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Assiri AA, Glover K, Mishra D, Waite D, Vora LK, Raj Singh Thakur R. Block copolymer micelles as ocular drug delivery systems. Drug Discov Today 2024:104098. [PMID: 38997002 DOI: 10.1016/j.drudis.2024.104098] [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: 02/27/2024] [Revised: 06/07/2024] [Accepted: 07/06/2024] [Indexed: 07/14/2024]
Abstract
Block copolymer micelles, formed by the self-assembly of amphiphilic polymers, address formulation challenges, such as poor drug solubility and permeability. These micelles offer advantages including a smaller size, easier preparation, sterilization, and superior solubilization, compared with other nanocarriers. Preclinical studies have shown promising results, advancing them toward clinical trials. Their mucoadhesive properties enhance and prolong contact with the ocular surface, and their small size allows deeper penetration through tissues such as the cornea. Additionally, copolymeric micelles improve the solubility and stability of hydrophobic drugs, sustain drug release, and allow for surface modifications to enhance biocompatibility. Despite these benefits, long-term stability remains a challenge. In this review, we highlight their preclinical performance, structural frameworks, preparation techniques, physicochemical properties, current developments, and prospects as ocular drug delivery systems.
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Affiliation(s)
- Ahmad A Assiri
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK; Department of Pharmacognosy, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Katie Glover
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Deepakkumar Mishra
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - David Waite
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Lalitkumar K Vora
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK.
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2
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Cai R, Zhang L, Chi H. Recent development of polymer nanomicelles in the treatment of eye diseases. Front Bioeng Biotechnol 2023; 11:1246974. [PMID: 37600322 PMCID: PMC10436511 DOI: 10.3389/fbioe.2023.1246974] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 07/26/2023] [Indexed: 08/22/2023] Open
Abstract
The eye, being one of the most intricate organs in the human body, hosts numerous anatomical barriers and clearance mechanisms. This highlights the importance of devising a secure and efficacious ocular medication delivery system. Over the past several decades, advancements have been made in the development of a nano-delivery platform based on polymeric micelles. These advancements encompass diverse innovations such as poloxamer, chitosan, hydrogel-encapsulated micelles, and contact lenses embedded with micelles. Such technological evolutions allow for sustained medication retention and facilitate enhanced permeation within the eye, thereby standing as the avant-garde in ocular medication technology. This review provides a comprehensive consolidation of ocular medications predicated on polymer nanomicelles from 2014 to 2023. Additionally, it explores the challenges they pose in clinical applications, a discussion intended to aid the design of future clinical research concerning ocular medication delivery formulations.
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Affiliation(s)
- Ruijun Cai
- Department of Pharmacy, The People’s Hospital of Jiuquan, Jiuquan, Gansu, China
| | - Ling Zhang
- Department of Pharmacy, The People’s Hospital of Jiuquan, Jiuquan, Gansu, China
| | - Hao Chi
- Qingdao Municipal Hospital, University of Health and Rehabilitation Sciences, Qingdao, China
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3
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Musin EV, Kim AL, Dubrovskii AV, Ariskina EV, Kudryashova EB, Tikhonenko SA. The Pathways to Create Containers for Bacteriophage Delivery. Polymers (Basel) 2022; 14:polym14030613. [PMID: 35160602 PMCID: PMC8840248 DOI: 10.3390/polym14030613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/01/2022] [Accepted: 02/03/2022] [Indexed: 12/10/2022] Open
Abstract
Antimicrobial resistance is a global public health threat. One of the possible ways to solve this problem is phage therapy, but the instability of bacteriophages hinders the development of this approach. A bacteriophage delivery system that stabilizes the phage is one of the possible solutions to this problem. This study is dedicated to exploring methods to create encapsulated forms of bacteriophages for delivery. We studied the effect of proteolytic enzymes on the destruction of the polyelectrolyte microcapsule shell and revealed that protease from Streptomyces griseus was able to destroy the membrane of the microcapsule (dextran sulfate/polyarginine)3 ((DS/PArg)3). In addition, the protease decreased the activity of the bacteriophage in the second hour of incubation, and the phage lost activity after 16 h. It was found that a medium with pH 9.02 did not affect the survival of the bacteriophage or E. coli. The bacteriophages were encapsulated into polyelectrolyte microcapsules (DS/PArg)3. It was established that it is impossible to use microcapsules as a means of delivering bacteriophages since the bacteriophages are inactivated. When bacteriophages were included inside a CaCO3 core, it was demonstrated that the phage retained activity before and after the dissolution of the CaCO3 particle. From the results of this study, we recommend using CaCO3 microparticles as a container for bacteriophage delivery through the acidic stomach barrier.
