HOME >> BIOLOGY >> NEWS
Encoded metallic nanowires reveal bioweapons

This press release is also available in German.

When dangerous infectious diseases or biological weapons are suspected, fast help is required. The first step is a reliable, sensitive, and unambiguous, yet also fast and simple, identification of the pathogen; preferably, this test should be carried out on the spot, not in a laboratory. Portable miniature biodetection systems that can detect multiple pathogens simultaneously would be ideal for this task. American researchers from Lawrence Livermore National Laboratory led by Jeffrey Tok, in collaboration with groups at Stanford University, University of California at Davis, and Oxonica Inc (formerly Nanoplex Technologies Inc). have now developed a new basis for such a multiplex device: they are using silver and gold "striped" nanowires as supports for simultaneous immunological tests for various pathogens. Individual patterns of stripes act in the role of "barcodes". These "nanobarcoded" particles are manufactured by Oxonica Inc using template-assisted electrochemical deposition of metals within the tiny cylindrical pores of alumina membranes. When deposited gold and silver are alternated in a defined way, nanowires with different characteristic stripe patterns are produced. The pattern of optical reflections from each sequence of stripes can later be unambiguously recognized--just like a barcode.

Antibodies aimed at specific pathogens can be attached to these wires. For their test runs, Tok and his colleagues selected harmless model substances to stand in for anthrax spores, smallpox virus, and protein toxins such as ricin and botulinum toxin. If a simultaneous test for all of these is desired, the anthrax antibody would be attached to stripe pattern 1, the smallpox antibodies to stripe pattern 2, and the toxin antibodies to stripe pattern 3, for example. If the corresponding model pathogen is prese
'"/>

Contact: Jeffrey B.-H. Tok
tok2@llnl.gov
925-423-1549
John Wiley & Sons, Inc.
10-Aug-2006


Page: 1 2

Related biology news :

1. Discovery of new family of pseudo-metallic chemicals
2. Programming organic transistors with light; the unusual origin of peacock brown; rotating nanowires
3. Study begins to reveal clues to the cause and progression of sepsis
4. Satellite tracking reveals threats to Borneo pygmy elephants
5. New technology reveals seal behavior
6. Universes stringy birth revealed by young Czech scientist in EURYI winning project
7. Discredited Korean embryonic stem cells true origins revealed
8. New data reveal pregnancies exposed to accutane despite risk management program
9. Innovative research technique reveals another natural wonder in Yellowstone Park
10. Limpets reveal possible fate of cold-blooded Antarctic animals
11. Satellite images reveal link between urban growth and changing rainfall patterns

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/6/2019)... ... June 05, 2019 , ... ... exclusive financial advisor to Pathologists Bio-Medical Laboratories (PBM) on its recent acquisition by ... pathology platform that provides services to more than one dozen hospitals and surgery ...
(Date:6/4/2019)... ... 04, 2019 , ... Most preclinical EEG visualization platforms offer ... usually based on variations of amplitude, frequency or spike train detection. In the ... to the complexity and variability of the signal, and automation tools are used ...
(Date:5/31/2019)... ... May 29, 2019 , ... FileWave, ... and mobile, announces the launch of version 13.1. The new version extends FileWave’s ... API, and supports Apple’s spring release functionality. Version 13.1 builds on FileWave’s version ...
Breaking Biology News(10 mins):
(Date:5/31/2019)... ... 29, 2019 , ... For many years, the primary forms of cancer treatment ... therapies. Advances in immuno-oncology have led to the advent of Chimeric Antigen Receptor T ... cell receptors known as “CARs”. The CAR enables the final product to produce chemicals ...
(Date:5/31/2019)... ... May 30, 2019 , ... Object ... announce the strategic acquisition of Metabiologics, Inc., a globally recognized leader in the ... ownership and commercialization rights to a full spectrum of botulinum neurotoxins, as well ...
(Date:5/21/2019)... ... May 21, 2019 , ... DuPont Nutrition & Biosciences (DuPont) ... Africa Brewing Conference dedicated to sharing brewing knowledge, strengthening relationships and discussing best ... supported through a partnership with “Ethiopia Invest”, will run through May 23, 2019, ...
(Date:5/14/2019)... EGG HARBOR TOWNSHIP, N.J. (PRWEB) , ... May ... ... premier manufacturer of custom built, helium-based leak testing instruments for the Pharmaceutical, Biotechnology, ... a completely new Heliumleak.com company website. The redesigned website aims to improve LDA’s ...
Breaking Biology Technology:
Cached News: