DNA-enhanced peroxidase-like activity of layered double hydroxide nanosheets and applications in H2O2 and glucose sensing

被引：55

作者：

Chen, Lijian ^{[1
]}

Sun, Kaifang ^{[1
]}

Li, Peipei ^{[1
]}

Fan, Xianzhong ^{[1
]}

Sun, Jianchao ^{[1
]}

Ai, Shiyun ^{[1
]}

机构：

[1] Shandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong, Peoples R China

来源：

NANOSCALE | 2013年 / 5卷 / 22期

基金：

中国国家自然科学基金;

关键词：

COLORIMETRIC DETECTION; CATALYTIC-ACTIVITY; NANOPARTICLES; OXIDE; BEHAVIOR; COMPLEX; FILMS;

D O I：

10.1039/c3nr03031h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

LDH nanosheets were obtained via continuous impaction and exfoliation by herring sperm DNA molecules using a constant vibration method. DNA-LDH nanohybrids were composed by electrostatic forces and they exhibited DNA-enhanced peroxidase-like activity. The morphology and structure of DNA-LDH nanohybrids were analyzed by transmission electron microscopy (TEM), selected-area electron diffraction (SAED), X-ray diffraction (XRD), and atomic force microscopy (AFM) characterization. On the basis of the high catalytic activity of DNA/CuAl-LDH nanosheets, a rapid, sensitive, and convenient approach was developed for colorimetric detection of H2O2 and blood glucose. This method can be potentially applied in medical diagnostics and biotechnology fields.

引用

页码：10982 / 10988

页数：7

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