to acknowledge scientific support from Dr I. Lieberwirth and
G. Glaßer in MPI-P for SEM measurement. K.-H. Kim
thanks KOSEF and DAAD for the 2009 Summer Institute
Program.
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next efforts will focus on defining the mechanism of the
binding process and improving the stability.
In a different experiment, we examined the immobilization
of AuNPs onto SSC5SS nanosheets that had been attached to
a glass substrate using a layer-by-layer (LBL) film (Fig. 2c,
ESIw). SSC5SS nanosheets were transferred onto a negatively
charged LBL thin film on a glass substrate, followed by
annealing at 80 1C. After thoroughly rinsing with water, the
glass substrate was immersed into a AuNP colloid solution.
SEM images showed that AuNPs had been immobilized onto
the 2D nanosheets, and only a small portion of AuNPs
were attached to the negatively charged surface (Fig. 2d).
Apparently, discrete islands of AuNP arrays were fabricated
on a substrate, which might be utilized in bioassay devices.
In conclusion, we prepared organic nanosheets having
disulfide functional groups at the surface by self-assembly,
and examined the nanosheets as templates for AuNP arrays in
a second self-assembly process. We hope this report will
stimulate researchers’ interest to fabricate hybrid inorganic–
organic nanostructures using self-organized organic templates
in a biomimetic way.
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This work was supported by the IRTG1404 jointly funded
by DFG and NRF and by DFG (Ze 230/14). The authors wish
ꢀc
This journal is The Royal Society of Chemistry 2010
Chem. Commun., 2010, 46, 5343–5345 | 5345