▎ 摘　　要

NOVELTY - A hydrogel comprises an acrylate polymer, and vinylpyrrolidone compound comprising 6C or more alkyl group, and is capable of self-healing and exhibiting shape memory behavior with qualitative temperature variations which is above the melting temperature of the components. The hydrogel is heated by a light source at different wavelengths using a photothermal effect caused by a surface plasmon resonance and trapped, and contains metals, such as nanosized silver, gold, palladium, titanium, nickel and graphene and their alloys as nanoparticles. USE - Hydrogel is used for sensor, electronic organic material, raw material for three-dimensional printer, nanosized biomaterial, implant for human body, drug delivery system or nanomedicine, battery e.g. lithium battery, and photovoltaic material. Can also be used for orthodontic brace, stent, instrument of endodontics, orthopedic product, robotic technology, automotive industry, damping element, aviation and space applications, building application and infrastructure. ADVANTAGE - The hydrogel has excellent shape memory property and self-healing property.