membrane surface chemistry characterization

... inorganic composition analysis 95 3.8 Membrane surface chemistry characterization 95 3.8.1 Membrane surface charge measurement 95 3.8.2 Membrane contact angle measurement 96 ... Fouling Layer 110 iv TABLE OF CONTENTS 4.1.3.3 Changes in membrane surface morphology 113 4.1.3.4 Changes in membrane surface chemistry 115 4.1.4 Fouling Potential with Increasing Recovery ... Chemistry, membrane fouling refers to the process that results in a decrease in performance of a membrane, caused by the deposition of suspended or dissolved solids on the external membrane surface, ...

Ngày tải lên: 12/09/2015, 11:05

... 60 iii 3.3.9 Structural Characterization 61 3.3.10 Membrane Characterization 62 CHAPTER FOUR RESULTS AND DISCUSSIONS 67 4.1 MEMBRANE CHARACTERIZATION 67 ... Scanning electron micrographs of DL membrane surface (A) New DL membrane, (B) DL membrane after filtration of HpoA-containing solution for 24 h at pH and (C) DL membrane after filtration of HpoA-containing ... background solution by NF/RO membranes as a function of time 75 Figure 4.4 Transport of estrone across NF/RO membranes 78 Figure 4.5 Speciation of estrone 80 Figure 4.6 DL membrane surface zeta potential...

Ngày tải lên: 14/09/2015, 14:26

Ngày tải lên: 11/12/2013, 23:51

Ngày tải lên: 17/12/2013, 20:37

... plasma membrane, an analysis of the interactions between the peptide and the membrane environment is crucial to understanding the exit pathway of the peptide and the manner in which it disrupts membranes ... membrane, as determined by experiments performed in vitro: one with Val24 at the membrane water interface, the other with Lys28 at the interface [4,5] The location of the peptide within the membrane ... interactions between Ab and a model membrane can lead to a more complete understanding of the membrane- aided assembly of Ab and the resulting damage to cell membranes FEBS Journal 276 (2009) 3060–3075...

Ngày tải lên: 18/02/2014, 08:20

... they took the entrance exam to this university, they had to take the test in math, physics and chemistry; therefore, they only paid attention to these subjects to pass the exam English was considered ... students belong to different faculties such as: economics, mechanical engineering, automobile, chemistry, electronic and computer science Their motivation for learning English is not the same ... university As they enter the university, they have to take the entrance exam in math, physics and chemistry They not learn English as a main subject They just study it with reluctance to pass the...

Ngày tải lên: 28/03/2015, 09:01

... „you are‟ is understood as in „Fire when you are ready.‟) However, sometimes, ellipsis results in surface ungrammaticality  Examples: - „We go out for a coffee‟ and „they get invited to a wine ... prose to depict the natural speech of a character within the framework of such device as speech -characterization They can show vocation, education, breeding, environment and even the psychology ... exclamations and obscene words They are emotionally strongly charged and can be used for speech -characterization. ) In terms of semantics, colloquial English vocabulary mostly carries figurative...

Ngày tải lên: 28/03/2015, 09:36

Ngày tải lên: 10/04/2015, 18:08

... closure is released slowly, the air escaping in a diffuse manner over the whole of the central surface of the tongue with friction occurring between the blade/front region of the tongue and the...

Ngày tải lên: 10/04/2015, 18:08

Ngày tải lên: 13/04/2015, 16:43

Ngày tải lên: 10/08/2015, 19:47

Ngày tải lên: 25/12/2015, 17:24

... lysates were also reflected by the levels of DR5 surface expression, we performed a flow cytometric analysis, which indeed confirmed enhanced DR5 surface expression after treatment of the cells ... analogy to the western blot data, DR5 surface expression was not completely abolished in DR5 siRNA-transfected cells treated with MG132, but was reduced to basal surface expression levels of scrambled ... N-terminal kinase (JKN) ⁄ c-Jun stress signaling pathway and requires enhanced JNK ⁄ c-Jun-dependent surface expression of DR5 1926 Results Synergistic effects of combined treatment with TRAIL and...

