English
With the rapid development of biotechnology, cell culture has become one of the key technologies in the biopharmaceutical field. As a novel cell culture container, cell factories offer significant advantages for large-scale cell culture. This article explores the critical factors and considerations for effective cell culture.
1. Cell Source and Seed Quality
Selecting healthy cells with good growth characteristics is crucial for large-scale cell culture. High-quality cell seeds ensure smooth culture processes and optimal cell growth. Regular cell identification and quality control are essential to maintain genetic stability and functional integrity.
2. Medium Selection and Optimization
Choosing and optimizing the appropriate medium for specific cell types is vital. The medium must meet the nutritional needs of the cells and provide suitable growth factors and pH levels. Experimentally screening and optimizing the medium formulation can enhance cell growth rates and yields while reducing culture costs.
3. Control of Culture Conditions
Optimal temperature, humidity, pH levels, and gas concentrations are necessary for healthy cell growth. Monitoring and adjusting these parameters ensure the best growth conditions for cells. Regular cleaning and maintenance of cell factories are essential to maintain performance and hygiene.
4. Passaging and Expansion
Timely passaging and expansion are necessary when using cell factories for cell culture. These operations must follow aseptic principles to prevent contamination. Appropriate timing and ratios for passaging and expansion should be chosen to maintain cell vitality and growth rates. Ensuring the cleanliness and sterility of reagents and tools is also crucial.
5. Quality Control and Safety
Quality control and safety during the culture process are essential. Regularly checking the performance of cell factories and related equipment, along with necessary disinfection and protective measures, can prevent cross-contamination and microbial contamination. Strengthening laboratory safety management and enhancing the safety awareness of personnel ensure compliance with relevant regulations.
6. Automation and Intelligence
Automation and intelligent technologies are important for achieving efficiency and precision in large-scale cell culture. Automated equipment and control systems can enable the automated operation and management of cell factories, reducing manual intervention and increasing production efficiency.
In summary, cell factories offer significant advantages for large-scale cell culture. By focusing on cell source and seed quality, medium selection and optimization, control of culture conditions, passaging and expansion, quality control and safety, and automation and intelligence, we can enhance cell growth rates and yields, reduce culture costs, and achieve efficient and stable large-scale cell culture.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.