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Instant water toxicity detection based on magnetically-constructed electrochemically active biofilm.
Zhao, Hongyu; Zang, Yuxuan; Xie, Beizhen; Zhao, Ting; Cao, Bo; Wu, Jing; Ge, Yanhong; Yi, Yue; Liu, Hong.
Afiliación
  • Zhao H; Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China; International Joint Research Center of Aerospace Biotechnology and Medical Engineering, Beihang University, Beijing, 100191, China; Beijin
  • Zang Y; Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China; International Joint Research Center of Aerospace Biotechnology and Medical Engineering, Beihang University, Beijing, 100191, China; Beijin
  • Xie B; Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China; International Joint Research Center of Aerospace Biotechnology and Medical Engineering, Beihang University, Beijing, 100191, China; Beijin
  • Zhao T; Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China; International Joint Research Center of Aerospace Biotechnology and Medical Engineering, Beihang University, Beijing, 100191, China; Beijin
  • Cao B; Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China; International Joint Research Center of Aerospace Biotechnology and Medical Engineering, Beihang University, Beijing, 100191, China; Beijin
  • Wu J; Medical and Health Analysis Center, Peking University, Beijing, 100191, China.
  • Ge Y; Infore Environment Technology Group, Foshan, 528000, Guangdong Province, China.
  • Yi Y; School of Life, Beijing Institute of Technology, 100081, China. Electronic address: yueyi@bit.edu.cn.
  • Liu H; Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China; International Joint Research Center of Aerospace Biotechnology and Medical Engineering, Beihang University, Beijing, 100191, China; Beijin
Biosens Bioelectron ; 242: 115745, 2023 Dec 15.
Article en En | MEDLINE | ID: mdl-37832348
Water toxicity determination with electrochemically active bacteria (EAB) is promising in the early warning of water pollution. However, limited by tedious biofilm formation, natural EAB biofilms are uncapable of the instant detection of water toxicity, resulting in the failure for the emergency monitoring of water pollution. To solve this problem, a novel method for the rapid construction of EAB biofilms using magnetic adsorption was established, and the performance of instant water toxicity detection with magnetically-constructed EAB biofilm was investigated. The results demonstrate that EAB biofilms were magnetically constructed in less than 30 min, and magnetically-constructed EAB biofilm generated stable currents even under continuous flow conditions. Magnetically-constructed EAB biofilms realized instant water toxicity detection, and the sensitivity increased with the decrease of magnetic field intensity. Low magnetic field intensity resulted in a loose biofilm structure, which is conducive to toxic pollutant penetration. The detection limit for Cu2+, phenol, and Cd2+ achieved 0.07 mg/L with optimal magnetic field intensity, and the detection time was less than 30 min. This study broadens the application of water toxicity determination with EAB, and establishes a foundation for the instant and continuous detection of water toxicity with EAB.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Agua / Técnicas Biosensibles Idioma: En Revista: Biosens Bioelectron Asunto de la revista: BIOTECNOLOGIA Año: 2023 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Agua / Técnicas Biosensibles Idioma: En Revista: Biosens Bioelectron Asunto de la revista: BIOTECNOLOGIA Año: 2023 Tipo del documento: Article Pais de publicación: Reino Unido