Sensitive, Selective and Simple Serotonin Detection Method by CT Complex Formation between Hyperbranched Viologen Polymer and Serotonin

Sunnam Kim Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Nishiku, Fukuoka; Collaborative Research Division, KASTEC, Kyushu University, Nishi-ku, FukuokaCorrespondence[email protected]

Takeshi Sakano Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Nishiku, Fukuoka

Akihiro Tanaka Nissan Chemical Industries, Ltd., Tokyo

Toshihiko Nagamura Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Nishiku, Fukuoka; Intellectual Property Management Center, KASTEC, Higashi-ku, Fukuoka

Abstract

A hyperbranched polymer containing high concentrations of viologen units was employed to sensitively detect serotonin. The formation of CT complex between hyperbranched viologen polymer, HB-1 and serotonin was investigated by UV-visible absorption and fluorescence spectroscopy as a function of serotonin concentration in the absence and presence of L-tryptophan as a possible disturbing agent. Serotonin was sensitively and selectively detected down to 2 μM in aqueous solutions even in the coexistence of L-tryptophan.

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Sensitive, Selective and Simple Serotonin Detection Method by CT Complex Formation between Hyperbranched Viologen Polymer and Serotonin

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Sensitive, Selective and Simple Serotonin Detection Method by CT Complex Formation between Hyperbranched Viologen Polymer and Serotonin

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