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Shell-Isolated Nanoparticle-Enhanced Phosphorescence.
Meng, Meng; Zhang, Fan-Li; Yi, Jun; Lin, Long-Hui; Zhang, Cui-Ling; Bodappa, Nataraju; Li, Chao-Yu; Zhang, San-Jun; Aroca, Ricardo F; Tian, Zhong-Qun; Li, Jian-Feng.
Afiliação
  • Meng M; MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Physics, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.
  • Zhang FL; MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Physics, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.
  • Yi J; MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Physics, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.
  • Lin LH; MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Physics, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.
  • Zhang CL; State Key Laboratory of Precision Spectroscopy, Department of Physics , East China Normal University , Shanghai 200242 , China.
  • Bodappa N; MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Physics, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.
  • Li CY; MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Physics, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.
  • Zhang SJ; State Key Laboratory of Precision Spectroscopy, Department of Physics , East China Normal University , Shanghai 200242 , China.
  • Aroca RF; Department of Chemistry and Biochemistry , University of Windsor , Windsor , Ontario N9B 3P4 , Canada.
  • Tian ZQ; MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Physics, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.
  • Li JF; MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Department of Physics, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.
Anal Chem ; 90(18): 10837-10842, 2018 09 18.
Article em En | MEDLINE | ID: mdl-30136575
ABSTRACT
The emerging field of plasmonics has promoted applications of optical technology, especially in plasmon-enhanced spectroscopy (PES). However, in plasmon-enhanced fluorescence (PEF), "metal loss" could significantly quench the fluorescence during the process, which dramatically limits its applications in analysis and high-resolution imaging. In this report, silver core silica shell-isolated nanoparticles (Ag@SiO2 NPs or SHINs) with a tunable thickness of shell are used to investigate the interactions between NPs and emitters by constructing coupling and noncoupling modes. The plasmonic coupling mode between Ag@SiO2 NPs and Ag film reveals an exceeding integrating spectral intensity enhancement of 330 and about 124 times that of the radiative emission rate acceleration for shell-isolated nanoparticle enhanced phosphorescence (SHINEP). The experimental findings are supported by theoretical calculations using the finite-element method (FEM). Hence, the SHINEP may provide a novel approach for understanding the interaction of plasmon and phosphorescence, and it holds great potential in surface detection analysis and singlet-oxygen-based clinical therapy.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article