1. Living cell characteristics: cells with metabolism, reproduction and replication capabilities. For example, blood screening cells, yeast, pollen, sperm platelets, etc. Living cells are also called activated cells.

2. Properties of autologous fat: Absorb excess subcutaneous fat cells from some parts of human body, and then purify the sucked mixture to obtain compound fat particles. Complete granular adipocytes were selected and transplanted to breast, face and other parts that need to be filled with fat to treat flat chest, uneven scales on both sides of breast, superficial fine lines, thin lips bulging into thick lips and so on.

Second, the characteristics are different.

1. Characteristics of living cells: The cell membrane of living cells is a selective membrane, which can protect and block cells and only allow substances to selectively pass through. After cell death, the cell membrane is damaged and the permeability is increased. The common method to identify cell death with trypan blue is to use this characteristic.

2. The characteristics of autologous fat:

(1) Autologous fat is transplanted with its own fat particles. As autologous tissue, its biological characteristics are far superior to any prosthetic material. It is non-toxic and harmless to itself, and will not produce immune reaction and rejection reaction;

(2) Autologous fat transplantation will not cause changes in the endocrine environment of human body, will not cause harm to the breast itself, and will not have adverse effects on later fertility and lactation;

(3) Autologous fat particles are used as filling materials, which are easy to obtain and rich in tissue sources, and are more economical than prostheses.

Extended data:

Autologous fat transplantation is not a new plastic surgery technique. The most common facial defects are dimples, sunken temples, sunken cheeks and deformed scars caused by trauma or emaciation.

Cultured cells need a certain density to grow well under general conditions, so cell counting is necessary. The results are expressed in cells per milliliter. The principle and method of cell counting are the same as those of blood cell counting.

There are always some cells in the cell population that die for various reasons, and the percentage of living cells in the total cells is called cell viability. Generally speaking, cells isolated from tissues should also be examined for their activity to know whether the separation process has damaged the cells. After resuscitation, the activity of cells should also be checked to achieve the effect of thawing and resuscitation.

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