| abstract |
Biomolecules are attached to supporting surfaces through the utilization of long chain chemical spacers, the spacers separating the surfaces and biomolecule groups by extended spacer lengths of at least 25 Angstroms. The spacers desirably are heterobifunctional and include an aryl photoreactive group, the spacers comprising chemical chains containing a plurality of comparatively hydrophilic units, preferably ethoxy units, and the support surface is commonly comparatively hydrophobic. |