In this study, by fabricating DNA doped with tetraphenylethene-containing ammonium surfactant, the resulting solvent-free DNA ionic complex could undergo a humidity-induced phase change that could be well tracked by the fluorescence signal of the surfactant. Taking advantage of the humidity-induced change in fluorescence, the reported ionic DNA complex could accurately indicate the humidity in real time.
G. Zhang, J. Zhao, Q. Liang, Z. Wu, L. Zhang and X. Luo, Soft Matter, 2024, 20, 3243 DOI: 10.1039/D3SM01531A
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