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AhadiParsa M, Dehghani A, Ramezanzadeh B. Sulfonated Polyaniline-Grafted Two-Dimensional Ti 3C 2-MXene (SPANI-MXene) Nanoplatform for Designing an Advanced Smart Self-Healable Coating System. ACS Appl Mater Interfaces 2023; 15:24756-24768. [PMID: 37163998 DOI: 10.1021/acsami.2c19946] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
MXene nanosheets (MXenes), a brand-new classification of two-dimensional (2D) nanomaterials, are assumed to be highly functional components in anticorrosion polymeric systems. In general, MXenes possess many advantageous features that can be utilized to improve the polymeric matrices' anticorrosion performance. In this work, zinc ions (Zn) were deposited on the sulfonated polyaniline (SPANI) that was polymerized on Ti3C2-MXene surfaces (MXP-Zn) in order to achieve a high-performance anticorrosion nanofiller for epoxy coating (EP-MXP-Zn). Field-emission scanning electron microscopy-transmission electron microscopy images, Fourier transform infrared, Raman, X-ray diffraction, UV-vis, derivative thermogravimetry, and thermogravimetric analysis have evidenced the successful characterization of the MXP-Zn nanocomposite. Likewise, the excellent barrier properties of SPANI, in conjunction with the cathodic protection of Zn, resulted in a novel nanocomposite that could mitigate the negative consequences of destructive ions' attack on the metal surface in an aggressive media. Quantitative and qualitative anticorrosion measurements verified the outstanding anticorrosion performance of EP-MXP-Zn over time in severe conditions. According to the electrochemical impedance spectroscopy assessments, the |Z0.01 Hz| value for EP-MXP-Zn was 1010.04 Ω cm2, which was over 105 times greater than that of neat EP (104.66 Ω cm2) over a 6-week period of immersion in a 3.5 wt % NaCl solution.
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Affiliation(s)
- Mobina AhadiParsa
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran 1668836471, Iran
| | - Ali Dehghani
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran 1668836471, Iran
| | - Bahram Ramezanzadeh
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran 1668836471, Iran
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Chen X, Zhang H, Cui J, Wang Y, Li M, Zhang J, Wang C, Liu Z, Wei Q. Enhancing Conductivity and Self-Healing Properties of PVA/GEL/OSA Composite Hydrogels by GO/SWNTs for Electronic Skin. Gels 2023; 9:gels9020155. [PMID: 36826325 PMCID: PMC9956163 DOI: 10.3390/gels9020155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/07/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
The use of flexible, self-healing conductive hydrogels as a type of typical electronic skin with the function of transmitting sensory signals has attracted wide attention in the field of biomaterials. In this study, composite hydrogels based on polyvinyl alcohol (PVA), gelatin (GEL), oxidized sodium alginate (OSA), graphene oxide (GO), and single-walled carbon nanotubes (SWNTs) were successfully prepared. The hydrogen and imine bonding of the composite hydrogels gives them excellent self-healing properties. Their self-healing properties restore 68% of their breaking strength and over 95% of their electrical conductivity. The addition of GO and SWNTs enables the PGO-GS hydrogels to achieve a compressive modulus and conductivity of 42.2 kPa and 29.6 mS/m, which is 8.2 times and 1.5 times that of pure PGO, respectively. Furthermore, the PGO-GS hydrogels can produce profound feedback signals in response to deformation caused by external forces and human movements such as finger flexion and speech. In addition, the PGO-GS hydrogels exhibit superior biocompatibility compared to PGO. All of these results indicate that the PGO-GS hydrogels have great potential with respect to future applications in the field of electronic skin.
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Affiliation(s)
- Xiaohu Chen
- Department of Indurstry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
- Bio-Additive Manufacturing University-Enterprise Joint Research Center of Shaanxi Province, Northwestern Polytechnical University, Xi’an 710072, China
| | - Haonan Zhang
- Department of Indurstry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
- Bio-Additive Manufacturing University-Enterprise Joint Research Center of Shaanxi Province, Northwestern Polytechnical University, Xi’an 710072, China
| | - Jiashu Cui
- Department of Indurstry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
- Bio-Additive Manufacturing University-Enterprise Joint Research Center of Shaanxi Province, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yanen Wang
- Department of Indurstry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
- Bio-Additive Manufacturing University-Enterprise Joint Research Center of Shaanxi Province, Northwestern Polytechnical University, Xi’an 710072, China
- Correspondence: (Y.W.); (Q.W.); Tel./Fax: +86-029-88493232 (Y.W.)
