Search Results - "Fossum, J. O"

Intercalation and Retention of Carbon Dioxide in a Smectite Clay promoted by Interlayer Cations by Michels, L., Fossum, J. O., Rozynek, Z., Hemmen, H., Rustenberg, K., Sobas, P. A., Kalantzopoulos, G. N., Knudsen, K. D., Janek, M., Plivelic, T. S., da Silva, G. J.

“…A good material for CO 2 capture should possess some specific properties: (i) a large effective surface area with good adsorption capacity, (ii) selectivity…”
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Ciprofloxacin intercalated in fluorohectorite clay: identical pure drug activity and toxicity with higher adsorption and controlled release rate by dos Santos, E. C, Rozynek, Z, Hansen, E. L, Hartmann-Petersen, R, Klitgaard, R. N, Lbner-Olesen, A, Michels, L, Mikkelsen, A, Plivelic, T. S, Bordallo, H. N, Fossum, J. O

“…Different natural clay minerals, including halloysite, montmorillonite and kaolinite, have been proven to be efficient drug carriers providing for high and…”
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Structuring from nanoparticles in oil-based ferrofluids by Rozynek, Z., Józefczak, A., Knudsen, K. D., Skumiel, A., Hornowski, T., Fossum, J. O., Timko, M., Kopčanský, P., Koneracká, M.

“… The effect of magnetic field on the structure formation in an oil-based magnetic fluid with various concentrations of magnetite particles was studied. The…”
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Electrorheological Suspensions of Laponite in Oil:  Rheometry Studies by Parmar, K. P. S, Méheust, Y, Schjelderupsen, Børge, Fossum, J. O

“…We have studied the effect of an external direct current (DC) electric field (∼1 kV/mm) on the rheological properties of colloidal suspensions consisting of…”
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Dipolar structuring of organically modified fluorohectorite clay particles by Rozynek, Z., Wang, B., Fossum, J. O., Knudsen, K. D.

“…This report focuses on both the characterization of organically modified fluorohectorite (Fh) clay particles and their electric-field-induced alignment when…”
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Anisotropic Water Diffusion in Nematic Self-Assemblies of Clay Nanoplatelets Suspended in Water by de Azevedo, E. N, Engelsberg, M, Fossum, J. O, de Souza, R. E

“…Diffusion-weighted magnetic resonance imaging provides a vivid description of the little understood role played by interfacial interactions with macroscopic…”
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Phase diagram of polydisperse Na-fluorohectorite-water suspensions: a synchrotron small-angle x-ray scattering study by Fonseca, D M, Méheust, Y, Fossum, J O, Knudsen, K D, Parmar, K P S

“…Systems of platelet-shaped nanostacks of the synthetic clay Na-fluorohectorite, suspended in saline solutions of various salt concentrations, exhibit a rich…”
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Intercalation-enhanced electric polarization and chain formation of nano-layered particles by Fossum, J. O, Méheust, Y, Parmar, K. P. S, Knudsen, K. D, Måløy, K. J, Fonseca, D. M

“…Microscopy observations show that suspensions of synthetic and natural nano-layered smectite clay particles submitted to a strong external electric field…”
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New advances in the 3D characterization of mineral coating layers on paper by CHINGA-CARRASCO, G, KAUKO, H, MYLLYS, M, TIMONEN, J, WANG, B, ZHOU, M, FOSSUM, J.O

“…The surface characteristics of a large set of commercial lightweight coated paper grades are explored. The quantification of the 3D structure is revealed by…”
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Observations of orientational ordering in aqueous suspensions of a nano-layered silicate by Fossum, J.O., Gudding, E., Fonseca, D.d.M., Meheust, Y., DiMasi, E., Gog, T., Venkataraman, C.

