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Related Concept Videos

iChip01:24

iChip

The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...

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Related Experiment Video

Updated: Jun 27, 2026

Chip-based Three-dimensional Cell Culture in Perfused Micro-bioreactors
12:39

Chip-based Three-dimensional Cell Culture in Perfused Micro-bioreactors

Published on: May 21, 2008

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A Chip-Based Miniature MRI Platform With Integrated Frontend Probe for In-Situ 3D Cell Culture Monitoring.

Qi Zhou, Shuhao Fan, Yingying Liu

    IEEE Transactions on Biomedical Circuits and Systems
    |November 3, 2025
    PubMed
    Summary

    Researchers developed a miniature magnetic resonance imaging (MRI) system for real-time imaging of 3D cell cultures in microwells. This novel platform enhances in vitro drug screening by visualizing biological dynamics with high resolution.

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    Last Updated: Jun 27, 2026

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    Area of Science:

    • Biomedical Engineering
    • Cell Biology
    • Medical Imaging

    Background:

    • Three-dimensional (3D) cell cultures better mimic in vitro tissue environments, improving drug screening.
    • Advanced monitoring is crucial for tracking biological dynamics in 3D cell cultures.
    • Existing methods may lack the resolution or real-time capabilities for small-volume 3D cultures.

    Purpose of the Study:

    • To present a miniature magnetic resonance imaging (MRI) platform for in situ imaging of 3D cell cultures in microliter microwells.
    • To enable real-time, on-site visualization of biological dynamics in 3D cell culture models.
    • To demonstrate the system's potential for advancing in vitro biological analysis and drug screening.

    Main Methods:

    • Development of a miniature MRI system utilizing an MRI application-specific integrated circuit (ASIC).
    • Design of a customized frontend probe with a miniaturized saddle coil for small-volume sensing.
    • Integration of a polydimethylsiloxane (PDMS)-molded sample well for microliter sample containment and detection.
    • Implementation of continuous, multi-perspective imaging capabilities.

    Main Results:

    • Achieved an MRI image resolution of 90×128×88 μm³.
    • Demonstrated continuous, multi-perspective (transverse and longitudinal) imaging of 3D cell cultures.
    • Successfully visualized spheroid slices within the microliter-volume microwell system.

    Conclusions:

    • The miniature MRI platform provides a valuable tool for real-time imaging of 3D cell cultures.
    • The system's high resolution and continuous monitoring capabilities support advanced in vitro studies.
    • This technology has significant potential for improving drug screening efficiency and biological analysis.