1
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Zhang Y, Wei H, Hua B, Hu C, Zhang W. Preparation and application of the thermo-/pH-/ ion-sensitive semi-IPN hydrogel based on chitosan. Int J Biol Macromol 2024; 258:128968. [PMID: 38154725 DOI: 10.1016/j.ijbiomac.2023.128968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 11/26/2023] [Accepted: 12/12/2023] [Indexed: 12/30/2023]
Abstract
Chitosan based hydrogels with multiple stimulus responses have broad application prospects in many fields. Considering the advantages of semi interpenetrating network (IPN) technology and the special temperature and ion responsiveness of polymers containing zwitterionic groups, a semi-IPN hydrogel was prepared through in situ free radical polymerization of N,N-dimethyl acrylamide and [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl) ammonium hydroxide with polyethylene glycol dimethacrylate as a crosslinker and carboxymethyl chitosan as filler. The gel mass fraction and swelling ratio were measured, and the preparation conditions were optimized. The result indicated that the hydrogel possessed a unique thermo-/pH-/ ion-sensitive behavior. The swelling ratio increased with the increase of temperature and ion concentration, and showed a decreasing trend with the increase in pH. In addition, the hydrogel was stable when the stimuli changed. Adsorption behavior of the hydrogel to Eosin Y (EY) was systematically investigated. The adsorption process can be described well by the pseudo-second-order kinetic model and Langmuir isotherm model, indicating that it was a chemical adsorption. The experiments indicated that the hydrogel exhibited good antifouling and reusability features. Therefore, the semi-IPN hydrogel with antifouling properties and thermo-/pH-/ion-sensitivity can be easily manufactured is expected to find applications in water treatment fields.
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Affiliation(s)
- Yaqi Zhang
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, PR China
| | - Hongliang Wei
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Bingya Hua
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, PR China
| | - Chunwang Hu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, PR China
| | - Wenjing Zhang
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, PR China
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2
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Li K, Yu L, Ma L, Xia J, Peng J, Hu P, Liu G, Ye J. Surface modification of commercial intraocular lens by zwitterionic and antibiotic-loaded coating for preventing postoperative endophthalmitis. Colloids Surf B Biointerfaces 2023; 222:113093. [PMID: 36542949 DOI: 10.1016/j.colsurfb.2022.113093] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 12/01/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
After cataract surgery, to prevent possible postoperative endophthalmitis (POE) caused by attached pathogenic bacteria onto the surface of implanted intraocular lens (IOL), various antibiotic-loaded IOLs have been proposed and widely studied to inhibit bacterial infection. However, most of these developed antibiotic-loaded IOLs still suffer from shortcomings such as insufficient drug loading, short release time, poor biocompatibility, and risk of secondary infection. Herein, we propose a zwitterionic and high-drug loading coating for surface modification of commercial hydrophobic IOL with both antifouling and antibacterial properties to effectively prevent POE. In this strategy, zwitterionic poly(carboxylbetaine-co-dopamine methacrylamide) copolymers (pCBDA) and dopamine (DA) were first robustly co-deposited onto IOL surface via facile mussel-inspired chemistry, resulting in a hydrophilic coating (defined as PCB) without sacrificing the high light transmittance of the native IOL. Subsequently, amikacin (AMK), an amine-rich antibiotic was reversibly conjugated onto the coating through the acid-sensitive Schiff base bonds formed by the reaction between amino and catechol groups, with high-drug payload over ∼35.5 μg per IOL and 30 days of sustained drug release under weak acid environment. Benefiting from the antifouling property of zwitterionic pCBDA copolymers, the intraocularly implanted PCB/AMK-coated IOL could effectively resist the adhesion and proliferation of residual LECs to inhibit the development of posterior capsule opacification (PCO) without affecting the normal ocular tissues, demonstrating excellent in vivo biocompatibility. Moreover, the synergy of zwitterionic pCBDA and conjugated AMK with acidic-dependent release behavior endowed this PCB/AMK-coated IOL strong antibacterial activity against both in vitro biofilm formation and in vivo postoperative Staphylococcus aureus infection, suggesting its promising application in preventing POE.
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Affiliation(s)
- Kaijun Li
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Ling Yu
- Department of Ophthalmology, Daping Hospital, Army Medical Center, Army Medical University, Chongqing, 400042, China
| | - Li Ma
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Jiali Xia
- Department of Ophthalmology, Daping Hospital, Army Medical Center, Army Medical University, Chongqing, 400042, China
| | - Jinyu Peng
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Pan Hu
- Department of Ophthalmology, Daping Hospital, Army Medical Center, Army Medical University, Chongqing, 400042, China
| | - Gongyan Liu
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China.
| | - Jian Ye
- Department of Ophthalmology, Daping Hospital, Army Medical Center, Army Medical University, Chongqing, 400042, China.
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3
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Shuaishuai W, Tongtong Z, Dapeng W, Mingran Z, Xukai W, Yue Y, Hengliang D, Guangzhi W, Minglei Z. Implantable biomedical materials for treatment of bone infection. Front Bioeng Biotechnol 2023; 11:1081446. [PMID: 36793442 PMCID: PMC9923113 DOI: 10.3389/fbioe.2023.1081446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 01/18/2023] [Indexed: 01/31/2023] Open
Abstract
The treatment of bone infections has always been difficult. The emergence of drug-resistant bacteria has led to a steady decline in the effectiveness of antibiotics. It is also especially important to fight bacterial infections while repairing bone defects and cleaning up dead bacteria to prevent biofilm formation. The development of biomedical materials has provided us with a research direction to address this issue. We aimed to review the current literature, and have summarized multifunctional antimicrobial materials that have long-lasting antimicrobial capabilities that promote angiogenesis, bone production, or "killing and releasing." This review provides a comprehensive summary of the use of biomedical materials in the treatment of bone infections and a reference thereof, as well as encouragement to perform further research in this field.
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Affiliation(s)
- Wang Shuaishuai
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Zhu Tongtong
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Wang Dapeng
- Department of Orthopedics, Siping Central Hospital, Siping, China
| | - Zhang Mingran
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Wang Xukai
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yu Yue
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Dong Hengliang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Wu Guangzhi
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China,*Correspondence: Wu Guangzhi, ; Zhang Minglei,
| | - Zhang Minglei
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China,*Correspondence: Wu Guangzhi, ; Zhang Minglei,
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4
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Li Q, Wen C, Yang J, Zhou X, Zhu Y, Zheng J, Cheng G, Bai J, Xu T, Ji J, Jiang S, Zhang L, Zhang P. Zwitterionic Biomaterials. Chem Rev 2022; 122:17073-17154. [PMID: 36201481 DOI: 10.1021/acs.chemrev.2c00344] [Citation(s) in RCA: 107] [Impact Index Per Article: 53.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The term "zwitterionic polymers" refers to polymers that bear a pair of oppositely charged groups in their repeating units. When these oppositely charged groups are equally distributed at the molecular level, the molecules exhibit an overall neutral charge with a strong hydration effect via ionic solvation. The strong hydration effect constitutes the foundation of a series of exceptional properties of zwitterionic materials, including resistance to protein adsorption, lubrication at interfaces, promotion of protein stabilities, antifreezing in solutions, etc. As a result, zwitterionic materials have drawn great attention in biomedical and engineering applications in recent years. In this review, we give a comprehensive and panoramic overview of zwitterionic materials, covering the fundamentals of hydration and nonfouling behaviors, different types of zwitterionic surfaces and polymers, and their biomedical applications.
