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Riul A, de Barros A, Gaál G, Braunger ML, Martinez Jimenez MJ, Avila-Avendano C, Rodrigues V, de Andrade MJ, Quevedo-Lopez M, Alvarez F, Baughman RH. Self-Healing E-tongue. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55073-55081. [PMID: 37967325 DOI: 10.1021/acsami.3c11590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Self-healing materials inspire the next generation of multifunctional wearables and Internet of Things appliances. They expand the realm of thin film fabrication, enabling seamless conformational coverage irrespective of the shape complexity and surface geometry for electronic skins, smart textiles, soft robotics, and energy storage devices. Within this context, the layer-by-layer (LbL) technique is versatile for homogeneously dispersing materials onto various matrices. Moreover, it provides molecular level thickness control and coverage on practically any surface, with poly(ethylenimine) (PEI) and poly(acrylic acid) (PAA) being the most used materials primarily employed in self-healing LbL structures operating at room temperature. However, achieving thin film composites displaying controlled conductivity and healing ability is still challenging under ambient conditions. Here, PEI and PAA are mixed with conductive fillers (gold nanorods, poly(3,4-ethylene dioxythiophene): polystyrenesulfonate (PEDOT:PSS), reduced graphene oxides, and multiwalled carbon nanotubes) in distinct LbL film architectures. Electrical (AC and DC), optical (Raman spectroscopy), and mechanical (nanoindentation) measurements are used for characterizing composite structures and properties. A delicate balance among electrical, mechanical, and structural characteristics must be accomplished for a controlled design of conductive self-healing composites. As a proof-of-concept, four LbL composites were chosen as sensing units in the first reported self-healing e-tongue. The sensor can easily distinguish basic tastes at low molar concentrations and differentiate trace levels of glucose in artificial sweat. The formed nanostructures enable smart coverages that have unique features for solving current technological challenges.
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Affiliation(s)
- Antonio Riul
- Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin, Campinas, SP 13083-859, Brazil
- Alan MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Anerise de Barros
- Universidade Estadual de Campinas, Instituto de Química, Campinas, SP 13083-970, Brazil
- Materials Science and Engineering Department, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Gabriel Gaál
- Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin, Campinas, SP 13083-859, Brazil
| | - Maria L Braunger
- Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin, Campinas, SP 13083-859, Brazil
| | - Mawin J Martinez Jimenez
- Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin, Campinas, SP 13083-859, Brazil
| | - Carlos Avila-Avendano
- Materials Science and Engineering Department, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Varlei Rodrigues
- Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin, Campinas, SP 13083-859, Brazil
| | - Mônica Jung de Andrade
- Alan MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Manuel Quevedo-Lopez
- Materials Science and Engineering Department, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Fernando Alvarez
- Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin, Campinas, SP 13083-859, Brazil
| | - Ray H Baughman
- Alan MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, Texas 75080, United States
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2
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Dong C, Yue X, Zhang Y, Wang Y, Ren ZH, Guan ZH. Synthesis of Self-healing and Light-, Thermal-, and Humidity-induced Deformative Polyurethane Actuator. Macromol Rapid Commun 2023; 44:e2300281. [PMID: 37543181 DOI: 10.1002/marc.202300281] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/19/2023] [Indexed: 08/07/2023]
Abstract
Intelligent actuating materials have drawn enormous attention because of their potential applications in soft robots, smart sensors, bionics, etc. Aiming to integrate light, thermal, and humidity stimuli deformations and self-healing function into a single polymer, a smart actuating polyurethane material CPPU-50 is designed and successfully synthesized through co-polymerization of azobenzene-containing Azo-C12 , polyethylene glycol 200 (PEG200), and 4,4'-diphenylmethane diisocyanate (MDI) at a ratio of 1:1:2. The obtained polyurethane CPPU-50 exhibits good photoinduced bending, thermal responsive shape memory effect, humidity triggered deflections and self-healing properties. Furthermore, an actuator combining light and thermal stimuli is created and the self-healing CPPU-50 film can withstand the object of 1800 times without tearing. This work can pave a way for further development of long-lived multi-stimuli-responsive actuating devices and intelligent materials.
