Bio-inspired magnetic superhydrophobic PU-PDA-Fe3O4-Ag for effective oil-water separation and its antibacterial activity

Gao, Zhipeng; Zhou, Shuai; Zhou, Yingmei; Wan, Hongri; Zhang, Cai; Yao, Bing; Chen, Teng

doi:10.1016/j.colsurfa.2020.126122

Cited by 50 publications

(17 citation statements)

References 56 publications

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“…The antibacterial assay test showed that no antibacterial activity was observed for the neat coating, whereas the presence of the PU/Fe 3 O 4 -Ag nanocomposite coating exhibited remarkable antibacterial activity against E. coli. [38] Also, the same results were reported for PU-PDA-Fe 3 O 4 -Ag by Chen et al [46] In continuing our previous work in which a high eco-friendly magnetic poly(urethane-imide) containing β-cyclodextrin moiety for the improvement of bacterial adsorption was introduced, [47] in the current study, novel types of biocompatible MNPs@Starch-Ag/PU nanocomposites with high antibacterial activities were prepared.…”

supporting

confidence: 74%

High antibacterial activity of new eco‐friendly and biocompatible polyurethane nanocomposites based on Fe₃O₄/Ag and starch moieties

Kamali

Faghihi

Mirhoseini

2022

Polymer Engineering & Sci

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Control of microbial infections is one of the growing concerns in modern societies due to the increasing presence and risk of pathogenic bacterial spread. Therefore, there is a strong demand to design new antibacterial agents to overcome these problems. The aim of this study is the preparation of a new series of biocompatible starch‐based polyurethane (PU) nanocomposites with a unique combination of magnetic nanoparticles (MNPs) and silver nanoparticles (AgNPs). In order to perform the study, first, a new synthetic diisocyanate was synthesized by a three‐step reaction and grafted into bis(2‐hydroxyethyl terephthalate) (BHET) and starch as a covering agent of MNPs containing different amounts of AgNPs. Afterward, the diisocyanate containing two active isocyanate moieties was reacted with hydroxyl groups of BHET and starch to form stable urethane linkages. Subsequently, the antibacterial activity of the pure synthetic PU and the produced nanocomposites were investigated against Escherichia coli and Staphylococcus aureus as Gram‐negative and Gram‐positive microorganism models, respectively. The obtained results exhibited that the nanocomposites have a synergistic effect on the antibacterial activity, which decreased with increasing of the Ag content. Such results may be related to the AgNPs agglomeration in the nanocomposite.

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supporting

confidence: 74%

High antibacterial activity of new eco‐friendly and biocompatible polyurethane nanocomposites based on Fe₃O₄/Ag and starch moieties

Kamali

Faghihi

Mirhoseini

2022

Polymer Engineering & Sci

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“…The antibacterial superhydrophobic fabric could prevent textiles from being damaged by the attack of microorganisms, and could also control and prevent the spread and proliferation of pathogens as well as other diseases such as dermatitis. In addition, Gao et al [ 72 ] fabricated a superhydrophobic antibacterial PU sponge surface. The resulting PU sponges exhibited antibacterial activity against both Gram‐positive and Gram‐negative bacteria with the action of Ag NPs, also indicated the modified PU sponges had potential superior environmental adaptability.…”

