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Oprea M, Pandele AM, Nicoara AI, Nicolescu A, Deleanu C, Voicu SI. Crown ether-functionalized cellulose acetate membranes with potential applications in osseointegration. Int J Biol Macromol 2023; 230:123162. [PMID: 36623620 DOI: 10.1016/j.ijbiomac.2023.123162] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/09/2023]
Abstract
Due to its inherent properties and wide availability, cellulose acetate is an extremely competitive candidate for the production of polymeric membranes. However, for best results in particular applications, membrane modification is required in order to minimize unwanted interactions and introduce novel characteristics to the pristine polymer. In this study, the surface of commercial cellulose acetate membranes was functionalized with 4'-aminobenzo-15-crown-5 ether, using a covalent bonding approach. The main goal was the improvement of the membranes biomineralization ability, thus making them prospective materials for bone regeneration applications. The proposed reaction mechanism was confirmed by XPS and NMR analysis while the presence of the functionalization agents in the membranes structure was showed by ATR FT-IR and Raman spectra. The effects of the functionalization process on the morphology, thermal and mechanical properties of the membranes were studied by SEM, TGA and tensile tests. The obtained results revealed that the cellulose acetate membranes were successfully functionalized with crown ether and provided a good understanding of the interactions that took place between the polymer and the functionalization agents. Moreover, promising results were obtained during the Taguchi biomineralization studies. SEM images, EDX mapping and XRD spectra indicating that the CA-AB15C5 membranes have a superior Ca2+ ions retention ability, this causing an accentuated calcium phosphate deposition on the modified polymeric fibers, compared to the neat CA membrane.
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Affiliation(s)
- Madalina Oprea
- University Politehnica of Bucharest, Faculty of Chemical Engineering and Biotechnologies, Department of Analytical Chemistry and Environmental Engineering, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania; Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, Romania
| | - Andreea Madalina Pandele
- University Politehnica of Bucharest, Faculty of Chemical Engineering and Biotechnologies, Department of Analytical Chemistry and Environmental Engineering, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania; Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, Romania
| | - Adrian Ionut Nicoara
- University Politehnica of Bucharest, Faculty of Chemical Engineering and Biotechnologies, Department of Science and Engineering of Oxide Materials and Nanomaterials, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Alina Nicolescu
- NMR Laboratory, "Petru Poni" Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41A, 700487, Iasi, Romania
| | - Calin Deleanu
- NMR Laboratory, "Petru Poni" Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41A, 700487, Iasi, Romania; "C.D. Nenitescu" Centre of Organic Chemistry, Romanian Academy, 060023 Bucharest, Romania
| | - Stefan Ioan Voicu
- University Politehnica of Bucharest, Faculty of Chemical Engineering and Biotechnologies, Department of Analytical Chemistry and Environmental Engineering, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania; Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, Romania.
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2
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Plasma-induced nanostructured metallic silver surfaces: study of bacteriophobic effect to avoid bacterial adhesion on medical devices. Heliyon 2022; 8:e10842. [PMID: 36217459 PMCID: PMC9547212 DOI: 10.1016/j.heliyon.2022.e10842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/20/2022] [Accepted: 09/26/2022] [Indexed: 12/17/2022] Open
Abstract
Biofilm formation in medical devices represents one of the major problems for the healthcare system, especially those that occur on implantable silicone-based devices. To provide a general solution to avoid biofilm formation in the first stages of development, this work studied how nanostructured metallic silver coatings hinder bacteria-surface interaction by preventing bacteria adhesion. The three studied silver nanostructures (“Sharp blades”, “Thick blades” and “Leaves”) combined superhydrophobic behavior with a physical impediment of the coating nanostructure that produced a bacteriophobic effect avoiding the adhesion mechanism of different bacterial strains. These silver nanostructures are immobilized on stretchable substrates through a polymeric thin film of plasma–polymerized penta-fluorophenyl methacrylate. The control over the nanostructures and therefore its bacteriophobic—bactericidal effect depends on the plasma polymerization conditions of the polymer. The characterization of this bacteriophobic effect through FE-SEM microscopy, live/dead cell staining, and direct bacterial adhesion counts, provided a complete mapping of how bacteria interact with the surface in each scenario. Results revealed that the bacterial adhesion was reduced by up to six orders of magnitude in comparison with uncoated surfaces thereby constituting an effective strategy to avoid the formation of biofilm on medical materials.
