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'Powerhouses' From Living Cells -- Mitochondria -- Power New Explosives Detector

Date:
November 22, 2008
Source:
American Chemical Society
Summary:
Researchers in Missouri have borrowed the technology that living cells use to produce energy to develop a tiny, self-powered sensor for rapid detection of hidden explosives. The experimental sensor, about the size of a postage stamp, represents the first of its kind to be powered by mitochondria, the microscopic "powerhouses" that provide energy to living cells, the researchers say.

Scientists have developed a stamp-sized sensor for detecting hidden explosives. The sensor is powered by mitochondria, which provide energy to living cells.
Credit: American Chemical Society

Researchers in Missouri have borrowed the technology that living cells use to produce energy to develop a tiny, self-powered sensor for rapid detection of hidden explosives. The experimental sensor, about the size of a postage stamp, represents the first of its kind to be powered by mitochondria, the microscopic "powerhouses" that provide energy to living cells, the researchers say.

In the new study, Shelley Minteer, Marguerite Germain, and Robert Arechederra point out that today's explosives detectors are expensive, bulky, and complex. Society needs smaller, cheaper, simpler detection devices, based on technology that perhaps could be incorporated into cell phones and portable digital music players, the researchers suggest.

The scientists describe development of an experimental sensor built from a special biofuel cell, essentially a battery-like device consisting of a thin layer of mitochondria sandwiched between a carbon-based electrode and a gas-permeable electrode. In laboratory studies using nitrobenzene as a test compound, the sensor showed a significant boost in electrical power in the presence of the substance, demonstrating the sensor's potential for detecting TNT and related explosives, the researchers say.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Germain et al. Nitroaromatic Actuation of Mitochondrial Bioelectrocatalysis for Self-Powered Explosive Sensors. Journal of the American Chemical Society, 2008; 130 (46): 15272 DOI: 10.1021/ja807250b

Cite This Page:

American Chemical Society. "'Powerhouses' From Living Cells -- Mitochondria -- Power New Explosives Detector." ScienceDaily. ScienceDaily, 22 November 2008. <www.sciencedaily.com/releases/2008/11/081117095346.htm>.
American Chemical Society. (2008, November 22). 'Powerhouses' From Living Cells -- Mitochondria -- Power New Explosives Detector. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2008/11/081117095346.htm
American Chemical Society. "'Powerhouses' From Living Cells -- Mitochondria -- Power New Explosives Detector." ScienceDaily. www.sciencedaily.com/releases/2008/11/081117095346.htm (accessed July 29, 2014).

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