Applied Physics, Nanomaterials and their sensing and energy applications.
8
Scopus Publications
257
Scholar Citations
6
Scholar h-index
5
Scholar i10-index
Scopus Publications
Ultra-fast selective sensing of ethanol and petrol using microwave-range metamaterial complementary split-ring resonators Vaishali Rawat, Sandip Dhobale, S. N. Kale Journal of Applied Physics, 2014 An extremely compact metamaterial microstrip sensor based on complementary split-ring-resonators (CSRRs) has been fabricated for chemical sensing. This device exhibits a resonance with high rejection at 4.5 GHz, which demonstrates concomitant variations when exposed to liquids of various permittivity values. The resonance frequency of CSRR is sensitive to the change in nearby dielectric material. The sensing of petrol shows a shift in frequency with a sharp dip in transmission, while, with ethanol, the frequency shift is accompanied with increase in the power of the signal. The ultra-fast reversibility and repeatability offers good headway towards hybrid fuel sensing applications.
Screening of protease producing fungi for microbial digestion of seed proteins and synthesis of amino acids-metalnutrient chelates G.B. Deore, A.S. Limaye, Y.A. Dushing, S.B. Dhobale, S. Kale, S.L. Laware Pakistan Journal of Biological Sciences, 2013 The problem of metalnutrient deficiency is becoming more serious with the introduction of modern agricultural practices. As a result, metalnutrient deficiency is recognized as one of the critical yield limiting factors. Metalnutrients are generally offered in their sulphate or oxide forms. However, it is reported that organically bound minerals generally have a higher bioavailability than inorganic minerals. Chelation makes otherwise unavailable metalnutrients plant available. Amino acids are well known among various chelating agents. In present investigation the fungus Paecilomyces variotii PR-4 was isolated from soil and was used for production of protease and determination of its activity. Proteins from germinating seeds of chick pea, mung bean, soybean and cowpea were hydrolyzed for the production of amino acids. Amino acids were recovered, estimated and utilized for chelation of metalnutrients viz., Zn, Cu, Fe, Mn, Mg, B and Mo. The resultant chelates were employed to detect with Fourier Transform Infra-Red Spectrophotometer (FTIR) analysis. The peaks of most intensive bands in the IR spectra of ligands recorded were present in the intervals of the wave numbers 3500-3300 and 1720-1700 cm(-1). Chelation of metalnutrients led to the broadening of peak and changes of the peak position of hydroxyl groups, which indicated the binding of the carboxylic groups and primary amine groups of amino acids to the metalnutrients. The resultant amino acids-metalnutrient chelates can be utilized as organic fertilizer.
Nanostructured glucose-oxidase immobilized SnO2 thin films for glucose sensing S. Dhobale, P. Joshee, G. Deore, S. L. Laware, S. N. Kale Applied Physics Letters, 2011 Polycrystalline rutile films of SnO2 (∼1500 A) were deposited on Al2O3. Film imaging showed regular ellipsoidal nanostructured growth. Different concentrations (1000–3000 U) of glucose oxidase (GOx) were immobilized on SnO2 surface. Upon interaction with various glucose concentrations (65–300 mg/dl), films showed pronounced change in their sheet resistance with recovery and repeatability. Nanostructured SnO2 surfaces probably enhance adsorption of oxygen moieties. These convert to their ions by extracting electron/s from the conduction band of SnO2, which further interacts with H+, formed during the GOx-glucose interaction. This releases the trapped electron to the conduction band of SnO2, justifying its role as a catalyst.
Zinc oxide nanoparticles as novel alpha-amylase inhibitors Sandip Dhobale, Trupti Thite, S. L. Laware, C. V. Rode, Soumya J. Koppikar, Ruchika-Kaul Ghanekar, S. N. Kale Journal of Applied Physics, 2008 Amylase inhibitors, also known as starch blockers, contain substances that prevent dietary starches from being absorbed by the body via inhibiting breakdown of complex sugars to simpler ones. In this sense, these materials are projected as having potential applications in diabetes control. In this context, we report on zinc oxide nanoparticles as possible alpha-amylase inhibitors. Zinc oxide nanoparticles have been synthesized using soft-chemistry approach and 1-thioglycerol was used as a surfactant to yield polycrystalline nanoparticles of size ∼18 nm, stabilized in wurtzite structure. Conjugation study and structural characterization have been done using x-ray diffraction technique, Fourier transform infrared spectroscopy, UV-visible spectroscopy, and transmission electron microscopy. Cytotoxicity studies on human fibrosarcoma (HT-1080) and skin carcinoma (A-431) cell lines as well as mouse primary fibroblast cells demonstrate that up to a dose of 20 μg/ml, ZnO nanoparticles are nontoxic to the cells. W...
