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Ricinoleic Acid‐Capped Upconverting Nanocrystals: An Ideal Capping Ligand to Render Nanocrystals Water Dispersible
Author(s) -
Meesaragandla Brahmaiah,
Sarkar Shyam,
Hazra Chanchal,
Mahalingam Venkataramanan
Publication year - 2013
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201300205
Subject(s) - nanocrystal , ligand (biochemistry) , ricinoleic acid , nanotechnology , janus , nanoparticle , photon upconversion , materials science , chemistry , organic chemistry , ion , biochemistry , receptor , castor oil
Cap in hand : Ricinoleic acid (RA) replaces oleic acid as capping ligand in the synthesis of upconverting nanocrystals in the size range of 10 nm. The presence of hydroxyl groups near the double bond in RA is advantageous in hydroxylation of the bond (see figure), and the size of the nanocrystals is preserved. The small size, high water dispersibility, and strong upconversion from the nanocrystals could be utilized in sensing and bioimaging applications.