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Affiliation(s)
- Chen Dong
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Shaanxi Key Laboratory for Carbon Neutral Technology, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Xiaolei Yue
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Shaanxi Key Laboratory for Carbon Neutral Technology, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Yaodu Zhang
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Shaanxi Key Laboratory for Carbon Neutral Technology, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Yucheng Wang
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Shaanxi Key Laboratory for Carbon Neutral Technology, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Shaanxi Key Laboratory for Carbon Neutral Technology, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Nature Molecule of Ministry of Education, Shaanxi Key Laboratory for Carbon Neutral Technology, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
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3
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Kashem MNH, Liu X, Ding Z, Li W. Spin‐spray‐assisted layer‐by‐layer assembly of thick polymer films with self‐healing, UV‐protection, and anti‐fog properties. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Xu Liu
- Department of Chemical Engineering Texas Tech University Lubbock Texas USA
| | - Zhenya Ding
- Department of Chemical Engineering Texas Tech University Lubbock Texas USA
| | - Wei Li
- Department of Chemical Engineering Texas Tech University Lubbock Texas USA
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4
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Chen Y, Shi C, Zhang Z, Xu Q, Hu H, Wei Y. Preparation and properties of self-healing polyurethane without external stimulation. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04075-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Liu K, Peng Q, Li Z, Cheng J, Lao L, Li X, Zhang Z, Lu S, Li Y. Electrospinning preparation of perylene-bisimide-functionalized graphene/polylactic acid shape-memory films with excellent mechanical and thermal properties. NEW J CHEM 2021. [DOI: 10.1039/d0nj04737f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Electrospinning preparation of perylene-bisimide-functionalized graphene/polylactic acid composite films with shape-memory properties.
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Affiliation(s)
- Kuo Liu
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Qingyuan Peng
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Ziwei Li
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Jingzhen Cheng
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Li Lao
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Xing Li
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Zuocai Zhang
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Shaorong Lu
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Yuqi Li
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
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6
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Programing polyurethane with rational surface-modified graphene platelets for shape memory actuators and dielectric elastomer generators. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109745] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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Liu J, Min B, Wang Z, Teng J, Sun X, Li S, Li S. Influence of functionalized core-shell structure on the thermodynamic and shape memory properties of nanocomposites. NANOSCALE 2020; 12:3205-3219. [PMID: 31967167 DOI: 10.1039/c9nr09029k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Filler/matrix interfacial cohesion exerts a straightforward effect on stress transfer at the interface in composite structures, thereby significantly affecting their integrated mechanical properties. Thus, controlling the interface interaction of polymers/fillers is essential for the fabrication of high-performance polymer composites. In this work, a functionalized core-shell structured hybrid was prepared via charge attraction and applied as a novel filler in the trans-1,4-polyisoprene matrix to improve the interfacial interaction of the filler/matrix. A series of tests on the micro- and macroscale was performed to investigate its thermal, mechanical and shape memory performances. The obtained results show that while guaranteeing the shape memory properties of the composites, the utilization of the core-shell structured hybrid not only improved the heat resistant performance, but also contributed to better mechanical properties. This provides solid evidence for the potential of the innovative method presented herein, which may shed some light on the improvement of the interface design strategy and the development of composites with high performances.
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Affiliation(s)
- Jingbiao Liu
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, P. R. China. and School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore.
| | - Benzhi Min
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, P. R. China.
| | - Zhenqing Wang
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, P. R. China.
| | - Jianxin Teng
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, P. R. China.
| | - Xiaoyu Sun
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, P. R. China.
| | - Shaofan Li
- Department of Civil and Environmental Engineering, University of California, Berkeley, CA 94720, USA.
| | - Shuzhou Li
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore.
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8
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Zhang L, Pan J, Liu Y, Xu Y, Zhang A. NIR-UV Responsive Actuator with Graphene Oxide/Microchannel-Induced Liquid Crystal Bilayer Structure for Biomimetic Devices. ACS APPLIED MATERIALS & INTERFACES 2020; 12:6727-6735. [PMID: 31917536 DOI: 10.1021/acsami.9b20672] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Soft bilayer actuators with a simple fabrication process, diverse molecular alignment, and multistimulus response are displayed in this work. The microchannel method proposed by us can exquisitely program the molecular arrangement. Based on the mismatch in coefficient of thermal expansion (CTE) between graphene oxide (GO) and the azobenzene doped liquid crystal network (ALCN), bilayer actuators can exhibit reversible, rapid, and complex deformations under the control of heat, UV and NIR light. Furthermore, in addition to microchannels, various deformation behaviors of bilayer actuators can also be programmed by directionally arranging GO layers. Smart bilayer membranes can be customized into a range of delicate biomimetic devices, such as bionic butterfly, bionic leaf, and foot robot, promising their numerous applications in biomimetic and intelligent soft robotics fields.
