miRNA detection
method
Advantages Disadvantages
Northern blotting Detection without amplification, all forms of miRNAs can be detected. low-throughput, consuming time and large amount of RNA, hard to detect miRNAs with low copy numbers
qRT-PCR quick and easy to perform, relative low cost and small amounts of sample consummation amplification  needed, generation of non-specific amplification products
Microarray high-throughput amplification needed, non-specific hybridization, not accurate and need to be confirmed
Table 1: The advantages and disadvantages of common methods to detect and quantify miRNA