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Carvalho EO, Marques-Almeida T, Cruz BDD, Correia DM, Esperança JMSS, Irastorza I, Silvan U, Fernandes MM, Lanceros-Mendez S, Ribeiro C. Piezoelectric biomaterials with embedded ionic liquids for improved orthopedic interfaces through osseointegration and antibacterial dual characteristics. BIOMATERIALS ADVANCES 2024; 164:213970. [PMID: 39106539 DOI: 10.1016/j.bioadv.2024.213970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/03/2024] [Accepted: 07/25/2024] [Indexed: 08/09/2024]
Abstract
Orthopedic implant failures, primarily attributed to aseptic loosening and implant site infections, pose significant challenges to patient recovery and lead to revision surgeries. Combining piezoelectric materials with ionic liquids as interfaces for orthopedic implants presents an innovative approach to addressing both issues simultaneously. In this study, films of poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) incorporated with 1-ethyl-3-methylimidazolium hydrogen sulfate ([Emim][HSO4]) ionic liquid were developed. These films exhibited strong antibacterial properties, effectively reducing biofilm formation, thereby addressing implant-related infections. Furthermore, stem cell-based differentiation assays exposed the potential of the composite materials to induce osteogenesis. Interestingly, our findings also revealed the upregulation of calcium channel expression as a result of electromechanical stimulation, pointing to a mechanistic basis for the observed biological effects. This work highlights the potential of piezoelectric materials with ionic liquids to improve the longevity and biocompatibility of orthopedic implants. Offering dual-functionality for infection prevention and bone integration, these advancements hold significant potential for advancing orthopedic implant technologies and improving patient outcomes.
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Affiliation(s)
- E O Carvalho
- Physics Centre of Minho and Porto Universities (CF-UM-UP), LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057 Braga, Portugal; IB-S - Institute for Research and Innovation on Bio-Sustainability, University of Minho, 4710-057 Braga, Portugal
| | - T Marques-Almeida
- Physics Centre of Minho and Porto Universities (CF-UM-UP), LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057 Braga, Portugal; IB-S - Institute for Research and Innovation on Bio-Sustainability, University of Minho, 4710-057 Braga, Portugal
| | - B D D Cruz
- Physics Centre of Minho and Porto Universities (CF-UM-UP), LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057 Braga, Portugal; Centre of Chemistry, University of Minho, Braga 4710-057, Portugal; Centre of Molecular and Environmental Biology, University of Minho, 4710-057 Braga, Portugal
| | - D M Correia
- Centre of Chemistry, University of Minho, Braga 4710-057, Portugal
| | - J M S S Esperança
- LAQV/REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, 2829-516 Caparica, Portugal
| | - I Irastorza
- Physics Centre of Minho and Porto Universities (CF-UM-UP), LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057 Braga, Portugal; BCMaterials, Basque Center Centre for Materials, Applications, and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - U Silvan
- BCMaterials, Basque Center Centre for Materials, Applications, and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - M M Fernandes
- Physics Centre of Minho and Porto Universities (CF-UM-UP), LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057 Braga, Portugal; Centre for MicroElectroMechanics Systems (CMEMS), University of Minho, 4710-057 Guimarães, Portugal; LABBELS-Associate Laboratory, Braga, Guimarães, Portugal
| | - S Lanceros-Mendez
- Physics Centre of Minho and Porto Universities (CF-UM-UP), LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057 Braga, Portugal; BCMaterials, Basque Center Centre for Materials, Applications, and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain.
| | - C Ribeiro
- Physics Centre of Minho and Porto Universities (CF-UM-UP), LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057 Braga, Portugal; IB-S - Institute for Research and Innovation on Bio-Sustainability, University of Minho, 4710-057 Braga, Portugal.
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Sultana A, Alam MM, Crispin R, Zhao D. The enhanced ionic thermal potential by a polarized electrospun membrane. Chem Commun (Camb) 2024; 60:2196-2199. [PMID: 38299661 DOI: 10.1039/d3cc04199a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Inspired by thermally sensitive ion channels in human skin, a polarized membrane composed of a ferroelectric polymer fiber matrix is used to double the heat-induced potential in ionic thermoelectric devices. The comparison of the thermal potentials between different directions of polarization and temperature gradient indicates the importance of cation-dipole interactions for the enhancement.