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Affiliation(s)
- Lanshan Zhang
- State Key Laboratory of Polymer Materials Engineering of China , Polymer Research Institute of Sichuan University , Chengdu 610065 , China
| | - Jingkai Pan
- State Key Laboratory of Polymer Materials Engineering of China , Polymer Research Institute of Sichuan University , Chengdu 610065 , China
| | - Yinghao Liu
- State Key Laboratory of Polymer Materials Engineering of China , Polymer Research Institute of Sichuan University , Chengdu 610065 , China
| | - Yu Xu
- Xi'an Aerospace Composites Research Institute , Xi'an 710025 , China
| | - Aimin Zhang
- State Key Laboratory of Polymer Materials Engineering of China , Polymer Research Institute of Sichuan University , Chengdu 610065 , China
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9
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Deng Y, Sun J, Ni X, Xiong D. Multilayers of poly(ethyleneimine)/poly(acrylic acid) coatings on Ti6Al4V acting as lubricated polymer-bearing interface. J Biomed Mater Res B Appl Biomater 2020; 108:2141-2152. [PMID: 31904181 DOI: 10.1002/jbm.b.34553] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 12/09/2019] [Accepted: 12/20/2019] [Indexed: 11/11/2022]
Abstract
To achieve an efficient lubricated interface on titanium alloy (Ti6Al4V) alloy, polyelectrolyte multilayer (PEM) polymer coatings, based on poly(ethyleneimine)/poly(acrylic acid) (PEI/PAA), were fabricated on the surface of Ti6Al4V alloy substrates using the layer-by-layer (LbL) assembly technique. Their composition and morphology were confirmed by Fourier-transform infrared/attenuated total reflectance (FTIR/ATR) spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy. The tribological properties were investigated by a ball-on-disk rotating tribometer using deionized water, saline, and calf serum. The results exhibit that (PEI/PAA)*n coatings have the internal cross-linked network and porous structure on the surface. The surface of PEI/PAA coatings-modified Ti6Al4V shows the sufficient wettability. The polymer-bearing interface of (PEI/PAA)*10 exhibits a low friction coefficient, 0.059, for 2 hr, and represents an 88% decline compared with bare Ti6Al4V. Moreover, the wear track on the polymer-bearing interface is superlow. There is no obvious wear volume, which indicates effective wear resistance. The hydrated layer, the cross-linked network structure, and the porous structure of PEM coatings are the main factors for efficient tribological properties. The multilayer PEI/PAA coating shows the potential uses of developing the lubricated-bearing interface on Ti6Al4V alloy.
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Affiliation(s)
- Yaling Deng
- College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing, China
| | - Jianjun Sun
- College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing, China
| | - Xingya Ni
- College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing, China
| | - Dangsheng Xiong
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
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10
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Zhang Y, Zhu G, Dong B, Tang J, Li J, Yang G, Hong S, Xing F. One-Step Generation of Multistimuli-Responsive Microcapsules via the Multilevel Interfacial Assembly of Polymeric Complexes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:43741-43750. [PMID: 31652048 DOI: 10.1021/acsami.9b15863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Efforts to develop microcapsules that respond to different stimuli derive from the incorporation of multiple dynamic assemblies of diverse functional species to the capsule shells. However, this usually involves complicated preparation processes that ultimately hinder the integration of multiple functionalities in a single material. This is addressed in the present work by proposing a multilevel interfacial assembly approach involving polymeric complexes that facilitate the fabrication of multistimuli-responsive microcapsules based on one-step Pickering emulsification using oppositely charged polycation-graphene oxide (GO) and polyanion-surfactant complexes prepared in immiscible liquid solutions. The complexes initially stabilize the emulsion based on electrostatic interactions. Subsequently, the highly dynamic bonding between the polymeric complexes facilitates the rearrangement of components at the oil/water interface to form a continuous interfacial shell membrane. The integrity of the microcapsule shells is sensitive to near-infrared irradiation owing to the GO component and is also sensitive to NaCl content because the assemblies between nanoparticles and polyelectrolytes are bonded through electrostatic interactions. The generality of the proposed strategy is demonstrated by the interfacial assembly of polycation-Fe3O4 complexes and polyanion-surfactant complexes. The resulting microcapsules exhibit salt responsiveness, pH responsiveness, and the ability to be positioned controllably by the application of an external magnetic field. This work provides a promising approach for the preparation of multistimuli-responsive microcapsules.