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Affiliation(s)
- Qingsi Li
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Chiyu Wen
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Jing Yang
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Xianchi Zhou
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yingnan Zhu
- Institute of Drug Discovery and Development, School of Pharmaceutical Sciences, Center for Drug Safety Evaluation and Research, Zhengzhou University, Zhengzhou 450001, China
| | - Jie Zheng
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Gang Cheng
- Department of Chemical Engineering, The University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Jie Bai
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
| | - Tong Xu
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Shaoyi Jiang
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Lei Zhang
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Peng Zhang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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5
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Zhou L, Zhao C, Yang W. Durable and covalently attached antibacterial coating based on post-crosslinked maleic anhydride copolymer with long-lasting performance. Colloids Surf B Biointerfaces 2022. [DOI: 10.1016/j.colsurfb.2022.112710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Hong Y, Kim B, Jeong J, Bisht H, Park S, Hong D. Antifouling Surface Coating on Various Substrates by Inducing Tyrosinase-Mediated Oxidation of a Tyrosine-Conjugated Sulfobetaine Derivative. Biomacromolecules 2022; 23:4349-4356. [PMID: 36049071 DOI: 10.1021/acs.biomac.2c00804] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Inspired by the melanogenesis occurring in nature, we report tyrosinase-mediated antifouling surface coating by synthesizing a tyrosine-conjugated sulfobetaine derivative (Tyr-SB). Synthetic Tyr-SB contains zwitterionic sulfobetaine and tyrosine, whose phenolic amine group acts as a dormant coating precursor. In contrast to catecholamine derivatives, tyrosine derivatives are stable against auto-oxidation and are enzymatically oxidized only in the presence of tyrosinase to initiate melanin-like oxidation. When the surface of interest was applied during the course of Tyr-SB oxidation, a superhydrophilic poly(Tyr-SB) film was coated on the surfaces, thereby showing antifouling performance against proteins or adherent cells. Because the oxidation of Tyr-SB occurred under mild aqueous conditions (pH 6-7) without the use of any chemical oxidants, such as sodium periodate or ammonium persulfate, we anticipate that the coating method described herein will serve as a biocompatible tool in the field of biosensors, cell surface engineering, and medical devices, whose interfaces differ in chemistry.
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Affiliation(s)
- Yubin Hong
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Byeol Kim
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Jaehoon Jeong
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Himani Bisht
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Suho Park
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Daewha Hong
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
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7
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Liu F, Wang D, Wang J, Ma L, Yu C, Wei H. Construction of Enzyme-Responsive Micelles Based on Theranostic Zwitterionic Conjugated Bottlebrush Copolymers with Brush-on-Brush Architecture for Cell Imaging and Anticancer Drug Delivery. Molecules 2022; 27:molecules27093016. [PMID: 35566368 PMCID: PMC9101325 DOI: 10.3390/molecules27093016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/29/2022] [Accepted: 05/03/2022] [Indexed: 11/16/2022] Open
Abstract
Bottlebrush copolymers with different chemical structures and compositions as well as diverse architectures represent an important kind of material for various applications, such as biomedical devices. To our knowledge, zwitterionic conjugated bottlebrush copolymers integrating fluorescence imaging and tumor microenvironment-specific responsiveness for efficient intracellular drug release have been rarely reported, likely because of the lack of an efficient synthetic approach. For this purpose, in this study, we reported the successful preparation of well-defined theranostic zwitterionic bottlebrush copolymers with unique brush-on-brush architecture. Specifically, the bottlebrush copolymers were composed of a fluorescent backbone of polyfluorene derivate (PFONPN) possessing the fluorescence resonance energy transfer with doxorubicin (DOX), primary brushes of poly(2-hydroxyethyl methacrylate) (PHEMA), and secondary graft brushes of an enzyme-degradable polytyrosine (PTyr) block as well as a zwitterionic poly(oligo (ethylene glycol) monomethyl ether methacrylate-co-sulfobetaine methacrylate) (P(OEGMA-co-SBMA)) chain with super hydrophilicity and highly antifouling ability via elegant integration of Suzuki coupling, NCA ROP and ATRP techniques. Notably, the resulting bottlebrush copolymer, PFONPN9-g-(PHEMA15-g-(PTyr16-b-P(OEGMA6-co-SBMA6)2)) (P2) with a lower MW ratio of the hydrophobic side chains of PTyr and hydrophilic side chains of P(OEGMA-co-SBMA) could self-assemble into stabilized unimolecular micelles in an aqueous phase. The resulting unimolecular micelles showed a fluorescence quantum yield of 3.9% that is mainly affected by the pendant phenol groups of PTyr side chains and a drug-loading content (DLC) of approximately 15.4% and entrapment efficiency (EE) of 90.6% for DOX, higher than the other micelle analogs, because of the efficient supramolecular interactions of π–π stacking between the PTyr blocks and drug molecules, as well as the moderate hydrophilic chain length. The fluorescence of the PFONPN backbone enables fluorescence resonance energy transfer (FRET) with DOX and visualization of intracellular trafficking of the theranostic micelles. Most importantly, the drug-loaded micelles showed accelerated drug release in the presence of proteinase K because of the enzyme-triggered degradation of PTyr blocks and subsequent deshielding of P(OEGMA-co-SBMA) corona for micelle destruction. Taken together, we developed an efficient approach for the synthesis of enzyme-responsive theranostic zwitterionic conjugated bottlebrush copolymers with a brush-on-brush architecture, and the resulting theranostic micelles with high DLC and tumor microenvironment-specific responsiveness represent a novel nanoplatform for simultaneous cell image and drug delivery.
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Affiliation(s)
- Fangjun Liu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China; (F.L.); (L.M.)
| | - Dun Wang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study & Department of Pharmacy and Pharmacology, University of South China, Hengyang 421001, China; (D.W.); (J.W.)
| | - Jiaqi Wang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study & Department of Pharmacy and Pharmacology, University of South China, Hengyang 421001, China; (D.W.); (J.W.)
| | - Liwei Ma
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China; (F.L.); (L.M.)
| | - Cuiyun Yu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study & Department of Pharmacy and Pharmacology, University of South China, Hengyang 421001, China; (D.W.); (J.W.)
