Recyclable and stable silver deposited magnetic nanoparticles with poly (vinyl pyrrolidone)-catechol coated iron oxide for antimicrobial activity

Mosaiab, Tamim; Jeong, Chan Jin; Shin, Gyo Jic; Choi, Kyung Ho; Lee, Sang Kug; Lee, Ik Soo; In, Insik

doi:10.1016/j.msec.2013.05.009

Cited by 62 publications

(32 citation statements)

References 41 publications

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“…). The UV–vis spectrum of the backbone with conjugated spiropyran and catechol (S/C‐PDM) exhibited distinctive absorption peaks at 230, 280, and 360 nm, while unmodified PS beads showed a broad absorption peak at 300–600 nm . The SP‐PS beads exhibited absorption patterns comparable to S/C‐PDM at 230 and 360 nm in addition to a broad absorption beyond 300 nm, which confirmed that the PS beads had been successfully coated with S/C‐PDM.…”

Section: Resultsmentioning

confidence: 74%

Photo‐switchable spiropyran immobilized polystyrene beads using catechol chemistry

Kang

Cho

Islamy

et al. 2017

Surface & Interface Analysis

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Catechol and spiropyran functional groups were conjugated to a polymer backbone, allowing immobilization on polystyrene beads (PS beads). The final product was capable of stably reproducing the optical properties of spiropyran. Through the outstanding surface adhesion properties of the catechol functional group, spiropyran was immobilized on PS beads. Switchable photoluminescence in the spiropyran coated PS bead surfaces was observed depending on irradiation with either UV or visible light. The surfaces of the PS beads were morphologically examined by field emission scanning electron microscopy and X-ray photoelectron spectroscopy was used for characterization of the constituent atoms. Furthermore, UV-Vis and fluorescence spectroscopy were used to confirm conversion between the spiropyran (SP) and merocyanine (MC) forms through UV or visible light irradiation on SP, while fluorescent images for both SP and MC were studied using confocal laser scanning microscopy. The confocal images of the SP-PS beads system onto MDAMB-231 cells under UV and visible light indicate the cellular uptake by emerging color within the cytoplasm. Advancing study, the remaining catechol groups can confers adhesive properties, given by contact angle data of various coated surfaces film. These stimuli-responsive coatings are compatible as drawing switchable photochromic material on versatile substrate shown in confocal images of propylene film. Overall, this great water solubility and biocompatibility PS beads system also showed potential as cell bio-imaging light stimuli responsive material, and the benefits of this system can also possibly address coat able advanced material for a wide range of surface light sensor applications.

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Section: Resultsmentioning

confidence: 74%

Photo‐switchable spiropyran immobilized polystyrene beads using catechol chemistry

Kang

Cho

Islamy

et al. 2017

Surface & Interface Analysis

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“…b and d), C 1s and O 1s were identified at 284 and 533 eV area, respectively, and N 1s was confirmed at 402 eV. For narrow‐scan spectra, the cationic amine (N + ) and neutral amine (N°) peaks of N 1s were at 399 and 402 eV, respectively . Only the N + peak existed as a quaternary salt form in the (C/S)‐q‐PDMA, but after the ion exchange reaction, the N° peak of the hybrid MMT composites increased with decreasing N + of (C/S)‐q‐PDMA.…”

Section: Resultsmentioning

confidence: 97%

Preparation of exfoliated montmorillonite nanocomposites with catechol/zwitterionic quaternized polymer for an antifouling coating

et al. 2014

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Here, we report the fabrication of montmorillonite (MMT) to incorporate an antifouling capability using 2‐chloro‐3′, 4′‐dihydroxyacetophenone (CCDP), and 1,3‐propanesultone quaternized poly(dimethyl amino)ethyl methacrylate [(C/S)‐q‐PDMA]. The dispersibility of MMT was improved through an ion exchange reaction between MMT and (C/S)‐q‐PDMA. The developed MMT with (C/S)‐q‐PDMA, consisting of catechol for adhesive properties, and this combination [(C/S)‐q‐PDMA] worked as a zwitterionic surfactants to enhance chain mobility in an aqueous medium. The d‐space interval is easy to enlarge and exfoliated the clay layers between MMT and different ratios of [(C/S)‐q‐PDMA] (1, 5, and 10 wt%). The degradation temperature of modified MMT composites is higher than that of the pure polymer without clay. The remaining CCDP moiety of MMT [(C/S)‐q‐PDMA] allowed easy access to surface coatings, which have been confirmed in terms of contact angle, XPS measurements, and antifouling effects through HeLa cell detachment. Finally, the beneficial influence of a coated polypropylene (PP) surface on the oxygen transmission rate and water vapor transmission suggest an emerging future for (C/S)‐q‐PDMA with an MMT hybrid coating composite. POLYM. ENG. SCI., 55:2111–2117, 2015. © 2014 Society of Plastics Engineers

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“…Polymeric materials play a fascinating role, with the potentiality to assist the researcher in searching for a better way to develop antimicrobial polymer that can easily bind to the surfaces of the matter . But when substrates coated with antimicrobial polymer come into contact with aqueous medium, the long‐term antimicrobial efficiency is difficult to gain.…”

Section: Resultsmentioning

confidence: 99%

Antimicrobial activity of water resistant surface coating from catechol conjugated polyquaternary amine on versatile substrates

Kim

Nam

Lee

et al. 2014

J of Applied Polymer Sci

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Water resistant polymer with adhesive behavior is reported to exhibit long-term antimicrobial activities under diverse conditions. To obtain highly adhesive polymer with prolonged antimicrobial activities and catechol moiety, 2-chloro-3 0 ,4 0 -dihydroxyacetophenone (CCDP) has been quaternized to poly(dimethylaminoethyl methacrylate) (PDMA). Later, for gaining the antimicrobial effects, the polymer (CCDP-q-PDMA) was quaternized with 1-bromododecane (C12) [CCDP/C12-q-PDMA]. X-ray photoelectron spectroscopy rectified the quaternization and adhesion of the polymer onto different substrates. The CCDP/C12-q-PDMA coated substrates exhibited remarkable bacterial killing efficiency against both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli, after incubation for 24 h. The remarkable antimicrobial activities exhibited in aqueous medium at 60 C for up to 60 days indicate the strong adhesiveness of CCDP/C12-q-PDMA on the substrate. Therefore, the synthesized polymer offers merit as a potential coating material, to protect a broad range of material from microbial contamination, for a prolonged period of time, under a highly stressed water environment.

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Recyclable and stable silver deposited magnetic nanoparticles with poly (vinyl pyrrolidone)-catechol coated iron oxide for antimicrobial activity

Cited by 62 publications

References 41 publications

Photo‐switchable spiropyran immobilized polystyrene beads using catechol chemistry

Photo‐switchable spiropyran immobilized polystyrene beads using catechol chemistry

Preparation of exfoliated montmorillonite nanocomposites with catechol/zwitterionic quaternized polymer for an antifouling coating

Antimicrobial activity of water resistant surface coating from catechol conjugated polyquaternary amine on versatile substrates

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