Development of a hybrid cell for energy production

D Del Castillo; G Arroyo; J Escorza; Y Angulo; A Debut; K Vizuete; A Izquierdo; M Arias

doi:10.1088/1361-6528/ac0c3e

Development of a hybrid cell for energy production

Nanotechnology. 2021 Jul 20;32(41). doi: 10.1088/1361-6528/ac0c3e.

Authors

D Del Castillo¹, G Arroyo², J Escorza³, Y Angulo², A Debut², K Vizuete², A Izquierdo², M Arias²

Affiliations

¹ Carrera de Ingeniería en Biotecnología, Departamento de Ciencias de la Vida, Universidad de las Fuerzas Armadas ESPE, PO BOX 231B, Sangolquí, Ecuador.
² Centro de Nanociencia y Nanotecnología, Universidad de las Fuerzas Armadas ESPE, PO BOX 231B, Sangolquí, Ecuador.
³ Maestría de Nanotecnología, Centro de Postgrado, Universidad de las Fuerzas Armadas ESPE, PO BOX 231B, Sangolquí, Ecuador.

PMID: 34285145
DOI: 10.1088/1361-6528/ac0c3e

Abstract

This study focuses on the development of a new hybrid biological material to be applied in the production of electrical energy. These organo-metallic cells are constituted by cyanobacteria (Fischerella muscicola) and silver nanoparticles (AgNPs). AgNPs were obtained by green synthesis using the extract of the fruit of theBerberis halliiplant as reducing agent with two different concentrations of silver nitrate (AgNO₃), 1 and 10 mM. The morphology, physicochemical and electrical properties of the cyanobacteria with and without AgNPs were evaluated. To verify the efficacy of this new material, and the effect of the medium used, Nitrofoska or BG-11, the growth kinetics was evaluated by UV-vis up tot= 63 d with and without renewal of the culture medium and O₂/CO₂exchange. Through morphological characterizations ofFischerella muscicolait was possible to identify the presence of an associated bacterium identified using molecular techniques asPseudomona guguanensithat could act as a supporting organism in the growth of this cyanobacteria. The studies carried out did not shown cell toxicity for the cultures that have AgNPs and on the other hand, it was observed that the hybrid cells (Cy-AgNPs) are electron carriers recording an increase of up to 57% and 18% in their electrical potential with BG-11 and Nitrofoska culture media, respectively and an increase in the anodic current peak of 6.5% of Cy-AgNPs respect to onlyF. musicola.

Keywords: AgNPs; Fischerella muscicola; energy; hybrid cell; power cell.