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Hydrogen Peroxide Vapor Sensing with Organic Core/ Sheath Nanowire Optical Waveguides

机译：有机芯/鞘纳米线光波导对过氧化氢的蒸气感测

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摘要

The development of sensing systems that can detect trace amount of hydrogen peroxide (H_2O_2) remains a major challenge in the field of bio-imaging, healthcare and anti-terrorism. Continuing efforts have been focused on detecting H_2O_2 by different strategies such as infrared/Raman spectroscopy, mass spectrometry, electrochemical method, colorimetric and fluorimetric detection. Generally these methods either require expensive bulky equipment and tedious sample preparation, or have poor selectivity and limits of detection. Therefore, the development of contrast agents that allow the expedient detection of H_2O_2 at low concentration is in demand. Peroxalate ester and its derivatives are typical chemiluminogenic compounds highly sensitive to H_2O_2. The reaction between peroxalate ester groups and H_2O_2 can generate a high-energy intermediate that may transfer energy to the fluorescent dye, resulting in efficient luminescence. This has been proved to be a promising strategy for the expedient and sensitive detecting of H_2O_2. However, they often suffer from poor portability and H_2O_2 sensing in solution only. Due to the widespread use and tox-icity (OSHA PEL = 1 ppm) of H_2O_2, vapor phase monitoring of H_2O_2 has become an important industrial health issue.
机译：可以检测痕量过氧化氢（H_2O_2）的传感系统的开发仍然是生物成像，医疗保健和反恐领域的主要挑战。一直致力于通过不同的策略检测H_2O_2，例如红外/拉曼光谱，质谱，电化学方法，比色和荧光检测。通常，这些方法要么需要昂贵的笨重设备和繁琐的样品制备，要么选择性差且检测极限差。因此，需要开发允许方便地检测低浓度的H_2O_2的造影剂。过草酸酯及其衍生物是对H_2O_2高度敏感的典型化学发光化合物。过草酸酯基团与H_2O_2之间的反应可以生成高能中间体，该中间体可以将能量转移到荧光染料上，从而实现有效的发光。事实证明，这对于方便，灵敏地检测H_2O_2是一种很有前途的策略。然而，它们通常仅在溶液中具有差的可移植性和H_2O_2感测。由于H_2O_2的广泛使用和毒性（OSHA PEL = 1 ppm），H_2O_2的气相监测已成为重要的工业健康问题。

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  • 来源
    《Advanced Materials》 |2012年第35期|194-199|共6页
  • 作者

    Jian Yao Zheng; Yongli Yan; Xiaopeng Wang; Wen Shi; Huimin Ma; Yong Sheng Zhao; Jiannian Yao;

  • 作者单位

    Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry Chinese Academy of Sciences Beijing 100190, China;

    Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry Chinese Academy of Sciences Beijing 100190, China;

    Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry Chinese Academy of Sciences Beijing 100190, China;

    Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry Chinese Academy of Sciences Beijing 100190, China;

    Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry Chinese Academy of Sciences Beijing 100190, China;

    Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry Chinese Academy of Sciences Beijing 100190, China;

    Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry Chinese Academy of Sciences Beijing 100190, China;

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