Catalina Villamil Ballesteros

Catalina Villamil Ballesteros


Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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5 March 2020 in Polymers
Verified
Journal Article
Open access
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CBCatalina Villamil Ballesteros
Catalina Villamil Ballesteros
HPHugo Ramiro Segura Puello
Hugo Ramiro Segura Puello
JLJorge Lopez-Garcia
Jorge Lopez-Garcia
ABAndres Bernal-Ballen
Andres Bernal-Ballen
DMDiana Lorena Nieto Mosquera
Diana Lorena Nieto Mosquera
YBYuli Alexandra Neira Bejarano
Yuli Alexandra Neira Bejarano
Decellularized membranes (DM) were obtained from bovine amniotic membranes (BAM) using four different decellularization protocols, based on physical, chemical, and mechanical treatment. The new material was used as a biological scaffold for in vitro skin cell culture. The DM were characterized using hematoxylin-eosin assay, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR-ATR), and differential scanning calorimetry (DSC). The in vitro cytotoxicity of DM was evaluated using MTT. The efficacy of decellularization process was assessed through DNA quantification and electrophoresis. All the used protocols showed a high effectiveness in terms of elimination of native cells, confirmed by DNA extraction and quantification, electrophoresis, and SEM, although protocol IV removes the cellular contents and preserve the native extracellular matrix (ECM) architecture which it can be considered as the most effective in terms of decellularization. FTIR-ATR and DSC on the other hand, revealed the effects of decellularization on the biochemical composition of the matrices. There was no cytotoxicity and the biological matrices obtained were a source of collagen for recellularization. The matrices of protocols I, II, and III were degraded at day 21 of cell culture, forming a gel. The biocompatibility in vitro was demonstrated; hence these matrices may be deemed as potential scaffold for epithelial tissue regeneration.