Per appuntamento. Si riceve presso Dip. di Chimica, Polo Scientifico e Tecnologico, stanza 303
BIOGRAFIARodorico Giorgi nasce a Prato il 17 Luglio 1971.
Coniugato, con due figli.
TITOLI DI STUDIO1990: Consegue la Maturità scientifica il 11/07/90 presso il Liceo Scientifico Statale “Carlo Livi” di Prato.
1996: Consegue la Laurea in Chimica il 12/11/96 presso la Facoltà di Scienze M.F.N dell'Università degli Studi di Firenze , con una tesi dal titolo “Sospensioni stabili di idrossido di calcio in alcoli alifatici a catena corta. Applicazione nell'ambito della conservazione dei beni culturali”. Relatore: prof. Luigi Dei; correlatore: prof. Enzo Ferroni.
1997: Abilitazione all'esercizio della Professione conseguita il 01/02/97, presso l'Università degli Studi di Firenze.
1997-2000: Nel 1997 vince il concorso per il Dottorato di Ricerca in Scienza per la Conservazione dei Beni Culturali (XIII ciclo). Nel corso del triennio svolge una tesi dal titolo: “Applicazioni della tomografia NMR nello studio della struttura e delle proprietà chimico-fisiche di materiali lapidei porosi di interesse artistico ed architettonico”. Tutore: prof. Piero Baglioni, Università di Firenze. Il titolo di Dottore di Ricerca è stato conseguito il 16 Febbraio 2001.
2001: E' nominato Cultore della Materia per la disciplina di “Chimica del Restauro” presso il Corso di Diploma in Tecnico per la Diagnostica Applicata al Restauro e alla Conservazione dei Beni Culturali dell'Universita' degli Studi di Firenze.
2004: E' nominato Cultore della Materia per il settore scientifico disciplinare CHIM/12 e CHIM/02 presso i corsi Laurea in Chimica e in Tecnologia per la Conservazione ed il Restauro dei Beni Culturali, dell'Università degli Studi di Firenze.
2006 In data 6 Aprile 2006 Rodorico Giorgi è stato nominato vincitore della valutazione comparativa ad un posto di ricercatore per il settore scientifico disciplinare CHIM/12 della Facoltà di Scienze M.F.N.
2006 Dal 1 Settembre 2006 Rodorico Giorgi in servizio presso la Facoltà di Scienze M.F.N. dell’Università degli Studi di Firenze con il ruolo di Ricercatore (settore CHIM/12).
2014 Dal 1 Novembre 2014 Rodorico Giorgi in servizio con il ruolo di Professore di seconda fascia (settore CHIM/12).
My research interests may be summarized as follows:
(1) Consolidation of wall paintings and application of nanotechnology in this field;
(2) Application of NMR tomography to the study of degradation processes in stones, plaster, and cement;
(3) Study of degradation phenomena in cellulose-based materials (paper, wood, textiles) and development of nanotechnology for deacidification;
(4) Development of microemulsions and micelle solutions for the removal of polymer resins from painted surfaces;
(5) Development of gelled systems (chemical gels), responsive to physical and chemical stimuli, for the cleaning of delicate surfaces.
Rodorico Giorgi was born in Prato (Italy) on July 17, 1971.
In 1996 he got a B.S. in Chemistry, University of Florence (Italy). Title of the thesis: "Calcium hydroxide suspensions. Applications in the conservation of Cultural Heritage". Advisor: Dr. Luigi Dei (University of Florence), Co-advisor: Prof. Enzo Ferroni (University of Florence)
In 2000 he got a Ph.D. in Science for the Conservation of Cultural Heritage. Title of the thesis: "Application of NMR tomography to the study of the structure and physico-chemical properties of stone materials used in Cultural Heritage”. Advisor: Prof. Piero Baglioni, University of Florence
From 2001 to 2005 Fellowship at the department of Chemistry, University of Florence, for the subject titled: "Physico-chemical study of the interface features of artistically and historically relevant porous materials". Advisor is Prof. Baglioni
From 2006 to 2014 Giorgi has been a fellow researcher (CHIM/12 – Chemistry for the environment and cultural heritage) at the dept. of Chemistry, University of Florence.
