Detection of Biomolecules and Glucose Concentration in Blood Using a Subwavelength Grating Optical Biosensor

Table 1

Comparison of label-free biosensor.

Reference	Sensitivity (nm/RIU)	LOD
Fu et al. [11]	133	–
Sahu et al. [14]	–	10^−2
Rahman et al. [20]	120	10^−4
Wangüemert-Pérez et al. [22]	100	10^−4
This work	206	10^−5