Recent Progresses in Electrochemical DNA Biosensors for SARS-CoV-2 Detection.

Coronavirus disease 19 (COVID-19) is still a major public health concern in many nations today. COVID-19 transmission is now controlled mostly through early discovery, isolation, and therapy. Because of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the contributing factor to COVID-19, establishing timely, sensitive, accurate, simple, and budget detection technologies for the SARS-CoV-2 is urgent for epidemic prevention.

Recent Advances in Carbon Dots for Fluorescent Bioimaging: A Mini-Review.

As a new type of "zero-dimensional" fluorescent carbon nanomaterials, carbon dots (CDs) have some unique optical and chemical properties, they are being explored for a variety of applications in bio-related fields, such as bioimaging, biosensors, and therapy. This review mainly summarizes the recent progress of CDs in bioimaging. The overview of this review can be roughly divided into two categories: (1) bioimaging based on CDs in different cells and important organelles.

Electrochemical Biosensing Interface Based on Carbon Dots-FeO Nanomaterial for the Determination of O157:H7.

() O157:H7 can cause many food safety incidents, which seriously affect human health and economic development. Therefore, the sensitive, accurate, and rapid determination of O157:H7 is of great significance for preventing the outbreak and spread of foodborne diseases. In this study, a carbon dots-FeO nanomaterial (CDs-FeO)-based sensitive electrochemical biosensor for O157:H7 detection was developed.