Patents by Inventor Stephanie L. Castro
Stephanie L. Castro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230088092Abstract: A photoactive cluster particle for durable latex paint compositions and said durable paint compositions, the photoactive cluster particle including a binder that coalesces cluster components into a cluster particle. The cluster components of the cluster particle include a photoactive component, one or more silicon-containing particles (may act as the binder), optional discrete polymeric particles each defining a closed void volume therein, optional non-photocatalytic inorganic pigment particles, optional organic latex polymer, and optional extender pigment particles. The photoactive cluster particle further includes an interstitial void network of the cluster particle forming a porosity thereof.Type: ApplicationFiled: March 5, 2021Publication date: March 23, 2023Inventors: Robert A. MARTUCH, Stephanie L. CASTRO, Joseph K. WALKER, Jr.
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Publication number: 20220363921Abstract: Coated articles and self- or easy-cleaning paint and coating compositions including a carrier liquid, a binder resin and additives, wherein such additives include, but are not limited to, a polymer or oligomer with at least one zwitterionic moiety. The carrier liquid is water, an organic solvent, or a combination thereof. The binder resin may be a waterborne latex, an acrylic-amino, alkyd, polyurethane, epoxy or other compatible resin. The paint and coating compositions may also contain pigment.Type: ApplicationFiled: June 3, 2020Publication date: November 17, 2022Inventors: Stephanie L. CASTRO, Patrick K. DONOVAN
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Publication number: 20100184230Abstract: Provided are compositions and assay kits comprising functionalized nanocrystals having extending therefrom a plurality of polynucleotide strands of known sequence; wherein primary dots are used to operably link to a molecular probe, and secondary dots comprise a plurality of polynucleotide strands which are complementary to the plurality of polynucleotide strands of the primary dots. Also provided is a method for detecting the presence or absence of target molecule in a sample comprising operably linking primary dots to molecular probe, contacting the complex formed with the sample, contacting the sample with successive additions of secondary dots and primary dots. If target molecule is present in the sample, the primary dots and secondary dots will form dendrimers that can be detected by fluorescence emission.Type: ApplicationFiled: October 26, 2009Publication date: July 22, 2010Applicant: LIFE TECHNOLOGIES CORPORATIONInventors: Emilio BARBERA-GUILLEM, M. Bud Nelson, Stephanie L. Castro
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Patent number: 6992202Abstract: A single source precursor for depositing ternary I-III-VI2 chalcopyrite materials useful as semiconductors. The single source precursor has the I-III-VI2 stoichiometry “built into” a single precursor molecular structure which degrades on heating or pyrolysis to yield the desired I-III-VI2 ternary chalcopyrite. The single source precursors effectively degrade to yield the ternary chalcopyrite at low temperature, e.g. below 500° C., and are useful to deposit thin film ternary chalcopyrite layers via a spray CVD technique. The ternary single source precursors according to the invention can be used to provide nanocrystallite structures useful as quantum dots. A method of making the ternary single source precursors is also provided.Type: GrantFiled: October 31, 2003Date of Patent: January 31, 2006Assignees: Ohio Aerospace Institute, The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Kulbinder K. Banger, Aloysius F. Hepp, Jerry D. Harris, Michael Hyun-Chul Jin, Stephanie L. Castro
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Patent number: 6828142Abstract: Provided are compositions and assay kits comprising functionalized nanocrystals having extending therefrom a plurality of polynucleotide strands of known sequence; wherein primary dots are used to operably link to a molecular probe, and secondary dots comprise a plurality of polynucleotide strands which are complementary to the plurality of polynucleotide strands of the primary dots. Also provided is a method for detecting the presence or absence of target molecule in a sample comprising operably linking primary dots to molecular probe, contacting the complex formed with the sample, contacting the sample with successive additions of secondary dots and primary dots. If target molecule is present in the sample, the primary dots and secondary dots will form dendrimers that can be detected by fluorescence emission.Type: GrantFiled: July 13, 2001Date of Patent: December 7, 2004Assignee: Bio-Pixel Ltd.Inventors: Emillo Barbera-Guillem, M. Bud Nelson, Stephanie L. Castro
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Patent number: 6680211Abstract: Provided are a fluorescent microsphere comprised of a plurality of fluorescent nanocrystals embedded in a polymeric microsphere; a kit prepared from the fluorescent microspheres; and a method of producing the fluorescent microspheres comprising swelling the polymeric microsphere so that into its pores can enter fluorescent nanocrystals, and then unswelling the polymeric micropsheres so that the fluorescent nanocrystals become physically entrapped in the pores of the unswelled polymeric microsphere. Also provided is a method of using the fluorescent microspheres comprising affinity ligand for determining the presence or absence of a predetermined number of analytes in a sample by contacting the sample with the fluorescent microspheres, and detecting the fluorescence signal pattern of excited fluorescent microspheres bound to one or more analytes of the predetermined number of analytes, if present in the sample.Type: GrantFiled: February 14, 2003Date of Patent: January 20, 2004Assignee: Biocrystal, Ltd.Inventors: Emilio Barbera-Guillem, Stephanie L. Castro
