Collings, P.J. 2002. Liquid crystals: Nature's delicate phase of matter. 2^nd ed. Princeton, NJ: Princeton University Press.
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Collings, P.J. 2007. Liquid crystalline materials. In Concise encyclopedia of chemical technology 48-54. 5th ed. Hoboken, NJ: John Wiley & Sons.
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Collings, P.J. 1999. Liquid crystalline materials. In Kirk-Othmer concise encyclopedia of chemical technology. 4^th ed. New York: John Wiley & Sons.
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Collings, P.J. and M.R. Tomasik '07. 2008. Aggregation behavior and chromonic liquid crystal phase of a dye derived from naphthalenecarboxylic acid. Journal of Physical Chemistry B 112 (32): 9883-9889.
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Collings, P.J., D. Aronzon '05, E.P. Levy '04, A. Chanishvili, G. Chilaya, and G. Petriashvili. 2007. Trans-cis isomerization of an azoxybenzene liquid crystal. Liquid Crystals 34 (6): 707-718.
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Collings, P.J., G. Chilaya, A. Chanishvili, G. Petriashvili, R. Barberi, R. Bartolino, M.P. De Santo, and M.A. Matranga. 2006. Light control of cholesteric liquid crystals using azoxy-based host materials. Molecular Crystals and Liquid Crystals 453 (1): 123-140.
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Collings, P.J. 2006. Reflections of the chair of the committee on science and the arts. Journal of the Franklin Institute 343 (3): 211-213.
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Collings, P.J., V.R. Horowitz '05, L.A. Janowitz '07, A.L. Modic '04, P.A. Heiney. 2005. Aggregation behavior and chromonic liquid crystal properties of an anionic monoazo dye. Physical Review E 72 (4): 041710.
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Collings, P.J., J.J. Krich, and M.B. Romanowsky. 2005. Correlation length and chirality of the fluctuations in the isotropic phase of nematic and cholesteric liquid crystals. Physical Review E 71: 051712.
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Collings, P.J. 2005. Ferroelectric liquid crystals: The 2004 Benjamin Franklin Medal in Physics presented to Robert B. Meyer of Brandeis University. Journal of the Franklin Institute 342 (6): 599-608.
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Collings, P.J., A.M. Alsayed, M.F. Islam, J. Zhang, and A.G. Yodh. 2005. Premelting at defects within bulk colloidal crystals. Science 309 (5738): 1207-1210.
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Collings, P.J., A. Chanishvili, G. Chilaya, and G. Petriashvili. 2005. Trans-cis isomerization and the blue phases. Physical Review E 71 (5): 051705.
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Collings, P.J., B.R. Ratna, and R. Shashidhar. 2003. Order parameter measurements of dichroic dyes dissolved in smectic liquid crystals that tilt without layer contraction. Physical Review E 67 (2): 021705.
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Collings, P.J., D. Lacoste, and T.C. Lubensky. 2002. Effective index of refraction, optical rotation, and circular dichroism in isotropic chiral liquid crystals. Physical Review E 65: 031717.
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Collings, P.J., J.V. Selinger, and R. Shashidhar. 2001. Field -dependent tilt and birefringence of electroclinic liquid crystals: Theory and experiment. Physical Review E 64: 061705-1-061705-9.
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Collings, P.J., R.F. Pasternack, S. Ewen, A. Rao, A. S. Meyer, M.A. Freedman, S.L. Frey, M.C. Ranen, and J. de Paula. 2001. Interactions of copper(II) porphyrins with DNA. Inorganica Chimica Acta 317 (1-2): 59-71.
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Collings, P.J., E. Grelet, M. Li, and H. Nguyen. 2001. Optical activity measurements in the smectic blue phases. European Physical Journal E 6: 157-161.
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Collings, P.J., G.M. Barretto, D. Bennemann, D. Lötzsch, and G. Heppke. 2001. Short range order in the isotropic phase of antiferroelectric liquid crystals. Liquid Crystals 28 (4): 629-635.
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Collings, P.J., R.F. Pasternack, C. Fleming, S. Herring, J. de Paula, G. DeCastro, and E.J. Gibbs. 2000. Aggregation kinetics of extended porphyrin and cyanine dye assemblies. Biophysical Journal 79 (1): 550-560.
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Collings, P.J., B.J. Huff '99, and J.J. Krich '00. 2000. Helix inversion in the chiral nematic and isotropic phases of a liquid crystal. Physical Review E 61 (5): 5372-5378.
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Collings, P.J., R.F. Pasternack, E.J. Gibbs, T.E. Starr, O. Vafek, C. Yee, and L.A. Pomerance . 1999. Resonance light scattering and its application in determining the size, shape, and aggregation number for supramolecular assemblies of chromophores. Journal of Physical Chemistry B 103 (40): 8474-8481.
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Collings, P.J., C. Nuckolls, T.J. Katz, G. Katz, and L. Castellanos. 1999. Synthesis and aggregation of a conjugated helical molecule. Journal of the American Chemical Society 121 (1): 79-88.
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Collings, P.J., R.F. Pasternack, E.J. Gibbs, J.C. de Paula, L.C. Turzo, and A. Terracina. 1998. A Nonconventional approach to supramolecular formation dynamics. The Kinetics of assembly of DNA-bound porphyrins. Journal of the American Chemical Society 120 (24): 5873-5878.
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Collings, P.J., J. Parkash, J.H. Robblee, J. Agnew, E. Gibbs, R.F. Pasternack, and J.C. de Paula. 1998. Depolarized resonance light scattering by porphyrin and chlorophyll a aggregates. Biophysical Journal 74 (4): 2089-2099.
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Collings, P.J., M.A. Anisimov, and V.A. Agayan . 1998. Nature of the Blue-Phase-III–isotropic critical point: An analogy with the liquid-gas transition. Physical Review E 57 (1): 582-595.
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