NIRT for Nanostructured Porous Ceramics
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The following publications have resulted in whole or in part from NSF grant DMR-0210517, NIRT: Tailored Fluorinated Surfactants for Templating of Ordered Nanoporous Ceramics

  1. K. Ghosh, S. Bashadi, H.J. Lehmler, S.E. Rankin and B.L. Knutson, “Pore Size Engineering in Fluorinated Surfactant Templated Mesoporous Silica Powders through Supercritical Carbon Dioxide Processing, Micropor. Mesopor. Mater. 2008 in press.
    Swelling of fluorocarbon surfactant-templated materials due to CO2

  2. R. Xing and S.E. Rankin, "Reactive Pore Expansion During Ammonia Vapor Post-Treatment of Ordered Mesoporous Silica Prepared with Mixed Glucopyranoside and Cationic Surfactants," Microporous and Mesoporous Materials 2008 108: 65-76. [Article]
    Pore diameter of materials with and without ammonia treatment

  3. W. Xie, I. Kania-Korwel, P.M. Bummer and H.J. Lehmler, "Effect of potassium perfluorooctanesulfonate, perfluorooctanoate and octanesulfonate on the phase transitions of dipalmitoylphosphatidylcholine (DPPC) bilayers," Biochim. Biophys. Acta - Biomembranes 2007 1768: 1299. [Article]

  4. G. Osei-Prempeh, H.-J. Lehmler, S.E. Rankin and B.L. Knutson, "Synthesis of Fluoro-Functionalized Mesoporous Silica and Application to Fluorophilic Separations," Industrial and Engineering Chemistry Research 2007 in press.
    [Article]

  5. R. Xing and S.E. Rankin, "Use of the Ternary Phase Diagram of a Mixed Cationic / Glucopyranoside Surfactant System to Predict Mesostructured Silica Synthesis," Journal of Colloid and Interface Science 2007 316: 930-938. [Article]
    Phase diagram of mixed cationic / glucopyranoside system

  6. K. Ghosh, S.M. Vyas, H.J. Lehmler, S.E. Rankin and B.L. Knutson, "Tailoring Porous Silica Films through Supercritical Carbon Dioxide Processing of Fluorinated Surfactant Templates," The Journal of Physical Chemistry B 2006 111: 363-370. [Article]


  7. B. Tan, S.M. Vyas, H.J. Lehmler, B.L. Knutson and S.E. Rankin, "Synthesis of Inorganic and Organic-Inorganic Hybrid Hollow Particles Using a Cationic Surfactant with a Partially Fluorinated Tail," Advanced Functional Materials 2006 17: 2500-2508. [Article]
    The recently synthesized surfactant 1-(10-perfluorooctyldecyl)pyridinium bromide co-assembles with hydrolyzed alkoxysilane precursors to form several unusual ordered porous structures, including hollow multilamellar particles with either silica or alkylene-bridged organosilica walls such as the ethylene-bridged hollow silsesquioxane particles illustrated here.


  8. H.-J. Lehmler, W. Xie, G.D. Bothun, P.M. Bummer and B.L. Knutson, "Mixing of perfluorooctanesulfonic acid (PFOS) potassium salt with dipalmitoyl phosphatidylcholine (DPPC)," Colloids and Surfaces B: Biointerfaces 2006 51: 25-29. [Article]

  9. S.M. Vyas, J. Turánek, P. Knotigövá, A. Kašná, V. Kvardová, V. Koganti, S.E. Rankin, B.L. Knutson and H.-J. Lehmler, "Synthesis and biocompatibility evaluation of partially fluorinated pyridinium bromides," New Journal of Chemistry 2006 30: 944-951. [Article]


  10. R. Xing and S.E. Rankin, "Three Stage Multilayer Formation Kinetics during Adsorption of an Anionic Fluorinated Surfactant onto Germanium 1. Concentration Effect," The Journal of Physical Chemistry B 2006 110: 295-304. [Article]


  11. S.E. Rankin, B. Tan, R. Xing, S.M. Vyas, H.J. Lehmler and B.L. Knutson, "Tuning The Mesopore Structure In The Shells Of Hollow Silica And Organosilica Particles Formed By Fluorosurfactant Templating," in Proceedings of the XXII Interamerican Congress of Chemical Engineering, Buenos Aires, Argentina (2006) paper no. 733.

  12. B.L. Knutson, K. Ghosh, S. Bashadi, S.E. Rankin and H.J. Lehmler, "Supercritical Carbon Dioxide Processing of Mesoporous Silica Templated by Fluorinated Surfactants," in Proceedings of the XXII Interamerican Congress of Chemical Engineering, Buenos Aires, Argentina (2006) paper no. 809.

