A Universal Biofilm Reactor Sensor for the Determination of Biochemical Oxygen Demand of Different Water Areas

Wang, Liang; Lv, Huan; Yang, Qian; Chen, Yiliang; Wei, Junjie; Chen, Yiyuan; Peng, Ci’en; Liu, Changyu; Xu, Xiaolong; Jia, Jianbo

doi:10.3390/molecules27155046

Cited by 5 publications

(3 citation statements)

References 35 publications

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“…Wang et al developed a simple strategy to prepare a biofilm reactor sensor for the determination of biochemical oxygen demand [5]. In their work, the microorganisms in fresh water were domesticated by artificial seawater with different salinity gradients successively to prepare the biofilm reactor sensor, which exhibited an efficient ability to degrade a variety of organic substances.…”

Section: Resultsmentioning

confidence: 99%

Recent Advances in Functional Nanomaterials for Electrochemical Sensors and Biosensors

Luo

2023

Molecules

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Section: Resultsmentioning

confidence: 99%

Recent Advances in Functional Nanomaterials for Electrochemical Sensors and Biosensors

Luo

2023

Molecules

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“…The biofilm reactor is a promising development, as it requires minimal maintenance and is easy to operate. And the cultivation of microorganisms on the electrode in solutions with increasing salinity makes it possible to monitor BOD in both fresh and salt water [ 129 ].…”

Section: Biofilms As Recognition Elements Of Biosensorsmentioning

confidence: 99%

Microbial Biofilms: Features of Formation and Potential for Use in Bioelectrochemical Devices

Perchikov,

Cheliukanov,

Plekhanova

et al. 2024

Biosensors

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Microbial biofilms present one of the most widespread forms of life on Earth. The formation of microbial communities on various surfaces presents a major challenge in a variety of fields, including medicine, the food industry, shipping, etc. At the same time, this process can also be used for the benefit of humans—in bioremediation, wastewater treatment, and various biotechnological processes. The main direction of using electroactive microbial biofilms is their incorporation into the composition of biosensor and biofuel cells This review examines the fundamental knowledge acquired about the structure and formation of biofilms, the properties they have when used in bioelectrochemical devices, and the characteristics of the formation of these structures on different surfaces. Special attention is given to the potential of applying the latest advances in genetic engineering in order to improve the performance of microbial biofilm-based devices and to regulate the processes that take place within them. Finally, we highlight possible ways of dealing with the drawbacks of using biofilms in the creation of highly efficient biosensors and biofuel cells.

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“…In Ref. [20], a biofilm reactor was developed for BOD determination. The microbial source used for biofilm creation was Weiming pond water.…”

Section: Introductionmentioning

confidence: 99%

Targeted Formation of Biofilms on the Surface of Graphite Electrodes as an Effective Approach to the Development of Biosensors for Early Warning Systems

Kharkova,

Perchikov,

Kurbanalieva

et al. 2024

Biosensors

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Biofilms based on bacteria Pseudomonas veronii (Ps. veronii) and Escherichia coli (E. coli) and yeast Saccharomyces cerevisiae (S. cerevisiae) were used for novel biosensor creation for rapid biochemical oxygen demand (BOD) monitoring. Based on the electrochemical measurement results, it was shown that the endogenous mediator in the matrix of E. coli and Ps. veronii biofilms and ferrocene form a two-mediator system that improves electron transport in the system. Biofilms based on Ps. veronii and E. coli had a high biotechnological potential for BOD assessment; bioreceptors based on such biofilms had high sensitivity (the lower limits of detectable BOD5 concentrations were 0.61 (Ps. veronii) and 0.87 (E. coli) mg/dm3) and high efficiency of analysis (a measurement time 5–10 min). The maximum biosensor response based on bacterial biofilms has been observed in the pH range of 6.6–7.2. The greatest protective effect was found for biofilms based on E. coli, which has high long-term stability (151 days for Ps. veronii and 163 days for E. coli). The results of the BOD5 analysis of water samples obtained using the developed biosensors had a high correlation with the results of the standard 5-day method (R2 = 0.9820, number of tested samples is 10 for Ps. veronii, and R2 = 0.9862, number of tested samples is 10 for E. coli). Thus, biosensors based on Ps. veronii biofilms and E. coli biofilms could be a novel analytical system to give early warnings of pollution.

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A Universal Biofilm Reactor Sensor for the Determination of Biochemical Oxygen Demand of Different Water Areas

Cited by 5 publications

References 35 publications

Recent Advances in Functional Nanomaterials for Electrochemical Sensors and Biosensors

Recent Advances in Functional Nanomaterials for Electrochemical Sensors and Biosensors

Microbial Biofilms: Features of Formation and Potential for Use in Bioelectrochemical Devices

Targeted Formation of Biofilms on the Surface of Graphite Electrodes as an Effective Approach to the Development of Biosensors for Early Warning Systems

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