A kind of synthesis method of photosensitivity star-shaped gold nanoparticles
The technology of a gold nanoparticle and a synthesis method is applied in the field of nanomaterial preparation, which can solve the problems of nanomaterial preparation and further application limitations, high requirements for production equipment, complex preparation process, etc., and achieves excellent light sensitivity, cost-free pollution, Simple preparation process
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Embodiment 1
[0024] Take 1.6 mg of lanreotide acetate (manufactured by Wuxi Maimertop Biotechnology Co., Ltd.), and dissolve it in 1 mL of hydrochloric acid solution at pH 1.0 to obtain an acidic lanreotide acetate solution with a concentration of 0.15 mM; take 200 μL of the above-mentioned lanreotide acetate solution, put it into an ultrasonic cleaner, ultrasonicate for 5min under the conditions of ultrasonic power of 70Hz and temperature of 35°C, and then place it in a double-layer air bath oscillator for incubation for 1h; the lanreotide acetate solution to be treated is reduced to After room temperature, 200 μL of gold chloride solution with a concentration of 2 mM (Shanghai Xiya Reagent Co., Ltd.); First add 1 drop of reducing agent ascorbic acid with a concentration of 10mM, then add 1 drop of ascorbic acid with a concentration of 40mM, and finally add 1 drop of ascorbic acid with a concentration of 10mM. / drop, the reaction temperature was 20°C, and after 1 hour of reaction, the go...
Embodiment 2
[0027] Take 2.7 mg of lanreotide acetate (manufactured by Wuxi Maimertop Biotechnology Co., Ltd.), and dissolve it in 1 mL of hydrochloric acid solution at pH 2.0 to obtain an acidic lanreotide acetate solution with a concentration of 0.25 mM; take 200 μL of the above-mentioned lanreotide acetate solution, put it into an ultrasonic cleaner, ultrasonicate for 10min under the conditions of ultrasonic power of 70Hz and temperature of 35°C, and then place it in a double-layer air bath oscillator for incubation for 2h; After room temperature, 200 μL of gold chloride solution with a concentration of 2.5 mM (Shanghai Xiya Reagent Co., Ltd.); Add 1 drop of reducing agent ascorbic acid with a concentration of 20mM to the good solution, then add 2 drops of ascorbic acid with a concentration of 50mM, and finally add 1 drop of ascorbic acid with a concentration of 20mM, and control the dropping rate of the reducing agent to 1 drop / 2 minutes. 30 μL / drop, the reaction temperature was 25°C, ...
Embodiment 3
[0030] Take 3.8 mg of lanreotide acetate (manufactured by Wuxi Maimertop Biotechnology Co., Ltd.), dissolve it in 1 mL of hydrochloric acid solution at pH 3.0, and obtain an acidic lanreotide acetate solution with a concentration of 0.35 mM; take 200 μL of the above-mentioned lanreotide acetate solution, put it into an ultrasonic cleaner, ultrasonicate for 20min under the conditions of ultrasonic power of 70Hz and temperature of 35°C, and then place it in a double-layer air bath oscillator for incubation for 3h; the lanreotide acetate solution to be treated is reduced to After room temperature, 200 μL of 3 mM gold chloride solution (Shanghai West Asia Reagent Co., Ltd.); First add 1 drop of reducing agent ascorbic acid with a concentration of 30mM, then add 3 drops of ascorbic acid with a concentration of 60mM, and finally add 1 drop of ascorbic acid with a concentration of 30mM. / drop, the reaction temperature was 30°C, and after 3 hours of reaction, the gold ions bound on t...
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