Measuring contact angles on micro-structured samples such as printed circuit boards, small medical products, lithographic structures, assembly components, wires and single fibres poses a challenge, as the droplets dosed need to be extremely small. This challenge is met by the innovative picolitre dosing system PDDS from DataPhysics Instruments, developed to fit onto the contact angle meter OCA 200. The dosing system can reliably dose droplets of 30 picolitres in volume. Learn more on out website: https://www.dataphysics-instruments.com/products/oca/