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ACS Omega. 2019 May 23;4(5):9144-9149. doi: 10.1021/acsomega.9b00137. eCollection 2019 May 31.

Tubulin Polarizability in Aqueous Suspensions.

Author information

CREOL, The College of Optics and Photonics, University of Central Florida, Orlando 32816, United States.
Department of Physics and Department of Oncology, University of Alberta, Edmonton T6G 2R3, Canada.
Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin 10129, Italy.


We report accurate optical measurements of tubulin polarizability in aqueous suspensions. We determined the dependence of polarizability on tubulin concentration and on the suspension's pH, providing benchmark numbers for quantifying the optical response of this protein in various artificial and cellular environments. We compare our measurement data with a few estimates found in the previous literature and also with our simplified model estimations.

Conflict of interest statement

The authors declare no competing financial interest.

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