1
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Electrosynthesis of poly (4-amino-3-nitrostyrene) film and its characterization. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01775-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Yasmeen N, Kalecki J, Borowicz P, Kutner W, Sharma PS. Electrochemically Initiated Synthesis of Polyacrylamide Microgels and Core-shell Particles. ACS APPLIED POLYMER MATERIALS 2022; 4:452-462. [PMID: 35059644 PMCID: PMC8762648 DOI: 10.1021/acsapm.1c01359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 12/20/2021] [Indexed: 05/20/2023]
Abstract
Herein, we developed a simple procedure for synthesizing micrometer-sized microgel particles as a suspension in an aqueous solution and thin films deposited as shells on different inorganic cores. A sufficiently high constant potential was applied to the working electrode to commence the initiator decomposition that resulted in gelation. Under hydrodynamic conditions, this initiation allowed preparing different morphology microgels at room temperature. Importantly, neither heating nor UV-light illumination was needed to initiate the polymerization. Moreover, thin films of the cross-linked gel were anchored on different core substrates, including silica and magnetic nanoparticles. Scanning electron microscopy and transmission electron microscopy imaging confirmed the microgel particles' and films' irregular shape and porous structure. Energy-dispersive X-ray spectroscopy indicated that the core coating with the microgel film was successful. Dynamic light scattering measured the micrometer size of gel particles with different combinations of acrylic monomers. Thermogravimetric analysis and the first-derivative thermogravimetric analysis revealed that the microgels' thermal stability of different compositions was different. Fourier-transform infrared and 13C NMR spectroscopy showed successful copolymerization of the main, functional, and cross-linking monomers.
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Affiliation(s)
- Nabila Yasmeen
- Institute
of Physical Chemistry, Polish Academy of
Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Jakub Kalecki
- Institute
of Physical Chemistry, Polish Academy of
Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Pawel Borowicz
- Institute
of Physical Chemistry, Polish Academy of
Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Wlodzimierz Kutner
- Institute
of Physical Chemistry, Polish Academy of
Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
- Faculty
of Mathematics and Natural Sciences, School of Sciences, Cardinal Stefan Wyszynski University in Warsaw, Wóycickiego 1/3, 01-938 Warsaw, Poland
| | - Piyush S. Sharma
- Institute
of Physical Chemistry, Polish Academy of
Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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3
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Khalili MH, Afsar A, Zhang R, Wilson S, Dossi E, Goel S, Impey SA, Aria AI. Thermal response of multi-layer UV crosslinked PEGDA hydrogels. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2021.109805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Correa S, Grosskopf AK, Lopez Hernandez H, Chan D, Yu AC, Stapleton LM, Appel EA. Translational Applications of Hydrogels. Chem Rev 2021; 121:11385-11457. [PMID: 33938724 PMCID: PMC8461619 DOI: 10.1021/acs.chemrev.0c01177] [Citation(s) in RCA: 361] [Impact Index Per Article: 120.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Indexed: 12/17/2022]
Abstract
Advances in hydrogel technology have unlocked unique and valuable capabilities that are being applied to a diverse set of translational applications. Hydrogels perform functions relevant to a range of biomedical purposes-they can deliver drugs or cells, regenerate hard and soft tissues, adhere to wet tissues, prevent bleeding, provide contrast during imaging, protect tissues or organs during radiotherapy, and improve the biocompatibility of medical implants. These capabilities make hydrogels useful for many distinct and pressing diseases and medical conditions and even for less conventional areas such as environmental engineering. In this review, we cover the major capabilities of hydrogels, with a focus on the novel benefits of injectable hydrogels, and how they relate to translational applications in medicine and the environment. We pay close attention to how the development of contemporary hydrogels requires extensive interdisciplinary collaboration to accomplish highly specific and complex biological tasks that range from cancer immunotherapy to tissue engineering to vaccination. We complement our discussion of preclinical and clinical development of hydrogels with mechanical design considerations needed for scaling injectable hydrogel technologies for clinical application. We anticipate that readers will gain a more complete picture of the expansive possibilities for hydrogels to make practical and impactful differences across numerous fields and biomedical applications.
