Samiran Mondal

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We explored the application of three different aqueous solutions derived from Black Tea leaf extracts in the synthesis of Au and Ag nanoparticles. The plain tea leaf broth, as well as that containing the ethyl acetate extract of tea leaves, were found to be extremely efficient, leading to rapid formation of stable nanoparticles of various shapes: spheres,(More)
In this paper, we have demonstrated for the first time, the superb efficiency of aqueous extract of dried leaves of mahogany (Swietenia mahogani JACQ.) in the rapid synthesis of stable monometallic Au and Ag nanoparticles and also Au/Ag bimetallic alloy nanoparticles having spectacular morphologies. Our method was clean, nontoxic and environment friendly.(More)
A dramatic reduction in the excited-state intramolecular proton transfer (ESIPT) rate is observed for 3-hydroxyflavone (3-HF) within the nanoscopic polar domains of Aerosol-OT (AOT)/n-heptane reverse micelle solutions. It is attributed to the formation of intermolecularly hydrogen-bonded 3-HF:AOT complexes, which cause a significant disruption of(More)
In an attempt to find natural, environmentally benign, green-chemical agents for the synthesis of metal nanoparticles, we have demonstrated for the first time the excellent efficiency of ethanol and water extracts of a natural, non-toxic material, Indian propolis and two of its chemical constituents, pinocembrin and galangin in the rapid synthesis of stable(More)
A subacute toxicity study of acetamiprid was undertaken in 72 female Wistar rats randomly divided into four groups (18 each). Acetamiprid was administered orally at the dose rate of 0, 25, 100 and 200 mg/kg of body weight to rats of groups I, II, III and IV, respectively. Group I served as control. Calcium, phosphorous, sodium, potassium, chloride, zinc,(More)
A subacute toxicity study of acetamiprid was undertaken in 72 female wistar rats in four groups (18 each). Three different concentrations of acetamiprid (25, 100 and 200 mg/kg of body weight) were administered orally to rats. Untreated rat served as control. The antibody titre of sheep red blood cells (SRBC) in all the treated groups and decrease in cell(More)
Background: Sports surfaces not only play a significant role in influencing sports performance but also determining the risk of injury. The best running surface should be moderately soft & smooth and widely used in a variety of games & sports in schools. Aim: The aim of this study was to compare the shuttle run performance induced injury rates of school(More)
Background: Vitamin D, also known as calciferol, is a secosteroid hormone and an essential nutrient responsible for multiple biological functions in the human body. Functionally it is different from all other fat soluble vitamins. The body can synthesis it with the help of sunlight. Objective of the Study: The specific objective of this review article is to(More)
Content: Electromyography (EMG) is a recording of muscles electrical activity and is useful for mechanism study. In Exercise and Sport Science, mechanism of dominance and non-dominance limb activity is recently a focus area. Objective: The aim of this study is to observe the muscle electrical activity of soccer players’ dominant and non-dominant leg.(More)