热敏和应变敏感的水凝具有可写入的基于透明度的动态记忆行为.
Huabiao Ye1,2, Ting Dong1,2,3, Shaohua Wu1,2
1College of Textile and Clothing, Qingdao University, 308 Ningxia Road, Qingdao 266071, P.R. China.
ACS applied materials & interfaces
|February 28, 2025
概括
研究人员开发了具有动态透明度的智能水凝,可以记住和忘记信息. 这些先进材料为健康监测和药物输送系统提供了新的可能性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 生物医学工程 生物医学工程
背景情况:
- 智能水凝敷料对于个人健康管理至关重要,需要光学透明度,伸展性和导电性.
- 目前的局限性包括弱感知元素和黑色导电聚合物的使用,阻碍了先进的水凝制造.
研究的目的:
- 开发具有可写入的动态记忆-忘记透明度行为的智能水凝.
- 创造一种能够感知环境刺激并存储/回忆信息的材料.
主要方法:
- 在现场降解和固定导电多多巴胺合的多皮罗尔 (PDA-PPy) 纳米点的降解和固定,将其转化为多多聚合物/多烯胺 (PNAc/PAM) 网络 (NIPAm-co-acrylic acid).
- 利用温度诱导的结构转移和pH依赖的质突来控制透明度和信息编码.
主要成果:
- 制造的水凝具有光学透明度 (~64.99%),伸展性 (~1052%),自粘性 (21-105 kPa) 和高导电性 (~0.8 S/m).
- 证明了温度诱导的可逆透明度控制和编程的动态记忆,用于基于pH刻的透明度演变的信息记忆-忘记-回忆.
- 作为近红外 (NIR) 光控制的药物释放载体和具有高应变灵敏度 (GF = 5.98) 和快速响应 (139 ms) 的软传感器,成功应用.
结论:
- 开发的智能水凝为先进的健康管理应用提供了一个新的平台,包括药物输送和可穿戴传感器.
- 独特的动态透明度和内存能力为复杂的生物集成设备铺平了道路.
- 该材料的性能解决了当前智能水凝开发的关键局限性.
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