Interaction of B50 rat hippocampal cells with stain-etched porous silicon

Sapelkin A. V., Bayliss S. C., Unal B., Charalambou A.

Biomaterials, cilt.27, sa.6, ss.842-846, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 6
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.biomaterials.2005.06.023
  • Dergi Adı: Biomaterials
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.842-846
  • Anahtar Kelimeler: B50, Microstructure, Neural cell, Neural network, SEM, Surface topography
  • İstanbul Gelişim Üniversitesi Adresli: Hayır

Özet

We present a scanning electron microscopy study of interaction of porous silicon prepared by stain etching with rat hippocampal neurons (B50, immortalised line). Porous Si has been prepared by stain etching both from crystalline and polycrystalline substrates. Two types of patterns have been examined: (i) 100 μm square pads separated by 100 μm of untreated space and (ii) 30 μm and 100 μm stripes separated by 300 μm of untreated surface. In all cases cells show clear preference in adhesion to porous Si over untreated surface. We observe a much closer attachment of the cell to the surface of porous Si than has been anticipated before with the gap between a cell and porous surface of no more than 20 nm. This study demonstrates the influence of surface topology on proliferation of a neuron network, thus suggesting that a degree of control over cell growth pattern can be achieved using porous material alone. We show that the network pattern on porous Si is influenced by a single neuron response to the surface nature and topology. © 2005 Elsevier Ltd. All rights reserved.