Research Progress of 4-Substituted 1,8-naphthalimide Fluorescent Probes
Fluorescence spectroscopy is a technical tool for the detection of quantitative low-concentration analytes.Recent research progress shows that fluorophores with 1,8-naphthalimide,rhodamine B,coumarin,quinoline and other fluorescent probes have research value and potential applications.As a special environmentally sensitive fluorophore,1,8-naphthalimide derivatives are increasingly studied because of their strong absorption and emission in visible regions,high optical stability,large Stokes shift,high fluorescence quantum yield and easy modification of the 4-position structure.In recent years,the design and preparation of novel fluorescent probes for the 4-substitution 1,8-naphthalimide have attracted wide attention.The research progress of 4-substituted 1,8-naphthalimide fluorescent probes was reviewed.By introducing different electron-donating or electron-receiving groups at the C-4 position of the 1,8-naphthalimide unit,the modification of the fluorescence properties of 1,8-naphthalimide fluorescent probes can be achieved.
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