Visible-light and near-infrared fluorescence and surface-enhanced Raman scattering point-of-care sensing and bio-imaging: a review

Abstract

This article reviews the principles, design and applications of visible-light and near-infrared fluorescence and surface-enhanced Raman scattering in point-of-care testing and bio-imaging.

Research progress on detection techniques for point-of-care testing of foodborne pathogens

“…Protein chip technology is a kind of protein microarray, which is different from gene chip to realize binding based on the principle of base complementary pairing. It uses the interaction between proteins, such as the reaction between antigen and antibody, enzyme and substrate, for detection ( Khan et al, 2021 ; Zhou et al, 2021 ; Hang et al, 2022 ). With the continuous development and improved protein microarray technology, the technology has been gradually applied to the detection of foodborne pathogens.…”

Noble classical and quantum approach to model the optical properties of metallic nanoparticles to enhance the sensitivity of optoplasmonic sensors

“…23,24 Enhancement of SPP properties has potential application in nanophotonics, security, super-resolution imaging, and optical biosensors. [25][26][27] Plasmonic-based optical sensors (OPS) have high specicity, sensitivity, small size, and cost-effective advantages over conventional sensors. Their application has been used to measure cancer cell mechanics such as extracellular matrix, nucleoskeleton, and cytoskeleton; applying both the classical and quantum models of SPP properties.…”

Nanomaterial-based surface-enhanced Raman scattering spectroscopy for sensing and diagnostics of gas molecules in environment and healthcare

“…Furthermore, its applications in environmental control and healthcare have been explored. It is to be noted that there are a few reviews seems to be similar but these are entirely different because all are focused on a particular theme either on healthcare (mainly on a particular disease or materials) or environment related (on a particular problem) [73][74][75][76][77][78]. The proposed article is focused on the environmental and healthcare applications including the pandemic COVID-19 problem and solution with potential of commercialization scientific solution because of its portability and simple handling ability as compared to the traditional sensor/biosensors/environmental sensors.…”