Table 3.

The physical characteristics of the GNP colloidal and the MALDI-TOF analysis of m/z value in each of the samples labeled A and B

Incubation mixture		Total particle surface area/mL (nm2/mL)	Peak m/z value (z=2)	Shifted m/z value compared to blank solution (z=2)	Number of D-ribose adducts
A	2 nm	18.8×1014	37,170	4080	54
	5 nm	39.3×1014	36,980	3890	52
	20 nm	8.79×1014	37,790	4700	63
B	2 nm	8.79×1014	37,770	4680	62
	5 nm	8.79×1014	37,710	4620	62
	20 nm	8.79×1014	37,790	4700	63
Control solution		Not applicable	39,290	6200	83
BSA blank		Not applicable	33,090	0	0

Abbreviations: GNP, gold nanoparticles; MALDI-TOF, matrix-assisted laser desorption/ionization time-of-flight; BSA, bovine serum albumin.