0167-9317/$ see front matter 2008 Elsevier B.V. A doi:10.1016/j.mee.2008.11.058 * Corresponding author. Address: Institute of Micro Terma Patriarxou Grigoriou Street, Agia Paraskevi 153 E-mail addresses: [email protected], vtsou The detection of the biotin–streptavidin interaction is presented based on surface stress changes of functionalized Si membranes. During the biomolecular interac...

PIM-1-based freestanding mixed matrix membranes (MMMs) and thin film nanocomposites (TFNs) were prepared by incorporating porous silica nanosheets (SN) exfoliated SN (E-SN) derived from natural vermiculite (Verm) in the PIM-1 polymer matrix. In addition, functionalized sulfonic acid amine groups (S-SN N-SN, respectively) also used as fillers for preparation of MMMs. The gas separation performan...

Oily wastewater, especially the emulsified one, causes serious environment pollution and poses threats to ecosystem resource recycling. Among various filtration media, porous polymeric membranes have gained tremendous attention in dealing with oily emulsions due their energy-saving, cost-effective, highly efficient features. However, alleviate membrane fouling by oil droplets ensure high separa...

Currently, production of porous polymeric membranes for filtration is predominated by the phase-separation process. However, this method has reached its technological limit, and there have been no significant breakthrough over the last decade. Here we show, using polyvinylidene fluoride as a sample polymer, a new concept of membrane manufacturing by combining oriented green solvent crystallizat...

Over the past two decades, membrane processes have gained a lot of attention for the separation of gases. They have been found to be very suitable for wide scale applications owing to their reasonable cost, good selectivity and easily engineered modules. This critical review primarily focuses on the various aspects of membrane processes related to the separation of biogas, more in specific CO(2...

Different classes of polymeric materials such as nanomaterials, sol-gel materials, conducting polymers, functional polymers and biomaterials have been used in the design of sensors and biosensors. Various methods have been used, for example from direct adsorption, covalent bonding, crossing-linking with glutaraldehyde on composites to mixing the enzymes or use of functionalized beads for the de...

Ž . The excited state dynamics of a water-soluble polymeric dye poly S-119 was investigated using femtosecond time-reŽ . solved fluorescence upconversion. Multi-exponential relaxation of fluorescence was observed for poly S-119 in picosecond and sub-picosecond time ranges. The azo-chromophore of the functionalized polymeric dye Sunset Yellow was used as a model compound for detailed investigati...

Polymeric flat-sheet membranes and hollow fibers were prepared via UV photo-initiated polymerization of acrylic acid at the surface commercial polyether sulfones (PES) membranes. These polymeric materials permitted to immobilize efficiently palladium nanoparticles (PdNP), which exhibited a mean diameter in range 4?6 nm. synthesized by chemical reduction Pd(II) precursors presence corresponding ...

This review covers new experimental and theoretical physical research related to the formation of polymeric membranes by phase separation of a polymer solution, and to the morphology of these membranes. Two main phase separation processes for polymeric membrane formation are discussed: thermally induced phase separation and immersion precipitation. Special attention is paid to phase transitions...