RECENT SCHOLAR PUBLICATIONS
Applied Physics NK Sandip Dhobale https://www.kbipublishers.com/collections/textsbooks/products/applied-physics/ , 2024 2024
Engineering Physics S Dhobale https://www.kbipublishers.com/collections/textsbooks/products/engineering … , 2024 2024
Design of cost-efficient Glucose meter SDTA Sanjana Rao, Sattwik Mohanty, Chirag Amarnani, Kausar Fakir International Conference on Automation, Computing and Communication 2021 … , 2021 2021 Citations: 2
Design of Micro-heater on 3D-SnO 2 Gas Sensor GY Rajput, MS Gofane, S Dhobale Computing, Communication and Signal Processing: Proceedings of ICCASP 2018 … , 2018 2018 Citations: 2
Studies on control of erratic release of ketoprofen from commercial patches for sustained pain-relief using silica microparticles S Gaware, P Bala, S Dhobale, A Joshi, N Wagh, K Pal, SN Kale Nano Hybrids and Composites 12, 88-97 , 2017 2017 Citations: 3
Growth of ZnO nanorods using hydrothermal for gas sensing application KMS A Pawar, S Dhobale, RG Pardeshi Research Journal of Physical Sciences 3 (2), 1-3 , 2015 2015 Citations: 22
Ultra-fast selective sensing of ethanol and petrol using microwave-range metamaterial complementary split-ring resonators V Rawat, S Dhobale, SN Kale Journal of Applied Physics 116 (16) , 2014 2014 Citations: 73
Grain boundary engineering of La0. 7 Sr0. 3 MnO3 films on silicon substrate: Scanning Tunneling Microscopy-Spectroscopy study A Joshi, R Nori, S Dhobale, VR Rao, SN Kale, S Datar Physica B: Condensed Matter 448, 85-89 , 2014 2014 Citations: 1
Metal oxide _Zno and Snoand#8322;_ nanomaterials as chemical and biological sensor Sandip Dhobale, G R Kulkarni, S N Kale, Sandip Dhobale Savitribai Phule Pune University , 2014 2014
Zinc Oxide Nanomaterials as Amylase Inhibitors and for Water Pollution Control R Kitture, S Dhobale, SN Kale ZnO Nanocrystals and Allied Materials, 269-287 , 2013 2013
Observation of 10% Fe Solubility in Ammonia-Coprecipitated Fe Doped SnO2 Nanopowders: A Structural, Optical and Hyperfine Property Study S Dhobale, S Jouen, B Lefez, GR Kulkarni, B Hannoyer, SN Kale Materials Focus 2 (1), 58-62 , 2013 2013
Screening of protease producing fungi for microbial digestion of seed proteins and synthesis of amino acids-metalnutrient chelates. GB Deore, AS Limaye, YA Dushing, SB Dhobale, S Kale, SL Laware Pakistan Journal of Biological Sciences: PJBS 16 (2), 86-91 , 2013 2013 Citations: 8
Engineering room temperature SO2 gas sensing via laser-annealed nanostructured SnO2 thin films S Dhobale, NM Kulkarni, RJ Choudhary, DM Phase, SN Kale Science of Advanced Materials 4 (3-4), 475-479 , 2012 2012 Citations: 6
Intramolecular and intermolecular crosslinked poly (vinyl alcohol)–borate complexes for the sustained release of fertilizers and enzymes SN Kale, J Mona, S Dhobale, T Thite, SL Laware Journal of Applied Polymer Science 121 (4), 2450-2457 , 2011 2011 Citations: 30
Nanostructured glucose-oxidase immobilized SnO2 thin films for glucose sensing S Dhobale, P Joshee, G Deore, SL Laware, SN Kale Applied physics letters 98 (7) , 2011 2011 Citations: 14
Zinc oxide nanoparticles as novel alpha-amylase inhibitors S Dhobale, T Thite, SL Laware, CV Rode, SJ Koppikar, RK Ghanekar, ... Journal of Applied Physics 104 (9) , 2008 2008 Citations: 96
