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Updated: Jun 17, 2025

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

Published on: March 13, 2019

Aggregation-Induced Emissive Feringa-Type Motor: Toward the Dual-Functional Motor in a Single Molecular Aggregation

Ziwei Jiang¹, Yunan Qin¹, Guohong Liao^2,3

¹Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China.

Small (Weinheim an Der Bergstrasse, Germany)

|August 7, 2024

Summary

This study introduces a novel light-driven Feringa-type motor that exhibits aggregation-induced emission (AIE) and rotary motion. This biocompatible molecular motor opens new avenues for advanced light-responsive artificial molecular machines.

Keywords:

aggregation‐induced emission light‐responsiveness molecular machine molecular motor rotary motion

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Area of Science:

Materials Science
Organic Chemistry
Photochemistry

Background:

Aggregation-induced emission (AIE) enables tunable photoluminescence through molecular aggregation.
Light-responsive molecular machines offer potential for versatile functions.

Purpose of the Study:

To report a light-driven Feringa-type motor that exhibits both aggregation-induced emission and rotary motion.
To investigate the photophysical properties and biocompatibility of this novel molecular motor.

Main Methods:

Synthesis and characterization of a Feringa-type molecular motor.
Investigation of light-activated rotary motion and aggregation-induced emission.
Semi-quantitative TD-DFT calculations to understand photophysical processes.
Cytotoxicity testing to assess biocompatibility.

Main Results:

The Feringa-type motor demonstrates light-activated rotary motion in an appropriate aggregation state.
The motor exhibits aggregation-induced emission with a good quantum yield.
TD-DFT calculations provide insights into competing photoluminescence and photoisomerization.
Cytotoxicity tests confirm good biocompatibility, suitable for bio-environmental applications.

Conclusions:

Combining AIE concepts with light-driven Feringa motors yields novel motorized AIEgens.
This work paves the way for developing advanced molecular motors with multi-functional capabilities.
The reported motor shows promise for applications in light-responsive systems and bio-environments.