Co3O4-binuclear phthalocyanine nanocomposites with enhanced peroxidase-like activity for sensitive detection of glutathione

被引：8
作者：
Kong, Xia [1 ]
Yang, Rufeng [1 ]
Li, Yongguang [1 ]
Wei, Ying [1 ]
Sun, Yilan [1 ]
Lyu, Haoyuan [1 ]
Yin, Dexin [1 ]
Zhu, Xixi [1 ]
Lu, Guang [1 ]
Liu, Qingyun [1 ]
机构：
[1] Shandong Univ Sci & Technol, Coll Chem & Biol Engn, Qingdao 266590, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2021年 / 615卷
基金：
中国国家自然科学基金;
关键词：
Binuclear phthalocyanine; Co3O4; Peroxidase mimic; Colorimetric; Glutathione; RAPID COLORIMETRIC DETECTION; PRUSSIAN BLUE NANOPARTICLES; GOLD NANOPARTICLES; H2O2; NANOSPHERES; OXIDATION; CATALYST; OXIDASE; COMPLEX;
D O I：
10.1016/j.colsurfa.2021.126261
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A novel peroxidase-like enzyme based on Co3O4 with binuclear phthalocyanine bis(7,8,12,13,17,18-hexakis(2,6-dimethylphenoxy) [g,L,q]-5,10,15,20-tetraazaporphyrinate)[b,e]benzene linked binuclear phthalocyanine (BiPc (OC8H9)(12)) as support was synthesized by a facile and simple method. The Co3O4 nanocomposites were dispersed on the surface of binuclear phthalocyanine layer-structure with enhanced catalytic activity. Based on the excellent peroxidase-like activity of Co3O4/BiPc(OC8H9)(12), a highly sensitive and selectivity colorimetric method for glutathione detection was developed with a wide linear range of 10-200 mu M and a relatively lower limit of detection (LOD) of 4 mu M and a good linear relationship between the absorbance and the concentration of H2O2 in the range from 3 to 20 mM with the limit of detection of 0.35 mM. It is believed that the Co3O4/BiPc(OC8H9)(12) is a promising biosensing material applied for food analysis and health monitoring.
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页数：9
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