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Affiliation(s)
- Ayesha Sultana
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden.
| | - Md Mehebub Alam
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden.
| | - Reverant Crispin
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden.
- Wallenberg Wood Science Center, Linköping University, Norrköping SE-601 74, Sweden
| | - Dan Zhao
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden.
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Qu M, Li S, Chen J, Xiao Y, Xiao J. Ion transport in ionic liquid/poly(vinylidene fluoride) system under electric fields: A molecular dynamics simulation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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4
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Effect of Nano-Sized Poly(Butyl Acrylate) Layer Grafted from Graphene Oxide Sheets on the Compatibility and Beta-Phase Development of Poly(Vinylidene Fluoride) and Their Vibration Sensing Performance. Int J Mol Sci 2022; 23:ijms23105777. [PMID: 35628584 PMCID: PMC9146892 DOI: 10.3390/ijms23105777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 02/04/2023] Open
Abstract
In this work, graphene oxide (GO) particles were modified with a nano-sized poly(butyl acrylate) (PBA) layer to improve the hydrophobicity of the GO and improve compatibility with PVDF. The improved hydrophobicity was elucidated using contact angle investigations, and exhibit nearly 0° for neat GO and 102° for GO-PBA. Then, the neat GO and GO-PBA particles were mixed with PVDF using a twin screw laboratory extruder. It was clearly shown that nano-sized PBA layer acts as plasticizer and shifts glass transition temperature from −38.7 °C for neat PVDF to 45.2 °C for PVDF/GO-PBA. Finally, the sensitivity to the vibrations of various frequencies was performed and the piezoelectric constant in the thickness mode, d33, was calculated and its electrical load independency were confirmed. Received values of the d33 were for neat PVDF 14.7 pC/N, for PVDF/GO 20.6 pC/N and for PVDF/GO-PBA 26.2 pC/N showing significant improvement of the vibration sensing and thus providing very promising systems for structural health monitoring and data harvesting.
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Qu M, Li S, Chen J, Xiao Y, Xiao J. Ion Transport in the EMITFSI/PVDF System at Different Temperatures: A Molecular Dynamics Simulation. ACS OMEGA 2022; 7:9333-9342. [PMID: 35356691 PMCID: PMC8945056 DOI: 10.1021/acsomega.1c06160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 02/02/2022] [Indexed: 05/13/2023]
Abstract
We used all-atom molecular dynamics simulations to study the ion transport in the 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide/poly(vinylidene fluoride) (EMITFSI/PVDF) system with 40.05 wt % EMITFSI at different temperatures. The glass-transition temperature (T g = 204 K) of this system shows a good agreement with the experimental value (200 K). With the increase of temperature, the peaks of the pair correlation function show an increasing trend. Interestingly, the coordination numbers of ion pairs and the degree of independent ion motion are mainly affected by the binding energy between ion pairs as the temperature increases. In addition, the ion transport properties with increasing temperature can be studied by the ion-pair relaxation times, ion-pair lifetimes, and diffusion coefficients. The simulation results illustrate that the ion transport is intensified. Especially, the cations can always diffuse faster than the anions. The power law shows that mobilities of anions and cations are seen to exhibit a "superionic" behavior. With the increase of temperature, transference numbers of anions decrease first and then increase and transference numbers of cations show the opposite changes; ionic conductivity increases gradually; and viscosity decreases gradually, indicating that the diffusion resistance of ions decreases. In general, after adding PVDF into the EMITFSI system, the glass-transition temperature and viscosity increase, the ionic conductivity and degree of independent ion motion decrease, and diffusion coefficients of cations decrease faster than those of the anions.