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Affiliation(s)
- Santiago Correa
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Abigail K. Grosskopf
- Chemical
Engineering, Stanford University, Stanford, California 94305, United States
| | - Hector Lopez Hernandez
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Doreen Chan
- Chemistry, Stanford University, Stanford, California 94305, United States
| | - Anthony C. Yu
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | | | - Eric A. Appel
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
- Bioengineering, Stanford University, Stanford, California 94305, United States
- Pediatric
Endocrinology, Stanford University School
of Medicine, Stanford, California 94305, United States
- ChEM-H Institute, Stanford
University, Stanford, California 94305, United States
- Woods
Institute for the Environment, Stanford
University, Stanford, California 94305, United States
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5
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Bonifacio MA, Cerqueni G, Cometa S, Licini C, Sabbatini L, Mattioli-Belmonte M, De Giglio E. Insights into Arbutin Effects on Bone Cells: Towards the Development of Antioxidant Titanium Implants. Antioxidants (Basel) 2020; 9:antiox9070579. [PMID: 32630762 PMCID: PMC7402158 DOI: 10.3390/antiox9070579] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/24/2020] [Accepted: 06/29/2020] [Indexed: 12/14/2022] Open
Abstract
Arbutin is a plant-derived glycosylated hydroquinone with antioxidant features, exploited to combat cell damage induced by oxidative stress. The latter hinders the osseointegration of bone prostheses, leading to implant failure. Little is known about arbutin antioxidant effects on human osteoblasts, therefore, this study explores the in vitro protective role of arbutin on osteoblast-like cells (Saos-2) and periosteum-derived progenitor cells (PDPCs). Interestingly, cells exposed to oxidative stress were protected by arbutin, which preserved cell viability and differentiation. Starting from these encouraging results, an antioxidant coating loaded with arbutin was electrosynthesized on titanium. Therefore, for the first time, a polyacrylate-based system was designed to release the effective concentration of arbutin in situ. The innovative coating was characterized from the physico-chemical and morphological point of view to achieve an optimized system, which was in vitro tested with cells. Morpho-functional evaluations highlighted the high viability and good compatibility of the arbutin-loaded coating, which also promoted the expression of PDPC differentiation markers, even under oxidative stress. These results agreed with the coatings’ in vitro antioxidant activity, which showed a powerful scavenging effect against DPPH radicals. Taken together, the obtained results open intriguing opportunities for the further development of natural bioactive coatings for orthopedic titanium implants.
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Affiliation(s)
- Maria A. Bonifacio
- Department of Chemistry, University of Bari Aldo Moro, 70126 Bari, Italy; (M.A.B.); (L.S.)
- Jaber Innovation s.r.l., 00144 Roma, Italy;
| | - Giorgia Cerqueni
- DISCLIMO Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy; (G.C.); (C.L.); (M.M.-B.)
| | | | - Caterina Licini
- DISCLIMO Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy; (G.C.); (C.L.); (M.M.-B.)
- DISAT—Department of Applied Science and Technology, Polytechnic of Turin, 10129 Turin, Italy
| | - Luigia Sabbatini
- Department of Chemistry, University of Bari Aldo Moro, 70126 Bari, Italy; (M.A.B.); (L.S.)
| | - Monica Mattioli-Belmonte
- DISCLIMO Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy; (G.C.); (C.L.); (M.M.-B.)
| | - Elvira De Giglio
- Department of Chemistry, University of Bari Aldo Moro, 70126 Bari, Italy; (M.A.B.); (L.S.)
- Correspondence: ; Tel.: +39-080-544-2021
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6
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Cometa S, Bonifacio MA, Ferreira AM, Gentile P, De Giglio E. Surface Characterization of Electro-Assisted Titanium Implants: A Multi-Technique Approach. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E705. [PMID: 32033256 PMCID: PMC7040792 DOI: 10.3390/ma13030705] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/17/2020] [Accepted: 01/22/2020] [Indexed: 12/20/2022]
Abstract
The understanding of chemical-physical, morphological, and mechanical properties of polymer coatings is a crucial preliminary step for further biological evaluation of the processes occurring on the coatings' surface. Several studies have demonstrated how surface properties play a key role in the interactions between biomolecules (e.g., proteins, cells, extracellular matrix, and biological fluids) and titanium, such as chemical composition (investigated by means of XPS, TOF-SIMS, and ATR-FTIR), morphology (SEM-EDX), roughness (AFM), thickness (Ellipsometry), wettability (CA), solution-surface interactions (QCM-D), and mechanical features (hardness, elastic modulus, adhesion, and fatigue strength). In this review, we report an overview of the main analytical and mechanical methods commonly used to characterize polymer-based coatings deposited on titanium implants by electro-assisted techniques. A description of the relevance and shortcomings of each technique is described, in order to provide suitable information for the design and characterization of advanced coatings or for the optimization of the existing ones.
