Microscopic Analysis of Wall Painting Techniques: Laboratory Replicas and Romanesque Case Studies in Southern Switzerland

2018 ◽  
Vol 63 (6) ◽  
pp. 326-341 ◽  
Author(s):  
Lucia Regazzoni ◽  
Giovanni Cavallo ◽  
Danilo Biondelli ◽  
Jacopo Gilardi
Keyword(s):  
Case Studies ◽  
Microscopic Analysis ◽  
Wall Painting ◽  
Painting Techniques

Wall paintings – diagnostic and archaeometric studies

2018 ◽  
Vol 4 (4) ◽  
Author(s):  
Susanna Bracci ◽  
Giovanni Bartolozzi
Keyword(s):  
Case Studies ◽  
Recent Literature ◽  
Wall Painting ◽  
Wall Paintings

Abstract The paper deals with the techniques and protocols used for studying wall paintings. A brief introduction about the more recent literature dealing with archaeometric and diagnostic analyses of wall paintings is reported. After that, the illustration of three case studies, spanning from Roman to contemporary wall painting are described.

Late mediaeval wall painting techniques at Farleigh Hungerford Castle and their context

1998 ◽  
Vol 43 (sup1) ◽  
pp. 59-64 ◽  
Author(s):  
Helen Howard ◽  
Tracy Manning ◽  
Sophie Stewart
Keyword(s):  
Wall Painting ◽  
Painting Techniques

scholarly journals Wall paintings through the ages: the medieval period (Italy, twelfth to fifteenth century)

2021 ◽  
Vol 13 (11) ◽  
Author(s):  
Zuleika Murat
Keyword(s):  
Fifteenth Century ◽  
Case Studies ◽  
Middle Ages ◽  
Wall Painting ◽  
Wall Paintings ◽  
Abstract Concepts ◽  
Medieval Period ◽  
Scientific Investigations ◽  
Materials Used ◽  
Technical Features

AbstractThis paper is devoted to wall painting in the Middle Ages (ca. late fifth to early fifteenth centuries), with a focus on twelfth to fifteenth century Italy. It is conceived as a critical conflation of diverse methodologies, approaches and research tools, with the aim of investigating the topic from different and complementary perspectives. Historical textual sources provide the interpretive framework for the examination, which is conducted on specific, yet interrelated aspects. Special attention is paid to technical features, including the methods and materials used to produce wall paintings. Data from scientific investigations are incorporated into the discussion with the purpose of elucidating theoretical conceptualizations with material pieces of evidence. A number of selected case studies is presented within the text in order to keep the focus of analysis on the materiality of the paintings, hence avoiding the formulation of abstract concepts in favour of more pragmatic approaches.

scholarly journals Consolidation tests in archaeological wall painting: comparing treatments depending on the painting technique

2021 ◽  
Author(s):  
Teresa López-Martínez ◽  
Francisco José Collado-Montero ◽  
Ana García-Bueno
Keyword(s):  
Acrylic Resin ◽  
Wall Painting ◽  
Ethyl Silicate ◽  
Wall Paintings ◽  
Painting Technique ◽  
Stone Material ◽  
Painting Techniques

Consolidation is a treatment of great importance for archaeological wall paintings due to their state of preservation, in which the lack of cohesion of the mortar and the pulverulence of the pictorial layer are common. The objective of this work has been to evaluate consolidation tests that have been carried out on decontextualized fragments belonging to five different wall paintings (from different periods and with differences in their state of conservation and in their painting techniques). For this, two of the most used treatments in consolidation of archaeological coatings, such as an acrylic resin and ethyl silicate, have been compared with two treatments that use nanoparticles, such as nanolimes and nano ethyl silicate, together with a bioconsolidation treatment used until present mainly for the consolidation of stone material: bacterial carbonatogenesis.

scholarly journals AUTENTYZM DEKORACJI MALARSKICH STAREGO MIASTA W WARSZAWIE

2017 ◽  
pp. 93-103
Author(s):  
Anna Jagiellak
Keyword(s):  
Complete Removal ◽  
Essential Elements ◽  
Wall Painting ◽  
Technological Method ◽  
Traditional Technologies ◽  
Painting Techniques

The polychrome decorations of the Warsaw's Old Town have been recognised as the essential elements that contribute to the justification of its Outstanding Universal Value.This decision is a guideline that obliges to preserve the original polychromies and also determines the technological method of their conservation. In practice, preserving the authenticity of the traditional wall painting techniques puts contractors to task of conserving the relics of the original decorations and plasters from the 50s and 60s.The latter however, are not perceived as valuable assets. The degree of the destruction appear to be a sufficient justification for their complete removal. For that reason the elevations, being next renovated with the help of modern preparations lose their old-town character. The article raises the problem both of underestimation of the value of the original fabric created during the reconstruction of the Old Town as well as abandoning the traditional technologies employed originally in the monument.

