Navigation Links
Tiny sensors tucked into cell phones could map airborne toxins in real time
Date:5/13/2010

A tiny silicon chip that works a bit like a nose may one day detect dangerous airborne chemicals and alert emergency responders through the cell phone network.

If embedded in many cell phones, its developers say, the new type of sensor could map the location and extent of hazards like gas leaks or the deliberate release of a toxin.

"Cell phones are everywhere people are," said Michael Sailor, professor of chemistry and biochemistry at the University of California, San Diego who heads the research effort. "This technology could map a chemical accident as it unfolds."

In collaboration with Rhevision, Inc., a small startup company located in San Diego, Sailor's research group at UCSD has successfully finished the first phase of development of the sensor and have begun to work on a prototype that will link to a cell phone.

The sensor, a porous flake of silicon, changes color when it interacts with specific chemicals. By manipulating the shape of the pores, the researchers can tune individual spots on the silicon flake to respond to specific chemical traits.

"It works a little like our nose," Sailor said. "We have a set of sensory cells that detect specific chemical properties. It's the pattern of activation across the array of sensors that the brain recognizes as a particular smell. In the same way, the pattern of color changes across the surface of the chip will reveal the identity of the chemical."

Already their chips can distinguish between methyl salicylate, a compound used to simulate the chemical warfare agent mustard gas, and toluene, a common additive in gasoline. Potentially, they could discriminate among hundreds of different compounds and recognize which might be harmful.

A megapixel camera smaller than the head of a pencil eraser captures the image from the array of nanopores in Sailor's chip.

To focus on the fine-scale detail in their optical array, the team uses a new kind
'/>"/>

Contact: Michael Sailor
scinews@ucsd.edu
University of California - San Diego
Source:Eurekalert  

Page: 1 2

Related biology news :

1. UCLA researchers show how worlds smallest coffee ring may help biosensors detect disease
2. Conference to discuss future of nanotechnology enabled sensors
3. New biosensors reveal workings of anti-psychotic drugs in the living brain
4. Scientists use nanosensors for first time to measure cancer biomarkers in blood
5. SRNL, automakers to develop high-performance wireless sensors networks
6. New way to make sensors that detect toxic chemicals
7. Uncooperative voltage sensors
8. A London effort to develop point-of-care nanosensors for HIV diagnosis and monitoring
9. Researchers develop flow sensors based on hair structures of blind cavefish
10. Clemson researchers advance nano-scale electromechanical sensors
11. Photonic crystal biosensors detect protein-DNA interactions
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Tiny sensors tucked into cell phones could map airborne toxins in real time
(Date:10/17/2014)... is critical and pertinent for practicing physicians and clinicians ... epidemic. The Journal, Disaster Medicine and Public Health ... and Public Health, to surround the public, medical professionals ... moment. , On October 17, the journal published ... primer was prepared by Dr. Eric Toner, internist and ...
(Date:10/16/2014)... of Marine Science have received a 3-year, $392,773 ... the streams and wetlands most vulnerable to sea-level ... governments and citizens conserve these important ecosystems. , ... tidal-marsh observations first gathered by VIMS scientists in ... today,s researchers accurately map the slow but inexorable ...
(Date:10/16/2014)... – Post-menopausal women experienced improvements in vaginal atrophy, ... genital bleeding, after 12 weeks of daily 10 ... germ-based nutritional supplement previously shown to help relieve ... pilot study reported in a poster at the ... , "These data documented improved vaginal epithelium, ...
Breaking Biology News(10 mins):EPA grant will help localities conserve headwater wetlands 2EPA grant will help localities conserve headwater wetlands 3S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2
... (December 5, 2013) For discoveries about how the brain ... the foundation of memoryColumbia University will award the 2013 Louisa ... Moser, PhD, of the Norwegian University of Science and Technology ... London in the UK. Their work, conducted in animal models, ...
... ITHACA, N.Y. Despite widespread fascination with sharks, the world,s ... first deep dive into a great white shark,s genetic code ... it has barely changed since before dinosaurs roamed. Cornell ... shark,s proteins involved in an array of different functions ...
... A new method to identify previously hidden details about ... novel drug design, according to scientists at Rice University. ... data helped Rice theorists predict intermediate configurations of proteins ... The work should be significant for pharmaceutical companies ...
Cached Biology News:Columbia's 2013 Horwitz Prize awarded for discoveries that could lead to new Alzheimer's treatments 2Columbia's 2013 Horwitz Prize awarded for discoveries that could lead to new Alzheimer's treatments 3Columbia's 2013 Horwitz Prize awarded for discoveries that could lead to new Alzheimer's treatments 4Columbia's 2013 Horwitz Prize awarded for discoveries that could lead to new Alzheimer's treatments 5New genetic research finds shark, human proteins stunningly similar 2Proteins' passing phases revealed 2Proteins' passing phases revealed 3
(Date:10/20/2014)... 20, 2014 The report “Pharmacy ... Systems, Packaging and Labeling Systems, Table-top Counters) by ... Global Forecasts & Trends to 2019” analyzes and ... in North America, Europe, Asia-Pacific, and the Rest ... tables and 30 figures spread through 300 pages ...
(Date:10/20/2014)... 20, 2014 Convey Computer , ... team from Iowa State University won first place in ... a Convey HC-2ex, the team’s solution achieved the highest ... than the second place finisher. , Experts from all ... the month long challenge, using a variety of design ...
(Date:10/20/2014)... 2014 /PRNewswire/ - BIOREM Inc. (TSXV: BRM) ("Biorem" or "the Company") ... orders to $5.8 million and provides a good start to Q4.  ... North America and one in the Middle ... at record levels," said Peter Bruijns , President & CEO. ... of Q3 than they have been for any complete year since ...
(Date:10/20/2014)... , Oct. 20, 2014  GenVec, Inc. (NASDAQ: ... Horovitz , Ph.D., from its board of directors effective on ... August 2003, and served as its chairman from June 2006 ... the Nominating and Corporate Governance and Audit Committees of the ... than a decade of dedicated service to GenVec, and its ...
Breaking Biology Technology:Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 2Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 4Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 2Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 3Zola P. Horovitz To Retire From GenVec Board 2
... STAAR Surgical Company (Nasdaq: STAA ), a ... products, today announced that it has received CE Mark ... use in minimally invasive cataract surgical procedures. The ... intraocular (IOL) KS-X lens delivery system in the European ...
... ... Matrix Genomics, Inc. have identified a concise genetic signature found among a third of Parkinson,s ... is found in the LRRK2 gene located on chromosome 12. The work was led by ... ...
... Bioscience International, a leader in enabling and accelerating the ... China, today announced a strategic drug co-development partnership with ... range of therapeutic areas and represents one of the ... biotech company and a Chinese university. , , ...
Cached Biology Technology:STAAR Surgical Receives CE Mark Approval for KS-X Preloaded Hydrophobic Acrylic Lens Injector System 2STAAR Surgical Receives CE Mark Approval for KS-X Preloaded Hydrophobic Acrylic Lens Injector System 3STAAR Surgical Receives CE Mark Approval for KS-X Preloaded Hydrophobic Acrylic Lens Injector System 4Matrix Genomics, Elizabeth Corder, PhD - Gene Variation in the LRRK2 Gene and High Risk for Parkinson's Disease 2Matrix Genomics, Elizabeth Corder, PhD - Gene Variation in the LRRK2 Gene and High Risk for Parkinson's Disease 3HUYA Bioscience Announces Strategic Collaboration With the Shenyang Pharmaceutical University 2HUYA Bioscience Announces Strategic Collaboration With the Shenyang Pharmaceutical University 3