== Immobilization of stDNA (a, b) and ctDNA (c, d) on clustered polyacrylamide-coated glutaraldehyde-activated silica pedestals.aandcshow images of the DNA-coated pedestals in a bright field mode.banddshow fluorescent images of the same pedestals with covalently immobilized stDNA stained by Sibr Green II (b) and ctDNA with acridine orange (d). that implies Continue Reading