Proteomics

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Molecular characterization of adhesives (glue lining pastes) used in restoration


ABSTRACT: The molecular characterization of samples from works of art can provide valuable insights into the composition of ancient restoration materials and their conservation state. Here, we present a novel experimental protocol for the molecular characterization of a specific adhesive used in historical painting restoration, known as "glue lining pastes." Due to the high molecular complexity of these adhesives, we propose a multi-step extraction protocol to simultaneously recover and fractionate from a single microsample the three main classes of biomolecules contained in glue pastes (lipids, polysaccharides, and proteins). High-performance separation coupled with high-resolution MS techniques were applied to the isolated fractions to identify specific components. The proposed method was optimized using test specimens of various traditional glue pastes applied to canvases and successfully applied to a historical glue paste sample from the 17th-century painting "La fuga in Egitto," part of the Pagliara collection at the University Suor Orsola Benincasa (Naples, Italy). The data collected in this work provide insights into the specific recipe used for adhesive preparation, supporting artistic and historical interpretations, and contributing to a broader understanding of old restoration practices.

INSTRUMENT(S): LTQ Orbitrap XL

ORGANISM(S): Linum Usitatissimum Bos Taurus (bovine) Secale Cereale Oryctolagus Cuniculus (rabbit) Acipenser Sturio Triticum Aestivum (wheat)

SUBMITTER: Brunella Cipolletta  

LAB HEAD: Andrea Carpentieri

PROVIDER: PXD051480 | Pride | 2024-10-17

REPOSITORIES: Pride

Dataset's files

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Action DRS
B1_NCBInr.raw Raw
B2_NCBInr.raw Raw
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C2_NCBInr.raw Raw
D1_NCBInr.raw Raw
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Publications

Molecular Characterization of Adhesives (Glue Lining Pastes) Used in Restoration.

Cipolletta B B   Morelli M M   Perlingieri C C   Somma P I PI   Amoresano A A   Marino G G   Carpentieri A A  

Analytical chemistry 20241009 42


The molecular characterization of samples from works of art can provide valuable insights into the composition of ancient restoration materials and their conservation state. Here, we present a novel analytical protocol for the molecular characterization of a specific adhesive used in historical painting restoration, known as "glue lining pastes." Due to the high molecular complexity of these adhesives, we propose a multistep extraction protocol to recover and fractionate from a single microsampl  ...[more]

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