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基于紫外线-B持久发光光的智能窗户用于细菌抑制和食品保存

Xiaohui Lin¹, Chonghui Li¹, Shicai Xu¹

¹Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China.

|March 30, 2024

概括

这项研究引入了UVB持久发光光剂,用于食品保存. 智能窗口有效地使大肠杆菌和金黄色杆菌等细菌失活,延长食品的保质期.

科学领域:

材料科学材料科学材料科学
摄影发光效应是一种光照效应.
食品科学食品科学食品科学

背景情况:

持久发光 (PersL) 材料具有独特的发光特性.
紫外线B (UVB) 光表现出与食品保存相关的杀菌作用.
为特定应用开发新型光剂至关重要.

研究的目的:

开发基于SrAl12O19:Ce3+,Sc3+纳米粒子的UVB持久发光光体.
为了研究Sc3+辅助兴奋剂在发光性质中的作用.
评估这些的应用在食品杀菌和保存的智能窗口中.

主要方法:

合成SrAl12O19:Ce3+,Sc3+纳米颗粒. 这是一个非常简单的方法.
热发光 (TL) 频谱分析以研究陷动态.
使用SrAl12O19:Ce3+,Sc3+/PDMS.制造一个智能窗口.
测试对大肠杆菌和金黄色葡萄球菌的杀菌功效.
评估对猪肉腐败的影响.

主要成果:

在Sc3+联合注中引入了对光发光持续发光 (PersL) 至关重要的浅层陷.
确定了深陷,在近红外激发 (700900 nm) 下实现光学刺激发光 (OSL).
智能窗口证明了对大肠杆菌和黄金色杆菌的有效失活.
观察到猪肉腐烂的显著延迟和腐烂时间的缩短.

结论:

SrAl12O19:Ce3+,Sc3+纳米粒子是有效的UVB持久发光材料.
开发的智能窗口为食品杀菌和保存提供了一种新的方法.
这项技术提供了一种方便的方法来根除细菌并延长食物的新鲜度.

关键词:

细菌的抑制作用是可以抑制的.食品的保存食品的保存智能窗户是一个智能窗户.SrAl{12) O{19):Ce{3+),Sc{3+) 它们是什么?紫外线 (UVB) 持续的发光.

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