HIROKI MATSUBARA

Last Updated :2023/01/20

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Associate Professor
E-mail
hmtbrhiroshima-u.ac.jp

Basic Information

Major Professional Backgrounds

  • 2000/04/01, 2003/03/31, Kyushu University, Graduate School of Science, JSPS Research Fellowship for Young Scientists (DC1)
  • 2003/04/01, 2003/09/30, Tokyo University of Science, Faculty of Pharmaceutical Science, JSPS Research Fellowship for Young Scientists (PD)
  • 2003/10/01, 2015/07/31, Kyushu University, Department of Chemistry, Faculty of Science, Assistant Professor
  • 2015/08/01, 2020/03/31, Kyushu University, Department of Chemistry, Faculty of Science, Associate Professor
  • 2020/04/01, Hiroshima University, Graduate School of Advanced Science and Engineering, Associate Professor

Educational Backgrounds

  • Kyushu University, Faculty of Science, Department of Chemistry, 1994/04, 1998/03
  • Kyushu University, Graduate School of Science, Chemistry and Physics of Condensed Matter, Master Course, 1998/04, 2000/03
  • Kyushu University, Graduate School of Science, Chemistry and Physics of Condensed Matter, Doctor Course, 2000/04, 2003/03
  • Oxford University, Colin Bain Lab., UK, 2001/03, 2002/02

Academic Degrees

  • Kyushu University
  • Kyushu University

Research Fields

  • Chemistry;Basic chemistry;Physical chemistry
  • Mathematical and physical sciences;Physics;Biological physics / Chemical physics / Soft matter physics

Research Keywords

  • Surfactant, wetting, dewetting, emulsion, foam, chemical thermodynamics, surface characterization

Educational Activity

Course in Charge

  1. 2022, Liberal Arts Education Program1, Intensive, Introduction to Science
  2. 2022, Liberal Arts Education Program1, Intensive, Introduction to Science
  3. 2022, Undergraduate Education, 3Term, Introduction to Chemistry B
  4. 2022, Liberal Arts Education Program1, 1Term, Introductory Seminar for First-Year Students
  5. 2022, Undergraduate Education, 4Term, Advanced Chemistry
  6. 2022, Undergraduate Education, First Semester, Special Study for Graduation
  7. 2022, Undergraduate Education, Second Semester, Special Study for Graduation
  8. 2022, Undergraduate Education, Second Semester, Exercises in Inorganic Chemistry
  9. 2022, Undergraduate Education, First Semester, Chemical Experiments I
  10. 2022, Undergraduate Education, Second Semester, Chemical Experiments II
  11. 2022, Graduate Education (Master's Program) , 1Term, Introduction to Inorganic Chemistry
  12. 2022, Graduate Education (Master's Program) , 1Term, Exercises in Chemistry A
  13. 2022, Graduate Education (Master's Program) , 2Term, Exercises in Chemistry A
  14. 2022, Graduate Education (Master's Program) , 3Term, Exercises in Chemistry B
  15. 2022, Graduate Education (Master's Program) , 4Term, Exercises in Chemistry B
  16. 2022, Graduate Education (Master's Program) , Academic Year, Master's Thesis in Chemistry
  17. 2022, Graduate Education (Doctoral Program) , Academic Year, Doctoral Thesis in Chemistry

