This study examines a facile technology to manufacture food packaging alternatives with superior mechanical, ultra-flexible, gas barrier and self-clean properties, based on green and benign starting materials. A novel galactomannan (GM) was isolated from the sesbania cannabina seeds, which was used as matrix for the fabrication of GM-based films. Inspired by the brick-and-mortar structure of natural nacre, a facile method was adopted to fabricate an artificial nacre based on the self-assembly of GM and borate crosslinked graphene oxide (GO). These GM/GO composites are ultra-flexibile, which can be folded into various shapes. The tensile strength reached 135.54 MPa which is 2.4 times that of the pure GM film. In addition, after coating with the poly(dimethylsiloxane) (PDMS), these films became hydrophobic (WCA around 120°) with self-cleaning properties. Our study further revealed that the oxygen and water vapor permeabilities were improved with the introduction of GO and PDMS coating.

这项研究研究了一种基于绿色和良性起始原料的，具有卓越的机械，超柔韧性，阻气性和自洁性能的食品包装替代品的简便技术。从芝麻大麻素中分离出一种新型半乳甘露聚糖（GM）种子，用作制造转基因膜的基质。在天然珍珠母的实体结构的启发下，采用一种简便的方法来制造基于GM和硼酸盐交联氧化石墨烯（GO）的自组装的人造珍珠母。这些GM / GO复合材料具有超柔韧性，可以折叠成各种形状。拉伸强度达到135.54 MPa，是纯GM膜的2.4倍。此外，在用聚二甲基硅氧烷（PDMS）涂覆后，这些薄膜变成具有自清洁特性的疏水性（WCA约为120°）。我们的研究进一步表明，引入GO和PDMS涂层可以改善氧气和水蒸气的渗透性。