The effect of experimental parameters such as the type and composition
of zeolites on permeation flux and selectivity was investigated. selleck screening library When tested on IPA-water mixtures, the zeolite-filled membrane was found to give much higher selectivity. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 2717-2725, 2011″
“This study investigated the effects of advanced glycation end products (AGEs) on expressions of extracellular matrix metalloproteinase inducer (EMMPRIN) and matrix metalloproteinase-2 (MMP-2) in mouse osteoblasts. MC3T3-E1 cells were incubated with AGEs of different concentrations (50, 100, 200 and 400 mg/L) for various durations (12, 24 and 48 h). The expressions of EMMPRIN mRNA and protein as well as MMP-2 expression and activity were detected. Cells were treated with aminoguanidine (AG) of 0, 100, 200 and 400 mu mol/L) plus 200 mg/L AGEs for 24 h, then expressions of EMMPRIN mRNA and protein were measured. Cells were treated with
EMMPRIN antibody (5 mu g/ml), and MMP-2 activity was determined with zymography. After AGEs treatment, the expressions of EMMPRIN mRNA and protein as well as MMP-2 expression and activity were significantly increased in a time and concentration dependent PXD101 manner; AGEs plus AG of different concentrations could markedly decrease the expressions of EMMPRIN mRNA and protein when compared with controls in a concentration dependent manner; administration of EMMPRIN antibody dramatically suppressed the activity of MMP-2. AGEs could increase the expressions of EMMPRIN
and MMP-2 and elevate MMP-2 activity; AG could suppress the increased expression of EMMPRIN induced by AGEs; EMMPRIN antibody conferred suppressive effects on the expression of MMP-2 induced by AGEs. Therefore, AGEs may be involved in the pathogenesis of osteoporosis via increasing the expression of EMMPRIN and MMP-2 and promoting MMP-2 activity.”
“We have developed Metglas/Pb(Mg(1/3)Nb(2/3))O(3)-PbTiO(3) SN-38 mw magnetoelectric (ME) laminates that have notably larger ME coefficients, with maximum values of up to 45 V/cm Oe. Based on this giant ME effect, the dc magnetic field sensitivity for Metglas/PMN-PT laminate sensors was improved by a factor of > 3, relative to that for Metglas/Pb(Zr,Ti)O(3) (PZT)-based ones of the same geometry. Our new ME sensor can detect dc magnetic field changes as small as (i) 5 nT at 1 kHz and (ii) 1 nT near the resonant frequency in a shield chamber. (C) 2011 American Institute of Physics. [doi:10.1063/1.3569629]“
“Modified chondroitin sulfate (pi-CdS) microspheres were synthesized by way of crosslinking-copolymerization reaction with N-isopropylacrylamide (NIPAAm), yielding CdS-co-PNIPAAm copolymer network.