Abstracts Book - IMRC 2018

• SB6-P014
GREEN SYNTHESIS OF SILVER NANOPARTICLES MEDIATED BY
BIOLOGICAL EXTRACTS FOR ANTIBACTERIAL COATINGS
Beatriz Liliana España Sánchez 1,2 , Miriam Esteves 1 , Gabriel Luna Bárcenas 3 , Felipe Padilla Vaca 4
1 Centro de Física Aplicada y Tecnología Avanzada UNAM, Campus Juriquilla, Mexico. 2 Centro de
Investigación y Desarrollo Tecnológico en Electroquímica, Procesos Industriales y
Recubrimientos, Mexico. 3 Centro de Investigación y de Estudios Avanzados del IPN -
CINVESTAV, Polímeros y Biopolímeros, Mexico. 4 Universidad de Guanajuato, Biología, Mexico.
Propagation of pathogens in the environment and the antibiotics resistance
have prompted the research searching for alternatives to avoid infectious
diseases. Noble metals at the nano scale such as silver (Ag), copper (Cu), gold
(Au) and palladium (Pd); have demonstrated bacteriostatic/bactericidal
properties against microorganisms and recently have been considered as a new
generation of antimicrobial agents. Conventional methods to synthesize
metallic nanoparticles (NPs) include the chemical reduction of a metallic
precursor combined with solvents, stabilizers and reducing agents, which can
result in several risks associated with their toxicity. We report the green
synthesis of silver nanoparticles (nAg) using different biological reducing agents
as Coriandrum sativum, Capsicum Annuum and Citrus sinensis. In this regard,
we evaluate the morphological characteristics depending of the biological
extract and their antibacterial behavior when the NPs are incorporated into a
biopolymer matrix.
Acknowledgment:
The authors would like to thank to CONACYT for the financial support through
CB-2016-01/286926 and Problemas Nacionales 2016-01-2397 projects. Thank to
MC. Reina Aracely Mauricio-Sánchez for their technical support in chitosan
experiments and MC. Lourdes Palma Tirado for their technical support in TEM
imaging.
Keywords: Silver nanoparticles, Biological extracts, antibacterial coatings
Presenting authors email: lespana@cideteq.mx