Xiangyang Shao, Xiaoli Liu, Lianzi Yu, Xiuzhi Yu, Jianhua Hu
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A fluorescence-based lateral flow immunoassay using AIEgen-encapsulated nanoparticles to rapidly and sensitively detect pro-gastrin-releasing peptide
A fluorescence lateral flow immunoassay (F-LFIA) is presented using nanoparticles with encapsulated molecules whose emission is caused by aggregation as the fluorescent label to quantitatively detect gastrin-releasing peptide precursor (proGRP) in serum. The detection system was optimized to achieve a broad linear detection range of 10 ~ 5000 pg/mL and a detection limit of 6 pg/mL for F-LFIA. The proposed method exhibited good sensitivity, specificity, and reproducibility. The performance and applicability of the F-LFIA were evaluated in the analysis of 183 human serum samples, and the results were strongly correlated with those of the electrochemiluminescence immunoassay. The proposed F-LFIA can serve as a precise and rapid detection method to detect proGRP and has potential for the early diagnosis of small-cell lung cancer (SCLC).
期刊介绍：
As a peer-reviewed journal for analytical sciences and technologies on the micro- and nanoscale, Microchimica Acta has established itself as a premier forum for truly novel approaches in chemical and biochemical analysis. Coverage includes methods and devices that provide expedient solutions to the most contemporary demands in this area. Examples are point-of-care technologies, wearable (bio)sensors, in-vivo-monitoring, micro/nanomotors and materials based on synthetic biology as well as biomedical imaging and targeting.
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