A5021382721- Gold and Silver Nanoparticles Synthesis and Applications
- Laser-Ablation Synthesis of Nanoparticles
- Spectroscopy Techniques in Biomedical and Chemical Research
- Nonlinear Optical Materials Studies
- Molecular Junctions and Nanostructures
- Photoacoustic and Ultrasonic Imaging
- Electrocatalysts for Energy Conversion
- Photochemistry and Electron Transfer Studies
- Quantum Dots Synthesis And Properties
- Supercapacitor Materials and Fabrication
- Plasmonic and Surface Plasmon Research
- Advanced biosensing and bioanalysis techniques
- Fuel Cells and Related Materials
- Luminescence and Fluorescent Materials
- Nanocluster Synthesis and Applications
- Biosensors and Analytical Detection
- Gas Sensing Nanomaterials and Sensors
- Organic Electronics and Photovoltaics
- Luminescence Properties of Advanced Materials
- Analytical Chemistry and Sensors
- Spectroscopy and Quantum Chemical Studies
- Nanoparticles: synthesis and applications
- Advanced Nanomaterials in Catalysis
- Conducting polymers and applications
- Nonlinear Optical Materials Research
National Interuniversity Consortium of Materials Science and Technology
2014-2024
University of Padua
2015-2024
Istituto Nazionale di Fisica Nucleare, Sezione di Padova
2024
Institute of Ionized Gas
2016
KU Leuven
2004-2008
Max Planck Institute for Polymer Research
2004
Abstract Surface‐enhanced Raman scattering (SERS) has been emerging as a powerful tool for the detection of variety analytes due to its very high sensitivity and fingerprinting recognition capabilities. Technological progresses in equipment analysis are contributing transition from technically demanding research method more widely available analytical technique. In particular, commercialization portable or handheld instruments opened up possibility performing situ analysis. this review,...
Oxidation effects on SERS response of Ag nanoprism arrays are interpreted by FEM simulations the local-field distribution around nanoprisms.
Gold nanocorals (AuNC) are obtained by a “green” method consisting of laser irradiation, followed anisotropic self-assembly without templating agents. The AuNC dispersion has broadband plasmon absorption from the visible to near infrared region, unitary light-to-heat conversion efficiency, versatile surface chemistry and biocompatibility.
Metal-coordination complexes are attracting increasing attention as supramolecular cross-linkers to develop polymeric hydrogel networks with tunable and dynamic mechanical properties. Nonetheless, the rational design of these materials is still hindered by limited mechanistic understanding how metal–ligand interactions influence structure properties hydrogel. Here, we report a detailed investigation using nuclear magnetic resonance (NMR) spectroscopy combined molecular dynamics (MD)...
The amplification of Raman signals the heteroaromatic cation 1-(N-methylpyrid-4-yl)-2-(N-methylpyrrol-2-yl)ethylene (PEP+)) bound to Au nanorods (NRs) was investigated at different excitation wavelengths study effect laser resonance with absorption band PEP+ moiety and two plasmon oscillation modes NR. Two derivatives, differing in length alkyl chain bearing anchoring group, were used as target molecules. spectra obtained exciting 514 or 785 nm (i.e., transverse longitudinal band) present a...
Gold nanoshells, with a silica core and different shell dimensions, have been extensively investigated. Optical far-field properties, namely extinction absorption, separately determined by means of spectrophotometry photoacoustic spectroscopy, respectively, in the 440-900 nm range. The enhancement factor for surface-enhanced Raman scattering, which is related to near-field effects, has measured from 568 920 nm. absorption contribution decreases as overall diameter increases. Moreover,...
Magneto-plasmonic nanostructures functionalized with cell targeting units are of great interest for nanobiotechnology applications.
Noble metal nanoparticles are efficient converters of light into heat but typically cover a limited spectral range or have intense scattering, resulting in unsuited for broadband thermoplasmonic applications and sunlight-driven generation. Here, Au-Ag alloy were deliberately molded with an irregular nanocoral (NC) shape to obtain plasmon absorption from the visible near-infrared yet at lower cost compared pure Au nanostructures. The NCs produced through green scalable methodology that relies...
Abstract Highly accessible surface area and heteroatom‐doping are desired properties for carbon electrode materials to be used in electrochemical supercapacitors. In this paper, nitrogen sulfur doped with wide mesopores (13‐14 nm) were synthetized according a hard template approach by pyrolysis of sucrose, 1,10‐phenanthroline or dibenzothiophene as carbon, nitrogen‐carbon sulfur‐carbon precursors, respectively. The morphology dimension induced sacrificial SiO 2 nanoparticles (10‐20 nm),...
Abstract Nonequilibrium nanoalloys are metastable solids obtained at the nanoscale under nonequilibrium conditions that allow study of kinetically frozen atoms and discovery new physical chemical properties. However, stabilization phases in nanometric size regime is challenging synthetic route should be easy sustainable, for to practically available. Here we report on one‐step laser ablation synthesis solution (LASiS) Au−Co alloy nanoparticles (NPs) their characterization ensembles single...
Abstract The huge signal enhancement that motivates the rapid spreading of surface‐enhanced Raman scattering (SERS) in a wide range applications is commonly quantified by measuring factor (EF). Concerning this important parameter, paper, we tackle 2 points: (a) We validate use Macro configuration with line focus to measure EFs, against more common Micro one. validation carried out comparing EFs measured configurations well‐established methodology, on same set commercial substrates. can be...
The accurate determination of the local temperature is one most important challenges in field nanotechnology and nanomedicine. For this purpose, different techniques materials have been extensively studied order to identify both best-performing with greatest sensitivity. In study, Raman technique was exploited for as a non-contact titania nanoparticles (NPs) were tested nanothermometer active material. Biocompatible NPs synthesized following combination sol-gel solvothermal green synthesis...
Ag nanostructures are grown by AC electrodeposition on anodic alumina oxide (AAO) connected membranes acting as templates. Depending the thickness of template and voltage applied during growth process, different with optical properties obtained. When AAO about 1 μm thick used, consist in nanorods, at bottom pores, nanotubes departing from nanorods filling pores almost for whole length. 3 spheroids, nanowires that do not reach upper part pores. The samples characterized angle resolved x-ray...
Combined theoretical and experimental analysis of the far-field (extinction) near-field (SERS enhancement) spectral distribution in hollow nanoparticles, that is, silver–gold nanocages (NCs).