Colección INTI-SNRD


Título: Fabrication of Gelatin Methacrylate (GelMA) scaffolds with nano- and micro-topographical and morphological features
Fuente: Nanomaterials, 9(1)
Autor/es: Aldana, Ana Agustina; Malatto, Laura; Ur Rehman, Muhammad Atiq; Boccaccini, Aldo Roberto; Abraham, Gustavo Abel
Materias: Andamios; Metacrilatos; Gelatinas; Biomateriales
Editor/Edición: MDPI; 2019
Licencia: http://creativecommons.org/licenses/by/4.0/
Afiliaciones: Aldana, Ana Agustina. Universidad Nacional de Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Malatto, Laura. Instituto Nacional de Tecnología Industrial. INTI-Micro y Nanoelectrónica; Argentina
Ur Rehman, Muhammad Atiq. University of Erlangen-Nuremberg. Department of Materials Science and Engineering; Alemania
Boccaccini, Aldo Roberto. University of Erlangen-Nuremberg. Department of Materials Science and Engineering; Alemania
Abraham, Gustavo Abel. Institute of Space Technology Islamabad; Pakistán

Resumen: The design of biomimetic biomaterials for cell culture has become a great tool to study and understand cell behavior, tissue degradation, and lesion. Topographical and morphological features play an important role in modulating cell behavior. In this study, a dual methodology was evaluated to generate novel gelatin methacrylate (GelMA)-based scaffolds with nano and micro topographical and morphological features. First, electrospinning parameters and crosslinking processes were optimized to obtain electrospun nanofibrous scaffolds. GelMA mats were characterized by SEM, FTIR, DSC, TGA, contact angle, and water uptake. Various nanofibrous GelMA mats with defect-free fibers and stability in aqueous media were obtained. Then, micropatterned molds produced by photolithography were used as collectors in the electrospinning process. Thus, biocompatible GelMA nanofibrous scaffolds with micro-patterns that mimic extracellular matrix were obtained successfully by combining two micro/nanofabrication techniques, electrospinning, and micromolding. Taking into account the cell viability results, the methodology used in this study could be considered a valuable tool to develop patterned GelMA based nanofibrous scaffolds for cell culture and tissue engineering.
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