Patents Assigned to University of Calcutta
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Patent number: 9359265Abstract: Embodiments described herein provide for nanofertilizers having at least one plant nutrient coated onto a metal nanoparticle. Some embodiments provide for a method of making a nanofertilizer including providing a metal nanoparticle and coating the metal nanoparticle with at least one plant nutrient or precursor thereof. In some embodiments, a method of making a nanofertilizer may include mixing a metal salt and a plant nutrient in an aqueous medium to form a solution and adding a reducing agent to the solution to form a coated metal nanoparticle. Some embodiments provide for a boron nanofertilizer and methods of making the same. Some embodiments provide for a method of treating a plant nutrient deficiency, such as, for example, a boron deficiency. Some embodiments also provide for a kit for making a plant nutrient coated nanoparticle.Type: GrantFiled: August 7, 2012Date of Patent: June 7, 2016Assignee: University of CalcuttaInventor: Nilanjan Deb
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Patent number: 9354170Abstract: A method includes detecting D2O in a sample by fluorescence spectroscopy. The fluorescence spectroscopy may be near-infrared fluorescence spectroscopy. The method may include observing an excitation wavelength of the sample at 620 nm to 640 nm. The method may also include observing an emission wavelength of the sample at 900 nm to 1000 nm. The method includes detecting D2O and D2O nano-clusters and their alterations in presence of suspended or colloidal objects including bio-molecules or cells, by emission spectroscopy.Type: GrantFiled: April 5, 2011Date of Patent: May 31, 2016Assignee: UNIVERSITY OF CALCUTTAInventors: Anjan Kr. Dasgupta, Hirak Kumar Patra
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Patent number: 9322012Abstract: The present technology provides for enzyme compositions with enhanced enzyme activity, thermophilic and psychrophilic stability.Type: GrantFiled: August 8, 2014Date of Patent: April 26, 2016Assignee: UNIVERSITY OF CALCUTTAInventors: Anjan Kr. Dasgupta, Tamoghna Bhattacharyya, Arka Mukhopadhyay, Nalok Dutta, Krishanu Chakraborty
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Patent number: 9222216Abstract: Disclosed are methods for enzymatic treatment of wool using bacterial protease, cellulase, and xylanase enzymes.Type: GrantFiled: April 8, 2015Date of Patent: December 29, 2015Assignee: UNIVERSITY OF CALCUTTAInventors: Arka Mukhopadhyay, Krishanu Chakraborti, Nalok Dutta
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Patent number: 9133450Abstract: Provided herein are compositions and methods for enhancing enzyme activity, half-life and/or thermostability. Also provided herein are compositions and methods including the enhanced enzymes. Also provided herein are methods and compositions related to improved pectinolytic enzymes, such as pectate lyase, which exhibit enhanced activity, thermostability and/or longer half-life.Type: GrantFiled: April 14, 2012Date of Patent: September 15, 2015Assignee: UNIVERSITY OF CALCUTTAInventors: Arka Mukhopadhyay, Hirak Kumar Patra, Krishanu Chakraborti, Anjan Kr. Dasgupta, Dhrubajyoti Chattopadhyay
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Publication number: 20150185237Abstract: Methods including contacting, in the solid state, a sample comprising a first organic molecule with a composition comprising a carbon nanotube, such that an interface forms between the sample and the composition; observing any movement of the interface; and characterizing the first organic molecule based On the observed movement are described.Type: ApplicationFiled: August 6, 2012Publication date: July 2, 2015Applicant: University of CalcuttaInventors: Anjan, Kr. Dasgupta, Tamoghna Bhattacharyya
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Patent number: 9068939Abstract: Technologies are generally described for providing and using a material including: a template molecule; a first cluster of one or more nanoparticles located at a first site on the template molecule; and a second cluster of one or more nanoparticles located at a second site on the template molecule and spaced apart from the first cluster. In some embodiments, the first and second clusters of nanoparticles exhibit a plasmon resonance having a first resonant peak and a second resonant peak.Type: GrantFiled: June 21, 2011Date of Patent: June 30, 2015Assignee: UNIVERSITY OF CALCUTTAInventors: Anjan Kr. Dasgupta, Sarita Roy
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Patent number: 9024011Abstract: The present technology provides processes for cross-linking cellulose ethers under mild conditions. The processes include exposing a substantially dry cellulose ether film to a polyisocyanate to provide a cross-linked cellulose ether film, wherein the substantially dry cellulose ether film comprises alkoxide groups on the cellulose. The resulting cellulose ether films are highly cross-linked by polyurethane linkages and may be used as membranes in a variety of applications.Type: GrantFiled: September 2, 2010Date of Patent: May 5, 2015Assignee: University of CalcuttaInventors: Patit Paban Kundu, Ratan Pal Singh
