Patents Assigned to Universidad De Antioquia
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Patent number: 11814586Abstract: The present disclosure refers to a process of obtaining a biocrude from biomass, where said process comprises the solvothermal liquefaction of the biomass in the presence of a mixture of solvents, until obtaining a gaseous phase, a solid phase, an aqueous liquid phase and an organic liquid phase comprising the biocrude. Wherein the mixture of solvents comprises between 0.5% w/w to 99.5% w/w of water and at least one solvent; and wherein the solvent is selected from alcohols, ketones, aldehydes, or precursors thereof under the processing conditions. The process described herein allows the use of biomass for the production of renewable fuels, as well as obtaining a biocrude with a yield greater than or equal to 30%, with a calorific value between 20 and 35 MJ/Kg and with a sulfur percentage lower than 1% w/w.Type: GrantFiled: July 22, 2022Date of Patent: November 14, 2023Assignees: Cementos Argos S.A., Universidad de AntioquiaInventors: David Ocampo Echeverri, Luis Alberto Rios, Elkin Andrés Gómez Mejía, Gabriel Jaime Vargas Betancur
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Publication number: 20220161218Abstract: The invention relates to a process for coating water-insoluble solids by ionic gelation employing negatively-charged macromolecules and a source of polyvalent cations as film-forming materials, wherein the coating material represents not more than 10% (w/w) with regard to the total weight of the coated solid. The coated insoluble solids may be subsequently dried to generate surface-modified dry particles for use as active ingredients and/or excipients in the manufacture of pharmaceutical compositions or food products.Type: ApplicationFiled: March 17, 2020Publication date: May 26, 2022Applicants: NEXENTIA S.A.S., UNIVERSIDAD DE ANTIOQUIAInventors: Herley CASANOVA YEPES, Felipe DELGADO OSPINA, Jorge Osvaldo JAIMES JAIMES, Julián Andrés SÁNCHEZ RENDÓN, Juan Diego TORRES OQUENDO
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Patent number: 11205735Abstract: Optoelectronic devices having an improved architecture are disclosed, such as p-i-n hybrid solar cells. These solar cells are characterized by including an insulating mesoporous scaffold in between the hole transportation layer and the photoactive layer, in such a way that the photoactive layer infiltrates the insulating mesoporous scaffold and contacts the hole transportation layer. The infiltration of the photoactive layer in the mesoporous scaffold improves the performance of the hole transportation layer and increases the photovoltaic performance of the solar cell. Solar cells, according to the present invention are manufactured in their entirety below 150° C. and present advantages in terms of cost and ease of manufacture, performance, and energy efficiency, stability over time and reproducibility.Type: GrantFiled: May 6, 2018Date of Patent: December 21, 2021Assignees: Universidad de Antioquia, Anhidridos y Derivados de Colombia S.A.—Andercol, Suministros de Colombia S.A.S., SUMICOL, Empresas Publicas de MedellinInventors: Franklin Jaramillo Isaza, Daniel Estiben Ramirez Zora, Juan Felipe Montoya Arango
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Patent number: 10773231Abstract: This invention relates to a process for colloidosome-type microcapsules elaboration from solid particles microcapsules obtained by ionic gelation. In the process, an (O/W) type emulsion is initially generated stabilized with the solid particles microcapsules, and then the particles are fixed to the interface by adsorption of polyelectrolytes, cross-linking, heat treatment or fatty coating, generating the colloidosome with the water-insoluble phase encapsulated in the core and covered by the shell particles.Type: GrantFiled: June 18, 2016Date of Patent: September 15, 2020Assignees: Nexentia S.A.S., Universidad de AntioquiaInventors: Herley Casanova, César Augusto Pérez Zapata
