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Ultrasonic-assisted electrodeposition of Cu-Sn-TiO2 nanocomposite coatings with enhanced antibacterial activity.

ABSTRACT: Copper-based coatings are known for their high antibacterial activity. In this study, nanocomposite Cu-Sn-TiO2 coatings were obtained by electrodeposition from an oxalic acid bath additionally containing 4 g/dm3 TiO2 with mechanical and ultrasonic agitation. Ultrasound treatment was performed at 26 kHz frequency and 32 W/dm3 power. The influence of agitation mode and the current load on the inclusion and distribution of the TiO2 phase in the Cu-Sn metallic matrix were evaluated. Results indicated that ultrasonic agitation decreases agglomeration of TiO2 particles and allows for the deposition of dense Cu-Sn-TiO2 nanocomposites. It is shown that nanocomposite Cu-Sn-TiO2 coatings formed by ultrasonic-assisted electrodeposition exhibit excellent antimicrobial properties against E. coli bacteria.

SUBMITTER: Kharitonov DS 

PROVIDER: S-EPMC8233381 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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Ultrasonic-assisted electrodeposition of Cu-Sn-TiO<sub>2</sub> nanocomposite coatings with enhanced antibacterial activity.

Kharitonov Dmitry S DS   Kasach Aliaksandr A AA   Sergievich Denis S DS   Wrzesińska Angelika A   Bobowska Izabela I   Darowicki Kazimierz K   Zielinski Artur A   Ryl Jacek J   Kurilo Irina I II  

Ultrasonics sonochemistry 20210519

Copper-based coatings are known for their high antibacterial activity. In this study, nanocomposite Cu-Sn-TiO<sub>2</sub> coatings were obtained by electrodeposition from an oxalic acid bath additionally containing 4 g/dm<sup>3</sup> TiO<sub>2</sub> with mechanical and ultrasonic agitation. Ultrasound treatment was performed at 26 kHz frequency and 32 W/dm<sup>3</sup> power. The influence of agitation mode and the current load on the inclusion and distribution of the TiO<sub>2</sub> phase in the  ...[more]

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