Electrostatic‐Driven Dynamic Jamming of 2D Nanoparticles at Interfaces for Controlled Molecular Diffusion. Issue 36 (1st August 2018)

• Record Type: Journal Article
• Authors: Luo, Jianhui; Zeng, Minxiang; Peng, Baoliang; Tang, Yijie; Zhang, Lecheng; Wang, Pingmei; He, Lipeng; Huang, Dali; Wang, Ling; Wang, Xuezhen; Chen, Mingfeng; Lei, Shijun; Lin, Pengcheng; Chen, Ying; Cheng, Zhengdong
• Is Part Of: Angewandte Chemie international edition. Volume 57:Issue 36(2018)
• Page Start: 11752
• Page End: 11757
• Publication Date: 2018-08-01
• Subjects: controlled release -- emulsions -- interfaces -- nanogates -- self-assembly; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201807372
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: Dynamically engineering the interfacial interaction of nanoparticles has emerged as a new approach for bottom‐up fabrication of smart systems to tailor molecular diffusion and controlled release. Janus zwitterionic nanoplates are reported that can be switched between a locked and unlocked state at interfaces upon changing surface charge, allowing manipulation of interfacial properties in a fast, flexible, and switchable manner. Combining experimental and modeling studies, an unambiguous correlation is established among the electrostatic energy, the interface geometry, and the interfacial jamming states. As a proof‐of‐concept, the well‐controlled interfacial jamming of nanoplates enabled the switchable molecular diffusion through liquid–liquid interfaces, confirming the feasibility of using nanoparticle‐based surfactants for advanced controlled release. Abstract : Engineering the interfacial interaction of nanoparticles has emerged as an approach for bottom‐up fabrication of smart systems to tailor molecular diffusion and controlled release. Zwitterionic nanoplates are presented that can switch between a locked and unlocked state at interfaces upon changing surface charge, allowing effective and switchable regulation of the interfacial molecular diffusion.