- Correspondence: (C.Y.); (H.W.)
| | - Hua Wei
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China; (F.L.); (L.M.)
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study & Department of Pharmacy and Pharmacology, University of South China, Hengyang 421001, China; (D.W.); (J.W.)
- Correspondence: (C.Y.); (H.W.)
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8
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The Bioanalytical and Biomedical Applications of Polymer Modified Substrates. Polymers (Basel) 2022; 14:polym14040826. [PMID: 35215740 PMCID: PMC8878960 DOI: 10.3390/polym14040826] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 01/11/2023] Open
Abstract
Polymers with different structures and morphology have been extensively used to construct functionalized surfaces for a wide range of applications because the physicochemical properties of polymers can be finely adjusted by their molecular weights, polydispersity and configurations, as well as the chemical structures and natures of monomers. In particular, the specific functions of polymers can be easily achieved at post-synthesis by the attachment of different kinds of active molecules such as recognition ligand, peptides, aptamers and antibodies. In this review, the recent advances in the bioanalytical and biomedical applications of polymer modified substrates were summarized with subsections on functionalization using branched polymers, polymer brushes and polymer hydrogels. The review focuses on their applications as biosensors with excellent analytical performance and/or as nonfouling surfaces with efficient antibacterial activity. Finally, we discuss the perspectives and future directions of polymer modified substrates in the development of biodevices for the diagnosis, treatment and prevention of diseases.
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9
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Zhang M, Yu P, Xie J, Li J. Recent advances of zwitterionic based topological polymers for biomedical applications. J Mater Chem B 2022; 10:2338-2356. [PMID: 35212331 DOI: 10.1039/d1tb02323c] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Zwitterionic polymers, comprising hydrophilic anionic and cationic groups with the same total number of positive and negative charges on the same monomer residue, have received increasing attention due to their...
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Affiliation(s)
- Miao Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer, Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Peng Yu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer, Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Jing Xie
- College of Polymer Science and Engineering, State Key Laboratory of Polymer, Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer, Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P. R. China
- Med-X Center for Materials, Sichuan University, Chengdu 610041, P. R. China
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10
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Liu Y, Zhang F, Lang S, Yang L, Gao S, Wu D, Liu G, Wang Y. A Uniform and Robust Bioinspired Zwitterion Coating for Use in Blood-Contacting Catheters with Improved Anti-Inflammatory and Antithrombotic Properties. Macromol Biosci 2021; 21:e2100341. [PMID: 34644005 DOI: 10.1002/mabi.202100341] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/10/2021] [Indexed: 11/10/2022]
Abstract
Inflammation and thrombosis are two major complications of blood-contacting catheters that are used as extracorporeal circuits for hemodialysis and life-support systems. In clinical applications, complications can lead to increased mortality and morbidity rates. In this work, a biomimetic erythrocyte membrane zwitterion coating based on poly(2-methacryloyloxyethyl phosphorylcholine-co-dopamine methacrylate) (pMPCDA) copolymers is uniformly and robustly modified onto a polyvinyl chloride (PVC) catheter via mussel-inspired surface chemistry. The zwitterionic pMPCDA coating exhibits excellent antifouling activity and resists bacterial adhesion, fibrinogen adsorption, and platelet adhesion/activation. The material also demonstrates great hemocompatibility, cytocompatibility, and anticoagulation properties in vitro. Additionally, this biocompatible pMPCDA coating reduces in vivo foreign-body reactions by mitigating inflammatory response and collagen capsule formation, due to its outstanding ability to resist nonspecific protein adsorption. More importantly, when compared with a bare PVC catheter, the pMPCDA coating exhibits outstanding antithrombotic properties when tested in an ex vivo rabbit perfusion model. Thus, it is envisioned that this biomimetic erythrocyte membrane surface strategy will provide a promising way to mitigate inflammation and thrombosis caused by the use of blood-contacting catheters.
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Affiliation(s)
- Yuqi Liu
- Collage of Biomass Chemistry and Engineering, Sichuan University, Chengdu, 610065, China.,National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu, 610065, China
| | - Fanjun Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Shiying Lang
- Collage of Biomass Chemistry and Engineering, Sichuan University, Chengdu, 610065, China.,National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu, 610065, China
| | - Li Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Shuai Gao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.,Chengdu Daxan Innovative Medical Tech. Co., Ltd, Chengdu, 611135, China
| | - Dimeng Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.,Chengdu Daxan Innovative Medical Tech. Co., Ltd, Chengdu, 611135, China
| | - Gongyan Liu
- Collage of Biomass Chemistry and Engineering, Sichuan University, Chengdu, 610065, China.,National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu, 610065, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
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11
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Li P, Cai W, Li X, Wang K, Zhou L, You T, Wang R, Chen H, Zhao Y, Wang J, Huang N. Preparation of phospholipid-based polycarbonate urethanes for potential applications of blood-contacting implants. Regen Biomater 2020; 7:491-504. [PMID: 33149938 PMCID: PMC7597807 DOI: 10.1093/rb/rbaa037] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/08/2020] [Accepted: 08/17/2020] [Indexed: 12/16/2022] Open
Abstract
Polyurethanes are widely used in interventional devices due to the excellent physicochemical property. However, non-specific adhesion and severe inflammatory response of ordinary polyurethanes may lead to severe complications of intravenous devices. Herein, a novel phospholipid-based polycarbonate urethanes (PCUs) were developed via two-step solution polymerization by direct synthesis based on functional raw materials. Furthermore, PCUs were coated on biomedical metal sheets to construct biomimetic anti-fouling surface. The results of stress–strain curves exhibited excellent tensile properties of PCUs films. Differential scanning calorimetry results indicated that the microphase separation of such PCUs polymers could be well regulated by adjusting the formulation of chain extender, leading to different biological response. In vitro blood compatibility tests including bovine serum albumin adsorption, fibrinogen adsorption and denaturation, platelet adhesion and whole-blood experiment showed superior performance in inhibition non-specific adhesion of PCUs samples. Endothelial cells and smooth muscle cells culture tests further revealed a good anti-cell adhesion ability. Finally, animal experiments including ex vivo blood circulation and subcutaneous inflammation animal experiments indicated a strong ability in anti-thrombosis and histocompatibility. These results high light the strong anti-adhesion property of phospholipid-based PCUs films, which may be applied to the blood-contacting implants such as intravenous catheter or antithrombotic surface in the future.
