Dual stimuli-responsive upconversion nanoparticle-poly-<i>N</i>-isopropylacrylamide/DNA core-shell microgels.

Gao, Qi; Wang, Xiaowen; Hu, Shanjin; He, Ping-Ping; Gou, Siyu; Liu, Shuo; Du, Xiaoxue; Guo, Weiwei · Soft Matter · 2024

basic_science · Level V

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Abstract

Stimuli-responsive upconversion nanoparticle (UCNP)-poly-<i>N</i>-isopropylacrylamide (pNIPAM)/DNA core-shell microgels with tunable sizes and programmable functions have been prepared. Thanks to the near-infrared (NIR)-responsive UCNP cores and thermosensitive polymeric shells, functional DNA-incorporated microgels with high DNA activity and loading efficiency are obtained, and the activity of the loaded DNA structures can be smartly regulated by NIR illumination and temperature simultaneously.