Section: Metal‐based Antibacterial Superhydrophobic Coatingsmentioning

confidence: 99%

Recent Advances in Antibacterial Superhydrophobic Coatings

Zhan

Amirfazli

et al. 2021

Adv Eng Mater

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Microorganisms have existed for hundreds of millions of years and they have adapted to colonize on surfaces. [1] Bacteria are ubiquitous in the human living environment. Most bacteria spread through medical equipments and contacting with each other. [2] All over the world, the diseases caused by bacterial infections have brought terrible catastrophe to human beings. [3][4][5][6][7] Generally, people infected with infectious diseases are directly or indirectly related to contact with pathogenic microorganisms. The main stages of the attachment of bacteria at the interface include the migration of bacteria to the surface, the reversible and irreversible interactions between bacteria and the interface, the specific adsorption of bacteria on the substrate, and the proliferation of bacteria, thus forming a bacterial biofilm on the surface (Figure 1). [8] The bacteria can multiply quickly under suitable conditions, which induce various diseases and cause invalidation of apparatus. The colonization of bacteria on surfaces can result in chronic infections, [9] the failure of medical implants, [10] the biological corrosion of industrial equipments, [11] reducing various surface properties, such as petroleum and other pipelines systems, clothes, and other harmful phenomena. [12] Currently, antibiotics are mainly used to inhibit or kill bacteria to maintain surface hygiene and prevent infections. However, as bacteria develop resistance to antibiotics, it is suggested that antibiotics should be much more cautiously used. It is estimated that antimicrobial resistance infections will kill as many as 10 million people every year by 2050. [13] Antimicrobial resistance is now an urgent international issue that requires imperative solutions, more effective antibacterial techniques are needed to fight bacterial infections. Inspired by the superwetting properties of plants and marine life, Li et al. [14] reviewed the research progresses of the preparation of superwetting materials including of superhydrophobic/superoleophilic and superhydrophilic/underwater superoleophobic materials and their applications for removal of organic pollutants, which provided a basis for the design of a new type of superwetting materials that efficiently remove organic pollutants in the water. Similarly, Tian et al. [15] developed a superwetting thin-film nanofibrous composite membrane with antifouling, self-cleaning, and oil-in-water emulsions separation properties. The as-prepared carbon nanotubes (CNTs) layer with superhydrophilic and underwater superoleophobic properties could absorb water as a selective layer to remove oil droplets from oil-in-water emulsions to present antifouling. The self-cleaning properties were promised by the continuously up-flowed permeate water. They claimed that the work provided a new insight for developing oil/water separation membranes which suffer from fouling and clogging. Also, Li et al. [16] summarized the recent progresses in smart polymeric materials for fabricating switchable superwettability surfaces and their oi...

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“…Then it can ameliorate overall processing in oil spill remediation. [264][265][266][267][268] Preparation of magnetic oil sorbent requires an organic-inorganic hybridized system. Gui et al, fabricated magnetic carbon nanotube (Me-CNT) sponges through CVD system, which can be scaled up using a furnace with a large reactive chamber.…”

Section: Strategies For Sorbent Collection With Magnetic Responsementioning

confidence: 99%

A Role for Newly Developed Sorbents in Remediating Large‐Scale Oil Spills: Reviewing Recent Advances and Beyond

Kim

Zhang

Chung

et al. 2021

Advanced Sustainable Systems

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The conservation of ocean and freshwater have been crucial issues over the past decades, and oil/water separation is a well‐known technology to restore polluted water systems. In the meantime, oil sorbents serve as a promising means of achieving water conservation to recover from oil spills, which require a multi‐factorial approach to review high selectivity, capacity, and rate of oil recovery. However, reusability is a critical component to consider in incidents with large‐scale spills. With the development of sorbent technology, some studies have progressed to explore surface engineering and material design for high oil sorption capacity and durability. Thus, this systemic review, a summary of sorbent developments, serves as a guide to understanding practical applications that can apply to large‐scale oil spills and recognize remaining issues. In this review, the oil weathering process and oil sorption mechanisms in relation to the characteristics of target pollutants are introduced. Then, this comprehensive review focuses on materials in advanced sorbents. These materials have properties including, aligned channels for fast sorption, self‐heating capabilities for viscous oil cleanup, and magnetic‐responsiveness to enhance a collection of final products. The perspective and challenges for the next generation of oil spills remediation technology‐based oil sorbents materials are finally presented in the last section.

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Bio-inspired magnetic superhydrophobic PU-PDA-Fe3O4-Ag for effective oil-water separation and its antibacterial activity

Cited by 50 publications

References 56 publications

High antibacterial activity of new eco‐friendly and biocompatible polyurethane nanocomposites based on Fe₃O₄/Ag and starch moieties

High antibacterial activity of new eco‐friendly and biocompatible polyurethane nanocomposites based on Fe₃O₄/Ag and starch moieties

Recent Advances in Antibacterial Superhydrophobic Coatings

A Role for Newly Developed Sorbents in Remediating Large‐Scale Oil Spills: Reviewing Recent Advances and Beyond

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Bio-inspired magnetic superhydrophobic PU-PDA-Fe3O4-Ag for effective oil-water separation and its antibacterial activity

Cited by 50 publications

References 56 publications

High antibacterial activity of new eco‐friendly and biocompatible polyurethane nanocomposites based on Fe3O4/Ag and starch moieties

High antibacterial activity of new eco‐friendly and biocompatible polyurethane nanocomposites based on Fe3O4/Ag and starch moieties

Recent Advances in Antibacterial Superhydrophobic Coatings

A Role for Newly Developed Sorbents in Remediating Large‐Scale Oil Spills: Reviewing Recent Advances and Beyond

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Product

Resources

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High antibacterial activity of new eco‐friendly and biocompatible polyurethane nanocomposites based on Fe₃O₄/Ag and starch moieties

High antibacterial activity of new eco‐friendly and biocompatible polyurethane nanocomposites based on Fe₃O₄/Ag and starch moieties