基于无纺布检测浓度的微流控装置

Microfluidic device based on non-woven fabric detection concentration

目前微流控器件主要由玻璃或聚合物材料制成,而无纺布具有成本低、易加工、一次性等优点,为微流体材料提供了一种新的选择。本研究把蜡印染在无纺布上制备微流控器件,可以形成有效的蜡印通道,控制流体在内部通道扩散和流动。并把不同浓度的红色水溶性染料滴到通道中,利用图像处理算法检测其灰度值做浓度比对,发现在特定浓度下,灰度值呈现近似线性规律,可将其推广到生物医学现场检测等领域。

Current microfluidic devices are mainly made of glass or polymer materials.Non-woven fabrics have the advantages of low cost,easy processing,and disposable properties,providing a new choice for niicrofluidic materials.In this study,microfluidic devices prepared by printing and dyeing wax on non-woven fabrics can form effective wax print channels and control the diffusion and flow of fluid in the internal channels.And the red water-soluble dyes with different concentrations were dropped into the channel,and the gray value was detected by the image processing algorithm for concentration comparison.It was found that the dye concentration showed an approximately linear rule at a special concentration,which could be extended to biological medical field testing and other fields.