Photothermal microfluidic-assisted self-cleaning effect for a highly reusable SERS sensor
Photothermal microfluidic-assisted self-cleaning effect for a highly reusable SERS sensor
复制标题
高度可重复使用的SERS传感器的光热微流体辅助自清洁效应
DOI：
10.1364/ol.434468
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发表时间：
2021-10-01
期刊：
影响因子：
3.6
通讯作者：
Xing, Xiaobo
中科院分区：
文献类型：
--
作者：
Liu, Shaojing;Zhong, Huiqing;Xing, Xiaobo
光流体和表面增强拉曼散射（Sers）传感的协同集成是一种新的分析技术，其提供了许多独特的特性，用于增强传感性能和简化微系统的设计。在这里，我们提出了一个可重复使用的光流Sers传感器集成Au纳米岛衬底（AuNIS）涂层光纤到微流控芯片。通过系统的实验和理论分析，该传感器能够基于其光-热-流体动力学能量转换特性实现有效的自清洁。该传感器对罗丹明6 G的检测限为10（-13）mol/L，增强因子为10（6）。我们的光热微流体辅助自清洁方法的光流体Sers传感器具有便携性，操作简单，清洁效率高的优点，这将提供一个新的，据我们所知，概念和方法的成本效益和可重复使用的传感器。(C)2021美国光学学会
The synergistic integration of optofluidic and surface enhanced Raman scattering (SERS) sensing is a new analytical technique that provides a number of unique characteristics for enhancing the sensing performance and simplifying the design of microsystems. Here, we propose a reusable optofluidic SERS sensor by integrating Au nanoisland substrate (AuNIS)-coated fiber into a microfluidic chip. Through both systematic experimental and theoretical analysis, the sensor enables efficient self-cleaning based on its optical-to-heat-hydrodynamic energy conversion property. Besides, the sensor exhibits the instrument detection limit down to 10(-13) mol/L and enhancement factor of 10(6) for Rhodamine 6G. Our optofluidic SERS sensor with such a photothermal microfluidic-assisted self-cleaning method has the advantages of portability, simple operation, and high cleaning efficiency, which will provide a new, to the best of our knowledge, concept and approach for cost-effective and reusable sensors. (C) 2021 Optical Society of America