In biology, a subculture is a new cell or microbiological culture made by transferring some or all cells from a previous culture to fresh growth medium. This action is called subculturing or passaging the cells. Subculture is used to prolong the life and expand the number of cells or microorganisms in the culture. Secondary cell culture refers to a cell line or sub-clone sub-cultured from primary cell culture.
Primary cell culture refers to the growing and maintaining of the selected cell type excised from a normal parental tissue.Primary cell culture is the ex vivo culture of cells freshly obtained from a multicellular organism, as opposed to the culture of immortalized cell lines.
The separation principle of HPLC is based on the distribution of the analyte (sample) between a mobile phase (eluent) and a stationary phase (packing material of the column). Depending on the chemical structure of the analyte, the molecules are retarded while passing the stationary phase.
Electrosurgical generators are the devices that use high-frequency (HF) electrical currents to cut or coagulate tissue during surgery, known as electrosurgery. It consists of an electrosurgical generator that transforms electrical energy into HF current.
September 29, 2021 is the 22nd World Heart Day.This year's theme is "use heart to connect",emphasizing connection and contact,connecting with heart,and communicating with heart.In the special period of the COVID-19 pandemic,World Heart Alliance proposes to connect with heart, calling on people around the world to communicate with heart to heart,and protect the heart health together.Let's start from the heart.Heal Force will stay with you to protect heart health together.
Heal Force has always been adhereing to the original intention of high standards and high requirements to protect the health of pregnant mothers and new lives! After reading the article, you will have a certain understanding of the fetal development.
Surgical positioning is the practice of placing a patient in a particular physical position during surgery. The goal in selecting and adjusting a particular surgical position is to maintain the patient's safety while allowing access to the surgical site. Often a patient must be placed in an unnatural position to gain access to the surgical site.
EDI is a new type of water treatment method that combines electrodialysis and ion exchange.EDI is a replacement technology for the traditional ion exchange mixed bed process. The emergence of EDI is an advancement in water treatment technology, marking that the water treatment industry has entered the ranks of the green industry.
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