Dolomite is now offering glass and polymer microfluidic chips featuring integrated metal electrodes. According to Dolomite, this technology can be used to create a wide variety of geometrics such as interdigitated electrodes, heaters and temperature sensors with applications that include impedance detection and temperature control in microreactors and generation of electrical fields for dielectrophoresis.
A range of metals, between 50nm and 1µm thick, may be deposited onto the microfluidic chips including gold, copper, titanium and chrome. Metal layers can also be deposited on the inside surface of the micro-channels. This deposition can be used for optical flow cells where the metal layer acts as a mirror to reflect the light beam and in catalytic reaction chips where the metal surface can be used to promote chemical reactions.