Articles by Joana Magalhaes in JoVE
Basato su Dendrimero Nanopatterns irregolare alla localmente adesività di superficie di controllo: un metodo per dirigere la differenziazione Chondrogenic Ignasi Casanellas1,2, Anna Lagunas3,1, Iro Tsintzou1, Yolanda Vida4,5, Daniel Collado4,5, Ezequiel Pérez-Inestrosa4,5, Cristina Rodríguez-Pereira6, Joana Magalhaes3,6, Pau Gorostiza1,3,7, José A. Andrades8,3, José Becerra8,3,5, Josep Samitier1,3,2 1Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), 2Department of Engineering Electronics, University of Barcelona (UB), 3Networking Biomedical Research Center (CIBER), 4Instituto de Investigacin Biomédica de Málaga (IBIMA), Department of Organic Chemistry, Universidad de Málaga (UMA), 5Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, 6Unidad de Bioingeniería Tisular y Terapia Celular (GBTTC-CHUAC), Grupo de Reumatolog ía, Instituto de Investigación Biomèdica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), 7Institució Catalana de Recerca i Estudis Avançats (ICREA), 8Instituto de Investigación Biomédica de Málaga (IBIMA), Department of Cell Biology, Genetics and Physiology, Universidad de Málaga (UMA) Un metodo per ottenere nanopatterns irregolare Dendrimero-based che consentono il controllo su scala nanometrica di locale arginina-glicina-aspartico (RGD) superficie densità dell'acido è descritto e applicato per lo studio del differenziamento cellulare adesione e chondrogenic.
Other articles by Joana Magalhaes on PubMed
Synthesis and Characterization of Sensitive Hydrogels Based on Semi-interpenetrated Networks of Poly[2-ethyl-(2-pyrrolidone) Methacrylate] and Hyaluronic Acid Journal of Biomedical Materials Research. Part A. | Pubmed ID: 22829520 Sensitive hydrogels attract interest due to their soft wet appearance and shape response to environmental variations. The synthesis and characterization of semi-interpenetrated hydrogels obtained by radical-induced polymerization of 2-ethyl-(2-pyrrolidone)methacrylate (EPM) in the presence of different concentrations of hyaluronic acid (HA) using N,N'-methylene-bisacrylamide or triethylene glycol dimethacrylate as crosslinker, followed by freeze-drying, are described. Polymeric systems were characterized by NMR, FTIR, SEM, TGA, and DMA. PEPMHA hydrogels' mechanical properties and swelling were found to be intimately related to HA concentration and crosslinker. The swelling response was assessed for temperature and pH variation in order to study the behavior of the hydrogels. We found that the presence of HA in PEPM polymeric systems induced a sensitivity to pH variation rather than temperature. Finally, the biocompatibility profile of the hydrogels was evaluated, using mesenchymal stem cells. Cell adhesion and proliferation results revealed the non-cytotoxicity of the systems. We estimate that PEPMHA hydrogels can be used for applications in tissue engineering and for the controlled release of bioactive compounds.
Effect of Hydrogen Sulfide Sources on Inflammation and Catabolic Markers on Interleukin 1β-stimulated Human Articular Chondrocytes Osteoarthritis and Cartilage. | Pubmed ID: 24831018 Hydrogen sulfide (H2S), the third gasotransmitter together with NO and CO, is emerging as a regulator of inflammation. To test if it might offer therapeutic value in the treatment of osteoarthritis (OA) we evaluated the effects of two exogenous sources of H2S, NaSH and GYY4137, on inflammation and catabolic markers that characterize OA.