2D Carboxylate Sensor Chips Azide-modified Sensor Chips Chloroalkane-modified Sensor Chips (HO) HCX Sensor Chips HLC Sensor Chips LP and LD Sensor Chips Neutravidin-modified Sensor Chips NTA-modified Sensor Chips Polycarboxylate Hydrogel Sensor Chips Protein A-modified Sensor Chips Protein AG-modified Sensor Chips RG Sensor Chips SpyCatcher-modified Sensor Chips StrepTactin XT-modified Sensor Chips Streptavidin-modified Sensor Chips ZC Sensor Chips