Modification, characterization and peroxidase-mimetic properties of calcined product of a cobalt compound. Issue 12 (18th June 2017)

• Record Type: Journal Article
• Authors: Yang, Linyan; Zong, Yamin; Yang, Lisha; Lv, Rui; Jing, Liyuan; Ma, Jifei; Liu, Xin; Jin, Tianming
• Is Part Of: Journal of coordination chemistry. Volume 70:Issue 12(2017)
• Page Start: 2161
• Page End: 2173
• Publication Date: 2017-06-18
• Subjects: Co3O4 -- modification -- peroxidase mimetic -- glucose; Coordination compounds -- Periodicals; 541.2242
• DOI: 10.1080/00958972.2017.1317757
• Languages: English
• ISSNs: 0095-8972

Abstract

Abstract: One-pot solvothermal treatment of Co(NO3 )2 ·6H2 O, H2 L (5-(3-methyl-5-(pyridin-4-yl)-4 H -1, 2, 4-triazol-4-yl) isophthalic acid), and 4, 4 ′ -bipyridine (4, 4 ′ -bipy) in H2 O/DMF (V/V = 1 : 1) yielded a cobalt-organic chain, [Co(L )(O)(H2 O)2 ]n ·1.25nH2 O (1 ). Compound1 as raw materials was calcined to obtain Co3 O4, which could be confirmed by PXRD and SEM. Via the modification, Co3 O4 @SiO2 -NH2 and Co3 O4 @SiO2 -NH2 -FA samples could be obtained. Compared to Co3 O4 @SiO2 -NH2, Co3 O4 @SiO2 -NH2 -FA seems to have better peroxidase-mimetic properties. UV–vis results showed that optimal conditions of peroxidase-mimetic experiments were at 50°C in sodium acetate-acetic acid buffer (pH 3.6, 0.2 M), when the concentration of tetramethylbenzidine (TMB) was 0.2 mM. A concentration-dependent manner was shown between the concentration of glucose and absorbance in the measurement experiments for glucose. Abstract :