Research Activities

Academic Papers

  1. ★, Nucleation of Surfactant-Alkane Mixed Solid Monolayer and Bilayer Domains at the Air-Water Interface, Materials, 15, 485, 2022
  2. ★, Controlling Foam Film Stability Based on Thermodynamics of Mixed Surfactant Adsorbed Films, Membrane, 46, 275-281, 2021
  3. ★, Relation between ionic surfactant concentration and thickness of foam film stabilized by ionic – nonionic surfactant mixed adsorbed films, Colloids and Surfaces A, 625, 126915, 2021
  4. Fabrication of Paper-Based Microfluidic Devices using a Laser Beam Scanning Technique, Analytical Science, 36, 1275-1279, 2020
  5. ★, Pickering emulsion transitions in 2,6-lutidine + water critical liquid mixtures, Langmuir, 36(42), 12601-12606, 2020
  6. ★, Surface Freezing of Cetyltrimethylammonium Chloride–Hexadecanol Mixed Adsorbed Film at Dodecane–Water Interface, Langmuir, 36, 14811-14818, 2020
  7. ★, Controlling Interfacial Properties Using Mixed Adsorbed Film Formation of Surfactant and Oil, Journal of the Japan Society of Colour Material, 93, 73-77, 2020
  8. ★, Thinning and thickening transitions of foam film induced by 2D liquid–solid phase transitions in surfactant–alkane mixed adsorbed films, Advances in Colloid and Interface Science, 282, 102206, 2020
  9. ★, Common Black Film Stability and Synergetic Adsorption in Ionic−Nonionic Mixed Surfactant Systems, Colloids and Surfaces A, 582, 123932, 2019
  10. ★, Unique Interfacial Phenomena on Macroscopic and Colloidal Scales Induced by Two-Dimensional Phase Transitions, Langmuir, 35, 1989-2001, 2019
  11. Intentionally Added Ionic Surfactants Induce Jones-Ray Effect at Air-Water Interface, Colloids and Interface Science Communications, 27, 45-48, 2018
  12. Effect of the Headgroup Structure on Counterion Binding in Adsorbed Surfactant Films Investigated by Total Reflection X-ray Absorption Fine Structure Spectroscopy, Bull. Chem. Soc. Jpn., 91, 1487-1494, 2018
  13. ★, Effect of Surface Phase Transition on OW Emulsion Stability, Langmuir, 34, 6205-6209, 2018
  14. Surface dilational viscoelasticity of aqueous surfactant solutions by surface quasi-elastic light scattering, Colloid and Polymer Science, 296, 781-794, 2018
  15. ★, Finite-size and solvent dependent line tension effects for nanoparticles at the air-liquid surface, Langmuir, 34, 331-340, 2018
  16. Surface freezing and molecular miscibility of binary fluoroalkanol-alkanol liquid mixture, Colloids and Surfaces A, 525, 31-37, 2017
  17. ★, Line tension and its influence on droplets and particles at surfaces, Progress in Surface Science, 92, 1-39, 2017
  18. ★, A competitive relationship between wetting of oil lens and condensed film formation of fluorinated alkanol at the air-water interface, Journal of Nanoscience and Nanotechnology, 13, 734-747, 2016
  19. ★, Effect of Alkane Chain Length and Counterion on the Freezing Transition of Cationic Surfactant Adsorbed Film at Alkane Mixture-Water Interfaces, J. Phys. Chem. B, 119, 6235-6241, 2015
  20. ★, Liquid droplet coalescence and fragmentation at the aqueous-air surface, Langmuir, 31, 132-139, 2015
  21. Effect of Hydrophobic Chain Structure on Phase Transition and Domain Formation of Hybrid Alcohol Films Adsorbed at the Hexane/Water Interface, J. Phys. Chem. B, 482, 12436-12345, 2015
  22. Adsorbed Film of n-Tetradecylphosphocholine at the Tetradecane/Water Interface Studied by Interfacial Tensiometry and X-ray Reflection, Colloids and Surfaces A, 482, 454-463, 2015
  23. ★, Line tension of alkane lenses on aqueous surfactant solutions at phase transitions of coexisting interfaces, Advances in Colloid and Interface Science, 206, 186-194, 2014
  24. Effect of molecular orientation on monolayer and multilayer formations of fluorocarbon alcohol and fluorocarbondiol Mixture at the hexane/water Interface, J. Phys. Chem. B, 118, 12451-12461, 2014
