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Parameters
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Media screen for GFP transfection
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Optimize of GFP transfection
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Comparison of transfection method
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Media type
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ProCHO5, Opti-MEM, CHOMACS CD, ProCHO4, UltraCHO, DMEM/F12
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Opti-MEM + CHOMACS CD
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Opti-MEM + CHOMACS CD
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Transfection volume (w/o or w media addition at 5 hpt*)
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5 mL
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12.5 + 12.5 mL
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2.5 + 2.5 mL
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Transfection protocol
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Insitu
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Insitu
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Conventional
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Insitu
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Cells amount
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10 x 106
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62 x 106
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10 x 106
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pEGFP-N1 plasmid pDNA (μg)
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6
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37.5
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5
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6
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Linear PEI 25 Kda (μg)
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30
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187.5
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15
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30
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Scale
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Spin tube®50 bioreactor
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25 mL-Shake flask
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Spin tube ®50 bioreactor
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- *w/o= without and w= with
- Transfection efficiency was monitored at 48 hpt by fluorescence microscope and flow cytometer. Cell count and viability were determined by Cedex analyzer