Bacillussp. based nano-bio hybrids for efficient water remediation. (1st June 2023)

• Record Type: Journal Article
• Authors: Deb, Madhurima; Redkar, Neha; Manohar, Cathrine Sumathi; Jagtap, Ashok Shivaji; Saxena, Sumit; Shukla, Shobha
• Is Part Of: Environmental pollution. Volume 326(2023)
• Publication Date: 2023-06-01
• Subjects: Macroalgae-associated bacteria -- Marine Bacillus -- Graphene oxide -- Dye degradation -- Phytotoxicity; Pollution -- Periodicals; Pollution -- Environmental aspects -- Periodicals; Environmental Pollution -- Periodicals; Pollution -- Périodiques; Pollution -- Aspect de l'environnement -- Périodiques; Pollution -- Effets physiologiques -- Périodiques; Pollution; Pollution -- Environmental aspects; Periodicals; Electronic journals; 363.73
• DOI: 10.1016/j.envpol.2023.121490
• Languages: English
• ISSNs: 0269-7491

Abstract

Abstract: Macroalgae are a diverse group of primary producers that offer indispensable ecosystem services towards bacterial colonization and proliferation in aquatic biomes. Macroalgae/bacteria interactions are complex in natural biomes and contribute mutually to their growth and biotechnological outcomes. Most findings on macroalgae-associated bacteria and their secreted enzymes have largely been limited to nutraceutical applications. Here, in this study, we demonstrate and investigate the growth of Bacillus sp. (macroalgae-associated bacteria) with the substitution of its associated macroalgae ( Gracilaria corticata) on graphene oxide (GO). The findings indicated that the presence of wrinkles of GO nanosheets resulted in cell proliferation and adherence without causing mechanical damage to the cell membrane. Furthermore, the assembly of GO-marine bacteria was explored for organic pollutant treatment using methylene blue (MB) as a model dye. The degradation results suggest the breakdown of MB into non-toxic byproducts as suggested by the phytotoxicity assay. Graphical abstract: Image 1 Highlights: Facile route to degradation of organic molecules by macroalgae associated Bacillus sp. Graphene Oxide a novel 2D nanoecosystem for macroalgae associated Bacillus sp. Phytotoxicity assay suggests breakdown of MB into non-toxic byproducts. Faster degradation of MB.