On chelating surfactants: Molecular perspectives and application prospects

Eivazihollagh, Alireza; Svanedal, Ida; Edlund, Håkan; Norgren, Magnus

doi:10.1016/j.molliq.2019.01.076

Cited by 53 publications

(24 citation statements)

References 152 publications

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“…The amphiphilic structure of surfactins leads to strong surface activity, i.e., their capacity to reduce the surface/interfacial tension and to self-assembly in nanostructures, and the presence of negative charge(s). Thus, they display as physico-chemical properties foaming (Razafindralambo et al, 1998 ; Fei et al, 2020 ), emulsifying (Deleu et al, 1999 ; Liu et al, 2015 ; Long et al, 2017 ; Fei et al, 2020 ) and dispersing properties, solid surface wetting and surface hydrophobicity modification performance (Ahimou et al, 2000 ; Shakerifard et al, 2009 ; Marcelino et al, 2019 ; Fei et al, 2020 ), and chelating ability (Mulligan et al, 1999 ; Grangemard et al, 2001 ; Eivazihollagh et al, 2019 ). This strong surface activity leads to detergent applications (Zezzi do Valle Gomes and Nitschke, 2012 ), but they also show promising perspectives of applications in the environmental sector to enhance oil recovery in oil-producing wells (Liu et al, 2015 ; Joshi et al, 2016 ; Long et al, 2017 ; de Araujo et al, 2019 ; Alvarez et al, 2020 ; Miyazaki et al, 2020 ), to increase the biodegradation rate of linear and aromatic hydrocarbons (Wang et al, 2020 ), and for metal removal from soil or aqueous solutions (Zouboulis et al, 2003 ; Eivazihollagh et al, 2019 ).…”

Section: Structure and Properties Relationshipmentioning

confidence: 99%

The Surfactin-Like Lipopeptides From Bacillus spp.: Natural Biodiversity and Synthetic Biology for a Broader Application Range

Théatre

Cano-Prieto

Bartolini

et al. 2021

Front. Bioeng. Biotechnol.

113

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Surfactin is a lipoheptapeptide produced by several Bacillus species and identified for the first time in 1969. At first, the biosynthesis of this remarkable biosurfactant was described in this review. The peptide moiety of the surfactin is synthesized using huge multienzymatic proteins called NonRibosomal Peptide Synthetases. This mechanism is responsible for the peptide biodiversity of the members of the surfactin family. In addition, on the fatty acid side, fifteen different isoforms (from C12 to C17) can be incorporated so increasing the number of the surfactin-like biomolecules. The review also highlights the last development in metabolic modeling and engineering and in synthetic biology to direct surfactin biosynthesis but also to generate novel derivatives. This large set of different biomolecules leads to a broad spectrum of physico-chemical properties and biological activities. The last parts of the review summarized the numerous studies related to the production processes optimization as well as the approaches developed to increase the surfactin productivity of Bacillus cells taking into account the different steps of its biosynthesis from gene transcription to surfactin degradation in the culture medium.

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Section: Structure and Properties Relationshipmentioning

confidence: 99%

The Surfactin-Like Lipopeptides From Bacillus spp.: Natural Biodiversity and Synthetic Biology for a Broader Application Range

Théatre

Cano-Prieto

Bartolini

et al. 2021

Front. Bioeng. Biotechnol.

113

View full text Add to dashboard Cite

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“…[ 139 ] This prevents the precipitation of metal ions and preserves the compositional homogeneity between all the constituents, reinforcing the coordinate bonds. [ 208 ]…”

Section: Fundamentals Of Solution‐based Metal Oxide Rramsmentioning

confidence: 99%

Recent Progress in Solution‐Based Metal Oxide Resistive Switching Devices

et al. 2020

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Metal oxide resistive switching memories have been a crucial component for the requirements of the Internet of Things, which demands ultra‐low power and high‐density devices with new computing principles, exploiting low cost green products and technologies. Most of the reported resistive switching devices use conventional methods (physical and chemical vapor deposition), which are quite expensive due to their up‐scale production. Solution‐processing methods have been improved, being now a reliable technology that offers many advantages for resistive random‐access memory (RRAM) such as high versatility, large area uniformity, transparency, low‐cost and a simple fabrication of two‐terminal structures. Solution‐based metal oxide RRAM devices are emergent and promising non‐volatile memories for future electronics. In this review, a brief history of non‐volatile memories is highlighted as well as the present status of solution‐based metal oxide resistive random‐access memory (S‐RRAM). Then, a focus on describing the solution synthesis parameters of S‐RRAMs which induce a massive influence in the overall performance of these devices is discussed. Next, a precise analysis is performed on the metal oxide thin film and electrode interface and the recent advances on S‐RRAM that will allow their large‐area manufacturing. Finally, the figures of merit and the main challenges in S‐RRAMs are discussed and future trends are proposed.

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“…The results of extensive laboratory testing on model solutions indicate that this approach may be an interesting and viable option. In recent years, various natural, synthesized, and functionalized sorbents were investigated for an efficient adsorption of RE ions [18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

“…The adsorption capability of natural clay-mainly smectite or montmorillonite [28][29][30][31]are well-known, and also, the use of chelating agents has been reported. Chelating molecules, indeed able to strongly coordinate metal ions, are widely applied in the industry, as well as in consumer products [19].…”

Section: Introductionmentioning

confidence: 99%

Rare Earths (La, Y, and Nd) Adsorption Behaviour towards Mineral Clays and Organoclays: Monoionic and Trionic Solutions

et al. 2020

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Metals from electric and electronic waste equipment (WEEE) can be recovered by dissolution with acids followed by liquid–liquid extraction. A possible alternative to liquid–liquid extraction is liquid–solid adsorption, where sorbents efficiency is the key factor for process efficiency. In this respect, aim of this paper is the study of the behaviour of two solid sorbents for the recovery of Rare Earths (REs)—in particular, La, Nd, and Y—from scraps of end-of-Life (EOL) electronic equipment. Two solid matrices were considered: a pristine montmorillonite clay and a modified-montmorillonite clay intercalated with a commercial pentaethylen-hexamine. The capture ability of the solids was tested towards single-ion La, Nd, and Y solutions and a multi-element solution containing the three ions. Before and after the uptake step, samples of both the solid and liquid phases were analysed. For both sorbents, at lower metal initial concentrations, the ions were captured in similar amount. At higher concentrations, pure clay showed a high total uptake towards La ions, likely due to surface interactions with clay sites. The organoclay preferentially interacts with Nd and Y. Considering the presence of the polyamine, this behaviour was related to ion coordination with the amino groups. The capture behaviour of the two sorbents was related to the different physicochemical properties of the ions, as well as to the ionic radius.

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On chelating surfactants: Molecular perspectives and application prospects

Cited by 53 publications

References 152 publications

The Surfactin-Like Lipopeptides From Bacillus spp.: Natural Biodiversity and Synthetic Biology for a Broader Application Range

The Surfactin-Like Lipopeptides From Bacillus spp.: Natural Biodiversity and Synthetic Biology for a Broader Application Range

Recent Progress in Solution‐Based Metal Oxide Resistive Switching Devices

Rare Earths (La, Y, and Nd) Adsorption Behaviour towards Mineral Clays and Organoclays: Monoionic and Trionic Solutions

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