Metabolic Fingerprinting on a Plasmonic Gold Chip for Mass Spectrometry Based in Vitro Diagnostics.

Metabolic Fingerprinting on a Plasmonic Gold Chip for Mass Spectrometry Based in Vitro Diagnostics.
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DOI:
10.1021/acscentsci.7b00546
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发表时间:
2018-02-28
影响因子:
18.2
通讯作者:
Qian K
Qian K
中科院分区:
化学1区
文献类型:
--
作者:
Sun X;Huang L;Zhang R;Xu W;Huang J;Gurav DD;Vedarethinam V;Chen R;Lou J;Wang Q;Wan J;Qian K

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Current metabolic analysis is far from ideal to engage clinics and needs rationally designed materials and device. Here we developed a novel plasmonic chip for clinical metabolic fingerprinting. We first constructed a series of chips with gold nanoshells on the surface through controlled particle synthesis, dip-coating, and gold sputtering for mass production. We integrated the optimized chip with microarrays for laboratory automation and micro-/nanoscaled experiments, which afforded direct high-performance metabolic fingerprinting by laser desorption/ionization mass spectrometry using 500 nL of various biofluids and exosomes. Further we for the first time demonstrated on-chip in vitro metabolic diagnosis of early stage lung cancer patients using serum and exosomes. This work initiates a new bionanotechnology based platform for advanced metabolic analysis toward large-scale diagnostic use. A plasmonic chip was constructed for mass spectrometry based metabolic fingerprinting of biofluids and exosomes, toward large-scale diagnostic use.
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