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Invitrogen™ Filmtracer™ LIVE/DEAD™ Biofilm Viability Kit DFS Item

Uses mixture of green fluorescent and red fluorescent stains

Manufacturer:  Invitrogen™ LSL10316

Catalog No. L10316

Includes: 2 ingredients



The FilmTracer LIVE/DEAD Biofilm Viability kit provides a two-color fluorescence assay of bacterial viability, based on membrane integrity, that has proven useful for a diverse array of bacterial genera including those growing in biofilm communities. The LIVE/DEAD Biofilm Viability kit utilizes mixtures of SYTO™ 9 green fluorescent nucleic acid stain and the red-fluorescent nucleic acid stain, propidium iodide. These stains differ both in their spectral characteristics and in their ability to penetrate healthy bacterial cells. When used alone, the SYTO 9 stain generally labels all bacteria in a population: those with intact membranes and those with damaged membranes. In contrast, propidium iodide penetrates only bacteria with damaged membranes, causing a reduction in the SYTO 9 stain fluorescence with both dyes are present. Thus, with an appropriate mixture of the SYTO 9 and propdium iodide stains, bacteria with intact cell membranes stain fluorescent green, whereas bacteria with damaged membranes stain fluorescent red.

Analysis of Bacteria, Bacterial Viability and Cytotoxicity Analysis, Cell Analysis, Microbiological Analysis

Order Info

Shipping Condition: Room temperature



Red, Green
480⁄500, 635
Cytoplasm & Cytosol
Other Label(s) or Dye(s)
2 ingredients, store in freezer (-5°C to -30°C); protect from light
Room Temperature
FilmTracer™, Molecular Probes®
SYTO® 9, propidium iodide
Confocal Microscope, Fluorescence Microscope, Flow Cytometer, Microplate Reader, Fluorescent Imager

For Research Use Only. Not for use in diagnostic procedures.