  25. Probing the self-aggregation behavior and counter ion distribution of a copper surfactant complex, New Journal of Chemistry, 38, 3925-3932, 2014
  26. Miscibility of imidazolium and pyridinium ionic liquids including BF4 - at the air/water interface, Colloids and Surfaces A, 441, 59-65, 2014
  27. Surface Freezing and Molecular Miscibility of Binary Alkane-Alkane and Fluoroalkane-Alkane Liquid Mixtures, J. Phys. Chem. B, 118, 1519-1526, 2014
  28. Thermodynamic study on the interaction of imidazolium salts and POE-type nonionic surfactant in the adsorbed film, Colloid and Polymer Science, 292, 1209-1215, 2014
  29. ★, Morphological transformation of alkane solid domains on surfactant solutions, J. Phys. Chem. Lett., 4, 844-848, 2013
  30. ★, Effect and mixing of counter anions at the surface of aqueous solution of imidazolium-based ionic liquids, 427, 26-32, 2013
  31. Synergistic interaction of short-chain phospholipids in the adsorbed film and micelles: Study by surface tension and dilational viscoelasticity measurements, J. Phys. Chem. C, 117, 1097-1104, 2013
  32. Temperature effect on the surface phase transitions of monolayer films of C12E1 at Air/Water interface, Colloid and Polymer Science, 291, 2647-2652, 2013
  33. ★, Wetting in oil-surfactant-water systems, Current Opinion in Colloid and Interface Science, 17, 196-204, 2012
  34. ★, X-ray reflectivity measurements for freezing transitions of alkane wetting film on surfactant solution surface, Bull. Chem. Soc. Jpn., 86, 492-496, 2012
  35. ★, Study on the distribution of binary mixed counterions in surfactant adsorbed films by total reflection XAFS measurements, J. Colloid Interface Sci., 388, 219-224, 2012
  36. Multilayer Formation of the Fluoroalkanol−omega-Hydrogenated Fluorocarbon Mixture at the Hexane/Water Interface Studied by Interfacial Tensiometry and X-ray Reflection, J. Phys. Chem. B, 116, 13739-13748, 2012
  37. ★, Line Tension at Freezing Transition of Alkane Wetting Film on Aqueous Surfactant Solutions, Colloids and Surfaces A, 390, 33-39, 2012
  38. ★, Thin-Thick Transition of Foam Film Driven by Phase Transition of Surfactant-Alkane Mixed Adsorbed Film, Chem. Lett., 41, 1300-1302, 2012
  39. Dynamics of condensed monolayer and multilayer formation of hexadecylpyridinium chloride-sodium dodecyl sulfate mixed systems at the air/water interface, Chem. Lett., 41, 1218-1220, 2012
  40. ★, Specific counterion effect on the adsorbed film of cationic surfactant mixtures at the air/water interface, J. Colloid Interface Sci., 359, 189-193, 2011
  41. Miscibility and multilayer formation of fluoroalkane-alpha-omega-diol mixtures at the air/water interface, J. Phys. Chem. B, 115, 471-477, 2011
  42. Structural and morphological transition of long-chain phospholipid vesicles induced by mixing with short-chain phospholipid, Colloids and Surfaces B, 76, 571-576, 2010
  43. ★, Freezing transition of wetting film of tetradecane on tetradecyltrimethylammonium bromide solutions, Colloid and Polymer Science, 288, 1333-1339, 2010
  44. ★, Effect of temperature and counterion on adsorption of imidazolium ionic liquids at air-water interface, Colloids and Surfaces A, 370, 113-119, 2010
  45. ★, Study on surface adsorption from cationic surfactant-electrolyte mixed aqueous solution including BF4- ion, Colloid and Polymer Science, 288, 1005-1011, 2010
  46. Molecular orientation and miscibility of fluorinated alpha, omega-alkanediol and alcohol at the hexane/water interface, Colloids and Surfaces A, 354, 205-209, 2010
  47. Thermodynamic and structure studies of Gibbs films at soft interfaces, J. Thermal Analysis Calorimetry, 99, 51-55, 2010
  48. ★, First-Order Wetting Transition and Line Tension of Hexadecane Lens at Air/Water Interface Assisted by Surfactant Adsorption, Bull. Chem. Soc. Jpn., 83, 1198-1202, 2010
  49. ★, Surface adsorption and micelle formation of aqueous solutions of polyethyleneglycol and sugar surfactants, Colloid and Polymer Science, 287, 1077-1082, 2009
