Title
A microfluidic system enabling continuous characterization of single-cell specific membrane capacitance and cytoplasm conductivity
Abstract
This paper presents a microfluidic system enabling continuous characterization of specific membrane capacitance (Cspecific membrane) and cytoplasm conductivity (σcytoplasm) of single biological cells. In this study, cells were aspirated through a constriction channel while cell elongations and impedance profiles at 1 kHz and 100 kHz were measured simultaneously using microscopy imaging and a lock-in amplifier. Based on the proposed equivalent circuit model, raw data were translated to Cspecific membrane and σcytoplasm, which were 3.67±1.00 vs. 4.53±1.51 μF/cm2 and 0.47±0.09 vs. 0.55±0.14 S/m for the kidney tumor cell line of 786-O (n=302) and the vascular smooth muscle cell line of T2 (n=216), respectively.
Year
DOI
Venue
2013
10.1109/NEMS.2013.6559747
NEMS
Keywords
Field
DocType
cellular biophysics,biomems,microfluidic system,cytoplasm conductivity,frequency 100 khz,capacitance,microscopy,constriction channel,bioelectric phenomena,lockin amplifier,single-cell analysis,microfluidics,frequency 1 khz,biomembranes,specific membrane capacitance,cell impedance profile,single cell specific membrane capacitance,cell elongation profile,impedance measurement,spectroscopy,impedance
Conductivity,Analytical chemistry,Membrane potential,Capacitance,Cytoplasm,Cell,Membrane,Microscopy,Materials science,Equivalent circuit
Conference
Volume
Issue
ISSN
null
null
null
ISBN
Citations 
PageRank 
978-1-4673-6351-8
0
0.34
References 
Authors
0
11
Name
Order
Citations
PageRank
Yang Zhao120.83
Deyong Chen21310.49
Hao Li300.34
Yana Luo400.34
Bin Deng500.34
Song-Bin Huang693.97
Tzukeng Chiu700.68
Min-Hsien Wu8166.30
Rong Long900.34
Junbo Wang105416.41
Jian Chen112315.42