Abstract
Originalsprog | Engelsk |
---|---|
Tidsskrift | BioTechniques |
Vol/bind | 40 |
Udgave nummer | 3 |
Sider (fra-til) | 368-376 |
Antal sider | 8 |
ISSN | 0736-6205 |
DOI | |
Status | Udgivet - 2006 |
Udgivet eksternt | Ja |
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I: BioTechniques, Bind 40, Nr. 3, 2006, s. 368-376.
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review
}
TY - JOUR
T1 - Transparent polymeric cell culture chip with integrated temperature control and uniform media perfusion
AU - Petronis, Sarunas
AU - Stangegaard, Michael
AU - Christensend, Claus Bo Vöge
AU - Dufva, Hans Martin
PY - 2006
Y1 - 2006
N2 - Modern microfabrication and microfluidic technologies offer new opportunities in the design and fabrication of miniaturized cell culture systems for online monitoring of living cells. We used laser micromachining and thermal bonding to fabricate an optically transparent, low-cost polymeric chip for long-term online cell culture observation under controlled conditions. The chip incorporated a microfluidic flow equalization system, assuring uniform perfusion of the cell culture media throughout the cell culture chamber. The integrated indium-tin-oxide heater and miniature temperature probe linked to an electronic feedback system created steady and spatially uniform thermal conditions with minimal interference to the optical transparency of the chip. The fluidic and thermal performance of the chip was verified by finite element modeling and by operation tests under fluctuating ambient temperature conditions. HeLa cells were cultured for up to 2 weeks within the cell culture chip and monitored using a time-lapse video recording microscopy setup. Cell attachment and spreading was observed during the first 10-20 h (lag phase). After approximately 20 h, cell growth gained exponential character with an estimated doubling time of about 32 h, which is identical to the observed doubling time of cells grown in standard cell culture flasks in a CO2 incubator.
AB - Modern microfabrication and microfluidic technologies offer new opportunities in the design and fabrication of miniaturized cell culture systems for online monitoring of living cells. We used laser micromachining and thermal bonding to fabricate an optically transparent, low-cost polymeric chip for long-term online cell culture observation under controlled conditions. The chip incorporated a microfluidic flow equalization system, assuring uniform perfusion of the cell culture media throughout the cell culture chamber. The integrated indium-tin-oxide heater and miniature temperature probe linked to an electronic feedback system created steady and spatially uniform thermal conditions with minimal interference to the optical transparency of the chip. The fluidic and thermal performance of the chip was verified by finite element modeling and by operation tests under fluctuating ambient temperature conditions. HeLa cells were cultured for up to 2 weeks within the cell culture chip and monitored using a time-lapse video recording microscopy setup. Cell attachment and spreading was observed during the first 10-20 h (lag phase). After approximately 20 h, cell growth gained exponential character with an estimated doubling time of about 32 h, which is identical to the observed doubling time of cells grown in standard cell culture flasks in a CO2 incubator.
U2 - 0736-6205
DO - 0736-6205
M3 - Journal article
SN - 0736-6205
VL - 40
SP - 368
EP - 376
JO - BioTechniques
JF - BioTechniques
IS - 3
ER -