The M.V. Lomonosov Institute of Fine Chemical Technologies, RTU MIREA, and Tula State University have developed biosensors based on metal electrodes to assess the concentration of organic substances in water. This was reported by the press service of RTU MIREA.
The sensors allow for highly accurate assessment of the biochemical oxygen demand (BOD) index – an indicator that determines the concentration of organic substances dissolved in water. It is important for assessing the ecological state of industrial and natural sites.
The sensors are bioelectrochemical sensors with copper nanostructured electrodes. During the experiments, scientists immersed a measuring system with fixed microorganisms in an aqueous medium to record changes in metabolic processes. This approach allows analysis in a few minutes.
The created mini-sensors demonstrate high sensitivity and good correlation with the traditional method of measuring the biochemical oxygen demand level BOD5 in surface water samples, which depends on the organic content. This study is the first to demonstrate the successful use of metal electrodes as the basis for biosensor systems, which can be used as compact, highly sensitive sensors for rapid water quality analysis.
Earlier, www1.ru reported that in Tolyatti they tested a drone for water body research.
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