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Publication number: 20190100726Abstract: A method to obtain vegetable fibers from vegetable specimen xylematic tissue meristematic cambial cells is provided. The method implies the identification and isolation of meristematic cambial cells from the xylematic tissue, their later cultivation and multiplication and the induction of fiber-like structures, in order to finally produce fibers. The process obtains vegetable fibers in laboratory conditions through isolated xylematic tissue cambial cells, offering an alternative to the production of fibers from plants.Type: ApplicationFiled: October 4, 2018Publication date: April 4, 2019Applicants: SUPER BAC - PROTEÇÃO AMBIENTAL S.A., UNIVERSIDAD DE ANTIOQUIAInventors: LUCIA ATEHORTUA GARCES, OSMAN DARIO FERNANDEZ BETIN, ANDRES DARIO LARA ESTRADA, CARLOS ENRIQUE MUSKLUS LOPEZ, ESTHER JULIA NARANJO GOMEZ, ORIANA PARRA ZULETA
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Patent number: 10085948Abstract: The invention relates to a method for ionic gelation on solids for encapsulating water-insoluble solids. The method uses negatively charged macromolecules and soluble salts of polyvalent cations as shell-forming materials having a high adsorption on the surface of the solid when subjected to thermal treatment. The shell-forming material represents at least 10% of the weight of the dry microcapsule obtained. The obtained microcapsule can be redispersed in water and treated by altering the environment thereof in order to be used as an encapsulating medium for water-soluble compounds and they can also be used as active ingredients and/or excipients in the production of pharmaceutical or nutraceutical compositions.Type: GrantFiled: August 21, 2014Date of Patent: October 2, 2018Assignee: Universidad de Antioquia (UDEA)Inventors: Herley Fernando Casanova, César Perez Zapata, César Restrepo, Johnatan Diosa Arango
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Patent number: 9801895Abstract: The cream formulation of the present invention is a topical cream made with antimycotic (amphotericin B) and a mixture of excipients where the water present in the formulation smoothes inflamed tissue. The cream has a particular application for the treatment of cutaneous leishmaniasis and mucosal leishmaniasis in humans and animals. The topical application avoids the risks of toxicity and the gastrointestinal hassles of pills treatments. It has greater acceptability from patient and does not require of valuations before, during or after treatment to check toxicity levels of the liver, kidney and heart.Type: GrantFiled: July 26, 2013Date of Patent: October 31, 2017Assignees: HUMAX PHARMACEUTICAL S.A., UNIVERSIDAD DE ANTIOQUIAInventors: Ivan Dario Velez-Bernal, Sara Maria Robledo-Restrepo, Martha Beatriz Robledo-Restrepo, Alba Lucia Ceballos-Maya, Newar Andres Giraldo-Alzate, Alvaro Gomez-Zuluaga, Juan Jose Zuluaga-Rivera
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Patent number: 9789472Abstract: A method for preparing an iron-based catalyst, the method including preparing iron ore particles by grinding iron ore; and impregnating the iron ore particles with a first metal and second metal, wherein the first metal is selected from copper, cobalt, or manganese, or a combination thereof, and the second metal is selected from an alkali metal or alkali earth metal, or a combination thereof.Type: GrantFiled: July 29, 2014Date of Patent: October 17, 2017Assignees: KOREA INSTITUTE OF ENERGY RESEARCH, UNIVERSIDAD DE ANTIOQUIAInventors: Dong Hyun Chun, Ji Chan Park, Heon Jung, Fanor Mondragon Pérez, María Angélica Forgionny Flórez, Ho-Tae Lee, Jung-Il Yang, SungJun Hong
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Patent number: 9782355Abstract: The invention relates to a continuous method for producing inorganic or organic nanoparticles having multiple nuclei functionalised with proteins, using a T-type reactor that operates at high pressure, the primary particles that form the nuclei of the nanoparticles being smaller than 10 nm and said primary particles being immersed in a proteinaceous matrix that forms the nanoparticle in sizes of between 30 nm and 500 nm. The invention also relates to the nanoparticles produced by means of said method.Type: GrantFiled: April 13, 2012Date of Patent: October 10, 2017Assignee: UNIVERSIDAD DE ANTIOQUIAInventors: Herley Casanova Yepes, Lina Paola Higuita Gonzales
