Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic

Herein a novel ratiometric fluorescence strategy based on enzyme-triggered inner filter effect (IFE) was described to sensitively detect mercury ions (Hg2+) for the first time by using l-proline-protected gold nanoclusters (AuNCs) and 2,3-diaminophenazine (DAP) as IFE fluorophore and absorber. The I...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Li, Wenjia [verfasserIn] Liu, Dong [verfasserIn] Bi, Xiaoya [verfasserIn] You, Tianyan [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	Ratiometric fluorescence Gold nanocluster Enzyme inhibition Inner filter effect Mercury(II) ions analysis

Übergeordnetes Werk:	Enthalten in: Sensors and actuators / A - Amsterdam [u.a.] : Elsevier Science, 1990, 302
Übergeordnetes Werk:	volume:302

DOI / URN:	10.1016/j.sna.2019.111794

Katalog-ID:	ELV003572455

Internformat


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245	1	0	\|a Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic
264		1	\|c 2019
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338			\|a Online-Ressource \|b cr \|2 rdacarrier
520			\|a Herein a novel ratiometric fluorescence strategy based on enzyme-triggered inner filter effect (IFE) was described to sensitively detect mercury ions (Hg2+) for the first time by using l-proline-protected gold nanoclusters (AuNCs) and 2,3-diaminophenazine (DAP) as IFE fluorophore and absorber. The IFE was derived from the overlap between the emission band of AuNCs and absorption band of DAP and confirmed by fluorescence lifetime decay tests. Based on IFE principle and ratiometric strategy, laccase (LACC)-catalyzed o-phenylenediamine (OPD) oxidation was utilized to produce DAP, whereas the activity of LACC can be monitored by Hg2+. In this way, the existence of Hg2+ could depress the emission of DAP while restore that of AuNCs, achieving the dual signal response of Hg2+, and their emission intensity ratio was dependent on the concentration of Hg2+. Under the optimized detection conditions, the linear range for Hg2+ determination was from 0.8 to 35 μM with a detection limit of 0.27 μM. Besides, it was successfully applied to the analysis of tap water and Yangtze river water. Our strategy can be used to assess the activity of LACC, and it also provided a novel way to construct other enzyme-based biosensors.
650		4	\|a Ratiometric fluorescence
650		4	\|a Gold nanocluster
650		4	\|a Enzyme inhibition
650		4	\|a Inner filter effect
650		4	\|a Mercury(II) ions analysis
700	1		\|a Liu, Dong \|e verfasserin \|4 aut
700	1		\|a Bi, Xiaoya \|e verfasserin \|4 aut
700	1		\|a You, Tianyan \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Sensors and actuators <Lausanne> / A \|d Amsterdam [u.a.] : Elsevier Science, 1990 \|g 302 \|h Online-Ressource \|w (DE-627)306710331 \|w (DE-600)1500729-7 \|w (DE-576)082435847 \|x 1873-3069 \|7 nnns
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912			\|a GBV_ILN_2014
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912			\|a GBV_ILN_2020
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912			\|a GBV_ILN_4333
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912			\|a GBV_ILN_4335
912			\|a GBV_ILN_4338
912			\|a GBV_ILN_4393
936	b	k	\|a 50.22 \|j Sensorik
951			\|a AR
952			\|d 302

