Currently, the silver nanoparticles (AgNPs) are highly recurrent in medicine due to its magnetic and optical properties, becoming important antimicrobial, antiviral and anticarcinogenic agents; nevertheless, the synthesis of said nanoparticles is based on chemical methods, applying reducing and stabilizing agents that are highly polluting to environment and harmful to health. However, plant extracts can be used as a "green" method alternative to chemical conventional synthesis. In the present work, the aqueous extract of the leaves of an Oak native to Mexico ( Quercus rugosa; Fagaceae) was used as a reducing and stabilizing agent in AgNPs synthesis using silver nitrate as a precursor. Different tests were performed by varying the volume of the aqueous extract and the concentration of silver nitrate. Through UV-vis spectroscopy, the presence of biomolecules, such as polyphenols and flavonoids, was identified. The AgNPs were characterized by the identification of their plasmonic response.
mexican oak, quercus rugosa, fagaceae, silver nanoparticles
1. Shankar S.S., Rai A., Ahmad A., Sastry M. Rapid synthesis of Au, Ag, and bimetallic Au core-Ag shell nanoparticles using Neem (Azadirachta indica) leaf broth. India: Materials Chemistry Division, National Chemical Laboratory, 2004.
2. Kim Y.S., Kim J.S., Cho H.S., Rha D.S., Kim J.M., Park J.D., Choi B.S., Lim R., Chang H.K., Chung Y.H., Kwon I.H., Jeong J., Han B.S., Yu I.J. Twenty-Eight-Day Oral Toxicity, Genotoxicity, and Gender-Related Tissue Distribution of Silver Nanoparticles in Sprague-Dawley Rats. Incheon Institute, Korea. Journal de Toxicología por Inhalación, 2008, pp. 575-583.
3. Vilchis-Nestor A.R. et al. Solventless synthesis and optical properties of Au and Ag nanoparticles using Camellia sinensis extract. Faculty of Chemistry, Autonomous University of the State of Mexico, Toluca, Mexico, 2008.
4. Mittal A.K. et al. Synthesis of metallic nanoparticles using plant extracts. Biotechnology Advances Magazine, 2013, pp. 346-356.
5. Mensah J.K., Okoli R.I., Ohaju-Obodo J.O., Eifediyi K. Phytochemical, nutritional and medical properties of some leafy vegetables consumed by Edo people of Nigeria. African Journal of Biotechnology, 2008, vol. 7, no. 14, pp. 2304-2309
6. García A.Á., Pérez-Urria Carril E. Metabolismo secundario de plantas. Reduca (Biología). Serie Fisiología Vegetal., 2009, vol. 2, no. 3, pp. 119-145. [García A.Á., Pérez-Urria Carril E. Secondary plant metabolism. Reduca (Biology). Plant Physiology Series, 2009, vol. 2, no. 3, pp. 119-145. (In Span.)]
7. Pérez-Alonso N., Jiménez E. Producción de metabolitos secundarios de plantas mediante el cultivo in vitro. Biotecnología Vegetal, 2011, vol. 11, no. 4, pp. 195-211. [Pérez-Alonso N., Jiménez E. Production of secondary metabolites of plants through in vitro culture. Plant Biotechnology, 2011, vol. 11, no. 4, pp. 195-211. (In Span.)]
8. Moudi M. [et al.] Vinca alkaloids. Int J Prev Med, 2013, vol. 4, no. 11, pp. 1231-1235.
9. Cano T. Caracterización de una espirolactona sesquiterpénica α-metilénica obtenida de Ambrosia arborescens Milerl y evaluación de su actividad biológica en Tripanosoma cruzi. Revista Soc-Quim Perú, 2014, pp. 124-135. [Cano T. Characterization of an α-methylenic sesquiterpenic spirolactone obtained from Ambrosia arborescens Milerl and evaluation of its biological activity in Trypanosoma cruzi. Soc-Quim Peru Magazine, 2014, pp. 124-135. (In Span.)]
10. Neira I. Green synthesis of nanoparticles to remove dyes in Aqueous Media. University of Coruña Science Faculty. Department of Physical Chemistry and Chemical Engineering. Spain, 2015.
11. Ahmed S. [et al.] Green synthesis of silver nanoparticles using Azadirachta indica aqueous leaf extract. Journal of Research in Radiation and Applied Sciences, 2015, pp. 1-7.
12. Bagherzade G. [et al.] Green synthesis of silver nanoparticles using aqueous extract of saffron (Crocus sativus L.) wastages and its antibacterial activity against six bacteria. Asian Pac. J. Trop. Biomed., 2017, vol. 7, no. 3, pp. 227-233.
13. Batis A. [et al.] Árboles y Arbustos Nativos Potencialmente Valiosas para la Restauración Ecológica y la Reforestación. Instituto de Ecología, UNAM - Conabio, 1999. [Batis A. [et al.] Potentially Valuable Native Trees and Shrubs for Ecological Restoration and Reforestation. Institute of Ecology, UNAM - Conabio, 1999 (In Span.)]
14. Biblioteca de la Medicina Tradicional Mexicana. Atlas de las Plantas de la Medicina Tradicional Mexicana. Universidad Nacional Autónoma de México. 2009. Recuperado el 25 de marzo del 2019 de: http://www.unamenlinea.unam.mx/recurso/biblioteca-digital-de-la-medicina-tradicional-mexicana_80999. [Library of Traditional Mexican Medicine. Atlas of the Plants of Traditional Mexican Medicine. National Autonomous University of Mexico, 2009. Retrieved on March 25, 2019 from: http://www.unamenlinea.unam.mx/recurso/biblioteca-digital-de-la-medicina-tradicional-mexicana_80999 (In Span.)]
15. Olsen E.D. Metodos ópticos de análisis. Editorial Reverté, Barcelona, España, 1990, 681 p. [Olsen E.D. Optical methods of analysis. Editorial Reverté, Barcelona, Spain, 1990, 681 p. (In Span.)]
16. Mongue M. Nanopartículas de plata: metodos de síntesis en disolución y propiedades bactericidas. An. Quim., 2009, vol. 105, no. 1, pp. 33-41. [Mongue M. Silver nanoparticles: methods of synthesis in solution and bactericidal properties. An. Quim., 2009, vol. 105, no. 1, pp. 33-41. (In Span.)]
17. Edison T.J.I., Sethuraman M.G. Biogenic robust synthesis of silver nanoparticles using Punica granatum peel and its application as a green catalyst for the reduction of an anthropogenic pollutant 4-nitrophenol. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2013, vol. 104, pp. 262-264.
18. Thakur M., Pandey S., Mewada A., Shah R., Oza G., Sharon M. Understanding the stability of silver nanoparticles bio-fabricated using Acacia arabica (Babool gum) and its hostile effect on microorganisms. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2013, vol. 109, pp. 344-347.
19. Aleixandre-Tudo J.L., du Toit W. The Role of UV-Visible Spectroscopy for Phenolic Compounds Quantification in Winemaking. Frontiers and New Trends in the Science of Fermented Food and Beverages. IntechOpen, 2018.
