A Selection and Analysis Tool for Fluorescence Recovery after Photobleaching (FRAP) Region of Interest (ROI)

Fluorescence recovery after photobleaching (FRAP) can be used to quantify the mobility of molecules in live cells. In a typical FRAP experiment, a portion of a cell expressing a fluorescently tagged molecule of interest is photobleached and the recovery of the photobleached region is monitored as a function of time. Briefly, faster recoveries correspond to more mobile molecules. In this Demonstration a movie of a FRAP experiment is analyzed. You can scroll through the movie in the upper display and choose the size and position of a circular region of interest (ROI). The normalized intensity of the fluorescence in the ROI is displayed as a function of image number in a plot below. A vertical red line designates the current image number of the movie in the upper display.



  • [Snapshot]
  • [Snapshot]
  • [Snapshot]


For details on FRAP, see the Wikipedia article "Fluorescence Recovery after Photobleaching".
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.

Mathematica »
The #1 tool for creating Demonstrations
and anything technical.
Wolfram|Alpha »
Explore anything with the first
computational knowledge engine.
MathWorld »
The web's most extensive
mathematics resource.
Course Assistant Apps »
An app for every course—
right in the palm of your hand.
Wolfram Blog »
Read our views on math,
science, and technology.
Computable Document Format »
The format that makes Demonstrations
(and any information) easy to share and
interact with.
STEM Initiative »
Programs & resources for
educators, schools & students.
Computerbasedmath.org »
Join the initiative for modernizing
math education.
Step-by-Step Solutions »
Walk through homework problems one step at a time, with hints to help along the way.
Wolfram Problem Generator »
Unlimited random practice problems and answers with built-in step-by-step solutions. Practice online or make a printable study sheet.
Wolfram Language »
Knowledge-based programming for everyone.
Powered by Wolfram Mathematica © 2018 Wolfram Demonstrations Project & Contributors  |  Terms of Use  |  Privacy Policy  |  RSS Give us your feedback
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to Mathematica Player 7EX
I already have Mathematica Player or Mathematica 7+