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Volume 1 (1976)
- Issue 4 Pages 250-
- Issue 3 Pages 166-
- Issue 2 Pages 82-
- Issue 1 Pages 1-
Volume 1, Issue 4
Displaying 1-9 of 9 articles from this issue
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Kiyohide KOJIMA, Chikako SATO1976 Volume 1 Issue 4 Pages 250-261
Published: November 25, 1976
Released on J-STAGE: October 21, 2010
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Takeshi Matsuura1976 Volume 1 Issue 4 Pages 262
Published: November 25, 1976
Released on J-STAGE: October 21, 2010
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Masataka OKUYAMA, Tadayoshi YOSHIDA1976 Volume 1 Issue 4 Pages 263-272
Published: November 25, 1976
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSThe formation techniques of several bimolecular films (bilayers) and the selection methods of their materials were described concretely and discussed. (1) Tough and voltage-stable bilayer (breakdown voltage: 1.5×107 V/cm) was formed by means of photopolymerization of octadecyl acrylate bilayer. Such a super-thin film will be useful both technically and industrially, if the formation technique is improved. (2) The largest bilayer, we have ever known, could be obtained with the complex formation of cis-9-octadecenylamine (oleyl amine) and NiCl2 in aqueous phase. (3) In order to be comparable to biological membrane in electric resistance, 1-tetradecanol (myristyl alcohol) -linalool mixed bilayer was skeletonized by means of KMnO4 oxidation.View full abstractDownload PDF (2271K) -
[in Japanese]1976 Volume 1 Issue 4 Pages 273-278
Published: November 25, 1976
Released on J-STAGE: October 21, 2010
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Shoji Kimura1976 Volume 1 Issue 4 Pages 279-287
Published: November 25, 1976
Released on J-STAGE: October 21, 2010
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J. Sato, T. Fukuda, K. Suzuki, I. Hara1976 Volume 1 Issue 4 Pages 289-292
Published: November 25, 1976
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSThe lipid arrangements on the lipid layer (as biomembrane model) of molecular surface of human serum low density and high density lipoproteins (LDL and HDL) were examined using the immunological techniques. Antiserum against etiocholenic acid which mainly reacted with the ring A of cholesterol, anti-cholesterol suc-cinate antiserum which mainly reacted with the side chain of cholesterol and antiserum against phosphatidic acid which reacted to the polar portion of phospholipids were obtained. We prepared also the sheep red cells sensitized with etiocholenic acid, cholesterol succinate and phosphatidic acid. Passive haemagglutination inhibition reaction using LDL and HDL as inhibitors was carried out. LDL reacted with the cholesterol succinate system and with the phosphatidic acid system, and HDL reacted with the etiocholenic acid system and with the phosphatidic acid system. These results suggest that the side chain of cholesterol directed to the outside of LDL molecule and the ring A of cholesterol directed toward the surface of HDL molecule. And the polar portion of phospholipids was on the surface of LDL and HDL molecules.View full abstractDownload PDF (580K) -
Stagnant Layer and Membrane Phase as Rate-determing StepsNoriaki Takeguchi, Akemi Kurata, Isamu Horikoshi1976 Volume 1 Issue 4 Pages 293-299
Published: November 25, 1976
Released on J-STAGE: May 24, 2011
JOURNAL FREE ACCESS1) Experimental studies have been made on permeability coefficients to a weak electrolyte of benzoic acid across a highly-charged polystyrene sulfonic acid-collodion membrane whose effective negative charge density is 0.12 M. The differential permeability coefficient Pm is defined as Pm=ΔlJm/ (C2-C1), where Jm is the flux of benzoic acid in moles per sec across unit area of the membrane that separates two aqueous solutions of the weak electrolyte at different concentrations C2 and C1 (C2<C1). Al is the membrane thickness.
2 It was found that at γ=C2/C1=constant, Pm is nearly constant of 2.5-4×10-9 when C2 is above 10-3. But below 10-3, Pm dependence on C2 is more complicated and dependent on γ. Pm decreases as C2 decreases at γ=50, but Pm increases as C2 decreases at γ=2. These observations are not in agreement with the results on transport of strong electrolytes such as KC1 across a charged membrane in which Pm has been shown to decrease to zero as C2 decreases at both low and high γ.
3 Considering concentration distributions of dissociated (φ-) and undissociated (Hφ) species of benzoic acid in aqueous solutions and the membrane phase, it is found that the transport of φ- across the stagnant layer on the side of C2 solution is a rate-determing step at low γ, and the concentration dependence of Jm is given by an equation of Jm=constant X (Cφ-)″, where (Cφ-)″ is the φ- concentration in the C2 solution. Furthermore, the transport of Hφacross the membrane phase is a rate-determing step at high γ (for example 5, 10, 50) and the concentration dependence of Jm is given as Jm=constant × (CHφ)″-(CHφ)″ where (CHφ)″ and (CHφ)″ ' is the HO concentrations in the C2 and C1 solutions, respectively.View full abstractDownload PDF (907K) -
M. Nakagaki1976 Volume 1 Issue 4 Pages 321-325
Published: November 25, 1976
Released on J-STAGE: October 21, 2010
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1976 Volume 1 Issue 4 Pages 325
Published: 1976
Released on J-STAGE: October 21, 2010
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