Highly Fluorescent Poly(dimethylsiloxane) For On-chip Temperature Measurements

Jianhua Zhou; Hui Yan; Yizhe Zheng; Hongkai Wu

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Highly Fluorescent Poly(dimethylsiloxane) For On-chip Temperature Measurements

机译：用于片上温度测量的高荧光聚二甲基硅氧烷

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This work describes a convenient method to generate a poly(dimethylsiloxane) (PDMS) composite containing ZnO quantum dots (QDs) for whole-chip temperature measurements. This composite is highly fluorescent and very sensitive to temperature changes (0.4nm℃~(-1), compared to 0.1 nm ℃~(-1) in commonly used CdSe QDs). It also shows extremely high fluorescent stability under various conditions over long time without phase separation or fluorescent changes. Both merits make this composite an ideal material for sensing temperature changes on microfluidic chips. The bonding between the QDs and PDMS is studied by comparing PDMS composites with ZnO QDs of different sizes, and a model is given to elucidate the high stability of this composite.

机译：这项工作描述了一种方便的方法来生成包含用于整个芯片温度测量的ZnO量子点（QD）的聚二甲基硅氧烷（PDMS）复合材料。这种复合材料具有很高的荧光性，并且对温度变化非常敏感（0.4nm℃〜（-1），而常用的CdSe量子点中的0.1nm℃〜（-1））。在长时间不同条件下，它也显示出极高的荧光稳定性，而不会发生相分离或荧光变化。这两个优点使该复合材料成为检测微流控芯片上温度变化的理想材料。通过比较PDMS复合材料与不同尺寸的ZnO QD，研究了QD与PDMS之间的键合，并给出了一个模型来阐明该复合材料的高稳定性。

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来源
《Advanced Functional Materials》 |2009年第2期|p.324-329|共6页
作者
Jianhua Zhou; Hui Yan; Yizhe Zheng; Hongkai Wu;
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Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong (P. R. China);

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正文语种 eng
中图分类无线电电子学、电信技术;
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Highly Fluorescent Poly(dimethylsiloxane) For On-chip Temperature Measurements

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