Vikas Shrivastava

Amity University | AU · Amity Institute of Biotechnology

Aim Exploitation of nano-based materials has increased the disposal of nanoparticles into the environment. Toxic nanomaterials pose their adverse effects and severely impact the human and environmental health. The aim of this study was to explore the toxic effects of chemically-synthesized copper oxide nanoparticles (CuO-NPs) on Chlorella vulgaris...

This investigation aimed to evaluate in vitro antioxidant and antimicrobial activity from the methanolic extracts of tissue-cultured and field-grown parts of Nothopodytes nimmoniana. Antioxidant activity of the plant parts was measured by Di-phenyl-picryl-hydrazyl (DPPH) radical, reducing power, and hydrogen peroxide assays. Antimicrobial activity...

This study is related to the biosynthesis of copper nanoparticles using plant extracts of Ficus religiosa (peepal vriksh) and its potential as an effective antimicrobial agent, with special reference to wound-associated pathogens that are reported to form biofilms in chronic wounds. Wound biofilm-forming microorganisms hinder the healing process, a...

Nanobiotechnology is the application of nanotechnology in biological fields. Nanobiotechnology is a multidisciplinary field that currently engages researchers in conventional as well as advanced avenues of engineering and natural sciences.The recent developments in nanobiotechnology have impacted various socio-economic sectors, including medical, a...

The present study aims to synthesize and characterize eugenol-loaded nanocomposite (using Syzygium aromaticum), followed by drug loading and analysis of drug release kinetics using standard procedure. UV–Vis spectroscopy showed absorption band at 258 nm, FTIR revealed the availability of eugenol, and SEM analysis and X-ray diffractometer examinatio...

Abstract In the last decade, the bio-assisted synthesis of nanoparticles has been significantly exploited seeing the shortfall of chemical synthesis and urgent need to find the substitution. The chemical synthesis of nanoparticles is a rapid process, which might be appealing in various frontiers but has got some serious issues to take care of. In p...

The rapid hike in the usage of metallic as well as non-metallic nanoparticles demands their increased synthesis. In our study we synthesized bimetallic Zn-Cu nanoparticles using the greener route i.e. dry leaves powder of Citrus limon as it is environment-friendly, cost-effective, has a high surface area to volume ratio and hence superior over mono...

Nothapodytes nimmoniana is an endangered medicinal plant widely distributed throughout the Western Ghats of India. The plant contains camptothecin (CPT) which is renowned anticancer drugs. Though, CPT found in many plant species but maximum amount of CPT has been reported from N. nimmoniana. Due to very good source of CPT, this plant has been explo...

Gut microbiota is showing and raising evidence that the dynamic changes in the gut microorganism caninfluence physiology and behavior of brain. Dysbiosis or dysbacteriosis is a condition of microbialimbalance inside the intestinal microbiome. It has been associated with disorders of intestinal andextra‐intestinal such as inflammatory bowel disease...

In last week of December 2019, WHO was informed about unidentified cases of pneumonia in Wuhan, Hubei Province, People’s Republic of China. The symptoms were similar to viral pneumonia and after diagnosis and identification by Chinese Health authorities in first week of January 2020, [1] Coronavirus was identified as causative virus particle and na...

Iron is said to be very ubiquitous among all transition metals and also available profusely in the earth's crust. Using nanotechnology, several types of iron oxide nanoparticles have been synthesized. As previously reported Iron in the nanoscale (1-100nm) can show very potent catalytic, magnetic and, antibacterial properties. This study shows that...

Biofilm forms with the colonization of different microorganism resulting in a microbial community which is complex and diverse in nature. Biofilms are enclosed with different microbial colonies in a matrix known as extracellular polymeric substance. Microorganisms together in this complex structure communicate through cell signaling molecules. This...

Green synthesis of Iron Nanoparticles using Saraca asoca leaves extract to check its future prospects in various fields.

SCREENING OF WOUND ASSOCIATED BIOFILM FORMING PATHOGENS.

In last few years nanotechnology has received particular interest in a wide range of fields. The term "nano" comes from the Greek word "nano" meaning dwarf and denotes a measurement on the scale of one-billionth (10-9) of a metre in size. It is a branch of science, which deals with nano level substances. It widely covers the synthesis of materials...

The present study is focused at evaluation of antimicrobial activity of bio synthesized zinc oxide nanoparticles with special reference to Pseudomonas aeruginosa, Staphylococcus saprophyticus, Streptococcus pyogenes, Proteus mirabilis. Cassia siamea (Kassod) leaf extract was used for biosynthesis of zinc oxide nanoparticles. The synthesized Zinc ox...

Nanotechnology is a cutting-edge field of science, which allows the manipulation of materials having dimensions in nanometers. Nanotechnology has numerous applications in almost all the areas, including human health, environment, bio-diagnostics, drug delivery etc. Excessive and over-use of nanomaterials has led to the uncontrolled release of nanom...

Objective: Green synthesis of nanoparticles has been used as an alternative, efficient, less expensive, and ecofriendly method. Ancient approaches employed for nanoparticle fabrication were chemical and physical methods having various disadvantages as they are costly and potentially harmful to the environment, use of harsh chemicals and stringent p...

INTRODUCTION: Background/Aim The impaired wound healing is a major complication. Few factors like blood glucose level, poor circulation, Immune System Deficiency, and Infection are the root cause of impaired wound healing. Thus the present study aims at bio-synthesizing copper nanoparticles with potential antibacterial activity against wound associ...

