The Effect of Ultrasonication on the Size and Morphology of Iron Oxide - Chitosan Nano and Microparticles

Akin, Deniz
Gündüz, Ufuk
The aim of this study is to synthesize magnetic Fe3O4-chitosan nano and microparticles (Fe3O4-CPs) by suspension cross-linking and ionic gelation methods and investigate the effect of ultrasonication on the size, morphology and magnetic properties. The synthesized particles were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS) and vibrating sample magnetometry (VSM). The results showed that the ultrasonication decreased the mean particle diameter and enhanced magnetic properties of Fe3O4-CPs due to the Fe3O4 content.


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Kaynak, Cevdet (2014-04-01)
The purpose of this study is to investigate effects of oxidative functionalized and aminosilanized carbon nanotubes on the (1) isothermal and (2) non-isothermal crystallization kinetics of polyamide-6 by DSC analyses, and (3) crystal structure of injection molded specimens by XRD analyses. Nanocomposites were compounded by using melt mixing technique via twin screw extrusion. Due to basically very effective heterogeneous nucleation effect, both increasing amount and surface functionalization of carbon nanot...
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Direct evidence of advantage of using nanosized zeolite Beta for ISFET-based biosensor construction
Soy, Esin; Galioglu, Sezin; Soldatkin, Oleksandr O.; Dzyadevych, Sergei V.; Warzywoda, Juliusz; Sacco, Albert; Akata Kurç, Burcu (2013-05-01)
Analytical characteristics of urease- and butyrylcholinesterase (BuChE)-based ion sensitive field-effect transistor (ISFET) biosensors were investigated by the incorporation of zeolite Beta nanoparticles with varying Si/Al ratios. The results obtained by the zeolite-modified ISFET transducers suggested that the Si/Al ratio strongly influenced the biosensor performances due to the electrostatic interactions among enzyme, substrate, and zeolite surface as well as the nature of the enzymatic reaction. Using re...
Magnetic Fe3O4-chitosan micro- and nanoparticles for wastewater treatment
ŞAHBAZ, DENİZ AKIN; YAKAR, ARZU; Gündüz, Ufuk (2019-08-18)
In this study, first, magnetic nanoparticles (MNP) were synthesized using a coprecipitation method and the synthesized particles were characterized using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), dynamic light scattering (DLS), and vibrating sample magnetometry (VSM). According to DLS and VSM analyses results, it was seen that the size of the MNP was smaller than 10 nm and they exhibited superparamagnetic properties, respectively. Then, magnetic Fe3O4-chitosan micro/n...
Citation Formats
D. Akin, A. YAKAR, and U. Gündüz, “The Effect of Ultrasonication on the Size and Morphology of Iron Oxide - Chitosan Nano and Microparticles,” 2013, vol. 1569, Accessed: 00, 2020. [Online]. Available: