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allied
academies
Asian Journal of Biomedical and Pharmaceutical Sciences | ISSN: 2249-622X | Volume 8
&
Joint Event
Chemistry and Organic Chemistry
Biomedicine & Pharmacotherapy
International Conference on
8
th
World Congress on
October 22-23, 2018 | Frankfurt, Germany
Notes:
Metallized and nanostructured metal polymer coatings obtained by
in situ
photo-induced approach
Lavinia Balan
Institute of Materials Science of Mulhouse, France
M
etal nanoparticles show potential applications in various
fields including but not limited to medicine, catalysis,
optics or electronics. Combining the intrinsic characteristics
of metal nanoparticles with those of polymers opens up
new vistas in the quest for materials with very innovative
properties. In this context, metal/polymer nanocomposite
materials were developed through a simple, rapid and
green approach based on the photoreduction of a metal
precursor and polymerization of a blend of monomers.
Silver nanofilms were directly generated on a variety of
substrates through this environmentally friendly approach,
which uses a simple UV source does not involve any
reducing or stabilizing agent and does not require any
thermal activation. Top-coated films of unprotected silver
nanoparticles were generated from a hydroalcoholic
AgNO
3
solution or an acrylate monomer formulation,
directly on glass substrates or food packaging plastic wraps.
The metal nanoparticles and metal/polymer nanocomposites
film obtained in this way were characterized and the
influence of several parameters (fluence, exposure,
silver ions concentration and nature of the free
radicals generator) on their formation was evaluated.
This photoinduced synthesis offers substantial advantages
since it combines the characteristic features of light activation
i.e. versatility and convenience of the process, high spatial
resolution and reaction controllability (intensity and
wavelength), with the simplicity of the colloidal approach.
Moreover, the use of amplitude masks or interferometric
devices to shape up the light beam used to induce the
photoreduction of silver cations provides a very powerful and
versatile means to spatially manipulate metal nanoparticles.
e:
lavinia.balan@uha.frChemistry and Biomedicine 2018, Volume 8
DOI: 10.4066/2249-622X-C4-012