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Updated: Jun 17, 2026
10:03
The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids
Published on: September 30, 2014
Dipolar molecules as impellers achieving electric-field-stimulated release.
Yingchun Zhu1, Huijuan Liu, Fang Li
1Key Lab of Inorganic Coating Materials, Shanghai Institute of Ceramics, CASS, Shanghai 200050, China. yzhu@mail.sic.ac.cn
Journal of the American Chemical Society
|January 19, 2010
Summary
Researchers developed a novel electric field-controlled release system using dipolar molecules as nanoimpellers. This system enables targeted, remote drug delivery for potential applications in tumor treatment.
Area of Science:
- Nanotechnology
- Materials Science
- Biomedical Engineering
Background:
- Controlled release systems are crucial for targeted drug delivery.
- Existing methods often lack precise external control or can be invasive.
Purpose of the Study:
- To design and demonstrate a novel external electric field-controlled release system.
- To utilize functional dipolar molecules as nanoimpellers for precise molecular manipulation.
Main Methods:
- Synthesized the dipolar molecule 4-(3-cyanophenyl)butylene with a strong dipole moment.
- Grafted the molecule onto the inner surfaces of mesoporous materials.
- Applied alternating electric fields to induce molecular reorientation and subsequent release.
Main Results:
- The dipolar molecules successfully reoriented in response to external electric fields.
- Alternating electric fields induced the "nanoimpellers" to push guest molecules out of mesopores.
- Demonstrated effective, externally controlled release of encapsulated substances.
Conclusions:
- The developed system offers a new paradigm for external electric field-controlled release.
- This technology holds promise for targeted tumor treatment due to its remote control and local release capabilities.
- The non-electrochemical nature of the process offers an advantage over other methods.
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