Nitric oxide (NO) is an important signaling molecule that is involved in a wide range of
physiological and pathological events in biology. Metal coordination chemistry, especially …

Background Food safety poses a threat to public health and raises serious concerns
worldwide. Contaminants include various substances such as pathogens, toxins, pesticides …

The heme iron complex is one of the most important cofactors in biological systems (Figure
1). The major functions of the heme iron complex are to serve as the O2 binding site for …

Doping graphene quantum dots (GQDs) with heteroatoms can provide new or improved
structural and optical properties. Therefore, heteroatom doped GQDs have promising …

A fluorometric and colorimetric dual-mode sensing platform based on graphitic carbon nitrite
quantum dots (g-CNQDs) and Fe (II)-bathophenanthroline complex (BPS-Fe 2+) was …

A growing number of heme proteins have recently been repurposed for catalyzing
abiological carbene transfer reactions. Herein, we rationally designed an engineered variant …

Nitric oxide (NO) is a key signaling molecule in health and disease. While nitrite acts as a
reservoir of NO activity, mechanisms for NO release require further understanding. A series …

The existence of carcinogenic nitrites in food and the natural environment has attracted
much attention. Therefore, it is still urgent and necessary to develop nitrite sensors with …

A glassy carbon electrode (GCE) was modified with a nanocomposite prepared from
carboxylated multiwalled carbon nanotubes (c-MWCNT) and titanium nitride (TiN) …

In recent years, carbon dot (CD)-based fluorescent sensors for selective ions or small
biomolecules have drawn great attention. In this work, highly fluorescent CDs (QY= 21%) …