Buscar
Mostrando ítems 201-210 de 305
Impact of thermal annealing on wettability and antifouling characteristics of alginate poly-l-lysine polyelectrolyte multilayer films
(Elsevier Science, 2016-09)
Polyelectrolyte multilayers (PEMs) of poly- l-lysine (PLL) and alginic acid sodium salt (Alg) are fabricated applying the layer by layer technique and annealed at a constant temperature; 37, 50 and 80 °C, for 72 h. Atomic ...
Soluble TTF catalyst for the oxidation of cathode products in Li-Oxygen battery: A chemical scavenger
(Pergamon-Elsevier Science Ltd, 2015-11)
One of the challenges for the success of electric vehicles is to achieve a non aqueous Li-O2 battery efficient in the oxidation of solid Li2O2 during battery charging. Bruce et al. have proposed that soluble tetrathiofulvalene ...
Complexes of xylan and synthetic polyelectrolytes. Characterization and adsorption onto high quality unbleached fibres
(Elsevier, 2015-03)
In this work, polyelectrolyte complexes (PECs) were formed by adding polyacrylic acid (PAA) or 4-O-methylglucuronoxylan (Xyl) on poly(allylamine hydrochloride) (PAH) solutions, at different ionic strength and neutral pH. ...
High Resistivity Lipid Bilayers Assembled on Polyelectrolyte Multilayer Cushions: An Impedance Study
(American Chemical Society, 2016-06)
Supported membranes on top of polymer cushions are interesting models of biomembranes as cell membranes are supported on a polymer network of proteins and sugars. In this work lipid vesicles formed by a mixture of 30% ...
Interaction of polysaccharide-protein complex from Agaricus blazei with Langmuir and Langmuir-Blodgett films of phospholipids
(Elsevier B.V., 2009-02-01)
The use of natural substances in health applications may be hampered by the difficulties in establishing the mechanisms of action, especially at molecular-level. the protein-polysaccharide complex extracted from the mushroom ...
Electrochemical and associated techniques for the study of the inclusion complexes of thymol and β-cyclodextrin and its interaction with DNA
(Springer, 2018)
Thymol, a potent agent for microbial, fungal, and bacterial disease, has low aqueous solubility and it is genotoxic, i.e., is capable of damaging deoxyribonucleic acid (DNA). This possible problem of DNA toxicity needs to ...
Análisis de los efectos de la temperatura y humedad en sensores de gas a base de resonadores de cuarzo
(Benemérita Universidad Autónoma de Puebla, 2017-07)
Hace años, Alexander Graham Bell pregunto: “¿Puedes medir la diferencia entre un tipo de olor y otro? Es obvio que tenemos diferentes tipos de olores, desde el olor de las violetas hasta el olor de las rosas asafétidas. ...
Gramicidin ion channels in a lipid bilayer supported on polyelectrolyte multilayer films: An electrochemical impedance study
(Royal Society of Chemistry, 2017-11)
Supported membranes on polymer cushions are of fundamental interest as models for cell membranes. The use of polyelectrolyte multilayers (PEMs) assembled by the layer by layer (LbL) technique as supports for a bilayer ...
Cysteamine-modified ZIF-8 colloidal building blocks: Direct assembly of nanoparticulate MOF films on gold surfaces via thiol chemistry
(Elsevier, 2018-06)
Chemical modification of metal organic framework (MOF) nanocrystal colloids was used to endow them with chemical affinity for gold substrates. Modified nanocrystals were then used as building blocks for rapid and selective ...
Ni(II)-modified solid substrates as a platform to adsorb His-tag proteins
(Royal Society of Chemistry, 2013-07)
This work investigated a simple and versatile modification to a solid substrate to develop electrochemical bio-recognition platforms based on bio-affinity interactions between histidine (His)-tagged proteins and Ni(II) ...