Bārāmati, India
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Jadhav N.A.,Sharda University | Jadhav N.A.,Tuljaram Chaturchand College | Singh P.K.,Sharda University | Singh P.K.,Buskerud and Vestfold University College | And 2 more authors.
Nanoscale Research Letters | Year: 2014

Mesoporous ZnO nanoparticles have been synthesized with tremendous increase in specific surface area of up to 578 m2/g which was 5.54 m2/g in previous reports (J. Phys. Chem. C 113:14676-14680, 2009). Different mesoporous ZnO nanoparticles with average pore sizes ranging from 7.22 to 13.43 nm and specific surface area ranging from 50.41 to 578 m2/g were prepared through the sol-gel method via a simple evaporation-induced self-assembly process. The hydrolysis rate of zinc acetate was varied using different concentrations of sodium hydroxide. Morphology, crystallinity, porosity, and J-V characteristics of the materials have been studied using transmission electron microscopy (TEM), X-ray diffraction (XRD), BET nitrogen adsorption/desorption, and Keithley instruments. © 2014, Jadhav et al.; licensee Springer.


Pingale P.C.,Tuljaram Chaturchand College
Ceramics International | Year: 2013

Here we reported the synthesis of MgCuZn ferrite (Mg0.48Cu 0.12Zn0.40Fe2O4) by ceramic and self-sustaining auto-combustion (sucrose) methods. Required oxides in powder form were processed (hand mill=3 h, pre-sinter=600 °C for 180 min and final sinter=910 °C for 9 h) to obtain the ferrite sample through the ceramic methods. Whereas, aqueous metal nitrates along with the sucrose as fuel were processed (at 200 °C, final sinter=600 °C for 180 min) to obtain ferrite product via the auto-combustion route. As-synthesized ferrite samples were then subjected to crystallographic, structural and magnetic investigations by techniques viz. X-ray diffraction, IR spectroscopy and B-H measurements. Purity and phase formation were confirmed by XRD examinations. Cation redistribution was also suggested by XRD analyses which supplement the variation of magnetic properties. IR absorption bands were found to be in the expected high frequency range (574.95 cm-1 and 582.39 cm-1) and low frequency range (≈431 cm-1) which fortifies the spinel phase formation. Boost in magnetic performance of sucrose methods' yield was observed owing to reduced porosity and increased surface area. Thus, MgCuZn ferrite prepared via the self-sustaining auto-combustion route has superior magnetic properties at relatively low sintering temperature and can be employed in multi-layer chip application readily. © 2012 Elsevier Ltd and Techna Group S.r.l.


Kushare S.K.,Science and Commerce College | Shaikh V.R.,North Maharashtra University | Terdale S.S.,University of Pune | Dagade D.H.,Shivaji University | And 2 more authors.
Journal of Molecular Liquids | Year: 2013

Osmotic coefficients measured by vapor pressure osmometry are reported for aqueous polyethylene-glycol (PEG-400, PEG-1000, and PEG-4000) solutions. The derived properties such as activity and activity coefficients have been studied as a function of solute concentration. These data along with the partial molar volume data have been analyzed with the help of molecular theories such as Flory-Huggins, McMillan-Mayer, and Kirkwood-Buff. The application of these theories enabled us to obtain second virial coefficients of PEG's, the number of binding sites, χ12 (Flory-Huggins interaction parameter), and the Kirkwood-Buff (KB) integrals, defined by the equation: Gij = ∫ 0. © 2013 Elsevier B.V. All rights reserved.


Kaplan M.,University Utrecht | Cukkemane A.,University Utrecht | Cukkemane A.,Tuljaram Chaturchand College | Van Zundert G.C.P.,University Utrecht | And 8 more authors.
Nature Methods | Year: 2015

Studying biomolecules at atomic resolution in their native environment is the ultimate aim of structural biology. We investigated the bacterial type IV secretion system core complex (T4SScc) by cellular dynamic nuclear polarization-based solid-state nuclear magnetic resonance spectroscopy to validate a structural model previously generated by combining in vitro and in silico data. Our results indicate that T4SScc is well folded in the cellular setting, revealing protein regions that had been elusive when studied in vitro. © 2015 Nature America, Inc. All rights reserved.


Kalange A.E.,Tuljaram Chaturchand College | Mahale B.P.,University of Pune | Aghav S.T.,University of Pune | Gangal S.A.,University of Pune
Proceedings - ISPTS-1, 1st International Symposium on Physics and Technology of Sensors | Year: 2012

Diagnosis according to Ayurveda is to find the root cause of a disease. Out of the eight different kinds of examinations Nadi-Pariksha (pulse examination) is important. Nadi-pariksha is done at the root of the thumb by examining the radial artery using three fingers. The features associated with the pulse pressure signals are important from diagnostic point of view. Ancient Ayurveda identifies the health status by observing the wrist pulses in terms of 'Vata', 'Pitta' and 'Kapha', collectively called as tridosha, as the basic elements of human body and in their combinations. © 2012 IEEE.


