Aizawl, India

Mizoram University
Aizawl, India

Mizoram University is a central university under the University Grants Commission, Government of India, and was established on July 2, 2001, by the Mizoram University Act of the Parliament of India. The President of India is the official Visitor, and the Governor of Mizoram acts as the Chief Rector as per Mizoram University Bill, 2007. According to the Act, the objectives of the university are "to disseminate and advance knowledge by providing instructional and research facilities in such branches of learning as it may deem fit, to make provisions for integrated courses in humanities, natural and physical science, social science, forestry and other allied disciplines in the educational programmes of the University; to take appropriate measures for promoting innovations in teaching-disciplinary studies and research; to educate and train man-power in the development of the state of Mizoram; and to pay special attention to the improvement of the social and economic conditions and welfare of the people of that State, their intellectual, academic and cultural development". Keeping these objectives in view, Mizoram University has embarked on various programmes for academic and administrative development. Wikipedia.

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Jagetia G.C.,Mizoram University | Rajanikant G.K.,National Institute of Technology Calicut
International Wound Journal | Year: 2012

Fractionated irradiation (IR) before or after surgery of malignant tumours causes a high frequency of wound healing complications. Our aim was to investigate the effect of curcumin (CUM) on the healing of deep excision wound of mice exposed to fractionated IR by mimicking clinical conditions. A full-thickness dermal excision wound was created on the shaved dorsum of mice that were orally administered or not with 100 mg of CUM per kilogram body weight before partial body exposure to 10, 20 or 40 Gy given as 2 Gy/day for 5, 10 or 20 days. The wound contraction was determined periodically by capturing video images of the wound from day 1 until complete healing of wounds. Fractionated IR caused a dose-dependent delay in the wound contraction and prolonged wound healing time, whereas CUM administration before fractionated IR caused a significant elevation in the wound contraction and reduced mean wound healing time. Fractionated IR reduced the synthesis of collagen, deoxyribonucleic acid (DNA) and nitric oxide (NO) at different post-IR times and treatment of mice with CUM before IR elevated the synthesis of collagen, DNA and NO significantly. Histological examination showed a reduction in the collagen deposition, fibroblast and vascular densities after fractionated IR, whereas CUM pre-treatment inhibited this decline significantly. Our study shows that CUM pre-treatment accelerated healing of irradiated wound and could be a substantial therapeutic strategy in the management of irradiated wounds. © 2011 The Authors. © 2011 Blackwell Publishing Ltd and Inc.

Lee S.M.,Catholic Kwandong University | Tiwari D.,Mizoram University
Applied Clay Science | Year: 2012

The aim of this communication is to understand the different aspects and needs of the modification of micro and meso-porous clay or clay based materials in particular to its application in the environmental remediation technologies. The review is mainly focused on the remediation of contaminated/polluted aquatic environment because of recent global interest towards the underlying detriment of water quality around the globe and possible technological implications of these materials. The work presented here critically evaluated the role of organo-modified or inorgano-organo-clay or the clay based nano-materials/composites, which is perhaps an emerging area of nano-technology applied into the environmental remediation strategies. The modification of clay materials at the nano-scale perhaps received a greater interest in recent past as to employ it in several waste water treatment methods. Moreover, the organo-/or inorgano-organo-clay materials used in the development of the electrochemical sensors are exaggerates further, the applicability of these materials in the remote sensing of various pollutants present in the aquatic environment. © 2012 Elsevier B.V.

The aim of this study is to synthesise indigenously the hybrid materials and their efficient use to treat the wastewater contaminated with one of important micro-pollutant diclofenac. The hybrid materials are obtained modifying the commercial bentonite (B) and locally collected clay (LC) with the hexadecyltrimethylammonium bromide (HDTMA) as to obtain the organo-modified clay samples (BH and LCH). Moreover, the B and LC clay samples are pillared with aluminium and modified with the HDTMA as to obtain inorgano-organo-modified clay hybrid materials (viz., BAH and LCAH solids). The hybrid materials are characterised by the XRD (X-ray diffraction) and FT-IR (Fourier Transform Infra-Red) analytical methods and the surface morphology is obtained by the FE-SEM (Field Emission Scanning Electron Microscope) images of these solids. pHPZC (Point of Zero Charge) of these solids is obtained by acid base titrations. Further, these materials are assessed in the efficient and effective treatment of aquatic environment contaminated with diclofenac sodium under the batch and fixed-bed column reactor operations. Batch data is obtained for various physico-chemical parametric studies viz., the effect of solution pH (3.8-10.0), sorptive concentrations (1.0-20.0mg/L), and background electrolyte concentrations (0.0001-0.1mol/L NaCl). The kinetics of the uptake of diclofenac by these solids is conducted using the pseudo-first, pseudo-second and fractal-like-pseudo-second order non-linear rate equations. The rate constants along with the removal capacity are, therefore, estimated. Further, the fixed-bed column reactor operations are performed to obtain the loading capacity of column for diclofenac under the dynamic conditions. © 2014 Elsevier B.V.

