Carbon nanomaterial-treated cell cultures of Nostoc flagelliforme produce exopolysaccharides with ameliorative physio-chemical properties

Environmental and Health Impacts of Graphene and Other Two-Dimensional Materials: A Graphene Flagship Perspective

“…Another study in Nostoc f lagelliforme found that GO, graphene and two types of multiwalled carbon nanotubes (MWCNTs) altered monosaccharide compositions and functional groups of exosaccharides, and improved cellular superoxide dismutase and catalase activities. 146 The study of the potential impacts of 2D materials on freshwater algae has also been extended to TMDs. MoS 2 tested on C. vulgaris at 1 mg/L resulted as toxic, as it inhibited its growth by causing a decrease in chlorophyll a content and an increase in oxidative stress and membrane damage.…”

“…The authors suggested that extracellular polymeric substances (EPS) produced by the diatom and forming the biofilms could change the interaction modalities of the materials with the organisms. Another study in Nostoc flagelliforme found that GO, graphene and two types of multiwalled carbon nanotubes (MWCNTs) altered monosaccharide compositions and functional groups of exosaccharides, and improved cellular superoxide dismutase and catalase activities …”

Application of Nanomaterials in the Production of Biomolecules in Microalgae: A Review

“…(Chlorophyta, Trebouxiophyceae) UJ-3 was significantly increased when the cells were treated with low concentrations of Fe 3 O 4 nanoparticles (NPs), whereas total lipid content was increased at high concentrations of Fe 3 O 4 NPs [11]. In another study, carbon nanomaterials (CNMs) at a proper concentration could enhance cell growth and EPS production of Nostoc flagelliforme (Cyanophyceae) as well as improve the functional activities of the EPS [12]. In addition, some NMs exhibited excellent light-harvesting abilities, which could compensate for the shortcoming of underutilization of light in microalgae cultivation [13,14].…”

“…NMs, having a small size and extremely large surface area, show a strong interaction with cell walls and result in cell wall thinning or disruption, which improves the metabolite harvesting rate [15][16][17]. However, these extracted compounds, such as astaxanthin [18] and EPS [12], were also found to contain the NM traces. These residues may have effects on the functional properties of metabolites or have health risks.…”

Exploitation of inland salt lake water by dilution and nutrient enrichment to cultivate Vischeria sp. WL1 (Eustigmatophyceae) for biomass and oil production

“…Microalgae are an important group of photoautotrophic microorganisms that live in marine, freshwater and soil ecosystems. They can produce and accumulate value-added biochemicals, such as oils, pigments, proteins and carbohydrates [5] , [6] , [7] , [8] , [9] . The microalgae that grow in salt lakes, such as Tetraselmis and Dunaliella strains, have been isolated for producing glycerol and oil [ 10 , 11 ].…”