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Singh A.K.,National Institute of Technology Hamirpur | Siddhartha,National Institute of Technology Hamirpur | Gupta P.,Mohammad Ali Jauhar University | Singh P.K.,National Institute of Technology Hamirpur
Silicon | Year: 2016

This article presents the evaluation of mechanical and erosive wear characteristics of bi-directional E-glass fiber based vinyl ester composites filled with TiO2 (titanium oxide) and ZnO (zinc oxide) of 10 wt.% and 20 wt.% respectively. The mechanical characterization of these composites is performed. The erosion rates of these composites have been evaluated at different impingement angles (30 ∘, 60 ∘ and 90 ∘). The particles used for the erosion measurements were silica sand with the diameters of 300, 425 and 600 μm and impact velocities of 30, 50 and 70 m/s were used. A plan of experiments, based on the Taguchi design, was performed to acquire data in a controlled way. An orthogonal array L27 (3 13) and Analysis of variance (ANOVA) have been applied to investigate the influence of process parameters on the erosive wear behaviour of these composites. The tensile strength of composite specimens is found to decrease with filler loading while hardness, flexural strength, inter-laminar shear strength (ILSS) and impact strength increase. TiO2 filled composites were observed to perform better than ZnO filled composites under erosive wear situations. The dominant wear mechanism is studied on the basis of micrographs of the worn-out surface of composite materials. Performance optimization of composites is done by using the VIKOR method. © 2016 Springer Science+Business Media Dordrecht


Khan M.S.,Jamia Hamdard University | Khan M.S.,Mohammad Ali Jauhar University | Parveen R.,Jamia Hamdard University | Mishra K.,Defence Institute of Physiology and Allied science | And 2 more authors.
Journal of Pharmacy and Bioallied Sciences | Year: 2015

Aim: Wheatgrass (WG) is the shoot of Triticum aestivum Linn. belongs to the family Gramineae, and possess high chlorophyll content and essential vitamins, minerals, vital enzymes, amino acids, dietary fibers etc., It has been shown to possess anti-cancer, anti-ulcer, antioxidant, and anti-arthritic activity due to the presence of biologically active compounds, and minerals. Therefore, in the present study, high-performance thin layer chromatography (HPTLC), and high-performance liquid chromatography (HPLC) methods for qualitative and quantitative analysis have been proposed, which will help in quality evaluation of wheat grass extract. Materials and Methods: Samples for analysis were prepared in methanol and water simply by sonication. These were applied on pre-coated silica plate and chromatograms were developed using toluene: Ethyl acetate: Formic acid. HPLC analysis was done on Waters HPLC system using water, methanol, and acetonitrile as mobile phase. Merck C18 column has been used. Results: HPTLC finger printing of alcoholic extracts of WG was carried out and found 10-11 spots at different wavelengths 254, 366, and 435 nm. HPLC fingerprinting produced 22 peaks at 256 nm. Quantitative HPTLC analysis was done to determine the gallic acid content, and was found to be 0.077% w/w in aqueous extract. By HPLC, the content of gallic acid and rutin was found to be 0.07%, and 0.04% w/w in aqueous extract of WG. Conclusion: The developed HPLC and HPTLC fingerprinting method can be used for the quality control, and standardization of WG and its extracts used as nutritional supplement. © 2015 Journal of Pharmacy And Bioallied Sciences.


Khan M.S.,Jamia Hamdard University | Khan M.S.,Mohammad Ali Jauhar University | Parveen R.,Jamia Hamdard University | Mishra K.,Defence Institute of Physiology and Allied science | And 2 more authors.
Journal of Pharmacy and Bioallied Sciences | Year: 2015

Background: Nucleosides are supportive in the regulation and modulation of various physiological processes in body, they acts as precursors in nucleic acid synthesis, enhance immune response, help in absorption of iron and influence the metabolism of fatty acids. Cordyceps sinensis and Ganoderma lucidum are well-known for its use in traditional medicine of China, Nepal and India. They are rich in nucleosides such as adenine, adenosine, cordycepin, etc. Hence, a simple, economic and accurate high-performance liquid chromatography (HPLC) analytical method was proposed for determination of adenine and adenosine for the quality control of plants. Materials and Methods: Chromatographic experiments were conducted on YL9100 HPLC system (South Korea). Reversed-phase chromatography was performed on a C18 column with methanol and dihydrogen phosphate as the mobile phase in isocratic elution method at a flow rate of 1.0 mL/min. Detection was carried out at 254 nm, which gives a sharp peak of adenine and adenosine at a retention time of 6.53 ± 0.02 min and 12.41 ± 0.02, respectively. Results and Discussion: Linear regression analysis data for the calibration plot showed a good linear relationship between response and concentration in the range of 25-200 μg/mL for adenosine and 100-800 μg/mL for adenine with regression coefficient of 0.999 and 0.996, respectively. The adenine was found 0.16% and 0.71% w/w in G. lucidum and in C. sinensis, respectively, and adenosine was found to be 0.14% w/w in G. lucidum whereas absent in C. sinensis. Conclusion: The developed HPLC method for the quantification of adenosine and adenine can be used for the quality control and standardization of crude drug and for the different herbal formulations, in which adenine and adenosine are present as major constituents. The wide linearity range, sensitivity, accuracy, and simple mobile phase imply the method is suitable for routine quantification of adenosine and adenine with high precision and accuracy. © 2015 Journal of Pharmacy And Bioallied Sciences.


