1
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Mignon A, Gheysens T, Walraet S, Tack P, Rigole P, Coenye T, Vincze L, Van Vlierberghe S, Dubruel P. Effect of Poly(Vinyl Pyrrolidone) on Iodine Release from Acrylate-Endcapped Urethane-Based Poly(Ethylene Glycol) Hydrogels as Antibacterial Wound Dressing. Macromol Biosci 2024; 24:e2300202. [PMID: 37913549 DOI: 10.1002/mabi.202300202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 09/11/2023] [Indexed: 11/03/2023]
Abstract
Infections are still a major cause of morbidity in burn wounds. Although silver has been used strongly in past centuries as an anti-bacterial, it can lead to allergic reactions, bacterial resistance, and delayed wound healing. Iodine-based antibacterials are becoming an interesting alternative. In this work, the effect of complexation with poly(vinyl pyrrolidone) (PVP) and poly(ethylene oxide) (PEO)-based polymers is explored by using different acrylate-endcapped urethane-based poly(ethylene glycol) (AUP) polymers, varying the molar mass (MM) of the poly(ethylene glycol) (PEG) backbone, with possible addition of PVP. The higher MM AUP outperforms the swelling potential of commercial wound dressings such as Kaltostat, Aquacel Ag, and Hydrosorb and all MM show superior mechanical properties. The addition of iodine to the polymers is compared to Iso-Betadine Tulle (IBT). Interestingly, the addition of PVP does not lead to increased iodine complexation compared to the blank AUP polymers, while all have a prolonged iodine release compared to the IBT, which leads to a burst release. The observed prolonged release also leads to larger inhibition zones during antibacterial tests. Complexing iodine in AUP polymers with or without PVP leads to antimicrobial wound dressings which may hold potential for future application to treat infected wounds.
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Affiliation(s)
- Arn Mignon
- Polymer Chemistry and Biomaterials Group, Center of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-bis, 9000 Gent, Ghent, Belgium
- Smart Polymeric Biomaterials, Biomaterials and Tissue Engineering, Campus Group T, KU, Leuven, Andreas Vesaliusstraat 13, 3000, Leuven, Belgium
| | - Tom Gheysens
- Polymer Chemistry and Biomaterials Group, Center of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-bis, 9000 Gent, Ghent, Belgium
| | - Sander Walraet
- Polymer Chemistry and Biomaterials Group, Center of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-bis, 9000 Gent, Ghent, Belgium
| | - Pieter Tack
- Department of Chemistry, Ghent University, Krijgslaan 281, S12, 9000, Gent, Belgium
| | - Petra Rigole
- Laboratory of Pharmaceutical Microbiology, Ghent University, Ottergemsesteenweg 460, Gent, 9000, Belgium
| | - Tom Coenye
- Laboratory of Pharmaceutical Microbiology, Ghent University, Ottergemsesteenweg 460, Gent, 9000, Belgium
| | - Laszlo Vincze
- Department of Chemistry, Ghent University, Krijgslaan 281, S12, 9000, Gent, Belgium
| | - Sandra Van Vlierberghe
- Polymer Chemistry and Biomaterials Group, Center of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-bis, 9000 Gent, Ghent, Belgium
| | - Peter Dubruel
- Polymer Chemistry and Biomaterials Group, Center of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-bis, 9000 Gent, Ghent, Belgium
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2
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Sun Y, Wang J, Li D, Cheng F. The Recent Progress of the Cellulose-Based Antibacterial Hydrogel. Gels 2024; 10:109. [PMID: 38391439 PMCID: PMC10887981 DOI: 10.3390/gels10020109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/26/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
Cellulose-based antibacterial hydrogel has good biocompatibility, antibacterial performance, biodegradability, and other characteristics. It can be very compatible with human tissues and degradation, while its good water absorption and moisturizing properties can effectively absorb wound exudates, keep the wound moist, and promote wound healing. In this paper, the structural properties, and physical and chemical cross-linking preparation methods of cellulose-based antibacterial hydrogels were discussed in detail, and the application of cellulose-based hydrogels in the antibacterial field was deeply studied. In general, cellulose-based antibacterial hydrogels, as a new type of biomaterial, have shown good potential in antimicrobial properties and have been widely used. However, there are still some challenges, such as optimizing the preparation process and performance parameters, improving the antibacterial and physical properties, broadening the application range, and evaluating safety. However, with the deepening of research and technological progress, it is believed that cellulose-based antibacterial hydrogels will be applied and developed in more fields in the future.
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Affiliation(s)
- Ying Sun
- College of Light Industry and Textile, Qiqihar University, Qiqihar 161006, China
- Cold Area Hemp and Products Engineering Research Center of Ministry of Education, Qiqihar 161006, China
| | - Jiayi Wang
- College of Light Industry and Textile, Qiqihar University, Qiqihar 161006, China
| | - Duanxin Li
- College of Light Industry and Textile, Qiqihar University, Qiqihar 161006, China
- Cold Area Hemp and Products Engineering Research Center of Ministry of Education, Qiqihar 161006, China
| | - Feng Cheng
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
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3
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Ouyang B, Wei D, Wu B, Yan L, Gang H, Cao Y, Chen P, Zhang T, Wang H. In the View of Electrons Transfer and Energy Conversion: The Antimicrobial Activity and Cytotoxicity of Metal-Based Nanomaterials and Their Applications. Small 2024; 20:e2303153. [PMID: 37721195 DOI: 10.1002/smll.202303153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 08/28/2023] [Indexed: 09/19/2023]
Abstract
The global pandemic and excessive use of antibiotics have raised concerns about environmental health, and efforts are being made to develop alternative bactericidal agents for disinfection. Metal-based nanomaterials and their derivatives have emerged as promising candidates for antibacterial agents due to their broad-spectrum antibacterial activity, environmental friendliness, and excellent biocompatibility. However, the reported antibacterial mechanisms of these materials are complex and lack a comprehensive understanding from a coherent perspective. To address this issue, a new perspective is proposed in this review to demonstrate the toxic mechanisms and antibacterial activities of metal-based nanomaterials in terms of energy conversion and electron transfer. First, the antimicrobial mechanisms of different metal-based nanomaterials are discussed, and advanced research progresses are summarized. Then, the biological intelligence applications of these materials, such as biomedical implants, stimuli-responsive electronic devices, and biological monitoring, are concluded based on trappable electrical signals from electron transfer. Finally, current improvement strategies, future challenges, and possible resolutions are outlined to provide new insights into understanding the antimicrobial behaviors of metal-based materials and offer valuable inspiration and instructional suggestions for building future intelligent environmental health.
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Affiliation(s)
- Baixue Ouyang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Dun Wei
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Bichao Wu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Lvji Yan
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Haiying Gang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Yiyun Cao
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Peng Chen
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Tingzheng Zhang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Haiying Wang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
- School of Metallurgy and Environment and Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Central South, University, Changsha, 410083, China
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4
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Pan P, Hu C, Liang A, Liu X, Fang M, Yang S, Zhang Y, Li M. Preparation and Properties of Antibacterial Silk Fibroin Scaffolds. Polymers (Basel) 2023; 15:4581. [PMID: 38231982 PMCID: PMC10708750 DOI: 10.3390/polym15234581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 11/25/2023] [Accepted: 11/28/2023] [Indexed: 01/19/2024] Open
Abstract
The development of a wound dressing with both antibacterial and healing-guiding functions is a major concern in the treatment of open and infected wounds. In this study, poly(hexamethylene biguanide) hydrochloride (PHMB) was loaded into a 3D silk fibroin (SF) scaffold based on electrostatic interactions between PHMB and SF, and PHMB/SF hybrid scaffolds were prepared via freeze-drying. The effects of the PHMB/SF ratio on the antibacterial activity and cytocompatibility of the hybrid scaffold were investigated. The results of an agar disc diffusion test and a bacteriostasis rate examination showed that when the mass ratio of PHMB/SF was greater than 1/100, the scaffold exhibited obvious antibacterial activity against E. coli and S. aureus. L-929 cells were encapsulated in the PHMB/SF scaffolds and cultured in vitro. SEM, laser scanning confocal microscopy, and CCK-8 assay results demonstrated that hybrid scaffolds with a PHMB/SF ratio of less than 2/100 significantly promoted cell adhesion, spreading, and proliferation. In conclusion, a hybrid scaffold with a PHMB/SF ratio of approximately 2/100 not only effectively inhibited bacterial reproduction but also showed good cytocompatibility and is expected to be usable as a functional antibacterial dressing for wound repair.
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Affiliation(s)
| | | | | | | | | | | | | | - Mingzhong Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; (P.P.); (C.H.); (A.L.); (X.L.); (M.F.); (S.Y.); (Y.Z.)
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5
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Ruan H, Bek M, Pandit S, Aulova A, Zhang J, Bjellheim P, Lovmar M, Mijakovic I, Kádár R. Biomimetic Antibacterial Gelatin Hydrogels with Multifunctional Properties for Biomedical Applications. ACS Appl Mater Interfaces 2023; 15:54249-54265. [PMID: 37975260 PMCID: PMC10694820 DOI: 10.1021/acsami.3c10477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/19/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023]
Abstract
A facile novel approach of introducing dopamine and [2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) ammonium hydroxide via dopamine-triggered in situ synthesis into gelatin hydrogels in the presence of ZnSO4 is presented in this study. Remarkably, the resulting hydrogels showed 99.99 and 100% antibacterial efficiency against Gram-positive and Gram-negative bacteria, respectively, making them the highest performing surfaces in their class. Furthermore, the hydrogels showed adhesive properties, self-healing ability, antifreeze properties, electrical conductivity, fatigue resistance, and mechanical stability from -100 to 80 °C. The added multifunctional performance overcomes several disadvantages of gelatin-based hydrogels such as poor mechanical properties and limited thermostability. Overall, the newly developed hydrogels show significant potential for numerous biomedical applications, such as wearable monitoring sensors and antibacterial coatings.
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Affiliation(s)
- Hengzhi Ruan
- Department
of Industrial and Materials Science, Chalmers
University of Technology, 412 96 Göteborg, Sweden
| | - Marko Bek
- Department
of Industrial and Materials Science, Chalmers
University of Technology, 412 96 Göteborg, Sweden
| | - Santosh Pandit
- Department
of Biology and Biological Engineering, Chalmers
University of Technology, 412 96 Göteborg, Sweden
| | - Alexandra Aulova
- Department
of Industrial and Materials Science, Chalmers
University of Technology, 412 96 Göteborg, Sweden
| | - Jian Zhang
- Department
of Biology and Biological Engineering, Chalmers
University of Technology, 412 96 Göteborg, Sweden
| | | | - Martin Lovmar
- Department
of Biology and Biological Engineering, Chalmers
University of Technology, 412 96 Göteborg, Sweden
- Welspect
AB, 431 21 Mölndal, Sweden
| | - Ivan Mijakovic
- Department
of Biology and Biological Engineering, Chalmers
University of Technology, 412 96 Göteborg, Sweden
- The
Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Roland Kádár
- Department
of Industrial and Materials Science, Chalmers
University of Technology, 412 96 Göteborg, Sweden
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6
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Mo F, Lin C, Lu J, Sun D. Integrating Artificial DNAzymes with Natural Enzymes on 2D MOF Hybrid Nanozymes for Enhanced Treatment of Bacteria-Infected Wounds. Small 2023:e2307256. [PMID: 38018326 DOI: 10.1002/smll.202307256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/30/2023] [Indexed: 11/30/2023]
Abstract
Removal of invasive bacteria is critical for proper wound healing. This task is challenging because these bacteria can trigger intense oxidative stress and gradually develop antibiotic resistance. Here, the use of a multienzyme-integrated nanocatalytic platform is reported for efficient bacterial clearance and mitigation of inflammatory responses, constructed by physically adsorbing natural superoxide dismutase (SOD), in situ reduction of gold nanoparticles (Au NPs), and incorporation of a DNAzyme on 2D NiCoCu metal-organic frameworks (DNAzyme/SOD/Au@NiCoCu MOFs, termed DSAM), which can adapt to infected wounds. O2 and H2 O2 replenishment is achieved and alleviated the hypoxic microenvironment using the antioxidant properties of SOD. The H2 O2 produced during the reaction is decomposed by peroxidase (POD)-like activity enhanced by Au NPs and DNAzyme, releasing highly toxic hydroxyl radicals (•OH) to kill the bacteria. In addition, it possesses glutathione peroxidase (GPx)-like activity, which depletes GSH and prevents •OH loss. Systematic antimicrobial tests are performed against bacteria using this multienzyme-integrated nanoplatform. A dual-mode strategy involving natural enzyme-enhanced antioxidant capacity and artificial enzyme-enhanced •OH release to develop an efficient and novel enzyme-integrated therapeutic platform is integrated.
