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Synthesis of bioactive materials based on undoped/doped TiO2 and their nanocrystals with α- / β -cyclodextrins

C. LAZĂU1,* , P. SFÎRLOAGĂ1, C. RAŢIU1, C. ORHA1, A. IOITESCU1, I. MIRON1, Ş. NOVACONI1, D. I. HĂDĂRUGĂ2, N. G. HĂDĂRUGĂ3, G. N. BANDUR2, G. RUSU2, I. GROZESCU1

Affiliation

  1. National Institute for Research&Development in Electrochemistry and Condensed Matter, Timisoara, Plautius Andronescu 1, Romania
  2. “Politehnica” University of Timisoara, Faculty of Industrial Chemistry and Environmental Engineering, 300006-Timişoara, P-ta Victoriei 2, Romania
  3. Banat’s University of Agricultural Sciences and Veterinary Medicine of Timişoara, Faculty of Food Products Technology, 300645-Timişoara, Calea Aradului 119, Romania

Abstract

Bioactive compounds encapsulating for controlled protection and release is an actuality field, with involved in supramolecular chemistry, biochemistry, drugs products, cosmetics and food-processing fields. The controlled protection and release of bio-molecules represent a large and actuality field, with application, especially in drugs, cosmetics and foodprocessing industries. Cyclodextrins were the first studying compounds regarding to complexing behavior and catalytic properties, in order to copy the enzymes. In this paper it was achieved the synthesis of titanium dioxide undoped and doped with metallic ions, silver and iron, through sol-gel method, and also their complexation with α- / β-cyclodextrins through cocrystallization method. The obtained nanomaterials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX), thermogravimetry (TG) and Fourier transform infrared spectroscopy (FT-IR)..

Keywords

Titanium dioxide, Nanoparticles, Nanocrystals, Cyclodextrins, Bioactive materials, XRD, SEM, EDAX, TG, FT-IR.

Submitted at: May 10, 2009
Accepted at: July 23, 2009

Citation

C. LAZĂU, P. SFÎRLOAGĂ, C. RAŢIU, C. ORHA, A. IOITESCU, I. MIRON, Ş. NOVACONI, D. I. HĂDĂRUGĂ, N. G. HĂDĂRUGĂ, G. N. BANDUR, G. RUSU, I. GROZESCU, Synthesis of bioactive materials based on undoped/doped TiO2 and their nanocrystals with α- / β -cyclodextrins, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 7, pp. 981-987 (2009)