  50. ★, Surface Adsorption and Aggregate Formation of Cationic Gemini Surfactant and Long Chain Alcohol Mixtures, J. Phys. Chem. B, 113, 8847-8853, 2009
  51. Molecular orientation and multilayer formation in the adsorbed film of 1H,1H,10H,10H-perfluorodecane-1,10-diol at the hexane/water interface; Pressure effect on the adsorption of fluoroalkane-diol, J. Phys. Chem. B, 113, 14667-14673, 2009
  52. Miscibility and distribution of counterions of imidazolium ionic liquid mixtures at the air/water surface, Langmuir, 25, 9954-9959, 2009
  53. Phase transition and domain formation in the Gibbs adsorbed films of long-chain alcohols, J. Phys. Chem. B, 113, 6347-6352, 2009
  54. Molecular orientation and multilayer formation of 1H,1H,8H,8H- perfluorooctane-1,8-diol at the air/water interface, J. Phys. Chem. B, 113, 6305-6310, 2009
  55. Molecular orientation and multilayer formation in the adsorbed film of 1H,1H,10H,10H-perfluorodecane-1,10-diol at the hexane/water interface; Temperature effect on the adsorption of fluoroalkane-diol, J. Phys. Chem. C, 112, 5078-5084, 2008
  56. Effect of the Partial Hydrogenation of Hydrophobic Chains on the Mixing of Fluoroalkanols in an Adsorbed Films at the Hexane/Water Interface, J. Phys. Chem. C, 112, 4564-4568, 2008
  57. ★, Wetting and Freezing of Hexadecane on an Aqueous Surfactant Solution: Triple Point in a 2-D Film, J. Phys. Chem. B, 112, 11664-11668, 2008
  58. Adsorption of 1-decyl-3-methylimidazolium bromide and solvation structure of bromide at the air-water interface, Analytical Sciences, 24, 1279-1283, 2008
  59. ★, Study on line tension of air/hexadecane/aqueous surfactant system, Colloid and Polymer Science, 286, 647-654, 2008
  60. Spontaneous Vesicle Formation of Mixtures of Double-Chain Cationic Surfactants with a Different Counterion, J. Phys. Chem. B, 112, 12304-12311, 2008
  61. Preferential adsorption of cationic surfactant mixture studied by bromide ion selective total-reflection XAFS measurement, Langmuir, 24, 6693-6697, 2008
  62. ★, Surface adsorption and aggregate formation of aqueous binary mixture of cationic surfactant and sugar surfactant, Colloids and Surfaces A, 315, 183-188, 2008
  63. Interfacial tension and wetting behavior of air/oil/ionic liquid systems, Colloid and Polymer Science, 285, 1601-1605, 2007
  64. ★, Effect of molecular structure of oil on wetting transition on surfactant solutions, Colloids and Surfaces A, 301, 141-146, 2007
  65. Analysis of Dynamic Surface Tension of Tetraethyleneglycol Monooctyl Ether at Air/Water Interface, Colloid and Polymer Science, 285, 1699-1705, 2007
  66. Adsorption and micelle formation of alkylammonium chloride-alkyltrimethylammonium chloride mixtures, J. Colloid Interface Sci., 310, 240-245, 2007
  67. Spontaneous Vesicle Formation of Single Chain and Double Chain Cationic Surfactant Mixtures, J. Phys. Chem. B, 111, 107-115, 2007
  68. Counter Ion Effect on Phase Behavior in Adsorbed Film of Fluoroalkanol and Cationic Surfactant Mixture, Colloids and Surfaces A, 301, 36-41, 2007
  69. Interfacial tension studies of crown ethers at air/water and hexane/water interfaces, J. Colloid Interface Sci., 316, 25-30, 2007
  70. Adsorption and phase transition of alkanol and fluoroalkanol at electrified mercury/aqueous solution interface, J. Colloid Interface Sci., 295(209), 217, 2006
  71. ★, Lattice Model for the Wetting Transition of Alkanes on Aqueous Surfactant Solutions, Langmuir, 22, 982-988, 2006
  72. Study on the Surface Density of Surface-Active Substances through Total-Reflection X-ray Absorption Fine Structure Measurement, Langmuir, 22, 8403-8408, 2006
  73. Surface Phase Transition of C12E1 at the Air/Water Interface: A Study by Dynamic Surface Tension, External RA FT-IR, and 2D IR Correlation Methods, J. Phys. Chem. B, 110, 17034-17042, 2006