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3
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Khlyustova A, Kirsch M, Ma X, Cheng Y, Yang R. Surfaces with Antifouling-Antimicrobial Dual Function via Immobilization of Lysozyme on Zwitterionic Polymer Thin Films. J Mater Chem B 2022; 10:2728-2739. [DOI: 10.1039/d1tb02597j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to the emergence of wide-spread infectious diseases, there is a heightened need for antimicrobial and/or antifouling coatings that can be used to prevent infection and transmission in a variety...
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4
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Ma C, Nikiforov A, De Geyter N, Dai X, Morent R, Ostrikov KK. Future antiviral polymers by plasma processing. Prog Polym Sci 2021; 118:101410. [PMID: 33967350 PMCID: PMC8085113 DOI: 10.1016/j.progpolymsci.2021.101410] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 01/11/2021] [Accepted: 04/22/2021] [Indexed: 12/31/2022]
Abstract
Coronavirus disease 2019 (COVID-19) is largely threatening global public health, social stability, and economy. Efforts of the scientific community are turning to this global crisis and should present future preventative measures. With recent trends in polymer science that use plasma to activate and enhance the functionalities of polymer surfaces by surface etching, surface grafting, coating and activation combined with recent advances in understanding polymer-virus interactions at the nanoscale, it is promising to employ advanced plasma processing for smart antiviral applications. This trend article highlights the innovative and emerging directions and approaches in plasma-based surface engineering to create antiviral polymers. After introducing the unique features of plasma processing of polymers, novel plasma strategies that can be applied to engineer polymers with antiviral properties are presented and critically evaluated. The challenges and future perspectives of exploiting the unique plasma-specific effects to engineer smart polymers with virus-capture, virus-detection, virus-repelling, and/or virus-inactivation functionalities for biomedical applications are analysed and discussed.
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Key Words
- ACE2, angiotensin-converting enzyme 2
- Antiviral polymers
- BSA, bovine serum albumin
- CF4, tetrafluoromethane
- COVID-19, coronavirus disease 2019
- DC, direct current
- H2, hydrogen
- HBV, hepatitis B virus
- HMDSO, hexamethyldisiloxane
- IPNpp, plasma polymerized isopentyl nitrite
- MERS-CoV, middle east respiratory syndrome
- MW, microwave
- NO, nitric oxide
- PC, polycarbonate
- PDMS, polydimethylsiloxane
- PECVD, plasma-enhanced chemical vapour deposition
- PEG, polyethene glycol
- PET, polyethene terephthalate
- PFM, pentafluorophenyl methacrylate
- PP, polypropylene
- PPE, personal protective equipment
- PS, polystyrene
- PTFE, polytetrafluoroethylene
- PVC, polyvinyl chloride
- REF, reference
- RF, radio frequency
- RONS, reactive oxygen and nitrogen species
- RSV, respiratory syncytial virus
- RT-PCR, reverse transcription-polymerase chain reaction
- RV, rhinovirus
- SARS-CoV-2, severe acute respiratory syndrome coronavirus 2
- SEM, scanning electron microscopy
- TEOS-O2, tetraethyl orthosilicate and oxygen
- UV, ultraviolet
- WCA, water contact angle
- plasma processing
- surface modification
- ΔD, the variation of the dissipation
- Δf, the frequency shift
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Affiliation(s)
- Chuanlong Ma
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000 Ghent, Belgium
| | - Anton Nikiforov
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000 Ghent, Belgium
| | - Nathalie De Geyter
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000 Ghent, Belgium
| | - Xiaofeng Dai
- Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Rino Morent
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000 Ghent, Belgium
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics and QUT Centre for Materials Science, Queensland University of Technology (QUT), 4000 Brisbane, Australia
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Artigues M, Gilabert-Porres J, Texidó R, Borrós S, Abellà J, Colominas S. Analytical Parameters of a Novel Glucose Biosensor Based on Grafted PFM as a Covalent Immobilization Technique. SENSORS (BASEL, SWITZERLAND) 2021; 21:4185. [PMID: 34207185 PMCID: PMC8235154 DOI: 10.3390/s21124185] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 05/31/2021] [Accepted: 06/15/2021] [Indexed: 12/17/2022]
Abstract
