David Myszka and coworkers have published several annual reviews  about SPR and biosensor technologies in general.
Finding regeneration conditions
Andersson et al  described an efficient procedure for finding better chip regeneration conditions. The procedure samples diverse chemical space of reagents affecting intermolecular interactions and allows to formulate regeneration mixtures performing better then included ingridients alone.
Small molecule interactions
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J. Chem. Soc., Chem. Commun., 1990, 1526 - 1528, DOI: 10.1039/C39900001526 A novel hydrogel matrix on gold surfaces in surface plasmon resonance sensors for fast and efficient covalent immobilization of ligands (article on preparation of CM chip surface)