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Mechanism of Surface-Enhanced Raman Scattering and Its Application to Highly Sensitive Protein Detection

光谱学与光谱分析 2009年第2期29卷 396-398页

作者： Ozaki y Itoh T yoshida K kitahama y Han X X Zhao B School of Science and Technology Kwansei Gakuin University Sanda Hyogo Japan Health Technology Research Center National Institute of Advanced Industrial Science and Technology (AIST) Takamatsu Kagawa Japan State Key Laboratory of Supramolecular Structure and Materials Jilin University Changchun 130012 China

Surface-enhanced resonance Raman scattering(SERRS)has recently attracted great interest in analytical science due toenormous enhancement factors that have decreased the detec-tionli mits of a wide variety of molecules... 详细信息

关键词：共振拉曼散射电磁群电磁波单分子灵敏度

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Mechanism of Surface-Enhanced Raman Scattering and Its Application to Highly Sensitive Protein Detection

Mechanism of Surface-Enhanced Raman Scattering and Its Appli...

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第十五届全国分子光谱学术报告会

作者： Ozaki y Itoh T yoshida K kitahama y School of Science and Technology Kwansei Gakuin University Health Technology Research Center National Institute of Advanced Industrial Science and Technology (AIST) Health Technology Research Center National Institute of Advanced Industrial Science and Technology (AIST)

＜正＞Surface-enhanced resonance Raman scattering（SERRS） has recently attracted great interest in an-alytical science due to enormous enhancement factors that have

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Optical Properties of Chiral Azo-Schiff Base Mn(II) and Zn(II) Complexes with Silver Nanoparticles

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Journal of Materials Science and Chemical Engineering 2021年第4期9卷 1-10页

作者： Kazuya Saiga Tomoyuki Haraguchi yasutaka kitahama Takuya Hosokai Hiroyuki Matsuzaki Dohyun Moon Mutsumi Sugiyama Michikazu Hara Takashiro Akitsu Department of Chemistry Faculty of Science Tokyo University of Science Tokyo Japan National Institute of Advanced Industrial Science and Technology Tsukuba Japan Pohang Accelerator Laboratory Pohang Korea Department of Electrical Engineering Faculty of Science and Technology Tokyo University of Science Noda Japan Materials and Structures Laboratory Tokyo Institute of Technology Yokohama Japan

Herein we have originally designed chiral azo-salen Mn(II) and Zn(II) complexes for interacting silver nanoparticles (AgNPs) exhibiting localized surface plasmon resonance (LSPR). Understanding excited state and reac... 详细信息

yle="text-align:justify;"> Herein we have originally designed chiral azo-salen Mn(II) and Zn(II) complexes for interacting silver nanoparticles (AgNPs) exhibiting localized surface plasmon resonance (LSPR). Understanding excited state and reaction intermediate during light irradiation to return to ground state may be important for such composite systems. Therefore, we investigated such optical properties for systems using time-resolved luminescence and transient absorption measurements. DMSO solutions of the four newly prepared and characterized complexes (MMn, MZn, CMn, and CZn) and ethanol solutions of the composite materials of each complex with AgNPs were served for optical measurements. The time-correlated single photon counting (TCSPC), the streak camera which is much shorter period of time than TCSPC and transient absorption measurement, was performed for the eight samples. The fluorescence lifetime of the sole complexes and the composite materials with AgNPs was derived from curve-fitting analysis of luminescence decay curves of TCSPC. Lifetime of the composite systems with AgNPs was longer than that of the corresponding sole metal complexes for three cases. It was revealed that composite systems may go through three reaction intermediates during relaxation from excited state to ground state.

关键词： Schiff Base Metal Complexes Azobenzene Silver Nanoparticles Fluorescence Lifetime

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Optical Properties of Chiral Azo-Schiff Base Mn（Ⅱ） and Zn（Ⅱ） Complexes with Silver Nanoparticles

Optical Properties of Chiral Azo-Schiff Base Mn（Ⅱ） and Zn...

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Herein we have originally designed chiral azo-salen Mn（Ⅱ） and Zn（Ⅱ） complexes for interacting silver nanoparticles（AgNPs） exhibiting localized surface plasmon resonance（LSPR）. Understanding excited state and reaction intermediate during light irradiation to return to ground state may be important for such composite systems. Therefore, we investigated such optical properties for systems using time-resolved luminescence and transient absorption measurements. DMSO solutions of the four newly prepared and characterized complexes（MMn, MZn, CMn, and CZn） and ethanol solutions of the composite materials of each complex with AgNPs were served for optical measurements. The time-correlated single photon counting（TCSPC）,the streak camera which is much shorter period of time than TCSPC and transient absorption measurement, was performed for the eight samples. The fluorescence lifetime of the sole complexes and the composite materials with AgNPs was derived from curve-fitting analysis of luminescence decay curves of TCSPC. Lifetime of the composite systems with AgNPs was longer than that of the corresponding sole metal complexes for three cases. It was revealed that composite systems may go through three reaction intermediates during relaxation from excited state to ground state.

关键词： Schiff Base Metal Complexes Azobenzene Silver Nanoparticles Fluorescence Lifetime

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