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Related Concept Videos

CRISPR01:59

CRISPR

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Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
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Updated: Jul 23, 2025

Reduced-gravity Environment Hardware Demonstrations of a Prototype Miniaturized Flow Cytometer and Companion Microfluidic Mixing Technology
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CRISPR-based genetic diagnostics in microgravity.

Dan Mark Alon1, Karin Mittelman2, Eytan Stibbe3

  • 1The Shmunis School of Biomedicine and Cancer Research, Faculty of Life Science, Tel Aviv University, Tel Aviv, 6997801, Israel; Department of Entomology, Agricultural Research Organization - the Volcani Center, 68 HaMaccabim Rd, Rishon LeZion, 7505101, Israel.

Biosensors & Bioelectronics
|July 17, 2023
PubMed
Summary
This summary is machine-generated.

CRISPR-based genetic diagnostics, using recombinase polymerase amplification (RPA) and Cas12a, show high sensitivity for astronaut health monitoring in space. This technology is stable for long-term use during space missions.

Keywords:
AmplificationCas12DNADetectionSpace

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Area of Science:

  • Space biology
  • Molecular diagnostics
  • Biotechnology

Background:

  • Astronaut health monitoring in space presents significant challenges for rapid assessment.
  • Sensitive genetic diagnostics are vital for crew and environmental health surveillance.
  • CRISPR-Cas12a systems offer promise for rapid, on-site genomic detection.

Purpose of the Study:

  • To evaluate the efficacy and sensitivity of CRISPR-Cas12a combined with recombinase polymerase amplification (RPA) for genetic diagnostics in microgravity.
  • To assess the performance of amplified and unamplified target DNA detection.
  • To determine the stability of these diagnostic reactions under long-term storage conditions.

Main Methods:

  • Utilized recombinase polymerase amplification (RPA) coupled with CRISPR-Cas12a collateral cleavage activity.
  • Conducted genetic diagnostics experiments onboard the International Space Station (ISS).
  • Investigated detection sensitivity across a range of target DNA concentrations, including attomolar levels.

Main Results:

  • Achieved highly sensitive detection of target DNA, down to attomolar concentrations, by coupling RPA with Cas12a.
  • Demonstrated the stability of the diagnostic reactions after prolonged storage.
  • Successfully identified genomic targets in a microgravity environment.

Conclusions:

  • CRISPR-based detection, enhanced by RPA, is a powerful and sensitive tool for on-site genetic diagnostics in microgravity.
  • This technology holds significant potential for improving astronaut health and well-being during long-duration space missions.
  • The system's stability supports its application in future long-term space exploration endeavors.