Synthesis of new environmentally friendly poly(urethane-imide)s as an adsorbent including β-cyclodextrin cavities and attached to iron nanoparticles for removal of gram-positive and gram-negative bacteria from water samples

Eibagi, Hasti; Faghihi, Khalil; Komijani, Majid

doi:10.1016/j.polymertesting.2020.106734

Cited by 16 publications

(9 citation statements)

References 63 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.…”

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confidence: 76%

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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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confidence: 76%

“…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.…”

Section: Introductionmentioning

confidence: 76%

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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“…In this regard, several materials such as activated carbon, agricultural solid wastes, and inorganic materials have been used to assess the removal proficiency of the adsorption process. Effectively, high surface area to volume on the adsorption process provides evidence of the outstanding performance of such technique.…”

Section: Introductionmentioning

confidence: 99%

Regenerated Silk Nanofibers for Robust and Cyclic Adsorption–Desorption on Anionic Dyes

et al. 2022

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In recent years, adsorption-based membranes have been widely investigated to remove and separate textile pollutants. However, cyclic adsorption–desorption to reuse a single adsorbent and clear scientific evidence for the adsorption–desorption mechanism remains challenging. Herein, silk nanofibers were used to assess the adsorption potential for the typical anionic dyes from an aqueous medium, and they show great potential toward the removal of acid dyes from the aqueous solution with an adsorption rate of ∼98% in a 1 min interaction. Further, we measured the filtration proficiency of a silk nanofiber membrane in order to propose a continuous mechanism for the removal of acid blue dye, and a complete rejection was observed with a maximum permeability rate of ∼360 ± 5 L·m–2·h–1. The Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy studies demonstrate that this fast adsorption occurs due to multiple interactions between the dye molecule and the adsorbent substrate. The as-prepared material also shows remarkable results in desorption. A 50-time cycle exhibits complete adsorption and desorption ability, which not only facilitates high removal aptitude but also produces less solid waste than other conventional adsorbents. Additionally, fluorescent 2-bromo-2-methyl-propionic acid (abbreviated as EtOxPY)-silk nanofibers can facilitate to illustrate a clear adsorption and desorption mechanism. Therefore, the above-prescribed results make electrospun silk nanofibers a suitable choice for removing anionic dyes in real-time applications.

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“…For example, Huseen and co-workers studied the cytotoxicity and antibacterial activity of two bacteria gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) with modi ed MNPs by Gelatin (Fe 3 O 4 @GM) (Hasan Huseen et al, 2021). Also, Eibagi and co-workers prepared the β-CDPUIm-MNPs to remove the gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) in water (Eibagi et al, 2020). Although these methods are of particular importance, the preparation of newly modi ed green and biocompatible MNPs and low-toxic compounds such as biological polymers (alginate, chitosan and starch) is very important (Jardim et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The green synthesis of environmentally friendly magnetic silver complex stabilized on MnFe2O4@sodium alginate nanoparticles (MCF@S-ALG/Ag) and evaluation of their antibacterial activity

Mohammadizadeh

Ahadifar

Mobinikhaledi

et al. 2022

Preprint

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Magnetic nanoparticles with green cover sodium alginate and Ag, MnCoFe2O4@Sodium alginate/Ag (MCF@S-ALG/Ag) MNPs, were prepared by a simple and clean method from Sargassum Vulgare brown algae. The structure of these nanoparticles was characterized by the Fourier transform infrared (FT-IR), X-ray powder diffraction (XRD), field emission-scanning electron microscope (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), and vibrating sample magnetometer (VSM). Furthermore, the antibacterial activity of MCF@S-ALG/Ag MNPs was tested for two bacterial of gram-negative (Escherichia coli (E. coli)) bacteria and gram-positive (Staphylococcus aureus (S. aureus)) bacteria. The MCF@S-ALG/Ag MNPs showed the inhibition zone 16.32 mm for S. aureus and 12.84 mm for E. coli bacteria. The minimal inhibitory concentration (MIC) and the minimal bactericidal concentration (MBC) of MCF@S-ALG/Ag MNPs for S. aureus bacteria were found 20 µg/mL and 40µg/mL, respectively.

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Synthesis of new environmentally friendly poly(urethane-imide)s as an adsorbent including β-cyclodextrin cavities and attached to iron nanoparticles for removal of gram-positive and gram-negative bacteria from water samples

Cited by 16 publications

References 63 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

Regenerated Silk Nanofibers for Robust and Cyclic Adsorption–Desorption on Anionic Dyes

The green synthesis of environmentally friendly magnetic silver complex stabilized on MnFe2O4@sodium alginate nanoparticles (MCF@S-ALG/Ag) and evaluation of their antibacterial activity

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Synthesis of new environmentally friendly poly(urethane-imide)s as an adsorbent including β-cyclodextrin cavities and attached to iron nanoparticles for removal of gram-positive and gram-negative bacteria from water samples

Cited by 16 publications

References 63 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

Regenerated Silk Nanofibers for Robust and Cyclic Adsorption–Desorption on Anionic Dyes

The green synthesis of environmentally friendly magnetic silver complex stabilized on MnFe2O4@sodium alginate nanoparticles (MCF@S-ALG/Ag) and evaluation of their antibacterial activity

Contact Info

Product

Resources

About

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