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Patent number: 9002782Abstract: Systems and methods are provided for Online Analytical Processing of data included within data warehouses. According to one example, a method for adding a dimension to a hyper-lattice structure is provided and includes adding a new base cuboid to a hyper-lattice that describes functionality of the data warehouses. According to another example, a method for determining an optimal path through an existing hyper-lattice by which to generate a destination cuboid from a source cuboid is also provided.Type: GrantFiled: November 30, 2010Date of Patent: April 7, 2015Assignee: University of CalcuttaInventors: Nabendu Chaki, Soumya Sen
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Patent number: 8982344Abstract: Technologies are generally described for systems and methods for detecting chiral properties of materials and separating materials based on their chiral properties. A chiral vector is constructed from anisotropy properties of a polarization-dependent output signal from a sample. Different types of molecules from the sample can be differentiated based on a magnitude of the chiral vector. Chiral properties of the sample can be detected based on an angle of the chiral vector. The output signal can be a fluorescent emission from the sample and can be used to detect chiral properties of a substantially opaque sample.Type: GrantFiled: December 19, 2013Date of Patent: March 17, 2015Assignee: University of CalcuttaInventors: Anjan Kr. Dasgupta, Sarita Roy
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Patent number: 8901317Abstract: The synthesis and evaluation of gastroprotective effect of different tryptamine derivatives. Tryptamine derivatives have been synthesized by formation of amide or ester with some known anti oxidant molecules. These derivatives show excellent antioxidant property in vitro. Among all the derivatives the compound SEGA (3a), that was prepared by the combination of serotonin with gallic acid shows the greater antioxidant property than the other synthesized compounds both in vivo and in vitro. SEGA(3a) shows the gastroprotective effect against NSAIDs (indomethacin or diclofenac)-induced gastropathy in dose dependent manner and also accelerates the healing from injury. It prevents the NSAIDs-induced mitochondrial oxidative stress in vivo. This derivative prevents NSAID-induced mitochondrial oxidative stress-mediated apoptosis in vivo by preventing the activation of caspase 9 and caspase-3 and restores NSAIDs-mediated collapse of mitochondroial transmembrane potential and dehydrogenase activity.Type: GrantFiled: September 14, 2011Date of Patent: December 2, 2014Assignees: Council of Scientific & Industrial Research, University of CalcuttaInventors: Uday Bandyopadhyay, Chinmay Pal, Samik Bindu, Susanta Sekhar Adhikari
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Patent number: 8750619Abstract: Systems and methods for character recognition by performing lateral view-based analysis on the character data and generating a feature vector based on the lateral view-based analysis.Type: GrantFiled: December 27, 2013Date of Patent: June 10, 2014Assignee: University of CalcuttaInventors: Nabendu Chaki, Soharab Hossain Shaikh
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Publication number: 20140123093Abstract: Techniques generally disclosed herein relate to computation of a guard zone of a three-dimensional object. In some examples, guard zones may be computed by identifying intersection lines that couple adjacent planes of an object, and categorizing an external angle at an intersection line between adjacent planes as concave or convex. In some embodiments, for convex angles, a cylindrical surface can be determined that is located about an outside surface of the object and centered along the intersection line between the adjacent planes. In some embodiments, for concave angles, the external angle can be bisected with a bisection plane. A guard zone may be formed by one or more of (i) providing a guard zone plane parallel to the object that is a tangent to a given cylindrical surface, (ii) providing a guard zone plane parallel to the object that intersects a given bisection plane, and/or (iii) coupling adjacent guard zone planes.Type: ApplicationFiled: January 8, 2014Publication date: May 1, 2014Applicant: University Of CalcuttaInventors: RAJAT KUMAR PAL, RANJAN MEHERA
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Publication number: 20140112582Abstract: Systems and methods for character recognition by performing lateral view-based analysis on the character data and generating a feature vector based on the lateral view-based analysis.Type: ApplicationFiled: December 27, 2013Publication date: April 24, 2014Applicant: UNIVERSITY OF CALCUTTAInventors: Nabendu Chaki, Soharab Hossain Shaikh
