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Related Experiment Video

Updated: Sep 15, 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

Highly Efficient Near-Infrared Light-Driven Molecular Motor Rotation Enabled by Upconversion Nanoparticles as

Jinyu Sheng^1,2, Youxin Fu^1,3, Kefan Wu⁴

¹Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 3, Groningen 9747 AG, The Netherlands.

Journal of the American Chemical Society

|July 17, 2025

Summary

This summary is machine-generated.

Researchers developed a new method to power molecular motors using near-infrared (NIR) light. This strategy utilizes upconversion nanoparticles for efficient energy transfer, enabling applications in responsive materials and biomolecular systems.

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Area of Science:

Materials Science
Nanotechnology
Photochemistry

Background:

Light-driven molecular motors are crucial for advanced materials and biological applications.
Current methods using visible or near-infrared (NIR) light face limitations like heavy substitution and low efficiency.
These limitations hinder practical use in bulk materials and biomolecular systems.

Purpose of the Study:

To develop a general and highly efficient strategy for powering molecular motors with NIR light.
To overcome the limitations of existing photoexcitation methods.
To enable efficient NIR light-driven molecular motor systems for broader applications.

Main Methods:

Utilized spectrally tunable upconversion nanoparticles (UCNPs) for radiative energy transfer.
Powered molecular motors using continuous wave NIR light.
Validated the concept across various molecular motors with different rotary speeds.

Main Results:

Achieved high efficiency in powering NIR light-driven molecular motors via energy transfer.
Motors reached photostationary states (PSS) with efficiency comparable to UV/visible light systems.
Demonstrated a deaeration-free process for NIR light-driven molecular motors.

Conclusions:

The developed strategy offers a general and broadly applicable principle for NIR-powered photodynamic molecular motor systems.
Upconversion nanoparticle-mediated energy transfer provides a highly efficient route for powering molecular motors.
This approach facilitates the design of next-generation responsive materials and biomolecular systems.