Nanocomposite multifunctional polyelectrolyte thin films with copper nanoparticles as the antimicrobial coatings

Kruk, Tomasz; Gołda-Cępa, Monika; Szczepanowicz, Krzysztof; Szyk-Warszyńska, Lilianna; Brzychczy-Włoch, Monika; Kotarba, Andrzej; Warszyński, Piotr

doi:10.1016/j.colsurfb.2019.05.014

Cited by 30 publications

(17 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Molefi et al [23] investigated polyethylene/-CuNP melt mixing with 0~5 vol.% CuNP, and they found that the tensile modulus generally increased with increasing CuNP content. When exposed to seawater, CuNP are oxidized into free Cu ions, which play a role in antimicrobial and antifouling [25,26]. As we know, the distribution of CuNP can be improved after surface treatment.…”

Section: Introductionmentioning

confidence: 99%

Cu Nanoparticle-Modified High-Density Polyethylene Monofilament and Its Antifouling Performance on Fishing Netting

Liu

Wang

et al. 2019

International Journal of Polymer Science

View full text Add to dashboard Cite

Cu nanoparticles (CuNPs) were modified by organic surfactant, then CuNP-modified high-density polyethylene (CuNP/HDPE) monofilaments were prepared by melt spinning. The effect of CuNP content on the morphology and properties of nanocomposite monofilaments was investigated. FT-IR and dynamic light scattering proved the successful surface modification for CuNP. Scanning electron microscope was used to observe the dispersed behavior of the CuNP. When the CuNP content was less than 1.0 wt%, the CuNPs were well dispersed in these nanocomposite monofilaments, and the increase of crystallization rate, the breaking strength, and knot strength were observed by differential scanning calorimeter and tensile test. Therefore, nanocomposite monofilaments showed comparable properties at low CuNP contents. With increasing CuNP content, the width of tanδ peak and △Ea for α-relaxation from dynamic mechanical analysis were increased, indicating more amorphous components near the crystalline regions. In addition, burst release of Cu ions in seawater was observed. The coupon tests demonstrated that CuNPs could significantly improve antibiofouling performance of CuNP/HDPE fishing netting. CuNP/HDPE fishing netting have a strong potential for using in marine antifouling mitigation.

show abstract

Section: Introductionmentioning

confidence: 99%

Cu Nanoparticle-Modified High-Density Polyethylene Monofilament and Its Antifouling Performance on Fishing Netting

Liu

Wang

et al. 2019

International Journal of Polymer Science

View full text Add to dashboard Cite

show abstract

“…[ 40 ] This is postulated to be due to surface aggregation of the nanoparticles. [ 41 ] Furthermore, higher MW polymers yield a steeper exponential growth phase than lower MW polymers, which explains the higher growth rate of alginate MVG and LVG compared to vLVG at early stages. [ 33 ]…”

Section: Discussionmentioning

confidence: 99%

Engineering the Multienzymatic Activity of Cerium Oxide Nanoparticle Coatings for the Antioxidant Protection of Implants

Abuid

Urdaneta

Gattás‐Asfura

et al. 2021

Advanced NanoBiomed Research

View full text Add to dashboard Cite

Imbalance of oxidants is a universal contributor to the failure of implanted devices and tissues. A sustained oxidative environment leads to cytotoxicity, prolonged inflammation, and ultimately host rejection of implanted devices/grafts. The incorporation of antioxidant materials can inhibit this redox/inflammatory cycle and enhance implant efficacy. Cerium oxide nanoparticle (CONP) is a highly promising agent that exhibits potent, ubiquitous, and self‐renewable antioxidant properties. Integrating CONP as surface coatings provides ease in translating antioxidant properties to various implants/grafts. Herein, the formation of CONP coatings, generated via the sequential deposition of CONP and alginate, and the impact of coating properties, pH, and polymer molecular weight, on their resulting redox profile are described. Investigation of CONP deposition, layer formation, and coating uniformity/thickness on their resulting oxidant scavenging activity identify key parameters for customizing global antioxidant properties. Results found lower molecular weight alginates and physiological pH shift CONP activity to a higher H2O2 to O2−‐scavenging capability. The antioxidant properties measured for these various coatings translate to distinct antioxidant protection to the underlying encapsulated cells. Information gained from this work can be leveraged to tailor coatings toward specific oxidant‐scavenging applications and prolong the function of medical devices and cellular implants.

show abstract

“…The surface analysis was performed using a ZEISS LSM780 confocal fluorescence microscope. For each sample, at least 10 images of different surface areas were taken, and the calculation of the area occupied by the life and dead bacteria was performed using the ZEN software [ 37 ]. All the measurements reported in this paper were at least triplicated.…”

Section: Methodsmentioning

confidence: 99%

Anodic Electrodeposition of Chitosan–AgNP Composites Using In Situ Coordination with Copper Ions

et al. 2021

Self Cite

View full text Add to dashboard Cite

Chitosan is an attractive material for biomedical applications. A novel approach for the anodic electrodeposition of chitosan–AgNP composites using in situ coordination with copper ions is proposed in this work. The surface and cross-section morphology of the obtained coating with varying concentrations of AgNPs were evaluated by SEM, and surface functional groups were analyzed with FT-IR spectroscopy. The mechanism of the formation of the coating based on the chelation of Cu(II) ions with chitosan was discussed. The antibacterial activity of the coatings towards Staphylococcus epidermidis ATCC 35984/RP62A bacteria was analyzed using the live–dead approach. The presented results indicate that the obtained chitosan–AgNP-based films possess some limited anti-biofilm-forming properties and exhibit moderate antibacterial efficiency at high AgNP loads.

show abstract

Nanocomposite multifunctional polyelectrolyte thin films with copper nanoparticles as the antimicrobial coatings

Cited by 30 publications

References 32 publications

Cu Nanoparticle-Modified High-Density Polyethylene Monofilament and Its Antifouling Performance on Fishing Netting

Cu Nanoparticle-Modified High-Density Polyethylene Monofilament and Its Antifouling Performance on Fishing Netting

Engineering the Multienzymatic Activity of Cerium Oxide Nanoparticle Coatings for the Antioxidant Protection of Implants

Anodic Electrodeposition of Chitosan–AgNP Composites Using In Situ Coordination with Copper Ions

Contact Info

Product

Resources

About