一种含有大鲵皮肤分泌物的非对称纳米纤维膜及其制备方法和应用

By preparing asymmetric nanofiber membranes containing secretions from the skin of giant salamanders, the problems of pain and secondary damage during wound dressing changes have been solved, enabling painless dressing changes and tissue regeneration, and exhibiting good biocompatibility and antibacterial properties.

CN116607266BActive Publication Date: 2026-07-17UNIV OF SCI & TECH BEIJING

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF SCI & TECH BEIJING
Filing Date
2023-05-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing wound dressings are prone to causing pain and secondary injury when changed, and it is difficult to achieve painless changes during wound healing. They also lack effective adhesion and biocompatibility.

Method used

Asymmetric nanofiber membranes were prepared by configuring polylactic acid electrospinning solution and gelatin-salamander mixed spinning solution. The polylactic acid outer layer isolates moisture and bacteria, while the gelatin inner layer adheres strongly to the wound. Combined with thermopressing technology, a self-adhesive dressing is formed. The gelatin layer can be decomposed after repair, enabling painless replacement.

Benefits of technology

It achieves self-adhesion and painless replacement of wound dressings, promotes tissue regeneration, has good biocompatibility and antibacterial properties, avoids secondary damage and pain, and is suitable for dynamic wound management.

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Abstract

本发明涉及医用敷料技术领域,提供了一种含有大鲵皮肤分泌物的非对称纳米纤维膜及其制备方法和应用。本发明将聚乳酸静电纺丝溶液和明胶大鲵混合纺丝液分别进行静电纺丝,制备成聚乳酸纳米纤维膜以及明胶大鲵混合纳米纤维膜,并对部分明胶大鲵混合纳米纤维膜进行交联,将明胶大鲵混合纳米纤维膜、交联的明胶大鲵混合纳米纤维膜和聚乳酸纳米纤维膜依次叠加热压,得到含有大鲵皮肤分泌物的非对称纳米纤维膜。本发明提供的非对称纳米纤维膜敷料能够自主粘附在伤口表面进行伤口修复,在敷料表面进行极短时间的降温即可将其从皮肤表面取下,短暂的降温过程也可在减轻患者伤口疼痛感的同时实现无痛敷料更换。
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