Preparatory Procedures for Electron Microscopic Analysis at the Molecular Level of Resolution

1978 ◽  
Vol 36 (3) ◽  
pp. 516-520
Author(s):  
F.J. Sjostrand
Keyword(s):  
Electron Microscope ◽  
Molecular Level ◽  
Microscopic Analysis ◽  
Resolving Power ◽  
Cellular Structures ◽  
Electron Microscopic ◽  
Systematic Analysis ◽  
Technical Developments ◽  
Thin Sectioning ◽  
Obvious Reason

In the 1940's and 1950's electron microscopy conferences were attended with everybody interested in learning about the latest technical developments for one very obvious reason. There was the electron microscope with its outstanding performance but nobody could make very much use of it because we were lacking proper techniques to prepare biological specimens. The development of the thin sectioning technique with its perfectioning in 1952 changed the situation and systematic analysis of the structure of cells could now be pursued. Since then electron microscopists have in general become satisfied with the level of resolution at which cellular structures can be analyzed when applying this technique. There has been little interest in trying to push the limit of resolution closer to that determined by the resolving power of the electron microscope.

Electron Microscopic Analysis of Myonecrosis Induced by a Pure Component Isolated From Rattlesnake Venom

1976 ◽  
Vol 34 ◽  
pp. 292-293
Author(s):  
Charlotte L. Ownby ◽  
David Cameron ◽  
Anthony T. Tu
Keyword(s):  
Gel Filtration ◽  
Microscopic Analysis ◽  
The United States ◽  
Exchange Chromatography ◽  
Pure Component ◽  
Electron Microscopic Level ◽  
Electron Microscopic ◽  
Mouse Muscle ◽  
Major Health Problem ◽  
Rattlesnake Venom

In the United States the major health problem resulting from snakebite poisoning is local tissue damage, i.e. hemorrhage and myonecrosis. Since commercial antivenin does not usually prevent such damage to tissue, a more effective treatment of snakebite-induced myonecrosis is needed. To aid in the development of such a treatment the pathogenesis of myonecrosis induced by a pure component of rattlesnake venom was studied at the electron microscopic level.The pure component, a small (4,300 mol. wt.), basic (isoelectric point of 9.6) protein, was isolated from crude prairie rattlesnake (Crotalus viridis viridis) venom by gel filtration (Sephadex G-50) followed by cation exchange chromatography (Sephadex C-25), and shown to be pure by electrophoresis. Selection of the myotoxic component was based on light microscopic observations of injected mouse muscle.

Molecular and Microscopic Analysis of Altered Gene Expression in Transgenic and Gene Targeted Mice

1996 ◽  
Vol 54 ◽  
pp. 12-13
Author(s):  
W. K. Jones ◽  
J. Robbins
Keyword(s):  
Gene Expression ◽  
Pulmonary Veins ◽  
Microscopic Analysis ◽  
Mouse Tissue ◽  
Adult Heart ◽  
Heavy Chains ◽  
Altered Gene Expression ◽  
Altered Gene ◽  
Pulmonary Myocardium

Two myosin heavy chains (MyHC) are expressed in the mammalian heart and are differentially regulated during development. In the mouse, the α-MyHC is expressed constitutively in the atrium. At birth, the β-MyHC is downregulated and replaced by the α-MyHC, which is the sole cardiac MyHC isoform in the adult heart. We have employed transgenic and gene-targeting methodologies to study the regulation of cardiac MyHC gene expression and the functional and developmental consequences of altered α-MyHC expression in the mouse.We previously characterized an α-MyHC promoter capable of driving tissue-specific and developmentally correct expression of a CAT (chloramphenicol acetyltransferase) marker in the mouse. Tissue surveys detected a small amount of CAT activity in the lung (Fig. 1a). The results of in situ hybridization analyses indicated that the pattern of CAT transcript in the adult heart (Fig. 1b, top panel) is the same as that of α-MyHC (Fig. 1b, lower panel). The α-MyHC gene is expressed in a layer of cardiac muscle (pulmonary myocardium) associated with the pulmonary veins (Fig. 1c). These studies extend our understanding of α-MyHC expression and delimit a third cardiac compartment.

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