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    • 45. 发明授权
    • Methods and device for DNA sequencing using surface enhanced raman scattering (SERS)
    • 使用表面增强拉曼散射(SERS)进行DNA测序的方法和装置
    • US07476501B2
    • 2009-01-13
    • US10108128
    • 2002-03-26
    • Selena ChanXing SuTae-Woong Koo
    • Selena ChanXing SuTae-Woong Koo
    • C12Q1/68
    • C12Q1/6869B01L3/5027C12Q2565/60C12Q2565/631C12Q2565/632G01N21/658G01N33/587G01N2021/653G01N2021/656
    • The methods and apparatus disclosed herein concern nucleic acid sequencing by enhanced Raman spectroscopy. In certain embodiments of the invention, exonuclease treatment of the nucleic acids 109 results in the release of nucleotides 110. The nucleotides may pass from a reaction chamber 101 through a microfluidic channel 102 and enter a nanochannel or microchannel 103. The nanochannel or microchannel 103 may be packed with nanoparticle 111 aggregates containing hot spots for Raman detection. As the nucleotides 110 pass through the nanoparticle 111 hot spots, they may be detected by surface enhanced Raman spectroscopy (SERS), surface enhanced resonance Raman spectroscopy (SERRS) and/or coherent anti-Stokes Raman spectroscopy (CARS). Identification of the sequence of nucleotides 110 released from the nucleic acid 109 provides the nucleic acid sequence. Other embodiments of the invention concern apparatus 100 for nucleic acid sequencing.
    • 本文公开的方法和装置涉及通过增强拉曼光谱进行的核酸测序。 在本发明的某些实施方案中,核酸109的核酸外切酶处理导致核苷酸110的释放。核苷酸可以从反应室101通过微流体通道102并进入纳米通道或微通道103.纳米通道或微通道103可以 填充含有用于拉曼检测的热点的纳米颗粒111聚集体。 当核苷酸110通过纳米颗粒111热点时,它们可以通过表面增强拉曼光谱(SERS),表面增强共振拉曼光谱(SERRS)和/或相干抗斯托克斯拉曼光谱(CARS)来检测。 从核酸109释放的核苷酸序列110的鉴定提供了核酸序列。 本发明的其它实施方案涉及用于核酸测序的设备100。