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Updated: Sep 11, 2025

Live Cell Fluorescence Microscopy to Observe Essential Processes During Microbial Cell Growth
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Fluorescence time-lapse microscopy with automatic cell detection.

Ulderico Wanderlingh1,2, Rosa Musotto3, Angela D'Ascola4

  • 1Department of Mathematics and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, 98166 Messina, Italy.

The Review of Scientific Instruments
|August 13, 2025
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Summary
This summary is machine-generated.

This study introduces a low-cost Raspberry Pi fluorescence microscopy system for observing cellular dynamics. It uses novel software for automatic analysis of cellular processes and calcium signals.

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Area of Science:

  • Biophysics
  • Cell Biology
  • Microscopy

Background:

  • Fluorescence microscopy is crucial for biological, medical, and physical sciences.
  • Observing fast and slow cellular processes requires advanced imaging systems.

Purpose of the Study:

  • To develop an affordable Raspberry Pi-based epifluorescence microscopy system.
  • To enable high-fidelity image acquisition and automated analysis of cellular dynamics.
  • To facilitate real-time observation of cellular biophysical research.

Main Methods:

  • Utilized a Raspberry Pi with Picamera2 API for RAW image acquisition.
  • Implemented a novel Numpy-based algorithm for automatic peak identification in fluorescence images.
  • Applied the system to extract temporal calcium signals in cultured astrocytes.

Main Results:

  • Achieved high-fidelity image acquisition for cellular processes.
  • Successfully detected regions of interest in cellular cultures automatically.
  • Enabled precise extraction of temporal calcium signal evolution in astrocytes.

Conclusions:

  • The developed system provides an affordable yet powerful solution for cellular biophysical research.
  • It enhances accessibility to advanced imaging and analysis capabilities for laboratories.
  • Offers robust real-time observation of cellular dynamics and molecular interactions.