Browsing by Subject "Polímers -- Biodegradació"
Now showing items 1-20 of 66
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A Color indicator based on 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and a biodegradable poly(ester amide) for detecting bacterial contamination
(Multidisciplinary Digital Publishing Institute (MDPI), 2024-06-18)
Article
Open AccessBacterial contamination is a hazard in many industries, including food, pharmaceuticals, and healthcare. The availability of a rapid and simple method for detecting this type of contamination in sterile areas enables ... -
Aerogels based on biodegradable polymers and clay
(Universitat Politècnica de Catalunya, 2015-12-16)
Doctoral thesis
Open AccessFoam-like aerogels based on biodegradable polymers and sodium montmorillonite (Na+-MMT) clay were prepared through an environmentally friendly freeze-drying process. Both synthesized and bio-based polymers were utilized ... -
Análisis de propiedades de recubrimientos biodegradables
(Universitat Politècnica de Catalunya, 2018-06-29)
Master thesis
Restricted access - confidentiality agreementEl objetivo del presente proyecto es mejorar las propiedades de barrera al vapor de agua y al agua líquida de un soporte en base papel mediante la aplicación de un novedoso recubrimiento biodegradable de ácido poliláctico. El ... -
Anhydric maleic functionalization and polyethylene glycol grafting of lactide-co-trimethylene carbonate copolymers
(2014-09-01)
Article
Restricted access - publisher's policyLactide and trimethylene carbonate copolymers were successfully grafted with polyethylene glycol via previous functionalization with maleic anhydride and using N,N'-diisopropylcarbodiimide as condensing agent. Maleinization ... -
Antimicrobial PHAs coatings for solid and porous tantalum implants
(2019-10-01)
Article
Open AccessBiomaterial-associated infections (BAI) are the major cause of failure of indwelling medical devices. The risk of BAI can end dramatically in the surgical removal of the affected device. Therefore, a major effort must be ... -
Aplicación de MALDI-TOF Imaging y HPLC-MS/MS al estudio de la degradación del polímero policaprolactonadiol en diferentes medios acuáticos
(Universitat Politècnica de Catalunya, 2017-11-20)
Doctoral thesis
Open AccessWater is essential for life, human activities and ecosystems. The global climate change together the population increase causes an imbalance between the demand of water and the available water resources.. All these factors ... -
Application of ultrasound-assisted compression and 3D-printing semi-solid extrusion techniques to the development of sustained-release drug delivery systems based on a novel biodegradable aliphatic copolyester
(2024-05)
Article
Open AccessThe purpose of this study was to investigate the ability of two advanced hot-processing technologies, Ultrasound-Assisted Compression (USAC) and 3D-printing Semi-solid Extrusion (SSE), to manufacture sustained-release drug ... -
Avaluació de la DBO per disminució de la pressió parcial. Aplicació a l’estudi de la biodegradació
(Universitat Politècnica de Catalunya, 2014-09)
Master thesis (pre-Bologna period)
Open AccessEl consum de plàstics a les societats actuals representa un elevat volum de residus recalcitrants. La investigació en polímers biodegradables es planteja com una alternativa viable per disminuir l’impacte ambiental d’aquests ... -
Avaluació de la degradació de polímers en aigua de mar segons norma ASTM D6691
(Universitat Politècnica de Catalunya, 2015-09)
Bachelor thesis
Open AccessAquest projecte pretén estudiar la biodegradació de quatre polímers diferents, alguns biodegradables i altres no, en aigua de mar a diferents temperatures, per tal d’establir un model amb el qual poder estimar el temps de ... -
Bioactive films based on starch from white, red, and black rice to food application
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-02-21)
Article
