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Transformation of 2D Planes into 3D Soft and Flexible Structures with Embedded Electrical Functionality

Title
Transformation of 2D Planes into 3D Soft and Flexible Structures with Embedded Electrical Functionality
Authors
Moon, Hyun MinChou, NamsunSeo, Hee WonLee, KyeongyeonPark, JinheeKim, Sohee
DGIST Authors
Park, JinheeKim, Sohee
Issue Date
2019-10
Citation
ACS Applied Materials and Interfaces, 11(39), 36186-36195
Type
Article
Article Type
Article
Author Keywords
parylene-Cflexiblesoft3D structureselective bondingPDMSMEMS
Keywords
FABRICATIONNANOFIBERS
ISSN
1944-8244
Abstract
Three-dimensional (3D) structures composed of flexible and soft materials have been in demand for implantable biomedical devices. However, the fabrication of 3D structures using microelectromechanical system (MEMS) techniques has limitations in terms of the materials and the scale of the structures. Here, a technique to selectively bond polydimethylsiloxane (PDMS) and parylene-C by plasma treatment is reported, with which two-dimensional structures that are fabricated using MEMS techniques are turned into 3D structures by the inflation of selectively non-bonded patterns. The bonding strength and the bonding mechanism were analyzed by mechanical tests and chemical analyses, respectively. We fabricated soft and flexible 3D structures with various patterns and dimensions, even with embedded electrical functions, including light emitting diodes and electrocorticogram electrodes. Based on these results, the flexible, soft, and MEMS-capable 3D structures that are obtained by the developed selective bonding technique are promising for applications in a wide range of biomedical applications. © 2019 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/10845
DOI
10.1021/acsami.9b09578
Publisher
American Chemical Society
Related Researcher
  • Author Kim, Sohee Neural Interfaces & MicroSystems Lab
  • Research Interests Neural interface; Brain interface; Bio MEMS; Soft MEMS; Stretchable electronics; Zebrafish electrophysiology
Files:
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Collection:
Department of Emerging Materials ScienceOrganic-Inorganic Hybrids Lab1. Journal Articles
Department of Robotics EngineeringNeural Interfaces & MicroSystems Lab1. Journal Articles


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