Polypeptide-quantum dot nanocomposite solution and its synthesis method
A nanocomposite and synthesis method technology, applied in the field of one-step aqueous phase synthesis of polypeptide-quantum dot nanocomposite solution, can solve problems such as complicated process and loss of quantum dot luminescence performance, and achieve simple method, short time and reproducible good sex effect
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[0024] A synthetic method of a polypeptide-quantum dot nanocomposite solution provided by the invention comprises the following steps:
[0025] Step 1. Weigh 0.03~0.4g of cadmium chloride and 0.05~1.2g of thioglycerol and dissolve them in 100ml of ultrapure water, adjust the pH value of the solution to pH 9-10, and obtain the first precursor stock solution;
[0026] Step 2, weighing 0.03-0.06g of zinc sulfate and 0.02-0.1g of thioglycerol, and dissolving them in 10ml of ultrapure water, adjusting the pH value of the solution to a pH value of 9-10 to obtain the second precursor stock solution;
[0027] Step 3: Weighing 1-10 mg of the polypeptide and dissolving it in 1 ml of ultrapure water to obtain the third precursor stock solution;
[0028] Step 4: Weigh 0.01-0.04g of tellurium powder and 0.025-0.08g of sodium borohydride, and dissolve them in 1ml of ultrapure water, and let stand for 12 hours to obtain the fourth precursor stock solution;
[0029] Step 5: Take 1ml of the ...
Embodiment 1
[0032] Step 1. Preparation of the first precursor stock solution (precursor stock solution A): Weigh 0.03 g of cadmium chloride and 0.05 g of thioglycerol, dissolve them in 100 ml of ultrapure water, adjust the pH of the solution to 9, and set aside.
[0033] Step 2. Preparation of the second precursor stock solution (precursor stock solution B): Weigh 0.03 g of zinc sulfate and 0.02 g of thioglycerol, dissolve them in 10 ml of ultrapure water, adjust the pH of the solution to 9, and set aside.
[0034] Step 3. Preparation of the third precursor stock solution (precursor stock solution C): weigh 10 mg of the polypeptide, dissolve it in 1 ml of ultrapure water, and set aside.
[0035] Step 4. Preparation of the fourth precursor stock solution (precursor stock solution D): Weigh 0.040 g of tellurium powder and 0.08 g of sodium borohydride, dissolve them in 1 ml of ultrapure water, let stand for 12 hours, and set aside.
[0036] Step 5. Synthesis of polypeptide-quantum dot comple...
Embodiment 2
[0038] Step 1. Preparation of precursor stock solution A: Weigh 0.04 g of cadmium chloride and 0.1 g of thioglycerol, dissolve them in 100 ml of ultrapure water, adjust the pH of the solution to 10, and set aside.
[0039] Step 2. Preparation of precursor stock solution B: Weigh 0.05 g of zinc sulfate and 0.08 g of thioglycerol, dissolve them in 10 ml of ultrapure water, adjust the pH of the solution to 10, and set aside.
[0040] Step 3. Preparation of precursor stock solution C: Weigh 4 mg of polypeptide, dissolve in 1 ml of ultrapure water, and set aside.
[0041] Step 4. Preparation of precursor stock solution D: Weigh 0.01 g of tellurium powder and 0.025 g of sodium borohydride, dissolve in 1 ml of ultrapure water, let stand for 12 hours, and set aside.
[0042] Step 5. Synthesis of polypeptide-quantum dot complex: Take 1ml of precursor stock solution A, add 0.04ml of precursor stock solution B, then add 0.02ml of precursor stock solution C, and finally add 0.05ml of prec...
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