Nanophotonic devices, which control light in subwavelength volumes and enhance light–
matter interactions, have opened up exciting prospects for biosensing. Numerous …

Optical sensors are widely used for refractive index measurement in chemical, biomedical,
and food processing industries. Due to specific field distribution of the resonances, optical …

Nanoparticles (NPs) possess unique physical and chemical properties that make them
appropriate for various applications. The structural alteration of metallic NPs leads to …

Plasmonic colours are structural colours that emerge from resonant interactions between
light and metallic nanostructures. The engineering of plasmonic colours is a promising …

Frequency conversion processes, such as second-and third-harmonic generation, are
commonly realized in nonlinear optics, offering opportunities for applications in photonics …

Low-dimensional van der Waals (vdW) materials can harness tightly confined polaritonic
waves to deliver unique advantages for nanophotonic biosensing. The reduced …

This chapter reviews recent research on the use of the most common anisotropic gold and
silver nanoparticles (NPs) morphologies toward Surface-Enhanced Raman Spectroscopy …

SPR is a real-time, label-free measurement of binding kinetics and affinity. Success of SPR
biosensor is evident by the growing number of commercially available instruments. In the …

This paper reviews fundamentals of optical affinity biosensors based on plasmonic
nanostructures and discusses recent advances in the development of this technology …

Sensors have been extensively used owing to multiple advantages, including exceptional
sensing performance, user-friendly operation, fast response, high sensitivity and specificity …