Mobility studies, electrophoretic

Sene JJ, Zeltner WA, Anderson MA (2003) Fundamental photoelectrocatalytic and electrophoretic mobility studies of Xi02 and V-doped Xi02 thin film doped materials. J Phys Chem 6107 1597-1603... 

Although not at capillary level nor a physical separation, Johnson and He first introduced the combination of electrophoresis and NMR (E-NMR) to study electrophoretic mobilities and diffusion coefficients [27], Sweedier and coworkers described the first application of microcoil NMR probe as an on-line detector for CE [13,28], In 1998 Bayer, Albert, and co-workers reported the first CEC/NMR experiments which also included CE/NMR and capillary LC/ NMR results [29],... 

Takayanagi, T., Wada, E., and Motomizu, S. Electrophoretic mobility study of ion association between aromatic anions and quaternary ammonium ions in aqueous solution. Analyst 1997, 122, 57-62. 

Kim, et al., ( ) have utilized radioiodinated (I proteins to measure adsorption of individual proteins and protein mixtures on LTI carbon surfaces. Their results indicate a very rapid adsorption of albumin onto the LTI carbon surface, consistent with Kim s model of blood interactions via a platelet-adhesion mechanism (.8). Microcalorimetric and electrophoretic mobility studies of protein adsorption on LTI carbon surfaces have been done by Chiu, et al., ( 5). The extension of the adsorbed protein layers have been directly measured by Fenstermaker, et al., ( ) and Stromberg et al., 7) at NBS using ellipsometric methods. 

These forces have been measured. A further consequence of the new theories is that inferences of surface charge, "ion-binding" to surfaces as adduced from force measurements and/or electrophoretic mobility studies or NMR which involve the crude Poisson-Boltzmann theory are wrong. If the simple analytic Poisson-Boltzmann theory is used to interpret direct force measurements, experimental results can be forced into that analytic form, but the real binding constants are quite different. 

Sene, J.J., Zeltner, W.A., and Anderson, M.A., Fundamental photoelectrocatalytic and electrophoretic mobility studies of TiO2 and V-doped TiO lliin-film electrode materials, J. Phys. Chem. B, 107, 1597, 2003. 

Concentration/separation of sample solutes is one of most important functions in micro- and nanofluidic systems. TGF has proved to be a promising technique that can achieve concentration and separation in microfiuidic devices. However, so far very limited experimental and theoretical investigations have been reported. Experimentally, it is highly desirable to develop various microfiuidic structures that can be utilized by the TGF technique to cmicentrate different samples. Furthermore, more experiments should be carried out to characterize the thermoelectrical properties of buffers and samples so as to obtain the temperature-dependent electroosmotic mobility and electrophoretic mobility, as well as buffer conductivity, viscosity, and dielectric permittivity for each individual sample and buffer solution. In addition, the development of reliable, accurate, high-resolution, experimental techniques for measuring fiow, temperature, and sample solute concentration fields in microfiuidic channels is needed. Theoretically, the model development of TGF is still in its infancy. The models presented in this study assume the dilute solute sample and linear mass flux-driving forces correlations. However, when the concentrations of the sample solute and the buffer solution are comparable, the aforementioned assumptions break down. Moreover, the channel wall zeta potential in this situation may become nonconstant. More comprehensive models should be developed to incorporate the solute-buffer and solute-channel wall... 

Properties of Epstein-Barr Viral Proteins Immobilized on Aquasomes. Doppler electrophoretic mobility studies were conducted between the pH range of 4.5 to 9.0. Both die native EBV and aquasome decoy, constructed from surface modified ceramics and EBV proteins, retained virtually identical mobilities of approximately -... 

For further discussion of experimental methods for determination of electrophoretic titration curves of proteins, see the recent study by Gianazza et al. [129], For discussion of the free solution mobility of DNA see Stellwagen et al. [368],... 

Coveney, FM Strange, JH Smith, AL Smith, EG, NMR Studies of Electrophoretic Mobility in Surfactant Systems, Colloids and Surfaces 36, 193, 1989. 

Hervet, H Bean, CP, Electrophoretic Mobility of Lambda Phage HIND III and HAE III DNA Eragments in Agarose Gels A Detailed Study, Biopolymers 26, 727, 1987. 

The techniques mentioned here provide a basic approach to the study of hemoglobinopathies since the Identification of many variants Is dependent upon their net charge. However, certain changes In the tertiary structure of a hemoglobin variant may also alter Its electrophoretic behavior. This Is well documented for many unstable variants such as for Hb-K51n which migrates more slowly than Hb-A but In which the neutral valyl residue In position 398 Is replaced by the neutral methlonyl residue. It should also be mentioned that differences In the level of heme oxidation will cause differences In the electrophoretic mobility. 

Structural Analyses of Hemoglobin Variants It has become Impossible to characterize nearly any abnormal hemoglobin by Its electrophoretic and/or chromatographic mobility only This Is most strikingly demonstrated by the fact that over fifty different variants behave similar to Hb-S In electrophoresis Characterization, therefore, often requires detailed structural analyses or the demonstration of a property unique to a specific variant Some of the techniques used In these studies will be... 

The properties of the filter-cake formed by macroscopic particles can be significantly influenced by certain organic additives. The overall mechanism of water-soluble fluid loss additives has been studied by determining the electrophoretic mobility of filter-cake fines. Water-soluble fluid loss additives are... 

Electrophoretic and kinetic studies of the patient s enzyme have been reported in several cases (F10). Most of them showed decreased substrate affinity and abnormal electrophoretic mobility. The main cause of P5N deficiency is considered to be an abnormality of P5N-I, probably arising from a structural gene mutation (H6). The precise molecular defect has not been clarified, because the normal gene for P5N-I has not been isolated. 

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