Grafting cell fibers

Fig. 48. Grafting cell fibers. (A) Grafting undecylenic add molecules onto cellulose fibers. (B) Co-reticulation of silicone oligomers and cellulose grafted onto undecylenic acid molecules.

Emgard-Mattson M, Karlsson J, Nakao N, Brundin P (1997) Addition of lateral ganglionic eminence to rat mesencephalic grafts affects fiber outgrowth but does not enhance function. Cell Transplant 6 277-286. 

Ikegami, T., Nakamura, M., Yamane, J., Katoh, H., Okada, S., Iwanami, A., Watanabe, K., Ishii, K., Kato, F., Fujita, H., Takahashi, T., Okano, H.J., Toyama, Y., Okano, H., 2005. Chondroitase ABC combined with neural stem/progenitor cell transplantation enhances graft cell migration and outgrowth of growth-associated protein-43-positive fibers after rat spinal cord injury. Eur. J. Neurosci. 22 (12), 3036—3046. 

Hydroxyapatite constitutes -65% of human bone by weight. There is another 18% collagen fiber which makes the bone flexible and more durable. Then, there is -10% genetic tissue (mostly living bone cells). This tissue carries the genetic code of the person or animal and unless it is in a denatured form, which also kills the bone, it is likely to be rejected in the body as a bone graft. Therefore, it is impossible to successfully implant living bone even from closely related donors. The remainder of bone is composed of capillaries, nerves, and so on. 

Nakahara, Y. Dyeing of cuprammonium staple fiber grafted with glycidyl methacrylate. J. Soc. Text, and Cell. Ind. (Japan) 20, 319 (1964). 

Triarhou LC, Brundin P, Doucet G, Bjorklund A, Ghetti B (1988a) Reafferentation of mutant striatum by dopamine fibers originating in grafts of nigral cell suspensions. Anat Rec 220. 

Not all copolymers which are produced by step-growth processes are random in nature. Block copolymers are also of major interest. An example of the synthesis of elastic polyurethane fibers was given in Section 1.5.4. Block and graft copolymers of polysiloxane-poly(alkylenc ethers) with segments like5-9 are used as surfactants in the production of polyurethane foams with uniform cell sizes. 

An up-date of the status of EB curing of carbon fiber composites was presented by A. Berejka. Developments proven successful for aerospace applications are now being seriously scrutinized for automotive use. The diversity of proven uses of radiation grafting for uses in batteries, porous film and non-woven filters, and release coated films and papers was also presented. Opportunities for use of grafting in biomedical applications, composites technology, and fuel cell membrane development were also discussed. 

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