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Affiliation(s)
- Minghe Qu
- Molecules
and Materials Computation Institute, School of Chemistry and Chemical
Engineering, Nanjing University of Science
and Technology, Nanjing 210094, P. R. China
| | - Shenshen Li
- Molecules
and Materials Computation Institute, School of Chemistry and Chemical
Engineering, Nanjing University of Science
and Technology, Nanjing 210094, P. R. China
| | - Jian Chen
- Chuannan
Machinery Manufacturing Plant, Luzhou 646000, P. R. China
| | - Yunqin Xiao
- Molecules
and Materials Computation Institute, School of Chemistry and Chemical
Engineering, Nanjing University of Science
and Technology, Nanjing 210094, P. R. China
- Science
and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemical Technology, Xiangyang 441003, P. R. China
| | - Jijun Xiao
- Molecules
and Materials Computation Institute, School of Chemistry and Chemical
Engineering, Nanjing University of Science
and Technology, Nanjing 210094, P. R. China
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Liu Y, Hu J, Zhao X, Xie J, Song S, Sun S. Cooperative modification of
PVDF
electroactive films due to the exfoliated and oriented
Na
+
‐
MMT
with assistance of different cationic chain length ionic liquids. J Appl Polym Sci 2022. [DOI: 10.1002/app.52238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yan Liu
- Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education Changchun University of Technology Changchun China
| | - Jing Hu
- Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education Changchun University of Technology Changchun China
| | - Xuanchen Zhao
- Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education Changchun University of Technology Changchun China
| | - Junhao Xie
- Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education Changchun University of Technology Changchun China
| | - Shixin Song
- Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education Changchun University of Technology Changchun China
| | - Shulin Sun
- Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education Changchun University of Technology Changchun China
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Sedlak P, Gajdos A, Macku R, Majzner J, Holcman V, Sedlakova V, Kubersky P. The effect of thermal treatment on ac/dc conductivity and current fluctuations of PVDF/NMP/[EMIM][TFSI] solid polymer electrolyte. Sci Rep 2020; 10:21140. [PMID: 33273700 PMCID: PMC7713362 DOI: 10.1038/s41598-020-78363-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 11/23/2020] [Indexed: 11/09/2022] Open
Abstract
The experimental study deals with the investigation of the effect of diverse crystallinity of imidazolium ionic-liquid-based SPE on conductivity and current fluctuations. The experimental study was carried out on samples consisting of [EMIM][TFSI] as ionic liquid, PVDF as a polymer matrix and NMP as a solvent. After the deposition, the particular sample was kept at an appropriate temperature for a specific time in order to achieve different crystalline forms of the polymer in the solvent, since the solvent evaporation rate controls crystallization. The ac/dc conductivities of SPEs were investigated across a range of temperatures using broadband dielectric spectroscopy in terms of electrical conductivity. In SPE samples of the higher solvent evaporation rate, the real parts of conductivity spectra exhibit a sharper transition during sample cooling and an increase of overall conductivity, which is implied by a growing fraction of the amorphous phase in the polymer matrix in which the ionic liquid is immobilized. The conductivity master curves illustrate that the changing of SPEs morphology is reflected in the low frequency regions governed by the electrode polarization effect. The dc conductivity of SPEs exhibits Vogel–Fulcher–Tammann temperature dependence and increases with the intensity of thermal treatment. Spectral densities of current fluctuations showed that flicker noise, thermal noise and shot noise seems to be major noise sources in all samples. The increase of electrolyte conductivity causes a decrease in bulk resistance and partially a decrease in charge transfer resistance, while also resulting in an increase in shot noise. However, the change of electrode material results in a more significant change of spectral density of current fluctuations than the modification of the preparation condition of the solid polymer electrolyte. Thus, the contact noise is considered to contribute to overall current fluctuations across the samples.
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Affiliation(s)
- Petr Sedlak
- Faculty of Electrical Engineering and Communications, Brno University of Technology, Technická 10, Brno, 616 00, Czech Republic.
| | - Adam Gajdos
- Faculty of Electrical Engineering and Communications, Brno University of Technology, Technická 10, Brno, 616 00, Czech Republic
| | - Robert Macku
- Faculty of Electrical Engineering and Communications, Brno University of Technology, Technická 10, Brno, 616 00, Czech Republic
| | - Jiri Majzner
- Faculty of Electrical Engineering and Communications, Brno University of Technology, Technická 10, Brno, 616 00, Czech Republic
| | - Vladimir Holcman
- Faculty of Electrical Engineering and Communications, Brno University of Technology, Technická 10, Brno, 616 00, Czech Republic
| | - Vlasta Sedlakova
- Faculty of Electrical Engineering and Communications, Brno University of Technology, Technická 10, Brno, 616 00, Czech Republic
| | - Petr Kubersky
- Faculty of Electrical Engineering, Regional Innovation Centre for Electric Engineering, University of West Bohemia, Univerzitni 8, Plzen, 301 00, Czech Republic
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