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Journal of Chinese Pharmaceutical Sciences ›› 2019, Vol. 28 ›› Issue (9): 665-672.DOI: 10.5246/jcps.2019.09.063

• Original articles • Previous Articles    

Self-assembly of Ophiopogonis polysaccharide-iron (III) complex in aqueous solution and solid state

Chunxia Tan1*, Yali Wang2   

  1. 1. Gansu University of Chinese Medicine, Lanzhou 730000, China
    2. Key Laboratory of Traditional Chinese Medicine Quality and Standard, Gansu University of Chinese Medicine, Lanzhou 730000, China
  • Received:2019-05-27 Revised:2019-06-13 Online:2019-09-30 Published:2019-08-15
  • Contact: Tel.: +86-13519641096, E-mail: tancx@sina.com
  • Supported by:

    Key Laboratory of Traditional Chinese Medicine Quality and Standard, Gansu University of Chinese Medicine, Lanzhou, China (Grant No. ZYZL18-006).

Abstract:

Ophiopogonis polysaccharide-iron (III) (OPI) was prepared and characterized in the present study. The optimum condition for preparing OPI was as follows: OP and trisodium citrate were mixed at a weight ratio of 4:1 and reacted in a water bath at 70 °C for 3 h within the pH range of 8.08.5. Aggregation morphology or structure of OPI in aqueous solution and solid state was studied by scanning electron microscopy, transmission electron microscopy and small-angle X-ray diffraction. In aqueous solution, OPI could self-assemble into micron vesicles with flower-shaped morphology. Results of X-ray diffraction showed OPI with layered structure. A core-shell model was proposed for OPI.

Key words: Supramolecular complexes, Ophiopogonis polysaccharide-iron (III), Self-assembly, Flower-shaped morphology, Layered structure

CLC Number: 

Supporting: