1
|
Di Tullio V, Pigliapochi R, Zumbulyadis N, Centeno SA, Catalano J, Wagner M, Dybowski C. Dynamics of diffusion, evaporation, and retention of organic solvents in paints by unilateral NMR and HR-MAS NMR spectroscopy. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
|
2
|
Fanost A, de Viguerie L, Ducouret G, Mériguet G, Walter P, Glanville H, Rollet AL, Jaber M. Connecting Rheological Properties and Molecular Dynamics of Egg-Tempera Paints based on Egg Yolk. Angew Chem Int Ed Engl 2022; 61:e202112108. [PMID: 34816554 DOI: 10.1002/anie.202112108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Indexed: 11/11/2022]
Abstract
Egg-tempera painting is a pictorial technique widely used in the Middle Ages, although poorly studied in its physico-chemical aspects until now. Here we show how NMR relaxometry and rheology can be combined to probe egg-tempera paints and shed new light on their structure and behavior. Based on recipes of the 15th century, model formulations with egg yolk and green earth have been reproduced to characterize the physicochemical properties of this paint at the mesoscopic and macroscopic scales. The rheological measurements highlight a synergetic effect between green earth and egg yolk, induced by the interactions between them and the structural organisation of the system. 1 H NMR relaxometry emphasizes the presence and the structure of a network formed by the yolk and the pigment.
Collapse
Affiliation(s)
- Agathe Fanost
- Laboratoire d'Archéologie Moléculaire et Structurale LAMS, Sorbonne Université, CNRS, Institut Universitaire de France, 4 pl. Jussieu, F-75005, Paris, France.,laboratoire PHysico-chimie des Electrolytes et Nanosystèmes InterfaciauX, PHENIX, Sorbonne Université, CNRS, 4 pl. Jussieu, F-75005, Paris, France
| | - Laurence de Viguerie
- Laboratoire d'Archéologie Moléculaire et Structurale LAMS, Sorbonne Université, CNRS, Institut Universitaire de France, 4 pl. Jussieu, F-75005, Paris, France
| | - Guylaine Ducouret
- Sciences et Ingénierie de la Matière Molle, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, 75005, Paris, France
| | - Guillaume Mériguet
- laboratoire PHysico-chimie des Electrolytes et Nanosystèmes InterfaciauX, PHENIX, Sorbonne Université, CNRS, 4 pl. Jussieu, F-75005, Paris, France
| | - Philippe Walter
- Laboratoire d'Archéologie Moléculaire et Structurale LAMS, Sorbonne Université, CNRS, Institut Universitaire de France, 4 pl. Jussieu, F-75005, Paris, France
| | - Helen Glanville
- Laboratoire d'Archéologie Moléculaire et Structurale LAMS, Sorbonne Université, CNRS, Institut Universitaire de France, 4 pl. Jussieu, F-75005, Paris, France
| | - Anne-Laure Rollet
- laboratoire PHysico-chimie des Electrolytes et Nanosystèmes InterfaciauX, PHENIX, Sorbonne Université, CNRS, 4 pl. Jussieu, F-75005, Paris, France
| | - Maguy Jaber
- Laboratoire d'Archéologie Moléculaire et Structurale LAMS, Sorbonne Université, CNRS, Institut Universitaire de France, 4 pl. Jussieu, F-75005, Paris, France
| |
Collapse
|
3
|
Fanost A, Viguerie L, Ducouret G, Mériguet G, Walter P, Glanville H, Rollet A, Jaber M. Connecting Rheological Properties and Molecular Dynamics of Egg‐Tempera Paints based on Egg Yolk. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Agathe Fanost
- Laboratoire d'Archéologie Moléculaire et Structurale LAMS Sorbonne Université, CNRS, Institut Universitaire de France 4 pl. Jussieu F-75005 Paris France
- laboratoire PHysico-chimie des Electrolytes et Nanosystèmes InterfaciauX, PHENIX Sorbonne Université, CNRS 4 pl. Jussieu F-75005 Paris France
| | - Laurence Viguerie
- Laboratoire d'Archéologie Moléculaire et Structurale LAMS Sorbonne Université, CNRS, Institut Universitaire de France 4 pl. Jussieu F-75005 Paris France
| | - Guylaine Ducouret
- Sciences et Ingénierie de la Matière Molle ESPCI Paris, Université PSL CNRS Sorbonne Université 75005 Paris France
| | - Guillaume Mériguet
- laboratoire PHysico-chimie des Electrolytes et Nanosystèmes InterfaciauX, PHENIX Sorbonne Université, CNRS 4 pl. Jussieu F-75005 Paris France
| | - Philippe Walter
- Laboratoire d'Archéologie Moléculaire et Structurale LAMS Sorbonne Université, CNRS, Institut Universitaire de France 4 pl. Jussieu F-75005 Paris France
| | - Helen Glanville
- Laboratoire d'Archéologie Moléculaire et Structurale LAMS Sorbonne Université, CNRS, Institut Universitaire de France 4 pl. Jussieu F-75005 Paris France
