Media type: E-Article Title: Near-infrared photoswitching of cyclodextrin–guest complexes using lanthanide-doped LiYF4 upconversion nanoparticles Contributor: Möller, Nadja; Hellwig, Tim; Stricker, Lucas; Engel, Sabrina; Fallnich, Carsten; Ravoo, Bart Jan imprint: Royal Society of Chemistry (RSC), 2017 Published in: Chemical Communications Language: English DOI: 10.1039/c6cc08321h ISSN: 1359-7345; 1364-548X Keywords: Materials Chemistry ; Metals and Alloys ; Surfaces, Coatings and Films ; General Chemistry ; Ceramics and Composites ; Electronic, Optical and Magnetic Materials ; Catalysis Origination: Footnote: Description: <p>This communication reports a new type of supramolecular cyclodextrin–guest complexes using cyclodextrin coated upconversion nanoparticles as hosts and monovalent and divalent azobenzenes and arylazopyrazoles as guests.</p>