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Affiliation(s)
- Peichuang Li
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China.,School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Wanhao Cai
- Institute of Physical Chemistry, University of Freiburg, Albertstraße 21a, Freiburg 79104, Germany
| | - Xin Li
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China.,School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Kebing Wang
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China.,School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Lei Zhou
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China.,School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Tianxue You
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China.,School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Rui Wang
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China.,School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Hang Chen
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China.,School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Yuancong Zhao
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China.,School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Jin Wang
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China.,School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Nan Huang
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China.,School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
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12
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Zhao C, Zhou L, Chiao M, Yang W. Antibacterial hydrogel coating: Strategies in surface chemistry. Adv Colloid Interface Sci 2020; 285:102280. [PMID: 33010575 DOI: 10.1016/j.cis.2020.102280] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/20/2020] [Accepted: 09/24/2020] [Indexed: 10/23/2022]
Abstract
Hydrogels have emerged as promising antimicrobial materials due to their unique three-dimensional structure, which provides sufficient capacity to accommodate various materials, including small molecules, polymers and particles. Coating substrates with antibacterial hydrogel layers has been recognized as an effective strategy to combat bacterial colonization. To prevent possible delamination of hydrogel coatings from substrates, it is crucial to attach hydrogel layers via stronger links, such as covalent bonds. To date, various surface chemical strategies have been developed to introduce hydrogel coatings on different substrates. In this review, we first give a brief introduction of the major strategies for designing antibacterial coatings. Then, we summarize the chemical methods used to fix the antibacterial hydrogel layer on the substrate, which include surface-initiated graft crosslinking polymerization, anchoring the hydrogel layer on the surface during crosslinking, and chemical crosslinking of layer-by-layer coating. The reaction mechanisms of each method and matched pretreatment strategies are systemically documented with the aim of introducing available protocols to researchers in related fields for designing hydrogel-coated antibacterial surfaces.
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13
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Faustino CMC, Lemos SMC, Monge N, Ribeiro IAC. A scope at antifouling strategies to prevent catheter-associated infections. Adv Colloid Interface Sci 2020; 284:102230. [PMID: 32961420 DOI: 10.1016/j.cis.2020.102230] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 07/31/2020] [Accepted: 07/31/2020] [Indexed: 01/15/2023]
Abstract
The use of invasive medical devices is becoming more common nowadays, with catheters representing one of the most used medical devices. However, there is a risk of infection associated with the use of these devices, since they are made of materials that are prone to bacterial adhesion with biofilm formation, often requiring catheter removal as the only therapeutic option. Catheter-related urinary tract infections (CAUTIs) and central line-associated bloodstream infections (CLABSIs) are among the most common causes of healthcare-associated infections (HAIs) worldwide while endotracheal intubation is responsible for ventilator-associated pneumonia (VAP). Therefore, to avoid the use of biocides due to the potential risk of bacterial resistance development, antifouling strategies aiming at the prevention of bacterial adherence and colonization of catheter surfaces represent important alternative measures. This review is focused on the main strategies that are able to modify the physical or chemical properties of biomaterials, leading to the creation of antiadhesive surfaces. The most promising approaches include coating the surfaces with hydrophilic polymers, such as poly(ethylene glycol) (PEG), poly(acrylamide) and poly(acrylates), betaine-based zwitterionic polymers and amphiphilic polymers or the use of bulk-modified poly(urethanes). Natural polysaccharides and its modifications with heparin, have also been used to improve hemocompatibility. Recently developed bioinspired techniques yielding very promising results in the prevention of bacterial adhesion and colonization of surfaces include slippery liquid-infused porous surfaces (SLIPS) based on the superhydrophilic rim of the pitcher plant and the Sharklet topography inspired by the shark skin, which are potential candidates as surface-modifying approaches for biomedical devices. Concerning the potential application of most of these strategies in catheters, more in vivo studies and clinical trials are needed to assure their efficacy and safety for possible future use.
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Affiliation(s)
- Célia M C Faustino
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Sara M C Lemos
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Nuno Monge
- Centro Interdisciplinar de Estudos Educacionais (CIED), Escola Superior de Educação de Lisboa, Instituto Politécnico de Lisboa, Campus de Benfica do IPL, 1549-003 Lisboa, Portugal
| | - Isabel A C Ribeiro
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
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14
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Li S, Huang P, Ye Z, Wang Y, Wang W, Kong D, Zhang J, Deng L, Dong A. Layer-by-layer zwitterionic modification of diverse substrates with durable anti-corrosion and anti-fouling properties. J Mater Chem B 2020; 7:6024-6034. [PMID: 31545333 DOI: 10.1039/c9tb01337g] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A versatile coating strategy, which is suitable for the anti-corrosion and anti-fouling modification of chemically distinct substrates, is crucial in many industries. The immobilization of zwitterionic polymers onto the surface has been proven to be an excellent approach for the improvement of antibiofouling potency. However, the anti-corrosion property has not always been considered simultaneously. Herein, a layer-by-layer (LBL) zwitterionic surface modification strategy was proposed: the surface was first coated with a polydopamine (PDA) layer for anti-corrosion; then, by self-assembling a monolayer of 3-aminopropyl triethoxysilane (APTES), the anti-corrosion ability was further enhanced and the efficiency of grafting was improved; thereafter, by immobilizing the zwitterionic polysulfobetaine (PSB) polymer brush layer, the surface could effectively repel biofouling. The surface chemical composition and morphology characterization was performed by using attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, scanning electron microscopy (SEM), atomic force microscopy (AFM), and water contact angle measurements, demonstrating that the modification was stepwise introduced onto the surface. The thickness of coating was observed and measured by SEM cross-sectional analysis. In vitro studies revealed that the PSB coated surfaces dramatically reduced the adhesion of bovine serum albumin (BSA), bovine plasma fibrinogen (Fg), bovine γ-globulin (γ-GL), the mixture of these proteins, fibroblasts, E. coli and S. aureus with superior cytocompatibility and hemocompatibility. Moreover, the electrochemical impedance spectroscopy and acidic corrosion studies indicated that an excellent and durable anti-corrosion property was established successfully on the surfaces of stainless steel, cotton textile and wood plates, confirming the feasibility of the LBL surface modification strategy. Significantly, this LBL surface chemistry may be widely applied for the modification of other materials, such as biosensors, biomedical implants and/or devices, and marine equipment.
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Affiliation(s)
- Shuangyang Li
- Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China.
