Navigation Links
New material could improve safety for first responders to chemical hazards
Date:5/1/2011

A new kind of sensor could warn emergency workers when carbon filters in the respirators they wear to avoid inhaling toxic fumes have become dangerously saturated.

In a recent issue of the journal Advanced Materials, a team of researchers from the University of California, San Diego and Tyco Electronics describe how they made the carbon nanostructures and demonstrate their potential use as microsensors for volatile organic compounds.

First responders protect themselves from such vapors, whose composition is often unknown, by breathing through a canister filled with activated charcoal a gas mask. Airborne toxins stick to the carbon in the filter, trapping the dangerous materials.

As the filters become saturated, chemicals will begin to pass through. The respirator can then do more harm than good by providing an illusion of safety. But there is no easy way to determine when the filter is spent. Current safety protocols base the timing of filter changes on how long the user has worn the mask.

"The new sensors would provide a more accurate reading of how much material the carbon in the filters has actually absorbed," said team leader Michael Sailor, professor of chemistry and biochemistry and bioengineering at UC San Diego. "Because these carbon nanofibers have the same chemical properties as the activated charcoal used in respirators, they have a similar ability to absorb organic pollutants."

Sailor's team assembled the nanofibers into repeating structures called photonic crystals that reflect specific wavelengths, or colors, of light. The wing scales of the Morpho butterfly, which give the insect its brilliant iridescent coloration, are natural examples of this kind of structure.

The sensors are an iridescent color too, rather than black like ordinary carbon. That color changes when the fibers absorb toxins a visible indication of their capacity for absorbing additional chemicals.

The age
'/>"/>

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

Page: 1 2

Related biology technology :

1. China Green Material Technologies, Inc. Announces Change of Auditor to Marcum Bernstein & Pinchuk LLP
2. Keynote Announced for Virtual Event: Developments in Materials for Medical Applications
3. Grove School professor leads new metamaterials center
4. China Green Material Technologies, Inc. Reports 2010 Financial Results
5. Researchers find replacement for rare material indium tin oxide
6. New materials based on carbon nanoparticles
7. MEMS Materials and Processes Handbook -- a comprehensive, practical resource
8. Search for advanced materials aided by discovery of hidden symmetries in nature
9. MIT engineers devise new way to inspect materials used in airplanes
10. Only the weak survive?: Pitt team adds more give for stronger self-healing materials
11. Argentum Medical Issues Response to Recent Decision in Litigation With Noble Biomaterials
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New material could improve safety for first responders to chemical hazards
(Date:10/30/2014)... 30, 2014 Isis Pharmaceuticals, Inc. (NASDAQ: ... management will present a company overview at the Nomura Biotechnology ... in Boston, MA. A ... "Investors & Media" section of the Company,s website, www.isispharm.com ... within 48 hours and will be archived for a limited ...
(Date:10/27/2014)... Ryan Carfley , Managing Partner at ... with Bryan Hamilton, the publisher of the Triangle Business Journal, ... the Research Triangle region of North Carolina. , Just a ... roundtable include the role of social media in recruitment, ... and the unique role that Millennials play in the workplace ...
(Date:10/27/2014)... The “Molecular Diagnostic Market by Application (Infectious ... Sequencing), End User (Hospital, Laboratories), & by Product ... 2018” provides a detailed overview of the major ... strategies impacting the global molecular diagnostics market along ... and share analysis. , The global molecular diagnostics ...
(Date:10/27/2014)... HORSHAM, Pa. , Oct. 27, 2014 /PRNewswire/ ... Colitis Foundation of America (CCFA) announced today the ... , an educational campaign designed ... bowel diseases (IBD) on the paired role of ... To view the multimedia assets associated with ...
Breaking Biology Technology:Isis Pharmaceuticals to Present at the Nomura Biotechnology Conference 2Personify's Ryan Carfley Talks Recruiting with Triangle Business Journal, RPG Solutions 2Personify's Ryan Carfley Talks Recruiting with Triangle Business Journal, RPG Solutions 3Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 2Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 3Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 4Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 5Celebrity Cook Sunny Anderson Teams Up With Janssen And Crohn's & Colitis Foundation Of America To Launch Educational Campaign 2Celebrity Cook Sunny Anderson Teams Up With Janssen And Crohn's & Colitis Foundation Of America To Launch Educational Campaign 3Celebrity Cook Sunny Anderson Teams Up With Janssen And Crohn's & Colitis Foundation Of America To Launch Educational Campaign 4
... Structural Analysis of Glycosylated Peptides in Complex Mixtures with , Ion ... , , Shiaw-Lin Wu, Pavel Bondarenko, Tom Shaler, , ... , , , Protein Glycosylation , ... acquired using , any Thermo Finnigan LCQTMion trap mass spectrometer with MS n ...
... , , , Andreas Hhmer, Helen Tran, and William , ... , , Protein Oxidation , ... trap mass spectrometer with MS n capability. , ... Calmodulin (CaM) is the primary high-affinity Ca 2+ -binding protein , ...
... , , , , , ... cultures , requires double-stranded molecules known as short interfering ... siRNA, offering a custom , siRNA oligonucleotide synthesis ... common target genes, and a Cancer , siRNA ...
Cached Biology Technology:Structural Analysis of Glycosylated Peptides in Complex Mixtures with , Ion Trap MSn 2Structural Analysis of Glycosylated Peptides in Complex Mixtures with , Ion Trap MSn 3Structural Analysis of Glycosylated Peptides in Complex Mixtures with , Ion Trap MSn 4Structural Analysis of Glycosylated Peptides in Complex Mixtures with , Ion Trap MSn 5Structural Analysis of Glycosylated Peptides in Complex Mixtures with , Ion Trap MSn 6Identification of Low-Level Oxidation Products in Calmodulin Using NanoSpray , Ion Trap Mass Spectrometry 2Identification of Low-Level Oxidation Products in Calmodulin Using NanoSpray , Ion Trap Mass Spectrometry 3Identification of Low-Level Oxidation Products in Calmodulin Using NanoSpray , Ion Trap Mass Spectrometry 4Identification of Low-Level Oxidation Products in Calmodulin Using NanoSpray , Ion Trap Mass Spectrometry 5Identification of Low-Level Oxidation Products in Calmodulin Using NanoSpray , Ion Trap Mass Spectrometry 6RNAi Gene Silencing System 2RNAi Gene Silencing System 3
(Date:10/29/2014)... is open for the Society of Interventional ... 2015 is the one place where interventional ... health care professionals can come together to ... technologies being presented, discussed and tested. ... invasive, image-guided medicine, SIR 2015 will feature ...
(Date:10/29/2014)... a ceremony held in New York City on September ... the American Cancer Society Professor of Genome Sciences and ... 2008 Honorary Doctor of Philosophy of Tel Aviv University, ... Medical Science. , In addition to her honorary degree ... at the TAU School of Medicine, and for the ...
(Date:10/29/2014)... 27, 2014 — Cambridge, MA and Hebei, China — ... complete, high quality sequencing of the Jujube genome. Jujube ... family, and the Jujube genome is particularly difficult to ... complicating factors. It is the first time that a ... This study has been recently published in ...
Breaking Biology News(10 mins):SIR 2015: Interventional radiology shapes tomorrow's medicine 2Geneticist and humanitarian: Prof. Mary-Claire King receives Lasker Award 2BGI Tech and Hebei Agricultural University complete the genome sequencing of the jujube tree 2
... Aquaculture production of seafood will probably remain the ... according to an assessment published in the January 2009 ... S. Diana of the University of Michigan at Ann ... harmful effects of aquaculture, the technique may, when practiced ...
... Yan Liu imagine and assemble intricate structures on a ... DNA molecule, a versatile building material offering near limitless ... issue of Science , Yan and Liu, researchers ... of Chemistry and Biochemistry, reveal for the first time ...
... Hopkins neuroscientists has worked out how some newly discovered ... with the brain. The report appears online this week ... are a small number of nerve cells in the ... in the retinarods and conesmelanopsin-containing cells are not used ...
Cached Biology News:Aquaculture's growth seen as continuing 2The gold standard: Biodesign Institute researchers use nanoparticles to make 3-D DNA nanotubes 2The gold standard: Biodesign Institute researchers use nanoparticles to make 3-D DNA nanotubes 3Bright lights, not-so-big pupils 2Bright lights, not-so-big pupils 3
... ,Schistosomal glutathione-S-transferase (GST) is commonly used as ... E. coli (1). The GSTTag sequence has ... in some cases the solubility of its ... properly folded form, GSTTag fusion proteins can ...
... The Bio-Stack is compatible with BioTeks ... Speed, ease of use and walkaway ... microplate process. When used with the ... dispenser, the Bio-Stacks small footprint fits ...
... for the use of small interfering RNA ... the RNA interference,(RNAi) pathway have generated tremendous ... fields. siRNA for experimental use can be,synthesized ... then transfected into the target cells in ...
... Array Service enables scientists who have access to ... FAST Slides printed with proteins from S&Ss antibody ... the arrays is performed by the customer. Its ... discuss your needs with an expert and define ...
Biology Products: