Patents Assigned to University of Calcutta
  • Patent number: 9359265
    Abstract: 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: Grant
    Filed: August 7, 2012
    Date of Patent: June 7, 2016
    Assignee: University of Calcutta
    Inventor: Nilanjan Deb
  • Patent number: 9354170
    Abstract: 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: Grant
    Filed: April 5, 2011
    Date of Patent: May 31, 2016
    Assignee: UNIVERSITY OF CALCUTTA
    Inventors: Anjan Kr. Dasgupta, Hirak Kumar Patra
  • Patent number: 9322012
    Abstract: The present technology provides for enzyme compositions with enhanced enzyme activity, thermophilic and psychrophilic stability.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: April 26, 2016
    Assignee: UNIVERSITY OF CALCUTTA
    Inventors: Anjan Kr. Dasgupta, Tamoghna Bhattacharyya, Arka Mukhopadhyay, Nalok Dutta, Krishanu Chakraborty
  • Patent number: 9222216
    Abstract: Disclosed are methods for enzymatic treatment of wool using bacterial protease, cellulase, and xylanase enzymes.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: December 29, 2015
    Assignee: UNIVERSITY OF CALCUTTA
    Inventors: Arka Mukhopadhyay, Krishanu Chakraborti, Nalok Dutta
  • Patent number: 9133450
    Abstract: 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: Grant
    Filed: April 14, 2012
    Date of Patent: September 15, 2015
    Assignee: UNIVERSITY OF CALCUTTA
    Inventors: Arka Mukhopadhyay, Hirak Kumar Patra, Krishanu Chakraborti, Anjan Kr. Dasgupta, Dhrubajyoti Chattopadhyay
  • Publication number: 20150185237
    Abstract: 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: Application
    Filed: August 6, 2012
    Publication date: July 2, 2015
    Applicant: University of Calcutta
    Inventors: Anjan, Kr. Dasgupta, Tamoghna Bhattacharyya
  • Patent number: 9068939
    Abstract: 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: Grant
    Filed: June 21, 2011
    Date of Patent: June 30, 2015
    Assignee: UNIVERSITY OF CALCUTTA
    Inventors: Anjan Kr. Dasgupta, Sarita Roy
  • Patent number: 9024011
    Abstract: 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: Grant
    Filed: September 2, 2010
    Date of Patent: May 5, 2015
    Assignee: University of Calcutta
    Inventors: Patit Paban Kundu, Ratan Pal Singh
  • Patent number: 9002782
    Abstract: 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: Grant
    Filed: November 30, 2010
    Date of Patent: April 7, 2015
    Assignee: University of Calcutta
    Inventors: Nabendu Chaki, Soumya Sen
  • Patent number: 8982344
    Abstract: 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: Grant
    Filed: December 19, 2013
    Date of Patent: March 17, 2015
    Assignee: University of Calcutta
    Inventors: Anjan Kr. Dasgupta, Sarita Roy
  • Patent number: 8901317
    Abstract: 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: Grant
    Filed: September 14, 2011
    Date of Patent: December 2, 2014
    Assignees: Council of Scientific & Industrial Research, University of Calcutta
    Inventors: Uday Bandyopadhyay, Chinmay Pal, Samik Bindu, Susanta Sekhar Adhikari
  • Patent number: 8750619
    Abstract: 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: Grant
    Filed: December 27, 2013
    Date of Patent: June 10, 2014
    Assignee: University of Calcutta
    Inventors: Nabendu Chaki, Soharab Hossain Shaikh
  • Publication number: 20140123093
    Abstract: 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: Application
    Filed: January 8, 2014
    Publication date: May 1, 2014
    Applicant: University Of Calcutta
    Inventors: RAJAT KUMAR PAL, RANJAN MEHERA
  • Publication number: 20140112582
    Abstract: 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: Application
    Filed: December 27, 2013
    Publication date: April 24, 2014
    Applicant: UNIVERSITY OF CALCUTTA
    Inventors: Nabendu Chaki, Soharab Hossain Shaikh
  • Publication number: 20140107942
    Abstract: 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: Application
    Filed: December 19, 2013
    Publication date: April 17, 2014
    Applicant: University of Calcutta
    Inventors: Anjan Kr. Dasgupta, Sarita Roy
  • Patent number: 8644616
    Abstract: 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: Grant
    Filed: January 31, 2013
    Date of Patent: February 4, 2014
    Assignee: University of Calcutta
    Inventors: Nabendu Chaki, Soharab Hossain Shaikh
  • Patent number: 8638434
    Abstract: 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: Grant
    Filed: June 21, 2011
    Date of Patent: January 28, 2014
    Assignee: University of Calcutta
    Inventors: Anjan Kr. Dasgupta, Sarita Roy
  • Patent number: 8640068
    Abstract: 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: Grant
    Filed: March 3, 2011
    Date of Patent: January 28, 2014
    Assignee: University of Calcutta
    Inventors: Rajat Kumar Pal, Ranjan Mehera
  • Patent number: 8546092
    Abstract: 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: Grant
    Filed: December 7, 2009
    Date of Patent: October 1, 2013
    Assignee: University of Calcutta
    Inventors: Suryyani Deb, Anjan Dasgupta, Prabir Lahiri
  • Patent number: 8541645
    Abstract: 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: Grant
    Filed: December 8, 2009
    Date of Patent: September 24, 2013
    Assignee: University of Calcutta
    Inventors: Alok Kumar Sil, Tanusree Ray, Palash Chandra Maity