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Fabrication of high-aspect-ratio 3D hydrogel microstructures using optically induced electrokinetics
Li, Yi; Lai, Sam H.S.; Liu N(刘娜); Zhang, Guanglie; Liu LQ(刘连庆); Lee, Gwo-Bin; Li WJ(李文荣)
Department机器人学研究室
Source PublicationMicromachines
ISSN2072-666X
2016
Volume7Issue:4Pages:1-10
Indexed BySCI ; EI
EI Accession number20161902372197
WOS IDWOS:000375209100014
Contribution Rank2
Funding OrganizationHong Kong Research Grants Council (Project no: CityU 116912), the Chinese Academy of Sciences–Croucher Funding Scheme for Joint Laboratories (Project no: 9500011), and The Science Technology and Innovation Committee of Shenzhen Municipality grants (JCYJ20140813161522550 and JCYJ20150828104330541).
KeywordOptically Induced Electrokinetics Polymer Microfabrication Hydrogel Microstructures 3d Polymer Structures
AbstractWe present a rapid hydrogel polymerization and prototyping microfabrication technique using an optically induced electrokinetics (OEK) chip, which is based on a non-UV hydrogel curing principle. Using this technique, micro-scale high-aspect-ratio three-dimensional polymer features with different geometric sizes can be fabricated within 1-10 min by projecting pre-defined visible light image patterns onto the OEK chip. This method eliminates the need for traditional photolithography masks used for patterning and fabricating polymer microstructures and simplifies the fabrication processes. This technique uses cross-link hydrogels, such as poly(ethylene glycol) (PEG)-diacrylate (PEGDA), as fabrication materials. We demonstrated that hydrogel micropillar arrays rapidly fabricated using this technique can be used as molds to create micron-scale cavities in PDMS (polydimethylsiloxane) substrates. Furthermore, hollow, circular tubes with controllable wall thicknesses and high-aspect ratios can also be fabricated. These results show the potential of this technique to become a rapid prototyping technology for producing microfluidic devices. In addition, we show that rapid prototyping of three-dimensional suspended polymer structures is possible without any sacrificial etching process.
Language英语
WOS HeadingsScience & Technology ; Technology
WOS SubjectNanoscience & Nanotechnology ; Instruments & Instrumentation
WOS KeywordMANIPULATION ; PARTICLES ; TISSUE
WOS Research AreaScience & Technology - Other Topics ; Instruments & Instrumentation
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/18640
Collection机器人学研究室
Corresponding AuthorLi WJ(李文荣)
Affiliation1.Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong
2.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences (CAS), Shenyang 110016, China
3.Shenzhen Academy of Robotics, Shenzhen, 518000, China
4.Department of Power Mechanical Engineering, National Tsinghua University, Hsinchu, 300, Taiwan
Recommended Citation
GB/T 7714
Li, Yi,Lai, Sam H.S.,Liu N,et al. Fabrication of high-aspect-ratio 3D hydrogel microstructures using optically induced electrokinetics[J]. Micromachines,2016,7(4):1-10.
APA Li, Yi.,Lai, Sam H.S..,Liu N.,Zhang, Guanglie.,Liu LQ.,...&Li WJ.(2016).Fabrication of high-aspect-ratio 3D hydrogel microstructures using optically induced electrokinetics.Micromachines,7(4),1-10.
MLA Li, Yi,et al."Fabrication of high-aspect-ratio 3D hydrogel microstructures using optically induced electrokinetics".Micromachines 7.4(2016):1-10.
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