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Listar por palabra clave "Chitosan"

Mostrando ítems 1-20 de 110

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A cell-free approach with a supporting biomaterial in the form of dispersed microspheres induces hyaline cartilage formation in a rabbit knee model

Zurriaga Carda, Javier; Lastra, Maria L.; Antolinos-Turpin, Carmen M.; Morales-Román, Rosa M.; Sancho-Tello, María; Perea-Ruiz, Sofía; Milián, Lara; Fernández, Juan M.; Cortizo, Ana M.; Carda, Carmen; Gallego-Ferrer, Gloria; Gómez Ribelles, José Luís (John Wiley & Sons, 2020-05)

[EN] The objective of this study was to test a regenerative medicine strategy for the regeneration of articular cartilage. This approach combines microfracture of the subchondral bone with the implant at the site of the ...
A new waterborne chitosan-based polyurethane hydrogel as a vehicle to transplant bone marrow mesenchymal cells improved wound healing of ulcers in a diabetic rat model

Viezzer, Christian; Mazzuca, Rafael; Machado, Denise Cantarelli; Forte, María Magdalena de Camargo; Gómez Ribelles, José Luís (Elsevier, 2020-03-01)

[EN] Foot ulcers, a common complication of diabetes, can cause physical incapacity and are derived from several factors, including poor wound healing. New therapeutic strategies are needed to minimize this complication for ...
Acrylamide formation and quality properties of chitosan based batter formulations

Sansano Tomás, Mariola; Castelló Gómez, María Luisa; Heredia Gutiérrez, Ana Belén; Andrés Grau, Ana María (Elsevier, 2016-10-12)

[EN] The potential of chitosan to mitigate acrylamide formation has been already demonstrated. The two main objectives of this study were: 1) to select the most adequate degree of deacetylation (DD) and molecular weight ...
ANTIFUNGAL CHITOSAN-BASED FILMS AND COATINGS CONTAINING ESSENTIAL OILS FOR FRUIT APPLICATIONS

Perdones Montero, Ángela (Universitat Politècnica de València, 2016-12-15)

[EN] Chitosan films and coatings have been obtained, by incorporating different essential oils (EO) and using different homogenization conditions of the film forming emulsions, in order to obtain antifungal materials for ...
Antimicrobial activity of polysaccharide films containing essential oils

Sánchez-González, Laura; Cháfer, Maite; Hernández Pérez, Manuel; Chiralt, A.; González-Martínez, Chelo (Elsevier, 2011-08)

Antimicrobial films were prepared by incorporating different concentrations of bergamot (BO), lemon (LO) and tea tree (TTO) essential oils (EO), into chitosan (CH) and hydroxypropylmethylcellulose (HPMC) films. Their ...
Application of chitosan-sunflower oil edible films to pork meat hamburgers

Vargas, Maria; Albors, A.; Chiralt, A. (Elsevier, 2011)

[EN] Edible films were prepared by combining high molecular weight chitosan with sunflower oil. Films were obtained by casting and were applied to the surface of pork meat hamburgers. Chitosan-based films increased the ...
Application of edible coatings to partially dehydrated pineapple for use in fruit cereal products

Talens Oliag, Pau; Pérez-Masià, Rocío; Fabra Rovira, María José; Vargas, Maria; Chiralt, A. (Elsevier, 2012)

[EN] The present work analyzes the application method and the effectiveness of edible coatings based on caseinates or chitosan in partially dehydrated pineapple for its use in dry fruit-cereal products. Commercial breakfast ...
Biodegradable chitosan-poly(epsilon-caprolactone) dialdehyde copolymer networks for soft tissue engineering

Gámiz González, Mª Amparo; Vidaurre, Ana; Gómez Ribelles, José Luís (Elsevier, 2017)

[EN] Chitosan/PCL block-copolymer networks were synthesized using different amounts of aldehyde end capped polycaprolactone as crosslinking agent. The crosslinking reaction was performed by dissolving both components in ...
Biodegradable hydrogels based on water-soluble chitosan for cell transplant

Gámiz González, Mª Amparo (Universitat Politècnica de València, 2016-11-02)

[EN] The aim of tissue engineering is to develop functional biological substitutes to replace or restore damaged tissues by preparing three-dimensional scaffolds able to accommodate cells plus signaling factors to promote ...
Candidate Polyurethanes Based on Castor Oil (Ricinus communis), with Polycaprolactone Diol and Chitosan Additions, for Use in Biomedical Application

Uscategui, Yomaira L.; Diaz, Luis E.; Gómez-Tejedor, José-Antonio; Vallés Lluch, Ana; Vilariño, Guillermo; Serrano, María-Antonia; Valero, Manuel F. (MDPI AG, 2019-01-10)

