Green Synthesis of Silver Nanoparticles by Plants Extract (original) (raw)
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World Journal of Biology Pharmacy and Health Sciences
Developing environmentally acceptable and reliable nanoparticle production technologies is a crucial step in nanotechnology. Because of their unique chemical, physical and biological properties, AgNPs have the potential to be used in various ways. As potential agents, biomolecules got from a variety of plant components were used to make it. Despite many academic efforts in the previous decade, synthesizing stability with greater applicability remains a serious challenge. This review reviewed the most recent advancements and breakthroughs in the manufacture of biogenic AgNPs, as well as their potential uses.
ChemInform Abstract: Innovative Eco-Friendly Approaches for Green Synthesis of Silver Nanoparticles
ChemInform, 2015
Nanotechnology is an escalating field that has made its contribution to all spheres of human life. The green synthesis of nanoparticles has paved for better methodologies and approaches in the medicinal field. Nowadays silver, gold and other metallic nanoparticles are used as an efficient carrier for drug molecules for developing novel drug delivery systems. In course of synthesizing these nanoparticles various chemicals, solvents and reagents are used which harms our eco system directly or indirectly. Silver nanoparticles (Ag NPs) have been widely used as a novel therapeutic agent extending its use as antibacterial, antifungal, anti-viral and anti-inflammatory agent. Silver nanoparticles (Ag NPs) prepared by green synthesis have many advantages over conventional methods involving chemical agents associated with environmental toxicity. Green synthetic methods include polysaccharide method, irradiation method, biological method, polyoxometallates method and tollens method. Green synthesis of nanoparticles is found to be an emerging branch of nanotechnology. The use of environmentally benign materials like plant leaf extract for the synthesis of nanoparticles offers numerous benefits of eco-friendliness and compatibility for pharmaceutical and biomedical applications as they do not use toxic chemicals in the synthesis protocols. Rapid and green synthetic methods using various plant extracts have shown a great potential in silver nanoparticles (Ag NPs) synthesis. This review article describes the bio-inspired synthesis of nanoparticles that provides advancement over chemical and physical methods as it is cost effective, eco-friendly and more effective in a variety of applications.
In Green Approaches: Synthesis of Silver Nanoparticles from Medicinal Plants-A Review
2015
Nanotechnology is a field that is mushrooming, making an impact in all spheres of human life. The development of green processes for the synthesis of nanoparticles is evolving into an important branch of nanotechnology.Synthesis of metal Nanoparticles is a growing area for research due to its potentiality in the application and development of advanced technologies. The use of AgNPs has become more widespread in our society. In this research article, a simple and eco-friendly biosynthesis of AgNPs was prepared using various plant extract as reducing agent. This review reports the potential of plants i.e. "green chemistry" to synthesis nanoparticles not only in the laboratory scale but also in their natural environment.
Alternative Green Chemistry Methods of Silver Nanoparticles Synthesis: Review and Comparison
Journal of Bionanoscience, 2017
Green chemistry is a branch of chemistry that deals with natural materials such as plants, fungi, bacteria, algae, and rocks rather than chemical components. Advantages of green chemistry rather than chemical are that no toxic components are released, inexpensive, available anytime, easy to get, and eco-friendly. Metallic nanoparticles have received great attention from chemists, physicists, biologists and engineers who wish to use them for the development of a new generation of nanodevices. One of the important metal nanoparticles is the silver nanoparticles (AgNPs). Silver is a nontoxic agent having an antibacterial, antifungal, and antioxidant properties. AgNPs have been used in many applications such as catalysis, biotechnology, biomedical applications, electronics, and in the treatment of burns and wounds. The green synthesis of AgNPs involves three main steps: the selection of the solvent medium, the selection of environmentally reducing agents, and the selection of non-toxic substances for the stability of AgNPs. In this review, we will discuss some green chemistry methods to synthesize AgNPs via plant extracts and other natural agents, such as fungi, bacteria, and algae. In addition, we will compare between these methods, according to their applications and stabilities.
Green Synthesis of Silver Nanoparticles: A Review
Green and Sustainable Chemistry, 2016
The bio-molecules from various plant components and microbial species have been used as potential agents for the synthesis of silver nanoparticles (AgNPs). In spite of a wide range of bio-molecules assisting in the process, synthesizing stable and widely applicable AgNPs by many researchers still poses a considerable challenge to the researchers. The biological agents for synthesizing AgNPs cover compounds produced naturally in microbes and plants. More than 100 different biological sources for synthesizing AgNPs are reported in the past decade by various authors. Reaction parameters under which the AgNPs were being synthesized hold prominent impact on their size, shape and application. Available published information on AgNPs synthesis, effects of various parameters, characterization techniques, properties and their application are summarised and critically discussed in this review.
