The present invention relates to a ceramic tip and a random access print head for the transfer of microfluidic quantities of fluid. The print head can randomly collect and deposit fluid samples to transfer the samples from a source plate to a target. The print head can also be programmed to create a...http://www.google.es/patents/US7736591?utm_source=gb-gplus-sharePatente US7736591 - Method and apparatus for liquid dispensing
