BIOLOGICAL POLYMER WITH DIFFERENTLY CHARGED PORTIONS

摘要

A biological polymer assembly with a biological polymer that contains at least 90 percent of tubulin and a positively charged segment. The positively charged segment has a molecular weight of at least about 5,000 Daltons, a bulk electrical conductivity of at least about 10^-7 ohm^-1 meter^-1 Siemens, a concentration of elemental charges per cubic centimeter of from about 10¹² to about 10²⁵, and a length of at least about 2 nanometer.