使用基于纳米体的同质免疫试验快速检测50nm以下的聚烯纳米塑料的一步策略
Yang Deng1, Yang Guo1, Fei Li2
1CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189, Songling Road, Qingdao 266101, China; Shandong Energy Institute, No. 189, Songling Road, Qingdao 266101, China; Qingdao New Energy Shandong Laboratory, No. 189, Songling Road, Qingdao 266101, China; University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Beijing 100049, China.
一个新的同质免疫测试平台,使用纳米体工程和NanoLuciferase二进制技术,能够快速,非破坏性地量化50nm以下的纳米塑料. 这一突破为环境监测和生物医学研究提供了灵敏和多功能工具.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 生物技术是生物技术.
背景情况:
- 纳米塑料污染对全球环境和健康造成了重大关注.
- 目前用于量化纳米塑料的方法,特别是50nm以下的粒子,往往是复杂的,耗时的,需要专门的设备.
- 对于纳米塑料有着敏感,快速和可访问的检测技术的关键需求.
研究的目的:
- 开发和验证一种新的同质免疫测试平台,用于对50nm以下纳米塑料的敏感量化.
- 将纳米体工程与NanoLuciferase二进制技术集成,用于实时发光检测.
- 建立纳米塑料量化中的范式转变,使现场环境监测和生物医学研究成为可能.
主要方法:
- 经过基因工程设计,聚乙烯向纳米体 (B2) 融合以分裂纳米化酶子单元 (SmBiT/LgBiT).
- 在纳米体-纳米粒子结合上利用纳米化酶子单元的复合生成发光信号.
- 优化了20nm聚乙烯纳米颗粒的测量方法,以最小的样本准备.
主要成果:
- 在5-10分钟内实现了20nm聚乙烯纳米颗粒的非破坏性量化.
- 确定了9.1微克/毫升的检测极限和19.9微克/毫升的量化极限.
- 在真实环境矩阵中证明了稳定性和适用性,具有高回收率 (86.52-146.44%) 和可接受的变化系数 (9.1-18.2%).
结论:
- 开发的免疫测试平台为量化50nm以下纳米塑料提供了灵敏,快速和多功能方法.
- 这项技术消除了对昂贵仪器和专业操作的需求,使微量分析成为可能.
- 为现场广泛的环境监测铺平了道路,并在生物医学应用中推进了纳米塑料研究.
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