2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/129231In this paper a quantum mechanical description of the assembly/disassembly process for microtubules is proposed. We introduce creation and annihilation operators that raise or lower the microtubule length by a tubulin layer. Following that, the Hamiltonian and corresponding equations of motion are derived that describe the dynamics of microtubules. These Heisenberg-type equations are then transformed to semi-classical equations using the method of coherent structures. The latter equations are very similar to the phenomenological equations that describe dynamic instability of microtubules in a tubulin solution.20 pages, no figures, to appear in Quantum BiosystemsCell BehaviorBiomoleculesNeurons and Cognitiontext