1-Issue 1

 Table of Contents, Vol 1, Issue 1

 

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Pharmacologically potentials of different substituted coumarin derivatives: Asif
1(1) (2015) 1-11

Abstract

Coumarin and its derivatives are widely spread in nature. Coumarin goes to a group as benzopyrones, which consists of a benzene ring connected to a pyrone moiety. Coumarins displayed a broad range of pharmacologically useful profile. Coumarins are considered as a promising group of bioactive compounds that exhibited a wide range of biological activities like anti-microbial, anti-viral, antiparasitic, antihelmintic, analgesic, anti-inflammatory, anti-diabetic, anti-cancer, anti-oxidant, antiproliferative, anti-convulsant, and antihypertensive activities etc. The coumarin compounds have immense interest due to their diverse pharmacological properties. In particular, these biological activities make coumarin compounds more attractive and testing as novel therapeutic compounds.

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Photo-degradation of monoazo dye blue 13 using advanced oxidation process: Jamal et al.
1(1) (2015) 12-16

Abstract

The high energy radiation overcome the bonding of solute in a solution and H2O2 acts as an oxidizing agent and generates a free radical in the solution which results in photo-degradation by converting the solute in to simple form and resultantly, colored substance under the effect of photo-degradation becomes colorless. The photo-degradation of monoazo dye Blue 13 in an aqueous solution was investigated using a laboratory scale UV lamp in the presence of H2O2 and for maximum degradation of dye, the  independent parameter UV power, UV exposure time, pH and H2O2 concentration were optimized. It was found that neither UV in the presence of H2O2 is able to degrade Blue 13 under optimum condition. The results revealed that the use of both UV and H2O2 have pronounced effect on the discoloration of dyes which could be used for management of textile effluents contain waste dyes. 

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Nanoscale bioactive glasses and their composites with biocompatible polymers: Khera & Iqbal
1(1) (2015) 17-34

Abstract

Nanoscale bioactive glasses and their composites with polymers gained attention of scientific community due to their biocompatibility. The combinations of bioactive glass (nanoparticles or nanofibers) with polymers have been proven good biocompatible and have been applied successfully in various fields. This review overviewed the types of bioactive glasses (silicate, phosphate and borate), compositions of various bioactive glasses, bioactivity mechanisms, characteristics, fabrication techniques. The composites containing nanoscaled bioactive glass, natural polymer/nanocomposites and nanocomposites nanofibres have also been discussed. Moreover, the future trends and challenges have been also highlighted. 

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Chemistry and antioxidant activity of plants containing some phenolic compounds: Asif
1(1) (2015) 35-52

Abstract

Natural antioxidants inhibit the adverse effects of the Reactive Oxygen Species produced in living things and enable to survive. Depending on this principle, humans started using some plant products to cure from various diseases. Natural products have proved of great health impact on human traditionally and scientifically. Moreover, the research has so far done in the field of natural antioxidants. Therefore, antioxidants have been traditionally used as well as experimentally proved beneficial. The antioxidant components of the natural products constitute the major source of human health promotion and maintenance. The nature is still the perfect source for health promotion and for the supplementation of safe drugs. Great attention is mandatory to explore many underestimated plants with highly effective antioxidant activity. Few classes of natural products have received as much attention as phenolics and polyphenols. 

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Cytotoxicity reduction of wastewater treated by advanced oxidation process: Khizar et al.
1(1) (2015) 53-59

Abstract

In this experiment the removal of these printing dyes from textile printing industry effluents was carried out by Advanced Oxidation Process (AOP) in which heterogeneous photocatalytic treatment using UV/H2O2/TiO2 of textile printing wastewater was studied. For the treatment of textile effluents different concentration of titanium dioxide (TiO2) and effect of application time of UV radiation was investigated. The degradation of treated wastewater was estimated spectrophotometrically. To check the extent of mineralization and decolorization after treatment water quality parameter such as percentage degradation, COD, BOD, TOC, pH, DO and toxicity were studied. Before treatment the values of  water quality parameters were as; COD (1950 mg/L), BOD (963 mg/L), TOC (3410 mg/L), pH (9.6) and DO (1.77 mg/L). After application of UV/H2O2/TiO2 degradation was observed to be 72% and reduction in COD, BOD, TOC were 58%, 57%, 48%, and increase in DO level was up to 49% respectively. For the evaluation of the toxicity of photo-catalyticaly treated wastewater, Allium cepa and shrimp test were also carried out before and after treatment of printing wastewater. 

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Eco-friendly and fast bromination of industrially-important aromatic compounds in water using recyclable AlBr3-Br2 system: Sharma 
1(1) (2015) 60-70

Abstract

A fast, efficient, simple, eco-friendly, regioselective, controllable and economical method for the bromination of aromatic compounds using AlBr3-Br2 system was invetigated. The direct bromination of anilines and phenols with molecular bromine in solution frequently results in polybromination, and when brominated in the existence of oxidants, they also get oxidized rather than experiencing substitutions and in some cases, require fortification of the amino (-NH2) group. 

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