Katja Andrina Kravanja

ORCID: 0000-0003-1327-0723
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Research Areas
  • Bone Tissue Engineering Materials
  • Phase Equilibria and Thermodynamics
  • Microencapsulation and Drying Processes
  • Aerogels and thermal insulation
  • Orthopaedic implants and arthroplasty
  • Polymer Surface Interaction Studies
  • Drug Solubulity and Delivery Systems
  • Forensic Fingerprint Detection Methods
  • MXene and MAX Phase Materials
  • Analytical Chemistry and Chromatography
  • thermodynamics and calorimetric analyses
  • Essential Oils and Antimicrobial Activity
  • Cultural Heritage Materials Analysis
  • Polymer Foaming and Composites
  • Titanium Alloys Microstructure and Properties
  • Mesoporous Materials and Catalysis
  • Electrophoretic Deposition in Materials Science
  • Ion-surface interactions and analysis

University of Maribor
2021-2024

The presented study shows the possibility of using bioaerogels, namely neat alginate, pectin, chitosan aerogels, and alginate pectin aerogels coated with chitosan, as drug delivery systems for esomeprazole. Two different techniques were used impregnation esomeprazole: Supercritical impregnation, diffusion via ethanol during sol-gel synthesis. prepared samples characterized by employing N2 adsorption-desorption analysis, TGA/DSC, FTIR. achieved loadings satisfactory all tested showed to be...

10.3390/polym13111882 article EN Polymers 2021-06-06

Titania nanotubes are gaining prominence in the biomedical field as implant materials due to their mechanical durability, nano-rough properties, and positive influence on cellular response. This work aimed synthesize titania titanium oxynitride (Ti–O–N) nanotubular arrays TiAl6V4 substrates using an anodic oxidation process followed by annealing air or additional nitridation NH3 atmosphere. Different layers of unique morphology structure were fabricated investigated advanced surface analysis...

10.1016/j.jmrt.2023.04.021 article EN cc-by-nc-nd Journal of Materials Research and Technology 2023-04-09

Technologies involving sub- and supercritical fluids offer the possibility to obtain new products with special characteristics, which are especially needed in pharmaceutical industry. The use of or for processing can also address legal limits solvent residues restrictions on conventional solvents, while enabling processes that environmentally friendly sustainable. Extraction substances from plant materials, their situ formulation specific properties, particle formation, foaming, deposition,...

10.18690/actabiomed.265 article EN Acta Medico-Biotechnica 2024-07-11

The development of drug-eluting bioactive coatings for orthopedic implants has gained increased interest in recent years with an intent to reduce postoperative complications and improve tissue regeneration at the implant interface. Due remarkable benefits natural polyphenolic components, such as antioxidant, antimicrobial, anti-inflammatory, anti-cancer activity, their ubiquitous availability nature, they are promising candidates incorporation into advanced medical devices future clinical...

10.3389/fmats.2022.878176 article EN cc-by Frontiers in Materials 2022-04-08

In this study, a novel biodegradable poly(lactic-co-glycolic) acid coating containing model anti-inflammatory drug (ketoprofen) was prepared on TiAl6V4 substrate for use in orthopedic medicine by two-step process combining drop casting and supercritical CO2-assisted foaming. The first investigated surface analysis techniques using time-of-flight secondary ion mass spectrometry X-ray photoelectron spectroscopy. combined results confirmed the loading of ketoprofen its homogeneous spatial...

10.1016/j.porgcoat.2023.108026 article EN cc-by Progress in Organic Coatings 2023-10-16

• First use of ToF-SIMS with PCA and MCR for forensic ink analysis. Clear differentiation six blue pen inks via advanced statistical methods. Non-destructive identification strokes in forgery cases. provides exact stroke ID based on unique spectral signals. Detailed spatial analysis using large-area imaging. This study investigates the time-of-flight secondary ion mass spectrometry (ToF-SIMS) combined multivariate document Strokes commercially available pens were analysed ToF-SIMS, data...

10.1016/j.microc.2024.111425 article EN cc-by Microchemical Journal 2024-08-13
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