Browsing by Title
Now showing items 29976-29995 of 39300
-
Polyimides for piezoelectric materials, magnetoelectric nanocomposites and battery separators: synthesis and characterization
(2016-09-13)Se ha sintetizado una serie de poliimidas y copoliimidas que contienen grupos nitrilo en su estructura, y posteriormente han sido polarizadas por corona con objeto de dotarlas de comportamiento piezoeléctrico. Las condiciones ... -
Polylactic acid as a promising sustainable plastic packaging for edible oils
(Elsevier, 2023-04)The influence of renewable packaging materials on the oxidative stability of sunflower oil was investigated to evaluate whether they could be used as alternatives to conventional plastics. Two renewable bottle materials, ... -
Polymer Colloids: Current Challenges, Emerging Applications, and New Developments
(American Chemical Society, 2023-03)Polymer colloids are complex materials that have the potential to be used in a vast array of applications. One of the main reasons for their continued growth in commercial use is the water-based emulsion polymerization ... -
Polymer-based electrolytes for all-solid-state lithium-sulfur batteries.
(2019-12-04)The development of more efficient and competitive batteries is crucial for a complete transition to more sustainable energy models. In this regard, all-solid-state lithium-sulfur batteries, especially those based on ... -
Polymer-Optical-Fiber Lasers and Amplifiers Doped with Organic Dyes
(MDPI, 2011-09)Polymer optical fibers (POFs) doped with organic dyes can be used to make efficient lasers and amplifiers due to the high gains achievable in short distances. This paper analyzes the peculiarities of light amplification ... -
Polymeric materials with multiple crystalline phases: structure, morphology and crystallization
(2021-12-01)El objetivo de esta tesis doctoral es el análisis y la comparación de sistemas poliméricos multifásicos con al menos dos fases cristalizables, para diseñar y desarrollar nuevos materiales con propiedades mejoradas. La ... -
Polymeric nanocarriers: A promising tool for early diagnosis and efficient treatment of colorectal cancer
(Elsevier, 2022-07)Background: Colorectal cancer (CRC) is the third most prevalent type of cancer for incidence and second for mortality worldwide. Late diagnosis and inconvenient and expensive current diagnostic tools largely contribute to ... -
Polymeric Shape-Memory Micro-Patterned Surface for Switching Wettability with Temperature
(MDPI, 2015-09)An innovative method to switch the wettability of a micropatterned polymeric surface by thermally induced shape memory effect is presented. For this purpose, first polycyclooctene (PCO) is crosslinked with dycumil peroxide ... -
Polymers and rheology: A tale of give and take
(Elsevier, 2023-04)Polymers and rheology were both born in the twenties of the last century, fruit of the disruptive and creative scientific atmosphere of this decade. The development of polymer science and technology in the last almost 100 ... -
Polymers for the preparation of heterogeneous catalysts
(2021-11-23)In this work it has been studied the effect different polymers (or also the same polymer with different properties) can make in the preparation of catalysts Ni-La/Al2O3 by the wet impregnation with excess of water. In order ... -
Polymorphism in Non-Fullerene Acceptors Based on Indacenodithienothiophene
(Wiley, 2021-07)Organic solar cells incorporating non-fullerene acceptors (NFAs) have reached remarkable power conversion efficiencies of over 18%. Unlike fullerene derivatives, NFAs tend to crystallize from solutions, resulting in bulk ... -
Polymorphisms in miRNA processing genes and their role in osteosarcoma risk
(Wiley, 2015-02-07)Background The possible associations between genetic variants and osteosarcoma risk have been analyzed without conclusive results. Those studies were focused mainly on genes of biologically plausible pathways. However, ... -
Polymorphisms in the methotrexate transport pathway: a new tool for MTX plasma level prediction in pediatric acute lymphoblastic leukemia
(Lippincott, Williams & Wilkins, 2013-02)Objectives Methotrexate (MTX) is an important component of therapy for pediatric acute lymphoblastic leukemia (ALL). Treatment with MTX often causes toxicity, which can necessitate dose reduction or treatment cessation. ... -
Polymorphisms of the SLCO1B1 gene predict methotrexate-related toxicity in childhood acute lymphoblastic leukemia
(Wiley, 2011-10)Background: Methotrexate (MTX) is an important component of the therapy for childhood acute lymphoblastic leukemia. Treatment with high-dose MTX often causes toxicity, recommending a dose reduction and/or cessation of ... -
Polyoxometalate-Based Hybrids with 3d- and 4f-Metal Complexes Bearing Multidentate Organic Ligands From Magnetoluminescent Molecular Species to Extended Frameworks with Sorption Ability
(2023-03-30)This dissertation explores the reactivity of polyoxometalates (POMs) - a well-known class of anionic metal-oxo clusters- towards 3d- or 4f-metal complexes of multidentate organic ligands. In the first part of this work, ... -
Polyphase tectonic reworking of serpentinites and chlorite-tremolite-talc rocks (SW Spain) from the subduction forearc to intracontinental emplacement
(Wiley, 2023-05)The petrostructural and geochronological study of a poorly known ultramafic unit from SW Spain (Badajoz–Córdoba belt) combined with previous structural data permits disclosure of a history of metasomatism, tectono-metamorphism, ... -
Polyphenol Iongel Patches with Antimicrobial, Antioxidant and Anti-Inflammatory Properties
(MDPI, 2023-02-21)There is an actual need for developing materials for wound healing applications with anti-inflammatory, antioxidant, or antibacterial properties in order to improve the healing performance. In this work, we report the ... -
Polyphenol Profile and Quantitative Assessment of the Flavonoid Kaempferitrin in Wild and Cultivated Brazilian Amazonian Uncaria guianensis (Rubiaceae)
(Sociedade Brasileira de Química, 2021-08)The Amazonian Rubiaceae species Uncaria guianensis (UG) is locally used as antiinflammatory, antitumor, antidiabetic, anti-ulcers, and others. The phenolic content of its leaves is characterized by the great predominance ... -
Polyphenolic profile of butterhead lettuce cultivar by ultrahigh performance liquid chromatography coupled online to UV–visible spectrophotometry and quadrupole time-of-flight mass spectrometry
(Elsevier, 2018-04-18)In the present study, the butterhead lettuce cultivar was analyzed by ultrahigh performance liquid chromatography (UHPLC) coupled online to diode array detection (DAD), electrospray ionization (ESI) and quadrupole ... -
Polyplexes based on ultrapure oligochitosans: design, characterization and applications for gene therapy.
(2016-03-02)Esta tesis doctoral se basa en el uso de oligoquitosanos ultrapuros (UOC) como vectores no-virales para el transporte de genes. El quitosano (Ch) es un polímero natural compuesto de cadenas ß-(1-4) D-glucosamina y ...