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11
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Hu W, Cui X, Xiang L, Gong L, Zhang L, Gao M, Wang W, Zhang J, Liu F, Yan B, Zeng H. Tannic acid modified MoS 2 nanosheet membranes with superior water flux and ion/dye rejection. J Colloid Interface Sci 2019; 560:177-185. [PMID: 31670015 DOI: 10.1016/j.jcis.2019.10.068] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 02/08/2023]
Abstract
Energy-efficient membranes are urgently needed for water desalination and separation due to ever-increasing demand for fresh water. However, it is extremely challenging to increase membrane water flux and simultaneously achieve high rejection rates of cations or organic dyes. Herein, we report a tannic acid (TA) assisted exfoliation method to fabricate TA-modified MoS2 (TAMoS2) nanosheets with high production yield (90 ± 5%). The TAMoS2 nanosheets membranes show excellent non-swelling stability in water. It is found that a hybrid membrane with 1 wt% of TAMoS2 in MoS2 nanosheets demonstrates overall better performance than pure MoS2 and TAMoS2 membrane. Such a hybrid membrane with a thickness of 5 µm shows fast water flux at around 32 L m-2 h-1 (LMH) and >97% rejection of various cations under static diffusion mode. Under vacuum-driven filtration condition, the as-prepared hybrid membrane demonstrates ultrafast water flux of 15,000 ± 100 L/(m2 h bar) and 99.87 ± 0.1% rejection of multiple model organic dyes. To the best of our knowledge, the above performances are superior to those of all MoS2-based membranes reported previously in terms of water flux and ion/dye rejection. This work represents a leap forward towards the practical applications of 2D TAMoS2 membranes in various engineering and environmental areas.
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Affiliation(s)
- Wenjihao Hu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Xinwei Cui
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada; College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.
| | - Li Xiang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Lu Gong
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Ling Zhang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Mingwen Gao
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Wenda Wang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Jiawen Zhang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Fenglin Liu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Bin Yan
- College of Light Industry, Textile & Food Engineering, Sichuan University, Chengdu 610065, China.
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada.
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12
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Ren D, Chen Y, Yang S, Li H, Rehman HU, Liu H. Fast and Efficient Electric‐Triggered Self‐Healing Shape Memory of CNTs@rGO Enhanced PCLPLA Copolymer. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900281] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Du Ren
- State Key Laboratory of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Yujie Chen
- State Key Laboratory of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Senlin Yang
- Dongfang Electric Wind Power Co. Ltd. Deyang 618000 P. R. China
| | - Hua Li
- State Key Laboratory of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
- Collaborative Innovation Centre for Advanced Ship and Deep‐Sea ExplorationShanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Hafeez Ur Rehman
- State Key Laboratory of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Hezhou Liu
- State Key Laboratory of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
- Collaborative Innovation Centre for Advanced Ship and Deep‐Sea ExplorationShanghai Jiao Tong University Shanghai 200240 P. R. China
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Panahi-Sarmad M, Goodarzi V, Amirkiai A, Noroozi M, Abrisham M, Dehghan P, Shakeri Y, Karimpour-Motlagh N, Poudineh Hajipoor F, Ali Khonakdar H, Asefnejad A. Programing polyurethane with systematic presence of graphene-oxide (GO) and reduced graphene-oxide (rGO) platelets for adjusting of heat-actuated shape memory properties. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.06.034] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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14
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Yu Z, Wang Z, Li H, Teng J, Xu L. Shape Memory Epoxy Polymer (SMEP) Composite Mechanical Properties Enhanced by Introducing Graphene Oxide (GO) into the Matrix. MATERIALS 2019; 12:ma12071107. [PMID: 30987103 PMCID: PMC6480211 DOI: 10.3390/ma12071107] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 03/23/2019] [Accepted: 03/26/2019] [Indexed: 11/30/2022]
Abstract
Shape memory epoxy polymer (SMEP) composite specimens with different graphene oxide (GO) contents were manufactured to study the effects of GO mass fractions on epoxy polymer composites. While ensuring the shape memory effect of SMEP, the addition of GO also remarkably strengthened the mechanical performance of the polymers. Analyses of the epoxy polymer composites’ thermal, mechanical, and shape memory performance were conducted through carrying out dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), and static tensile, three-point bending, impact, and shape memory tests. Moreover, the tensile fracture, bending fracture, and impact fracture interfaces of epoxy resin composites were examined with scanning electron microscopy. The final test results indicated that when the GO content was 0.8 wt %, SMEP composites had good shape memory performance and optimum thermal and mechanical performance.
