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Phytosynthesis of Au and Au/ZrO₂ bi-Phasic System Nanoparticles with Evaluation of Their Colloidal Stability.
J Nanosci Nanotechnol 2019; 19(5):2807-2813JN

Abstract

Due to its easy availability, preparation, handling and non-toxic nature, Equisetum arvense horsetail extract was chosen as a reducing, stabilizing and functionalizing agent for Au and bi-phasic Au/ZrO₂ nanoparticle phytosynthesis-inorganic nanoparticle synthesis mediated by plant extract. We studied Au and bi-phasic Au/ZrO₂ nanoparticles in colloids by various physical-chemical and analytical methods over 5 weeks. Dynamic Light Scattering and Scanning Transmission Electron Microscopy compared core and hydrodynamic diameters of nanoparticles. ζ-potential measurement indirectly determined nanoparticles stability in liquid medium. Ultraviolet-Visible Spectroscopy characterized basic absorbance maxima for both Au and the bi-phasic Au/ZrO₂ system. Finally, total metal concentration was determined using Inductively Coupled Plasma Mass Spectrometry. ζ-potential measurements proved satisfactory stability of both Au (-13.4 to -17 mV) and Au/ZrO₂ nanoparticles (-14.1 to -17.5 mV) over the experimental period. Scanning Transmission Electron Microscopy with Selected Area Diffraction analysis confirmed nanoparticles crystalline nature, and we determined 24 nm and 40 nm core nanogold diameters in Au and Au/ZrO₂ nanoparticle colloids. Dynamic light scattering analysis confirmed the dichotomy between particle sizes in liquid medium in the hundreds of nanometers measured, and long-term measurements confirmed reasonable colloid stability-a paramount parameter for potential nanoparticles applications; especially in heterogeneous catalysis.

Authors+Show Affiliations

Nanotechnology Centre, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava 70833, Czech Republic.Nanotechnology Centre, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava 70833, Czech Republic.Nanotechnology Centre, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava 70833, Czech Republic.Department of Soil Science and Geology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia.Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, 6-6-11-606 Aoba, Aramaki, Aoba-ku, 980-8579 Sendai, Japan.Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, 6-6-11-606 Aoba, Aramaki, Aoba-ku, 980-8579 Sendai, Japan.Nanotechnology Centre, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava 70833, Czech Republic.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30501784

Citation

Holišová, Veronika, et al. "Phytosynthesis of Au and Au/ZrO₂ bi-Phasic System Nanoparticles With Evaluation of Their Colloidal Stability." Journal of Nanoscience and Nanotechnology, vol. 19, no. 5, 2019, pp. 2807-2813.
Holišová V, Konvičcková Z, Kratošová G, et al. Phytosynthesis of Au and Au/ZrO₂ bi-Phasic System Nanoparticles with Evaluation of Their Colloidal Stability. J Nanosci Nanotechnol. 2019;19(5):2807-2813.
Holišová, V., Konvičcková, Z., Kratošová, G., Kolenčcík, M., Niide, T., Umetsu, M., & Plachá, D. (2019). Phytosynthesis of Au and Au/ZrO₂ bi-Phasic System Nanoparticles with Evaluation of Their Colloidal Stability. Journal of Nanoscience and Nanotechnology, 19(5), pp. 2807-2813. doi:10.1166/jnn.2019.15851.
Holišová V, et al. Phytosynthesis of Au and Au/ZrO₂ bi-Phasic System Nanoparticles With Evaluation of Their Colloidal Stability. J Nanosci Nanotechnol. 2019 May 1;19(5):2807-2813. PubMed PMID: 30501784.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phytosynthesis of Au and Au/ZrO₂ bi-Phasic System Nanoparticles with Evaluation of Their Colloidal Stability. AU - Holišová,Veronika, AU - Konvičcková,Zuzana, AU - Kratošová,Gabriela, AU - Kolenčcík,Marek, AU - Niide,Teppei, AU - Umetsu,Mitsuo, AU - Plachá,Daniela, PY - 2018/12/4/entrez PY - 2018/12/7/pubmed PY - 2018/12/7/medline SP - 2807 EP - 2813 JF - Journal of nanoscience and nanotechnology JO - J Nanosci Nanotechnol VL - 19 IS - 5 N2 - Due to its easy availability, preparation, handling and non-toxic nature, Equisetum arvense horsetail extract was chosen as a reducing, stabilizing and functionalizing agent for Au and bi-phasic Au/ZrO₂ nanoparticle phytosynthesis-inorganic nanoparticle synthesis mediated by plant extract. We studied Au and bi-phasic Au/ZrO₂ nanoparticles in colloids by various physical-chemical and analytical methods over 5 weeks. Dynamic Light Scattering and Scanning Transmission Electron Microscopy compared core and hydrodynamic diameters of nanoparticles. ζ-potential measurement indirectly determined nanoparticles stability in liquid medium. Ultraviolet-Visible Spectroscopy characterized basic absorbance maxima for both Au and the bi-phasic Au/ZrO₂ system. Finally, total metal concentration was determined using Inductively Coupled Plasma Mass Spectrometry. ζ-potential measurements proved satisfactory stability of both Au (-13.4 to -17 mV) and Au/ZrO₂ nanoparticles (-14.1 to -17.5 mV) over the experimental period. Scanning Transmission Electron Microscopy with Selected Area Diffraction analysis confirmed nanoparticles crystalline nature, and we determined 24 nm and 40 nm core nanogold diameters in Au and Au/ZrO₂ nanoparticle colloids. Dynamic light scattering analysis confirmed the dichotomy between particle sizes in liquid medium in the hundreds of nanometers measured, and long-term measurements confirmed reasonable colloid stability-a paramount parameter for potential nanoparticles applications; especially in heterogeneous catalysis. SN - 1533-4880 UR - https://www.unboundmedicine.com/medline/citation/30501784/Phytosynthesis_of_Au_and_Au/ZrO₂_bi-Phasic_System_Nanoparticles_with_Evaluation_of_Their_Colloidal_Stability L2 - https://www.ingentaconnect.com/openurl?genre=article&issn=1533-4880&volume=19&issue=5&spage=2807&aulast=Holišová DB - PRIME DP - Unbound Medicine ER -