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Synthesis of antibacterial silver-based nanodisks and dendritic structures mediated by royal jelly

AutorMendoza-Reséndez, R.; Gómez-Treviño, A.; Barriga-Castro, E.D.; Núñez, Nuria O. ; Luna, C.
Fecha de publicación2014
CitaciónRSC Advances 4: 1650- 1658 (2014)
ResumenThe one-step preparation of silver nanoparticles and dendritic structures mediated by aqueous royal jelly solutions has been investigated for the first time. It has been found that royal jelly (RJ) is a complex organic matrix that can be simultaneously used as a reducing and stabilizing agent in the chemical synthesis of colloidal silver-based nanostructures from aqueous AgNO3 solutions, without the requirement of additional reagents or heating sources to initiate the oxidation-reduction reactions. The resulting product consisted of very fine single-crystal disks of Ag and silver 4,4′- dimethyldiazoaminobenzene (a triazenic compound). Both kinds of particles tended to coalesce and form supramolecular dendritic structures, the AgNO 3/RJ weight ratio chosen in the synthesis being a key parameter to control the crystal growth and the microstructural properties of the Ag nanodisks. Data obtained from Fourier transform infrared and Raman spectroscopy analysis indicated that these nanostructures are coated by RJ biomolecules (residues of proteins and carbohydrates). In vitro biological assays showed that these nanostructures exhibit a promising enhanced antibacterial activity against both Gram-positive and Gram-negative bacteria. © 2014 The Royal Society of Chemistry.
Identificadoresdoi: 10.1039/c3ra45680c
issn: 2046-2069
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