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AIEgens Barcodes Combined with AIEgens Nanobeads for High-sensitivity Multiplexed Detection.
Theranostics ( IF 12.4 ) Pub Date : 2019-09-23 , DOI: 10.7150/thno.36525
Weijie Wu 1 , Xun Wang 1 , Mengfei Shen 1 , Li Li 2 , Yue Yin 2 , Lisong Shen 3 , Weiwei Wang 3 , Daxiang Cui 4 , Jian Ni 4 , Xiaoyuan Chen 5 , Wanwan Li 1
Affiliation  

Suspension arrays based on optical encoded microspheres have attracted great attention for multiplexed detection in gene analysis, protein profiling, early disease diagnosis, treatment monitoring and so on. However, the fluorescence stability of barcodes and detection sensitivity require further improvement to meet the increasing demands of "precision diagnosis". Methods: This work reports a novel suspension array platform based on extremely stable AIEgens (AIE33 and AIE NIR800) microbeads as barcodes and AIEgens (1,1,2,3,4,5-Hexaphenyl-1H-silole, HPS) nanobeads as fluorescent signal reporter coupled with flow cytometry for multiplexed detection. Results: Due to the excellent fluorescent signal amplification effect of the HPS nanobeads, our multiplex assay showed enhanced detection sensitivity, compared to multiplex assay using QDs nanobeads (up to 3-fold improvement) and commercial organic dye of phycoerythrin (up to 5-fold improvement) as the fluorescent signal reporters. Conclusion: Furthermore, validating experiments showed similar detection performance to the clinical gold-standard method of ImmunoCAP for allergen detection in patient serum samples, demonstrating the suspension array platform based on AIEgens microbeads with excellent fluorescence stability and AIEgens nanobeads with strong signal amplification ability is promising for high-sensitivity multiplexed bioassay applications.

中文翻译:

AIEgens条形码与AIEgens纳米珠相结合,可实现高灵敏度的多重检测。

基于光学编码微球的悬架阵列在基因分析,蛋白质谱分析,疾病早期诊断,治疗监测等方面的多重检测引起了广泛的关注。但是,条形码的荧光稳定性和检测灵敏度需要进一步提高以满足“精确诊断”的不断增长的需求。方法:这项工作报告了一种新型悬浮阵列平台,该平台基于极稳定的AIEgens(AIE33和AIE NIR800)微珠作为条形码,以及AIEgens(1,1,2,3,4,5-六苯基-1H-silole,HPS)纳米珠作为荧光信号报告器与流式细胞仪结合进行多重检测。结果:由于HPS纳米珠具有出色的荧光信号放大效果,因此我们的多重测定显示出增强的检测灵敏度,与使用QDs纳米珠(提高3倍)和藻红蛋白的商业有机染料(提高5倍)作为荧光信号报告物的多重分析相比。结论:此外,验证实验显示与ImmunoCAP临床金标准方法在患者血清样品中过敏原检测方面的检测性能相似,证明了基于具有出色荧光稳定性的AIEgens微珠和具有强大信号放大能力的AIEgens纳米珠的悬浮阵列平台是有前途的用于高灵敏度的多重生物测定应用。
更新日期:2019-09-25
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