Preparation method of freeze-dried medical dressing and freeze-dried medical cold compress

Abstract

The invention discloses a preparation method of a freeze-dried medical dressing and a freeze-dried medical cold compress. The preparation method comprises: using an expression vector T7 promoter-lac operator-target protein-6xHis-T7 tag region-6xHis-T7 terminator, The episome lac‑rop‑bom‑ori‑kanR, ori system constructs and synthesizes a plasmid; mixes the plasmid with a competent bacterial suspension and cultures; induces the bacterial liquid by IPTG, ferments, and elutes to obtain the target protein; adds oligopeptide‑ 1. D-limonene, glycerin, target protein, sodium hyaluronate, HA-800 hyaluronic acid, ceramide, white fungus extract, EDTA-disodium and chitosan, shearing, degassing, and low-temperature evaporation of the mixed solution Evaporated and freeze-dried to form a freeze-dried medical dressing. Through the technical scheme of the invention, the purity, activity and applicability of the target protein are improved, the stability of the cold compress is improved, the utilization rate of active substances is improved, and the use is flexible.

Description

technical field [0001] The invention relates to the field of medical materials and biotechnology, in particular to a preparation method of a freeze-dried medical dressing and a freeze-dried medical cold compress. Background technique [0002] Medical dressings are medical materials commonly used to cover sores, wounds or other damage, including natural gauze, synthetic fiber dressings, etc. Medical dressings can prevent wound re-injury, properly regulate the temperature and humidity of the wound, reduce complications and prevent infection during the natural healing process. However, existing dressings still have disadvantages such as poor absorption of exudate, poor air permeability, and poor antibacterial effect. In addition, such products are inconvenient to carry and cannot be used anytime and anywhere, and the skin healing effect after wound healing is not good. Contents of the invention [0003] Aiming at at least one of the above problems, the present invention prov...

AI Technical Summary

Problems solved by technology

However, the existing dressings still have disadvantages such as poor absorption of exudate, poor air permeability, and poor antibacterial effect. In addition, this type of product is inconvenient to carry and cannot be used anytime and anywhere, and the skin healing effect after wound healing is not good.

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