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Concept of bio 3D printing

(Summary description)With the development of biological 3D printing, the concept is constantly expanding and expanding. At present, biological 3D printing can be divided into broad and narrow concepts:
In a broad sense, 3D printing that directly serves the field of biomedicine can be regarded as the category of biological 3D printing; in a narrow sense, the process of manipulating the active structure of cell-containing biological ink is usually called biological 3D printing.

Concept of bio 3D printing

(Summary description)With the development of biological 3D printing, the concept is constantly expanding and expanding. At present, biological 3D printing can be divided into broad and narrow concepts:
In a broad sense, 3D printing that directly serves the field of biomedicine can be regarded as the category of biological 3D printing; in a narrow sense, the process of manipulating the active structure of cell-containing biological ink is usually called biological 3D printing.

Information
With the development of biological 3D printing, the concept is constantly expanding and expanding. At present, biological 3D printing can be divided into broad and narrow concepts:
In a broad sense, 3D printing that directly serves the field of biomedicine can be regarded as the category of biological 3D printing; in a narrow sense, the process of manipulating the active structure of cell-containing biological ink is usually called biological 3D printing.
Broadly speaking, biological 3D printing can be roughly divided into 4 levels:
The first level is to manufacture structures without biocompatibility requirements, such as 3D printing that is currently widely used in surgical path planning products;
The second level is to manufacture non-degradable products with biocompatibility requirements, such as Chin alloy joints, silicone prosthesis for repairing defects, etc .;
The third level is to manufacture biodegradable products that require biocompatibility, such as activated ceramic bones and degradable vascular stents.
The fourth level is narrow biological 3D printing, that is, manipulating living cells to construct bionic three-dimensional tissues, such as printing cell models, liver units, skin, and blood vessels for drug screening and mechanism research. The process of biological 3D printing that manipulates cells can also be called cell printing (cellprint-ing). In a narrow sense, cell printing and biological 3D printing can be interchanged.
In addition, sometimes the concept of organ printing (or-ganprinting) is also seen. Generally, this concept can also be considered to be interchangeable with cell printing and narrow biological 3D printing. On Wikipedia, the biological 3D printing entry adopts a narrow concept, that is, the process of manipulating cells to construct a bionic three-dimensional tissue. There are many reports on the research of the first 3 levels of biological 3D printing. The research team has also done some work and proposed some new printing processes to solve the problems such as prosthesis for repairing the defect of the collar surface of the brain aneurysm simulator. Problems with printing of biodegradable artificial bone. The first three levels do not involve the process of manipulating living cells, and their manufacturing process is not significantly different from the non-biological 3D printing process, so this review focuses on reviewing the research progress of biological 3D printing in a narrow sense, that is, cell printing, and combining the research discussions of the research group The challenges faced by bio 3D printing and the future development direction.
 

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