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This manuscript provides an overview of the recent developments regarding micro and nanotechnologies and their applications in tissue engineering (TE). Micro and nanotechnologies have been increasingly recognized as powerful tools for designing advanced TE strategies, both as production methods and as analysis tools. These technologies can be used to generate scaffolds with enhanced functionality...
Tissue engineering combines our knowledge of medicine, life sciences, and engineering, and biomimetics within tissue engineering is employed in scaffold design, by both mimicking and improving upon the extracellular matrix structure and chemistry. The current generation of biomaterials for tissue engineering aims to influence cellular behavior through various means, such as scaffold design,...
Tissue engineering is an interdisciplinary field aimed at the application of the principles and methods of engineering and life sciences toward the fundamental understanding of structure–function relationships in normal and pathological mammalian tissues and the development of biological substitutes to restore, maintain, or improve tissue functions [8, 38, 56, 57, 78, 111]. Typically, this involves...
Pluripotent human stem cells, including embryonic stem (ES) cells and induced pluripotent stem (iPS) cells, hold tremendous promise as a source of progenitor cells and terminally differentiated cells in tissue engineering and regenerative medicine applications. Pluripotent stem cells are capable of unlimited self-renewal and have the ability to differentiate to clinically relevant cell types in each...
Basic and clinical research on adult stem cells is progressing rapidly. New technology that can generate iPS (induced pluripotent stem cells) cells from various types of tissue may completely change the stem cell world and regenerative medicine. In terms of clinical applications, both bone marrow and skin are very attractive sources of adult stem cells because they are highly accessible and the procedures...
Multiple tissues can serve as a source of adult or somatic stem cells. Some of these tissues are available at only one point in the lifecycle, such as the umbilical cord, Wharton’s jelly, and placenta. In contrast, others are available throughout life and these include adipose tissue, bone marrow, and skeletal muscle. This chapter focuses on the latter three tissues due to their availability and utility...
Stem cells are defined as undifferentiated cells that have the capacity to self-renew and to differentiate into various mature cells at a single cell level [118]. Stem cells support normal embryogenesis and postnatal life. Stem cells serve to renew tissue throughout an individual’s postnatal life by replacing the cells that are lost owing to everyday wear and tear in our bodies. Bone marrow contains...
In the last decade, tissue engineering has attracted a considerable amount of attention in medical research. Obviously, tissue-engineered constructs need to be tested for their safety and efficacy before they can be used in the daily clinic. At present, animal models offer the best possibility to do so. Each medical specialty favors its own specific model to test tissue-engineered constructs. This...
Cell-based tissue engineering efforts, involving the incorporation of primitive (e.g., undifferentiated, pluripotent, stem) cells into biomaterial scaffolds, represent a significant research thrust in the field of regenerative medicine [7, 55, 65, 77]. The ability for these engineered tissues to regenerate functional tissues or organs hinges on the ability of the cellular component to differentiate,...
A variety of bioreactor designs exist today as a result of previous efforts by engineers and researchers to construct optimal systems for a particular tissue engineering application. The primary purpose of any bioreactor is to provide a sterile cell culture environment that can be tightly controlled. A bioreactor can be as simple as a petri dish and as complex as an automatically controlled, cyclically...
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