AgcuTe nanowire composite material, preparation method thereof and application thereof in medical nursing antibacterial gauze

By preparing AgCuTe nanowire composite materials and loading them onto medical gauze, and utilizing near-infrared light irradiation to achieve photothermal conversion, the problem of existing antibacterial dressings relying on antibiotics is solved, providing an efficient and controllable antibacterial solution suitable for wound care and postoperative protection.

CN122355244APending Publication Date: 2026-07-10YANGZHOU FIRST PEOPLES HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YANGZHOU FIRST PEOPLES HOSPITAL
Filing Date
2026-04-23
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing medical antibacterial dressings mainly rely on antibiotics or silver ions, which can easily induce bacterial resistance with long-term use. Furthermore, there is a lack of near-infrared light responsive nano-photothermal functional materials that are not drug-dependent for use in gauze products.

Method used

The AgCuTe nanowire composite material, composed of Cu7Te4 and Ag2Te phases, is a one-dimensional nanowire morphology. It is prepared by hydrothermal reaction and liquid phase displacement method, loaded onto medical gauze, and photothermal conversion antibacterial effect is achieved by near-infrared light irradiation.

Benefits of technology

It achieves a controllable photothermal synergistic antibacterial effect, reduces the risk of bacterial resistance, is suitable for wound care and postoperative protection, and has good photothermal stability and biosafety.

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Abstract

An AgCuTe nanowire composite material, its preparation method, and its application in medical antibacterial gauze are disclosed. The material consists of two phases: Cu7Te4 and Ag2Te, exhibiting a one-dimensional nanowire morphology with uniform silver distribution and nanowire diameters ranging from 7 to 9 nm. This material is prepared via a tellurium nanowire template combined with a two-step liquid-phase displacement reaction. First, tellurium nanowires are synthesized hydrothermally, followed by sequential reactions with copper and silver sources at room temperature to obtain the product. The AgCuTe nanowires exhibit concentration-dependent and power-dependent photothermal heating effects under 808 nm near-infrared light irradiation, with good photothermal stability. Under near-infrared light irradiation, the material demonstrates significant synergistic antibacterial activity against Staphylococcus aureus and Escherichia coli. Loading this material onto medical gauze can produce a near-infrared responsive photothermal antibacterial dressing for wound care and infection control, without antibiotic dependence, thus helping to reduce the risk of bacterial resistance.
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