Silver Nanoparticles Synthesis, Properties, Applications and Future Perspectives: A Short Review (original) (raw)
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The Applications of Green Synthesized Silver Nanoparticles: A Review
Eurasian Journal of Science and Engineering
Nanoscience is a fascinating field of study that has made unique outputs and applications both cost-effective and efficient. Significant and outstanding Nano-based applications have been applied in various sectors such as agricultural, food processing, and pharmaceutical sectors. Nanoparticles with sizes ranging from 1 to 100 nm have a significant measure of the relationship between surface area and volume. Because nanomaterials have a higher bioavailability than bigger particles, they can be used as individual cells; organs, and tissues are all examples of this. Silver is considered as the most researched and used material to prepare nanoparticle. Because of their vast range of prospective uses, silver nanoparticles have sparked a lot of attention. Silver nanoparticles are less hazardous to humans, but they are extremely harmful to bacteria. In biomedical applications, silver nanoparticles have been discovered to be useful in antimicrobial, catalysis, human health, and the environment cleanup. Silver nanoparticles are attractive catalytic materials for a variety of applications due to their outstanding optical and electrical characteristics. This article reviewed the synthesis of silver nanoparticles via green approach and important applications such as antimicrobial activity, insecticidal activity, anticancer activity, nanobiosensors, human health applications, environmental applications, painting application and many others.
A Review on the green synthesis, and application of silver nanoparticles
2016
Nanoparticles deals with particles having size in the range 1nm-100nm. Nanoparticles of noble metals such as silver show distinct physical, chemical and biological properties which vary according to their varying sizes and are also significantly different from the bulk silver materials. Their unique properties are due to their extremely small particle dimension, high surface area, size quantization effect and several other factors. Silver nanoparticles exhibit electromagnetic, optical, catalytic properties and these properties are highly influenced by the shape and size distribution of the nanoparticles. Silver nanoparticles of different size and shapes can be synthesized by tuning the various synthetic routes. Silver nanoparticles are recognized for its widespread applications also. So this review deals with the green synthetic procedures and applications of silver nanoparticles in medicine. KeywordsSilver nanoparticles, Green reduction method, Antibacterial activity.
Pure and Applied Biology, 2022
Nanotechnology is gaining popularity, because of its wide use in every field. Nanotechnology is continuously improving medical advancements. Nanoparticles can be engineered for their biocompatibility, size, shape and selectivity. Silver Nanoparticles have been extensively used by researchers because of their unique and wide properties such as size, shape, electrical properties and antimicrobial. Due to these properties silver nanoparticles have been used almost in every field from engineering to chemical and biological. Just like their properties, silver nanoparticles can be synthesize by various method including physical (Gamma Irradiation, Laser ablation and electron irradiation, microwave processing), chemical (chemical reduction and photochemical method) and biological. Due to the less toxicity, the use of silver Nanoparticles in life sciences has been increasing. The aim of the following review is to discuss the various methods of silver nanoparticle synthesis and their non-toxic application in the field of life sciences for the treatment of various diseases including Antibiotic resistance challenge and a tool for cancer therapy. The life sciences field will benefit from a mechanistic understanding of SNP therapeutic activities, which will aid in the development of individualized treatment and healthcare techniques for the benefit of the human population.
Int. J. Environ. Res. Public Health , 2013
Our research focused on the production, characterization and application of silver nanoparticles (AgNPs), which can be utilized in biomedical research and environmental cleaning applications. We used an environmentally friendly extracellular biosynthetic technique for the production of the AgNPs. The reducing agents used to produce the nanoparticles were from aqueous extracts made from the leaves of various plants. Synthesis of colloidal AgNPs was monitored by UV-Visible spectroscopy. The UV-Visible spectrum showed a peak between 417 and 425 nm corresponding to the Plasmon absorbance of the AgNPs. The characterization of the AgNPs such as their size and shape was performed by Atom Force Microscopy (AFM), and Transmission Electron Microscopy (TEM) techniques which indicated a size range of 3 to 15 nm. The anti-bacterial activity of AgNPs was investigated at concentrations between 2 and 15 ppm for Gram-negative and Gram-positive bacteria. Staphylococcus aureus and Kocuria rhizophila, Bacillus thuringiensis (Gram-positive organisms); Escherichia coli, Pseudomonas aeruginosa, and Salmonella typhimurium (Gram-negative organisms) were exposed to AgNPs using Bioscreen C. The results indicated that AgNPs at a concentration of 2 and 4 ppm, inhibited OPEN ACCESS Int. J. Environ. Res. Public Health 2013, 10 5222 bacterial growth. Preliminary evaluation of cytotoxicity of biosynthesized silver nanoparticles was accomplished using the InQ™ Cell Research System instrument with HEK 293 cells. This investigation demonstrated that silver nanoparticles with a concentration of 2 ppm and 4 ppm were not toxic for human healthy cells, but inhibit bacterial growth.
