Journal
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART N-JOURNAL OF NANOMATERIALS NANOENGINEERING AND NANOSYSTEMS
Volume 229, Issue 1, Pages 41-48Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1740349914529094
Keywords
Bacterial cellulose; hyaluronic acid; composite; characterization; 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide
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Funding
- National Natural Science Foundation of China [21106105]
- Chinese National Training Programs of Innovation and Entrepreneurship for Undergraduates [201310057055]
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Bacterial cellulose/hyaluronic acid composites have been prepared by the nontoxic cross-linking agent 1-ethyl-3( 3-dimethylaminopropyl)-carbodiimide. The effects of hyaluronic acid concentration, temperature, and the 1-ethyl-3( 3-dimethylaminopropyl)-carbodiimide addition way on the performance of the composites have been discussed. Field emission scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and thermogravimetric analyzer have been used to characterize the composite materials. The hyaluronic acid contents in the composites have been assayed by a colorimetric method. Hyaluronic acid concentration, the 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide addition way, and temperature have impacts on the hyaluronic acid content in composites. Fourier transform infrared spectra confirm the amide groups on the composites, which is attributed to hyaluronic acid molecules. The crystallinity indexes of composites decrease, in comparison with pristine bacterial cellulose, known from X-ray diffraction tests, possibly due to the integration of hyaluronic acid. The thermal decomposition temperatures of Composites A and B from Process 1 are lower than those of bacterial cellulose, which is ascribed to lower pyrolysis temperatures of hyaluronic acid compound in composite materials. However, Composites C and D from Process 2 do not undergo descent thermal stability. The novel nanocomposites have the potential to be used for biomedical and tissue engineering scaffold materials.
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