The first detailed report of the Raman spectroscopic studies of paint specimens from this artwork has been published (February 2007) in a paper by Professor Howell Edwards (Chemical & Forensic Sciences, University of Bradford) and Timothy Benoy (The de Brecy Trust) in a special issue of the international scientific journal, Analytical and Bioanalytical Chemistry, devoted to Art and Archaeology applications.
The painting, which is known as the 'de Brécy Tondo', depicts the central figures of Raphael's celebrated Sistine Madonna, displayed in Dresden, has been the subject of over twenty years' academic research carried out in the UK and internationally.
The paper, published in Analytical and Bioanalytical Chemistry, describes the application of laser Raman microscopic non-destructive analysis to the molecular characterisation of pigments and their binding media which formed a vital part of the wider-ranging analytical investigation of the painting.
Crucially, materials identified in the Raman spectroscopic study include the lead-based yellow pigment massicot, which was effectively superseded by other yellow pigments after 1700, and a vegetable-derived medium of a starch-based glue that was typical of Renaissance practice.
Scientific molecular and elemental analyses of paint specimens and their substrate from a Madonna and Child painting have been undertaken in eight independent European analytical laboratories and support historical and stylistic conclusions that are consistent with the attribution of the work to the Renaissance period – lasting between the 14th and 16th centuries.
Howell Edwards, Professor of Molecular Spectroscopy and Head of the Division of Chemical and Forensic Sciences at the University of Bradford, said: “From these analytical findings, I am entirely confident that the tondo painting is consistent with an early, pre-1700, Renaissance work."
Timothy Benoy, Honorary Secretary of The de Brecy Trust, said: "The Trust is delighted to have confirmed that these latest scientific techniques give further support to its views that the Tondo is a work from the Renaissance period.”
Complementing conventional antibiotics
24.05.2018 | Goethe-Universität Frankfurt am Main
Building a brain, cell by cell: Researchers make a mini neuron network (of two)
23.05.2018 | Institute of Industrial Science, The University of Tokyo
A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.
The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
24.05.2018 | Ecology, The Environment and Conservation
24.05.2018 | Medical Engineering
24.05.2018 | Physics and Astronomy