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首页> 外文期刊>Journal of Applied Polymer Science >Fabrication and SERS application of the thermoresponsive nanofibers with monodisperse Au@Ag bimetallic nanorods loaded shells
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Fabrication and SERS application of the thermoresponsive nanofibers with monodisperse Au@Ag bimetallic nanorods loaded shells

机译：用单体分散Au @ Ag Bimetallic纳米棒的热响应纳米纤维的制造和SERS应用加载壳

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摘要

Monodisperse Au@Ag bimetallic nanorods (Au@AgNRs) with gold nanorod core and silver shell were introduced into the shells of the thermoresponsive nanofibers with core-shell structure by coaxial electrospinning technique using poly(N-isopropylacrylamide-co- N-hydroxymethylacrylamide) aqueous solution as core fluid and its Au@AgNRs mixture as shell fluid, followed by heat treatment. Their core-shell structure and the oriented alignment of the Au@AgNRs embedded within their shells along their axes were confirmed by transmission electron microscopy observation. The produced composite nanofibrous membrane has high stability in aqueous medium and more remarkable and faster thermoresponsiveness than our previously reported composite nanofibrous membrane with homogeneous Au@AgNRs distribution inside its constituent nanofibers. The smart composite nanofibrous membrane as a free-standing surface enhanced Raman spectroscopy substrate with temperature-dependent surface enhanced Raman spectroscopy efficiency from 25 to 50 degrees C and good reproducibility is able to be used to detect 10(-14) mol/L 4-mercaptobenzoic acid in aqueous solution at 50 degrees C. (C) 2017 Wiley Periodicals, Inc.
机译：通过同轴电纺丝技术将具有金纳米棒芯和银壳与金纳米棒芯和银壳的双金属纳米杆（Au @ AgNRS）引入热型纳米纤维的壳体中，通过同轴电纺丝技术，使用聚（N-异丙基丙烯酰胺 - 共羟甲基甲基丙烯酰胺）水性作为核心液及其Au @ AgNRS混合物作为壳液，其次是热处理。通过透射电子显微镜观察证实了它们沿其轴线嵌入其壳内的Au @ Agnrs的核心壳结构和定向对准。所生产的复合纳米纤维膜具有在水性介质中和更显着高稳定性和更快thermoresponsiveness比我们以前报道的复合纳米纤维膜与它的构成纳米纤维内部均匀的Au @ AgNRs分布。智能复合纳米纤维膜作为一个独立的表面增强拉曼光谱基板从25度至50度增强拉曼光谱效率Ç依赖于温度的表面和良好的再现性能够被用于检测10（-14）摩尔/ L 4-巯基苯甲酸在水溶液中50℃（c）2017 Wiley期刊，Inc。

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