CdSe/ZnS quantum dot-Cytochrome c bioconjugates for selective intracellular O2•- sensing

被引:49
作者
Li, Da-Wei [1 ,2 ]
Qin, Li-Xia [1 ,2 ]
Li, Yang [1 ,2 ]
Nia, Raheleh Partovi [3 ]
Long, Yi-Tao [1 ,2 ]
Chen, Hong-Yuan [4 ]
机构
[1] E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China
[2] E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China
[3] Univ Western Ontario, London, ON N6A 3K7, Canada
[4] Nanjing Univ, Dept Chem, Nanjing 210093, Peoples R China
基金
中国国家自然科学基金;
关键词
LIVE CELLS; MODIFIED ELECTRODES; IN-VIVO; SUPEROXIDE; SEMICONDUCTOR; SENSORS; GENERATION; INTERFACE; RADICALS;
D O I
10.1039/c1cc13160e
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We demonstrate that the coupling system of negatively capped CdSe/ZnS QDs with an oxidized Cytochrome c (Cyt c) is capable of the fluorescent imaging of a superoxide radical (O-2(center dot-)) with high sensitivity and specificity in living cells, without interference from other Reactive Oxygen Species (ROS) or relevant intracellular components.
引用
收藏
页码:8539 / 8541
页数:3
相关论文
共 24 条
[1]   A ratiometric luminescent oxygen sensor based on a chemically functionalized quantum dot [J].
Amelia, Matteo ;
Lavie-Cambot, Aurelie ;
McClenaghan, Nathan D. ;
Credi, Alberto .
CHEMICAL COMMUNICATIONS, 2011, 47 (01) :325-327
[2]   A superoxide sensor based on a multilayer cytochrome c electrode [J].
Beissenhirtz, MK ;
Scheller, FW ;
Lisdat, F .
ANALYTICAL CHEMISTRY, 2004, 76 (16) :4665-4671
[3]   Mitochondria superoxide dismutase mimetic inhibits peroxide-induced oxidative damage and apoptosis: Role of mitochondrial superoxide [J].
Dhanasekaran, A ;
Kotamraju, S ;
Karunakaran, C ;
Kalivendi, SV ;
Thomas, S ;
Joseph, J ;
Kalyanaraman, B .
FREE RADICAL BIOLOGY AND MEDICINE, 2005, 39 (05) :567-583
[4]   Biosensing and Probing of Intracellular Metabolic Pathways by NADH-Sensitive Quantum Dots [J].
Freeman, Ronit ;
Gill, Ron ;
Shweky, Itzhak ;
Kotler, Moshe ;
Banin, Uri ;
Willner, Itamar .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (02) :309-313
[5]   Conjugating Luminescent CdTe Quantum Dots with Biomolecules [J].
Gerhards, Christina ;
Schulz-Drost, Christian ;
Sgobba, Vito ;
Guldi, Dirk M. .
JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (46) :14482-14491
[6]  
Halliwell B., 1999, Free Radicals in Biology and Medicine, V3 rd, P617
[7]  
Harrison DG, 1997, CLIN CARDIOL, V20, P11
[8]   Hydrocyanines: A Class of Fluorescent Sensors That Can Image Reactive Oxygen Species in Cell Culture, Tissue, and In Vivo [J].
Kundu, Kousik ;
Knight, Sarah F. ;
Willett, Nick ;
Lee, Scingmun ;
Taylor, W. Robert ;
Murthy, Niren .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (02) :299-303
[9]   Reactivity of superoxide anion radical with a perchlorotriphenylmethyl (trityl) radical [J].
Kutala, Vijay Kumar ;
Villamena, Frederick A. ;
Ilangovan, Govindasamy ;
Maspoch, Daniel ;
Roques, Nans ;
Veciana, Jaume ;
Rovira, Concepcio ;
Kuppusamy, Periannan .
JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (01) :158-167
[10]   Detection of hydrogen peroxide produced at a liquid/liquid interface using scanning electrochemical microscopy [J].
Li, Fei ;
Su, Bin ;
Salazar, Fernando Cortes ;
Nia, Raheleh Partovi ;
Girault, Hubert H. .
ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (02) :473-476