Antibacterial silk thread suture line with dual-photoresponse function and preparation method thereof

A light-responsive, suture technology, applied in the field of silk sutures, can solve the problems of weak antibacterial effect of sutures and inability to achieve controllable degradation, and achieve the effects of controllability of degradation, safe use, and mild yellow light
CN111558080AInactive Publication Date: 2020-08-21NANCHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANCHANG UNIV
Publication Date
2020-08-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an antibacterial silk thread suture line with a dual-photoresponse function and a preparation method of the antibacterial silk thread suture line. The zinc nitrate hexahydrate,ammonia water and hexamethylenetetramine are used as main raw materials, after one-step reaction, the main raw materials react with sodium citrate, hydroxypropyl methyl cellulose, carbon powder and lignin, and an obtained product is subjected to freeze drying and microwave treatment to obtain porous zinc oxide; the porous zinc oxide is loaded on the silk thread to obtain the antibacterial silk thread suture line with the dual-photoresponse function, the antibacterial performance of the porous zinc oxide can be further enhanced under the excitation of yellow light, and the zinc oxide is heatedunder the excitation of near-infrared light, so that the degradation of the suture line is accelerated. The method has the advantages of simple and safe process, no need of adding an organic solvent,simple operation method, low requirements on equipment, and suitableness for large-scale production and industrialization.
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Description

technical field

[0001] The invention relates to the field of silk sutures, in particular to an antibacterial silk suture with dual light response functions and a preparation method thereof. Background technique

[0002] Surgical-site infection (SSI) remains a widespread problem in modern surgery. According to the Centers for Disease Control and Prevention (CDC), the overall incidence of SSI in the United States is estimated at 2.8%, which equates to 756,000 patients per year. Due to inconsistency between studies, the reported incidence of SSI in European countries ranges from 1.5% to 20%; however, the actual incidence of SSI should be underestimated, suggesting that SSI is also a significant problem in Europe. In my country, SSI is the third leading cause of nosocomial infection, second only to urinary system infection and pneumonia. Data show that SSI accounts for 14-16% of nosocomial infections among inpatients, 38% of nosocomial infections are related to SSI, and 2 / 3 of...

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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