Answer:
Decellularization is the process used in biomedical engineering to isolate the extracellular matrix (ECM) of a tissue from its inhabiting cells, leaving an ECM scaffold of the original tissue, which can be used in artificial organ and tissue regeneration. Organ and tissue transplantation treat a variety of medical problems, ranging from end organ failure to cosmetic surgery. One of the greatest limitations to organ transplantation derives from organ rejection caused by antibodies of the transplant recipient reacting to donor antigens on cell surfaces within the donor organ. Because of unfavorable immune responses, transplant patients suffer a lifetime taking immunosuppressing medication.
Halo, any of a wide range of atmospheric optical phenomena
The promise of jobs and prosperity, among other factors, pulls people to cities. Half of the global population already lives in cities, and by 2050 two-thirds of the world's people are expected to live in urban areas. But in cities two of the most pressing problems facing the world today also come together: poverty and environmental degradation.
The mass of vascularized connective tissue that temporarily forms during wound healing is called the granulation tissue.
Granulation tissue refers to the reddish connective tissue that forms around the surface of the wound during wound healing. It is associated with the formation of the new blood vessels renedering it a red color and delivers the nutrients to the tissue. It is primarily composed of a tissue matrix consisting of different types of cells which are associated with various functions like the formation of the matrix, protect against infection and the formation of the blood vessels which is called the vascularization. Fibroblasts are present in the extracellular matrix of the granulation tissue.
