1
|
Dugam S, Jain R, Dandekar P. Silver nanoparticles loaded triple-layered cellulose-acetate based multifunctional dressing for wound healing. Int J Biol Macromol 2024; 276:133837. [PMID: 39009263 DOI: 10.1016/j.ijbiomac.2024.133837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 06/07/2024] [Accepted: 07/11/2024] [Indexed: 07/17/2024]
Abstract
Chronic wounds present considerable challenges which delay their effective healing. Currently, there are several biomaterial-based wound dressings available for healing diverse wound types. However, most of commercial wound dressings are too expensive to be affordable to the patients belonging to the middle and lower socioeconomic strata of the society. Thus, in this investigation affordable triple layered nanofibrous bandages were fabricated using the layer-by-layer approach. Here, the topmost layer comprised of a hydrophilic poly vinyl alcohol layer, cross-linked with citric acid. The middle layer comprising of cellulose acetate was loaded with silver nanoparticles as an antibacterial agent, while the lowermost layer was fabricated using hydrophobic polycaprolactone. The triple-layered nanofibrous bandages having a nano-topography, exhibited a smooth, uniform and bead-free morphology, with the nanofiber diameter ranging between 200 and 300 nm. The nanofibers demonstrated excellent wettability, slow in vitro degradation, controlled release of nano‑silver and potent antibacterial activity against Gram-negative (E.coli) and Gram-positive (S. aureus) bacteria. The fabricated bandages had excellent mechanical strength upto 12.72 ± 0.790 M. Pa, which was suitable for biomedical and tissue engineering applications. The bandage demonstrated excellent in vitro hemocompatibility and biocompatibility. In vivo excisional wound contraction, along with H and E and Masson's Trichrome staining further confirmed the potential of the nanofibrous bandage for full-thickness wound healing. Pre-clinical investigations thus indicated the possibility of further evaluating the triple-layered nanofibrous dressing in clinical settings.
Collapse
Affiliation(s)
- Shailesh Dugam
- Department of Pharmaceutical sciences and technology, Institute of Chemical Technology, Mumbai, India
| | - Ratnesh Jain
- Department of Biological sciences and biotechnology, Institute of Chemical Technology, Mumbai, India.
| | - Prajakta Dandekar
- Department of Pharmaceutical sciences and technology, Institute of Chemical Technology, Mumbai, India.
| |
Collapse
|
2
|
Naik GARR, Roy AA, Mutalik S, Dhas N. Unleashing the power of polymeric nanoparticles - Creative triumph against antibiotic resistance: A review. Int J Biol Macromol 2024; 278:134977. [PMID: 39187099 DOI: 10.1016/j.ijbiomac.2024.134977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 08/08/2024] [Accepted: 08/21/2024] [Indexed: 08/28/2024]
Abstract
Antibiotic resistance (ABR) poses a universal concern owing to the widespread use of antibiotics in various sectors. Nanotechnology emerges as a promising solution to combat ABR, offering targeted drug delivery, enhanced bioavailability, reduced toxicity, and stability. This comprehensive review explores concepts of antibiotic resistance, its mechanisms, and multifaceted approaches to combat ABR. The review provides an in-depth exploration of polymeric nanoparticles as advanced drug delivery systems, focusing on strategies for targeting microbial infections and contributing to the fight against ABR. Nanoparticles revolutionize antimicrobial approaches, emphasizing passive and active targeting. The role of various molecules, including small molecules, antimicrobial peptides, proteins, carbohydrates, and stimuli-responsive systems, is being explored in recent research works. The complex comprehension mechanisms of ABR and strategic use of nanotechnology present a promising avenue for advancing antimicrobial tactics, ensuring treatment efficacy, minimizing toxic effects, and mitigating development of ABR. Polymeric nanoparticles, derived from natural or synthetic polymers, are crucial in overcoming ABR. Natural polymers like chitosan and alginate exhibit inherent antibacterial properties, while synthetic polymers such as polylactic acid (PLA), polyethylene glycol (PEG), and polycaprolactone (PCL) can be engineered for specific antibacterial effects. This comprehensive study provides a valuable source of information for researchers, healthcare professionals, and policymakers engaged in the urgent quest to overcome ABR.
Collapse
Affiliation(s)
- Gaurisha Alias Resha Ramnath Naik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, Karnataka State 576104, India
| | - Amrita Arup Roy
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, Karnataka State 576104, India
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, Karnataka State 576104, India
| | - Namdev Dhas
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, Karnataka State 576104, India.
| |
Collapse
|
3
|
Coppola B, Menotti F, Longo F, Banche G, Mandras N, Palmero P, Allizond V. New Generation of Osteoinductive and Antimicrobial Polycaprolactone-Based Scaffolds in Bone Tissue Engineering: A Review. Polymers (Basel) 2024; 16:1668. [PMID: 38932017 PMCID: PMC11207319 DOI: 10.3390/polym16121668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/27/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
With respect to other fields, bone tissue engineering has significantly expanded in recent years, leading not only to relevant advances in biomedical applications but also to innovative perspectives. Polycaprolactone (PCL), produced in the beginning of the 1930s, is a biocompatible and biodegradable polymer. Due to its mechanical and physicochemical features, as well as being easily shapeable, PCL-based constructs can be produced with different shapes and degradation kinetics. Moreover, due to various development processes, PCL can be made as 3D scaffolds or fibres for bone tissue regeneration applications. This outstanding biopolymer is versatile because it can be modified by adding agents with antimicrobial properties, not only antibiotics/antifungals, but also metal ions or natural compounds. In addition, to ameliorate its osteoproliferative features, it can be blended with calcium phosphates. This review is an overview of the current state of our recent investigation into PCL modifications designed to impair microbial adhesive capability and, in parallel, to allow eukaryotic cell viability and integration, in comparison with previous reviews and excellent research papers. Our recent results demonstrated that the developed 3D constructs had a high interconnected porosity, and the addition of biphasic calcium phosphate improved human cell attachment and proliferation. The incorporation of alternative antimicrobials-for instance, silver and essential oils-at tuneable concentrations counteracted microbial growth and biofilm formation, without affecting eukaryotic cells' viability. Notably, this challenging research area needs the multidisciplinary work of material scientists, biologists, and orthopaedic surgeons to determine the most suitable modifications on biomaterials to design favourable 3D scaffolds based on PCL for the targeted healing of damaged bone tissue.
Collapse
Affiliation(s)
- Bartolomeo Coppola
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Turin, Italy; (B.C.); (P.P.)
| | - Francesca Menotti
- Department of Public Health and Pediatrics, University of Torino, 10126 Turin, Italy; (F.M.); (N.M.); (V.A.)
| | - Fabio Longo
- Department of Public Health and Pediatrics, University of Torino, 10126 Turin, Italy; (F.M.); (N.M.); (V.A.)
| | - Giuliana Banche
- Department of Public Health and Pediatrics, University of Torino, 10126 Turin, Italy; (F.M.); (N.M.); (V.A.)
| | - Narcisa Mandras
- Department of Public Health and Pediatrics, University of Torino, 10126 Turin, Italy; (F.M.); (N.M.); (V.A.)
| | - Paola Palmero
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Turin, Italy; (B.C.); (P.P.)
| | - Valeria Allizond
- Department of Public Health and Pediatrics, University of Torino, 10126 Turin, Italy; (F.M.); (N.M.); (V.A.)
| |
Collapse
|
4
|
Cui T, Zhou D, Zhang Y, Kong D, Wang Z, Han Z, Song M, Aimaier X, Dan Y, Zhang B, Li H. A pH-Responsive Polycaprolactone-Copper Peroxide Composite Coating Fabricated via Suspension Flame Spraying for Antimicrobial Applications. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2666. [PMID: 38893930 PMCID: PMC11173732 DOI: 10.3390/ma17112666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/17/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024]
Abstract
In this study, a pH-responsive polycaprolactone (PCL)-copper peroxide (CuO2) composite antibacterial coating was developed by suspension flame spraying. The successful synthesis of CuO2 nanoparticles and fabrication of the PCL-CuO2 composite coatings were confirmed by microstructural and chemical analysis. The composite coatings were structurally homogeneous, with the chemical properties of PCL well maintained. The acidic environment was found to effectively accelerate the dissociation of CuO2, allowing the simultaneous release of Cu2+ and H2O2. Antimicrobial tests clearly revealed the enhanced antibacterial properties of the PCL-CuO2 composite coating against both Escherichia coli and Staphylococcus aureus under acidic conditions, with a bactericidal effect of over 99.99%. This study presents a promising approach for constructing pH-responsive antimicrobial coatings for biomedical applications.
