### Abstract

Electric cell-substrate impedance sensing (ECIS) system can detect electrically micro-motion of the cell cultured in the gold electrode, originally developed by I. Giaever et al. The ECIS system makes data continuously on resistance and capacitance values change in electric impedance by the cell micro-motion at real time. Human umbilical vein endothelial cells were cultured on the ECIS electrode, and measured after chemical substance (estrogen) stimulation electric impedance over 40 hours. A parameter analyzed cellular motion by using the precise mathematical model simulated cell electric impedance based on the Cole-Cole model. This mathematical model agreed with the experiment value over wide frequency range 25 Hz to 60 kHz. Impedance of the mathematical model in the ECIS system varied with the change in cell-cell distance A and cell-substrate distance h in the motion of the cultured cell. The parameter for the distance of A and h was defined as S_{A} and S _{h} to do the simple and easy evaluation of the cell micro-motion. Furthermore, the actual dimension evaluation of A, h was tired from these parameters. A change in impedance following estrogen stimulation was analyzed by using the mathematical model, and changes in A and h were estimated. As a result, it was proved that about 120 nm decreased A, and about 2 nm increased h after 40 hours.

Original language | English |
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Title of host publication | IFMBE Proceedings |

Pages | 122-125 |

Number of pages | 4 |

Volume | 17 IFMBE |

Publication status | Published - 2007 |

Event | 13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007, ICEBI 2007 - Graz, Austria Duration: Aug 29 2007 → Sep 2 2007 |

### Other

Other | 13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007, ICEBI 2007 |
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Country | Austria |

City | Graz |

Period | 8/29/07 → 9/2/07 |

### Fingerprint

### Keywords

- Bio-electrical impedance
- ECIS method
- Endothelial cells
- Estrogen
- Mathematical model

### ASJC Scopus subject areas

- Biomedical Engineering
- Bioengineering

### Cite this

*IFMBE Proceedings*(Vol. 17 IFMBE, pp. 122-125)

**Quantitative evaluation of nano-order micromotion of cultured cells using electric cell-substrate impedance sensing method.** / Goda, Noriko; Yamamoto, Y.; Kataoka, N.; Nakamura, Takao; Kusuhara, Toshimasa; Mohri, S.; Naruse, Keiji; Kajiya, F.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*IFMBE Proceedings.*vol. 17 IFMBE, pp. 122-125, 13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007, ICEBI 2007, Graz, Austria, 8/29/07.

}

TY - GEN

T1 - Quantitative evaluation of nano-order micromotion of cultured cells using electric cell-substrate impedance sensing method

AU - Goda, Noriko

AU - Yamamoto, Y.

AU - Kataoka, N.

AU - Nakamura, Takao

AU - Kusuhara, Toshimasa

AU - Mohri, S.

AU - Naruse, Keiji

AU - Kajiya, F.

PY - 2007

Y1 - 2007

N2 - Electric cell-substrate impedance sensing (ECIS) system can detect electrically micro-motion of the cell cultured in the gold electrode, originally developed by I. Giaever et al. The ECIS system makes data continuously on resistance and capacitance values change in electric impedance by the cell micro-motion at real time. Human umbilical vein endothelial cells were cultured on the ECIS electrode, and measured after chemical substance (estrogen) stimulation electric impedance over 40 hours. A parameter analyzed cellular motion by using the precise mathematical model simulated cell electric impedance based on the Cole-Cole model. This mathematical model agreed with the experiment value over wide frequency range 25 Hz to 60 kHz. Impedance of the mathematical model in the ECIS system varied with the change in cell-cell distance A and cell-substrate distance h in the motion of the cultured cell. The parameter for the distance of A and h was defined as SA and S h to do the simple and easy evaluation of the cell micro-motion. Furthermore, the actual dimension evaluation of A, h was tired from these parameters. A change in impedance following estrogen stimulation was analyzed by using the mathematical model, and changes in A and h were estimated. As a result, it was proved that about 120 nm decreased A, and about 2 nm increased h after 40 hours.

AB - Electric cell-substrate impedance sensing (ECIS) system can detect electrically micro-motion of the cell cultured in the gold electrode, originally developed by I. Giaever et al. The ECIS system makes data continuously on resistance and capacitance values change in electric impedance by the cell micro-motion at real time. Human umbilical vein endothelial cells were cultured on the ECIS electrode, and measured after chemical substance (estrogen) stimulation electric impedance over 40 hours. A parameter analyzed cellular motion by using the precise mathematical model simulated cell electric impedance based on the Cole-Cole model. This mathematical model agreed with the experiment value over wide frequency range 25 Hz to 60 kHz. Impedance of the mathematical model in the ECIS system varied with the change in cell-cell distance A and cell-substrate distance h in the motion of the cultured cell. The parameter for the distance of A and h was defined as SA and S h to do the simple and easy evaluation of the cell micro-motion. Furthermore, the actual dimension evaluation of A, h was tired from these parameters. A change in impedance following estrogen stimulation was analyzed by using the mathematical model, and changes in A and h were estimated. As a result, it was proved that about 120 nm decreased A, and about 2 nm increased h after 40 hours.

KW - Bio-electrical impedance

KW - ECIS method

KW - Endothelial cells

KW - Estrogen

KW - Mathematical model

UR - http://www.scopus.com/inward/record.url?scp=78649913347&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649913347&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:78649913347

SN - 9783540738404

VL - 17 IFMBE

SP - 122

EP - 125

BT - IFMBE Proceedings

ER -