Stretched photonic suspension array for label-free high-throughput assay

Abstract

A stretched inverse opal film with an interpenetrating porous structure is proposed to construct a suspension array for label-free high-throughput bioassay with a wide detection range. A large capacity of code number was realized by the combination of stretching and film stacking. As the reflection peak of stretched inverse opal, which was utilized for carrier encoding, shifted when biomolecules were absorbed on its pore surface, carrier identification and biomolecule detection are as simple as a one-step measurement of light reflection.