Collapse
Affiliation(s)
- Tingting Cui
- Cixi Biomedical Research Institute, Wenzhou Medical University, Wenzhou 325035, China; (T.C.); (D.Z.); (Y.Z.); (D.K.); (Z.W.); (Z.H.); (M.S.); (X.A.)
- Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Daofeng Zhou
- Cixi Biomedical Research Institute, Wenzhou Medical University, Wenzhou 325035, China; (T.C.); (D.Z.); (Y.Z.); (D.K.); (Z.W.); (Z.H.); (M.S.); (X.A.)
- Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Yu Zhang
- Cixi Biomedical Research Institute, Wenzhou Medical University, Wenzhou 325035, China; (T.C.); (D.Z.); (Y.Z.); (D.K.); (Z.W.); (Z.H.); (M.S.); (X.A.)
- Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Decong Kong
- Cixi Biomedical Research Institute, Wenzhou Medical University, Wenzhou 325035, China; (T.C.); (D.Z.); (Y.Z.); (D.K.); (Z.W.); (Z.H.); (M.S.); (X.A.)
- Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Zhijuan Wang
- Cixi Biomedical Research Institute, Wenzhou Medical University, Wenzhou 325035, China; (T.C.); (D.Z.); (Y.Z.); (D.K.); (Z.W.); (Z.H.); (M.S.); (X.A.)
- Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Zhuoyue Han
- Cixi Biomedical Research Institute, Wenzhou Medical University, Wenzhou 325035, China; (T.C.); (D.Z.); (Y.Z.); (D.K.); (Z.W.); (Z.H.); (M.S.); (X.A.)
- Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Meiqi Song
- Cixi Biomedical Research Institute, Wenzhou Medical University, Wenzhou 325035, China; (T.C.); (D.Z.); (Y.Z.); (D.K.); (Z.W.); (Z.H.); (M.S.); (X.A.)
- Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Xierzhati Aimaier
- Cixi Biomedical Research Institute, Wenzhou Medical University, Wenzhou 325035, China; (T.C.); (D.Z.); (Y.Z.); (D.K.); (Z.W.); (Z.H.); (M.S.); (X.A.)
- Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Yanxin Dan
- Graduate School of Engineering, Tohoku University, Sendai 980-8577, Japan;
| | - Botao Zhang
- Cixi Biomedical Research Institute, Wenzhou Medical University, Wenzhou 325035, China; (T.C.); (D.Z.); (Y.Z.); (D.K.); (Z.W.); (Z.H.); (M.S.); (X.A.)
- Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Zhejiang-Japan Joint Laboratory for Antibacterial and Antifouling Technology, Ningbo Cixi Institute of Biomedical Engineering, Ningbo 315201, China
| | - Hua Li
- Cixi Biomedical Research Institute, Wenzhou Medical University, Wenzhou 325035, China; (T.C.); (D.Z.); (Y.Z.); (D.K.); (Z.W.); (Z.H.); (M.S.); (X.A.)
- Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Zhejiang-Japan Joint Laboratory for Antibacterial and Antifouling Technology, Ningbo Cixi Institute of Biomedical Engineering, Ningbo 315201, China
| |
Collapse
|
5
|
Maharjan A, Gautam R, Lee G, Kim D, Lee D, Acharya M, Kim H, Heo Y, Kim C. Assessment of skin sensitization potential of zinc oxide, aluminum oxide, manganese oxide, and copper oxide nanoparticles through the local lymph node assay: 5-bromo-deoxyuridine flow cytometry method. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2024:1-11. [PMID: 38796781 DOI: 10.1080/15287394.2024.2357466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The advent of nanotechnology has significantly spurred the utilization of nanoparticles (NPs) across diverse sectors encompassing industry, agriculture, engineering, cosmetics, and medicine. Metallic oxides including zinc oxide (ZnO), copper oxide (CuO), manganese oxide (Mn2O3), and aluminum oxide (Al2O3), in their NP forms, have become prevalent in cosmetics and various dermal products. Despite the expanding consideration of these compounds for dermal applications, their potential for initiating skin sensitization (SS) has not been comprehensively examined. An in vivo assay, local lymph node assay: 5-bromo-2-deoxyuridine-flow cytometry method (LLNA: BrdU-FCM) recognized as an alternative testing method for screening SS potential was used to address these issues. Following the OECD TG 442B guidelines, NPs suspensions smaller than 50 nm size were prepared for ZnO and Al2O3 at concentrations of 10, 25, and 50%, and Mn2O3 and CuO at concentrations of 5, 10, and 25%, and applied to the dorsum of each ear of female BALB/c mice on a daily basis for 3 consecutive days. Regarding the prediction of test substance to skin sensitizer if sensitization index (SI)≥2.7, all 4 NPs were classified as non-sensitizing. The SI values were below 2.06, 1.33, 1.42, and 0.99 for ZnO, Al2O3, Mn2O3, and CuO, respectively, at all test concentrations. Although data presented were negative with respect to adverse SS potential for these 4 NPs, further confirmatory tests addressing other key events associated with SS adverse outcome pathway need to be carried out to arrive at an acceptable conclusion on the skin safety for both cosmetic and dermal applications.
Collapse
Affiliation(s)
- Anju Maharjan
- Department of Health and Safety, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
| | - Ravi Gautam
- Department of Health and Safety, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
| | - GiYong Lee
- Department of Toxicity Assessment, Daegu Catholic University Graduate School of Medical Health and Science, Gyeongsan, Republic of Korea
| | - DongYoon Kim
- Department of Toxicity Assessment, Daegu Catholic University Graduate School of Medical Health and Science, Gyeongsan, Republic of Korea
| | - DaEun Lee
- Department of Occupational Health, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
| | - Manju Acharya
- Department of Health and Safety, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
| | - HyoungAh Kim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yong Heo
- Department of Health and Safety, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
- Department of Toxicity Assessment, Daegu Catholic University Graduate School of Medical Health and Science, Gyeongsan, Republic of Korea
- Department of Occupational Health, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
| | - ChangYul Kim
- Department of Health and Safety, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
- Department of Toxicity Assessment, Daegu Catholic University Graduate School of Medical Health and Science, Gyeongsan, Republic of Korea
| |
Collapse
|
6
|
Cui M, Li S, Ma X, Wang J, Wang X, Stott NE, Chen J, Zhu J, Chen J. Sustainable Janus lignin-based polyurethane biofoams with robust antibacterial activity and long-term biofilm resistance. Int J Biol Macromol 2024; 256:128088. [PMID: 37977464 DOI: 10.1016/j.ijbiomac.2023.128088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/12/2023] [Accepted: 11/12/2023] [Indexed: 11/19/2023]
Abstract
Conventional antibiotic therapies have been becoming less efficient due to increasingly, and sometimes fully, antibiotic-resistant bacterial strains, sometimes known as "superbacteria" or "superbugs." Thus, novel antibacterial materials to effectively inhibit or kill bacteria are crucial for humanity. As a broad-spectrum antimicrobial agent, silver nanoparticles (Ag NPs) have been the most widely commercialized of biomedical materials. However, long-term use of significant amounts of Ag NPs can be potentially harmful to human health through a condition known as argyria, in addition to being toxic to many environmental systems. It is, thus, highly necessary to reduce the amount of Ag NPs employed in medical treatments while also ensuring maintenance of antimicrobial properties, in addition to reducing the overall cost of treatment for humanitarian utilization. For this purpose, naturally sourced antimicrobial polylysine (PL) is used to partially replace Ag NPs within the materials composition. Accordingly, a series of PL, Ag NPs, and lignin-based polyurethane (LPU) composite biofoams (LPU-PL-Ag) were prepared. These proposed composite biofoams, containing at most only 2 % PL and 0.03 % Ag NPs, significantly inhibited the growth of both Gram-positive and Gram-negative bacteria within 1 h and caused irreversibly destructive bactericidal effects. Additionally, with a layer of polydimethylsiloxane (PDMS) on the surface, PDMS-LPU-PL(2 %)-Ag(0.03 %) can effectively prevent bacterial adhesion with a clearance rate of about 70 % for both bacterial biofilms within three days and a growth rate of more than 80 % for mouse fibroblasts NIH 3 T3. These lignin-based polyurethane biofoam dressings, with shorter antiseptic sterilization times and broad-spectrum antibacterial effects, are extremely advantageous for infected wound treatment and healing in clinical use.
