Shri Shivaji Mahavidyalaya

Solāpur, India

Shri Shivaji Mahavidyalaya

Solāpur, India
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Ghadage P.A.,University of Solapur | Ghodake U.R.,Shri. Shivaji Mahavidyalaya | Kambale R.C.,University of Pune | Suryavanshi S.S.,University of Solapur
AIP Conference Proceedings | Year: 2017

The rare earth Dy3+substituted BiFeO3 (BFO) nanoparticles with general formula Bi1-xDyxFeO3 were successfully synthesized by glycine assisted auto-combustion route. X-ray diffraction confirms the phase transformation from rhombohedral lattice symmetry to orthorhombic lattice symmetry for x ≤ 10 mol.%. Lattice constant was calculated by using the rhombohedral (hexagonal) formula. The dielectric constant of pure BFO is found to increase while the dielectric loss decreases due to Dy3+substitution which are attributed to the reduction in oxygen vacancies. Composition with x = 25 mol. % exhibits high resistivity and low dielectric loss which will be suitable for high resonant circuits. © 2017 Author(s).


Ghodake U.R.,Shri Shivaji Mahavidyalaya | Chikhale L.P.,University of Solapur | Suryavanshi S.S.,University of Solapur
AIP Conference Proceedings | Year: 2017

Mixed zinc substituted magnesium ferrites having the chemical formula Mg1-xZnxFe2O4 (where x = 0.4, 0.5 and 0.6) were synthesized by co-precipitation method using oxalate precursors. The studies of x-ray diffraction, scanning electron microscopy and energy dispersive x-ray spectroscopy were confirmed the crystal structure, phase formation and morphology of sintered spinel ferrite.XRD study reveals that the completion of the lattice formation without any impurity phases. The crystallite size is found to be in 39.17 nm to 21.29 nm range. The lattice parameter (a) was found to increase linearly with Zn2+ content (x). Scanning electron micrographs revealed that an increase in the grain size (D) with increase in Zn2+ content. EDAX shows the presence of Mg2+, Zn2+, Fe3+ and O2- ions as per the stoichiometry. Lattice parameter, x-ray density, the unit cells volume and the hopping lengths for octahedral (LB) and tetrahedral (LA) sites were calculated. © 2017 Author(s).


Dulange S.M.,Adarsh Mahavidyalaya | Thorat P.R.,Shri Shivaji Mahavidyalaya
International Journal of Pharmaceutical Sciences Review and Research | Year: 2015

In the twenty eight moths consistent study (September 2011 to December 2013) eighty three patients those were suffering from postoperative wound infections were studied for isolation of major pathogens from Omerga region (Maharashtra, India). Patients were showing clinical symptoms, wound discharge and/or incriminated organisms after surgical operations; those were mostly infected by Escherichia coli (20.5%), Klebsiella pneumoniae (14.45%), Staphyloccus aureus (18.07%), Acinetobacter baumannii (13.25%) and Pseudomonas aeruginosa (12.08 %). Antimicrobial Susceptibility Testing (AST) with isolated Pseudomonas aeruginosa (12.08%) were showed surprising results with respect to drug resistance. Hundred percent resistance was observed for Moxifloxacin, Cefprozil, Cefirome, Gatifloxacin, Ampicillin / Sulbactum, Cefotaxime, Tetracycline, Tigecycline antibiotics and >75% resistance to Ceftrixone, Levofloxacin, Trimethoprim / sulfamethoxazole, Ticarcillin / Clavulanic acid, Cefpodoxime, Sparfloxacin, while Cefoperazone / Sulbactam, Colistin, Meropenem, Pipercillin / Tazobactum were showing >30% to <40% resistance hence these antibiotics can be used for treatment of postoperative wound infection caused by Pseudomonas aeruginosa. © 2015, Global Research Online. All rights reserved.


