Phytochemical-Mediated Biosynthesis of Silver Nanoparticles from Strobilanthes glutinosus: Exploring Biological Applications

文献类型： 外文期刊

第一作者： Javed, Rabia

作者： Javed, Rabia;Hameed, Hajra;Sharif, Muhammad Shakeeb;Afreen, Afshan;Mehboob, Saadia;Tariq, Muhammad;Ijaz, Shumaila;Nazish, Moona;Alarjani, Khaloud Mohammed;Elshikh, Mohamed S.;Abdul Razak, Sarah;Waheed, Abdul;Ahmed, Rashid

作者机构：

关键词： Strobilanthes glutinosus; silver nanoparticles; antioxidant; antibacterial; phytochemical

期刊名称：MICROMACHINES （ 影响因子：3.4； 五年影响因子：3.3 ）

ISSN：

年卷期： 2023 年 14 卷 7 期

页码：

收录情况： SCI

摘要： The application of green synthesis for silver nanoparticles in nanomedicine has experienced significant growth. Strobilanthes glutinosus, a plant primarily located in the Himalayas, remains largely unexplored. Considering the biomedical value of S. glutinosus, phytochemicals from this plant were used for the biosynthesis of silver nanoparticles. Silver nanoparticles were synthesized from aqueous extract of root and leaves of Strobilanthes glutinosus. The synthesized silver nanoparticles were characterized using UV-Vis spectrophotometry, Fourier-transform infrared spectroscopy, transmission electron microscopy, and X-ray diffraction. Total phenolic and flavonoid contents of plants were determined and compared with nanoparticles. The biomedical efficacy of plant extracts and silver nanoparticles was assessed using antioxidant and antibacterial assays. The UV-Vis spectra of leaf- and root-extract-mediated AgNPs showed characteristic peaks at 428 nm and 429 nm, respectively. TEM images revealed the polycrystalline and spherical shapes of leaf- and root-extract-mediated AgNPs with size ranges of 15-60 nm and 20-52 nm, respectively. FTIR findings shown the involvement of phytochemicals of root and leaf extracts in the reduction of silver ions into silver nanoparticles. The crystalline face-centered cubic structure of nanoparticles is depicted by the XRD spectra of leaf and root AgNPs. The plant has an ample amount of total phenolic content (TPC) and total flavonoid content (TFC), which enhance the scavenging activity of plant samples and their respective AgNPs. Leaf and root AgNPs have also shown good antibacterial activity, which may enhance the medicinal value of AgNPs.

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