@article {NaszalyiNagy2015,
	title = {Inherently fluorescent and porous zirconia colloids: preparation, characterization and drug adsorption studies},
	journal = {J. Mater. Chem. B},
	volume = {3},
	number = {38},
	year = {2015},
	pages = {7529{\textendash}7537},
	abstract = {Porous, fluorescent zirconia particles of nearly 380 nm diameter were prepared without template molecules or labeling dyes. The porous structure is the result of aggregation-induced particle formation. The inherent fluorescence is assigned to coordinatively unsaturated Zr4+ ions at the sol{\textendash}{}gel derived ZrO2 surface. After physico-chemical characterization of the native zirconia particles carboxyl and/or amine bearing drug molecules (D,L-\ensuremath{\alpha}-difluoromethylornithine {\textendash}{} DFMO, ursolic acid {\textendash}{} UA and doxorubicin {\textendash}{} DOX) were adsorbed onto their surface, and the products were analyzed with Fourier-transform infrared spectroscopy (FTIR), thermogravimetry (TG), small-angle X-ray scattering (SAXS), fluorimetry and zeta potential vs. pH measurements. We have found that DOX complexes coordinatively unsaturated Zr4+ ions without dislocating them, while carboxyl-bearing drugs interact with basic surface Zr{\textendash}{}OH sites eliminating some of the carbonate species. The adsorption of UA at the zirconia surface shifts considerably the isoelectric point of the surface and thus provides kinetic stability to the particles at physiological pH. An in vivo biodistribution study in two healthy dogs performed by SPECT/CT detection after 99mTc labeling of the nanocarriers has shown the possibility of drug delivery application.},
	keywords = {peer-reviewed},
	issn = {2050-750X, 2050-7518},
	doi = {10.1039/C5TB00832H},
	author = {Nasz{\'a}lyi Nagy, L{\'\i}via and Mih{\'a}ly, Judith and Poly{\'a}k, Andr{\'a}s and Debreczeni, Bal{\'a}zs and Cs{\'a}sz{\'a}r, Barbara and Szigy{\'a}rt{\'o}, Imola Csilla and Andr{\'a}s Wacha and Cz{\'e}g{\'e}ny, Zsuzsanna and Jakab, Emma and Kl{\'e}bert, Szilvia and Drot{\'a}r, Eszter and Dabasi, G and B{\'o}ta, Attila and Balogh, Lajos and Kiss, {\'E}va}
}
@article {129,
	title = {Vanadium dispersion and catalytic activity of Pd/VOx/SBA-15 catalysts in the Wacker oxidation of ethylene},
	journal = {Microporous and Mesoporous Materials},
	volume = {207},
	year = {2015},
	month = {2015/05/01/},
	pages = {1 - 8},
	abstract = {Transmission electron microscopy (TEM), X-ray diffractometry (XRD), in situ diffuse reflectance ultra violet {\textendash} visible (UV{\textendash}Vis) spectroscopy, and temperature-programmed reduction by hydrogen (H2-TPR) were used to identify the vanadia forms in vanadium-containing SBA-15 preparations (VOx/SBA-15). Wacker type supported Pd/VOx/SBA-15 catalysts were obtained by introducing Pd into VOx/SBA-15 samples using conventional impregnation method. The activity of the catalysts was tested in the gas phase partial oxidation of ethylene by O2 in the presence of H2O (Wacker oxidation). VOx/SBA-15 sample was obtained by micelle-templated synthesis using vanadium-containing synthesis gel. The vanadium became incorporated in the silica structure from the gel in near to atomic dispersion. This catalyst was quite active in ethylene oxidation to CO2 but had low Wacker activity. Isolated, polymeric and bulk vanadia species were identified in the VOx/SBA-15 prepared by wet impregnation/calcination method. The specific surface area of the sample was found to be smaller than that of the neat SBA-15 support because some pores were blocked by vanadia agglomerates. The corresponding Pd/VOx/SBA-15 catalyst showed high selectivity for acetaldehyde formation but the activity was relatively low due to low accessible active surface. A third VOx/SBA-15 sample was obtained by applying directed surface reaction between silanol groups of dehydrated SBA-15 and anhydrous solution of vanadyl acetylacetonate. Large number of accessible Pd/VOx sites were present in the corresponding Pd/VOx/SBA-15 catalyst. Latter catalyst induced ethylene oxidation to acetaldehyde with high yield at temperatures <=160~{\textdegree}C and with good yield to acetic acid at temperatures >=160~{\textdegree}C.},
	keywords = {H2-TPR, Pd/V catalysts, SBA-15, UV{\textendash}Vis, Wacker oxidation},
	isbn = {1387-1811},
	url = {http://www.sciencedirect.com/science/article/pii/S1387181115000050},
	author = {Barthos, R{\'o}bert and Hegyessy, Andr{\'a}s and Kl{\'e}bert, Szilvia and Valyon, J{\'o}zsef}
}
