Milaneze Bárbara A, Oliveira Jairo P, Augusto Ingrid, Keijok Wanderson J, Côrrea Andressa S, Ferreira Débora M, Nunes Otalíbio C, Gonçalves Rita de Cássia R, Kitagawa Rodrigo R, Celante Vinícius G, da Silva André Romero, Pereira Ana Claudia H, Endringer Denise C, Schuenck Ricardo P, Guimarães Marco C C
Federal University of Espirito Santo, Av Marechal Campos1468, Vitória, ES, 29.040-090, Brazil.
Federal Institute of Espírito Santo, Av. Morobá, 248 - Morobá, Aracruz, ES, 29192-733, Brazil.
Nanoscale Res Lett. 2016 Dec;11(1):465. doi: 10.1186/s11671-016-1683-3. Epub 2016 Oct 18.
The development of new routes and strategies for nanotechnology applications that only employ green synthesis has inspired investigators to devise natural systems. Among these systems, the synthesis of gold nanoparticles using plant extracts has been actively developed as an alternative, efficient, cost-effective, and environmentally safe method for producing nanoparticles, and this approach is also suitable for large-scale synthesis. This study reports reproducible and completely natural gold nanocrystals that were synthesized using Virola oleifera extract. V. oleifera resin is rich in epicatechin, ferulic acid, gallic acid, and flavonoids (i.e., quercetin and eriodictyol). These gold nanoparticles play three roles. First, these nanoparticles exhibit remarkable stability based on their zeta potential. Second, these nanoparticles are functionalized with flavonoids, and third, an efficient, economical, and environmentally friendly mechanism can be employed to produce green nanoparticles with organic compounds on the surface. Our model is capable of reducing the resin of V. oleifera, which creates stability and opens a new avenue for biological applications. This method does not require painstaking conditions or hazardous agents and is a rapid, efficient, and green approach for the fabrication of monodisperse gold nanoparticles. Graphical Abstract The Virola oleifera reduction method for the synthesis of gold nanoparticles (AuNP's).
仅采用绿色合成的纳米技术应用新途径和新策略的发展,激发了研究人员设计天然体系。在这些体系中,利用植物提取物合成金纳米颗粒已作为一种替代、高效、经济且环境安全的纳米颗粒生产方法被积极开发,并且这种方法也适用于大规模合成。本研究报道了使用油籽维罗勒提取物合成的可重现且完全天然的金纳米晶体。油籽维罗勒树脂富含表儿茶素、阿魏酸、没食子酸和类黄酮(即槲皮素和圣草酚)。这些金纳米颗粒发挥三个作用。第一,基于其zeta电位,这些纳米颗粒表现出显著的稳定性。第二,这些纳米颗粒用类黄酮进行功能化,第三,可以采用一种高效、经济且环境友好的机制来生产表面带有有机化合物的绿色纳米颗粒。我们的模型能够还原油籽维罗勒的树脂,从而产生稳定性并为生物应用开辟新途径。该方法不需要苛刻的条件或危险试剂,是一种用于制备单分散金纳米颗粒的快速、高效且绿色的方法。图形摘要 用于合成金纳米颗粒(AuNP's)的油籽维罗勒还原法。