Collapse
Affiliation(s)
- Minghui Cui
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Laboratory of Polymers and Composites, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; Department of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Shuqi Li
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Laboratory of Polymers and Composites, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Xiaozhen Ma
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Laboratory of Polymers and Composites, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Jinggang Wang
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Laboratory of Polymers and Composites, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Xiaolin Wang
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Laboratory of Polymers and Composites, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Nathan E Stott
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Laboratory of Polymers and Composites, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Jing Chen
- Institute of Medical Sciences, The Second Hospital & Shandong University Center for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan 250033, China.
| | - Jin Zhu
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Laboratory of Polymers and Composites, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Jing Chen
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Laboratory of Polymers and Composites, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; University of Chinese Academy of Sciences, Beijing 100039, China.
| |
Collapse
|
7
|
Chang W, Li P. Copper and Diabetes: Current Research and Prospect. Mol Nutr Food Res 2023; 67:e2300468. [PMID: 37863813 DOI: 10.1002/mnfr.202300468] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/29/2023] [Indexed: 10/22/2023]
Abstract
Copper is an essential trace metal for normal cellular functions; a lack of copper is reported to impair the function of important copper-binding enzymes, while excess copper could lead to cell death. Numerous studies have shown an association between dietary copper consumption or plasma copper levels and the incidence of diabetes/diabetes complications. And experimental studies have revealed multiple signaling pathways that are triggered by copper shortages or copper overload in diabetic conditions. Moreover, studies show that treated with copper chelators improve vascular function, maintain copper homeostasis, inhibit cuproptosis, and reduce cell toxicity, thereby alleviating diabetic neuropathy, retinopathy, nephropathy, and cardiomyopathy. However, the mechanisms reported in these studies are inconsistent or even contradictory. This review summarizes the precise and tight regulation of copper homeostasis processes, and discusses the latest progress in the association of diabetes and dietary copper/plasma copper. Further, the study pays close attention to the therapeutic potential of copper chelators and copper in diabetes and its complications, and hopes to provide new insight for the treatment of diabetes.
Collapse
Affiliation(s)
- Wenguang Chang
- Institute for Translational Medicine, The Affiliated Hospital, College of medicine, Qingdao University, Qingdao, 266021, China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital, College of medicine, Qingdao University, Qingdao, 266021, China
| |
Collapse
|
8
|
Ibrahim SW, Hamad TI, Haider J. Biological properties of polycaprolactone and barium titanate composite in biomedical applications. Sci Prog 2023; 106:368504231215942. [PMID: 38031343 PMCID: PMC10687994 DOI: 10.1177/00368504231215942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
The ceramic-polymer composite materials are widely known for their exceptional mechanical and biological properties. Polycaprolactone (PCL) is a biodegradable polymer material extensively used in various biomedical applications. At the same time, barium titanate (BT), a ceramic material, exhibits piezoelectric properties similar to bone, which is essential for osseointegration. Furthermore, a composite material that combines the benefits of PCL and BT results in an innovative composite material with enhanced properties for biomedical applications. Thus, this review is organised into three sections. Firstly, it aims to provide an overview of the current research on evaluating biological properties, including antibacterial activity, cytotoxicity and osseointegration, of PCL polymeric matrices in its pure form and reinforced structures with ceramics, polymers and natural extracts. The second section investigates the biological properties of BT, both in its pure form and in combination with other supporting materials. Finally, the third section provides a summary of the biological properties of the PCLBT composite material. Furthermore, the existing challenges of PCL, BT and their composites, along with future research directions, have been presented. Therefore, this review will provide a state-of-the-art understanding of the biological properties of PCL and BT composites as potential futuristic materials in biomedical applications.
Collapse
Affiliation(s)
- Sabreen Waleed Ibrahim
- Prosthodontic Department, College of Dentistry, Al Mustansiriyah University, Baghdad, Iraq
| | - Thekra Ismael Hamad
- Department of Prosthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Julfikar Haider
- Department of Engineering, Manchester Metropolitan University, Manchester, UK
| |
Collapse
|
9
|
Li X, Jing X, Yu Z, Huang Y. Diverse Antibacterial Treatments beyond Antibiotics for Diabetic Foot Ulcer Therapy. Adv Healthc Mater 2023; 12:e2300375. [PMID: 37141030 DOI: 10.1002/adhm.202300375] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/06/2023] [Indexed: 05/05/2023]
Abstract
Diabetic foot ulcer (DFU), a common complication of diabetes, has become a great burden to both patients and the society. The delayed wound closure of ulcer sites resulting from vascular damage and neutrophil dysfunction facilitates bacterial infection. Once drug resistance occurs or bacterial biofilm is formed, conventional therapy tends to fail and amputation is unavoidable. Therefore, effective antibacterial treatment beyond antibiotics is of utmost importance to accelerate the wound healing process and prevent amputation. Considering the complexity of multidrug resistance, biofilm formation, and special microenvironments (such as hyperglycemia, hypoxia, and abnormal pH value) at the infected site of DFU, several antibacterial agents and different mechanisms have been explored to achieve the desired outcome. The present review focuses on the recent progress of antibacterial treatments, including metal-based medications, natural and synthesized antimicrobial peptides, antibacterial polymers, and sensitizer-based therapy. This review provides a valuable reference for the innovation of antibacterial material design for DFU therapy.
Collapse
Affiliation(s)
- Xiaoyuan Li
- Faculty of Chemistry, Northeast Normal University, Renmin Street, Changchun, 130024, P. R. China
| | - Xin Jing
- Faculty of Chemistry, Northeast Normal University, Renmin Street, Changchun, 130024, P. R. China
| | - Ziqian Yu
- Faculty of Chemistry, Northeast Normal University, Renmin Street, Changchun, 130024, P. R. China
| | - Yubin Huang
- Faculty of Chemistry, Northeast Normal University, Renmin Street, Changchun, 130024, P. R. China
| |
Collapse
|
10
|
Vivcharenko V, Trzaskowska M, Przekora A. Wound Dressing Modifications for Accelerated Healing of Infected Wounds. Int J Mol Sci 2023; 24:ijms24087193. [PMID: 37108356 PMCID: PMC10139077 DOI: 10.3390/ijms24087193] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/07/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Infections that occur during wound healing involve the most frequent complications in the field of wound care which not only inhibit the whole process but also lead to non-healing wound formation. The diversity of the skin microbiota and the wound microenvironment can favor the occurrence of skin infections, contributing to an increased level of morbidity and even mortality. As a consequence, immediate effective treatment is required to prevent such pathological conditions. Antimicrobial agents loaded into wound dressings have turned out to be a great option to reduce wound colonization and improve the healing process. In this review paper, the influence of bacterial infections on the wound-healing phases and promising modifications of dressing materials for accelerated healing of infected wounds are discussed. The review paper mainly focuses on the novel findings on the use of antibiotics, nanoparticles, cationic organic agents, and plant-derived natural compounds (essential oils and their components, polyphenols, and curcumin) to develop antimicrobial wound dressings. The review article was prepared on the basis of scientific contributions retrieved from the PubMed database (supported with Google Scholar searching) over the last 5 years.
