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Open-Source Miniature Fluorimeter to Monitor Real-Time Isothermal Nucleic Acid Amplification Reactions in Resource-Limited Settings
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Open-source and low-cost miniature microscope for on-site fluorescence detection.

Michio Kawai1, Haruka Oda1, Hisatoshi Mimura2

  • 1Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, Tokyo, Japan.

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|July 15, 2024
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Summary
This summary is machine-generated.

Researchers developed a low-cost, open-source miniature fluorescence microscope using Raspberry Pi. This compact device enables accessible on-site detection of fluorescent biological systems for researchers without engineering expertise.

Keywords:
Biohybrid sensorFluorescence microscopeOpen-sourceRaspberry Pi

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Area of Science:

  • Biophotonics
  • Microscopy
  • Open-source hardware

Background:

  • Developing compact, affordable fluorescence microscopes is challenging for on-site biological detection.
  • Biologists often lack engineering expertise for custom instrument design.

Purpose of the Study:

  • To present an open-source miniature fluorescence microscope built with Raspberry Pi.
  • To provide a cost-effective and customizable solution for on-site fluorescence detection.

Main Methods:

  • Utilized Raspberry Pi with a 12.3-megapixel HQ Camera and wide-angle lens.
  • Integrated software-controllable fluorescence LEDs and wireless LAN.
  • Designed a compact, light-blocking case (19.2 × 13.6 × 8.2 cm³).

Main Results:

  • Achieved a cost under $500.
  • Enabled high-resolution imaging with a 21 × 15 mm² field of view.
  • Demonstrated a versatile platform for biohybrid sensor development.

Conclusions:

  • The open-source Raspberry Pi fluorescence microscope is a powerful, affordable tool for on-site detection.
  • It simplifies mechanical design challenges for biologists.
  • It expands opportunities for fluorescence-based diagnostics and research.