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Report Summarizes Materials Science Study Findings from Swiss Federal Institute of Technology (Hybrid Wood Materials with Magnetic Anisotropy...

August 5, 2014



Report Summarizes Materials Science Study Findings from Swiss Federal Institute of Technology (Hybrid Wood Materials with Magnetic Anisotropy Dictated by the Hierarchical Cell Structure)

By a News Reporter-Staff News Editor at Journal of Technology -- Fresh data on Materials Science are presented in a new report. According to news originating from Zurich, Switzerland, by VerticalNews correspondents, research stated, "Anisotropic and hierarchical structures are bound in nature and highly desired in engineered materials, due to their outstanding functions and performance. Mimicking such natural features with synthetic materials and methods has been a highly active area of research in the last decades."

Our news journalists obtained a quote from the research from the Swiss Federal Institute of Technology, "Unlike these methods, we use the native biomaterial wood, with its intrinsic anisotropy and hierarchy as a directional scaffold for the incorporation of magnetic nanoparticles inside the wood material. Nanocrystalline iron oxide particles were synthesized in situ via coprecipitation of ferric and ferrous ions within the interconnected pore network of bulk wood. Imaging with low-vacuum and cryogenic electron microscopy as well as spectral Raman mapping revealed layered nanosize particles firmly attached to the inner surface of the wood cell walls. The mineralogy of iron oxide was identified by XRD powder diffraction and Raman spectroscopy as a mixture of the spinel phases magnetite and maghemite. The intrinsic structural architecture of native wood entails a three-dimensional assembly of the colloidal iron oxide which results in direction-dependent magnetic features of the wood-mineral hybrid material."

According to the news editors, the research concluded: "This superinduced magnetic anisotropy, as quantified by direction-dependent magnetic hysteresis loops and low-field susceptibility tensors, allows for directional lift, drag, alignment, (re)orientation, and actuation, and opens up novel applications of the natural resource wood."

For more information on this research see: Hybrid Wood Materials with Magnetic Anisotropy Dictated by the Hierarchical Cell Structure. ACS Applied Materials & Interfaces, 2014;6(12):9760-9767. ACS Applied Materials & Interfaces can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; ACS Applied Materials & Interfaces - www.pubs.acs.org/journal/aamick)

The news correspondents report that additional information may be obtained from V. Merk, ETH, Inst Geophys Earth & Planetary Magnetism, CH-8092 Zurich, Switzerland. Additional authors for this research include M. Chanana, N. Gierlinger, A.M. Hirt and I. Burgert.

Keywords for this news article include: Zurich, Europe, Switzerland, Materials Science

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Source: Journal of Technology


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