Study on the differences in sludge toxicity and microbial community structure caused by catechol, resorcinol and hydroquinone with metagenomic analysis

Chen, Xiurong; Hu, Xueyang; Lu, Quanling; Yang, Yingying; Linghu, Shanshan; Zhang, Xinyu

doi:10.1016/j.jenvman.2021.114027

Cited by 19 publications

(10 citation statements)

References 38 publications

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“…Thereby, the effect of GO film on the composition of gut microbial community was further investigated (Figure D–F). Clearly, at the phylum level, Proteobacteria, as one of the crucial degradation bacterial taxa for benzene rings containing compounds (e.g., phenolic compounds), occupied the dominant share in the gut microbial community under the GO-fed conditions (Figure D). Similarly, gut microbial community shift at the family level in the GO-fed groups was mainly associated with Enterobacteriaceae (Figures E and S7C,D).…”

Section: Resultsmentioning

confidence: 99%

Biodegradation of Graphene Oxide by Insects (Tenebrio molitor Larvae): Role of the Gut Microbiome and Enzymes

Liu

Zhao

Lü

et al. 2022

Environ. Sci. Technol.

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Biodegradation of graphene materials is critical for understanding their environmental process and fate. Thus, biodegradation and mineralization of graphene oxide (GO) by an insect (yellow mealworms, Tenebrio molitor larvae) were investigated. Twenty mealworms could eat up a piece of GO film (1.5 × 1.5 cm) in 15 days. The ingested GO film underwent degradation, and the residual GO sheets were observed in the frass. Raman imaging confirmed that the residual GO (I D /I G , 1.16) was more defective than the pristine GO film (I D /I G , 0.95). 14 C analysis showed that GO sheets were partially mineralized into CO 2 (0.26%) and assimilated into biomass compositions (e.g., lipid and protein) (0.36%). Gut microbes and extracellular enzymes in yellow mealworms played crucial roles in GO degradation, and the predominant gut microbes for GO biodegradation were identified as Enterobacteriaceae bacteria (e.g., Escherichia−Shigella sp.). Two biodegradation products belonging to hydroxylated or carboxylated aromatic compounds were formed with the assistance of electrons and hydroxyl radicals in mealworm guts. These findings are useful for better understanding the environmental and biological fate of graphene materials.

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Section: Resultsmentioning

confidence: 99%

Biodegradation of Graphene Oxide by Insects (Tenebrio molitor Larvae): Role of the Gut Microbiome and Enzymes

Liu

Zhao

Lü

et al. 2022

Environ. Sci. Technol.

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“…However, the RFL system is toxic and hazardous to personal health, such as respiratory irritation symptoms and skin damage for long-term exposure to low concentrations of resorcinol. In addition, serious poisoning or death is going to occur because of exposure to a high concentration of resorcinol for a long time [ 6 ]. In order to find an environmentally friendly way to improve the adhesion between fiber and rubber, various process methods have been carried out.…”

Section: Introductionmentioning

confidence: 99%

Highly Strong Interface Adhesion of Polyester Fiber Rubber Composite via Fiber Surface Modification by Meta-Cresol/Formaldehyde Latex Dipping Emulsion

et al. 2023

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As a skeleton material, polyester (PET) fiber can significantly improve the strength and durability of rubber composites, but the interfacial adhesion between polyester fiber and rubber is poor due to the chemical inertia of PET fiber surface. Resorcinol-formaldehyde-latex (RFL) impregnating solution is usually used to treat PET fibers, but RFL contains toxic components such as resorcinol, which is harmful to the human body. A simple and less toxic resin-impregnating system cresol-formaldehyde-latex (CFL) was obtained by alternating resorcinol with low-toxicity cresol and m-cresol formaldehyde resin was synthesized from m-cresol and formaldehyde. CFL (m-cresol formaldehyde resin latex) systems with different C/F mole ratios and CF resin/latex ratios were adopted to modify the surface of PET fibers. The strip peeling adhesive and the H pull-out test results indicated that the PET fiber/rubber adhesion strength increased with the increase in the formaldehyde dosage and the CF resin content, and the peeling force value and the H-pull-out force of treated PET/rubber composites reached 7.3 N/piece and 56.8 N, respectively. The optimal choice of CFL adhesive system was obtained, when the C/F mole ratio was 1/2 and the CF resin/latex weight ratio was 0.23. This environment-friendly CFL dipping emulsion can be used as a new surface modification strategy as it can remarkably enhance the interfacial adhesion of PET/rubber composites.

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“…Recently, we identified a non-toxic Schiff base oxidovanadium(V) complex (N-(salicylideneaminato)-N -(2-hydroxyethyl)ethane-1,2-diamine) containing a hydrophobic and sterically hindered catecholate ligand (3,5-di-tert-butylcatecholato ligand) which is effective against several cancer cell types including glioma multiforme, an aggressive brain cancer (T98g), lung cancer cells (A549), pancreas cancer cells (PANC-1), cultured human bone cancer cells, breast cancer (MDA-MB-231), and human foreskin fibroblasts (HFF-1) [33,34,44,45]. Several catecholate ligands have been reported to be toxic [46][47][48] and, as a result, either more or less potent than their parent vanadium complexes [32,33]. In contrast to the parent catecholate, the sterically hindered catechol 3,5-di-tert-butylcatechol in a complex has been reported to be less toxic in female Swiss mice [45].…”

Section: Introductionmentioning

confidence: 99%

Exploring Growth of Mycobacterium smegmatis Treated with Anticarcinogenic Vanadium Compounds

et al. 2022

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A major problem with patient treatments using anticancer compounds is accompanying bacterial infections, which makes more information on how such compounds impact bacterial growth desirable. In the following study, we investigated the growth effects of an anticancerous non-toxic Schiff base oxidovanadium(V) complex (N-(salicylideneaminato)-N′-(2-hydroxyethyl)ethane-1,2-diamine) coordinated to the 3,5-di-tert-butylcatecholato ligand on a representative bacterium, Mycobacterium smegmatis (M. smeg). We prepared the Schiff base V-complexes as reported previously and selected a few complexes to develop a V-complex series. Biological studies of M. smeg growth inhibition were complemented by spectroscopic studies using UV-Vis spectrophotometry and NMR spectroscopy to determine which complexes were intact under biologically relevant conditions. We specifically chose to examine (1) the growth effects of Schiff base oxidovanadium complexes coordinated to a catechol, (2) the growth effects of respective free catecholates on M. smeg, and (3) to identify complexes where the metal coordination complex was more potent than the ligand alone under biological conditions. Results from these studies showed that the observed effects of Schiff base V-catecholate complex are a combination of catechol properties including toxicity, hydrophobicity, and sterics.

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Study on the differences in sludge toxicity and microbial community structure caused by catechol, resorcinol and hydroquinone with metagenomic analysis

Cited by 19 publications

References 38 publications

Biodegradation of Graphene Oxide by Insects (Tenebrio molitor Larvae): Role of the Gut Microbiome and Enzymes

Biodegradation of Graphene Oxide by Insects (Tenebrio molitor Larvae): Role of the Gut Microbiome and Enzymes

Highly Strong Interface Adhesion of Polyester Fiber Rubber Composite via Fiber Surface Modification by Meta-Cresol/Formaldehyde Latex Dipping Emulsion

Exploring Growth of Mycobacterium smegmatis Treated with Anticarcinogenic Vanadium Compounds

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