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15
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da Câmara PC, Madruga LY, Sabino RM, Vlcek J, Balaban RC, Popat KC, Martins AF, Kipper MJ. Polyelectrolyte multilayers containing a tannin derivative polyphenol improve blood compatibility through interactions with platelets and serum proteins. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110919. [DOI: 10.1016/j.msec.2020.110919] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/15/2020] [Accepted: 03/31/2020] [Indexed: 01/26/2023]
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16
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Li D, Wei Q, Wu C, Zhang X, Xue Q, Zheng T, Cao M. Superhydrophilicity and strong salt-affinity: Zwitterionic polymer grafted surfaces with significant potentials particularly in biological systems. Adv Colloid Interface Sci 2020; 278:102141. [PMID: 32213350 DOI: 10.1016/j.cis.2020.102141] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/11/2020] [Accepted: 03/12/2020] [Indexed: 12/21/2022]
Abstract
In recent years, zwitterionic polymers have been frequently reported to modify various surfaces to enhance hydrophilicity, antifouling and antibacterial properties, which show significant potentials particularly in biological systems. This review focuses on the fabrication, properties and various applications of zwitterionic polymer grafted surfaces. The "graft-from" and "graft-to" strategies, surface grafting copolymerization and post zwitterionization methods were adopted to graft lots type of the zwitterionic polymers on different inorganic/organic surfaces. The inherent hydrophilicity and salt affinity of the zwitterionic polymers endow the modified surfaces with antifouling, antibacterial and lubricating properties, thus the obtained zwitterionic surfaces show potential applications in biosystems. The zwitterionic polymer grafted membranes or stationary phases can effectively separate plasma, water/oil, ions, biomolecules and polar substrates. The nanomedicines with zwitterionic polymer shells have "stealth" effect in the delivery of encapsulated drugs, siRNA or therapeutic proteins. Moreover, the zwitterionic surfaces can be utilized as wound dressing, self-healing or oil extraction materials. The zwitterionic surfaces are expected as excellent support materials for biosensors, they are facing the severe challenges in the surface protection of marine facilities, and the dense ion pair layers may take unexpected role in shielding the grafted surfaces from strong electromagnetic field.
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17
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Song J, Liu H, Lei M, Tan H, Chen Z, Antoshin A, Payne GF, Qu X, Liu C. Redox-Channeling Polydopamine-Ferrocene (PDA-Fc) Coating To Confer Context-Dependent and Photothermal Antimicrobial Activities. ACS APPLIED MATERIALS & INTERFACES 2020; 12:8915-8928. [PMID: 31971763 DOI: 10.1021/acsami.9b22339] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Microbial disinfection associated with medical device surfaces has been an increasing need, and surface modification strategies such as antibacterial coatings have gained great interest. Here, we report the development of polydopamine-ferrocene (PDA-Fc)-functionalized TiO2 nanorods (Ti-Nd-PDA-Fc) as a context-dependent antibacterial system on implant to combat bacterial infection and hinder biofilm formation. In this work, two synergistic antimicrobial mechanisms of the PDA-Fc coating are proposed. First, the PDA-Fc coating is redox-active and can be locally activated to release antibacterial reactive oxygen species (ROS), especially ·OH in response to the acidic microenvironment induced by bacteria colonization and host immune responses. The results demonstrate that redox-based antimicrobial activity of Ti-Nd-PDA-Fc offers antibacterial efficacy of over 95 and 92% against methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli), respectively. Second, the photothermal effect of PDA can enhance the antibacterial capability upon near-infrared (NIR) irradiation, with over 99% killing efficacy against MRSA and E. coli, and even suppress the formation of biofilm through both localized hyperthermia and enhanced ·OH generation. Additionally, Ti-Nd-PDA-Fc is biocompatible when tested with model pre-osteoblast MC-3T3 E1 cells and promotes cell adhesion and spreading presumably due to its nanotopographical features. The MRSA-infected wound model also indicates that Ti-Nd-PDA-Fc with NIR irradiation can effectively eliminate bacterial infection and suppress host inflammatory responses. We believe that this study demonstrates a simple means to create biocompatible redox-active coatings that confer context-dependent antibacterial activities to implant surfaces.
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Affiliation(s)
- Jialin Song
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, School of Material Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Huan Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, School of Material Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Miao Lei
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, School of Material Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Haoqi Tan
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, School of Material Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Zhanyi Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, School of Material Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Artem Antoshin
- Institute for Regenerative Medicine , Sechenov University , 8-2 Trubetskaya Street , Moscow 119991 , Russia
| | - Gregory F Payne
- Department of Bioengineering , Institute for Biosystems and Biotechnology Research and Fischell , 5115 Plant Sciences Building, College Park , Maryland 20742 , United States
| | - Xue Qu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, School of Material Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, School of Material Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
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18
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Swar S, Máková V, Horáková J, Kejzlar P, Parma P, Stibor I. A comparative study between chemically modified and copper nanoparticle immobilized Nylon 6 films to explore their efficiency in fighting against two types of pathogenic bacteria. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109392] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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19
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Calcium peroxide-mediated oxygen supply for improved coating efficiency of bio-inspired catecholamine. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Su L, Li Y, Liu Y, An Y, Shi L. Recent Advances and Future Prospects on Adaptive Biomaterials for Antimicrobial Applications. Macromol Biosci 2019; 19:e1900289. [PMID: 31642591 DOI: 10.1002/mabi.201900289] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/19/2019] [Indexed: 12/15/2022]
Abstract
Bacterial infection is becoming the biggest threat to human health. The scenario is partly due to the ineffectiveness of the conventional antibiotic treatments against the emergence of multidrug-resistant bacteria and partly due to the bacteria living in biofilms or cells. Adaptive biomaterials can change their physicochemical properties in the microenvironment of bacterial infection, thereby facilitating either their interactions with bacteria or drug release. The trends in treating bacterial infections using adaptive biomaterials-based systems are flourishing and generate innumerous possibility to design novel antimicrobial therapeutics. This feature article aims to summarize the recent developments in the formulations, mechanisms, and advances of adaptive materials in bacterial infection diagnosis, contact killing of bacteria, and antimicrobial drug delivery. Also, the challenges and limitations of current antimicrobial treatments based on adaptive materials and their clinical and industrial future prospects are discussed.
