2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/85949We used computer simulation to calculate the electric dipole moments of the alpha and beta tubulin monomers and dimer and found those to be |palpha|=552D, |pbeta|=1193D and |palpha-beta|=1740D respectively. Independent surface plasmon resonance (SPR) and refractometry measurements of the high-frequency dielectric constant and polarizability strongly corroborated our previous SPR-derived results giving delta-n/delta-c ~1.800x10^-3 ml/mg. The refractive index of tubulin was measured to be n_tub ~2.90 and the high frequency tubulin dielectric constant kappa_tub ~8.41 while the high-frequency polarizability was found to be alpha_tub ~ 2.1x10^-33 C m^2/V. Methods for the experimental determination of the low-frequency p are explored as well as ways to test the often conjectured quantum coherence and entanglement properties of tubulin. Biobits, bioqubits and other applications to bioelectronics are discussed.A.M. is corresponding author: mershin@physics.tamu.edu 32 double-spaced pages, 4 figures. Keywords: tubulin, electric dipole moment, biobit, bioqubit, quantum, entanglement, surface plasmon resonance, refractometry, refractive index, quantum brainBiological PhysicsMedical Physicstext