Lalramliana,Mizoram University
Ichthyological Exploration of Freshwaters | Year: 2012

Schislura aizawlensis, new species, is described from Muthi River, a tributary of Tuirial River (Barak River drainage) in Mizoram, northeastern India. It is distinguished from its congeners in having 5-7 regular broad bars, dorsal side of pectoral fin with small tubercles, very low or no adipose crest on dorsal and ventral side of caudal peduncle, intestine without loop behind the stomach, and several morphometric and meristic characters. © by Verlag Dr. Friendrich Pfeil.

Rai P.K.,Mizoram University
Environmental Monitoring and Assessment | Year: 2010

Aquatic pollution pose a serious challenge to the scientific community worldwide, since lakes or reservoirs find multifarious use and most often their water is used for drinking, bathing, irrigation, and aquaculture. Nine metals and several physicochemical parameters, from four sampling sites in a tropical lake receiving the discharges from a thermal power plant, a coal mine, and a chlor-alkali industry, were studied from 2004 to 2005. Pertaining to metal pollution, the site most polluted with heavy metals was Belwadah, i.e., waters and sediments had the highest concentration of all the metals examined. The reference site was characterized by the presence of low concentrations of metals in waters and sediments. Following the water quality monitoring, 2-month field phytoremediation experiments were conducted using large enclosures at the discharge point of different polluted sites of the lake. During field phytoremediation experiments using aquatic macrophytes, marked percentage reduction in metals concentrations were recorded. The percentage decrease for different metals was in the range of 25% to 67.90% at Belwadah (with Eichhornia crassipes and Lemna minor), 25% to 77.14% at Dongia nala (with E. crassipes, L. minor and Azolla pinnata), and 25% to 71.42% at Ash pond site of G.B. Pant Sagar (with L. minor and A. pinnata). Preliminary studies of polluted sites are useful for improved microcosm design and for the systematic extrapolation of information from experimental ecosystems to natural ecosystems. © 2009 Springer Science+Business Media B.V.

Rai P.K.,Mizoram University
Environmental Monitoring and Assessment | Year: 2012

Multifaceted issues or paradigm of sustainable development should be appropriately addressed in the discipline of environmental management. Pollution of the biosphere with toxic metals has accelerated dramatically since the beginning of the Industrial Revolution. In present review, comparative assessment of traditional chemical technologies and phytoremediation has been reviewed particularly in the context of cost-effectiveness. The potential of phytoremediation and green chemicals in heavy metals management has been described critically. Further, the review explores our work on phytoremediation as green technology during the last 6 years and hand in hand addresses the various ecological issues, benefits and constraints pertaining to heavy metal pollution of aquatic ecosystems and its phytoremediation as first case study. Second case study demonstrates the possible health implications associated with use of metal contaminated wastewater for irrigation in peri-urban areas of developing world. Our researches revealed wetland plants/macrophytes as ideal bio-system for heavy metals removal in terms of both ecology and economy, when compared with chemical treatments. However, there are several constraints or limitations in the use of aquatic plants for phytoremediation in microcosm as well as mesocosm conditions. On the basis of our past researches, an eco-sustainable model has been proposed in order to resolve the certain constraints imposed in two case studies. In relation to future prospect, phytoremediation technology for enhanced heavy metal accumulation is still in embryonic stage and needs more attention in gene manipulation area. Moreover, harvesting and recycling tools needs more extensive research. A multidisciplinary research effort that integrates the work of natural sciences, environmental engineers and policy makers is essential for greater success of green technologies as a potent tool of heavy metals management. © 2011 Springer Science+Business Media B.V.

