Navigation Links
DNA sensors found to be an effective artificial nose
Date:1/22/2008

In designing artificial noses modeled after biological olfaction, the challenge has been to generate a similarly large sensor repertoire with the requisite combinatorial complexity to detect odors in the real world. A further requirement is that the sensors can be manufactured with exact chemical precision and reproducibility.

In a new study published this week in the open-access journal PLoS Biology, Joel White, Mary AtKisson, John Kauer and colleagues demonstrate a previously unreported property of deoxyribonucleic acid. The researchers show that single-stranded DNA molecules tagged with a fluorescent reporter and dried onto solid surfaces can respond to vapor phase odor pulses in a sequence-selective manner.

In the context of detecting chemicals in either the aqueous or vapor phase, two general biological approaches have emerged. The first relies on individual, highly specific single receptors (sensors), each tuned to detect a single molecular species. Some examples include the receptors that mediate pheromone detection in insects, or those that function in neurotransmission.

The second approach, represented by the DNA sensors, is implemented by arrays of receptors with relatively broad responses. Here, specificity emerges from a constellation of receptor types that recognizes the molecule of interest. An example is the olfactory receptors in the main olfactory system of vertebrates.

This study not only highlights DNAs potential for use in a novel and powerful odor detection system, but it also highlights its potential to play other novel roles in vivo, for example as a small molecule receptor, well outside of its familiar one as the repository of information in the genome.


'/>"/>

Contact: Natalie Bouaravong
press@plos.org
415-568-3445
Public Library of Science
Source:Eurekalert

Page: 1

Related biology technology :

1. NanoSensors, Inc. Announces Reorganization of Executive Management Team and Redirection of Operations
2. The sensitive side of carbon nanotubes: Creating powerful pressure sensors
3. Purdue creating wireless sensors to monitor bearings in jet engines
4. Model is first to compare performance of biosensors
5. Advanced Energy Consortium will develop micro and nanosensors to boost energy production
6. Biosensors Receives CE Mark Approval for Its BioMatrix(R) Drug-Eluting Coronary Stent System
7. Amyris Biotechnologies Co-Founder Neil Renninger Named to Technology Reviews Prestigious TR35 List of Top Young Innovators
8. PDL BioPharma Announces Internal CEO Investigation Found No Credible Evidence of Improper Personal Conduct or Breach of Fiduciary Duty
9. GeneGo and the Cystic Fibrosis Foundation Collaborate to Advance Understanding of Cystic Fibrosis
10. More Than 230 Cyclists to Ride in Amgen California Coast Classic Bike Tour to Raise $1.3 Million for Arthritis Foundation
11. Founder of ILEX Oncology and Triton Biosciences, Richard Love, Joins Board of Directors of Cell Therapeutics, Inc. (CTI)
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/2/2014)... NC (PRWEB) September 02, 2014 ... of its 11th clinical research site: PMG Research of ... ownership and operation of the clinical research department at ... expanding PMG’s presence in eastern North Carolina. This new ... For the patients in Rocky Mount and the surrounding ...
(Date:9/2/2014)... , September 2, 2014 Culot ... research and lab management services  BioData, producer ... is pleased to announce the appointment of Louis ... recently served as VP Marketing and Business Development at ... research and clinical applications. Previously, Culot worked ...
(Date:9/1/2014)... Reportlinker.com announces that a new market ... India Solid Waste Management Vehicles Market Forecast ... In India ... responsible for complete handling and regulation of solid ... 135,000 MT solid waste is generated daily in ...
(Date:9/1/2014)... 01, 2014 The Collaborative R&D ... report provides comprehensive understanding and unprecedented access to ... by the worlds leading life science companies. , ... of how and why companies enter collaborative R&D ... partner’s negotiated deals terms provides critical insight into ...
Breaking Biology Technology:PMG Research Announces the Formation of its Eleventh Site 2PMG Research Announces the Formation of its Eleventh Site 3Louis Culot Appointed as BioData's CEO 2India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 2India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 3India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 4India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 5India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 6India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 7India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 8Collaborative R&D Terms & Agreements in Pharma, Biotech and Diagnostics Industry Analysis, Size, Share, Growth, Trends And Forecast Research Report by Researchmoz.us 2Collaborative R&D Terms & Agreements in Pharma, Biotech and Diagnostics Industry Analysis, Size, Share, Growth, Trends And Forecast Research Report by Researchmoz.us 3Collaborative R&D Terms & Agreements in Pharma, Biotech and Diagnostics Industry Analysis, Size, Share, Growth, Trends And Forecast Research Report by Researchmoz.us 4
... In the quest to exploit unique properties at ... have developed a novel technique for creating uniform ... and students in the Department of Physics and ... methods from holographic lithography to demonstrate a new ...
... Pharmaceuticals, Inc. (NASDAQ: IDIX ), announced today that ... Stanley Global Healthcare Conference on September 13 at 8:35 a.m. ... the Bank of America Merrill Lynch Global Healthcare Conference on ... of America Merrill Lynch Financial Centre, London.   ...
... Cellectis (Alternext: ALCLS), the French genome engineering specialist, will present at ... September 20, 2011, and at the MidCap Event in Paris on ... will present the activities and the development strategy of the Cellectis ... Hyatt New York hotel on Tuesday, September 20, 2011 at 11:30 ...
Cached Biology Technology:Stevens researchers pioneer novel technique to make plasmonic nanogap arrays 2Stevens researchers pioneer novel technique to make plasmonic nanogap arrays 3
(Date:9/2/2014)... AGU,s blogs: Earthquake rupture through a U.S. suburb ... of California Davis in the hours and days after ... scientists understand why the earthquake caused so much damage ... Trembling Earth blog, hosted by the American Geophysical Union. ... Mars Rovers: The Next Places to Direct Our Curiosity ...
(Date:9/2/2014)... On September 3, The Field Museum will present the ... recognition of his commitment to biodiversity conservation awareness. The ... honor an outstanding individual, team or organization whose efforts ... rich natural heritage and whose actions can serve as ... founder of Mongabay.com, an environmental science and conservation news ...
(Date:9/2/2014)... Bavaria, the Tithonian Konservat-Lagersttte of lithographic limestone is ... of emblematic fossils from that area (for example, ... found fossil insects in the French equivalent of ... species representing the oldest known water treader. , ... Bavarian outcrops, fewer fossils have been obtained from ...
Breaking Biology News(10 mins):This week From AGU: California earthquake, future Mars rovers, models underestimate ozone 2Exceptionally well preserved insect fossils from the Rhône Valley 2
... The work of molecular biologist Joseph M. Miano, ... Miano helps head the Aab Cardiovascular Research Institute and ... and Pediatrics program at the University of Rochester Medical ... was highly unlikely, shared enthusiasm, intense curiosity and a ...
... of researchers from the University of Valladolid (Spain) has analysed ... free iron than pale and non-alcoholic beers. Iron is essential ... compounds that give these beverages stability and flavour. According ... (UVa) on 40 types of beers from all 5 continents, ...
... Scientists at the National Physical Laboratory (NPL) have mimicked ... genetic material. The research hopes to apply the approach ... defective genes such as those that cause cancer. ... challenges around targeting damaged cells and creating corrective genes. ...
Cached Biology News:In quest for new therapies, clinician-scientist team unlocks hidden information in human genome 2In quest for new therapies, clinician-scientist team unlocks hidden information in human genome 3In quest for new therapies, clinician-scientist team unlocks hidden information in human genome 4Dark beer has more iron than pale beer 2