基于MoS2的水凝电容器纳米片和在葡萄糖监测中的应用
Yizhi Wang1,2, Jinwen Zhang2, Yusen Zhang1
1School of Intelligent Science and Control Engineering, Jinling Institute of Technology, Nanjing 211169, China.
Molecules (Basel, Switzerland)
|September 28, 2024
概括
本研究介绍了一种3D打印的微针贴片,用于糖尿病患者的持续血糖监测和药物输送. 该设备使用一种带有二硫化 (MoS2) 纳米片的新型水凝,可实现实时血糖测量和可控胰岛素释放.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 持续的葡萄糖监测和可控的药物输送对于控制糖尿病至关重要.
- 现有的技术难以同时实现非侵入性持续血糖监测和药物管理.
- 需要综合系统来改善糖尿病患者的慢性疾病管理.
研究的目的:
- 开发一种微流体微针贴片,用于同时持续测量血糖和降血糖药物.
- 将3D打印系统与新型水凝和基于555芯片的控制电路集成.
- 为了验证拟议的系统对最小侵入性糖尿病管理的有效性.
主要方法:
- 使用3D打印技术制造微流体芯片.
- 制备一种具有特定介电性质的聚乙烯醇-聚乙烯糖醇-二硫化物 (PVA-PEG-MoS2) 纳米板水凝.
- 在微流体芯片中集成一个微电容器,以检测由于葡萄糖度而导致的水凝透射率的变化.
- 基于555芯片的控制电路的设计,以将电容变化转换为用于测量葡萄糖和药物输送控制的方波信号.
- 使用红外光谱学和扫描电子显微镜 (SEM) 进行水凝交联结构的表征.
主要成果:
- 在水凝中,MoS2纳米片的临界兴奋剂质量分数被确定为2%以获得最佳介电性质.
- 电路设计和脉冲周期与葡萄糖度之间的关系得到了成功验证.
- 与串联连接相比,微电容器在微流体通道中的并行连接产生了改进的,线性化的血糖测量结果.
- 该系统展示了对最小侵入性连续血糖测量和低血糖药物的受控释放的能力.
结论:
- 拟议的3D打印的微流体微针贴片有效地整合了持续的葡萄糖监测和可控的药物输送.
- 使用具有特定介电性质的PVA-PEG-MoS2水凝是基于电容的葡萄糖传感机制的关键.
- 集成控制电路成功地将电容变化转化为可用于糖尿病管理的可操作数据.
- 这项技术对促进糖尿病等慢性疾病的管理具有重大前景.
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