Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 57, Issue 12, Pages 3183-3186Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201800736
Keywords
mesoporous silica; nanoparticles; self-assembly; surface plasmon resonance; tomography
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Funding
- Spanish MINECO [MAT2013-46101R, TEC2017-85376-C2-1-R, TEC2017-85376-C2-2-R]
- European Research Council (ERC) [335078-COLOURATOM]
- European Regional Development Fund (ERDF)
- ERDF
- Galician Regional Government
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A limiting factor of solvent-induced nanoparticle self-assembly is the need for constant sample dilution in assembly/disassembly cycles. Changes in the nanoparticle concentration alter the kinetics of the subsequent assembly process, limiting optical signal recovery. Herein, we show that upon confining hydrophobic nanoparticles in permeable silica nanocapsules, the number of nanoparticles participating in cyclic aggregation remains constant despite bulk changes in solution, leading to highly reproducible plasmon band shifts at different solvent compositions.
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