Design and fabrication of human skin by threedimensional bioprinti release_irqlhulyrzgxjfdj4vqy3y2xcq

Abstract

Skin has an essential role in preserving homeostasis and in maintaining the safety of the human body from outside environment by playing its role as the largest body part of human. The stratified, categorized and complex arrangement of skin gives a physical protection to the body by maintaining and regulate the transportation of metabolites and water off the body. The injuries that can originate after any chemical or physical trauma can cause impairment of skin barrier and its physiological functions.1 In skin injuries, considerable amount of skin can be lost, and it develops extremely critical to replace injury caused impaired skin. Transplants in order to protect the lots of water from body and to save the body from opportunistic pathogens can replace the impaired skin. Skin grafts can also expedite the wound recovery procedure and support and restore the barrier and can maintain the regulatory functions on the site of wound.2,3 Apart from grafts tissue engineered skin plays an exceptionally beneficial role and in vitro stage for the evaluation of skin permeability and adverse inflammation response. The tissue-engineered skin has several advantages in comparison to animal skin by having the major significance by mimicking the skin physiology and easing the ethical concerns of animal use. Additionally, tissue engineered skin models also give the significant insights into the causes of skin diseases, hence, explicate the pathophysiological mechanisms in order to see the progression, and can help in the treatment of skin disease.4,5 It has been seen that numerous tools have become accessible for the tissue engineering and are adopting different novel approaches and technologies, and amongst these 3D bioprinting offers many significant advantages Since it is possible of dispensing live cells, phase changing hydrogels, insoluble factors and maintaining high cell viability in a desired pattern.6
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