In-vitro evaluation of antibacterial and antibiofilm efficiency of radiation-modified polyurethane–ZnO nanocomposite to be used as a self-disinfecting catheter

Hosny, Alaa El-Dien M.S.; Farrag, Hala A.; Helmy, Omneya M.; Hagras, Soheir A. A.; Ali, Amr El‐Hag

doi:10.1080/16878507.2020.1719328

Cited by 9 publications

(9 citation statements)

References 42 publications

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“…The presence of more hydrophilic groups on the PUF-PVA gel carrier favors biofilm attachment and growth. This conclusion is in good agreement with other researchers [54,56].…”

Section: Enhanced Biofilm Attachment Of Puf-pva Gel Compared To Puf I...supporting

confidence: 94%

Novel carrier for seafood wastewater treatment using moving bed biofilm reactor system

Phan

Pham

Duong

et al. 2022

Environmental Engineering Research

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In this work, seafood wastewater was treated by using MBBR reactor over a novel carrier (PUF-PVA gel) derived from the combination of a porous (PUF) and hydrophilic surface (PVA gel). A freezing-thawing method was used for the preparation of the novel PUF-PVA gel which is reported for the first time. Experimental results indicated that PUF-PVA gel carrier which possesses an excellent textural structure (specific surface area of 3.4 m2/g, pore size in the range of 10 -40 μm and hydrophilic surface) accounts for faster water immersion and better microbial adhesion, resulting in the biofilm content attached at the start-up stage 2.4 times higher relative to conventional PUF carrier alone. The MBBR system can be operated stably at a hydraulic retention time (HRT) of 7 hours in which the organic loading rate ranged from 2.5 kg COD/m3.day to 5.1 kg COD/m3.day. When operated at the organic loading rate of 2.5 kg COD/m3.day, the maximum COD and the nitrogen removal efficiency of MBBR based on the PUF-PVA gel carrier were 92 ± 0.6% and 89 ± 3.4%, respectively, which is higher than that of the PUF carrier.

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“…The presence of more hydrophilic groups on the PUF-PVA gel carrier favors biofilm attachment and growth. This conclusion is in good agreement with other researchers [54,56].…”

Section: Enhanced Biofilm Attachment Of Puf-pva Gel Compared To Puf I...supporting

confidence: 94%

Novel carrier for seafood wastewater treatment using moving bed biofilm reactor system

Phan

Pham

Duong

et al. 2022

Environmental Engineering Research

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“…64 Researchers have attempted to incorporate NPs such as Ag, copper (Cu), ZnO, and TiO 2 into PU medical consumables (eg catheters) to improve the materials' antibacterial and anti-aging properties. [84][85][86] In dentistry, PUs are used mainly as thermosetting sealers and filling materials. The inclusion of NPs such as SiO 2 and nHA in PUs can improve antibacterial effects and adhesion to dental tissues.…”

Section: Other Applicationsmentioning

confidence: 99%

Biological Effects, Applications and Design Strategies of Medical Polyurethanes Modified by Nanomaterials

Wang

Dai

Xie

et al. 2022

IJN

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Polyurethane (PU) has wide application and popularity as medical apparatus due to its unique structural properties relationship. However, there are still some problems with medical PUs, such as a lack of functionality, insufficient long-term implantation safety, undesired stability, etc. With the rapid development of nanotechnology, the nanomodification of medical PU provides new solutions to these clinical problems. The introduction of nanomaterials could optimize the biocompatibility, antibacterial effect, mechanical strength, and degradation of PUs via blending or surface modification, therefore expanding the application range of medical PUs. This review summarizes the current applications of nano-modified medical PUs in diverse fields. Furthermore, the underlying mechanisms in efficiency optimization are analyzed in terms of the enhanced biological and mechanical properties critical for medical use. We also conclude the preparation schemes and related parameters of nano-modified medical PUs, with discussions about the limitations and prospects. This review indicates the current status of nano-modified medical PUs and contributes to inspiring novel and appropriate designing of PUs for desired clinical requirements.

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“…The treatment was started by RIGC of a mixture of AA and GMA onto the PU catheter, followed by in-situ formation of ZnONPs. The obtained nanocomposite catheter showed excellent antibacterial and anti-biofilm formation characteristics [ 77 ]. The latest progress in development of antimicrobial surfaces with metal and metal oxides NPs coatings have been recently reviewed [ 78 ].…”

Section: Synergizing Of Antimicrobial Properties By Metallic Nanoparticlesmentioning

confidence: 99%

Engineered Bioactive Polymeric Surfaces by Radiation Induced Graft Copolymerization: Strategies and Applications

Nasef

Gupta²,

Shameli

et al. 2021

Polymers

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The interest in developing antimicrobial surfaces is currently surging with the rise in global infectious disease events. Radiation-induced graft copolymerization (RIGC) is a powerful technique enabling permanent tunable and desired surface modifications imparting antimicrobial properties to polymer substrates to prevent disease transmission and provide safer biomaterials and healthcare products. This review aims to provide a broader perspective of the progress taking place in strategies for designing various antimicrobial polymeric surfaces using RIGC methods and their applications in medical devices, healthcare, textile, tissue engineering and food packing. Particularly, the use of UV, plasma, electron beam (EB) and γ-rays for biocides covalent immobilization to various polymers surfaces including nonwoven fabrics, films, nanofibers, nanocomposites, catheters, sutures, wound dressing patches and contact lenses is reviewed. The different strategies to enhance the grafted antimicrobial properties are discussed with an emphasis on the emerging approach of in-situ formation of metal nanoparticles (NPs) in radiation grafted substrates. The current applications of the polymers with antimicrobial surfaces are discussed together with their future research directions. It is expected that this review would attract attention of researchers and scientists to realize the merits of RIGC in developing timely, necessary antimicrobial materials to mitigate the fast-growing microbial activities and promote hygienic lifestyles.

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In-vitro evaluation of antibacterial and antibiofilm efficiency of radiation-modified polyurethane–ZnO nanocomposite to be used as a self-disinfecting catheter

Cited by 9 publications

References 42 publications

Novel carrier for seafood wastewater treatment using moving bed biofilm reactor system

Novel carrier for seafood wastewater treatment using moving bed biofilm reactor system

Biological Effects, Applications and Design Strategies of Medical Polyurethanes Modified by Nanomaterials

Engineered Bioactive Polymeric Surfaces by Radiation Induced Graft Copolymerization: Strategies and Applications

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