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Affiliation(s)
- Linzhu Su
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yuanfeng Li
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yong Liu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yingli An
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Linqi Shi
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
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21
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Katayama R, Ikeda M, Shiraishi K, Matsumoto A, Kojima C. Formation of Hydrophobic Domains on the poly(MPC- co-Dodecyl Methacrylate)-Coated Surface Recognized by Macrophage-like Cells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12229-12235. [PMID: 30813727 DOI: 10.1021/acs.langmuir.9b00178] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Copolymers comprising 2-methacryloyloxyethyl phosphorylcholine (MPC) and hydrophobic methacrylic esters were used as biomembrane-mimetic polymers to provide blood compatibility. In the present study, we compared the surfaces coated with two MPC polymers with different alkyl groups, namely, poly(MPC-co-butyl methacrylate) (PMB) and poly(MPC-co-dodecyl methacrylate) (PMD), to clarify the effect of their hydrophobic units. Various substrates, such as poly(ethylene terephthalate), polycarbonate, polypropylene, acrylonitrile-butadiene-styrene copolymer, and stainless steel, were coated with ethanol solutions containing various concentrations of PMD or PMB. The solubility of PMD in ethanol changed depending on the water content. Scanning probe microscopy and rhodamine 6G staining revealed heterogeneous microstructures on the PMD-coated surface but not on the PMB-coated surface. Adhesion of various cells was efficiently suppressed by the PMD coating at lower concentration than the PMB coating, except regarding the adhesion of macrophage-like RAW264.7 cells. Our results suggest that the dodecyl groups in PMD increased its affinity for the substrates and simultaneously induced the formation of hydrophobic domains recognized by RAW264.7 cells.
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Affiliation(s)
- Risa Katayama
- Department of Applied Chemistry, Graduate School of Engineering , Osaka Prefecture University , 1-1, Gakuen-cho, Naka-ku , Sakai , Osaka 599-8531 , Japan
| | - Musashi Ikeda
- Department of Applied Chemistry, Graduate School of Engineering , Osaka Prefecture University , 1-1, Gakuen-cho, Naka-ku , Sakai , Osaka 599-8531 , Japan
| | - Kohei Shiraishi
- Graduate School of Systems Engineering , Kindai University , 1 Takaya-umenobe, Higashi-hiroshima , Hiroshima 739-2116 , Japan
| | - Akikazu Matsumoto
- Department of Applied Chemistry, Graduate School of Engineering , Osaka Prefecture University , 1-1, Gakuen-cho, Naka-ku , Sakai , Osaka 599-8531 , Japan
| | - Chie Kojima
- Department of Applied Chemistry, Graduate School of Engineering , Osaka Prefecture University , 1-1, Gakuen-cho, Naka-ku , Sakai , Osaka 599-8531 , Japan
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22
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Tran DL, Le Thi P, Hoang Thi TT, Park KD. Graphene oxide immobilized surfaces facilitate the sustained release of doxycycline for the prevention of implant related infection. Colloids Surf B Biointerfaces 2019; 181:576-584. [PMID: 31195313 DOI: 10.1016/j.colsurfb.2019.06.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/04/2019] [Accepted: 06/04/2019] [Indexed: 11/15/2022]
Abstract
Preventing implant-associated infection, which can lead to implant failure and increased medical costs, is one of the biggest challenges in the orthopaedic surgeons. Therefore, the development of stable and highly effective surface modifications to increase the antimicrobial properties of implants is required. In this study, graphene oxide (GO-)-immobilized titanium dioxide (TiO₂) was developed to efficiently carry and release antimicrobial drugs. Firstly, tyramine-conjugated GO (GOTA) was synthesized and immobilized onto the surfaces of TiO₂ through tyrosinase (Tyr)-catalyzed oxidative reaction (GOTA/TiO₂). Doxycycline hyclate (Dox) was then loaded onto GOTA/TiO₂ via non-covalent interactions between GO and Dox (Dox/GOTA/TiO₂), including electrostatic interaction, π-π stacking, hydrophobic interaction, and hydrogen bonds. The amount of loaded drug was able to be controlled, reaching a maximum of 36 μg/cm2. in vitro experiments revealed that the sustained release of Dox from the TiO₂ surfaces continued for over 30 days. Compared with bare TiO₂ and GOTA/TiO2, Dox/GOTA/TiO₂ exhibited superior antibacterial activity against both gram-negative Escherichia coli and gram-positive Staphylococcus aureus bacteria, without affecting the viability of human dermal fibroblasts. The obtained results indicated that GO-immobilized TiO₂ is an effective carrier for antimicrobial drug delivery to reduce implant-associated infection through the synergistic antimicrobial effect of GO and the prescribed drugs.
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Affiliation(s)
- Dieu Linh Tran
- Department of Molecular Science and Technology, Ajou University, Suwon, 16499, Republic of Korea
| | - Phuong Le Thi
- Department of Molecular Science and Technology, Ajou University, Suwon, 16499, Republic of Korea
| | - Thai Thanh Hoang Thi
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, 700000, Viet Nam
| | - Ki Dong Park
- Department of Molecular Science and Technology, Ajou University, Suwon, 16499, Republic of Korea.
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23
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Querido MM, Aguiar L, Neves P, Pereira CC, Teixeira JP. Self-disinfecting surfaces and infection control. Colloids Surf B Biointerfaces 2019; 178:8-21. [PMID: 30822681 PMCID: PMC7127218 DOI: 10.1016/j.colsurfb.2019.02.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 02/04/2019] [Accepted: 02/05/2019] [Indexed: 12/27/2022]
Abstract
According to World Health Organization, every year in the European Union, 4 million patients acquire a healthcare associated infection. Even though some microorganisms represent no threat to healthy people, hospitals harbor different levels of immunocompetent individuals, namely patients receiving immunosuppressors, with previous infections, or those with extremes of age (young children and elderly), requiring the implementation of effective control measures. Public spaces have also been found an important source of infectious disease outbreaks due to poor or none infection control measures applied. In both places, surfaces play a major role on microorganisms' propagation, yet they are very often neglected, with very few guidelines about efficient cleaning measures and microbiological assessment available. To overcome surface contamination problems, new strategies are being designed to limit the microorganisms' ability to survive over surfaces and materials. Surface modification and/or functionalization to prevent contamination is a hot-topic of research and several different approaches have been developed lately. Surfaces with anti-adhesive properties, with incorporated antimicrobial substances or modified with biological active metals are some of the strategies recently proposed. This review intends to summarize the problems associated with contaminated surfaces and their importance on infection spreading, and to present some of the strategies developed to prevent this public health problem, namely some already being commercialized.
