In situ synthesis of Au nanoparticles in 3D circular microchannels in PDMS using a simple and reliable molding method

The current work deals with simple, one step and direct approach of fabrication of circular micro-channels using wires of micro dimensions. To modify the inert surface of PDMS, for immobilization of biomolecules and its further applications, in situ synthesis of gold nanoparticles was carried out.