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Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles
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Programmable Microfluidic Synthesis of Over One Thousand Uniquely Identifiable Spectral Codes.

H Q Nguyen1, B C Baxter1, K Brower2

  • 1Department of Biochemistry and Biophysics, University of San Francisco, San Francisco, CA, 94158-2517, USA.

Advanced Optical Materials
|September 23, 2017
PubMed
Summary
This summary is machine-generated.

Researchers developed Microspheres with Ratiometric Barcode Lanthanide Encoding (MRBLEs), enabling over 1,000 unique spectral codes. This breakthrough significantly advances multiplexed assays for high-throughput biological applications.

Keywords:
LanthanidesMicroparticlesMultiplexingSpectral Encoding

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Area of Science:

  • Nanotechnology
  • Biotechnology
  • Analytical Chemistry

Background:

  • Encoded microparticles are vital for high-throughput sample tracking and biological multiplexing.
  • Spectral encoding offers flexibility but has been limited by the number of resolvable codes.

Purpose of the Study:

  • To develop an advanced spectral encoding scheme for microparticles.
  • To significantly increase the number of unique codes available for multiplexed assays.

Main Methods:

  • Utilized a 5-dimensional spectral encoding scheme with lanthanide nanophosphors.
  • Developed an automated system to produce isotropic spherical microparticles.
  • Created a quantitative framework to evaluate code distinguishability.

Main Results:

  • Generated MRBLEs (Microspheres with Ratiometric Barcode Lanthanide Encoding) with up to 1,100 unique codes.
  • Achieved >98% accurate code assignment for MRBLE sets ranging from 106 to 1,101 codes.
  • Demonstrated >99.99% confidence in code assignment.

Conclusions:

  • The developed MRBLEs represent the largest spectral code libraries to date.
  • This technology significantly expands the possibilities for multiplexed assays.
  • MRBLEs are poised to enable novel applications in biological research and diagnostics.