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Related Concept Videos

Imperfections in Crystal Structure: Stoichiometric Point Defects01:26

Imperfections in Crystal Structure: Stoichiometric Point Defects

Schottky defects arise when some lattice points in a crystal, such as those in NaCl, remain unoccupied, creating lattice vacancies without disturbing the overall electrical neutrality of the crystal. This defect is common in ionic crystals where the positive and negative ions are similar in size, as seen in sodium chloride and cesium chloride. The presence of Schottky defects enables the crystal to conduct electricity to a small extent through an ionic mechanism. Electric fields cause nearby...

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Lensless On-chip Imaging of Cells Provides a New Tool for High-throughput Cell-Biology and Medical Diagnostics
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Lensless On-Chip Chemiluminescence Imaging for High-Throughput Single-Cell Heterogeneity Analysis.

Dehong Yang1, Ying Fang1, Xiaoyin Liu1

  • 1Biosensor National Special Laboratory, Department of Biomedical Engineering, Zhejiang University, Hangzhou, 310027, China.

Nano Letters
|November 8, 2024
PubMed
Summary
This summary is machine-generated.

A new lensless chemiluminescence chip enables high-throughput single-cell imaging with subcellular resolution. This technology advances the study of cellular heterogeneity for precision disease diagnosis and treatment.

Keywords:
contact lensless imaginghigh throughputmembrane glycoproteinon-chip chemiluminescent imagingsingle cell

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Area of Science:

  • Biomedical Engineering
  • Cell Biology
  • Analytical Chemistry

Background:

  • Understanding cellular heterogeneity is crucial for personalized medicine and disease diagnostics.
  • Existing high-throughput imaging methods often lack subcellular resolution or are complex.
  • Advanced imaging techniques are needed for detailed analysis of single-cell functions.

Purpose of the Study:

  • To develop a miniaturized, lensless chemiluminescence chip for high-throughput single-cell imaging.
  • To achieve subcellular resolution in imaging cellular heterogeneity and function.
  • To explore the potential of this platform for precision diagnostics.

Main Methods:

  • Development of a miniaturized lensless chemiluminescence (CL) chip integrated with CMOS technology.
  • Utilizing sensitive chemiluminescence sensing and wide field-of-view contact lensless imaging.
  • Imaging and analyzing membrane glycoproteins and protein heterogeneity in over 1000 single cells.
  • Investigating functional adhesion and heterogeneity of single live cells.

Main Results:

  • Demonstrated high-throughput imaging of over 1000 single cells with subcellular resolution.
  • Successfully examined membrane glycoprotein and protein heterogeneity for precision analysis.
  • Imaged and explored functional adhesion and heterogeneity in single live cells.
  • The CL-CMOS platform showed high sensitivity and resolution for cellular studies.

Conclusions:

  • The miniaturized lensless on-chip CL-CMOS imaging platform offers a novel technique for high-throughput single-cell analysis.
  • This technology provides high sensitivity and subcellular resolution, enabling detailed study of biological heterogeneity.
  • Potential applications include advancing precision disease diagnosis and treatment, particularly in point-of-care settings.