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Publication number: 20030157327Abstract: Provided are a fluorescent microsphere comprised of a plurality of fluorescent nanocrystals embedded in a polymeric microsphere; a kit prepared from the fluorescent microspheres; and a method of producing the fluorescent microspheres comprising swelling the polymeric microsphere so that into its pores can enter fluorescent nanocrystals, and then unswelling the polymeric micropsheres so that the fluorescent nanocrystals become physically entrapped in the pores of the unswelled polymeric microsphere. Also provided is a method of using the fluorescent microspheres comprising affinity ligand for determining the presence or absence of a predetermined number of analytes in a sample by contacting the sample with the fluorescent microspheres, and detecting the fluorescence signal pattern of excited fluorescent microspheres bound to one or more analytes of the predetermined number of analytes, if present in the sample.Type: ApplicationFiled: February 14, 2003Publication date: August 21, 2003Inventors: Emilio Barbera-Guillem, Stephanie L. Castro
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Patent number: 6548171Abstract: Provided are a fluorescent microsphere comprised of a plurality of fluorescent nanocrystals embedded in a polymeric microsphere; a kit prepared from the fluorescent microspheres; and a method of producing the fluorescent microspheres comprising swelling the polymeric microsphere so that into its pores can enter fluorescent nanocrystals, and then unswelling the polymeric micropsheres so that the fluorescent nanocrystals become physically entrapped in the pores of the unswelled polymeric microsphere. Also provided is a method of using the fluorescent microspheres comprising affinity ligand for determining the presence or absence of a predetermined number of analytes in a sample by contacting the sample with the fluorescent microspheres, and detecting the fluorescence signal pattern of excited fluorescent microspheres bound to one or more analytes of the predetermined number of analytes, if present in the sample.Type: GrantFiled: August 8, 2000Date of Patent: April 15, 2003Inventors: Emilio Barbera-Guillem, Stephanie L. Castro
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Publication number: 20020150905Abstract: Provided are compositions and assay kits comprising functionalized nanocrystals having extending therefrom a plurality of polynucleotide strands of known sequence; wherein primary dots are used to operably link to a molecular probe, and secondary dots comprise a plurality of polynucleotide strands which are complemetary to the plurality of polynucleotide strands of the primary dots. Also provided is a method for detecting the presence or absence of target molecule in a sample comprising operably linking primary dots to molecular probe, contacting the complex formed with the sample, contacting the sample with successive additions of secondary dots and primary dots. If target molecule is present in the sample, the primary dots and secondary dots will form dendrimers that can be detected by fluorescence emission.Type: ApplicationFiled: July 13, 2001Publication date: October 17, 2002Inventors: Emilio Barbera-Guillem, M. Bud Nelson, Stephanie L. Castro
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Patent number: 6319607Abstract: Provided are methods for purifying functionalized fluorescent nanocrystals having affinity ligand operably bound thereto by using a solid support matrix in a reactor through which solutions are circulated, and by using an immobilized solid phase formed by operably binding functionalized fluorescent nanocrystals to the solid support matrix. Also provided are purified functionalized fluorescent nanocrystals having affinity ligand operably bound thereto which are purified using the methods according to the present invention to be substantially free of free affinity ligand.Type: GrantFiled: June 8, 2000Date of Patent: November 20, 2001Assignee: Bio-Pixels Ltd.Inventors: Emilio Barbera-Guillem, Stephanie L. Castro
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Patent number: 6261779Abstract: Provided are compositions and assay kits comprising functionalized nanocrystals having extending therefrom a plurality of polynucleotide strands of known sequence; wherein primary dots are used to operably link to a molecular probe, and secondary dots comprise a plurality of polynucleotide strands which are complemetary to the plurality of polynucleotide strands of the primary dots. Also provided is a method for detecting the presence or absence of target molecule in a sample comprising operably linking primary dots to molecular probe, contacting the complex formed with the sample, contacting the sample with successive additions of secondary dots and primary dots. If target molecule is present in the sample, the primary dots and secondary dots will form dendrimers that can be detected by fluorescence emission.Type: GrantFiled: November 9, 1999Date of Patent: July 17, 2001Assignee: Bio-Pixels Ltd.Inventors: Emilio Barbera-Guillem, M. Bud Nelson, Stephanie L. Castro
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Functionalized nanocrystals and their use in labeling for strand synthesis or sequence determination
Patent number: 6221602Abstract: Provided are compositions comprising functionalized nanocrystal-labeled nucleobases that are produced by operably linking a nucleobase to a functionalized nanocrystal via reactive functionalities. Also provided are kits comprising a plurality of species of functionalized nanocrystal-labeled nucleobases. The functionalized nanocrystal-labeled nucleobases may be added to a strand synthesis reaction under suitable conditions to be incorporated into one or more strands synthesized in the reaction.Type: GrantFiled: November 9, 1999Date of Patent: April 24, 2001Assignee: Bio-Pixels Ltd.Inventors: Emilio Barbera-Guillem, M. Bud Nelson, Stephanie L. Castro -
Patent number: 6114038Abstract: Provided are compositions comprising water-soluble, functionalized nanocrystals. The water-soluble functionalized nanocrystals comprise quantum dots capped with a layer of a capping compound, and further comprise, by operably linking and in a successive manner, one or more additional compounds. The one or more additional compounds is comprised of at least a diaminocarboxylic acid which is operatively linked to the capping compound, and may further comprise an amino acid, an affinity ligand, or a combination thereof. Also provided are methods of using the functionalized nanocrystals having an affinity ligand to detect the presence or absence of a target substrate in a sample.Type: GrantFiled: August 11, 1999Date of Patent: September 5, 2000Assignee: BioCrystal Ltd.Inventors: Stephanie L. Castro, Emilio Barbera-Guillem