This review article deals with the concepts, principles and applications of visible-light and
near-infrared (NIR) fluorescence and surface-enhanced Raman scattering (SERS) in in vitro …

Silver and gold nanoparticles have found extensive biomedical applications due to their
strong localized surface plasmon resonance (LSPR) and intriguing plasmonic properties …

This review article discusses progress in surface plasmon resonance (SPR) of two-
dimensional (2D) and three-dimensional (3D) chip-based nanostructure array patterns …

Surface-enhanced Raman scattering spectroscopy (SERS) is a powerful technique of
vibrational spectroscopy based on the inelastic scattering of incident photons by molecular …

Noble metal nanoparticles as color labels and signal generators have been widely accepted
for the fabrication of colorimetric assays and sensors due to their simplicity and practicality …

Nitrite has been widely existed in food and natural environment systems. To protect the
environmental safety and human health, non-enzymatic nitrite sensor with reasonable linear …

In the present study, an innovative electrochemical sensing platform was established for
sensitive detection of NO2—. This sensor was developed using CoFe alloy encapsulated in …

Here, a sensitive and selective strategy for the detection of nitrite via colorimetry and test
strips was developed based on Fe-single-atom catalysts (Fe SACs) through the oxidation …

N-doped carbon dots (N-CDs) were successfully synthesized via simple one-step
hydrothermal carbonization using chitosan as carbon and nitrogen sources. The obtained N …

While fundamental to quantum sensing, quantum state control has been traditionally limited
to extreme conditions. This restricts the impact of the practical implementation of quantum …