Indexfelder

author_variant	w l wl d l dl x b xb t y ty
matchkey_str	article:18733069:2019----::nyergeeinritrfetnhfursecoglnncutrfraimtidtcinfecr
hierarchy_sort_str	2019
bklnumber	50.22
publishDate	2019
allfields	10.1016/j.sna.2019.111794 doi (DE-627)ELV003572455 (ELSEVIER)S0924-4247(19)31847-3 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl Li, Wenjia verfasserin aut Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Herein a novel ratiometric fluorescence strategy based on enzyme-triggered inner filter effect (IFE) was described to sensitively detect mercury ions (Hg2+) for the first time by using l-proline-protected gold nanoclusters (AuNCs) and 2,3-diaminophenazine (DAP) as IFE fluorophore and absorber. The IFE was derived from the overlap between the emission band of AuNCs and absorption band of DAP and confirmed by fluorescence lifetime decay tests. Based on IFE principle and ratiometric strategy, laccase (LACC)-catalyzed o-phenylenediamine (OPD) oxidation was utilized to produce DAP, whereas the activity of LACC can be monitored by Hg2+. In this way, the existence of Hg2+ could depress the emission of DAP while restore that of AuNCs, achieving the dual signal response of Hg2+, and their emission intensity ratio was dependent on the concentration of Hg2+. Under the optimized detection conditions, the linear range for Hg2+ determination was from 0.8 to 35 μM with a detection limit of 0.27 μM. Besides, it was successfully applied to the analysis of tap water and Yangtze river water. Our strategy can be used to assess the activity of LACC, and it also provided a novel way to construct other enzyme-based biosensors. Ratiometric fluorescence Gold nanocluster Enzyme inhibition Inner filter effect Mercury(II) ions analysis Liu, Dong verfasserin aut Bi, Xiaoya verfasserin aut You, Tianyan verfasserin aut Enthalten in Sensors and actuators <Lausanne> / A Amsterdam [u.a.] : Elsevier Science, 1990 302 Online-Ressource (DE-627)306710331 (DE-600)1500729-7 (DE-576)082435847 1873-3069 nnns volume:302 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik AR 302
spelling	10.1016/j.sna.2019.111794 doi (DE-627)ELV003572455 (ELSEVIER)S0924-4247(19)31847-3 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl Li, Wenjia verfasserin aut Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Herein a novel ratiometric fluorescence strategy based on enzyme-triggered inner filter effect (IFE) was described to sensitively detect mercury ions (Hg2+) for the first time by using l-proline-protected gold nanoclusters (AuNCs) and 2,3-diaminophenazine (DAP) as IFE fluorophore and absorber. The IFE was derived from the overlap between the emission band of AuNCs and absorption band of DAP and confirmed by fluorescence lifetime decay tests. Based on IFE principle and ratiometric strategy, laccase (LACC)-catalyzed o-phenylenediamine (OPD) oxidation was utilized to produce DAP, whereas the activity of LACC can be monitored by Hg2+. In this way, the existence of Hg2+ could depress the emission of DAP while restore that of AuNCs, achieving the dual signal response of Hg2+, and their emission intensity ratio was dependent on the concentration of Hg2+. Under the optimized detection conditions, the linear range for Hg2+ determination was from 0.8 to 35 μM with a detection limit of 0.27 μM. Besides, it was successfully applied to the analysis of tap water and Yangtze river water. Our strategy can be used to assess the activity of LACC, and it also provided a novel way to construct other enzyme-based biosensors. Ratiometric fluorescence Gold nanocluster Enzyme inhibition Inner filter effect Mercury(II) ions analysis Liu, Dong verfasserin aut Bi, Xiaoya verfasserin aut You, Tianyan verfasserin aut Enthalten in Sensors and actuators <Lausanne> / A Amsterdam [u.a.] : Elsevier Science, 1990 302 Online-Ressource (DE-627)306710331 (DE-600)1500729-7 (DE-576)082435847 1873-3069 nnns volume:302 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik AR 302
allfields_unstemmed	10.1016/j.sna.2019.111794 doi (DE-627)ELV003572455 (ELSEVIER)S0924-4247(19)31847-3 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl Li, Wenjia verfasserin aut Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Herein a novel ratiometric fluorescence strategy based on enzyme-triggered inner filter effect (IFE) was described to sensitively detect mercury ions (Hg2+) for the first time by using l-proline-protected gold nanoclusters (AuNCs) and 2,3-diaminophenazine (DAP) as IFE fluorophore and absorber. The IFE was derived from the overlap between the emission band of AuNCs and absorption band of DAP and confirmed by fluorescence lifetime decay tests. Based on IFE principle and ratiometric strategy, laccase (LACC)-catalyzed o-phenylenediamine (OPD) oxidation was utilized to produce DAP, whereas the activity of LACC can be monitored by Hg2+. In this way, the existence of Hg2+ could depress the emission of DAP while restore that of AuNCs, achieving the dual signal response of Hg2+, and their emission intensity ratio was dependent on the concentration of Hg2+. Under the optimized detection conditions, the linear range for Hg2+ determination was from 0.8 to 35 μM with a detection limit of 0.27 μM. Besides, it was successfully applied to the analysis of tap water and Yangtze river water. Our strategy can be used to assess the activity of LACC, and it also provided a novel way to construct other enzyme-based biosensors. Ratiometric fluorescence Gold nanocluster Enzyme inhibition Inner filter effect Mercury(II) ions analysis Liu, Dong verfasserin aut Bi, Xiaoya verfasserin aut You, Tianyan verfasserin aut Enthalten in Sensors and actuators <Lausanne> / A Amsterdam [u.a.] : Elsevier Science, 1990 302 Online-Ressource (DE-627)306710331 (DE-600)1500729-7 (DE-576)082435847 1873-3069 nnns volume:302 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik AR 302
