Fibril and hence the whole muscle. Elastin is a fibrous protein common in various soft tissues, like skin, blood vessels and lung tissue. Each monomer connects with each other, forming a 3D network, with ability to endure over 200% strain before deformation. Keratin is a structural protein mainly found in hair, nails, hooves, horns, quills. Basically keratin is formed by polypeptide chains, which coil into α-helices with sulfur cross-links or bond into β-sheets linked by hydrogen bonding. β-keratin, which is tougher than α-conformation, is more common in birds and reptiles. Resilin is an elastomeric insect protein, consisting of both α-helices and
Artificial nails players resort to artificial nails to prevent wear and chipping of natural nails. Artificial nails Artificial nails, also known as fake nails, false nails, fashion nails, nail enhancements, nail wraps, or nail extensions, are extensions placed over fingernails as fashion accessories. Some artificial nail designs attempt to mimic the appearance of real fingernails as closely as possible, while others may deliberately stray in favor of an artistic look. Unlike most manicures, artificial nails require regular upkeep; it is recommended that they are attended to, on average, every two weeks. Nonetheless, their versatility in terms of shape and design and comparatively