Author/Authors :
M. Umnov، نويسنده , , O. A. Palusinski، نويسنده , , P. A. Deymier، نويسنده , ,
R. Guzman، نويسنده , , J. Hoying، نويسنده , , H. Barnaby، نويسنده , ,
Y. Yang، نويسنده , , S. Raghavan، نويسنده ,
Abstract :
Microtubules (MTs) are self-assembled proteinaceous
filaments with nanometer scale diameters
and micrometer scale lengths. Through conductivity
measurements in microchannels we shed some light
on electrical properties of microtubules. Measuring
electrical resistance we were able to detect the dynamic
disassembly of MTs and determine an upper limit for
the electrical conductivity of MT. The measurements
yielded the value of 90 W–1 m–1 as the upper limit for
the conductivity of MTs, which is in the order of
conductivity observed in inorganic intrinsic semiconductors.
