“Spider silk materials remain mechanically stable for a significant time, without increase in brittleness or susceptibility to tearing under physiological conditions, which is a desired material property in neurological-related applications. Bioactive bone grafts with conductive properties for signaling pathways are the latest research direction promising great advancements.”
A lot of testing has been done for several years. For multiple biomedical applications
“Preliminary research results and tissue engineering examples with silk-based materials showed no inflammatory reactions, but in vivo studies of spider silk-based materials remain limited.”
Limited because they can’t get their hands on enough spider silk. That limitation is ending as we speak.