Desarrollo metodológico de una tinta de biomaterial a base de pegda, dirigido al diseño de apósitos para úlceras crónicas de pie diabético
| dc.contributor.advisor | Solarte David, Víctor Alfonso | spa |
| dc.contributor.advisor | Becerra Bayona, Silvia Milena | spa |
| dc.contributor.apolounab | Becerra Bayona, Silvia Milena [silvia-milena-becerra-bayona] | |
| dc.contributor.author | Galeano Blanco, Marly Judith | spa |
| dc.contributor.cvlac | https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0001329391 | * |
| dc.contributor.cvlac | Becerra Bayona, Silvia Milena [0001568861] | |
| dc.contributor.googlescholar | Becerra Bayona, Silvia Milena [5wr21EQAAAAJ] | |
| dc.contributor.linkedin | Becerra Bayona, Silvia Milena [silvia-becerra-3174455a] | |
| dc.contributor.orcid | https://orcid.org/0000-0002-9856-1484 | * |
| dc.contributor.orcid | Becerra Bayona, Silvia Milena [0000-0002-4499-5885] | |
| dc.contributor.researchgate | Becerra Bayona, Silvia Milena [Silvia-Becerra-Bayona] | |
| dc.contributor.scopus | Becerra Bayona, Silvia Milena [36522328100] | |
| dc.coverage.campus | UNAB Campus Bucaramanga | spa |
| dc.coverage.spatial | Colombia | spa |
| dc.date.accessioned | 2021-03-16T18:42:22Z | |
| dc.date.available | 2021-03-16T18:42:22Z | |
| dc.date.issued | 2021 | |
| dc.degree.name | Ingeniero Biomédico | spa |
| dc.description.abstract | Actualmente los apósitos tipo hidrogel usados para el tratamiento de úlceras crónicas de pie diabético favorecen de manera limitada procesos de regeneración al ser apósitos bidimensionales, que sumado al potencial del PEGDA como biomaterial versátil en el campo de la ingeniería de tejidos, conviene desarrollar apósitos tridimensionales a base de PEGDA, lo que es posible mediante la bioimpresión 3D. De ahí que en esta investigación se evaluó la imprimibilidad de tinta de biomaterial a base de PEGDA usada en extrusión y fotopolimerización in-situ, con el fin de fabricar hidrogeles utilizando al Irgacure 2959 como fotoiniciador. Con este fin, se investigó el efecto que tiene la concentración de la solución precursora, además de los parámetros de bioimpresión tales como la velocidad de impresión, el flujo de material extruido y la altura de capa de impresión en la imprimibilidad. Sim embargo, pese al establecimiento de los mejores parámetros de bioimpresión: velocidad de impresión de 1 mm/s, altura de capa de 0.1 mm y flujo de 100%, los resultados demuestran que la viscosidad de la tinta de biomaterial a base de PEGDA requiere ser incrementada, para lograr la deposición de un filamento cilíndrico con una difusión de material mínima. Adicionalmente se llegó a la conclusión de que la intensidad de la luz ultravioleta de la bioimpresora debe ser mayor, para garantizar una polimerización eficiente y homogénea. La metodología desarrollada en este trabajo permite establecer las pautas de la fabricación de andamios a base de PEGDA, con el potencial uso en el diseño de matrices que lleven al desarrollo de alternativas terapéuticas tipo apósito, para el tratamiento de las úlceras crónicas de pie diabético, considerando la profundidad y la topografía de la úlcera. | spa |
| dc.description.abstractenglish | Currently the hydrogel-type dressings used for the treatment of chronic diabetic foot ulcers favor regeneration processes in a limited way as they are two-dimensional dressings, which added to the potential of PEGDA as a versatile biomaterial in the field of tissue engineering, it is convenient to develop three-dimensional dressings to PEGDA base, which is made possible by 3D bioprinting. Hence, in this research, the printability of PEGDA-based biomaterial ink used in extrusion and in-situ photopolymerization was evaluated, in order to manufacture hydrogels using Irgacure 2959 as a photoinitiator. To this end, the effect of precursor solution concentration, in addition to bioprinting parameters such as print speed, extrudate flow, and print layer height, on printability was investigated. However, despite the establishment of the best bioprinting parameters: printing speed of 1 mm / s, layer height of 0.1 mm and flow of 100%, the results show that the viscosity of the PEGDA-based biomaterial ink requires be increased, to achieve the deposition of a cylindrical filament with minimal material diffusion. Additionally, it was concluded that the intensity of the ultraviolet light from the bioprinter must be greater, to guarantee an efficient and homogeneous polymerization. The methodology developed in this work allows establishing the guidelines for the manufacture of PEGDA-based scaffolds, with the potential use in the design of matrices that lead to the development of dressing-type therapeutic alternatives for the treatment of chronic diabetic foot ulcers. considering the depth and topography of the ulcer. | eng |
| dc.description.degreelevel | Pregrado | spa |
| dc.description.learningmodality | Modalidad Presencial | spa |
| dc.description.tableofcontents | Capítulo 1. Problema u Oportunidad ................................................................................. 8 Introducción .................................................................................................................... 8 Planteamiento del Problema ............................................................................................ 9 Justificación ................................................................................................................... 11 Pregunta Problema ........................................................................................................ 12 Objetivo General ........................................................................................................... 12 Objetivos Específicos .................................................................................................... 12 Limitaciones y Delimitaciones ...................................................................................... 13 Capítulo 2. Marco Teórico ................................................................................................ 