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Affiliation(s)
- Egor V. Musin
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Science, Institutskaya St., 3, 142290 Puschino, Moscow Region, Russia; (E.V.M.); (A.L.K.); (A.V.D.)
| | - Aleksandr L. Kim
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Science, Institutskaya St., 3, 142290 Puschino, Moscow Region, Russia; (E.V.M.); (A.L.K.); (A.V.D.)
| | - Alexey V. Dubrovskii
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Science, Institutskaya St., 3, 142290 Puschino, Moscow Region, Russia; (E.V.M.); (A.L.K.); (A.V.D.)
| | - Elena V. Ariskina
- All-Russian Collection of Microorganisms (VKM), G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Prospect Nauki 5, 142290 Pushchino, Moscow Region, Russia; (E.B.K.); (E.V.A.)
| | - Ekaterina B. Kudryashova
- All-Russian Collection of Microorganisms (VKM), G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Prospect Nauki 5, 142290 Pushchino, Moscow Region, Russia; (E.B.K.); (E.V.A.)
| | - Sergey A. Tikhonenko
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Science, Institutskaya St., 3, 142290 Puschino, Moscow Region, Russia; (E.V.M.); (A.L.K.); (A.V.D.)
- Correspondence:
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Mateos-Maroto A, Fernández-Peña L, Abelenda-Núñez I, Ortega F, Rubio RG, Guzmán E. Polyelectrolyte Multilayered Capsules as Biomedical Tools. Polymers (Basel) 2022; 14:polym14030479. [PMID: 35160468 PMCID: PMC8838751 DOI: 10.3390/polym14030479] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/20/2022] [Accepted: 01/22/2022] [Indexed: 12/10/2022] Open
Abstract
Polyelectrolyte multilayered capsules (PEMUCs) obtained using the Layer-by-Layer (LbL) method have become powerful tools for different biomedical applications, which include drug delivery, theranosis or biosensing. However, the exploitation of PEMUCs in the biomedical field requires a deep understanding of the most fundamental bases underlying their assembly processes, and the control of their properties to fabricate novel materials with optimized ability for specific targeting and therapeutic capacity. This review presents an updated perspective on the multiple avenues opened for the application of PEMUCs to the biomedical field, aiming to highlight some of the most important advantages offered by the LbL method for the fabrication of platforms for their use in the detection and treatment of different diseases.
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Affiliation(s)
- Ana Mateos-Maroto
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Laura Fernández-Peña
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
- Centro de Espectroscopía y Correlación, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
| | - Irene Abelenda-Núñez
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
| | - Francisco Ortega
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Ramón G. Rubio
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Eduardo Guzmán
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
- Correspondence:
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5
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Polyelectrolyte Multilayers: An Overview on Fabrication, Properties, and Biomedical and Environmental Applications. MATERIALS 2021; 14:ma14154152. [PMID: 34361346 PMCID: PMC8348132 DOI: 10.3390/ma14154152] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/22/2021] [Accepted: 07/23/2021] [Indexed: 12/11/2022]
Abstract
Polyelectrolyte multilayers are versatile materials that are used in a large number of domains, including biomedical and environmental applications. The fabrication of polyelectrolyte multilayers using the layer-by-layer technique is one of the simplest methods to obtain composite functional materials. The properties of the final material can be easily tuned by changing the deposition conditions and the used building blocks. This review presents the main characteristics of polyelectrolyte multilayers, the fabrication methods currently used, and the factors influencing the layer-by-layer assembly of polyelectrolytes. The last section of this paper presents some of the most important applications of polyelectrolyte multilayers, with a special focus on biomedical and environmental applications.
