Progress in transparent diamond microelectrode arrays
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2015-06-30 |
| Journal | physica status solidi (a) |
| Authors | T. C. Granado, Gregor Neusser, Christine Kranz, JoĂŁo Batista Destro Filho, Valentina Carabelli |
| Institutions | Universidade Federal de Uberlândia, Universität Ulm |
| Citations | 24 |
Abstract
Section titled âAbstractâDiamond multi electrode arrays (MEAs) and ultraâmicro electrode array (uMEA) fabricated from boronâdoped nanocrystalline (BNCD) thinâfilms, show excellent performances when detecting cell activity in both amperometric and potentiometric applications. Furthermore they are suitable for delivering electrical stimulation to elicit bioelectric events. Results obtained with our previous 9âchannels uMEA for single cells at high spatial resolution, and 16âchannels MEA for multicellular samples, validated the signal quality of diamond MEAs in comparison with competing technologies. The latest progresses are reported in this paper were we describe a new generation of devices with enhanced performances: a 12âchannel uMEA for recordings from a single cell at high spatial resolution, and a 64âchannel MEA to accommodate larger multicellular samples. The technology is based on a 200 Îźm thin highâtemperature glass with the same thermal expansion coefficient of silicon and a spinâon seeding method. Preliminary experiments show excellent electrodes activity and a strongly improved transparency.