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Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores
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Inner Wall and Outer Surface Distinguished Solid-State Nanopores for Sensing.

Yu Dai1, Yiwei Zhang1, Qun Ma1

  • 1State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China.

Analytical Chemistry
|December 6, 2022
PubMed
Summary
This summary is machine-generated.

Solid-state nanopores offer enhanced stability and modification for applications like sequencing and sensing. Recent research highlights functional modifications on both inner and outer pore surfaces for improved performance.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Analytical Chemistry

Background:

  • Solid-state nanopores, mimicking biological counterparts, possess superior mechanical properties and stability.
  • They are crucial in diverse fields including sequencing, sensing, molecular sieving, nanofluidics, nanoelectrochemistry, and energy conversion.
  • Traditional research focused on inner wall functionalization due to ion/molecule transport characteristics.

Purpose of the Study:

  • To review the research progress of solid-state nanopores with distinguished inner wall and outer surface functionalization.
  • To highlight the processing methods and advantages of these modified nanopores.
  • To summarize their functions and applications, particularly in sensing, and provide future research insights.

Main Methods:

  • Review of existing literature on solid-state nanopore functionalization.
  • Analysis of processing techniques for inner and outer surface modifications.
  • Summarization of experimental results and applications in sensing.

Main Results:

  • Functionalization of both inner and outer surfaces of solid-state nanopores offers significant advantages.
  • Outer surface modifications provide anti-interference capabilities and enhance ionic signal detection.
  • Distinguished functionalization strategies lead to improved performance in various sensing applications.

Conclusions:

  • Solid-state nanopores with dual surface functionalization represent a significant advancement in nanopore technology.
  • Targeted modifications of inner and outer surfaces unlock new potentials for high-performance sensing and other applications.
  • Further research into novel functionalization techniques and applications is warranted.