A Simple and Effective Visual Fluorescent Sensing Paper-Based Chip for the Ultrasensitive Detection of Mercury Ions in Environmental Water
Traces of mercury ions in environmental water can harm humans and animals. Paper-based visual detection methods have been widely developed for the rapid detection of mercury ions; however, existing methods are not sensitive enough to be used in real environments. Here, we developed a novel, simple a...
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| Published in | Sensors (Basel, Switzerland) Vol. 23; no. 6; p. 3094 |
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| Main Authors | , , , , , , , , , |
| Format | Journal Article |
| Language | English |
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MDPI AG
14.03.2023
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| Abstract | Traces of mercury ions in environmental water can harm humans and animals. Paper-based visual detection methods have been widely developed for the rapid detection of mercury ions; however, existing methods are not sensitive enough to be used in real environments. Here, we developed a novel, simple and effective visual fluorescent sensing paper-based chip for the ultrasensitive detection of mercury ions in environmental water. CdTe-quantum-dots-modified silica nanospheres were firmly absorbed by and anchored to the fiber interspaces on the paper’s surface to effectively avoid the unevenness caused by liquid evaporation. The fluorescence of quantum dots emitted at 525 nm can be selectively and efficiently quenched with mercury ions, and the ultrasensitive visual fluorescence sensing results attained using this principle can be captured using a smartphone camera. This method has a detection limit of 2.83 µg/L and a fast response time (90 s). We successfully achieved the trace spiking detection of seawater (from three regions), lake water, river water and tap water with recoveries in the range of 96.8–105.4% using this method. This method is effective, low-cost, user-friendly and has good prospects for commercial application. Additionally, the work is expected to be utilized in the automated big data collection of large numbers of environmental samples. |
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| AbstractList | Traces of mercury ions in environmental water can harm humans and animals. Paper-based visual detection methods have been widely developed for the rapid detection of mercury ions; however, existing methods are not sensitive enough to be used in real environments. Here, we developed a novel, simple and effective visual fluorescent sensing paper-based chip for the ultrasensitive detection of mercury ions in environmental water. CdTe-quantum-dots-modified silica nanospheres were firmly absorbed by and anchored to the fiber interspaces on the paper’s surface to effectively avoid the unevenness caused by liquid evaporation. The fluorescence of quantum dots emitted at 525 nm can be selectively and efficiently quenched with mercury ions, and the ultrasensitive visual fluorescence sensing results attained using this principle can be captured using a smartphone camera. This method has a detection limit of 2.83 µg/L and a fast response time (90 s). We successfully achieved the trace spiking detection of seawater (from three regions), lake water, river water and tap water with recoveries in the range of 96.8–105.4% using this method. This method is effective, low-cost, user-friendly and has good prospects for commercial application. Additionally, the work is expected to be utilized in the automated big data collection of large numbers of environmental samples. Traces of mercury ions in environmental water can harm humans and animals. Paper-based visual detection methods have been widely developed for the rapid detection of mercury ions; however, existing methods are not sensitive enough to be used in real environments. Here, we developed a novel, simple and effective visual fluorescent sensing paper-based chip for the ultrasensitive detection of mercury ions in environmental water. CdTe-quantum-dots-modified silica nanospheres were firmly absorbed by and anchored to the fiber interspaces on the paper's surface to effectively avoid the unevenness caused by liquid evaporation. The fluorescence of quantum dots emitted at 525 nm can be selectively and efficiently quenched with mercury ions, and the ultrasensitive visual fluorescence sensing results attained using this principle can be captured using a smartphone camera. This method has a