1.川北医学院 药学院,四川 南充 637000
2.四川尚悦分析检测有限公司,四川成都 610000
罗荧萍,博士,副教授,研究方向:SELEX生物技术与分子探针,E-mail:lyingping@163.com
收稿:2026-02-06,
修回:2026-04-13,
录用:2026-04-15,
网络首发:2026-04-30,
纸质出版:2026-06-15
移动端阅览
陈培瑶,谢林惠,谢杨,龚婷,罗荧萍.基于硫黄素T竞争置换的免标记荧光适配体传感器用于肝毒性千里光碱快速检测[J].分析测试学报,2026,45(06):1-7.
CHEN Pei-yao,XIE Lin-hui,XIE Yang,GONG Ting,LUO Ying-ping.A Label-free Fluorescent Aptasensor Based on Competitive Displacement of Thioflavin T for Rapid Detection of Hepatotoxic Senecionine[J].Journal of Instrumental Analysis,2026,45(06):1-7.
陈培瑶,谢林惠,谢杨,龚婷,罗荧萍.基于硫黄素T竞争置换的免标记荧光适配体传感器用于肝毒性千里光碱快速检测[J].分析测试学报,2026,45(06):1-7. DOI: 10.12452/j.fxcsxb.26020602.
CHEN Pei-yao,XIE Lin-hui,XIE Yang,GONG Ting,LUO Ying-ping.A Label-free Fluorescent Aptasensor Based on Competitive Displacement of Thioflavin T for Rapid Detection of Hepatotoxic Senecionine[J].Journal of Instrumental Analysis,2026,45(06):1-7. DOI: 10.12452/j.fxcsxb.26020602.
肝毒性千里光碱(SEN)的快速检测对食品安全与公共卫生至关重要。该研究基于前期筛选获得的SEN特异性核酸适配体,构建了一种新型、免标记荧光适配体传感器。其设计核心在于利用硫黄素T(ThT)与适配体的特异性结合产生强荧光信号,当靶标SEN存在时,可竞争性置换ThT,导致荧光显著降低(“信号关闭”模式)。该传感器具有优异的SEN筛查能力,其检出限低至40 nmol/L,样本亦可在蓝光照射下直接观察,且特异性高。在蜂蜜实际样本中,该方法仍保持良好的线性响应(0~10 μmol/L,
r
²=0.98),检出限为414 nmol/L,加标回收率为99.2%~103%,相对标准偏差低于3.0%,证实了其在复杂基质中应用的准确性与可靠性。该研究发展了一种灵敏度高、特异性强、操作简便的SEN检测新方法,为食品及中药材中吡咯里西啶类生物毒素的现场快速筛查提供了具有潜力的技术平台。
The rapid detection of hepatotoxic senecionine(SEN) is crucial for food safety and public health. In this study,a novel,label-free fluorescent aptasensor was developed based on a previously selected SEN-specific DNA aptamer. The core design principle relies on the strong fluorescence signal generated by the specific binding between thioflavin T(ThT) and the aptamer. In the presence of the target,SEN competitively displaces ThT from the ThT-aptamer complex,resulting in a significant fluorescence decrease(“signal-off”mode). The demonstrated sensor exhibits excellent screening capability for SEN,with a detection limit as low as 40 nmol/L,and samples can be dire
ctly observed under blue light irradiation. The snesor demonstrates high specificity. In actual honey samples,the method still maintains a good linear response(0-10 μmol/L,
r
²=0.98),with a detection limit of 414 nmol/L. Spiked recovery rates ranged from 99.2% to103%,and the relative standard deviation was below 3.0%,confirming its accuracy and reliability in complex matrices. This study presents a new method for SEN detection with high sensitivity,strong specificity,and simple operation,offering a promising technological platform for the on-site rapid screening of pyrrolizidine alkaloid biotoxins in food and herbal medicines.
Jiao W , Zhu L , Li Q , Shi TX , Zhang Z , Wu X , Yang T , Hua R , Cao H . J. Agric. Food Chem. , 2023 , 71 ( 48 ): 19045 - 19053 .
He Y , Long Y , Zhang C , Ma J , Ke C , Tang C , Ye Y , Lin G . J. Hazard. Mater. , 2022 , 424 ( Pt D ): 127706 .
Ghallab A . Arch. Toxicol. , 2019 , 93 ( 12 ): 3639 - 3640 .
Yang X , Wang X , Chen Y , Wang Z , Zhang D , Wang N , Wang Z , Xiong A , Li L , Yang L . Analyst , 2025 , 150 ( 9 ): 1929 - 1938 .
He X , Xia Q , Bryant M S , Fu P P . J. Environ. Sci. Health C , 2025 , 43 ( 1 ): 117 - 132 .
Jiang K Y , Ye X L , Xiong F , Zhang Y , Yang L , Xiong A Z , Wang Z T . Acta Pharm. Sin. B . (姜凯元,叶铉玲,熊芬,张祎,杨莉,熊爱珍,王峥涛. 药学学报), 2021 , 56 ( 3 ): 823 - 830 .
Chen Y , Jia X L , Xiong A Z , Wang C H , Yang L , Wang Z T . Acta Pharm. Sin. B (陈岩,贾夏丽,熊爱珍,王长虹,杨莉,王峥涛. 药学学报), 2022 , 57 ( 12 ): 3626 - 3633 .
