Photoluminescent Smart Hydrogels with Reversible and Linear Thermoresponses

Abstract

Smart hydrogels are designed and synthesized to exhibit sensitive, linear, and reversible photoluminescence (PL) responses to temperature change in the range of 10 to 50°C.The Eu‐doped core/shell nanoparticle hydrogels consist of poly[styrene‐co‐(N‐isopropylacrylamide)] (PS‐co‐PNIPAM)/PNIPAM.

Green Synthesis of Red‐Emitting Carbon Nanodots as a Novel “Turn‐on” Nanothermometer in Living Cells

“…To this end, intracellular temperature sensing using fluorescent materials represents a potentially useful tool for real‐time and in vivo monitoring of important cellular analytes . Recently, amounts of fluorescent probes have been developed for the measurement of temperature, such as fluorescent dyes, fluorescent polymer nanoparticles, semiconductor quantum dots (SQDs), carbon dots and metal nanoclusters (NCs) . Among them, although SQDs and NCs exhibit size‐tunable emission, small size, high photostability and quantum yields, and large Stokes shifts, serious toxicity or difficult commercial availability, or very broad emission spectra limited their further applications .…”

“…[3][4][5] Recently,a mounts of fluorescentp robes have been developed fort he measurement of temperature, such as fluorescent dyes, fluorescent polymer nanoparticles, semiconductor quantum dots (SQDs), carbon dots and metal nanoclusters (NCs). [6][7][8][9][10] Among them,a lthough SQDs and NCs exhibit size-tunable emission, small size, high photostability and quantum yields, and large Stokes shifts, serious toxicity or difficult commercial availability,o rv ery broad emission spectra limitedt heir furthera pplications. [11][12][13][14][15][16][17][18] Compared to them,f luorescent carbon nanodots( CNDs), as ar ising star in carbonbased nanomaterials family,h ave attracted increasing attention due to their excellent advantages includinge asy preparation and functionalization, no/low toxicitya nd high photostability.…”

Dual functional N- and S-co-doped carbon dots as the sensor for temperature and Fe3+ ions

“…Up to now, a number of promising materials have been developed on the detection, including scanning probe microscopy, Raman spectroscopy and fluorescence-based measurements [33][34] [35]. Indeed, several nanomaterials with fluorescence have been reported for temperature determination, such as semiconductor quantum dots, organic dyes, fluorescent polymers [36][37] [38].…”

Interfacing a Tetraphenylethene Derivative and a Smart Hydrogel for Temperature-Dependent Photoluminescence with Sensitive Thermoresponse

“…31 The hydrogel nanoparticles consisted of a core−shell structure, with the core of poly[styrene-co-(N-isopropylacrylamide)] (PS-co-PNIPAM) and the shell of PNIPAM. The photoluminescent entity was Eu(III) phthalate which was made from the reaction of EuCl 3 and phthalic acid in water.…”