Controlling the surface coverage and arrangement of proteins using particle lithography

Johnpeter N. Ngunjiri, Stephanie L. Daniels, Jie Ren Li, Wilson K. Serem, Jayne C. Garno

研究成果: Article同行評審

16 引文 斯高帕斯(Scopus)


Aims: The applicability of particle lithography with monodisperse mesospheres is tested with various proteins to control the surface coverage and dimensions of protein nanopatterns. Methods & Materials: The natural self-assembly of monodisperse spheres provides an efficient, high-throughput route to prepare protein nanopatterns. Mesospheres assemble spontaneously into organized crystalline layers when dried on flat substrates, which supply a structural frame or template to direct the placement of proteins. The template particles are displaced with a simple rinsing step to disclose periodic arrays of protein nanopatterns on surfaces. Results & Discussion: The proteins are attached securely to the surface, forming nanopatterns with a measured thickness of a single layer. The morphology and diameter of the protein nanostructures can be tailored by selecting the diameter of the mesospheres and choosing the protein concentration. Conclusions: Particle lithography is shown to be a practical, highly reproducible method for patterning proteins on surfaces of mice, glass and gold. High-throughput patterning was achieved with ferritin, apoferritin, bovine serum albumin and immunoglobulin-G. Depending on the ratio of proteins to mesospheres, either porous films or ring structures were produced. This approach can be applied for fundamental investigations of protein-binding interactions of biological systems in surface-bound bioassays and biosensor surfaces.

頁(從 - 到)529-541
出版狀態Published - 2008 8月 1

All Science Journal Classification (ASJC) codes

  • 生物工程
  • 醫藥(雜項)
  • 生物醫學工程
  • 材料科學(全部)


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