The design of nanozymes with high metal atom loading is of great significance to improve
enzyme activity and is also the key to furthering the construction of highly sensitive …

This study presents a novel strategy to fabricate an electrochemical sensor based on a
screen-printed electrode (SPE) modified by a bimetallic Mn 2+/Fe 3+ metal-organic …

Developing colorimetric sensors based on nanozymes for the detection of targets have
gained significant importance. Herein, a simple, sensitive and effective colorimetric sensor …

Electrochemical sensors and electroanalytical techniques become emerging as effective
and low-cost tools for rapid assessment of special parameters of the food quality. Chemically …

A glassy carbon electrode was modified with nitrogen and sulfur co-doped graphene
quantum dots immobilized in chitosan for the monitoring of multivitamins. The graphene …

Disposable electrochemical paper-based analytical devices were developed from a
conductive ink using graphite powder, automotive varnish and magnetite nanoparticles. The …

Tannic acid (TA) is a water-soluble polyphenol and used in beverages, medical fields as
clarifying and additive agents. In daily life, TA is unavoidable, and excessive consumption of …

An electrochemical sensor based on carbon paste modified with polyethyleneimine was
developed and employed for the determination of caffeic acid in aromatic herbs. The sensor …

In the present work, the ZnO and Al-ZnO nanoflakes (NFs) were synthesized by the co-
precipitation process. The synthesized NFs were characterized by X-ray diffraction and field …

We have designed and prepared an electrochemical biosensor for lactate determination.
Through a diazotation process, the enzyme lactate oxidase (LOx) is anchored onto chevron …