Functionalised titanate nanotubes (TiNTs) were incorporated to poly(5,5-bisbenzimidazole-2,2-diyl-1,3-phenylene) (PBI) or poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) for improving the interfacial compatibility between the polymer matrix and inorganic material and for altering the gas separation performance of the neat polymer membranes. Functionalisation consisted in oxidative polymerisation o...

Gas separation by selective transport through polymeric membranes is one of the fastest growing branches of membrane technology. However, the existing polymeric membrane materials are inadequate to fully exploit the application opportunities on industrial scale; the improvement in permeability is at the expense of selectivity, and vice versa. A new type of membrane material emerging with the po...

Because of the high separation performance and easy preparation, mixed-matrix membranes (MMMs) consisting of metal-organic frameworks have received much attention. In this article, we report a novel ZIF-300/PEBA MMM consisting of zeolite imidazolate framework (ZIF-300) crystals and polyether block amide (PEBA) matrix. The ZIF-300 crystal size was effectively reduced by optimizing the hydrotherm...

Although multivariate analytic techniques might identify diagnostic patterns that are not captured by univariate methods, they have rarely been used to study the neural correlates of Alzheimer's disease (AD) or cognitive impairment. Nonquantitative H2(15)O PET scans were acquired during rest in 17 probable AD subjects selected for mild severity [mean-modified Mini Mental Status Examination (mMM...

this is a comprehensive review of the recent progresses made in the field of zeolite membranes. it describes zeolitic materials and methods of membrane fabrication, followed by a summary of applications for gas separation, pervaporation and separation of liquid mixtures. special attention is called to polymer mixed matrix membranes (mmms) and membranes based on metal organic frame works (mofs)....

Mixed matrix membranes (MMMs) have been obtained by blending an aromatic ortho-hydroxypolyimide (PIOH) or ortho-acetylpolyimide (PIOAc) with different loading amounts (15 and 30 wt %) of a microporous polymer network (PPN), which was from the reaction triptycene isatin. The excellent thermal resistance PPN (above 500 °C) allowed it to be used as filler successfully prepare thermally rearranged ...

OBJECTIVE To determine if baseline measurements of cerebral atrophy and severity of white matter hyperintensity (WMH) predict the rate of future cognitive decline in patients with Alzheimer disease (AD). DESIGN Data were drawn from the Predictors Study, a longitudinal study that enrolls patients with mild AD and reassesses them every 6 months with use of the Columbia modified Mini-Mental Stat...

BACKGROUND Middle meatal spacers are commonly used following endoscopic sinus surgery to prevent post-operative bleeding and lateralization of the middle turbinates. The effects of nasal packing on post-operative sinonasal mucosal healing remain unknown in humans. OBJECTIVE This study aims to compare the histopathalogical effects of Merocel and Merocel covered with a finger glove on mucosal h...

Abstract Mixed matrix membranes (MMMs) have been widely developed as an attractive solution to overcome the drawbacks found in most polymer membranes, such permeability-selectivity trade-off and low physicochemical stability. Numerous fillers based on inorganic, organic, hybrid materials with various structures including porous or nonporous, two-dimensional three-dimensional, used. Demanded fur...

Abstract In this work, a new model is developed by modifying the existing Maxwell–Wagner–Sillars (MWS) to predict gas separation properties of mixed matrix membranes (MMMs). The modified MWS model, for first time, provides simultaneous exploration role nanofillers/matrix interface voids and exact geometrical shape nanofillers in predicting MMMs. To unveil crucial voids, membrane considered thre...