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Related Experiment Video

Updated: Jul 16, 2026

Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes
09:28

Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes

Published on: January 10, 2017

Multi-Level Asymmetric Mesoporous Nanochannels for Photothermal-Regulated Dopamine Sensing.

Abuduheiremu Awati1,2,3, Xin Zhang1, Yeqing Xu2

  • 1Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, P. R. China.

Angewandte Chemie (International Ed. in English)
|July 15, 2026
PubMed

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Summary

We developed a novel light-responsive nanochannel system for highly sensitive dopamine detection. This bioinspired sensor integrates molecular recognition with photothermal signal amplification for enhanced performance.

Area of Science:

  • Bioinspired materials science
  • Nanotechnology
  • Chemical sensing

Background:

  • Nanochannel systems offer potential for molecular recognition and ion transport control.
  • Integrating selective binding with signal amplification in these systems is challenging.

Purpose of the Study:

  • To develop a multi-level light-responsive nanochannel for dopamine sensing.
  • To achieve efficient signal amplification through molecular recognition and photothermal effects.

Main Methods:

  • Sequential interfacial assembly of mesoporous TiO2 and mesoporous carbon/γ-Fe2O3 on an anodic aluminum oxide scaffold.
  • Utilizing dopamine-specific binding to modulate surface charge and ion conductance.
  • Employing photothermal heating for ion transport regulation.
Keywords:
dopamine sensingmesoporous nanochannelmolecular recognitionmulti‐level asymmetric nanochannelsphotothermal amplification

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Last Updated: Jul 16, 2026

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Published on: January 10, 2017

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Main Results:

  • The nanochannel system demonstrated selective dopamine capture and enhanced ionic conductance.
  • Photothermal regulation enabled light-tunable ion transport.
  • Achieved light-tunable dopamine sensing with a 10 pM detection limit under illumination.

Conclusions:

  • The developed nanochannel system successfully integrates molecular recognition and photothermal signal amplification.
  • This work provides a general strategy for designing high-performance bioinspired sensing platforms.
  • Multiscale theoretical analyses elucidated the sensing mechanism from molecular adsorption to current amplification.