Details
| Original language | English |
|---|---|
| Pages (from-to) | 44-51 |
| Number of pages | 8 |
| Journal | Journal of Colloid and Interface Science |
| Volume | 321 |
| Issue number | 1 |
| Publication status | Published - 4 Mar 2008 |
Abstract
Microstructured polymer films prepared by photochemical grafting of different polymers were used as restricted reaction areas in silica deposition experiments. Linear and branched poly(alkyleneimines) and poly(allylamine hydrochloride) in pure aqueous or phosphate-containing solutions were used as additives to silica precursor solutions. The silica deposits obtained by spin-coating these solutions onto microstructured polymer films were investigated by scanning electron microscopy and atomic force microscopy. Experiments with poly(alkylene imines) in the silica precursor solution show the deposition of smooth and granular silica structures that closely mimic the natural patterns. The structure formation can be explained by physicochemical processes. Hypotheses that have been made for the natural silification processes can be evaluated on this basis.
Keywords
- Diatoms, Photochemical grafting, Polyamines, Silica deposition, Surface patterning
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Materials Science(all)
- Biomaterials
- Materials Science(all)
- Surfaces, Coatings and Films
- Chemical Engineering(all)
- Colloid and Surface Chemistry
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Journal of Colloid and Interface Science, Vol. 321, No. 1, 04.03.2008, p. 44-51.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Influence of polymeric additives on biomimetic silica deposition on patterned microstructures
AU - Helmecke, Olaf
AU - Hirsch, Alexander
AU - Behrens, Peter
AU - Menzel, Henning
N1 - Funding information: The authors thank Professor A. Waag and M. Karsten (Institute of Semiconductor Technology, Braunschweig University of Technology) for the preparation of the mask, F. Cornelius (Institute of Technical Chemistry, Braunschweig University of Technology) for the polymers provided, and C. Menneking (Institute of Inorganic Chemistry, Leibniz University of Hannover) and A. Scherbarth (Institute of Technical Chemistry, Braunschweig University of Technology) for the SEM measurements. This work was supported in the scope of Priority Research Program 1117, “Principles of Biomineralization,” by the Deutsche Forschungsgemeinschaft (DFG).
PY - 2008/3/4
Y1 - 2008/3/4
N2 - Microstructured polymer films prepared by photochemical grafting of different polymers were used as restricted reaction areas in silica deposition experiments. Linear and branched poly(alkyleneimines) and poly(allylamine hydrochloride) in pure aqueous or phosphate-containing solutions were used as additives to silica precursor solutions. The silica deposits obtained by spin-coating these solutions onto microstructured polymer films were investigated by scanning electron microscopy and atomic force microscopy. Experiments with poly(alkylene imines) in the silica precursor solution show the deposition of smooth and granular silica structures that closely mimic the natural patterns. The structure formation can be explained by physicochemical processes. Hypotheses that have been made for the natural silification processes can be evaluated on this basis.
AB - Microstructured polymer films prepared by photochemical grafting of different polymers were used as restricted reaction areas in silica deposition experiments. Linear and branched poly(alkyleneimines) and poly(allylamine hydrochloride) in pure aqueous or phosphate-containing solutions were used as additives to silica precursor solutions. The silica deposits obtained by spin-coating these solutions onto microstructured polymer films were investigated by scanning electron microscopy and atomic force microscopy. Experiments with poly(alkylene imines) in the silica precursor solution show the deposition of smooth and granular silica structures that closely mimic the natural patterns. The structure formation can be explained by physicochemical processes. Hypotheses that have been made for the natural silification processes can be evaluated on this basis.
KW - Diatoms
KW - Photochemical grafting
KW - Polyamines
KW - Silica deposition
KW - Surface patterning
UR - http://www.scopus.com/inward/record.url?scp=40949162768&partnerID=8YFLogxK
U2 - 10.1016/j.jcis.2008.01.006
DO - 10.1016/j.jcis.2008.01.006
M3 - Article
C2 - 18304567
AN - SCOPUS:40949162768
VL - 321
SP - 44
EP - 51
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
SN - 0021-9797
IS - 1
ER -