Prussian blue analog nanoparticles, and preparation method and application thereof
A Prussian blue-like and nanoparticle technology, which is applied in the field of Prussian blue-like nanoparticles and their preparation, can solve the problems that drugs cannot produce efficacy, cannot reach the interior of cells, radiotherapy fails, etc., and achieves uniform and stable preparation process and good clinical application prospects. , the effect of accelerating cell growth
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Embodiment 1
[0032] Preparation of Prussian blue-like nanoparticles with a molar ratio of iron and zinc of 3:1:
[0033] S1. Mix potassium ferricyanide, namely potassium hexacyanoferrate (0.2~0.4mol / L) and biocompatible polymer polyvinylpyrrolidone / hyaluronic acid mixed aqueous solution (0.05~0.2mol / L) evenly to obtain a mixed Liquid A; wherein, the molar ratio of polyvinylpyrrolidone / hyaluronic acid mixture to potassium hexacyanoferrate is 1: (30-50);
[0034] S2. Divalent Fe(II) and Zn(II) mixed salt (molar ratio is 3:1, concentration is 0.1~0.2mol / L) and polyvinylpyrrolidone / hyaluronic acid aqueous solution (0.05~0.2mol / L ) were mixed uniformly to obtain mixed solution B; wherein, the molar ratio of hyaluronic acid / polyvinylpyrrolidone mixture to Fe(II) and Zn(II) mixed salt was 1: (30-50); divalent Fe(II) and Zn (II) salt is preferred with sulfate and hydrochloride;
[0035] S3. Slowly add the mixed solution B to the mixed solution A, and heat to obtain an aqueous solution containing...
Embodiment 2
[0047] Preparation of Prussian blue-like nanoparticles with a molar ratio of iron and zinc of 2:1:
[0048] S1. Potassium ferricyanide, potassium hexacyanoferrate (0.2~0.4mol / L) and organic polymer surface protection agent polyvinylpyrrolidone / hyaluronic acid mixed aqueous solution (0.05~0.2mol / L) are mixed uniformly to obtain Mixture A; wherein, the molar ratio of polyvinylpyrrolidone / hyaluronic acid mixture to potassium hexacyanoferrate is 1: (30-50);
[0049] S2, mix divalent Fe(II) and Zn(II) mixed salt (molar ratio is 2:1, concentration is 0.1~0.2mol / L respectively) and polyvinylpyrrolidone / hyaluronic acid aqueous solution (0.05~0.2mol / L ) were mixed uniformly to obtain mixed solution B; wherein, the molar ratio of hyaluronic acid / polyvinylpyrrolidone mixture to Fe(II) and Zn(II) mixed salt was 1: (30-50); divalent Fe(II) and Zn (II) salt is preferred with sulfate and hydrochloride;
[0050] S3. Slowly add the mixed solution B to the mixed solution A, and heat to obtain...
Embodiment 3
[0055] Preparation of iron-zinc molar ratio of 1:1 targeted Prussian blue nanoparticles:
[0056] S1. Potassium ferricyanide, potassium hexacyanoferrate (0.2~0.4mol / L) and organic polymer surface protection agent polyvinylpyrrolidone / hyaluronic acid mixed aqueous solution (0.05~0.2mol / L) are mixed uniformly to obtain Mixture A; wherein, the molar ratio of polyvinylpyrrolidone / hyaluronic acid mixture to potassium hexacyanoferrate is 1: (30-50);
[0057] S2, the Fe 2+ / Zn 2+ Mixed salt (molar ratio 1:1, concentrations 0.1-0.2 mol / L) and polyvinylpyrrolidone / hyaluronic acid aqueous solution (0.05-0.2 mol / L) were uniformly mixed to obtain mixed solution B; among them, hyaluronic acid The molar ratio of polyvinylpyrrolidone mixture to Fe(II) and Zn(II) mixed salt is 1: (30-50); Fe 2+ / Zn 2+ Salt is preferred with sulfate and hydrochloride;
[0058] S3. Slowly add the mixed solution B to the mixed solution A, and heat to obtain an aqueous solution containing Prussian blue nanop...
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