RT Journal Article T1 Exploring the Possibilities of Biological Fabrication of Gold Nanostructures Using Orange Peel Extract A1 Castro Roldán, Laura A1 Blázquez Izquierdo, María Luisa A1 González González, Felisa A1 Muñoz Sánchez, Jesús Ángel A1 Ballester Pérez, Antonio AB Development of nanotechnology requires a constant innovation and improvement in many materials. The exploration of natural resources is a promising eco-friendly alternative for physical and chemical methods. In the present work, colloidal gold nanostructures were prepared using orange peel extract as a stabilizing and reducing agent. The initial pH value of the solution and the concentration of the gold precursor had an effect on the formation and morphology of nanoparticles. The method developed is environmentally friendly and allows control of nanoparticles. By controlling the pH and, especially, the gold concentration, we are able to synthesize crystalline gold nanowires using orange peel extract in the absence of a surfactant or polymer to direct nanoparticle growth, and without external seeding. UV-VIS spectroscopy, transmission electron microscopy (TEM), and X-ray diffraction (XRD) were used to characterize the nanoparticles obtained by biosynthesis. PB MDPI SN 2075-4701 YR 2015 FD 2015-09-11 LK https://hdl.handle.net/20.500.14352/23873 UL https://hdl.handle.net/20.500.14352/23873 LA eng NO Ministerio de Economía y Competitividad (MINECO) DS Docta Complutense RD 9 abr 2025