A. Muthu Kumara Pandian

Bio: A. Muthu Kumara Pandian is an academic researcher from Department of Biotechnology. The author has contributed to research in topics: Silver nanoparticle & Silver nitrate. The author has an hindex of 6, co-authored 8 publications receiving 103 citations. Previous affiliations of A. Muthu Kumara Pandian include Annamalai University.

Isotherm and kinetic studies on adsorption of malachite green using chemically synthesized silver nanoparticles

Abstract: In the present study, chemically synthesized silver nanoparticles (AgNPs) were used for adsorption of the dye malachite green (MG). The process variables such as nanoparticle dosage, pH and temperature were optimized for the decolourization of MG dye solution using the response surface methodology (RSM). At the optimized parameter condition, studies were carried out for effects with respect to various concentrations of dye and time for isotherm and kinetic studies, respectively. RSM was also employed for the enhanced production of silver nanoparticles (AgNPs). Synthesized AgNPs were characterized by UV–Vis spectroscopic, scanning electron microscopic and Fourier transform infrared analyses. From the results, it was concluded that the AgNPs readily decolourized MG dye. At the optimized conditions, maximum removal (more than 90%) of MG dye occurred. It was also found that the D–R isotherm and intraparticle diffusion fitted the data better as compared to other isotherm and kinetic models.

Impacts of Silver Nanoparticles on Plants: A Focus on the Phytotoxicity and Underlying Mechanism

Abstract: Nanotechnology was well developed during past decades and implemented in a broad range of industrial applications, which led to an inevitable release of nanomaterials into the environment and ecosystem. Silver nanoparticles (AgNPs) are one of the most commonly used nanomaterials in various fields, especially in the agricultural sector. Plants are the basic component of the ecosystem and the most important source of food for mankind; therefore, understanding the impacts of AgNPs on plant growth and development is crucial for the evaluation of potential environmental risks on food safety and human health imposed by AgNPs. The present review summarizes uptake, translocation, and accumulation of AgNPs in plants, and exemplifies the phytotoxicity of AgNPs on plants at morphological, physiological, cellular, and molecular levels. It also focuses on the current understanding of phytotoxicity mechanisms via which AgNPs exert their toxicity on plants. In addition, the tolerance mechanisms underlying survival strategy that plants adopt to cope with adverse effects of AgNPs are discussed.

Current developments in green synthesis of metallic nanoparticles using plant extracts: a review.

Abstract: Metal nanoparticles (MNPs) produced by green approaches have received global attention because of their physicochemical characteristics and their applications in the field of biotechnology In recent years, the development of synthesizing NPs by plant extracts has become a major focus of researchers because of these NPs have low hazardous effect in the environment and low toxicity for the human body Synthesized NPs from plants are not only more stable in terms of size and shape, also the yield of this method is higher than the other methods Moreover, some of these MNPs have shown antimicrobial activity which is consistently confirmed in past few years Plant extracts have been used as reducing agent and stabilizer of NPs in which we can reduce the toxicity in the environment as well as the human body only by not using chemical agents Furthermore, the presence of some specific materials in plant extracts could be extremely helpful and effective for the human body; for instance, polyphenol, which may have antioxidant effects has the capability for capturing free radicals before they can react with other biomolecules and cause serious damages In this article, we focused on of the most common plants which are regularly used to synthesize MNPs along with various methods for synthesizing MNPs from plant extracts

Green Chemistry Synthesis of Silver Nanoparticles and Their Potential Anticancer Effects.

Abstract: Nanobiotechnology has grown rapidly and become an integral part of modern disease diagnosis and treatment. Biosynthesized silver nanoparticles (AgNPs) are a class of eco-friendly, cost-effective and biocompatible agents that have attracted attention for their possible biomedical and bioengineering applications. Like many other inorganic and organic nanoparticles, such as AuNPs, iron oxide and quantum dots, AgNPs have also been widely studied as components of advanced anticancer agents in order to better manage cancer in the clinic. AgNPs are typically produced by the action of reducing reagents on silver ions. In addition to numerous laboratory-based methods for reduction of silver ions, living organisms and natural products can be effective and superior source for synthesis of AgNPs precursors. Currently, plants, bacteria and fungi can afford biogenic AgNPs precursors with diverse geometries and surface properties. In this review, we summarized the recent progress and achievements in biogenic AgNPs synthesis and their potential uses as anticancer agents.