Working Paper
Authors
- Evgeniia Khairullina St Petersburg University ,
- Karolis Ratautas Center for Physical Sciences and Technology ,
- Maxim Panov St Petersburg University ,
- Vladimir Andriianov St Petersburg University ,
- Sarunas Mickus Center for Physical Sciences and Technology ,
- Alina Manshina St Petersburg University ,
- Gediminas Račiukaitis Center for Physical Sciences and Technology ,
- Ilya Tumkin
St Petersburg University
Abstract
We developed a rapid and effective technique for fabrication of sensor-active copper-based materials on the surface of such flexible polymers as terephthalate, polyethylene naphthalate and polyimide using the method of laser surface modification. For this purpose, we optimized the polymer surface activation parameters using laser sources with a picosecond pulse duration for subsequent selective metallization within the activated region. Further, the fabricated copper structures were modified with gold nanostructures and by electrochemical passivation to produce copper-gold and oxide-containing copper species, respectively. As a result, in comparison with pure copper electrodes, these composite materials exhibit much better electrocatalytic performance concerning the non-enzymatic identification of biologically important disease markers as glucose, hydrogen peroxide and dopamine.
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