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Wu Y, Wang J, Li L, Fei X, Xu L, Wang Y, Tian J, Li Y. A novel hydrogel with self-healing property and bactericidal activity. J Colloid Interface Sci 2021; 584:484-494. [PMID: 33129158 DOI: 10.1016/j.jcis.2020.09.105] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/20/2020] [Accepted: 09/26/2020] [Indexed: 12/20/2022]
Abstract
In this study, we have designed and synthesized a novel poly (4 - vinyl benzene boronic acid - co - N - vinyl pyrrolidone - co - 1 - vinyl - 3 - butylimidazolium bromide) hydrogel (VNV hydrogel) dressing with good self-healing properties and bactericidal activity. The gelation and self-healing of this hydrogel are mainly achieved by the formation of a dynamic B-O-B bond between the polymer chains, which is fractured by external forces and subsequently reformed. This self-healing mechanism is studied in detail through the molecular design of the hydrogel. The introduction of hydrophilic chemical groups can effectively improve the porous structures, water absorption and molecular migration. These properties have a positive effect on improving self-healing properties of dynamic crosslinked hydrogels. Furthermore, this VNV hydrogel dressing displays good antibacterial activity against E. coli, S. aureus, and C. albicans. The application of VNV hydrogel dressing on rat wound surface can effectively accelerate wound healing. These results indicate that this novel VNV hydrogel dressing with good self-healing properties and bactericidal activity has potential applications in wound dressings.
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Affiliation(s)
- Yuxuan Wu
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, China; School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Jihui Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; School of Chemical Engineering & Energy Technology, Dongguan University of Technology, Dongguan 528808, China
| | - Lin Li
- School of Chemical Engineering & Energy Technology, Dongguan University of Technology, Dongguan 528808, China
| | - Xu Fei
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, China.
| | - Longquan Xu
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, China
| | - Yi Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Jing Tian
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Yao Li
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
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7
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Govardhana Reddy PV, Rajendra Prasad Reddy B, Venkata Krishna Reddy M, Raghava Reddy K, Shetti NP, Saleh TA, Aminabhavi TM. A review on multicomponent reactions catalysed by zero-dimensional/one-dimensional titanium dioxide (TiO 2) nanomaterials: Promising green methodologies in organic chemistry. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 279:111603. [PMID: 33172705 DOI: 10.1016/j.jenvman.2020.111603] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/30/2020] [Accepted: 10/30/2020] [Indexed: 05/14/2023]
Abstract
Heterogeneous catalysis has currently become an emerging tool for the design and development of sustainable manufacturing processes in order to obtain advanced intermediates, fine chemicals, and bioactive molecules. This field has been considered efficient and eco-friendly, as it investigates the utilization of non-hazardous metals for atom-economical reactions. Nanomaterials have created a significant impact on scientific and engineering advancements due to their tunable properties with superior performance over their massive counterparts. Due to the increased demand for heterogeneous catalysts in industries and academia, different transition metal oxides have been made into substantial nanostructures. Among them, titanium dioxide (TiO2) nanomaterials have received more attention on account of their chemical stability, low cost, dual acid-base properties, good oxidation rate and refractive index. Different modifications of TiO2 extend their applications as active catalysts or catalyst supports in diverse catalytic processes, such as photovoltaics, lithium batteries, pigments and others. One-dimensional (1-D) TiO2 nanostructures such as nanotubes, nanowires and nanorods have achieved greater importance owing to the unique properties of improved porosity, decreased inter-crystalline contacts, large surface-to-volume ratio, superior dispersibility, amplified accessibility of hydroxyl (-OH) groups and presence of good concentrations of Brønsted/Lewis acid sites. Since the discovery, 1-D TiO2 nanostructures have served good photocatalytic applications, but were less explored in organic transformations. While many articles and reviews have covered the applications of 0-D and 1-D TiO2 nanostructured materials (NSMs) in photoelectrochemical reactions and solar cells, there are other interesting applications of these as well. In contrast to the conventional multi-step processes that utilise the stepwise formation of individual bonds, one-pot conversions based on multicomponent reactions (MCRs) have acquired much significance in contemporary organic synthesis. This paper presents a critical review on history, classification, design and synthetic utility of titania-based nanostructures, which could be used as robust solid-acid catalysts and catalyst supports for MCRs. Further, to put ideas into perspective, the introduction and applications of MCRs for various organic transformations have been discussed.