Gajbhiye M.H.,University of Pune | Sathe S.J.,Tuljaram Chaturchand College | Marathe R.J.,Shardabai Pawar Mahila Mahavidyalaya | Deshmukh R.B.,Shardabai Pawar Mahila Mahavidyalaya
Research Journal of Biotechnology | Year: 2013

In all, 200 antifungal Bacillus spp. (AFB) were isolated from aerial surfaces of pomegranate plant and 50 inhibited the growth of major fruit rot pathogens viz., Phomopsis varsoniana, Aspergillus flavus, A. clavatus, Beltraniella humicola, Fusarium graminearum and Rhizopus stolonifer. The AFB isolates exhibited maximum antifungal activity at pH 7 to 9 at 30°C and 40°C in malt extract broth. The most potent isolate AFB22 was identified as B. subtilis by 16S rDNA sequencing. Crude antifungal compound was recovered from isolate, after 80% saturation by ammonium sulphate, dialysis and freeze drying, was heat stable but sensitive to proteolytic enzymes and low pH. This isolate also demonstrated plant growth promoting traits like phosphate solubilization and production of indole acetic acid, siderophore and chitinase. Cells and cell free supernatant (CFS) of the AFB22 prevented rotting in pomegranates when challenged with spores of P. varsoniana. According to Kaplan-Meier procedure of survival analysis and Tarone-Ware statistics test, the incidence of rot was significantly lower (P < 0.05) in pomegranates treated with cells and CFS, when compared with fruits inoculated with pathogen only. Mean survival time of pomegranates was 6.74, 6.68 and 4.33 days in treatments of cells, CFS and fungal pathogen, respectively. This study demonstrates the bio-protection of pomegranates by B. subtilis AFB22 from the fungal fruit rot pathogens, an alternative to synthetic fungicides.


Joshi A.B.,University of Pune | Kalange A.E.,University of Pune | Kalange A.E.,Tuljaram Chaturchand College | Bodas D.,Agharkar Research Institute | Gangal S.A.,University of Pune
Materials Science and Engineering B: Solid-State Materials for Advanced Technology | Year: 2010

A radial artery pulse is used to diagnose human body constitution (Prakruti) in Ayurveda. A system consisting of piezoelectric sensor (22 mm × 12 mm), data acquisition card and LabView software was used to record the pulse data. The pulse obtained from the sensor was noisy, even though signal processing was done. Moreover due to large sized senor accurate measurements were not possible. Hence, a need was felt to develop a sensor of the size of the order of finger tip with a resonant frequency of the order of 1 Hz. A micromachined pressure sensor based on piezoelectric sensing mechanism was designed and simulated using CoventorWare. Simulations were carried out by varying dimensions of the sensor to optimize the resonant frequency, stresses and voltage generated as a function of applied pressure. All simulations were done with pressure ranging of 1-30 kPa, which is the range used by Ayurvedic practitioners for diagnosis. Preliminary work on fabrication of such a sensor was carried out successfully. © 2010 Elsevier B.V. All rights reserved.


PubMed | University of Pune and Tuljaram Chaturchand College
Type: Journal Article | Journal: Indian journal of microbiology | Year: 2016

A new fungal pathogen was isolated from rotten pomegranates collected from the orchards of different parts of Maharashtra. The pathogen was morphologically identified as Chaetomella raphigera followed by sequencing of ITS and D1/D2 hypervariable region of LSU (28S) of rRNA gene. The pathogen produced pectinase, cellulase, xylanase and protease in liquid medium at a concentration of 71, 13.8, 54.3 and 7 U/ml respectively. Enzyme activity was also determined during pathogenesis in the tissues artificially infected by C. raphigera. Xylanase activity was maximum (25.1U/g) followed by pectinase (19.2U/g) and cellulase (1.5U/g), whereas, protease activity was unnoticed. There was significant correlation (P<0.05) between disease rating scale and pectinase, xylanase and cellulase activity in infected tissues. This indicates the simultaneous production of hydrolytic enzymes that aids in necrosis of fruit tissues. The elevated levels of these enzymes in infected tissues as compared with control suggest their possible role in pathogenesis. Thus, pectinase, cellulase and xylanase produced by C. raphigera acts as major virulence factors in the development of fruit rot in pomegranates. This is a first report of fungal fruit rot caused by C. raphigera in pomegranate.


Deshmukh L.P.,University of Solapur | Pingale P.C.,University of Solapur | Pingale P.C.,Tuljaram Chaturchand College | Kamble S.S.,University of Solapur | Maldar N.N.,University of Solapur
Composites Part B: Engineering | Year: 2016

ZnSe and Zn1-xCrxSe (0 ≤ x ≤ 0.35) composite thin films were deposited by a chemical growth technique. The energy dispersive spectroscopy, X-ray diffraction analysis, scanning electron and atomic force microscopies, optical and electrical transport techniques were used to study the characteristic properties of thin composite films. An EDS analysis showed that the expected elements (Zn, Se and Cr) exist in the thin solid films. XRD analysis confirmed hexagonal wurtzite structure with dominant preferred orientation along <100>. SEM studies revealed that, both ZnSe and Zn1-xCrxSe films grow in a definite fashion. AFM images showed formation of almost spherical crystallites of ZnSe and Zn1-xCrxSe. The optical bandgaps of Zn1-xCrxSe films found to be decreased from 2.71 eV to 2.53 eV for the change of x from 0 to 0.05. The electrical conductivity of Zn1-xCrxSe films found to be increased continuously with x up to 0.05 and then decreased for higher x-values. © 2015 Elsevier Ltd.


Vasantrao K.V.,Tuljaram Chaturchand College
Advances in Intelligent Systems and Computing | Year: 2016

Globalization and technical revolution are raising several challenges to the software development sector. Over the past 50 years, software has evolved as a specialized problem-solving and information analysis tool to an industry, but now it is facing multiple challenges. The objective of this study is to landscape current knowledge, in terms of productivity and find out its impact on the software development. To resolve such problems, “Software Development Practitioner” needs to find out a flexible way (Jugaad) for development. “Jugaad” is the Indian common man’s philosophy to achieve the dream goal within the available resources. The researcher has made earnest attempts to study the steps to be undertaken to make the flexible module. The goal of this paper is to rectify the present hurdles and hassles in development approaches by representing “Selection of Software Development Methodologies Advisory System” on the basis of reference of fuzzy expert system. © Springer India 2016.

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