A5081411924- Metamaterials and Metasurfaces Applications
- Plasmonic and Surface Plasmon Research
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Nanomaterials in Catalysis
- Polydiacetylene-based materials and applications
- Advanced biosensing and bioanalysis techniques
- Advanced Antenna and Metasurface Technologies
- Nanoparticles: synthesis and applications
- Photonic and Optical Devices
- Photonic Crystals and Applications
University of Calabria
2022-2024
Istituto di Nanotecnologia
2024
Plasmonic metasurfaces with spatial symmetry breaking are crucial materials significant applications in fields such as polarization-controlled photonic devices and nanophotonic platforms for chiral sensing. In this paper, we introduce planar plasmonic metasurfaces, less than one-tenth of a wavelength thick, featuring nanocavities formed by three equilateral triangles. This configuration creates uniform, thin metasurfaces. Through combination experimental measurements numerical modeling,...
Sensitivity and specificity in biosensing platforms remain key aspects to enable an effective technological transfer. Considerable efforts have been made design sensing capable of controlling light–matter interaction at the nanoscale. Here, we numerically investigated how a 3D out-of-plane chiral plasmonic metasurface can be used as element platform, by exploiting variation lattice modes function refractive index surrounding medium. The results indicate that metasurfaces perform sensing,...
A B S T R C TThis paper presents the development of plasmonic nanocomposite platform in which a biofunc- tionalization with an enzyme allows simultaneous detection and degradation organophos- phate pesticides, focusing on paraoxon as representative neurotoxic compound. The biosensors integrate gold nanoparticles (AuNPs) within polydimethylsiloxane (PDMS) membrane, offer- ing multifunctional synergistic photothermal capabilities. situ synthesis AuNPs PDMS matrix eliminates need for additional...
This article presents a novel plasmonic sensing platform designed for the detection of low molecular weight molecules, offering significant advancements in diagnostic applications. The features periodic array gold nanodisks on 20 nm thin silica layer, supported by 100 thick substrate. By leveraging coupling between localized and propagating surface plasmon resonances, this design significantly enhances sensitivity specificity detection. Finite element method simulations are conducted to...
This study introduces a novel plasmonic nanocomposite platform, where gold nanoparticles (AuNPs) are synthesized in situ within polydimethylsiloxane (PDMS) film. The innovative fabrication process leverages ethyl acetate swelling to achieve uniform distribution of AuNPs, eliminating the need for additional reagents. resulting film exhibits exceptional photothermal conversion capabilities, efficiently converting absorbed light into heat and rapidly reaching high temperatures. Furthermore,...
Chirality, the property of asymmetry, is great importance in biological and physical phenomena. This prospective offers an overview emerging field chiral bioinspired plasmonics metamaterials, aiming to uncover nature's blueprint for engineering nanostructured materials. These materials possess unique structures, resulting fascinating optical properties finding applications sensing, photonics, catalysis. The first part focuses on design fabrication metamaterials that mimic intricate...