Work

Effect of oxygen plasma treatment and grid design between polyimide layers for longterm implantation

Year: 2007

Type: conference-paper

Abstract: Two years of polyimide based electrode structure implantation into the rabbit eye showed spatial features of local swellings and peeling off nearby electrode sites. In case of swelling and peeling off, it causes serious gradual deteoriation of polyimide structure and result in functional failure for electrode. We suggest a reinforced structure with chemical, mechanical oxygen plasma treatment and geometrical grid design to prevent from swelling or peeling off of polyimide layer. To show the effect of these structural modification, we introduced a reliability test method of layer adhesion, blister test. Designed samples were soaked into phosphate buffered saline(PBS) for accelerated aging study. In this study, such a reinforcement showed an effectiveness of water absorption barrier and longer preservation of structure compared to a non-treated structure.

Source: Seoul National University Open Repository (Seoul National University)

Authors: 김의태, 이승우, 김성준

Language: Korean

Topic: Neuroscience and Neural Engineering

Subfield: Cellular and Molecular Neuroscience

Field: Neuroscience

Domain: Life Sciences

SDG: Good health and well-being

Open Access status: green

OpenAlex ID: W7169969636

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