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人工晶体学报 ›› 2026, Vol. 55 ›› Issue (4): 642-651.DOI: 10.16553/j.cnki.issn1000-985x.2025.0237

• 研究论文 • 上一篇    下一篇

纳米氧化亚铜颗粒的绿色制备、表征及抑菌性能

康腱清1(), 周孟焦2, 王洪宇1, 余山洪3, 康明1, 梁晓峰1,2()   

  1. 1.西南科技大学材料与化学学院,绵阳 621010
    2.四川中医药高等专科学校,绵阳市中药资源开发利用重点实验室,绵阳 621010
    3.好医生药业集团有限公司,绵阳 622651
  • 收稿日期:2025-11-15 出版日期:2026-04-20 发布日期:2026-05-19
  • 通信作者: 梁晓峰,教授。E-mail:XFLiang@swust.edu.cn
  • 作者简介:康腱清(1999—),女,四川省人,硕士研究生。E-mail:2472344862@qq.com
  • 基金资助:
    四川省科技计划重点研发项目(2022YFS0443);四川省中医药管理局科学技术研究专项课题(2023MS334)

Green Preparation, Characterization, and Antibacterial Properties of Nano-Sized Copper(I) Oxide Particles

KANG Jianqing1(), ZHOU Mengjiao2, WANG Hongyu1, YU Shanhong3, KANG Ming1, LIANG Xiaofeng1,2()   

  1. 1.School of Materials and Chemistry,Southwest University of Science and Technology,Mianyang 621010,China
    2.Mianyang Key Laboratory of Chinese Medicine Resources Development and Utilization,Sichuan College of Traditional Chinese Medicine,Mianyang 621010,China
    3.Good doctor Pharmaceutical Group Co. ,Ltd. ,Mianyang 622651,China
  • Received:2025-11-15 Online:2026-04-20 Published:2026-05-19

摘要: 本研究开发了一种利用川续断茎叶提取物绿色制备氧化亚铜(Cu2O)纳米颗粒的方法。通过UV-Vis、Raman、XRD、TEM、SEM、EDX、XPS等分析测试手段对制备样品的光学特性、微观形貌、物相结构等进行表征,并测试其抑菌活性。结果表明,以川续断茎叶提取物为还原剂制备出的Cu2O纳米颗粒为立方晶系(空间群为Pn3m),结晶良好且纯度高,其微观形貌呈现独特“花椰菜状”三维结构,元素组成中Cu与O的原子比约为2.12∶1。UV-Vis光谱在565 nm处观察到Cu2O的特征表面等离子体共振(SPR)吸收峰。抑菌实验表明,Cu2O纳米颗粒对大肠杆菌、金黄色葡萄球菌、枯草芽孢杆菌、铜绿假单胞菌均表现出显著的抑制效果,其最低抑菌浓度依次为1.000、0.125、0.125和0.250 mg/mL。研究结果为Cu2O纳米材料的制备提供了一种新颖环保的合成策略,也展现了该材料在抑菌领域的应用潜力。

关键词: 川续断茎叶; 氧化亚铜; 纳米颗粒; 抑菌活性; 绿色制备

Abstract: This study developed a green method for preparing cuprous oxide (Cu2O) nanoparticles using extracts from the stems and leaves of Dipsacus asper wall. The optical properties, microstructure, and phase composition of the prepared samples were characterized by analytical techniques such as UV-Vis, Raman, XRD, TEM, SEM, EDX, and XPS, and their antibacterial activity was also tested. The results show that the Cu2O nanoparticles prepared using Dipsacus asper wall stem and leaf extracts as the reducing agent are cubic system with space group of Pn3m, exhibiting good crystallinity and high purity. Their microscopic morphology reveals a unique three-dimensional “cauliflower-like” structure, with an atomic ratio of Cu to O approximately 2.12∶1 in elemental composition. UV-Vis spectrum shows the characteristic surface plasmon resonance (SPR) absorption peak of Cu2O at 565 nm. Antibacterial tests indicate that the Cu2O nanoparticles exhibit significant inhibitory effects against escherichia colistaphylococcus aureusbacillus subtilis, and pseudomonas aeruginosa, with minimum inhibitory concentrations of 1.000, 0.125, 0.125, and 0.250 mg/mL, respectively. The study not only provides a novel and eco-friendly strategy for the preparation of Cu2O nanomaterials but also demonstrates their potential applications in the field of antibacterial treatment.

Key words: Dipsacus asper wall stems and leaf; copper (Ⅰ) oxide; nanoparticle; antibacterial activity; green preparation

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