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Affiliation(s)
- Micaela Machado Querido
- National Institute of Health, Environmental Health Department, Porto, Portugal; EPIUnit - Institute of Public Health, University of Porto, Porto, Portugal
| | - Lívia Aguiar
- National Institute of Health, Environmental Health Department, Porto, Portugal
| | - Paula Neves
- National Institute of Health, Environmental Health Department, Porto, Portugal
| | - Cristiana Costa Pereira
- National Institute of Health, Environmental Health Department, Porto, Portugal; EPIUnit - Institute of Public Health, University of Porto, Porto, Portugal.
| | - João Paulo Teixeira
- National Institute of Health, Environmental Health Department, Porto, Portugal; EPIUnit - Institute of Public Health, University of Porto, Porto, Portugal
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24
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Qiao Z, Xu D, Yao Y, Song S, Yin M, Luo J. Synthesis and antifouling activities of fluorinated polyurethanes. POLYM INT 2019. [DOI: 10.1002/pi.5826] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Zhuangzhuang Qiao
- College of Chemistry and Environmental Protection EngineeringSouthwest Minzu University Chengdu China
| | - Deqiu Xu
- College of Chemistry and Environmental Protection EngineeringSouthwest Minzu University Chengdu China
| | - Yan Yao
- College of Chemistry and Environmental Protection EngineeringSouthwest Minzu University Chengdu China
| | - Shaomin Song
- College of Chemistry and Environmental Protection EngineeringSouthwest Minzu University Chengdu China
| | - Meihui Yin
- College of Chemistry and Environmental Protection EngineeringSouthwest Minzu University Chengdu China
| | - Jianbin Luo
- College of Chemistry and Environmental Protection EngineeringSouthwest Minzu University Chengdu China
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25
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Chen SH, Fukazawa K, Inoue Y, Ishihara K. Photoinduced Surface Zwitterionization for Antifouling of Porous Polymer Substrates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1312-1319. [PMID: 29936847 DOI: 10.1021/acs.langmuir.8b01089] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Surface functionalization of polymeric porous substrates is one of the most important requirements to enhance their applications in the biomedical field. In this study, we achieved photoinduced surface modification using a highly efficient reaction of hydrophilic polymers bearing phosphorylcholine groups. Polymers composed of 2-methacryloyloxyethyl phosphorylcholine (MPC) units and 2-( N-ethylanilino)ethyl methacrylate units were synthesized with attention to the polymer architectures. The surface modification of the porous polyethylene (PE) substrates was carried out by the coating of the MPC polymers with a photochemical radical generator, followed by photoirradiation for a few minutes. Surface analysis by attenuated total reflectance Fourier transform IR spectroscopy and X-ray photoelectron spectroscopy indicated that the MPC polymer layer was generated on the PE surface. Cross-sectional confocal microscopy images showed that the MPC polymers were coated on the polymer surface, even inside the porous structure of the PE substrate. After modification, the porous PE substrates showed a significant increase in hydrophilicity and the water-penetration rate through the pores. Furthermore, the amount of protein adsorbed on the PE substrate was reduced significantly by the surface modification. These functionalities were dependent on the MPC polymer architectures. Thus, we concluded that the photoreactive polymer system developed furnished the porous substrates with antifouling properties.
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Affiliation(s)
- Sheng-Han Chen
- Department of Materials Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Kyoko Fukazawa
- Department of Materials Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Yuuki Inoue
- Department of Materials Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
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26
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Small M, Faglie A, Craig AJ, Pieper M, Fernand Narcisse VE, Neuenschwander PF, Chou SF. Nanostructure-Enabled and Macromolecule-Grafted Surfaces for Biomedical Applications. MICROMACHINES 2018; 9:E243. [PMID: 30424176 PMCID: PMC6187347 DOI: 10.3390/mi9050243] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 05/11/2018] [Accepted: 05/16/2018] [Indexed: 12/19/2022]
Abstract
Advances in nanotechnology and nanomaterials have enabled the development of functional biomaterials with surface properties that reduce the rate of the device rejection in injectable and implantable biomaterials. In addition, the surface of biomaterials can be functionalized with macromolecules for stimuli-responsive purposes to improve the efficacy and effectiveness in drug release applications. Furthermore, macromolecule-grafted surfaces exhibit a hierarchical nanostructure that mimics nanotextured surfaces for the promotion of cellular responses in tissue engineering. Owing to these unique properties, this review focuses on the grafting of macromolecules on the surfaces of various biomaterials (e.g., films, fibers, hydrogels, and etc.) to create nanostructure-enabled and macromolecule-grafted surfaces for biomedical applications, such as thrombosis prevention and wound healing. The macromolecule-modified surfaces can be treated as a functional device that either passively inhibits adverse effects from injectable and implantable devices or actively delivers biological agents that are locally based on proper stimulation. In this review, several methods are discussed to enable the surface of biomaterials to be used for further grafting of macromolecules. In addition, we review surface-modified films (coatings) and fibers with respect to several biomedical applications. Our review provides a scientific update on the current achievements and future trends of nanostructure-enabled and macromolecule-grafted surfaces in biomedical applications.
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Affiliation(s)
- Madeline Small
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Addison Faglie
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Alexandra J Craig
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Martha Pieper
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Vivian E Fernand Narcisse
- Department of Chemistry and Physics, School of Arts and Sciences, LeTourneau University, Longview, TX 75607, USA.
| | - Pierre F Neuenschwander
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, TX 75708, USA.
| | - Shih-Feng Chou
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
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27
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Ji F, Sun H, Qin Z, Zhang E, Cui J, Wang J, Li S, Yao F. Engineering Polyzwitterion and Polydopamine Decorated Doxorubicin-Loaded Mesoporous Silica Nanoparticles as a pH-Sensitive Drug Delivery. Polymers (Basel) 2018; 10:E326. [PMID: 30966361 PMCID: PMC6415439 DOI: 10.3390/polym10030326] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/13/2018] [Accepted: 03/14/2018] [Indexed: 01/15/2023] Open
Abstract
Multifunctional drug carriers have great applications in biomedical field. In this study, we introduced both polydopamine (PDA) and zwitterionic polymer of poly(3-(3-methacrylamidopropyl-(dimethyl)-ammonio)propane-1-sulfonate) (PSPP) onto the surface of mesoporous silica nanoparticles (MSNs) to develop a novel nanoparticle (MSNs@PDA-PSPP), which was employed as a new kind of drug carrier for the delivery of doxorubicin (DOX). The PDA coating, as a gatekeeper, could endow the drug carrier with pH-sensitive drug release performance. The outermost PSPP layer would make the drug carrier possess protein resistance performance. The chemical structure and properties were characterized by Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), dynamic light scattering (DLS) and thermogravimetric analysis (TGA). MSNs@PDA-PSPP could keep good colloidal stability within 72 h in phosphate buffered saline (PBS) and protein solutions. Meanwhile, MSNs@PDA-PSPP exhibited a high drug loading for DOX. In vitro drug release experiments suggested MSNs-DOX@PDA-PSPP exhibited pH-dependent drug release behaviors. Besides, MSNs@PDA-PSPP had no cytotoxicity to human hepatocellular carcinoma cells (HepG2 cells) even at a concentration of 125 µg/mL. More importantly, cellular uptake and in vitro anticancer activity tests suggested that MSNs-DOX@PDA-PSPP could be taken up by HepG2 cells and DOX could be successfully released and delivered into the cell nuclei. Taken together, MSNs@PDA-PSPP have great potential in the biomedical field.
