Electroactive Biofilms of Activated Sludge Microorganisms on a Nanostructured Surface as the Basis for a Highly Sensitive Biochemical Oxygen Demand Biosensor. - Saniyat Kurbanalieva; Vyacheslav A. Arlyapov; Anna Kharkova; Roman Perchikov; Olga Kamanina; Pavel V. Melnikov; Nadezhda M. Popova; Andrey V. Machulin; Sergey Tarasov; Evgeniya Saverina; Anatoly Vereshchagin; Anatoly Reshetilov (Sensors, 2022)