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Affiliation(s)
| | - Maria A. Bonifacio
- Jaber Innovation s.r.l., 00144 Rome, Italy;
- Department of Chemistry, University of Bari “Aldo Moro”, 70126 Bari, Italy;
| | - Ana M. Ferreira
- School of Engineering, Newcastle University, Newcastle NE1 7RU, UK; (A.M.F.); (P.G.)
| | - Piergiorgio Gentile
- School of Engineering, Newcastle University, Newcastle NE1 7RU, UK; (A.M.F.); (P.G.)
| | - Elvira De Giglio
- Department of Chemistry, University of Bari “Aldo Moro”, 70126 Bari, Italy;
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7
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Medeiros MFXP, Leyva ME, Queiroz AAAD, Maron LB. Electropolymerization of polyaniline nanowires on poly(2-hydroxyethyl methacrylate) coated Platinum electrode. POLIMEROS 2020. [DOI: 10.1590/0104-1428.02020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
| | - Maria Elena Leyva
- Universidade Federal de Itajubá, Brasil; Universidade Federal de Itajubá, Brasil
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8
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Darafarin M, Eslami H, Raoufian E. Electropolymerization of styrene in alcoholic solution and preparation of its bilayer with polyacrylamide. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-018-2514-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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9
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Trzaskowska PA, Kuźmińska A, Butruk-Raszeja B, Rybak E, Ciach T. Electropolymerized hydrophilic coating on stainless steel for biomedical applications. Colloids Surf B Biointerfaces 2018; 167:499-508. [PMID: 29729627 DOI: 10.1016/j.colsurfb.2018.04.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 03/23/2018] [Accepted: 04/25/2018] [Indexed: 01/22/2023]
Abstract
Current metal implants (e.g. stents) covered with drug-eluting coatings are not robust for long-term usage. Other types and methods of coatings are needed, especially ones that are not prone to activity loss in vivo. In this paper, the method of stainless steel (SS) coating with poly(ethylene glycol) dimethacrylate (PEGDMA) with the use of electropolymerization (EP) is presented. The application of a specific and simple reaction mixture enabled the production of SS-PEGDMA materials that possessed a homogenous surface. The polymer coating was durable for 28 days of constant washing. The resulting materials were non-toxic and haemolysis did not occur after incubation with blood. Moreover, because the coating filled up scratches present on bare SS and hydrophilized the SS surface, it reduced fibrinogen adsorption five times in comparison to SS and, unlike on SS, no platelet activation was detected. The presented method is a very promising candidate for scale up due to its simplicity and low cost.
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Affiliation(s)
- Paulina A Trzaskowska
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; CEZAMAT PW, Poleczki 19, 02-822 Warsaw, Poland.
| | - Aleksandra Kuźmińska
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland.
| | - Beata Butruk-Raszeja
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland.
| | - Ewa Rybak
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland
| | - Tomasz Ciach
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; CEZAMAT PW, Poleczki 19, 02-822 Warsaw, Poland.
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10
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Satriano C, Forte G, Magrì A, Di Pietro P, Travaglia A, Pandini G, Gianì F, La Mendola D. Neurotrophin-mimicking peptides at the biointerface with gold respond to copper ion stimuli. Phys Chem Chem Phys 2018; 18:30595-30604. [PMID: 27786317 DOI: 10.1039/c6cp05476e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The peptide fragments NGF1-14 and BDNF1-12, encompassing the N-terminal domains, respectively, of the proteins nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) were used in this study for the fabrication of a hybrid gold/peptide biointerface. These peptides mimic the Trk receptor activation of the respective whole protein - with a crucial role played by copper ions - and exhibit, in bulk solution, a pH-dependent capability to complex copper. We demonstrate here the maintenance of peptide-specific responses at different pH values as well as the copper binding also for the adlayers formed upon physisorption at the gold surface. The physicochemical properties, including viscoelastic behavior of the adlayer and competitive vs. synergic interactions in sequential adsorption processes, were addressed both experimentally, by quartz crystal microbalance with dissipation monitoring (QCM-D) and circular dichroism (CD), and theoretically, by molecular dynamics (MD) calculations. Proof-of work biological assays with the neuroblastoma SY-SH5H cell line demonstrated that the developed hybrid Au/peptide nanoplatforms are very promising for implementation in pH- and metal-responsive systems for application in nanomedicine.
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Affiliation(s)
- C Satriano
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria, 6, I-95125 Catania, Italy.
| | - G Forte
- Department of Pharmaceutical Sciences, University of Catania, Viale Andrea Doria, 6, I-95125 Catania, Italy
| | - A Magrì
- Institute of Biostructures and Bioimages - Catania, National Council of Research (IBB-CNR), Via Paolo Gaifami, 16, I-95125 Catania, Italy
| | - P Di Pietro
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria, 6, I-95125 Catania, Italy.
| | - A Travaglia
- Centre for Neural Science, New York University, Washington Place, 4, New York, NY 10003, USA
| | - G Pandini
- Endocrinology, Department of Clinical and Experimental Medicine, Garibaldi-Nesima Medical Center, University of Catania, via Palermo n. 636, 95122 Catania, Italy
| | - F Gianì
- Endocrinology, Department of Clinical and Experimental Medicine, Garibaldi-Nesima Medical Center, University of Catania, via Palermo n. 636, 95122 Catania, Italy
| | - D La Mendola
- Department of Pharmacy, University of Pisa, via Bonanno Pisano, 6, I-56100 Pisa, Italy.