| | - Mingyang Li
- Department of Indurstry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
- Bio-Additive Manufacturing University-Enterprise Joint Research Center of Shaanxi Province, Northwestern Polytechnical University, Xi’an 710072, China
| | - Juan Zhang
- Department of Indurstry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
- Bio-Additive Manufacturing University-Enterprise Joint Research Center of Shaanxi Province, Northwestern Polytechnical University, Xi’an 710072, China
| | - Changgeng Wang
- Department of Indurstry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
- Bio-Additive Manufacturing University-Enterprise Joint Research Center of Shaanxi Province, Northwestern Polytechnical University, Xi’an 710072, China
| | - Zhisheng Liu
- Department of Indurstry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
- Bio-Additive Manufacturing University-Enterprise Joint Research Center of Shaanxi Province, Northwestern Polytechnical University, Xi’an 710072, China
| | - Qinghua Wei
- Department of Indurstry and Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
- Bio-Additive Manufacturing University-Enterprise Joint Research Center of Shaanxi Province, Northwestern Polytechnical University, Xi’an 710072, China
- Correspondence: (Y.W.); (Q.W.); Tel./Fax: +86-029-88493232 (Y.W.)
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Heidarian P, Kouzani AZ. Starch-g-Acrylic Acid/Magnetic Nanochitin Self-Healing Ferrogels as Flexible Soft Strain Sensors. Sensors (Basel) 2023; 23:s23031138. [PMID: 36772177 PMCID: PMC9920654 DOI: 10.3390/s23031138] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 06/01/2023]
Abstract
Mechanically robust ferrogels with high self-healing ability might change the design of soft materials used in strain sensing. Herein, a robust, stretchable, magneto-responsive, notch insensitive, ionic conductive nanochitin ferrogel was fabricated with both autonomous self-healing and needed resilience for strain sensing application without the need for additional irreversible static chemical crosslinks. For this purpose, ferric (III) chloride hexahydrate and ferrous (II) chloride as the iron source were initially co-precipitated to create magnetic nanochitin and the co-precipitation was confirmed by FTIR and microscopic images. After that, the ferrogels were fabricated by graft copolymerisation of acrylic acid-g-starch with a monomer/starch weight ratio of 1.5. Ammonium persulfate and magnetic nanochitin were employed as the initiator and crosslinking/nano-reinforcing agents, respectively. The ensuing magnetic nanochitin ferrogel provided not only the ability to measure strain in real-time under external magnetic actuation but also the ability to heal itself without any external stimulus. The ferrogel may also be used as a stylus for a touch-screen device. Based on our findings, our research has promising implications for the rational design of multifunctional hydrogels, which might be used in applications such as flexible and soft strain sensors, health monitoring, and soft robotics.
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Xu Y, Yang H, Zhu H, Jiang L, Yang H. Self-healing gelatin-based shape memory hydrogels via quadruple hydrogen bonding and coordination crosslinking for controlled delivery of 5-fluorouracil. J Biomater Sci Polym Ed 2020; 31:712-728. [PMID: 31955653 DOI: 10.1080/09205063.2020.1713711] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Gelatin-UPy based on gelatin with ureidopyrimidinone (UPy) side chains was prepared with varying content of UPy units. On increasing the UPy content, the glass transition temperature, crystallinity and swelling decreased. Gelatin-UPy demonstrated self-healing properties as the UPy units could reversibly form dimers. At the same time, the gelatin-UPy and gelatin-UPy hydrogels demonstrated thermal responsive shape memory behaviors. The introduction of coordination crosslinking by introducing Fe3+ in gelatin-UPy hydrogels not only enhanced the crosslinking degree of gelatin-UPy and decreased the swelling degree, but also significantly improved the self-healing properties. As a drug carrier, gelatin-UPy hydrogels could achieve controlled release of 5-fluorouracil (5-FU) drug on increasing the content of UPy and concentration of Fe3+. The gelatin-UPy based materials are expected to find significant use as suppository and tissue engineering materials to treat tumors.
