1 research outputs found
Synthesis of Cu-Nanoparticle Hydrogel with Self-Healing and Photothermal Properties
Copper
(Cu) nanoparticles possess unusual electrical, thermal, and optical
properties. However, applications of these materials are often limited
by their tendency to oxidize. We prepared Cu nanoparticles by a simple
polyol method, with a good control over the particle size. The reaction
required no inert atmosphere or surfactant agents. The as-prepared
Cu nanoparticles showed good resistance to oxidation in solution.
These Cu nanoparticles were then incorporated into a biocompatible
polysaccharide hydrogel, which further stabilized the nanoparticles.
The hybrid hydrogel exhibited a rapid self-healing ability. Because
of the excellent photothermal conversion properties of the embedded
Cu nanoparticles, the hybrid hydrogel showed rapid temperature elevation
under laser irradiation. The hybrid hydrogel showed limited cytotoxicity;
however, under laser irradiation the hydrogel displayed antibacterial
properties owing to the heating effects. This study demonstrates that
our hybrid hydrogel may have applications in biomedical fields and
photothermal therapy