allfieldsGer	10.1016/j.sna.2019.111794 doi (DE-627)ELV003572455 (ELSEVIER)S0924-4247(19)31847-3 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl Li, Wenjia verfasserin aut Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Herein a novel ratiometric fluorescence strategy based on enzyme-triggered inner filter effect (IFE) was described to sensitively detect mercury ions (Hg2+) for the first time by using l-proline-protected gold nanoclusters (AuNCs) and 2,3-diaminophenazine (DAP) as IFE fluorophore and absorber. The IFE was derived from the overlap between the emission band of AuNCs and absorption band of DAP and confirmed by fluorescence lifetime decay tests. Based on IFE principle and ratiometric strategy, laccase (LACC)-catalyzed o-phenylenediamine (OPD) oxidation was utilized to produce DAP, whereas the activity of LACC can be monitored by Hg2+. In this way, the existence of Hg2+ could depress the emission of DAP while restore that of AuNCs, achieving the dual signal response of Hg2+, and their emission intensity ratio was dependent on the concentration of Hg2+. Under the optimized detection conditions, the linear range for Hg2+ determination was from 0.8 to 35 μM with a detection limit of 0.27 μM. Besides, it was successfully applied to the analysis of tap water and Yangtze river water. Our strategy can be used to assess the activity of LACC, and it also provided a novel way to construct other enzyme-based biosensors. Ratiometric fluorescence Gold nanocluster Enzyme inhibition Inner filter effect Mercury(II) ions analysis Liu, Dong verfasserin aut Bi, Xiaoya verfasserin aut You, Tianyan verfasserin aut Enthalten in Sensors and actuators <Lausanne> / A Amsterdam [u.a.] : Elsevier Science, 1990 302 Online-Ressource (DE-627)306710331 (DE-600)1500729-7 (DE-576)082435847 1873-3069 nnns volume:302 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik AR 302
allfieldsSound	10.1016/j.sna.2019.111794 doi (DE-627)ELV003572455 (ELSEVIER)S0924-4247(19)31847-3 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl Li, Wenjia verfasserin aut Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Herein a novel ratiometric fluorescence strategy based on enzyme-triggered inner filter effect (IFE) was described to sensitively detect mercury ions (Hg2+) for the first time by using l-proline-protected gold nanoclusters (AuNCs) and 2,3-diaminophenazine (DAP) as IFE fluorophore and absorber. The IFE was derived from the overlap between the emission band of AuNCs and absorption band of DAP and confirmed by fluorescence lifetime decay tests. Based on IFE principle and ratiometric strategy, laccase (LACC)-catalyzed o-phenylenediamine (OPD) oxidation was utilized to produce DAP, whereas the activity of LACC can be monitored by Hg2+. In this way, the existence of Hg2+ could depress the emission of DAP while restore that of AuNCs, achieving the dual signal response of Hg2+, and their emission intensity ratio was dependent on the concentration of Hg2+. Under the optimized detection conditions, the linear range for Hg2+ determination was from 0.8 to 35 μM with a detection limit of 0.27 μM. Besides, it was successfully applied to the analysis of tap water and Yangtze river water. Our strategy can be used to assess the activity of LACC, and it also provided a novel way to construct other enzyme-based biosensors. Ratiometric fluorescence Gold nanocluster Enzyme inhibition Inner filter effect Mercury(II) ions analysis Liu, Dong verfasserin aut Bi, Xiaoya verfasserin aut You, Tianyan verfasserin aut Enthalten in Sensors and actuators <Lausanne> / A Amsterdam [u.a.] : Elsevier Science, 1990 302 Online-Ressource (DE-627)306710331 (DE-600)1500729-7 (DE-576)082435847 1873-3069 nnns volume:302 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik AR 302
language	English
source	Enthalten in Sensors and actuators <Lausanne> / A 302 volume:302
sourceStr	Enthalten in Sensors and actuators <Lausanne> / A 302 volume:302
format_phy_str_mv	Article
bklname	Sensorik
institution	findex.gbv.de
topic_facet	Ratiometric fluorescence Gold nanocluster Enzyme inhibition Inner filter effect Mercury(II) ions analysis
dewey-raw	530
isfreeaccess_bool	false
container_title	Sensors and actuators <Lausanne> / A
authorswithroles_txt_mv	Li, Wenjia @@aut@@ Liu, Dong @@aut@@ Bi, Xiaoya @@aut@@ You, Tianyan @@aut@@
publishDateDaySort_date	2019-01-01T00:00:00Z
hierarchy_top_id	306710331
dewey-sort	3530
id	ELV003572455
language_de	englisch
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author	Li, Wenjia
spellingShingle	Li, Wenjia ddc 530 bkl 50.22 misc Ratiometric fluorescence misc Gold nanocluster misc Enzyme inhibition misc Inner filter effect misc Mercury(II) ions analysis Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic
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topic_title	530 620 DE-600 50.22 bkl Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic Ratiometric fluorescence Gold nanocluster Enzyme inhibition Inner filter effect Mercury(II) ions analysis