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Patent number: 9408395Abstract: The instant invention refers to a novel process for potentiating the production of substances with antifungal activity obtained from Ganoderma lucidum, using a technological device for the differential, qualitative and quantitative expression of proteins and other bioactive molecules, selected from the group consisting of polysaccharides, triterpenoids, fatty acids and ganoderic acids. The compositions containing said substances showed antifungal activity and mycelium growth and fungi ascospore germination inhibiting activity, amongst them Mycosphaerella fijiensis, primary pathogenic agent causing black Sigatoka disease in banana and plantain crop fields.Type: GrantFiled: June 18, 2013Date of Patent: August 9, 2016Assignee: Universidad De AntioquiaInventors: John Jairo Mira Castillo, Paola Andrea Zapata Ocampo, Lucía Atehortúa Garcés, Liuda Johana Sepúlveda Arango, Diego Fernando Rojas Vahos
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Patent number: 9168268Abstract: SAPONINS AND CHROMANS DERIVATIVES MIXTURE COMPOSITIONS AGAINST LEISHMANIASIS, TRYPANOSOMIASIS AMERICANA, MALARIA, TRYPANOSOMIASIS AFRICANA AND FASCIOLA HEPATICA, is a composition of saponins and chromans derivatives. The saponins are triterpene types and chromans are hydrazones derivatives. This composition is a therapeutic agent against tropical diseases.Type: GrantFiled: April 9, 2013Date of Patent: October 27, 2015Assignee: Universidad de AntioquiaInventors: Luis Fernando Echeverri-Lopez, Winston Quinones-Fletcher, Luis Fernando Torres-Roldan, Rosendo Ricardo Archbold-Joseph, Gustavo Adolfo Escobar-Pelaez, Sara Maria Robledo-Restrepo, Ivan Dario Velez-Bernal, Diana Lorena Munoz-Herrera, Adriana Maria Restrepo-Agudelo, Juan Alejandro Daza-Figueredo, Sergio Andres Pulido-Munoz, Edwin Andres Correa-Garces
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Patent number: 9145352Abstract: The use of quaternary halogenated ammonium salts for treating leishmaniasis infections and other parasitic diseases is described. Although there have been previous reports in which quaternary ammonium salts are used as antimalarial, antifungal, and antileishmanial compounds, the use of such salts containing a halogenated N-methyl substituent as a therapeutic agent against leishmaniasis had not been reported. The compounds described here, in specific those with a terminal arylalkenyl or diarylalkenyl moiety, are shown to inhibit the growth of Leishmania panamensis parasites, a known causative agent of leishmaniasis disease. In addition, the series of compounds are also extensive against malaria, Chagas disease, toxoplasmosis, and other parasitic diseases.Type: GrantFiled: May 30, 2012Date of Patent: September 29, 2015Assignees: UNIVERSIDAD DE CALDAS, UNIVERSIDAD DE ANTIOQUIA, THE BOARD OF TRUSTEES OF ILLINOIS STATE UNIVERSITYInventors: Luz Amalia Rios Vasquez, Rogelio Ocampo Cardona, Sandra Milena Duque, Sara Maria Robledo Restrepo, Ivan Dario Velez Bernal, David Leonardo Cedeño Medina, Marjorie Ann Jones
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Publication number: 20150231260Abstract: The invention relates to the process for producing a novel multi-purpose agglomerated cellulosic excipient. This excipient replaces many ingredients in the production of tablets due to the fact that it functions as a diluent, a disintegrating agent and an agglutinant, all in the same material. This material is therefore ideal for producing tablets in a dry process such as direct compression and dry granulation, saving production times and costs, especially in humidity- and heat-sensitive drugs. The tablets produced using said excipient disintegrate rapidly by explosion when they come into contact with water. In addition, said excipient can be used to produce loose and compact make-up powders due to its self-agglutinating and sensory properties on the skin, and also functions as a dispersant agent that can be used in the production of semisolid products.Type: ApplicationFiled: February 13, 2014Publication date: August 20, 2015Applicant: UNIVERSIDAD DE ANTIOQUIAInventors: John Jairo Rojas Camargo, Alvin de Jesús López López
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Publication number: 20140329324Abstract: A culture medium with natural inducer for biocomposites. In a general aspect the present disclosure is an indefinite functional culture medium with a natural inducer for biocomposites comprising: i) biomass plant incorporating high copper content, vitamins and trace minerals; and ii) a natural inducer, that is vegetable vinegar.Type: ApplicationFiled: November 22, 2012Publication date: November 6, 2014Applicant: Universidad de AntioquiaInventors: Amanda Ines Mejia Gallon, Carolina Arboleda Echavarria
