A Dopamine Detection Sensor Based on Au-Decorated NiS and Its Medical Application.

This article reports a simple hydrothermal method for synthesizing nickel disulfide (NiS) on the surface of fluorine-doped tin oxide (FTO) glass, followed by the deposition of 5 nm Au nanoparticles on the electrode surface by physical vapor deposition. This process ensures the uniform distribution of Au nanoparticles on the NiS surface to enhance its conductivity. Finally, an Au@NiS-FTO electrochemical biosensor is obtained for the detection of dopamine (DA).

MOF-Derived MnO/C Nanocomposites for High-Performance Supercapacitors.

As ordered porous materials, metal-organic frameworks (MOFs) have attracted tremendous attention in the field of energy conversion and storage due to their high specific surface area, permanent porosity, and tunable pore sizes. Here, MOF-derived MnO/C nanocomposites with regular octahedral shape were synthesized using a Mn-based analogue of the MIL-100 framework (Mn-MIL-100, MIL: Matérial Institut Lavoisier) as the precursor. Using aberration-corrected environmental transmission electron microscopy (ETEM), MnO nanocages with a diameter of approximately 20 nm were recognized in the MnO/C nanocomposites fabricated, dispersed in a microporous carbon matrix homogeneously.