A Simple Schiff Base Probe for Quintuplicate-Metal Analytes with Four Emission-Wavelength Responses.

ABSTRACT: A versatile mono-Schiff compound consisting of o-aminobenzene-hydroxyjulolidine (ABJ-MS) has been easily synthesized using a one-step reaction. ABJ-MS displays four diverse fluorescence responses to the addition of Zn²⁺/Al³⁺/Fe³⁺/Ag⁺, with the maximum fluorescence emission at 530 nm undergoing a hypsochromic shift to 502/490/440/430 nm, synchronously with the discriminating fluorescence enhancement being 10.6/22.8/2.6/7.1-fold, respectively. However, the addition of Cu²⁺ into ABJ-MS leads to an opposite behavior, namely, fluorescence quenching. Meanwhile, ABJ-MS also displays distinct absorption changes after adding these five metal ions due to different binding affinities between them and ABJ-MS, which gives ABJ-MS quite a vers

SUBMITTER: Zhang J 

PROVIDER: S-EPMC10490265 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature