Abstract Flexible polymeric films are regularly used as packaging materials, but the key challenge is to improve the barrier properties in order to maintain freshness of the food. In this report, we have developed a 2D/2D g-C3N4@CuSe heterostructure based biodegradable film with active intriguing properties, which can hold high potential for intelligent packaging. Excellent barrier properties (1.57 times enhancement) and exceptional mechanical properties (>2 compared to pristine form) of the film have been achieved due to reinforcement of layered structure within the polymer matrix attributing torturous path in gas/water penetration. Further, optimized properties of the developed 2D/2D heterostructure film help in minimizing the defects that promote permeation, resulting in active and outstanding barrier performance which can be used to cover varied types of food packaging. The developed film exhibits integrated functional properties with prominent antimicrobial properties against foodborne pathogens and easy biodegradability to serve as a potential candidate for active sustainable packaging applications.

中文翻译：

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通过二维异质结构增强增强可生物降解薄膜的阻隔性能

摘要 柔性聚合物薄膜经常用作包装材料，但关键的挑战是提高阻隔性能以保持食品的新鲜度。在本报告中，我们开发了一种基于 2D/2D g-C3N4@CuSe 异质结构的可生物降解薄膜，具有有趣的活性，具有很高的智能包装潜力。由于聚合物基体内层状结构的增强，导致气体/水渗透的曲折路径，因此薄膜具有出色的阻隔性能（增强 1.57 倍）和卓越的机械性能（与原始形式相比 >2）。此外，开发的 2D/2D 异质结构薄膜的优化特性有助于最大限度地减少促进渗透的缺陷，从而产生活性和出色的阻隔性能，可用于覆盖各种类型的食品包装。开发的薄膜具有综合功能特性，具有对食源性病原体的显着抗菌特性和易生物降解性，可作为主动可持续包装应用的潜在候选者。