Synthesis of silver nanoparticles using aqueous extracts of Heterotheca inuloides as reducing agent and natural fibers as templates: Agave lechuguilla and silk.
Silver nanoparticles (Ag NPs) were synthesized using a one-pot green methodology with aqueous extract of Heterotheca inuloides as a reducing agent, and the support of natural fibers: Agave lechuguilla and silk. UV-Vis spectroscopy, X-Ray photoelectron spectroscopy XPS and transmission electron microscopy TEM were used to characterize the resulting bionanocomposite fibers. The average size of the Ag NPs was 16nm and they exhibited low polydispersity. XPS studies revealed the presence of only metallic Ag in the nanoparticles embedded in Agave. lechuguilla fibers. Significant antibacterial activities against gram-negative Escherichia coli and gram-positive Staphylococcus aureus were determined. AgO as well as metallic Ag phases were detected when silk threads were used as a substrates hinting at the active role of substrate during the nucleation and growth of Ag NPs. These bionanocomposites have excellent mechanical properties in tension which in addition to the antibacterial properties indicate the potential use of these modified natural fibers in surgical and biomedical applications.
Universidad Autónoma del Estado de México, Centro Conjunto de Investigación en Quı́mica Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km 14.5, San Cayetano, 50200 Toluca, Estado de México, Mexico. Electronic address: rmoralesl@uaemex.mx.
Raúl A
RA
Morales-Luckie
Universidad Autónoma del Estado de México, Centro Conjunto de Investigación en Quı́mica Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km 14.5, San Cayetano, 50200 Toluca, Estado de México, Mexico.
Aldo Adrián
AA
Lopezfuentes-Ruiz
Universidad Autónoma del Estado de México, Centro Conjunto de Investigación en Quı́mica Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km 14.5, San Cayetano, 50200 Toluca, Estado de México, Mexico.
Oscar F
OF
Olea-Mejía
Universidad Autónoma del Estado de México, Centro Conjunto de Investigación en Quı́mica Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km 14.5, San Cayetano, 50200 Toluca, Estado de México, Mexico.
Argueta-Figueroa
AF
Liliana
Facultad de Química, Universidad Autónoma del Estado de México. Paseo Colón y Paseo Tollocan, Toluca, Estado de México 50120, Mexico.
Víctor
V
Sanchez-Mendieta
Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science and Engineering, University of North Texas, 1150 Union Circle #305310, Denton, TX, United States.
Witold
W
Brostow
Department of Fiber Science and Apparel Design, Cornell University, 242 Van Rensselaer Hall, Ithaca, New York 14853-4203, United States.
Juan P
JP
Hinestroza
D027882:Agave / Q000737:chemistry* / Q000378:metabolism; D019659:Asteraceae / Q000737:chemistry* / Q000378:metabolism; D055119:Elastic Modulus; D004926:Escherichia coli / Q000187:drug effects; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000633:toxicity; D008826:Microbial Sensitivity Tests; D046529:Microscopy, Electron, Transmission; D010316:Particle Size; D056951:Photoelectron Spectroscopy; D010936:Plant Extracts / Q000737:chemistry*; D019163:Reducing Agents / Q000737:chemistry*; D047011:Silk / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013211:Staphylococcus aureus / Q000187:drug effects
D010936:Plant Extracts; D019163:Reducing Agents; D047011:Silk; D012834:Silver
Agave lechuguilla; Fibers; Heterotheca inuloides; Mechanical properties; Silk; Silver nanocomposite