期刊
ANALYTICAL CHEMISTRY
卷 94, 期 2, 页码 577-582出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.1c04263
关键词
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资金
- Natural Sciences and Engineering Research Council of Canada [NSERC RGPIN-2019-03960, NSERC RGPIN-2019-00024, NSERC RGPIN2019-05509]
- National Natural Science Foundation of China [NSFC22174098]
- Key Research and Development Program of Tianjin [20YFZCSN00530]
Raman spectroscopy is a powerful tool for studying cellular heterogeneity, but its application in single-cell analysis is limited by low signal-to-noise ratio. In this study, a simple and reliable spectral recovery conditional generative adversarial network (SRGAN) is developed to improve the SNR and reduce data acquisition time. The performance of SRGAN is tested on the classification of five major foodborne bacteria based on single-cell Raman spectra, achieving a significantly higher identification accuracy compared to unprocessed spectra. SRGAN has the potential to enhance the throughput of Raman spectroscopy and enable real-time monitoring of single living cells.
Raman spectroscopy is a powerful tool to investigate cellular heterogeneity. However, Raman spectra for single-cell analysis are hindered by a low signal-to-noise ratio (SNR). Here, we demonstrate a simple and reliable spectral recovery conditional generative adversarial network (SRGAN). SRGAN reduced the data acquisition time by 1 order of magnitude (i.e., 30 vs 3 s) by improving the SNR by a factor of similar to 6. We classified five major foodborne bacteria based on single-cell Raman spectra to further evaluate the performance of SRGAN. Spectra processed using SRGAN achieved an identification accuracy of 94.9%, compared to 60.5% using unprocessed Raman spectra. SRGAN can accelerate spectral collection to improve the throughput of Raman spectroscopy and enable real-time monitoring of single living cells.
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