Nanofibers of Non-Melt Processible Polymers



  • We discovered that pressure driven flow can be used to make nanofibers of polytetrafluoroethylene (Teflon) (24) that cannot be made by other means because of the non-melt processible nature of this polymer. Adhesion of proteins and cells (25) to these materials is now under investigation.


  • Selected Publications

    • (1) Badding, J. V. High-pressure synthesis, characterization, and tuning of solid-state materials. Annual Review of Materials Science 28, 631 (1998).
    • (2) Parker, L. J., Atou, T. & Badding, J. V. Transition element-like chemistry for potassium under pressure. Science 273, 95 (1996).
    • (3) Atou, T., Hasegawa, M., Parker, L. J. & Badding, J. V. Unusual Chemical Behavior for Potassium under Pressure: Potassium-Silver Compounds. Journal of the American Chemical Society 118, 12104 (1996).
    • (4) Badding, J.V., Lueking, A.L., Reversible High Pressure sp2-sp3 Transformations in Carbon, Phase Transitions, 80, 1033 (2007)
    • (5) Miller, E. D., Nesting, D. C. & Badding, J. V. Quenchable Transparent Phase of Carbon. Chemistry of Materials 9, 18 (1997).
    • (6) Jackson, B. R., Trout, C. C. & Badding, J. V. UV Raman Analysis of the C:H Network Formed by Compression of Benzene. Chemistry of Materials 15, 1820 (2003).
    • (7) Ravindran, T. R. & Badding, J. V. Ultraviolet Raman analysis of the formation of diamond from C60. Solid State Communications 121, 391 (2002).
    • (8) Badding, J. V. Solid-state carbon nitrides. Advanced Materials 9, 877 (1997).
    • (9) Ravindran, T. R., Jackson, B. R. & Badding, J. V. UV Raman Spectroscopy of Single-Walled Carbon Nanotubes. Chemistry of Materials 13, 4187 (2001).
    • (10) Polvani, D. A., Meng, J. F., Shekar, N. V. C., Sharp, J. & Badding, J. V. Large Improvement in Thermoelectric Properties in Pressure-Tuned p-Type Sb1.5Bi0.5Te3. Chemistry of Materials 13, 2068 (2001).
    • (11) Baril, N.F, He, R., Day, T.D., Sparks, J.R., Keshavarzi, B, , Krishnamurthi, M, Borhan, A, Gopalan, V, Peacock, A.C, Heal, N, . Sazio, P.J.A., and Badding, J. V. Confined High-Pressure Chemical Deposition of Hydrogenated Amorphous Silicon, Journal of the American Chemical Society, 134, 19-22 (2012).
    • (12) Sazio, P. J. A., Amezcua-Correa, A., Finlayson, C. E., Hayes, J. R., Scheidemantel, T. J., Baril, N. F., Jackson, B. R., Won, D.-J., Zhang, F., Margine, E. R., Gopalan, V., Crespi, V. H. & Badding, J. V. Microstructured Optical Fibers as High-Pressure Microfluidic Reactors. Science 311, 1583 (2006).
    • (13) Sparks, J.R., He, R., Healy, N., Krishnamurthi, M, Peacock, A.M., Sazio, P.J.A., Gopalan, V. Badding, J.V. Zinc Selenide Optical Fibers, Advanced Materials, 23, 1647 (2011).
    • (14) Healy, N., Lagonigro, L., Sparks, J.R., Boden, S., Sazio, P.J.A., Badding, J.V., and Peacock, A.C., Polycrystalline silicon optical fibers with atomically smooth surfaces, Optics Letters, 36, 12480-2482 (2011).
    • (15) He, R.,Sazio, P.J.A., Peacock, A.C, Heal, N., Sparks, J.R., Krishnamurthi, M, Gopalan, V, and Badding, J. V., Integration of GHz Bandwidth Semiconductor Devices inside Microstructured Optical Fibres, Nature Photonics, 6, 174-179 (2012).
    • (16) Calkins, J.A., Peacock, A.C, Sazio, P. J. A., Allara, D.L., and Badding, J. V. Spontaneous Waveguide Raman Spectroscopy of Self-Assembled Monolayers in Silica Micropores, Langmuir, 27, 630 (2011).
