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. 2015 Jun 17;2(6):150031. doi: 10.1098/rsos.150031

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© 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 1. — Perfusion cap features. Perfusion cap on a commercial microelectrode array (MEA) inserted into its amplifier with embedded OD 2.1 mm PTFE inlet and outlet tubes. Inset: bottom view CAD rendering of the inner cap geometry showing the central protrusion with bubble guidance slope between the inlet and outlet tube endings. A dome-shaped cavity at the outlet tube acted as a bubble trap.