Capuli cherry-mediated green synthesis of silver nanoparticles under white solar and blue LED light--颗粒学报PARTICUOLOGY

Kumar, B., Angulo, Y., Smita, K., Cumbal, L., & Debut, A. (2016). Capuli cherry-mediated green synthesis of silver nanoparticles under white solar and blue LED light. Particuology, 24, 123-128. https://doi.org/10.1016/j.partic.2015.05.005

Capuli cherry-mediated green synthesis of silver nanoparticles under white solar and blue LED light

Brajesh Kumar ^*, Yolanda Angulo, Kumari Smita, Luis Cumbal, Alexis Debut

Centro de Nanociencia y Nanotecnologia, Universidad de las Fuerzas Armadas-ESPE, Av. Gral. Rumiñahui s/n, Sangolqui P.O. BOX 171-5-231B, Ecuador

10.1016/j.partic.2015.05.005

Volume 24, February 2016, Pages 123-128

Received 11 March 2015, Revised 8 May 2015, Accepted 11 May 2015, Available online 21 August 2015, Version of Record 21 January 2016.

E-mail: krmbraj@gmail.com

Highlights

• Ag nanospheres were synthesized by Capuli cherry extract under white solar and blue LED light.

• AgNPs made by blue LED light were smaller than white solar light.

• Antioxidant efficacy of AgNPs by blue LED light was higher (56.28%) than by white light (33.42%).

Abstract

In this article, the Capuli (Prunus serotina Ehrh. var. Capuli) cherry extract was used for the synthesis of silver nanoparticles (AgNPs) in the presence of white/visible solar and blue light-emitting diode (LED) light. For the characterization of the extract and the AgNPs, Fourier transform infrared spectroscopy and ultraviolet–visible spectroscopy were employed, along with hydrodynamic particle size analysis, transmission electron microscopy and X-ray diffraction. The Ag nanospheres obtained using white light were 40–100 nm in diameter and exhibited an absorption peak at λ_max = 445 nm, whereas those obtained using blue LED light were 20–80 nm in diameter with an absorption peak at λ_max = 425 nm. Thermal analysis revealed that the content of biomolecules surrounding the AgNPs was about 55–65%, and it was also found that blue LED light AgNPs (56.28%, 0.05 mM) had a higher antioxidant efficacy than the white solar light AgNPs (33.42%, 0.05 mM) against 1,1-diphenyl-2-picrylhydrazyl. The results indicate that obtaining AgNPs using a blue LED light may prove to be a simple, cost-effective and easily reproducible method for creating future nanopharmaceuticals.

Graphical abstract

Keywords

Silver nanoparticles; Capuli; LED light; Fourier transform infrared spectroscopy; Transmission electron microscopy; Antioxidant

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