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Affiliation(s)
- Fayin Mo
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China
- Key Specialty of Clinical Pharmacy, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, 510699, China
| | - Chuyan Lin
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China
- Zhongshan City People's Hospital, Zhongshan, 528403, China
| | - Jing Lu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Duanping Sun
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China
- Key Specialty of Clinical Pharmacy, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, 510699, China
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7
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Shishmakova EM, Ivchenko AV, Bolshakova AV, Staltsov MS, Urodkova EK, Grammatikova NE, Rudoy VM, Dement’eva OV. Antibacterial Bionanocomposites Based on Drug-Templated Bifunctional Mesoporous Silica Nanocontainers. Pharmaceutics 2023; 15:2675. [PMID: 38140016 PMCID: PMC10748164 DOI: 10.3390/pharmaceutics15122675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
The creation of antibacterial nanocomposites that provide prolonged release of encapsulated drugs is of great interest for various fields of medicine (dentistry, tissue regeneration, etc.). This article demonstrates the possibility of creating such nanocomposites based on sodium alginate and drug-templated mesoporous silica nanocontainers (MSNs) loaded with two bioactive substances. Herein, we thoroughly study all stages of the process, starting with the synthesis of MSNs using antiseptic micelles containing the hydrophobic drug quercetin and ending with assessing the activity of the resulting composites against various microorganisms. The main emphasis is on studying the quercetin solubilization in antiseptic micelles as well as establishing the relationship between the conditions of MSN synthesis and micelle morphology and capacity. The effect of medium pH on the release rate of encapsulated drugs is also evaluated. It was shown that the MSNs contained large amounts of encapsulated drugs and that the rate of drug unloading depended on the medium pH. The incorporation of such MSNs into the alginate matrix allowed for a prolonged release of the drugs.
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Affiliation(s)
- Elena M. Shishmakova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia; (A.V.I.); (A.V.B.); (E.K.U.); (V.M.R.)
| | - Anastasia V. Ivchenko
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia; (A.V.I.); (A.V.B.); (E.K.U.); (V.M.R.)
| | - Anastasia V. Bolshakova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia; (A.V.I.); (A.V.B.); (E.K.U.); (V.M.R.)
- Department of Chemistry, Moscow State University, 119992 Moscow, Russia
| | - Maxim S. Staltsov
- Division of Nuclear Physics and Technologies, National Research Nuclear University MEPHI, 115409 Moscow, Russia;
| | - Ekaterina K. Urodkova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia; (A.V.I.); (A.V.B.); (E.K.U.); (V.M.R.)
| | | | - Victor M. Rudoy
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia; (A.V.I.); (A.V.B.); (E.K.U.); (V.M.R.)
| | - Olga V. Dement’eva
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia; (A.V.I.); (A.V.B.); (E.K.U.); (V.M.R.)
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Chen Z, Zhao Q, Chen J, Mei T, Wang W, Li M, Wang D. N-Halamine-Based Polypropylene Melt-Blown Nonwoven Fabric with Superhydrophilicity and Antibacterial Properties for Face Masks. Polymers (Basel) 2023; 15:4335. [PMID: 37960015 PMCID: PMC10648686 DOI: 10.3390/polym15214335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/24/2023] [Accepted: 10/29/2023] [Indexed: 11/15/2023] Open
Abstract
Polypropylene melt-blown nonwoven fabric (PP MNF) masks can effectively block pathogens in the environment from entering the human body. However, the adhesion of surviving pathogens to masks poses a risk of human infection. Thus, embedding safe and efficient antibacterial materials is the key to solving pathogen infection. In this study, stable chlorinated poly(methacrylamide-N,N'-methylenebisacrylamide) polypropylene melt-blown nonwoven fabrics (PP-P(MAA-MBAA)-Cl MNFs) have been fabricated by a simple UV cross-link and chlorination process, and the active chlorine content can reach 3500 ppm. The PP-P(MAA-MBAA)-Cl MNFs show excellent hydrophilic and antibacterial properties. The PP-P(MAA-MBAA)-Cl MNFs could kill all bacteria (both Escherichia coli and Staphylococcus aureus) with only 5 min of contact. Therefore, incorporating PP-P(MAA-MBAA)-Cl MNF as a hydrophilic antimicrobial layer into a four-layer PP-based mask holds great potential for enhancing protection and comfort.
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Affiliation(s)
- Zhuo Chen
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
| | - Qinghua Zhao
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
| | - Jiahui Chen
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
- College of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Tao Mei
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
| | - Wenwen Wang
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
| | - Mufang Li
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
| | - Dong Wang
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
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9
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Qiu Y, Zhao T, Lu X, Yuan Q, Gregg S, Nze RP, Xiao B. Ultraviolet Light Responsive N-Nitroso Polymers for Antibacterial Nitric Oxide Delivery. Macromol Rapid Commun 2023; 44:e2300473. [PMID: 37730214 DOI: 10.1002/marc.202300473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/17/2023] [Indexed: 09/22/2023]
Abstract
This study investigates the incorporation of active secondary amine moieties into the polymer backbone by co-polymerizing 2,4,6-tris(chloromethyl)-mesitylene with three diamines, namely 1,4-diaminobutane, m-phenylenediamine, and p-phenylenediamine. This process results in the stabilization of the amine moieties and the subsequently introduced nitroso groups. Charging bioactive nitric oxide (NO) into the polymers is accomplished by converting the amine moieties into N-nitroso groups. The ability of the polymers to store and release NO depends on their structures, particularly the amount of incorporated active secondary amines. With grafting photosensitive N-nitroso groups into the polymers, the derived NO@polymers exhibit photoresponsivity. NO release is completely regulated by adjusting UV light irradiation. These resulting polymeric NO donors demonstrate remarkable bactericidal and bacteriostatic activity, effectively eradicating E. coli bacteria and inhibiting their growth. The findings from this study hold promising implications for combining NO delivery with phototherapy in various medical applications.
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Affiliation(s)
- Yusheng Qiu
- Department School of Chemistry and Chemical Engineering, Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Taoran Zhao
- Key Laboratory of Coal Environmental Pathogenicity and Prevention (Shanxi Medical University), Ministry of Education, Taiyuan, 030001, China
- Shanxi Key Laboratory of Birth Defect and Cell Regeneration, Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, 030001, China
| | - Xin Lu
- Key Laboratory of Coal Environmental Pathogenicity and Prevention (Shanxi Medical University), Ministry of Education, Taiyuan, 030001, China
- Shanxi Key Laboratory of Birth Defect and Cell Regeneration, Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, 030001, China
| | - Qingchun Yuan
- Chemical Engineering and Applied Chemistry, Aston University, Birmingham, B4 7ET, UK
| | - Sharon Gregg
- Department School of Chemistry and Chemical Engineering, Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| | - René-Ponce Nze
- Department School of Chemistry and Chemical Engineering, Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Bo Xiao
- Department School of Chemistry and Chemical Engineering, Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
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10
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Ou H, Qian Y, Yuan L, Li H, Zhang L, Chen S, Zhou M, Yang G, Wang D, Wang Y. Spatial Position Regulation of Cu Single Atom Site Realizes Efficient Nanozyme Photocatalytic Bactericidal Activity. Adv Mater 2023; 35:e2305077. [PMID: 37497609 DOI: 10.1002/adma.202305077] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/17/2023] [Indexed: 07/28/2023]
Abstract
Recently, single-atom nanozymes have made significant progress in the fields of sterilization and treatment, but their catalytic performance as substitutes for natural enzymes and drugs is far from satisfactory. Here, a method is reported to improve enzyme activity by adjusting the spatial position of a single-atom site on the nanoplatforms. Two types of Cu single-atom site nanozymes are synthesized in the interlayer (CuL /PHI) and in-plane (CuP /PHI) of poly (heptazine imide) (PHI) through different synthesis pathways. Experimental and theoretical analysis indicates that the interlayer position of PHI can effectively adjust the coordination number, coordination bond length, and electronic structure of Cu single atoms compared to the in-plane position, thereby promoting photoinduced electron migration and O2 activation, enabling effective generate reactive oxygen species (ROS). Under visible light irradiation, the photocatalytic bactericidal activity of CuL /PHI against aureus is ≈100%, achieving the same antibacterial effect as antibiotics, after 10 min of low-dose light exposure and 2 h of incubation.
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Affiliation(s)
- Honghui Ou
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Yuping Qian
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Lintian Yuan
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - He Li
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Ludan Zhang
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Shenghua Chen
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Min Zhou
- Institute for Energy Research, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Guidong Yang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yuguang Wang
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
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He X, Shi P, Wu T, Yu B, Cong H, Shen Y. Preparation and Application of High-Efficiency, Antibacterial, and Antiviral PET-PTHP Fibers. ACS Appl Mater Interfaces 2023; 15:48660-48672. [PMID: 37797239 DOI: 10.1021/acsami.3c10788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Transmission through the respiratory tract is one of the most important ways for bacteria and viruses to infect the human body; the use of high-performance antibacterial and antiviral protective equipment is the most effective way to prevent the spread of respiratory diseases. However, at present, most personal protective equipment lacks the ability to kill pathogens. In this paper, a kind of polytetrahydropyrimidine-polyethylene terephthalate functional fiber (PET-PTHP fibers) with highly sustained antibacterial and antiviral properties was prepared. The inactivation rate of the fibers against Staphylococcus aureus and Escherichia coli was as high as 99.99%, and the antibacterial time was more than 72 h. The fibers have an obvious destructive effect on lentiviruses and can reduce the infection rate of lentiviruses in BxPC-3 cells from 25.4 to 9.7%. The cytotoxicity test, cell live/dead staining test, and cell proliferation test all confirmed that PET-PTHP fibers have no obvious cytotoxicity and good cytocompatibility. By applying the functional fibers to the inner layer of the masks, a new type of mask with adsorption, filtration, and killing properties against pathogens was prepared. The filtration efficiency of the new masks was 99.3%, and the pressure drop was 104 Pa. The new masks have excellent air permeability and filtration effect, meet the practical application conditions, and are of grade A; therefore, these masks provide medical protection as well as kill pathogens at the same time, further reducing the risk of human infection.
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Affiliation(s)
- Xiangqiong He
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Pengbao Shi
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Taixia Wu
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Bing Yu
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
| | - Hailin Cong
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China
| | - Youqing Shen
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Center for Bionanoengineering, and Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
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12
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Jian G, Li D, Ying Q, Chen X, Zhai Q, Wang S, Mei L, Cannon RD, Ji P, Liu W, Wang H, Chen T. Dual Photo-Enhanced Interpenetrating Network Hydrogel with Biophysical and Biochemical Signals for Infected Bone Defect Healing. Adv Healthc Mater 2023; 12:e2300469. [PMID: 37462929 DOI: 10.1002/adhm.202300469] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/19/2023] [Indexed: 07/29/2023]
Abstract
The healing of infected bone defects (IBD) is a complex physiological process involving a series of spatially and temporally overlapping events, including pathogen clearance, immunological modulation, vascularization, and osteogenesis. Based on the theory that bone healing is regulated by both biochemical and biophysical signals, in this study, a copper doped bioglass (CuBGs)/methacryloyl-modified gelatin nanoparticle (MA-GNPs)/methacrylated silk fibroin (SilMA) hybrid hydrogel is developed to promote IBD healing. This hybrid hydrogel demonstrates a dual-photocrosslinked interpenetrating network mechanism, wherein the photocrosslinked SilMA as the main network ensures structural integrity, and the photocrosslinked MA-GNPs colloidal network increases strength and dissipates loading forces. In an IBD model, the hydrogel exhibits excellent biophysical characteristics, such as adhesion, adaptation to irregular defect shapes, and in situ physical reinforcement. At the same time, by sequentially releasing bioactive ions such as Cu2+ , Ca2+ , and Si2+ ions from CuBGs on demand, the hydrogel spatiotemporally coordinates antibacterial, immunomodulatory and bone remodeling events, efficiently removing infection and accelerating bone repair without the use of antibiotics or exogenous recombinant proteins. Therefore, the hybrid hydrogel can be used as a simple and effective method for the treatment of IBD.
