  Novel microstamping tool for microarray printing is proposed. The tool is
capable to spot up to 127 droplets of different solutions in single touch. It
is easily compatible with commercially available microarray spotters. The tool
is based on multichannel funnel with polypropylene capillaries inserted into
its channels. Superior flexibility is achieved by ability to replace any
printing capillary of the tool. As a practical implementation, hydrogel-based
microarrays were stamped and successfully applied to identify the Mycobacterium
tuberculosis drug resistance.
