Human Heart| American scientists have succeeded in creating various parts of the human heart through living cells and proteins through a 3-D bio-printer and its new technology. Excited scientists claim that in the near future, the entire human heart will be formed. This claim has been made in the paper published in the American Science journal of Carnegie Mellon University.
Paper's co-author Adam Fenberg said that we created the valve of the heart through the 3-D print from collagen which works. Collagen protein is the element found in almost every part of the body and in the structure of the cell. Along with the heart, all the organs of the human body are made up of certain cells. These bind a biologic structure of the protein, which is called the extra cellular matrix (ECM). These include collagen prominently. The ECM itself gives such biochemical messages to the cells, through which cells perform their assigned work to various organs.
Complex Structure Problem-
It was not possible to make complex structures like ECM with collagen by 3D printing. Actually, collagen is liquid. There is a formation of elastical organ with living cells and collagan after MRI of the heart which is not useful. In this paper, the new technique 'Freeform Reversible Embedding of Suspended Hydrogels' (Fresh) was introduced. In this, collagen is placed in the layer rate layer at the time of 3D printing. The surface of the gel is applied between each layer. The gel flows out of the structure by melting in the temperature of the normal atmosphere. Collagen takes the form of concrete heart without any damage. Many other elements can be molded in 3D prints with this technique. According to the Professor of Biomedical Engineering at the University Mr.Adam Feinberg some more studies on fresh techniques are to be done. This technique can be used to heal the wounds and make the organs that have become useless.
The World Needs 01 Million Hearts-
According to the report, there are need of around 01 million heart transplants in the world every year. Most of the numbers do not even figure in the transplant waiting list made in their country. There are four thousand patients waiting list in the USA. According to the National Organ Transplant Program in India, about 50 thousand patients need a heart transplant, but only 10 to 15 transplants are being done in a year. In such a situation, artificial limbs can improve the condition.The End-
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