Biogenic synthesis of magnesium oxide nanoparticles using Aloe barbadensis leaf latex extract

Abstract

Biological methods are employed to yield less or non-toxic MgO nanoparticles to utilize them in biological applications. Among various biosynthesis approaches, plant extracts with phytochemicals, especially from leaves, are widely used to fabricate MgO nanoparticles, due to their high availability, rapid synthesis and ability to yield smaller stable nanoparticles. Aloe barbadensis is a succulent xerophytic plant with unique characteristics to withhold water in its leaf named parenchymal gel, which is protected by a chloroplast containing thick latex, to avoid transpiration in high temperature condition of the desert. These latex contains phytochemicals such as flavanol, quercetin, Kaempeferol, myricetin and fisetin, along with other common phytochemicals such as phenols and terpenoids, that are essential for nanoparticle formation. Further, these compounds also possess enhanced biological properties. Thus, the aim of the present study is to obtain crude phytochemical extracts from Aloe barbadensis latex and utilize them as reducing and stabilizing agent for the smaller MgO nanoparticle formation. In addition, the parameters which affect the formation of nanoparticles are identified and optimized to yield smaller MgO nanoparticles with phytochemicals as surface functional groups, to be beneficial in biomedical applications.

Curcuma longa Mediated Synthesis of Copper Oxide, Nickel Oxide and Cu-Ni Bimetallic Hybrid Nanoparticles: Characterization and Evaluation for Antimicrobial, Anti-Parasitic and Cytotoxic Potentials

“…The total weight loss of the CuO-NPs was recorded as 63% until 600 • C, while NiO-NPs resulted in only 69% weight loss, and the hybrid NPs total loss was observed as 59.3%. The initial weight loss up to 150 • C is attributed to the dehydration and loss of moisture content from the samples [54]. Our results thus indicated that biosynthesized hybrid are thermally more stable than NiO-NPs, and NiO-NPs are more stable than CuO-NPs.…”

Green approaches for the synthesis of metal and metal oxide nanoparticles using microbial and plant extracts

“…36 The biosynthesis approach helps to reduce environmental toxicity by eliminating toxic byproducts and potential toxicity to living organisms, such as humans, animals, and plants, compared with conventional chemically and physically synthesized nanoparticles. 278 The surface functional groups, size, and shape of nanoparticles play key roles in their eco-friendly nature. 170,279 It should be noted that the biochemicals and biomolecules present on the surface of biosynthesized nanoparticles are less/nontoxic as they are biogenic compared with physically/chemically synthesized nanoparticles.…”

A Comprehensive Study on the Synthesis and Characterization of TiO2 Nanoparticles Using Aloe vera Plant Extract and Their Photocatalytic Activity against MB Dye

“…Titanium dioxide nanoparticles were minimised and manufactured using an Aloe leaf extract in aqueous solution (TiO 2 nanoparticles). The biosynthesis of 2 Adsorption Science & Technology TiO 2 NPs was confirmed by UV-vis spectroscopy [26].…”

“…Titanium dioxide nanoparticles were minimised and manufactured using an Aloe leaf extract in aqueous solution (TiO 2 nanoparticles). The biosynthesis of TiO 2 NPs was confirmed by UV-vis spectroscopy [26]. When combined with smaller MgO nanoparticles, as shown by HRTEM and FESEM study, Aloe barbadensis phytochemical extract may be employed for a variety of biological and biomedical applications [27, 28].…”