| | - Anne‐Laure Rollet
- laboratoire PHysico-chimie des Electrolytes et Nanosystèmes InterfaciauX, PHENIX Sorbonne Université, CNRS 4 pl. Jussieu F-75005 Paris France
| | - Maguy Jaber
- Laboratoire d'Archéologie Moléculaire et Structurale LAMS Sorbonne Université, CNRS, Institut Universitaire de France 4 pl. Jussieu F-75005 Paris France
| |
Collapse
|
4
|
Wang Y, Xu Y, Zhang M, Emmanuel Komolafe T, Wang W, Luo H, Chen X, Yang X, Wu Z. A single-sided magnet for deep-depth fat quantification. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2021; 331:107053. [PMID: 34428727 DOI: 10.1016/j.jmr.2021.107053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 06/06/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
Early detection of fatty-liver disease is important before further aggravations of the disease, such as cirrhosis, can develop. In this study, we developed a low-cost, movable single-sided magnet for in vivo liver fat quantification. A gradient field of 73.5 G/cm and a field strength of 0.0725 T were obtained by structurally optimizing the concave U-shaped magnet, on which the region of interest (ROI) was a curved shape about 0.4 mm thick, 8 cm above the surface of the radiofrequency (RF) coil. We constructed a prototype nuclear magnetic-resonance (NMR) relaxometry system based on this optimized magnet. Subsequent phantom experiments demonstrated the effectiveness of the single-sided magnet in evaluating different proton density fat fraction (PDFF) phantoms. As expected, the results of the six phantoms showed good positive correlation between PDFF and the fitted fat amplitude, which suggested that single-sided NMR relaxometry could be used to quantify liver fat in vivo.
Collapse
Affiliation(s)
- Ya Wang
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China; School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China
| | - Yajie Xu
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China
| | - Mingkang Zhang
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China; School of Electronic and Information Engineering, Changchun University of Science and Technology, 130022, Changchun, China
| | - Temitope Emmanuel Komolafe
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China; School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China
| | - Weiqian Wang
- Wuxi Marvel Stone Healthcare Co. Ltd., Wuxi 214135, Jiangsu, China
| | - Hai Luo
- Wuxi Marvel Stone Healthcare Co. Ltd., Wuxi 214135, Jiangsu, China
| | - Xiao Chen
- Wuxi Marvel Stone Healthcare Co. Ltd., Wuxi 214135, Jiangsu, China
| | - Xiaodong Yang
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China.
| | - Ziyue Wu
- Wuxi Marvel Stone Healthcare Co. Ltd., Wuxi 214135, Jiangsu, China.
| |
Collapse
|
5
|
New Insights to Characterize Paint Varnishes and to Study Water in Paintings by Nuclear Magnetic Resonance Spectroscopy (NMR). MAGNETOCHEMISTRY 2020. [DOI: 10.3390/magnetochemistry6020021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Paintings are complex multi-layered systems made of organic and inorganic materials. Several factors can affect the degradation of paintings, such as environmental conditions, past restoration works and, finally, the type of painting technique and the art materials used over the centuries. The chemical–physical characterization of paintings is a constant challenge that requires research into and the development of novel analytical methodologies and processes. In recent years, solvents and water-related issues in paintings are attracting more attention, and several studies have been focused on analyzing the interaction between water molecules and the constitutive materials. In this study, recent applications applying different NMR methodologies were shown, highlighting the weakness and the strength of the techniques in analyzing paintings. In particular, the study of water and its diffusive interactions within wall and oil paintings was performed to prove how the portable NMR can be used directly in museums for planning restoration work and to monitor the degradation processes. Furthermore, some preliminary results on the analysis of varnishes and binders, such us linseed oil, shellac, sandarac and colophony resins, were obtained by 1H HR-MAS NMR spectroscopy, highlighting the weakness and strengths of this technique in the field of conservation science.
Collapse
|