Seeded-Growth of Silica Rods from Silica-Coated Particles

Seeded growth of silica rods from colloidal particles has emerged as a facile method to develop novel complex particle structures with hybrid compositions and asymmetrical shapes. However, this seeded-growth technique has been so far limited to colloidal particles of only a few materials. Here, we f...

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Published in:Langmuir 2019-11, Vol.35 (46), p.14913-14919
Main Authors: Hayden, Douglas R, Kennedy, Chris L, Velikov, Krassimir P, van Blaaderen, Alfons, Imhof, Arnout
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Language:English
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cited_by cdi_FETCH-LOGICAL-a486t-d09d222c5799cd05963ea8463736eea68c10d60f01e16462a80731b1579303df3
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container_end_page 14919
container_issue 46
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container_title Langmuir
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creator Hayden, Douglas R
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description Seeded growth of silica rods from colloidal particles has emerged as a facile method to develop novel complex particle structures with hybrid compositions and asymmetrical shapes. However, this seeded-growth technique has been so far limited to colloidal particles of only a few materials. Here, we first develop a general synthesis for the seeded-growth of silica rods from silica particles. We then demonstrate the growth of silica rods from silica-coated particles with three different cores which highlight the generality of this synthesis: fluorescently labeled organo-silica (fluorescein), metallic (Ag), and organic (PS latex). We also demonstrate the assembly of these particles into supraparticles. This general synthesis method can be extended to the growth of silica rods from any colloidal particle which can be coated with silica.
doi_str_mv 10.1021/acs.langmuir.9b02847
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title Seeded-Growth of Silica Rods from Silica-Coated Particles
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