Collapse
Affiliation(s)
- Vladyslav Vivcharenko
- Independent Unit of Tissue Engineering and Regenerative Medicine, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland
| | - Marta Trzaskowska
- Independent Unit of Tissue Engineering and Regenerative Medicine, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland
| | - Agata Przekora
- Independent Unit of Tissue Engineering and Regenerative Medicine, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland
| |
Collapse
|
11
|
Uskoković V. Lessons from the history of inorganic nanoparticles for inhalable diagnostics and therapeutics. Adv Colloid Interface Sci 2023; 315:102903. [PMID: 37084546 DOI: 10.1016/j.cis.2023.102903] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 04/23/2023]
Abstract
The respiratory tract is one of the most accessible ones to exogenous nanoparticles, yet drug delivery by their means to it is made extraordinarily challenging because of the plexus of aerodynamic, hemodynamic and biomolecular factors at cellular and extracellular levels that synergistically define the safety and efficacy of this process. Here, the use of inorganic nanoparticles (INPs) for inhalable diagnostics and therapies of the lung is viewed through the prism of the history of studies on the interaction of INPs with the lower respiratory tract. The most conceptually and methodologically innovative and illuminative studies are referred to in the chronological order, as they were reported in the literature, and the trends in the progress of understanding this interaction of immense therapeutic and toxicological significance are being deduced from it. The most outstanding actual trends delineated include the diminishment of toxicity via surface functionalization, cell targeting, tagging and tracking via controlled binding and uptake, hybrid INP treatments, magnetic guidance, combined drug and gene delivery, use as adjuvants in inhalable vaccines, and other. Many of the understudied research directions, which have been accomplished by the nanostructured organic polymers in the pulmonary niche, are discussed. The progress in the use of INPs as inhalable diagnostics or therapeutics has been hampered by their well-recognized inflammatory potential and toxicity in the respiratory tract. However, the annual numbers of methodologically innovative studies have been on the rise throughout the past two decades, suggesting that this is a prolific direction of research, its comparatively poor commercial takings notwithstanding. Still, the lack of consensus on the effects of many INP compositions at low but therapeutically effective doses, the plethora of contradictory reports on ostensibly identical chemical compositions and NP properties, and the many cases of antagonism in combinatorial NP treatments imply that the rational design of inhalable medical devices based on INPs must rely on qualitative principles for the most part and embrace a partially stochastic approach as well. At the same time, the fact that the most studied INPs for pulmonary applications have been those with some of the thickest records of pulmonary toxicity, e.g., carbon, silver, gold, silica and iron oxide, is a silent call for the expansion of the search for new inorganic compositions for use in inhalable therapies to new territories.
Collapse
Affiliation(s)
- Vuk Uskoković
- Advanced Materials and Nanobiotechnology Laboratory, TardigradeNano LLC, 7 Park Vista, Irvine, CA 92604, USA; Department of Mechanical Engineering, San Diego State University, 5500 Campanile Dr., San Diego, CA 92182, USA.
| |
Collapse
|
12
|
Li X, Cong Y, Ovais M, Cardoso MB, Hameed S, Chen R, Chen M, Wang L. Copper-based nanoparticles against microbial infections. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023:e1888. [PMID: 37037205 DOI: 10.1002/wnan.1888] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/14/2023] [Accepted: 03/13/2023] [Indexed: 04/12/2023]
Abstract
Drug-resistant bacteria and highly infectious viruses are among the major global threats affecting the human health. There is an immediate need for novel strategies to tackle this challenge. Copper-based nanoparticles (CBNPs) have exhibited a broad antimicrobial capacity and are receiving increasing attention in this context. In this review, we describe the functionalization of CBNPs, elucidate their antibacterial and antiviral activity as well as applications, and briefly review their toxicity, biodistribution, and persistence. The limitations of the current study and potential solutions are also shortly discussed. The review will guide the rational design of functional nanomaterials for antimicrobial application. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease.
Collapse
Affiliation(s)
- Xiumin Li
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, Liaoning, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Yalin Cong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China
| | - Muhammad Ovais
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, China
| | - Mateus Borba Cardoso
- The Soft and Biological Matter Division, Brazilian Synchrotron Light Laboratory, Institute of Chemistry, University of Campinas, CEP 13083-970 Campinas, São Paulo, CP, 6154, Brazil
| | - Saima Hameed
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Rui Chen
- Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing, 100083, China
| | - Mingli Chen
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, Liaoning, China
| | - Liming Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
13
|
Microbially Synthesized Polymer-Metal Nanoparticles Composites as Promising Wound Dressings to Overcome Methicillin-Resistance Staphylococcus aureus Infections. Polymers (Basel) 2023; 15:polym15040920. [PMID: 36850204 PMCID: PMC9960834 DOI: 10.3390/polym15040920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/22/2023] [Accepted: 02/06/2023] [Indexed: 02/15/2023] Open
Abstract
Antimicrobial resistance has been declared one of the top 10 global public health threats. Methicillin-resistant Staphylococcus aureus (MRSA) is a leading cause of recurring skin and soft tissue infections in patients with chronic skin conditions such as diabetic foot infections, making the treatment of the ulcers challenging. Wound dressings combined with metal nanoparticles have been suggested to prevent and treat MRSA-infected wounds. However, these particles are commonly synthesized by chemical approaches. In this study, we developed bio-based silver (Bio-AgNPs) and copper oxide nanoparticles (CuONPs) polymer composites using a microbially produced polyester from the Polyhydroxyalkanoates (PHAs) family. Poly(3-hydroxyoctanoate)-co-(3-hydroxyhexanoate) (PHO) was synthesized by Pseudomonas putida and functionalized in-situ with Bio-AgNPs or ex-situ with CuONPs. PHO-CuONPs films did not inhibit MRSA growth, while a reduction of 6.0 log CFU/mL was achieved with PHO-Bio-AgNPs synthesized from silver nitrate (AgNO3) solution at 3.5 mM. Exposure of human fibroblast cells (HFF-1) to the bioactive films did not induce notable cytotoxicity and genotoxicity, as seen by a viability higher than 79% and no significant changes in basal DNA damage. However, exposure to PHO-Bio-AgNPs induced oxidative DNA damage in HFF-1 cells. No hemolytic potential was observed, while platelet aggregation was promoted and desired for wound healing. Here we demonstrate the biosynthesis of polymer-nanoparticle composites and their potential as bioactive films for MRSA treatment.
Collapse
|
14
|
Overview of Antimicrobial Biodegradable Polyester-Based Formulations. Int J Mol Sci 2023; 24:ijms24032945. [PMID: 36769266 PMCID: PMC9917530 DOI: 10.3390/ijms24032945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/18/2023] [Accepted: 01/21/2023] [Indexed: 02/05/2023] Open
Abstract
As the clinical complications induced by microbial infections are known to have life-threatening side effects, conventional anti-infective therapy is necessary, but not sufficient to overcome these issues. Some of their limitations are connected to drug-related inefficiency or resistance and pathogen-related adaptive modifications. Therefore, there is an urgent need for advanced antimicrobials and antimicrobial devices. A challenging, yet successful route has been the development of new biostatic or biocide agents and biomaterials by considering the indisputable advantages of biopolymers. Polymers are attractive materials due to their physical and chemical properties, such as compositional and structural versatility, tunable reactivity, solubility and degradability, and mechanical and chemical tunability, together with their intrinsic biocompatibility and bioactivity, thus enabling the fabrication of effective pharmacologically active antimicrobial formulations. Besides representing protective or potentiating carriers for conventional drugs, biopolymers possess an impressive ability for conjugation or functionalization. These aspects are key for avoiding malicious side effects or providing targeted and triggered drug delivery (specific and selective cellular targeting), and generally to define their pharmacological efficacy. Moreover, biopolymers can be processed in different forms (particles, fibers, films, membranes, or scaffolds), which prove excellent candidates for modern anti-infective applications. This review contains an overview of antimicrobial polyester-based formulations, centered around the effect of the dimensionality over the properties of the material and the effect of the production route or post-processing actions.
