Impact of Laser Energy on Synthesis of Iron Oxide Nano-particles in Liquid Medium

Alemu Kebede, Ashok V. Gholap, Awadhesh K. Rai

.

DOI: 10.4236/wjnse.2011.14014                

Abstract

We present echofriendly laser ablation technique of Synthesizing iron oxide nanoparticle in pure water and discuss the impact of laser energy on the size, shape and morphology of the nanoparticle. The synthesized nanoparticle was characterized by UV/Visible absorption spectroscopy and morphological study was performed by scanning electron microscope (SEM). Intensity and wave length of the absorption peak of the colloidal nanoparticle prepared in water are dependent on the laser energy. Red-shift in the absorption band was observed at increasing laser energy. The intensity of absorption peak also changed when ablating laser energy was increased. The spherical natures of the nanoparticle is lost as the laser energy gradually increases and finally triangular shaped structures is observed as the laser energy increases from 9.3 mJ to 75 mJ.

Keywords

Laser, Ablation, SEM, UV/Visible, Nanoparticle, Iron Oxide

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR), “The Appropriateness of Existing Methodologies to Assess the Potential Risks Associated with Engineered and Adventitious Products of Nanotechnologies,” SCENIHR, 2006, p. 13.
[2]	P. L. Apopa, Y. Qian, R. Shao, L. N. Guo, Diane Schwegler-Berry, M. Pacurari, D. Porter, X. L. Shi, V. Vallyathan, V. Castranova and C. D. Flynn, “Iron Oxide Nanoparticles Induce Human Microvascular Endothelial Cell Permeability through Reactive Oxygen Speceous Production and Microtubule Remodeling,” Particle and Fibre Toxicology, Vol. 6, 2009, p. 1. doi:10.1186/1743-8977-6-1
[3]	K.-C. Huang and K.-S. Chou, “Microstructure Changes to Iron Nanoparticles during Discharge/Charge Cycles,” Electrochemistry Communications, Vol. 9, 2007, pp. 1907-1912. doi:10.1016/j.elecom.2007.05.001
[4]	H.-Y. Huang, Y.-T. Shieh, C.-M. Shieh and Y.-K. Twu, “Magnetic Chitosan/Iron (II, III) Oxide Nanoparticles Prepared by Spray-Drying,” Carbohydrate Polymers, Vol. 81, No. 4, 2010, pp. 906-910. doi:10.1016/j.carbpol.2010.04.003
[5]	R. Singh, R. Verma, A. Kaushik, G. Sumana, S. Sood, R. K. Gupta and B. D. Malhotra, “Chitosan-Iron Oxide Nano-Composite Platform for Mismatch-Discriminating DNA Hybridization for Neisseria gonorrhoeae Detection Causing Sexually Transmitted Disease,” Biosenceors and Bioelectronics, Vol. 26, No. 6, 2011, pp. 2967-2974.
[6]	R. Sarkar, P. Pal, M. Mahato, T. Kamilya, A. Chaudhuri and G. B. Talapatra “On the Origin of Iron-Oxide Nanoparticle Formation Using Phospholipid Membrane Template,” Colloids and Surface B: Biointerface, Vol. 79, No. 12, 2010, pp. 384-389. doi:10.1016/j.colsurfb.2010.04.023
[7]	S. Laurent, D. Forge, M. Port, A. Roch, C. Robic, L. Vander Elst and N. Muller, “Magnetic Iron Oxide Nanoparticles: Synthesis, Stabilization, Vectorization Physicochemical Characterizations, and Biological Applications,” Chemical Reviews, Vol. 108, No. 6, 2008, pp. 2064-2008. doi:10.1021/cr068445e
[8]	A. K. Singh, A. K. Rai and D. Bicanic, “Controlled Synthesis and Optical Properties of Pure Gold Nanoparticles,” Instrumentation Science and Technology, Vol. 37, No. 1, 2009, pp. 50-60.
[9]	J. Perreire, E. Millon and E. Fogarassay (Eds.), “Recent Advances in Laser Processing of Materials,” Elsevier, London, 2006.
[10]	P. G. Tratnyek, V. Sarathy and J. T. Nurmi, “Aging of Iron Nanoparticles in Water: Effects on Structure and Reactivity,” Division of Environmental and Biomolecular Systems, Oregon Health and Science University, Portland, 2009.