Mixing and flow-induced nanoprecipitation for morphology control of silk fibroin self-assembly.

ABSTRACT: Tuning silk fibroin nanoparticle morphology using nanoprecipitation for bottom-up manufacture is an unexplored field that has the potential to improve particle performance characteristics. The aim of this work was to use both semi-batch bulk mixing and micro-mixing to modulate silk nanoparticle morphology by controlling the supersaturation and shear rate during nanoprecipitation. At flow rates where the shear rate was below the critical shear rate for silk, increasing the concentration of silk in both bulk and micro-mixing processes resulted in particle populations of increased sphericity, lower size, and lower polydispersity index. At high flow rates, where the critical shear rate was exceeded, the increased supersaturation with increasing concentration was counteracted by increased rates

SUBMITTER: Matthew SAL 

PROVIDER: S-EPMC8982335 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature