Plasmon-Enhanced Biosensing for Multiplexed Profiling of Extracellular Vesicles.
Plasmon-Enhanced Biosensing for Multiplexed Profiling of Extracellular Vesicles.
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DOI:
10.1002/adbi.202000003
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发表时间:
2020-12
影响因子:
4.1
通讯作者:
Im H
中科院分区:
文献类型:
--
作者:
Min J;Son T;Hong JS;Cheah PS;Wegemann A;Murlidharan K;Weissleder R;Lee H;Im H
Extracellular vesicles (EVs)—nanoscale phospholipid vesicles secreted by cells—present new opportunities for molecular diagnosis from non-invasive liquid biopsies. Single EV protein analysis could be extremely valuable in studying EVs as circulating cancer biomarkers, but it is technically challenging due to weak detection signals associated with limited amounts of epitopes and small surface areas for antibody labeling. Here, we report a new, simple method that enables multiplexed analyses of EV markers with improved sensitivities. Specifically, we implement plasmon-enhanced fluorescence detection that amplifies fluorescence signals using surface plasmon resonances excited by periodic gold nanohole structures. We showed fluorescence signals in multiple channels are amplified by one order of magnitude, and both transmembrane and intravesicular markers can be detected at the single EV level. This approach could offer additional insight into understanding subtypes, heterogeneity, and production dynamics of EVs during disease development and progression. Plasmon-enhanced fluorescence detection on plasmonic Au nanohole arrays (nPLEX-FL) enables sensitive, multiplexed analysis of extracellular vesicles. Cell-derived EVs are captured on Au nanohole arrays and labeled by fluorophore-conjugated antibodies. The fluorescence signals are then amplified by surface plasmon resonances excited by the underlying Au nanoholes, which lead to sensitive single EV detection.
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DOI:
10.1002/anie.201806901
发表时间:
2018-11-26
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Shen W;Guo K;Adkins GB;Jiang Q;Liu Y;Sedano S;Duan Y;Yan W;Wang SE;Bergersen K;Worth D;Wilson EH;Zhong W
通讯作者:
Zhong W
影响因子:
17.1
作者:
Lee K;Fraser K;Ghaddar B;Yang K;Kim E;Balaj L;Chiocca EA;Breakefield XO;Lee H;Weissleder R
通讯作者:
Weissleder R
DOI:
10.1016/j.bbadis.2014.10.008
发表时间:
2015-01
影响因子:
6.2
作者:
Ailawadi, Shaina;Wang, Xiaohong;Gu, Haitao;Fan, Guo-Chang
通讯作者:
Fan, Guo-Chang
影响因子:
7
作者:
Park J;Im H;Hong S;Castro CM;Weissleder R;Lee H
通讯作者:
Lee H
DOI:
10.1007/s11468-013-9660-5
发表时间:
2014
期刊:
Plasmonics (Norwell, Mass.)
影响因子:
--
作者:
Bauch M;Toma K;Toma M;Zhang Q;Dostalek J
通讯作者:
Dostalek J