Bioanalytical methods, in particular electrochemical biosensors, are increasingly used in different industrial sectors due to their simplicity, low cost, and fast response. However, to be able to reliably use this type of device, it is necessary to undertake in-depth evaluation of their fundamental analytical parameters. In this work, analytical parameters of an amperometric biosensor based on covalent immobilization of glucose oxidase (GOx) were evaluated. GOx was immobilized using plasma-grafted pentafluorophenyl methacrylate (pgPFM) as an anchor onto a tailored HEMA-co-EGDA hydrogel that coats a titanium dioxide nanotubes array (TiO2NTAs). Finally, chitosan was used to protect the enzyme molecules. The biosensor offered outstanding analytical parameters: repeatability (RSD = 1.7%), reproducibility (RSD = 1.3%), accuracy (deviation = 4.8%), and robustness (RSD = 2.4%). In addition, the Ti/TiO2NTAs/ppHEMA-co-EGDA/pgPFM/GOx/Chitosan biosensor showed good long-term stability; after 20 days, it retained 89% of its initial sensitivity. Finally, glucose concentrations of different food samples were measured and compared using an official standard method (HPLC). Deviation was lower than 10% in all measured samples. Therefore, the developed biosensor can be considered to be a reliable analytical tool for quantification measurements.
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Affiliation(s)
- Margalida Artigues
- Electrochemical Methods Laboratory-Analytical and Applied Chemistry Department at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017 Barcelona, Spain; (M.A.); (J.A.)
| | - Joan Gilabert-Porres
- Tractivus SL, Via Augusta, 394, 08017 Barcelona, Spain; (J.G.-P.); (R.T.); (S.B.)
- Grup d’Enginyeria de Materials (GEMAT) at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017 Barcelona, Spain
| | - Robert Texidó
- Tractivus SL, Via Augusta, 394, 08017 Barcelona, Spain; (J.G.-P.); (R.T.); (S.B.)
- Grup d’Enginyeria de Materials (GEMAT) at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017 Barcelona, Spain
| | - Salvador Borrós
- Tractivus SL, Via Augusta, 394, 08017 Barcelona, Spain; (J.G.-P.); (R.T.); (S.B.)
- Grup d’Enginyeria de Materials (GEMAT) at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017 Barcelona, Spain
- CIBER-BBN, Networking Center on Bioengineering, Biomaterials and Nanomedicine, 500018 Zaragoza, Spain
| | - Jordi Abellà
- Electrochemical Methods Laboratory-Analytical and Applied Chemistry Department at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017 Barcelona, Spain; (M.A.); (J.A.)
| | - Sergi Colominas
- Electrochemical Methods Laboratory-Analytical and Applied Chemistry Department at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017 Barcelona, Spain; (M.A.); (J.A.)
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6
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Du Y, Zeng Q, Yuan L, He L. Post-polymerization modification based on reactive fluorinated polymers reaction. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1903328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yiying Du
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - Qiugui Zeng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - Ling Yuan
- Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), School of Materials Science and Engineering, Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Chengdu, China
| | - Lirong He
- Polymer Research Insititute, Sichuan University, Chengdu, China
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7
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O’Sullivan D, O’Neill L, Bourke P. Direct Plasma Deposition of Collagen on 96-Well Polystyrene Plates for Cell Culture. ACS OMEGA 2020; 5:25069-25076. [PMID: 33043185 PMCID: PMC7542593 DOI: 10.1021/acsomega.0c02073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 08/24/2020] [Indexed: 05/31/2023]
Abstract
A cold atmospheric plasma unit was used to deposit a biologic, in this case collagen, onto a surface. A collagen coating was applied to 96-well polystyrene plates at a range of powers to determine the effects of the plasma power on the coating structure and viability. Plasma characterization was carried out using voltage, current, and power measurements. Coating characterization was completed using gravimetric measurement, cell growth, water contact angle, as well as spectroscopic analysis and compared to commercial collagen-coated plates. Cell culture studies were also undertaken. The plasma coating matched the performance of the commercial plate but dramatically reduced production time and cost. This method could allow for automated inline production of collagen-coated plates for cell culture applications.
