0000000000332337
AUTHOR
G. Lazzara
showing 2 related works from this author
Binding abilities of new cyclodextrin-cucurbituril supramolecular hosts
2015
Various combined techniques (UV–vis spectrophotometry, isothermal titration calorimetry, thermogravimetry, ESI-MS mass spectrometry, polarimetry and 1H NMR spectroscopy) were used in order to study the interaction between a new combined supramolecular host, namely a bow-tie-structured cyclodextrin–cucurbituril association solely held by non-covalent interactions, and a suitably selected guest, namely the N-(p-nitrophenyl)-1,8-diaminooctane hydrochloride. In particular, the use of different techniques highlighted the peculiar features of the possible host–guest supramolecular interactions under different concentration conditions.
SCIENTIFIC INVESTIGATIONS FOR THE RESTORATION OF SANTA CHIARA FROM THE SANTA CATERINA D’ALESSANDRIA MONASTERY IN PALERMO, ITALY
2022
The aim of this research was to assess the techniques and the materials used to realize the canvas painting Santa Chiara, from the Santa Caterina d’Alessandria Monastery and to verify the state of preservation, the possible decay processes and previous restorations. Consequently, an integrated analytical approach based on the use of non-invasive (diffused, indirect and ultraviolet light investigations) and micro-invasive techniques (optical microscopy, OM, scanning electron microscopy, SEM-EDX, Fourier- transform infrared spectroscopy FT-IR spectroscopy) were used. The oil painting on canvas dated XVI century: data suggests traditional painting technique, characterized by two priming prepar…