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Publication number: 20140107942Abstract: Technologies are generally described for systems and methods for detecting chiral properties of materials and separating materials based on their chiral properties. A chiral vector is constructed from anisotropy properties of a polarization-dependent output signal from a sample. Different types of molecules from the sample can be differentiated based on a magnitude of the chiral vector. Chiral properties of the sample can be detected based on an angle of the chiral vector. The output signal can be a fluorescent emission from the sample and can be used to detect chiral properties of a substantially opaque sample.Type: ApplicationFiled: December 19, 2013Publication date: April 17, 2014Applicant: University of CalcuttaInventors: Anjan Kr. Dasgupta, Sarita Roy
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Patent number: 8644616Abstract: Systems and methods for character recognition by performing lateral view-based analysis on the character data and generating a feature vector based on the lateral view-based analysis.Type: GrantFiled: January 31, 2013Date of Patent: February 4, 2014Assignee: University of CalcuttaInventors: Nabendu Chaki, Soharab Hossain Shaikh
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Patent number: 8638434Abstract: Technologies are generally described for systems and methods for detecting chiral properties of materials and separating materials based on their chiral properties. A chiral vector is constructed from anisotropy properties of a polarization-dependent output signal from a sample. Different types of molecules from the sample can be differentiated based on a magnitude of the chiral vector. Chiral properties of the sample can be detected based on an angle of the chiral vector. The output signal can be a fluorescent emission from the sample and can be used to detect chiral properties of a substantially opaque sample.Type: GrantFiled: June 21, 2011Date of Patent: January 28, 2014Assignee: University of CalcuttaInventors: Anjan Kr. Dasgupta, Sarita Roy
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Patent number: 8640068Abstract: Techniques generally disclosed herein relate to computation of a guard zone of a three-dimensional object. In some examples, guard zones may be computed by identifying intersection lines that couple adjacent planes of an object, and categorizing an external angle at an intersection line between adjacent planes as concave or convex. In some embodiments, for convex angles, a cylindrical surface can be determined that is located about an outside surface of the object and centered along the intersection line between the adjacent planes. In some embodiments, for concave angles, the external angle can be bisected with a bisection plane. A guard zone may be formed by one or more of (i) providing a guard zone plane parallel to the object that is a tangent to a given cylindrical surface, (ii) providing a guard zone plane parallel to the object that intersects a given bisection plane, and/or (iii) coupling adjacent guard zone planes.Type: GrantFiled: March 3, 2011Date of Patent: January 28, 2014Assignee: University of CalcuttaInventors: Rajat Kumar Pal, Ranjan Mehera
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Patent number: 8546092Abstract: An embodiment relates to a method of detecting a drug resistance in a patient comprising adding nanoparticles to sample platelets to form activated platelets containing the nanoparticles and comparing a difference in activation of the activated platelets and the sample platelets. Another embodiment relates to a method of monitoring a thrombotic risk factor in a subject in a general population comprising adding nanoparticles to sample platelets to form activated platelets containing the nanoparticles and comparing a difference in activation of the activated platelets and the sample platelets. Yet another embodiment relates to a kit comprising nanoparticles, a fluorescence dye tagged antibody and optionally a buffer, wherein the kit is configured to detect a drug resistance in a patient or a likelihood of the thrombotic risk factor in a subject in general population.Type: GrantFiled: December 7, 2009Date of Patent: October 1, 2013Assignee: University of CalcuttaInventors: Suryyani Deb, Anjan Dasgupta, Prabir Lahiri
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Patent number: 8541645Abstract: Provided herein are non-human animal models and related methods useful for the identification, characterization, and analysis of the effects of environmental stimuli on the development and progression of pathological conditions. The environmental stimuli can include, but are not limited to, exposure to tobacco (e.g., cigarette, etc.) smoke. Exemplary pathological conditions include, but are not limited to, atherosclerosis, other cardiovascular disease (CVD), and the like. Also provided herein are non-human animal models and related methods useful for the identification, characterization, and analysis of pharmaceutical compounds, compositions, and/or formulations that can be used to prevent or treat a given pathological condition brought on by exposure to a given environmental condition.Type: GrantFiled: December 8, 2009Date of Patent: September 24, 2013Assignee: University of CalcuttaInventors: Alok Kumar Sil, Tanusree Ray, Palash Chandra Maity