Light-activated Janus self-assembled capsule micromotors

Mingjun Xuan; Jingxin Shao; Xiankun Lin; Luru Dai; Qiang He

doi:10.1016/j.colsurfa.2015.04.032

Light-activated Janus self-assembled capsule micromotors

Mingjun Xuan
, Jingxin Shao
, Xiankun Lin
, Luru Dai^*
, Qiang He

^*Corresponding author for this work

Faculty of Life Sciences and Medicine

Harbin Institute of Technology
National Center for Nanoscience and Technology

Research output: Contribution to journal › Article › peer-review

56 Scopus citations

Abstract

We report a self-propelled Janus micromotor composed by chitosan (CHI) and alginate (ALG) multilayer capsule driven by near-infrared (NIR) illumination. The CHI/ALG multilayer capsules were prepared using conventional template-assisted layer-by-layer (LbL) self-assembly. Subsequently, gold nanorods (GNRs) were deposited on one side of the assembled capsules using microcontact printing method. The GNRs-modified Janus capsules can be driven by NIR irradiation owing to the generated thermal gradient and no additional chemical fuel are requested. It is also shown the moving speed of these Janus micromotors can be regulated by irradiation intensity and reach to 23.27μm/s at a laser power of 9.6J/cm². Since no additional chemical component as fuel, this GNRs-modified ALG/CHI multilayer Janus capsule micromotor shows great potential as a biomimetic delivery platform in biomedical field.

Original language	English
Pages (from-to)	92-97
Number of pages	6
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	482
DOIs	https://doi.org/10.1016/j.colsurfa.2015.04.032
State	Published - 5 Oct 2015

Keywords

Autonomous motor
Gold nanorods
Janus capsule
Layer-by-layer
Light activation

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10.1016/j.colsurfa.2015.04.032

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@article{691f7cd5db5e4e3a8a0738b6d24010cf,

title = "Light-activated Janus self-assembled capsule micromotors",

abstract = "We report a self-propelled Janus micromotor composed by chitosan (CHI) and alginate (ALG) multilayer capsule driven by near-infrared (NIR) illumination. The CHI/ALG multilayer capsules were prepared using conventional template-assisted layer-by-layer (LbL) self-assembly. Subsequently, gold nanorods (GNRs) were deposited on one side of the assembled capsules using microcontact printing method. The GNRs-modified Janus capsules can be driven by NIR irradiation owing to the generated thermal gradient and no additional chemical fuel are requested. It is also shown the moving speed of these Janus micromotors can be regulated by irradiation intensity and reach to 23.27μm/s at a laser power of 9.6J/cm2. Since no additional chemical component as fuel, this GNRs-modified ALG/CHI multilayer Janus capsule micromotor shows great potential as a biomimetic delivery platform in biomedical field.",

keywords = "Autonomous motor, Gold nanorods, Janus capsule, Layer-by-layer, Light activation",

author = "Mingjun Xuan and Jingxin Shao and Xiankun Lin and Luru Dai and Qiang He",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = oct,

day = "5",

doi = "10.1016/j.colsurfa.2015.04.032",

language = "英语",

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pages = "92--97",

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TY - JOUR

T1 - Light-activated Janus self-assembled capsule micromotors

AU - Xuan, Mingjun

AU - Shao, Jingxin

AU - Lin, Xiankun

AU - Dai, Luru

AU - He, Qiang

PY - 2015/10/5

Y1 - 2015/10/5

N2 - We report a self-propelled Janus micromotor composed by chitosan (CHI) and alginate (ALG) multilayer capsule driven by near-infrared (NIR) illumination. The CHI/ALG multilayer capsules were prepared using conventional template-assisted layer-by-layer (LbL) self-assembly. Subsequently, gold nanorods (GNRs) were deposited on one side of the assembled capsules using microcontact printing method. The GNRs-modified Janus capsules can be driven by NIR irradiation owing to the generated thermal gradient and no additional chemical fuel are requested. It is also shown the moving speed of these Janus micromotors can be regulated by irradiation intensity and reach to 23.27μm/s at a laser power of 9.6J/cm2. Since no additional chemical component as fuel, this GNRs-modified ALG/CHI multilayer Janus capsule micromotor shows great potential as a biomimetic delivery platform in biomedical field.

AB - We report a self-propelled Janus micromotor composed by chitosan (CHI) and alginate (ALG) multilayer capsule driven by near-infrared (NIR) illumination. The CHI/ALG multilayer capsules were prepared using conventional template-assisted layer-by-layer (LbL) self-assembly. Subsequently, gold nanorods (GNRs) were deposited on one side of the assembled capsules using microcontact printing method. The GNRs-modified Janus capsules can be driven by NIR irradiation owing to the generated thermal gradient and no additional chemical fuel are requested. It is also shown the moving speed of these Janus micromotors can be regulated by irradiation intensity and reach to 23.27μm/s at a laser power of 9.6J/cm2. Since no additional chemical component as fuel, this GNRs-modified ALG/CHI multilayer Janus capsule micromotor shows great potential as a biomimetic delivery platform in biomedical field.

KW - Autonomous motor

KW - Gold nanorods

KW - Janus capsule

KW - Layer-by-layer

KW - Light activation

UR - https://www.scopus.com/pages/publications/84929179227

U2 - 10.1016/j.colsurfa.2015.04.032

DO - 10.1016/j.colsurfa.2015.04.032

M3 - 文章

AN - SCOPUS:84929179227

SN - 0927-7757

VL - 482

SP - 92

EP - 97

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

ER -

Light-activated Janus self-assembled capsule micromotors

Abstract

Keywords

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