A gold nanocluster hybrid microgel with dual response to temperature/light and its preparation method
A gold nanocluster and gold nanotechnology, which is applied in the field of gold nanocluster hybrid microgel and its preparation, can solve the problems that limit the practical application of microgel, and achieve good application prospects
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Embodiment 1
[0027] Take 19mL of tetrahydrofuran in a three-necked flask, add 1mL of 50mM aqueous auric acid chloride solution, and prepare a solution with a 5mM chloroauric acid concentration. Stir with a magnetic stirrer at room temperature for about 10 minutes, add mercaptoethylamine to the aforementioned solution to obtain a mixed solution of mercaptoethylamine and chloroauric acid (the molar ratio of mercaptoethylamine to chloroauric acid in the solution is 5:1), and Under the reaction 4h. The pH of the mixed solution was adjusted to 10 using aqueous sodium hydroxide solution. The temperature was controlled at 40°C, stirred, reduced by CO2, the flow rate was 20mL / min, and reacted for 24h to obtain the gold nanocluster solution. In an ice-water bath environment, 10 mg of acryloyl chloride was added to the prepared gold nanocluster solution while stirring, reacted in an ice-water bath for 5 h, and then spin-dried to obtain double-bonded gold nanoclusters.
[0028] The obtained double-...
Embodiment 2
[0030] Take 19mL of tetrahydrofuran in a three-necked flask, add 1mL of 50mM aqueous auric acid chloride solution, and prepare a solution with a 5mM chloroauric acid concentration. Stir with a magnetic stirrer at room temperature for about 10 minutes, add mercaptoethylamine to the aforementioned solution to obtain a mixed solution of mercaptoethylamine and chloroauric acid (the molar ratio of mercaptoethylamine to chloroauric acid in the solution is 5:1), and Under the reaction 4h. The pH of the mixed solution was adjusted to 10 using aqueous sodium hydroxide solution. The temperature was controlled at 40°C, stirred, reduced by CO2, the flow rate was 20mL / min, and reacted for 24h to obtain the gold nanocluster solution. In an ice-water bath environment, 10 mg of acryloyl chloride was added to the prepared gold nanocluster solution while stirring, reacted in an ice-water bath for 5 h, and then spin-dried to obtain double-bonded gold nanoclusters.
[0031]The obtained double-b...
Embodiment 3
[0033] Take 19mL of tetrahydrofuran in a three-necked flask, add 1mL of 50mM aqueous auric acid chloride solution, and prepare a solution with a 5mM chloroauric acid concentration. Stir with a magnetic stirrer at room temperature for about 10 minutes, add mercaptoethylamine to the aforementioned solution to obtain a mixed solution of mercaptoethylamine and chloroauric acid (the molar ratio of mercaptoethylamine to chloroauric acid in the solution is 5:1), and Under the reaction 4h. The pH of the mixed solution was adjusted to 10 using aqueous sodium hydroxide solution. The temperature was controlled at 40°C, stirred, reduced by CO2, the flow rate was 20mL / min, and reacted for 24h to obtain the gold nanocluster solution. In an ice-water bath environment, 10 mg of acryloyl chloride was added to the prepared gold nanocluster solution while stirring, reacted in an ice-water bath for 5 h, and then spin-dried to obtain double-bonded fluorescent gold nanoclusters.
[0034] The obta...
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