detection limit of 2.83 µg/L and a fast response time (90 s). We successfully achieved the trace spiking detection of seawater (from three regions), lake water, river water and tap water with recoveries in the range of 96.8-105.4% using this method. This method is effective, low-cost, user-friendly and has good prospects for commercial application. Additionally, the work is expected to be utilized in the automated big data collection of large numbers of environmental samples.Traces of mercury ions in environmental water can harm humans and animals. Paper-based visual detection methods have been widely developed for the rapid detection of mercury ions; however, existing methods are not sensitive enough to be used in real environments. Here, we developed a novel, simple and effective visual fluorescent sensing paper-based chip for the ultrasensitive detection of mercury ions in environmental water. CdTe-quantum-dots-modified silica nanospheres were firmly absorbed by and anchored to the fiber interspaces on the paper's surface to effectively avoid the unevenness caused by liquid evaporation. The fluorescence of quantum dots emitted at 525 nm can be selectively and efficiently quenched with mercury ions, and the ultrasensitive visual fluorescence sensing results attained using this principle can be captured using a smartphone camera. This method has a detection limit of 2.83 µg/L and a fast response time (90 s). We successfully achieved the trace spiking detection of seawater (from three regions), lake water, river water and tap water with recoveries in the range of 96.8-105.4% using this method. This method is effective, low-cost, user-friendly and has good prospects for commercial application. Additionally, the work is expected to be utilized in the automated big data collection of large numbers of environmental samples. |
| Audience | Academic |
| Author | Li, Bowei Fu, Longwen Xiang, Jiawen Han, Jinglong Wang, Liyan Chen, Lingxin Liu, Huajun Sun, Xiyan Wang, Xiaoyan Qi, Ji |
| AuthorAffiliation | 3 Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 264003, China 1 School of Environment and Materials Engineering, Yantai University, Yantai 264005, China 2 CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China |
| AuthorAffiliation_xml | – name: 2 CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China – name: 1 School of Environment and Materials Engineering, Yantai University, Yantai 264005, China – name: 3 Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 264003, China |
| Author_xml | – sequence: 1 givenname: Jinglong surname: Han fullname: Han, Jinglong – sequence: 2 givenname: Huajun surname: Liu fullname: Liu, Huajun – sequence: 3 givenname: Ji orcidid: 0000-0001-9732-3145 surname: Qi fullname: Qi, Ji – sequence: 4 givenname: Jiawen surname: Xiang fullname: Xiang, Jiawen – sequence: 5 givenname: Longwen surname: Fu fullname: Fu, Longwen – sequence: 6 givenname: Xiyan surname: Sun fullname: Sun, Xiyan – sequence: 7 givenname: Liyan surname: Wang fullname: Wang, Liyan – sequence: 8 givenname: Xiaoyan surname: Wang fullname: Wang, Xiaoyan – sequence: 9 givenname: Bowei surname: Li fullname: Li, Bowei – sequence: 10 givenname: Lingxin orcidid: 0000-0002-3764-3515 surname: Chen fullname: Chen, Lingxin |
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| CitedBy_id | crossref_primary_10_1016_j_diamond_2025_112158 crossref_primary_10_1007_s10895_024_04062_4 crossref_primary_10_1021_acs_inorgchem_4c04672 crossref_primary_10_3390_inorganics11090373 crossref_primary_10_1007_s41204_024_00376_7 crossref_primary_10_1021_acsami_4c03846 crossref_primary_10_1039_D4AY00293H |
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| Keywords | silica nanospheres paper-based chips CdTe quantum dots rapid detection mercury ions |
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| SubjectTerms | CdTe quantum dots Ethanol Fluorescence mercury ions Nanomaterials Nanoparticles Onsite paper-based chips Quantum dots rapid detection Silica silica nanospheres Smartphones Software |
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| Title | A Simple and Effective Visual Fluorescent Sensing Paper-Based Chip for the Ultrasensitive Detection of Mercury Ions in Environmental Water |
| URI | https://www.ncbi.nlm.nih.gov/pubmed/36991805 https://www.proquest.com/docview/2791721800 https://www.proquest.com/docview/2792907318 https://pubmed.ncbi.nlm.nih.gov/PMC10058424 https://doaj.org/article/9a4c831f69af4e06b6d882dc7ccdfb0b |
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