Thermosensitive organic–inorganic (O–I) hydrogels have been synthesized by modification of poly(N-isopropylacrylamide) (PNIPA) gels with silica from tetramethoxysilane (TMOS) or with ...
a, Dependence of the refractive index (RI) change on the temperature of PNIPA solution at different heating power in the experiment. b, Extracted refractive index change (∆n) of PNIPA solution on the ...
High-Q microcavities have provided increasing opportunities for optical sensing and precision measurement in the past decades, with intriguing features of miniature size, non-invasiveness and fast ...
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