Gold is used in biosensors and medical components, where it cannot be substituted. OTech Aurum gold ink has superior conductivity and the device performance can be achieved by using up to 60% less material at the fraction of the production price. The ink is compatible with aerosol and inkjet printing processes and can be used in many different applications ranging from gold-coated body electrodes for EEG/ECG monitoring to lab-on-a-chip to roll-to-roll printed electrodes for skin patches.