“…We have studied colloidal suspensions of clay particles in aqueous salt solutions. These suspensions make excellent model systems for the study of interactions…”
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Small-angle X-ray and small-angle neutron scattering investigations of colloidal dispersions of magnetic nanoparticles and clay nanoplatelets by Paula, F. L. O., Aquino, R., Da Silva, G. J., Depeyrot, J., Tourinho, F. A., Fossum, J. O., Knudsen, K. D.

“…We investigated mixed colloidal dispersions of clay platelets and magnetic nanoparticles using small‐angle X‐ray and neutron scattering. Our results show that…”
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The Impact of Thermal History on Water Adsorption in a Synthetic Nanolayered Silicate with Intercalated Li+ or Na+ by Michels, L, da Fonseca, C. L. S, Méheust, Y, Altoé, M. A. S, dos Santos, E. C, Grassi, G, Droppa, R, Knudsen, K. D, Cavalcanti, L. P, Hunvik, K. W. B, Fossum, J. O, da Silva, G. J, Bordallo, H. N

“…For applications benefitting from the swelling properties of nanolayered silicates (clay minerals), it is of paramount importance to understand the hysteresis…”
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Small-angle neutron scattering from a nano-layered synthetic silicate by Knudsen, K.D., Fossum, J.O., Helgesen, G., Haakestad, M.W.

“…The combined analysis of the power-law behavior of small-angle scattering and of the relative scattered intensity for different scattering vectors makes it…”
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Swelling transition of a clay induced by heating by Hansen, E. L., Hemmen, H., Fonseca, D. M., Coutant, C., Knudsen, K. D., Plivelic, T. S., Bonn, D., Fossum, J. O.

“…Clays are of paramount importance for soil stability, but also in applications ranging from oil recovery to composites and hydrogels. Generically, clays are…”
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Dynamics of water intercalation fronts in a nano-layered synthetic silicate: A synchrotron X-ray scattering study by Løvoll, G., Sandnes, B., Méheust, Y., Måløy, K.J., Fossum, J.O., da Silva, G.J., Mundim, M.S.P., Droppa Jr, R., Fonseca, D.M.

“…We performed synchrotron X-ray scattering studies of the dynamics of the water intercalation front in a Na–Fluorohectorite clay. Like other smectite clays,…”
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Transition from glass- to gel-like states in clay at a liquid interface by Gholamipour-Shirazi, A., Carvalho, M. S., Huila, M. F. G., Araki, K., Dommersnes, P., Fossum, J. O.

“…Colloidal clay in water suspensions are known to exhibit a multitude of bulk phases depending on initial colloidal concentration and ionic strength, and…”
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X-ray studies of interlayer water absorption and mesoporous water transport in a weakly hydrated clay by Hemmen, H, Alme, L R, Fossum, J O, Meheust, Y

“…The swelling of layered smectite clay particles consists of a change in the interlayer repetition distance ( d -spacing) as a function of temperature and…”
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Smectite as ciprofloxacin delivery system: Intercalation and temperature-controlled release properties by Rivera, A., Valdés, L., Jiménez, J., Pérez, I., Lam, A., Altshuler, E., de Ménorval, L.C., Fossum, J.O., Hansen, E.L., Rozynek, Z.

“…Clays have shown to be good candidates as drug delivery carriers. In the present paper, the temperature-dependent swelling of smectites was exploited to obtain…”
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Orientational order in gravity dispersed clay colloids: a synchrotron x-ray scattering study of Na fluorohectorite suspensions by DiMasi, E, Fossum, J O, Gog, T, Venkataraman, C

“…Colloidal suspensions of clay particles in aqueous salt solutions make ideal model systems for the study of interactions between plate-shaped particles, due to…”
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Rheological Study of Dextran-Modified Magnetite Nanoparticle Water Suspension by Józefczak, A., Hornowski, T., Rozynek, Z., Skumiel, A., Fossum, J. O.

“…The aim of this work is to investigate the effect of surface modification of superparamagnetic magnetite nanoparticles (sterically stabilized by sodium oleate)…”
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