28th Congress of SCTM

Session

Parrallel E-poster Presentations (2C)

25 Sept 2026, 11:40

Caneo Hall (Metropol Lake Resort)

25. Almond Shell as a Sustainable Sensor Material for Real-Time Heavy Metals Monitoring

Katarina Nikolić (Institute of Nuclear Sciences "Vinča", Belgrade)

25/09/2026, 11:40

Physical, structural chemistry, spectroscopy and electrochemistry

E-poster

PSSE

Almond Shell as a Sustainable Sensor Material for Real-Time Heavy Metals Monitoring

Katarina Nikolić1, Milan Kragović1, Marija Stojmenović1, Miodrag Ristović1, Radmila Lišanin1, Janez Kovač2, Jelena Gulicovski1
e-mail: katarina.nikolic@vin.bg.ac.rs

1 “VINČA” Institute of Nuclear Sciences -National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića...

36. Investigation of the Hydrophobicity of Modified Glass in Glass–TEOS–HDTMS Sandwich Structures

Amin Idrizovski (Institute of Chemistry, Faculty of Natural Sciences and Mathematics Ss. Cyril and Methodius University in Skopje, Arhimedova 5, 1000 Skopje, Macedonia), Vladimir Grujovski (Institute of Chemistry, Faculty of Natural Sciences and Mathematics Ss. Cyril and Methodius University in Skopje, Arhimedova 5, 1000 Skopje, Macedonia)

25/09/2026, 11:45

Physical, structural chemistry, spectroscopy and electrochemistry

E-poster

Soda-lime-silicate (SLS) glass is widely used in industry. To render its surface hydrophobic, it is commonly modified using different silane derivatives. Among the most widely used are alkoxysilanes, which can be anchored onto the glass surface through hydrolysis, followed by condensation between the silanol groups of the silane and those on the glass surface. Among the alkoxysilanes,...

111. SYNTHESIS AND CHARACTERIZATION OF THE NOVEL MIXED-HALIDE PEROVSKITE DMAPbI1.5Cl1.5

Jeta Sela (Department of Chemistry, Faculty of Natural Sciences and Mathematics, University of Tetovo, Tetovo, North Macedonia)

25/09/2026, 11:50

Physical, structural chemistry, spectroscopy and electrochemistry

E-poster

Hybrid organic–inorganic perovskites are promising materials for energy-related applications owing to their tunable optoelectronic properties.1 In this work, the novel mixed-halide perovskite [(CH3)2NH2]PbI1.5Cl1.5 (DMAPbI1.5Cl1.5), within the DMAPbX3 (X = I, Br, Cl) family, was synthesized and characterized. The compound was prepared in N,N-dimethylformamide from pre-synthesized DMAPbI3 and...

113. STRUCTURE-PROPERTY RELATIONSHIP AND PLASMON-ENHANCED PHOTOLUMINESCENCE IN Ag@Ag2O CORE-SHELL NANOPARTICLE THIN FILMS

Meri Sokolovska (Ss. Cyril and Methodius University in Skopje, Faculty of Natural Sciences and Mathematics, Arhimedova 5, 1000 Skopje, Macedonia)

25/09/2026, 11:55

Physical, structural chemistry, spectroscopy and electrochemistry

E-poster

PSSE (Scientific Section)

STRUCTURE-PROPERTY RELATIONSHIP AND PLASMON-ENHANCED PHOTOLUMINESCENCE IN Ag@Ag2O CORE-SHELL NANOPARTICLE THIN FILMS

Meri Sokolovska1, Rola Moussa2, Ljupcho Pejov1, Vlado Lazarov2, Biljana Pejova1
e-mail: merisokolovska@yahoo.com

1Institute of Chemistry, Faculty of Natural Sciences and...

127. SYNTHESIS, CHARACTERIZATION, AND ELECTROCATALYTIC PROPERTIES OF Pr1-xErxFeO3 (x = 0, 0.2, 0.4, or 1)

Sofija Popovska Blazhevska (Institute of Chemistry, Faculty of Natural Sciences and Mathematics, “Ss. Cyril and Methodius“ University in Skopje, N. Macedonia)

25/09/2026, 12:00

Physical, structural chemistry, spectroscopy and electrochemistry

E-poster

Lanthanide-based perovskites have attracted considerable attention due to their structural versatility and tunable physical and chemical properties, making them promising materials for catalytic and electrochemical applications.1
In this work, the results of synthesis, characterization, and detailed electrochemical investigations of complex perovskites with the general formula Pr1xErxFeO3 (x...

