1. Nina Babic,
Republic of Srpska, Bosnia and Herzegovina
2. Dragana Zabic, Republic of Srpska, Bosnia and Herzegovina
3. Zorica Jerkic, Republic of Srpska, Bosnia and Herzegovina
4. Stefan Cetic, Republic of Srpska, Bosnia and Herzegovina
5. Dragana Gajic, Republic of Srpska, Bosnia and Herzegovina
6. Dijana Jelić, Medicinski fakultet Banja Luka , Republic of Srpska, Bosnia and Herzegovina
Abstract: Four students of Chemistry Department, Faculty of Natural Sciences and Mathematics, University of Banja Luka were involved in national research project ”Phytosynthesis, characterization and biomedical application of metallic (Ag, Si, Cu) and oxide (ZnO, TiO2, CuO, Fe2O3) nanoparticles: microbiology, biokinetics and toxicology aspect” led by their professors. Students role was to independently synthesize metallic oxides: ZnO, TiO2, CuO, Fe2O3 using green chemistry approach and to evaluate metallic oxides physicochemical properties. All the metallic oxide sample were phytosynthesized using methanolic extract of flowers of Geranium robertianum L. (Geraniaceae). For characterization students used UV/VIS spectrophotometry, infrared spectroscopy and optical microscope. Additionaly, students evaluated photocatalytic properties of obtained samples, as well as, antimicrobial activity. All the samples were in nanorange, ZnO (530 nm), TiO2 (460 nm), CuO (710 nm), Fe2O3 (980 nm), showed good antimicrobial properties against gramm negative (E.coli) and gramm positive (S. Aureus) bacteria with average MIC value 0.312 mg/mL for S. Aureus and 0.156 mg/mL for E. coli. Photocatalytical efficiency was between 77 - 96% depending on the metallic oxide. The main focus of students involvement in research project was giving importance to scientific work and students’ empowering in scientific research.
Authors are thankful to the Ministry for Scientific and Technological Development, Higher Education and Information Society of Republic of Srpska for supporting the study through the project No. 19/6-020/961-74/18.
Key wordstestttt :
SIMPOZIJUM B - Biomaterijali i nanomedicina