cellSens™ Tutorial: Ratio Analysis

Introduction

This tutorial provides a step-by-step guide on how to perform ratio analysis using cellSens software. This process allows you to measure the concentration of calcium ions over time in a fura sample. Understanding this analysis is crucial for researchers studying cellular processes involving calcium signaling.

Step 1: Setting Up Your Sample

• Prepare Your Sample: Ensure your fura sample is properly prepared and mounted on the microscope stage. This setup is essential for accurate measurements.
• Open cellSens Software: Launch the cellSens application on your computer.

Step 2: Configuring the Imaging Settings

• Select the Imaging Mode: Choose the appropriate imaging mode for your analysis. For calcium ion measurement, use the fluorescence mode.
• Adjust Exposure Settings: Set the exposure time and gain to optimize for the fluorescence signal from your sample.
• Set Up Time Lapse Imaging:
  • Navigate to the time-lapse settings.
  • Specify the duration and interval at which images will be captured.

Step 3: Calibration for Ratio Analysis

• Calibrate Your System: Before starting the analysis, calibrate the system to ensure accuracy.
  • Use a standard solution of known calcium concentration.
  • Follow the software prompts to complete the calibration process.

Step 4: Performing the Ratio Analysis

• Start the Time Lapse: Begin the imaging sequence by clicking on the start button in the software.
• Monitor the Capture: Watch the time-lapse images being collected. Ensure there are no disruptions during the imaging process.

Step 5: Analyzing the Data

• Open the Collected Data: Once imaging is complete, open the time-lapse data in cellSens.
• Select Regions of Interest (ROI):
  • Use the software tools to draw ROIs around the areas in the sample where you want to measure calcium concentration.
• Calculate Ratios:
  • Use the ratio analysis tool within the software to calculate the calcium ion concentrations.
  • Ensure that the calculation settings are properly configured to reflect the parameters used during imaging.

Step 6: Exporting and Reporting Results

• Export Data: Save your calculated data and images by navigating to the export options in cellSens.
• Generate Reports: Utilize the reporting features to create a comprehensive analysis report. Include graphs and charts for visual representation of your findings.

Conclusion

You have now successfully performed ratio analysis in cellSens to measure calcium ions in a fura sample. Key steps include proper setup, imaging configuration, calibration, and data analysis. For further learning, consider exploring more advanced features of cellSens or additional analysis methods.