Green Synthesis of Gold Nanoparticles Using Sumac Aqueous Extract and Their Antioxidant Activity

Abstract

Green synthesis of nanoparticles which have eco-friendly favourable solvent systems and environmentally reducing agents is of excessive importance. In this paper, we aimed to develop environmentally friendly, rapid and simple producer for the synthesis gold nanoparticles (Au-NPs) using aqueous extract of sumac as reducing agents for gold ions as well capping agent for the bioformed Au-NPs. The bio-synthesized Au-NPs were characterized by the UV-visible spectroscopy, FTIR, TEM, and zeta-potential measurements. The surface plasmon resonance band centred at 520 nm for Au-NPs was characterized by UV-visible spectrophotometer. The probable bio-molecules are polyphenols may responsible for reduction of gold ions were recognized through FT-IR. The TEM result shows the bioformed Au-NPs are spherical in shapes with the mean size of 20.83 ±4.4 nm. The capping of anionic bio-molecules on the surface of Au-NPs was confirmed by zeta potential assessment (-25.3 mV) and is responsible for the electrostatic stability. In vitro antioxidant activity studies showed that DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2, 2'-azino-bis 3-ethylbenzthiazoline-6-sulfonic acid) activities increased in a dose dependent manner. The bio-synthesized nanoparticles can potentially useful in pharmaceutical and biomedical applications.

Synthesis of gold nanoparticles using Crinum macowanii bulb extracts and the application of these materials in blood detections at crime scenes

“…In Figure (a), the presence of a peak at 538 nm attributed to Au surface plasmon resonance (SPR) confirmed AuNPs formation. This result correlates with other reported work based on plant extracts; 530 nm ( Sumac ), 546 nm ( Garcinia mangostana fruit peel), 535 nm ( Amaranthus spinosus leaf extract), 530 nm (Aqueous extracts of Lamiaceae plants) . A broad shoulder peak was also observed at around 651 nm.…”

“…[25] The absorption spectra of the as -synthesized AuNPs and Crinum macowanii bulb extract are shown in Figure 2. In Figure 2 with other reported work based on plant extracts; 530 nm (Sumac), [23] 546 nm (Garcinia mangostana fruit peel), [26] 535 nm (Amaranthus spinosus leaf extract), [24] 530 nm (Aqueous extracts of Lamiaceae plants). [25] A broad shoulder peak was also observed at around 651 nm.…”

“…The colour observation showed that the time taken for the ruby red colour to appear (indicative of AuNPs formation), was shorter in the case of Crinum macowanii bulb extract. The process took 30 mins for the ruby red to start appearing, in comparison with other plant extracts reported in the literature such as Sumac, (1 h), [23] Amaranthus spinosus leaf extract, (4 h) [24] and aqueous extracts of Lamiaceae plants, (24 h). [25] The absorption spectra of the as -synthesized AuNPs and Crinum macowanii bulb extract are shown in Figure 2.…”

Green synthesis palladium nanoparticles mediated by white tea (<em>Camellia sinensis</em>) extract with antioxidant, antibacterial, and antiproliferative activities toward the human leukemia (MOLT-4) cell line

“…3 In addition, molecular components of plant extracts have great affinity for the surface of nano-structures, and stabilize and prevent aggregation while improving the biological effects of NPs. 4 Thus far, more than 200 plants have been screened for their potential to produce inorganic NPs. 5,6 Dovepress Dovepress 8842 azizi et al developed palladium nanoparticles (PdNPs) that had remarkable optical, electronic, and chemical properties.…”

Green biosynthesis of gold nanoparticles using Chenopodium formosanum shell extract and analysis of the particles' antibacterial properties

“…1(d) and (e)) and revealed that the reaction time of 10 min for the aqueous Djulis shell extract is suitable for rapid prototyping and scaling up the process for practical applications. 5 Previous studies have reported that Au NPs were completely formed after a longer reaction than that noted for the Djulis shell extract, such as 25 min for Crescentia cujete L., 23 30-40 min for black cardamom, 24 1 h for Sumac, 25 and 24 h for Momordica cochinchinensis rhizome. 4 Furthermore, the Au NPs solutions of 744 and 930 μg mL −1 were stable at 4 ∘ C for at least 2 months.…”