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Chakrabarty, US

Ananda M. Chakrabarty, Villa Park, IL US

Patent application numberDescriptionPublished
20080213185Transport agents for crossing the blood-brain barrier and into brain cancer cells, and methods of use thereof - The present invention discloses methods and materials for delivering a cargo compound into a brain cancer cell and/or across the blood-brain barrier. Delivery of the cargo compound is accomplished by the use of protein transport peptides derived from Neisseria outer membrane proteins, such as Laz. The invention also provides synthetic transit peptides comprised of the pentapeptide AAEAP. The invention further discloses methods for treating cancer, and specifically brain cancer, as well as other brain-related conditions. Further, the invention provides methods of imaging and diagnosing cancer, particular brain cancer.09-04-2008
20090137468CYTOTOXIC FACTORS FOR MODULATING CELL DEATH - Cytotoxic factors having use in modulating cell death, and their use in methods of treating necrosis or apoptosis-related conditions are disclosed. The invention also relates to methods for identifying active agents useful in treating conditions related to cell death. The present inventors have found that different pathogens produce different cytotoxic factor(s) having anticancer activity. The substantially pure cytotoxic factors can be used in a method of treating an infectious disease or a cancer.05-28-2009
20100008919COMPOSITIONS AND METHODS TO CONTROL ANGIOGENESIS WITH CUPREDOXINS - The present invention relates to compositions comprising cupredoxins, and their use to inhibit angiogenesis in mammalian cells, tissues, and animals, and particularly the angiogenesis that accompanies tumor development and particularly in humans. Specifically, the present invention relates to compositions comprising the cupredoxin(s), and or peptides that are variants, derivatives or structural equivalents of cupredoxins, which retain the ability to inhibit angiogenesis in mammalian cells, tissues or animals. These compositions may be peptides or pharmaceutical compositions, among others. The compositions of the invention may be used to treat any pathological condition that has as a symptom or cause, inappropriate angiogenesis, and particularly inappropriate angiogenesis related to tumor development.01-14-2010
20110077387TRANSPORT AGENTS FOR CROSSING THE BLOOD-BRAIN BARRIER AND INTO BRAIN CANCER CELLS, AND METHODS OF USE THEREOF - The present invention discloses methods and materials for delivering a cargo compound into a brain cancer cell and/or across the blood-brain barrier. Delivery of the cargo compound is accomplished by the use of protein transport peptides derived from 03-31-2011

Patent applications by Ananda M. Chakrabarty, Villa Park, IL US

Deeparnab Chakrabarty, Atlanta, GA US

Patent application numberDescriptionPublished
20090037317Bidding in Online Auctions - Embodiments are directed to systems, methods, and apparatus for bidding in online auctions. In one embodiment, bids for advertising include an amount that is a function of an expected value-per-click and a fraction of a budget already spent for advertising slots.02-05-2009

Kaushik Chakrabarty, Webster, NY US

Patent application numberDescriptionPublished
20090301022Process for Manufacturing Insulated Siding - A siding panel assembly includes an ornamental facing and a first insulation layer made from fibrous insulating material. That fibrous insulating material includes polymer fibers and glass fibers, polymer fibers, natural fibers and mixtures thereof. A method for making the siding panel assembly includes the steps of cutting a groove in and molding a first surface of a sheet of the insulation layer to match in profile a concavity in the ornamental facing and assembling the insulation layer and the ornamental facing.12-10-2009

Krishnendu Chakrabarty, Chapel Hill, NC US

Patent application numberDescriptionPublished
20100236929Droplet Actuators, Systems and Methods - A droplet actuator with arrays of electrodes electrically coupled to a number of controllable voltage sources that is less than the number of electrodes. A method of defining partitions for pin layouts in a droplet actuator for a specific assay, the method including: defining droplet traces for the assay; and defining a guard ring along the traces. Other methods, systems, droplet actuators, and algorithms are also provided.09-23-2010

Paramita Chakrabarty, Gainesville, FL US

Patent application numberDescriptionPublished
20110262387METHODS AND MATERIALS FOR REDUCING OR SUPPRESSING AMYLOID DEPOSITION - This document relates to methods and materials for treating diseases and disorders that are caused by or associated with amyloid or amyloid-like proteins, such as Alzheimer's disease. For example, methods and materials for using interleukin-6 to reduce or suppress the deposition of Aβ are provided.10-27-2011

