Hiroyuki Ohshima

Summary

Affiliation: Tokyo University of Science
Country: Japan

Publications

  1. ncbi request reprint Therapeutic effect of in vivo sustained estradiol release from poly (lactide-co-glycolide) microspheres on bone mineral density of osteoporosis rats
    Makoto Otsuka
    Department of Pharmaceutical Technology, Kobe Pharmaceutical University, Motoyama Kitamachi 4 19 1, Higashi Nada, Kobe 658 8558, Japan
    Biomed Mater Eng 12:157-67. 2002
  2. ncbi request reprint Modified Henry function for the electrophoretic mobility of a charged spherical colloidal particle covered with an ion-penetrable uncharged polymer layer
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Science University of Tokyo, 12 Ichigaya Funagawara machi, Shinjuku ku, Tokyo, 162 0826, Japan
    J Colloid Interface Sci 252:119-25. 2002
  3. doi request reprint Electrophoretic mobility of colloidal gold particles in electrolyte solutions
    Sagar M Agnihotri
    Center for Drug Delivery Research, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan
    Langmuir 25:4804-7. 2009
  4. ncbi request reprint Electrophoretic mobility of a soft particle in a salt-free medium
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Surface Science, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 269:255-8. 2004
  5. ncbi request reprint Electrophoretic mobility of a liquid drop in a salt-free medium
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 263:333-6. 2003
  6. ncbi request reprint On the limiting electrophoretic mobility of a highly charged colloidal particle in an electrolyte solution
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 263:337-40. 2003
  7. ncbi request reprint Dynamic electrophoretic mobility of spherical colloidal particles in a salt-free medium
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Surface Science, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 265:422-7. 2003
  8. ncbi request reprint Potential distribution around a polyelectrolyte-coated spherical particle in a salt-free medium
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Science University of Tokyo, 2641 Yamazaki, Noda, 278 8510, Chiba, Japan
    J Colloid Interface Sci 268:429-34. 2003
  9. ncbi request reprint Electrophoretic mobility of a highly charged colloidal particle in a solution of general electrolytes
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 275:665-9. 2004
  10. doi request reprint Electrostatic interaction of soft particles
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki Noda, Chiba 278 8510, Japan Electronic address
    Adv Colloid Interface Sci 226:2-16. 2015

Collaborators

Detail Information

Publications49

  1. ncbi request reprint Therapeutic effect of in vivo sustained estradiol release from poly (lactide-co-glycolide) microspheres on bone mineral density of osteoporosis rats
    Makoto Otsuka
    Department of Pharmaceutical Technology, Kobe Pharmaceutical University, Motoyama Kitamachi 4 19 1, Higashi Nada, Kobe 658 8558, Japan
    Biomed Mater Eng 12:157-67. 2002
    ..This suggested that all estradiol microspheres administration induced bone generation in osteoporosis rats...
  2. ncbi request reprint Modified Henry function for the electrophoretic mobility of a charged spherical colloidal particle covered with an ion-penetrable uncharged polymer layer
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Science University of Tokyo, 12 Ichigaya Funagawara machi, Shinjuku ku, Tokyo, 162 0826, Japan
    J Colloid Interface Sci 252:119-25. 2002
    ..This expression, which becomes Henry's mobility formula in the absence of the polymer layer, is a modification of Henry's mobility formula by taking into account the presence of the uncharged polymer layer...
  3. doi request reprint Electrophoretic mobility of colloidal gold particles in electrolyte solutions
    Sagar M Agnihotri
    Center for Drug Delivery Research, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan
    Langmuir 25:4804-7. 2009
    ..The effective electrokinetic surface charge is negative in KCl and sodium phosphate solutions. The zeta-potential shows a maximum absolute value in both electrolyte solutions (negative)...
  4. ncbi request reprint Electrophoretic mobility of a soft particle in a salt-free medium
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Surface Science, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 269:255-8. 2004
    ..For the high-charge case, however, mu becomes essentially constant, independent of the particle charge, due to the counterion condensation effect...