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Affiliation(s)
- Denis O’Sullivan
- TheraDep,
Questum, Ballingarrane Science and Technology
Park, Clonmel, Co. Tipperary E91 V239, Ireland
- School
of Food Science and Environmental Health, Technical University Dublin, Dublin 7 D08 X622, Ireland
| | - Liam O’Neill
- TheraDep,
Questum, Ballingarrane Science and Technology
Park, Clonmel, Co. Tipperary E91 V239, Ireland
| | - Paula Bourke
- School
of Food Science and Environmental Health, Technical University Dublin, Dublin 7 D08 X622, Ireland
- School
of Biological Sciences, Queens University, Belfast BT7 1NN, Northern Ireland
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8
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Artigues M, Oh S, Gilabert-Porres J, Abellà J, Borrós S, Colominas S. Novel grafted electrochemical interface for covalent glucose oxidase immobilization using reactive pentafluorophenyl methacrylate. Colloids Surf B Biointerfaces 2019; 175:1-9. [PMID: 30508760 DOI: 10.1016/j.colsurfb.2018.11.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 10/24/2018] [Accepted: 11/27/2018] [Indexed: 11/19/2022]
Abstract
One of the most important factors for the proper functioning of enzymatic electrochemical biosensors is the enzyme immobilization strategy. In this work, glucose oxidase was covalently immobilized using pentafluorophenyl methacrylate (PFM) by applying two different surface modification techniques (plasma polymerization and plasma-grafting). The grafted surface was specifically designed to covalently anchor enzyme molecules. It was observed using QCM-D measurements the PFM plasma-grafted surfaces were able to retain a higher number of active enzyme molecules than the PFM polymerized surfaces. An amperometric glucose biosensor using titanium dioxide nanotubes array (TiO2NTAs) modified by PFM plasma-grafted surface was prepared. The resulting biosensor exhibited a fast response and short analysis time (approximately eight minutes per sample). Moreover, this biosensor achieved high sensitivity (9.76 μA mM-1) with a linear range from 0.25 to 1.49 mM and a limit of detection (LOD) equal to 0.10 mM of glucose. In addition, the glucose content of 16 different food samples was successfully measured using the developed biosensor. The obtained results were compared with the respective HPLC value and a deviation smaller than 10% was obtained in all the cases. Therefore, the biosensor was able to overcome all possible interferences in the selected samples/matrices.
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Affiliation(s)
- Margalida Artigues
- Electrochemical Methods Laboratory - Analytical and Applied Chemistry Department at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017, Barcelona, Spain
| | - Sejin Oh
- Grup d'Enginyeria de Materials (GEMAT) at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017, Barcelona, Spain
| | - Joan Gilabert-Porres
- Grup d'Enginyeria de Materials (GEMAT) at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017, Barcelona, Spain
| | - Jordi Abellà
- Electrochemical Methods Laboratory - Analytical and Applied Chemistry Department at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017, Barcelona, Spain
| | - Salvador Borrós
- Grup d'Enginyeria de Materials (GEMAT) at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017, Barcelona, Spain; CIBER-BBN, Networking Center on Bioengineering, Biomaterials and Nanomedicine, Zaragoza, Spain
| | - Sergi Colominas
- Electrochemical Methods Laboratory - Analytical and Applied Chemistry Department at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017, Barcelona, Spain.
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9
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Cifuentes-Rius A, Ivask A, Das S, Penya-Auladell N, Fabregas L, Fletcher NL, Houston ZH, Thurecht KJ, Voelcker NH. Gold Nanocluster-Mediated Cellular Death under Electromagnetic Radiation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:41159-41167. [PMID: 29116739 DOI: 10.1021/acsami.7b13100] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Gold nanoclusters (Au NCs) have become a promising nanomaterial for cancer therapy because of their biocompatibility and fluorescent properties. In this study, the effect of ultrasmall protein-stabilized 2 nm Au NCs on six types of mammalian cells (fibroblasts, B-lymphocytes, glioblastoma, neuroblastoma, and two types of prostate cancer cells) under electromagnetic radiation is investigated. Cellular association of Au NCs in vitro is concentration-dependent, and Au NCs have low intrinsic toxicity. However, when Au NC-incubated cells are exposed to a 1 GHz electromagnetic field (microwave radiation), cell viability significantly decreases, thus demonstrating that Au NCs exhibit specific microwave-dependent cytotoxicity, likely resulting from localized heating. Upon i.v. injection in mice, Au NCs are still present at 24 h post administration. Considering the specific microwave-dependent cytotoxicity and low intrinsic toxicity, our work suggests the potential of Au NCs as effective and safe nanomedicines for cancer therapy.