Rai P.K.,Mizoram University
International Journal of Phytoremediation | Year: 2010

The extent of Chromium (Cr) pollution in Singrauli industrial region, India was assessed and phytoremediation capacity of a small water fern, Azolla pinnata R.BR (Azollaceae) was observed to purify waters polluted by Cr under microcosm condition. Azolla pinnata endemic to India is a potential hyper-accumulator of heavy metals. During 13 days of the experiment the fern was grown in the aqueous medium containing Cr3+ and CrO4 2- ions, each in a concentration 0.5, 1.0, and 3.0 mg L-1. The presence of these ions caused a + 3.1 to -37.5% inhibition of Azolla pinnata growth in comparison to the control. After 13 days of the experiment, metal contents in the solution was decreased up to 70% (CrO4 2- 3.0 mg L1- treatment) to 88% (CrO4 2- 0.5 mg L1- treatment). In the Azolla pinnata tissues, the concentration of couple of the ionic forms of Cr under investigation ranged from 415 to 1095 mg kg1- dry mass (dm); the highest level being found for Cr (III) containing solution. © Taylor & Francis Group, LLC.

Hazarika T.K.,Mizoram University
Genetic Resources and Crop Evolution | Year: 2012

The North-eastern region of India is rich treasure of various Citrus species. A vast reservoir of Citrus diversity exists in wild, semi wild form and is found scattered here and there without commercial cultivation and much care. The edaphic and climatic set up as well as the physiographic condition of the region makes it possible to grow a number of species, landraces and probable hybrids of Citrus without any care. But of now with the population increase, changing attitude of the farmers towards some newly introduced cash crops there is genetic erosion of the valuable resources and most of them are in verge of extinction. So, it is the high time for the scientific community to exploit all the rare and endangered resources of Citrus of north eastern region and for their conservation. In addition molecular and morphological characterization of the reported germplasm, evaluation and screening against biotic and abiotic stresses should also be needed to safeguard the existing population of Citrus and for future Citrus improvement programme. © 2012 Springer Science+Business Media Dordrecht.

Singh S.S.,Mizoram University
Meccanica | Year: 2013

The problem of reflection and refraction of elastic waves for an incident transverse wave at a plane interface between two dissimilar half-spaces of thermo-elastic materials with voids has been investigated. Using the theory developed by Iesan (Acta Mech 60:67-89, 1986), the formulae corresponding to the amplitude and energy ratios of reflected and refracted elastic waves have been obtained. The results similar to Singh and Tomar (Mech Materials 39:932-940, 2007) are recovered from the present analysis. The amplitude and energy ratios are computed numerically for a particular model. © 2012 Springer Science+Business Media Dordrecht.

Vehicle derived pollutants as well as industrial emissions simultaneously release deleterious fine-grained particulates and magnetic particles into the atmosphere These magnetic particles are derived from the presence of iron (as impurities in fuels, industrial emissions, street dust, rock dust etc.), often a mix of strongly magnetic (magnetite-like) and weakly magnetic (haematite-like) iron oxides. Present review discusses the problem of particulate matter (PM) pollution, its environmental geomagnetic studies with special reference to biomagnetic monitoring through roadside plant leaves. Biomagnetic monitoring with the roadside plant leaves, is very recent thrust area in the field of PM pollution science. An overview of the researches on implications of environmental geo-magnetic studies is presented in this paper for sediments, street dust and vegetation. The concept of environmental magnetism as a proxy for atmospheric pollution levels has been reported by several researchers based on analysis of soils and street or roof dust; however, very few researches have emphasized the use of roadside plant leaves in monitoring the dust. Magnetic biomonitoring of pollutants by measurements taken from roadside tree leaves is potentially efficient and cost-effective. Finally, several case studies on biomagnetic monitoring in Indian subcontinent by our group have been mentioned in detail. Nevertheless, there is still paucity of focused research works in the multifaceted environmental dimensions of magnetic monitoring particularly biomagnetic monitoring of particulate pollution with roadside plant leaves which possess the potential to become a new frontier in the field of atmospheric science and technology. © 2013 Elsevier Ltd.

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