Label-free detection of sulfide ions based on fluorescence quenching of unmodified core-shell Au@Ag nanoclusters

被引:37
|
作者
Wang, Zhong-Xia [1 ]
Zheng, Chun-Lan [1 ]
Ding, Shou-Nian [1 ]
机构
[1] Southeast Univ, Sch Chem & Chem Engn, Jiangsu Optoelect Funct Mat & Engn Lab, Nanjing 211189, Jiangsu, Peoples R China
来源
RSC ADVANCES | 2014年 / 4卷 / 19期
关键词
SELECTIVE DETERMINATION; GOLD NANOCLUSTERS; METHYLENE-BLUE; QUANTUM DOTS; GLUTATHIONE; SENSOR; NANOPARTICLES; FLUOROPHORES; CLUSTER; PROBES;
D O I
10.1039/c3ra45019h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Based on the principle of fluorescence quenching, by the interaction between S2- ions and the Ag atoms/ions on the surface of the core-shell Au@Ag NCs, we propose a simple label-free method for the detection of S2- ions with high selectivity and sensitivity by using fluorescent core-shell Au@Ag NCs in aqueous media.
引用
收藏
页码:9825 / 9829
页数:5
相关论文
共 50 条
  • [31] Rapid Epitaxial Growth of Ag on Au Nanoparticles: From Au Nanorods to Core-Shell Au@Ag Octahedrons
    Sanchez-Iglesias, Ana
    Carbo-Argibay, Enrique
    Glaria, Arnaud
    Rodriguez-Gonzalez, Benito
    Perez-Juste, Jorge
    Pastoriza-Santos, Isabel
    Liz-Marzan, Luis M.
    CHEMISTRY-A EUROPEAN JOURNAL, 2010, 16 (19) : 5558 - 5563
  • [32] A fluorescent aptasensor for amplified label-free detection of adenosine triphosphate based on core-shell Ag@SiO2 nanoparticles
    Song, Quanwei
    Peng, Manshu
    Wang, Le
    He, Dacheng
    Ouyang, Jin
    BIOSENSORS & BIOELECTRONICS, 2016, 77 : 237 - 241
  • [33] Visual sensing of Hg2+ using unmodified Au@Ag core–shell nanoparticles
    Li L.
    Feng D.
    Fang X.
    Han X.
    Zhang Y.
    Journal of Nanostructure in Chemistry, 2014, 4 (3)
  • [34] Fluorescence enhancement and quenching of Eu3+ ions by Au-ZnO core-shell and Au nanoparticles
    Haldar, Krishna Kanta
    Patra, Amitava
    APPLIED PHYSICS LETTERS, 2009, 95 (06)
  • [35] Preparation of Au@Ag Core-shell Nanorods and Investigation of Its Surface Plasmon
    Yuan, Wei
    Wang, Peijie
    Fang, Yan
    ADVANCED ENGINEERING MATERIALS II, PTS 1-3, 2012, 535-537 : 446 - 449
  • [36] Growth of Au@Ag Core-Shell Pentatwinned Nanorods: Tuning the End Facets
    Zhang, Weiqing
    Goh, Hao Ying Johnny
    Firdoz, Shaik
    Lu, Xianmao
    CHEMISTRY-A EUROPEAN JOURNAL, 2013, 19 (38) : 12732 - 12738
  • [37] A label-free SERS probe for highly sensitive detection of Hg2+ based on functionalized Au@Ag nanoparticles
    Zeng, Yi
    Wang, Lihua
    Zeng, Lingwen
    Shen, Aiguo
    Hu, Jiming
    TALANTA, 2017, 162 : 374 - 379
  • [38] Synthesis and characterization of Au at Ag core-shell nanoparticles from unmodified apoferritin
    Li, Tao
    Lee, Byeongdu
    Winans, Randall E.
    Chattopadhyay, Soma
    Shibata, Tomohiro
    Cooks, Russell E.
    Miller, Jeffery E.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2012, 243
  • [39] Fabrication of Au@Ag Core-Shell Nanoparticles Using Polyelectrolyte Multilayers as Nanoreactors
    Zhang, Xin
    Wang, Hui
    Su, Zhaohui
    LANGMUIR, 2012, 28 (44) : 15705 - 15712
  • [40] A novel colorimetric biosensor based on non-aggregated Au@Ag core-shell nanoparticles for methamphetamine and cocaine detection
    Mao, Kang
    Yang, Zhugen
    Li, Junrong
    Zhou, Xiaodong
    Li, Xiqing
    Hu, Jiming
    TALANTA, 2017, 175 : 338 - 346