Publication:
Ultracompact three-dimensional tubular conductivity microsensors for ionic and biosensing applications

Loading...
Thumbnail Image
Identifiers
Publication date
2014-03-21
Defense date
Advisors
Tutors
Journal Title
Journal ISSN
Volume Title
Publisher
American Chemical Society
Impact
Google Scholar
Export
Research Projects
Organizational Units
Journal Issue
Abstract
We present ultracompact three-dimensional tubular structures integrating Au-based electrodes as impedimetricmicrosensors for the in-flow determination of mono- and divalent ionic species and HeLa cells. The microsensors show animproved performance of 2 orders of magnitude (limit of detection = 0.1 nM for KCl) compared to conventional planarconductivity detection systems integrated in microfluidic platforms and the capability to detect single HeLa cells in flowingphosphate buffered saline. These highly integrated conductivity tubular sensors thus open new possibilities for lab-in-a-tubedevices for bioapplications such as biosensing and bioelectronics.
Description
Keywords
Rolled up electronics, 3d microsensor, Lab in a tube, Nanomembranes
Bibliographic citation
Nano Letters, (2014), 14(4), p.: 2219–2224.