Highly ordered mesoporous thiophene-silica powder was prepared using nonionic PEO-PLGA-PEO triblock copolymer templates and a 2,5-bis(triethoxysilyl)thiophene organosilica precursor under acidic conditions. The mesoporous thiophenesilica materials prepared with the EO16(L(29)G(7))EO16 template were observed to have a well-defined spherical-like external morphology with a diameter of 2-5 mu m, and a 2D hexagonal (p6mm) array of mesopores with a lattice constant of 9.55 nm. The thiophene-silica also displayed a large surface area of up to 1410 m(2) g(-1).