Results 31 to 40 of about 285,928 (326)

Preferential sorption versus preferential permeability in pervaporation [PDF]

, 1985
Transport of liquids by pervaporation takes place by a solution—diffusion mechanism. In order to investigate the “solution part” of this transport model, preferential sorption has been compared with preferential permeability.
Franken, T., Mulder, M.H.V., Smolders, C.A.   +2 more
core   +3 more sources

Diclofenac Salts, VIII. Effect of the Counterions on the Permeation through Porcine Membrane from Aqueous Saturated Solutions

Pharmaceutics, 2012
The following bases: monoethylamine (EtA), diethylamine (DEtA), triethylamine (TEtA), monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA), pyrrolidine (Py), piperidine (Pp), morpholine (M), piperazine (Pz) and their N-2-hydroxyethyl (HE ...
Cristina Cavallari, Annamaria Monastero, Glenda Bassini, Adamo Fini   +3 more
doaj   +1 more source

Design of a nanostructured mucoadhesive system containing curcumin for buccal application: from physicochemical to biological aspects

Beilstein Journal of Nanotechnology, 2019
Mucoadhesive nanostructured systems comprising poloxamer 407 and Carbopol 974P® have already demonstrated good mucoadhesion, as well as improved mechanical and rheological properties.
Sabrina Barbosa de Souza Ferreira, Gustavo Braga, Évelin Lemos Oliveira, Jéssica Bassi da Silva, Hélen Cássia Rosseto, Lidiane Vizioli de Castro Hoshino, Mauro Luciano Baesso, Wilker Caetano, Craig Murdoch, Helen Elizabeth Colley, Marcos Luciano Bruschi   +10 more
doaj   +1 more source

Characterization of ultrafiltration membranes by tracer's retention:Comparison of methods sensitivity and reproducibility [PDF]

, 2010
Previous studies have shown that the absolute membrane cut-off and the value quoted by the manufacturers may be very different because of differences in methodologies and testing conditions.
Causserand, Christel, Lorain, Olivier, Pierre, Gwenaelle, Rapenne, Sophie, Sauvade, Patrick, Schrotter, Jean-Christophe   +5 more
core   +2 more sources

Effectiveness of polymeric gloves in radioprotection against contamination in nuclear medicine

Brazilian Journal of Radiation Sciences, 2023
When handling unsealed radioactive sources, radiological protection attention must be taken to avoid unnecessary exposure and radioactive contaminations, and an important and necessary practice to prevent such contaminations is the use of gloves when ...
Leonardo Pessoa da Silva, Josiane Bueno Salazar, Andréia Caroline Fischer da Silveira Fischer, Fernanda Ramos de Oliveira, Fernanda Chiarello Stedile   +4 more
doaj   +1 more source

Intermittent permeation of cylindrical nanopores by water

, 2002
Molecular Dynamics simulations of water molecules in nanometre sized cylindrical channels connecting two reservoirs show that the permeation of water is very sensitive to the channel radius and to electric polarization of the embedding material.
B. Smit, B. K. Peterson, D. P. Tieleman, H. J. C. Berendsen, H. J. C. Berendsen, J. Israelachvili, Jean-Pierre Hansen, M. Wilson, O. Beckstein, Rosalind Allen, Simone Melchionna, W. L. Jorgensen   +11 more
core   +1 more source

UV-enhanced sacrificial layer stabilised graphene oxide hollow fibre membranes for nanofiltration [PDF]

, 2015
Graphene oxide (GO) membranes have demonstrated great potential in gas separation and liquid filtration. For upscale applications, GO membranes in a hollow fibre geometry are of particular interest due to the high-efficiency and easy-assembly features at
Aba, NFD, Chong, JY, Li, K, Mattevi, C, Wang, B   +4 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

CVD of solid oxides in porous substrates for ceramic membrane modification [PDF]

, 1992
The deposition of yttria-doped zirconia has been experimented systematically in various types of porous ceramic substrates by a modified chemical vapor deposition (CVD) process operating in an opposing reactant geometry using water vapor and ...
Burggraaf, A.J., Lin, Y.S.
core   +2 more sources

PARP inhibitors elicit distinct transcriptional programs in homologous recombination competent castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
PARP inhibitors are used to treat a small subset of prostate cancer patients. These studies reveal that PARP1 activity and expression are different between European American and African American prostate cancer tissue samples. Additionally, different PARP inhibitors cause unique and overlapping transcriptional changes, notably, p53 pathway upregulation.
Moriah L. Cunningham, Jasibel Vasquez‐Gonzalez, Samantha M. Barnada, Salome Tchotorlishvili, Latese Jones, Ryan Maguire, Genevieve Lewis, Kinza Rizwan, Jenny Deng, Salma Koachar, Drithi Patel, Hailey Shankle, Tessa Mulders, Namra Ajmal, Charalambos Solomides, Emad S. Alnemri, Teresa F. Alnemri, Ayesha A. Shafi, Leonard G. Gomella, Wm Kevin Kelly, Steven B. McMahon, Matthew J. Schiewer   +21 more
wiley   +1 more source