topic	ddc 530 bkl 50.22 misc Ratiometric fluorescence misc Gold nanocluster misc Enzyme inhibition misc Inner filter effect misc Mercury(II) ions analysis
topic_unstemmed	ddc 530 bkl 50.22 misc Ratiometric fluorescence misc Gold nanocluster misc Enzyme inhibition misc Inner filter effect misc Mercury(II) ions analysis
topic_browse	ddc 530 bkl 50.22 misc Ratiometric fluorescence misc Gold nanocluster misc Enzyme inhibition misc Inner filter effect misc Mercury(II) ions analysis
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title	Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic
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title_full	Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic
author_sort	Li, Wenjia
journal	Sensors and actuators <Lausanne> / A
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author_browse	Li, Wenjia Liu, Dong Bi, Xiaoya You, Tianyan
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doi_str_mv	10.1016/j.sna.2019.111794
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title_sort	enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(ii) ions via a dual-signal responsive logic
title_auth	Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic
abstract	Herein a novel ratiometric fluorescence strategy based on enzyme-triggered inner filter effect (IFE) was described to sensitively detect mercury ions (Hg2+) for the first time by using l-proline-protected gold nanoclusters (AuNCs) and 2,3-diaminophenazine (DAP) as IFE fluorophore and absorber. The IFE was derived from the overlap between the emission band of AuNCs and absorption band of DAP and confirmed by fluorescence lifetime decay tests. Based on IFE principle and ratiometric strategy, laccase (LACC)-catalyzed o-phenylenediamine (OPD) oxidation was utilized to produce DAP, whereas the activity of LACC can be monitored by Hg2+. In this way, the existence of Hg2+ could depress the emission of DAP while restore that of AuNCs, achieving the dual signal response of Hg2+, and their emission intensity ratio was dependent on the concentration of Hg2+. Under the optimized detection conditions, the linear range for Hg2+ determination was from 0.8 to 35 μM with a detection limit of 0.27 μM. Besides, it was successfully applied to the analysis of tap water and Yangtze river water. Our strategy can be used to assess the activity of LACC, and it also provided a novel way to construct other enzyme-based biosensors.
abstractGer	Herein a novel ratiometric fluorescence strategy based on enzyme-triggered inner filter effect (IFE) was described to sensitively detect mercury ions (Hg2+) for the first time by using l-proline-protected gold nanoclusters (AuNCs) and 2,3-diaminophenazine (DAP) as IFE fluorophore and absorber. The IFE was derived from the overlap between the emission band of AuNCs and absorption band of DAP and confirmed by fluorescence lifetime decay tests. Based on IFE principle and ratiometric strategy, laccase (LACC)-catalyzed o-phenylenediamine (OPD) oxidation was utilized to produce DAP, whereas the activity of LACC can be monitored by Hg2+. In this way, the existence of Hg2+ could depress the emission of DAP while restore that of AuNCs, achieving the dual signal response of Hg2+, and their emission intensity ratio was dependent on the concentration of Hg2+. Under the optimized detection conditions, the linear range for Hg2+ determination was from 0.8 to 35 μM with a detection limit of 0.27 μM. Besides, it was successfully applied to the analysis of tap water and Yangtze river water. Our strategy can be used to assess the activity of LACC, and it also provided a novel way to construct other enzyme-based biosensors.
abstract_unstemmed	Herein a novel ratiometric fluorescence strategy based on enzyme-triggered inner filter effect (IFE) was described to sensitively detect mercury ions (Hg2+) for the first time by using l-proline-protected gold nanoclusters (AuNCs) and 2,3-diaminophenazine (DAP) as IFE fluorophore and absorber. The IFE was derived from the overlap between the emission band of AuNCs and absorption band of DAP and confirmed by fluorescence lifetime decay tests. Based on IFE principle and ratiometric strategy, laccase (LACC)-catalyzed o-phenylenediamine (OPD) oxidation was utilized to produce DAP, whereas the activity of LACC can be monitored by Hg2+. In this way, the existence of Hg2+ could depress the emission of DAP while restore that of AuNCs, achieving the dual signal response of Hg2+, and their emission intensity ratio was dependent on the concentration of Hg2+. Under the optimized detection conditions, the linear range for Hg2+ determination was from 0.8 to 35 μM with a detection limit of 0.27 μM. Besides, it was successfully applied to the analysis of tap water and Yangtze river water. Our strategy can be used to assess the activity of LACC, and it also provided a novel way to construct other enzyme-based biosensors.
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title_short	Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic
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doi_str	10.1016/j.sna.2019.111794
up_date	2024-07-06T20:04:22.236Z
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Enzyme-triggered inner filter effect on the fluorescence of gold nanoclusters for ratiometric detection of mercury(II) ions via a dual-signal responsive logic

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