Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 14913-14919 |
| Number of pages | 7 |
| Journal | Langmuir |
| Volume | 35 |
| Issue number | 46 |
| DOIs | |
| Publication status | Published - 19 Nov 2019 |
Funding
This research was supported by the Dutch Technology Foundation STW (Grant No. 13567), which is part of The Netherlands Organization for Scientific Research (NWO) and which is partly funded by the Ministry of Economic Affairs, as well as by The Netherlands Center for Multiscale Catalytic Energy Conversion (MCEC), an NWO Gravitation programme funded by the Ministry of Education, Culture and Science of the government of The Netherlands. We thank Chris Schneijdenberg for technical assistance, Wessel Vlug for providing the silica particles with fluorescent cores, and Fabian Hagemans and Ramakrishna Kotni for useful discussions.