Table 1.

Relative content and chemical states of carbon and nitrogen on silane surfaces. Surface types include clean silicon (Si), PEGSi, ablated PEGSi monolayer (ablPEGSi), DETA, PEGSi reacted onto DETA monolayer (DETA-PEGSi), DETA reacted onto an ablated PEGSi monolayer (ablPEGSi-DETA), and DETA reacted onto an unablated PEGSi monolayer (PEGSi-DETA).

	Si(%)	PEGSi(%)	ablPEGSi(%)	DETA-PEGSi(%)	ablPEGSi-DETA(%)	PEGSi-DETA(%)	DETA(%)
N 1s	$0.0\pm 0.0$	$0.0\pm 0.0$	$0.0\pm 0.0$	$2.2\pm 0.6$	$7.4\pm 0.7$	$5.9\pm 0.1$	$7.8\pm 0.8$
C–O/C–N	$0.0\pm 0.0$	$18.3\pm 1.3$	$1.6\pm 0.2$	$16.8\pm 0.8$	$14.6\pm 1.5$	$18.0\pm 2.8$	$12.1\pm 0.3$
C–C	$5.1\pm 0.5$	$2.9\pm 0.3$	$3.9\pm 0.7$	$3.6\pm 0.8$	$6.0\pm 2.1$	$10.4\pm 2.6$	$9.4\pm 0.8$
COO	$0.0\pm 0.0$	$0.0\pm 0.0$	$0.3\pm 0.1$	$0.9\pm 0.9$	$2.8\pm 0.3$	$2.1\pm 0.2$	$0.0\pm 0.0$