TY  - JOUR
T1  - PMMA/SiO<sub>2</sub> , ZnO, Ch) Biomedical Films
AU - Kareem Ahmed, Jaleel AU - Jawad Hadi, Nizar AU - Mahdi Abdullah, Salah 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 15
SP  - 6232
EP  - 6237
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.6232.6237
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.6232.6237
KW  - Composite films
KW  -antibacterial activity
KW  -nano silica
KW  -nano zinc oxide
KW  -concentration
KW  -FTIR
AB  - Composite films of Poly (Methyl Methacrylate) (PMMA)/SiO<sub>2</sub>-ZnO-Ch are prepared by casting 
method and evaluated for medical application. Nano silica was prepared from water glass by precipitation
method, chlorophyll (Bio natural pigment) extraction from medicago sativa and use as plasticizer. In this study,
nano silica and nano zinc oxide are used as filler to improve the biological and mechanical properties of
composite films. Where nano silica has good mechanical properties and nano zinc oxide has excellent
antibacterial activity (SiO<sub>2</sub>-ZnO and Ch) are used with a following percentages (1-3) wt.% to the polymer. Many tests are carried on composite films such as antibacterial activity, Fourier Transform Infrared spectroscopy
(FTIR) and tensile test. The result shown that zinc oxide has excellent antibacterial activity. And its activity in
composite films increasing with increasing its concentration.
ER  -