A dual platform for selective analyte enrichment and ionization in mass spectrometry using aptamer-conjugated graphene oxide.
A dual platform for selective analyte enrichment and ionization in mass spectrometry using aptamer-conjugated graphene oxide.
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DOI:
10.1021/ja109042w
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发表时间:
2010-12-15
影响因子:
15
通讯作者:
Tan W
中科院分区:
文献类型:
--
作者:
Gulbakan B;Yasun E;Shukoor MI;Zhu Z;You M;Tan X;Sanchez H;Powell DH;Dai H;Tan W
This study demonstrates the use of aptamer-conjugated graphene oxide as an affinity extraction and detection platform for analytes from complex biological media. We have shown that cocaine and adenosine can be selectively enriched from plasma samples and that direct mass spectrometric readout can be obtained without a matrix and with greatly improved signal-to-noise ratios. The aptamer conjugated graphene oxide has clear advantages in target enrichment and in generating highly efficient ionization of target molecules for mass spectrometry. These results demonstrate the utility of the approach for analysis of small molecules in real biological samples.
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DOI:
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发表时间:
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