  5. ncbi request reprint Electrophoretic mobility of a liquid drop in a salt-free medium
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 263:333-6. 2003
    ..For the high-surface-charge case, however, mu becomes constant independent of the drop surface charge, since the counterion condensation takes place near the drop surface...
  6. ncbi request reprint On the limiting electrophoretic mobility of a highly charged colloidal particle in an electrolyte solution
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 263:337-40. 2003
    ..The electrophoretic mobility of a cylindrical particle in a tangential field, on the other hand, is proportional to the particle zeta potential and does not exhibit a constant limiting value for high zeta potentials...
  7. ncbi request reprint Dynamic electrophoretic mobility of spherical colloidal particles in a salt-free medium
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Surface Science, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 265:422-7. 2003
    ..A simple expression for the ratio mu(omega)/mu(0) applicable for all cases is given...
  8. ncbi request reprint Potential distribution around a polyelectrolyte-coated spherical particle in a salt-free medium
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Science University of Tokyo, 2641 Yamazaki, Noda, 278 8510, Chiba, Japan
    J Colloid Interface Sci 268:429-34. 2003
    ..In the high-charge case counterion condensation occurs in the polyelectrolyte layer region, so that the dependence of the potential on the particle charge is considerably suppressed...
  9. ncbi request reprint Electrophoretic mobility of a highly charged colloidal particle in a solution of general electrolytes
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 275:665-9. 2004
    ..2 mV for 1-2 electrolytes. It is also found that the magnitude of mu(infinity) increases as the valence of co-ions increases, whereas the magnitude of mu(infinity) decreases as the valence of counterions increases...
  10. doi request reprint Electrostatic interaction of soft particles
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki Noda, Chiba 278 8510, Japan Electronic address
    Adv Colloid Interface Sci 226:2-16. 2015
    ..Interactions of soft particles after contact of their surface layers are particularly discussed. Interaction in a salt-free medium and the discrete-charge effect are also treated. ..
  11. pmc Remarks on muscle contraction mechanism
    Toshio Mitsui
    Osaka University, Japan
    Int J Mol Sci 9:872-904. 2008
    ..Various experimental data on the muscle contraction are well explained based upon the model...
  12. pmc Shear stress transmission model for the flagellar rotary motor
    Toshio Mitsui
    Nakasuji yamate, Takarazuka, Japan
    Int J Mol Sci 9:1595-620. 2008
    ..The model gives clear calculation results in agreement with experimental observations, e g., for the characteristic torque-velocity relationship of the flagellar rotation...
  13. doi request reprint Electrical phenomena of soft particles. A soft step function model
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Phys Chem A 116:6473-80. 2012
    ..Approximate analytic expressions for the interaction energies between two similar soft spheres and between two similar soft cylinders are also derived with the help of Derjaguin's approximation...
  14. doi request reprint Approximate expression for the potential energy of the double-layer interaction between two parallel ion-penetrable membranes at small separations in an electrolyte solution
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 350:249-52. 2010
    ....
  15. ncbi request reprint Colloid vibration potential in a suspension of spherical colloidal particles
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Institute of Colloid and Interface Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    Colloids Surf B Biointerfaces 56:16-8. 2007
    ..This causes difficulty in analyzing the CVP in biological systems. In the present paper, we show that even in such cases the phase of CVP becomes much greater than that of IVP...
  16. ncbi request reprint Primary electroviscous effect in a moderately concentrated suspension of charged spherical colloidal particles
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, Japan
    Langmuir 23:12061-6. 2007
    ..It is shown that a maximum of p, which appears when plotted as a function of the particle zeta potential, is due to the relaxation effect as in the case of the electrophoresis problem...
  17. doi request reprint Primary electroviscous effect in a dilute suspension of soft particles
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    Langmuir 24:6453-61. 2008
    ..Because of the presence of this minimum, the difference in L between soft and hard particles becomes very large for large kappa a...
