Search

Your search keyword '"Department of Biomedical Engineering"' showing total 2 results
Start Over Author "Department of Biomedical Engineering" Database Academic Search Index
2 results on '"Department of Biomedical Engineering"'

1. Selective detection of extracellular glutamate in brain tissue using microelectrode arrays coated with over-oxidized polypyrrole.

Author

Eric Walker, Jianjun Wang, Naser HamdiCurrent address: Department of Biomedical Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan., Harold G. Monbouquette, and Nigel T. Maidment

Subjects
*DOPAMINE, *BIOGENIC amines, *NEUROTRANSMITTERS, *CATECHOLAMINES
Abstract

We describe the selective measurement of extracellular glutamate concentration in rodent brain using ceramic-based platinum microelectrode arrays (MEAs) coated with electropolymerized, over-oxidized polypyrrole (OPP) as a permselective barrier to interference from dopamine and ascorbate. OPP-coated MEAs displayed similar sensitivity (97 ± 9 nA μM−1 cm−2) and response time (ca. 1 s) to glutamate as previously described Nafion-coated MEAs but, unlike Nafion-coated MEAs, were unresponsive to 5 μM dopamine. Such OPP-coated MEAs afforded selective detection of evoked glutamate release in the dopamine-rich striatum of the mouse brain. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
View/download PDF

2. Focusing microparticles in a microfluidic channel with standing surface acoustic waves (SSAW).

Author

Jinjie Shi, Xiaole Mao, Daniel Ahmed, Ashley CollettiNNIN summer REU student. Present address: Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA., and Tony Jun Huang

Subjects
*DILUTION, *NANOPARTICLES, *ACOUSTIC surface wave devices, *PARTICLES
Abstract

We introduce a novel on-chip microparticle focusing technique using standing surface acoustic waves (SSAW). Our method is simple, fast, dilution-free, and applicable to virtually any type of microparticle. [ABSTRACT FROM AUTHOR]

Published
2008
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results