  13. B. Tan, S.M. Vyas, H.J. Lehmler, B.L. Knutson and S.E. Rankin, "Unusual Dependence of Particle Architecture on Surfactant Concentration in Partially Fluorinated Decylpyridinium Templated Silica," The Journal of Physical Chemistry B 2005 109: 23225-23232. [Article]


  14. B. Tan, H.J. Lehmler, S.M. Vyas, B.L. Knutson, and S.E. Rankin, "Fluorinated Surfactant-Templated Synthesis of Hollow Silica Particles with a Single Layer of Mesopores in their Shells," Advanced Materials 2005 17: 2368-2371. [Article]
    Hollow silica particles with mesoporous walls (see Figure) are synthesized from solution by co-assembly of silica with cationic fluorinated surfactants. The particles resemble vesicles, but retain wall patterns, indicating that they do not form from silica-coated bilayers but by the co-assembly of silica with micelles. Stronger shearing during synthesis causes the particles to aggregate into elongated particles with multiple hollow chambers.
  15. H.-J. Lehmler and P.M. Bummer, "Mixing Behavior of 10-(prefluorohexyl)- decanol and DPPC," Colloids and Surfaces B: Biointerfaces 2005 44: 74-81. [Article]

  16. B. Tan, W. Xu, A. Dozier, and S.E. Rankin, "Preparation of Highly Dispersed Iron Oxide Nanoparticles in Amine-Modified SBA-15," Materials Research Society Symposium Proceedings 2005 876E: R4.11.

  17. B. Tan and S.E. Rankin, "Dual Latex/Surfactant Templating of Hollow Spherical Silica Particles with Ordered Mesoporous Shells," Langmuir 2005 21: 8180-8187. [Article]


  18. G. Osei-Prempeh, H.J. Lehmler, B.L. Knutson, and S.E. Rankin, "Fluorinated Surfactant Templating of Vinyl-Functionalized Nanoporous Silica," Microporous and Mesoporous Materials 2005 85: 16-24. [Article]


  19. K. Ghosh, H.J. Lehmler, S.E. Rankin and B.L. Knutson, "Supercritical Carbon Dioxide Processing of Fluorinated Surfactant Templated Mesoporous Silica Thin Films," Langmuir 2005 21: 6145-6149. [Article]


  20. B. Tan, H.J. Lehmler, S.M. Vyas, B.L. Knutson and S.E. Rankin, "Large- and small-nanopore silica prepared with a short-chain cationic fluorinated surfactant," Nanotechnology 2005 16: S502-S507. [Article]


  21. V.R. Koganti and S.E. Rankin, "Synthesis of Surfactant-Templated Silica Films with Orthogonally Aligned Hexagonal Mesophase," The Journal of Physical Chemistry B 2005 109: 3279-3283. [Article]


  22. B. Tan, H.J. Lehmler, S.M. Vyas, B.L. Knutson and S.E. Rankin, "Controlling Nanopore Size and Shape by Fluorosurfactant Templating of Silica," Chemistry of Materials 2005 17: 916-925. [Article]


  23. H.-J. Lehmler and P.M. Bummer, "Interaction of a partially fluorinated long-chain nicotinate with dipalmitoylphosphatidylcholine", Journal of Lipid Research 2005 46: 2415-2422. [Article]

  24. S.E. Rankin, "Synthesis of Controlled-Porosity Ceramics Using Bicontinuous Liquid Crystals," in M.L. Lynch and P.T. Spicer, eds., Bicontinuous Liquid Crystals , Taylor and Francis: Boca Raton, FL, pp. 243-284 (2005). ISBN 1-57444-449-2. [Find a copy]


  25. B. Tan and S.E. Rankin "Interfacial Alignment Mechanism of Forming Spherical Silica with Radially Oriented Nanopores," The Journal of Physical Chemistry B 2004 108: 20122-20129. [Article]


  26. B. Tan, A. Dozier, H.J. Lehmler, B.L. Knutson and S.E. Rankin, "Elongated Silica Nanoparticles with a Mesh Phase Pore Structure by Fluorosurfactant Templating," Langmuir 2004 20: 6981-6984. [Article]


  27. S.E. Rankin, B. Tan, H.J. Lehmler, K.P. Hindman and B.L. Knutson, "Well-Ordered Mesoporous Silica Prepared by Cationic Fluorinated Surfactant Templating," Microporous and Mesoporous Materials 2004 73: 197-202. [Article]


  28. Y.W. Kho, D.C. Conrad and B.L. Knutson, "Phase Behavior and Spectroscopic Characterization of CO2-Expanded Fluorinated Microemulsions", Langmuir 2004, 20: 2590-2597. [Article]


  29. M. Arora, P.M. Bummer and H.-J. Lehmler, "Interaction of a partially fluorinated heptadecanoic acid with diacyl phosphatidylcholines of varying chain length", Langmuir 2003, 19: 8843-8851. [Article]

  30. S.E. Rankin, B. Tan, H.J. Lehmler and B.L. Knuston, "Fluorinated Surfactant Templating of Ordered Nanoporous Silica," Materials Research Society Symposium Proceedings 2003, 775: 47-52. Go to volume

  31. B. L. Knutson, Y. W. Kho, J. A. Berberich and K. J. Tatum, "Interfacial Activities of Biomacromolecules at Compressed Fluid Interfaces for the Design of Bioprocesses" , in Proceedings of Equifase 2002, Foz do Iguacu, Brazil (2002).

UK UIowa Last modification: Friday December 21, 2007
srankin@engr.uky.edu