1. PHOTOCATALYTIC ACTIVITY OF HIGHLY POROUS TiO2-AG MATERIALS . Authors: SIMION SIMON, LUCIAN BAIA, GEORGIAN MELINTE, VIRGINIA DANCIU, CARMEN IOANA FORT, MONICA BAIA, ZSOLT PAP, DUMITRU GEORGESCU.2. ADSORPTION OF HORSE METHEMOGLOBIN ON BIOACTIVE GLASS AT HIGH SALT CONCENTRATION, STUDIED BY EPR AND FTIR SPECTROSCOPY. Authors: SIMION SIMON, HEINZ-JÜRGEN STEINHOFF, CRISTINA GRUIAN.3. THE INFLUENCE OF SOME SYNTHESIS CONDITIONS ON THE STRUCTURE OF CALCIUM PHOSPHATE POWDERS. Authors: CATALIN POPA, SIMION SIMON, MONICA TĂMĂȘAN, TEODORA MARCU, MILICA TODEA.4. UV ABSORPTION PROPERTIES OF DOPED PVA TiO2 MEMBRANES . Authors: SIMION SIMON, TRAIAN ŞTEFAN, MIHAELA POP, CORNEL VIOREL POP, LUCIANA UDRESCU, MIHAI TODICA.