Hemin@metal–organic framework with peroxidase-like activity and its application to glucose detection

3D metal-organic framework as highly efficient biosensing platform for ultrasensitive and rapid detection of bisphenol A

“…Qin et al reported that an amino-containing MOF (MIL-101(Al)-NH 2 ) was used to anchor hemin and the material showed peroxidase-like activity, which offered a colorimetric method for H 2 O 2 determination. By coupling with glucose oxidase, a similar colorimetric method for analysis of glucose was also developed (Qin et al, 2013). Owing to the intrinsic limitations of biomimetic catalytic capability and indirect colorimetric method, the detection ability was not ideal compared to other electrochemical enzyme biosensors.…”

Smart Nanocomposites of Cu-Hemin Metal-Organic Frameworks for Electrochemical Glucose Biosensing

“…Some biomolecule@MOFs/ZIFs have been applied for biosensing. For example, Liu Y. et al synthesized hemin@MIL–101(Al)–NH 2 to combine with GOD for colorimetric detection of glucose43. Liu Z. et al has also prepared cytochrome c/ZIF-8 by one–pot synthesis for glucose and H 2 O 2 detection by colorimetric method42.…”

Selective extraction and release using (EDTA-Ni)-layered double hydroxide coupled with catalytic oxidation of 3,3′,5,5′-tetramethylbenzidine for sensitive detection of copper ion

“…On the other hand, in the second step (release and catalysis), for a proper reaction pH, four aspects need to be considered: (1) To promote the release of Cu 2+ into reaction solution, a lower pH is required (smaller formation constant and higher solubility); (2) When pH < 4, (EDTA-Ni)-LDH would dissolve [20] and release another main interfering cation, Fe 3+ ; (3) Fe 3+ has a maximal formation constant with EDTA at pH 5 [41]; and (4) Optimal pH for TMB oxidation is ca. 4-5 [46]. On the basis of the above discussion, a pH of 5 was adopted for the reaction solution.…”