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Affiliation(s)
- Anna Cifuentes-Rius
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes Campus , Mawson Lakes Boulevard, Mawson Lakes, SA 5095, Australia
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus , 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Angela Ivask
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes Campus , Mawson Lakes Boulevard, Mawson Lakes, SA 5095, Australia
| | - Shreya Das
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes Campus , Mawson Lakes Boulevard, Mawson Lakes, SA 5095, Australia
| | - Nuria Penya-Auladell
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes Campus , Mawson Lakes Boulevard, Mawson Lakes, SA 5095, Australia
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus , 381 Royal Parade, Parkville, VIC 3052, Australia
- Grup d'Enginyeria de Materials (GEMAT), Institut Quimic de Sarria, Universitat Ramon Llull , Via Augusta 390, Barcelona 08022, Spain
| | - Laura Fabregas
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus , 381 Royal Parade, Parkville, VIC 3052, Australia
- Grup d'Enginyeria de Materials (GEMAT), Institut Quimic de Sarria, Universitat Ramon Llull , Via Augusta 390, Barcelona 08022, Spain
| | - Nicholas L Fletcher
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Centre for Advanced Imaging (CAI), The University of Queensland , Building 57, Research Road, St Lucia, QLD 4072, Australia
| | - Zachary H Houston
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Centre for Advanced Imaging (CAI), The University of Queensland , Building 57, Research Road, St Lucia, QLD 4072, Australia
| | - Kristofer J Thurecht
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Centre for Advanced Imaging (CAI), The University of Queensland , Building 57, Research Road, St Lucia, QLD 4072, Australia
| | - Nicolas H Voelcker
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes Campus , Mawson Lakes Boulevard, Mawson Lakes, SA 5095, Australia
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus , 381 Royal Parade, Parkville, VIC 3052, Australia
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10
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Cifuentes-Rius A, Boase NRB, Font I, Coronas N, Ramos-Perez V, Thurecht KJ, Borrós S. In Vivo Fate of Carbon Nanotubes with Different Physicochemical Properties for Gene Delivery Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11461-11471. [PMID: 28299925 DOI: 10.1021/acsami.7b00677] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Gene therapy has arisen as a pioneering technique to treat diseases by direct employment of nucleic acids as medicine. The major historical problem is to develop efficient and safe systems for the delivery of therapeutic genes into the target cells. Carbon nanotubes (CNTs) have demonstrated considerable promise as delivery vectors due to their (i) high aspect ratio and (ii) capacity to translocate through plasma membranes, known as the nanoneedle effect. To leverage these advantages, close attention needs to be paid to the physicochemical characteristics of the CNTs used. CNTs with different diameters (thinner and thicker) were treated by chemical oxidation to produce shorter fragments. Rigid (thick) and flexible (thin) CNTs, and their shortened versions, were coated with polyallylamine (ppAA) by plasma-enhanced chemical vapor deposition. The ppAA coating leads to a positively charged CNT surface that is able to electrostatically bind the green fluorescent protein plasmid reporter. This study shows how rigidity and length can affect their (i) behavior in biological media, (ii) ability to transfect in vitro, and (iii) biodistribution in vivo. This study also generates a set of basic design rules for the development of more efficient CNT-based gene-delivery vectors.