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Affiliation(s)
| | | | | | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Nagaraj P Shetti
- Center for Electrochemical Science & Materials, Department of Chemistry, K.L.E. Institute of Technology, Hubballi, 580 027, Karnataka, India
| | - Tawfik A Saleh
- Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Tejraj M Aminabhavi
- Department of Pharmaceutics, SETs' College of Pharmacy, Dharwad, 580 007, Karnataka, India.
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8
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Campbell J, Vikulina AS. Layer-By-Layer Assemblies of Biopolymers: Build-Up, Mechanical Stability and Molecular Dynamics. Polymers (Basel) 2020; 12:E1949. [PMID: 32872246 PMCID: PMC7564420 DOI: 10.3390/polym12091949] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 12/18/2022] Open
Abstract
Rapid development of versatile layer-by-layer technology has resulted in important breakthroughs in the understanding of the nature of molecular interactions in multilayer assemblies made of polyelectrolytes. Nowadays, polyelectrolyte multilayers (PEM) are considered to be non-equilibrium and highly dynamic structures. High interest in biomedical applications of PEMs has attracted attention to PEMs made of biopolymers. Recent studies suggest that biopolymer dynamics determines the fate and the properties of such PEMs; however, deciphering, predicting and controlling the dynamics of polymers remains a challenge. This review brings together the up-to-date knowledge of the role of molecular dynamics in multilayers assembled from biopolymers. We discuss how molecular dynamics determines the properties of these PEMs from the nano to the macro scale, focusing on its role in PEM formation and non-enzymatic degradation. We summarize the factors allowing the control of molecular dynamics within PEMs, and therefore to tailor polymer multilayers on demand.
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Affiliation(s)
- Jack Campbell
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK;
| | - Anna S. Vikulina
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses, Am Mühlenberg 13, 14476 Potsdam-Golm, Germany
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9
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Ghiorghita CA, Bucatariu F, Dragan ES. Influence of cross-linking in loading/release applications of polyelectrolyte multilayer assemblies. A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110050. [DOI: 10.1016/j.msec.2019.110050] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 07/31/2019] [Accepted: 08/02/2019] [Indexed: 10/26/2022]
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10
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Wei T, Yu Q, Chen H. Responsive and Synergistic Antibacterial Coatings: Fighting against Bacteria in a Smart and Effective Way. Adv Healthc Mater 2019; 8:e1801381. [PMID: 30609261 DOI: 10.1002/adhm.201801381] [Citation(s) in RCA: 195] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/13/2018] [Indexed: 01/12/2023]
Abstract
Antibacterial coatings that eliminate initial bacterial attachment and prevent subsequent biofilm formation are essential in a number of applications, especially implanted medical devices. Although various approaches, including bacteria-repelling and bacteria-killing mechanisms, have been developed, none of them have been entirely successful due to their inherent drawbacks. In recent years, antibacterial coatings that are responsive to the bacterial microenvironment, that possess two or more killing mechanisms, or that have triggered-cleaning capability have emerged as promising solutions for bacterial infection and contamination problems. This review focuses on recent progress on three types of such responsive and synergistic antibacterial coatings, including i) self-defensive antibacterial coatings, which can "turn on" biocidal activity in response to a bacteria-containing microenvironment; ii) synergistic antibacterial coatings, which possess two or more killing mechanisms that interact synergistically to reinforce each other; and iii) smart "kill-and-release" antibacterial coatings, which can switch functionality between bacteria killing and bacteria releasing under a proper stimulus. The design principles and potential applications of these coatings are discussed and a brief perspective on remaining challenges and future research directions is presented.
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Affiliation(s)
- Ting Wei
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 199 Ren'ai Road Suzhou 215123 P. R. China
| | - Qian Yu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 199 Ren'ai Road Suzhou 215123 P. R. China
| | - Hong Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 199 Ren'ai Road Suzhou 215123 P. R. China
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11
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Wei PF, Yuan ZY, Jing W, Guan BB, Liu ZH, Zhang X, Mao JP, Chen DF, Cai Q, Yang XP. Regenerating infected bone defects with osteocompatible microspheres possessing antibacterial activity. Biomater Sci 2019; 7:272-286. [PMID: 30467569 DOI: 10.1039/c8bm00903a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Treatment of infected bone defects still remains a formidable clinical challenge, and the design of bone implants with both anti-bacterial activity and osteogenesis effects is nowadays regarded as a powerful strategy for infection control and bone healing.
