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Researchers from University of Sassari Discuss Findings in Advanced Material Research (3D Spatially Controlled Chemical Functionalization on Alumina...

August 5, 2014

Researchers from University of Sassari Discuss Findings in Advanced Material Research (3D Spatially Controlled Chemical Functionalization on Alumina Membranes)

By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Advanced Material Research have been published. According to news reporting originating from Alghero, Italy, by VerticalNews correspondents, research stated, "Among the myriad microfabrication approaches, Deep X-ray Lithography (DXRL) takes advantage of the high penetration depth of hard X-rays. For the first time, this feature has been exploited for the precise control of surface chemical functionalities on a thick porous ceramic material."

Our news editors obtained a quote from the research from the University of Sassari, "As a proof of concept, porous alumina membranes with controlled thickness (50 mu m) have been chosen to test the potential of DXRL. The Al2O3 membranes were decorated with fluoro- and amino-silanes. These functionalized ceramic membranes were exposed to hard X-rays in a synchrotron facility, which allowed for the selective decomposition of the chemical functionalities in controlled areas. The water contact angle of hydrophobic-functionalized samples was measured to confirm the decomposition of the fluoro-silane in the exposed area, and water diffusion through the 200 nm pores of the alumina membranes was observed to occur only in the exposed area."

According to the news editors, the research concluded: "The patterned amino-functionalized Al2O3 samples were tested with an alcoholic solution containing Au cations, where it was found that gold nanoparticles only formed in the unexposed areas, whereas the amino functionality survived the radiation damage induced by the X-rays."

For more information on this research see: 3D Spatially Controlled Chemical Functionalization on Alumina Membranes. Science of Advanced Materials, 2014;6(7):1520-1524. Science of Advanced Materials can be contacted at: Amer Scientific Publishers, 26650 The Old Rd, Ste 208, Valencia, CA 91381-0751, USA. (American Scientific Publishers -

The news editors report that additional information may be obtained by contacting P. Falcaro, University of Sassari, Lab Sci Mat & Nanotecnol LMNT, CR INSTM, DADU, I-07041 Alghero, SS, Italy. Additional authors for this research include A. Trinchi, C. Doherty, D. Buso, S. Costacurta, A.J. Hill, A. Patelli, P. Scopece, B. Marmiroli, H. Amenistch, B. Lasio, A. Pinna, P. Innocenzi and L. Malfatti.

Keywords for this news article include: Italy, Europe, Alghero, Advanced Material Research

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Source: Journal of Technology

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