    • (17) Mehta, P., Krishanmurthi, M., Healy, N., Baril, N. F., Sparks, J., Sazio, P. J. A., Gopalan,V., Badding, J. V. and Peacock, A. C. Mid-infrared transmission properties of amorphous germanium optical fibers, Applied Physics Letters, 97, 071117 (2010).
    • (18) Vukovic, N, Healy, N, Horak, P., Sparks, J.R., Sazio, P.J.A., Badding, J.V., and, Peacock, A.C., Ultra-smooth microcylindrical resonators fabricated from silicon optical fibers, Applied Physics Letters, 99. 03117 (2011).
    • (19) Krishnamurthi, M, Sparks, J.R., He, R.,Temkyh, I., Baril, N.F., Liu, Z., Sazio, P.J.A., Badding, J. V., and Gopalan, V, An Array of Tapered Semiconductor Waveguides in a Fiber for Infrared Image Transfer and Magnification Optics Express, 20, 4168-4175 (2012).
    • (20) Mehta, P., Healy, N., Baril,N. F., Sazio, P. J. A., Badding, J. V. and Peacock, A. C. Nonlinear transmission properties of hydrogenated amorphous silicon core optical fibers, Optics Express, 18, 16826 (2010).
    • (21) Danisman, M.F, Calkins, J.A. Sazio, P.J.A., Allara, D.A., Badding, J.V. Organosilane Self Assembled Monolayer Growth from Supercritical Carbon Dioxide in Microstructured Optical Fiber Capillary Arrays, Langmuir, 24, 3636 (2008).
    • (22) Baril, N. F., Keshavarzi, B., Sparks, J. Krishnamurthi, M., Temnykh, I., Sazio, P. J. A., Peacock, A. C., Borhan, A., Gopalan, V., Badding, J. V. High Pressure Chemical Deposition for Void-Free Filling of Extreme Aspect Ratio Templates, Advanced Materials, 22, 4605 (2010).
    • (23) Jackson, B.R., Sazio, P.J., Badding,J.V., Single Crystal Silicon Wires Integrated into Microstructured Optical Fiber Templates, Advanced Materials, 20, 1135 (2008).
    • (24) Borkar, S., Gu, B., Dirmyer, M., Delicado, R., Sen, A., Jackson, B. R. & Badding, J. V. Polytetrafluoroethylene nano/microfibers by jet blowing. Polymer 47, 8337-8343 (2006).
    • (25) Ainslie, K. M., Bachelder, E. M., Borkar, S., Zahr, A. S., Sen, A., Badding, J. V. & Pishko, M. V.Albumin Adsorption and Cell Adhesion on Nanofibrous Polytetrafluoroethylene (nPTFE). Langmuir, 23, 747-754 (2007).
    • (26) Sparks, J.R., He, R., Healy, N., Chaudhuri, S., Peacock, A.C., Sazio, P.J.A., and Badding, J. V., Conformal Coating by High Pressure Chemical Deposition for Patterned Microwires of II-VI Semiconductors, Advanced Functional Materials 10.1002/adfm.201202224.
    • (27) He, R., Day, T.D., Krishnamurthi, M., Sparks, J.R., Sazio, P.J.A., Gopalan, V., and Badding, J. V., Silicon p-i-n Junction Fibers, Advanced Materials 10.1002/adma.201203879.
    • (28) Liu, X., Tang, Y., Xu, E., Fitzgibbons, T., Larsen, G., Gutierrez, H., Tseng, H.-H., Yu, M.-S., Tsao, C.-S., Badding, J., Crespi, V., Lueking, A., Evidence for Ambient-Temperature Reversible Catalytic Hydrogenation in Pt-doped Carbons, Nano Letters 10.1021/nl303673z.
    • (29) Mehta, P., Healy, N., Day, T.D., Badding, J. V., and Peacock, A. C. Ultrafast wavelength conversion via cross-phase modulation in hydrogenated amorphous silicon optical fibers, Optics Express 20, 26110-26116 (2012).
    • (30) Sparks, J.R., Sazio, P.J.A., Gopalan, V., Badding, J. V., Templated Chemically Deposited Semiconductor Optical Fiber Materials, Annual Review of Materials Research, 0.1146/annurev-matsci-073012-125958.