Molding Microchannel and Brain Implant Scaffolds from Microstructured Double Layer Photo Resin Master Casts - Concepts and Examples
Rouhollah Habibey, Asiyeh Golabchi, Axel Blau
2013
Abstract
Replica-casting finds wide application in soft lithography (Qin et al., 2010) and microfluidics (Bettinger et al., 2010). Most commonly, structures are molded with micro- to nano-patterned photoresists as master casts into polydimethylsiloxane (PDMS). PDMS features many favorable properties. It reproduces geometric details with nanometer fidelity, has low cytotoxicity, is transparent in the visible spectrum, biostable both in vitro and in vivo, can be plasma-bonded to itself, has low water permeability and is simple to handle and process. After curing, the PDMS can be easily peeled from the master and the latter usually be reused (Anderson et al., 2000) if patterns are not undercut (Yun et al., 2008). Here, we demonstrate a straightforward replica-molding process that can be exploited for the generation of perforated microchannel scaffolds for the in vitro use in axonal guidance and regeneration studies on microelectrode arrays (MEAs) or the production of tissue-conformal in vivo MEAs for neuroprosthetic applications, respectively.
References
- Anderson, J. R., Chiu, D. T., Jackman, R. J., Cherniavskaya, O., McDonald, J. C., Wu, H., Whitesides, S. H., & Whitesides, G. M. (2000). Fabrication of Topologically Complex ThreeDimensional Microfluidic Systems in PDMS by Rapid Prototyping. Anal Chem, 72(14), 3158-3164.
- Bettinger, C. J., & Borenstein, J. T. (2010). Biomaterialsbased microfluidics for engineered tissue constructs. Soft Matter, 6(20), 4999-5015.
- Difato, F., Schibalsky, L., Benfenati, F., & Blau, A. (2011). Integration of optical manipulation and electrophysiological tools to modulate and record activity in neural networks. International Journal of Optomechatronics, 5(3), 191-216.
- Qin, D., Xia, Y., & Whitesides, G. M. (2010). Soft lithography for micro- and nanoscale patterning. Nat Protoc, 5(3), 491-502.
- Yun, K.-S., & Yoon, E. (2008). Fabrication of complex multilevel microchannels in PDMS by using threedimensional photoresist masters. Lab on a Chip, 8(2), 245-250.
Paper Citation
in Harvard Style
Habibey R., Golabchi A. and Blau A. (2013). Molding Microchannel and Brain Implant Scaffolds from Microstructured Double Layer Photo Resin Master Casts - Concepts and Examples . In - NEUROTECHNIX, ISBN , pages 0-0
in Bibtex Style
@conference{neurotechnix13,
author={Rouhollah Habibey and Asiyeh Golabchi and Axel Blau},
title={Molding Microchannel and Brain Implant Scaffolds from Microstructured Double Layer Photo Resin Master Casts - Concepts and Examples},
booktitle={ - NEUROTECHNIX,},
year={2013},
pages={},
publisher={SciTePress},
organization={INSTICC},
doi={},
isbn={},
}
in EndNote Style
TY - CONF
JO - - NEUROTECHNIX,
TI - Molding Microchannel and Brain Implant Scaffolds from Microstructured Double Layer Photo Resin Master Casts - Concepts and Examples
SN -
AU - Habibey R.
AU - Golabchi A.
AU - Blau A.
PY - 2013
SP - 0
EP - 0
DO -