Large scale dielectrophoretic construction of biofilms using textile technology.
Arrays of microelectrodes for AC electrokinetic experiments were fabricated by weaving together stainless steel wires (weft) and flexible polyester yarn (warp) in a plain weave pattern. The cloth produced can be used to collect cells in low conductivity media by dielectrophoresis (DEP). The construction of model biofilms consisting of a yeast layer on top of a layer of M. luteus is demonstrated, using polyethylenimine (PEI) as the flocculating agent. This technique offers an alternative to the formation of biofilms at microelectrodes made by photolithography, and would allow the construction of biofilms with defined internal architectures by DEP at much larger scales than was possible previously. Furthermore, the flexibility of the cloth would also allow it to be distorted or folded into various shapes.
Abidin
Zurina Z
ZZ
School of Chemical Engineering and Analytical Science, The University of Manchester, Sackville Street, P.O. Box 88, Manchester, M60 1QD, United Kingdom.
Downes
Les
L
Markx
Gerard H
GH
D001672:Biocompatible Materials / Q000138:chemical synthesis*; D018441:Biofilms / Q000254:growth & development*; D008422:Materials Testing; D016982:Micrococcus luteus / Q000254:growth & development*; D008839:Microelectrodes; D011091:Polyesters; D012441:Saccharomyces cerevisiae / Q000254:growth & development*; D013232:Steel; D013784:Textiles / Q000382:microbiology*
D001672:Biocompatible Materials; D011091:Polyesters; D013232:Steel