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Revista Ingeniería Biomédica
versión impresa ISSN 1909-9762
Resumen
LOPERA ARISTIZABAL, Mónica M; LOPERA ARISTIZABAL, Sergio y VELEZ RESTREPO, Juan Manuel. FABRICACIÓN DE MICROAGUJAS EN FOTORRESINA SU-8 MEDIANTE FOTOLITOGRAFÍA PARA APLICACIONES BIOMÉDICAS. Rev. ing. biomed. [online]. 2007, vol.1, n.2, pp.69-73. ISSN 1909-9762.
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.
Palabras clave : Photolithography; Microneedles; Microfabrication; Drug delivery systems; SU-8.