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Affiliation(s)
- Feng Ji
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Hong Sun
- Department of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063000, China.
| | - Zhihui Qin
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Ershuai Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Jing Cui
- Department of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063000, China.
| | - Jinmei Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
- School of Pharmaceutical Science (Shenzhen), Sun Yat-sen University (SYSU), 135 Xingang Xi Road, Guangzhou 510275, China.
| | - Shuofeng Li
- Department of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063000, China.
| | - Fanglian Yao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
- Key Laboratory of Systems Bioengineering of Ministry of Education, Tianjin University, Tianjin 300072, China.
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28
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Zhao R, Li Y, Li X, Li Y, Sun B, Chao S, Wang C. Facile hydrothermal synthesis of branched polyethylenimine grafted electrospun polyacrylonitrile fiber membrane as a highly efficient and reusable bilirubin adsorbent in hemoperfusion. J Colloid Interface Sci 2018; 514:675-685. [DOI: 10.1016/j.jcis.2017.12.059] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 12/18/2017] [Accepted: 12/21/2017] [Indexed: 11/26/2022]
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29
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Lee SY, Lee Y, Le Thi P, Oh DH, Park KD. Sulfobetaine methacrylate hydrogel-coated anti-fouling surfaces for implantable biomedical devices. Biomater Res 2018; 22:3. [PMID: 29449959 PMCID: PMC5808389 DOI: 10.1186/s40824-017-0113-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 12/20/2017] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Zwitterionic molecules have been widely studied as coating materials for preparing anti-fouling surfaces because they possess strong hydration properties that can resist non-specific protein adsorption. Numerous studies on surface modification using zwitterionic molecules have been investigated, such as electrochemically mediated and photoinitiated radical polymerization. However, these methods have some limitations, including multi-step process, difficulties in producing thick and dense layers as well as the requirement of extra facilities. In this study, we report a novel zwitterionic hydrogel-coating method via Fenton reaction for the preparation of anti-fouling surfaces. METHODS Sulfobetaine methacrylate (SBMA) hydrogel was coated on polyurethane (PU) by polymerization of SBMA molecules via the Fenton reaction. The coated surfaces were characterized by the measurements of water contact angle, SEM and XPS. The anti-fouling properties of the modified surfaces were evaluated by reductions of fibrinogen absorption and cell (human dermal fibroblasts, hDFBs) adhesion. RESULTS SBMA hydrogel layers were coated on the PU substrates and these layers have a high affinity for water. The hydrogel coatings were highly stable for 7 days, without a significant change in surface wettability. Importantly, the hydrogel-coated PU substrates decrease 80% of surface-adsorbed fibrinogen and surface-attached hDFBs (compared with uncoated PU substrates), indicating the excellent anti-fouling activities of modified surfaces. CONCLUSIONS The hydrogel-coated PU surfaces prepared by Fenton reaction with anti-fouling properties could have potential uses for implantable biomedical devices.
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Affiliation(s)
- Se Yeong Lee
- Department of Molecular Science and Technology, Ajou University, San 5, Woncheon, Yeongtong, Suwon, 16499 Republic of Korea
| | - Yunki Lee
- Department of Molecular Science and Technology, Ajou University, San 5, Woncheon, Yeongtong, Suwon, 16499 Republic of Korea
| | - Phuong Le Thi
- Department of Molecular Science and Technology, Ajou University, San 5, Woncheon, Yeongtong, Suwon, 16499 Republic of Korea
| | - Dong Hwan Oh
- Department of Molecular Science and Technology, Ajou University, San 5, Woncheon, Yeongtong, Suwon, 16499 Republic of Korea
| | - Ki Dong Park
- Department of Molecular Science and Technology, Ajou University, San 5, Woncheon, Yeongtong, Suwon, 16499 Republic of Korea
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30
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Wang M, Xiao Y, Lin L, Zhu X, Du L, Shi X. A Microfluidic Chip Integrated with Hyaluronic Acid-Functionalized Electrospun Chitosan Nanofibers for Specific Capture and Nondestructive Release of CD44-Overexpressing Circulating Tumor Cells. Bioconjug Chem 2018; 29:1081-1090. [PMID: 29415537 DOI: 10.1021/acs.bioconjchem.7b00747] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | | | - Lizhou Lin
- Department of Ultrasound, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, People’s Republic of China
| | | | - Lianfang Du
- Department of Ultrasound, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, People’s Republic of China
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31
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Yang S, Han X, Jia Y, Zhang H, Tang T. Hydroxypropyltrimethyl Ammonium Chloride Chitosan Functionalized-PLGA Electrospun Fibrous Membranes as Antibacterial Wound Dressing: In Vitro and In Vivo Evaluation. Polymers (Basel) 2017; 9:E697. [PMID: 30965998 PMCID: PMC6418617 DOI: 10.3390/polym9120697] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 12/05/2017] [Accepted: 12/05/2017] [Indexed: 11/20/2022] Open
Abstract
A novel poly(lactic-co-glycolic acid) (PLGA)-hydroxypropyltrimethyl ammonium chloride chitosan (HACC) composite nanofiber wound dressing was prepared through electrospinning and the entrapment-graft technique as an antibacterial dressing for cutaneous wound healing. HACC with 30% degrees of substitution (DS) was immobilized onto the surface of PLGA membranes via the reaction between carboxyl groups in PLGA after alkali treatment and the reactive groups (⁻NH₂) in HACC molecules. The naked PLGA and chitosan graft PLGA (PLGA-CS) membranes served as controls. The surface immobilization was characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), Fourier transform infrared (FTIR), thermogravimetric analysis (TGA) and energy dispersive X-ray spectrometry (EDX). The morphology studies showed that the membranes remain uniform after the immobilization process. The effects of the surface modification by HACC and CS on the biological properties of the membranes were also investigated. Compared with PLGA and PLGA-CS, PLGA-HACC exhibited more effective antibacterial activity towards both Gram-positive (S. aureus) and Gram-negative (P. aeruginosa) bacteria. The newly developed fibrous membranes were evaluated in vitro for their cytotoxicity using human dermal fibroblasts (HDFs) and human keratinocytes (HaCaTs) and in vivo using a wound healing mice model. It was revealed that PLGA-HACC fibrous membranes exhibited favorable cytocompatibility and significantly stimulated adhesion, spreading and proliferation of HDFs and HaCaTs. PLGA-HACC exhibited excellent wound healing efficacy, which was confirmed using a full thickness excision wound model in S. aureus-infected mice. The experimental results in this work suggest that PLGA-HACC is a strong candidate for use as a therapeutic biomaterial in the treatment of infected wounds.
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Affiliation(s)
- Shengbing Yang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Xiuguo Han
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Yuhang Jia
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Hongbo Zhang
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
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