Fluorescent RNA is a kind of emerging RNA labeling technique that can be used for in situ labeling and imaging of RNA in live cells,which plays an important role in understanding the function and regulation mechanism of RNA.Biosensing technology based on fluorescent RNA can be applied in dynamic detection of small molecule metabolites and proteins in real time,offering valuable tools for basic life science research and biomedical sensing technology development.In this review,we introduce the development of genetically encoded fluorescent RNA,and the application of fluorescent RNA in RNA imaging and biosensing technology based on fluorescent RNA in biosensing in live cell.Meanwhile,we discuss the direction and challenge of future development of fluorescent RNA technology to provide valuable insights for further development and application of this technology in relevant fields.
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