A kind of ferric oxide bismuth sulfide nanocomposite material and its preparation and application

A nano-composite material, ferric oxide technology, applied in wave energy or particle radiation treatment materials, drug combinations, X-ray contrast agent preparation, etc., can solve the lack of image information, poor cell compatibility, utilization efficiency of photothermal materials low problems, to achieve the effects of excellent photothermal conversion efficiency, easy preparation, and good biocompatibility
CN111228489BActive Publication Date: 2022-08-02UNIV OF SHANGHAI FOR SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF SHANGHAI FOR SCI & TECH
Publication Date
2022-08-02

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Abstract

The invention discloses a ferric oxide / bismuth sulfide nanocomposite material and its preparation. The preparation method is: the Fe 3 O 4 and dopamine are dispersed in Tris-HCl buffer solution to obtain Fe 3 O 4 @PDA nanoparticles; the bismuth source was dispersed in the solvent and then added dropwise to the bovine serum albumin solution to obtain BSA‑Bi 2 S 3 particles; Fe 3 O 4 @PDA nanoparticles dispersed into Na 2 HPO 4 ‑NaH 2 PO 4 buffer solution, add BSA‑Bi 2 S 3 particles, to obtain Fe 3 O 4 @PDA@BSA‑Bi 2 S 3 nanoparticles. The product obtained by the invention is easy to prepare and non-toxic, and has good biocompatibility, colloid stability and MRI&CT contrast effect at the level of cells and animals.
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Description

technical field

[0001] The invention relates to a contrastable bismuth ferric oxide bismuth sulfide nanocomposite material and its preparation and application, and belongs to the technical field of biological nanomaterials. Background technique

[0002] Cancer (malignant tumor) is a large class of diseases characterized by abnormal cell proliferation and metastasis, and has become a major threat to human health and survival. Current clinical treatments for cancer include surgical resection, chemotherapy, and physical radiation therapy. Its main features are that surgery cannot completely remove all cancer cells in the human body under normal circumstances, and it is easy to relapse; chemotherapy uses drugs to kill cancer cells, but it is easy to develop drug resistance in the process of treatment; and physical radiation therapy will cause patients. Great harm and side effects. Therefore, early screening and diagnosis of cancer can help to formulate a reasonable treatment p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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