一种ROS响应性水凝胶微针及其制备方法和应用

By designing ROS-responsive hydrogel microneedles, multi-level repair of photoaging was achieved, improving component utilization and targeting. This solved the problem that existing technologies could not effectively neutralize deep ROS and inhibit MMPs, and enabled multi-pathway synergistic intervention and dynamic synergistic management of photoaging.

CN121731199BActive Publication Date: 2026-07-17BEOGENE BIOTECH GUANGZHOU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEOGENE BIOTECH GUANGZHOU
Filing Date
2026-01-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing photoaging repair materials cannot effectively neutralize deep ROS, inhibit the continuous activation of MMPs, and are difficult to achieve precise activation and long-term regulation of damaged fibroblasts, lacking the ability to reverse damage to the dermal matrix network.

Method used

Design ROS-responsive hydrogel microneedles containing methacrylamide hyaluronic acid, tannic acid, methacrylamide collagen, and liposomes. Protect the active molecules through nano-encapsulation to achieve synergistic effects of UV shielding, MMP activity inhibition, and fibroblast regeneration. Construct a targeted transdermal carrier for dynamic synergistic management.

Benefits of technology

It achieves multi-level repair of photoaging, improves ingredient utilization and targeting, and forms an integrated "treatment-protection closed loop". At the same time, it achieves differentiated repair and multi-pathway synergistic intervention for different skin layers, solving the problems of "separation of treatment and prevention" and difficulty in sustaining effects in existing technologies.

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Abstract

本发明涉及一种ROS响应性水凝胶微针,所述ROS响应性水凝胶微针包括基底和针尖,所述基底包括甲基丙烯酰化透明质酸和单宁酸,所述针尖包括甲基丙烯酰化胶原蛋白和脂质体。所述脂质体还可以负载药物;所述药物包括红没药醇。所述ROS响应性水凝胶微针制备方法包括以下步骤:甲基丙烯酰化胶原蛋白的制备;脂质体的制备;甲基丙烯酰化透明质酸的制备;微针基底溶液的制备和ROS响应性水凝胶微针的制备。本发明水凝胶微针通过一体化设计,将UV屏蔽、抗氧化、抗炎和促愈合四大功能有机整合,从阻断损伤源头(UV)、中和自由基(抗氧化)、控制继发损伤(抗炎)到促进组织重建(促愈合),形成了全面且高效的皮肤修复方案。
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