细菌纤维素增强与琥珀酸交联对琼脂性能的协同效应
Synergistic effect of bacterial cellulose reinforcement and succinic acid crosslinking on the properties of agar.
作者信息
Belay Mezigebu, Tyeb Suhela, Rathore Kalpana, Kumar Manoj, Verma Vivek
机构信息
Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India; Department of Metallurgical and Materials Engineering, Defense University, College of Engineering, Bishoftu 1041, Ethiopia.
Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
出版信息
Int J Biol Macromol. 2020 Dec 15;165(Pt B):3115-3122. doi: 10.1016/j.ijbiomac.2020.10.144. Epub 2020 Oct 22.
In this work, the modification of agar is presented with the synergistic effect of bacterial cellulose reinforcement and succinic acid crosslinked agar. The effect of crosslinking agar with succinic acid on tensile strength and water absorption were studied. Crosslinking was confirmed with Fourier infrared spectroscopy. The tensile strength of agar was increased by 70% by succinic acid crosslinking (from55 ± 9.97 MPa to 93.40 ± 9.97 MPa) and the crosslinked agar absorbed only 18.66% water compared to uncrosslinked agar. The tensile strength of agar was increased by 56% by bacterial cellulose reinforcement (55 ± 9.97 MPa to 86.30 ± 14.70 MPa). The strength of agar was improved by 101% by the synergistic effect of bacterial cellulose reinforcement and succinic acid crosslinking (55 ± 9.97 MPa to 111 ± 12.30 MPa). Cytocompatibility studies of the developed films suggested that the crosslinked samples can also have potential applications in biomedical engineering apart from packaging applications.
在本研究中，介绍了琼脂的改性方法，即通过细菌纤维素增强和琥珀酸交联琼脂的协同作用。研究了琥珀酸交联琼脂对拉伸强度和吸水性的影响。通过傅里叶红外光谱证实了交联反应。琥珀酸交联使琼脂的拉伸强度提高了70%（从55±9.97MPa提高到93.40±9.97MPa），与未交联的琼脂相比，交联琼脂仅吸收18.66%的水。细菌纤维素增强使琼脂的拉伸强度提高了56%（从55±9.97MPa提高到86.30±14.70MPa）。细菌纤维素增强和琥珀酸交联的协同作用使琼脂的强度提高了101%（从55±9.97MPa提高到111±12.30MPa）。对所制备薄膜的细胞相容性研究表明，除了包装应用外，交联样品在生物医学工程中也具有潜在的应用价值。
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