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Affiliation(s)
- Anna Cifuentes-Rius
- Grup d' Enginyeria de Materials (GEMAT), Institut Quı́mic de Sarrià, Universitat Ramon Llull , Via Augusta 390, Barcelona 08022, Spain
- Australian Institute for Bioengineering and Nanotechnology (AIBN), Centre for Advanced Imaging (CAI), Australian Research Council Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Nathan R B Boase
- Australian Institute for Bioengineering and Nanotechnology (AIBN), Centre for Advanced Imaging (CAI), Australian Research Council Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Ines Font
- Grup d' Enginyeria de Materials (GEMAT), Institut Quı́mic de Sarrià, Universitat Ramon Llull , Via Augusta 390, Barcelona 08022, Spain
| | - Nuria Coronas
- Grup d' Enginyeria de Materials (GEMAT), Institut Quı́mic de Sarrià, Universitat Ramon Llull , Via Augusta 390, Barcelona 08022, Spain
| | - Victor Ramos-Perez
- Grup d' Enginyeria de Materials (GEMAT), Institut Quı́mic de Sarrià, Universitat Ramon Llull , Via Augusta 390, Barcelona 08022, Spain
| | - Kristofer J Thurecht
- Australian Institute for Bioengineering and Nanotechnology (AIBN), Centre for Advanced Imaging (CAI), Australian Research Council Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Salvador Borrós
- Grup d' Enginyeria de Materials (GEMAT), Institut Quı́mic de Sarrià, Universitat Ramon Llull , Via Augusta 390, Barcelona 08022, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) , Zaragoza 50018, Spain
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11
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Sakudo A, Toyokawa Y, Imanishi Y, Murakami T. Crucial roles of reactive chemical species in modification of respiratory syncytial virus by nitrogen gas plasma. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 74:131-136. [PMID: 28254277 DOI: 10.1016/j.msec.2017.02.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/22/2016] [Accepted: 02/03/2017] [Indexed: 12/01/2022]
Abstract
The exact mechanisms by which nanoparticles, especially those composed of soft materials, are modified by gas plasma remain unclear. Here, we used respiratory syncytial virus (RSV), which has a diameter of 80-350nm, as a model system to identify important factors for gas plasma modification of nanoparticles composed of soft materials. Nitrogen gas plasma, generated by applying a short high-voltage pulse using a static induction (SI) thyristor power supply produced reactive chemical species (RCS) and caused virus inactivation. The plasma treatment altered the viral genomic RNA, while treatment with a relatively low concentration of hydrogen peroxide, which is a neutral chemical species among RCS, effectively inactivated the virus. Furthermore, a zero dimensional kinetic global model of the reaction scheme during gas plasma generation identified the production of various RCS, including neutral chemical species. Our findings suggest the nitrogen gas plasma generates RCS, including neutral species that damage the viral genomic RNA, leading to virus inactivation. Thus, RCS generated by gas plasma appears to be crucial for virus inactivation, suggesting this may constitute an important factor in terms of the efficient modification of nanoparticles composed of soft materials.
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Affiliation(s)
- Akikazu Sakudo
- Laboratory of Biometabolic Chemistry, School of Health Sciences, University of the Ryukyus, Nishihara, Okinawa 903-0215, Japan.
| | - Yoichi Toyokawa
- Laboratory of Biometabolic Chemistry, School of Health Sciences, University of the Ryukyus, Nishihara, Okinawa 903-0215, Japan
| | | | - Tomoyuki Murakami
- Department of Systems Design Engineering, Faculty of Science and Technology, Seikei University, Musashino-shi, Tokyo 180-8633, Japan
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Vilaró I, Yagüe JL, Borrós S. Superhydrophobic Copper Surfaces with Anticorrosion Properties Fabricated by Solventless CVD Methods. ACS APPLIED MATERIALS & INTERFACES 2017; 9:1057-1065. [PMID: 27977129 DOI: 10.1021/acsami.6b12119] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Due to continuous miniaturization and increasing number of electrical components in electronics, copper interconnections have become critical for the design of 3D integrated circuits. However, corrosion attack on the copper metal can affect the electronic performance of the material. Superhydrophobic coatings are a commonly used strategy to prevent this undesired effect. In this work, a solventless two-steps process was developed to fabricate superhydrophobic copper surfaces using chemical vapor deposition (CVD) methods. The superhydrophobic state was achieved through the design of a hierarchical structure, combining micro-/nanoscale domains. In the first step, O2- and Ar-plasma etchings were performed on the copper substrate to generate microroughness. Afterward, a conformal copolymer, 1H,1H,2H,2H-perfluorodecyl acrylate-ethylene glycol diacrylate [p(PFDA-co-EGDA)], was deposited on top of the metal via initiated CVD (iCVD) to lower the surface energy of the surface. The copolymer topography exhibited a very characteristic and unique nanoworm-like structure. The combination of the nanofeatures of the polymer with the microroughness of the copper led to achievement of the superhydrophobic state. AFM, SEM, and XPS were used to characterize the evolution in topography and chemical composition during the CVD processes. The modified copper showed water contact angles as high as 163° and hysteresis as low as 1°. The coating withstood exposure to aggressive media for extended periods of time. Tafel analysis was used to compare the corrosion rates between bare and modified copper. Results indicated that iCVD-coated copper corrodes 3 orders of magnitude slower than untreated copper. The surface modification process yielded repeatable and robust superhydrophobic coatings with remarkable anticorrosion properties.
