Improved antifouling properties of polyethersulfone membranes modified with α-amylase entrapped in Tetronic® micelles

Kolesnyk, Iryna; Konovalova, V. V.; Kharchenko, Kateryna; Бурбан, Анатолій; Knozowska, Katarzyna; Kujawski, Wojciech; Kujawa, Joanna

doi:10.1016/j.memsci.2018.10.064

Cited by 21 publications

(5 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, antifouling properties of PES membranes were modified by the adsorption of α‐amylase: (a) entrapped in micelles based on polymeric surfactant (Kolesnyk et al, 2019) and chitosan (Kolesnyk et al, 2020) and (b) by covalent immobilization on polydopamine/cyanuric chloride functionalized PES membranes (Mehrabi et al, 2020). The immobilized enzymes exhibited long‐term stability of the coated layer and antifouling properties.…”

Section: Alternative Membrane Cleaning Methodsmentioning

confidence: 99%

“…Additionally, the biofilm was efficiently removed by bienzymatic immobilization: α‐amylase (antiadhesion) and lysozyme (antibacterial). The antifouling property is associated with changes in the hydrophilicity and higher rugosity at the nanoscale; increasing the number of bounded water molecules on the membrane surface will avoid cake formation in the boundary layer (Kolesnyk et al, 2019; Mehrabi et al, 2020).…”

Section: Alternative Membrane Cleaning Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Alternative methods for cleaning membranes in water and wastewater treatment

Hilares

Singh²,

Meza

et al. 2022

Water Environment Research

View full text Add to dashboard Cite

Membrane fouling is caused by foulant deposition or adsorption through physical or chemical interactions on the membrane surface, causing the reduction of flux through the membrane. The main drawbacks of chemical agents used for cleaning are cost, damage caused on the membrane, and waste stream making the process unattractive. Alternative, methods such as ultrasound, enzymatic process, and osmotic backwashing were explored for membrane cleaning. Among all mentioned methods, micronanobubbles have been reported as a promising and emergent method for membrane surface cleaning; unfortunately, the information is limited, but preliminary studies have shown it as an efficient, cheap, and environmentally friendly technique. Other methods like electrically and vibratory‐enhanced membrane cleaning also could be interesting but currently are unexplored and information is limited. Practitioner Points Chemical cleaning is an efficient option; however, from an environmental point of view, it is not attractive, and high concentrations could cause damage to the membrane. Micronanobubbles are an emergent and suitable technology for membrane and surface cleaning. Membrane modification and functionalization avoid membrane fast fouling, and the cleaning process is easier, but the manufacture cost could be expensive.

show abstract

Section: Alternative Membrane Cleaning Methodsmentioning

confidence: 99%

Section: Alternative Membrane Cleaning Methodsmentioning

confidence: 99%

Alternative methods for cleaning membranes in water and wastewater treatment

Hilares

Singh²,

Meza

et al. 2022

Water Environment Research

View full text Add to dashboard Cite

show abstract

“…Bulk modification by blending hydrophilic polymers to the casting solution is a widely used technique to increase the hydrophilicity of the membrane surface. Polyethylene glycol (PEG) [ 15 ], polyvinylpyrrolidone (PVP) [ 16 , 17 ], block copolymers of polyethylene glycol and polypropylene glycol (Pluronic ® , Synperonic, Tetronic) are the most suitable for this purpose [ 18 , 19 , 20 , 21 , 22 , 23 ]. One of the disadvantages of this technique is the leaching out of hydrophilic polymer during membrane preparation via non-solvent-induced phase separation (NIPS) due to their high hydrophilicity and solubility in water (the most frequently used coagulant).…”

Section: Introductionmentioning

confidence: 99%

Effect of the Addition of Polyacrylic Acid of Different Molecular Weights to Coagulation Bath on the Structure and Performance of Polysulfone Ultrafiltration Membranes

