NDLI: Serotonin (5-HT) released by activated white blood cells in a biological fuel cell provide a potential energy source for electricity generation

Content Provider	IEEE Xplore Digital Library
Author	Justin, G.A. Sun, M. Zhang, Y. Cui, X.T. Sclabassi, R.
Copyright Year	2006
Description	Author affiliation: Dept. of Bioeng., Pittsburgh Univ., PA (Justin, G.A.)
Abstract	Previous studies by our group have demonstrated the ability of white blood cells to generate small electrical currents, on the order of 1-3 $muA/cm^{2},$ when placed at the anode compartment of a proton exchange membrane (PEM) biological fuel cell. In this research study, an electrochemical technique is used to further investigate the electron transfer ability of activated white blood cells at interfacing electrodes in an attempt to elucidate the mechanism of electron transfer in the original biological fuel cell experiments. Cyclic voltammograms were obtained for human white blood cells using a three-electrode system. The working and counter electrodes were made from carbon felt and platinum, respectively, while the reference was a saturated calomel electrode (SCE). Oxidation peaks were observed at an average potential of 363 mV vs. SCE for the PMA/ionomycin activated white blood cells in glucose solution. However a corresponding reduction peak was not observed, suggesting irreversibility of the redox reaction. The cyclic voltammograms recorded for the white blood cells bear very close similarities to those of the neurotransmitter serotonin (5-HT). Serotonin released by white blood cells into the extracellular environment may be irreversibly oxidized at the working electrode in the cyclic voltammetry experiments and at the PEM biological fuel cell anode in our earlier electrochemical cell studies
Sponsorship	IEEE EMB
Starting Page	4115
Ending Page	4118
File Size	881361
Page Count	4
File Format	PDF
ISBN	1424400325
ISSN	1557170X
DOI	10.1109/IEMBS.2006.259280
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	White blood cells Fuel cells Potential energy Power generation Electrodes Anodes Electrons Protons Biomembranes Humans
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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