@Article{MouraMoMaEsEsMaPa:2022:EvShMe,
               author = "Moura, Nayara Koba de and Morgado, Guilherme Ferreira de Melo and 
                         Martins, Eduardo Ferreira and Escanio, Camila Alves and Esposito, 
                         Elisa and Marini, Juliano and Passador, F{\'a}bio Roberto",
          affiliation = "{Universidade Federal de S{\~a}o Paulo (UNIFESP)} and 
                         {Universidade Federal de S{\~a}o Paulo (UNIFESP)} and 
                         {Universidade Federal de S{\~a}o Paulo (UNIFESP)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Universidade Federal 
                         de S{\~a}o Paulo (UNIFESP)} and {Universidade Federal de S{\~a}o 
                         Carlos (UFSCar)} and {Universidade Federal de S{\~a}o Paulo 
                         (UNIFESP)}",
                title = "Evaluation of Shape Memory in Poly(lactic acid)/ thermoplastic 
                         Polyurethane Filaments with Carbon Nanotubes and Graphene 
                         Nanoplatelets",
              journal = "Macromolecular Symposia",
                 year = "2022",
               volume = "406",
               number = "1",
                pages = "e2200020",
                month = "Dec.",
             keywords = "carbon nanotubes, graphene nanoplatelets, medical sutures, 
                         poly(lactic acid), thermoplastic polyurethane.",
             abstract = "Medical sutures are used in tissues to join the edges of wounds to 
                         help a healing process or stabilize implants. The patient's 
                         feverish state can lead to premature suture rupture, due to the 
                         increase in body temperature and the swelling due to an 
                         inflammatory process in the wound. Some materials can adapt to 
                         body temperature and may prevent this disruption, being polymers 
                         with shape memory an alternative for this application, such as 
                         poly(lactic acid) (PLA) and thermoplastic polyurethane (TPU). The 
                         addition of carbon nanotubes (MWCNT) and graphene nanoplatelets 
                         (GNP) can induce antimicrobial activity since the wound and/or 
                         suture tend to facilitate the proliferation of microorganisms, 
                         which can harm or avoid the healing process. In this work, PLA/TPU 
                         (60/40) and nanocomposites with 2 wt% of GNP and hybrids with 1 
                         wt% of MWCNT and 1 wt% of GNP are prepared using the extrusion 
                         process. The samples are characterized by tensile test, 
                         thermogravimetric analysis (TGA), differential scanning 
                         calorimetry, field emission scanning electron microscopy, shape 
                         memory, and antimicrobial activity. The polymer blend and 
                         nanocomposites present an average shape recovery (\≈6.5% in 
                         length) and the addition of nanofillers induced antimicrobial 
                         activity, being these materials promising for application in 
                         antimicrobial sutures with shape memory.",
                  doi = "10.1002/masy.202200020",
                  url = "http://dx.doi.org/10.1002/masy.202200020",
                 issn = "1022-1360",
             language = "en",
           targetfile = "Macromolecular Symposia - 2022 - Moura - Evaluation of Shape 
                         Memory in Poly lactic acid thermoplastic Polyurethane.pdf",
        urlaccessdate = "30 abr. 2024"
}