  74. ★, Effect of Preferential Adsorption on the Synergism of a Homologous Cationic Surfactant Mixture, Langmuir, 22, 2511-2515, 2006
  75. ★, Line Tension and Wetting Behavior of an Air/Hexadecane/Aqueous Surfactant System, Langmuir, 21, 8594-8596, 2005
  76. ★, Wetting of Surfactant Solutions by Alkanes, Chem. Phys. Chem., 6, 547-555, 2005
  77. Effect of omega-hydrogenation on the adsorption of fluorononanols at the hexane/water interface: Miscibility in the adsorbed film of fluorononanols, J. Phys. Chem. B, 109, 22366-22370, 2005
  78. Effect of omega-Hydrogenation on the Adsorption of Fluorononanols at the Hexane/Water Interface: Pressure Effect on the Adsorption of Fluorononanols, J. Phys. Chem. B, 109, 16429-16434, 2005
  79. Effect of omega-Hydrogenation on the Adsorption of Fluorononanols at the Hexane/Water Interface: Temperature Effect on the Adsorption of Fluorononanols, J. Phys. Chem. B, 109, 14154-14159, 2005
  80. ★, Effects of alkyl chain length on synergetic adsorption and micelle formation in homologous cationic surfactant mixtures, Langmuir, 21, 8131-8137, 2005
  81. Novel Phase Behavior in Adsorbed Film of Fluoroalkanol and Cationic Surfactant Mixture, Colloids and Surfaces A, 250, 443-448, 2004
  82. Effect of molecular packing on adsorption and micelle formation of a homologous cationic surfactant mixture of hexadecyltrimethylammonium bromide and dodecyltrimethylammonium bromide, Colloid and Polymer Science, 283, 329-334, 2004
  83. Nonideal Mixing of Dodecyltrimethylammonium Halides and Nonionic Surfactant in Adsorbed Films and Micelles, Colloid and Polymer Science, 282, 324-329, 2004
  84. A Theory of Adsorption Kinetics with Time Delay and its Application to Overshoot and Oscillation in the Surface Tension of Gelatin Solution, Colloid and Polymer Science, 282, 1174-1178, 2004
  85. Surface Tension of Electrolyte Solutions, Colloid and Polymer Science, 282, 1044-1048, 2004
  86. Overshoot and Oscillation in Surface Tension of Gelatin Solutions, Colloids and Surfaces B, 39, 65-68, 2004
  87. ★, Interfacial Films and Wetting Behavior of Hexadecane on Aqueous Solutions of Dodecyltrimethylammonium Bromide, Langmuir, 19, 2249-2253, 2003
  88. Phase Transition and Miscibility of Binary Surfactant Mixtures in the Adsorbed Film at the Air/Water Surface, J. Colloid Interface Sci., 256, 411-417, 2002
  89. Interaction between polyoxyethylene nonyl phenyl ether (n = 9) and gold (III) ion in the adsorbed film and micelle, Colloid and Polymer Science, 280, 936-941, 2002
  90. ★, Interfacial Films and Wetting Behavior of the Air/Hexadecane/Aqueous Solution of a Surfactant System, Langmuir, 17, 7344-7349, 2001
  91. ★, Interaction between Ionic and Nonionic Surfactants in the Adsorbed Film and Micelle. 3. Sodium Dodecyl Sulfate and Tetraethylene Glycol Monooctyl Ether, Langmuir, 17, 7752-7577, 2001
  92. Miscibility of Binary Surfactant Mixtures in the Adsorbed Film and Micelle: the Effect of Size of Polar Head Group, Colloids and Surfaces A, 183-185, 403-413, 2001
  93. Thermodynamic Study on Phase Transition in Adsorbed Film of Fluoroalkanol at the Hexane/Water Interface. 8. Phase Transition and Miscibility in the Adsorbed Film of Fluoroalkanol Mixture, J. Phys. Chem. B, 105, 789-795, 2001
  94. ★, Interaction between Ionic and Nonionic Surfactants in the Adsorbed Film and Micelle. Dodecylammonium Chloride and Tetraethylene Glycol Monooctyl Ether, Langmuir, 16, 7589-7596, 2000
  95. Thermodynamic Study on Phase Transition in Adsorbed Film of Fluoroalkanol at the Hexane/Water Interface. 7. Pressure Effect on the Miscibility in the Adsorbed Film of Alkanol and Fluoroalkanol Mixture, J. Phys. Chem. B, 104, 7096-7101, 2000
  96. ★, Interaction between Ionic and Nonionic Surfactants in the Adsorbed Film and Micelle. Hydrochloric Acid, Sodium Chloride and Tetraethylene Glycol Monooctyl Ether, Langmuir, 15, 5496-5499, 1999

