Exploració per tema "Quitosan"
Ara es mostren els items 1-19 de 19
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Antimony removal from water by a chitosan-Iron(III)[ChiFer(III)] biocomposite
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-02-01)
Article
Accés obertThe presence of antimony(III) in water represents a worldwide concern, mainly due to its high toxicity and carcinogenicity potential. It can be separated from water by the use of sustainable biopolymers such as chitosan ... -
Aplicación de biopolímeros a tejidos: el quitosano
(Universitat Politècnica de Catalunya, 2016-10-27)
Treball Final de Grau
Accés obert -
Bacterial cellulose-chitosan paper with antimicrobial and antioxidant activities
(2020-03-12)
Article
Accés obertThe production of paper-based bacterial cellulose-chitosan (BC-Ch) nanocomposites was accomplished following two different approaches. In the first, BC paper sheets were produced and then immersed in an aqueous solution ... -
Bottom-up layer-by-layer assembling of antibacterial freestanding nanobiocomposite films
(2018-07-27)
Article
Accés obertIn this study, freestanding nanobiocomposite films were obtained by the sequential deposition of biopolymer-capped silver nanoparticles (AgNPs) and hyaluronic acid (HA). At first, dispersions ofAgNPs decorated with chitosan ... -
Chitosan microcapsules: methods of the production and use in textile finishing
(Wiley, 2021-01-13)
Article
Accés obertBiopolymeric chitosan is considered a promising encapsulating agent for tex-tile applications due to its biocompatibility, lack of toxicity, antibacterial activ-ity, high availability, and low cost. After cellulose, it is ... -
Chitosan patterning on titanium implants
(2017-10-01)
Article
Accés obert
Realitzat a/amb: Universitat Politècnica de València. Centro de Biomateriales e Ingeniería TisularTitanium and its alloys are widely used in medical implants because of their excellent properties. However, bacterial infection is a frequent cause of titanium-based implant failure and also compromises its osseointegration. ... -
Chitosan-Based Drug Delivery System: Applications in Fish Biotechnology
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-06-01)
Article
Accés obertChitosan is increasingly used for safe nucleic acid delivery in gene therapy studies, due to well-known properties such as bioadhesion, low toxicity, biodegradability and biocompatibility. Furthermore, chitosan derivatization ... -
Development of chytosan and hyaluronic acid based bioinks for bioprinting technologies
(Universitat Politècnica de Catalunya, 2019-07-08)
Treball Final de Grau
Accés obert
Realitzat a/amb: Politecnico di Torino -
Differential neuronal and glial behavior on flat and micro patterned chitosan films
(2017-10-01)
Article
Accés obertChitosan is a biodegradable natural polysaccharide that has been widely studied for regenerative purposes in the central nervous system. In this study we assessed the in vitro glial and neuronal cells response to chitosan ... -
Enzymatic synthesis of a thiolated chitosan-based wound dressing crosslinked with chicoric acid
(Royal Society of Chemistry (RSC), 2018-10-26)
Article
Accés obertThis work describes the enzymatic synthesis of multifunctional hydrogels for chronic wound treatment using thiolated chitosan and the natural polyphenol chicoric acid. Gelation was achieved by ... -
Heterogenization of copper catalyst for the oxidation of phenol, a common contaminant in industrial wastewater
(2013-07)
Article
Accés obertAdvance oxidation process was employed as a pretreat- ment of industrial wastewater. For this purpose, the use of heavy metals as a catalyst is necessary but also complicated because homogeneous catalysts are difficult ... -
Improving the properties of nanocellulose by obtaining biodegradabale multifunctional biomaterials
(Universitat Politècnica de Catalunya, 2022-06-22)
Treball Final de Grau
Accés obertThe idea of a world without plastic is quite difficult to imagine, but not impossible. It is safe to say that almost every individual would want to cooperate and help our planet. Humanity is facing a huge environmental ... -
Influence of chitosan characteristics in the microencapsulation of essential oils
(Springer, 2021-03)
Article
Accés obertThe fight against nosocomial infections in hospitals, has promoted the use of microencapsulated essential oils on medical wearing uniforms. These types of microcapsules can be improved with the use of antimicrobial polymers ... -
Multifunctional ZnO NPs-chitosan-gallic acid hybrid nanocoating to overcome contact lenses associated conditions and discomfort
(2019-02-13)
Article
Accés obertContact lenses (CL) provide visual correction but their use may also induce several adverse effects causative of discomfort and conditions that lead to stop or discontinue their use. Discomfort is mainly caused by insufficient ... -
Quitina y quitosano. Nuevos materiales textiles.
(Instituto de Investigación Textil y Cooperación Industrial, 1996-07)
Article
Accés obertSe describen la quitina y el quitosano que a partir de ella se obtiene, así como las fuentes de las que proceden. Se trata de polimeros naturales transformables en fibras, con campos de aplicación muy interesantes en ... -
Recovery of neodymium (III) from aqueous phase by chitosan-manganese-ferrite magnetic beads
(2020-06-01)
Article
Accés obertNeodymium is a key rare-earth element applied to modern devices. The purpose of this study is the development of a hybrid biomaterial based on chitosan (CS) and manganese ferrite (MF) for the recovery of Nd(III) ions from ... -
Sorption of Hg(II) and Pb(II) ions on chitosan-iron(III) from aqueous solutions: Single and binary systems
(Multidisciplinary Digital Publishing Institute (MDPI), 2018-03-25)
Article
Accés obertThe present work describes the study of mercury Hg(II) and lead Pb(II) removal in single and binary component systems into easily prepared chitosan-iron(III) bio-composite beads. Scanning electron microscopy and energy-dispersive ... -
Synthesis of magnetic CMC bionanocomposite containing a novel biodegradable nanoporous polyamide selectively synthesized in ionic liquid as green media: Investigation on Nd+3, Tb+3, and Dy+3 rare earth elements adsorption
(2020-06-15)
Article
Accés obertIn this research study, the carboxymethyl chitosan/poly(pyrimidine-thiophene-amide)/Ni0.2Zn0.2Fe2.6O4 (CMC/P(PTA)/Ni0.2Zn0.2Fe2.6O4) was prepared as a novel magnetic bionanocomposite adsorbent. FE-SEM, EDX, NMR, XRD, FT-IR, ... -
The administration of chitosan-tripolyphosphate-DNA nanoparticles to express exogenous SREBP1a enhances conversion of dietary carbohydrates into lipids in the liver of Sparus aurata
(2019-08-01)
Article
Accés obertIn addition to being essential for the transcription of genes involved in cellular lipogenesis, increasing evidence associates sterol regulatory element binding proteins (SREBPs) with the transcriptional control of ...