Droplet microfuidics for the highly controlled synthesis of branched gold nanoparticles
Sara Abalde-Cela, Patricia Taladriz-Blanco, Marcelo Ganzarolli de Oliveira, Chris Abell
ARTIGO
Inglês
The synthesis of anisotropic metallic nanoparticles (NPs) has been a feld of intense and challenging
research in the past decade. In this communication, we report on the reproducible and highly
controllable synthesis of monodisperse branched gold nanoparticles in a droplet-based... Ver mais The synthesis of anisotropic metallic nanoparticles (NPs) has been a feld of intense and challenging
research in the past decade. In this communication, we report on the reproducible and highly
controllable synthesis of monodisperse branched gold nanoparticles in a droplet-based microfuidics
platform. The process has been automated by adapting two diferent bulk synthetic strategies to
microdroplets, acting as microreactors, for NP synthesis: a surfactant-free synthesis and a surfactantassisted synthesis. Microdroplets were generated in two diferent microfuidic devices designed to
accommodate the requirements of both bulk syntheses. The epitaxial growth of AuNSTs inside the
microdroplets allowed for a fne control of reagent mixing and local concentrations during particle
formation. This is the frst time branched gold NPs have been synthesised in a microfuidics platform.
The monodispersity of the product was comparable to the synthesis in bulk, proving the potential
of this technology for the continuous synthesis of high quality anisotropic NPs with improved
reproducibility. Ver menos
research in the past decade. In this communication, we report on the reproducible and highly
controllable synthesis of monodisperse branched gold nanoparticles in a droplet-based... Ver mais The synthesis of anisotropic metallic nanoparticles (NPs) has been a feld of intense and challenging
research in the past decade. In this communication, we report on the reproducible and highly
controllable synthesis of monodisperse branched gold nanoparticles in a droplet-based microfuidics
platform. The process has been automated by adapting two diferent bulk synthetic strategies to
microdroplets, acting as microreactors, for NP synthesis: a surfactant-free synthesis and a surfactantassisted synthesis. Microdroplets were generated in two diferent microfuidic devices designed to
accommodate the requirements of both bulk syntheses. The epitaxial growth of AuNSTs inside the
microdroplets allowed for a fne control of reagent mixing and local concentrations during particle
formation. This is the frst time branched gold NPs have been synthesised in a microfuidics platform.
The monodispersity of the product was comparable to the synthesis in bulk, proving the potential
of this technology for the continuous synthesis of high quality anisotropic NPs with improved
reproducibility. Ver menos
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2015/01685-2; 2016/02414-5
Aberto
Droplet microfuidics for the highly controlled synthesis of branched gold nanoparticles
Sara Abalde-Cela, Patricia Taladriz-Blanco, Marcelo Ganzarolli de Oliveira, Chris Abell
Droplet microfuidics for the highly controlled synthesis of branched gold nanoparticles
Sara Abalde-Cela, Patricia Taladriz-Blanco, Marcelo Ganzarolli de Oliveira, Chris Abell
Fontes
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Scientific reports Vol. 8 (Feb., 2018), n. art. 2440 |