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Affiliation(s)
- Zhengwei Yu
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Zhenqing Wang
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Hao Li
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Jianxin Teng
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Lidan Xu
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China.
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15
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Cohn D, Sloutski A, Elyashiv A, Varma VB, Ramanujan R. In Situ Generated Medical Devices. Adv Healthc Mater 2019; 8:e1801066. [PMID: 30828989 DOI: 10.1002/adhm.201801066] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/25/2018] [Indexed: 12/19/2022]
Abstract
Medical devices play a major role in all areas of modern medicine, largely contributing to the success of clinical procedures and to the health of patients worldwide. They span from simple commodity products such as gauzes and catheters, to highly advanced implants, e.g., heart valves and vascular grafts. In situ generated devices are an important family of devices that are formed at their site of clinical function that have distinct advantages. Among them, since they are formed within the body, they only require minimally invasive procedures, avoiding the pain and risks associated with open surgery. These devices also display enhanced conformability to local tissues and can reach sites that otherwise are inaccessible. This review aims at shedding light on the unique features of in situ generated devices and to underscore leading trends in the field, as they are reflected by key developments recently in the field over the last several years. Since the uniqueness of these devices stems from their in situ generation, the way they are formed is crucial. It is because of this fact that in this review, the medical devices are classified depending on whether their in situ generation entails chemical or physical phenomena.
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Affiliation(s)
- Daniel Cohn
- Casali Center of Applied ChemistryInstitute of ChemistryHebrew University of Jerusalem Jerusalem 91904 Israel
| | - Aaron Sloutski
- Casali Center of Applied ChemistryInstitute of ChemistryHebrew University of Jerusalem Jerusalem 91904 Israel
| | - Ariel Elyashiv
- Casali Center of Applied ChemistryInstitute of ChemistryHebrew University of Jerusalem Jerusalem 91904 Israel
| | - Vijaykumar B. Varma
- School of Materials Science and EngineeringNanyang Technological University 639798 Singapore Singapore
| | - Raju Ramanujan
- School of Materials Science and EngineeringNanyang Technological University 639798 Singapore Singapore
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16
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Li T, Li Y, Wang X, Li X, Sun J. Thermally and Near-Infrared Light-Induced Shape Memory Polymers Capable of Healing Mechanical Damage and Fatigued Shape Memory Function. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9470-9477. [PMID: 30735026 DOI: 10.1021/acsami.8b21970] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The fabrication of shape memory polymers that are mechanically robust and capable of being induced by near-infrared (NIR) light and healing mechanical damage and the fatigued shape memory function remains a challenge. In this study, thermally and NIR-light-induced shape memory polymers with self-healing ability and satisfactory mechanical robustness are fabricated by dispersing poly(acrylic acid) (PAA)-grafted graphene oxide (GO) (PAA-GO) into poly(vinyl alcohol) (PVA) matrix. The PVA/PAA-GO3% films with a PAA-GO content of 3.0 wt % have a fracture stress of ∼70.4 MPa and a Young's modulus of ∼2.8 GPa. The PVA/PAA-GO3% films exhibit an excellent shape memory performance because PVA and PAA-GO form a stable network through hydrogen-bonding interaction between them. Meanwhile, the PVA/PAA-GO3% films are capable of recovering from temporary shape to permanent shape under NIR light irradiation because of excellent photothermal conversion property of the GO nanosheets. More importantly, benefiting from the reversibility of hydrogen-bonding interactions between PVA and PAA-GO nanosheets, the shape memory PVA/PAA-GO3% films are capable of healing physical damage and the fatigued shape memory function with the assistance of water, which greatly enhance their reliability as shape memory materials and prolong their service life.
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Affiliation(s)
- Tianqi Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Yang Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Xiaohan Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Xiang Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Junqi Sun
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
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pH-Responsive zeolitic imidazole framework nanoparticles with high active inhibitor content for self-healing anticorrosion coatings. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.06.035] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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