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Thermal responsive fluorescent nanocomposites based on carbon dots

机译：基于碳点的热响应荧光纳米复合材料

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摘要

Currently, a broad series of methods to obtain photoluminescent (PL) carbon dots (CDs) have been developed. CDs are novel fluorescent materials with the advantages of easy chemical modifications, chemical stability, biocompatibility as well as low toxicity. As a result, nanocomposites based on CDs have great potential for functional applications. In this paper, poly(N-isopropylacrylamide) (PNIPAM)/CDs composites have been used as a temperature sensor. The detection signal is luminescence which possesses high sensitivity, improved facility and provides the possibility for visual detection. With the temperature increasing, the fluorescence intensity of the composites decreased sharply at around 32 degrees C with the existence of PNIPAM. The composites show perfect reversibility after 12 heating and cooling processes. Moreover, compared with CDs, the CD composites also show good UV resistance at high power UV exposure.
机译：目前，已经开发了一种获得光致发光（PL）碳点（CD）的广泛的方法。 CD是新型荧光材料，具有易化学修饰，化学稳定性，生物相容性以及低毒性的优点。 结果，基于CD的纳米复合材料具有很大的功能应用的潜力。 本文已用作温度传感器的聚（N-异丙基丙烯酰胺）（PNIPAM）/ CDS复合材料。 检测信号是具有高灵敏度，改进的设施的发光，并提供可视检测的可能性。 随着温度升高，复合材料的荧光强度随着泊腓的存在，复合材料的荧光强度在约32℃下急剧下降。 复合材料在12次加热和冷却过程后显示出完美的可逆性。 此外，与CD相比，CD复合材料还在高功率UV暴露时显示出良好的紫外线电阻。

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  • 来源
    《RSC Advances》 |2015年第20期|共7页
  • 作者

    Zhao Xiaohuan; Zhu Shoujun; Song Yubin; Zhang Junhu; Yang Bai;

  • 作者单位

    Jilin Univ Coll Chem State Key Lab Supermol Struct &

    Mat Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem State Key Lab Supermol Struct &

    Mat Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem State Key Lab Supermol Struct &

    Mat Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem State Key Lab Supermol Struct &

    Mat Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem State Key Lab Supermol Struct &

    Mat Changchun 130012 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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