Should organ donation be mandatory pros and cons - idea brilliant
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#7 Ill founded excuses to NOT become an organ and tissue donorTissue engineering is a biomedical engineering discipline that uses a combination of cellsengineeringmaterials methods, and suitable biochemical and physicochemical factors to restore, maintain, improve, or replace different types of biological tissues.
Tissue engineering often involves the use of cells placed on tissue scaffolds in the formation of new viable tissue for a medical purpose but is not limited to applications involving cells and tissue scaffolds. While it was once categorized as a sub-field of biomaterialshaving grown in scope and importance it can be considered as a field in its own. While most definitions of tissue engineering cover a broad range of applications, in practice the term is closely associated with applications that repair or replace portions of or whole tissues i.
Often, the tissues involved require certain mechanical and structural properties for proper functioning. The term has also been applied to efforts to perform specific biochemical functions using cells within an artificially-created support system e.
The term regenerative medicine is often used synonymously with tissue engineering, although those involved in regenerative medicine place more emphasis on the use of stem cells or progenitor cells to produce tissues. A commonly applied definition of tissue engineering, as stated by Langer [2] and Vacanti, [3] is "an interdisciplinary field that applies the principles of engineering and life sciences toward the development of biological substitutes that restore, maintain, or improve [Biological tissue] function or a whole organ". Tissue engineering has also been defined as "understanding the principles of tissue growth, and applying this to produce functional replacement tissue for clinical use".
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Developments in the multidisciplinary field of tissue engineering have yielded a novel set of tissue replacement parts and implementation strategies. Scientific advances in biomaterialsstem cells, growth and differentiation factors, and biomimetic environments have created unique opportunities to fabricate or improve existing tissues in the laboratory from combinations of engineered extracellular matrices "scaffolds"cells, and biologically active molecules. Among the major challenges now facing tissue engineering is the need for more complex functionality, biomechanical stability, and vascularization in laboratory-grown tissues destined for transplantation. Inthe NSF published a report entitled "The Emergence of Tissue Engineering as a College essay failure Field", which gives a thorough description of the history of this field.
The historic origins of the term are unclear as the definition of the word has changed throughout the past decades. The term first appeared in a publication that described the organization of an endothelium-like membrane on the surface of a long-implanted, synthetic ophthalmic prosthesis [8].
The first modern use of the term as recognized today was in by the researcher, physiologist and bioengineer Y. C Fung of the Engineering Research Center. He proposed the joining of the terms tissue in reference to the fundamental relationship between cells and organs and engineering in reference to the field of modification of said tissues. The term was officially adopted in A rudimentary understanding of the inner workings of human tissues may date back further than most would expect.
As early as the Neolithic period, sutures were being used to close wounds and aid in healing. Later on, societies such as ancient Egypt developed better materials for sewing up wounds such as linen sutures. Around BC in ancient India, skin grafts were developed by cutting skin from the buttock and suturing it to wound sites in the ear, nose, or lips. Ancient Egyptians often would graft skin from corpses onto living humans and even attempted to use honey as a type of antibiotic and grease orgn a protective barrier to prevent infection.]
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