[EN] Polyurethanes are widely used in the development of medical devices due to their biocompatibility, degradability, non-toxicity and chemical versatility. Polyurethanes were obtained from polyols derived from castor ...
Caracterització de recobriments comestibles a base de quitosà i propolis

Vicent Oltra, Anna Teresa (Universitat Politècnica de València, 2013-04-12)

[ES] En este trabajo se analizan las propiedades reológicas, densidad, tamaño de partícula y potencial- de cuatro formulaciones a base de quitosano y propóleo, así como las propiedades ópticas, mecánicas i microestruc ...
Cellular hydrogels based on pH-responsive chitosan-hydroxyapatite system

Rogina, Anamarija; Ressler, Antonia; Matie, Igor; Gallego-Ferrer, Gloria; Marijanovic, Inga; Ivankovic, Marica; Ivankovic, Hrvoje (Elsevier, 2017-06-15)

[EN] The development of bioactive injectable system as cell carrier with minimal impact on viability of encapsulated cells represents a great challenge. In the present work, we propose a new pH-responsive chitosan-hydrox ...
Characterization of polysaccharide-essential oil biodegradable coatings. Application to tomato fruit

Tampau, Alina (Universitat Politècnica de València, 2015-10-27)

[ES] Se prepararon películas biodegradables utilizando quitosano o metilcelulosa con aceites esenciales (AE) de albahaca, tomillo u orégano. El tamaño de las partículas y las propiedades reológicas de las dispersiones ...
Chitosan-silica hybrid porous membranes

Pandis, Christos; Madeira, Sara; Matos, Joana; Kyritsis, Apostolos; Mano, Joao; Gómez Ribelles, José Luís (Elsevier, 2014-09-01)

Chitosan-silica porous hybrids were prepared by a novel strategy in order to improve the mechanical properties of chitosan (CHT) in the hydrogel state. The inorganic silica phase was introduced by sal-gel reactions in ...
Desarrollo de films y recubrimientos comestibles bio-activos como soporte de agentes antioxidantes y antimicrobianos

Bonilla Lagos, Maria Jeannine (Universitat Politècnica de València, 2013-05-02)

RESUMEN El objetivo de esta tesis fue la obtención y caracterización de films biodegradables con características antimicrobianas y/o antioxidantes a partir de quitosano (CH). Para modular sus propiedades y mejorar ...
Desarrollo de hilos antimicrobianos a base de algodón reciclado y fibras de quitosano

Uysal, Serkan (Universitat Politècnica de València, 2019-09-09)

[ES] El proyecto proporciona información de como reducir el impacto ambiental textil mediante el reciclaje de prendas y tejidos convencionales por procesos de reutilización de fibras recicladas de algodón. El desarrollo ...
Desarrollo de un diluyente libre de antibióticos para inseminación artificial en conejos

Ferriz Núñez, Celia (Universitat Politècnica de València, 2024-07-21)

[ES] La aplicación generalizada, no regulada y no terapéutica de antibióticos ha llevado a la aparición de bacterias multirresistentes. Como resultado, la Organización Mundial de la Salud ha reconocido este problema como ...
Design and characterization of microspheres for a 3D mesenchymal stem cell culture

Lastra, María Laura; Gómez Ribelles, José Luís; Cortizo, Ana María (Elsevier, 2020-12)

[EN] Recent studies have shown the relevance of growing mesenchymal stem cells (MSCs) in three-dimensional environments with respect to the monolayer cell culture on an adherent substrate. In this sense, macroporous scaffolds ...
Determination of the parameters affecting electrospun chitosan fiber size distribution and morphology

Sencadas, Vitor Joao Gomes Da Silva; Correia, Daniela Maria; Areias Cepa, Anabela; Botelho, G.; Fonseca, A.M.; Neves, I.C.; Gómez Ribelles, José Luís; Lanceros Mendez, Senen (Elsevier, 2012-01-15)

The production of chitosan nanofiber mats by electrospinning presents serious difficulties due to the lack of suitable solvents and the strong influence of processing parameters on the fiber properties. Two are the main ...
Determining the influence of N-acetylation on water sorption in chitosan films

Gámiz González, Mª Amparo; Piskin, Ayse Esra; Pandis, C.; Chatzimanolis-Moustakas, C.; Kyritsis, A.; Marí Soucase, Bernabé; Gómez Ribelles, José Luís; Vidaurre Garayo, Ana Jesús (Elsevier, 2015-11-20)

Water absorption in chitosan rapidly increases when the deacetylation degree decreases between 85 and 45%. This seems to contradict the fact that water absorption in chitin is much lower than that of chitosan. The aim ...