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Novel Hyperbranched Dialdehyde Carboxymethyl Cellulose-Grafted Gelatin Films as Potential Natural Antibacterial Materials
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2023-05-02 , DOI: 10.1021/acssuschemeng.2c07302 Li Yan 1 , Xugang Dang 1, 2, 3 , Mao Yang 1 , Wenjia Han 1 , Yanchun Li 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2023-05-02 , DOI: 10.1021/acssuschemeng.2c07302 Li Yan 1 , Xugang Dang 1, 2, 3 , Mao Yang 1 , Wenjia Han 1 , Yanchun Li 1
Affiliation
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Carboxymethyl cellulose (CMC) has potential applications in food packaging given its good processibility and biological properties. In this research, dialdehyde carboxymethyl cellulose (DCMC) was first modified with polyamidoamine (PAMAM G0) to synthesize hyperbranched dialdehyde carboxymethyl cellulose (HPD). Then, a novel hyperbranched dialdehyde carboxymethyl cellulose-grafted gelatin (HPD/Gs) film was obtained by the “one-pot” method. The structural characteristics, degree of cross-linking, thickness, swelling behavior, water solubility, water vapor permeability, surface morphology, hydrophilicity, mechanical strength, antibacterial properties, and biocompatibility of HPD/Gs were characterized by using Fourier transform infrared (FTIR), scanning electron microscopy energy-dispersive X-ray spectroscopy (SEM-EDS), X-ray diffractometry (XRD), thermogravimetric analysis/derivative thermogravimetry (TGA/DTG), differential scanning calorimetry (DSC), and other analysis technologies. The results revealed that the prepared HPD/Gs film showed good thermal stability and mechanical properties. In particular, when the mass ratio of HPD to G was 1:1.5, the cross-linking degree, swelling behaviors, water vapor permeability (WVP), water contact angle, tensile strength, and elongation at break of the HPD/1.5G film reached 42.757%, 109.114%, 46.71 g·mm/m2·day·kPa (1 day), 115.4 ± 4.5°, 1.77 MPa, and 320.93%, respectively. Moreover, the HPD/Gs films had good cytocompatibility and antibacterial properties against Staphylococcus aureus and Escherichia coli. The research indicated that the designed HPD/Gs are a type of green antimicrobial material with potential value.
中文翻译：
新型超支化二醛羧甲基纤维素接枝明胶薄膜作为潜在的天然抗菌材料
羧甲基纤维素 (CMC) 具有良好的加工性和生物特性，在食品包装方面具有潜在的应用前景。在这项研究中，首先用聚酰胺胺（PAMAM G0）改性二醛羧甲基纤维素（DCMC）以合成超支化二醛羧甲基纤维素（HPD）。然后，通过“一锅法”获得了一种新型超支化二醛羧甲基纤维素接枝明胶（HPD/Gs）膜。利用傅里叶变换红外 (FTIR)、扫描电子显微镜能量色散 X 射线光谱仪 (SEM-EDS)、X 射线衍射仪 (XRD)、热重分析/导数热重分析（TGA/DTG）、差示扫描量热法（DSC）等分析技术。结果表明，所制备的HPD/Gs薄膜具有良好的热稳定性和力学性能。特别地，当HPD与G的质量比为1:1.5时，HPD/1.5G薄膜的交联度、溶胀行为、水蒸气渗透率（WVP）、水接触角、拉伸强度和断裂伸长率达到42.757%、109.114%、46.71 g·mm/m2 ·天·kPa（1 天），分别为 115.4 ± 4.5°、1.77 MPa 和 320.93%。此外，HPD/Gs薄膜具有良好的细胞相容性和对金黄色葡萄球菌和大肠杆菌的抗菌性能。研究表明，所设计的HPD/Gs是一类具有潜在价值的绿色抗菌材料。
更新日期：2023-05-02
中文翻译：
新型超支化二醛羧甲基纤维素接枝明胶薄膜作为潜在的天然抗菌材料
羧甲基纤维素 (CMC) 具有良好的加工性和生物特性，在食品包装方面具有潜在的应用前景。在这项研究中，首先用聚酰胺胺（PAMAM G0）改性二醛羧甲基纤维素（DCMC）以合成超支化二醛羧甲基纤维素（HPD）。然后，通过“一锅法”获得了一种新型超支化二醛羧甲基纤维素接枝明胶（HPD/Gs）膜。利用傅里叶变换红外 (FTIR)、扫描电子显微镜能量色散 X 射线光谱仪 (SEM-EDS)、X 射线衍射仪 (XRD)、热重分析/导数热重分析（TGA/DTG）、差示扫描量热法（DSC）等分析技术。结果表明，所制备的HPD/Gs薄膜具有良好的热稳定性和力学性能。特别地，当HPD与G的质量比为1:1.5时，HPD/1.5G薄膜的交联度、溶胀行为、水蒸气渗透率（WVP）、水接触角、拉伸强度和断裂伸长率达到42.757%、109.114%、46.71 g·mm/m2 ·天·kPa（1 天），分别为 115.4 ± 4.5°、1.77 MPa 和 320.93%。此外，HPD/Gs薄膜具有良好的细胞相容性和对金黄色葡萄球菌和大肠杆菌的抗菌性能。研究表明，所设计的HPD/Gs是一类具有潜在价值的绿色抗菌材料。
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