Slides were loaded into a BioTek slide in both a coverslip down Optimal exposure settings were determined for each objective using a positive control smear and then applied to all images for both positive and negative controls. Our group used microscope BioTek to do gram staining protocol with sample was CF594 (red color/cell wall) and Dapi (Blue color/ Nuclei) With + DAPI 377/477 1225100 Rev J - Blue + GFP 469/526 1225101 Rev K- green + TEXAS 586/647 125102 Rev J - Red I very like this new technique, and I think it is more exactly than normal gram staining technique I have used before. I hope I will do it few more time in future so I can use to do this new method.
1. Materials - Crystal violet (primary stain) - Gram's iodine (mordant, to fix crystal violet in the cell wall) - Ethanol or Acetone (decolorizer) - Safranin (secondary stain or counterstain) - DI Water - Microscope slide 2. Procedure - Place a small drop of bacterial sample on a slide. Heat fix the bacteria to the slide by passing it through the flame of a Bunsen burner three times. Applying too much heat or for too long can melt the bacteria cell walls, distorting their shape and leading to an inaccurate result. If too little heat is applied, the bacteria will wash off the slide during staining. - Use a dropper to apply the primary stain (crystal violet) to the slide and allow it to sit for 1 minute. Gently rinse the slide with water no longer than 5 seconds to remove excess stain. Rinsing too long can remove too much color, while not rinsing long enough may allow too much stain to remain on gram-negative cells. ...
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