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11
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Ramabadran U, Ryan G, Zhou X, Farhat S, Manciu F, Tong Y, Ayler R, Garner G. Reduced Graphene Oxide on Nickel Foam for Supercapacitor Electrodes. MATERIALS 2017; 10:ma10111295. [PMID: 29137133 PMCID: PMC5706242 DOI: 10.3390/ma10111295] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/06/2017] [Accepted: 11/08/2017] [Indexed: 12/13/2022]
Abstract
The focus of this paper is the investigation of reduced graphene oxide (GO)/nickel foam (RGON) samples for use as supercapacitor electrodes. Nickel foam samples were soaked in a GO suspension and dried before being subjected to two different methods to remove oxygen. Atmospheric pressure annealed (APA) samples were treated with a varying number (10–18) of nitrogen plasma jet scans, where sample temperatures did not exceed 280 °C. Furnace annealed (FA) samples were processed in an atmosphere of hydrogen and argon, at temperatures ranging from 600 °C to 900 °C. Environmental Scanning Electron Microscope (ESEM) data indicated that the carbon to oxygen (C:O) ratio for APA samples was minimized at an intermediate number of plasma scans. Fourier Transform Infrared Spectroscopic (FTIR) and Raman spectroscopic data supported this finding. ESEM analysis from FA samples showed that with increasing temperatures of annealing, GO is transformed to reduced graphene oxide (RGO), with C:O ratios exceeding 35:1. X-ray Photoelectron Spectroscopy (XPS) and X-ray diffraction (XRD) data indicated the formation of RGO with an increasing annealing temperature until 800 °C, when oxygen reincorporation in the surface atomic layers becomes an issue. Supercapacitors, constructed using the FA samples, demonstrated performances that correlated with surface atomic layer optimization of the C:O ratio.
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Affiliation(s)
- Uma Ramabadran
- Department of Physics, Kettering University, Flint, MI 48504, USA.
| | - Gillian Ryan
- Department of Physics, Kettering University, Flint, MI 48504, USA.
| | - Xuan Zhou
- Department of Electrical and Computer Engineering, Kettering University, Flint, MI 48504, USA.
| | - Susan Farhat
- Department of Chemical Engineering, Kettering University, Flint, MI 48504, USA.
| | - Felicia Manciu
- Department of Physics, University of Texas at El Paso, El Paso, TX 79968, USA.
| | - Yigang Tong
- Department of Electrical and Computer Engineering, Kettering University, Flint, MI 48504, USA.
| | - Ryan Ayler
- Department of Mechanical Engineering, Kettering University, Flint, MI 48504, USA.
| | - Graham Garner
- Department of Chemical Engineering, Kettering University, Flint, MI 48504, USA.
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12
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Ribeiro CA, Martins MVS, Bressiani AH, Bressiani JC, Leyva ME, de Queiroz AAA. Electrochemical preparation and characterization of PNIPAM-HAp scaffolds for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 81:156-166. [PMID: 28887960 DOI: 10.1016/j.msec.2017.07.048] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 05/18/2017] [Accepted: 07/29/2017] [Indexed: 11/30/2022]
Abstract
In the last decade, a variety of methods for fabrication of three-dimensional biomimetic scaffolds based on hydrogels have been developed for tissue engineering. However, many methods require the use of catalysts which compromises the biocompatibility of the scaffolds. The electrochemical polymerization (ECP) of acrylic monomers has received an increased attention in recent years due to its versatility in the production of highly biocompatible coatings for the electrodes used in medical devices. The main aim of this work was the use of ECP as scaffold fabrication technique to produce highly porous poly(N-isopropylacrylamide) (PNIPAM)/hydroxyapatite (HAp) composite for bone tissue regeneration. The prepared PNIPAM-HAp porous scaffolds were characterized by SEM, FTIR, water swelling, porosity measurements and X-ray diffraction (XRD) techniques. FTIR indicates that ECP promotes a successful conversion of NIPAM to PNIPAM. The water swelling and porosity were shown to be controlled by the HAp content in PNIPAM-HAp scaffolds. The PNIPAM-HAp scaffolds exhibited no cytotoxicity to MG63 cells, showing that ECP are potentially useful for the production of PNIPAM-HAp scaffolds. To address the osteomyelitis, a significant complication in orthopedic surgeries, PNIPAM-HAp scaffolds were loaded with the antibiotic oxacillin. The oxacillin release and the bacterial killing activity of the released oxacillin from PNIPAM-HAp against S. aureus and P. aeruginosa were demonstrated. These observations demonstrate that ECP are promising technique for the production of non-toxic, biocompatible PNIPAM-HAp scaffolds for tissue engineering.