Publications such as books

  1. 2016, Encyclopedia of Biocolloid and Biointerfacial Science, Impact of line tension on colloidal systems, John Wiley & Sons, Joint work
  2. 2010, Without Bounds: A Scientific Canvas of Nonlinearity and Complex Dynamics, Wetting transition and line tension of oil on water, Springer, Joint work
  3. 2007, Colloidal Stability, Surface Forces in Wetting Phenomena in Fluid Systems, Wiley-VCH, Joint work

Invited Lecture, Oral Presentation, Poster Presentation

  1. Surface freezing driven enhanced OW emulsion stability, H. Matsubara, H. Sakamoto, A. Prause, M. Gradzielski, The 51st Conference of the German Colloid Society, 2022/09, With Invitation, English
  2. Controlling Colloidal Systems by A-W and O-W Interfacial Free Energies, H. Matsubara, RSU International Research Conference 2022, 2022/04/29, With Invitation, English, Thailand
  3. Surface freezing of cetyltrimethylammonium chloride – hexadecanol mixed adsorbed film at dodecane-water interface, H. Matsubara, M. Gradzielski, International Symposium of the 72nd Divisional Meeting of Colloid and Interface Science, 2021/09/21, With Invitation, English
  4. Finite-size line tension effects for nanoparticles at the air-liquid and liquid-liquid interfaces, International Conference on Colloid & Surface Science, 2019/11, With Invitation, English, Okinawa, Japan
  5. Unique Colloidal Systems from Simple Components -Utilization of 2D Phase Transition-, IRTG 1524 colloquium on Self-Assembled Soft-Matter Nanostructures at Interfaces, 2017/03, With Invitation, English, Berlin, Germany
  6. Regulation of Counterion Binding in the Foam Films Stabilized by Cationic-Nonionic Surfactant Mixed Adsorbed Films, International Conference of Colloids and Interface Science 2015, 2015/07, With Invitation, English, Taipei, Taiwan
  7. Effect of phase transition of surfactant adsorbed films on the stability of foam and emulsion systems, Energy Material Nanotechnology Meeting on Droplets, 2015/05, With Invitation, English, Phuket, Thailand
  8. Line tension of alkane lenses on aqueous surfactant solutions at phase transitions of coexisting interfaces, Annual Meeting of Taiwan Colloid and Interface Science Society, 2014/07, With Invitation, English, Tainan, Taiwan
  9. Condensed film formation of cationic surfactant at the air-water and oil-water interfaces and its application to foam and emulsion stability, Asian International Symposium @ CSJ Annual Meeting, 2013/03, With Invitation, English, Nagoya, Japan
  10. Line tension measurement at freezing transitions of wetting film on surfactant solutions, The 3rd International Kyushu Colloid Colloquium Soft Assemblies and Particles in Solution and Interfaces, 2010/09, With Invitation, English, Fukuoka, Japan
  11. Wetting Transition of Alkane Lens on Surfactant Solutions, International Conference on Nanoscopic Colloid and Surface Science, 2010/09, With Invitation, English, Tokyo, Japan

Awards

  1. 2020, Invited Review, Advances in Colloid and Interface Science, Thinning and thickening transitions of foam film induced by 2D liquid–solid phase transitions in surfactant–alkane mixed adsorbed films