Glycopolypeptide gold nanoparticles and preparation method and application thereof
A technology of gold nanoparticles and glycopolypeptides, applied in the field of functionalized gold nanoparticles, can solve the problems of cumbersome and complicated operations, and achieve the effects of simplified preparation process, simple detection method and fast combination speed
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Embodiment 1
[0027] A method for preparing glycopolypeptide gold nanoparticles, comprising the following steps: adding glycopolypeptide to 10 ml of NaOH aqueous solution with a pH of 12, stirring evenly to obtain a mixed solution A, and the mass fraction of the glycopolypeptide in the mixed solution A is 0.125wt%, mixed solution A is warming up to 70 DEG C under water-bath condition, drips the chloroauric acid aqueous solution of 200ul dropwise, obtains mixed solution B, and the molar concentration of chloroauric acid in mixed solution B is 0.5mmol / L, After 45 minutes, the solution gradually changed from the original light yellow to wine red, and glycopolypeptide gold nanoparticles were obtained.
[0028] The glycopolypeptide is prepared by the following method: at room temperature, sodium polyaspartate, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride and 1-hydroxybenzene Dissolve triazole monohydrate in 30ml of water, then add glucosamine hydrochloride, and stir magnetically fo...
Embodiment 2
[0044] A method for preparing glycopolypeptide gold nanoparticles, comprising the following steps: adding glycopolypeptide to 10 ml of NaOH aqueous solution with a pH of 12, stirring evenly to obtain a mixed solution A, and the mass fraction of the glycopolypeptide in the mixed solution A is 0.3wt%, mixed solution A is warming up to 70 ℃ under water bath condition, drips the chloroauric acid aqueous solution of 200ul dropwise under stirring condition, obtains mixed solution B, and the molar concentration of chloroauric acid in mixed solution B is 0.7 mmol / L, after 30 minutes, the mixed solution B gradually changed from the original light yellow to wine red, and the glycopolypeptide gold nanoparticles were obtained.
[0045] The glycopolypeptide is prepared by the following method: at room temperature, polyaspartic acid, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride and 1-hydroxybenzo Triazole monohydrate was dissolved in water, then glucosamine hydrochloride was a...
Embodiment 3
[0047] A method for preparing glycopolypeptide gold nanoparticles, comprising the following steps: adding glycopolypeptide to 10 ml of NaOH aqueous solution with a pH of 12, stirring evenly to obtain a mixed solution A, and the mass fraction of the glycopolypeptide in the mixed solution A is 0.5wt%, mixed solution A is warming up to 80 DEG C under water-bath condition, drips the chloroauric acid aqueous solution of 200ul dropwise, obtains mixed solution B, and the molar concentration of chloroauric acid in mixed solution B is 1.0mmol / L, After 50 minutes, the solution gradually changed from the original light yellow to wine red, and glycopolypeptide gold nanoparticles were obtained.
[0048] The glycopolypeptide is prepared by the following method: at room temperature, polyethylene glycol-b-polyaspartic acid, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride Dissolve salt and 1-hydroxybenzotriazole monohydrate into 30ml of water, then add glucosamine hydrochloride, and...
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