(Date:9/30/2014)... DURHAM, N.C. -- Pollution in urban and farm runoff ... a new study finds. , The study, published ... shows that nitrogen in the runoff ends up in ... tumors on the animals, eyes, flippers and internal organs. ... and the National Oceanic and Atmospheric Administration (NOAA) conducted ...
(Date:9/30/2014)... your doctor to know what goes wrong with your muscles ... to know what "normal" actually is. That,s where a new ... FASEB Journal comes in. In the ... set of molecules that can help scientists "see" which genes ... more, they found never-before-detected gene activity and that men have ...
(Date:9/30/2014)... 30, 2014  Spectra Automation, a trusted ... biotech and power generation industries, announced today ... Manager, an easy-to-use and cost-effective data collection, ... development laboratories. Most upstream ... analyzer systems. Accessing and consolidating data from ...
Breaking Biology News(10 mins):Pollution linked to lethal sea turtle tumors 2Pollution linked to lethal sea turtle tumors 3Scientists identify which genes are active in muscles of men and women 2Spectra Automation Introduces RECONN Bioprocess Manager 2
... been named among the nation,s most innovative users of ... has been announced and can be viewed at ... the nation,s most innovative users of information technology and ... some of the best-known organizations in the country. Past ...
... With only two weeks to go and almost a ... 2013 have reached their final stages. This year,s conference ... Simons will deliver the opening keynote lecture and explain ... cells work. In further keynote lectures, Hans Clevers will ...
... Sept. 8, 2013 An ambitious partnership among more ... & Gamble,s (P&G,s) nonprofit program, Children,s Safe ... 6 billion quarts of clean drinking water to families ... they,re just getting started. CSDW Manager Allison Tummon ...
Cached Biology News:All set for The EMBO Meeting 2013 2Water-purification plant the size of a fast-food ketchup packet saves lives 2
... I from vaccinia virus is a type ... and negative superhelical turns (also called right- ... The product of the reaction is a ... or negative superhelical turns. DNA Topoisomerase I ...
... The CpGenome Fast DNA Modification Kit contains ... on a DNA sample. In the bisulfite ... sulfonated, converting them to uracils, while 5-methylcytosines ... treated DNA will differ depending on whether ...
... Molecular Probes EnzChek Pyrophosphate Detection ... spectrophotometric,method for measuring the inorganic pyrophosphate ... biochemical reactions, such as DNA and,RNA ... enzyme,adenylate cyclase and the enzymatic activation ...
... high PCR specificity *High PCR specificity ... enzyme with unique QIAGEN PCR Buffer ... provided by the stringent built-in hot ... Master Mix and simple reaction setup ...
Biology Products: