Navigation Links
New way to make sensors that detect toxic chemicals
Date:8/14/2009

COLUMBUS, Ohio -- Ohio State University researchers have developed a new method for making extremely pure, very small metal-oxide nanoparticles.

They are using this simple, fast, and low-temperature process to make materials for gas sensors that detect toxic industrial chemicals (TICs) and biological warfare agents.

The researchers described their work in a recent issue of the journal Materials Chemistry and Physics.

Patricia Morris, associate professor of materials science and engineering at Ohio State, leads a team of researchers who develop solid materials that can detect toxic chemicals.

The challenge, she said, is to design a material that reacts quickly and reliably to a variety of chemicals, including TICs, when incorporated into a sensor.

"These are sensors that a soldier could wear on the battlefield, or a first responder could wear to an accident at a chemical plant," Morris said.

The material under study is nickel oxide, which has unusual electrical properties. Other labs are studying nickel oxide for use in batteries, fuel cells, solar cells, and even coatings that change color.

But Morris, along with Ohio State doctoral student Elvin Beach, is more interested in how nickel oxide's electrical conductance changes when toxic chemicals in the air settle on its surface. Beach applies a thin coating of the material onto microelectro-mechanical systems (made in a similar fashion to computer chips), with a goal of identifying known toxic substances.

The design works on the same general principle as another, much more familiar sensor.

"The human nose coordinates signals from hundreds of thousands of sensory neurons to identify chemicals," Beach said. "Here, we're using a combination of electrical responses to identify the signature of a toxic chemical."

The key to making the sensor work is how the nickel oxide particles are made. Beach and Morris have devised a
'/>"/>

