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An intracellular nanosensor was designed and developed to accurately sense mRNA in living cells without false positive results. This nanosensor consists of gold nanoparticles assembled with recognition sequences and dye-labelled nanoflares. By analyzing both the wavelength shifts and intensity recovery of the scattering spectra, this dual-channel nanosensor could efficiently distinguish and avoid the interference induced by other common substances. This novel dual-channel nanosensor would precisely recognize the target mRNA, and it is promising for further cancer diagnoses.
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Xie et al. (2017) studied this question.
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