1.黄埔海关技术中心,广东 东莞 523000
2.东莞理工学院 生态环境与建筑工程学院,广东 东莞 523808
焦哲,博士,副教授,硕士研究生导师,研究方向:基于AIE材料的光化学传感器研究,E-mail:jiaoz@dgut.edu.cn
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郭宗宁,叶领云,张孝琳等.基于AIEgens的现场可视化方法检测环境中新型冠状病毒污染的气溶胶[J].分析测试学报,2023,42(07):794-800.
GUO Zong-ning,YE Ling-yun,ZHANG Xiao-lin,et al.Detection of COVID-19 Polluted Aerosol in Environment Based on AIEgens On-site Visualization Method[J].Journal of Instrumental Analysis,2023,42(07):794-800.
郭宗宁,叶领云,张孝琳等.基于AIEgens的现场可视化方法检测环境中新型冠状病毒污染的气溶胶[J].分析测试学报,2023,42(07):794-800. DOI: 10.19969/j.fxcsxb.23022402.
GUO Zong-ning,YE Ling-yun,ZHANG Xiao-lin,et al.Detection of COVID-19 Polluted Aerosol in Environment Based on AIEgens On-site Visualization Method[J].Journal of Instrumental Analysis,2023,42(07):794-800. DOI: 10.19969/j.fxcsxb.23022402.
新型冠状病毒暴露场所的气溶胶现场快速检测有助于快速采取控制传染措施,保证公共环境安全。该研究基于便携式聚合酶链式反应(PCR)仪和聚集诱导发光探针(AIE luminogens,AIEgens),与大气颗粒物采样器结合,建立了新型冠状病毒污染气溶胶样品的可视化识别方法。首先对阳性质粒样品进行PCR扩增,再与AIEgens 1,1,2,2-四[4-(2-溴-乙氧基)苯基]乙烯(TTAPE)结合后发出蓝色荧光。在紫外灯下用肉眼或便携式智能手机可以清楚地观察。结果表明,阳性质粒可被肉眼或智能设备检出,而阴性样品不发光,证明了方法的特异性。研究发现阳性质粒质量浓度为5 ng/L时仍然可以实现可视化区分。将该便携式系统应用于新型冠状病毒污染气溶胶实际样品的现场筛查,结果均为阴性。
Development of an affordable,simple and on-site method for the assessment of SARS-CoV-2 exposure is critical to guarantee the safety of public environments.In this paper,a visual discrimination method for SARS-CoV-2 polluted aerosol was developed based on portable polymerase chain reaction(PCR) instrument,water-soluble AIE luminogens(AIEgens) and air sampler.The positive plasmid sample was firstly amplified by PCR,then visualized by DNA-binding AIEgens 1,1,2,2-tetrakis[4-(2-bromo-ethoxy) phenyl] ethene(TTAPE) with a label-free approach.The lighted-up emission could be distinctly identified with naked eye under a UV lamp or a portable smartphone.The results showed that positive plasmid could be visually detected,which confirmed the specificity of the proposed method.The portable system was applied to the on-site screening of SARS-CoV-2 in real aerosol samples,with the results all negative.
新型冠状病毒AIEgens可视化现场气溶胶
SARS-CoV-2AIEgensvisualon-siteaerosol
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