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Affiliation(s)
- Peng-Fei Wei
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology
- Beijing 100029
- P.R. China
| | - Zuo-Ying Yuan
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology
- Beijing 100029
- P.R. China
| | - Wei Jing
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology
- Beijing 100029
- P.R. China
| | - Bin-Bin Guan
- Department of Stomatology
- Tianjin Medical University General Hospital
- Tianjin 300052
- P.R. China
| | - Zi-Hao Liu
- Department of Endodontics
- School and Hospital of Stomatology
- Tianjin Medical University
- Tianjin 300070
- P.R. China
| | - Xu Zhang
- Department of Endodontics
- School and Hospital of Stomatology
- Tianjin Medical University
- Tianjin 300070
- P.R. China
| | - Jian-Ping Mao
- Department of Spine Surgery
- Beijing Jishuitan Hospital
- Beijing 100035
- P.R. China
| | - Da-Fu Chen
- Laboratory of Bone Tissue Engineering
- Beijing Research institute of Traumatology and Orthopaedics
- Beijing Jishuitan Hospital
- Beijing 100035
- P.R. China
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology
- Beijing 100029
- P.R. China
| | - Xiao-Ping Yang
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology
- Beijing 100029
- P.R. China
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12
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Morey M, Pandit A. Responsive triggering systems for delivery in chronic wound healing. Adv Drug Deliv Rev 2018; 129:169-193. [PMID: 29501700 DOI: 10.1016/j.addr.2018.02.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/27/2018] [Accepted: 02/26/2018] [Indexed: 12/31/2022]
Abstract
Non-communicable diseases including cancer, cardiovascular disease, diabetes, and neuropathy are chronic in nature. Treatment of these diseases with traditional delivery systems is limited due to lack of site-specificity, non-spatiotemporal release and insufficient doses. Numerous responsive delivery systems which respond to both physiological and external stimuli have been reported in the literature. However, effective strategies incorporating a multifactorial approach are required to control these complex wounds. This can be achieved by fabricating spatiotemporal release systems, multimodal systems or dual/multi-stimuli responsive delivery systems loaded with one or more bioactive components. Critically, these next generation stimuli responsive delivery systems that are at present not feasible are required to treat chronic wounds. This review provides a critical assessment of recent developments in the field of responsive delivery systems, highlighting their limitations and providing a perspective on how these challenges can be overcome.
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Affiliation(s)
- Mangesh Morey
- CÚRAM, Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland.
| | - Abhay Pandit
- CÚRAM, Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland.
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13
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Synthesis of chitosan-based micelles for pH responsive drug release and antibacterial application. Carbohydr Polym 2018; 189:65-71. [PMID: 29580427 DOI: 10.1016/j.carbpol.2018.02.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 02/06/2018] [Accepted: 02/06/2018] [Indexed: 12/19/2022]
Abstract
The over- and inefficient release of antibiotics from common delivery systems causes the development of drug-resistant bacteria. In the present work, methoxy poly(ethylene glycol)-poly(ε-caprolactone)-chitosan/montmorillonite (MPC/MMT) hybrid multilayer films were constructed for bacterial infections and pH-dependent release of the hydrophobic drug triclosan (TCA). The thickness of the (MPC-T/MMT)10 multilayer films was 384.4 ± 26.5 nm, and the TCA loading dosage was 2.4 μg/cm2. Staphylococcus aureus, Escherichia coli and Staphylococcus epidermidis were used in the antibacterial tests. pH responsive TCA release from the prepared multilayer films was examined by measuring the bactericidal activity of the films after immersion in PBS (pH 7.4) or MES (pH 5.5) and zone of inhibition on nutrient agar. In vitro bacterial shake-flask, zone of inhibition and live/dead staining results demonstrated the high sterilization efficiency of the films. Furthermore, cell biocompatibility measurements toward L929 fibroblasts and human lens epithelial cells showed no adverse effects of the multilayer film.
