0000000000432620

AUTHOR

Maria Letizia Focarete

showing 3 related works from this author

New composite materials made up of nanofibers and hydrogel as biomimetic scaffolds for human pluripotent stem cell culture

2014

poliammidoammineelettrofilaturaidrogeliplasma non-termico a pressione atmosfericaacido poli(L-lattico)composite materials hydrogels plasma stem cells
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Poly-l-Lactic Acid Nanofiber-Polyamidoamine Hydrogel Composites: Preparation, Properties, and Preliminary Evaluation as Scaffolds for Human Pluripote…

2016

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 …

Materials Chemistry2506 Metals and AlloysPluripotent Stem CellsAgmatinePolymers and PlasticsDouble bondpolyamidoaminesPolyestersCell Culture TechniquesNanofibersBioengineering02 engineering and technology010402 general chemistry01 natural sciencesBiomaterialsPolyamidoaminePolyaminesMaterials ChemistryHydrogel compositehuman pluripotent stem cellHumansatmospheric pressure nonequilibrium plasmaInduced pluripotent stem cellatmospheric pressure nonequilibrium plasma; electrospun poly-l-lactic nanofibers; human pluripotent stem cells; poly-l-lactic acid-AGMA1 hydrogel composites; polyamidoamines; biotechnology; bioengineering; biomaterials; polymers and plastics; materials chemistry2506 metals and aloyschemistry.chemical_classificationAddition reactionPolymers and PlasticAqueous solutionTissue ScaffoldsHydrogels021001 nanoscience & nanotechnologyBiomaterial0104 chemical sciencesChemical engineeringchemistryCovalent bondNanofiberelectrospun poly-l-lactic nanofiberpoly-l-lactic acid-AGMA1 hydrogel compositeAmine gas treating0210 nano-technologyBiotechnology
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Effects of Nylon 6,6 Nanofibrous Mats on Thermal Properties and Delamination Behavior of High Performance CFRP Laminates

2014

none 8 no Nylon 6,6 electrospun nanofibrous membranes interleaved in Carbon Fibre Reinforced Plastic (CFRP) laminates have been proposed as a means to provide a higher threshold value to delamination on structural sites where composites are more prone to develop such failure. A model, highly crosslinked thus inherently brittle, epoxy matrix was selected for its high Young’s modulus and glass transition temperature exceeding 250 °C. The influence of the Nylon 6,6 nanofibres on the curing behaviour of the matrix and on the thermal and dynamic mechanical properties of the cured resin was investigated. These properties were related to the features of the epoxy resin and of the resin impregnated…

Materials sciencePOLYMERIC NANOFIBERSPolymers and Plasticselectronspun nanofibrous matModuluschemistry.chemical_compoundSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineBrittlenessFracture toughnessPOLYMER–MATRIX COMPOSITES (PMCS)Materials ChemistryPOLYMERIC NANOFIBERS; DELAMINATION; THERMAL PROPERTIES; POLYMER–MATRIX COMPOSITES (PMCS)Composite materialCuring (chemistry)Carbon fiber reinforced polymerthermal propertiedelamination fracture toughnessDELAMINATIONGeneral ChemistryEpoxyComposite laminatesNylon 6chemistryvisual_artCeramics and Compositesvisual_art.visual_art_mediumTHERMAL PROPERTIESSettore CHIM/07 - Fondamenti Chimici Delle TecnologieCFRP laminate
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