MOST CITED SCHOLAR PUBLICATIONS
Zinc oxide nanoparticles as novel alpha-amylase inhibitors S Dhobale, T Thite, SL Laware, CV Rode, SJ Koppikar, RK Ghanekar, ... Journal of Applied Physics 104 (9) , 2008 2008 Citations: 96
Ultra-fast selective sensing of ethanol and petrol using microwave-range metamaterial complementary split-ring resonators V Rawat, S Dhobale, SN Kale Journal of Applied Physics 116 (16) , 2014 2014 Citations: 73
Intramolecular and intermolecular crosslinked poly (vinyl alcohol)–borate complexes for the sustained release of fertilizers and enzymes SN Kale, J Mona, S Dhobale, T Thite, SL Laware Journal of Applied Polymer Science 121 (4), 2450-2457 , 2011 2011 Citations: 30
Growth of ZnO nanorods using hydrothermal for gas sensing application KMS A Pawar, S Dhobale, RG Pardeshi Research Journal of Physical Sciences 3 (2), 1-3 , 2015 2015 Citations: 22
Nanostructured glucose-oxidase immobilized SnO2 thin films for glucose sensing S Dhobale, P Joshee, G Deore, SL Laware, SN Kale Applied physics letters 98 (7) , 2011 2011 Citations: 14
Screening of protease producing fungi for microbial digestion of seed proteins and synthesis of amino acids-metalnutrient chelates. GB Deore, AS Limaye, YA Dushing, SB Dhobale, S Kale, SL Laware Pakistan Journal of Biological Sciences: PJBS 16 (2), 86-91 , 2013 2013 Citations: 8
Engineering room temperature SO2 gas sensing via laser-annealed nanostructured SnO2 thin films S Dhobale, NM Kulkarni, RJ Choudhary, DM Phase, SN Kale Science of Advanced Materials 4 (3-4), 475-479 , 2012 2012 Citations: 6
Studies on control of erratic release of ketoprofen from commercial patches for sustained pain-relief using silica microparticles S Gaware, P Bala, S Dhobale, A Joshi, N Wagh, K Pal, SN Kale Nano Hybrids and Composites 12, 88-97 , 2017 2017 Citations: 3
Design of cost-efficient Glucose meter SDTA Sanjana Rao, Sattwik Mohanty, Chirag Amarnani, Kausar Fakir International Conference on Automation, Computing and Communication 2021 … , 2021 2021 Citations: 2
Design of Micro-heater on 3D-SnO 2 Gas Sensor GY Rajput, MS Gofane, S Dhobale Computing, Communication and Signal Processing: Proceedings of ICCASP 2018 … , 2018 2018 Citations: 2
Grain boundary engineering of La0. 7 Sr0. 3 MnO3 films on silicon substrate: Scanning Tunneling Microscopy-Spectroscopy study A Joshi, R Nori, S Dhobale, VR Rao, SN Kale, S Datar Physica B: Condensed Matter 448, 85-89 , 2014 2014 Citations: 1
Applied Physics NK Sandip Dhobale https://www.kbipublishers.com/collections/textsbooks/products/applied-physics/ , 2024 2024
Engineering Physics S Dhobale https://www.kbipublishers.com/collections/textsbooks/products/engineering … , 2024 2024
Metal oxide _Zno and Snoand#8322;_ nanomaterials as chemical and biological sensor Sandip Dhobale, G R Kulkarni, S N Kale, Sandip Dhobale Savitribai Phule Pune University , 2014 2014
Zinc Oxide Nanomaterials as Amylase Inhibitors and for Water Pollution Control R Kitture, S Dhobale, SN Kale ZnO Nanocrystals and Allied Materials, 269-287 , 2013 2013
Observation of 10% Fe Solubility in Ammonia-Coprecipitated Fe Doped SnO2 Nanopowders: A Structural, Optical and Hyperfine Property Study S Dhobale, S Jouen, B Lefez, GR Kulkarni, B Hannoyer, SN Kale Materials Focus 2 (1), 58-62 , 2013 2013
