XXII. BIOCHEMICKÝ ZJAZD - Jesseniova lekárska fakulta

Posters
16.
SYNTHESIS AND SUrfaCE MODIFICATION OF ZINC OXIDE
naNOParTICLES
Michaela Šimšíková 1 and Marián Antalík 1,2
1
Department of Biochemistry, Faculty of Science, P.J. Safarik University, Kosice,
Slovak Republic; 2 Institute of Experimental Physics, SAS, Kosice, Slovak Republic
Zinc oxide nanostructures are very attractive for their unique properties and biocompatibility
and in consequence of this have great potencial for applications in biosystems,
for example biolabeling, biosensoring, delivery systems and others, which can be used
in genetics, pathology, criminology, safety of food and many other industries. For these
bioapplications are necessary surface modifications, for example with water soluble
thiols like stabilizating agents, which can made to the nanostructures to better suit their
integration with biological systems, leading to such interesting properties as enhanced
aqueous solubility, bio-recognition or applicability for biological systems..
For synthesis of ZnO nanoparticles in aqueous solution we used three different concentrations
of 11-mercapto-undecanoic acid MUA (0.1; 0.01 and 0.005 M) as stabilizing
agent. The coating of nanoparticles with MUA could allow their solubility in a variety of
organic solvent and the covalent binding through hydroxyl groups present in its structure.
The PL spectra indicated that the optical properties of ZnO nanoparticles were changed
with the insertion of MUA, and showed significant influence of this surface modification
on intensity.
Acknowledgements: This work was financially supported by the research grants VEGA
No. 0038, 7055, 0056; VVGS PF 12/2010/CH: Slovak Academy of Science in frame of CEX
NANOFLUID, projects ESF 26220120021 and NFP 26220220005.
XXII. Biochemistry Congress, Martin
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