Colorimetric detection of ascorbic acid and alkaline phosphatase activity based on the novel oxidase mimetic of Fe–Co bimetallic alloy encapsulated porous carbon nanocages

• Published in: Talanta (Oxford) Vol. 202; pp. 354 - 361
• Main Authors: Wu, Tengteng, Ma, Zhangyan, Li, Peipei, Liu, Meiling, Liu, Xiaoying, Li, Haitao, Zhang, Youyu, Yao, Shouzhuo
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.09.2019
• Subjects: alkaline phosphatase; Alkaline phosphatase (ALP); alloys; ascorbic acid; Ascorbic acid (AA); bioassays; carbon; carbonation; catalysts; catalytic activity; color; Colorimetric detection; colorimetry; coordination polymers; detection limit; encapsulation; enzyme activity; FeCo NPs; hydrogen peroxide; hydrolysis; Metal-organic frameworks; nanoparticles; Oxidase mimetics; oxidation; superoxide anion; Oxidase mimetics; FeCo NPs; Ascorbic acid (AA); Metal-organic frameworks; Alkaline phosphatase (ALP); Colorimetric detection

A novel catalyst of FeCo nanoparticles (FeCo NPs) incorporated porous nanocages (FeCo NPs@PNC) was first synthesized by encapsulating of FeCo alloy into ZIF-8 and further carbonation of the composite. The FeCo NPs@PNC displays enhanced intrinsic oxidase-like activity compared to the individual FeCo...