Selective Laser Etching: creating three-dimensional microfluidic structures -- COMPAMED Trade Fair

Selective Laser Etching: creating three-dimensional microfluidic structures

Interview with Dr. Arnold Gillner and Sebastian Nippgen, Fraunhofer Institute for Laser Technology ILT

Stacked, in parallel lines and multi-branched - complex glass forms are beautiful to look at but also difficult to make because solid glass is hard and challenging to work with. When it is used in microfluidics, the size of the delicate shapes ranges in the micrometer range. Manufacturers subsequently need to use a laser to deliver a three-dimensional structural design into their workpieces.

01/02/2016

Sebastian Nippgen; ©Fraunhofer ILT, Aachen

Sebastian Nippgen; ©Fraunhofer ILT, Aachen

Dr. Arnold Gillner; ©Fraunhofer ILT, Aachen

Dr. Arnold Gillner; ©Fraunhofer ILT, Aachen

Photo: Microfluidics etched into glass

Delicate structures: using SLE, microfluidics like these can be made in glass parts. Firstly, a laser is used to alter the glass's structure; secondly, the altered structures are etched away; ©Fraunhofer ILT, Aachen/ Volker Lannert

Photo: Microfluidics etched into glass

Microfluidics in glass have a higher biological and chemical compatibility, are easier to clean than plastic ones and can be re-used in most cases; ©Fraunhofer ILT, Aachen/ Volker Lannert

Photo: Timo Roth; Copyright: B. Frommann

© B. Frommann