Wan J Y , Feng C , Chen Y H , Xu Q , Lin Y J , Le S Y , Lu D S , Qiu X L . J. Instrum. Anal. (万静宜,冯超,陈宇航,徐骞,林元杰,乐孙阳,卢大胜,邱歆磊. 分析测试学报), 2023 , 42 ( 10 ): 1351 - 1356 .
Wang Y , Li Y , Cang S , Cai Q , Xu H , Wang Y , Liu R , Xu H , Li Q . J. Mass Spectrom. , 2020 , 55 ( 10 ): e4532 .
Mudge EM , Jones AM , Brown PN . Food Addit. Contam.A , 2015 , 32 ( 12 ): 2068 - 2074 .
Kowalczyk E , Kwiatek K . Food Addit. Contam.A , 2017 , 34 ( 12 ): 853 - 863 .
Zheng P , Peng T , Wang J , Zhang J , Wang Z , Zhang Y , Ren Z , Wang S , Jiang H . Microchim. Acta , 2021 , 188 ( 1 ): 11 .
Xiao Y , Yi H , Wang G , Chen S , Li X , Wu Q , Zhang S , Deng K , He Y , Yang X . Talanta , 2022 , 249 : 123645 .
Fang P , Wang S , Mao Y , Liu C H . Food Res. Dev. (方鹏,王帅,毛瑜,刘长虹. 食品研究与开发), 2024 , 45 ( 3 ): 174 - 180 .
Zhang J , Xie L , Lai T , Chen P , Gong T , Tang J , Qian X , Su R , Luo Y . Anal. Chem. , 2025 , 97 ( 45 ): 25257 - 25264 .
Lai T , Sun Q , Lv Z , Xie L , Niu S , Zhang J , Tang J , Li S , Luo Y . Sens. Actuators B , 2025 , 424 : 136880 .
Li Q , Wang J , Zhang Z , Xu Y , Fu Y . Spectrochim. Acta A , 2025 , 339 : 126278 .
Zhang H , Wang X , Li H , Zhao L . Food Chem. , 2025 , 492 ( Pt 3 ): 145588 .
Chen L , Yuan A , Zhang D , Xie W , Peng H . Anal Methods , 2024 , 16 ( 37 ): 6356 - 6363 .
Cheng X , Yao P , Jin C , Long J , Yan X , Zhao X , Wei T , Liu Q , Chen Y , Su H , Xuan H , Bian S , Li J , Liu W , Zheng Z , Zhang L . Nat . Biomed. Eng. , 2025 . doi: 10.1038/s41551-025-01503-8 http://dx.doi.org/10.1038/s41551-025-01503-8
Ettayri K , Gu Z , Yang H , Chen Y , Ma M , Wang C , Long L , Wang K , Qian J . Int. J. Biol. Macromol. , 2025 , 327 ( Pt 1 ): 147398 .
Guo M , Yang Y Y , Li Y , Ren L , Wang Y L , Liu J Q . Chin. Tradit. Pat. Med. (郭丽敏,杨圆圆,李赟,任蕾,王颖莉,刘计权. 中成药), 2025 , 47 ( 5 ): 1746 - 1750 .
Yang Y Y , Deng Z R , Gao S C , Guo L M . Chin. J. Chin. Mater. Med. (杨圆圆,邓峥嵘,高仕超,郭丽敏. 中国中药杂志), 2024 , 49 ( 7 ): 1818 - 1825 .
Li Y N , Wang J P . Chin. J. Anal. Lab. (李亚楠,王俊平. 分析试验室), 2020 , 39 ( 1 ): 12 - 16 .
Li Y N , Wang J P . Chin. J. Anal. Lab. (李亚楠,王俊平. 分析试验室), 2020 , 39 ( 3 ): 255 - 260 .
Liu Y , Peng L Y , Ren Y . J. Instrum. Anal. (刘毅,彭丽华,任昀. 分析测试学报), 2015 , 34 ( 3 ): 352 - 356 .
He X , Qi J , Yu Z H , Chen Y , Fu X L . Chin. J. Anal. Chem. (贺璇,齐骥,余子辉,陈燕,付秀丽. 分析化学), 2024 , 52 ( 8 ): 1094 - 1107 .
Xie L , Chen P , Feng D , Gong T , Zhang J , Lai T , Tang J , Li S , Luo Y . Anal Chem. , 2025 , 97 ( 40 ): 21835 - 21842 .
Hetzke T , Vogel M , Halbritter A J , Saha S , Suess B , Sigurdsson S T , Prisner T F . J. Phys. Chem. Lett. , 2023 , 14 ( 50 ): 11421 - 11428 .
Brugnerotto P , Silva B , Gonzaga L V , Costa A C O . Food Chem. , 2025 , 483 : 144211 .
Lin R , Peng J , Zhu Y , Dong S , Jiang X , Shen D , Li J , Zhu P , Mao J , Wang N , He K . Foods , 2025 ; 14 ( 7 ): 1147 .
Xiao Y , Yi H , Wang G , Chen S , Li X , Wu Q , Zhang S , Deng K , He Y , Yang X . Talanta , 2022 , 249 : 123645 .
Griffin C T , Danaher M , Elliott C T , Glenn K D , Furey A . Food Chem. , 2013 , 136 ( 3/4 ): 1577 - 1583 .
0
浏览量
5
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621