From 2014 Giorgi is an Associate Professor at the dept. of Chemistry, University of Florence.
Giorgi's background is in physical chemistry of surfaces and colloids applied to the conservation of Cultural Heritage materials. The scientific production can be summarized in five different topics: (1) Consolidation of wall paintings and application of nanotechnology in this field; (2) Application of NMR tomography to the study of degradation processes in stones, plaster, and cement; (3) Study of degradation phenomena in cellulose-based materials (paper, wood, textiles) and development of nanotechnology for deacidification; (4) Development of microemulsions and micelle solutions for the removal of polymer resins from painted surfaces; (5) Development of gelled systems (chemical gels), responsive to physical and chemical stimuli, for the cleaning of delicate surfaces.
(1) Giorgi worked 13 months (September 1995-November 1996) for his University Chemistry Degree on the subject "Calcium hydroxide suspensions: applications in the conservation of cultural heritage". In his work he presented remarkable results concerning a new methodology based on the application of Ca(OH)2 for consolidation of wall paintings and stone. This work originated an Italian Patent. Giorgi is extending such activity up today. Actually, Calcium hydroxide is probably the best solution for reinforcement of wall paintings, since it is physico-chemically compatible and it is the 'original' binder used by artists. Ca(OH)2 nanoparticles were synthesized through different methods to obtain stable nonaqueous dispersion of particles with different average size, cristallinity, size distribution, and polydispersity. Scanning and Transmission Electron Microscopy (SEM and TEM) showed crystalline, hexagonally shaped, nanoparticles with hexagon sides in the range 100-300nm. Atomic Force Microscopy (AFM) evidenced that the thickness was in the range 2-40nm. Calcium hydroxide stable dispersions were successfully applied, instead of organic glues, as fixatives to re-adhere lifted paint layers during important restoration workshops in different countries (Mexico, Spain, France, Sweden, US, Israel, Argentina, and others)
(2) Giorgi got the Ph.D. degree, in February 2000, in Science for the Conservation of Cultural Heritage for a study on "Application of NMR tomography to the study of the structure and physico-chemical properties of stone materials used in cultural heritage". The research project has been performed in collaboration with prof. Bruno Maraviglia and his team at the Magnetic Resonance Laboratory of department of Physics at the University “La Sapienza”, in Rome.
The decay's processes affecting stones and the effects of restoration treatments were investigated by Nuclear Magnetic Resonance techniques. High resolution imaging techniques and water proton (1H) relaxation rates were particularly studied. NMR exploits the magnetic properties of nuclei (hydrogen in water) under an external high magnetic field. By studying the time length needed for the spin system magnetization to reach the equilibrium value, after a selected perturbation obtained by a radio-frequency pulses sequence, information on the energy exchanges between the system and its surroundings was obtained. The porous structure and the interface properties were investigated in a not destructive way. Changes induced by protection treatments based on polymer resins were obtained for fluid saturated samples. In addition, pulse sequences were used to obtain high-resolution 2D-images of water distribution inside low porous materials, which plays a crucial role in most of the decay processes.
(3) In the framework of a fellowship at the department of Chemistry, University of Florence, with a research programme entitled "Physico-chemical study of interface features of artistically and historically relevant porous materials" (Advisor is Prof. Baglioni), Giorgi developed an innovative methodology for paper deacidification based on nonaqueous dispersions of alkaline nanoparticles.
Many different techniques and products have been studied or developed in order to eliminate acidity from paper. Unfortunately, up to now the problem is far to be satisfactorily solved, and the specialists are looking for new products capable of annulling the acidity present in paper. Calcium, magnesium, and barium hydroxide aqueous solutions have been widely used for many decades, but, unfortunately, they had often induced not desirable side effects, because of their strong alkaline conditions, which promotes cellulose depolymerization. Several non-aqueous deacidification processes have also been proposed. Even though appreciable results are obtained, some disadvantages are longer to be overcome, specially concerning the used solvents, which are environmentally unfriendly. Despite its scarce usage, calcium hydroxide is an excellent deacidifying agent. Calcium hydroxide is physico-chemically friendly to paper and, once converted to calcium carbonate, works efficiently as alkaline reservoir. Calcium hydroxide nanoparticles dispersed in alcohol offers an innovative solution for paper deacidification. The used solvents are environmentally friendly. Moreover, as non-aqueous dispersion, it could be applied by different techniques, as brushing or spraying, providing excellent results.
