Results 41 to 50 of about 66,269 (304)

Properties of casting solutions and ultrafiltration membranes based on fullerene-polyamide nanocomposites

eXPRESS Polymer Letters, 2012
Poly(phenylene isophtalamide) (PA) was modified by fullerene C60 using solid-phase method. Novel ultrafiltration membranes based on nanocomposites containing up to 10 wt% of fullerene and carbon black were prepared.
N. N. Sudareva, A. V. Penkova, T. A. Kostereva, G. A. Polotskaya, A. E. Polotskii   +4 more
doaj   +1 more source

Improved water purification by PVDF ultrafiltration membrane modified with GO-PVA-NaAlg hydrogel

Scientific Reports, 2023
This work presents a modified polyvinylidene fluoride (PVDF) ultrafiltration membrane blended with graphene oxide-polyvinyl alcohol-sodium alginate (GO-PVA-NaAlg) hydrogel (HG) and polyvinylpyrrolidone (PVP) prepared by the immersion precipitation ...
Armin Ghobadi Moghadam, Alireza Hemmati
doaj   +1 more source

Effect of membrane character and solution chemistry on microfiltration performance [PDF]

, 2008
To help understand and predict the role of natural organic matter (NOM) in the fouling of low-pressure membranes, experiments were carried out with an apparatus that incorporates automatic backwashing and long filtration runs.
Allpike, Amy, Avena, B. Allpike, B.A. Bolto, Bolto, Braghetta, C.B. Ritchie, Carroll, Chang, Cho, Costa, Croué, F. Busetti, Farahbakhsh, Gray, Howe, Jucker, Kim, Kimura, Laîné, Laîné, Lee, Lee, Leenheer, Lin, P. Greenwood, Piccolo, S.R. Gray, Schäfer, T. Tran, Taniguchi, Tran, Zularisam   +33 more
core   +1 more source

Alleviating Heat Loss Associated with Modified Ultrafiltration

The Journal of ExtraCorporeal Technology, 2002
Modified ultrafiltration (MUF) has been described and utilized for the removal of extracellular water in the immediate postcardiopulmonary bypass (CPB) period. This technique has been associated with improved hematological status and hemodynamic stability post cardiopulmonary bypass.
Joseph, Deptula, J William, Gaynor, James, Groneck, Tami, Owens, Kellie, Rogers, Dee Ann, Griffin, Thomas, Spray   +6 more
openaire   +2 more sources

Glutamine Phosphoribosylpyrophosphate Amidotransferase-independent Phosphoribosyl Amine Synthesis from Ribose 5-Phosphate and Glutamine or Asparagine [PDF]

, 2007
Phosphoribosylamine (PRA) is the first intermediate in the common pathway to purines and thiamine and is generated in bacteria by glutamine phosphoribosylpyrophosphate (PRPP) amidotransferase (EC 2.4.2.14) from PRPP and glutamine.
Downs, Diana M., Koenigsknecht, Mark J., Ramos, Itzel   +2 more
core   +2 more sources

Development of polymeric hollow fiber membranes containing catalytic metal nanoparticules. [PDF]

, 2010
Metal nanoparticles (MNPs) have unique physico-chemical properties advantageous for catalytic applications which differ from bulk material. However, the main drawback of MNPs is their insufficient stability due to a high trend for aggregation.
Bruening, Merlin L., Lahitte, Jean-Francois, Macanás, Jorge, Muñoz, Maria, Ouyang, Lu, Remigy, Jean-Christophe   +5 more
core   +4 more sources

Commercially Supplied Amine-Modified siRNAs May Require Ultrafiltration prior to Conjugation with Amine-Reactive Compounds

Journal of Nucleic Acids, 2011
Conjugation of siRNA to macromolecules such as serum albumin has multiple potential benefits, including enhanced extravasation via albumin-mediated transcytosis across endothelial cells and reduced renal clearance.
Shannen Lau, Bim Graham, Ben J. Boyd, Colin W. Pouton, Paul J. White   +4 more
doaj   +1 more source

Modification of Polysulfone Ultrafiltration Membranes via Addition of Anionic Polyelectrolyte Based on Acrylamide and Sodium Acrylate to the Coagulation Bath to Improve Antifouling Performance in Water Treatment

Membranes, 2020
Surface modification of polysulfone ultrafiltration membranes was performed via addition of an anionic polymer flocculant based on acrylamide and sodium acrylate (PASA) to the coagulation bath upon membrane preparation by non-solvent induced phase ...
Tatiana V. Plisko, Alexandr V. Bildyukevich, Katsiaryna S. Burts, Tatiana A. Hliavitskaya, Anastasia V. Penkova, Sergey S. Ermakov, Mathias Ulbricht   +6 more
doaj   +1 more source

Preparation, characterization, and photocatalytic performance of polyvinylidene fluoride membrane modified with TiO2-C hybrid aerogels [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2016
TiO2-C hybrid aerogels containing submicrometer anatase and carbon nanoparticles were prepared with TiCl4 and resorcinol-furfural. A modified polyvinylidene fluoride (PVDF) ultrafiltration membrane was prepared through phase inversion after ...
Li Jun, Liu Jing, Bi Dongsu, Guo Xiaopin, Wang Peng   +4 more
doaj   +1 more source

Ultraflitration of wastewater with pretreatment: evaluation of flux decline models [PDF]

, 2008
Three different mathematical models relating the flux decline were investigated to quantify the effects of pretreatment in a membrane filtration system.
Kandasamy, J, Shim, WG, Shon, HK, Vigneswaran, S   +3 more
core   +1 more source