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Affiliation(s)
- Ignasi Vilaró
- Grup d'Enginyeria de Materials (GEMAT), IQS-School of Engineering, Ramon Llull University , Via Augusta 390, 08017 Barcelona, Spain
| | - Jose L Yagüe
- Grup d'Enginyeria de Materials (GEMAT), IQS-School of Engineering, Ramon Llull University , Via Augusta 390, 08017 Barcelona, Spain
| | - Salvador Borrós
- Grup d'Enginyeria de Materials (GEMAT), IQS-School of Engineering, Ramon Llull University , Via Augusta 390, 08017 Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) , 50018 Zaragoza, Spain
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Akhavan B, Wise SG, Bilek MMM. Substrate-Regulated Growth of Plasma-Polymerized Films on Carbide-Forming Metals. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10835-10843. [PMID: 27676094 DOI: 10.1021/acs.langmuir.6b02901] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Although plasma polymerization is traditionally considered as a substrate-independent process, we present evidence that the propensity of a substrate to form carbide bonds regulates the growth mechanisms of plasma polymer (PP) films. The manner by which the first layers of PP films grow determines the adhesion and robustness of the film. Zirconium, titanium, and silicon substrates were used to study the early stages of PP film formation from a mixture of acetylene, nitrogen, and argon precursor gases. The correlation of initial growth mechanisms with the robustness of the films was evaluated through incubation of coated substrates in simulated body fluid (SBF) at 37° for 2 months. It was demonstrated that the excellent zirconium/titanium-PP film adhesion is linked to the formation of metallic carbide and oxycarbide bonds during the initial stages of film formation, where a 2D-like, layer-by-layer (Frank-van der Merwe) manner of growth was observed. On the contrary, the lower propensity of the silicon surface to form carbides leads to a 3D, island-like (Volmer-Weber) growth mode that creates a sponge-like interphase near the substrate, resulting in inferior adhesion and poor film stability in SBF. Our findings shed light on the growth mechanisms of the first layers of PP films and challenge the property of substrate independence typically attributed to plasma polymerized coatings.
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Affiliation(s)
- Behnam Akhavan
- School of Physics, University of Sydney , Sydney, New South Wales 2006, Australia
| | - Steven G Wise
- The Heart Research Institute , Sydney, New South Wales 2042, Australia
- Sydney Medical School, University of Sydney , Sydney, New South Wales 2006, Australia
| | - Marcela M M Bilek
- School of Physics, University of Sydney , Sydney, New South Wales 2006, Australia
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Das A, Theato P. Activated Ester Containing Polymers: Opportunities and Challenges for the Design of Functional Macromolecules. Chem Rev 2015; 116:1434-95. [DOI: 10.1021/acs.chemrev.5b00291] [Citation(s) in RCA: 285] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anindita Das
- Institute
for Technical and
Macromolecular Chemistry, University of Hamburg, D-20146 Hamburg, Germany
| | - Patrick Theato
- Institute
for Technical and
Macromolecular Chemistry, University of Hamburg, D-20146 Hamburg, Germany
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15
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Tsougeni K, Petrou PS, Awsiuk K, Marzec MM, Ioannidis N, Petrouleas V, Tserepi A, Kakabakos SE, Gogolides E. Direct Covalent Biomolecule Immobilization on Plasma-Nanotextured Chemically Stable Substrates. ACS APPLIED MATERIALS & INTERFACES 2015; 7:14670-14681. [PMID: 26098201 DOI: 10.1021/acsami.5b01754] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A new method for direct covalent immobilization of protein molecules (including antibodies) on organic polymers with plasma-induced random micronanoscale topography and stable-in-time chemical functionality is presented. This is achieved using a short (1-5 min) plasma etching and simultaneous micronanotexturing process, followed by a fast thermal annealing step, which induces accelerated hydrophobic recovery while preserving important chemical functionality created by the plasma. Surface-bound biomolecules resist harsh washing with sodium dodecyl sulfate and other detergents even at elevated temperatures, losing less than 40% of the biomolecules bound even at the harshest washing conditions. X-ray photoelectron spectroscopy, secondary-ion mass spectrometry, and electron paramagnetic resonance are used to unveil the chemical modification of the plasma-treated and stabilized surfaces. The nanotextured and chemically stabilized surfaces are used as substrates for the development of immunochemical assays for the sensitive detection of C-reactive protein and salmonella lipopolysaccharides through immobilization of the respective analyte-specific antibodies onto them. Such substrates are stable for a period of 1 year with ambient storage.
