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Vojo Jovanov (Faculty of Technology and Metallurgy - Skopje)Poster presentation
The global transition toward renewable energy sources and the ongoing replacement of fossil fuels have intensified the demand to valorize food industry side streams into second-generation biofuels, as well as various chemical compounds and biopolymers. Biomethane production via anaerobic digestion represents a viable pathway for converting organic waste into clean energy, in line with circular...
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Prof. Biljana Angjusheva (Faculty of Technology and Metallurgy, University "Ss Cyril and Methodius" in Skopje)Poster presentation
Coal combustion products represent a major industrial waste stream, but their mineral and chemical composition provides opportunities for resource recovery and reuse within the circular economy. This study evaluates the valorization potential of fly ash and bottom ash generated by the lignite-fired REK Bitola thermal power plant in North Macedonia. Several types of CCP’s were investigated...
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Prof. Zarife Bajraktari Gashi (Kosovo)Oral presentation
Abstract The sustainable utilization of industrial by-products is essential for supporting circular economy principles and developing sustainable construction materials. This study evaluates the potential use of fly ash from the Kosovo B Thermal Power Plant as a supplementary cementitious material through microstructural and chemical characterization using Scanning Electron Microscopy (SEM),...
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Angela D'Alise (University of Naples Federico II; CNR-IPCB)Poster presentation
Mulching is a widely used technique in agriculture, employed to reduce soil water evaporation, suppress weed growth, regulate soil temperature, and protect the soil surface. Conventional polyethylene mulch films provide effective agronomic performance; however, their removal after use is often incomplete, leaving fragments that may persist and accumulate in agricultural soils. These drawbacks...
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Pierfrancesco Cerruti (Institute of Polymers, Composites and Biomaterials, National Research Council of Italy (CNR-IPCB))Oral presentation
Chemical recycling of epoxy–anhydride thermosets remains challenging due to the need to combine efficient network cleavage with mild conditions, process simplicity and recovery of the reaction media. Existing approaches often rely on harsh conditions, high-boiling solvents or catalysts that complicate downstream separation and recycling [1,2]. Recent studies have highlighted solvolysis as a...
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Angela MarottaOral presentation
Vitrimers are a class of crosslinked polymers that combine the mechanical robustness of thermosets with the reprocessability of thermoplastics, owing to dynamic covalent bonds that allow the network to rearrange under an external stimulus, typically heat. Despite the well-established chemistry behind these dynamic bonds, controlling and predicting the reactivity of vitrimeric systems remains...
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Ms Iva Dimitrievska (Faculty of Technology and Metallurgy - Skopje)Oral presentation
Over the past decade, polymer nanocomposites have significantly advanced electrochemical sensors for therapeutic drug monitoring and chemotherapy dose control. This study develops screen-printed polymer and polymer-composite electrochemical sensors evaluated across four surface modification strategies: a composite ink with a synthesized nanohybrid, an applied polymer layer, an...
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Ms Jan Sena Altınay (Erciyes University, Türkiye)Oral presentation
Abstract
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Additive manufacturing has attracted increasing attention as a versatile production technology for manufacturing lightweight, complex, and customized polymeric components. Poly(lactic acid) (PLA) is one of the most widely used materials in fused filament fabrication because of its ease of processing, relatively low melting temperature, and bio-based origin. However, its inherent... -
Karolina Głowacka (University of Warsaw)Oral presentation
An essential challenge in tissue engineering is the development of substrates that allow precise control over cell distribution and behavior on their surface. Substrates used for cell culture can significantly influence cell adhesion, proliferation, and directed cell growth.
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The aim of this study was to obtain substrates with controlled surface morphology using the dewetting phenomenon of... -
Darko Stojanov (Alkaloid AD Skopje)Oral presentation
Noscapine is a pharmacologically relevant phthalide isoquinoline alkaloid which was historically used as an antitussive agent, but in recent years has attracted increasing interest in its potential anticancer activity. Owing to its structural similarity to other opium alkaloids and the complexity of matrices in which it may be encountered, its determination requires sensitive and selective...
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5. Electromagnetic Interference Shielding in E-Beam Irradiated Graphene/MWCNT Polymer NanocompositesMs Iva Dimitrievska (Faculty of Technology and Metallurgy - Skopje)Poster presentation
Rapid advancements in wireless communications and smart devices have intensified electromagnetic interference, creating an urgent demand for lightweight, efficient shielding materials. Hybrid graphene and multi-walled carbon nanotube (MWCNT) nanostructures offer ideal properties due to high electrical conductivity, low density, and flexibility. This work evaluates the S-band (2.65 – 3.90 GHz)...
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Jovana Petkovska (Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University in Skopje, North Macedonia)Poster presentation
Nylon–cotton (NYCO) fabric combines comfort and durability, but its flammability limits protective applications. A water-based complex of egg white proteins (EWP), pectin (P), and guanidine phosphate (GP) was deposited on NYCO fabric through a two-step process. The coating deposition, surface characteristics, flame-retardant performance, and thermal degradation mechanism of NYCO coated with 4%...
