Compartmentalized Microhelices Prepared via Electrohydrodynamic Cojetting
Abstract
Anisotropically compartmentalized microparticles have attracted increasing interest in areas ranging from sensing, drug delivery, and catalysis to microactuators. Herein, a facile method is reported for the preparation of helically decorated microbuilding blocks, using a modified electrohydrodynamic cojetting method. Bicompartmental microfibers are twisted in situ, during electrojetting, resulting in helical microfibers. Subsequent cryosectioning of aligned fiber bundles provides access to helically decorated microcylinders. The unique helical structure endows the microfibers/microcylinders with several novel functions such as translational motion in response to rotating magnetic fields. Finally, microspheres with helically patterned compartments are obtained after interfacially driven shape shifting of helically decorated microcylinders.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 19, 2018
- Source ID
- 10.1002/advs.201800024
Entities
People
- Jaewon Yoon
- Jae‐won Shin
- Joerg Lahann
- Kyung Jin Lee
- Manjae Gil
- Sahar Rhamani
- Seongjun Moon
Organizations
- Chungnam National University
- Defense Threat Reduction Agency
- Karlsruhe Institute of Technology
- Korea Institute of Energy Technology Evaluation and Planning
- Ministry of Trade, Industry and Energy
- National Research Foundation of Korea
- University of Michigan