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Indexed by:期刊论文

Date of Publication:2013-02-01

Journal:DYES AND PIGMENTS

Included Journals:SCIE、EI

Volume:96

Issue:2

Page Number:333-337

ISSN No.:0143-7208

Key Words:Fluorescent chemosensor; Nitric oxide; 1,8-Naphthalimide; o-phenylenediamine; Colorimetric; Bioimaging

Abstract:A fluorescent chemosensor N-n-butyl-3,4-diamino-1,8-naphthalimide (DAN) for detecting NO was developed on the basis of 1,8-naphthalimide with a similar structure of o-phenylenediamine as a NO reaction site. Due to the interaction between the photoinduced electron transfer (PET) and the intramolecular charge transfer (ICT), the chemosensor exhibits a remarkable enhancement in the emission intensity that is ca. 160-fold increase and a blue shift in the emission wavelength after the addition of NO. Meanwhile, it displays a colorimetric response accompanied with a color change from yellow to colorless. The chemosensor DAN shows a high selectivity for NO in the presence of various reactive nitrogen species (RNS) and reactive oxygen species (ROS). Furthermore, DAN can be used for bioimaging of NO in living cells. (C) 2012 Elsevier Ltd. All rights reserved.