Dr. Hari Singh Gour University

About: Dr. Hari Singh Gour University is a education organization based out in Saugor, Madhya Pradesh, India. It is known for research contribution in the topics: Drug delivery & Computer science. The organization has 1120 authors who have published 1315 publications receiving 29511 citations. The organization is also known as: Dr Harisingh Gour Vishwavidyalaya & Sagar University.

Bioremediation of Heavy Metal Contaminated Sites Using Phytogenic Nanoparticles

Abstract: Heavy metals (HMs) accumulate in milieu due to various human activities that persist leading to biomagnification in food chains and cause unpleasant effects on human health and environment. Pollutants such as organic matter and HMs are remediated traditionally by chemical precipitation, electrochemical treatment, adsorption, reverse osmosis, ion exchange, coagulation, and photo-catalyzation, remained ineffective. Use of nanomaterials conjugated with various compounds showed significant reduction in several contaminated sites. However, existing implication of nanotechnology works with nanoparticles (NPs) synthesis majorly involved the use of chemical raw materials and physical methods which are relatively toxic and unstable. Aforesaid difficulties made researchers and entrepreneurs to reconnoitre effective, newer, and novel synthesis approaches for the replacement over older version. During the past decade, to overcome these issues plant-derived NPs are extensively used because of its less cost, efficiency, and eco-friendly in nature. Hence, advanced alternative technology like phytoremediation using nanomaterials with innovative techniques has been a boon for HM remediation. Efficiency of green synthesized NPs is based on redox reactions which makes metals stable facilitated by flavonoids and polyphenols responding to HM-stress. Several metal complexation processes are known to produce phytochelatins or other metal-chelating peptides helping the bioremediation of HMs. Current chapter throws light on adaptive mechanism employed by NPs coupled with plant or microbial extracts in overcoming the HM stress. Furthermore, here we also focus on the possible mechanism and interaction between NPs and HM in minimizing severity of polluted sites with many examples.

Design and Analysis of Chalcogenide Based Photonic Crystal Fiber for Non-linear Optical Applications

Abstract: The linear and nonlinear optical properties of the chalcogenide photonic crystal fiber (PCF) is designed and analyzed Numerical simulation shows that the proposed PCF is highly nonlinear and provides all normal dispersion values in the range of wavelength 2 to 5 μm, The non-linear coefficient of designed PCF is 35 W−1m−1 at wavelength 2 μm The designed highly nonlinear and all normal dispersion chalcogenide PCF can be very useful in nonlinear optical applications such as generation of supercontinuum in the mid-infrared wavelength region

In vivo evaluation of some homoeopathic drugs against betelvine phytophthora disease

Abstract: The fungitoxicity of 4 homeopathic drugs (Apis meliphica, Bryonia, Arnica montana and Arsenicum album) was tested against Phytophthora causing foot rot and leaf rot diseases of Piper betle. A. meliphica, Bryonia and A. montana were most effective at very low potencies. The inhibition of leaf rot development was 100%, even at 30 potency. A. album showed total suppression of leaf rot development at 1000 potency. It is concluded that the use of homeopathic drugs for controlling different Phytophthora diseases is promising as they are cheap, harmless, easy to handle and full of chemotherapeutic potential. This is the first report of testing these 4 homeopathic drugs against Phytophthora of P. betle with marked antifungal activity.