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Affiliation(s)
- Guangyu Jian
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, P. R. China
| | - Dize Li
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, P. R. China
| | - Qiwei Ying
- Key State Laboratory of Fine Chemicals, School of Bioengineering, Dalian University of Technology, Dalian, 116023, P. R. China
| | - Xu Chen
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, P. R. China
| | - Qiming Zhai
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, P. R. China
| | - Si Wang
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, P. R. China
| | - Li Mei
- Department of Oral Sciences, Sir John Walsh Research Institute Faculty of Dentistry, University of Otago, Dunedin, 9054, New Zealand
| | - Richard D Cannon
- Department of Oral Sciences, Sir John Walsh Research Institute Faculty of Dentistry, University of Otago, Dunedin, 9054, New Zealand
| | - Ping Ji
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, P. R. China
| | - Wenzhao Liu
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, P. R. China
| | - Huanan Wang
- Key State Laboratory of Fine Chemicals, School of Bioengineering, Dalian University of Technology, Dalian, 116023, P. R. China
| | - Tao Chen
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, P. R. China
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13
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Yuan R, Zhang Y, Liao L, Ge Y, Li W, Zhi Q. Biomineralization-Inspired Anti-Caries Strategy Based on Multifunctional Nanogels as Mineral Feedstock Carriers. Int J Nanomedicine 2023; 18:4933-4947. [PMID: 37693886 PMCID: PMC10488770 DOI: 10.2147/ijn.s418465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/28/2023] [Indexed: 09/12/2023] Open
Abstract
Background Dentin caries remains a significant public concern, with no clinically viable material that effectively combines remineralization and antimicrobial properties. To address this issue, this study focused on the development of a bio-inspired multifunctional nanogel with both antibacterial and biomineralization properties. Methods First, p(NIPAm-co-DMC) (PNPDC) copolymers were synthesized from N-isopropylacrylamide (NIPAm) and 2-methacryloyloxyethyl-trimethyl ammonium chloride (DMC). Subsequently, PNPDC was combined with γ-polyglutamic acid (γ-PGA) through physical cross-linking to form nanogels. These nanogels served as templates for the mineralization of calcium phosphate (Cap), resulting in Cap-loaded PNPDC/PGA nanogels. The nanogels were characterized using various techniques, including TEM, particle tracking analysis, XRD, and FTIR. The release properties of ions were also assessed. In addition, the antibacterial properties of the Cap-loaded PNPDC/PGA nanogels were evaluated using the broth microdilution method and a biofilm formation assay. The remineralization effects were examined on both demineralized dentin and type I collagen in vitro. Results PNPDC/PGA nanogels were successfully synthesized and loaded with Cap. The diameter of the Cap-loaded PNPDC/PGA nanogels was measured as 196.5 nm at 25°C and 162.3 nm at 37°C. These Cap-loaded nanogels released Ca2+ and PO43- ions quickly, effectively blocking dental tubules with a depth of 10 μm and promoting the remineralization of demineralized dentin within 7 days. Additionally, they facilitated the heavy intrafibrillar mineralization of type I collagen within 3 days. Moreover, the Cap-loaded nanogels exhibited MIC50 and MIC90 values of 12.5 and 50 mg/mL against Streptococcus mutans, respectively, with an MBC value of 100 mg/mL. At a concentration of 50 mg/mL, the Cap-loaded nanogels also demonstrated potent inhibitory effects on biofilm formation by Streptococcus mutans while maintaining good biocompatibility. Conclusion Cap-loaded PNPDC/PGA nanogels are a multifunctional biomimetic system with antibacterial and dentin remineralization effects. This strategy of using antibacterial nanogels as mineral feedstock carriers offered fresh insight into the clinical management of caries.
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Affiliation(s)
- Rui Yuan
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Yuwen Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Liqiong Liao
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, Guangdong, 510515, People’s Republic of China
| | - Yige Ge
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Weichang Li
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Qinghui Zhi
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
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14
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Zhao WB, Liu KK, Wang Y, Li FK, Guo R, Song SY, Shan CX. Antibacterial Carbon Dots: Mechanisms, Design, and Applications. Adv Healthc Mater 2023; 12:e2300324. [PMID: 37178318 DOI: 10.1002/adhm.202300324] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/15/2023] [Indexed: 05/15/2023]
Abstract
The increase in antibiotic resistance promotes the situation of developing new antibiotics at the forefront, while the development of non-antibiotic pharmaceuticals is equally significant. In the post-antibiotic era, nanomaterials with high antibacterial efficiency and no drug resistance make them attractive candidates for antibacterial materials. Carbon dots (CDs), as a kind of carbon-based zero-dimensional nanomaterial, are attracting much attention for their multifunctional properties. The abundant surface states, tunable photoexcited states, and excellent photo-electron transfer properties make sterilization of CDs feasible and are gradually emerging in the antibacterial field. This review provides comprehensive insights into the recent development of CDs in the antibacterial field. The topics include mechanisms, design, and optimization processes, and their potential practical applications are also highlighted, such as treatment of bacterial infections, against bacterial biofilms, antibacterial surfaces, food preservation, and bacteria imaging and detection. Meanwhile, the challenges and outlook of CDs in the antibacterial field are discussed and proposed.
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Affiliation(s)
- Wen-Bo Zhao
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Kai-Kai Liu
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Yong Wang
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Fu-Kui Li
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Rui Guo
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Shi-Yu Song
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Chong-Xin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
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15
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Li J, Wang C, Wu S, Cui Z, Zheng Y, Li Z, Jiang H, Zhu S, Liu X. Superlattice Nanofilm on a Touchscreen for Photoexcited Bacteria and Virus Killing by Tuning Electronic Defects in the Heterointerface. Adv Mater 2023; 35:e2300380. [PMID: 36917684 DOI: 10.1002/adma.202300380] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/01/2023] [Indexed: 06/02/2023]
Abstract
Currently, the global COVID-19 pandemic has significantly increased the public attention toward the spread of pathogenic viruses and bacteria on various high-frequency touch surfaces. Developing a self-disinfecting coating on a touchscreen is an urgent and meaningful task. Superlattice materials are among the most promising photocatalysts owing to their efficient charge transfer in abundant heterointerfaces. However, excess electronic defects at the heterointerfaces result in the loss of substantial amounts of photogenerated charge carrier. In this study, a ZnOFe2 O3 superlattice nanofilm is designed via atomic layer deposition for photocatalytic bactericidal and virucidal touchscreen. Additionally, electronic defects in the superlattice heterointerface are engineered. Photogenerated electrons and holes will be rapidly separated and transferred into ZnO and Fe2 O3 across the heterointerfaces owing to the formation of ZnO, FeO, and ZnFe covalent bonds at the heterointerfaces, where ZnO and Fe2 O3 function as electronic donors and receptors, respectively. The high generation capacity of reactive oxygen species results in a high antibacterial and antiviral efficacy (>90%) even against drug-resistant bacteria and H1N1 viruses under simulated solar or low-power LED light irradiation. Meanwhile, this superlattice nanofilm on a touchscreen shows excellent light transmission (>90%), abrasion resistance (106 times the round-trip friction), and biocompatibility.
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Affiliation(s)
- Jun Li
- School of Health Science & Biomedical Engineering, Hebei University of Technology, Xiping Avenue 5340, Beichen District, Tianjin, 300401, P. R. China
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, P. R. China
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, Hubei University, Wuhan, 430062, P. R. China
- School of Materials Science & Engineering, Peking University, Beijing, 100871, P. R. China
| | - Chaofeng Wang
- School of Health Science & Biomedical Engineering, Hebei University of Technology, Xiping Avenue 5340, Beichen District, Tianjin, 300401, P. R. China
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, Hubei University, Wuhan, 430062, P. R. China
- School of Materials Science & Engineering, Peking University, Beijing, 100871, P. R. China
| | - Shuilin Wu
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, P. R. China
- School of Materials Science & Engineering, Peking University, Beijing, 100871, P. R. China
| | - Zhenduo Cui
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, P. R. China
| | - Yufeng Zheng
- School of Materials Science & Engineering, Peking University, Beijing, 100871, P. R. China
| | - Zhaoyang Li
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, P. R. China
| | - Hui Jiang
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, P. R. China
| | - Shengli Zhu
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, P. R. China
| | - Xiangmei Liu
- School of Health Science & Biomedical Engineering, Hebei University of Technology, Xiping Avenue 5340, Beichen District, Tianjin, 300401, P. R. China
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, Hubei University, Wuhan, 430062, P. R. China
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16
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Lagos KJ, García D, Cuadrado CF, de Souza LM, Mezzacappo NF, da Silva AP, Inada N, Bagnato V, Romero MP. Carbon dots: Types, preparation, and their boosted antibacterial activity by photoactivation. Current status and future perspectives. Wiley Interdiscip Rev Nanomed Nanobiotechnol 2023:e1887. [PMID: 37100045 DOI: 10.1002/wnan.1887] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 02/14/2023] [Accepted: 03/03/2023] [Indexed: 04/28/2023]
Abstract
Carbon dots (CDs) correspond to carbon-based materials (CBM) with sizes usually below 10 nm. These nanomaterials exhibit attractive properties such us low toxicity, good stability, and high conductivity, which have promoted their thorough study over the past two decades. The current review describes four types of CDs: carbon quantum dots (CQDs), graphene quantum dots (GQDs), carbon nanodots (CNDs), and carbonized polymers dots (CPDs), together with the state of the art of the main routes for their preparation, either by "top-down" or "bottom-up" approaches. Moreover, among the various usages of CDs within biomedicine, we have focused on their application as a novel class of broad-spectrum antibacterial agents, concretely, owing their photoactivation capability that triggers an enhanced antibacterial property. Our work presents the recent advances in this field addressing CDs, their composites and hybrids, applied as photosensitizers (PS), and photothermal agents (PA) within antibacterial strategies such as photodynamic therapy (PDT), photothermal therapy (PTT), and synchronic PDT/PTT. Furthermore, we discuss the prospects for the possible future development of large-scale preparation of CDs, and the potential for these nanomaterials to be employed in applications to combat other pathogens harmful to human health. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease.
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Affiliation(s)
- Karina J Lagos
- Department of Materials, Escuela Politécnica Nacional (EPN), Quito, Ecuador
| | - David García
- Department of Materials, Escuela Politécnica Nacional (EPN), Quito, Ecuador
| | | | | | | | - Ana Paula da Silva
- São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, Brazil
| | - Natalia Inada
- São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, Brazil
| | - Vanderlei Bagnato
- São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, Brazil
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Alegrete N, Sousa SR, Peleteiro B, Monteiro FJ, Gutierres M. Local Antibiotic Delivery Ceramic Bone Substitutes for the Treatment of Infected Bone Cavities and Bone Regeneration: A Systematic Review on What We Have Learned from Animal Models. Materials (Basel) 2023; 16:2387. [PMID: 36984267 PMCID: PMC10056339 DOI: 10.3390/ma16062387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
AIMS the focus of this study is to evaluate if the combination of an antibiotic with a ceramic biomaterial is effective in treating osteomyelitis in an infected animal model and to define which model and protocol are best suited for in vivo experiments of local bone infection treatment. METHODS a systematic review was carried out based on PRISMA statement guidelines. A PubMed search was conducted to find original papers on animal models of bone infections using local antibiotic delivery systems with the characteristics of bone substitutes. Articles without a control group, differing from the experimental group only by the addition of antibiotics to the bone substitute, were excluded. RESULTS a total of 1185 records were retrieved, and after a three-step selection, 34 papers were included. Six manuscripts studied the effect of antibiotic-loaded biomaterials on bone infection prevention. Five articles studied infection in the presence of foreign bodies. In all but one, the combination of an antibiotic with bioceramic bone substitutes tended to prevent or cure bone infection while promoting biomaterial osteointegration. CONCLUSIONS this systematic review shows that the combination of antibiotics with bioceramic bone substitutes may be appropriate to treat bone infection when applied locally. The variability of the animal models, time to develop an infection, antibiotic used, way of carrying and releasing antibiotics, type of ceramic material, and endpoints limits the conclusions on the ideal therapy, enhancing the need for consistent models and guidelines to develop an adequate combination of material and antimicrobial agent leading to an effective human application.
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Affiliation(s)
- Nuno Alegrete
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, R. Alfredo Allen 208, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, R. Alfredo Allen 208, 4200-135 Porto, Portugal
- FMUP-Faculdade de Medicina, Universidade do Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
| | - Susana R. Sousa
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, R. Alfredo Allen 208, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, R. Alfredo Allen 208, 4200-135 Porto, Portugal
- ISEP-Instituto Superior de Engenharia do Porto, IPP - Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida 431, 4200-072 Porto, Portugal
| | - Bárbara Peleteiro
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas 135, 4050-600 Porto, Portugal
- Departamento de Ciências da Saúde Pública e Forenses e Educação Médica, Faculdade de Medicina, Universidade do Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
- ITR-Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional, Rua das Taipas 135, 4050-600 Porto, Portugal
| | - Fernando J. Monteiro
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, R. Alfredo Allen 208, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, R. Alfredo Allen 208, 4200-135 Porto, Portugal
- FEUP-Faculdade de Engenharia, Universidade do Porto, R. Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Manuel Gutierres
- FMUP-Faculdade de Medicina, Universidade do Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
- CHUSJ-Centro Hospitalar Universitário S. João, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
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18
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Gao X, Zhou Y, Gu J, Liu X, Zhang Z. Construction and Activity Study of a Natural Antibacterial Patch Based on Natural Active Substance-Green Porous Structures. Molecules 2023; 28. [PMID: 36770989 DOI: 10.3390/molecules28031319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/18/2023] [Accepted: 01/21/2023] [Indexed: 01/31/2023] Open
Abstract
Bacterial infections are a serious threat to human health, and the rapid emergence of bacterial resistance caused by the abuse of antibiotics exacerbates the seriousness of this problem. Effectively utilizing natural products to construct new antimicrobial strategies is regarded as a promising way to suppress the rapid development of bacterial resistance. In this paper, we fabricated a new type of natural antibacterial patch by using a natural active substance (allicin) as an antibacterial agent and the porous structure of the white pulp of pomelo peel as a scaffold. The antibacterial activity and mechanisms were systematically investigated by using various technologies, including the bacteriostatic circle, plate counting, fluorescence staining, and a scanning electron microscope. Both gram-positive and negative bacteria can be effectively killed by this patch. Moreover, this natural antibacterial patch also showed significant anti-skin infection activity. This study provides a green approach for constructing efficient antibacterial patches.
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19
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Yu L, Sun Y, Niu Y, Zhang P, Hu J, Chen Z, Zhang G, Xu Y. Microenvironment-Adaptive Nanozyme for Accelerating Drug-Resistant Bacteria-Infected Wound Healing. Adv Healthc Mater 2022; 12:e2202596. [PMID: 36579570 DOI: 10.1002/adhm.202202596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/20/2022] [Indexed: 12/30/2022]
Abstract
Reactive oxygen species (ROS) are favorable for antibacterial infection but their overproduction results in serious inflammatory response and aggravates the hypoxic state of the wound tissue, which is detrimental to healing stages of proliferation and remodeling. Here, an atomic-dispersion Fe-doped oxygen-deficient molybdenum oxide MoO3- X (ADFM) bifunctional nanozyme, featuring implanted peroxidase-like and enhanced catalase-like activity, is developed for decomposing H2 O2 into strongly oxidizing hydroxyl radicals (•OH) for prevention of bacterial infection and into plentiful O2 for healing stages. Therein, the introduction of Fe into MoO3- X primarily produces an asymmetric electron density difference by elongating the bond length between metal atoms, synchronously stabilizing adsorption of •OH and weakening the adsorption of O2 . ADFM also shows unimaginably high aqueous dispersity and pH-adaptive ROS regulation in the wound microenvironment, both of which are favorable for ADFM to fully exert enzyme-like activity for timely antibacterial and efficient wound-healing action. ADFM thus achieves efficient healing of drug-resistant bacteria-infected wounds in vivo, at an ultralow dosage of 30 µg mL-1 against 106 CFU mL-1 extended spectrum β-lactamases-producing Escherichia coli, exhibiting a wound-healing efficiency of ≈10 mm2 per day, which sets a benchmark among these noble-metal-free nanozyme-based wound-healing agents.
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Affiliation(s)
- Lei Yu
- Institute of Biomedical Engineering, College of Life Science, Qingdao University, Qingdao, 266071, P. R. China
| | - Yiping Sun
- Institute of Biomedical Engineering, College of Life Science, Qingdao University, Qingdao, 266071, P. R. China
| | - Yusheng Niu
- Institute of Biomedical Engineering, College of Life Science, Qingdao University, Qingdao, 266071, P. R. China
| | - Pengfei Zhang
- Institute of Biomedical Engineering, College of Life Science, Qingdao University, Qingdao, 266071, P. R. China
| | - Jun Hu
- School of Chemical Engineering, Northwest University, Xi'an, 710069, P. R. China
| | - Zhong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Gong Zhang
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, P. R. China
| | - Yuanhong Xu
- Institute of Biomedical Engineering, College of Life Science, Qingdao University, Qingdao, 266071, P. R. China
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20
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Ivanauskas R, Ancutienė I, Milašienė D, Ivanauskas A, Bronušienė A. Effect of Reducing Agent on Characteristics and Antibacterial Activity of Copper-Containing Particles in Textile Materials. Materials (Basel) 2022; 15:7623. [PMID: 36363214 PMCID: PMC9657411 DOI: 10.3390/ma15217623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
Textile materials modified with copper-containing particles have antibacterial and antiviral properties that have prospects for use in healthcare. In the study, textile materials were saturated with copper-containing particles in their entire material volume by the absorption/diffusion method. The antibacterial properties of modified textile materials were confirmed by their inhibitory effect on Staphylococcus aureus, a Gram-positive bacterium that spreads predominantly through the respiratory tract. For the modification, ordinary textile materials of various origins and fiber structures were used. Technological conditions and compositions of modifying solutions were established, as well as the most suitable textile materials for modification. To assess the morphological and physical characteristics of copper-containing particles and the textile materials themselves, X-ray diffraction, a scanning electron microscope, and an energy-dispersive X-ray spectrum were used. In modified textile samples, XRD data showed the presence of crystalline phases of copper (Cu) and copper (I) oxide (Cu2O). On the grounds of the SEM/EDS analysis, the saturation of textile materials with copper-containing particles depends on the structure of the textile materials and the origins of the fibers included in their composition, as well as the modification conditions and the copper precursor.
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Affiliation(s)
- Remigijus Ivanauskas
- Faculty of Chemical Technology, Department of Physical and Inorganic Chemistry, Kaunas University of Technology, 44249 Kaunas, Lithuania
| | - Ingrida Ancutienė
- Faculty of Chemical Technology, Department of Physical and Inorganic Chemistry, Kaunas University of Technology, 44249 Kaunas, Lithuania
| | - Daiva Milašienė
- Faculty of Mechanical Engineering and Design, Department of Production Engineering, Kaunas University of Technology, 44249 Kaunas, Lithuania
| | - Algimantas Ivanauskas
- Faculty of Chemical Technology, Department of Physical and Inorganic Chemistry, Kaunas University of Technology, 44249 Kaunas, Lithuania
| | - Asta Bronušienė
- Faculty of Chemical Technology, Department of Physical and Inorganic Chemistry, Kaunas University of Technology, 44249 Kaunas, Lithuania
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21
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Li L, Cheng X, Huang Q, Cheng Y, Xiao J, Hu J. Sprayable Antibacterial Hydrogels by Simply Mixing of Aminoglycoside Antibiotics and Cellulose Nanocrystals for the Treatment of Infected Wounds. Adv Healthc Mater 2022; 11:e2201286. [PMID: 35933585 DOI: 10.1002/adhm.202201286] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/29/2022] [Indexed: 01/28/2023]
Abstract
Antibiotic hydrogels with sustained release profiles are recognized as promising candidates to treat local bacterial infections with reduced adverse effects. However, it still remains challenging for clinical translation of these antibiotic gels due to safety concern of gel ingredients, complicated synthesis and fabrication procedures, and unsatisfactory rheological properties for practical uses in vivo. Herein, the preparation of a type of sprayable hydrogels by ionic interactions between aminoglycosides and cellulose nanocrystals (CNC) is proposed for the treatment of local infections such as bacteria-infected wounds. The CNC-based hydrogels are applicable for all kinds of aminoglycoside antibiotics and show excellent gel stability and rheological behaviors such as shear thinning and fast self-healing, allowing facile administration by injection or spraying. The hydrogels exhibit efficient antibacterial activity both in vitro and in vivo, and accelerate bacteria-infected wounds by spraying on the infected area. The proposed hydrogels by simply mixing of aminoglycosides and CNC provide great prospects for clinical translation in the treatment of local infections.
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Affiliation(s)
- Lin Li
- Department of Orthopedics Oncology, Changzheng Hospital, Navy Medical University, Shanghai, 200003, China
| | - Xuejing Cheng
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Quan Huang
- Department of Orthopedics Oncology, Changzheng Hospital, Navy Medical University, Shanghai, 200003, China
| | - Yiyun Cheng
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Jianru Xiao
- Department of Orthopedics Oncology, Changzheng Hospital, Navy Medical University, Shanghai, 200003, China
| | - Jingjing Hu
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, China
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22
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López-Fernández AM, Moisescu EE, de Llanos R, Galindo F. Development of a Polymeric Film Entrapping Rose Bengal and Iodide Anion for the Light-Induced Generation and Release of Bactericidal Hydrogen Peroxide. Int J Mol Sci 2022; 23:ijms231710162. [PMID: 36077560 PMCID: PMC9478968 DOI: 10.3390/ijms231710162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
A series of poly(2-hydroxyethyl methacrylate) (PHEMA) thin films entrapping photosensitizer Rose Bengal (RB) and tetrabutylammonium iodide (TBAI) have been synthetized. The materials have been characterized by means of Thermogravimetric Analysis (TGA), Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) and UV-vis Absorption spectroscopy. Irradiation of the materials with white light led to the generation of several bactericidal species, including singlet oxygen (1O2), triiodide anion (I3-) and hydrogen peroxide (H2O2). 1O2 production was demonstrated spectroscopically by reaction with the chemical trap 2,2'-(anthracene-9,10-diylbis(methylene))dimalonic acid (ABDA). In addition, the reaction of iodide anion with 1O2 yielded I3- inside the polymeric matrix. This reaction is accompanied by the formation of H2O2, which diffuses out the polymeric matrix. Generation of both I3- and H2O2 was demonstrated spectroscopically (directly in the case of triiodide by the absorption at 360 nm and indirectly for H2O2 using the xylenol orange test). A series of photodynamic inactivation assays were conducted with the synthesized polymers against Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa. Complete eradication (7 log10 CFU/mL) of both bacteria occurred after only 5 min of white light irradiation (400-700 nm; total energy dose 24 J/cm2) of the polymer containing both RB and TBAI. The control polymer without embedded iodide (only RB) showed only marginal reductions of ca. 0.5 log10 CFU/mL. The main novelty of the present investigation is the generation of three bactericidal species (1O2, I3- and H2O2) at the same time using a single polymeric material containing all the elements needed to produce such a bactericidal cocktail, although the most relevant antimicrobial activity is shown by H2O2. This experimental approach avoids multistep protocols involving a final step of addition of I-, as described previously for other assays in solution.
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Affiliation(s)
- Ana M. López-Fernández
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071 Castellón, Spain
| | - Evelina E. Moisescu
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071 Castellón, Spain
| | - Rosa de Llanos
- Unidad Predepartamental de Medicina, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071 Castellón, Spain
- Correspondence: (R.d.L.); (F.G.)
| | - Francisco Galindo
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071 Castellón, Spain
- Correspondence: (R.d.L.); (F.G.)
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23
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Liu X, Wu M, Wang M, Hu Q, Liu J, Duan Y, Liu B. Direct Synthesis of Photosensitizable Bacterial Cellulose as Engineered Living Material for Skin Wound Repair. Adv Mater 2022; 34:e2109010. [PMID: 35076119 DOI: 10.1002/adma.202109010] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/08/2022] [Indexed: 06/14/2023]
Abstract
Living materials based on bacterial cellulose (BC) represent a natural and promising candidate for wound dressing. Both physical adsorption and chemical methods have been applied to BC for realizing antibacterial function. However, effective and long-lasting incorporation of bactericidal moieties to BC remains challenging. Herein, a Komagataeibacter sucrofermentans-based direct synthetic method to fabricate photosensitizer-grafted BC through in situ bacterial metabolism in the presence of TPEPy-modified glucose is explored. The results verify that the direct biosynthesis method is efficient and convenient to endow BC with outstanding fluorescence and light-triggered photodynamic bactericidal activity for skin wound repair. This work presents a new approach to fabricate eco-friendly and active wound dressing with light-controlled bactericidal activity by microbial metabolism. The successful modification of the glucose carbon source of microorganisms also offers insights for biosyntheses of other living materials through microbial metabolism.
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Affiliation(s)
- Xingang Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Min Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
| | - Meng Wang
- Department of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital, Zhejiang University, School of Medicine, Hangzhou, Zhejiang, 310003, China
| | - Qida Hu
- Department of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital, Zhejiang University, School of Medicine, Hangzhou, Zhejiang, 310003, China
| | - Jingjing Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Yukun Duan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
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24
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Yang M, Qiu S, Coy E, Li S, Załęski K, Zhang Y, Pan H, Wang G. NIR-Responsive TiO 2 Biometasurfaces: Toward In Situ Photodynamic Antibacterial Therapy for Biomedical Implants. Adv Mater 2022; 34:e2106314. [PMID: 34847272 DOI: 10.1002/adma.202106314] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 11/26/2021] [Indexed: 06/13/2023]
Abstract
Implant-related microbial infection is a challenging clinical problem, and its treatment requires efficient eradication of the biofilm from the implant surface. Near-infrared (NIR)-responsive strategies are proposed as an emerging efficient antibacterial therapy. However, the utilization of photosensitizers or photocatalytic/photothermal nanomaterials in the available approach likely induces high potential risks of interfacial deterioration and biosafety compromise. Herein, a TiO2 /TiO2- x metasurface with potent NIR-responsive antibacterial activity is produced on a Ti alloy implant by a newly invented topochemical conversion-based alkaline-acid bidirectional hydrothermal method (aaBH). Electromagnetic simulations prove that NIR absorption and near-field distribution of the metasurface can be tuned by the dimension and arrangement of the nanostructural unit. Promising antibacterial efficacy is proved by both in vitro and in vivo tests, with low-power NIR irradiation for 10 min. Besides, the designed nanostructure in the metasurface itself also shows excellence in enhancing the adhesion-related gene expression of human gingival fibroblasts that are exposed to 10 min of NIR irradiation, proving the potent nanostructure-induced biological effects. This work provides a biosafe and upscalable metasurfacing approach with extraordinary capacity of manipulating light adsorption, photocatalysis, and biological properties.
