Results 11 to 20 of about 963 (161)

Dual-functional sulfonated PEEK implants via graphene oxide–mediated BMP-2 gene delivery: enhanced osteogenic and antibacterial performance in vitro [PDF]

open access: yesFrontiers in Medicine
IntroductionPolyetheretherketone (PEEK) is a promising orthopedic implant material due to its bone-mimetic mechanical properties; however, its bioinert surface and susceptibility to bacterial colonization limit its clinical efficacy.
Yueying Pan   +9 more
doaj   +2 more sources

Targeting biofilm and virulence in Pseudomonas aeruginosa: AidH@SPEEK as a novel quorum-sensing inhibitor [PDF]

open access: yesMicrobiology Spectrum
Pseudomonas aeruginosa (PA), a gram-negative opportunistic pathogen, poses severe risks to immunocompromised patients. Conventional antibiotics often fail due to toxicity and resistance, primarily linked to biofilm formation controlled by quorum sensing (
Yiting Liu   +5 more
doaj   +2 more sources

Polydopamine grafting polyether ether ketone to stabilize growth factor for efficient osteonecrosis repair [PDF]

open access: yesScientific Reports
This study examines the biocompatibility, osteogenic potential, and effectiveness of polyether ether ketone (PEEK) composites for treating osteonecrosis, seeking to establish a theoretical basis for clinical application.
Yi Sun   +10 more
doaj   +2 more sources

New Modified SPEEK-Based Proton Exchange Membranes [PDF]

open access: yesPolymers
A decarbonized society demands cleaner and sustainable energy sources based on well-established or emerging technologies with the potential to make a significant contribution to energy storage and conversion, such as batteries, fuel cells and water and/or CO2 electrolyzers.
Teixeira, Fatima   +2 more
openaire   +5 more sources

The ability of SPEEK to promote the proliferation and osteogenic differentiation of BMSCs on PEEK surfaces [PDF]

open access: yesHeliyon
To investigate the ability of sulfonated polyetheretherketone (SPEEK) to promote the proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) and compare the effects of different degrees of sulfonation (DS), SPEEK was ...
Shuang Wang   +5 more
doaj   +2 more sources

Simultaneously Promoting Proton Conductivity and Mechanical Stability of SPEEK Membrane by Incorporating Porous g–C3N4 [PDF]

open access: yesMembranes
Proton exchange membranes are widely used in environmentally friendly applications such as fuel cells and electrochemical hydrogen compression. In these applications, an ideal proton exchange membrane should have both excellent proton conductivity and ...
Xiaoyao Wang, Benbing Shi
doaj   +2 more sources

Enhancing PEEK surface bioactivity: Investigating the effects of combining sulfonation with sub-millimeter laser machining

open access: yesMaterials Today Bio, 2023
Due to its superior mechanical properties and chemical stability, Polyetheretherketone (PEEK) has emerged as an alternative to conventional metal implants. However, the bio-inertness of PEEK's surface has limited its applications. Ambient sulfonation has
Slila Chayanun   +4 more
doaj   +1 more source

Review on Modification of Sulfonated Poly (-ether-ether-ketone) Membranes Used as Proton Exchange Membranes

open access: yesMedžiagotyra, 2015
The proton exchange membrane fuel cell (PEMFC) is a type of modern power, but the traditional proton exchange membranes (PEM) of PEMFC are limited by high methanol permeability and water uptake.
Xiaomin GAO, Yonghua LIU, Jinlong LI
doaj   +1 more source

Exosome-functionalized polyetheretherketone-based implant with immunomodulatory property for enhancing osseointegration

open access: yesBioactive Materials, 2021
The host immune response effecting on biomaterials is critical to determine implant fates and bone regeneration property. Bone marrow stem cells (BMSCs) derived exosomes (Exos) contain multiple biosignal molecules and have been demonstrated to exhibit ...
Lei Fan   +11 more
doaj   +1 more source

Enhanced Conductivity of Composite Membranes Based on Sulfonated Poly(Ether Ether Ketone) (SPEEK) with Zeolitic Imidazolate Frameworks (ZIFs)

open access: yesNanomaterials, 2018
The zeolitic imidazolate frameworks (ZIFs) ZIF-8, ZIF-67, and a Zn/Co bimetallic mixture (ZMix) were synthesized and used as fillers in the preparation of composite sulfonated poly(ether ether ketone) (SPEEK) membranes.
Arturo Barjola   +4 more
doaj   +1 more source

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