Selectable Ultrasensitive Detection of Hg2+ with Rhodamine 6G-Modified Nanoporous Gold Optical Sensor

Zheng Wang; Min Yang; Chao Chen; Ling Zhang; Heping Zeng

doi:10.1038/srep29611

Selectable Ultrasensitive Detection of Hg²⁺ with Rhodamine 6G-Modified Nanoporous Gold Optical Sensor

Zheng Wang^*
, Min Yang
, Chao Chen
, Ling Zhang
, Heping Zeng

^*Corresponding author for this work

University of Shanghai for Science and Technology

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

An extremely sensitive fluorescence sensor has been developed for selectively detection of mercury ions based on metallophilic Hg²⁺ -Au⁺ interactions, which results in an effective release of pre-adsorbed rhodamine 6G (R6G) molecules from the nanoporous gold substrate, associated with a significant decrease of fluorescence intensity. The optical sensor has a detection sensitivity down to 0.6 pM for Hg²⁺ and CH₃Hg⁺ ions, in particular a superior selectivity in a complex aqueous system containing 13 different types of metal ions, meanwhile maintaining a long-term stability after 10 cycles. Such a fluorescence sensor combining multiple advantages therefore present promising potentials in various applications.

Original language	English
Article number	29611
Journal	Scientific Reports
Volume	6
DOIs	https://doi.org/10.1038/srep29611
State	Published - 12 Jul 2016
Externally published	Yes

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title = "Selectable Ultrasensitive Detection of Hg2+ with Rhodamine 6G-Modified Nanoporous Gold Optical Sensor",

abstract = "An extremely sensitive fluorescence sensor has been developed for selectively detection of mercury ions based on metallophilic Hg2+ -Au+ interactions, which results in an effective release of pre-adsorbed rhodamine 6G (R6G) molecules from the nanoporous gold substrate, associated with a significant decrease of fluorescence intensity. The optical sensor has a detection sensitivity down to 0.6 pM for Hg2+ and CH3Hg+ ions, in particular a superior selectivity in a complex aqueous system containing 13 different types of metal ions, meanwhile maintaining a long-term stability after 10 cycles. Such a fluorescence sensor combining multiple advantages therefore present promising potentials in various applications.",

author = "Zheng Wang and Min Yang and Chao Chen and Ling Zhang and Heping Zeng",

year = "2016",

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doi = "10.1038/srep29611",

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T1 - Selectable Ultrasensitive Detection of Hg2+ with Rhodamine 6G-Modified Nanoporous Gold Optical Sensor

AU - Wang, Zheng

AU - Yang, Min

AU - Chen, Chao

AU - Zhang, Ling

AU - Zeng, Heping

PY - 2016/7/12

Y1 - 2016/7/12

N2 - An extremely sensitive fluorescence sensor has been developed for selectively detection of mercury ions based on metallophilic Hg2+ -Au+ interactions, which results in an effective release of pre-adsorbed rhodamine 6G (R6G) molecules from the nanoporous gold substrate, associated with a significant decrease of fluorescence intensity. The optical sensor has a detection sensitivity down to 0.6 pM for Hg2+ and CH3Hg+ ions, in particular a superior selectivity in a complex aqueous system containing 13 different types of metal ions, meanwhile maintaining a long-term stability after 10 cycles. Such a fluorescence sensor combining multiple advantages therefore present promising potentials in various applications.

AB - An extremely sensitive fluorescence sensor has been developed for selectively detection of mercury ions based on metallophilic Hg2+ -Au+ interactions, which results in an effective release of pre-adsorbed rhodamine 6G (R6G) molecules from the nanoporous gold substrate, associated with a significant decrease of fluorescence intensity. The optical sensor has a detection sensitivity down to 0.6 pM for Hg2+ and CH3Hg+ ions, in particular a superior selectivity in a complex aqueous system containing 13 different types of metal ions, meanwhile maintaining a long-term stability after 10 cycles. Such a fluorescence sensor combining multiple advantages therefore present promising potentials in various applications.

UR - https://www.scopus.com/pages/publications/84978414649

U2 - 10.1038/srep29611

DO - 10.1038/srep29611

M3 - 文章

AN - SCOPUS:84978414649

SN - 2045-2322

VL - 6

JO - Scientific Reports

JF - Scientific Reports

M1 - 29611

ER -

Selectable Ultrasensitive Detection of Hg²⁺ with Rhodamine 6G-Modified Nanoporous Gold Optical Sensor

Abstract

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