Anwar N.,Hamdard University | Khan M.S.,Hamdard University | Khan M.S.,Mohammad Ali Jauhar University | Kabir H.,Hamdard University | Ahmad S.,Hamdard University
Journal of Pharmacy and Bioallied Sciences | Year: 2015

Background: Azaraqi (Strychnos nux-vomica, Loganiaceae) has been the important Unani medicine since long time as a stimulant, anti-inflammatory, and blood purifier. It has been used very frequently by the Unani practitioner. But the Unani system recommends application of azaraqi in medicine only after its detoxification (tadbeer) may be because of the presence of its deadly poisonous alkaloids (strychnine and brucine). In the present investigation, an attempt has been made to quantify the actual content of their toxic alkaloids before and after the tadbeer. Materials and Methods: A sensitive high-performance thin layer chromatographic (HPTLC) method has been developed for estimation of strychnine and brucine in different samples of azaraqi before and after tadbeer. Precoated HPTLC silica gel plates were used as stationary phase and (toluene: Ethyl acetate: Dietylamine 7:2:1 v/v/v) was used as mobile phase. Result: The Rfvalue of strychnine and brucine was found as 0.53 and 0.41, respectively. Detection and quantification were performed by densitometry at 270 nm. The calibration plot was linear in the range of 50-1000 ng of strychnine and brucine, respectively, with the correlation coefficient (r2) 0.993 and 0.991 for strychnine and brucine, respectively, which confirms good linearity. The content of strychnine was 0.175, 0.07, 0.18, 0.051, and 0.075% w/w whereas brucine was 0.16, 0.117, 0.061, 0.045, and 0.057 in crude azaraqi, azaraqi without outer cover, azaraqi outer cover only, azaraqi mudabbar and azaraqi mudabbar by fried in ghee, respectively. Conclusion: The detoxification results in sharp decrease in content of toxic metabolites. The process by boiling in milk was found much effective but tedious as compare to frying method. © 2015 Journal of Pharmacy And Bioallied Sciences.


Nizami G.,Bareilly College | Gargand P.,Mohammad Ali Jauhar University | Ahmad S.,Mohammad Ali Jauhar University
Oriental Journal of Chemistry | Year: 2013

The Schiff bases 5-methyl2-hydroxyacetophenonemorpholine-N-thiohydrazide, 5-methyl2-hydroxyacetophenoneantipyrine 5-chloro2-hydroxyacetophenonemorpholine- N-thiohydrazone has reacted with MnII and MnIII to form co-ordination compounds having general formula [M (C14H19O2N 3S) 3H2O] Cl; [M (C14H19O 2N3S).3H2O]; [M (C20H 20N3O2)2] Cl; [M (C 20H20N3O2)2];[M(C 13H14O2N3SCl).3H2O]Cl and [M(C13H14O2N3SCl].3H2O] respectively. Where M=Mn III and Mn II. The adducts have been characterized on the basis of elemental analyses molar conductance, I.R , visible spectra, magnetic susceptibility measurement and TGA. The ligands behave in dibasic tridentate manner in 5-methyl2-hydroxyacetophenon emorpholine-N-thiohydrazone and 5-chloro2-hydroxyacetophenonemorpholine-N-thiohydrazone. While5-methyl2hydroxyacetophenoneantipyrine behaves in monobasic tridentate manner. All these compounds are paramagnetic in nature and have octahedral geometry.


Mohammad Ali Jauhar University | Entity website

Results - Even Semesters Even Semester Results declared, please navigate below to check your result


Mohammad Ali Jauhar University | Entity website

Mohammad Azam Khan A Dream Fullfilled Dreaming is a common and pleasant attribute of human nature, but only few persons are fortunate enough to have their dreams come true, particularly in their lifetime. I am one of those lucky persons who have seen with their own eyes the transformation of their sweet dreams into reality ...


Mohammad Ali Jauhar University | Entity website

Inauguration of New ATM Machine by Honorable Azam Khan


Mohammad Ali Jauhar University | Entity website


Mohammad Ali Jauhar University | Entity website

AboutRampur Rampur is a city of state Uttar Pradesh located between longitudes 79 05' E and Latitude 28 48' N, surrounded by Udham Singh Nagar in north, Bareilly in east, Moradabad in west and Badaun in south. One of the famous tourist spot, Nainital is just at an aerial distance of about 40 km from Rampur and during rainy season the mountain ranges of Nainital can be seen in the North direction ...

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