Comparative analysis of early-stage adsorption and biofilm formation of thermoacidophilic archaeon Acidianus manzaensis YN-25 on chalcopyrite and pyrite surfaces

Su, Guirong; Deng, Xiaoying; Hu, Liang; Praburaman, Loganathan; Zhong, Hui; He, Zhiguo

doi:10.1016/j.bej.2020.107744

Cited by 11 publications

(3 citation statements)

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“…Furthermore, the interaction of bacteria cells with the surface of the mineral plays an important role in bioleaching (Diao et al, 2014). The adhesion of bacterial cells to the mineral surface is a complex process associated with biofilm formation (Su et al, 2020), in which extracellular polymeric substances (EPS) play an essential role (Li et al, 2016). The presence of secondary products in the leaching environment can interfere with biofilm formation.…”

Section: Resultsmentioning

confidence: 99%

Bioleaching of sulfide containing material from the Wiśniówka Quarry: stability and adhesion of secondary products

Pawłowska¹,

Sadowski²,

Winiarska³

2022

Physicochem. Probl. Miner. Process.

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Section: Resultsmentioning

confidence: 99%

Bioleaching of sulfide containing material from the Wiśniówka Quarry: stability and adhesion of secondary products

Pawłowska¹,

Sadowski²,

Winiarska³

2022

Physicochem. Probl. Miner. Process.

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“…The attachment kinetics under different cell densities was processed with the previous methods. 24 Langmuir and Freundlich adsorption models were adopted to evaluate the adsorptions of the cells to CFs. The Langmuir and Freundlich isotherm equations were shown as follows:…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Reversible Adsorption and Detachment of Saccharomyces cerevisiae on Thermoresponsive Poly(N-isopropylacrylamide)-Grafted Fibers for Continuous Immobilized Fermentation

et al. 2022

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Biofilm-mediated continuous fermentation with cells immobilized has gained much attention in recent years. In this study, thermoresponsive poly(N-isopropylacrylamide)-grafted cotton fibers (PNIPAM-CF) were prepared via an improved surface-initiated atom transfer radical polymerization. The modification process imparted switchable wettability to the surface while maintaining the thermal stability and biocompatibility of the CF. During the ethanol transformation, the rapid, reversible cell adsorption and detachment of Saccharomyces cerevisiae were performed through the modulation of wettability, displaying the enhancement of immobilized biomass and immobilization efficiency from 2.20 g/L and 59.43% to 2.81 g/L and 93.32%, respectively. Moreover, the biofilm adsorption matched well with the Freundlich model, indicating that multilayer adhesion was the main mode of biofilm formation. Based on the accumulation of the biofilm, the fabrication and utilization of PNIPAM-CF improved the efficiency of continuous immobilized fermentation, making the ethanol production reach 26.34 g/L in the sixth batch of fermentation. Meanwhile, wettability regulation further enhanced the reusability of the carrier. Therefore, the findings of this study revealed that the application of smart materials in cell immobilization systems had broad prospects for achieving sustainable and continuous catalysis.

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“…The height of the maximum interaction energy determines the The process of bacterial cell adhesion to the mineral surface is complex, and the final step results in the formation of a biofilm. It is influenced by the following factors: the type of bacteria, their concentration, the structure of the mineral surface, its chemical composition, and hydrophobicity/hydrophilicity [15,16]. EPS involved in biofilm formation, is a collection of substances with the most important components composed of carbohydrates, proteins, lipids, and nucleic acids [17].…”

Section: Theoretical Models Used To Describe Biosurfactant-mineral Su...mentioning

confidence: 99%

The Role of Biomodification in Mineral Processing

Pawlowska,

Sadowski

2023

Minerals

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Increasing environmental concern forces the reduction in the share of synthetic surfactants in the production of various industries, including mineral processing, by replacing them with more environmentally friendly compounds of biological origin. Several studies on the use of biosurfactants in mineral processing are currently available in the literature, but they contain limited information related to the physicochemistry of these processes. Therefore, this review aims to summarise publications from the last decade related to the role of microorganisms and their metabolic products in mineral surface modification applied in mineral processing. Theoretical principles of bacteria–mineral interactions are presented. Salt-type, sulphide, and oxide minerals were discussed with greater attention to the physicochemistry of biosurfactant–mineral interactions, such as the wettability and surface charge. The advantages and disadvantages of using bacterial cells and surface-active microbial compounds were proposed. The trends and challenges of biomodification in flotation and flocculation were discussed.

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Comparative analysis of early-stage adsorption and biofilm formation of thermoacidophilic archaeon Acidianus manzaensis YN-25 on chalcopyrite and pyrite surfaces

Cited by 11 publications

References 80 publications

Bioleaching of sulfide containing material from the Wiśniówka Quarry: stability and adhesion of secondary products

Bioleaching of sulfide containing material from the Wiśniówka Quarry: stability and adhesion of secondary products

Reversible Adsorption and Detachment of Saccharomyces cerevisiae on Thermoresponsive Poly(N-isopropylacrylamide)-Grafted Fibers for Continuous Immobilized Fermentation

The Role of Biomodification in Mineral Processing

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