English
Cell culture is one of the most important techniques in biomedical research, and cell culture flask is a key tool for performing adherent cell culture. In this article, we will introduce the features of this cell culture vessel in detail, including material characteristics, volume size, neck design, etc., to help you better understand this important experimental tool.
I. Material characteristics
Cell culture flasks are usually made of materials with high transparency and good chemical stability, such as polystyrene. This material is non-toxic and harmless to cells and can ensure normal cell growth and division. In addition, it has good sealing performance, which can effectively prevent bacterial or viral contamination.
Second, the volume size
The volume size of cell culture flasks varies according to the experimental needs, commonly used 25cm2, 75cm2, 175cm2 and 225cm. According to the experimental scale and cell growth requirements, you can choose the appropriate volume size. Generally speaking, a larger volume can provide more growth space, which is conducive to cell proliferation and differentiation.
Third, the neck design
The neck design of the bottle is also one of its features. The neck allows for easy addition and removal of cell culture solution, as well as gas exchange. In addition, accessories such as filters or sealing films can be added to the neck to further minimize the risk of contamination.
Four, other features
There are other features such as easy observation of cell growth and suitability for automated cell culture systems. These features make it widely used in adherent cell culture.
To summarize, cell culture flasks have a variety of features, such as material characteristics, volume size, neck design, etc., which provide important technical support for biomedical research.
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.