Publications by authors named "Giovanna Vasco"
Article Synopsis
- Polymeric membranes enhanced with hydrophilic dopants, like polyaniline-capped halloysite nanotubes (HNTs), significantly improve water filtration efficiency.
- The study compares undoped and HNT-doped polyether sulfone (PES) membranes in their wettability, permeance, mechanical strength, and structure using advanced imaging techniques like µ-PIXE and STIM.
- Findings reveal that HNT-doped membranes show higher water permeance due to optimal distribution of HNTs within the polymer matrix, emphasizing the analytical benefits of the techniques used for characterization.
Investigations of byzantine wall paintings in the abbey of Santa Maria di Cerrate (Italy) in view of their restoration.
Spectrochim Acta A Mol Biomol Spectrosc
October 2020
In this paper, diagnostic analyses on 12th-13th century byzantine wall paintings in the abbey of Santa Maria di Cerrate (Southern Italy) were carried out preparatory to restoration work promoted by FAI (Fondo Ambiente Italiano). Both the pigments and the areas with a bleaching alteration in the frescoes were analysed using the energy dispersive X-ray fluorescence, the Raman spectroscopy and the scanning electron microscopy equipped with energy dispersive X-ray spectrometer. In particular, ED-XRF analyses were performed in situ on wall paintings, while Raman spectroscopy and SEM-EDX were accomplished on frescoes fragments.
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