  18. doi request reprint The Donnan potential-surface potential relationship for a cylindrical soft particle in an electrolyte solution
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 323:313-6. 2008
    ..Numerical results obtained by the present method are in excellent agreement with exact results obtained by solving the nonlinear cylindrical Poisson-Boltzmann equations both inside and outside the polyelectrolyte layer...
  19. doi request reprint Electrostatic interaction between soft particles
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, Japan
    J Colloid Interface Sci 328:3-9. 2008
    ....
  20. doi request reprint Limiting electrophoretic mobility of a highly charged soft particle in an electrolyte solution: solidification effect
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 349:641-4. 2010
    ..When a approximately b, the obtained limiting mobility expression tends to the result for a rigid sphere. That is, the solidification effect is observed also for a soft particle...
  21. doi request reprint Electrostatic interaction between two cylindrical soft particles
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 333:202-8. 2009
    ....
  22. doi request reprint Effective viscosity of a concentrated suspension of uncharged spherical soft particles
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    Langmuir 26:6287-94. 2010
    ..Appl. Phys. 1952, 23, 1020) for a concentrated suspension of uncharged rigid spheres of radius b, while as lambda --> 0, it becomes that for uncharged rigid spheres of radius a...
  23. ncbi request reprint Primary electroviscous effect in a dilute suspension of charged mercury drops
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    Langmuir 22:2863-9. 2006
    ..Phys. 1906, 19, 289), whereas in the opposite limit of low zeta potential the effective viscosity approaches that of a suspension of uncharged liquid drops derived by Taylor (Taylor, G. I. Proc. R. Soc. London, Ser. A 1932, 138, 41)...
  24. ncbi request reprint Electrophoresis of soft particles: analytic approximations
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Tokyo University of Science, Noda, Chiba, Japan
    Electrophoresis 27:526-33. 2006
    ....
  25. ncbi request reprint Colloid vibration potential and ion vibration potential in a dilute suspension of spherical colloidal particles
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    Langmuir 21:12100-8. 2005
    ..It is also shown that the CVP from particles with very small kappaalpha approaches IVP; that is, in the limit of very small kappaalpha a particle behaves like an ion...
  26. ncbi request reprint A theory of overshoot phenomena in an ion-exchange membrane system
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki Noda, Chiba 278 8510, Japan
    Colloids Surf B Biointerfaces 39:53-6. 2004
    ..Neihof, K. Sollner, J. Phys. Chem. 61 (1957) 159]...
  27. ncbi request reprint Approximate analytic expression for the dynamic electrophoretic mobility of a spherical colloidal particle in an oscillating electric field
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    Langmuir 21:9818-23. 2005
    ..It is shown that the obtained mobility expression is in excellent agreement with the exact numerical results of Mangelsdorf and White (J. Chem. Soc., Faraday Trans. 1992, 88, 3567)...
  28. ncbi request reprint Electroosmotic velocity in an array of parallel soft cylinders in a salt-free medium
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    Colloids Surf B Biointerfaces 38:139-41. 2004
    ....
  29. doi request reprint Donnan potential and surface potential of a spherical soft particle in an electrolyte solution
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 323:92-7. 2008
    ..Numerical results obtained by the present method are in excellent agreement with exact results obtained by solving the nonlinear spherical Poisson-Boltzmann equations for the both regions inside and outside the polyelectrolyte layer...
  30. doi request reprint The van der Waals interaction between two torus-shaped colloidal particles
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    J Colloid Interface Sci 332:251-3. 2009
    ..This limiting value also agrees with the result of applying Derjaguin's approximation to the interaction between two parallel cylinders...
  31. ncbi request reprint Micelle formation effect on electroacoustics in an aqueous surfactant solution: colloid vibration current and ion vibration current
    Youichi Takata
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Chiba, Japan
    J Oleo Sci 58:557-63. 2009
    ..In addition, the theoretical equation of vibration current enabled us to estimate the partial molar volume of surfactant ions from the different behavior of vibration current in the concentration regime lower than CMC...
