Abstract
We designed and synthesized a novel reaction-based fluorescent and colorimetric sensor (NPT) based on naphthalimide-benzothiazole conjugate. In this hybrid receptor, the two units of donor and acceptor were covalently linked through a double bond. Obstruction in the intramolecular charge transfer (ICT) transition by the nucleophilic addition of a cyanide anion or tryptophan to the benzothiazolium group induces spectral changes and color change of the receptor. The detection limit of CN− and tryptophan was estimated based on the fluorescence titration profile, which was found to be 4.5 nM and 15.2 nM, respectively, in EtOH-H2O. Absorbance and fluorescence results revealed that a 1:1 binding stoichiometry between receptor and cyanide/tryptophan. Additionally, a binding mechanism of tryptophan and its receptor is proposed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
