基于纤维素的光热涂层:用于种子保护和长期谷物存储的可持续解决方案
Xin Ji1,2, Weiguo Tian1, Kunfeng Jin1,2
1Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry Chinese Academy of Sciences (CAS), Beijing 100190, China.
ACS nano
|July 13, 2023
概括
使用光热纳米颗粒的新型纤维素基涂层在红外光下有效地消除了种子传播的微生物. 这一绿色战略为种子保护和长期谷物储存提供了可持续的解决方案,减少了对化学农药的依赖.
科学领域:
- 农业科学 农业科学
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
背景情况:
- 现代农业严重依赖合成化学品 (杀虫剂,化肥),引发了人们对过度使用和环境影响的担忧.
- 可持续的替代品对于防止粮食危机和减少农业中化学品依赖至关重要.
研究的目的:
- 为种子保护和长期谷物储存制定一个绿色,多功能战略.
- 创建一种基于纤维素的光热涂层,能够根除种子传播的病原体.
主要方法:
- 合成了一种由光热多多巴胺纳米粒子 (PDA NPs) 和正电荷纤维素衍生物 (Cell-N+) 组成的涂层.
- 涂层 (PDA NPs@Cell-N+) 被涂在种子上,并用红外线照射,以评估其对种子传播的细菌和真菌的有效性.
- 进行了体外和体内测试,以及对豆 (Vigna radiata) 的种苗阶段表型分析.
主要成果:
- PDA NPs@Cell-N+涂层有效地消除了致病微生物,包括Aspergillus flavus,抑制率超过99%.
- 通过这种光热疗法,豆的种子传播疾病得到了有效的预防.
- 涂层显示出出色的溶解性和生物相容性,允许在没有食品安全问题的情况下回收利用.
结论:
- PDA NPs@Cell-N+为种子保护和长期谷物存储提供了一种基于自然的,可持续的解决方案.
- 这种光热涂层技术为农业应用提供了传统化学处理的有效替代方案.
- 该研究强调了绿色纳米技术在加强食品安全和安全方面的潜力.
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