A feedback-controlling digital microfluidic fluorimetric sensor device for simple and rapid detection of mercury (II) in costal seawater
| Autor: | Yunhua Wang, Guoxia Zheng, Jingmei Yin, Xiaolin Zhang, Qian Zhang, Xingcai Zhang, Lan Jiang, Peng Zhang, Shuang Han |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Salinity Microfluidics chemistry.chemical_element 010501 environmental sciences Aquatic Science Oceanography 01 natural sciences Rapid detection Miniaturization Fluorometry Seawater Digital microfluidics Process engineering 0105 earth and related environmental sciences Fluorescent Dyes business.industry 010604 marine biology & hydrobiology Parts-per notation Equipment Design Mercury Pollution Mercury (element) chemistry Control system Environmental science Feasibility Studies business Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Marine pollution bulletin. 144 |
| ISSN: | 1879-3363 |
| Popis: | By combination of miniaturization potential of digital microfluidics (DMF) and sensitivity of fluorescence probe, an integrated sensor device has been initially constructed for mercury detection in coastal waters. The actuation feature of the detecting target, seawater droplet, which remains unclear, was basically explored. To overcome a potential risk of driven failure, induced by diversity ion ingredients in seawater, a feedback control loop was included into control system. Analyzing method for coastal waters was well established on DMF, which showed satisfied stability and selectivity in Hg sensing under high salinity condition, with the sensitivity of Hg2+ at the parts per billion level and total testing time less than 20s. With the advantages of being fast, amenable to automation and low cost, this device is promising for the formation of simple and rapid sensor device, especially for a routine monitoring and emergency detection of Hg/or other metals in coastal waters. |
| Databáze: | OpenAIRE |
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