133. SYNTHESIS AND INVESTIGATION OF La1xErxMn0.5Fe0.5O3 (x = 0.2 and 0.4) COMPLEX PEROVSKITES

Ms Cvetanka Trajkovska (Institute of Chemistry, Faculty for Natural Sciences and Mathematics , University "Ss. Cyril and Methodius", Skopje, North Macedoina)

25/09/2026, 12:05

Physical, structural chemistry, spectroscopy and electrochemistry

E-poster

In recent decades, perovskite-type ceramic materials, with general formula ABO3, have attracted considerable attention due to their significant electrical, optical, magnetic and catalytic properties. Among them, mixed-cation perovskites containing two different lanthanide ions at the A-site and two transition-metal ions at the B-site have attracted particular attention because their structural...

169. Structural Dynamics of SsbA from Streptomyces coelicolor by Hydrogen-Deuterium Exchange Mass Spectrometry

Veronika Gijovska

25/09/2026, 12:10

Physical, structural chemistry, spectroscopy and electrochemistry

E-poster

Single-stranded DNA-binding proteins (SSBs) are essential for genome maintenance across all domains of life, protecting transiently exposed single-stranded DNA during replication, recombination, and repair. While the crystal structure and biophysical properties of SsbA from Streptomyces coelicolor have been characterized, direct information on its solution-phase conformational dynamics has...

3. Quantitative Evaluation of Nutritional and Safety-Relevant Elements in Sesame Seeds Using LIBS

Dr Marjetka Savić (Institute of Nuclear Sciences ''Vinča'', University of Belgrade, National Institute of the Republic of Serbia)

25/09/2026, 12:15

Physical, structural chemistry, spectroscopy and electrochemistry

E-poster

Laser-induced breakdown spectroscopy (LIBS) was employed to perform rapid multielemental analysis of sesame (Sesamum indicum L.) seeds, focusing on both nutritional and safety-relevant elements. Pressed sesame pellets were analyzed under optimized TEA CO2 laser conditions, while inductively coupled plasma–optical emission spectrometry (ICP–OES) measurements supported calibration and ensured...

6. Plasma Properties and Multielemental Profiling of Flax Seeds via TEA CO2 LIBS

Dragan Ranković (VINCA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Mike Alasa 12-14, 11001 Belgrade, Serbia)

25/09/2026, 12:20

Physical, structural chemistry, spectroscopy and electrochemistry

E-poster

Flax (Linum usitatissimum L.) seeds were studied to investigate their elemental composition and plasma characteristics, given their high oil and fiber content which creates a dense matrix affecting plasma formation and signal reproducibility. Laser-induced breakdown spectroscopy (LIBS) with a TEA CO₂ laser was applied to pressed flax seed pellets, while inductively coupled plasma–optical...

123. Synthesis and structural characterization of Pr1-xAxCoO3 type of perovskites, A = K and Ca

Behima Ademovski (Postgraduate student)

25/09/2026, 12:25

Inorganic chemistry and technology, inorganic materials and metallurgy

E-poster

Cobalt-based perovskites incorporating rare-earth elements at the A-site, partially substituted with alkali and alkaline-earth cations, have attracted considerable attention for their potential applications in solid oxide fuel cells and catalytic processes [1]. Among them, praseodymium-cobalt perovskites stand out as a particularly interesting class of materials, combining structural...

27. The Effect of Doping With Sm and Nd Iions on the Chemical, Physical, Structural and Optical Properties of Geopolymers

Dr Miloš Nenadović (Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Mike Petrović Alasa 12-14, Vinča, Belgrade, Serbia)

25/09/2026, 12:40

Inorganic chemistry and technology, inorganic materials and metallurgy

E-poster

The geopolymer obtained by the standard procedure of alkaline activation of metakaolin is doped with samarium (Sm) and neodymium (Nd) ions. The mass concentration of the dopant in both cases is 5%. After doping, the obtained materials were thermally treated at 600°C in a tube furnace in a stream of argon for 1 hour [1]. After cooling, the obtained materials were characterized using: Scanning...

