Nano-textured fluidic biochip as biological filter for selective survival of neuronal cells

Hsieh Cheng Han, Hung Chun Lo, Chia Yu Wu, Kuei Hsien Chen, Li Chyong Chen, Keng Liang Ou, Hossein Hosseinkhani

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This is an innovative study to engineer biological filter to evaluate the effect of template surface structure and physiochemical properties that can be used for wide variety of applications in biological, health care as well as environmental protection. Specifically, planar silicon (Si) wafer and arrayed Si nano-tips (SiNT) templates were fabricated and coated with gold for various lengths of time to study the effect of surface charge, surface roughness, and hydrophilicity on biological activity of rat pheochromocytoma cell lines PC12. The initial growth and proliferation of PC12 cells on Si and SiNT templates showed an antipathy for the ultra-sharp SiNTs templates. In contrast, the same cells demonstrated a preferable adherence to and proliferation on planar Si templates, resulting in higher cell densities by three orders of magnitude than those on SiNT templates. It is hypothesized that SiNTs array does generate nano-fluidic effect such that the effective contact region for aqueous solution on SiNTs is lower than that on planar Si templates, thus decreasing adsorbable area for cell viability and survival. Moreover, the effect of the gold coating on cell number density was analyzed in terms of the surface roughness, zeta potential and wetting properties of the templates. It was determined that surface charge, as measured by the zeta potential, strongly correlated with the trend observed in the surface cell density, whereas no such correlation was observed for surface roughness or wetting properties in the ranges of our experiment conditions.

Original languageEnglish
Pages (from-to)2015-2023
Number of pages9
JournalJournal of Biomedical Materials Research - Part A
Volume103
Issue number6
DOIs
Publication statusPublished - Jun 1 2015

Fingerprint

Biochips
Fluidics
Silicon
Cells
Surface roughness
Zeta potential
Surface charge
Wetting
Gold coatings
Hydrophilicity
Environmental protection
Bioactivity
Silicon wafers
Health care
Surface structure
Gold
Contacts (fluid mechanics)
Rats
Engineers
Experiments

Keywords

  • biochip
  • colloidal forces
  • in vitro
  • nano-fluidic transport
  • nanostructure
  • silicon

ASJC Scopus subject areas

  • Biomedical Engineering
  • Biomaterials
  • Ceramics and Composites
  • Metals and Alloys

Cite this

Nano-textured fluidic biochip as biological filter for selective survival of neuronal cells. / Han, Hsieh Cheng; Lo, Hung Chun; Wu, Chia Yu; Chen, Kuei Hsien; Chen, Li Chyong; Ou, Keng Liang; Hosseinkhani, Hossein.

In: Journal of Biomedical Materials Research - Part A, Vol. 103, No. 6, 01.06.2015, p. 2015-2023.

Research output: Contribution to journalArticle

Han, Hsieh Cheng ; Lo, Hung Chun ; Wu, Chia Yu ; Chen, Kuei Hsien ; Chen, Li Chyong ; Ou, Keng Liang ; Hosseinkhani, Hossein. / Nano-textured fluidic biochip as biological filter for selective survival of neuronal cells. In: Journal of Biomedical Materials Research - Part A. 2015 ; Vol. 103, No. 6. pp. 2015-2023.
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