Contact: Patricia Morris
Morris.692@osu.edu
614-247-8873
Ohio State University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Catching the lightwave: Nano-mechanical sensors wired by photonics
2. Connecting Materials Science With Biology, K-State Engineers Create DNA Sensors That Could Identify Cancer Using Material Only One Atom Thick
3. Fitting pieces for biosensors
4. Innovative Biosensors and ProGenTech Partner to Develop a Rapid Diagnostics System
5. Clemson researchers advance nanoscale electromechanical sensors
6. Clemson researchers advance nanoscale electromechanical sensors
7. Winning University of Melbourne Ph.D. research boosts the search for sensitive sensors
8. Finesse Solutions Launches Improved E-Store for Sensors and Transmitters
9. Nanoscience Instruments, Inc. Announces Distribution of Nascatec's Complete Line of Unique AFM Probes and Sensors
10. Commencement 2008: Student innovation could improve data storage, magnetic sensors
11. Nanotube production leaps from sooty mess in test tube to ready formed chemical microsensors
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/28/2014)... 28, 2014 The American Association ... University’s School of Nursing with a very prestigious ... program. The 2014 Innovations in Professional Nursing Education ... schools and supports them as they re-envision traditional ... at AACN’s annual meeting in Washington, D.C. to ...
(Date:11/27/2014)... Research and Markets  has announced the ... 2014" report to their offering. ... Acid Industry Report 2014 is a professional and in-depth ... acid industry. The report provides a basic ... industry chain structure. The palmitic acid market analysis is ...
(Date:11/27/2014)... -- Calcivis, a medical devices company ... today announces that it has completed a first ... System. The Calcivis Caries Activity Imaging ... combination designed to transform the assessment and management ... unique, proprietary bioluminescence approach combined with a specialised ...
(Date:11/26/2014)... 26, 2014 The report on the ... segments the concerned market for revenue forecasts and market ... CAGR of 51.9% from 2013 to 2018. At the ... value of $1,415.6 million by 2018. , Browse through ... TOC for information about the market segmentation and in-depth ...
Breaking Biology Technology:American Association of Colleges of Nursing honors Fairfield University’s School of Nursing for Re-envisioning Nursing Education 2Global Palmitic Acid Industry Report 2014 2Calcivis Completes Clinical Study of Novel Caries Activity Imaging System 2Calcivis Completes Clinical Study of Novel Caries Activity Imaging System 3Global Smart Sensor Market in Building Automation is expected to reach a value of $1,415.6 million by 2018 - Report by MicroMarket Monitor 2Global Smart Sensor Market in Building Automation is expected to reach a value of $1,415.6 million by 2018 - Report by MicroMarket Monitor 3Global Smart Sensor Market in Building Automation is expected to reach a value of $1,415.6 million by 2018 - Report by MicroMarket Monitor 4
... VIENNA, Austria, November 28 f-star, an antibody,engineering company ... Modular Antibody Technology, today announced that it,has raised EUR ... of its Series,A financing round, originally co-led by Aescap ... raised in the Series A round,increases to EUR 9.0 ...
... 1-41 has significant ... and anti-amnesic benefits, GENEVA, Nov. 28 /PRNewswire-FirstCall/ - ... announce promising developments with,ANAVEX 1-41, the company,s lead drug ... 1-41 prevented oxidative stress,which damages and destroys cells and ...
... November 28 The results of a,study on ... desensitisation product, which is due to receive German ... VO52.06, which was carried out on 280,patients in ... the main evaluation criterion by,demonstrating a statistically significant ...
Cached Biology Technology:Antibody Engineering Company f-star Raises EUR 3.0 Million in a Second Closing of its Series A Financing Round From Novo A/S 2Antibody Engineering Company f-star Raises EUR 3.0 Million in a Second Closing of its Series A Financing Round From Novo A/S 3Anavex advances drug candidate for treatment of Alzheimer's disease 2Anavex advances drug candidate for treatment of Alzheimer's disease 3Anavex advances drug candidate for treatment of Alzheimer's disease 4Anavex advances drug candidate for treatment of Alzheimer's disease 5STALLERGENES: ORALAIR Grasses: Positive Results of VO52.06 Paediatric Study 2
(Date:11/4/2014)... PA) – Temple University School of Medicine announced ... winner, an initiative funded by the Bill & ... Professor of Obstetrics, Gynecology and Reproductive Sciences; and ... Temple University School of Medicine will pursue an ... "Maternal Blood Biomarkers to Assess Fetal Neurodevelopment.", Grand ...
(Date:11/4/2014)... 4, 2014   ...   Fuel3D , a developer of 3D ... round totaling $6.4 million (£4 million). This funding builds on ... this year and paves the way for the commercial launch ... The funding round was led by Chimera Partners and will ...
(Date:11/3/2014)... Research and Markets has announced the addition of a ... to their offering. This report describes ... started to play an important role in the practice of ... bone marrow transplants. Role of cells in drug discovery is ... of medical practice. Stem cells are discussed in ...
Breaking Biology News(10 mins):Temple University School of Medicine receives Grand Challenges Explorations grant 2Fuel3D Secures $6.4 Million in Expansion Funding 2Fuel3D Secures $6.4 Million in Expansion Funding 3Global Cell Therapy - Technologies, Markets and Companies: 2014 Report 2Global Cell Therapy - Technologies, Markets and Companies: 2014 Report 3
... (March 18, 2009) As any parent knows, children ... University of Washington and the Monell Center indicates that ... and is related to children,s high growth rate. ... sense because when growth is rapid, caloric demands increase. ...
... Mrs. Bruce Reid recorded seeing both a male and ... 1938, Oscar McKinley Bryans observed a ruby-throated hummingbird in ... apple trees were blooming. These are just two of ... on notecards in government files. The cards record more ...
... 2009 Dr. Daniel Von Hoff, Physician-In-Chief of the ... recognizing his achievements in cancer research. Dr. Von ... Clinical Research Services at Scottsdale Healthcare, will be recognized ... special report this month in Arizona Business Magazine. ...
Cached Biology News:Liking sweets makes sense for kids 2It's for the birds 2It's for the birds 3TGen's Dr. Von Hoff wins award for cancer research 2
Human PDGF R beta MAb (Clone # PR7212)...
Zebrafish Ephrin-B2 Biotinylated Affinity Purified PAb...
Collected from 8-12 week old New Zealand or Californian rabbits. Aseptically collected and processed to minimize hemolytic activity. Pricing: $60/unit for 1 - 10 units...
One-step, microplate or cuvet, colorimetric, detection range 0.3 g/dL to 5 g/dL. Procedure: 5 min....
Biology Products: