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A sol-gel-based reverse-phase microarray was developed with improved sensitivity for prostatespecific antigen (PSA) from serum. The pore-sizecontrolled 3D sol-gel matrix was created with a large surface area to capture target molecules densely. Using the optically active sol-gel nanocomposites, human female serum was spiked with PSA and assessed using the reverse-phase protein microarray. The reve
