Results 1 to 10 of about 1,042 (180)

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

Frontiers 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, Yueying Pan, Bumairemu Yiminjiang, Bumairemu Yiminjiang, Adilai Abula, Adilai Abula, Refeina Tuerxun, Refeina Tuerxun, Maihefuzi Aishan, Maihefuzi Aishan   +9 more
doaj   +2 more sources

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

Microbiology 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, Dongbo Li, Meng Zhou, Liru Zhao, Liujing Chen, Zhongle Cheng   +5 more
doaj   +2 more sources

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

Scientific 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, Jingyun Liu, Kaijia Chen, Nannan Zhong, Chengpeng He, Xinming Luan, Xiaobei Zang, Jianbo Sun, Ning Cao, Wenbo Wang, Qiang Ren   +10 more
doaj   +2 more sources

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

Membranes
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

Spectroscopy and Cyclic Voltammetry Properties of SPEEK/CuO Nanocomposite at Screen-Printed Gold Electrodes

Nanomaterials, 2022
A successful electrochemical study of copper oxide nanoparticles (CuO NPs), sulfonated poly (ether ether ketone) polymer (SPEEK), and sulfonated polyether ether ketone-copper oxide (SPEEK/CuO) nanocomposite on bare gold electrodes was conducted.
Omolola E. Fayemi, Onkarabile G. Pooe, Funmilola A. Adesanya, Ikechukwu P. Ejidike   +3 more
doaj   +1 more source

Antimicrobial Peptide Conjugated on Graphene Oxide-Containing Sulfonated Polyetheretherketone Substrate for Effective Antibacterial Activities against Staphylococcus aureus

Antibiotics, 2023
In the present study, the antimicrobial peptide nisin was successfully conjugated onto the surface of sulfonated polyetheretherketone (SPEEK), which was decorated with graphene oxide (GO) to investigate its biofilm resistance and antibacterial properties.
Selvaraj Rajesh Kumar, Chih-Chien Hu, Truong Thi Tuong Vi, Dave W. Chen, Shingjiang Jessie Lue   +4 more
doaj   +1 more source

Evaluation of power generation and treatment efficiency of dairy wastewater in microbial fuel cell using TiO2 – SPEEK as proton exchange membrane

Water Science and Technology, 2021
The aim of this study is to synthesise SPEEK composite proton exchange membrane with the addition of TiO2 nanofillers for microbial fuel cell application.
D. Vidhyeswari, A. Surendhar, S. Bhuvaneshwari   +2 more
doaj   +1 more source

Immobilizing enoxacin on implant by polyvinyl butyral coating to promote osseointegration in osteoporosis with infection

Materials & Design, 2023
Controlling infections and inhibiting osteoclasts are crucial for the prognosis of bone abnormalities by implants in osteoporosis patients. Here, using bio-inert polyetheretherketone (PEEK) as the representative and polyvinyl butyral (PVB) as a coating ...
Xinxin Bai, Xintian Zhang, Rui Zhang, Wenhao Chen, Han Wang, Jiecheng Xiao, Quan Liu, Shaohuang Weng, Min Chen   +8 more
doaj   +1 more source

Sulfonated PEEK-statins delivery system enhances bone repair in mice with skull defect

Di-san junyi daxue xuebao, 2020
Objective To explore the effect of sulfonated poly-ether-ether-ketone (SPEEK)-statin delivery system on the repair of bone defect, H-type blood vessels and bone formation.
LYU Dan, SUN Yingxiao, OUYANG Liping, LI Ling   +3 more
doaj   +1 more source

Effect of Covalent Organic Frameworks Containing Different Groups on Properties of Sulfonated Poly(ether ether ketone) Matrix Proton Exchange Membranes

Nanomaterials, 2022
The rich −SO3H groups enable sulfonated poly (ether ether ketone) (SPEEK) to possess excellent proton conductivities in proton exchange membrane (PEM), but cause excessive water absorption, resulting in the decline of dimensional stability.
Xiaoyu Meng, Yinan Lv, Lei Ding, Luman Peng, Qiwang Peng, Chuanbo Cong, Haimu Ye, Qiong Zhou   +7 more
doaj   +1 more source