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Stefan Kuvendziev (Full Professor), Ms Iva Dimitrievska (Faculty of Technology and Metallurgy - Skopje)Poster presentation
The perpetual expansion of wireless technologies, 5G and smart electronic devices has intensified electromagnetic interference (EMI) pollution, increasing the demand for efficient, lightweight and flexible shielding materials. In this study, thin PMMA-based nanocomposites reinforced with hybrid graphene/multi-walled carbon nanotube (G-CNT) structures were developed and evaluated for...
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Marija Prosheva (Faculty of Technology and Metallurgy)Poster presentation
Waterborne polymer composites based on poly(methyl methacrylate-co-butyl acrylate-co-glycidyl methacrylate) [P(MMA-BA-GMA)] and a hybrid filler of reduced graphene oxide (rGO) and metal phthalocyanines (MPcs) were developed and characterized. Composites containing 3 wt% rGO/MPc were obtained by emulsion mixing of the aqueous polymer and filler dispersions.
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Transmission electron microscopy... -
Dragica Chamovska (Faculty of Technology and Metallurgy, Ss. Cyril and Methodius Univercity in Skopje, R. N. Macedonia)Poster presentation
Recent studies have raised environmental concerns about conventional metal corrosion inhibitors because of their poor ecotoxicity, limited biodegradability, groundwater and soil contamination, and eutrophication. Therefore, the focus of the scientific interest is oriented toward eco-friendly, naturally derived materials as alternatives to traditional inhibitors. Among these renewable...
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Ms Isidora Dimitrievska (Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University in Skopje)Poster presentation
Green walnut (Juglans regia L.) husk is a valuable agro-industrial byproduct rich in bioactive compounds. In this study, ultrasound-assisted extraction (UAE) was employed for the recovery of polyphenolic compounds from green walnut husk using environmentally friendly solvents. The design of experiments included three independent variables: solvent composition (water, 20 %, 50 %, and 70 %...
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Ms Melek Kabak (Istanbul University-Cerrahpaşa, Graduate School of Education, Department of Chemistry), Zeynep Sude Çifcibaşı (Gebze Technical University)Poster presentation
Lignin-based hydrogels offer a sustainable route for developing functional polymeric matrices from renewable biomass resources. In this study, organosolv lignin obtained from hazelnut-shell biomass was combined with poly(vinyl alcohol) (PVA) to produce borate-crosslinked hydrogels intended for sustained boron release. Formulation conditions were optimized to obtain reproducible and...
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Prof. Goran Nachevski (Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University in Skopje)Poster presentation
CBAM or Carbon Border Adjustment Mechanism is an instrument of European Union climate policy that, on the one hand, protects member states from goods that are produced in conditions where there are no emission limits, and on the other hand, intends to encourage economic partners outside the EU to have more climate sustainable production. The CBAM regulation entered into force in October 2023,...
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Federico Olivieri (Institute for Polymers, Composites and Biomaterials - National Research Council (IPCB-CNR), Italy)Oral presentation
Graphene oxide (GO)-based coatings offer a versatile and sustainable strategy for enhancing the functional properties of polymer substrates for packaging and protective applications. Their layered structure, high aspect ratio, and self-assembly ability enable the formation of thin and flexible coatings with excellent barrier properties and multifunctionality. This work explores two...
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Tajana KostadinovaPoster presentation
Artificial intelligence (AI), particularly machine learning (ML), is fundamentally transforming polymer design and chemistry. Traditional empirical methods are increasingly inadequate for meeting the growing demand for advanced materials and navigating the vast chemical space of polymers. AI-driven approaches enable researchers to predict polymer properties, optimize synthesis processes, and...
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Emilija Fidanchevski (Prof.)Poster presentation
Transitional nano-alumina (TNA) is a promising nanomaterial for catalysis and high-performance composite production. In this work, we report the results of a preliminary study of its thermally induced structural and electronic dynamics. The structure of TNA powder was investigated with the powder X-ray diffraction method. Average particle size and lattice strain were determined by the...
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Koya Furuichi (Osaka Metropolitan University)Oral presentation
In the necking propagation of polypropylene (PP), deformation progresses unevenly within the test specimen; therefore, it is important to distinguish and characterize the mechanical responses of the necking-propagated and non-propagated regions. In this study, we investigated the effect of the loading condition on the relationship between necking propagation and local Vickers...
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Marija Prosheva (Faculty of Technology and Metallurgy)Poster presentation
Waterborne polymer composites containing reduced graphene oxide (rGO)/multi-walled carbon nanotube (MWCNT) hybrid fillers were prepared and characterized in terms of their mechanical and electrical properties. The hybrid fillers were incorporated into a methacrylic polymer matrix at 0.25, 0.5, and 1.0 wt% loadings, using rGO:MWCNT weight ratios of 10:1, 1:1, and 1:10. The composites were...
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