Stimuli‐Responsive Particle‐Based Amphiphiles as Active Colloids Prepared by Anisotropic Click Chemistry †

Abstract: Amphiphiles alter the energy of surfaces, but the extent of this feature is typically constant. Smart systems with amphiphilicity as a function of an external, physical trigger are desirable. As a trigger, the exposure to a magnetic field, in particular, is attractive because it is not shielded in water. Amphiphiles like surfactants are well known, but the magnetic response of molecules is typically weak. Vice‐versa, magnetic particles with strong response to magnetic triggers are fully established in nanoscience, but they are not amphiphilic. In this work colloids with Janus architecture and ultra‐small dimensions (25 nm) have been prepared by spatial control over the thiol‐yne click modification of organosilica‐magnetite core–shell nanoparticles. The amphiphilic properties of these anisotropically modified particles are proven. Finally, a pronounced and reversible change in interfacial stabilization results from the application of a weak (<1 T) magnetic field.

Objekt anzeigen

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Stimuli‐Responsive Particle‐Based Amphiphiles as Active Colloids Prepared by Anisotropic Click Chemistry † ; volume:59 ; number:23 ; year:2020 ; pages:8902-8906 ; extent:5 ; Angewandte Chemie / International edition. International edition ; 59, Heft 23 (2020), 8902-8906 (gesamt 5)

Beteiligte, Orts- und Zeitangaben

• Urheber: Lanz, Cornelia ; Schlötter, Moritz ; Klinkenberg, Nele ; Besirske, Patricia ; Polarz, Sebastian

Weitere Informationen

• DOI: 10.1002/anie.202001423
• URN: urn:nbn:de:101:1-2022061113014732942743
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.