Anisotropic functionalization of upconversion nanoparticles.

Publication Type:
Journal Article
Citation:
Chemical science, 2018, 9 (18), pp. 4352 - 4358
Issue Date:
2018-05
Full metadata record
Files in This Item:
Filename Description Size
Anisotropic functionalization of upconversion nanoparticles.pdfPublished Version843.92 kB
Adobe PDF
Despite significant advances toward accurate tuning of the size and shape of colloidal nanoparticles, the precise control of the surface chemistry thereof remains a grand challenge. It is desirable to conjugate functional bio-molecules onto the selected facets of nanoparticles owing to the versatile capabilities rendered by the molecules. We report here facet-selective conjugation of DNA molecules onto upconversion nanoparticles via ligand competition reaction. Different binding strengths of phosphodiester bonds and phosphate groups on DNA and the surfactant molecules allow one to create heterogeneous bio-chemistry surface for upconversion nanoparticles. The tailored surface properties lead to the formation of distinct self-assembly structures. Our findings provide insight into the interactions between biomolecules and nanoparticles, unveiling the potential of using nanoparticles as fundamental building blocks for creating self-assembled nano-architectures.
Please use this identifier to cite or link to this item: