Fast-growing cyanobacteria bio-embedded into bacterial cellulose for toxic metal bioremediation.
Carbohydr Polym
; 295: 119881, 2022 Nov 01.
Article
en En
| MEDLINE
| ID: mdl-35988986
ABSTRACT
Cyanobacterial biomass and cellulose-based materials have been used separately as green bio-adsorbents for the removal of toxic metals from water. Hybrid materials made of living microbial cells encased in a solid matrix have shown good potential for bioremediation. Here, the fast-growing cyanobacterium Synechococcus elongatus UTEX 2973 was embedded in situ into bacterial cellulose (BC), a robust biopolymer rich in hydroxyl groups with excellent water holding capacity. The living material was obtained by injecting S. elongatus into a Komagataeibacter sucrofermentans culture producing BC. Several types of BC/S. elongatus (BC/SE) materials were developed including small spheroids and flat films with different cyanobacteria loads via simple adjustments of the biosynthesis process parameters. BC/SE spheroids were evaluated for toxic copper removal and exhibited excellent adsorption properties compared to pure BC with a maximum capacity of 156.25 mg g-1. Thus, this simple bio-embedding approach holds promises in the development of living materials for environmental applications.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Agua
/
Celulosa
Idioma:
En
Revista:
Carbohydr Polym
Año:
2022
Tipo del documento:
Article