Conservation and Restoration

Roman cavalry sword "spatha"

Conservation & Restoration of Cultural Heritage
As a consortium member and key developer of the EU Horizon 2020 project SensMat (Grant Agreement No 814596), we developed and
applied a portable Raman spectrometer for the non-destructive analysis of sensitive cultural heritage materials.
Materials Analyzed:
- Inorganic pigments: Malachite, azurite, vermilion, lead white, ochres
- Metal corrosion products: Cuprite, tenorite, brochantite on archaeological artifacts
- Organic materials: Drying oils, resins, protein-based binders
-
Degradation markers: Sulfate, nitrate salts causing efflorescence
Substrates: Wood, stone, plaster, mural grounds
Case Studies:
-
Roman cavalry sword ("spatha")
Identification of green corrosion products as malachite (Cu₂CO₃(OH)₂)
Assessment of preservation state and conservation needs
-
9th-century wall paintings, Corvey Abbey
Analysis of pigment composition and degradation
Support for restoration planning and documentation
Your Benefit:
Preserve cultural heritage with scientific precision — using non-destructive, mobile Raman
microspectroscopy and custom software solutions:
-
No sample damage — ideal for irreplaceable artifacts
-
On-site capability — direct analysis in museums, churches, or excavation sites
-
Full documentation — automated PDF reports with spectra, metadata, and interpretation
-
Fast substance matching — via SQLite database with >200 reference spectra
- Offline operation — secure use in restricted environments
Technology Transfer to Public Safety:
The analytical methods developed for cultural heritage are directly transferable to forensic investigations, such as:
- Identification of ignitable liquids at fire scenes
- Analysis of organic residues on tools or packaging
- Support for criminal investigations through non-destructive, on-
site analysis
You can find more information about the EU project here.
Here are some examples:
1. Raman spectrum of a green copper mineral pigment :

2. Raman measurements on wall paintings (9th century) in the abbey of Corvey:
