On-chip non-invasive and label-free cell discrimination by impedance spectroscopy

Schade-Kampmann, G; Huwiler, A; Hebeisen, M; Hessler, T; Di Berardino, M (2008). On-chip non-invasive and label-free cell discrimination by impedance spectroscopy. Anaesthesia, 41(5), pp. 830-40. Oxford: Wiley-Blackwell 10.1111/j.1365-2184.2008.00548.x

Full text not available from this repository. (Request a copy)

OBJECTIVES: Many flow-cytometric cell characterization methods require costly markers and colour reagents. We present here a novel device for cell discrimination based on impedance measurement of electrical cell properties in a microfluidic chip, without the need of extensive sample preparation steps and the requirement of labelling dyes. MATERIALS AND METHODS, RESULTS: We demonstrate that in-flow single cell measurements in our microchip allow for discrimination of various cell line types, such as undifferentiated mouse fibroblasts 3T3-L1 and adipocytes on the one hand, or human monocytes and in vitro differentiated dendritic cells and macrophages on the other hand. In addition, viability and apoptosis analyses were carried out successfully for Jurkat cell models. Studies on several species, including bacteria or fungi, demonstrate not only the capability to enumerate these cells, but also show that even other microbiological life cycle phases can be visualized. CONCLUSIONS: These results underline the potential of impedance spectroscopy flow cytometry as a valuable complement to other known cytometers and cell detection systems.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Pharmacology

UniBE Contributor:

Huwiler, Andrea

ISSN:

0003-2409

ISBN:

18673370

Publisher:

Wiley-Blackwell

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 15:03

Last Modified:

04 May 2014 23:19

Publisher DOI:

10.1111/j.1365-2184.2008.00548.x

PubMed ID:

18673370

Web of Science ID:

000259209000009

URI:

https://boris.unibe.ch/id/eprint/27524 (FactScience: 108724)

Actions (login required)

Edit item Edit item
Provide Feedback