Randomly oriented, upright SiO2 coated nanorods for reduced adhesion of mammalian cells. Academic Article uri icon


  • Cell interactions with nanostructures are of broad interest because of applications in controlling tissue response to biomedical implants. Here we show that dense and upright SiO2 coated nanorods nearly eliminate cell adhesion in fibroblasts and endothelial cells. The lack of adhesion is not due to a decrease in matrix protein adsorption on the nanostructures, but rather an inability of cells to assemble focal adhesions. Using spatially patterned nanorods, we show that cells display a preference for flat regions of the surface. Our results support a model in which interfering with nanoscale spacing of ligated integrins results in reduced cell adhesion and subsequent cell death. We propose that dense monolayers of nanorods are a promising nanotechnology for preventing mammalian cell fouling of biomaterials.

published proceedings

  • Biomaterials

altmetric score

  • 3

author list (cited authors)

  • Lee, J., Chu, B. H., Chen, K., Ren, F., & Lele, T. P.

citation count

  • 59

complete list of authors

  • Lee, Jiyeon||Chu, Byung Hwan||Chen, Ke-Hung||Ren, Fan||Lele, Tanmay P

publication date

  • September 2009