Silver nanoparticles: synthesis, properties, toxicology, applications and perspectives
Advances in Natural Sciences: Nanoscience and Nanotechnology, 2013
In recent years the outbreak of re-emerging and emerging infectious diseases has been a significant burden on global economies and public health. The growth of population and urbanization along with poor water supply and environmental hygiene are the main reasons for the increase in outbreak of infectious pathogens. Transmission of infectious pathogens to the community has caused outbreaks of diseases such as influenza (A/H 5 N 1), diarrhea (Escherichia coli), cholera (Vibrio cholera), etc throughout the world. The comprehensive treatments of environments containing infectious pathogens using advanced disinfectant nanomaterials have been proposed for prevention of the outbreaks. Among these nanomaterials, silver nanoparticles (Ag-NPs) with unique properties of high antimicrobial activity have attracted much interest from scientists and technologists to develop nanosilver-based disinfectant products. This article aims to review the synthesis routes and antimicrobial effects of Ag-NPs against various pathogens including bacteria, fungi and virus. Toxicology considerations of Ag-NPs to humans and ecology are discussed in detail. Some current applications of Ag-NPs in water-, air-and surface-disinfection are described. Finally, future prospects of Ag-NPs for treatment and prevention of currently emerging infections are discussed.
Silver Nanoparticles - A Review with Focus on Green Synthesis
International Journal of Pharma Research & Review, 2016
The present review focuses on the green synthesis of silver nanoparticles by using an endophytic fungus, the properties of silver nanoparticles and the general techniques by which nanoparticles can well characterized. Silver has been used since ancient time due to its potent antimicrobial effect and now it is recognized as a non toxic and safe for human beings. Silver nanoparticles have attracted keen interest due to its specific size ranges 1-100 nm and its unique physical, chemical and biological properties. There are several methods reported for the synthesis of silver nanoparticles including physical, chemical and biological methods in which biological method are cheap, reliable, safe and non toxic over physical and chemical methods. Furthermore green synthesis technique is a promising approach for synthesis of silver nanoparticles showing antimicrobial effect as its not uses any toxic chemicals and specific higher temperature and pressure. But use of endophytic Fungi provides s...
Silver nanoparticles and their applications-A comprehensive review
Pure and Applied Biology, 2022
The nanotechnology is a rapidly flourishing field with broad spectrum applications in almost every field. It has established that smaller size nanoparticles are more toxic compared to larger ones. Use of silver nanoparticles (AgNPs) has been recognized since the last couple of years. Though many commercial methods are available for their synthesis but biogenic synthesis has proven more efficient and environmentally friendly. AgNPs have shown quite interesting, useable and promising characteristics in various fields of human life. The biomedical applications of AgNPs have gained a huge interest of scientific community, and have significantly improved personalized healthcare practice (various types of surgeries, antibiotics, drug delivery formulations). It has been said that AgNPs have novel antimicrobial applications as anti-bacterial, anti-biofilm, anti-fungal and anti-viral agents. Strong antibacterial activity of AgNPs makes these ideal in fighting against multi drug resistant bacteria (MDR). Similarly, AgNPs also have proven their potential in agriculture field, environment and industrial sector. This review aims to provide an insight on biogenic synthesis and characterization of AgNPs alongwith applications in everyday life from economical, commercial and industrial perspective. Due to easy synthesis and wider availability of AgNPs, they are being considered as important constituent in the preparation of different commercially and bio-medically useful products alongwith enormous use in food packaging system for longer shelf life and prevention of spilage.
Synthesis, Characterization and Antimicrobial Activity of Silver Nanoparticles
New Technologies, Development and Application II, 2019
During the past few years, metal nanoparticles received attention due to their interesting optical and electrical properties. Among them, silver nanoparticles (AgNP) showed various specific properties. In this paper, we’ve synthesised silver nanoparticles and tested their antimicrobial activity. As a precursor for silver, we used silver salt-AgNO3. As a stabilizer and also a reducing agent, we used gallic acid monohydrate, because it is known that in strong alkaline solutions, this acid is capable of reducing silver ammonium complex, thus generating stable AgNPs. The characterization was done with UV/VIS spectrophotometer by assessment of absorption maximum λmax in certain interval of time. In order to determine the inhibitory effects of silver nanoparticles, the test diffusion antibiogram method was used. Based on the obtained results, we concluded that nanoparticles synthesized in this way, show excellent antimicrobial activity and can be used as antimicrobial agent.
Facile Synthesis of Silver Nanoparticle and Their Potential Application
American Journal of Nanoscience and Nanotechnology, 2014
Our research focused on the production, characterization and application of silver nanoparticles (AgNPs), which can be utilized in biomedical research and environmental cleaning applications. We used an environmentally friendly Green synthetic technique for the production of the AgNPs. The Vitex negundo leaf extract used to produce the nanoparticles were from aqueous extracts. Synthesis of colloidal AgNPs was monitored by UV-Visible spectroscopy. The UV-Visible spectrum showed a peak between 410 nm corresponding to the Plasmon absorbance of the AgNPs. The method used for the preparation of silver nanoparticles was found to be rapid and require no toxic chemicals. The Vitex negundo capped silver nanoparticles were characterized by UV/Vis-spectroscopy, Particle size analyzer (PSA), Transmission electron microscopy (TEM) and Energy dispersive X-ray Analysis (EDX). Duly characterized nanoparticles were explored for their application as antimicrobial agent were also found to exhibit reasonably good antimicrobial activity when compared with standard Chloramphenicol, which suggests its potential use as antimicrobial agent with Gram-negative and Gram-positive bacteria, which is not toxic for human healthy cells, but inhibit bacterial growth.