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Updated: May 30, 2025

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

Photopyroelectric tweezers for versatile manipulation.

Fang Wang¹, Cong Liu^1,2, Zhengjin Dai^1,3

¹Center for Intelligent Biomedical Materials and Devices (IBMD), Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China.

Innovation (Cambridge (Mass.))

|January 28, 2025

Summary

We developed novel photopyroelectric tweezers (PPT) that overcome limitations of traditional optical tweezers. These versatile tweezers enable precise manipulation of diverse materials and phases across scales, advancing fields like robotics and biomedicine.

Keywords:

Cross-scale cell stimulation object manipulation pyroelectricity tweezer

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Last Updated: May 30, 2025

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Published on: September 27, 2011

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Published on: August 27, 2014

Area of Science:

Physics
Materials Science
Biotechnology

Background:

Optical tweezers offer powerful manipulation capabilities but face limitations due to specific requirements like high-intensity lasers and conductive media.
Existing techniques are often restricted in adaptability, hindering broad practical applications in diverse scientific and medical fields.

Purpose of the Study:

To introduce innovative photopyroelectric tweezers (PPT) that integrate light and electric fields for versatile object manipulation.
To demonstrate the PPT's capability to overcome the limitations of conventional tweezers, enhancing flexibility and adaptability.

Main Methods:

Utilizing a rationally designed photopyroelectric substrate for efficient photo-induced surface charge generation.
Developing a system that combines light and electric fields for remote and programmable manipulation.

Main Results:

The PPT successfully manipulated objects of various materials (polymer, inorganic, metal), phases (bubble, liquid, solid), and geometries (sphere, cuboid, wire).
Demonstrated adaptability to high-conductivity media and applicability to both macroscopic and microscopic manipulation platforms.
Enabled cross-scale manipulation of solid objects, liquid droplets, and biological samples.

Conclusions:

The photopyroelectric tweezers offer a revolutionary tool by bridging macroscopic and microscopic manipulation gaps.
PPTs exhibit high flexibility and adaptability, paving the way for advanced applications in robotics, colloidal science, and biomedical fields.