Microwave-assisted rapid extracellular synthesis of stable bio-functionalized silver nanoparticles from guava (Psidium guajava) leaf extract

Studies on catalytic, antioxidant, antibacterial and anticancer activities of biogenic gold nanoparticles

“…4b) show bands at 1700 cm −1 , 1643 cm −1 , 1512 cm −1 , 1451 cm −1 , 1130 cm −1 and 966 cm − 1 . Band shift from 1744 cm − 1 to 1700 cm − 1 and the concomitant appearance of a band at 1451 cm − 1 due to C-O-H in plane bending of hydroxyl group in the FTIR spectrum [36,37] of GNPS, indicates the participation of flavonoids in reduction and stabilization of the biogenic GNPS. The bands at 1635 cm −1 and 1643 cm −1 correspond to carbonyl stretching vibrations in the amide linkages of proteins [38,39].The bands at 1541 cm −1 and 1512 cm − 1 have been assigned to C _ C stretching vibrations of carbon chain [40].…”

Plant extract synthesized silver nanoparticles: An ongoing source of novel biocompatible materials

“…Moreover, they have also capped around the synthesized nanoparticles, thus providing stability as well as biocompatibility. Recent studies have shown that the phytochemicals such as proteins ( Prabakar et al, 2013;Prakash et al, 2013;Santhoshkumar et al, 2011), flavonoids (Elavazhagan and Arunachalam, 2011;Philip, 2011;Raghunandan et al, 2011a;Subba Rao et al, 2013), polyphenols (Antony et al, 2011;Jeyaraj et al, 2013a;Kumar et al, 2010;Mohan Kumar et al, 2012;Njagi et al, 2011;Raghunandan et al, 2011b;Rodríguez-León et al, 2013;Roni et al, 2013;Sahu et al, 2013;Suganya et al, 2013), alkaloids (Vijayaraghavan et al, 2012), saponins (Geethalakshmi and Sarada, 2012), phenols (Lukman et al, 2011;Sathishkumar et al, 2012), essential oils (Vijayaraghavan et al, 2012), and polyols Veerasamy et al, 2011) present in the plant extracts were reported to play a major role in the bioreduction of silver ions and capping of the synthesized nanoparticles (Table 1).…”

Biogenic Synthesis of Silver Nanoparticles Using Guava (<i>Psidium guajava</i>) Leaf Extract and Its Larvicidal Action against <i>Anopheles gambiae</i>

“…Previous studies have characterized the synthesis process of AgNPs from P. guajava leaf extracts (Table 1 and references therein [27]- [50]). Potent antimicrobial action [46] [47] [49] [50], cytotoxicity [34], and dye fabric degradation [44] of AgNPs have been described.…”