(4) In the last decade, nanostructured fluid, such as o/w microemulsions and micelle solutions for the removal from painted surfaces of polymer resins, used as consolidants and protectives in past restorations, have been largely investigated. Nanostructured fluids ensure low aggressiveness with respect to the original components of the painted layer, due to the presence of water as a dispersing medium that remained in direct contact with the hydrophilic surface of the wall painting. Formulations specifically tailored for the removal of paraloid B72, primal AC33, and mowilith DM5 resins were developed. Both micelles and swollen micelles work as nanocontainers of solvents (to obtain o/w systems) that can dissolve polymers to achieve a complete removal from the surface and the porosity of the works of art. The detergency capability mainly depends on the very large surface area of micelles and nanodroplets available for interaction with the polymer coating. The water-based system reduces the penetration into the artifact porous matrix that occurs with organic solvents and the associated polymer redissolution into the artifact but also reduces the toxicity of the formulation, offering better and faster performance than pure organic solvents.
(5)Novel hydrogels to be used for the cleaning of delicate artworks surfaces have been investigated since 2012. In particular, innovative physical and chemical gels, with high water retention capability, high responsiveness to external stimuli, and suitable mechanical properties, were developed. The high solvent retention capability and the specific mechanical properties of these gels allow the safe cleaning of artifacts, even including water-sensitive substrates. In fact, the cleaning action is limited to the contact surface, and the complete removal of soil is achieved while avoiding solvent spreading and absorption within the substrate. In particular, the use of gels based on semi-interpenetrating (IPN) polymer networks provides great advantages because these gels are able to load water-based detergent systems, such as micellar solutions and microemulsions, which are effective in removing synthetic adhesives and highly hydrophobic detrimental materials. The combination of semi-IPN polymer networks with these detergents allows the cleaning of sensitive substrates such as canvas paintings and manuscripts. More recently, new formulations based on PVA were used to obtain through freeze-thawing cycles, strong gel with excellent mechanical properties for the cleaning of very delicate and morphologically rough surfaces. In the framework of the EU Nanorestart Project, such formulations have been used for the cleaning of masterpieces by Pollock, Picasso from the Peggy Guggenheim collection in Venice and by Roy Lichtenstein from Tate Gallery.
Giorgi joined several national and international projects: the EU project NANORESTART (H2020), INNOVACONCRETE (H2020), and NANOFORART (EU 7th); the regional projects TEMART and TECON; and the international programmes for cooperation, funded by the Italian MIUR and MAE, with universities and institutions in Mexico and India.
Giorgi was involved in several conservation projects: the Proyecto Arqueologico Calakmul, for the conservation of the UNESCO site of Calakmul (Mexico); the Programa Nacional de Conservación de Pintura Mural Prehispánica - INAH (Istituto Nacional de Antropologia e Historia, Mexico), addressed to the conservation of Tlatelolco, Cholula, Mayapan, Cacaxtla, and Tamuín archaeological sites; The Saving Oseberg project, University of Oslo & Museum of Cultural History in Norway; The Vasa project in Sweden; the Conservation programme of the Holy House in Nazareth (Israel).
Rodorico Giorgi is author of about 130 publications in international journals in the field of nanoscience applied to conservation of cultural heritage. Some of these publications were reviewed by Consultant Editors of Nature, and published as highlights in Nature News (“Nanotechnology restores flaking frescos”, “Nanotechnologies for conservation of cultural heritage: paper and canvas deacidification”, “Art restoration: Keeping it clean”, “Magnets harnessed to clean artwork”).
In 2016 Giorgi achieved the score for the position of full professor in two competitive sectors, namely 03/A1 ‘Analytical Chemistry’ and 03/A2 ‘Models and Methods for Chemistry’.
At February 2018, articles produced by Giorgi received 1360 citations. In the ten years period 2008-2017 Giorgi has published 44 articles according to the ISI and Scopus database, with h-index of 21.