BIOCHIP SUBSTRATE

摘要

A biochip substrate suitable for use in the stamp method, which in biochip use, is free from any concentration distribution within spot, also being free from defects such as blur and which enables immobilization of detected DNA at high density and in high precision so as to attain a high S/N ratio in each spot. In particular, a biochip substrate characterized in that a porous layer containing inorganic particles such as silica particles and alumina particles, the porous layer preferably having an average pore radius of 1 to 100 nm and pore volume of 0.1 to 5 cm<3>/g, is superimposed on a substrate.