Enabling the synthesis of homogeneous or Janus hairy nanoparticles through surface photoactivation
Razza N, Rizza G, Coulon PE, Didier L, Fadda GC, Voit B, Synytska A, Grutzmacher H, Sangermano M (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 10
Pages Range: 14492-14498
Journal Issue: 30
DOI: 10.1039/c8nr04239j
Abstract
Nanoparticles (NPs) homogeneously covered with polymer chains or with chains of two different polymers segregated in distinct domains ("Janus" particles) possess remarkable features. Their unique colloidal properties can be finely tuned by the grafted polymers while the characteristics of the nano-core remain unaffected. Herein, a simple and robust photochemical approach is reported to synthesize, from 50 nm cores, homogeneous and Janus "hairy" nanoparticles with hydrophilic and amphiphilic properties, respectively. This is achieved by using a surface-anchored bis(acyl)phosphane oxide photoinitiator which allows a spatially controlled surface-initiated photopolymerization at room temperature. Homogeneous and Janus hairy nanoparticles dispersed in water have very different interaction behaviours which are directly visualized by in situ liquid cell transmission electron microscopy and confirmed by small angle X-ray scattering from a statistically relevant number of particles.
Involved external institutions
Politecnico di Torino
Italy (IT)
École Polytechnique - Université Paris-Saclay
France (FR)
Leibniz-Institut für Polymerforschung Dresden e. V.
Germany (DE)
Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich
Switzerland (CH)
Italy (IT)
École Polytechnique - Université Paris-Saclay
France (FR)
Leibniz-Institut für Polymerforschung Dresden e. V.
Germany (DE)
Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich
Switzerland (CH)
How to cite
APA:
Razza, N., Rizza, G., Coulon, P.-E., Didier, L., Fadda, G.C., Voit, B.,... Sangermano, M. (2018). Enabling the synthesis of homogeneous or Janus hairy nanoparticles through surface photoactivation. Nanoscale, 10(30), 14492-14498. https://doi.org/10.1039/c8nr04239j
MLA:
Razza, Nicolo, et al. "Enabling the synthesis of homogeneous or Janus hairy nanoparticles through surface photoactivation." Nanoscale 10.30 (2018): 14492-14498.
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