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Cover Picture: Enhanced Peroxidase‐Like Properties of Graphene–Hemin‐Composite Decorated with Au Nanoflowers as Electrochemical Aptamer Biosensor for the Detection of K562 Leukemia Cancer Cells (Chem. Eur. J. 50/2016)
Author(s) -
Liu Jing,
Cui Meirong,
Niu Li,
Zhou Hong,
Zhang Shusheng
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201605142
Subject(s) - graphene , aptamer , hemin , biosensor , peroxidase , nanotechnology , nanoflower , composite number , materials science , nanoparticle , catalysis , chemistry , combinatorial chemistry , nanostructure , composite material , enzyme , heme , organic chemistry , genetics , biology
A new graphene‐family peroxidase‐mimetic reduced‐graphene‐oxide–hemin–Au‐nanoflower composite shows an enhanced catalytic activity compared to traditional graphene‐based composites modified with smooth Au nanoparticles. Based on this discovery, a smart electrochemical aptamer biosensor for K562 leukemia cancer cells is presented with good performance in selectivity and sensitivity, attributed to the excellent peroxidase‐mimetic catalytic activity of this composite. More information can be found in the Full Paper by H. Zhou, S. Zhang et al. on page 18001 ff.