Abstracts Book - IMRC 2018

• SB2-P003
SYNTHESIS AND CHARACTERIZATION OF ZEOLITE ZSM-5
MODIFIED WITH Ag BY THE SOL-GEL METHOD ASSISTED BY
MICROWAVES FOR FUTURE APPLICATION IN TISSUE
ENGINEERING
Mayra Alejandra Hernandez Granados 1 , Jose M. Gutierrez Viezcas 2 , Maria de la Luz Mota 3,4 ,
Priscy Alfredo Luque 2 , Amanda Carrillo Castillo 1
1 Universidad Autónoma de Ciudad Juárez, Departamento de Ingeniería Eléctrica y
Computación, Instituto de Ingeniería y Tecnología, Mexico. 2 Universidad Autónoma de Baja
California, Facultad de Ingeniería, Arquitectura y Diseño, Mexico. 3 Consejo Nacional de Ciencia
y Tecnologia - CONACYT, Departamento de Ingeniería Eléctrica y Computación, Instituto de
Ingeniería y Tecnología, Mexico. 4 Universidad Autónoma de Ciudad Juárez, Instituto de
Ingeniería y Tecnología, Departamento de Ingeniería Eléctrica y Computación, Mexico.
Zeolites are microporous aluminosilicates used for their bioactivity, absorbent
properties and porous characteristics. ZSM-5 zeolite has a low aluminum
content thus reduced toxicity and is better for biomedical applications. In this
work, the concentration of aluminum was varied by adding silver in the structure
in different concentrations to decrease the aluminum content. The addition of
silver increases the bioactivity and antimicrobial character of the resulting
material. These characteristics improve the growth of P and Ca in the structure.
The synthesis was performed by the sol-gel method assisted by microwaves.
Then the zeolitic material was filtered and cleaned with HCl to remove all
impurities. Finally, simulated physiological fluid (SBF) tests were performed on
each sample for two periods of 14 and 21 days to study the growth of P and Ca
in the zeolite structure.
Characterization of the zeolites was made by thermogravimetric analysis (TGA),
scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform
infrared spectroscopy (FTIR) and dispersed energy spectroscopy (EDS) to
analyze the structural and chemical characteristics before and after their
immersion in simulated physiological fluid. The characterization of zeolite
modified with silver shows presence of growth of P and Ca in the structure,
which confirms the bioactivity of the zeolite. Sol-gel method assisted by
microwaves considerably reduces the time and cost of synthesis. Also the
characteristics obtained in Ag-ZSM-5 material make it a suitable candidate for
future applications in biomedical engineering.