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Affiliation(s)
- Charlene Aparecida Ribeiro
- Post Graduate Program in Materials for Engineering, Federal University of Itajubá (UNIFEI) (UNIFEI), Av. BPS 1303, 37500-903 Itajubá, MG, Brazil
| | - Marcos Vinicius Surmani Martins
- Science and Materials Technology Center (CCTM) (IPEN/CNEN), Av. Professor Lineu Prestes 2242, 05508-000 São Paulo, SP, Brazil
| | - Ana Helena Bressiani
- Science and Materials Technology Center (CCTM) (IPEN/CNEN), Av. Professor Lineu Prestes 2242, 05508-000 São Paulo, SP, Brazil
| | - José Carlos Bressiani
- Science and Materials Technology Center (CCTM) (IPEN/CNEN), Av. Professor Lineu Prestes 2242, 05508-000 São Paulo, SP, Brazil
| | - Maria Elena Leyva
- Physics and Chemistry Institute (IFQ), Federal University of Itajubá (UNIFEI), Av. BPS 1303, 37500-903 Itajubá, MG, Brazil; High Voltage Laboratory (LAT-EFEI), Federal University of Itajubá (UNIFEI), Av. BPS 1303, 37500-903 Itajubá, MG, Brazil
| | - Alvaro Antonio Alencar de Queiroz
- Physics and Chemistry Institute (IFQ), Federal University of Itajubá (UNIFEI), Av. BPS 1303, 37500-903 Itajubá, MG, Brazil; High Voltage Laboratory (LAT-EFEI), Federal University of Itajubá (UNIFEI), Av. BPS 1303, 37500-903 Itajubá, MG, Brazil.
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13
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Magerl D, Philipp M, Qiu XP, Winnik FM, Müller-Buschbaum P. Swelling and Thermoresponsive Behavior of Linear versus Cyclic Poly(N-isopropylacrylamide) Thin Films. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00436] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- David Magerl
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Martine Philipp
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Xing-Ping Qiu
- Faculty
of Pharmacy and Department of Chemistry, Université de Montréal, CP 6128 Succursale Centre Ville, Montréal, QC H3C 3J7, Canada
| | - Françoise M. Winnik
- Faculty
of Pharmacy and Department of Chemistry, Université de Montréal, CP 6128 Succursale Centre Ville, Montréal, QC H3C 3J7, Canada
- World Premier
International
(WPI) Research Center Initiative, International Center for Materials
Nanoarchitectonics (MANA), and National Institute for Materials Science
(NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Peter Müller-Buschbaum
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
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14
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Kim HW, Lee HD, Jang SJ, Park HB. Highly chlorine and oily fouling tolerant membrane surface modifications byin situpolymerization of dopamine and poly (ethylene glycol) diacrylate for water treatment. J Appl Polym Sci 2014. [DOI: 10.1002/app.41661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hyo Won Kim
- Department of Energy Engineering; Hanyang University; Seoul 133-791 Republic of Korea
| | - Hee Dae Lee
- Department of Energy Engineering; Hanyang University; Seoul 133-791 Republic of Korea
| | - Seung Jin Jang
- Department of Energy Engineering; Hanyang University; Seoul 133-791 Republic of Korea
| | - Ho Bum Park
- Department of Energy Engineering; Hanyang University; Seoul 133-791 Republic of Korea
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15
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Milleret V, Simona BR, Lienemann PS, Vörös J, Ehrbar M. Electrochemical control of the enzymatic polymerization of PEG hydrogels: formation of spatially controlled biological microenvironments. Adv Healthc Mater 2014; 3:508-14. [PMID: 24574303 DOI: 10.1002/adhm.201300479] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 09/29/2013] [Indexed: 01/15/2023]
Abstract
Control of pH gradient profile at the electrode-electrolyte interfaces allows the control of the enzymatic PEG-hydrogel polymerization. By tuning the solution pH, buffer capacity, and the applied current, the extent of the local inhibition and confinement of the Factor XIII-mediated polymerization of PEG are controlled. This technology opens new perspectives for the production of 3D-structured biological microenvironments.