Collapse
|
15
|
Zhang M, Han S, Niu X, Li H, Zhang D, Fan H, Liu X, Wang K. PPy and CQDs‐doped novel CuO nanocomposites for enhanced antibacterial activity against drug‐resistant bacteria.**. ChemistrySelect 2022. [DOI: 10.1002/slct.202203636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Mengmeng Zhang
- School of Petrochemical Technology Lanzhou University of Technology Lanzhou 730050 China
| | - Sha Han
- School of Petrochemical Technology Lanzhou University of Technology Lanzhou 730050 China
| | - Xiaohui Niu
- School of Petrochemical Technology Lanzhou University of Technology Lanzhou 730050 China
| | - Hongxia Li
- School of Petrochemical Technology Lanzhou University of Technology Lanzhou 730050 China
| | - Deyi Zhang
- School of Petrochemical Technology Lanzhou University of Technology Lanzhou 730050 China
| | - Haiyan Fan
- Chemistry Department Nazarbayev University Astana 010000 Kazakhstan
| | - Xiaoyu Liu
- School of Petrochemical Technology Lanzhou University of Technology Lanzhou 730050 China
| | - Kunjie Wang
- School of Petrochemical Technology Lanzhou University of Technology Lanzhou 730050 China
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province Lanzhou 730050 China
| |
Collapse
|
16
|
Dastidar DG, Singh P, Bhattacharjee R, Ghosh D, Banerjee M, Biswas S, Mukherjee SK, Mandal S. Development of Copper Nanoparticle Conjugated Chitosan Microparticle as a Stable Source of 2nm Copper Nanoparticle Effective against Methicillin- resistant Staphylococcus aureus. Pharm Nanotechnol 2022; 10:310-326. [PMID: 36017866 DOI: 10.2174/2211738510666220823152415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/08/2022] [Accepted: 06/24/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Copper nanoparticle (CuNP) has well-established antimicrobial activity. Instability in an aqueous medium due to aggregation into larger particles, conversion into metal ions, and oxidation into metal oxides are the major limitations of its practical use against bacterial infections. OBJECTIVE Development of CuNP Conjugated Chitosan Microparticles as a reservoir that will release CuNP effective against notorious bacteria like Methicillin-resistant Staphylococcus aureus. METHODS CuNP conjugated chitosan microparticles (CNCCM) were synthesized using a simple twostep process. In the first step, a solution of chitosan in 2% (w/v) ascorbic acid was added dropwise in copper sulphate solution to prepare Cu ion conjugated chitosan beads. In the second step, these beads were soaked in sodium hydroxide solution to get the CNCCM. The dried CNCCM were characterized thoroughly for surface conjugation of CuNP, and the release of CuNP in a suitable medium. The physicochemical properties of release CuNP were further verified with the in silico modelled CuNP. The Antimicrobial and antibiofilm activities of released CuNp were evaluated against methicillin-resistant Staphylococcus aureus (MRSA). RESULTS 2% (w/v) ascorbic acid solution (pH 3.5) was the optimum medium for the release of ~2 nm CuNP from CNCCM. The CuNP had an optical band gap of ~ 2 eV. It inhibited the cell wall synthesis of MRSA. The minimum inhibitory concentration was 200 nM. At 100 nM dose, the CuNP caused ~73% reduction in biofilm development after 24 h of growth. The cytotoxic effect of CuNP on the human cell line (HEK 293) was significantly less than that on MRSA. The 48 h IC50 value against HEK 293 was 3.45-fold higher than the MIC value against MRSA after 24 h treatment. CONCLUSION CuNP Conjugated Chitosan Microparticle has been developed. It works as a stable reservoir of ~2 nm CuNP. The CuNP is released in an aqueous medium containing 2% (w/v) ascorbic acid (pH 3.5). The released CuNP has a bacteriostatic effect against MRSA at a concentration safe for human cells.
Collapse
Affiliation(s)
- Debabrata Ghosh Dastidar
- Department of Pharmaceutics, Guru Nanak Institute of Pharmaceutical Science & Technology, 157/F Nilgunj Road, Panihati, Kolkata 700114, West Bengal, India
| | - Prabhakar Singh
- Electron Microscopy Facility, Department of Anatomy, All India Institute of Medical Sciences, New Delhi 110029 India
| | - Romit Bhattacharjee
- Department of Pharmaceutics, Guru Nanak Institute of Pharmaceutical Science & Technology, 157/F Nilgunj Road, Panihati, Kolkata 700114, West Bengal, India
| | - Dipanjan Ghosh
- Department of Biotechnology and Dr. B.C. Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, WB, 700019, India
| | - Malabika Banerjee
- Department of Microbiology, University of Kalyani, Kalyani, West Bengal 741235, India
| | - Samik Biswas
- Department of Microbiology, University of Kalyani, Kalyani, West Bengal 741235, India
| | - Samir Kumar Mukherjee
- Department of Microbiology, University of Kalyani, Kalyani, West Bengal 741235, India
| | - Supratim Mandal
- Department of Microbiology, University of Kalyani, Kalyani, West Bengal 741235, India
| |
Collapse
|
17
|
da Silva MRP, Matos RS, Monteiro MDS, Santos SB, Filho HDF, Andrade GRS, Salerno M, Almeida LE. Exploiting the Physicochemical and Antimicrobial Properties of PHB/PEG and PHB/PEG/ALG-e Blends Loaded with Ag Nanoparticles. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15217544. [PMID: 36363134 PMCID: PMC9657507 DOI: 10.3390/ma15217544] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 06/01/2023]
Abstract
Poly(3-hydroxybutyrate) (PHB)-based films containing Poly(ethylene glycol) (PEG), esterified sodium alginate (ALG-e) and polymeric additives loaded with Ag nanoparticles (AgNPs) were obtained by a conventional casting method. AgNPs were produced in aqueous suspension and added to polymeric gels using a phase exchange technique. Composite formation was confirmed by finding the Ag peak in the XRD pattern of PHB. The morphological analysis showed that the inclusion of PEG polymer caused the occurrence of pores over the film surface, which were overshadowed by the addition of ALG-e polymer. The PHB functional groups were dominating the FTIR spectrum, whose bands associated with the crystalline and amorphous regions increased after the addition of PEG and ALG-e polymers. Thermal analysis of the films revealed a decrease in the degradation temperature of PHB containing PEG/AgNPs and PEG/ALG-e/AgNPs, suggesting a catalytic effect. The PHB/PEG/ALG-e/AgNPs film combined the best properties of water vapor permeability and hydrophilicity of the different polymers used. All samples showed good antimicrobial activity in vitro, with the greater inhibitory halo observed for the PEG/PEG/AgNPs against Gram positive S. aureus microorganisms. Thus, the PHB/PEG/ALG-e/AgNPs composite demonstrated here is a promising candidate for skin wound healing treatment.
