Abstract Bacterial cellulose (BC) produced from coconut water, commonly known as nata de coco, is a biopolymer with enormous properties. Compared to plant cellulose, BC has better mechanical strength and a greater degree of polymerization. BC’s high purity and high porosity make it a suitable candidate for the embedding and dispersion template for silver nanoparticles (AgNPs). This study investigated a facile and scalable method of making BC from coconut water and impregnated them with AgNO3 solution to produce AgNPs templated BC. The resulting materials were characterized by Fourier transform infra-Red (FTIR), scanning electron microscope (SEM), energy dispersive X-ray (EDX), and X-ray diffraction (XRD). The thermal stability was also investigated by thermogravimetric analysis (TGA). The antibacterial activity of AgNPs templated BC was challenged in cultures of gram-positive bacteria Staphylococcus aureus and gram-negative bacteria Escherichia coli and showed an inhibition zone of growth in agar media. This study proves that the resulting AgNPs templated BC sheets are potential materials for antibacterial and industrial application that are low cost and easy to produce.

中文翻译：

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以细菌纤维素为模板的银纳米粒子的简便合成路线、表征及其抗菌应用

摘要 由椰子水生产的细菌纤维素（BC），俗称椰浆，是一种具有巨大特性的生物聚合物。与植物纤维素相比，BC具有更好的机械强度和更高的聚合度。BC 的高纯度和高孔隙率使其成为银纳米粒子 (AgNPs) 嵌入和分散模板的合适候选者。本研究调查了一种从椰子水中制备 BC 的简便且可扩展的方法，并用 AgNO3 溶液浸渍它们以生产以 AgNPs 为模板的 BC。通过傅里叶变换红外 (FTIR)、扫描电子显微镜 (SEM)、能量色散 X 射线 (EDX) 和 X 射线衍射 (XRD) 对所得材料进行表征。还通过热重分析（TGA）研究了热稳定性。AgNPs 模板化 BC 的抗菌活性在革兰氏阳性菌金黄色葡萄球菌和革兰氏阴性菌大肠杆菌培养物中受到挑战，并在琼脂培养基中显示出生长抑制区。本研究证明，所得到的 AgNPs 模板化 BC 片材是低成本且易于生产的抗菌和工业应用的潜在材料。