A5068579948- Cultural Heritage Materials Analysis
- Conservation Techniques and Studies
- Building materials and conservation
- Laser Material Processing Techniques
- Laser-induced spectroscopy and plasma
- Ocular and Laser Science Research
- Surface Roughness and Optical Measurements
- Thermography and Photoacoustic Techniques
- Terahertz technology and applications
- Mineral Processing and Grinding
- Archaeological Research and Protection
- Gold and Silver Nanoparticles Synthesis and Applications
- Laser Design and Applications
- Photoacoustic and Ultrasonic Imaging
- Optical Coatings and Gratings
- Geophysical Methods and Applications
- Alzheimer's disease research and treatments
- Petroleum Processing and Analysis
- Biosensors and Analytical Detection
- Mass Spectrometry Techniques and Applications
- Archaeology and Historical Studies
- X-ray Spectroscopy and Fluorescence Analysis
- Pigment Synthesis and Properties
- Ultrasonics and Acoustic Wave Propagation
- Mineralogy and Gemology Studies
Nello Carrara Institute of Applied Physics
2016-2025
National Research Council
2019-2023
Consorzio Roma Ricerche
2011-2014
Abstract Unique characteristics of SERS including the possibility to reveal compositional and structural content trace amounts biological samples without any pre‐treatment, depict this technique as a promising label‐free alternative standard analytical methods. Despite significant advancements, current substrates for biomolecule detection suffer from number issues still impeding their routine usage commercial exploitation, complex expensive fabrication procedures scarce standardization...
Here, we aimed at extending the Near Infrared-Short-wave infrared (NIR-SWIR) spectroscopy approach in characterizing Asbestos Containing Materials (ACM) and Natural Occurring (NOA) through development testing of a novel portable asbestos mapping tool based on Hyperspectral Imaging (NIR-HSI) tool. This was built using high resolution over range about 170 nm around OH overtone bands (about 1370-1420 nm), supercontinuum laser for vibrational excitation, compact XYZ translation stages, dedicated...
ABSTRACT This work focuses on developing and testing an optimised Raman approach based mobile instrumentation with 785 1064 nm laser excitation wavelengths to characterise artworks safely (i.e. by preventing possible photothermal alteration effects). A recently developed low‐size portable measuring head for thermally controlled spectroscopy (exc. nm) including confocal Raman, emissivity surface temperature measurement channels was here integrated a home‐made system provided wavelength,...
Raman spectroscopy assisted by localized plasmon resonances generating effective hot spots at the gaps between intertwined silver nanowires is herein adopted to unravel characteristic molecular motifs on surface of Aβ42 misfolded oligomers that are critical in driving intermolecular interactions neurodegeneration.
Abstract Therapeutic and diagnostic methods based on photomechanical effects are attracting much current attention in contexts as oncology, cardiology vascular surgery, for such applications photoacoustic imaging or microsurgery. Their underlying mechanism is the generation of ultrasound cavitation from interaction short optical pulses with endogenous dyes targeted contrast agents. Among latter, gold nanorods outstanding candidates, but their use has mainly been reported photothermal...
In this work, laser ablation has been applied for removing overpaint found on the reverse of a signed easel painting by Giacomo Balla, one founding members Futurist movement. After unsuccessful attempts to remove layers selectively using organic solvents, long Q-switched Nd:YAG (1064 nm, 120 ns) was successfully trialled, enabling planning complete uncovering hidden artwork treatment. Laser cleaning accompanied with thorough characterisation original pigments, binders, and Raman FTIR...
In this work we focused on the laser removal of fungi growths and foxing stains from old paper artifacts. Irradiation tests have been carried out using Nd:YAG laser's second harmonic characterized through morphological analysis by means optical microscopy UV-VIS fluorescence, along with SEM-EDX microscopy. addition, FTIR spectroscopy VIS diffuse reflectance provided, respectively, very useful information chemical processes ageing effectiveness. High selectivity gradualness were observed in...
In this work, a novel Raman scanner capable of performing point-to-point mapping relatively large surface paintings is presented. This device employs an excitation wavelength 1064 nm, and it equipped with high efficiency probe in order to collect the back-scattered light from each point analysis. The use long depth-of-field optics as well autofocus system allowed maintaining best conditions for signal acquisition during scanning, regardless irregularities. small dimension optical components...
In the present work, Raman, Fourier Transform Infrared (FTIR) and elemental Laser-Induced Breakdown Spectroscopy (LIBS) spectroscopic techniques were used for assessment of influence plant root composition towards shallow landslide occurrence. For this purpose, analyses directly carried out on samples collected from chestnut forests Garfagnana basin (northern Apennines, Italy) in different areas devoid affected by landslides due to frequent heavy rain events. Results have highlighted a...
The effectiveness of the cleaning methods to remove soiling and stains from fabric artefacts is often limited by their complex microscopic macroscopic structures, including fibre bundles, warp, weft, narrow folds, sewing deformations, others. These structures may sometimes make complete very challenging, they can easily be damaged. To approach such a problem, potential pulsed laser treatments artificially soiled cotton fabrics has been investigated. Laser tests were carried out on following...
Temperature rise during Raman spectroscopy can induce chemical alterations of the material under analysis and seriously affect its characterization. Thus, such photothermal side effects represent a serious problem to be carefully controlled in order safeguard integrity spectral features. In this work, an innovative probe for thermally portable (exc. 785 nm) equipped with infrared sensing lines was developed. It included source two thermopile sensors, which allowed perform real-time...
Varnishes are employed in painted artworks for protection from atmospheric pollution and oxidation improving the esthetic appearance by providing an even brilliant surface finish. Also, some cases, colored varnishes applied intentionally to modify chromatic of paintings. undergo complex differentiated structural chemical changes over time depending on their composition conservation conditions. The present work investigates extent degradation outermost layers varnish coatings due aging as a...