A selective fluorescent and colorimetric dual-responses chemosensor for streptomycin based on polythiophene derivative

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

13 Scopus Citations
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Author(s)

  • Minhuan Lan
  • Weimin Liu
  • Jiechao Ge
  • Jiasheng Wu
  • Jiayu Sun
  • Pengfei Wang

Detail(s)

Original languageEnglish
Pages (from-to)871-874
Journal / PublicationSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume136
Issue numberPB
Publication statusPublished - 5 Feb 2015

Abstract

A colorimetric and fluorescent dual-responses chemosensor (PT3, a water-soluble polythiophene) for streptomycin was designed and synthesized. The structure of PT3 was characterized by using infrared spectroscopy, 1H NMR and gel-permeation chromatography analyses. The conformational change of PT3 induced by streptomycin resulted in the red shift of absorption spectra and fluorescent quenching. Moreover, PT3 showed excellent selectivity for streptomycin over other antibiotics and biomolecules. PT3 could quantificationally detect streptomycin in the range of 2-70 μM with a detection limit of 0.2 μM (116 ppb), which is lower than the maximum residue limit defined by World Health Organization (200 ppb).

Research Area(s)

  • Colorimetric sensor, Conformational change, Fluorescent, Polythiophene, Streptomycin

Citation Format(s)

A selective fluorescent and colorimetric dual-responses chemosensor for streptomycin based on polythiophene derivative. / Lan, Minhuan; Liu, Weimin; Ge, Jiechao; Wu, Jiasheng; Sun, Jiayu; Zhang, Wenjun; Wang, Pengfei.

In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol. 136, No. PB, 05.02.2015, p. 871-874.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review