ANTIMICROBIAL PROPERTIES OF TITANIUM NANOPARTICLES

Date

2007-06-15

Author

ERDURAL, B. K.
YURUM, A.
BAKIR, U.
Karakaş, Gürkan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

98
views

0
downloads

In the present study, nanostructured titania particles were synthesized using hydrothermal processing and their photocatalytic antimicrobial activities were characterized. Sol-gel synthesized TiO2 samples were treated with a two step hydrothermal treatment. The first stage treatment was the alkaline treatment with 10 M of NaOH for 48 h at 130 degrees C, followed with the second step which applied with distilled water for 48 h at 200 degrees C. Scanning Electron Microscope (SEM) images showed that alkaline treatment yields lamellar structure particles from the sol-gel synthesized anatase. Further treatment of nanoplates with distilled water results in crystal growth and the formation of nano structured thorn like particles. The photocatalytic antimicrobial activities of samples were determined against Escherichia coli under solar irradiation for 4 h. It was observed that the samples treated under alkaline conditions have higher antimicrobial activity than the untreated samples.

Subject Keywords

Titania, Nanostructured, Hydrothermal, Photocatalytic, Antimicrobial

URI

https://hdl.handle.net/11511/40221

DOI

https://doi.org/10.1007/978-1-4020-8903-9_40

Conference Name

NATO Advanced Study Institute on Functionalized Nanoscale Materials, Devices and Systems for Chem-Bio Sensors, Photonics and Energy Gereration and Storage

Collections

Department of Chemical Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Hydrothermal synthesis of nanostructured TiO2 particles and characterization of their photocatalytic antimicrobial activity ERDURAL, Beril K.; YÜRÜM, Alp; BAKIR, Ufuk; Karakaş, Gürkan (American Scientific Publishers, 2008-02-01) Nanostructured titania particles were synthesized by using hydrothermal processing and the photocatalytic antimicrobial activities were characterized. Both sol-gel synthesized and commercial TiO2 (anatase) samples were processed with two step hydrothermal treatments, under alkaline and neutral conditions. Scanning Electron Microscope (SEM) images showed that alkaline treatment yields nanofibers and lamellar structured particles from the commercial anatase and sol-gel synthesized samples respectively. Furthe...
Synthesis and characterization of polythiophene/montmorillonite and polythiophene/polypropylene composites Dülgerbaki, Çiğdem; Küçükyavuz, Zuhal; Department of Chemistry (2006) In this study, polythiophene(PTP)/montmorillonite(MMT) nanocomposites were synthesized by in situ intercalative polymerization and chemical oxidative polymerization. In in situ intercalative polymerization method, composites containing 90 and 95% MMT were prepared. In chemical oxidative polymerization method, a series of composites ranging from 1 to 15% by weight MMT were synthesized. Thermal and morphological properties of samples were investigated by Differential Scanning Calorimeter (DSC), Thermal Gravim...
Antimicrobial spectrum determination of the K5 type yeast killer protein and its kinetics of cell killing Türel, Akif Emre; İzgü, Kadri Fatih; Department of Biology (2005) Some yeast strains under certain conditions secrete into the medium polypeptide toxins which are inhibitory to sensitive cells. These yeast strains are termed as killer yeasts and their toxins are designated as killer proteins or killer toxins. Killer proteins are classified into 11 typical types (K1-K11). These toxins have different killing mechanisms on sensitive cells. Some of them hydrolyze major cell wall component β-1,3- glucans. As mammalian cells lack cell walls research and development of novel hig...
Effect of substrate type on structural and optical properties of metal nanoparticles for plasmonic applications Tanyeli, İrem; Turan, Raşit; Bek, Alpan; Department of Physics (2011) In this work, the structural and optical properties of metal nanoparticles fabricated on various substrates have been investigated. The particles were fabricated by electron beam lithography (EBL) and dewetting of a thin metal film. The advantages and disadvantages of these two fabrication techniques are discussed by considering the properties of the nanoparticles and the applicability to large area substrates. Being a practical fabrication method, dewetting can be applied to any substrate with either small...
Production and structural characterization of iron-boron nanoalloys Fadaie, Amir; Mekhrabov, Amdulla O.; Akdeniz, Mahmut Vedat; Department of Metallurgical and Materials Engineering (2014) The purpose of this study was production and structural characterization of Fe-B crystalline /amorphous nanocomposite powders. In the theoretical part of the study, detailed nanoscale structures of Fe80B20 and Fe85B15 metallic glasses were investigated using Molecular Dynamics (MD) method as well as several structural analysis tools. In the experimental part of the study, Fe80B20 and Fe85B15 crystalline /amorphous nanocomposite powders have been synthesized by using surfactant-assisted high-energy ball mill...

Citation Formats

B. K. ERDURAL, A. YURUM, U. BAKIR, and G. Karakaş, “ANTIMICROBIAL PROPERTIES OF TITANIUM NANOPARTICLES,” presented at the NATO Advanced Study Institute on Functionalized Nanoscale Materials, Devices and Systems for Chem-Bio Sensors, Photonics and Energy Gereration and Storage, Sinaia, ROMANIA, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40221.