Table 2.

Summary of hybrid fiber-optic sensors in this review.

Material	Mode	Analyst	LOD	Remark	Ref
Graphene/Au	SPR	ssDNA	1 pM	π-Stacking with graphene	[51]
Graphene/Au	SPR	BSA	NA	Significance of graphene	[6]
GO/Au	SPR	Human IgG	0.01 µg/mL	Anti-IgG/IgG interaction	[44]
Graphene/Au	SPR	Dopamine	10−13 M	π-Stacking with ss-DNA	[41]
MoO3−x nanoflake	SPR	BSA	1 pg/mL	Electrostatic interaction	[68]
β-CD/AuNPs	LSPR	Cholesterol	5 aM	Host-guest interaction	[109]
Chitosan/AuNPs	LSPR	Hg(II)	0.1 ppb	Chemisorbed	[115]
Aptamer/GNRs	LSPR	OTA	12.0 pM	Aptamer’s specific recognition	[116]