Poly-l-Lactic Acid Nanofiber-Polyamidoamine Hydrogel Composites: Preparation, Properties, and Preliminary Evaluation as Scaffolds for Human Pluripotent Stem Cell Culturing

Nicolò Mauro, Chiara Gualandi, Livia Visai, Nora Bloise, Nicolò Mauro, Matteo Gherardi, Romolo Laurita, Anna Liguori, Maria Letizia Focarete, Maurilio Sampaolesi, Vittorio Colombo, Elisabetta Ranucci, Paolo Ferruti, Amedea Manfredi

Risultato della ricerca: Article

5 Citazioni (Scopus)

Abstract

Electrospun poly-l-lactic acid (PLLA) nanofiber mats carrying surface amine groups, previously introduced by nitrogen atmospheric pressure nonequilibrium plasma, are embedded into aqueous solutions of oligomeric acrylamide-end capped AGMA1, a biocompatible polyamidoamine with arg-gly-asp (RGD)-reminiscent repeating units. The resultant mixture is finally cured giving PLLA-AGMA1 hydrogel composites that absorb large amounts of water and, in the swollen state, are translucent, soft, and pliable, yet as strong as the parent PLLA mat. They do not split apart from each other when swollen in water and remain highly flexible and resistant, since the hydrogel portion is covalently grafted onto the PLLA nanofibers via the addition reaction of the surface amine groups to a part of the terminal acrylic double bonds of AGMA1 oligomers. Preliminary tested as scaffolds, the composites prove capable of maintaining short-term undifferentiated cultures of human pluripotent stem cells in feeder-free conditions.
Lingua originaleEnglish
pagine (da-a)1533-1544
Numero di pagine12
RivistaMacromolecular Bioscience
Volume16
Stato di pubblicazionePublished - 2016

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All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Bioengineering
  • Biomaterials
  • Polymers and Plastics
  • Materials Chemistry

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Mauro, N., Gualandi, C., Visai, L., Bloise, N., Mauro, N., Gherardi, M., Laurita, R., Liguori, A., Focarete, M. L., Sampaolesi, M., Colombo, V., Ranucci, E., Ferruti, P., & Manfredi, A. (2016). Poly-l-Lactic Acid Nanofiber-Polyamidoamine Hydrogel Composites: Preparation, Properties, and Preliminary Evaluation as Scaffolds for Human Pluripotent Stem Cell Culturing. Macromolecular Bioscience, 16, 1533-1544.