Collapse
Affiliation(s)
- Mário R. P. da Silva
- Postgraduate Program in Materials Science and Engineering, Federal University of Sergipe-UFS, São Cristovão 49100-000, Sergipe, Brazil
| | - Robert S. Matos
- Postgraduate Program in Materials Science and Engineering, Federal University of Sergipe-UFS, São Cristovão 49100-000, Sergipe, Brazil
| | - Michael D. S. Monteiro
- Laboratory of Corrosion and Nanotechnology (LCNT), Federal University of Sergipe, São Cristovão 49100-000, Sergipe, Brazil
| | - Samuel B. Santos
- Postgraduate Program in Physiological Sciences, Federal University of Sergipe-UFS, São Cristovão 49100-000, Sergipe, Brazil
| | - Henrique D. F. Filho
- Laboratory of Synthesis of Nanomaterials and Nanoscopy (LSNN), Federal University of Amazonas-UFAM, Manaus 69077-000, Amazonas, Brazil
| | - George R. S. Andrade
- Postgraduate Program in Energy, Federal University of Espírito Santo, São Mateus 29075-910, Espírito Santo, Brazil
| | - Marco Salerno
- Institute for Globally Distributed Open Research and Education (IGDORE), Institute for Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01069 Dresden, Germany
| | - Luís E. Almeida
- Postgraduate Program in Materials Science and Engineering, Federal University of Sergipe-UFS, São Cristovão 49100-000, Sergipe, Brazil
| |
Collapse
|
18
|
Ferreira CAM, Guerreiro SFC, Valente JFA, Patrício TMF, Alves N, Mateus A, Dias JR. Advanced Face Mask Filters Based on PCL Electrospun Meshes Dopped with Antimicrobial MgO and CuO Nanoparticles. Polymers (Basel) 2022; 14:polym14163329. [PMID: 36015586 PMCID: PMC9413239 DOI: 10.3390/polym14163329] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/11/2022] [Accepted: 08/13/2022] [Indexed: 11/16/2022] Open
Abstract
The pandemic situation caused by coronavirus clearly demonstrated the need for alternatives able to protect the respiratory tract and inactivate the infectious agents. Based on this, antibacterial face-mask filters of polycaprolactone (PCL) dopped with magnesium oxide (MgO) and copper oxide (CuO) nanoparticles (NPs) were produced using an electrospinning technique. A morphological analysis of electrospun meshes evaluated the success of nanoparticles’ incorporation as well as the average fibers’ diameters (481 ± 272 nm). The performance of electrospun nanofibers was also assessed in terms of tensile strength (0.88 ± 0.25 MPa), water vapor permeability (11,178.66 ± 35.78 g·m−2·day−1), stability under wet conditions and antibacterial activity according to the standard guidelines. The filters showed structural stability up to 2 h of washing and improved antibacterial activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) for optimized concentrations of MgO and CuO NPs. Overall, electrospun meshes with antibacterial activity were successfully developed for advanced filtering applications.
Collapse
Affiliation(s)
- Carolina A. M. Ferreira
- Centre for Rapid and Sustainable Product Development (CDRSP), Instituto Politécnico de Leiria, 2030-028 Marinha Grande, Portugal
- Abel Salazar Institute of Biomedical Sciences (ICBAS), University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Centro de Estudos de Ciência Animal (CECA), Instituto de Ciências, Tecnologias e Agroambiente (ICETA) da Universidade do Porto, Praça Gomes Teixeira, Apartado 55142, 4051-401 Porto, Portugal
- Marine and Environmental Sciences Centre (MARE), ESTM, Instituto Politécnico de Leiria, 2050-641 Peniche, Portugal
| | - Sara F. C. Guerreiro
- Centre for Rapid and Sustainable Product Development (CDRSP), Instituto Politécnico de Leiria, 2030-028 Marinha Grande, Portugal
- Medical Physics Department, Portuguese Institute of Oncology (IPO-Porto), 4200-072 Porto, Portugal
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Joana F. A. Valente
- Centre for Rapid and Sustainable Product Development (CDRSP), Instituto Politécnico de Leiria, 2030-028 Marinha Grande, Portugal
| | - Tatiana M. F. Patrício
- Centre for Rapid and Sustainable Product Development (CDRSP), Instituto Politécnico de Leiria, 2030-028 Marinha Grande, Portugal
| | - Nuno Alves
- Centre for Rapid and Sustainable Product Development (CDRSP), Instituto Politécnico de Leiria, 2030-028 Marinha Grande, Portugal
| | - Artur Mateus
- Centre for Rapid and Sustainable Product Development (CDRSP), Instituto Politécnico de Leiria, 2030-028 Marinha Grande, Portugal
| | - Juliana R. Dias
- Centre for Rapid and Sustainable Product Development (CDRSP), Instituto Politécnico de Leiria, 2030-028 Marinha Grande, Portugal
- Correspondence:
| |
Collapse
|
19
|
Electrospun polycaprolactone nanofibrous membranes loaded with baicalin for antibacterial wound dressing. Sci Rep 2022; 12:10900. [PMID: 35764658 PMCID: PMC9240071 DOI: 10.1038/s41598-022-13141-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 05/20/2022] [Indexed: 11/23/2022] Open
Abstract
Due to the rise in bacterial resistance, the antibacterial extractions from Chinese herbs have been used more frequently for wound care. In this work, baicalin, an extraction from the Chinese herb Scutellaria baicalensis, was utilized as the antibacterial component in the poly(ε-caprolactone)/MXene (PCL/Ti3C2TX) hybrid nanofibrous membranes for wound dressing. The results revealed that the presence of Ti3C2TX aided in the diameter reduction of the electrospun nanofibers. The PCL hybrid membrane containing 3 wt% Ti3C2TX nanoflakes and 5 wt% baicalin exhibited the smallest mean diameter of 210 nm. Meanwhile, the antibacterial tests demonstrated that the PCL ternary hybrid nanofibers containing Ti3C2TX and baicalin exhibited adequate antibacterial activity against the Gram-positive bacterial S. aureus due to the good synergistic effects of Ti3C2TX naoflakes and baicalin. The addition of Ti3C2TX nanoflakes and baicalin could significantly improve the hydrophilicity of the membranes, resulting in the release of baicalin from the nanofibers. In addition, the cytotoxicity of the nanofibers on rat skeletal myoblast L6 cells confirmed their good compatibility with these PCL-based nanofibrous membrances. This work offers a feasible way to prepare antibacterial nanofibrous membranes using Chinese herb extraction for wound dressing applications.
Collapse
|
20
|
Rampin A, Carrabba M, Mutoli M, Eman CL, Testa G, Madeddu P, Spinetti G. Recent Advances in KEAP1/NRF2-Targeting Strategies by Phytochemical Antioxidants, Nanoparticles, and Biocompatible Scaffolds for the Treatment of Diabetic Cardiovascular Complications. Antioxid Redox Signal 2022; 36:707-728. [PMID: 35044251 DOI: 10.1089/ars.2021.0134] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Significance: Modulation of nuclear factor (erythroid-derived 2)-like 2 (Nrf2)-mediated antioxidant response is a key aspect in the onset of diabetes-related cardiovascular complications. With this review, we provide an overview of the recent advances made in the development of Nrf2-targeting strategies for the treatment of diabetes, with particular attention toward the activation of Nrf2 by natural antioxidant compounds, nanoparticles, and oxidative stress-modulating biocompatible scaffolds. Recent Advances: In the past 30 years, studies addressing the use of antioxidant therapies to treat diabetes have grown exponentially, showing promising but yet inconclusive results. Animal studies and clinical trials on the Nrf2 pathway have shown promising results, suggesting that its activation can delay or reverse some of the cardiovascular impairments in diabetes. Critical Issues: Hyperglycemia- and oscillating glucose levels-induced reactive oxygen species (ROS) accumulation is progressively emerging as a central factor in the onset and progression of diabetes-related cardiovascular complications, including endothelial dysfunction, retinopathy, heart failure, stroke, critical limb ischemia, ulcers, and delayed wound healing. In this context, accumulating evidence suggests a central role for Nrf2-mediated antioxidant response, one of the most studied cellular defensive mechanisms against ROS accumulation. Future Directions: Innovative approaches such as tissue engineering and nanotechnology are converging toward targeting oxidative stress in diabetes. Antioxid. Redox Signal. 36, 707-728.
