海藻酸钠纤维素片上沉积氧化锌纳米棒簇用于抗菌活性。
Zinc oxide nanorod clusters deposited seaweed cellulose sheet for antimicrobial activity.
机构信息
Department of Science, School of Technology, Pandit Deendayal Petroleum University, Gandhinagar 382007, Gujarat, India; Petroleum Research Wing, Gujarat Energy Research and Management Institute, Gandhinagar 382007, Gujarat, India.
Petroleum Research Wing, Gujarat Energy Research and Management Institute, Gandhinagar 382007, Gujarat, India.
出版信息
Int J Biol Macromol. 2018 Jun;112:1264-1271. doi: 10.1016/j.ijbiomac.2018.02.108. Epub 2018 Feb 16.
Seaweed cellulose was isolated from green seaweed Ulva fasciata using a common bleaching agent. Sheet containing porous mesh was prepared from the extracted seaweed crystalline cellulose along with zinc oxide (ZnO) nanorod clusters grown over the sheet by single step hydrothermal method. Seaweed cellulose and zinc oxide nanorod clusters deposited seaweed cellulose sheet was characterized by FT-IR, XRD, TGA, and SEM-EDX. Morphology showed that the diameter of zinc oxide nanorods were around 70nm. Zinc oxide nanorod clusters deposited on seaweed cellulose sheet gave remarkable antibacterial activity towards gram-positive (Staphylococcus aureus, Bacillus ceresus, Streptococcus thermophilis) and gram-negative (Escherichia coli, Pseudomonas aeruginous) microbes. Such deposited sheet has potential applications in pharmaceutical, biomedical, food packaging, water treatment and biotechnological industries.
从绿藻石莼中使用常见的漂白剂分离出海藻纤维素。从提取的海藻结晶纤维素中制备出含有多孔网格的薄片，并通过一步水热法在薄片上生长氧化锌（ZnO）纳米棒簇。海藻纤维素和氧化锌纳米棒簇沉积的海藻纤维素薄片通过傅里叶变换红外光谱（FT-IR）、X 射线衍射（XRD）、热重分析（TGA）和扫描电子显微镜-能谱分析（SEM-EDX）进行了表征。形貌显示，氧化锌纳米棒的直径约为 70nm。氧化锌纳米棒簇沉积在海藻纤维素薄片上，对革兰氏阳性（金黄色葡萄球菌、蜡状芽孢杆菌、嗜热链球菌）和革兰氏阴性（大肠杆菌、绿脓杆菌）微生物表现出显著的抗菌活性。这种沉积的薄片在制药、生物医学、食品包装、水处理和生物技术等领域具有潜在的应用。
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