气凝胶衬里毛细管作为用于水性样品拉曼信号增益的液芯波导：先进制造与性能表征

Aerogel-Lined Capillaries as Liquid-Core Waveguides for Raman Signal Gain of Aqueous Samples: Advanced Manufacturing and Performance Characterization.

作者信息

Spiske Felix, Jakob Lara Sophie, Lippold Maximilian, Rahimi Parvaneh, Joseph Yvonne, Braeuer Andreas Siegfried

机构信息

Institute of Thermal, Environmental and Resources' Process Engineering (ITUN), Technische Universität Bergakademie Freiberg (TUBAF), 09599 Freiberg, Germany.

Institute of Nanoscale and Biobased Materials (INBM), Technische Universität Bergakademie Freiberg (TUBAF), 09599 Freiberg, Germany.

出版信息

Sensors (Basel). 2024 Sep 14;24(18):5979. doi: 10.3390/s24185979.

DOI:10.3390/s24185979

PMID:39338724

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11435559/

Abstract

An advanced process for the manufacturing of aerogel-lined capillaries is presented; these are applicable as liquid-core waveguides for gaining the Raman signal of aqueous samples. With respect to the spin-coating process we have used so far for the manufacturing of aerogel-lined capillaries, the here-presented manufacturing process is advanced as it enables (i) the lining of longer capillaries, (ii) the adjustment of the lining-thickness via the lining velocity, and (iii) the reproducible generation of crack-free linings. The key parameters of the advanced process and their effect on the fabrication of aerogel-lined capillaries with optimal Raman signal gain are reported and related to the thickness and topography of the aerogel linings by the support of scanning electron microscopy.

摘要

本文介绍了一种制造气凝胶衬里毛细管的先进工艺；这些毛细管可用作液芯波导，以获取水性样品的拉曼信号。相对于我们迄今为止用于制造气凝胶衬里毛细管的旋涂工艺，本文所介绍的制造工艺更为先进，因为它能够（i）衬里更长的毛细管，（ii）通过衬里速度调整衬里厚度，以及（iii）可重复地生成无裂纹衬里。报告了该先进工艺的关键参数及其对具有最佳拉曼信号增益的气凝胶衬里毛细管制造的影响，并通过扫描电子显微镜的支持将其与气凝胶衬里的厚度和形貌相关联。