Dual-Enhanced Plasmonic Biosensing for Point-of-Care Sepsis Detection.

Dual-Enhanced Plasmonic Biosensing for Point-of-Care Sepsis Detection.
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DOI:
10.1021/acsnano.2c10371
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发表时间:
2023-02-28
期刊:
影响因子:
17.1
通讯作者:
Im, Hyungsoon
Im, Hyungsoon
中科院分区:
材料科学1区
文献类型:
--
作者:
Chin, Lip Ket;Yang, Jun-Yeong;Chousterman, Benjamin;Jung, Sunghoon;Kim, Do-Geun;Kim, Dong-Ho;Lee, Seunghun;Castro, Cesar M.;Weissleder, Ralph;Park, Sung-Gyu;Im, Hyungsoon

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Rapid, sensitive, simultaneous quantification of multiple biomarkers in point-of-care (POC) settings could improve the diagnosis and management of sepsis, a common, potentially life-threatening condition. Compared to high-end commercial analytical systems, POC systems are often limited by low sensitivity, limited multiplexing capability, or low throughput. Here, we report an ultra-sensitive, multiplexed plasmonic sensing technology integrating chemifluorescence signal enhancement with plasmon-enhanced fluorescence detection. Using a portable imaging system, the dual chemical and plasmonic amplification enabled rapid analysis of multiple cytokine biomarkers in 1 hr with sub-pg/mL sensitivities. Furthermore, we also developed a plasmonic sensing chip based on nanoparticle-spiked gold nanodimple structures fabricated by wafer-scale batch processes. We used the system to detect six cytokines directly from clinical plasma samples (n = 20) and showed 100% accuracy for sepsis detection. The described technology could be employed in rapid, ultrasensitive, multiplexed plasmonic sensing in POC settings for myriad clinical conditions.
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