Open AccessPackages from renewable sources have been the focus of many studies, due to the consumer needs for high-quality food, environmental concern related to the inadequate discard of packaging, low percentage of packaging ... -
Biodegradability and biocompatibility of copoly(butylene sebacate-co-terephthalate)s
(2017-01-01)
Article
Open AccessIn the present study poly (butylene sebacate-co-terephthalate)s having different compositions were synthesized with a high yield and a random distribution by thermal transesterification of poly (butylene sebacate) and poly ... -
Biodegradable copolyesters of poly(hexamethylene terephthalate) containing bicyclic 2,4:3,5-di-O-methylene-D-glucarate units
(2014-11-01)
Article
Restricted access - publisher's policyA set of copolyesters (PHTxGluxy) with compositions ranging between 90/10 and 50/50 in addition to the parent homopolyesters poly(hexamethylene terephthalate) (PHT) and PHGlux, are prepared by the melt polycondensation of ... -
Biodegradable nanofibrous scaffolds as smart delivery vehicles for amino acids
(2017)
Article
Open AccessThe encapsulation of amino acids (AAs) and their correct preservation before they are ingested are challenging tasks. Nonpolar (l-alanine and l-phenylalanine), polar (l-cysteine hydrochloride and l-asparagine), and charged ... -
Biodegradable Poly(Ester Amide)s: Synthesis and Applications
(Nova Publishers, 2011)
Part of book or chapter of book
Open Access -
Biodegradació de nous materials segons la norma 14855
(Universitat Politècnica de Catalunya, 2018-06-21)
Bachelor thesis
Open AccessDes del seu origen a la primera meitat del segle XX, els plàstics han anat prenent cada cop més protagonisme a les nostres vides, generant en conseqüència cada cop més quantitat de residus plàstics arreu del món. Una de ... -
Biosynthesis of poly(g-L-glutamic acid) and comparative studies on the biodegradability of the g- and a-enantiomeric forms of the poly (glutamic acid) by Bacillus Licheniformis NCIMB 11709
(Nova Science Publishers, Inc, 2013)
Part of book or chapter of book
Restricted access - publisher's policyPoly (y-glutamic acid), a novel polyanionic and multifunctional macromolecule synthesized by Bacillus species, has attracted considerable attention because of its eco-friendly, biodegradable and biocompatible characteristics. ... -
Caracterización, elaboración de scaffolds y estudio de la bioactividad de un Poli (3-hidroxioctanoato-co-3-hidroxihexanoato) para aplicaciones biomédicas
(Universitat Politècnica de Catalunya / Euskal Herriko Unibertsitatea, 2013)
Master thesis (pre-Bologna period)
Restricted access - author's decision
Covenantee: Universidad del País Vasco - Euskal Herriko UnibertsitateaEste proyecto se desarrolla en el campo de los polímeros biodegradables con aplicaciones biomédicas. Se estudiaran los polihidroxialcanoatos (PHA), que son un tipo de poliésteres lineales sintetizados por algunos microorganismos ... -
Determinació del número de ramificacions segons % d’extensor de cadena en PLA
(Universitat Politècnica de Catalunya, 2015-06)
Master thesis (pre-Bologna period)
Open AccessL’àcid polilàctic (PLA) és un polímer biodegradable que està convertint-se en una alternativa als combustibles fòssils. No obstant, presenta males prestacions a altes temperatures. Des de l’UPC en col·laboració amb el ... -
Effect of curcumin on thermal degradation of poly(glycolic acid) and poly(e-caprolactone) blends
(2020-11-01)
Article
Open AccessThe influence of curcumin on the thermal stability and degradation kinetics of poly(glycolic acid) (PGA), poly-e-caprolactone (PCL) and their blend has been investigated in detail using thermogravimetric analysis. A 50/50 ... -
Effects of ultrasonic vibration on the micro-molding processing of polylactide
(2014)
Article
Restricted access - publisher's policyA new ultrasonic micro-molding system was used to process polylactide (PLA) and fabricate reduced dimension specimens. Plasticization and molding of PLA were achieved by applying ultrasonic waves after feeding the polymer ...
