A 1,8-naphthalene imide derivative and its preparation method and use as Hg 2+ Applications of Colorimetric Probes and Fluorescence Switches

By synthesizing a new 1,8-naphthalimide Hg2+ probe, the existing probes have solved the problem of narrow response range and sudden fluorescence performance changes, and achieved multi-channel detection and pimolar ultrasensitive response, which are suitable for portable sensors and fluorescent switches.

CN116789660BActive Publication Date: 2025-03-21SUZHOU UNIV
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Patent Information

Application Number
CN202310462332.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-26
Publication Date
2025-03-21
Estimated Expiration
2043-04-26

AI Technical Summary

Technical Problem

The existing 1,8-naphthalimide Hg2+ fluorescent probes detect Hg2+ in solution has a narrow response range, and the fluorescent performance has a sudden change with the concentration of Hg2+, and lacks a fluorescent switch with pimolar supersensitive response.

Method used

A new multi-channel Hg2+ colorimetric and fluorescent probe can be synthesized through two-step reactions. This probe can not only detect Hg2+ in solution, but also make a test paper-type portable sensor with naked eyes to identify Hg2+, and serve as a supersensitive Hg2+ fluorescent switch with a pimolar response range.

Benefits of technology

Multi-channel detection of Hg2+ is realized, with high selectivity, sensitivity and anti-interference ability, and can respond quickly and reversibly to Hg2+, and achieve a pimolar-level hypersensitive response.

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Abstract

The present invention discloses a 1,8-naphthalimide derivative and a preparation method thereof and a method for preparing the same as Hg 2+ The application of colorimetric probes and fluorescent switches, the BBN compound reacts with 2-aminothiazole to obtain a 1,8-naphthalene imide derivative. The present invention designs and synthesizes a new 1,8-naphthalene imide derivative (BBNS) with an aminothiazole structure at the 4-position. BBNS can identify Hg in multiple channels 2+ :Can detect Hg in solution colorimetrically 2+ , and can also be made into a test paper-type portable sensor to identify Hg with the naked eye 2+ , and can also be used as an ultrasensitive Hg with a response range of up to picomolar levels 2+ Fluorescent switch.
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