et al. 2023

View full text Add to dashboard Cite

Membrane fouling is a serious issue in membrane technology which cannot be completely avoided but can be diminished. The perspective technique of membrane modification is the introduction of hydrophilic polymers or polyelectrolytes into the coagulation bath during membrane preparation via non-solvent-induced phase separation. The influence of polyacrylic acid (PAA) molecular weight (100,000, 250,000 and 450,000 g·mol−1) added to the aqueous coagulation bath (0.4–2.0 wt.%) on the polysulfone membrane structure, surface roughness, water contact angle and zeta potential of the selective layer, as well as the separation and antifouling performance, was systematically studied. It was found that membranes obtained via the addition of PAA with higher molecular weight feature smaller pore size and porosity, extremely high hydrophilicity and higher values of negative charge of membrane surface. It was shown that the increase in PAA concentration from 0.4 wt.% to 2.0 wt.% for all studied PAA molecular weights yielded a substantial decrease in water contact angle compared with the reference membrane (65 ± 2°) (from 27 ± 2° to 17 ± 2° for PAA with Mn = 100,000 g·mol−1; from 25 ± 2° to 16 ± 2° for PAA with Mn = 250,000 g·mol−1; and from 19 ± 2° to 10 ± 2° for PAA with Mn = 450,000 g·mol−1). An increase in PAA molecular weight from 100,000 to 450,000 g·mol−1 led to a decrease in membrane permeability, an increase in rejection and tailoring excellent antifouling performance in the ultrafiltration of humic acid solutions. The fouling recovery ratio increased from 73% for the reference membrane up to 91%, 100% and 136% for membranes modified with the addition to the coagulation bath of 1.5 wt.% of PAA with molecular weights of 100,000 g·mol−1, 250,000 g·mol−1 and 450,000 g·mol−1, respectively. Overall, the addition of PAA of different molecular weights to the coagulation bath is an efficient tool to adjust membrane separation and antifouling properties for different separation tasks.

show abstract

“…The interaction between proteins and solids (e.g., nanoparticles, semiconductors, minerals, oxides, and metals) has played a critical role in many fields, such as antibacterial/antifouling coating, industrial catalysts, , biosensors, , and drug delivery . Much experimental work has been carried out on the adsorption of proteins on solid materials, but the presentation of the microscopic details of the molecular structure and adsorption process remains unclear and very challenging. − Atomistic molecular dynamics (MD) simulation, on the other hand, is capable of providing time-evolution spatial details of a protein’s structure at the atomic level. − However, due to the complexity of the protein adsorption process, the computational cost would be prohibitively expensive for the complete simulation of the whole process, especially performed with explicit solvent and all-atom molecular models. − Coarse-grained (CG) MD simulation can offer a more efficient way to simulate the same system by sacrificing the model’s resolution and the computing accuracy through grouping a number of atoms into CG particles and simplifying the intra- and intermolecular interaction functions but cannot present the secondary structural changes of proteins. ,− …”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Graph Clustering Analyses of Discontinuous Molecular Dynamics Simulations: Study of Lysozyme Adsorption on a Graphene Surface

Chen

Wei

et al. 2022

Langmuir

View full text Add to dashboard Cite

Understanding the interfacial behaviors of biomolecules is crucial to applications in biomaterials and nanoparticle-based biosensing technologies. In this work, we utilized autoencoder-based graph clustering to analyze discontinuous molecular dynamics (DMD) simulations of lysozyme adsorption on a graphene surface. Our high-throughput DMD simulations integrated with a Go̅-like protein–surface interaction model makes it possible to explore protein adsorption at a large temporal scale with sufficient accuracy. The graph autoencoder extracts a low-dimensional feature vector from a contact map. The sequence of the extracted feature vectors is then clustered, and thus the evolution of the protein molecule structure in the absorption process is segmented into stages. Our study demonstrated that the residue–surface hydrophobic interactions and the π–π stacking interactions play key roles in the five-stage adsorption. Upon adsorption, the tertiary structure of lysozyme collapsed, and the secondary structure was also affected. The folding stages obtained by autoencoder-based graph clustering were consistent with detailed analyses of the protein structure. The combination of machine learning analysis and efficient DMD simulations developed in this work could be an important tool to study biomolecules’ interfacial behaviors.

show abstract

Improved antifouling properties of polyethersulfone membranes modified with α-amylase entrapped in Tetronic® micelles

Cited by 21 publications

References 47 publications

Alternative methods for cleaning membranes in water and wastewater treatment

Alternative methods for cleaning membranes in water and wastewater treatment

Effect of the Addition of Polyacrylic Acid of Different Molecular Weights to Coagulation Bath on the Structure and Performance of Polysulfone Ultrafiltration Membranes

Graph Clustering Analyses of Discontinuous Molecular Dynamics Simulations: Study of Lysozyme Adsorption on a Graphene Surface

Contact Info

Product

Resources

About