Green synthesis of silver nanoparticles using leaf extract of Woodfordia fruticosa (L.) for potential therapeutic application

Abstract

BACKGROUND

Woodfordia fruticosa is a well-known medicinal plant traditionally used for various treatment methods. Green synthesis of silver nanocomposite with woodfordia flower extract is well-investigated. However, the therapeutic potential of Woodfordia fruticosa leaf extract silver nanoparticles against various diseases has yet to be investigated.

RESULTS

Silver nanoparticles synthesized from Woodfordia fruticosa leaf extract (Wf-AgNPs) showed UV spectral peaks at 450 nm. Transmission electron microscope (TEM) images, ranging from 20 to 50 nm, confirm the nanosynthesis. The average particle size of 39.63 nm with a zeta potential distribution value 17.0 was observed. Fourier transform infrared peaks ranging from 2942to 669 cm⁻¹ confirm the amines, amides, carboxylic, aldehyde, alkane, phenolic and aliphatic bromo compounds involved in the synthesis of AgNPs. Wf-AgNPs showed higher antioxidant activity compared to the ascorbic acid and BHT. The phenolic and flavonoid content was 141.66 ± 8.50 mg GAE/100 g dry weight and 191.66 ± 5.6 mg quercetin equivalent/100 g dry weight, respectively. Wf-AgNPs showed a strong inverse relationship between the dose and viability of the cancer cells. The antibacterial properties of Wf-AgNPs were confirmed through the bacteria's SEM images. Increased wound healing potential, re-epithelization and elevation of the tensile strength of the infected skin tissue were observed after applying synthesized Wf-AgNPs.

CONCLUSION

Various phytochemicals in the synthesized nanoparticles confer antimicrobial, antioxidant, anticancer and wound-curing potentiality to the Wf-AgNPs. © 2024 Society of Chemical Industry (SCI).