Autor según el artículo: Herrero-Medina Z; Wang P; Lielpetere A; Bashammakh AS; Alyoubi AO; Katakis I; Conzuelo F; Schuhmann W
Departamento: Enginyeria Química
Autor/es de la URV: Herrero Medina, Zaida Nair / Katakis, Ioanis
Palabras clave: Redox polymers Photosynthetic electron-transport Photocurrent Chlorella vulgaris Boronic acid Biophotovoltaics water redox polymers photosystem-ii photocurrent generation epoxides electrochemical characterization cyanobacteria communication chlorella vulgaris boronic acid
Resumen: Green microalgae are gaining attention in the renewable energy field due to their ability to convert light into energy in biophotovoltaic (BPV) cells. The poor exogenous electron transfer kinetics of such microorganisms requires the use of redox mediators to improve the performance of related biodevices. Redox polymers are advantageous in the development of subcellular-based BPV devices by providing an improved electron transfer while simultaneously serving as immobilization matrix. However, these surface-confined redox mediators have been rarely used in microorganism-based BPVs. Since electron transfer relies on the proximity between cells and the redox centres at the polymer matrix, the development of molecularly tailored surfaces is of great significance to fabricate more efficient BPV cells. We propose a bioanode integrating Chlorella vulgaris embedded in an Os complex-modified redox polymer. Chlorella vulgaris cells are functionalized with 3-aminophenylboronic acid that exhibits high affinity to saccharides in the cell wall as a basis for an improved integration with the redox polymer. Maximum photocurrents of (5 ± 1) µA cm−2 are achieved. The developed bioanode is further coupled to a bilirubin oxidase-based biocathode for a proof-of-concept BPV cell. The obtained results encourage the optimization of electron-transfer pathways toward the development of advanced microalgae-based biophotovoltaic devices.
Áreas temáticas: Química Physical and theoretical chemistry Medicine (miscellaneous) Materiais Farmacia Engenharias iv Electrochemistry Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Biotecnología Biophysics Biology Biochemistry & molecular biology Astronomia / física
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: zaida.herrero@estudiants.urv.cat zaida.herrero@estudiants.urv.cat zaida.herrero@estudiants.urv.cat ioanis.katakis@urv.cat
Identificador del autor: 0000-0003-4259-7098
Fecha de alta del registro: 2024-07-20
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
Enlace a la fuente original: https://www.sciencedirect.com/science/article/pii/S1567539422000792?via%3Dihub
URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Bioelectrochemistry. 146 108128-
Referencia de l'ítem segons les normes APA: Herrero-Medina Z; Wang P; Lielpetere A; Bashammakh AS; Alyoubi AO; Katakis I; Conzuelo F; Schuhmann W (2022). A biophotoelectrode based on boronic acid-modified Chlorella vulgaris cells integrated within a redox polymer. Bioelectrochemistry, 146(), 108128-. DOI: 10.1016/j.bioelechem.2022.108128
DOI del artículo: 10.1016/j.bioelechem.2022.108128
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2022
Tipo de publicación: Journal Publications
Repositori URV