Rapid Amplification-Free Microarray-Based Ultrasensitive Detection of DNA.We present a multiplex microarray-based assay of DNA fragments, which allows the detection of less than 10000 DNA fragments in a sample of 100 μL (corresponding to ∼0.1 fM analyte concentration) in less than 5 min. 
microarray-based
Rapid Amplification-Free Microarray-Based Ultrasensitive Detection of DNA.We present a multiplex microarray-based assay of DNA fragments, which allows the detection of less than 10000 DNA fragments in a sample of 100 μL (corresponding to ∼0.1 fM analyte concentration) in less than 5 min. 
multiplex microarray-based
Second, it is electrophoretically concentrated from the sample onto the microarray. 
electrophoretically concentrated
Third, biotin labels are detected by scanning the microarray surface with streptavidin-coated magnetic beads. 
streptavidin-coated magnetic beads