Bioprinting is a type of 3d printing that uses cells and other vital materials in the form of inks to manufacture bio-structures. Printed materials can be used to repair damaged organs, cells, and tissues in the human body. in the future; Bioprinting is expected to build entire organs from scratch, revolutionizing Bioprinting.
Materials That Can Stand Printed
The researchers studied the possibility of printing several cells, including stem cells, muscle cells and endothelial cells. However, several factors indicate whether the material used can exist published.
First, biological materials must be biocompatible with the materials in the ink and printer itself. In addition, the mechanical properties of the printed structure and the time it takes for the member or fabric to grow fully affect the process.
vital links can stand divided into two types, as follows:
Water-based gels or hydrogels act as three-dimensional structures, as cells can grow inside them. Water gels containing cells exist printed in specific forms, and the polymers in the water gel stand tied together so that the printed gel becomes stronger.
These polymers can be obtained from nature or by manufacturing them, and in both cases must correspond to cells. Cell totals can automatically merge to produce tissue after printing.
3d Bioprinting Mechanism
Bioprinting is similar in many properties to traditional 3d printing. Bioprinting is generally divided into the following steps:
Primary treatment: a 3d model based on a digital reconfiguration of the member or fabric to existing print. Images used in reconfiguration can be obtained either without surgical intervention such as MRI or by surgical intervention through a series of 2d x-ray slides.
Treatment: the organ or fabric stands printed based on the 3d model taken from the initial processing phase. As in other types of 3d printing, the materials used stand added together to publish the intended.
Final process: procedures exist needed to convert printed materials into functional organs or tissues. These procedures may include placing the printed organ in a private room that helps cells grow quickly and adequately.
Types Of Bio Printers
Like other types of 3d printing, bio-inks can exist printed in many different ways. Each method has its advantages and disadvantages.
These printers exist inexpensive compared to other types. But they exist limited to certain kinds of bio-viscosity inks and therefore print a few types of materials.
Laser-assisted Bioprinting: lasers move cells from the solution to the surface with high accuracy. The laser heats part of the solution, creating a cavity in the air and pushing the cells toward the surface.
Because this method does not require small openings such as inkjet printing, high viscosity materials can exist used that cannot easily seep through openings. Laser printing, therefore, allows the printing of high-resolution materials. However, heat from the laser can damage the cells to exist printed. Also, it isn’t easy to upgrade this technique to print structures more quickly.
Bioprinting using electronic apprenticeship and electrical yarn: using electric fields to create drops or fibres, this technique reaches a high degree of accuracy that can get to the nanometer level. But it depends on high voltage, which is unsafe for cells.
Due to the high accuracy of the biometric structures resulting from printing, this technique exists often used in many biomedical applications.
The researchers used Bioprinting to insert cells that help repair the heart after a heart attack and place cells in the affected skin and cartilage. Bioprinting existed used to make heart valves for use for patients with heart disease and build bone and muscle tissue and help repair nerves.
Although we need more work to determine how to get better clinical results, research has shown that Bioprinting can exist used to regenerate tissue during surgery and after injuries. In the future, Bioprinting can allow complete organs such as liver and heart to exist created from scratch and used for transplants.
In addition to 3d Bioprinting, a group of scientists looked into the possibility of using the 4d printer in Bioprinting. This technique takes into account the fourth dimension, which is time.
Dynamic 4d printing is based on the idea that printed 3d structures can continue to evolve even after printing. For example, printed forms may change their shape or function if exposed to the correct catalyst, such as heat.
This technique can exist used in some areas of biomedicine, such as vascular manufacturing, taking advantage of contractions and constrictions found in some biological systems.
The Future Of Bioprinting
although Bioprinting can help save many lives, it faces many challenges. For example, printed structures can exist weak and unable to maintain their shape after standing transferred to the body. In addition, the composition of organs and tissues is very complex. It contains many different cells arranged with high accuracy. And is sometimes tricky for current printing techniques to imitate this intricate pattern.
Finally, current techniques exist limited to certain materials and have a limited degree of viscosity and accuracy. So can every method that can somehow cause cell damage. But as researchers continue to develop Bioprinting, these challenges will one day exist solved.
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