News Column

New Nanoparticles Study Findings Have Been Reported by R.J. Fullerton and Colleagues

May 16, 2014



By a News Reporter-Staff News Editor at Science Letter -- New research on Nanoparticles is the subject of a report. According to news originating from Belcamp, Maryland, by NewsRx correspondents, research stated, "We describe a novel approach for coupling pristine graphene with superparamagnetic iron oxide nanoparticles to create dispersed, magnetically responsive hybrids. The magnetic iron oxide (Fe3O4) nanoparticles are synthesized by a co-precipitation method using ferric (Fe3+) and ferrous (Fe2+) salts and then grafted with polyvinylpyrrolidone (PVP)."

Our news journalists obtained a quote from the research, "These PVP-grafted Fe3O4 nanoparticles are then used to stabilize colloidal graphene in water. The PVP branches non-covalently attach to the surface of the pristine graphene sheets without functionalization or defect creation. These Fe3O4-graphene hybrids are stable against aggregation and are highly responsive to external magnetic fields. These hybrids can be freeze-dried to a powder or magnetically separated from solution and still easily redisperse while retaining magnetic functionality. At all stages of synthesis, the Fe3O4-graphene hybrids display no coercivity after being brought to magnetic saturation, confirming superparamagnetic properties. Microscopy and light scattering data confirm the presence of pristine graphene sheets decorated with Fe3O4 nanoparticles."

According to the news editors, the research concluded: "These materials show promise for multifunctional polymer composites as well as biomedical applications and environmental remediation."

For more information on this research see: Graphene non-covalently tethered with magnetic nanoparticles. Carbon, 2014;72():192-199. Carbon can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Carbon - www.elsevier.com/wps/product/cws_home/258)

The news correspondents report that additional information may be obtained from R.J. Fullerton, Bowhead Sci & Technol, Belcamp, MD, United States. Additional authors for this research include D.P. Cole, K.D. Behler, S. Das, F. Irin, D. Parviz, M.N.F. Hoque, Z.Y. Fan and M.J. Green (see also Nanoparticles).

Keywords for this news article include: Belcamp, Maryland, United States, Nanotechnology, Emerging Technologies, Magnetic Nanoparticles, North and Central America

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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