Facile fabrication of microfluidic surface-enhanced Raman scattering devices via lift-up lithography.

Facile fabrication of microfluidic surface-enhanced Raman scattering devices via lift-up lithography.
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通过提升光刻轻松制造微流体表面增强拉曼散射装置

DOI:
10.1098/rsos.172034
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发表时间:
2018-04
影响因子:
3.5
通讯作者:
Ma H
Ma H
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Wu Y;Jiang Y;Zheng X;Jia S;Zhu Z;Ren B;Ma H

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我们描述了一种在微流控芯片中灵活集成表面增强拉曼散射(SERS)基板的简便且低成本的方法。简而言之,SERS 基底是通过金纳米粒子的静电组装来制造的,并通过随后的提升软光刻成型为设计的图案。 SERS微图案可以进一步方便地集成到微流体通道内。由此产生的微流控 SERS 芯片可以从透明玻璃窗进行超灵敏的原位 SERS 监测。凭借其简单性、功能性和成本效益的优点,该方法可以很容易地扩展到生物化学应用的光学微流体制造中。
We describe a facile and low-cost approach for a flexibly integrated surface-enhanced Raman scattering (SERS) substrate in microfluidic chips. Briefly, a SERS substrate was fabricated by the electrostatic assembling of gold nanoparticles, and shaped into designed patterns by subsequent lift-up soft lithography. The SERS micro-pattern could be further integrated within microfluidic channels conveniently. The resulting microfluidic SERS chip allowed ultrasensitive in situ SERS monitoring from the transparent glass window. With its advantages in simplicity, functionality and cost-effectiveness, this method could be readily expanded into optical microfluidic fabrication for biochemical applications.
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