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Affiliation(s)
- Vincent Milleret
- Laboratory for Cell and Tissue Engineering, Department of Obstetrics; University Hospital Zurich; Schmelzbergstrasse 12, PATH G 48b 8091 Zurich Switzerland
| | - Benjamin R. Simona
- Laboratory of Biosensors and Bioelectronics; ETH Zurich Zurich Switzerland
| | - Philipp S. Lienemann
- Laboratory for Cell and Tissue Engineering, Department of Obstetrics; University Hospital Zurich; Schmelzbergstrasse 12, PATH G 48b 8091 Zurich Switzerland
- Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne (EPFL); Station 15, Bld AI 1109 1015 Lausanne Switzerland
| | - János Vörös
- Laboratory of Biosensors and Bioelectronics; ETH Zurich Zurich Switzerland
| | - Martin Ehrbar
- Laboratory for Cell and Tissue Engineering, Department of Obstetrics; University Hospital Zurich; Schmelzbergstrasse 12, PATH G 48b 8091 Zurich Switzerland
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16
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Cometa S, Iatta R, Ricci MA, Ferretti C, De Giglio E. Analytical characterization and antimicrobial properties of novel copper nanoparticle–loaded electrosynthesized hydrogel coatings. J BIOACT COMPAT POL 2013. [DOI: 10.1177/0883911513498960] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In this study, a novel antimicrobial coating was developed to avoid infections and to provide sterile conditions for stainless steel devices. Poly(ethylene glycol diacrylate) hydrogel thin films were modified with copper-based nanoparticles, following two different entrapment procedures. These coatings were firmly attached on metal substrates by means of a simple and fast electrochemical polymerization technique. The surface composition of the Cu nanoparticles–modified hydrogel coatings and their bactericidal effect against Staphylococcus aureus and Escherichia coli was studied, and the efficacy of such systems in preventing bacterial infections demonstrated.
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Affiliation(s)
| | - Roberta Iatta
- Department of Biomedical Sciences and Human Oncology, University of Bari “Aldo Moro,” Bari, Italy
| | - Maria Antonietta Ricci
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari “Aldo Moro,” Bari, Italy
| | - Concetta Ferretti
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - Elvira De Giglio
- Department of Chemistry, University of Bari “Aldo Moro,” Bari, Italy
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17
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Ding F, Shi X, Jiang Z, Liu L, Cai J, Li Z, Chen S, Du Y. Electrochemically stimulated drug release from dual stimuli responsive chitin hydrogel. J Mater Chem B 2013; 1:1729-1737. [DOI: 10.1039/c3tb00517h] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Hanawa T. Research and development of metals for medical devices based on clinical needs. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2012; 13:064102. [PMID: 27877526 PMCID: PMC5099759 DOI: 10.1088/1468-6996/13/6/064102] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2012] [Revised: 12/13/2012] [Accepted: 10/18/2012] [Indexed: 05/27/2023]
Abstract
The current research and development of metallic materials used for medicine and dentistry is reviewed. First, the general properties required of metals used in medical devices are summarized, followed by the needs for the development of α + β type Ti alloys with large elongation and β type Ti alloys with a low Young's modulus. In addition, nickel-free Ni-Ti alloys and austenitic stainless steels are described. As new topics, we review metals that are bioabsorbable and compatible with magnetic resonance imaging. Surface treatment and modification techniques to improve biofunctions and biocompatibility are categorized, and the related problems are presented at the end of this review. The metal surface may be biofunctionalized by various techniques, such as dry and wet processes. These techniques make it possible to apply metals to scaffolds in tissue engineering.
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19
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An innovative, easily fabricated, silver nanoparticle-based titanium implant coating: development and analytical characterization. Anal Bioanal Chem 2012; 405:805-16. [DOI: 10.1007/s00216-012-6293-z] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 07/12/2012] [Accepted: 07/20/2012] [Indexed: 01/31/2023]
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20
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Cotrone S, Cafagna D, Cometa S, De Giglio E, Magliulo M, Torsi L, Sabbatini L. Microcantilevers and organic transistors: two promising classes of label-free biosensing devices which can be integrated in electronic circuits. Anal Bioanal Chem 2012; 402:1799-811. [PMID: 22189629 PMCID: PMC7079887 DOI: 10.1007/s00216-011-5610-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 11/22/2011] [Accepted: 11/24/2011] [Indexed: 11/24/2022]
Abstract
Most of the success of electronic devices fabricated to actively interact with a biological environment relies on the proper choice of materials and efficient engineering of surfaces and interfaces. Organic materials have proved to be among the best candidates for this aim owing to many properties, such as the synthesis tunability, processing, softness and self-assembling ability, which allow them to form surfaces that are compatible with biological tissues. This review reports some research results obtained in the development of devices which exploit organic materials' properties in order to detect biologically significant molecules as well as to trigger/capture signals from the biological environment. Among the many investigated sensing devices, organic field-effect transistors (OFETs), organic electrochemical transistors (OECTs) and microcantilevers (MCLs) have been chosen. The main factors motivating this choice are their label-free detection approach, which is particularly important when addressing complex biological processes, as well as the possibility to integrate them in an electronic circuit. Particular attention is paid to the design and realization of biocompatible surfaces which can be employed in the recognition of pertinent molecules as well as to the research of new materials, both natural and inspired by nature, as a first approach to environmentally friendly electronics.
