Table 2. Functionalized SWCNT Biosensor for the Detection and/or Conjugation with Biomolecules.

s. no.	materials used for surface modification	synthesis method	application	ref
1	PEG	RF-CCVD method	drug delivery	(56)
2	PEG		cancer drug delivery and imaging tool	(57)
3	human serum protein		biological application and binds with siRNA	(60)
4	CTAB		binding with siRNA oligonucleotides	(58)
5	HMDA and PDDA		delivery of siRNA	(59)
6	PL–PEG		delivery of siRNA and gene silencing	(61)
7	–NH3+		gene delivery and delivery of plasmid DNA	(62)
8	–Lys-NH3+		gene delivery and delivery of plasmid DNA	(62)
9	biotin		tumor-targeted drug delivery	(63)
10	DNA	reflux process followed by addition of DNA	determination of daunorubicin anti-cancer drug	(64)
11	mesoporous silicon	facile stain-etching and sonothermal process	detection of non-enzymatic glucose	(65)