Cell Growth Scale Up
Cell Growth Scale Up - Related Videos
11:19
ODELAY: A Large-scale Method for Multi-parameter Quantification of Yeast Growth
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Cited by 4 •
2017
We present a method for quantifying growth phenotypes of individual yeast cells as they grow into colonies on solid media using time-lapse microscopy termed, One-cell Doubling Evaluation of Living Arrays of Yeast (ODELAY). Population heterogeneity of genetically identical cells growing into colonies can be directly observed and quantified.
10:08
Construction and Setup of a Bench-scale Algal Photosynthetic Bioreactor with Temperature, Light, and pH Monitoring for Kinetic Growth Tests
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Cited by 4 •
2017
This paper describes the assembly process and operation of a bench-scale photosynthetic bioreactor that can be used, in conjunction with other methods, to estimate pertinent kinetic growth parameters. This system continuously monitors the pH, light, and temperature using sensors, a data acquisition and control unit, and open-source data acquisition software.
12:08
Multi-scale Analysis of Bacterial Growth Under Stress Treatments
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Cited by 11 •
2019
This protocol allows a time-resolved description of bacterial growth under stress conditions at the single-cell and the cell population levels.
04:42
Micro-scale Engineering for Cell Biology
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2007
08:39
Scale-Up of Mammalian Cell Culture using a New Multilayered Flask
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Cited by 4 •
2011
Cells play an instrumental and increasing role in research, and the discovery and development of new therapeutics. With this increasing need for greater number of cells we need more efficient and effective ways for growing and harvesting attachment dependent cells. A Multilayered flask with the right features can serve this purpose.
FAQs
Inoculum density influences how quickly a culture establishes itself and how consistently it progresses through expansion. A suitable starting population helps maintain cell health while supporting predictable nutrient use and growth. If conditions differ substantially between stages, the culture may show altered growth characteristics or reduced product quality, making inoculum management essential for reproducible scale transitions.
Larger culture volumes can change the availability and distribution of oxygen, nutrients, and other essential conditions. Maintaining appropriate pH and temperature supports cellular activity, while adequate oxygen transfer and nutrient availability help prevent local limitations. Because flask conditions may not translate directly to a bioreactor, these variables require careful control during cell growth scale-up.
Mixing helps distribute nutrients, oxygen, temperature, and pH throughout the culture, but excessive mechanical stress can harm sensitive cells. Scale-up therefore requires balancing effective circulation with acceptable shear stress. This balance affects whether cells retain their expected growth characteristics and whether the expanded culture continues to produce material with consistent quality.
Stepwise expansion allows the culture to adapt progressively while researchers evaluate cell health, growth behavior, and process conditions at each stage. Each transition provides information about whether inoculum density, nutrient availability, oxygen transfer, and other variables remain suitable. This staged approach reduces the risk that a large-volume environment will compromise the culture or product.
The process begins with a healthy small-scale culture, followed by sequential transfers into larger vessels or volumes. At each stage, researchers manage inoculum density and monitor conditions such as nutrient availability, oxygen transfer, pH, temperature, mixing, and shear stress. The culture advances only when its growth and quality remain suitable for the next scale.
Cell growth scale-up supports larger experiments and the production of vaccines, therapeutic proteins, cells, and other bioproducts. It also connects laboratory findings with practical manufacturing needs, where consistent expansion and product quality are important. In tissue engineering, expanded cell populations can help move biological research toward applications requiring more material than a small laboratory culture can provide.