Investigation of the Effect of Extracts on the Green Synthesis of Silver Nanoparticles
2017
Nanoparticles bio production, considering their performance in medicine and biological science, is increasing; also, raising awareness of green chemistry and bioprocesses has encouraged the use of environmentally friendly methods for the production of non-toxic nanomaterials. Also uses of plants extracts are found to be more advantageous over chemical, physical and microbial (bacterial, fungal, algal) methods for silver nanoparticles (AgNPs) synthesis.The objectives of this study were the production of silver nanoparticles using aqueous and hydroalcoholic extracts of Avena sativa L. and investigation of the effect of extracts on the synthesis of nanoparticles. The morphology and size of the nanoparticles were determined using Scanning Electron Microscope (SEM) and UV-Vis spectroscopy. SEM images showed that the synthesized nanoparticles were mainly spherical and round shaped. The results indicated that synthesized nanoparticles using aqueous extract were better than the synthesized ...
Green synthesis of silver nanoparticles using plant extracts
Proceedings of The 4th International Virtual Conference on Advanced Scientific Results, 2016
The use of silver nanoparticles in the field of nanomedicine is keeping pace and innovating with the ever expanding horizon of Nanobiotechnology. Ipomea species is widely cultivated and use for different purposes, such as, nutritional, medicinal, ritual and agricultural. The present study deals with the synthesis and characterization of silver nanoparticles using methonolic extract of Ipomoea indica flowers. UV-visible spectroscopy studies were carried out to assess the formation silver nanoparticles. The formation of Ag-NPs was confirmed by Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD) studies. SEM image revealed that silver nanoparticles are quite polydispersed, the size ranging from 10nm to 50nm. The formation of crystalline silver nanoparticles was confirmed using X-ray diffraction analysis. Extracellular synthesis of Ag nanoparticles using dried biomass appears to be cost effective, eco-friendly to that of conventional methods of nanoparticles synthesis.
IJERT-Synthesis and Characterization of Silver Nanoparticles from Ecofriendly Materials: A Review
International Journal of Engineering Research and Technology (IJERT), 2020
https://www.ijert.org/synthesis-and-characterization-of-silver-nanoparticles-from-ecofriendly-materials-a-review https://www.ijert.org/research/synthesis-and-characterization-of-silver-nanoparticles-from-ecofriendly-materials-a-review-IJERTV9IS090402.pdf Recently, silver nanoparticles have been investigated by various researchers due to their unusual optical, electronic and chemical properties. Likewise, depending on their size and shape, many possibilities with respect to technological applications have been advanced. Silver nanoparticle has been discovered as one of the inorganic nano-materials suitable as antimicrobial agents. Hence, synthesis of silver nanoparticles from leaf extracts of numerous plants has been evolving as a cost effective and environmental friendly alternative to chemical and physical methods. The use of plants as major materials for the synthesis of nanoparticles is a green chemistry approach that interconnects nanotechnology and plant biotechnology. The focus of the present review is to examine the various means of synthesis of silver nanoparticles (Ag-NP) using different methods, plant extracts and their characterization as appropriate materials for diverse engineering applications.
Synthesis and characterization of silver nanoparticles via green route
Korean Journal of Chemical Engineering, 2016
The development of competent green chemistry methods for synthesis of metal nanoparticles has become a main focus of researchers. In this study we report the green synthesis of silver nanoparticles (AgNps) by reduction of silver nitrate, using leaf broth of Azadirakta indica (Neem). The plant leaf broth simultaneously acts as reducing agent as well as capping agent at 30 o C. The effect of different concentration of silver ions, percentage of leaf broth and temperature on morphology of dispersed silver nanoparticles was studied. The formation of silver nanoparticles in dispersion was monitored through the analysis of absorbance spectra by UV-Visible spectrophotometer at different stages during the process of synthesis. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis revealed that silver nanoparticles were pure and monodispersed and size was ranging from 9-56 nm. Fourier transform infrared (FTIR) analysis indicates prominent bands of absorbance, which are responsible for reducing of Ag + ions and stabilization of obtained silver nanoparticles. Results confirmed this protocol as simple, rapid, cost effective, eco-friendly and alternative conventional physical/chemical methods.
Plant Mediated Green Synthesis of Silver Nanoparticles-A Review
International Journal of Plant Biology & Research, 2015
Developing an environment friendly process for synthesis of nanoparticles is a significant step in the field of nanotechnology. Nanotechnology involves the tailoring of materials at the atomic level to attain unique properties, which can be suitably manipulated for the desired applications. Among the all metallic nanoparticles silver nanoparticles draw more attention due to its unique physical, chemical and biological properties. Green protocol of synthesizing nanoparticles has emerged as an alternative to overcome the limitation of conventional methods. Plant and microorganisms are majorly applied for green synthesis of metallic nanoparticles. Using plants towards synthesis of nanoparticles are emerging and also beneficial compared to microbes with the presence of broad variability of bio-molecules in plants which can act as capping/stabilizing and reducing agents and so increases the rate of reduction and stabilization of synthesized nanoparticles. Among all organisms plants seem to be the best candidates for biosynthesis of silver nanoparticles and they are suitable for large-scale biosynthesis. Nanoparticles produced by plants are more stable and the rate of synthesis is faster than in the case of microorganisms. This review focuses on the green synthesis of silver nanoparticles using various plant sources.