Molecules, Vol. 29, Pages 1660: Use of Residual Malt from an Artisanal Beer Brewing Process in the Biosynthesis of Silver Nanoparticles Mediated by Nucleating and Structure-Directing Agents

Molecules, Vol. 29, Pages 1660: Use of Residual Malt from an Artisanal Beer Brewing Process in the Biosynthesis of Silver Nanoparticles Mediated by Nucleating and Structure-Directing Agents Molecules doi: 10.3390/molecules29071660 Authors: César A. Dueñas-Bolaños Margarita Cid-Hernández Gilberto Velázquez-Juárez Luis A. García-Casillas Luis J. González-Ortiz María Judith Sánchez-Peña Azucena Herrera-González Oscar Guillermo Zúñiga-González Edgar J. López-Naranjo Biosynthesized silver nanoparticles (AgNPs) are widely used in varied applications, which are morphology dependent. Consequently, a morphology-controlled synthesis is mandatory. Although there are several studies focused on the plant extract-based biosynthesis of metallic nanoparticles, the use of extracts obtained from agro-wastes is scant. Furthermore, information regarding morphology modification through the use of additional agents is even more scarce. Thus, in this study, AgNPs were synthesized using a malt extract (ME) obtained from an artisanal beer brewing process residue. Additionally, sodium chloride (NaCl), gum arabic (GA), and talc (T) were used in an attempt to modify the morphology of AgNPs. XRD, DLS, SEM, and TEM results demonstrate that stable AgNPs of different sizes and shapes were synthesized. FTIR, HPLC analysis, and the quantification of total proteins, free amino acids, reducing sugars, and total polyphenols before and after AgNPs synthesis showed that ME b...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research