Enhancing intracellular microRNA imaging: a new strategy combining double-channel exciting single colour fluorescence with the target cycling amplification reaction†
Abstract
A microRNA (miRNA) fluorescence (FL) nanoprobe based on PDA-UCNPs@FAM-LLD@AuNPs was developed, which exhibited an enhanced signal for imaging intracellular miRNA by combining double-channel exciting single colour FL (DCESCF) with the target cycling amplification reaction. Through this strategy, normal cells and cancer cells could be successfully discriminated.

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