Biomimetic silicification of 3D polyamine-rich scaffolds assembled by direct ink writing
- 1 January 2006
- journal article
- Published by Royal Society of Chemistry (RSC) in Soft Matter
- Vol. 2 (3) , 205-209
- https://doi.org/10.1039/b517278k
Abstract
We report a method for creating synthetic diatom frustules via the biomimetic silicification of polyamine-rich scaffolds assembled by direct ink writing (DIW) [G. M. Gratson, M. Xu and J. A. Lewis, Nature, 2004, 428, 386, ]. A concentrated polyamine-rich ink is robotically deposited in a complex 3D pattern that mimics the shape of naturally occurring diatom frustules, Triceratium favus Ehrenberg (triangular-shaped) and Arachnoidiscus ehrenbergii (web-shaped). Upon exposing these scaffolds to silicic acid under ambient conditions, silica formation occurs in a shape-preserving fashion. Our method yields 3D inorganic–organic hybrids structures that may find potential application as templates for photonic materials, novel membranes, or catalyst supports.Keywords
This publication has 17 references indexed in Scilit:
- Phase Behavior and Rheological Properties of Polyelectrolyte Inks for Direct-Write AssemblyLangmuir, 2004
- Towards an understanding of (bio)silicification: the role of amino acids and lysine oligomers in silicificationJournal of Materials Chemistry, 2004
- Microperiodic structures: Direct writing of three-dimensional websNature, 2004
- Self-Assembly of Highly Phosphorylated Silaffins and Their Function in Biosilica MorphogenesisScience, 2002
- Effect of process parameters on the polymer mediated synthesis of silica at neutral pHSilicon Chemistry, 2002
- Ultrafast holographic nanopatterning of biocatalytically formed silicaNature, 2001
- Species-specific polyamines from diatoms control silica morphologyProceedings of the National Academy of Sciences, 2000
- The Power of Direct WritingScience, 2000
- Biomimetic synthesis of ordered silica structures mediated by block copolypeptidesNature, 2000
- A gene family of silicon transportersNature, 1997