Evidence map›Paper›PMID 21301069›Full record

ArticlePhysical biology2011

Single-cell bioelectrical impedance platform for monitoring cellular response to drug treatment.

Fareid Asphahani, Kui Wang, Myo Thein, Omid Veiseh, Sandy Yung, Jian Xu, Miqin Zhang

Abstract readEvaluation Study
In one paragraph

Article in Physical biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
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  14. Review
  15. A new toolbox for assessing single cells.Annual review of chemical and biomolecular engineering · 2014
    Review
  16. Review
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Fareid AsphahaniDepartment of Materials Science & Engineering, University of Washington, Seattle, WA 98195, USA.
Kui Wang
Myo Thein
Omid Veiseh
Sandy Yung
Jian Xu
Miqin Zhang

Funding

Microelectrode arrays of single cell biosensorsR01GM075095 · NIGMS · UNIVERSITY OF WASHINGTON · PI ZHANG, MIQIN · 2006 to 2010
$1.3M
NIGMS NIH HHS R01 GM075095NIGMS NIH HHS R01GM075095
6 · The paper itself

Abstract

The response of cells to a chemical or biological agent in terms of their impedance changes in real-time is a useful mechanism that can be utilized for a wide variety of biomedical and environmental applications. The use of a single-cell-based analytical platform could be an effective approach to acquiring more sensitive cell impedance measurements, particularly in applications where only diminutive changes in impedance are expected. Here, we report the development of an on-chip cell impedance biosensor with two types of electrodes that host individual cells and cell populations, respectively, to study its efficacy in detecting cellular response. Human glioblastoma (U87MG) cells were patterned on single- and multi-cell electrodes through ligand-mediated natural cell adhesion. We comparatively investigated how these cancer cells on both types of electrodes respond to an ion channel inhibitor, chlorotoxin (CTX), in terms of their shape alternations and impedance changes to exploit the fine detectability of the single-cell-based system. The detecting electrodes hosting single cells exhibited a significant reduction in the real impedance signal, while electrodes hosting confluent monolayer of cells showed little to no impedance change. When single-cell electrodes were treated with CTX of different doses, a dose-dependent impedance change was observed. This enables us to identify the effective dose needed for this particular treatment. Our study demonstrated that this single-cell impedance system may potentially serve as a useful analytical tool for biomedical applications such as environmental toxin detection and drug evaluation.

Indexed as

Electric ImpedanceAntineoplastic AgentsBiosensing TechniquesCell Line, TumorCell SurvivalDrug Screening Assays, AntitumorElectrodesEquipment DesignGlioblastomaHumansScorpion VenomsSingle-Cell AnalysisAntineoplastic AgentsChlorotoxinScorpion Venoms

Identifiers

PMID21301069
PMCPMC3178809

What OpenQuestion holds

Textmetadata
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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.