Kulal S.R.,Metal Oxide Research Laboratory | Khetre S.S.,Metal Oxide Research Laboratory | Jagdale P.N.,Metal Oxide Research Laboratory | Gurame V.M.,Shri Shivaji Mahavidyalaya | And 4 more authors.
Materials Letters | Year: 2012

Dysprosium doped Co-Zn ferrites were synthesized by sol-gel auto combustion method. These synthesized compounds were characterized by using XRD, SEM, FTIR, EDS, TGA-DTA and TEM. TGA weight loss in the region of 100-200°C and this loss is due to autocatalytic oxidation reduction reactions of nitrates with glycine. The composition Co 0.5Zn 0.5Fe 2-xDy xO 4 (x=0.075) shows fibrous reticulated mesh like morphology. The average grain size increases with increasing the Dy content in the Co-Zn ferrite. The XRD study of Dy doped Co-Zn ferrite shows in Cubic spinel phase. Particle size obtained from TEM analysis was found to be 30-40 nm. The FTIR spectra showed the characteristic of two strong absorption bands at 560 cm -1 corresponds to intrinsic stretching vibrations of the metal at the tetrahedral site and lowest band is observed at 455 cm -1 corresponds to octahedral site. © 2012 Elsevier B.V. All rights reserved.


Bismarck Brown Y was selected as model textile dye. The fungal strain Alternaria brassicae TSF -07 isolated from textile wastewater sludge was screened for decolourization of Bismarck Brown Y. Optimization was carried out with respect to carbon source, nitrogen source, pH, inoculums size, incubation period and temperature. It was found that the optimum inoculum size, pH and temperature were 2.5%, 5.0 and 350C respectively. Fructose at 1.0 % and yeast extract at the concentration of 0.1 % was found to give maximum decolourization. Further, it was found that the culture has brought about almost 96.03% decolourization of a recalcitrant dye, Bismarck Brown Y (100 mgL-1) at shaking condition within 3 days. This isolate also showed the degradation as evidenced from the reduction in the term of COD mg/L to the extent of 68.09 % within three days. The biodegradation was monitored by UV-Vis and FTIR spectroscopy. This study revealed the enormous biodegradation abilities of indigenous microbial flora.


Sowani H.M.,Walchand Center for Biotechnology | Thorat P.,Shri Shivaji Mahavidyalaya
OnLine Journal of Biological Sciences | Year: 2012

Problem statement: In the present study, Staphylococcus aureus a causative agent of food poisoning is selected as a test organism to study the antimicrobial effect of bacteriocin. S. aureus produces number of exotoxins and enterotoxins which enters the body via contaminated food causing illness. Approach: In this case the use of antibiotics is one of the ways of treatment, but in addition to this if we advise such patients to consume the carrot kanji then it will cause better effect because carrot kanji is the naturally fermented food beverage consisting of microflora mainly the Lactobacilli. Results: The Lactobacilli have ability to produce antimicrobial compounds called bacteriocin. Isolation of bacteriocin was carried out from the naturally fermented carrot kanji. The bacteriocin produced by Lactobacilli was dialysed and used for the further studies. The well diffusion method is used to study the antimicrobial activity, effect of temperature, pH, enzymes on bacteriocin. From the diameter of zone of inhibition the activity of bacteriocin was determined. The sensitivity of bacteriocin at different pH range showed that at neutral pH the diameter of inhibition zone was greater than that at alkaline as well as acidic pH. Upto 100°C the bacteriocin activity was 80% but as temperature range increased upto 121°C it reduced sharply to 28%. Conclusion/Recommendations: In addition to this the effect of alpha amylase, trypsin, catalase enzyme on bacteriocin activity was also studied which shows positive results with alpha amylase, reduced activity with trypsin and catalase remained unaffected. © 2012 Science Publications.


Mohite R.M.,University of Solapur | Kothawale R.R.,Shri Shivaji Mahavidyalaya
Indian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry | Year: 2015

Al-doped zinc oxide thin films have been prepared by chemical bath deposition using aqueous zinc nitrate solution and characterized by X-ray diffraction, scanning electron microscope, energy dispersive spectroscopy and d.c. resistivity measurements. I-V measurements have been made in dark and under UV-light illumination. High conductivity and transparency of these thin films make them suitable for transparent conductive oxide and window layer applications in solar cells. This material also has potential use in optoelectronic devices such as photo-detectors, photonic crystals, ultraviolet light sensors and light emitting diodes. © 2015 Indian Journal of Chemistry.


