Gnidia glauca Leaf and Stem Extract Mediated Synthesis of Gold Nanocatalysts with Free Radical Scavenging Potential

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.…”

“…Various plants, including Annona squamosal , Swertia chirata , Momordica cochinchinensis , Gnidia glauca , Medicago sativa , Mussaenda glabrata , Acer pentapomicum , Mimusops elengi , and Hibiscus sabdariffa , have been proposed for Au NP synthesis. For plants containing betanin, the reducing power of Djulis ( Chenopodium formosanum ) with 69.93 µmol Fe 2+ /g for ferric reducing antioxidant power (FRAP) was higher than red‐fleshed Hylocereus polyrhizus (32.50 µmol Fe 2+ /g) for synthesis of NPs .…”

“…4 A series of conventional chemical methods, such as wet chemical synthesis and solutions phase method, and physical methods, such as photochemical synthesis, microwave assisted method, and radiolysis, are extensively described in the literature. 5,6 Although the aforementioned methods for synthesis of Au NPs have been successfully applied, some drawbacks persist, such as high energy consumption, high cost, toxicity of chemicals, and potential risks for human health and the environment. 1,6 Efficient use of natural resources in green synthesis methods is essential for sustainable advancements in nanotechnology.…”

“…7 Green methods for synthesizing Au NPs involving the use of bacteria, yeast, fungi, and plant extracts have been investigated. 2 Among these methods, plant extract synthesis is relatively economical, sustainable, and easy to scale up, and thus serves as a simple and fast alternative to conventional chemical and physical 3694 www.soci.org M-N Chen et al 4 Gnidia glauca, 5 Medicago sativa, 6 Mussaenda glabrata, 8 Acer pentapomicum, 9 Mimusops elengi, 10 and Hibiscus sabdariffa, 11 have been proposed for Au NP synthesis. For plants containing betanin, the reducing power of Djulis (Chenopodium formosanum) with 69.93 μmol Fe 2+ /g for ferric reducing antioxidant power (FRAP) 12 was higher than red-fleshed Hylocereus polyrhizus (32.50 μmol Fe 2+ /g) for synthesis of NPs.…”

Protective Role of Green Synthesized Gold Nanoparticles Using Terminalia arjuna against Acetaminophen Induced Hematological Alterations in Male Wistar Rats

“…Scientific research reports demonstrated that several plants were used for biosynthesis of nanoparticles, which includes Sida acuta leaf extract [13], Beta vulgaris [14], crude extract of Syzygium aromaticum [15], Piper nigrum [16]. Synthesis of AuNPs using several plants have been reported which includes Terminalia arjuna [17], Morinda citrifolia L. [18], Murraya koenigii [19], Terminalia chebula [20], R. tuberosa& P. acidus [21], and Gnidia glauca [22]. From environmental issues it is clear that the green synthesis meets the significant potential in using of safe, harmless, renewable materials for nanoparticle synthesis.…”