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S.V. Jagtap

Bio: S.V. Jagtap is an academic researcher. The author has contributed to research in topics: Nanocrystalline material & Nanomaterials. The author has an hindex of 4, co-authored 9 publications receiving 126 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, the structural and gas sensing properties of synthesized nanomaterials were studied by X-ray diffraction measurement (XRD) and transmission electron microscope (TEM) and the results revealed that the particle size is in the range of 30-35nm for Mn-Zn ferrite with good crystallinity.

74 citations

Journal ArticleDOI
15 May 2009-Talanta
TL;DR: The structural, electrical and sensing characteristics of the LaCo(x)Fe(1-x)O(3) system were investigated and the sensor shows high response towards ammonia gas in spite of other reducing gases when x=0.8.

31 citations

Journal ArticleDOI
TL;DR: In this article, the structural and gas sensing properties of nanocrystalline La0.7Pb0.4Ni0.6O3 powder were studied by using X-ray diffraction and transmission electron microscopy (TEM).
Abstract: In this paper, the structural and gas sensing properties of nanocrystalline La0.7Pb0.3Fe0.4Ni0.6O3 was prepared by a sol–gel citrate method. The structural characteristics of the material were studied by using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD pattern shows a nanocrystalline solid solution of La0.7Pb0.3Fe0.4Ni0.6O3 with a perovskite phase. The gas sensing properties were studied for different reducing gases such as H2S, ethanol, CO and LPG. The La0.7Pb0.3Fe0.4Ni0.6O3 powder showed large response to H2S gas at an operating temperature 250 °C. Further improvement in response was achieved by the addition of 0.5 wt% Pd to La0.7Pb0.3Fe0.4Ni0.6O3. The sensor showed a good response to 150 ppm H2S gas at an operating temperature 200 °C.

24 citations

Journal ArticleDOI
TL;DR: The major problem in the cancer chemotherapy is the toxicity of the established drugs as mentioned in this paper, which can lead to death, and therefore, many studies have been conducted to determine the efficacy of these plant products in treating cancers in humans.
Abstract: Cancer is the abnormal growth of cells in our bodies that can lead to death. Cancer is a leading cause of mortality in the world and it's the cause of more than 20% of all deaths. The major problem in the cancer chemotherapy is the toxicity of the established drugs. Some of the natural product extracts are capable of preventing or inhibiting the process of carcinogenesis. Thousands of herbal and traditional compounds are being examine by many searchers worldwide to validate their use as anti-cancerous drugs. Medicinal plants and their use in various traditional systems of medicine are indeed awe-inspiring. General public consider herbal remedies to be safe, as it causes less side-effects and less likely to cause dependency. Various dietary agents that interfere with these stages of cancer, thus blocking malignancy and thus Cancer induction, growth, and progression are multi-step events and numerous studies have beendemonstrated. Fruits and vegetables contains untapped reservoir ofvarious nutritive and non-nutritive phytochemicals with potential cancer chemo-preventiveactivity. Plants have been used for treating diseases since time immemorial. More than 50% of modern drugs in clinical use are of natural products. Study is required to determine the efficacy of these plant products in treating cancers in humans.

7 citations

Journal ArticleDOI
15 Mar 2009-Talanta
TL;DR: Incorporation of palladium (Pd) improves the gas response, selectivity, response time and reduced the operating temperature from 260 to 220 degrees C for H(2)S gas.

7 citations


Cited by
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01 Sep 1955
TL;DR: In this paper, the authors restrict their attention to the ferrites and a few other closely related materials, which are more closely related to anti-ferromagnetic substances than they are to ferromagnetics in which the magnetization results from the parallel alignment of all the magnetic moments present.
Abstract: In this chapter, we will restrict our attention to the ferrites and a few other closely related materials. The great interest in ferrites stems from their unique combination of a spontaneous magnetization and a high electrical resistivity. The observed magnetization results from the difference in the magnetizations of two non-equivalent sub-lattices of the magnetic ions in the crystal structure. Materials of this type should strictly be designated as “ferrimagnetic” and in some respects are more closely related to anti-ferromagnetic substances than they are to ferromagnetics in which the magnetization results from the parallel alignment of all the magnetic moments present. We shall not adhere to this special nomenclature except to emphasize effects, which are due to the existence of the sub-lattices.

2,659 citations

Journal ArticleDOI
TL;DR: In this paper, the authors extensively review the development of semiconductor metal oxide gas sensors for environmentally hazardous gases including NO2, NO, N2O, H2S, CO, NH3, CH4, SO2 and CO2.
Abstract: This article extensively reviews the recent development of semiconductor metal oxide gas sensors for environmentally hazardous gases including NO2, NO, N2O, H2S, CO, NH3, CH4, SO2 and CO2. The gas sensing properties of differently-prepared metal oxides and loaded metal oxides towards nine environmentally hazardous gases have been individually compared and digested. Promising materials for sensitive and selective detection of each hazardous gas have been identified. For instance, unloaded WO3 nanostructures are the most promising candidates for NO2 sensing while metal catalyst loaded WO3 and gold-loaded SnO2 sensors are among the most effective for NO and N2O sensing, respectively. Moreover, related gas-sensing mechanisms are comprehensively discussed.

999 citations

Journal ArticleDOI
TL;DR: This paper presents a meta-analyses of the chiral stationary phase transition of Na6(CO3)(SO4)/ Na2SO4 using a high-performance liquid chromatography apparatus for the determination of Na2CO3(SO4).
Abstract: Xin Zhou,†,‡ Songyi Lee,† Zhaochao Xu,* and Juyoung Yoon*,† †Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 120-750, Republic of Korea ‡Research Center for Chemical Biology, Department of Chemistry, Yanbian University, Yanjii 133002, People’s Republic of China Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Shahekou, Dalian, Liaoning, People’s Republic of China

631 citations

Journal ArticleDOI
TL;DR: A review of publications on nanomaterials in the biennium 2008-2010 includes the most recent publications in risk assessment/toxicity, characterization and stability, toxicity, fate and transport of NMs in terrestrial ecosystems, and new ENMs.

522 citations

Journal ArticleDOI
TL;DR: In this article, the analysis of various parameters of reaction which could be used for better understanding of synthesis process and control of microstructure and property of spinel ferrite nanopowder products was the main objective of this review article.
Abstract: Recent developments and trends of sol-gel auto-combustion method for spinel ferrite nanomaterial synthesis are briefly discussed and critically analyzed. The analysis of various parameters of reaction which could be used for better understanding of synthesis process and control of microstructure and property of spinel ferrite nanopowder products was the main objective of this review article. Special attention was paid to variety of particle size and phase purity. For these purposes the correlation between complexant, oxygen balance and combustion process chemical additives, as well as heating mechanism and atmosphere, was established. These results are relevant from standpoints of both application and processing of ferrites.

349 citations