Surface Engineering of Thin Film Composite Polyamide Membranes with Silver Nanoparticles through Layer-by-Layer Interfacial Polymerization for Antibacterial Properties

Liu, Zhongyun; Qi, Longbin; An, Xiaochan; Liu, Caifeng; Hu, Yunxia

doi:10.1021/acsami.7b12314

Cited by 62 publications

(41 citation statements)

References 55 publications

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“…The colony-forming unit (CFU) counting method was used to evaluate the antibacterial activities of the pure inorganic SiO 2 fibres (used as a standard comparison material) and newly prepared hybrid DACHsilane fibres against S. aureus and P. aeruginosa following the reported protocol [29].…”

Section: Quantitative Methodsmentioning

confidence: 99%

“…Each test was performed in triplicate. Viable colonies of microbes on the agar plate were counted, and the percentage of cell growth reduction (CGR, %) was calculated using the equation CGR = (C 0 − C/C 0 ) × 100%, where C 0 is the number of CFU of bacteria from the control sample and C is the number of CFU of bacteria from hybrid DACHsilane fibres [1,29].…”

Section: Quantitative Methodsmentioning

confidence: 99%

“…In all cases, finely powdered dry samples were placed into 4-mm ZrO 2 rotors. All of the experiments were conducted at 303 K. The 29 Si CP/MAS NMR spectra were recorded at Magic Angle Spinning (MAS) of 7 kHz. The spectra were referenced to the external standard M8Q8 (−109.8 ppm).…”

Section: Si Cross Polarization Magic Angle Spinning Nuclear Magnetmentioning

confidence: 99%

“…The number of scans was 0.5-5k depending on the amount of sample. For the quantitative analysis and deconvolution of 29 Si CP/MAS NMR spectra, the TopSpin 3.6 program package (Bruker) was used [28].…”

Section: Si Cross Polarization Magic Angle Spinning Nuclear Magnetmentioning

confidence: 99%

“…The bacterial adhesion of S. aureus and P. aeruginosa on the surface of each fibrous sample was evaluated according to the reported literature [29]. Several changes, appearing during the experiment, are mentioned below.…”

Section: Bacterial Adhesionmentioning

confidence: 99%

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(1S,2S)-Cyclohexane-1,2-diamine-based Organosilane Fibres as a Powerful Tool Against Pathogenic Bacteria

et al. 2020

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An urgent need to find an effective solution to bacterial resistance is pushing worldwide research for highly effective means against this threat. Newly prepared hybrid organosilane fibres consisting of a (1S,2S)-cyclohexane-1,2-diamine derivative, interconnected in the fibre network via covalent bonds, were fully characterised via different techniques, including FTIR, TGA-FTIR, SEM-EDS, and solid-state NMR. Fibrous samples were successfully tested against two types of pathogenic bacterial strains, namely Staphylococcus aureus, and Pseudomonas aeruginosa. The obtained results, showing >99.9% inhibition against Staphylococcus aureus and Pseudomonas aeruginosa in direct contact compared to the control, may help particularly in case of infections, where there is an urgent need to treat the infection in direct contact. From this point of view, the above-mentioned fibrous material may find application in wound healing. Moreover, this new material has a positive impact on fibroblasts viability.

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Section: Quantitative Methodsmentioning

confidence: 99%

Section: Quantitative Methodsmentioning

confidence: 99%

Section: Si Cross Polarization Magic Angle Spinning Nuclear Magnetmentioning

confidence: 99%

Section: Si Cross Polarization Magic Angle Spinning Nuclear Magnetmentioning

confidence: 99%

Section: Bacterial Adhesionmentioning

confidence: 99%

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(1S,2S)-Cyclohexane-1,2-diamine-based Organosilane Fibres as a Powerful Tool Against Pathogenic Bacteria

et al. 2020

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Antibiofouling Thin‐Film Nanocomposite Membranes for Sustainable Water Purification

Pang

Meier‐Haack

Huang³

et al. 2021

Advanced Sustainable Systems

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Membrane technology provides a reliable and powerful solution to combat the global water crisis by producing fresh water through sustainable desalination. However, the decline in system performance due to membrane biofouling is a limitation and significant efforts have been made to explore fouling control mechanisms and develop simple methods to inhibit or eliminate membrane fouling. Nanotechnology has increased the number of options for the development of antibiofouling membranes by incorporating nanoparticles within the polyamide layer to produce a thin‐film nanocomposite (TFN) structure. This review presents recent advances in the preparation of antifouling TFN membranes and incorporation of different nanoparticles into the design. The review also discusses the strategies and mechanisms for reducing membrane fouling and proposes a future outlook for the field.

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Characterization of polyamide thin film composite membranes incorporated silver nanoparticles

Ngo

Pham

Nguyen

et al. 2022

J of Applied Polymer Sci

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In this study, the polyamide thin film composite membrane surface has been modified by anti-microbial silver nanoparticles (AgNPs). The membrane surfaces were interwoven with AgNPs by ultraviolet grafting polymerization method using AgNPs with or without poly(ethylene glycol) (PEG). The membrane surface characteristics were determined by scanning electron microscopy-energy dispersive x-ray spectrometry images, attenuated total reflection-Fourier transforms infrared spectroscopy, water contact angle values, and anti-bacterial property. The separation performance was determined based on the flux and the ability to remove calcium ions in water. The anti-biofouling property was appraised through the maintained flux ratios and the irreversible fouling factors of unmodified and modified membranes during 10 h-filtration of protein bovine serum albumin (BSA) in an aqueous solution, in which, before filtration of BSA, all membranes were immersed in E. coli bacteria solution for 4 days. The results of the experiments corroborated the hydrophilicity and more anti-microbial property of the membrane surfaces after being incorporated into AgNPs. The water contact angle decreased from around 49 for the unmodified membrane to 36 and 23 for the AgNPmodified membranes without/with PEG, while no colonies appeared in the medium containing the AgNP-modified membranes. The separation property of modified membranes was improved, with both membrane flux and antifouling properties, along with the substantial surge of the anti-biofouling property. After 10 h of BSA filtration, the fluxes of the modified membranes were maintained at 68% and 78% for AgNP-modified membranes without and with PEG, respectively. Conversely, this value was only 46% for the unmodified one.

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Surface Engineering of Thin Film Composite Polyamide Membranes with Silver Nanoparticles through Layer-by-Layer Interfacial Polymerization for Antibacterial Properties

Cited by 62 publications

References 55 publications

(1S,2S)-Cyclohexane-1,2-diamine-based Organosilane Fibres as a Powerful Tool Against Pathogenic Bacteria

(1S,2S)-Cyclohexane-1,2-diamine-based Organosilane Fibres as a Powerful Tool Against Pathogenic Bacteria

Antibiofouling Thin‐Film Nanocomposite Membranes for Sustainable Water Purification

Characterization of polyamide thin film composite membranes incorporated silver nanoparticles

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