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Indexed by:期刊论文

Date of Publication:2008-07-28

Journal:SENSORS AND ACTUATORS B-CHEMICAL

Included Journals:SCIE、EI、Scopus

Volume:133

Issue:1

Page Number:113-117

ISSN No.:0925-4005

Key Words:two-photon fluorescent sensor; azathiacrown ether; binding constant; selectivity; sensitivity

Abstract:A two-photon sensor for the silver ion derived from 3,9-dithia-6-azaundecane as the receptor is reported. The sensor exhibits high sensitivity to and selectivity for silver ion, and emits strong two-photon fluorescence when excited by 8 10 nm laser photons. Moreover, the binding constants measured by the one- and two-photon fluorescence are similar. This result may be useful for the design of efficient two-photon fluorescence probes for biological substrates. (C) 2008 Elsevier B.V. All rights reserved.