Nikitina, Anna A.Milichko, Valentin ANovikov, Alexander S.Larin, Artem O.Nandi, ProloyMirsaidov, UtkurAndreeva, Daria V.Rybin, Mikhail V.Kivshar, YuriSkorb, Ekaterina V.2023-05-251433-7851http://hdl.handle.net/1885/292182We suggest a new strategy for creating stimuli-responsive bio-integrated optical nanostructures based on Mie-resonant silicon nanoparticles covered by an ensemble of similarity negatively charged polyelectrolytes (heparin and sodium polystyrene sulfonate). The dynamic tuning of the nanostructures’ optical response is due to light-induced heating of the nanoparticles and swelling of the polyelectrolyte shell. The resulting hydrophilic/hydrophobic transitions significantly change the shell thickness and reversible shift of the scattering spectra for individual nanoparticles up to 60 nm. Our findings bring novel opportunities for the application of smart nanomaterials in nanomedicine and bio-integrated nanophotonics.Authors acknowledge RSF grant no. 19-19-00508 for the support of PEs study for the formation of robust PE shell. The optical work was funded by the Ministry of Science and Higher Education (Project 14.Y26.31.0010). ITMO Fellow-ship and Professorship Program 08-08 is acknowledged for Infrastructural Support.application/pdfen-AU© 2021 Wiley-VCH GmbHall-dielectric nanophotonicspolyelectrolyte assemblysilicon nanoparticlesstimuli-responsive structures202110.1002/anie.2021011882022-03-27