Polysaccharide polyelectrolyte multilayer coating on poly(ethylene terephthalate)

Pérez‐Álvarez, Leyre; Lizundia, Erlantz; Hoyo, Sara del; Sagasti, Ariane; Ruiz‐Rubio, Leire; Vilas, José Luis

doi:10.1002/pi.5116

Cited by 18 publications

(12 citation statements)

References 32 publications

(57 reference statements)

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“…[25,26]. HA konposatu oso hidrofilikoa da, biobateragarria eta biodegradagarria [26]; beraz biomaterial moduan oso egokia da.…”

Section: Sarreraunclassified

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Multigeruza polimerikoak: mediku-protesietarako materialen ezaugarriak hobetzeko bidea

Valverde

Pérez‐Álvarez

2018

EKAIA

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Laburpena: Biomedikuntza arloan inplante moduan erabiltzeko material berrien eskaera handia dago, baina errefus arazoak sortzen dituzte biobateragarritasun kontuak direla eta.Lan honetan azalduko dugu nola eraldatu dugun bi substratu motaren gainazala. Bat ezorganikoa izango da eta bestea polimerikoa. Geruzaz geruzako («layer by layer») estrategiaz baliatuta, azido hialuroniko eta kitosanozko multigeruzak sortuko dira.Kitosanoa fluoreszenteki markatu eta mikroskopio konfokalean fluoreszentziahaz kun dea behatu ondoren, ondorioztatu da geruzak modu arrakastatsu batean sortu direla. Honi esker, materialaren hidrofilitatea areagotzea lortu da, eta horrela, bakterioen aurkako gainazala lortzeaz gainera materialaren biobateragarritasuna handituko da modu merke eta sinple batean.Hitz gakoak: Geruzaz geruzako, biobateragarri, kitosanoa, azido hialuronikoa.Abstract: There is a great demand for new materials in the field of biomedicine to be used as implants, however they cause rejection problems due to their lack of biocompatibility. In this work two substrates (inorganic and polymeric) will be surface modified using the layer by layer strategy (LbL), in order to construct hyaluronic and chitosan multilayers. It has been proven that the layers were successfully built by fluorescent confocal microscopy by means of the increase of fluorescence along layers deposition after fluorescent labelling of chitosan. Thanks to this, it has been possible to increase the hydrophilicity of the surfaces enhancing antibacterial properties and getting more biocompatible materials in a simple and inexpensive way.

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“…[25,26]. HA konposatu oso hidrofilikoa da, biobateragarria eta biodegradagarria [26]; beraz biomaterial moduan oso egokia da.…”

Section: Sarreraunclassified

“…[25,26]. HA konposatu oso hidrofilikoa da, biobateragarria eta biodegradagarria [26]; beraz biomaterial moduan oso egokia da. Bestalde, bere egituran azido karboxilikoak ditu eta bere pka 3-4 bitartekoa denez, pH zabal batean negatiboki kargatuta dago [27] eta polianioi moduan erabil daiteke polielektrolitodun multigeruzetan.…”

Section: Sarreraunclassified

Multigeruza polimerikoak: mediku-protesietarako materialen ezaugarriak hobetzeko bidea

Valverde

Pérez‐Álvarez

2018

EKAIA

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“…For instance, a negative surface generally exhibits a reduced bacterial adhesion due to the electric double layer repulsion, since most of bacterial cell surfaces carries a negative charge [3]. On the contrary, materials with positive charge can be used to inhibit bacterial growth, since they can attract and damage the bacterial cell walls, killing bacteria [4][5][6][7][8][9]. The increase in the surface free energy and the decrease in the contact angle leads to a reduced bacterial adhesion [10].…”

Section: Introductionmentioning

confidence: 99%

Exploring the potential of polyethylene terephthalate in the design of antibacterial surfaces

Çaykara

Sande

Azóia

et al. 2020

Med Microbiol Immunol

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Polyethylene terephthalate (PET) is one of the most used polymeric materials in the health care sector mainly due to its advantages that include biocompatibility, high uniformity, mechanical strength and resistance against chemicals and/or abrasion. However, avoiding bacterial contamination on PET is still an unsolved challenge and two main strategies are being explored to overcome this drawback: the anti-adhesive and biocidal modification of PET surface. While bacterial adhesion depends on several surface properties namely surface charge and energy, hydrophilicity and surface roughness, a biocidal effect can be obtained by antimicrobial compounds attached to the surface to inhibit the growth of bacteria (bacteriostatic) or kill bacteria (bactericidal). Therefore, it is well known that granting antibacterial properties to PET surface would be beneficial in the prevention of infectious diseases. Different modification methods have been reported for such purpose. This review addresses some of the strategies that have been attempted to prevent or reduce the bacterial contamination on PET surfaces, including functionalisation, grafting, topographical surface modification and coating. Those strategies, particularly the grafting method seems to be very promising for healthcare applications to prevent infectious diseases and the emergence of bacteria resistance.

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“…[10][11][12][13] Thus, much attention has been paid to the preparation of materials with a multilayered structure. Several methods have been used to prepare materials with such a structure: layer-by-layer assembly, [14][15][16][17] layer multiplying coextrusion, 18,19 pressure-induced flow processing, 20 uncontrolled casting of polymer/clay mixtures, [21][22][23][24] ice-templating and sintering of ceramics, 23,24 bidirectional freezing 25 etc. Various functionalities or improved mechanical performance have been obtained due to such a structure.…”

Section: Introductionmentioning

confidence: 99%

Enhanced fracture energy during deformation through the construction of an alternating multilayered structure for polyolefin blends

Zhou

Deng

et al. 2018

Polymer International

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The effects of polymer blend components on the phase morphology, crystallization behavior and mechanical performance of materials processed by high speed thin‐wall injection molding (HSTWIM) and compression molding (CM) processes were investigated. High density polyethylene (HDPE) and polypropylene (PP) containing different ratios of rubber phase (0%, 18% and 21%) were selected to construct different blends. HSTWIM is shown to trigger the formation of a multilayered structure for these blends with oriented polymer crystals and epitaxial growth of HDPE crystals on PP. Such a layered structure is thought to provide a good template for morphological control of various functional polymer composites. Moreover, the addition of rubber in the multilayered structure with the rubber phase partially distributed between layers is observed. These issues are thought to be responsible for the much enhanced fracture energy compared with specimens from CM. The structural details and formation mechanism of these layered structures consisting of different compositions were investigated. Such a study could provide some guidelines for the preparation of high performance bio‐mimic materials or various functional polymer composites with alternating multilayered structure. © 2018 Society of Chemical Industry

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Polysaccharide polyelectrolyte multilayer coating on poly(ethylene terephthalate)

Abstract: Stable polysaccharide multilayers of chitosan (CHI) and hyaluronic acid (HA) are successfully adsorbed onto hydrophobic poly(ethylene terephthalate) (PET) using layer‐by‐layer assembly after hydrolysis of PET with NaOH.

Cited by 18 publications

References 32 publications

Multigeruza polimerikoak: mediku-protesietarako materialen ezaugarriak hobetzeko bidea

Multigeruza polimerikoak: mediku-protesietarako materialen ezaugarriak hobetzeko bidea

Exploring the potential of polyethylene terephthalate in the design of antibacterial surfaces

Enhanced fracture energy during deformation through the construction of an alternating multilayered structure for polyolefin blends

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