Preparation method and application of Mg2+ fluorescent probe with AIEE property

Abstract

The invention discloses a preparation method and application of an Mg2+ fluorescent probe with an AIEE property. The preparation method of the Mg2+ fluorescent probe with the AIEE property includes the following steps that 8 mmol o-phenylenediamine and 4 mmol 5-bromosalicylaldehyde are added into a 35 mL ethanol solution in sequence, and reflux is performed for 4 hours after the solution is stirred uniformly to obtain a raw product; recrystallization is performed on the raw product by use of 95% ethyl alcohol, and drying is performed at the indoor temperature to obtain the fluorescent probe. According to the preparation method of the Mg2+ fluorescent probe with the AIEE property, the o-phenylenediamine and the 5-bromosalicylaldehyde are designed and synthesized into a Schiff base fluorescent probe with the AIEE property through a simple and convenient method, relative to other metal icons, the probe L has high selective recognition effect on magnesium ion, other positive icons have no influence on the probe L, the fluorescent condition is strengthened, and the fluorescent probe with the AIEE property can be used as an Mg2+ sensitive probe for detecting other positive icons in acetonitrile with no interference or with less interference.

Description

technical field [0001] The present invention relates to Mg 2+ The field of fluorescent probes, specifically related to a kind of Mg with AIEE properties 2+ Preparation method and application of fluorescent probe. Background technique [0002] Mg 2+ It is one of the most abundant divalent ions and also plays an important role in the field of biology, for example, cell proliferation, DNA synthesis, protein phosphorylation and its diverse transport. Therefore, to detect Mg 2+ is of great significance. [0003] Although many compounds have been synthesized in recent years to detect Mg 2+ , but the synthesis of most compounds is relatively complex and time-consuming. Certain Schiff bases have attracted widespread attention because of their good AIEE properties and their synthesis is simple and time-consuming. In our study, a fluorescent probe Schiff base with AIEE activity was finally synthesized. This compound exhibits good characteristics of aggregation-induced luminesc...

AI Technical Summary

Problems solved by technology

[0003] Although many compounds have been synthesized in recent years to detect Mg 2+ , but the synthesis of most compounds is relatively complex and time-consuming

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