Desarrollo de un biomaterial a partir de peróxido de calcio encapsuladas en alginato como alternativa de prevención para la isquemia distal digital generada por vasopresores

dc.contributor.advisorBecerra Bayona, Silvia Milenaspa
dc.contributor.advisorSolarte David, Víctor Alfonsospa
dc.contributor.apolounabBecerra Bayona, Silvia Milena [silvia-milena-becerra-bayona]
dc.contributor.authorGarcía Rivero, Diana Cristinaspa
dc.contributor.authorRodríguez Suárez, Jose Luisspa
dc.contributor.authorVelandia Quintero, Yuri Tatianaspa
dc.contributor.cvlachttps://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0001568861*
dc.contributor.cvlacBecerra Bayona, Silvia Milena [0001568861]
dc.contributor.googlescholarhttps://scholar.google.es/citations?hl=es&user=5wr21EQAAAAJ*
dc.contributor.googlescholarBecerra Bayona, Silvia Milena [5wr21EQAAAAJ]
dc.contributor.linkedinBecerra Bayona, Silvia Milena [silvia-becerra-3174455a]
dc.contributor.orcidhttps://orcid.org/0000-0002-4499-5885*
dc.contributor.orcidBecerra Bayona, Silvia Milena [0000-0002-4499-5885]
dc.contributor.researchgatehttps://www.researchgate.net/profile/Silvia_Becerra-Bayona*
dc.contributor.researchgateBecerra Bayona, Silvia Milena [Silvia-Becerra-Bayona]
dc.contributor.scopushttps://www.scopus.com/authid/detail.uri?authorId=36522328100*
dc.contributor.scopusBecerra Bayona, Silvia Milena [36522328100]
dc.coverage.campusUNAB Campus Bucaramangaspa
dc.coverage.spatialColombiaspa
dc.date.accessioned2021-03-15T23:01:12Z
dc.date.available2021-03-15T23:01:12Z
dc.date.issued2020
dc.degree.nameIngeniero Biomédicospa
dc.description.abstractEl shock séptico, es una de las principales complicaciones que presentan los pacientes que padecen sepsis. Este corresponde a las alteraciones metabólicas, celulares, y circulatorias que aumentan el riesgo de mortalidad y producen hipotensión tisular grave, caracterizada clínicamente por la vasodilatación excesiva. Como tratamiento de esta condición, se hace uso de vasopresores tales como la norepinefrina, la cual lleva al aumento de la presión arterial media (PAM), con el fin de mantener un flujo arterial óptimo. No obstante, esto puede llevar a complicaciones como la pérdida de la micro perfusión periférica, generando así la isquemia, que en la mayoría de los pacientes se refleja en la necrosis distal digital. En la actualidad, este tipo de complicación se trata con la resección quirúrgica del tejido afectado, siendo los dedos generalmente los amputados. Sin embargo, no se cuenta con alternativas profilácticas que eviten la aparición de isquemia distal digital, y es necesario desarrollar alternativas terapéuticas que permitan evitarla. Por consiguiente, se fabricaron perlas de alginato, estandarizando su velocidad de agitación y concentración, para posteriormente encapsular en ellas peróxido de calcio (CPO) y evaluar tanto sus propiedades mecánicas por medio de pruebas de compresión, como su liberación de oxígeno por medio del método de desplazamiento de fluido. Los resultados obtenidos de la elaboración de las perlas de alginato demuestran que liberan entre 800 μL y 1200 μL de oxígeno en un periodo sostenido de 5 días, y que el aumento de la concentración de alginato es directamente proporcional a su módulo de elasticidad (entre 100 kPa y 150 kPa), además, al encapsular CPO, sus propiedades mecánicas se ven alteradas, aumentando los valores hasta cinco veces.spa
dc.description.abstractenglishSeptic shock is one of the main complications presented by patients suffering from sepsis. This corresponds to metabolic, cellular, and circulatory alterations that increase the risk of mortality and produce severe tissue hypotension, clinically characterized by excessive vasodilation. As a treatment for this condition, vasopressors such as norepinephrine are used, which leads to an increase in mean arterial pressure (MAP), in order to maintain optimal arterial flow. However, this can lead to complications such as loss of peripheral micro perfusion, thus generating ischemia, which in most patients is reflected in distal digital necrosis. At present, this type of complication is treated with surgical resection of the affected tissue, the fingers generally being amputees. However, there are no prophylactic alternatives that prevent the appearance of distal digital ischemia, and it is necessary to develop therapeutic alternatives that allow it to be avoided. Therefore, alginate beads were manufactured, standardizing their stirring speed and concentration, to later encapsulate calcium peroxide (CPO) in them and evaluate both their mechanical properties through compression tests, and their oxygen release through the method. fluid displacement. The results obtained from the production of alginate beads show that they release between 800 μL and 1200 μL of oxygen in a sustained period of 5 days, and that the increase in alginate concentration is directly proportional to its modulus of elasticity (between 100 kPa and 150 kPa), in addition, when encapsulating CPO, its mechanical properties are altered, increasing the values ​​up to five times.eng