  32. doi request reprint Electrophoretic mobility of a colloidal particle with constant surface charge density
    Kimiko Makino
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    Langmuir 26:18016-9. 2010
    ..As an example, the present method is applied to electrophoretic mobility data on gold nanoparticles (Agnihotri, S. M.; Ohshima, H.; Terada, H.; Tomoda, K.; Makino, K. Langmuir 2009, 25, 4804)...
  33. ncbi request reprint Effect of ionic surfactants on ion vibration current and colloid vibration current
    Youichi Takata
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Chiba, Japan
    J Oleo Sci 59:401-6. 2010
    ..Employing the fluorocarbon surfactant, on the other hand, there appeared a fairly large change compared to the hydrocarbon surfactant. This implies that the density contrast between medium and micelle is significant for TVI...
  34. ncbi request reprint Proposed model for the flagellar rotary motor
    Toshio Mitsui
    Nakasuji Yamate 3 6 24, Takarazuka 665 0875, Japan
    Colloids Surf B Biointerfaces 46:32-44. 2005
    ..8) How the flagellar rotation velocity changes when the direction of the proton passage is reversed. (9) The motor has a switch that reverses the sense of the flagelllar rotation with the same absolute value of torque...
  35. ncbi request reprint Overshoot and oscillation in surface tension of gelatin solutions
    Atsushi Hyono
    Faculty of Pharmaceutical Sciences, Institute of Colloid and Surface Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    Colloids Surf B Biointerfaces 39:65-8. 2004
    ..The delay time and the rate constants of adsorption and desorption of gelatin molecules onto the air/gelatin solution interface have been evaluated...
  36. ncbi request reprint Adsorption of surfactant ions and binding of their counterions at an air/water interface
    Hiroaki Tagashira
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Chiba, Japan
    J Oleo Sci 58:285-93. 2009
    ..Furthermore, it was found that the configurational entropy plays a predominant role for the surface tension, compared to the electrical work...
  37. ncbi request reprint Electrophoretic mobility of a spherical colloidal particle in a salt-free medium
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Science University of Tokyo, 12 Ichigaya Funagawara machi, Shinjuku ku, Tokyo, 162 0826, Japan
    J Colloid Interface Sci 248:499-503. 2002
    ..This is due to the effect of counter ion condensation in the vicinity of the particle surface...
  38. doi request reprint Dissolution medium responsive simvastatin release from biodegradable apatite cements and the therapeutic effect in osteoporosis rats
    Hideyuki Hamada
    Graduate School of Pharmaceutical Sciences, Tokyo University of Science, Noda, Chiba, Japan
    J Appl Biomater Funct Mater 10:22-8. 2012
    ..The result indicated that the bone mineral density of APD implanted rat was significantly higher than that of control diseased. The result indicated that the device was therapeutically useful to bone regeneration...
  39. ncbi request reprint Electrophoretic mobility of a charged spherical colloidal particle covered with an uncharged polymer layer
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Science University of Tokyo, Tokyo, Japan
    Electrophoresis 23:1995-2000. 2002
    ..Approximate analytic expressions for the electrophoretic mobility of particles carrying low zeta potentials are derived for the two extreme cases in which the particle radius is very large or very small...
  40. ncbi request reprint Numerical calculation of the electrophoretic mobility of a spherical particle in a salt-free medium
    Hiroyuki Ohshima
    Faculty of Pharmaceutical Sciences and Institute of Colloid and Interface Science, Science University of Tokyo, 12 Ichigaya Funagawara machi, Shinjuku ku, Tokyo 162 0826, Japan
    J Colloid Interface Sci 262:294-7. 2003
    ..It is shown how the mobility values deviate from those expected from Hückel's formula for high particle charges or zeta potentials because of the counterion condensation effect...
  41. doi request reprint Impacts of papain and neuraminidase enzyme treatment on electrohydrodynamics and IgG-mediated agglutination of type A red blood cells
    Atsushi Hyono
    Faculty of Pharmaceutical Science, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    Langmuir 25:10873-85. 2009
    ..This is experimentally confirmed by agglutination data collected for papain- and neuraminidase-treated cells...
