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Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research
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Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Published on: December 18, 2020

An antilock molecular braking system.

Wei-Ting Sun1, Shou-Ling Huang, Hsuan-Hsiao Yao

  • 1Department of Chemistry, National Taiwan University, Taipei, Taiwan 10617.

Organic Letters
|August 3, 2012
PubMed
Summary
This summary is machine-generated.

Researchers developed a light-controlled molecular brake with an antilock feature. This brake uses photoinduced electron transfer (PET) and protonation to control its on/off states, mimicking vehicle antilock braking systems (ABS).

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Last Updated: May 19, 2026

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research
07:15

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Published on: December 18, 2020

Area of Science:

  • Molecular engineering
  • Photochemistry
  • Supramolecular chemistry

Background:

  • Molecular brakes offer precise control over molecular motion.
  • Photoisomerization is a common mechanism for light-driven molecular switches.
  • Existing molecular switches lack advanced functionalities like antilock mechanisms.

Purpose of the Study:

  • To design and construct a light-driven molecular brake with an antilock function.
  • To integrate a nonradiative photoinduced electron transfer (PET) decay channel for brake control.
  • To enable rapid brake release via protonation-induced deactivation of the PET process.

Main Methods:

  • Synthesis of a novel molecular brake system.
  • Utilizing trans → cis photoisomerization for brake actuation.
  • Employing nonradiative photoinduced electron transfer (PET) for brake control.
  • Investigating the effect of protonation on PET deactivation and brake release.

Main Results:

  • Successfully constructed a light-driven molecular brake.
  • Demonstrated an antilock function by controlling photoisomerization with a PET channel.
  • Achieved rapid brake release through protonation, deactivating the PET process.
  • Showcased a functional cycle of irradiation-protonation-irradiation-deprotonation mimicking an antilock braking system (ABS).

Conclusions:

  • The developed molecular brake effectively mimics the antilock braking system (ABS) functionality.
  • The integration of a PET decay channel provides a mechanism for controlled brake release.
  • Protonation serves as a trigger for fast deactivation of the PET process, enabling rapid brake release.