Materials · Cell culture · Regeneration
Nanomaterials for regenerative medicine
Cells need a place to grow. We design fine-fiber materials that help us understand—and improve—the surfaces used to culture stem cells.
Why it matters
Inside tissues, cells do not sit on a flat plastic surface. They attach to an extracellular matrix: a network of molecules that provides support and helps shape their behavior. Nanoengineering lets us create fine structures that interact with cells at this local scale. In this direction, the material is a culture scaffold—not a carrier that delivers a medicine. We study how its structure and chemistry affect stem-cell growth.
How we study it
- Design a surface at two scalesCombine a mechanically supportive microfibrous sheet with much finer fibers that cells can contact. Changing the architecture gives us a way to investigate both handling and cell behavior.
- Test the cells, not just the materialMeasure attachment and growth, and check whether stem cells retain the characteristics we want. A material that is easy to manufacture still needs careful biological evaluation.
- Compare material and culture conditionsLink fiber-based culture surfaces with controlled microfluidic environments. Comparing combinations helps identify effects that would be difficult to see by changing only one factor.
Published examples
Nano-on-micro fibrous extracellular matrices for scalable expansion of human ES/iPS cells
The Fiber-on-Fiber approach combined a supportive microfibrous sheet with gelatin nanofibers. Human pluripotent stem cells expanded while retaining key stem-cell characteristics in the tested cultures. This was a culture-material study, not evidence of successful transplantation.
Microfluidic-Nanofiber Hybrid Array for Screening of Cellular Microenvironments
Combining nanofiber surfaces and small fluid channels enabled comparisons of material composition, density, and stem-cell responses. It connects materials research with the study of cell environments.