TY - JOUR
T1 - Rapid and facile synthesis of gold nanoparticles with two Mexican medicinal plants and a comparison with traditional chemical synthesis
AU - Soto, Karen M.
AU - López-Romero, Jose M.
AU - Mendoza, Sandra
AU - Peza-Ledesma, C.
AU - Rivera-Muñoz, E. M.
AU - Velazquez-Castillo, Rodrigo Rafael
AU - Pineda-Piñón, Jorge
AU - Méndez-Lozano, Nestor
AU - Manzano-Ramírez, Alejandro
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/2/1
Y1 - 2023/2/1
N2 - Mexico has an extensive diversity of plants used for medicinal purposes. Green synthesis of gold nanoparticles (AuNPs) with medicinal plants has attracted significant attention because of advantages like ease, cost-effectiveness, eco-friendly, and rapid synthesis. This article presents the antioxidant activity and the ability to synthesize AuNPs of the aqueous and ethanolic extracts of Tagetes erecta L flowers (marigold) and Hibiscus sabdariffa L (Rosell) flowers. The synthesized AuNPs were characterized using UV–Vis spectroscopy, Scanning transmission electron microscopy (STEM), TGA analysis, FTIR, XDR, and a stability study. UV–Vis spectrum shows the surface plasmon resonance peak (SPR) around 500–580 nm. STEM images showed a spherical, triangular, and hexagonal morphology with diameters between 11.48 and 43.93 nm for aqueous extracts and 9.22 and 11.59 for ethanolic extracts of T. erecta and H. sabdariffa, respectively. TGA and FTIR analysis revealed that organic compounds present in extracts capped the surface of AuNPs. Characteristics and stability of green AuNPs were compared with chemical synthesis, observing that green AuNPs present lower diameters and better stability related to the capping compounds.
AB - Mexico has an extensive diversity of plants used for medicinal purposes. Green synthesis of gold nanoparticles (AuNPs) with medicinal plants has attracted significant attention because of advantages like ease, cost-effectiveness, eco-friendly, and rapid synthesis. This article presents the antioxidant activity and the ability to synthesize AuNPs of the aqueous and ethanolic extracts of Tagetes erecta L flowers (marigold) and Hibiscus sabdariffa L (Rosell) flowers. The synthesized AuNPs were characterized using UV–Vis spectroscopy, Scanning transmission electron microscopy (STEM), TGA analysis, FTIR, XDR, and a stability study. UV–Vis spectrum shows the surface plasmon resonance peak (SPR) around 500–580 nm. STEM images showed a spherical, triangular, and hexagonal morphology with diameters between 11.48 and 43.93 nm for aqueous extracts and 9.22 and 11.59 for ethanolic extracts of T. erecta and H. sabdariffa, respectively. TGA and FTIR analysis revealed that organic compounds present in extracts capped the surface of AuNPs. Characteristics and stability of green AuNPs were compared with chemical synthesis, observing that green AuNPs present lower diameters and better stability related to the capping compounds.
KW - AuNPs
KW - Chemical synthesis
KW - Green synthesis
KW - Hibiscus sabdariffa
KW - Tagetes erecta L
UR - http://www.scopus.com/inward/record.url?scp=85143378828&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2022.127109
DO - 10.1016/j.matchemphys.2022.127109
M3 - Artículo
AN - SCOPUS:85143378828
SN - 0254-0584
VL - 295
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
M1 - 127109
ER -