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Host-guest supramolecular assembly directing beta-cyclodextrin based nanocrystals towards their robust performances.

Author information

Affiliations

  • 1. State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials and College of Chemical Engineering, Nanjing Tech University (Former Nanjing University of Technology), Nanjing 210009, PR China.
      Authors
    • Du XY 1
    • Ma K 1
    • Cheng R 1
    • She XJ 1
    • Zhang YW 1
    • Wang CF 1
    • Chen S 1
    (7 authors)
  • 2. State Key Laboratory of Pharmaceutical Biotechnology and School of Life Sciences, Nanjing University, Nanjing 210023, PR China.
      Authors
    • Xu C 2
    (1 author)

ORCIDs linked to this article

Journal of Hazardous Materials, 16 Aug 2018, 361:329-337
https://doi.org/10.1016/j.jhazmat.2018.08.040 PMID: 30245255 

Abstract 

Fluorescent CdTe nanocrystals (NCs) capped with beta-cyclodextrin (β-CD) are successfully synthesized by host-guest supramolecular assembly of the hydrophobic alkyl chains of N-acetyl-l-cysteine (NAC) on the surface of CdTe NCs and eco-friendly β-CD via the promising simple hydrothermal method in our experiments. The as-prepared NCs display better stability and lower toxicity compared with traditional those only capped with NAC. Specially, cytotoxicity experiments to human umbilical vein endothelial cells in vitro and zebrafish embryo toxicological tests in vivo are performed to determine the toxicity of CdTe NCs. For their practical applications, the promising red-luminescent NCs are employed as stable and low poison red phosphors to fabricate white light-emitting diodes (WLEDs) with remarkable color-rendering index (CRI) being 91.6. This research offers significance for solving the difficulty in toxicity and instability of heavy metal based NCs, which has potential applications in future optoelectronic devices and biomarkers.

Full text links 

Read article at publisher's site: https://doi.org/10.1016/j.jhazmat.2018.08.040

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Funding 

Funders who supported this work.

National Key Research and Development Program of China (1)

National Natural Science Foundation of China (4)

Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)

    State Key Laboratory of Pharmaceutical Biotechnology of Nanjing University (1)