Poly(vinylidene fluoride)-based film with strong antimicrobial activity

Han, Dong Je; Kim, Seonwoo; Heo, Hyeon; Jin, Chaewon; Kim, Jin‐Young; Choi, Hongsoo; Park, In Jun; Kang, Hyeonbae; Lee, Sang Goo; Lee, Jong-Chan; Sohn, Eun‐Ho

doi:10.1016/j.apsusc.2021.150181

Cited by 15 publications

(8 citation statements)

References 49 publications

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“…Dialysis membranes based on PVDF have been developed only on the laboratory scale, but it is expected that their properties will be improved by the abovementioned research studies [52]. albicans [54]. These bio-inert PVDF membranes are also used in water treatment membranes, for example, reverse osmosis [55] and ultrafiltration [56] membranes, because of less biofouling.…”

Section: -2: Polyvinylidene Fluoride (Pvdf)mentioning

confidence: 99%

Fluorine-containing bio-inert polymers: Roles of intermediate water

Koguchi¹,

Jankova

Tanaka

2022

Acta Biomaterialia

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Section: -2: Polyvinylidene Fluoride (Pvdf)mentioning

confidence: 99%

Fluorine-containing bio-inert polymers: Roles of intermediate water

Koguchi¹,

Jankova

Tanaka

2022

Acta Biomaterialia

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“…This immersion method in deionized water is called non-solvent-induced phase separation (NIPS). , The layer undergoes a process of poresation, and the membranes are subsequently dried at elevated temperatures. , QDMA and MPC are commonly added to the mentioned mixture because of their ability to improve the membrane properties (microbial resistivity, biocompatibility, and resistivity to oil, bacteria, and protein pollution). It has been shown that these modifications can prolong the life of the membranes. − These modifying substances were also incorporated into the membranes characterized in this work. The structure of the PVDF polymer chain with the modifying side chains is illustrated in Figure .…”

Section: Methodsmentioning

confidence: 98%

Characterization of Modified PVDF Membranes Using Fourier Transform Infrared and Raman Microscopy and Infrared Nanoimaging: Challenges and Advantages of Individual Methods

Kmetík,

Kopal,

Král

et al. 2024

ACS Omega

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Polymer materials are integral to diverse scientific fields, including chemical engineering and biochemical research, as well as analytical and physical chemistry. This study focuses on the characterization of modified poly(vinylidene fluoride) (PVDF) membranes from both physical and chemical perspectives. Unfortunately, current surface characterization methods face various challenges when simultaneously measuring diverse material properties such as morphology and chemical composition. Addressing this issue, we introduce infrared scattering scanning near-field optical microscopy (IR-sSNOM), a modern technique with the ability to overcome limitations and provide simultaneous topographical, mechanical, and chemical information. We demonstrate the capabilities of IR-sSNOM for investigation of four samples of PVDF membranes modified with 2-(methacryloyloxyethyl)trimethylammonium iodide and/or methacryloyloxyethyl phosphorylcholine in various ratios. These membranes, desirable for their specific properties, represent a challenging material for analysis due to their thermal instability and mechanical vulnerability. Employing Fourier transform infrared (FTIR) microscopy, IR-sSNOM, and Raman microscopy, we successfully overcame these challenges by carefully selecting the experimental parameters and performing detailed characterization of the polymer samples. Valuable insights into morphological and chemical homogeneity, the abundance of modifying side chains, and the distribution of different crystal phases of PVDF were obtained. Most notably, the presence of modifying side chains was confirmed by FTIR microscopy, the Raman spectral mapping revealed the distribution of crystalline phases of the studied polymer, and the IR-sSNOM showed the abundance of chemically diverse aggregates on the surface of the membranes, thanks to the unique nanometer-scale resolution and chemical sensitivity of this technique. This comprehensive approach represents a powerful toolset for characterization of polymeric materials at the nano- and microscale. We believe that this methodology can be applied to similar samples, provided that their thermal stability is considered, opening avenues for detailed exploration of physical and chemical properties in various scientific applications.

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“…To overcome this drawback, quaternary pyridinium monomers have been grafted on PVDF and showed extreme antimicrobial properties. 73…”

Section: Pvdf Biocompatibility and Applicationsmentioning

confidence: 99%

“…To overcome this drawback, quaternary pyridinium monomers have been graed on PVDF and showed extreme antimicrobial properties. 73 Another piece of research conducted to enhance the biocompatibility of PVDF was done via oxygen plasma and dopamine coating. The results show that oxygen plasma treatment for a short time improved PVDF biocompatibility up to four-fold, and dopamine coating created a strongly adhesive hydrophilic surface with a threefold enhancement in biocompatibility.…”

Section: Pvdf Biocompatibility and Applicationsmentioning

confidence: 99%