CdSe quantum dots-sensitized FRET system for ciprofloxacin detection

Hong Xia, Maomin Peng, Nan Li, Li Liu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The prepared CdSe quantum dots (QDs) were applied to selectively and sensitively assay ciprofloxacin as a fluorescence sensor based on fluorescence resonance energy transfer (FRET) mechanism. The efficiency of FRET between CdSe QDs and ciprofloxacin can be modulated by the degree of spectral overlap between the excitation peak of CdSe QDs and the emission peak of ciprofloxacin. Within the range of 0 to 120 μmol·L−1, the good linearity was obtained (R = 0.99561) and the detection limit reached to 0.6 μmol·L−1. This method is simple and rapid and can be used in environmental water and milk samples.

Original languageEnglish
Article number137085
JournalChemical Physics Letters
Volume740
DOIs
Publication statusPublished - Feb 2020
Externally publishedYes

Keywords

  • CdSe quantum dots
  • Ciprofloxacin
  • Fluorescent sensor
  • FRET
  • Luminescence
  • Semiconductors

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