一种海胆状碳纳米粒子负载的铜单原子纳米酶及其制备方法和应用

By preparing sea urchin-shaped copper single-atom nanozymes, the problem of copper single-atom nanozymes being taken up and aggregated by tumor cells was solved, achieving efficient tumor treatment and low-cost nanozyme synthesis.

CN118491519BActive Publication Date: 2026-07-17HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES
Filing Date
2024-04-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for synthesizing copper single-atom nanozymes are prone to aggregation, leading to instability in the bloodstream, which affects the effective uptake by tumor cells and the therapeutic effect. Furthermore, the synthesis conditions are complex and the cost is high.

Method used

Using dopamine hydrochloride as the carbon source and copper salt as the copper source, sea urchin-shaped copper single-atom nanozymes were prepared via hydrothermal reaction. Combined with simple centrifugation and drying steps, nanozymes with unique morphology were obtained.

Benefits of technology

It achieves efficient tumor cell uptake and tumor site aggregation, has excellent dual catalytic activity of peroxidase and glutathione peroxidase, improves tumor treatment efficiency, has low raw material cost and mild synthesis conditions.

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Abstract

本发明公开了一种海胆状碳纳米粒子负载的铜单原子纳米酶及其制备方法和应用,属于碳基纳米酶制备与生物医学技术领域。制备方法包括以下步骤:以盐酸多巴胺为碳源,以铜盐为铜源,以水为溶剂,通过水热反应得到海胆状铜单原子纳米酶。有益效果:本发明制备的铜单原子纳米酶,其表面独有的针刺结构,进一步赋予了该材料优异的细胞摄取能力和肿瘤部分聚集能力。该纳米酶具有优异的过氧化物酶和谷胱甘肽氧化酶双重活性,可以将三阴性乳腺癌细胞内的过量过氧化氢转化为具有毒性的羟基自由基杀伤癌细胞,同时消耗细胞内过表达的谷胱甘肽,阻碍有效杀伤物质的损耗,最终实现对肿瘤的高效催化治疗。
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