Self-assembled silk fibroin cross-linked with genipin supplements microbial carbonate precipitation in building material.

ABSTRACT: The process of microbially induced carbonate precipitation (MICP) is known to effectively improve engineering properties of building materials and so does silk fibroin (SF). Thus, in this study, an attempt was taken to see the improvement in sand, that is, basic building material coupled with MICP and SF. Urease producing Bacillus megaterium was utilized for MICP in Nutri-Calci medium. To improve the strength of SF itself in bacterial solution, it was cross-linked with genipin at the optimized concentration of 3.12 mg/mL. The Fourier transform infrared (FTIR) spectra confirmed the crosslinking of SF with genipin in bacterial solution. In order to understand how such cross-linking can improve engineering properties, sand moulds of 50 mm³ dimension were prepared that resulted in 3

SUBMITTER: Li J 

PROVIDER: S-EPMC10667665 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature