Selective determination of microbial cells by graphite electrode modified with adsorbed 4,4′-bipyridine

Tadashi Matsunaga; Yoichi Namba

doi:10.1016/S0003-2670(00)84284-1

Selective determination of microbial cells by graphite electrode modified with adsorbed 4,4′-bipyridine

Tadashi Matsunaga^*, Yoichi Namba

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

The concentrations of microbial cells in suspensions can be measured with a graphite electrode modifed with adsorbed 4,4′-bipyridine, by using cyclic volummetry or differential pulse volummetry. The relationship between the peak current and the cell concentration for Saccharomyces cerevisiae is linear over the range 0.03 × 10⁸-2.0 × 10⁸ cells ml^-1. Yeast, gram-positive bacteria and gram-negative bacteria gave different peak potentials, which may be useful for classification purposes. Electron transfer between the microbial cells and the 4,4′-bipyridine-modified electrode is mediated by coenzyme A in the cell wall.

Original language	English
Pages (from-to)	87-94
Number of pages	8
Journal	Analytica Chimica Acta
Volume	159
Issue number	C
DOIs	https://doi.org/10.1016/S0003-2670(00)84284-1
Publication status	Published - 1984
Externally published	Yes

ASJC Scopus subject areas

Analytical Chemistry
Environmental Chemistry
Biochemistry
Spectroscopy

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10.1016/S0003-2670(00)84284-1

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title = "Selective determination of microbial cells by graphite electrode modified with adsorbed 4,4′-bipyridine",

abstract = "The concentrations of microbial cells in suspensions can be measured with a graphite electrode modifed with adsorbed 4,4′-bipyridine, by using cyclic volummetry or differential pulse volummetry. The relationship between the peak current and the cell concentration for Saccharomyces cerevisiae is linear over the range 0.03 × 108-2.0 × 108 cells ml-1. Yeast, gram-positive bacteria and gram-negative bacteria gave different peak potentials, which may be useful for classification purposes. Electron transfer between the microbial cells and the 4,4′-bipyridine-modified electrode is mediated by coenzyme A in the cell wall.",

author = "Tadashi Matsunaga and Yoichi Namba",

year = "1984",

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journal = "Analytica Chimica Acta",

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AU - Matsunaga, Tadashi

AU - Namba, Yoichi

PY - 1984

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AB - The concentrations of microbial cells in suspensions can be measured with a graphite electrode modifed with adsorbed 4,4′-bipyridine, by using cyclic volummetry or differential pulse volummetry. The relationship between the peak current and the cell concentration for Saccharomyces cerevisiae is linear over the range 0.03 × 108-2.0 × 108 cells ml-1. Yeast, gram-positive bacteria and gram-negative bacteria gave different peak potentials, which may be useful for classification purposes. Electron transfer between the microbial cells and the 4,4′-bipyridine-modified electrode is mediated by coenzyme A in the cell wall.

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JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

IS - C

ER -

Selective determination of microbial cells by graphite electrode modified with adsorbed 4,4′-bipyridine

Abstract

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