dc.description.degreelevelPregradospa
dc.description.learningmodalityModalidad Presencialspa
dc.description.tableofcontentsCapítulo 1. Problema u Oportunidad………………………………………………………9 1.1 Introducción………………………………………………………………….9 1.2 Problemática…………………………………………………………………9 1.3 Justificación………………………………………………………………….10 1.4 Pregunta problema…………………………………………………………...11 1.5 Objetivo general……………………………………………………………...11 1.6 Objetivos específicos………………………………………………………...12 1.7 Limitaciones y delimitaciones……………………………………………….12 Capítulo 2. Marco teórico………………………………………………………………….13 2.1 Sepsis………………………………………………………………………...13 2.2 Terapias de oxígeno………………………………………………………….16 2.2.1 Terapia de oxígeno tópica……………………………………………….17 2.2.2 Agentes liberadores de oxígeno…………………………………………17 2.2.3 Peróxido de calcio……………………………………………………….19 2.3 Sistemas de encapsulación para materiales generadores de oxígeno………..21 2.3.1 Andamios………………………………………………………………...21 2.3.2 Hidrogeles………………………………………………………………..22 2.3.3 Hidrogeles de alginato…………………………………………………………...23 2.4 Propiedades mecánicas………………………………………………………26 Capítulo 3. Estado del Arte………………………………………………………………...27 Capítulo 4. Metodología…………………………………………………………………...34 4.1 Fabricación de perlas de alginato…………………………………………….34 4.2 Inmovilización de CPO en perlas de alginato………………………………..35 4.3 Evaluación de las características de fabricación……………………………..36 4.4 Estandarización del método de evaluación de liberación oxígeno…………...37 4.5 Análisis estadísticos………………………………………………………….39 Capítulo 5. Resultados y Análisis de Resultados…………………………………………..40 5.1 Resultados……………………………………………………………………40 5.1.1 Fabricación de perlas de alginato………………………………………..40 5.1.2 Fabricación de perlas de alginato con CPO……………………………..47 5.1.3 Caracterización mecánica……………………………………….……….50 5.1.4 Liberación de oxígeno…………………………………………….……..51 5.2 Análisis de resultados…………………………………………………….......53 Capítulo 6. Conclusiones y recomendaciones………………………………………....…...57 Referencias………………………………………………………………………………....58spa
dc.format.mimetypeapplication/pdfspa
dc.identifier.instnameinstname:Universidad Autónoma de Bucaramanga - UNABspa
dc.identifier.reponamereponame:Repositorio Institucional UNABspa
dc.identifier.repourlrepourl:https://repository.unab.edu.cospa
dc.identifier.urihttp://hdl.handle.net/20.500.12749/12427
dc.language.isospaspa
dc.publisher.facultyFacultad Ingenieríaspa
dc.publisher.grantorUniversidad Autónoma de Bucaramanga UNABspa
dc.publisher.programPregrado Ingeniería Biomédicaspa
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.accessrightshttp://purl.org/coar/access_right/c_abf2spa
dc.rights.creativecommonsAtribución-NoComercial-SinDerivadas 2.5 Colombia*
dc.rights.localAbierto (Texto Completo)spa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/co/*
dc.subject.keywordsBiomedical engineeringeng
dc.subject.keywordsEngineeringeng
dc.subject.keywordsMedical electronicseng
dc.subject.keywordsBiological physicseng
dc.subject.keywordsBioengineeringeng
dc.subject.keywordsMedical instruments and apparatuseng
dc.subject.keywordsMedicineeng
dc.subject.keywordsAlginateeng
dc.subject.keywordsCalcium peroxideeng
dc.subject.keywordsDressingeng
dc.subject.keywordsIschemiaeng
dc.subject.keywordsOxygen releaseeng
dc.subject.keywordsBlood circulation disorderseng
dc.subject.keywordsSepsiseng
dc.subject.lembIngeniería biomédicaspa
dc.subject.lembIngenieríaspa
dc.subject.lembBiofísicaspa
dc.subject.lembBioingenieríaspa
dc.subject.lembMedicinaspa
dc.subject.lembTrastornos de la circulación sanguíneaspa
dc.subject.lembSepsisspa
dc.subject.proposalIngeniería clínicaspa
dc.subject.proposalClinical engineeringspa
dc.subject.proposalElectrónica médicaspa
dc.subject.proposalInstrumentos y aparatos médicosspa
dc.subject.proposalAlginatospa
dc.subject.proposalPeróxido de calciospa
dc.subject.proposalApósitospa
dc.subject.proposalIsquemiaspa
dc.subject.proposalLiberación de oxígenospa
dc.titleDesarrollo de un biomaterial a partir de peróxido de calcio encapsuladas en alginato como alternativa de prevención para la isquemia distal digital generada por vasopresoresspa
dc.title.translatedDevelopment of a biomaterial from calcium peroxide encapsulated in alginate as a preventive alternative for distal digital ischemia generated by vasopressorsspa
dc.type.coarhttp://purl.org/coar/resource_type/c_7a1f
dc.type.driverinfo:eu-repo/semantics/bachelorThesis
dc.type.hasversioninfo:eu-repo/semantics/acceptedVersion
dc.type.localTrabajo de Gradospa
dc.type.redcolhttp://purl.org/redcol/resource_type/TP

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