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Shao H, Chen Z, Chang J, Yin X, Chen Y, Liu Y, Zhang K, Yang W. Gum Arabic microgel-based biomimetic waterborne anticorrosive coatings with reinforced water and abrasive resistances. Carbohydr Polym 2024; 342:122408. [PMID: 39048241 DOI: 10.1016/j.carbpol.2024.122408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 05/14/2024] [Accepted: 06/14/2024] [Indexed: 07/27/2024]
Abstract
The inadequate water resistance and mechanical properties of waterborne anticorrosive coatings is a serious problem that leads to coating failure. When the bark of acacia trees sustains damage, the liquid Gum Arabic (GA) that oozes from the trunk coagulates at the site of injury to safeguard it, which is called "gummosis" self-protection. Inspired by this, biomimetic GA microgel-based waterborne anticorrosive coatings are designed. Microgel exhibits a crosslinked polymer network structure with a combination of advantageous characteristics derived from both solids and liquids. By encapsulating the liquid corrosion inhibitors (MeBT) within the solid microgel matrix, the coating system is endowed with self-protective capabilities. The as-prepared GAMG-MeBT microgels are introduced into waterborne epoxy (WE) matrix and sprayed onto the surface of Q235 steel. Corrosion studies reveal the 3.0-wt% GAMG-MeBT/WE coating exhibits an impedance modulus value in the low-frequency region (Z0.01Hz) of 1.37 × 109 Ω cm2 after immersing in 3.5-wt% NaCl solution for 60 days, which is nearly two orders of magnitude higher than that of the pure WE coatings. Moreover, the coatings display improved water resistance, enhanced abrasive resistance, and active corrosion protection. This work provides a new approach to solving the failure of WE anticorrosive coatings.
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Affiliation(s)
- Hanlin Shao
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Zhihao Chen
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Jingli Chang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xiaoshuang Yin
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yun Chen
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ying Liu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Kegui Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of the People's Republic of China, Nanjing 210042, China.
| | - Wenzhong Yang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
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Heo E, Hwang W, Koo HB, Park S, Kim DN, Kim HY, Kim Y, Chang JB. Precise and selective macroscopic assembly of a dual lock-and-key structured hydrogel. MATERIALS HORIZONS 2024; 11:428-441. [PMID: 37955605 DOI: 10.1039/d3mh00995e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Macroscopic assembly offers immense potential for constructing complex systems due to the high design flexibility of the building blocks. In such assembly systems, hydrogels are promising candidates for building blocks due to their versatile chemical compositions and ease of property tuning. However, two major challenges must be addressed to facilitate application in a broader context: the precision of assembly and the quantity of orthogonally matching pairs must both be increased. Although previous studies have attempted to address these challenges, none have successfully dealt with both simultaneously. Here, we propose topology-based design criteria for the selective assembly of hydrogel building blocks. By introducing the dual lock-and-key structures, we demonstrate highly precise assembly exclusively between the matching pairs. We establish principles for selecting multiple orthogonally matching pairs and achieve selective assembly involving simple one-to-one matching and complex assemblies with multiple orthogonal matching points. Moreover, by harnessing hydrogel tunability and the abundance of matching pairs, we synthesize complementary single-stranded structures for programmable assembly and successfully assemble them in the correct order. Finally, we demonstrate a hydrogel-based self-assembled logic gate system, including a YES gate, an OR gate, and an AND gate. The output is generated only when the corresponding inputs are provided according to each logic.
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Affiliation(s)
- Eunseok Heo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
| | - Wooseop Hwang
- Department of Materials Science and Engineering, Kookmin University, Seoul 02707, Republic of Korea
| | - Hye Been Koo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
| | - Steve Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
| | - Do-Nyun Kim
- Department of Mechanical Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Ho-Young Kim
- Department of Mechanical Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - YongJoo Kim
- Department of Materials Science and Engineering, Kookmin University, Seoul 02707, Republic of Korea
| | - Jae-Byum Chang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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Mao S, Liu W, Xie Z, Zhang D, Zhou J, Xu Y, Fu B, Zheng SY, Zhang L, Yang J. In Situ Growth of Functional Hydrogel Coatings by a Reactive Polyurethane for Biomedical Devices. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 38036509 DOI: 10.1021/acsami.3c10683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Surface modification of thermoplastic polyurethane (TPU) could significantly enhance its suitability for biomedical devices and public health products. Nevertheless, customized modification of polyurethane surfaces with robust interfacial bonding and diverse functions via a simple method remains an enormous challenge. Herein, a novel thermoplastic polyurethane with a photoinitiated benzophenone unit (BPTPU) is designed and synthesized, which can directly grow functional hydrogel coating on polyurethane (PU) in situ by initiating polymerization of diverse monomers under ultraviolet irradiation, without the involvement of organic solvent. The resulting coating not only exhibits tissue-like softness, controllable thickness, lubrication, and robust adhesion strength but also provides customized functions (i.e., antifouling, stimuli-responsive, antibacterial, and fluorescence emission) to the original passive polymer substrates. Importantly, BPTPU can be blended with commercial TPU to produce the BPTPU-based tube by an extruder. Only a trace amount of BPTPU can endow the tube with good photoinitiated capacity. As a proof of concept, the hydrophilic hydrogel-coated BPTPU is shown to mitigate foreign body response in vivo and prevent thrombus formation in rat blood circulation without anticoagulants in vitro. This work offers a new strategy to guide the design of functional polyurethane, an elastomer-hydrogel composite, and holds great prospects for clinical translation.
