Ureaazole-gold nanocluster complex and its preparation method and use
A technology of gold nano-clusters and complexes, which is applied in the field of synthesis of urazole-gold nano-cluster complexes, can solve the problems of insufficient stability of nano-imaging agents, and achieves the effect of an economical imaging method.
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Embodiment example 1
[0023] Implementation case 1 (best synthesis condition):
[0024] Dissolve 0.1000g of polyvinylpyrrolidone (PVP) in 1mL of ultrapure water (100mg·mL -1 ), to obtain No. 1 reaction solution, the concentration of polyvinylpyrrolidone is 100mg·mL -1 . Dissolve 0.0170g of tetrachloroauric acid in 3mL of ultrapure water (16.67mM) to obtain No. 2 reaction solution, the concentration of tetrachloroauric acid is 16.67mM, and stir at room temperature (18±2°C). 0.0505 g of urazole was dissolved in 10 mL of ultrapure water (50 mM) to obtain No. 3 reaction solution, and the concentration of urazole was 50 mM. Using urazole as a template agent, take 1mL of No. 3 reaction solution and quickly inject it into No. 2 reaction solution. At this time, the mixed solution is bright yellow. After stirring at room temperature for 15 seconds, the solution gradually turns yellowish brown. At this time, inject 1 mL of polyethylene prepared in advance. Pyrrolidone solution (urazole in the reaction sys...
Embodiment example 2
[0026] Dissolve 0.1000g of polyvinylpyrrolidone (PVP) in 1mL of ultrapure water (100mg·mL -1 ), to obtain No. 1 reaction solution, the concentration of polyvinylpyrrolidone is 100mg·mL -1 . Dissolve 0.0170g of tetrachloroauric acid in 3mL of ultrapure water (16.67mM) to obtain No. 2 reaction solution, the concentration of tetrachloroauric acid is 16.67mM, and stir at room temperature (18±2°C). 0.0505 g of urazole was dissolved in 10 mL of ultrapure water (50 mM) to obtain No. 3 reaction solution, and the concentration of urazole was 50 mM. Using urazole as a template, take 1mL of the No. 3 reaction solution and quickly inject it into the No. 2 reaction solution. At this time, the mixed solution is bright yellow. After stirring at room temperature for 10 seconds, the color of the solution begins to darken. At this time, inject 1mL of polyethylene prepared in advance. Pyrrolidone solution (urazole in the reaction system, HAuCl 4 and PVP concentrations were 10mM, 10mM and 20mg...
Embodiment example 3
[0028] Dissolve 0.1000g of polyvinylpyrrolidone (PVP) in 1mL of ultrapure water (100mg·mL -1), to obtain No. 1 reaction solution, the concentration of polyvinylpyrrolidone is 100mg·mL -1 . Dissolve 0.0170g of tetrachloroauric acid in 3mL of ultrapure water (16.67mM) to obtain No. 2 reaction solution, the concentration of tetrachloroauric acid is 16.67mM, and stir at room temperature (18±2°C). 0.0505 g of urazole was dissolved in 10 mL of ultrapure water (50 mM) to obtain No. 3 reaction solution, and the concentration of urazole was 50 mM. Using urazole as a template, take 1 mL of No. 3 reaction solution and quickly inject it into No. 2 reaction solution. At this time, the mixed solution is bright yellow. After stirring at room temperature for 30 seconds, the solution gradually turns dark brown. At this time, inject 1 mL of polyethylene prepared in advance. Pyrrolidone solution (urazole in the reaction system, HAuCl 4 and PVP concentrations were 10mM, 10mM and 20mg·mL -1 ),...
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