Mechanistic Insights into the Structural Stability of Collagen-Containing Biomaterials Such as Bones and Cartilage.
Mechanistic Insights into the Structural Stability of Collagen-Containing Biomaterials Such as Bones and Cartilage.
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DOI:
10.1021/acs.jpcb.1c01431
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发表时间:
2021-05-13
期刊:
影响因子:
--
通讯作者:
Sinha N
中科院分区:
文献类型:
--
作者:
Tiwari N;Wi S;Mentink-Vigier F;Sinha N
Structural stability of various collagen containing biomaterials such as bones and cartilage is still a mystery. Despite spectroscopic development of several decades, the detailed mechanism of collagen interaction with citrate in bones and glycosaminoglycans (GAGS) in cartilage extracellular matrix (ECM) in its native state is unobservable. We present a significant advancement to probe the collagen interactions with citrate and GAGSin ECM of native bone and cartilage along with specific/non-specific interactions inside collagen assembly at the nanoscopic level through natural abundance dynamic nuclear polarization (DNP) based solid-state nuclear magnetic resonance (ssNMR) spectroscopy. The detected molecular level interactions between citrate – collagen and glycosaminoglycan (GAGs) - collagen inside the native bone and cartilage matrix and other backbone and side-chain interactions in the collagen assembly are responsible for the structural stability and other biomechanical properties of these important class of biomaterial.
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