Sorption characteristics of<i>N</i>-acyl homserine lactones as signal molecules in natural soils based on the analysis of kinetics and isotherms

Sheng, Hongjie; Wang, Fang; Gu, Chenggang; Stedtfeld, Robert D.; Bian, Yongrong; Liu, Guangxia; Wu, Wei; Jiang, Xin

doi:10.1039/c7ra10421a

Cited by 17 publications

(10 citation statements)

References 58 publications

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“…AHLs consist of fivemembered homoserine lactone (HSL) rings containing varied amide-linked side chains. Sorption and hydrolysis of AHLs are two processes that influence the bioavailability and activity of AHLs in natural environments such as soil, resulting in quorum quenching (Grandclement et al 2016;Sheng et al 2018). Sorption of AHLs varied with biochars with different structures.…”

Section: Biochar-microbe Interactionsmentioning

confidence: 99%

Application of biochar-based materials in environmental remediation: from multi-level structures to specific devices

Wang

et al. 2020

Biochar

144

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The development of biochar has triggered a hot-spot in various research fields including agriculture, energy, environment, and materials. Biochar-based materials provide a novel approach against environmental challenging issues. Considering the rapid development of biochar materials, this review serves as a valuable platform to summarize the recent progress on the theoretical investigation and engineering applications of biochar materials in environmental remediation. For a better understanding of the structure-application relationships, the structural properties of biochar from macroscopic and microscopic aspects are summarized. The multilevel structures including elements, phases, surface chemistry, and molecular are highlighted to elucidate the multi-functional properties of biochars. Sorption, catalysis, redox reaction, and biological activity of biochar are briefly illustrated, which influence the transport, transformation, and removal of organic and inorganic pollutants in the environments. According to the multi-level structures and structure-application relationships of biochar, specific biocharbased materials and devices have been designed for practical environmental application. The important progress on the functionalization and device of biochar-based materials, including magnetic biochars, 2D and 3D biochar-based macrostructures, immobilized microorganism on biochar, and biochar-amended biofilters are highlighted. The environmental friendliness and sustainability of biochar-based materials, considering the whole cycle from synthesis to application, are evaluated.

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Section: Biochar-microbe Interactionsmentioning

confidence: 99%

Application of biochar-based materials in environmental remediation: from multi-level structures to specific devices

Wang

et al. 2020

Biochar

144

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“…Prior studies have shown that AHLs can sorb onto some soils (Cheng et al, 2018; Sheng et al, 2018), but it is not known how soil mineral composition affects signal sorption. We hypothesized that differences in mineral surface area will impact the amount of AHL being sorb into the matrices, thereby changing microbial perception of this signal.…”

Section: Resultsmentioning

confidence: 99%

Artificial soils reveal individual factor controls on microbial processes

Valle

Gao

Ghezzehei

et al. 2022

Preprint

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Soil matrix properties influence microbial behaviors that underlie nutrient cycling, greenhouse gas production, and soil formation. However, the dynamic and heterogeneous nature of soils makes it challenging to untangle the effects of different matrix properties on microbial behaviors. To address this challenge, we developed a tunable artificial soil recipe and used these materials to study the abiotic mechanisms driving soil microbial growth and communication. When we used standardized matrices with varying textures to culture gas-reporting biosensors, we found that Gram-negative bacteria grew best in synthetic silt soils, remaining active over a wide range of soil matric potentials, while Gram-positive bacteria preferred sandy soils, sporulating at a low water potentials. Soil texture, mineralogy, and alkalinity all attenuated the bioavailability of an acyl-homoserine lactone (AHL) signaling molecule that controls community-level microbial behaviors. Texture controlled the timing of AHL sensing, while AHL bioavailability was decreased ~105-fold by mineralogy and ~103-fold by alkalinity. Finally, we built artificial soils with a range of complexities that converge on the properties of one Mollisol. As artificial soil complexity increased to more closely resemble the Mollisol, microbial behaviors approached those occurring in the natural soil, with the notable exception of organic matter. Properties that behaved additively were soil texture, pH, and mineralogy, while organic matter did not, suggesting that its soil behavior is an emergent property.

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“…This suggested that both diffusion and intraparticle diffusion processes took place simultaneously during the adsorption of the dyes. Moreover, the multilinearity demonstrated that the adsorption was not only controlled by intraparticle diffusion [ 45 ]. Further, to predict the actual rate-controlling step involved in the adsorption process, we applied the Boyd kinetic model.…”

Section: Resultsmentioning

confidence: 99%

“…Further, to predict the actual rate-controlling step involved in the adsorption process, we applied the Boyd kinetic model. As shown in Figure S1 , the plot of the Boyd model does not pass through the origin, suggesting that the diffusion process might be the rate-controlling step of the adsorption process [ 45 ].…”

Section: Resultsmentioning

confidence: 99%

Highly Efficient and Sustainable Spent Mushroom Waste Adsorbent Based on Surfactant Modification for the Removal of Toxic Dyes

Alhujaily

Zhang

et al. 2018

IJERPH

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The treatment of wastewater always demands eco-friendly and cost-efficient adsorbents. In this paper, spent mushroom waste (SMW) was modified by a cationic surfactant (cetyltrimethylammonium bromide, CTAB) to eliminate toxic dyes. A characterization of adsorbents confirmed that CTAB was successfully embedded into the SMW structure. The spent mushroom waste, modified by CTAB (SMWC), exhibited an excellent adsorption capacity of 249.57 mg·g−1, 338.67 mg·g−1, and 265.01 mg·g−1 for the Direct red 5B (DR5B), Direct blue 71 (DB71), and Reactive black (RB5) dyes, respectively. Batch experiments indicated that the dye adsorption of SMWC depended mainly on pH, dye concentration, temperature, and ionic strength. The adsorption isotherm could be fitted to the Langmuir model and described by the pseudo-second-order kinetic model. The dye adsorption mechanism was dominated mostly by the chemosorption of the dyes and the SMWC surface. Thermodynamic parameters showed that the adsorption was endothermic and spontaneous. SMWC could successfully remove over 90% of dyes from various water samples. This can be considered a feasible waste resource utility, since it meets both the ecological and the economic requirements for auspicious industrial applications.

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Sorption characteristics ofN-acyl homserine lactones as signal molecules in natural soils based on the analysis of kinetics and isotherms

Abstract: Sorption characteristics of N-acyl homoserine lactones (signal molecules) in natural soils.

Cited by 17 publications

References 58 publications

Application of biochar-based materials in environmental remediation: from multi-level structures to specific devices

Application of biochar-based materials in environmental remediation: from multi-level structures to specific devices

Artificial soils reveal individual factor controls on microbial processes

Highly Efficient and Sustainable Spent Mushroom Waste Adsorbent Based on Surfactant Modification for the Removal of Toxic Dyes

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