Glass, glass compositions, methods of preparing the glass compositions, microfluidic devices that include the glass composition, and methods of fabricating microfluidic devices that include the glass composition are disclosed. The borosilicate glass composition includes silicon dioxide (SiO2) in a range...http://www.google.se/patents/US7341966?utm_source=gb-gplus-sharePatent US7341966 - Borosilicate glass compositions and uses thereof