International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
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Preparation and Characterization of Silk Beads for Protein Delivery System

  • Kim, Sung-Kuk (Sericultural and Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Jo, You-Young (Sericultural and Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Kwang-Gill (Sericultural and Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Heui-Sam (Sericultural and Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Yeo, Joo-Hong (Sericultural and Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Kweon, HaeYong (Sericultural and Apicultural Materials Division, National Academy of Agricultural Science, RDA)
  • Received : 2014.06.02
  • Accepted : 2014.06.20
  • Published : 2014.06.30
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Abstract

In order to the feasibility of silk materials as protein delivery system, silk beads incorporated with bovine serum albumin (BSA) were prepared by dropping silk fibroin extract into dope solution composed of ethanol and dichloromethane. Structural and morphological characteristics of silk beads were examined using scanning electron microscopy (SEM), infrared spectrometry, and X-ray diffractometry. Swelling ratio of silk beads was also measured. Release behavior of prototypical protein, BSA, was studied by observing the electropheretic phenomenon and release profile. SEM showed that silk beads are spherical with porous interior structure. Infrared spectrometry and X-ray diffraction confirm that the silk beads have a ${\beta}$-sheet conformation. The swelling capability of silk beads increased with the incorporation of the protein. The protein was released from the beads with slow release following an initial burst release. Therefore, silk beads show promise as materials for encasing protein drugs to be delivered to targets in the human body.

Keywords

References

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