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Related Experiment Video

Updated: May 26, 2026

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Lab on a chip phased-array MR multi-platform analysis system.

Oliver G Gruschke1, Nicoleta Baxan, Lars Clad

  • 1University of Freiburg, Department of Microsystems Engineering (IMTEK), Lab of Simulation, Georges-Köhler-Allee 103, 79110 Freiburg, Germany. gruschke@imtek.de

Lab on a Chip
|December 27, 2011
PubMed
Summary
This summary is machine-generated.

We developed a novel lab on a chip (LOC) platform for high-resolution magnetic resonance (MR) investigations. This technology enables detailed imaging and spectroscopy of small biological samples with unprecedented speed and clarity.

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Area of Science:

  • Biophysics
  • Magnetic Resonance Imaging
  • Microfluidics

Background:

  • Magnetic resonance (MR) techniques are crucial for analyzing biological samples.
  • Investigating sub-millimetre samples requires high-resolution detection methods.
  • Existing MR detectors often compromise between resolution and field of view.

Purpose of the Study:

  • To present a lab on a chip (LOC) compatible modular platform for MR-based investigation of sub-millimetre samples.
  • To combine the benefits of microcoils and surface coils for enhanced MR detection.
  • To demonstrate the platform's capability for high-resolution magnetic resonance imaging (MRI) and NMR spectroscopy.

Main Methods:

  • Development of a phased array of microcoils (PAMs) on a LOC platform.
  • Integration of microcoil and macroscopic surface coil advantages for MR detection.
  • Utilisation of automatic wire bonding and MEMS techniques for manufacturing.
  • Application of the platform for MR imaging and NMR spectroscopy.

Main Results:

  • Achieved a flat MR-sensitive area of 18.3 mm(2) with excellent B(0)-field uniformity.
  • Demonstrated high-resolution MRI of fish oocytes (30 × 30 μm(2) resolution, CNR of 10) in 13 min 39 s.
  • Obtained high-resolution NMR spectroscopy of a water phantom (11 ppb linewidth, SNR of 28) in 12 s.

Conclusions:

  • The developed LOC platform offers a powerful tool for MR investigation of planar and sub-millimetre samples.
  • The platform successfully integrates high resolution and large field of view MR detection.
  • This technology holds significant potential for advancing biological sample analysis using MR techniques.