Buscar
Mostrando ítems 61-70 de 336
Smart polyaniline nanoparticles with thermal and photothermal sensitivity
(IOP, 2014)
Conductive polyaniline nanoparticles (PANI NPs) are synthesized by oxidation of aniline with
persulfate in acid media, in the presence of polymeric stabilizers: polyvinilpyrrolidone (PVP),
poly(N-isopropylacrylamide) ...
Reversible Switching of the Dirac Point in Graphene Field-Effect Transistors Functionalized with Responsive Polymer Brushes
(American Chemical Society, 2019-06)
The reversible control of the graphene Dirac point using external chemical stimuli is of major interest in the development of advanced electronic devices such as sensors and smart logic gates. Here, we report the coupling ...
Active and smart biodegradable packaging based on starch and natural extracts
(Elsevier, 2017-11)
Active and smart biodegradable films from cassava starch and glycerol with 5 wt.% of different natural extractssuch as green tea and basil were obtained by casting. Their functional capacity as antioxidants and their ...
Effect of yerba mate extract on the performance of starch films obtained by extrusion and compression molding as active and smart packaging
(Elsevier, 2020-09)
Native or hydrolyzed starch and yerba mate extract (10 wt.% or 20 wt.%) films prepared by extrusion and compression molding were investigated. Native starch material (TPNS) exhibited lower water vapor permeability and ...
Evaluation of pH-sensitive polyurethane/2-diethylaminoethyl methacrylate hybrids potentially useful for drug delivery developments
(Editions Sante, 2015-12)
Smart sensitive polymers have been used to improve processes in drug delivery. In this article, we evaluate the behavior of polyurethane/N,N-diethylaminoethyl methacrylate hybrids (PU/DEA) as pH-responsive polymers potentially ...
Two-step enzymatic strategy for the synthesis of a smart phenolic polymer and further immobilization of a β-galactosidase able to catalyze transglycosydation reaction
(Elsevier Science, 2018-10)
A rapid and efficient enzymatic procedure for the preparation of an immobilized β-galactosidase has been described. In a first step, soybean peroxidase was used to catalyze the polymerization of a strategically activated ...
Novel polymer electrolytes based on gelatin and ionic liquids
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
This study describes the results of the characterization of polymer electrolytes using gelatin matrix doped with europium triflate and/or different ionic liquids. Samples of solvent-free electrolytes were prepared and ...
Synthesis of a smart conductive block copolymer responsive to heat and near infrared light
(MDPI AG, 2019-10)
A method for the synthesis of a linear block copolymer (PNIPAM-b-PANI), containing a thermoresponsive block (poly(N-isopropylacrylamide), PNIPAM) and a Near Infrared (NIR) light-absorbing block (polyaniline, PANI), is ...
Innovation in Additive Manufacturing Using Polymers : A Survey on the Technological and Material Developments
(2022-04-01)
This review summarizes the most recent advances from technological and physico-chem-ical perspectives to improve several remaining issues in polymeric materials’ additive manufacturing (AM). Without a doubt, AM is experimenting ...