Ricinoleic Acid-Capped Upconverting Nanocrystals: An Ideal Capping Ligand to Render Nanocrystals Water Dispersible

Authors

  • Brahmaiah Meesaragandla,

    1. Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Kolkata, Mohanpur Campus, Nadia District, WB 741252 (India), Fax: (+91) 33-25873020
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  • Shyam Sarkar,

    1. Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Kolkata, Mohanpur Campus, Nadia District, WB 741252 (India), Fax: (+91) 33-25873020
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  • Chanchal Hazra,

    1. Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Kolkata, Mohanpur Campus, Nadia District, WB 741252 (India), Fax: (+91) 33-25873020
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  • Dr. Venkataramanan Mahalingam

    Corresponding author
    1. Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Kolkata, Mohanpur Campus, Nadia District, WB 741252 (India), Fax: (+91) 33-25873020
    • Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Kolkata, Mohanpur Campus, Nadia District, WB 741252 (India), Fax: (+91) 33-25873020

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Abstract

original image

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.

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