A platform for the advanced spatial and temporal control of biomolecules

Andrew L. Hook, Helmut Thissen, Jason P. Hayes, Nicolas H. Voelcker

Research output: Chapter in Book/Report/Conference proceedingConference PaperOtherpeer-review

2 Citations (Scopus)


Manipulating biomolecules at solid/liquid interfaces is important for the development of various biodevices including microarrays. Smart materials that enable both spatial and temporal control of biomolecules by combining switchability with patterned surface chemistry offer unprecedented levels of control of biomolecule manipulation. Such a system has been developed for the microscale spatial control over both DNA and cell growth on highly doped p-type silicon. Surface modification, involving plasma polymerisation of ally lamine and poly(ethlylene glycol) grafting with subsequent laser ablation, led to the production of a patterned surface with dual biomolecule adsorption and desorption properties. On patterned surfaces, preferential electro-stimulated adsorption of DNA to the allylamine plasma polymer surface and subsequent desorption by the application of a negative bias was observed. The ability of this surface to control both DNA and cell attachment in four dimensions has been demonstrated, exemplifying its capacity to be used for complex biological studies such as gene function analysis. This system has been successfully applied to living microarray applications and is an exciting platform for any system incorporating biomolecules.

Original languageEnglish
Title of host publicationSmart Materials IV
Publication statusPublished - 27 Apr 2007
Externally publishedYes
EventSPIE International Symposium on Smart Materials, Nano- and Micro-Smart Systems - Adelaide, Australia
Duration: 11 Dec 200613 Dec 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceSPIE International Symposium on Smart Materials, Nano- and Micro-Smart Systems


  • Laser ablation
  • PEG
  • Plasma polymerisation
  • Surface patterning
  • Transfected cell microarray
  • Transfection efficiency

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