Rajan K. Chakrabarty, Reno, NV US

Patent application numberDescriptionPublished
20090056535PARTICLE SEPARATION - Embodiments of a method for selecting particles, such as based on their morphology, is disclosed. In a particular example, the particles are charged and acquire different amounts of charge, or have different charge distributions, based on their morphology. The particles are then sorted based on their flow properties. In a specific example, the particles are sorted using a differential mobility analyzer, which sorts particles, at least in part, based on their electrical mobility. Given a population of particles with similar electrical mobilities, the disclosed process can be used to sort particles based on the net charge carried by the particle, and thus, given the relationship between charge and morphology, separate the particles based on their morphology.03-05-2009
20100057421AGGREGATE SIMULATION - The present disclosure provides, among other things, a method for generating a simulated aggregate based on one or more input parameters. A test aggregate is constructed and rotated. Stable orientations of the aggregate on a surface are determined. In specific examples, two-dimensional properties are calculated for stable orientations of the test aggregate and stored or displayed. In particular implementations of the method, the test aggregate is constructed through successive monomer addition.03-04-2010
20100224479MORPHOLOGY ENGINEERING OF AGGREGATES - In various embodiments, the present disclosure provides, among other things, a system and method for influencing the morphology of aggregates. The present disclosure also provides for aggregates formed using the disclosed system and method. According to one disclosed method, a plurality of monomers are provided and an electric field is applied proximate the monomers. The applied fields helps influence the shape of an aggregate formed from the monomers.09-09-2010

Tania Chakrabarty, Chicago, IL US

Patent application numberDescriptionPublished
20090068671Binding method and apparatus for sorting objects - The present invention relates to a method and apparatus of sorting objects including, providing a sample having wanted objects and unwanted objects; coating a surface of a sample holder with an antibody; placing an eluted sample on the sample holder; binding an antigen in the wanted objects with the antibody on the surface of the sample holder to sort the objects into wanted objects and unwanted objects; separating the wanted objects; and performing PCR-based STR analysis on the wanted objects. In one embodiment, holographic optical trapping is used to further sort the wanted objects. In other embodiments, the wanted objects are sperm and the antibody is a human sperm specific antibody, and the PCR is single cell PCR-based STR analysis. In still other embodiments, the binding is direct or indirect, ligands are used to bind to object-specific organomolecules, and protein A or protein G are used to bind the antibody.03-12-2009
20090075826Methods and apparatuses for sorting objects in forensic DNA analysis and medical diagnostics - The present invention relates to an apparatus and method of sorting objects and identifying the objects in a forensics sample, including using holographic optical trapping to sort objects from contaminants, and performing (single cell) PCR-based STR analysis on the objects to determine their identification. In addition, the chip used as a support for sorting the objects can also be used for performing single cell PCR-based STR analysis. In another embodiment, a microfluidics chip is used to stream the sample and sort the objects, before single cell PCR-based STR analysis is performed. The chip used for sorting utilizing HOT in the absence or presence of microfluidic streaming and sorting can also be the same as that used for the single cell PCR-based STR analysis.03-19-2009
20110026009Surface Mapping by Optical Manipulation of Particles in Relation to a Functionalized Surface - Methods and apparatus for analyzing surface properties of particles are provided. A method for analyzing the surface properties of the particle includes a associating a first particle with a first capture zone having a specific binding affinity for a first chemical species, applying an optical force to the first particle, sensing a response of the first particle to the optical force, and using the sensed response to determine the presence, absence or quantity of the first chemical species on the first particle surface. This process may be repeated in parallel to test multiple particles. In addition to directly testing the surface properties of the particles, the method can be used in direct, indirect and competitive assays to determine the presence, absence or quantity of free or immobilized analytes. A fluidic cartridge with capture zones having avidities that are tuned for the use of optical forces is provided. A software routine for performing the method is also provided.02-03-2011
20110177547Particle Sorting Using Fluid Streams - A fluidic device includes an arrangement of channels for introducing a sample containing particles of interest into a processing chamber. The chamber is in fluid communication with collecting channels via low-flow connection channels. Particles in the sample may be observed and diverted from the processing chamber by application of a motive force such as optical trapping into a collection channel. Once in the collection channel, particles can be collected, including by trapping in a porous matrix.07-21-2011
20110223653Method and apparatuses for sorting objects in forensic DNA analysis and medical diagnostics - The present invention relates to an apparatus and method of sorting objects and identifying the objects in a forensics sample, including using holographic optical trapping to sort objects from contaminants, and performing (single cell) PCR-based STR analysis on the objects to determine their identification. In addition, the chip used as a support for sorting the objects can also be used for performing single cell PCR-based STR analysis. In another embodiment, a microfluidics chip is used to stream the sample and sort the objects, before single cell PCR-based STR analysis is performed. The chip used for sorting utilizing HOT in the absence or presence of microfluidic streaming and sorting can also be the same as that used for the single cell PCR-based STR analysis.09-15-2011