Plasmonic Metasurfaces Based on Nanopin-Cavity Resonator for   Quantitative Colorimetric Ricin Sensing

doi:10.1002/smll.201601710

CORC > 北京大学 > 信息科学技术学院

	Plasmonic Metasurfaces Based on Nanopin-Cavity Resonator for Quantitative Colorimetric Ricin Sensing
	Fan, Jiao-Rong ; Zhu, Jia ; Wu, Wen-Gang ; Huang, Yun
刊名	SMALL
	2017
关键词	colorimetric sensors,gold nanopins,multicolor variation,ricin,surface plasmon GOLD NANOPARTICLE PROBES FABRICATION BIOSENSOR TOXINS ASSAY FOOD
DOI	10.1002/smll.201601710
英文摘要	In view of the toxic potential of a bioweapon threat, rapid visual recognition and sensing of ricin has been of considerable interest while remaining a challenging task up to date. In this study, a gold nanopin-based colorimetric sensor is developed realizing a multicolor variation for ricin qualitative recognition and analysis. It is revealed that such plasmonic metasurfaces based on nanopin-cavity resonator exhibit reflective color appearance, due to the excitation of standing-wave resonances of narrow bandwidth in visible region. This clear color variation is a consequence of the reflective color mixing defined by different resonant wavelengths. In addition, the colored metasurfaces appear sharp color difference in a narrow refractive index range, which makes them especially well-suited for sensing applications. Therefore, this antibody-functionalized nanopin-cavity biosensor features high sensitivity and fast response, allowing for visual quantitative ricin detection within the range of 10-120 ng mL(-1) (0.15 x 10(-9)-1.8 x 10(-9) m), a limit of detection of 10 ng mL(-1), and the typical measurement time of less than 10 min. The on-chip integration of such nanopin metasurfaces to portable colorimetric microfluidic device may be envisaged for the quantitative studies of a variety of biochemical molecules.; National Key Laboratory Foundation; National Basic Research Program of China (973 Program) [2015CB352100]; National Natural Science Foundation of China [61474006]; Doctoral Program Foundation of State Education Ministry [20130001110007]; SCI(E); PubMed; ARTICLE; 1; 13
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/492679]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Fan, Jiao-Rong,Zhu, Jia,Wu, Wen-Gang,et al. Plasmonic Metasurfaces Based on Nanopin-Cavity Resonator for Quantitative Colorimetric Ricin Sensing[J]. SMALL,2017.
APA	Fan, Jiao-Rong,Zhu, Jia,Wu, Wen-Gang,&Huang, Yun.(2017).Plasmonic Metasurfaces Based on Nanopin-Cavity Resonator for Quantitative Colorimetric Ricin Sensing.SMALL.
MLA	Fan, Jiao-Rong,et al."Plasmonic Metasurfaces Based on Nanopin-Cavity Resonator for Quantitative Colorimetric Ricin Sensing".SMALL (2017).