Ngày tải lên: 18/02/2014, 17:20

... results in the recruitment of procaspase-8 to the death-inducing signalling complex at the cell membrane, a process mediated by the Fas-associated death domain (FADD) protein [23] Procaspase-8 ... were subjected to electrophoresis on SDS polyacrylamide gels and the proteins transferred to PVDF membranes using a semidry blotting apparatus (Bio-Rad, Hemel Hempstead, UK) Blots were blocked, ... Uchida A & Kawanishi S (1999) TRAIL causes cleavage of bid by caspase-8 and loss of mitochondrial membrane potential resulting in apoptosis in BJAB cells Biochem Biophys Res Commun 265, 130–133...

Ngày tải lên: 19/02/2014, 06:20

... Proteins were electrotransferred to ImmunoBlotTM poly(vinylidene difluoride) membranes (Bio-Rad) using 400 mA overnight at °C Membranes were washed in Tris-buffered saline (TBS: 20 mM Tris/HCl, pH ... Na3VO4 After washing, membranes were incubated for h at room temperature with horseradish peroxidase-conjugated goat anti-(mouse IgG) Ig (Bio-Rad) in blocking buffer (1 : 3000) Membranes were washed ... from the growth factor receptor complex Thus, as the local Sos concentration at the inner surface of the membrane decreases, Ras activation is impaired as well as subsequent activation of downstream...

Ngày tải lên: 19/02/2014, 16:20

... even by a PPAR-unrelated event, e.g through stimulation of the SV40 promoter and ⁄ or via the PGI2 membrane receptor IP Unless supplemented by appropriate controls, these data therefore not unequivocally ... molecules in transcription complexes in the nucleus While a very short interaction with the PGI2 membrane receptor (IP) may be sufficient for triggering a signal, a much greater stability may be ... CA, USA) Hybridization to P32-labeled probes was performed as described [25] Signal intensites on membranes were quantitated by PhosphorImager (Fuji, Dussel¨ dorf, Germany) Reverse transcriptase...

Ngày tải lên: 07/03/2014, 12:20

... K562 cellular membrane but also enters the cells DISCUSSION Fig Saturation curve of binding of FITC-Fe2-Tf (filled square) and FITC-Yb-Tf (filled red circle) to the K562 cellular membrane (A), ... high-field region (+0.5 to )1.0 p.p.m., Fig 5A) was attributed to the methyl groups close to the surface of the aromatic rings of Phe, Trp and Tyr residues due to the ring current effects [29] ... apo-Tf were severely broadened when Yb3+ was added (data not shown) Binding of Yb2-Tf on K562 cell membrane Fig 1H NMR Spectra of apo-Tf and its Lu3+ complexes (A) In the high-field region ()1.0 to...

Ngày tải lên: 08/03/2014, 09:20

... diphtheria toxin gene promoter J Bacteriol 175, 3295–3302 ´ Flores FJ, Rincon J & Martı´ n JF (2003) Characterization of the iron-regulated desA promoter of Streptomyces pilosus as a system for controlled ... A (2005) Rational design of a Corynebacterium glutamicum pantothenate production strain and its characterization by metabolic flux analysis and genome-wide transcriptional profiling Appl Environ...

Ngày tải lên: 16/03/2014, 11:20

... AdR-like enzymes, have been recently changed to nonionizable ones by site-directed mutagenesis [5] Characterization of the resulting FprA variants allowed us to conclude that His57 but not Glu214 ... be the imidazyl of His57 [4] Results and Discussion NADPO isolation, quantitation, and spectral characterization In order to study the kinetics of NADP+ oxidation to NADPO catalyzed by FprA, an ... was of interest to ascertain the identity of the isolated compound by a detailed spectroscopic characterization Values of 17 100 and 15 600 m)1Æcm)1 were found for the extinction coefficient of...

Ngày tải lên: 16/03/2014, 11:20