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Affiliation(s)
- Minggang Yang
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong, 518055, China
| | - Shi Qiu
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong, 518055, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Emerson Coy
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, Poznan, 61-614, Poland
| | - Shuaijie Li
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong, 518055, China
- Department of Orthopedic, Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Karol Załęski
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, Poznan, 61-614, Poland
| | - Yao Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Haobo Pan
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong, 518055, China
| | - Guocheng Wang
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong, 518055, China
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25
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Feng X, Lei J, Ma L, Ouyang Q, Zeng Y, Liang H, Lei C, Li G, Tan L, Liu X, Yang C. Ultrasonic Interfacial Engineering of MoS 2 -Modified Zn Single-Atom Catalysts for Efficient Osteomyelitis Sonodynamic Ion Therapy. Small 2022; 18:e2105775. [PMID: 34889522 DOI: 10.1002/smll.202105775] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/12/2021] [Indexed: 05/23/2023]
Abstract
Osteomyelitis is considered as the most serious bone infection, which can lead to the bone destruction or fatal sepsis. Clinical treatments through frequent antibiotics administration and surgical debridement bring inevitable side effects including drug-resistance and disfigurements. It is urgent to develop an antibiotics-free and rapid strategy to treat osteomyelitis. Herein, a bifunctional sonosensitizer that consists of porphyrin-like Zn single-atom catalysts (g-ZnN4 ) and MoS2 quantum dots is developed, which exhibits excellent sonodynamic antibacterial efficiency and osteogenic ability. It is found that the construction of heterogeneous interfaces of g-ZnN4 -MoS2 fully activates the adsorbed O2 due to the increased interface charge transfer, enhanced spin-flip, and reduced activation energy of O2 . The generated 1 O2 can kill methicillin-resistant Staphylococcus aureus (MRSA) with an antibacterial efficiency of 99.58% under 20 min of ultrasound (US) irradiation. The Zn single atoms immobilized in g-ZnN4 can be released steadily in the form of Zn2+ for 28 days within safe concentration, realizing the great osteoinductive ability of such a sonosensitizer. For the treatment of MRSA-infected osteomyelitis, the inflammation and bone loss can be significantly suppressed through sonodynamic ion therapy. This work provides another strategy for developing high efficiency sonosensitizer through ultrasound interfacial engineering.
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Affiliation(s)
- Xiaobo Feng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jie Lei
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Liang Ma
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Qunle Ouyang
- Biomedical Materials Engineering Research Center, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China
| | - Yuxuan Zeng
- Biomedical Materials Engineering Research Center, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China
| | - Hang Liang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chunchi Lei
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Gaocai Li
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lei Tan
- Biomedical Materials Engineering Research Center, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China
| | - Xiangmei Liu
- School of Life Science and Health Engineering, Hebei University of Technology, Xiping Avenue 5340, Beichen District, Tianjin, 300401, China
| | - Cao Yang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
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26
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Zhang W, Zhou Y, Fan Y, Cao R, Xu Y, Weng Z, Ye J, He C, Zhu Y, Wang X. Metal-Organic-Framework-Based Hydrogen-Release Platform for Multieffective Helicobacter Pylori Targeting Therapy and Intestinal Flora Protective Capabilities. Adv Mater 2022; 34:e2105738. [PMID: 34655499 DOI: 10.1002/adma.202105738] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Helicobacter pylori (H. pylori) infection is the leading cause of chronic gastritis, peptic ulcer, and gastric cancer. Antibiotics, as traditional method for eliminating H. pylori, have no targeting effect, which causes serious bacterial resistance and gut dysbacteriosis. Moreover, antibiotics can hardly address hyperactive inflammatory response or damaged gastric mucosal barrier caused by H. pylori infection. Here, a pH-responsive metal-organic framework hydrogen-generation nanoparticle (Pd(H) @ ZIF-8) is reported, which is encapsulated with ascorbate palmitate (AP) hydrogel. Both in vitro and in vivo experiments demonstrate that the outer AP hydrogel can target and adhere to the inflammatory site through electrostatic interactions, and is then hydrolyzed by matrix metalloproteinase (MMP) enriching in inflammatory sites. The released Pd(H) @ ZIF-8 nanoparticles are further decomposed by gastric acid to generate zinc ions (Zn2+ ) and hydrogen, thus effectively killing H. pylori, alleviating inflammation and restoring impaired gastric mucosa simultaneously. Unexpectedly, this metal-organic framework hydrogen-generation platform (Pd(H) @ ZIF-8 @ AP) also has an effect toward avoiding the imbalance of intestinal flora, which thus provides a more precise, effective, and healthy strategy for the treatment of H. pylori infection.
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Affiliation(s)
- Wei Zhang
- College of Chemistry of Nanchang University, Nanchang University, Nanchang, 330088, China
| | - Yanan Zhou
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330088, China
| | - Yating Fan
- The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330088, China
| | - Rui Cao
- The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330088, China
| | - Yingying Xu
- The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330088, China
| | - Zhenzhen Weng
- College of Chemistry of Nanchang University, Nanchang University, Nanchang, 330088, China
| | - Jing Ye
- The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330088, China
| | - Cong He
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330088, China
| | - Yin Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330088, China
| | - Xiaolei Wang
- College of Chemistry of Nanchang University, Nanchang University, Nanchang, 330088, China
- The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330088, China
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27
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Han MC, He HW, Kong WK, Dong K, Wang BY, Yan X, Wang LM, Ning X. High-performance Electret and Antibacterial Polypropylene Meltblown Nonwoven Materials Doped with Boehmite and ZnO Nanoparticles for Air Filtration. Fibers Polym 2022; 23:1947-1955. [PMCID: PMC9112261 DOI: 10.1007/s12221-022-4786-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 11/23/2021] [Accepted: 11/30/2021] [Indexed: 05/24/2023]
Abstract
The current pandemic caused by COVID-19 has intensively triggered the development of high-performance air filters. Polypropylene (PP) is widely used as the raw material of meltblown nonwoven materials and is the core layer in air filters, such as masks. In this study, an electret PP meltblown nonwoven with antibacterial activity was developed, and nano boehmite (AlOOH) and nano-ZnO were employed as electret and antibacterial agents, respectively. AlOOH (0.5–2.0 wt%) and ZnO (1.0 wt%) were doped into the PP matrix using a twin-screw extruder, and the resulting masterbatches were applied as raw materials to produce nonwoven materials via a meltblown process. The as-prepared nonwoven samples were characterized by means of SEM, IR and DSC/TG. After corona charging, the filtration efficiency was determined by a filtration tester, charge decay was measured by an infrared electrostatic tester, and the antibacterial properties were evaluated (evaluation method: AATCC 100–2012). A dosage of AlOOH greater than 1.0 wt% endowed the nonwoven material with high filtration efficiency, and 1.0 wt% ZnO brought about antibacterial activity. Corona charging was an effective means to charge the nonwoven electret, and the charges were quicker to decay in air than in a sealed bag. The as-prepared meltblown nonwoven filter is a remarkably promising filter for air filtration.
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Affiliation(s)
- Ming-Chao Han
- Shandong Center for Engineered Nonwovens, Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, Shandong China
| | - Hong-Wei He
- Shandong Center for Engineered Nonwovens, Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, Shandong China
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266071, Shandong China
| | - Wei-Kang Kong
- Shandong Center for Engineered Nonwovens, Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, Shandong China
| | - Kun Dong
- Shandong Center for Engineered Nonwovens, Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, Shandong China
| | - Bang-Ying Wang
- Shandong Center for Engineered Nonwovens, Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, Shandong China
| | - Xu Yan
- Shandong Center for Engineered Nonwovens, Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, Shandong China
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266071, Shandong China
| | - Li-Ming Wang
- Shandong Center for Engineered Nonwovens, Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, Shandong China
| | - Xin Ning
- Shandong Center for Engineered Nonwovens, Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao, 266071, Shandong China
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266071, Shandong China
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28
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Toci G, Olgiati F, Pallavicini P, Diaz Fernandez YA, De Vita L, Dacarro G, Grisoli P, Taglietti A. Gold Nanostars Embedded in PDMS Films: A Photothermal Material for Antibacterial Applications. Nanomaterials (Basel) 2021; 11:3252. [PMID: 34947603 DOI: 10.3390/nano11123252] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 12/14/2022]
Abstract
Bacteria infections and related biofilms growth on surfaces of medical devices are a serious threat to human health. Controlled hyperthermia caused by photothermal effects can be used to kill bacteria and counteract biofilms formation. Embedding of plasmonic nano-objects like gold nanostars (GNS), able to give an intense photothermal effect when irradiated in the NIR, can be a smart way to functionalize a transparent and biocompatible material like polydimethylsiloxane (PDMS). This process enables bacteria destruction on surfaces of PDMS-made medical surfaces, an action which, in principle, can also be exploited in subcutaneous devices. We prepared stable and reproducible thin PDMS films containing controllable quantities of GNS, enabling a temperature increase that can reach more than 40 degrees. The hyperthermia exerted by this hybrid material generates an effective thermal microbicidal effect, killing bacteria with a near infrared (NIR) laser source with irradiance values that are safe for skin.
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29
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Yang Y, Huang K, Wang M, Wang Q, Chang H, Liang Y, Wang Q, Zhao J, Tang T, Yang S. Ubiquitination Flow Repressors: Enhancing Wound Healing of Infectious Diabetic Ulcers through Stabilization of Polyubiquitinated Hypoxia-Inducible Factor-1α by Theranostic Nitric Oxide Nanogenerators. Adv Mater 2021; 33:e2103593. [PMID: 34553427 DOI: 10.1002/adma.202103593] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/12/2021] [Indexed: 05/19/2023]
Abstract
Current treatments for diabetic ulcers (DUs) remain unsatisfactory due to the risk of bacterial infection and impaired angiogenesis during the healing process. The increased degradation of polyubiquitinated hypoxia-inducible factor-1α (HIF-1α) compromises wound healing efficacy. Therefore, the maintenance of HIF-1α protein stability might help treat DU. Nitric oxide (NO) is an intrinsic biological messenger that functions as a ubiquitination flow repressor and antibacterial agent; however, its clinical application in DU treatment is hindered by the difficulty in controlling NO release. Here, an intelligent near-infrared (NIR)-triggered NO nanogenerator (SNP@MOF-UCNP@ssPDA-Cy7/IR786s, abbreviated as SNP@UCM) is presented. SNP@UCM represses ubiquitination-mediated proteasomal degradation of HIF-1α by inhibiting its interaction with E3 ubiquitin ligases under NIR irradiation. Increased HIF-1α expression in endothelial cells by SNP@UCM enhances angiogenesis in wound sites, promoting vascular endothelial growth factor (VEGF) secretion and cell proliferation and migration. SNP@UCM also enables early detection of wound infections and ROS-mediated killing of bacteria. The potential clinical utility of SNP@UCM is further demonstrated in infected full-thickness DU model under NIR irradiation. SNP@UCM is the first reported HIF-1α-stabilizing advanced nanomaterial, and further materials engineering might offer a facile, mechanism-based method for clinical DU management.
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Affiliation(s)
- Yiqi Yang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Kai Huang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Minqi Wang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Qishan Wang
- Departments of Pharmacy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Haishuang Chang
- Shanghai Institute of Precision Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Yakun Liang
- Shanghai Institute of Precision Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Qing Wang
- Department of Stomatology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, 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, 200125, China
| | - 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, 200125, China
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Li W, Thian ES, Wang M, Wang Z, Ren L. Surface Design for Antibacterial Materials: From Fundamentals to Advanced Strategies. Adv Sci (Weinh) 2021; 8:e2100368. [PMID: 34351704 PMCID: PMC8498904 DOI: 10.1002/advs.202100368] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/27/2021] [Indexed: 05/14/2023]
Abstract
Healthcare-acquired infections as well as increasing antimicrobial resistance have become an urgent global challenge, thus smart alternative solutions are needed to tackle bacterial infections. Antibacterial materials in biomedical applications and hospital hygiene have attracted great interest, in particular, the emergence of surface design strategies offer an effective alternative to antibiotics, thereby preventing the possible development of bacterial resistance. In this review, recent progress on advanced surface modifications to prevent bacterial infections are addressed comprehensively, starting with the key factors against bacterial adhesion, followed by varying strategies that can inhibit biofilm formation effectively. Furthermore, "super antibacterial systems" through pre-treatment defense and targeted bactericidal system, are proposed with increasing evidence of clinical potential. Finally, the advantages and future challenges of surface strategies to resist healthcare-associated infections are discussed, with promising prospects of developing novel antimicrobial materials.
