Professor Aharon Gedanken

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Professor Aharon Gedanken nanoscale
materials, sonochemistry, sonoelectrochemistry,
microwave-based synthesis tel [phone] fax
03-5351250 e-mail gedanken_at_mail.biu.ac.il
http//www.biu.ac.il/ESC/ch/faculty/gedanken/ge
dint.html Biography Ph.D. Tel Aviv University
(w/Joshua Jortner, 1972) Postdoctoral with Otto
Schnepp at Univ. of Southern California Bar-Ilan
faculty since 1975 Visiting scientist at ATT
Bell Laboratories and at NIDDK, NIH Recent chair
National Committee for Advanced Materials
Chemical Technology Research Overview development
of novel methods for the fabrication of
nanomaterials, sonochemistry, microwave heating,
and sonoelectrochemistry, developed a chemical
method for the preparation of multi walled carbon
nanotubes, gt160 papers on nanomaterials in the
last 5 years.
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Novel Nanostructures
The Gedanken group makes crystalline and
amorphous nanoscale organic/inorganic materials
using sonochemistry, or sono-electrochemistry, or
microwaves
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Microwave Mediated Nanochemistry
First use of microwave for nanoscale materials.
Examples include copper metal, BaTiO3, Fe2O3, and
a variety of binary and ternary chalcagonides.
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High resolution TEM image of air-stable iron
nanoparticles (made by sonochemistry of Fe(CO)5
in diphenylmethane) annealed at 700 oC.
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A Sonochemical Route for the Encapsulation of
Tetracycline In Bovine Serum Albumin
MicrospheresJ. Am. Chem. Soc., 125 (51), 15712
-15713, 2003 S. Avivi (Levi), Y. Nitzan, R.
Dror, and A. Gedanken Department of Chemistry,
Bar-Ilan University, Ramat-Gan, 52900 Israel,
and Faculty of Life Sciences, Bar-Ilan
University, Ramat-Gan, 52900 Israel
Nanoparticles to Kill Bacteria Nanoparticles of
MgO have been shown to kill E.coli and S. aureus.
The nanosize is shown to be critical by comparing
the effectiveness particles of 12 nm, 18 nm, and
bulk.