Polarized light scattering from sickle hemoglobin polymers

Kim-Shapiro, Daniel B.; Hull, Patricia G.
August 1997
Journal of Chemical Physics;8/1/1997, Vol. 107 Issue 5, p1625
Academic Journal
The Mueller scattering matrix for sickle cell hemoglobin polymers is calculated using the coupled-dipole approximation method. The complex polarizability of the fiber is calculated using the absorption spectrum of hemoglobin to obtain the imaginary part and a Kramer-Kronig transform to obtain the real part. An anisotropy in the polarizability is calculated based on previous work using linear dichroism. The results of the polarized light scattering calculations are compared to previous measurements of total intensity light scattering and circular intensity differential scattering (CIDS) made on sickle red blood cells. Calculations of CIDS are found to be very sensitive to structural and optical parameters but reasonable agreement between experimental measurements and calculations are obtained. Further measurements and calculations should provide new structural information concerning the sickle fiber.


Related Articles

  • A method for calculating the light extinction coefficients of a polymer layer with small nematic liquid-crystal droplets. Loiko, V.; Maksimenko, P.; Konkolovich, A. // Optics & Spectroscopy;Nov2008, Vol. 105 Issue 5, p791 

    A method is proposed for analyzing radiation extinction coefficients of polymer films containing small nematic liquid-crystal droplets with cylindrical symmetry. This method is based on the Rayleigh-Gans approximation and the effective scattering matrix. The orientational ordering of both...

  • On kaonic hydrogen. Phenomenological quantum field theoretic model revisited. Ivanov, A. N.; Cargnelli, M.; Faber, M.; Fuhrmann, H.; Ivanova, V. A.; Marton, J.; Troitskaya, N. I.; Zmeskal, J. // European Physical Journal A -- Hadrons & Nuclei;Sep2005, Vol. 25 Issue 3, p329 

    We argue that due to isospin and U-spin invariance of strong low-energy interactions the S-wave scattering lengths a00 and a10 of ¯ N scattering with isospin I = 0 and I = 1 satisfy the low-energy theorem a00 +3 a10 = 0 valid to leading order in chiral expansion. In the model of strong...

  • Relation Between a Pole of the Scattering Matrix and the Transmission and Reflection Coefficients in Scattering in a Quantum Waveguide. Arsen'ev, A. A. // Theoretical & Mathematical Physics;Aug2004, Vol. 140 Issue 2, p1151 

    We use an example to illustrate how a pole with a small imaginary part can affect the transmission and reflection coefficients in the scattering in a quantum waveguide.

  • Dirac Particle in an Aharonov-Bohm Potential: The Structure of the First Order S-matrix. Shikakhwa, M. S. // International Journal of Theoretical Physics;Feb2007, Vol. 46 Issue 2, p405 

    The structure of the interaction Hamiltonian in the first order S-matrix element of a Dirac particle in an Aharonov-Bohm (AB) field is analyzed and shown to have interesting interesting algebraic properties. It is demonstrated that as a consequence of these properties, this interaction...

  • SIZE EFFECTS ON THE SCATTERING MATRICES OF CLAY PARTICLES: AN EXPERIMENTAL STUDY. Muñoz, O.; Moreno, F.; Dabrowska, D. D.; Volten, H.; Hovenier, J. W. // AAPP | Physical, Mathematical & Natural Sciences / Atti della Ac;Dec2011 Supplement, Vol. 89 Issue S1, p067-1 

    We present experimental scattering matrix elements as functions of the scattering angle of two sets of three samples of clays (yellow, green, and white). The measurements were performed in Amsterdam at a wavelength of 633 nm, and at the IAA cosmic dust laboratory in Granada at 647 nm. We study...

  • Unstable Particles, Gauge Invariance and the Δ++ Resonance Parameters. Castro, Gabriel López; Mariano, Alejandro // Foundations of Physics;May2003, Vol. 33 Issue 5, p719 

    The elastic and radiative π+p scattering are studied in the framework of an effective Lagrangian model for the Δ++ resonance and its interactions. The finite width effects of this spin-3/2 resonance are introduced in the scattering amplitudes through a complex mass scheme to respect...

  • Origin of three-body resonances. Garrido, E.; Fedorov, D. V.; Jensen, A. S. // European Physical Journal A -- Hadrons & Nuclei;Sep2005, Vol. 25 Issue 3, p365 

    We expose the relation between the properties of the three-body continuum states and their two-body subsystems. These properties refer to their bound and virtual states and resonances, all defined as poles of the S-matrix. For one infinitely heavy core and two non-interacting light particles,...

  • Bootstrap Equations in Effective Theories. Vereshagin, A. V.; Vereshagin, V. V.; Semenov-Tian-Shansky, K. M. // Journal of Mathematical Sciences;Jan2005, Vol. 125 Issue 2, p144 

    In this paper, we consider general properties of effective field theories. We note that the freedom of fixing renormalization conditions in the effective field theory is not as large as it seems. Consideration of the minimal set of correctness requirements of the perturbative scheme based on the...

  • Energy and intensity distributions of 279 keV multiply scattered photons in bronze -- an inverse response matrix approach. SINGH, MANPREET; SINGH, BHAJAN; SANDHU, B. S. // Pramana: Journal of Physics;Jan2008, Vol. 70 Issue 1, p61 

    An inverse response matrix converts the observed pulse-height distribution of a NaI(Tl) scintillation detector to a true photon spectrum. This also results in extraction of intensity and energy distributions of multiply scattered events originating from interactions of 279 keV photons with thick...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics