Temperature-responsible photothermal nanomaterial and preparation method thereof
A nano-material and photothermal technology, applied in the field of medical materials, can solve the problems of not having anti-cancer efficiency and biocompatibility characteristics, and achieve good photothermal effect and good biocompatibility
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Embodiment 1
[0026] 1) Synthesis of photothermal nanomaterial polydopamine (PDA-NPs): Weigh 0.05g dopamine (DA) powder and disperse it in a mixed solvent of 10mL distilled water and 4mL alcohol. After fully stirring and mixing, add 0.1mL ammonia water dropwise, Protect from light, stir well, carry out oxidative self-polymerization at room temperature for 20 hours, centrifuge the reaction solution at a speed of 12000r / min, pour off the supernatant, add alcohol and ultrasonically disperse and clean, repeat three times. The final product was obtained after vacuum drying at 60°C for 12 hours.
[0027] 2), Copolymerization of temperature-responsive monomers and modified monomers with polydopamine: disperse 0.004g polydopamine (PDA-NPs) in 2mL distilled water, ultrasonically disperse for 30min; weigh 0.5420g 3-[N,N-di Methyl-[2-(2-methylprop-2-enoyloxy)ethyl]ammonium]propane-1-sulfonic acid inner salt (SBMA), 0.0188g dimethylaminoethyl methacrylate (DMAEMA) and 0.011g N,N'-methylenebisacrylamid...
Embodiment 2
[0029] 1) Synthesis of photothermal nanomaterial polydopamine (PDA-NPs): Weigh 0.05g dopamine (DA) powder and disperse it in a mixed solvent of 10mL distilled water and 4mL alcohol. After fully stirring and mixing, add 0.1mL ammonia water dropwise, Protect from light, stir well, carry out oxidative self-polymerization at room temperature for 20 hours, centrifuge the reaction solution at a speed of 12000r / min, pour off the supernatant, add alcohol and ultrasonically disperse and clean, repeat three times. The final product was obtained after vacuum drying at 60°C for 12 hours.
[0030] 2), Copolymerization of temperature-responsive monomers and modified monomers with polydopamine: disperse 0.004g polydopamine (PDA-NPs) in 2mL distilled water, ultrasonically disperse for 30min; weigh 0.5313g 3-[N,N-di Methyl-[2-(2-methylprop-2-enoyloxy)ethyl]ammonium]propane-1-sulfonic acid inner salt (SBMA), 0.0162g dimethylaminoethyl methacrylate (DMAEMA) and 0.011g N,N'-methylenebisacrylamid...
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