Nanotechnology has been the topic of concern from past few decades and recent advances have made it far more interesting. Usage of nanoparticles in various technological applications make them “tiny heroes” that carry out certain processes which were otherwise impossible. In this review we discuss about metal nanoparticles and their forms such as b...

Objective: Traditional plants have been proved as a novel source for health-care remedies. The plants are the rich source of bioactive compounds which can be useful for health-care purpose. Emergence of resistance among pathogenic bacteria against available antibiotics is a common phenomenon. Hence, the plant-based bioactive molecule may be an alte...

Aim: The present study aims to employ use of plants as a source of synthesizing silver nanoparticles with less hazards towards environment, easily scaled up, stable and economically viable. Method: The Silver nanoparticles were synthesized by using Murraya Paniculata leaf extract. The biosynthesized nanoparticles are then allowed to characterize by...

This study aims to provide an insight into the phytomediated synthesis of Ag nanoparticles, and its significant applications in various fields. Eco-friendly approach for fabrication of metallic nanoparticles is an important area in the field of nanotechnology. To achieve this objective it is prerequisite to use 'natural compounds' like biological c...

Medicinal plants are the potential source of natural products and naturally derived compounds. These compounds show several useful properties like antioxidant, antimicrobial, antipyretic etc. The aim of this study is to evaluate the antimicrobial properties of Aegle Marmelos. In this study, antimicrobial activities of different extract of Aegle Mar...

Spices are the potential source of natural products and naturally derived compounds. These compounds show antioxidant, antimicrobial properties. The aim of this study is to evaluate the antimicrobial properties of Cinnamomum zeylanicum (Cinnamon). In this study, antimicrobial activities of 70% ethanolic extracts of Cinnamomum zeylanicum were evalua...

Nanobiotechnology is an emerging branch which deals with synthesis of nanomaterials and its application in science and technology. Nano particles have vast applications in magnetic devices, microelectronics, bio medicals, electro catalysis, photo catalysis, anticorrosive coatings and powder metallurgy, out of which clinical applications are in high...

The term nanotechnology encompasses the production of new materials at nano scale. Nano particles with interesting shapes can be prepared by different methods like physical and chemical method. Now day‟s biological methods of synthesis are used because it is environment friendly, cost effective, and easily scaled up process for large scale synthesi...

Water plays a pivotal role in human life. Physico-chemical & bacteriological parameters affects human to a greater extent of coming various water borne diseases. Water samples in various seasons & three years were collected from Angoori barrage Datia during 2009-11 were analyzed for Physico-chemical & Microbiological parameters. The physical (Colou...

Objective-Emergence of Multi Drug Resistance indicates a dire to understand the bacterial involvement in infections and find out new alternative approaches in its therapeutics and prevention. The present study was undertaken to study the antimicrobial resistance patterns of S. aureus isolated from various samples collected from Hospitals of Gwalior...

Nutraceuticals are natural bioactive chemical compounds that have health promoting, disease preventing or medicinal properties. Emergence of Multi Drug Resistant Staphylococci is increasing at alarming rates and diseases caused by these strains leave patients untreated due to lack of appropriate drugs. From ancient time, plants are rich source of e...

India is full of biodiversity and has rich fauna & flora. Many plants have medicinal values. The Sacred plants are named as Kalpa-vriksha (Adansonia Digitata) and Chaitya-vriksha (Ficus religiosa) in the ancient scriptures indicating that the worship of the tree is indeed an ancient Indian practice. The Plants, trees and the other elements were alw...

Silver-doped zinc oxide nanoparticles have been synthesized by a simple solution route, using zinc acetate [Zn(CH3COO)2·2H2O] and silver nitrate (AgNO3) as host and dopant precursors respectively. The effect of silver doping on the ZnO particle size and their antifungal activity against Aspergillus brasiliensi and Candida albicans was investigated....

Objectives: The present study has been undertaken to synthesize silver doped zinc oxide nanoparticles, with pharmaceutical importance. The synthesized particles have been evaluated to study the effect of silver doping on grain size and further on antibacterial activities against the microorganisms Bacillus subtilis and Staphylococcus aureus. Method...

The paper discusses about Reactive oxygen species (ROS) as a key enzyme in Plant Reactive Oxygen Species Detoxification.

Chitosan is a deacetylated product of chitin produced by chitin deacetylase, an enzyme that hydrolyses acetamido groups of N-acetylglucosamine in chitin. Chitosan is a natural polymer that has great potential in biotechnology and in the biomedical and pharmaceutical industries. Commercially, it is produced from chitin via a harsh thermochemical pro...

Abhishek Mathur dev bhoomi group of institutions (dbgi), dehradun (u.k), india. ABSTRACT An attempt has been made to establish a correlation between salt concentration, ABA production and Mangroves species. Mangroves are salt tolerant (halophytic) species that allows them to live under high salt conditions. Vivipary is the common feature found is M...

In the recent past, white rot fungi have received a considerable attention for the removal of color from pulp and paper mill effluents. Investigation was carried out to compare the biobleaching potential of reported four immobilized whit-rot fungal strains (a) Phanerocheate chrysosporium, (b) Trametes versicolor, (c) Daldelia flavlda and (d) Pleuro...

The study was undertaken to asses the Lipid peroxidation and antioxidant enzymes status in pre and post-menopausal breast cancer subjects. Three hundred fifty female human subjects (168 normal healthy & 182 breast cancer subjects) aged between 25-65 yrs. were selected for the study which were obtained from cancer hospital & research Institute (CHRI...