Frequently Asked Questions

  • Is Bacticount FDA approved? No. Bacticount is not approved by the FDA or any other agency to diagnose or treat any disease. It is a proof of concept for the scientific community.

  • Which phone models are compatible with Bacticount? Bacticount only works for Samsung Galaxy S7 smartphones due to the precision nature of the camera alignment and calibration for the particularities of the setup described in EBioMedicine.

  • How do I add a feature to the app? The Android Studio source code for the app is available for download on Github.

  • How can I add a pathogen to the assay? Please refer to the instructions on the “Add a pathogen” page for details.

  • Do I need a new standard curve for every test? No. The results of a standard curve are saved as a “.pasc” file, and can be selected at any time for analyzing a new sample. A new standard curve is required for each pathogen tested. We also recommend running new standard curves when changes to the device or reagents occurs.

  • Can I export LAMP traces to a computer? Yes! Plug your smartphone into your computer, open the “pictures” folder, and then the folder with the run’s name. Copy the data file to your computer (standard curves are “.pasc” files, and sample data are “.parr” files). Finally, rename the file to end in “.csv” and open in any spreadsheet software. The first 36 columns are fluorescence intensities for wells A1 to F6, and the far-right column is the elapsed time (in seconds).

  • Who else helped with this project? A huge thank you to Michael Carilli, Ph.D, Steve Hunt, Ph.D, and Sarah Shekher for helping refine and debug the Bacticount application! Couldn’t have done it without you.

  • Does Bacticount include any open source components? Yes! OpenCV, aFileDialog, and OpenCSV were all instrumental in creating this application.