Label-free, multiplexed detection of bacterial tmRNA using silicon photonic microring resonators.

Label-free, multiplexed detection of bacterial tmRNA using silicon photonic microring resonators.
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DOI:
10.1016/j.bios.2012.03.037
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发表时间:
2012-06
影响因子:
12.6
通讯作者:
Bailey, Ryan C.
Bailey, Ryan C.
中科院分区:
工程技术1区
文献类型:
--
作者:
Scheler, Ott;Kindt, Jared T.;Qavi, Abraham J.;Kaplinski, Lauris;Glynn, Barry;Barry, Thomas;Kurg, Ants;Bailey, Ryan C.

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提出了一种利用硅光子微谐振器阵列对细菌转移信使RNA(tmRNA)进行灵敏检测和识别的无标记生物传感方法。物种特异性tmRNA分子被共价连接到传感器表面的互补DNA捕获探针靶向。特异性杂交通过观察每个单独的微球的共振波长偏移来近实时地监测。生物传感平台的灵敏度允许检测低至53 fmol的肺炎链球菌tmRNA,相当于约3.16 × 107 CFU的细菌。这种生物传感方法的简单性和可扩展性使其成为一种有前途的工具,用于通过tmRNA分析快速,无PCR鉴定不同的细菌。
A label-free biosensing method for the sensitive detection and identification of bacterial transfer-messenger RNA (tmRNA) is presented employing arrays of silicon photonic microring resonators. Species specific tmRNA molecules are targeted by complementary DNA capture probes that are covalently attached to the sensor surface. Specific hybridization is monitored in near real-time by observing the resonance wavelength shift of each individual microring. The sensitivity of the biosensing platform allowed for detection down to 53 fmol of Streptococcus pneumoniae tmRNA, equivalent to approximately 3.16 × 107 CFU of bacteria. The simplicity and scalability of this biosensing approach makes it a promising tool for the rapid, PCR-free identification of different bacteria via tmRNA profiling.
用于定量细胞因子检测和 T 细胞分泌分析的硅光子微环谐振器。
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