Abstract
Nanotechnology has found vast applications in everyday life. Use of plant extract in the synthesis of nanocomposites produces relatively less toxic and environment-friendly materials. The present study deals with the synthesis of zinc oxide nanocomposite using gel from leaves of Aloe vera (black Aloe vera (BAV) and white Aloe vera (WAV)) and extract from powder of nuts of Terminalia arjuna. Synthesized nanocomposites were then characterized by using SEM, FTIR, and UV-Vis techniques. Disc diffusion method was opted to inquire the antimicrobial ability of nanocomposites against different bacterial strains such as Escherichia coli (−) and Burkholderia stabilis (+). ZnO-BAV possessed good antimicrobial potential against both selected strains as proved from zone of inhibitions. However, ZnO-WAV and ZnO-N showed potential against E. coli and no response for B. stabilis.
Highlights
A large variety of plant materials has been used for the synthesis of metal nanocomposites, and their potential antimicrobial effects have been reported in literature [18, 19]
Zinc nanoparticles are synthesized with the help of Aloe vera gel and Terminalia arjuna nuts
Terminalia arjuna belongs to genus Terminalia. is plant is usually located around riverbanks or near the derelict riverbank in South Asia [30,31,32]. e main chemical constituents of Terminalia nuts include triterpenoids, tannins, saponins, gallic acid, flavonoids, phytosterols, and ellagic acid [33]
Summary
A large variety of plant materials has been used for the synthesis of metal nanocomposites, and their potential antimicrobial effects have been reported in literature [18, 19]. Aloe vera is a succulent plant species from the genus Aloe. It is used as general tonic for immune system, and its juice can potentially be used to treat various diseases [23, 24] It is effective in treating lung cancer, diabetes, rheumatic arthritis, ulcers, skin burns, and indigestion; it is used as an anti-inflammatory agent and has cosmological importance [25,26,27,28,29]. Different studies showed that Terminalia arjuna plant exhibits antioxidant potential, hypotensive, anti-inflammatory, antiatherogenic, antimutagenic, anticarcinogenic, and gastroproductive effects. Extracts of this plant has proved it useful against coronary heart diseases
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