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Synthesis of robust underwater glues from common proteins via unfolding-aggregating strategy
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Synthesis of robust underwater glues from common proteins via unfolding-aggregating strategy
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Synthesis of robust underwater glues from common proteins via unfolding-aggregating strategy
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Journal Article
Synthesis of robust underwater glues from common proteins via unfolding-aggregating strategy
2023
Overview
Underwater adhesive proteins secreted by organisms greatly inspires the development of underwater glue. However, except for specific proteins such as mussel adhesive protein, barnacle cement proteins, curli protein and their related recombinant proteins, it is believed that abundant common proteins cannot be converted into underwater glue. Here, we demonstrate that unfolded common proteins exhibit high affinity to surfaces and strong internal cohesion via amyloid-like aggregation in water. Using bovine serum albumin (BSA) as a model protein, we obtain a stable unfolded protein by cleaving the disulfide bonds and maintaining the unfolded state by means of stabilizing agents such as trifluoroethanol (TFE) and urea. The diffusion of stabilizing agents into water exposes the hydrophobic residues of an unfolded protein and initiates aggregation of the unfolded protein into a solid block. A robust and stable underwater glue can thus be prepared from tens of common proteins. This strategy deciphers a general code in common proteins to construct robust underwater glue from abundant biomass.
Underwater adhesive proteins greatly inspired the development of underwater glue but except for specific proteins it is believed that abundant common proteins cannot be converted into underwater glue. Here, the authors demonstrate, using bovine serum albumin as model protein, that unfolded common proteins exhibit high affinity to surfaces and strong internal cohesion via amyloid-like aggregation in water.