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Affiliation(s)
| | - Damiana Cafagna
- Department of Chemistry, University of Bari, 70126 Bari, Italy
| | - Stefania Cometa
- Department of Chemistry and Industrial Chemistry, Pisa University, 56126 Pisa, Italy
| | | | - Maria Magliulo
- Department of Chemistry, University of Bari, 70126 Bari, Italy
| | - Luisa Torsi
- Department of Chemistry, University of Bari, 70126 Bari, Italy
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21
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Hanawa T. A comprehensive review of techniques for biofunctionalization of titanium. J Periodontal Implant Sci 2011; 41:263-72. [PMID: 22324003 PMCID: PMC3259234 DOI: 10.5051/jpis.2011.41.6.263] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Accepted: 11/10/2011] [Indexed: 11/08/2022] Open
Abstract
A number of surface modification techniques using immobilization of biofunctional molecules of Titanium (Ti) for dental implants as well as surface properties of Ti and Ti alloys have been developed. The method using passive surface oxide film on titanium takes advantage of the fact that the surface film on Ti consists mainly of amorphous or low-crystalline and non-stoichiometric TiO(2). In another method, the reconstruction of passive films, calcium phosphate naturally forms on Ti and its alloys, which is characteristic of Ti. A third method uses the surface active hydroxyl group. The oxide surface immediately reacts with water molecules and hydroxyl groups are formed. The hydroxyl groups dissociate in aqueous solutions and show acidic and basic properties. Several additional methods are also possible, including surface modification techniques, immobilization of poly(ethylene glycol), and immobilization of biomolecules such as bone morphogenetic protein, peptide, collagen, hydrogel, and gelatin.
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Affiliation(s)
- Takao Hanawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
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22
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De Giglio E, Cafagna D, Giangregorio MM, Domingos M, Mattioli-Belmonte M, Cometa S. PHEMA-based thin hydrogel films for biomedical applications. J BIOACT COMPAT POL 2011. [DOI: 10.1177/0883911511410460] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Poly(2-hydroxyethyl methacrylate) based thin coatings were electro-synthesized by cyclic voltammetry on Au-coated quartz crystal surfaces to study different solid—liquid interfacial processes. By varying the electrochemical parameters and the presence or not of a crosslinking agent, films were obtained with thicknesses ranging from 5 to 90 nm. Surface characterization was performed by X-ray photoelectron spectroscopy, atomic force microscopy, and static contact angle measurements. Using quartz crystal microbalance with dissipation monitoring to investigate the relationship between the film thickness and the swelling behavior, it was found that these characteristics can be modulated by varying either the number of voltammetric cycles or the presence of the crosslinker. Cell adhesion and biocompatibility tests indicate that these film coatings were suitable for biomedical applications.
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Affiliation(s)
- E. De Giglio
- Department of Chemistry, University of Bari 'Aldo Moro', Bari, Italy
| | - D. Cafagna
- Department of Chemistry, University of Bari 'Aldo Moro', Bari, Italy
| | - MM Giangregorio
- Department of Chemistry, University of Bari 'Aldo Moro' , Bari, Italy
| | - M. Domingos
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria (IPL), Leiria, Portugal
| | - M. Mattioli-Belmonte
- Department of Molecular Pathology and Innovative Therapies, Universitá Politecnica delle Marche, Ancona, Italy
| | - S. Cometa
- Laboratory of Bioactive Polymeric Materials for Biomedical & Environmental Applications, Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy,
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23
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De Giglio E, Cometa S, Ricci M, Cafagna D, Savino A, Sabbatini L, Orciani M, Ceci E, Novello L, Tantillo G, Mattioli-Belmonte M. Ciprofloxacin-modified electrosynthesized hydrogel coatings to prevent titanium-implant-associated infections. Acta Biomater 2011; 7:882-91. [PMID: 20659594 DOI: 10.1016/j.actbio.2010.07.030] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Revised: 07/12/2010] [Accepted: 07/16/2010] [Indexed: 11/27/2022]
Abstract
New promising and versatile materials for the development of in situ sustained release systems consisting of thin films of either poly(2-hydroxyethyl methacrylate) or a copolymer based on poly(ethylene-glycol diacrylate) and acrylic acid were investigated. These polymers were electrosynthesized directly on titanium substrates and loaded with ciprofloxacin (CIP) either during or after the synthesis step. X-ray photoelectron spectroscopy was used to check the CIP entrapment efficiency as well as its surface availability in the hydrogel films, while high-performance liquid chromatography was employed to assess the release property of the films and to quantify the amount of CIP released by the coatings. These systems were then tested to evaluate the in vitro inhibition of methicillin-resistant Staphylococcus aureus (MRSA) growth. Moreover, a model equation is proposed which can easily correlate the diameter of the inhibition haloes with the amount of antibiotic released. Finally, MG63 human osteoblast-like cells were employed to assess the biocompatibility of CIP-modified hydrogel coatings.
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24
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De Giglio E, Cafagna D, Ricci M, Sabbatini L, Cometa S, Ferretti C, Mattioli-Belmonte M. Biocompatibility of Poly(Acrylic Acid) Thin Coatings Electro-synthesized onto TiAlV-based Implants. J BIOACT COMPAT POL 2010. [DOI: 10.1177/0883911510372290] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The protection of metal orthopedic implants against corrosion is a crucial medical problem. It was found that electrochemical polymerization of thin, passive poly(acrylic acid) (PAA) films on titanium and TiAlV substrates provides good anti-corrosion properties. In this work, an investigation of anti-corrosion features was carried out to clarify the hypothesis of the presence of an electrostatic contribution to the performance of a PAA coating. Ion release tests were performed at three different pHs; the pH dependence of the polymer swelling was examined by quartz crystal microbalance with dissipation monitoring, to establish the role of this phenomenon on the polymer barrier properties. The potential application of these PAA thin films as biocompatible protective coatings for metal implants and compatibility towards MG-63 human osteoblast-like cells was assessed.
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Affiliation(s)
- E. De Giglio
- Department of Chemistry, University of Bari, Bari, Italy
| | - D. Cafagna
- Department of Chemistry, University of Bari, Bari, Italy
| | - M.A. Ricci
- Department of Chemistry, University of Bari, Bari, Italy
| | - L. Sabbatini
- Department of Chemistry, University of Bari, Bari, Italy
| | - S. Cometa
- Laboratory of Bioactive Polymeric Materials for Biomedical & Environmental Applications, Chemistry & Industrial Chemistry Department University of Pisa, Pisa, Italy,
| | - C. Ferretti
- Department of Molecular Pathology and Innovative Therapies Marche Polytechnic University, Ancona, Italy
| | - M. Mattioli-Belmonte
- Department of Molecular Pathology and Innovative Therapies Marche Polytechnic University, Ancona, Italy
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25
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Development and characterization of rhVEGF-loaded poly(HEMA-MOEP) coatings electrosynthesized on titanium to enhance bone mineralization and angiogenesis. Acta Biomater 2010; 6:282-90. [PMID: 19607946 DOI: 10.1016/j.actbio.2009.07.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2009] [Revised: 06/24/2009] [Accepted: 07/09/2009] [Indexed: 11/20/2022]
Abstract
Osteointegration of titanium implants could be significantly improved by coatings capable of promoting both mineralization and angiogenesis. In the present study, a copolymeric hydrogel coating, poly-2-hydroxyethyl methacrylate-2-methacryloyloxyethyl phosphate (P(HEMA-MOEP)), devised to enhance calcification in body fluids and to entrap and release growth factors, was electrosynthesized for the first time on titanium substrates and compared to poly-2-hydroxyethyl methacrylate (PHEMA), used as a blank reference. Polymers exhibiting negatively charged groups, such as P(HEMA-MOEP), help to enhance implant calcification. The electrosynthesized coatings were characterized by X-ray photoelectron spectroscopy and atomic force microscopy. MG-63 human osteoblast-like cell behaviour on the coated specimens was investigated by scanning electron microscopy, MTT viability test and osteocalcin mRNA detection. The ability of negatively charged phosphate groups to promote hydroxyapatite-like calcium phosphate deposition on the implants was explored by immersing them in simulated body fluid. Similar biological responses were observed in both coated specimens, while calcium-phosphorus globules were detected only on P(HEMA-MOEP) surfaces pretreated with alkaline solution. Testing of the ability of P(HEMA-MOEP) hydrogels to entrap and release human recombinant vascular endothelial growth factor, to tackle the problem of insufficient oxygen and nutrient delivery, suggested that P(HEMA-MOEP)-coated titanium prostheses could represent a multifunctional material suitable for bone restoration applications.
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