3D nanostructural analysis of silk fibroin and recombinant spidroin 1 scaffolds by scanning probe nanotomography

Abstract

We use serial section scanning probe nanotomography to study the 3D structure, nanoporosity and pore interconnectivity of biocompatible scaffolds made of fibroin and recombinant spidroin 1 (rS1/9). Significant nanoporosity (24%) and pore percolation is detected for rS1/9 scaffolds. It is assumed to contribute to higher in vivo tissue regeneration efficiency of rS1/9 scaffolds.