Autor segons l'article: Herrero-Medina Z; Wang P; Lielpetere A; Bashammakh AS; Alyoubi AO; Katakis I; Conzuelo F; Schuhmann W
Departament: Enginyeria Química
Autor/s de la URV: Herrero Medina, Zaida Nair / Katakis, Ioanis
Paraules clau: 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
Resum: 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.
Àrees temàtiques: 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
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: zaida.herrero@estudiants.urv.cat zaida.herrero@estudiants.urv.cat zaida.herrero@estudiants.urv.cat ioanis.katakis@urv.cat
Identificador de l'autor: 0000-0003-4259-7098
Data d'alta del registre: 2024-09-07
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/pii/S1567539422000792?via%3Dihub
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Bioelectrochemistry. 146 108128-
Referència 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 de l'article: 10.1016/j.bioelechem.2022.108128
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2022
Tipus de publicació: Journal Publications