Table 1.

Different materials/techniques for the detection of breast cancer target miRNA.

Materials	Linearity	LOD	Method	Response Time	Target	Ref.
AuNPs/GQDs/GO	1.0 × 10−15~1.0 × 10−9 M	4 × 10−17 M	Electrochemistry	Ultrafast	miRNA-21	[19]
rGo	1.0 × 10−15~1.0 × 10−9 M	1.0 × 10−15 M	FET	Ultrafast	miRNA-21	[20]
MOS2	1.0 × 10−16~1.0 × 10−10 M	3 × 10−17 M	FET	Ultrafast	miRNA-155	[21]
M/MoS2/Thi/AuNPs/GCE	1.0 × 10−13~1.0 × 10−7 M	2.6 × 10−14 M	Electrochemistry	Ultrafast	miRNA-21	[22]
MOS2	1.0 × 10−15~1.0 × 10−10 M	3 × 10−16 M	Electrochemiluminescence	Fast	miRNA-210	[23]
Ag@4-MBA@Au SERS	1.0 × 10−15~1.0 × 10−8 M	3.98 × 10−16 M	Raman spectrum	Common	miRNA-21	[24]
DNA-copper	3.0 × 10−6~5.0 × 10−7 M	1.7 × 10−15 M	Fluorescence	Slow	miRNA-21	[25]
AuNPs/PGEs	2.0 × 10−10~3.8 × 10−7 M	1.0 × 10−10 M	Electrochemistry	Ultrafast	miRNA-21	[26]