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Page 37
Volume 3
Journal of Pharmacology and Medicinal Chemistry
Nanomedicine 2019
Biotechnology 2019
May 20-21, 2019
May 20-21, 2019 London, UK
4
th
World Biotechnology CONGRESS
Nanomedicine and Nanotechnology
4
th
International Conference on
&
Engineering of new proteinoids and proteinoid nanoparticles of narrow size distribution
for anti-fog
Elisheva Sasson
Bar Ilan University, Israel
T
he “fog phenomenon” describes the formation of tiny droplets of water on different surfaces. In day-to-day life, fog affects the
light transmission and damages the visibility of different surfaces, such as plastic packaging, lenses, mirrors and windshields.
In this study, a new thin coating onto polypropylene films, made of proteionoids and proteinoid nanoparticles for fog prevention,
is presented. The proteinoids and proteinoid nanoparticles were synthesized by thermal step-growth polymerization of amino
acids and therefore are non-toxic, biodegradable and biocompatible. The anti-fogging ability of proteinoids and proteinoid
nanoparticles was discussed in terms of wettability, surface chemistry and morphology, that were measured by contact angle
and atomic force microscopy. The efficiency of the anti-fog coatings was also tested by hot and cold fog tests to examine the
optical properties of the films under fog formation conditions. The obtained results revealed that the proteinoids and proteinoid
nanoparticle coatings perform as a wetting enhancer, mainly due to the low water contact angle (7-40°), that can be attributed to
the hydrophilic residues of the proteinoid. Furthermore, proteionoids and proteinoid nanoparticles improved the film roughness
by smoothing the surface of films (0.7-1.5 nm). In fog tests, uncoated PP film display many small waters drops on the surface
that damaged the transparency of the film. In contrast, PP films coated with proteinoids or proteinoid nanoparticles formed
a clear continuous thin layer of water on the surface. Additionally, the coating did not affect the clarity and haze of the films.
Therefore, the coated films may be utilized in many applications, such as food packaging, agriculture and esthetic nylon wraps.
Biography
Elisheva Sasson is PhD Candidate from The Institute of Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan
University. Her research deals with the design of coatings on plastic films by proteinoisd and proteinoid nanoparticles for anti-fog
applications. This work is carried out under the supervision of Prof. Shlomo Margel.
elisheva.sa@gmail.comJ Pharmacol Med Cheml, Volume 3