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Affiliation(s)
- Yuande Xu
- Medical School, Guangxi University, Nanning, China
| | - Hong Yang
- Medical School, Guangxi University, Nanning, China
| | - Heyan Zhu
- Medical School, Guangxi University, Nanning, China
| | - Linbin Jiang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Hua Yang
- Medical School, Guangxi University, Nanning, China
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Yu Z, Liu J, Tan CSY, Scherman OA, Abell C. Supramolecular Nested Microbeads as Building Blocks for Macroscopic Self-Healing Scaffolds. Angew Chem Int Ed Engl 2018; 57:3079-3083. [PMID: 29377541 PMCID: PMC5915745 DOI: 10.1002/anie.201711522] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Indexed: 12/13/2022]
Abstract
The ability to construct self‐healing scaffolds that are injectable and capable of forming a designed morphology offers the possibility to engineer sustainable materials. Herein, we introduce supramolecular nested microbeads that can be used as building blocks to construct macroscopic self‐healing scaffolds. The core–shell microbeads remain in an “inert” state owing to the isolation of a pair of complementary polymers in a form that can be stored as an aqueous suspension. An annealing process after injection effectively induces the re‐construction of the microbead units, leading to supramolecular gelation in a preconfigured shape. The resulting macroscopic scaffold is dynamically stable, displaying self‐recovery in a self‐healing electronic conductor. This strategy of using the supramolecular assembled nested microbeads as building blocks represents an alternative to injectable hydrogel systems, and shows promise in the field of structural biomaterials and flexible electronics.
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Affiliation(s)
- Ziyi Yu
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Ji Liu
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Cindy Soo Yun Tan
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.,Faculty of Applied Sciences, Universiti Teknologi MARA, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Oren A Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Chris Abell
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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Wei Z, Lewis DM, Xu Y, Gerecht S. Dual Cross-Linked Biofunctional and Self-Healing Networks to Generate User-Defined Modular Gradient Hydrogel Constructs. Adv Healthc Mater 2017; 6. [PMID: 28544647 DOI: 10.1002/adhm.201700523] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Indexed: 12/22/2022]
Abstract
Gradient hydrogels have been developed to mimic the spatiotemporal differences of multiple gradient cues in tissues. Current approaches used to generate such hydrogels are restricted to a single gradient shape and distribution. Here, a hydrogel is designed that includes two chemical cross-linking networks, biofunctional, and self-healing networks, enabling the customizable formation of modular gradient hydrogel construct with various gradient distributions and flexible shapes. The biofunctional networks are formed via Michael addition between the acrylates of oxidized acrylated hyaluronic acid (OAHA) and the dithiol of matrix metalloproteinase (MMP)-sensitive cross-linker and RGD peptides. The self-healing networks are formed via dynamic Schiff base reaction between N-carboxyethyl chitosan (CEC) and OAHA, which drives the modular gradient units to self-heal into an integral modular gradient hydrogel. The CEC-OAHA-MMP hydrogel exhibits excellent flowability at 37 °C under shear stress, enabling its injection to generate gradient distributions and shapes. Furthermore, encapsulated sarcoma cells respond to the gradient cues of RGD peptides and MMP-sensitive cross-linkers in the hydrogel. With these superior properties, the dual cross-linked CEC-OAHA-MMP hydrogel holds significant potential for generating customizable gradient hydrogel constructs, to study and guide cellular responses to their microenvironment such as in tumor mimicking, tissue engineering, and stem cell differentiation and morphogenesis.
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Affiliation(s)
- Zhao Wei
- Department of Chemical and Biomolecular Engineering; The Institute for NanoBioTechnology; Physical-Sciences Oncology Center; Johns Hopkins University; Baltimore MD 21218 USA
| | - Daniel M. Lewis
- Department of Chemical and Biomolecular Engineering; The Institute for NanoBioTechnology; Physical-Sciences Oncology Center; Johns Hopkins University; Baltimore MD 21218 USA
| | - Yu Xu
- Department of Chemical and Biomolecular Engineering; The Institute for NanoBioTechnology; Physical-Sciences Oncology Center; Johns Hopkins University; Baltimore MD 21218 USA
| | - Sharon Gerecht
- Department of Chemical and Biomolecular Engineering; The Institute for NanoBioTechnology; Physical-Sciences Oncology Center; Johns Hopkins University; Baltimore MD 21218 USA
- Department of Materials Science and Engineering; Johns Hopkins University; Baltimore MD 21218 USA
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