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Non-contact, Label-free Monitoring of Cells and Extracellular Matrix using Raman Spectroscopy
Published on: May 29, 2012
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In situ Raman mapping of art objects
D Lauwers1, Ph Brondeel2, L Moens2
1Department of Analytical Chemistry, Raman Spectroscopy Research Group, Ghent University, Krijgslaan 281, S12, 9000 Ghent, Belgium raman@ugent.be.
Summary
A new in situ Raman mapping system non-destructively analyzes art objects, revealing chemical compound distribution. This technique offers promising advancements for art investigation and conservation science.
Area of Science:
- Analytical Chemistry
- Materials Science
- Art Conservation Science
Background:
- Raman spectroscopy is a valuable non-destructive technique for art object investigation.
- In situ analysis of art objects is crucial for understanding their composition and condition.
- Current laboratory approaches limit the spatial analysis of compounds in artworks.
Purpose of the Study:
- To develop an in situ Raman mapping system for art objects.
- To correlate chemical information with the spatial distribution of compounds.
- To address challenges in developing portable Raman mapping systems for field applications.
Main Methods:
- Development of an in situ Raman mapping system with stable positioning.
- Utilizing nineteenth-century porcelain cards for system calibration and testing.
- Implementing a four-step post-processing workflow: data import, visualization, variable extraction, and Raman image creation.
Main Results:
- Successful development of an in situ Raman mapping system for art analysis.
- Demonstration of the system's capability to map chemical distribution spatially.
- Validation of the post-processing workflow for large spectral datasets.
Conclusions:
- The developed in situ Raman mapping system shows significant promise for art investigation.
- The system enables detailed chemical mapping of art objects in their original setting.
- Further development and application of this technique will enhance art conservation and analysis.
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