Alexandru Ioan Cuza University – TechConnect Briefs

Green Fenton-like catalysts for the removal of water pollutants

Nadejde C., Neamtu M., Hodoroaba V.-D., Schneider R.J., Paul A., Ababei G., Panne U., Alexandru Ioan Cuza University, RO

Three tannic acid (TA) and dissolved natural organic matter (NOM) core-shell magnetite nanoparticles catalysts were evaluated as magnetic heterogeneous catalysts. Simple and efficient procedures for the preparation of coated magnetic nanoparticles were employed. The catalysts [...]

Co0.5Fe2.5O4 nanoparticle biological impact – comparative study on environmental cellulolytic fungi

Oprica L., Andries M., Nadejde C., Creanga D., Alexandru Ioan Cuza University, RO

Cobalt ferrite magnetic nanoparticles (MNPs) were prepared by co-precipitation being further electrostatically stabilized in solution (particularly used in experimental cancer treatment through hyperthermia). We focused on the biological impact of MNPs following their release in [...]

Colloidal magnetite nanoparticles– cytotoxicity study on V79 lung fibroblast cells

Mihai C.T., Puscasu E., Secarescu L., Nadejde C., Gherghel D., Creanga D., Vochita G., Alexandru Ioan Cuza University, RO

Various bioeffects of nanoparticulate matter were reported in the last decades. Herein, we present colloidal magnetic nanoparticles (MNPs), yielded by chemical route, tested for cytotoxicty with focus on cell apoptosis and DNA fragmentation. Chinese hamster [...]

Characterization of RF-sputtered ultra-thin WO3 films grown on TiO2 surface

Dobromir M., Manole A., Apetrei R., Luca D., Alexandru Ioan Cuza University, RO

We report on TiO2 and WO3/TiO2 bilayers thin films grown on amorphous and crystalline substrates, at room temperature by plasma-assisted sputtering. TiO2/WO3 ceramic targets were used in an RF magnetron discharge running in an Ar [...]

Fabrication and characterization of nano-structured ferromagnetic Ti1-xFexO2 thin films

Apetrei R., Negrila C., Macovei D., Dascaleanu V., Teodorescu C.-M., Luca D., Alexandru Ioan Cuza University, RO

Ti1-xFexO2, 300 nm thin films with x ranging between 0.0 and 0.6, have been fabricated by RF magnetron sputtering. Specimen characterization was done by XPS, AFM, XRD,UV-Vis spectrometry, MOKE, and XANES/EXAFS techniques. The AFM and [...]