  42. pmc Soft particle analysis of electrokinetics of biological cells and their model systems
    Kimiko Makino
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan Center for Colloid and Interface Science, Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan Center for Physicl Pharmaceutics, Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278 8510, Japan
    Sci Technol Adv Mater 12:023001. 2011
    ..As a model system, hydrogel surfaces that mimic biological surfaces were also prepared and their surface properties were studied...
  43. pmc Remarks on muscle contraction mechanism II. Isometric tension transient and isotonic velocity transient
    Toshio Mitsui
    Osaka University, 1 1 Yamadaoka, Suita, Osaka, 565 0871, Japan
    Int J Mol Sci 12:1697-726. 2011
    ..Ratios of the extensibility are estimated as 0.22 for the crossbridge, 0.26 for the myosin filament and 0.52 for the actin filament, in consistency with the values determined by X-ray diffraction by Wakabayashi et al. (1994)...
  44. ncbi request reprint Effect of geometrical structure on the biodegradation of a three-dimensionally perforated porous apatite/collagen composite bone cell scaffold
    Hideyuki Hamada
    Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Chiba 278 8510, Japan
    Biol Pharm Bull 33:1228-32. 2010
    ..This suggested that the block was bioabsorbed significantly with time. In contrast, the absorption of APC and APN did not decrease, indicating that the blocks were not bioabsorbed...
  45. ncbi request reprint Electrophoresis of diffuse soft particles
    Jerome F L Duval
    Department of Physical Chemistry and Colloid Science, Wageningen Universiteit, Dreijenplein 6, 6703 HB Wageningen, The Netherlands
    Langmuir 22:3533-46. 2006
    ..The theory constitutes a basis for interpreting electrophoretic mobilities of heterogeneous systems such as environmental or biological colloids or swollen/deswollen microgel particles...
  46. ncbi request reprint Colloidal stability of aqueous polymeric dispersions: effect of pH and salt concentration
    Yasuhiro Ishikawa
    Pharmaceutical Research Center, Kyowa Hakko Kogyo Co Ltd, 1188 Shimotogari, Nagaizumi cho, Sunto gun, Shizuoka 411 8731, Japan
    Colloids Surf B Biointerfaces 42:53-8. 2005
    ..However, the stabilization of the neutral latex did not match the calculated result. The steric interaction produced by the surfactant likely resulted in the stable dispersion of this latex...
  47. pmc A hexanucleotide sequence (dC1-dC6 tract) restricts the dC-specific cleavage of single-stranded DNA by endonuclease IV of bacteriophage T4
    Hiroyuki Ohshima
    Department of Applied Biological Science, Nihon University College of Bioresource Sciences, Fujisawa shi, Kanagawa 252 8510, Japan
    Nucleic Acids Res 35:6681-9. 2007
    ..A model for the dCs tract-dependent cleavage is proposed...
  48. ncbi request reprint Characterization of latex particles for aqueous polymeric coating by electroacoustic method
    Yasuhiro Ishikawa
    Pharmaceutical Research Center, Kyowa Hakko Kogyo Co Ltd, 1188 Shimotogari, Nagaizumi cho, Sunto gun, Shizuoka 411 8731, Japan
    Colloids Surf B Biointerfaces 46:147-51. 2005
    ..The experimental results of stability in the concentrated latex dispersions can be explained by the total interaction energies...
  49. ncbi request reprint Colloidal stability of aqueous polymeric dispersions: effect of water insoluble excipients
    Yasuhiro Ishikawa
    Pharmaceutical Research Center, Kyowa Hakko Kogyo Co Ltd, 1188 Shimotogari, Sunto gun, Shizuoka 411 8731, Japan
    Colloids Surf B Biointerfaces 45:35-41. 2005
    ..We also calculated the binding constant of iron oxide yellow for C-latex at pH 10. The value of the constant was determined to be 1.1 x 10(-2)...