The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.analchem.0c05257. Additional information as noted in the text; OP assay ...

The design of electrochemical sensors is crucial considering important factors such as efficiency, low cost, biocompatibility, and availability. Manganese oxides are readily available, low-cost, and ...

In this video, I demonstrate how to make an oxygen generator using manganese dioxide (MnO2) and hydrogen peroxide (H2O2) Maduro says he is a 'prisoner of war' 9/11 and other historical events captured ...