Effects of konjac glucomannan on the structure, properties, and drug release characteristics of agarose hydrogels
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Published on: October 25, 2018
Yi Yuan1, Lin Wang1, Ruo-Jun Mu1
1College of Food Science, Fujian Agriculture And Forestry University, Fuzhou 350002, China.
Abstract:
Pure agarose (AG) hydrogels have strong rigidity and brittleness, which greatly limit their applications. Therefore, in this study, konjac glucomannan (KGM) was used to improve the properties of AG hydrogels. The effect of KGM on the structure and properties of AG hydrogels was investigated by rotational rheometry, Fourier Transform Infrared Spectroscopy, X-ray Diffraction, and Scanning Electron Microscopy. The results showed that the flexibility of the composite hydrogels increases with KGM concentration, which may be attributed to a synergistic interaction between KGM and AG resulting in a compact network structure. In vitro drug release behavior of composite hydrogels was investigated under different environments using model drug ciprofloxacin. The results showed that the encapsulation, drug loading efficiencies, and sustained release capacity of AG hydrogels were enhanced by the incorporation of KGM. These results suggested that KGM has the potential to enhance the properties and drug release characteristics of AG hydrogels.
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