Examinando por Materia "FOTOLITOGRAFÍA"
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Publicación Acceso abierto Fabricación de microagujas en fotorresina SU-8 mediante fotolitografía para aplicaciones biomédicas(2014-04-20) Lopera-Aristizábal, M. (Mónica); Lopera-Aristizábal, S. (Sergio); Vélez-Restrepo, J. M. (Juan Manuel )Hormonal illnesses like diabetes demand the frequent use of fluid sampling and drug delivery procedures, which produces traumas on skin tissues, as a result of conventional needles penetration. This fact motivates the development of alternative technologies that decrease tissue damage and contribute to improve the quality of life of the patients. This topic constitutes an active field of research in many companies and universities around the world. This paper presents preliminary results of the fabrication of microneedle arrays, using the technique of SU-8 thick film photolithography, previously standardized by the Group of Materials Science and Technology of the National University of Colombia in Medellín. Micrographs of the obtained hollowed and solid needles of different sizes are presented and goals and limitations of the proposed methodology are discussed.