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Embedding Carbon Nanotubes in Artificial Cells Enhances Probe Transfer.

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  • 1School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P.R. China.

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Summary

This study introduces an artificial cell strategy using carbon nanotubes (CNTs) to enhance signal probe transfer for detecting intracellular microRNAs (miRNAs). This method improves biomarker sensing for disease diagnosis.

Keywords:
artificial channelcarbon nanotubeliposome‐based artificial cellsmembrane fusionprobe transfer

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Area of Science:

  • Biotechnology
  • Nanotechnology
  • Molecular Diagnostics

Background:

  • Intracellular biomarker monitoring is vital for disease diagnosis.
  • Slow signal molecule transfer across cell membranes limits clinical applications.

Purpose of the Study:

  • To develop an artificial cell-based sensing strategy to enhance intracellular signal probe transfer.
  • To improve the detection of microRNAs (miRNAs) for diagnostic purposes.

Main Methods:

  • Constructed liposome-based artificial cells with embedded carbon nanotubes (CNTs) in their membranes.
  • Utilized CNTs as artificial channels to facilitate intercellular signal probe transduction and mass transfer.
  • Employed molecular dynamics simulations to validate CNTs-mediated cell-cell fusion.

Main Results:

  • Successfully enhanced cell-cell signal probe transmission through CNTs.
  • Achieved selective hybridization of probes with intracellular target miRNAs, triggering fluorescence.
  • Demonstrated quantitative detection and visualization of let-7a miRNA in living colon cancer cells.

Conclusions:

  • The proposed strategy significantly accelerates cell-cell signal probe transmission.
  • This approach enables effective sensing of intracellular biomarkers, advancing diagnostic capabilities.