Shertate R.S.,Shri Shivaji Mahavidyalaya | Thorat P.,Shri Shivaji Mahavidyalaya
OnLine Journal of Biological Sciences | Year: 2012

Problem statement: The textile industries use different types of dyes in their processing units which are liberated in natural marine water bodies. This release of dyes in turn affect the marine flora and fauna very adversely. Approach: The release of textile dyes into the environment is a matter of concern due to the toxicity, mutagenicity, carcinogenicity and xenobiotic nature. Hence, considerable attention has been given in determining the ability of marine microorganism in decolorization and degradation of textile dyes. Results: The present study deals with the decolorization of Mordant Orange-1 was carried out using the acclimatized Marinobacter algicola MO-17 isolated from natural marine environment. The acclimatized strain was capable of decolorizing 800 μg mL -1 of the dye at high salt concentration (12%) in 24 h. The percent decolorization of the dye was moderated by spectroscopy at 385 nm (λmax). Conclusion/Recommendations: The spectrophotometric analysis showed 78.78% decolorization in Nutrient Broth and 76.78% decolorization in Half Strength Nutrient Broth. The percent Chemical Oxygen Demand (COD) reduction of the dye by the strain was 90%. From the study performed, we conclude that, this acclimatized strain can prove better option for bioremediation of textile dyes in wastes containing high salts and in marine environment. © 2012 Science Publications.


Shertate R.S.,Shri Shivaji Mahavidyalaya | Thorat P.,Shri Shivaji Mahavidyalaya
American Journal of Environmental Sciences | Year: 2014

Presence of huge amount of salts in the wastewater of textile dyeing industry is one of the major limiting factors in the development of an effective biotreatment system for the removal of dyes from textile effluents. Large number of textile industries are located on the coastal areas due to ease of transport to the various places in world and help in building nations economy, but on the contrary the effluents released from these industries are proving a great problem for the marine life. Therefore, industrial effluents containing dyes must be treated before their safe discharge into the environment. There are various physiochemical methods are conventionally used. These methods are effective but quite expensive leading to the production of solid sludge. Bacterial spp. capable of thriving under high salt conditions could be employed for the treatment of saline dye-contaminated textile wastewaters. Most of the Scientists used chemical coagulation, Flocculation and Precipitation techniques for the removal of dye colors from waste waters. But this method is not cost beneficial as it generates huge amount of Sludge and to dispose the sludge is major problem. The physical methods are also not cost effective. So only biological treatment using acclimatized microorganisms could remove 99-100% dye colour from wastewater. Hence now a day most of the workers concentrated on biotransformation of textile azo dyes by adapted organisms. The use of co substrates also slightly increased the decolorization of dye solution. Some scientists showed that the products of dye degradation are not toxic to biological system. Products formed can be determined by Gas Chromatography and Mass Spectroscopy (GC-MS) technique, Fourier Transform Infra Red (FTIR) etc. © 2014 Shertate and Thorat.


Shertate R.S.,Shri Shivaji Mahavidyalaya | Thorat P.R.,Shri Shivaji Mahavidyalaya
International Journal of Pharma and Bio Sciences | Year: 2013

A marine bacterium capable of degrading the textile azo dye Direct Red 5B was isolated from natural environments on nutrient medium containing the high salinity and the dye. It was identified as Marinobacter sp. DR-7 (Accession No. HF558993) on the basis of biochemicals and phylogenetic analysis based on 16s rRNA gene sequence. The decolorization of the azo dye Direct Red 5B in nutrient broth and half strength nutrient broth having 8.0% salt concentration was up to 94.00% and 92.00% respectively in 24 hours. The degradation products formed were analyzed by GC-MS technique and it was found that culture degraded Direct Red 5B to the products having molecular weights 98, 99, 100, 149, 150, 149, 150, 149, 150, 223, 149, 150, 57, 113, 149, 167 and 279.The isolate reduced the COD of the dye up to 70%.

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