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Page 68
Volume 4
December 10-12, 2018
Rome, Italy
Nano Research & Applications
ISSN: 2471-9838
Advanced Materials 2018
Nano Engineering 2018
JOINT EVENT
22
nd
International Conference on
Advanced Materials
and Simulation
&
22
nd
Edition of International Conference on
Nano Engineering &
Technology
S
onochemistry is an excellent technique to coat nanomaterials
on various substrates, imparting new properties to the
substrates. After a short demonstration of coating NPs on
ceramics and stainless steel, the author will present the coating
of textiles such as polyester, cotton, and nylon. In all cases a
homogeneous coating of NPs was achieved. Lately, the FDA
shows less enthusiasm towards nanoAg, as a result, we have
moved to NPs of ZnO, and CuO as antibacterial agents. They were
coated on the above-mentioned fabrics and showed excellent
antibacterial properties. The coated textiles were examined for
the changes in the mechanical strength of the fabric. A special
attention was dedicated to the question whether the NPs are
leaching off the fabric when washed repeatedly. The coated
ZnO NPs on cotton underwent 65 washing cycles at 92°C in
water in a hospital washing machine, no NPs were found in the
washing solution and the antibacterial behavior was maintained.
Recently, an experiment was conducted at Pirogov Hospital in
Sofia, Bulgaria in which one operation room was equipped with
antibacterial textiles, namely, bed sheets, pajamas, pillow cover,
and bed cover. Twenty patients in this operation roomwere probed
for bacterial infections. Their infection level was compared with
17 control patient that were using regular textiles. The results
demonstrate that a lower infection level is observed for those
patient exposed to the antibacterial textiles.The followingmedical
devices were coated with metal oxide nanoparticles and showed
very good biocidal properties and inhibition of biofilm formation
1) urinal catheters 2) contact lens 3) cochlear electrodes, 4)
metallic implants and 5) silicon implants. In his lecture the author
will demonstrate examples of 1 and 2 respectively. Coating of
catheters with the above mentioned NPs were performed and the
coated catheters were inserted in rabbits. Results showed that
the urine of the rabbits was not contaminated with bacteria.
gedanken@mail.biu.ac.ilAharon Gedanken
Bar Ilan University, Israel
Nano Res Appl 2018, Volume 4
DOI: 10.21767/2471-9838-C7-028
Making the hospital a safer place by the
sonochemical coating of all its textiles and medical
devices with antibacterial nanoparticles