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Affiliation(s)
- Shihua Mao
- Zhejiang Key Laboratory of Plastic Modification and Processing Technology, College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Wei Liu
- Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310000, P. R. China
| | - Zeming Xie
- Zhejiang Key Laboratory of Plastic Modification and Processing Technology, College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Dong Zhang
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Jiahui Zhou
- Zhejiang Key Laboratory of Plastic Modification and Processing Technology, College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yisheng Xu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Baiping Fu
- Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310000, P. R. China
| | - Si Yu Zheng
- Zhejiang Key Laboratory of Plastic Modification and Processing Technology, College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Ling Zhang
- Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310000, P. R. China
| | - Jintao Yang
- Zhejiang Key Laboratory of Plastic Modification and Processing Technology, College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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Gu P, Luo X, Zhou S, Wang D, Li Z, Chai Y, Zhang Y, Shi S, Russell TP. Stabilizing Liquids Using Interfacial Supramolecular Assemblies. Angew Chem Int Ed Engl 2023; 62:e202303789. [PMID: 37198522 DOI: 10.1002/anie.202303789] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/17/2023] [Accepted: 05/17/2023] [Indexed: 05/19/2023]
Abstract
Stabilizing liquids based on supramolecular assembly (non-covalent intermolecular interactions) has attracted significant interest, due to the increasing demand for soft, liquid-based devices where the shape of the liquid is far from the equilibrium spherical shape. The components comprising these interfacial assemblies must have sufficient binding energies to the interface to prevent their ejection from the interface when the assemblies are compressed. Here, we highlight recent advances in structuring liquids based on non-covalent intermolecular interactions. We describe some of the progress made that reveals structure-property relationships. In addition to treating advances, we discuss some of the limitations and provide a perspective on future directions to inspire further studies on structured liquids based on supramolecular assembly.
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Affiliation(s)
- Peiyang Gu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, P. R. China
| | - Xiaobo Luo
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, P. R. China
| | - Shiyuan Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, P. R. China
| | - Danfeng Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, P. R. China
| | - Zhongyu Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, P. R. China
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, P. R. China
| | - Yu Chai
- Department of Physics, City University of Hong Kong, Kowloon, P. R. China
| | - Yuzhe Zhang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, P. R. China
| | - Shaowei Shi
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Thomas P Russell
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
- Polymer Science and Engineering Department, University of Massachusetts, Amherst, MA 01003, USA
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba, Sendai, 980-8577, Japan
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Liu Y, Zhao R, Li S, Xue X, Zhang Q, Shi F, Cheng M. Robust Electrostatically Interactive Hydrogel Coatings for Macroscopic Supramolecular Assembly via Rapid Wet Adhesion. ACS APPLIED MATERIALS & INTERFACES 2023; 15:21640-21650. [PMID: 37074265 DOI: 10.1021/acsami.3c02176] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A macroscopic supramolecular assembly (MSA) refers to non-covalent interactions between building blocks over a micrometer scale, which provides insights into bio-/wet adhesion, self-healing, and so on and new fabrication strategies to heterogeneous structures and bio-scaffolds. The key to realize the MSA of rigid materials is pre-modifying a compliant coating known as a "flexible spacing coating" beneath the interactive moieties. However, available coatings are limited to polyelectrolyte multilayers with shortcomings of tedious fabrication, weak adhesion to substrates, susceptibility to external reagents, and so on. Here, we develop a facile method to induce a new "flexible spacing coating" of a poly(2-hydroxyethyl methacrylate) (PHEMA) hydrogel with electrostatic interactions to achieve MSA of diverse rigid materials (quartz, metal, rubber, and plastics). Selective self-assembly of positive-negative charged surfaces is observed by the naked eye under 3 min of shaking in water, providing strategies to rapid wet adhesion. The interfacial binding force between positive-negative interacted surfaces is 1018.1 ± 299.2 N/m2, which is over two magnitudes larger than that of control groups, that is, positive-positive (24.4 ± 10.0 N/m2) and negative-negative (67.5 ± 16.7 N/m2) interacted surfaces. In situ force measurements and control experiments of identically charged building blocks have strongly supported the improved binding strength and chemical selectivity between interactive building blocks. The coating is advantageous with a simple fabrication, strong adhesion to materials, robust solvent tolerance to assembly solutions, and feasibility of photo-patterning. We envision that the above strategy would broaden the material choices of flexible spacing coatings for efficient MSA and new methods for rapid interfacial adhesion.
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Affiliation(s)
- Yijing Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Rongzhuang Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shaohua Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xianchong Xue
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qian Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Feng Shi
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Mengjiao Cheng
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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