Collapse
Affiliation(s)
- Andrea Rampin
- Laboratory of Cardiovascular Physiopathology-Regenerative Medicine, IRCCS MultiMedica, Milan, Italy
| | - Michele Carrabba
- Laboratory of Experimental Cardiovascular Medicine, University of Bristol, Bristol, England, United Kingdom
| | - Martina Mutoli
- Laboratory of Cardiovascular Physiopathology-Regenerative Medicine, IRCCS MultiMedica, Milan, Italy
| | - Charlotte L Eman
- Laboratory of Cardiovascular Physiopathology-Regenerative Medicine, IRCCS MultiMedica, Milan, Italy
| | - Gianluca Testa
- Department of Medicine and Health Sciences, "V. Tiberio" University of Molise, Campobasso, Italy.,Interdepartmental Center for Nanotechnology Research-NanoBem, University of Molise, Campobasso, Italy
| | - Paolo Madeddu
- Laboratory of Experimental Cardiovascular Medicine, University of Bristol, Bristol, England, United Kingdom
| | - Gaia Spinetti
- Laboratory of Cardiovascular Physiopathology-Regenerative Medicine, IRCCS MultiMedica, Milan, Italy
| |
Collapse
|
21
|
Jampilek J, Kralova K. Advances in Nanostructures for Antimicrobial Therapy. MATERIALS (BASEL, SWITZERLAND) 2022; 15:2388. [PMID: 35407720 PMCID: PMC8999898 DOI: 10.3390/ma15072388] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/16/2022] [Accepted: 03/22/2022] [Indexed: 02/07/2023]
Abstract
Microbial infections caused by a variety of drug-resistant microorganisms are more common, but there are fewer and fewer approved new antimicrobial chemotherapeutics for systemic administration capable of acting against these resistant infectious pathogens. Formulation innovations of existing drugs are gaining prominence, while the application of nanotechnologies is a useful alternative for improving/increasing the effect of existing antimicrobial drugs. Nanomaterials represent one of the possible strategies to address this unfortunate situation. This review aims to summarize the most current results of nanoformulations of antibiotics and antibacterial active nanomaterials. Nanoformulations of antimicrobial peptides, synergistic combinations of antimicrobial-active agents with nitric oxide donors or combinations of small organic molecules or polymers with metals, metal oxides or metalloids are discussed as well. The mechanisms of actions of selected nanoformulations, including systems with magnetic, photothermal or photodynamic effects, are briefly described.
Collapse
Affiliation(s)
- Josef Jampilek
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, 842 15 Bratislava, Slovakia
- Department of Chemical Biology, Faculty of Science, Palacky University Olomouc, Slechtitelu 27, 783 71 Olomouc, Czech Republic
| | - Katarina Kralova
- Institute of Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, 842 15 Bratislava, Slovakia;
| |
Collapse
|
22
|
Tylingo R, Kempa P, Banach-Kopeć A, Mania S. A novel method of creating thermoplastic chitosan blends to produce cell scaffolds by FDM additive manufacturing. Carbohydr Polym 2022; 280:119028. [PMID: 35027130 DOI: 10.1016/j.carbpol.2021.119028] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 12/15/2021] [Accepted: 12/15/2021] [Indexed: 11/15/2022]
Abstract
Due to its remarkable and promising biological and structural properties, chitosan has been widely studied in several potential applications in the biomedical sector. Attempts are being made to use this polymer and its properties in thermoplastics dedicated to 3D printing in FDM technology. However, chitosan can be processed only from acid solution, which limits its applications. The paper presents a new path for the production of filaments based on unstable chitosan hydrogel obtained by carbon dioxide saturation, as well as synthetic polymers such as polyvinyl alcohol and polycaprolactone. The results confirm that the absence of acid allows formation of thermally stable and printable filaments containing from 5% to 15% of chitosan, capable of reducing S. aureus and E. coli bacteria by 0.41-1.43 in logarithmic scale (56-94%) and 0.28-0.94 in logarithmic scale (36-89%), respectively.
Collapse
Affiliation(s)
- Robert Tylingo
- Chemical Faculty, Department of Chemistry, Technology and Biotechnology of Food, Gdansk University of Technology, 11/12 G. Narutowicza Str., 80-233 Gdansk, Poland.
| | - Piotr Kempa
- Chitone Sp. z o. o., 15 Pionierów Str., 84-300 Lębork, Poland.
| | - Adrianna Banach-Kopeć
- Chemical Faculty, Department of Chemistry, Technology and Biotechnology of Food, Gdansk University of Technology, 11/12 G. Narutowicza Str., 80-233 Gdansk, Poland.
| | - Szymon Mania
- Chemical Faculty, Department of Chemistry, Technology and Biotechnology of Food, Gdansk University of Technology, 11/12 G. Narutowicza Str., 80-233 Gdansk, Poland.
| |
Collapse
|
23
|
Abdel-Rashid RS, Helal DA, Alaa-Eldin AA, Abdel-Monem R. Polymeric versus lipid nanocapsules for miconazole nitrate enhanced topical delivery: in vitro and ex vivo evaluation. Drug Deliv 2022; 29:294-304. [PMID: 35037528 PMCID: PMC8765242 DOI: 10.1080/10717544.2022.2026535] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Nanocapsules can be equated to other nanovesicular systems in which a drug is entrapped in a void containing liquid core surrounded by a coat. The objective of the present study was to investigate the potential of polymeric and lipid nanocapsules (LNCs) as innovative carrier systems for miconazole nitrate (MN) topical delivery. Polymeric nanocapsules and LNCs were prepared using emulsification/nanoprecipitation technique where the effect of poly(ε-caprolactone (PCL) and lipid matrix concentrations with respect to MN were assessed. The resulted nanocapsules were examined for their average particle size, zeta potential, %EE, and in vitro drug release. Optimum formulation in both polymeric and lipidic nanocapsules was further subjected to anti-fungal activity and ex vivo permeation tests. Based on the previous results, nanoencapsulation strategy into polymeric and LNCs created formulations of MN with slow biphasic release, high %EE, and improved stability, representing a good approach for the delivery of MN. PNCs were best fitted to Higuchi’s diffusion while LNCs followed Baker and Lonsdale model in release kinetics. The encapsulated MN either in PNCs or LNCs showed higher cell viability in WISH amniotic cells in comparison with free MN. PNCs showed less ex vivo permeation. PNCs were accompanied by high stability and more amount drug deposition (32.2 ± 3.52 µg/cm2) than LNCs (12.7 ± 1.52 µg/cm2). The antifungal activity of the PNCs was high 19.07 mm compared to 11.4 mm for LNCs. In conclusion, PNCs may have an advantage over LNCs by offering dual action for both superficial and deep fungal infections.
Collapse
Affiliation(s)
- Rania S. Abdel-Rashid
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Ain Helwan, Cairo, Egypt
| | - Doaa A. Helal
- Department of Pharmaceutics, Faculty of Pharmacy, Fayoum University, Faiyum, Egypt
| | | | - Raghda Abdel-Monem
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Ain Helwan, Cairo, Egypt
| |
Collapse
|
24
|
Wang L, Zhang D, Ren Y, Guo S, Li J, Ma S, Yao M, Guan F. Injectable hyaluronic acid hydrogel loaded with BMSC and NGF for traumatic brain injury treatment. Mater Today Bio 2022; 13:100201. [PMID: 35024600 PMCID: PMC8733324 DOI: 10.1016/j.mtbio.2021.100201] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/21/2021] [Accepted: 12/29/2021] [Indexed: 12/16/2022] Open
Abstract
Injectable hydrogel has the advantage to fill the defective area and thereby shows promise as therapeutic implant or cell/drug delivery vehicle for tissue repair. In this study, an injectable hyaluronic acid hydrogel in situ dual-enzymatically cross-linked by galactose oxidase (GalOx) and horseradish peroxidase (HRP) was synthesized and optimized, and the therapeutic effect of this hydrogel encapsulated with bone mesenchymal stem cells (BMSC) and nerve growth factors (NGF) for traumatic brain injury (TBI) mice was investigated. Results from in vitro experiments showed that either tyramine-modified hyaluronic acid hydrogels (HT) or NGF loaded HT hydrogels (HT/NGF) possessed good biocompatibility. More importantly, the HT hydrogels loaded with BMSC and NGF could facilitate the survival and proliferation of endogenous neural cells probably by neurotrophic factors release and neuroinflammation regulation, and consequently improved the neurological function recovery and accelerated the repair process in a C57BL/6 TBI mice model. All these findings highlight that this injectable, BMSC and NGF-laden HT hydrogel has enormous potential for TBI and other tissue repair therapy.
