Optimization of Magnetic Nanoparticles Synthesis for Biological Applications

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GHASEMI R.; Mirahmadi Zare Z.; NASR ESFAHANI M.H.; ALLAFCHIAN A.R.; BEHMANESH M.

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Journal: JOURNAL OF BIOTECHNOLOGY Year:2019 | Volume:10 | Issue:2 Page(s): 287-295

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Title

Optimization of Magnetic Nanoparticles Synthesis for Biological Applications

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Keywords

Magnetic Nanoparticles; Co-precipitation Method; Silica Coating; Aggregation; Dis� persionQ1

Abstract

In recent years, many studies have been performed on magnetic nanoparticles synthesis for use in various field of sciences. The design and synthesis of these nanoparticles have a direct impact on their physico-chemical properties and their applications, especially in the field of biological sciences. One of the simplest and most efficient methods for synthesis of magnetic nanoparticles is a chemical co-precipitation method, which is mainly associated with aggregation of nanoparticles. In this study, the synthesis of magnetic nanoparticles by co-precipitation method was performed in the presence of sodium hydroxide, ammonium hydroxide, and sodium citrate, and then coated with tetraethyl ortho-silicate. The size, surface charge, superparamagnetic properties, crystalline structure, and surface functional groups of nanoparticles were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), zeta potential, vibrating sample magnetometer (VSM), X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR). The results showed that the synthesis of magnetic nanoparticles in the presence of citrate or acidic acid and silica coating increase zeta potential of nanoparticles up to-70. 8 and-79. 2mV and leads to increase their stability and dispersion and prevents aggregation of magnetic nanoparticles without significant effect on their superparamagnetic properties.

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APA: Copy

GHASEMI, R., Mirahmadi Zare, Z., NASR ESFAHANI, M.H., ALLAFCHIAN, A.R., & BEHMANESH, M.. (2019). Optimization of Magnetic Nanoparticles Synthesis for Biological Applications. JOURNAL OF BIOTECHNOLOGY, 10(2 ), 287-295. SID. https://sid.ir/paper/231219/en

Vancouver: Copy

GHASEMI R., Mirahmadi Zare Z., NASR ESFAHANI M.H., ALLAFCHIAN A.R., BEHMANESH M.. Optimization of Magnetic Nanoparticles Synthesis for Biological Applications. JOURNAL OF BIOTECHNOLOGY[Internet]. 2019;10(2 ):287-295. Available from: https://sid.ir/paper/231219/en

IEEE: Copy

R. GHASEMI, Z. Mirahmadi Zare, M.H. NASR ESFAHANI, A.R. ALLAFCHIAN, and M. BEHMANESH, “Optimization of Magnetic Nanoparticles Synthesis for Biological Applications,” JOURNAL OF BIOTECHNOLOGY, vol. 10, no. 2 , pp. 287–295, 2019, [Online]. Available: https://sid.ir/paper/231219/en

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