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Affiliation(s)
- Wenlong Li
- Department of BiomaterialsState Key Lab of Physical Chemistry of Solid SurfaceCollege of MaterialsXiamen UniversityXiamen361005P. R. China
| | - Eng San Thian
- Department of Mechanical EngineeringNational University of SingaporeSingapore117576Singapore
| | - Miao Wang
- Department of BiomaterialsState Key Lab of Physical Chemistry of Solid SurfaceCollege of MaterialsXiamen UniversityXiamen361005P. R. China
| | - Zuyong Wang
- College of Materials Science and EngineeringHunan UniversityChangsha410082P. R. China
| | - Lei Ren
- Department of BiomaterialsState Key Lab of Physical Chemistry of Solid SurfaceCollege of MaterialsXiamen UniversityXiamen361005P. R. China
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31
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He W, Wu Z, Wu Y, Cai Y, Cui Z, Yu B, Hong Y. Construction of Antimicrobial Material-Loaded Porous Tricalcium Phosphate Beads for Treatment of Bone Infections. ACS Appl Bio Mater 2021; 4:6280-6293. [PMID: 35006920 DOI: 10.1021/acsabm.1c00565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Due to low success rates of antibiotic therapy in most osteomyelitis diseases, continuous efforts have been made to fabricate local delivery systems with high antimicrobial effects. Here, we reported a kind of ε-polylysine(PL)/Ag-loaded porous tricalcium phosphate (TCP) bead instead of antibiotics as local delivery systems for the treatment of Staphylococcus aureus-caused osteomyelitis. Such local delivery systems were prepared by the fabrication of porous TCP beads at first and then the loading of Ag and PL in turn into porous TCP beads via in situ Ag-doping and layer-by-layer methods. In vitro experiments demonstrated that the release of PL and Ag was controllable. Especially, the release dosage of Ag could be controlled to be less than 0.05 ppm 28 days later. The surface coating of PL improved the cytocompatibility and antibacterial activity of local delivery systems. In vivo experiments demonstrated that the Ag/PL-loaded porous TCP beads displayed strong antibacterial activity and good osteoconductivity, and the combination of Ag and PL was better than the use of single antibacterial materials to treat S. aureus-caused osteomyelitis. The implantation of Ag into the infected marrow had low toxicity because Ag has been integrated into the TCP grains, which could be absorbed in marrow. Therefore, the Ag/PL-loaded porous TCP beads presented potential for treating osteomyelitis, especially sequestrum-debrided osteomyelitis.
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Affiliation(s)
- Wenchao He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
| | - Zhen Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
| | - Yanmei Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
| | - Yuyan Cai
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
| | - Zhuang Cui
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, P. R. China
| | - Bin Yu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, P. R. China.,Guangdong Provincial Key Laboratory of Bone and Cartilage Regeneration Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, P. R. China
| | - Youliang Hong
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
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Romero MP, Alves F, Stringasci MD, Buzzá HH, Ciol H, Inada NM, Bagnato VS. One-Pot Microwave-Assisted Synthesis of Carbon Dots and in vivo and in vitro Antimicrobial Photodynamic Applications. Front Microbiol 2021; 12:662149. [PMID: 34234756 PMCID: PMC8255795 DOI: 10.3389/fmicb.2021.662149] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 05/12/2021] [Indexed: 11/13/2022] Open
Abstract
Carbon-based photosensitizers are more attractive than the other ones based on their low cost, high stability, broadband of light absorption, tunable emission spectra, high quantum yield, water solubility, high resistance to metabolic degradation, and selective delivery. These properties allow multiple applications in the field of biology and medicine. The present study evaluated in vitro and in vivo the antimicrobial photodynamic effect of a one-pot microwave produced C-DOTS based on citric acid. The in vitro assays assessed the effectiveness of illuminated C-DOTS (C-DOTS + light) against Staphylococcus aureus suspension and biofilm. The concentrations of 6.9 and 13.8 mg/mL of C-DOTS and light doses of 20 and 40 J/cm2 were able to reduce significantly the microorganisms. Based on these parameters and results, the in vivo experiments were conducted in mice, evaluating this treatment on wounds contaminated with S. aureus. The viability test showed that C-DOTS-mediated photodynamic inactivation reduced 104 log of the bacteria present on the skin lesions. These results, altogether, showed that antibacterial photodynamic therapy using C-DOTS is a promising and viable treatment for Gram-positive bacteria-infected wounds.
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Affiliation(s)
- María Paulina Romero
- São Carlos Institute of Physics, University of São Paulo, São Carlos, Brazil
- Departamento de Materiales, Facultad de Ingeniería Mecánica, Escuela Politécnica Nacional, Quito, Ecuador
| | - Fernanda Alves
- São Carlos Institute of Physics, University of São Paulo, São Carlos, Brazil
| | | | - Hilde Harb Buzzá
- São Carlos Institute of Physics, University of São Paulo, São Carlos, Brazil
| | - Heloísa Ciol
- São Carlos Institute of Physics, University of São Paulo, São Carlos, Brazil
| | | | - Vanderlei Salvador Bagnato
- São Carlos Institute of Physics, University of São Paulo, São Carlos, Brazil
- Hagler Fellow, Texas A&M University, College Station, TX, United States
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33
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Grisoli P, De Vita L, Milanese C, Taglietti A, Diaz Fernandez Y, Bouzin M, D'Alfonso L, Sironi L, Rossi S, Vigani B, Sperandeo P, Polissi A, Pallavicini P. PVA Films with Mixed Silver Nanoparticles and Gold Nanostars for Intrinsic and Photothermal Antibacterial Action. Nanomaterials (Basel) 2021; 11:1387. [PMID: 34070273 DOI: 10.3390/nano11061387] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/18/2021] [Accepted: 05/21/2021] [Indexed: 02/07/2023]
Abstract
PVA films with embedded either silver nanoparticles (AgNP), NIR-absorbing photothermal gold nanostars (GNS), or mixed AgNP+GNS were prepared in this research. The optimal conditions to obtain stable AgNP+GNS films with intact, long lasting photothermal GNS were obtained. These require coating of GNS with a thiolated polyethylene glycol (PEG) terminated with a carboxylic acid function, acting as reticulant in the film formation. In the mixed AgNP+GNS films, the total noble metal content is <0.15% w/w and in the Ag films < 0.025% w/w. The slow but prolonged Ag+ release from film-embedded AgNP (8–11% of total Ag released after 24 h, in the mixed films) results in a very strong microbicidal effect against planktonic Escherichia coli and Staphylococcus aureus bacterial strains (the release of Au from films is instead negligible). Beside this intrinsic effect, the mixed films also exert an on-demand, fast hyperthermal bactericidal action, switched on by NIR laser irradiation (800 nm, i.e., inside the biotransparent window) of the localized surface plasmon resonance (LSPR) absorption bands of GNS. Temperature increases of 30 °C are obtained using irradiances as low as 0.27 W/cm2. Moreover, 80–90% death on both strains was observed in bacteria in contact with the GNS-containing films, after 30 min of irradiation. Finally, the biocompatibility of all films was verified on human fibroblasts, finding negligible viability decrease in all cases.
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Li R, Yang G, Wang Y, Liu L, Wang Q, Wang G, Ouyang X. Synthesis of antibacterial polyether biguanide curing agent and its cured antibacterial epoxy resin. Des Monomers Polym 2021; 24:63-72. [PMID: 33795960 PMCID: PMC7993382 DOI: 10.1080/15685551.2021.1900025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 03/04/2021] [Indexed: 12/05/2022] Open
Abstract
At present, bacteria continue to threaten human health, and the resistance of bacteria to antibiotics continues to increase, so the development of new antibacterial agents and antibacterial materials is increasingly important to ensure human health. In this paper, three polyether biguanide compounds with high antibacterial properties were synthesized by reacting polyetheramine T403 with o-tolylbiguanide, m-tolylbiguanide and p-tolylbiguanide (o-TTB, m-TTB and p-TTB), respectively. The antimicrobial performance of polyether biguanide against E. coli and S. aureus was evaluated using a minimum inhibitory concentration method, and the results showed that the synthesized polyether biguanide exhibited efficient and broad-spectrum antimicrobial effects. Among them, o-tolyl biguanide derivative o-TTB showed the best antimicrobial performance, with minimum inhibitory concentrations of 20 and 15 μg/mL against E. coli and S. aureus, respectively. Then, epoxy resin E51 was cured using the obtained TTB as a curing agent to prepare an epoxy resin with antibacterial properties. The inhibition of the growth of S. aureus by the cured o-TTB/E51 resin was investigated by incubating the cured epoxy resin with bacteria, and the results showed that the cured resin had a significant inhibitory effect on the growth of bacteria. The non-isothermal curing kinetics of the o-TTB/E51 system were investigated by differential scanning calorimetry (DSC) to determine the optimized curing reaction temperature, curing kinetic parameters and curing kinetics equation.
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Affiliation(s)
- Rui Li
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Guoxing Yang
- Daqing Petrochemical Research Center, Petrochemical Research Institute, China National Petroleum Corporation, Daqing, China
| | - Yudan Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Lijia Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Qiang Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Guan Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
- Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin, China
| | - Xiao Ouyang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
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Liu YC, Lee YT, Huang TC, Lin GS, Chen YW, Lee BS, Tung KL. In Vitro Bioactivity and Antibacterial Activity of Strontium-, Magnesium-, and Zinc-Multidoped Hydroxyapatite Porous Coatings Applied via Atmospheric Plasma Spraying. ACS Appl Bio Mater 2021; 4:2523-2533. [PMID: 35014370 DOI: 10.1021/acsabm.0c01535] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The beneficial effects of Sr- and Mg-doped hydroxyapatite (HAp) on osteoblast proliferation and bone regeneration have been investigated in the past, and the antibacterial ability of Zn ions is well known. However, HAp coatings doped with these three elements via thermal spraying have not yet been investigated. In this study, HAp powder was synthesized at different pH values (4, 6, 8, and 10) and calcined at different temperatures (200, 400, 600, 800, and 1000 °C) to obtain HAp with the highest purity. Subsequently, strontium-, magnesium-, and zinc-doped HAp powders were synthesized at the optimal pH value and calcination temperature. The HAp powder was then coated onto Ti disks using atmospheric plasma spraying (APS) or vapor-induced pore-forming atmospheric plasma spraying (VIPF-APS) techniques at different working currents (350, 400, and 450 A) and spraying distances (10 and 15 cm). X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy equipped with energy-dispersive spectroscopy were used for material characterization to determine the optimal parameters. With these optimal coating parameters, HAp, Zn-HAp, SrMg-HAp, and ZnSrMg-HAp powders were deposited onto the Ti disks using VIPF-APS and named HAp-Ti, Zn-HAp-Ti, SrMg-HAp-Ti, and ZnSrMg-HAp-Ti, respectively. The in vitro bioactivity of these four groups was evaluated using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and alkaline phosphatase (ALPase) activity assay. Besides, the antibacterial activities against Prevotella nigrescens, Porphyromonas gingivalis, and Fusobacterium nucleatum were assessed. The results showed that the purity of HAp synthesized at pH 10 and 800 °C was 98.40%. A porous coating without cracks was obtained at a 10 cm spraying distance and 400 A working current using VIPF-APS. SrMg-HAp-Ti and ZnSrMg-HAp-Ti resulted in higher osteoblast proliferation and ALPase activity than the control. Moreover, both Zn-HAp-Ti and ZnSrMg-HAp-Ti exhibited antibacterial activity against the three bacteria. Therefore, ZnSrMg-HAp has potential as a coating for biomedical materials due to its ability to reduce bacterial infection and enhance osseointegration.
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Affiliation(s)
- Yu-Cheng Liu
- Advanced Research Center for Green Materials Science and Technology and Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Ying-Te Lee
- Graduate Institute of Oral Biology, School of Dentistry, and National Taiwan University Hospital, National Taiwan University, Taipei 106, Taiwan
| | - Tse-Chiang Huang
- Advanced Research Center for Green Materials Science and Technology and Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Geng-Sheng Lin
- Advanced Research Center for Green Materials Science and Technology and Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Yi-Wen Chen
- Graduate Institute of Clinical Dentistry, School of Dentistry, and National Taiwan University Hospital, National Taiwan University, Taipei 106, Taiwan
| | - Bor-Shiunn Lee
- Graduate Institute of Oral Biology, School of Dentistry, and National Taiwan University Hospital, National Taiwan University, Taipei 106, Taiwan
| | - Kuo-Lun Tung
- Advanced Research Center for Green Materials Science and Technology and Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan.,Center for Biotechnology, National Taiwan University, Taipei 10617, Taiwan
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36
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Guan W, Tan L, Liu X, Cui Z, Zheng Y, Yeung KWK, Zheng D, Liang Y, Li Z, Zhu S, Wang X, Wu S. Ultrasonic Interfacial Engineering of Red Phosphorous-Metal for Eradicating MRSA Infection Effectively. Adv Mater 2021; 33:e2006047. [PMID: 33349987 DOI: 10.1002/adma.202006047] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/11/2020] [Indexed: 05/18/2023]
Abstract
Sonodynamic therapy (SDT) is considered to be a potential treatment for various diseases including cancers and bacterial infections due to its deep penetration ability and biosafety, but its SDT efficiency is limited by the hypoxia environment of deep tissues. This study proposes creating a potential solution, sonothermal therapy, by developing the ultrasonic interfacial engineering of metal-red phosphorus (RP), which has an obviously improved sonothermal ability of more than 20 °C elevation under 25 min of continuous ultrasound (US) excitation as compared to metal alone. The underlying mechanism is that the mechanical energy of the US activates the motion of the interfacial electrons. US-induced electron motion in the RP can efficiently transfer the US energy into phonons in the forms of heat and lattice vibrations, resulting in a stronger US absorption of metal-RP. Unlike the nonspecific heating of the cavitation effect induced by US, titanium-RP can be heated in situ when the US penetrates through 2.5 cm of pork tissue. In addition, through a sonothermal treatment in vivo, bone infection induced by multidrug-resistant Staphylococcus aureus (MRSA) is successfully eliminated in under 20 min of US without tissue damage. This work provides a new strategy for combating MRSA by strong sonothermal therapy through US interfacial engineering.
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Affiliation(s)
- Wei Guan
- Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China
| | - Lei Tan
- Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China
| | - Xiangmei Liu
- Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China
| | - Zhenduo Cui
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
| | - Yufeng Zheng
- College of Engineering, State Key Laboratory for Turbulence and Complex System, Department of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Kelvin Wai Kwok Yeung
- Department of Orthopaedics & Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, 999077, China
| | - Dong Zheng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yanqin Liang
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
| | - Zhaoyang Li
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
| | - Shengli Zhu
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
| | - Xianbao Wang
- Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China
| | - Shuilin Wu
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
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Fan Y, Namata F, Erlandsson J, Zhang Y, Wågberg L, Malkoch M. Self-Assembled Polyester Dendrimer/Cellulose Nanofibril Hydrogels with Extraordinary Antibacterial Activity. Pharmaceutics 2020; 12:E1139. [PMID: 33255607 DOI: 10.3390/pharmaceutics12121139] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 11/24/2022] Open
Abstract
Cationic dendrimers are intriguing materials that can be used as antibacterial materials; however, they display significant cytotoxicity towards diverse cell lines at high generations or high doses, which limits their applications in biomedical fields. In order to decrease the cytotoxicity, a series of biocompatible hybrid hydrogels based on cationic dendrimers and carboxylated cellulose nanofibrils were easily synthesized by non-covalent self-assembly under physiological conditions without external stimuli. The cationic dendrimers from generation 2 (G2) to generation 4 (G4) based on trimethylolpronane (TMP) and 2,2-bis (methylol)propionic acid (bis-MPA) were synthesized through fluoride promoted esterification chemistry (FPE chemistry). FTIR was used to show the presence of the cationic dendrimers within the hybrid hydrogels, and the distribution of the cationic dendrimers was even verified using elemental analysis of nitrogen content. The hybrid hydrogels formed from G3 and G4 showed 100% killing efficiency towards Escherichia coli (E. coli), Staphylococcus aureus (S. aureus) and Pseudomonas aeruginosa (P. aeruginosa) with bacterial concentrations ranging from 105 CFU/mL to 107 CFU/mL. Remarkably, the hybrid hydrogels also showed good biocompatibility most probably due to the incorporation of the biocompatible CNFs that slowed down the release of the cationic dendrimers from the hybrid hydrogels, hence showing great promise as an antibacterial material for biomedical applications.
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Munir MU, Ahmed A, Usman M, Salman S. Recent Advances in Nanotechnology-Aided Materials in Combating Microbial Resistance and Functioning as Antibiotics Substitutes. Int J Nanomedicine 2020; 15:7329-7358. [PMID: 33116477 PMCID: PMC7539234 DOI: 10.2147/ijn.s265934] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 08/18/2020] [Indexed: 12/16/2022] Open
Abstract
The ongoing escalation of drug-resistant bacteria creates the leading challenges for human health. Current predictions show that deaths due to bacterial illness will be more in comparison to cancer in 2050. Irrational use of antibiotics, prolonged regimen and using as a prophylactic treatment for various infections are leading cause of microbial resistance. It is an emerging approach to introduce evolving nanomaterials (NMs) as a base of antibacterial therapy to overcome the bacterial resistance pattern. NMs can implement several bactericidal ways and turn into a challenge for bacteria to survive and develop resistance against NMs. All the pathways depend on the surface chemistry, shape, core material and size of NMs. Because of these reasons, NMs based stuff shows a critical role in advancing the treatment efficiency by interacting with the cellular system of bacteria and functioned as an antibiotic substitute. We divided this review into two sections. The first part highlights the development of microbial resistance to antibiotics and their mechanisms. The second section details the NMs mechanisms to combat antibiotic resistance. In short, we try to summarize the advances in NMs role to deal with microbial resistance and giving solution as antibiotics substitute.
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Affiliation(s)
- Muhammad Usman Munir
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Aljouf 72388, Saudi Arabia.,Nanobiotech Group, Industrial Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Arsalan Ahmed
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan
| | - Muhammad Usman
- Department of Physics, Khawaja Fareed University of Engineering and Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Sajal Salman
- Faculty of Pharmacy, University of Central Punjab, Lahore 54000, Pakistan
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Abstract
Bacterial resistance to antibiotics is one of the biggest problems in the modern world. The prevention of bacterial spreading from hospitals to the community and vice versa is an issue we have to deal with. This review presents a vast potential of contemporary high-pressure techniques in the design of materials with antimicrobial activity. Scientists from all over the world came up with ideas on how to exploit extraordinary properties of supercritical fluids in the production of advantageous materials in an environmentally friendly way. The review summarizes reported methods and results.
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Affiliation(s)
- Irena Zizovic
- Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
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40
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Guo L, Wang H, Wang Y, Liu F, Feng L. Organic Polymer Nanoparticles with Primary Ammonium Salt as Potent Antibacterial Nanomaterials. ACS Appl Mater Interfaces 2020; 12:21254-21262. [PMID: 31909588 DOI: 10.1021/acsami.9b19921] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bacterial infections induced by drug-resistant strains have become a global crisis. A membrane-disrupted mechanism is considered as an effective way to kill bacteria with little chance to trigger drug resistance. It is necessary to explore and develop new materials based on the membrane-disrupted mechanism to combat bacterial resistance. Here we report the design of organic nanoparticles based on a polymer (PDCP) as highly effective inhibition and bactericidal reagents. The PDCP is devised to have a hydrophobic skeleton and hydrophilic side chain modified with protonated primary amines, which could self-assemble to form organic nanoparticles (PDCP-NPs). By taking advantage of the large surface to volume ratio of nanoparticles, the synthesized PDCP-NPs have enriched positive charges and multiple membrane-binding sites. Research results display that PDCP-NPs have highly potent antibacterial activity in vitro and vivo, especially for Gram-negative bacteria with low toxicity against mammalian cells. This work design will inspire researchers to develop more membrane-disrupted bactericide and advance the applications of organic nanoparticles in the antibacterial area.
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Affiliation(s)
- Lixia Guo
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P.R. China
| | - Haoping Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P.R. China
| | - Yunxia Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P.R. China
| | - Feng Liu
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P.R. China
| | - Liheng Feng
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P.R. China
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Basnett P, Marcello E, Lukasiewicz B, Nigmatullin R, Paxinou A, Ahmad MH, Gurumayum B, Roy I. Antimicrobial Materials with Lime Oil and a Poly(3-hydroxyalkanoate) Produced via Valorisation of Sugar Cane Molasses. J Funct Biomater 2020; 11:jfb11020024. [PMID: 32290046 PMCID: PMC7353574 DOI: 10.3390/jfb11020024] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/04/2020] [Accepted: 04/06/2020] [Indexed: 12/20/2022] Open
Abstract
A medium chain-length polyhydroxyalkanoate (PHA) was produced by Pseudomonas mendocina CH50 using a cheap carbon substrate, sugarcane molasses. A PHA yield of 14.2% dry cell weight was achieved. Chemical analysis confirmed that the polymer produced was a medium chain-length PHA, a copolymer of 3-hydroxyoctanoate and 3-hydroxydecanoate, P(3HO-co-3HD). Lime oil, an essential oil with known antimicrobial activity, was used as an additive to P(3HO-co-3HD) to confer antibacterial properties to this biodegradable polymer. The incorporation of lime oil induced a slight decrease in crystallinity of P(3HO-co-3HD) films. The antibacterial properties of lime oil were investigated using ISO 20776 against Staphylococcus aureus 6538P and Escherichia coli 8739, showing a higher activity against the Gram-positive bacteria. The higher activity of the oil against S. aureus 6538P defined the higher efficiency of loaded polymer films against this strain. The effect of storage on the antimicrobial properties of the loaded films was investigated. After one-year storage, the content of lime oil in the films decreased, causing a reduction of the antimicrobial activity of the materials produced. However, the films still possessed antibacterial activity against S. aureus 6538P.
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Affiliation(s)
- Pooja Basnett
- Faculty of Science and Technology, University of Westminster, London W1W 6UW, UK; (P.B.); (E.M.); (B.L.); (R.N.); (A.P.); (M.H.A.); (B.G.)
| | - Elena Marcello
- Faculty of Science and Technology, University of Westminster, London W1W 6UW, UK; (P.B.); (E.M.); (B.L.); (R.N.); (A.P.); (M.H.A.); (B.G.)
| | - Barbara Lukasiewicz
- Faculty of Science and Technology, University of Westminster, London W1W 6UW, UK; (P.B.); (E.M.); (B.L.); (R.N.); (A.P.); (M.H.A.); (B.G.)
| | - Rinat Nigmatullin
- Faculty of Science and Technology, University of Westminster, London W1W 6UW, UK; (P.B.); (E.M.); (B.L.); (R.N.); (A.P.); (M.H.A.); (B.G.)
- Bristol Composites Institute (ACCIS), University of Bristol, Bristol BS8 1TR, UK
| | - Alexandra Paxinou
- Faculty of Science and Technology, University of Westminster, London W1W 6UW, UK; (P.B.); (E.M.); (B.L.); (R.N.); (A.P.); (M.H.A.); (B.G.)
| | - Muhammad Haseeb Ahmad
- Faculty of Science and Technology, University of Westminster, London W1W 6UW, UK; (P.B.); (E.M.); (B.L.); (R.N.); (A.P.); (M.H.A.); (B.G.)
| | - Bhavana Gurumayum
- Faculty of Science and Technology, University of Westminster, London W1W 6UW, UK; (P.B.); (E.M.); (B.L.); (R.N.); (A.P.); (M.H.A.); (B.G.)
| | - Ipsita Roy
- Department of Material Science and Engineering, Faculty of Engineering, University of Sheffield, Sheffield S1 3JD, UK
- Correspondence: ; Tel.: +44-114-2225962
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Zhang W, Wei L, Xu R, Lin G, Xin H, Lv Z, Qian H, Shi H. Evaluation of the Antibacterial Material Production in the Fermentation of Bacillus amyloliquefaciens-9 from Whitespotted Bamboo Shark ( Chiloscyllium plagiosum). Mar Drugs 2020; 18:md18020119. [PMID: 32085415 PMCID: PMC7073760 DOI: 10.3390/md18020119] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/05/2020] [Accepted: 02/13/2020] [Indexed: 12/30/2022] Open
Abstract
Bacillus amyloliquefaciens-9 (GBacillus-9), which is isolated from the intestinal tract of the white-spotted bamboo shark (Chiloscyllium plagiosum), can secrete potential antibacterial materials, such as β-1,3-1,4-glucanase and some antimicrobial peptides. However, the low fermentation production has hindered the development of GBacillus-9 as biological additives. In this study, the Plackett–Burman design and response surface methodology were used to optimize the fermentation conditions in a shake flask to obtain a higher yield and antibacterial activity of GBacillus-9. On the basis of the data from medium screening, M9 medium was selected as the basic medium for fermentation. The data from the single-factor experiment showed that sucrose had the highest antibacterial activity among the 10 carbon sources. The Plackett–Burman design identified sucrose, NH4Cl, and MgSO4 as the major variables altering antibacterial activity. The optimal concentrations of these compounds to enhance antibacterial activity were assessed using the central composite design. Data showed that sucrose, NH4Cl, and MgSO4 had the highest antibacterial activities at concentrations of 64.8, 1.84, and 0.08 g L−1, respectively. The data also showed that the optimal fermentation conditions for the antibacterial material production of GBacillus-9 were as follows: Inoculum volume of 5%, initial pH of 7.0, temperature of 36 °C, rotating speed of 180 rpm, and fermentation time of 10 h. The optimal fermentation medium and conditions achieved to improve the yield of antibacterial materials for GBacillus-9 can enhance the process of developing biological additives derived from GBacillus-9.
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Affiliation(s)
- Wenjie Zhang
- Zhejiang provincial key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Ling Wei
- Zhejiang provincial key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Rong Xu
- Zhejiang provincial key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Guodong Lin
- Zhejiang provincial key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Huijie Xin
- Zhejiang provincial key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhengbing Lv
- Zhejiang provincial key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Hong Qian
- Zhejiang provincial key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
- Correspondence: (H.Q.); (H.S.); Tel.: +86-571-8898-1341 (H.S.)
| | - Hengbo Shi
- Zhejiang provincial key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
- College of Animal Science, Zhejiang University, Hangzhou 310015, China
- Correspondence: (H.Q.); (H.S.); Tel.: +86-571-8898-1341 (H.S.)
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Versace DL, Moran G, Belqat M, Spangenberg A, Méallet-Renault R, Abbad-Andaloussi S, Brezová V, Malval JP. Highly Virulent Bactericidal Effects of Curcumin-Based μ-Cages Fabricated by Two-Photon Polymerization. ACS Appl Mater Interfaces 2020; 12:5050-5057. [PMID: 31910616 DOI: 10.1021/acsami.9b18693] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A new antibacterial strategy is reported based on two-photon fabrication of three-dimensional curcumin-embedded μ-cages. Such devices were designed to entrap and kill Staphylococcus aureus bacteria upon visible light irradiation. The proposed concept mainly relies on the pivotal role of curcumin, which is sequentially used as a two-photon active free radical initiator and as a photogenerator of reactive oxygen species within the cage μ-volumes. We show that these μ-cages exhibit extremely high antimicrobial properties, leading to 95% bacteria mortality after only 10 min visible irradiation. A preconcentration mechanism of photogenerated oxygen species is proposed to account for this highly performing bactericidal effect whose virulence can be strikingly switched on by increasing the light exposure time from 5 to 10 min.
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Affiliation(s)
- Davy-Louis Versace
- ICMPE , CNRS-UPEC UMR 7182, Université Paris-Est Créteil (UPEC) , 94320 Thiais , France
| | - Gabriela Moran
- ISMO , CNRS, Université Paris-Saclay, Univ. Paris-Sud , Building 520 , 91405 Orsay , France
| | - Mehdi Belqat
- IS2M , CNRS, Université Haute Alsace , 68057 Mulhouse , France
| | | | - Rachel Méallet-Renault
- ISMO , CNRS, Université Paris-Saclay, Univ. Paris-Sud , Building 520 , 91405 Orsay , France
| | - Samir Abbad-Andaloussi
- Laboratoire Eau, Environnement et Systèmes Urbains (LEESU) , UMR MA 102, Université Paris-Est Créteil (UPEC) , 61, avenue du general de Gaulle , 94320 Thiais , France
| | - Vlasta Brezová
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology , Slovak University of Technology in Bratislava , SK-812 37 Bratislava , Slovak Republic
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Liang A, Zhang M, Luo H, Niu L, Feng Y, Li M. Porous Poly(Hexamethylene Biguanide) Hydrochloride Loaded Silk Fibroin Sponges with Antibacterial Function. Materials (Basel) 2020; 13:E285. [PMID: 31936365 PMCID: PMC7013801 DOI: 10.3390/ma13020285] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/03/2020] [Accepted: 01/06/2020] [Indexed: 11/17/2022]
Abstract
In order to endue silk fibroin (SF) sponges with antibacterial function, positively charged poly(hexamethylene biguanide) hydrochloride (PHMB) was incorporated in SF through electrostatic interaction and by freeze-drying technique. The influence of PHMB on the structure and antibacterial activities of SF sponges was investigated. The zeta potential of SF was increased significantly when PHMB was incorporated in SF. The pores with size from 80 to 300 µm and the microscale holes in the pore walls within PHMB-loaded SF sponges provided the channels of PHMB release. The PHMB loaded in the porous sponges showed continuous and slow release for up to 20 days. Effective growth inhibition of both Escherichia coli and Staphylococcus aureus was achieved when the mass ratio of PHMB/SF was higher than 2/100. These results suggest that the porous PHMB/SF sponges have the potential to be used as a novel wound dressing for open skin wounds.
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Affiliation(s)
| | | | | | | | | | - Mingzhong Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; (A.L.); (M.Z.); (H.L.); (L.N.); (Y.F.)
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45
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Chen H, Yang J, Sun L, Zhang H, Guo Y, Qu J, Jiang W, Chen W, Ji J, Yang YW, Wang B. Synergistic Chemotherapy and Photodynamic Therapy of Endophthalmitis Mediated by Zeolitic Imidazolate Framework-Based Drug Delivery Systems. Small 2019; 15:e1903880. [PMID: 31588682 DOI: 10.1002/smll.201903880] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 09/24/2019] [Indexed: 06/10/2023]
Abstract
Endophthalmitis, derived from the infections of pathogens, is a common complication during the use of ophthalmology-related biomaterials and after ophthalmic surgery. Herein, aiming at efficient photodynamic therapy (PDT) of bacterial infections and biofilm eradication of endophthalmitis, a pH-responsive zeolitic imidazolate framework-8-polyacrylic acid (ZIF-8-PAA) material is constructed for bacterial infection-targeted delivery of ammonium methylbenzene blue (MB), a broad-spectrum photosensitizer antibacterial agent. Polyacrylic acid (PAA) is incorporated into the system to achieve higher pH responsiveness and better drug loading capacity. MB-loaded ZIF-8-PAA nanoparticles are modified with AgNO3 /dopamine for in situ reduction of AgNO3 to silver nanoparticles (AgNPs), followed by a secondary modification with vancomycin/NH2 -polyethylene glycol (Van/NH2 -PEG), leading to the formation of a composite nanomaterial, ZIF-8-PAA-MB@AgNPs@Van-PEG. Dynamic light scattering, transmission electron microscopy, and UV-vis spectral analysis are used to explore the nanoparticles synthesis, drug loading and release, and related material properties. In terms of biological performance, in vitro antibacterial studies against three kinds of bacteria, i.e., Escherichia coli, Staphylococcus aureus, and methicillin-resistant S. aureus, suggest an obvious superiority of PDT/AgNPs to any single strategy. Both in vitro retinal pigment epithelium cellular biocompatibility experiments and in vivo mice endophthalmitis models verify the biocompatibility and antibacterial function of the composite nanomaterials.
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Affiliation(s)
- 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
| | - Jie Yang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Lin Sun
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Hengrui Zhang
- 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
| | - Yishun Guo
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Jia Qu
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Wenya Jiang
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Wei 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
| | - Jian Ji
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Ying-Wei Yang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - 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
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46
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Zhang X, Ou-Yang S, Wang J, Liao L, Wu R, Wei J. Construction of Antibacterial Surface Via Layer-by-Layer Method. Curr Pharm Des 2019; 24:926-935. [PMID: 29468955 DOI: 10.2174/1381612824666180219125655] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 02/15/2018] [Indexed: 11/22/2022]
Abstract
Construction of antibacterial surfaces or films is of great interest in various fields including biomedicine, food, agriculture and so on. So far, a number of antibacterial agents have been used to construct antibacterial surfaces. Layer-by-Layer (LbL) assembly is a simple and versatile deposition process for fabricating multilayer thin films with great advantages to control the architecture and composition of the films. In this review, we give a brief introduction of LbL, and different materials used to fabricate antibacterial surfaces with LbL assembly approach are described as well as their drawbacks. Much attention is also paid to the recent development of multifunctional and intelligent antibacterial surfaces. Moreover, the advantages and limitations of these different types of antibacterial materials are summarized and subsequently directions for future development are proposed.
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Affiliation(s)
- Xianhua Zhang
- Department of Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Nanchang 330006, China.,The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang 330006, China
| | - Shaobo Ou-Yang
- Department of Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Nanchang 330006, China.,The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang 330006, China
| | - Jiaolong Wang
- Department of Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Nanchang 330006, China.,The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang 330006, China
| | - Lan Liao
- Department of Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Nanchang 330006, China.,The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang 330006, China
| | - Runfa Wu
- Department of Prosthodontics, Affiliated Stomatological Hospital of Nanchang University, Nanchang 330006, China.,The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang 330006, China
| | - Junchao Wei
- The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang 330006, China.,College of Chemistry, Nanchang University, Nanchang 330031, China
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Schnaider L, Ghosh M, Bychenko D, Grigoriants I, Ya'ari S, Shalev Antsel T, Matalon S, Sarig R, Brosh T, Pilo R, Gazit E, Adler-Abramovich L. Enhanced Nanoassembly-Incorporated Antibacterial Composite Materials. ACS Appl Mater Interfaces 2019; 11:21334-21342. [PMID: 31134790 DOI: 10.1021/acsami.9b02839] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The rapid advancement of peptide- and amino-acid-based nanotechnology offers new approaches for the development of biomedical materials. The utilization of fluorenylmethyloxycarbonyl (Fmoc)-decorated self-assembling building blocks for antibacterial and anti-inflammatory purposes represents promising advancements in this field. Here, we present the antibacterial capabilities of the nanoassemblies formed by Fmoc-pentafluoro-l-phenylalanine-OH, their substantial effect on bacterial morphology, as well as new methods developed for the functional incorporation of these nanoassemblies within resin-based composites. These amalgamated materials inhibit and hinder bacterial growth and viability and are not cytotoxic toward mammalian cell lines. Importantly, due to the low dosage required to confer antibacterial activity, the integration of the nanoassemblies does not affect their mechanical and optical properties. This approach expands on the growing number of accounts on the intrinsic antibacterial capabilities of self-assembling building blocks and serves as a basis for further design and development of enhanced composite materials for biomedical applications.
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48
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Jiao Y, Wan C, Zhang W, Bao W, Li J. Carbon Fibers Encapsulated with Nano-Copper: A Core‒Shell Structured Composite for Antibacterial and Electromagnetic Interference Shielding Applications. Nanomaterials (Basel) 2019; 9:nano9030460. [PMID: 30893932 PMCID: PMC6474105 DOI: 10.3390/nano9030460] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 03/07/2019] [Accepted: 03/12/2019] [Indexed: 01/11/2023]
Abstract
A facile and scalable two-step method (including pyrolysis and magnetron sputtering) is created to prepare a core–shell structured composite consisting of cotton-derived carbon fibers (CDCFs) and nano-copper. Excellent hydrophobicity (water contact angle = 144°) and outstanding antibacterial activity against Escherichia coli and Staphylococcus aureus (antibacterial ratios of >92%) are achieved for the composite owing to the composition transformation from cellulose to carbon and nano-size effects as well as strong oxidizing ability of oxygen reactive radicals from interactions of nano-Cu with sulfhydryl groups of enzymes. Moreover, the core–shell material with high electrical conductivity induces the interfacial polarization loss and conduction loss, contributing to a high electromagnetic interference (EMI) shielding effectiveness of 29.3 dB. Consequently, this flexible and multi-purpose hybrid of nano-copper/CDCFs may be useful for numerous applications like self-cleaning wall cladding, EMI shielding layer and antibacterial products.
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Affiliation(s)
- Yue Jiao
- Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
| | - Caichao Wan
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
| | - Wenbo Zhang
- Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
| | - Wenhui Bao
- Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
| | - Jian Li
- Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
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49
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Otis G, Bhattacharya S, Malka O, Kolusheva S, Bolel P, Porgador A, Jelinek R. Selective Labeling and Growth Inhibition of Pseudomonas aeruginosa by Aminoguanidine Carbon Dots. ACS Infect Dis 2019; 5:292-302. [PMID: 30589261 DOI: 10.1021/acsinfecdis.8b00270] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pseudomonas aeruginosa is a highly virulent bacterium, particularly associated with the spread of multidrug resistance. Here we show that carbon dots (C-dots), synthesized from aminoguanidine and citric acid precursors, can selectively stain and inhibit the growth of P. aeruginosa strains. The aminoguanidine-C-dots were shown both to target P. aeruginosa bacterial cells and also to inhibit biofilm formation by the bacteria. Mechanistic analysis points to interactions between aminoguanidine residues on the C-dots' surface and P. aeruginosa lipopolysaccharide moieties as the likely determinants for both antibacterial and labeling activities. Indeed, the application of biomimetic membrane assays reveals that LPS-promoted insertion and bilayer permeation constitute the primary factors in the anti- P. aeruginosa effect of the aminoguanidine-C-dots. The aminoguanidine C-dots are easy to prepare in large quantities and are inexpensive and biocompatible and thus may be employed as a useful vehicle for selective staining and antibacterial activity against P. aeruginosa.
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50
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Li X, Bai H, Yang Y, Yoon J, Wang S, Zhang X. Supramolecular Antibacterial Materials for Combatting Antibiotic Resistance. Adv Mater 2019; 31:e1805092. [PMID: 30536445 DOI: 10.1002/adma.201805092] [Citation(s) in RCA: 189] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 08/24/2018] [Indexed: 05/07/2023]
Abstract
Antibiotic-resistant bacteria have emerged as a severe threat to human health. As effective antibacterial therapies, supramolecular materials display unprecedented advantages because of the flexible and tunable nature of their noncovalent interactions with biomolecules and the ability to incorporate various active agents in their platforms. Herein, supramolecular antibacterial materials are discussed using a format that focuses on their fundamental active elements and on recent advances including material selection, fabrication methods, structural characterization, and activity performance.
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Affiliation(s)
- Xingshu Li
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 120-750, South Korea
| | - Haotian Bai
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yuchong Yang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Juyoung Yoon
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 120-750, South Korea
| | - Shu Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xi Zhang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
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