A5033114118- Cultural Heritage Materials Analysis
- Building materials and conservation
- Conservation Techniques and Studies
- Biosensors and Analytical Detection
- Gold and Silver Nanoparticles Synthesis and Applications
- Lichen and fungal ecology
- Spectroscopy and Chemometric Analyses
- Nanoparticles: synthesis and applications
- Lignin and Wood Chemistry
- Phytochemicals and Antioxidant Activities
- Color Science and Applications
- Biocrusts and Microbial Ecology
- Microplastics and Plastic Pollution
- Food, Nutrition, and Cultural Practices
- Wood and Agarwood Research
- Laser-Ablation Synthesis of Nanoparticles
- Mycorrhizal Fungi and Plant Interactions
- Higher Education and Teaching Methods
- Advanced Fluorescence Microscopy Techniques
- Bee Products Chemical Analysis
- Advanced Cellulose Research Studies
- Folklore, Mythology, and Literature Studies
Institute for the Protection of Cultural Heritage of Slovenia
2012-2025
University of Ljubljana
2016-2024
Instituto de Estructura de la Materia
2018
Abstract The primary purpose of the study, as part planned conservation work, was to uncover all aspects autochthonous biofilm pertaining formation numerous deterioration symptoms occurring on limestone Rožanec Mithraeum monument in Slovenia. Using state-of-the-art sequencing technologies combining mycobiome data with observations made via light and spectroscopic (FTIR Raman) microscopy analyses pointed out epilithic lichen Gyalecta jenensis its photobiont, carotenoid-rich Trentepohlia aurea...
Copper‐based pigments, such as verdigris, have caused severe damage to many important historical documents, and their preservation remains a significant concern for paper conservators researchers. This study re‐evaluates the efficacy of two promising antioxidants, tetrabutylammonium bromide (TBABr) benzotriazole (BTA), stabilization agents documents containing verdigris pigment. To assess stability mock‐up papers, various parameters were measured during accelerated degradation, including...
Advanced imaging techniques can noninvasively characterise, monitor, and evaluate how conservation treatments affect cultural heritage objects. In this specific field, hyperspectral allows nondestructive characterisation of materials by identifying characterising colouring agents, binders, protective coatings as components an object’s original construction or later historic additions. Furthermore, be used to monitor deterioration changes caused environmental conditions. This paper examines...
Abstract Raman spectral references for various formulations of iron gall inks, logwood inks and mixtures both types were acquired during this study. The samples, either liquid or dry applied on paper, analysed using a portable spectrometer, with 852 785 nm excitation lines, confocal dispersive microscope two different excitations, namely 532 nm. It was found that longer wavelengths are more suitable the analysis response is relatively dependent line. For mixtures, it suggested analyses be...
In the present work, a new substrate is proposed for surface‐enhanced Raman spectroscopy (SERS) analysis of samples, which are cultural heritage importance. A and simple procedure presented preparation stable SERS‐active substrate. It based on photoreduction silver nitrate by ultraviolet light utilising hydroxypropyl cellulose as stabilising agent. The substrate's characteristics were tested compared with known substrate: citrate‐reduced colloid, alizarin reference material. Using substrate,...
The presented study describes the deterioration of a traditional pigment, malachite—[Cu 2 (CO 3 )(OH) ] in different binders, as consequence environmental effects acting on paint layers which were prepared according to Baroque recipes. Malachite has often been reported be very permanent all binding media; however, investigations aged and non‐aged by means Raman microscopy have shown instability carbonate part molecule, especially when malachite is present an egg yolk medium. Decomposition...
Abstract In this work, we showed the potential of photoreduced surface‐enhanced Raman spectroscopy or scattering (SERS) substrate for detection organic colourants (in mixtures) in lipid and proteinaceous paint layers. Different such as madder lake pigment, cochineal pigment lac dye were included study. SERS procedure with different approaches was tested, namely, direct application, soaking (incubation) sample hydrolysis hydrofluoric (HF) acid vapours. For analysis bound linseed oil, a...
Abstract In this study, a painted beehive panel from the collection of Slovene Ethnographic Museum was examined with respect to its material composition aim reveal painting technique. Due state degradation due outdoor weathering (UV irradiation, rainfall, extreme temperature and humidity fluctuations), as well past conservation interventions, object represented complex analytical challenge. We aimed for non-invasive techniques (FTIR in reflection mode, Raman spectroscopy hyperspectral...
Abstract Silver nanoparticles were fabricated in situ the hydroxypropyl cellulose (HPC) matrix by irradiation at different wavelengths (365 and 254 nm) following principles of green chemistry. HPC is involved silver reduction process stabilization as well. Characteristics dispersions depend on weight ratio between ions HPC, time, energy incident irradiation. Interaction higher energies leads to degradation matrix, resulting also lower pH values dispersion. The latter even more pronounced...
The aim of the study was to address problematics proteinous binder characterization, within a cross section painted model samples, using immunofluorescence microscopy. Problems arise from certain pigments which can alter epitope sites target binders (lead white and verdigris) or exhibit strong natural autofluorescence (lake pigments). Therefore, dual layered samples were prepared containing lower egg tempera paint an upper oil paint, both paints made same pigment. As extra challenge for...
Abstract Literature research revealed that scientific work on the characteristics of historical decorative laminates (DLs), like typology, and particularly material-technical aspects related to composition build-up is scarce in field conservation-restoration modern materials. This paper aims take first step towards filling this knowledge gap by demonstrating an in-depth literature complementary chemical-physical analytical techniques are useful characterising contextualising historic...
Abstract Fires can have a negative impact on the environment, human health, property and ultimately also various objects of cultural heritage (CH). This paper deals with an investigation into degradation selected proteinaceous paint layers that were exposed to fire-related effects (i.e., fire effluents and/or high temperatures) in modified cone-calorimeter system. Paint egg yolk adhesive (E) lead white tempera (E + LW) impacts top CH stack specially designed test chamber. On stack,...
Painted beehive panels are representative examples of folk art specific and unique to Slovenia. Although without precedence in European ethnographic art, not much attention has been given the past artists’ materials involved creation these paintings. This study, which included three different (dating from beginning 19th second half 20th centuries), was focused on material characterization using Raman Fourier‐transform infrared spectrometer (FTIR) spectroscopy (non‐, minimally invasive...
Five major types of lichen were discovered in the investigated specimens from Dornava Manor. All these lichens and/or their combinations are considered common lichenous overgrowth for region and its climate. For all positively identified species, it is that they found on a wide variety calciferous or base-rich substrata, incl. mortar, brick, roofing tiles, walls, also large urban areas (are not particularly disturbed by pollution/eutrophication), therefore preferring neutral to basic...
We addressed the problematics of proteinous binder characterization, within a cross section painting, using immunofluorescence microscopy (IFM). Problems arise from certain pigments which can alter epitope sites target binders (lead white and Verdigris) or exhibit strong natural autofluorescence (lake pigments). prepared dual triple layered model samples containing lower egg tempera paint an upper oil paint, both paints were made same pigment. As extra challenge for IFM, half additionally...
Abstract In this study, a painted beehive panel from the collection of Slovene Ethnographic Museum was examined with respect to its material composition aim reveal painting technique. Due state degradation due outdoor weathering (UV irradiation, rainfall, extreme temperature and humidity fluctuations), as well past conservation interventions, object represented complex analytical challenge. We aimed for non-invasive techniques (FTIR in reflection mode, Raman spectroscopy hyperspectral...