Gel-pad microarrays templated by patterned porous silicon for dual-mode detection of proteinsElectronic supplementary information (ESI) available: Further experimental details. See DOI: 10.1039/b821265a.

A proof-of-concept study demonstrated the feasibility of a novel gel-pad microarray on porous silicon chips, by initiation of an atom transfer radical propagation (ATRP) polymerisation of (polyethylene glycol) methacrylate (PEGMA) with surface Si–H species, stepwise chemical conversions of the gel membrane to an NTA-Ni2+/histidine-tagged protein system, and matrix-assisted laser desorption/ionisation mass spectroscopy (MALDI MS) and fluorescence detections. [ABSTRACT FROM AUTHOR]