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Affiliation(s)
- K Tsougeni
- †Institute of Nanoscience and Nanotechnology, National Center For Scientific Research (NCSR) Demokritos, 15310 Agia Paraskevi, Greece
| | | | - K Awsiuk
- §M. Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - M M Marzec
- ∥Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
| | - N Ioannidis
- †Institute of Nanoscience and Nanotechnology, National Center For Scientific Research (NCSR) Demokritos, 15310 Agia Paraskevi, Greece
| | - V Petrouleas
- †Institute of Nanoscience and Nanotechnology, National Center For Scientific Research (NCSR) Demokritos, 15310 Agia Paraskevi, Greece
| | - A Tserepi
- †Institute of Nanoscience and Nanotechnology, National Center For Scientific Research (NCSR) Demokritos, 15310 Agia Paraskevi, Greece
| | | | - E Gogolides
- †Institute of Nanoscience and Nanotechnology, National Center For Scientific Research (NCSR) Demokritos, 15310 Agia Paraskevi, Greece
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Biomimetic approaches in bone tissue engineering: Integrating biological and physicomechanical strategies. Adv Drug Deliv Rev 2015; 84:1-29. [PMID: 25236302 DOI: 10.1016/j.addr.2014.09.005] [Citation(s) in RCA: 279] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 09/01/2014] [Accepted: 09/05/2014] [Indexed: 02/06/2023]
Abstract
The development of responsive biomaterials capable of demonstrating modulated function in response to dynamic physiological and mechanical changes in vivo remains an important challenge in bone tissue engineering. To achieve long-term repair and good clinical outcomes, biologically responsive approaches that focus on repair and reconstitution of tissue structure and function through drug release, receptor recognition, environmental responsiveness and tuned biodegradability are required. Traditional orthopedic materials lack biomimicry, and mismatches in tissue morphology, or chemical and mechanical properties ultimately accelerate device failure. Multiple stimuli have been proposed as principal contributors or mediators of cell activity and bone tissue formation, including physical (substrate topography, stiffness, shear stress and electrical forces) and biochemical factors (growth factors, genes or proteins). However, optimal solutions to bone regeneration remain elusive. This review will focus on biological and physicomechanical considerations currently being explored in bone tissue engineering.
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Wang C, Xu L, Cheng F, Wang H, Jia L. Curcumin induces structural change and reduces the growth of amyloid-β fibrils: a QCM-D study. RSC Adv 2015. [DOI: 10.1039/c5ra02314a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Curcumin inhibited Aβ fibril growth through leading to the structural conversion of the growing fibril to a more loosely constructed aggregate.
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Affiliation(s)
- Conggang Wang
- School of Life Science and Biotechnology
- Dalian University of Technology
- Dalian 116023
- P. R. China
| | - Li Xu
- School of Life Science and Biotechnology
- Dalian University of Technology
- Dalian 116023
- P. R. China
| | - Fang Cheng
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116023
- P. R. China
| | - Hanqi Wang
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116023
- P. R. China
| | - Lingyun Jia
- School of Life Science and Biotechnology
- Dalian University of Technology
- Dalian 116023
- P. R. China
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