印刷毛细管微流体设备及其在生物传感中的应用
Zhiyi Zhang1, Stephen Lang1, Kate Pearson1
1Advanced Electronic and Photonic Research Center, National Research Council Canada, Ottawa, ON K1A 0R6, Canada.
Micromachines
|November 25, 2023
概括
新的可打印微流体设备为纸质诊断提供了一个低成本,高容量的替代方案. 这些独立的设备利用毛细血管作用进行流体运输,并使敏感的葡萄糖检测成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
- 生物医学工程 生物医学工程
背景情况:
- 基于纸张的微流体设备可以实现低成本的诊断,但在样本量方面存在局限性.
- 现有的微流体技术往往需要复杂的制造工艺.
- 开发用于微流体应用的新型材料对于推进临床诊断至关重要.
研究的目的:
- 开发和描述通过直接打印制造的新型独立的微流体设备.
- 为了评估印刷设备的流体运输能力和样本体积处理.
- 用色度和电化学方法评估印刷微流体设备用于检测葡萄糖的性能.
主要方法:
- 在聚合物薄膜上直接打印功能材料,形成相互连接的孔隙.
- 毛细管作用在独立的微流体结构中进行流体传输.
- 用于检测葡萄糖的色度和电化学测定,包括检测极限 (LOD) 的确定.
主要成果:
- 通过打印成功制造了独立的微流体设备,通过打印连接毛孔.
- 通过毛细血管作用证明了流体的运输,处理比纸质设备更小的样本体积.
- 通过色度和电化学方法实现了与纸质设备相比的葡萄糖检测LOD.
- 在印刷过程中展示了微流体通道与电极的直接集成.
结论:
- 可打印的,独立的微流体设备为诊断提供了一个可行的,可扩展的,具有成本效益的平台.
- 印刷工艺适合大批量制造,并允许轻松集成电极.
- 这些设备代表了对临床检测和生物化学分析的有希望的进步.
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