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14
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Li X, Wu B, Chen H, Nan K, Jin Y, Sun L, Wang B. Recent developments in smart antibacterial surfaces to inhibit biofilm formation and bacterial infections. J Mater Chem B 2018; 6:4274-4292. [PMID: 32254504 DOI: 10.1039/c8tb01245h] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Since their development over 70 years, antibiotics are still the most effective strategy to treat bacterial biofilms and infections.
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Affiliation(s)
- Xi Li
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University
- Wenzhou
- China
| | - Biao Wu
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University
- Wenzhou
- China
| | - Hao Chen
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University
- Wenzhou
- China
- Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences
- Wenzhou
| | - Kaihui Nan
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University
- Wenzhou
- China
- Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences
- Wenzhou
| | - Yingying Jin
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University
- Wenzhou
- China
| | - Lin Sun
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University
- Wenzhou
- China
| | - Bailiang Wang
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University
- Wenzhou
- China
- Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences
- Wenzhou
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15
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Wang B, Liu H, Sun L, Jin Y, Ding X, Li L, Ji J, Chen H. Construction of High Drug Loading and Enzymatic Degradable Multilayer Films for Self-Defense Drug Release and Long-Term Biofilm Inhibition. Biomacromolecules 2017; 19:85-93. [PMID: 29191005 DOI: 10.1021/acs.biomac.7b01268] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bailiang Wang
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
- Wenzhou
Institute of Biomaterials and Engineering, Chinese Academy of Sciences, Wenzhou 32500, China
| | - Huihua Liu
- Wenzhou
Institute of Biomaterials and Engineering, Chinese Academy of Sciences, Wenzhou 32500, China
| | - Lin Sun
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Yingying Jin
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Xiaoxu Ding
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Lingli Li
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Jian Ji
- MOE
Key Laboratory of Macromolecule Synthesis and Functionalization, Department
of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hao Chen
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
- Wenzhou
Institute of Biomaterials and Engineering, Chinese Academy of Sciences, Wenzhou 32500, China
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16
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Wang B, Ye Z, Xu Q, Liu H, Lin Q, Chen H, Nan K. Construction of a temperature-responsive terpolymer coating with recyclable bactericidal and self-cleaning antimicrobial properties. Biomater Sci 2016; 4:1731-1741. [PMID: 27782243 DOI: 10.1039/c6bm00587j] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Once a biomedical implant is implanted into a human body, proteins and bacteria can easily colonize the implant, and subsequently, a biofilm can grow on the surface. A biofilm can protect the inhabiting bacteria against macrophages and neutrophil cell attack from the host immune system. The most important issue for artificial antibacterial surfaces is the accumulation of the bacteria corpse after they are killed by contact, which promotes further adhesion of bacteria and biofilm formation. Therefore, we constructed a novel multifunctional bactericidal and fouling release antibacterial surface through the combination of temperature-responsive N-vinylcaprolactam (VCL), hydrophilic 2-methacryloyloxyethyl phosphorylcholine (MPC) and a bactericidal quaternary ammonium salt (2-(dimethylamino)-ethyl methacrylate (DMAEMA+)). The terpolymer coating was prepared through surface-initiated reversible addition-fragmentation chain-transfer (RAFT) polymerization and characterized using water contact angle measurements, atomic force microscopy and spectroscopic ellipsometry. At a temperature above the lower critical solution temperature (LCST), the P(VCL-co-DMAEMA+-co-MPC) terpolymer coating was in a compressed and hydrophobic state with low moisture content, which displayed bactericidal efficiency against Gram-positive Staphylococcus aureus. The coating could be switched into a relatively hydrophilic surface at a temperature below the LCST, which showed self-cleaning properties against both bacteria and bovine serum albumin. The functionalized surface showed good biocompatibility against human lens epithelial cells as evaluated by morphology studies and activity measurements.
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Affiliation(s)
- Bailiang Wang
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China. and Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences, Wenzhou, 32500, China
| | - Zi Ye
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China.
| | - Qingwen Xu
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China.
| | - Huihua Liu
- Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences, Wenzhou, 32500, China
| | - Quankui Lin
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China. and Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences, Wenzhou, 32500, China
| | - Hao Chen
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China. and Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences, Wenzhou, 32500, China
| | - Kaihui Nan
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China. and Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences, Wenzhou, 32500, China
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