Analysis of data of COVID lockdown period: Comorbidity and fatality rates in a few districts of Assam, India.

In many regions of the world, significant data collection, analysis, and availability on comorbidity and fatality incidents caused by COVID-19 during the lockdown period (2020-2022) is rare. This is especially true for hospitals and COVID treatment facilities in India. This lack of understanding impedes the development of appropriate treatment options, potentially resulting in inferior planning, patient recovery results, and a load on healthcare resources.

A fully handwritten-on-paper copper nanoparticle ink-based electroanalytical sweat glucose biosensor fabricated using dual-step pencil and pen approach.

This article reports a facile fabrication of a highly sensitive enzyme-free sweat glucose sensor over Whatman filter paper substrate employing a dual-step pencil and pen approach. Initially, two pencil-drawn electrodes (PDEs) are obtained on the filter paper through the manual abrasion of an 8B graphite pencil. Then, the sensing layer is drawn over one of the PDEs using a custom-made copper (Cu) nanoparticle ink (CuNP-ink) pen to form copper nanoparticle ink decorated PDE (CuNP-ink/PDE) which serves as a working electrode, while the other PDE is drawn with silver conductive ink (Ag-ink) pen to form reference electrode.