Single Step Synthesis of Amino-Functionalized Magnetic Nanoparticles with Polyol Technique at Low Temperature. (26th June 2011)

• Record Type: Journal Article
• Authors: Songvorawit, Nut; Tuitemwong, Kooranee; Tuitemwong, Pravate
• Other Names: Tan B. Academic Editor.
• Is Part Of: ISRN nanotechnology. Volume 2011(2011)
• Publication Date: 2011-06-26
• Subjects: Nanotechnology -- Periodicals; Nanotechnology; Nanotechnology; Electronic journals; Periodicals; Electronic journals; 620.5
• DOI: 10.5402/2011/483129
• Languages: English
• ISSNs: 2090-6064

Abstract

Abstract : The synthesis and characterization of amino-functionalized magnetic nanoparticles (amino-MNPs) were carried out. Amino-MNPs were prepared using polyol technique in an autoclave (121 ∘ C) without inert gas. The characterization of particles employed conventional SEM-EDS, TEM, XRD, FTIR, and VSM techniques. Results showed that amount of NaOH affected to the speed of MNP formation. The desirable uniform cubic shape of amino-MNPs was obtained from the addition of 2.50% w/v NaOH for 3 reaction cycles (2 hours/cycle). The amino-MNPs obtained from this condition have cubic shapes with the average size of 43 ± 9 nm. Results from elemental and structure analyses confirmed that the product was pure magnetite. The magnetic properties were ferromagnetism and were very close to a complete superparamagnetism. Fourier transform infrared (FT-IR) spectrum showed that the amino group existed on particle surface. The amino-MNPs of cubic shape were synthesized with facile single step at low temperature, and they have potential to be used for rapid microbial detection and many biological applications.