14 Hidrogeles de PEDGA: Características del PEDGA y Polimerización ........................ 14 Bioimpresión: Tipos de Bioimpresión .......................................................................... 16 Parámetros de Biompresión en Extrusión 3D ........................................................... 17 Biotintas: Definición y su Distinción de Tinta de Biomaterial ..................................... 20 Requerimientos del Material de Bioimpresión.............................................................. 20 Capítulo 3. Estado del Arte ............................................................................................... 22 Aplicaciones en la Liberación de Fármacos .................................................................. 22 Aplicaciones en la Ingeniería de Tejidos ...................................................................... 23 Aplicaciones en el Área de Biosensado ........................................................................ 24 Aplicaciones del PEGDA en la Regeneración de Heridas ............................................ 25 Bioimpresión 3D e Hidrogeles PEGDA........................................................................ 26 Composición del Hidrogel de PEGDA ..................................................................... 26 Evaluación de la Impribilidad de Tintas de Biomaterial en Extrusión 3D ............... 28 Capítulo 4. Metodología ................................................................................................... 33 Preparación de las Soluciones Precursoras de PEGDA. ............................................... 33 Impresión de Hidrogeles de PEGDA ............................................................................ 33 Evaluación de la Morfología del Filamento .................................................................. 36 Evaluación de la Fidelidad de la Forma ........................................................................ 39 Análisis Estadísticos ...................................................................................................... 41 Capítulo 5. Resultados y Análisis de Resultados .............................................................. 43 Resultados ..................................................................................................................... 43 Impresión de Hidrogeles de PEGDA ........................................................................ 43 Evaluación de la Morfología del Filamento.............................................................. 50 Evaluación de la Fidelidad de la Forma .................................................................... 53 Análisis de Resultados .................................................................................................. 59 Capítulo 6. Conclusiones y Recomendaciones ................................................................. 63 Referencias ........................................................................................................................ 64 | spa |
| dc.format.mimetype | application/pdf | spa |
| dc.identifier.instname | instname:Universidad Autónoma de Bucaramanga - UNAB | spa |
| dc.identifier.reponame | reponame:Repositorio Institucional UNAB | spa |
| dc.identifier.repourl | repourl:https://repository.unab.edu.co | spa |
| dc.identifier.uri | http://hdl.handle.net/20.500.12749/12431 | |
| dc.language.iso | spa | spa |
| dc.publisher.faculty | Facultad Ingeniería | spa |
| dc.publisher.grantor | Universidad Autónoma de Bucaramanga UNAB | spa |
| dc.publisher.program | Pregrado Ingeniería Biomédica | spa |
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| dc.rights.accessrights | info:eu-repo/semantics/openAccess | spa |
| dc.rights.accessrights | http://purl.org/coar/access_right/c_abf2 | spa |
| dc.rights.creativecommons | Atribución-NoComercial-SinDerivadas 2.5 Colombia | * |
| dc.rights.local | Abierto (Texto Completo) | spa |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.5/co/ | * |
| dc.subject.keywords | Biomedical engineering | eng |
| dc.subject.keywords | Engineering | eng |
| dc.subject.keywords | Medical electronics | eng |
| dc.subject.keywords | Biological physics | eng |
| dc.subject.keywords | Bioengineering | eng |
| dc.subject.keywords | Medical instruments and apparatus | eng |
| dc.subject.keywords | Medicine | eng |
| dc.subject.keywords | 3D bioprinting | eng |
| dc.subject.keywords | Diacrylated polyethylene glycol | eng |
| dc.subject.keywords | Printability | eng |
| dc.subject.keywords | Ulcers | eng |
| dc.subject.keywords | Foot diseases | eng |
| dc.subject.keywords | Clinical engineering | eng |
| dc.subject.keywords | Diabetic foot | eng |
| dc.subject.lemb | Ingeniería biomédica | spa |
| dc.subject.lemb | Ingeniería | spa |
| dc.subject.lemb | Biofísica | spa |
| dc.subject.lemb | Bioingeniería | spa |
| dc.subject.lemb | Medicina | spa |
| dc.subject.lemb | Úlceras | spa |
| dc.subject.lemb | Enfermedades de los pies | spa |
| dc.subject.lemb | Pie diabético | spa |
| dc.subject.proposal | Ingeniería clínica | spa |
| dc.subject.proposal | Electrónica médica | spa |
| dc.subject.proposal | Instrumentos y aparatos médicos | spa |
| dc.subject.proposal | Biompresión 3D | spa |
| dc.subject.proposal | Polietilenglicol diacrilado | spa |
| dc.subject.proposal | Imprimibilidad | spa |
| dc.title | Desarrollo metodológico de una tinta de biomaterial a base de pegda, dirigido al diseño de apósitos para úlceras crónicas de pie diabético | spa |
| dc.title.translated | Methodological development of a pegda-based biomaterial ink, aimed at the design of dressings for chronic diabetic foot ulcers | spa |
| dc.type.coar | http://purl.org/coar/resource_type/c_7a1f | |
| dc.type.driver | info:eu-repo/semantics/bachelorThesis | |
| dc.type.hasversion | info:eu-repo/semantics/acceptedVersion | |
| dc.type.local | Trabajo de Grado | spa |
| dc.type.redcol | http://purl.org/redcol/resource_type/TP |
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