Table 1.

Typical parameters of graphene chips before and after functionalization.

Graphene Chip ID		R and SU before Functionalization		R and SU after Functionalization
		R, Ω	SU, V2/Hz	R, Ω	SU, V2/Hz
Group 1	EG319-3	6582	2.00 × 10−13	1201	7.94 × 10−13
	EG319-4	5718	6.31 × 10−14	1178	1.01 × 10−12
	EG335-3	5670	6.31 × 10−12	1676	2.51 × 10−11
	EG335-5	3465	5.01 × 10−13	1650	1.26 × 10−12
	EG360-1	1691	3.62 × 10−13	1233	1.58 × 10−12
	EG391-1	2672	2.44 × 10−12	2286	8.09 × 10−12
	EG394-1	2134	6.31 × 10−11	1858	7.94 × 10−11
	EG395-1	3251	1.58 × 10−13	2566	5.01 × 10−12
Group 2	EG392-1	1271	2.04 × 10−11	2646	5.01 × 10−11
	EG277-1	1445	6.31 × 10−10	1713	6.31 × 10−10