Characterization of an Amphoteric-Charged Layer Grafted to the Pore Surface of a Porous Membrane

Langmuir ◽  
1998 ◽  
Vol 14 (25) ◽  
pp. 7112-7118 ◽  
Author(s):  
Toshihiko Jimbo ◽  
Akihiko Tanioka ◽  
Norihiko Minoura
Keyword(s):  
Porous Membrane ◽  
Pore Surface ◽  
Charged Layer

Fabrication and characterization of metal porous membrane made of Ni powder for hydrogen separation

2006 ◽  
Vol 47 (3) ◽  
pp. 148-155 ◽  
Author(s):  
Shin-Kun Ryi ◽  
Jong-Soo Park ◽  
Sung-Hoon Choi ◽  
Sung-Ho Cho ◽  
Sung-Hyun Kim
Keyword(s):  
Porous Membrane ◽  
Hydrogen Separation ◽  
Ni Powder ◽  
Fabrication And Characterization

Fabrication and Characterization of Highly Ordered Porous Alumina Templates by a Two-Step Anodization Process

2013 ◽  
Vol 755 ◽  
pp. 75-81
Author(s):  
C.A. León-Patiño ◽  
E.A. Aguilar-Reyes ◽  
C. Ruiz-Aguilar
Keyword(s):  
Porous Alumina ◽  
Porous Membrane ◽  
Interpore Distance ◽  
Alumina Membranes ◽  
Single Side ◽  
Anodic Porous Alumina ◽  
20 Nm ◽  
Ordered Porous ◽  
Through Hole

Highly ordered through-hole anodic porous alumina membranes were fabricated by electrochemical oxidation of aluminum in a controlled two-step process. A teflon dispositive was used to ensure single side anodization. Under the most appropriate condition for the fabrication of ideally ordered anodic aluminum oxide (AAO), the voltage used was 15 V during 24 h in a 15 % w/v sulfuric acid solution. SEM, TEM and FESEM characterization shows that the as-fabricated AAO film has a defect-free array of straight parallel channels perpendicular to the surface. The thickness of the porous membrane is 20 microns, approximately. The ordered channels are formed in a honey comb arrange with a pore diameter in the range 20-30 nm, wall thickness of 10-20 nm, interpore distance of 40 nm, and high aspect ratio of 850. The pore density, quantified by image analysis, is 5.4×1010 pore/cm2; perfect ordering was maintained in the full depth of the membrane. Dimensions of this porous structure provide a convenient way to precision engineer the nanoscale morphology.

Enhanced Oxygen Diffusion through a Porous Membrane Chemically Modified with Cobalt Porphyrin on Its Pore Surface

1994 ◽  
Vol 116 (10) ◽  
pp. 4503-4504 ◽  
Author(s):  
Hiroyuki Nishide ◽  
Takayuki Suzuki ◽  
Ryuji Nakagawa ◽  
Eishun Tsuchida
Keyword(s):  
Oxygen Diffusion ◽  
Porous Membrane ◽  
Pore Surface ◽  
Cobalt Porphyrin ◽  
Chemically Modified

The Characterization of Porous Structure of Frozen Wool Keratin Membrane

2012 ◽  
Vol 531 ◽  
pp. 83-87 ◽  
Author(s):  
Xi Chen ◽  
Wei Dong Yu
Keyword(s):  
Porous Structure ◽  
Morphological Structure ◽  
Porous Membrane ◽  
Experimental Results ◽  
Liquid Concentration ◽  
Membrane Density ◽  
Wool Keratin

Use the keratin liquid which solved from wool with urea and 2-mercaptoethanol to prepare wool keratin porous membrane at different concentration and frozen temperature. Observe the morphological structure of the membrane by SEM and analyze the SEM pictures. The experimental results indicate that the liquid concentration and frozen temperature are inversely proportional to the porous membrane aperture and porosity, but proportional to the porous membrane density.

Preparation and Characterization of Porous Membrane for Drug Release

2007 ◽  
Vol 342-343 ◽  
pp. 485-488
Author(s):  
Soo Young Lee ◽  
Young Ho Cho ◽  
Ju Yong Youn ◽  
Moon Suk Kim ◽  
Bong Lee ◽  
...  
Keyword(s):  
Pore Formation ◽  
Water Solubility ◽  
Porous Membrane ◽  
Solvent Casting ◽  
Casting Method ◽  
Semipermeable Membranes ◽  
Permeable Membrane ◽  
Sem Image ◽  
Water Dissolution

To develop osmotic granule with semi-permeable membranes, we prepared the semipermeable membranes with different pore forming agent by using solvent casting method. The membrane was consisted of cellulose acetate, Eudragit® RS, hydroxypropylcellulose (HPC), and triethylcitrate (TEC) in the presence of PEG200, PEG1, 000, or dibutylsebacate(DBS) as a pore forming agent. The produced membranes were white and elastic and exhibited soft property on touch. The release amount of pore forming agent from membrane with different pore forming agent was measured in water dissolution media and the order was PEG200 > PEG1, 000 > DBS. The formation of pore in membrane was observed by morphological SEM image after dissolution. The pore formation and porosity of membrane depended on water solubility of pore forming agent. We confirmed that pores in porous semi-permeable membrane could be controlled by the pore forming agent.

scholarly journals Carboxybetaine–Group Immobilized onto Pore Surface Reduced Protein Adsorption to Porous Membrane

MEMBRANE ◽  
2010 ◽  
Vol 35 (2) ◽  
pp. 86-92 ◽  
Author(s):  
Shinya Matsuno ◽  
Akio Iwanade ◽  
Daisuke Umeno ◽  
Kyoichi Saito ◽  
Hajime Ito ◽  
...  
Keyword(s):  
Protein Adsorption ◽  
Porous Membrane ◽  
Pore Surface
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