Plaque assay method:-Using agar 2 layers (André Gratia, Mark Adams) to appear the endless round of bacteria called plaque or pale tan (plaque) easily and more precisely out of the isolated phage, the lines of this round appears to be due to bacterial infection and invasive can actually kill bacteria sign of it.-Pour 1 environmental class a special agar concentration of 1.7% on dental implants, the environment has the effect of strengthening special agar and hold soft agar surface at the top. Then, I poured onto the surface of the agar, special-1 thin layer soft agar has signed on to host bacteria pump inside, coated are both off the disk implanted.-Use micropippet and cone type small head, taking a little rough translation can small drops, phage into the circle onto the surface of the agar, then incubated for 24 hours at room temperature. -After 24 hours, we will observe the tan markings appear on the surface of bacteria sign. Observe the shape, characteristics of the tan spots to conduct isolated phage lines. Currency taking shape and tan spots different characteristics to provide buffer environment SM (5, 8 g NaCl, 2 g MgSO 4.7 H2O, 50 ml Tris HCl (pH 7.4) and 5 ml of 2% 2% gelatin per quart), stored in the refrigerator 40 c to use in the future.
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