Autonomous Movement of Controllable Assembled Janus Capsule Motors

doi:10.1021/nn304335x

CORC > 化学研究所 > 中国科学院化学研究所

	Autonomous Movement of Controllable Assembled Janus Capsule Motors
	Wu, Yingjie 1; Wu, Zhiguang 1; Lin, Xiankun 1; He, Qiang 1; Li, Junbai 2
刊名	ACS NANO
	2012-12-01
卷号	6 期号:12 页码:10910-10916
关键词	Layer-by-layer Assembly Janus Capsule Autonomous Motor Smart Cargo Bubble Propulsion
ISSN号	1936-0851
DOI	10.1021/nn304335x
英文摘要	We demonstrate the first example of a self-propelled Janus polyelectrolyte multilayer hollow capsule that can serve as both autonomous motor and smart cargo. This new autonomous Janus capsule motor composed of partially coated dendritic platinum nanoparticles (Pt NPs) was fabricated by using a template-assisted layer-by-layer (LW.) self-assembly combined with a micro-contact printing method, The resulting Janus capsule motors still retain outstanding delivery capacities and can respond to external stimuli for controllable encapsulation and triggered release of model drugs. The Pt NPs on the one side of the Janus capsule motors catalytically decompose hydrogen peroxide fuel, generating oxygen bubbles which then recoil the movement of the capsule motors in solution or at an interface. They could autonomously move at a maximum speed of above 1 mm/s (over 125 body lengths/s), while exerting large forces exceeding 75 pN. Also, these asymmetric hollow capsules can be controlled by an external magnetic field to achieve directed movement. This LbL-assembled Janus capsule motor system has potential in making smart self-propelling delivery systems.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000312563600054
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/48727]
专题	中国科学院化学研究所
通讯作者	He, Qiang
作者单位	1.Harbin Inst Technol, Micro Nanotechnol Res Ctr, Minist Educ, Key Lab Microsyst & Microstruct Mfg, Harbin 150080, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wu, Yingjie,Wu, Zhiguang,Lin, Xiankun,et al. Autonomous Movement of Controllable Assembled Janus Capsule Motors[J]. ACS NANO,2012,6(12):10910-10916.
APA	Wu, Yingjie,Wu, Zhiguang,Lin, Xiankun,He, Qiang,&Li, Junbai.(2012).Autonomous Movement of Controllable Assembled Janus Capsule Motors.ACS NANO,6(12),10910-10916.
MLA	Wu, Yingjie,et al."Autonomous Movement of Controllable Assembled Janus Capsule Motors".ACS NANO 6.12(2012):10910-10916.