06 -Bacstain- Series

-Bacstain- AO solution

-<i>Bacstain</i>- AO solution

Bacterial Staining

  • Product code
    BS05  -Bacstain- AO solution
  • CAS No.
  • Chemical name
    3,6-Bis(dimethylamino)acridine hydrOchloride, solution
  • MW
Unit size Price Item Code
100 assays $119.00 BS05-10

100 assays
Quantity may be adjusted within the cart.

Required Equipment and Materials

10 μl, 1000 μl pipettes, incubator, Microscope (blue excitation filter and red emission filter) or flow cytometer (488 nm blue laser)

Fig. 1 Cell staining mechanism


Technical info

1. Allow AO solutiona) to stand at room temperature for 30 minutes to thaw. Solution should be protected from light.
2. Resuspend the organisms with PBS(-) or saline and adjust the number of cells to 106 cells/mL(flow cytometry) or 108-109 cells/mL(microscopy).
3. Add 3 μl of AO solution into the 1 mL of microbial cell suspension and vortex gently to mix. Formaldehyde-fixation can be carried out if necessary.
4. Incubate the microbial cells at room temperature for 5 minutes.
5. Analyze the stained-cells with a flow cytometer or a microscope. The maximum wavelengths of the dye with ssDNA are 420-460 nm for excitation and 630-650 nm for emission. The maximum wavelengths of the dye with dsDNA are 500 nm for excitation and 520 nm for emission.

a) Since AO may be carcinogenic, be careful when handling and disposing.

Staining Data

Fig. 2 B. subtils stained with AO.


Open References

1) J. E. Hobbie et al., Use of Nucleopore Filters for Counting Bacteria by Fluorescence Microscopy, Appl. Environ. Microbiol., 1977, 1225.
2) S. F. Nishino, Direct Acridine Orange Counting of Bacteria Preserved with Acidified Lugol Iodine, Appl. Environ. Microbiol., 1986, 602.

Handling and storage condition

Appearance: Yellow to orange liquid
Dye content: To pass test
Handling and storage condition
-20°C, Protect from light

Product Classification

Product Classification

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