Fluorescence‐based biosensors have widely been used in the life‐sciences and biomedical
applications due to their low limit of detection and a diverse selection of fluorophores that …

Abstract Near-infrared II (NIR-II) imaging at 1100–1700 nm supports deep tissue
penetration, low auto-fluorescence interruption, and high imaging resolution due to …

The outbreak of COVID-19 and its continued spread have seriously threatened public
health. Antibody testing is essential for infection diagnosis, seroepidemiological analysis …

The fast spread of SARS-CoV-2 has severely threatened the public health. Establishing a
sensitive method for SARS-CoV-2 detection is of great significance to contain the worldwide …

Deployment of nucleic acid amplification assays for diagnosing pathogens in point-of-care
settings is a challenge due to lengthy preparatory steps. We present a molecular diagnostic …

Portable assays for the rapid identification of lineages of severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) are needed to aid large-scale efforts in monitoring the …

Effective screening of infectious diseases requires a fast, cheap, and population-scale
testing. Antigen pool testing can increase the test rate and shorten the screening time, thus …

Background Avidity is defined as the strength of binding between immunoglobulin G (IgG)
and its specific target epitope. IgG of high avidity is established during affinity maturation …

Plasmonic metasurfaces (PMs) functionalized with the monoclonal antibody (mAb) are
promising biophotonic sensors for biomolecular interaction analysis and convenient …

The rapid and sensitive detection of trace‐level viruses in a simple and reliable way is of
great importance for epidemic prevention and control. Here, a multi‐functionalized floating …