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Publication number: 20140099377Abstract: The invention relates to a continuous method for producing inorganic or organic nanoparticles having multiple nuclei functionalised with proteins, using a T-type reactor that operates at high pressure, the primary particles that form the nuclei of the nanoparticles being smaller than 10 nm and said primary particles being immersed in a proteinaceous matrix that forms the nanoparticle in sizes of between 30 nm and 500 nm. The invention also relates to the nanoparticles produced by means of said method.Type: ApplicationFiled: April 13, 2012Publication date: April 10, 2014Applicant: UNIVERSIDAD DE ANTIOQUIAInventors: Herley Casanova Yepes, Lina Paola Higuita Gonzalez
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Patent number: 7772002Abstract: The method of the present invention comprises: Obtaining an explant from the seeds of Jatropha curcas; Putting the explant derived from the seed of Jatropha curcas in a culture medium; Breaking the intercellular unions of the explants tissue, which generates individuals cells; Incubating for a determined time the culture medium with the generated individual cells, that were multiplied; and, Extracting oil from the cells that multiplied from the individual cells generated from the explants derived from the Jatropha curcas seed.Type: GrantFiled: January 17, 2010Date of Patent: August 10, 2010Assignees: Universidad De Antioquia, Empresas Publicas De Medellin E.S.P.Inventors: Lucia Atehortua Garces, Sandra M. Correa
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Patent number: 7521238Abstract: The present invention provides a method and a culture medium for the production of food biomass by directly culturing seed kernel tissue, or seed cotyledonary differentiated tissue. The culture medium of the present invention contains at least DKW culture medium, Vitamin MS culture medium with an enriched concentration of thiamine, sacarose, kinetine, adenine, 2,4diclorofenoxiacético (2,4D), L-Glutamine, cysteine, ascorbic acid, and Gelrite®.Type: GrantFiled: December 20, 2006Date of Patent: April 21, 2009Assignee: Universidad De AntioquiaInventors: Lucia Atehortua, Esther Julia Naranjo, Andrea Lorena Herrera, Adriana Maria Gallego
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Patent number: 5681950Abstract: Withajardins A-D are new class of withanolides isolated from the leaves of Deprea orinocensis and characterized by having a bicyclic C-17.beta. system and hydroxyl group at C-14 and C-17. The bicyclic system consists of a lactone and a homocyclic ring with six carbon atoms unlike the acnistins which have a five-membered homocyclic ring. The two classes of compounds were differentiated and their structures were identified by a series of HMQC, HMBC and finally X-ray diffraction experiments. Withajardins and acnistins would seem to evolve along quite dissimilar biosynthetic pathways although both types of compound show a marked immunosupressive effect on in vitro cultures of human lymphocytes.Type: GrantFiled: September 28, 1994Date of Patent: October 28, 1997Assignees: Universidad De Antioquia, ColcienciasInventors: Luis F. Echeverri-Lopez, Luis F. Torres-Roldan, Luis F. Garcia-Moreno, Gloria Cardona-Rendon, Winston Quinones-Fletcher, Javier Gutierrez-Luis, Antonio Gonzalez-Gonzalez, Carlos A. Pelaez-Jaramillo, Mauricio Rojas-Lopez
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Patent number: 5614459Abstract: An improved process is provided for the preparation of activated carbon, which comprises swelling a carbonaceous material in a polar organic solvent containing an activating agent, removing the solvent, carbonizing the material, and removing the activating agent from the product. The activated carbon is produced in a short time with a high yield, and has a high surface area with a very narrow pore size distribution. Both the solvent and activating agents may be recovered and recycled.Type: GrantFiled: June 7, 1995Date of Patent: March 25, 1997Assignee: Universidad de AntioquiaInventors: Fanor Mondragon, John Fernandez, Alfredo Jaramillo, Gustavo Quintero