49. Influence of samarium(III) oxide content on the physicochemical and thermal properties of metakaolin-based geopolymers

Dr Sanja Knežević (Department of Materials, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Mike Petrović Alasa 12-14, Vinča, Belgrade, Serbia)

25/09/2026, 12:45

Inorganic chemistry and technology, inorganic materials and metallurgy

E-poster

Aluminosilicate materials are widely recognized for their high mechanical strength, corrosion resistance, and thermal stability.1 In this study, metakaolin-based geopolymers were synthesized by alkali activation and doped with samarium(III) oxide (Sm2O3) in order to investigate its influence on their physicochemical and thermal properties. Two samples containing 1 wt% and 5 wt% Sm2O3 were...

94. Effect of Wood Ash Addition on the High-Temperature Performance of Alkali-Activated Fly Ash Materials

Dr Ljiljana Kljajević (Department of Materials, Vinča Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade)

25/09/2026, 12:50

Inorganic chemistry and technology, inorganic materials and metallurgy

E-poster

Alkali-activated fly ash-based materials have attracted considerable attention as sustainable alternative binders due to their ability to partially replace ordinary Portland cement while exhibiting favorable mechanical properties, durability, and resistance to aggressive environmental conditions. Furthermore, the investigation of alkali-activated materials at temperatures exceeding 1000 °C is...

93. STRUCTURAL AND MORPHOLOGICAL EVALUATION OF GEOPOLYMER–PA12 HYBRID COMPOSITES

Dr Jelena Gulicovski (Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia)

25/09/2026, 12:55

Inorganic chemistry and technology, inorganic materials and metallurgy

E-poster

This research addresses the synthesis and characterization of geopolymer–PA12 composites developed to enhance material performance. Two systems were developed: geopolymer–PA 2200 (GP_2200) and geopolymer–PA 3200 GF reinforced with glass beads (GP_3200 GF). Structural and morphological characterization was performed using XRD, FTIR, and SEM techniques. XRD confirmed the amorphous nature of the...

67. Effect of MgO on the luminescent properties of SiO2-B2O3-Eu2O3 sol-gel glasses

Hristo Lalkovski (Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences)

25/09/2026, 13:00

Inorganic chemistry and technology, inorganic materials and metallurgy

E-poster

The sol-gel method has a number of advantages over traditional high-temperature synthesis methods. The resulting materials exhibit high purity, homogeneity of nanosized particles, thermal stability, and chemical resistance. The advantages of the method are mainly expressed in the easy control over the structure and properties of the obtained glasses, as well as the low synthesis temperature....

139. CHARACTERIZATION OF HYDROGEN BLISTERING IN A LOW-CARBON STEEL STORAGE TANK

Prof. Dafinka Stoevska-Gogovska (Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University in Skopje, Republic of N. Macedonia)

25/09/2026, 13:05

Inorganic chemistry and technology, inorganic materials and metallurgy

E-poster

Hydrogen damage in the shape of blistering was noticed on the first shell course of a low-carbon steel atmospheric storage tank for petroleum products. The blisters were identified both on the internal and external surfaces of the plates, whereas no blistering was observed on the remaining shell courses. To investigate the influence of the blistering on the structural integrity of the tank...

85. APPLICATION OF STATISTICAL TOOLS FOR TREND ANALYSIS OF NON-CONFORMITIES: EXPERIENCE FROM ALKALOID AD SKOPJE

Biljana Dimovska (Alkaloid AD Skopje)

25/09/2026, 13:10

Quality, Regulatory Affairs and Industrial Management

E-poster

In the pharmaceutical industry, managing non-conformities is not only a regulatory requirement, but also essential for maintaining product quality and patient safety. As processes become more complex, there is a growing need to move from simple deviation tracking to a more structured and data-driven approach. Statistical tools play an important role in this transition by enabling better...

87. ROOT CAUSE ANALYSIS (RCA) AND CORRECTIVE ACTION/IMPROVEMENT ACTION (CAIA) AS KEY TOOLS IN MANAGEMENT OF NON-CONFORMITIES

Adrijana Nosacheva Trajkovska (Alkaloid AD Skopje)

25/09/2026, 13:15

Quality, Regulatory Affairs and Industrial Management

E-poster

The pharmaceutical industry operates under strict regulatory frameworks to ensure that medicinal products meet the highest standards of quality, safety, and efficacy of the products1. Effective management of non-conformities in the pharmaceutical industry is essential for ensuring product quality, patient safety, and regulatory compliance.
While reporting of any nonconformity is mandatory,...