Cell response to nanocrystallized metallic substrates obtained through severe plastic deformation

Area of Science:

• Materials Science
• Biomedical Engineering
• Cell Biology

Background:

• Cell-substrate interactions critically influence cell behavior and function.
• Material grain structure, particularly grain size, is a significant biophysical signal affecting cellular activities.
• Severe plastic deformation (SPD) is a technique used to refine grain size, imparting novel mechanical properties to materials.

Purpose of the Study:

• To review recent advances in biomedical applications of SPD techniques.
• To highlight the impact of nano/ultra-fine grain sizes on cell-substrate interactions.
• To evaluate the potential of SPD-processed materials for biomedical implants.

Main Methods:

• Discussion of various SPD techniques and their underlying mechanisms.
• Analysis of studies investigating the effects of different substrate grain sizes on cell activities.
• Inclusion of in vivo study results.

Main Results:

• SPD techniques effectively produce materials with nano/ultra-fine grain sizes.
• Substrate grain size significantly influences cell morphology, adhesion, proliferation, and differentiation.
• SPD-processed materials show promise for biomedical implant applications.

Conclusions:

• SPD offers a pathway to engineer advanced materials with tailored grain structures for improved bio-implant performance.
• Understanding cell-substrate interactions at the nanoscale is crucial for designing next-generation biomaterials.
• Further research is needed to address the advantages and challenges of SPD for multifunctional bio-implant development.