Surgical sutures production

N-acylchitosan filaments have been used for surgical suture production [145]. 

Production of both monobasic aluminum diformate, (HO)Al(OOCH)2, and monobasic aluminum formoacetate, (HO)Al(OOCH) (OOCCH ), has declined. One reason could be the ready substitution of inexpensive aluminum formate solution (17—19) for soHd aluminum acetate in formoacetate in most of the common commercial appHcations. Monobasic aluminum formoacetate, mol wt 148.05, mp 350°C, is a fine crystalline powder, prepared from aluminum metal. It is used for fabric water repeUency and in the tanning of coUagen tape for surgical sutures (10). 

No coloi additive oi product containing one can be used in the aiea of the eye, in surgical sutures, or in injections, unless so stated. Also, no colorant can be used to color foods for which standards of identity have been promulgated under Section 401 of the Federal Food, Dmg, and Cosmetic Act, unless the use of added color is authorized by the standard. Colorants without restrictions can be used for coloring foods generally, in amounts consistent with good manufacturing practice. 

No color additive or product containing one can be used iu the area of the eye, iu surgical sutures, or iujections unless so stated. Colorants without restrictions can be used for coloring cosmetics generally, iu amounts consistent with good manufacturiag practice. 

Use Restrictions. There are numerous restrictions on the use of color additives. They caimot, for example, be employed to deceive the pubHc by adding weight or bulk to a product or by hiding quaUty. In addition, special permission is needed to use colorants or products containing them in the area of the eyes, in injections, in surgical sutures, and in foods for which standards of identity have been promulgated under Section 401 of the Eederal Eood, Dmg, and Cosmetic Act. 

Specific details of the sterility testing of parenteral products, ophthalmic and other non-injectable preparations, catgut and surgical sutures will be found in the European Pharmacopoeia. These procedures cannot conveniently be applied to items like surgical dressings and medical devices because they... 

Nexia is already working with the US army to develop bulletproof vests and surgical suture material from spider silk. The team produced soluble recombinant spider silk proteins with molecular masses of 60-140 kDa (Lazaris ef al., 2002). They were able to wet spin the silk monofilaments derived from a concentrated aqueous solution of soluble recombinant spider silk protein under conditions of low shear and coagulation. The spun fibers were water-insoluble with diameters ranging from 10 to 40 pm and exhibited toughness and modulus values comparable to those of native dragline silks but had lower tenacity. They anticipate that the manufacturing processes for these products would be more environmental friendly than the production of conventional plastics. 

Biodegradability is often an important consideration in the development of biomedical, pharmaceutical, and agricultural products for a number of applications. Biodegradable polymers have been formulated for uses such as controlled release and drug-delivery devices, surgical sutures, scaffolds for tissue regeneration, vascular grafts and stents, artificial skin, and orthopedic implants. 

C.K.S. Pillai, C.P. Sharma, Review paper absorbable polymeric surgical sutures chemistry, production, properties, biodegradability, and performance. J. Biomater. Appl. 25 (2010) 291-366, doi 10.1177/0885328210384890. 

Biotextile prostheses and closure products, such as surgical sutures, must have certain physical, mechanical and biological performance characteristics. There is a hierarchy of structure in developing these products, and thus their physical and mechanical performance as well as their chemical stability characteristics can be controlled by engineering the structure at the... 

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