What type of protein are keratin ?
Answers
- Keratin is a fibrous protein which can be classified into two groups: soft keratin and hard keratin. It forms the bulk of cytoplasmic epithelia and epidermal structures. Keratin is abundant in animal hair, nails, wool, horns, and other features
Materials are mainly obtained from keratin isolated from wool and human hair [8]. The main source is wool, however, human-derivative keratin is of interest to researchers due to the reduced risk of an immune response. Keratin can be used in the synthesis of scaffolds for long-term cell culture. In hydrogels, keratin allows the formation of porous gel-form materials and creates a suitable environment for cell proliferation. They can be injected into a nerve conduit as a filter to guide nerve regeneration.
Keratin-based materials are characterized by high strength and stability in in vivo conditions. They also accelerate cell regeneration and form compatible scaffolds. Keratin hydrogels can be easily rehydrated, which is desirable for invasive injection in prosthetics [61]. The properties of keratin-based hydrogels with collagen-based hydrogels cross-linked by the same cross-linker as 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide have been compared . It was assumed that keratin-based materials had a higher storage modulus and loss modulus. Also, the mechanical parameters for keratin without cross-linking were several-fold higher than those for cross-linked collagen.
Generally, keratin-based hydrogels have appropriate features for biomedical purposes. Hydrogels obtained from keratin are relatively stable and have good mechanical strength, even without cross-linking modification. Also, the rehydrating methods are fast and easy, and very useful for commercial applications. It is possible to extend the storage of hydrogels by lyophilization. However, further studies of keratin-based hydrogels are needed.
Answer:
2 Keratin. Keratins are a separate family of fibrous structural proteins that make up the main constituents of hair, nails, and hooves of other mammals.
Explanation:
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