New insights on the green synthesis of metallic nanoparticles using plant and waste biomaterials: current knowledge, their agricultural and environmental applications

Abstract

Nanotechnology is a rapidly growing scientific field and has attracted a great interest over the last few years because of its abundant applications. Green nanotechnology is a multidisciplinary field that has emerged as a rapidly developing research area, serving as an important technique that emphasize on making the procedure which are clean, non-hazardous, and especially environmentally friendly, in contrast with chemical and physical methods currently employed for nanosynthesis. The biogenic routes could be termed green as these do not involve the use of highly toxic chemicals or elevated energy inputs during the synthesis. Differences in the bio-reducing agents employed for nanosynthesis can lead to the production of nanoparticles (NPs) having distinct shapes, sizes, and bioactivity. The exquitiveness of the green fabricated NPs have capacitated their potential applications in various sectors such as biomedicine, pharmacology, food science, agriculture, and environmental engineering. The present review summarizes current knowledge on various biogenic synthesis methods, relying on plants, waste biomass, and biopolymers and their reducing and stabilizing agents to fabricate nanomaterials. The main emphasis has been given on the current status and future challenges related to the wide-scale fabrication of nanoparticles for environmental remediation, pathogenicity, and agricultural applications.

Recent developments in nanotechnology transforming the agricultural sector: a transition replete with opportunities

“…Nanotechnology is becoming progressively significant for delivering pesticides for their safe applications. The application of nanotechnology in agriculture aims in particular to reduce the dose of plant protection agents, minimise nutrient loss, identify plant pathogens, detect pesticide residue, and increase yields . A nanopesticide is a formulation having nanomaterials as an active ingredient, employed to enhance the efficacy of plant protection products .…”

“…The application of nanotechnology in agriculture aims in particular to reduce the dose of plant protection agents, minimise nutrient loss, identify plant pathogens, detect pesticide residue, and increase yields. 103 A nanopesticide is a formulation having nanomaterials as an active ingredient, employed to enhance the efficacy of plant protection products. 104 Figure 2 presents various types of nanomaterials for the development of modern applications include, nanoemulsions, nanocapsules, carbon nanotubes, graphene oxide, zinc oxide, copper-gold nanoparticles, iron nanoparticles, silver nanoparticles and gold nanoparticles.…”

C‐S cross‐coupling reaction using novel and green synthesized CuO nanoparticles assisted by Euphorbia maculata extract

“…Nanotechnology is a novel scientific field that concerns materials at the nanoscale. [1] In recent decades, many types of research in different fields such as biotechnology, physics, chemistry, engineering, and medicine have focused on nanotechnology. [2][3][4] Metal nanoparticles (MNPs) have received significant interest regarding their considerable efficiency in catalytic reactions including cross-coupling, hydrogenation, multi-component,and oxidation.…”

Biogenic fabrication of iron nanoadsorbents from mixed waste biomass for aqueous phase removal of alizarin red S and tartrazine: Kinetics, isotherm, and thermodynamic investigation

“…Due to the presence of biomolecules like carbohydrates, amino acids, protein, and vitamins, living entities have become potent biofactories for NM production . Among living sources, plants are the most appropriate candidate for biomanufacturing of NMs due to their abundance, easy accessibility, and low cost . More importantly, any part of the plant, namely, leaf, stem, root, bark, flower, seed, and peel, can be used for the biosynthesis of nanometered materials …”

“…21 Among living sources, plants are the most appropriate candidate for biomanufacturing of NMs due to their abundance, easy accessibility, and low cost. 22 More importantly, any part of the plant, namely, leaf, stem, root, bark, flower, seed, and peel, can be used for the biosynthesis of nanometered materials. 23 In the present work, the aqueous extract of flower waste (Hibiscus rosasinensis), alligator weed and an agro-waste material orange peel have been utilized simultaneously for bioreductive production of iron nanoparticles (Fe-NPs).…”