Tailoring struc - tures and perme - ation properties of asymmetric nanocomposite cellulose acetate / silver membranes with bactericide activity
نویسندگان
چکیده
Luís Amaral João Figueirinhas The CeFEMA newsletter intents to disseminate the research activities in materials science and condensed matter physics developed in the Center to a wide scientific and non-scientific community. In this third number, some of the most recent achievements or ongoing projects are highlighted. Nanocomposite and nanostructured membranes for applications from water treatment to medical devices and artificial organs are focused in two contributions. Functional monoand few-atomic layer materials for nanoelectronics are also featured. Finally, another contribution reports on a work on NMR of liquid crystal dendrimers, which was reviewed in a recently published book by the authors. The featured works are good examples of the excellence and impact of the science developed in CeFEMA.
منابع مشابه
Synthesis of Calcium Fluoride Ultrafine Particles for the Preparation of Integral Asymmetric Cellulose Acetate/Calcium Fluoride Membranes
The present work reports on the synthesis of cellulose acetate (CA) asymmetric membranes with the incorporation of inorganic fluorides, CaF2 particles. These fillers of polymeric composites can, according to the literature, promote the ordering of the polymer matrix, which can lead to interesting permeation properties. In order to achieve that, fluorite (CaF2 ) fine particles were prepared by a...
متن کاملAntibacterial Activity and Conductivity Properties of Nanocomposites based on Cellulose Acetate Nanofibers and Copper Nanoparticles
in this work, nanocomposites comprising copper nanoparticle in cellulose acetate (CA)matrices have been prepared. In this manner, Copper nanoparticles prepared by its saltreduced by sodium borohydride at various concentration. Then this nanoparticle solution wasmixed with polymer solution and electrospun by electrospinning device. The abovenanocomposite has been successfully detected by SEM, ED...
متن کاملThe Ultrafiltration Performance of Cellulose Acetate Asymmetric Membranes: A New Perspective on the Correlation with the Infrared Spectra
Integral asymmetric cellulose acetate (CA) membranes were casted by phase-inversion with formamide varying content - 22, 30 and 34% - as pore promoter. These membranes, CA-22, CA-30 and CA-34, were analyzed by infrared spectroscopy in attenuated total reflection mode (ATR-FTIR) to investigate the porous membrane matrix influence on the polymer/water/solute interactions and the selective ultrafi...
متن کاملPotentiometric ion- and bio-selective electrodes based on asymmetric cellulose acetate membranes.
The potentiometric response properties of ammonium-, carbonate-, and proton-selective electrodes prepared by incorporating appropriate neutral carriers within novel asymmetric cellulose acetate membranes are reported. The membranes are formed by first casting a thin layer of cellulose triacetate without carrier, hydrolyzing one side of this film with base, and then on the other side casting a s...
متن کاملNanocomposite Membranes with Magnesium, Titanium, Iron and Silver Nanoparticles - A Review
Nanocomposite membrane comprising of both organic and inorganic material qualities have become a prime focus for the next generation membranes. Nanocomposite may consist of hard permeable or impermeable inorganic particles, such as zeolites, carbon molecular sieves and, silica and carbon nanotubes, metal oxide blended with continuous polymeric matrix presents an attract...
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تاریخ انتشار 2017