Table 1 Comparison between different biosensors reported for CEA and CYFRA 21-1 detection and the ones developed in this research.

From: Simple diagnosis of cancer by detecting CEA and CYFRA 21-1 in saliva using electronic sensors

Sl. no.

Type of sensor

Sensing material

Target Bio marker

Lowest measured concentration

References

1

ELISA

CEA, CYFRA-21

~ng/mL

19

2

Electrochemical immunosensor

Cubic CeO2 implanted reduced graphene oxide based biosensor

CYFRA 21-1

0.625 pg /mL

43

3

Electrochemical immunosensor

Polyhydroquinone-graphene composite

CYFRA-21

2.3 pg/mL

44

4

Electrochemical immunosensor

Amine-functionalized MoO3@RGO Nanohybrid-Based Biosensor

CEA

0.001 ng/mL

45

5

Electrochemical immunosensor

A sandwich-type electrochemical immunosensor using polythionine/AuNPs nanocomposites

CEA

0.3 ng/mL

46

6

This work

RGO/MEL/antibody/BSA/antigen

CEA, CYFRA-21

1 pg/mLfor both the antigens