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MTuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: agnetic and Cytotoxicity Properties of La12xSrxMnO3 (0 £ x £ 0.5) Nanoparticles Prepared by a Simple | Nanoscale Res Lett 2009 4 839-845 DOI 10.1007 S11671-009-9322-X NANO EXPRESS Magnetic and Cytotoxicity Properties of La1_xSrxMnO3 0 x 0.5 Nanoparticles Prepared by a Simple Thermal Hydro-Decomposition Sujittra Daengsakul Chunpen Thomas Ian Thomas Charusporn Mongkolkachit Sineenat Siri Vittaya Amornkitbamrung Santi Maensiri Received 23 December 2008 Accepted 14 April 2009 Published online 9 May 2009 to the authors 2009 Abstract This study reports the magnetic and cytotoxicity properties of magnetic nanoparticles of La1-xSrx MnO3 LSMO with x 0 0.1 0.2 0.3 0.4 and 0.5 by a simple thermal decomposition method by using acetate salts of La Sr and Mn as starting materials in aqueous solution. To obtain the LSMO nanoparticles thermal decomposition of the precursor was carried out at the temperatures of 600 700 800 and 900 C for 6 h. The synthesized LSMO nanoparticles were characterized by XRD FT-IR TEM and SEM. Structural characterization shows that the prepared particles consist of two phases of LaMnO3 LMO and LSMO with crystallite sizes ranging from 20 nm to 87 nm. All the prepared samples have a perovskite structure with transformation from cubic to rhombohedral at thermal decomposition temperature higher than 900 C in LSMO samples of x 0.3. Basic magnetic characteristics such as saturated magnetization MS and coercive field HC were evaluated by vibrating S. Daengsakul C. Thomas I. Thomas V. Amornkitbamrung S. Maensiri El Department of Physics Faculty of Science Khon Kaen University Khon Kaen 40002 Thailand e-mail sanmae@kku.ac.th santimaensiri@gmail.com S. Daengsakul C. Thomas I. Thomas S. Siri V. Amornkitbamrung S. Maensiri Integrated Nanotechnology Research Center INRC Khon Kaen University Khon Kaen 40002 Thailand C. Mongkolkachit National Metal and Materials Technology Center MTEC 114 Thailand Science Park Paholyothin Klong Luang Pathumthan 12120 Thailand S. Siri Department of Biochemistry Faculty of Science Khon Kaen University Khon Kaen 40002 Thailand sample .
