Combining 2D organic and 1D inorganic nanoblocks to develop free-standing hybrid nanomembranes for conformable biosensors
Por:
García-Torres JM, Lazaro, C, Sylla, D, Lanzalaco, S, Ginebra MP and Aleman, C
Publicada:
1 oct 2023
Ahead of Print:
1 mar 2022
Categoría:
Chemistry (miscellaneous)
Resumen:
We report a simple approach to fabricate free-standing perforated 2D nanomembranes hosting well-ordered 1D metallic nanostructures to obtain hybrid materials with nanostructured surfaces for flexible electronics. Nanomembranes are formed by alternatively depositing perforated poly(lactic acid) (PLA) and poly(3,4-ethylenedioxythiophene) layers. Copper metallic nanowires (NWs) were incorporated into the nanoperforations of the top PLA layer by electrodeposition and further coated with silver via a transmetallation reaction. The combination of 2D polymeric nanomembranes and aligned 1D metallic NWs allows merging the flexibility and conformability of the ultrathin soft polymeric nanomembranes with the good electrical properties of metals for biointegrated electronic devices. Thus, we were able to tailor the nanomembrane surface chemistry as it was corroborated by SEM, EDX, XPS, CV, EIS and contact angle. The obtained hybrid nanomembranes were flexible and conformable showing sensing capacity towards H2O2 with good linear concentration range (0.35-10 mM), sensitivity (120 mu A cm(-2) mM(-1)) and limit of detection (7 mu m). Moreover, the membranes showed good stability, reproducibility and selectivity towards H2O2.
Filiaciones:
García-Torres JM:
Univ Politecn Catalunya UPC, Dept Mat Sci & Engn, Biomat Biomech & Tissue Engn Grp, Barcelona 08019, Spain
Univ Politecn Catalunya UPC, Res Ctr Biomed Engn, Barcelona 08019, Spain
Univ Politecn Cataluna, Barcelona Res Ctr Multiscale Sci & Engn, Barcelona 08019, Spain
Inst Recerca St Joan de Deu, Barcelona 08034, Spain
Lazaro, C:
Univ Politecn Cataluna, Dept Engn Quim, EEBE, C Eduard Maristany 10-14, Barcelona 08019, Spain
Sylla, D:
IREC Catalonia Inst Energy Res, St Adria De Beses 08930, Spain
Lanzalaco, S:
Univ Politecn Cataluna, Barcelona Res Ctr Multiscale Sci & Engn, Barcelona 08019, Spain
Univ Politecn Cataluna, Dept Engn Quim, EEBE, C Eduard Maristany 10-14, Barcelona 08019, Spain
Ginebra MP:
Univ Politecn Catalunya UPC, Dept Mat Sci & Engn, Biomat Biomech & Tissue Engn Grp, Barcelona 08019, Spain
Univ Politecn Catalunya UPC, Res Ctr Biomed Engn, Barcelona 08019, Spain
Univ Politecn Cataluna, Barcelona Res Ctr Multiscale Sci & Engn, Barcelona 08019, Spain
Barcelona Inst Sci & Technol BIST, Inst Bioengn Catalonia IBEC, Baldiri Reixac 10-12, Barcelona 08028, Spain
Aleman, C:
Univ Politecn Cataluna, Barcelona Res Ctr Multiscale Sci & Engn, Barcelona 08019, Spain
Univ Politecn Cataluna, Dept Engn Quim, EEBE, C Eduard Maristany 10-14, Barcelona 08019, Spain
Barcelona Inst Sci & Technol BIST, Inst Bioengn Catalonia IBEC, Baldiri Reixac 10-12, Barcelona 08028, Spain
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