Increasing cell viability using Cd-free - InP/ZnS@silica@layered double hydroxide - materials for biological labelingElectronic supplementary information (ESI) available: Materials and methods: synthesis of NPs and treatments; NPs preparation, cell incubation; inmunostaining; MTT test; instrumentation. And results: TEM images of different-sized QDs@silica nanospheres: (a) 17 nm, (b) 27 nm, (c) 32 nm, (d) 40 nm, (e) 55 nm and (f) 65 nm; absorption and emission spectra of InP/ZnS quantum dots. See

• Main Authors: Serrano, Iván Castelló, Stoica, Georgiana, Palomares, Emilio
• Format: Journal Article
• Published: 29.03.2016
• ISSN: 2046-2069
• DOI: 10.1039/c6ra02497a

In this work we describe the synthesis and characterization of InP/ZnS@silica@LDH nanoparticles and, moreover, their use as biomarkers. The use of dual systems combining silica shells and hydrotalcite nanocoatings favors the cell viability in clear contrast with the system with only silica shells. Furthermore, the use of Cd-free luminophores extends the cells lifetime and illustrates the potential of the InP/ZnS@silica@LDH material as a biomarker. In this work we describe the synthesis and characterization of InP/ZnS@silica@LDH nanoparticles and, moreover, their use as biomarkers.