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Shell-Isolated Nanoparticle-Enhanced Luminescence of Metallic Nanoclusters.
Li, Mei; Yuan, Peng; Chen, Qing-Qi; Lin, Long-Hui; Radjenovic, Petar M; He, Yong-Lin; Wang, Jing-Yu; Zhang, Fan-Li; Luo, Shi-Yi; Zheng, Nan-Feng; Zhang, San-Jun; Tian, Zhong-Qun; Li, Jian-Feng.
Afiliação
  • Li M; College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Energy, Department of Physics, Xiamen University, Xiamen 361005, China.
  • Yuan P; Science Experiment Center, Department of Pharmacy, Youjiang Medical College for Nationalities, Baise 533000, China.
  • Chen QQ; College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Energy, Department of Physics, Xiamen University, Xiamen 361005, China.
  • Lin LH; College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Energy, Department of Physics, Xiamen University, Xiamen 361005, China.
  • Radjenovic PM; College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Energy, Department of Physics, Xiamen University, Xiamen 361005, China.
  • He YL; College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Energy, Department of Physics, Xiamen University, Xiamen 361005, China.
  • Wang JY; College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Energy, Department of Physics, Xiamen University, Xiamen 361005, China.
  • Zhang FL; College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Energy, Department of Physics, Xiamen University, Xiamen 361005, China.
  • Luo SY; College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Energy, Department of Physics, Xiamen University, Xiamen 361005, China.
  • Zheng NF; College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Energy, Department of Physics, Xiamen University, Xiamen 361005, China.
  • Zhang SJ; College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Energy, Department of Physics, Xiamen University, Xiamen 361005, China.
  • Tian ZQ; State Key Laboratory of Precision Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China.
  • Li JF; College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Energy, Department of Physics, Xiamen University, Xiamen 361005, China.
Anal Chem ; 92(10): 7146-7153, 2020 05 19.
Article em En | MEDLINE | ID: mdl-32297736
ABSTRACT
Metallic nanoclusters (NCs) have molecular-like structures and unique physical and chemical properties, making them an interesting new class of luminescent nanomaterials with various applications in chemical sensing, bioimaging, optoelectronics, light-emitting diodes (LEDs), etc. However, weak photoluminescence (PL) limits the practical applications of NCs. Herein, an effective and facile strategy of enhancing the PL of NCs was developed using Ag shell-isolated nanoparticle (Ag SHIN)-enhanced luminescence platforms with tuned SHINs shell thicknesses. 3D-FDTD theoretical calculations along with femtosecond transient absorption and fluorescence decay measurements were performed to elucidate the enhancement mechanisms. Maximum enhancements of up to 231-fold for the [Au7Ag8(C≡CtBu)12]+ cluster and 126-fold for DNA-templated Ag NCs (DNA-Ag NCs) were achieved. We evidenced a novel and versatile method of achieving large PL enhancements with NCs with potential for practical biosensing applications for identifying target DNA in ultrasensitive surface analysis.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article