Attomolar detection of a cancer biomarker protein in serum by surface plasmon resonance using superparamagnetic particle labels.
Attomolar detection of a cancer biomarker protein in serum by surface plasmon resonance using superparamagnetic particle labels.
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DOI:
10.1002/anie.201005607
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发表时间:
2011-02-01
影响因子:
16.6
通讯作者:
Rusling, James F.
中科院分区:
文献类型:
--
作者:
Krishnan, Sadagopan;Mani, Vigneshwaran;Wasalathanthri, Dhanuka;Kumar, Challa V.;Rusling, James F.
Methods to measure protein biomarkers with ultralow detection limit (DL) and high sensitivity promise to provide valuable tools for early diagnosis of diseases such as cancer, and for monitoring therapy and post-surgical recurrence.[i, ii] Surface plasmon resonance (SPR) utilizing nanoparticle-antibody labels for signal amplification in immunoassays is an emerging approach for detecting proteins in biomedical samples.[iii–x] Herein, we show for the first time that clustering of superparamagnetic labels on SPR surfaces leads to unprecedented sensitivity and ultralow DL for protein biomarkers in serum. Specifically, antibody bioconjugates on 1 µm diameter superparamagnetic particles (MP) used for offline antigen capture enabled SPR detection of cancer biomarker prostate specific antigen (PSA) in serum at an ultralow DL of 10 fg mL
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影响因子:
9.9
作者:
STENBERG, E;PERSSON, B;URBANICZKY, C
通讯作者:
URBANICZKY, C
影响因子:
7.4
作者:
Soelberg, Scott D.;Stevens, Richard C.;Limaye, Ajit P.;Furlong, Clement E.
通讯作者:
Furlong, Clement E.
影响因子:
2.7
作者:
Souche, Y;Wagner, E;Santos, AD
通讯作者:
Santos, AD
DOI:
10.1039/c0an00204f
发表时间:
2010-10
期刊:
The Analyst
影响因子:
--
作者:
Rusling JF;Kumar CV;Gutkind JS;Patel V
通讯作者:
Patel V
影响因子:
7.4
作者:
Nelson, BP;Grimsrud, TE;Corn, RM
通讯作者:
Corn, RM