Collapse
Affiliation(s)
| | | | - Yikun Ren
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Shen Guo
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Jinrui Li
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Shanshan Ma
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Minghao Yao
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Fangxia Guan
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| |
Collapse
|
25
|
Liang W, Dong Y, Shen H, Shao R, Wu X, Huang X, Sun B, Zeng B, Zhang S, Xu F. Materials science and design principles of therapeutic materials in orthopedic and bone tissue engineering. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wenqing Liang
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
| | - Yongqiang Dong
- Department of Orthopedics Xinchang People's Hospital Shaoxing China
| | - Hailiang Shen
- Department of Orthopedics Affiliated Hospital of Shaoxing University Shaoxing China
| | - Ruyi Shao
- Department of Orthopedics Zhuji People's Hospital Shaoxing China
| | - Xudong Wu
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
| | - Xiaogang Huang
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
| | - Bin Sun
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
| | - Bin Zeng
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
| | - Songou Zhang
- College of Medicine Shaoxing University Shaoxing China
| | - Fangming Xu
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
| |
Collapse
|
26
|
Zhang H, Xu Z, Mao Y, Zhang Y, Li Y, Lao J, Wang L. Integrating Porphyrinic Metal-Organic Frameworks in Nanofibrous Carrier for Photodynamic Antimicrobial Application. Polymers (Basel) 2021; 13:polym13223942. [PMID: 34833240 PMCID: PMC8625335 DOI: 10.3390/polym13223942] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 01/21/2023] Open
Abstract
The rise and spread of antimicrobial resistance is creating an ever greater challenge in wound management. Nanofibrous membranes (NFMs) incorporated with antibiotics have been widely used to remedy bacterial wound infections owing to their versatile features. However, misuse of antibiotics has resulted in drug resistance, and it remains a significant challenge to achieve both high antibacterial efficiency and without causing bacterial resistance. Here, the ‘MOF-first’ strategy was adopted, the porphyrinic metal-organic frameworks nanoparticles (PCN−224 NPs) were pre-synthesized first, and then the composite antibacterial PCN−224 NPs @ poly (ε-caprolactone) (PM) NFMs were fabricated via a facile co-electrospinning technology. This strategy allows large amounts of effective MOFs to be integrated into nanofibers to effectively eliminate bacteria without bacterial resistance and to realize a relatively fast production rate. Upon visible light (630 nm) irradiation for 30 min, the PM−25 NFMs have the best 1O2 generation performance, triggering remarkable photodynamic antibacterial effects against both S. aureus, MRSA, and E. coli bacteria with survival rates of 0.13%, 1.91%, and 2.06% respectively. Considering the photodynamic antibacterial performance of the composite nanofibrous membranes functionalized by porphyrinic MOFs, this simple approach may provide a feasible way to use MOF materials and biological materials to construct wound dressing with the versatility to serve as an antibacterial strategy in order to prevent bacterial resistance.
Collapse
Affiliation(s)
- Huiru Zhang
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China; (H.Z.); (Z.X.); (Y.M.); (Y.Z.); (J.L.); (L.W.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Zhihao Xu
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China; (H.Z.); (Z.X.); (Y.M.); (Y.Z.); (J.L.); (L.W.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Ying Mao
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China; (H.Z.); (Z.X.); (Y.M.); (Y.Z.); (J.L.); (L.W.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Yingjie Zhang
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China; (H.Z.); (Z.X.); (Y.M.); (Y.Z.); (J.L.); (L.W.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Yan Li
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China; (H.Z.); (Z.X.); (Y.M.); (Y.Z.); (J.L.); (L.W.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
- Correspondence: ; Tel.: +86-21-6779-2634
| | - Jihong Lao
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China; (H.Z.); (Z.X.); (Y.M.); (Y.Z.); (J.L.); (L.W.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Lu Wang
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China; (H.Z.); (Z.X.); (Y.M.); (Y.Z.); (J.L.); (L.W.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| |
Collapse
|
27
|
The Antimicrobial, Antioxidative, and Anti-Inflammatory Effects of Polycaprolactone/Gelatin Scaffolds Containing Chrysin for Regenerative Endodontic Purposes. Stem Cells Int 2021; 2021:3828777. [PMID: 34630572 PMCID: PMC8497129 DOI: 10.1155/2021/3828777] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 08/31/2021] [Accepted: 09/03/2021] [Indexed: 01/03/2023] Open
Abstract
The appropriate endodontic material should eliminate the infection and inflammation to provide a situation for regeneration and healing of pulp tissue besides biomineralization. Chrysin is one of the active ingredients of plant flavonoids, which has significant anti-inflammatory and antimicrobial properties. In the present study, this natural substance was evaluated for antioxidant, anti-inflammatory, and mineralization properties on dental pulp stem cells (DPSCs). SEM, FTIR, and TGA tests were used to determine the successful synthesize of chrysin-loaded scaffolds. The antimicrobial effects of the synthesized scaffold against Acinetobacter baumannii, Pseudomonas aeruginosa, Staphylococcus aureus, and Enterococcus faecalis were assessed by the agar diffusion test and live/dead assay. The proliferation of DPSCs on these scaffolds was determined by the MTT assay, DAPI staining, and DNA extraction. Moreover, the antioxidant and anti-inflammation activity of chrysin-loaded scaffolds on inflamed DPSCs was evaluated. Alkaline phosphatase activity and Alizarin Red S Stain tests were done to evaluate the mineralization of DPSCs seeded on these scaffolds. The chrysin-loaded scaffolds reported antimicrobial effects against evaluated bacterial strains. The proliferation of DPSCs seeded on these scaffolds was increased significantly (p < 0.05). The TNFα and DCF levels in inflamed DPSCs showed a significant decrease in the presence of chrysin-loaded scaffolds (p < 0.05). The ALP activity and formation of mineralized nodules of DPSCs on these scaffolds were significantly increased compared with the control group (p < 0.05). These results indicated that chrysin as an ancient therapeutic agent can accelerate the healing and regeneration of damaged pulp tissue, and this active ingredient can be a potential natural substance for regenerative endodontic procedures.
Collapse
|
28
|
The Composites of PCL and Tetranuclear Titanium(IV)-oxo Complexes as Materials Exhibiting the Photocatalytic and the Antimicrobial Activity. Int J Mol Sci 2021; 22:ijms22137021. [PMID: 34209889 PMCID: PMC8268633 DOI: 10.3390/ijms22137021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/20/2021] [Accepted: 06/27/2021] [Indexed: 01/09/2023] Open
Abstract
Excessive misuse of antibiotics and antimicrobials has led to a spread of microorganisms resistant to most currently used agents. The resulting global threats has driven the search for new materials with optimal antimicrobial activity and their application in various areas of our lives. In our research, we focused on the formation of composite materials produced by the dispersion of titanium(IV)-oxo complexes (TOCs) in poly(ε-caprolactone) (PCL) matrix, which exhibit optimal antimicrobial activity. TOCs, of the general formula [Ti4O2(OiBu)10(O2CR’)2] (R’ = PhNH2 (1), C13H9 (2)) were synthesized as a result of the direct reaction of titanium(IV) isobutoxide and 4-aminobenzoic acid or 9-fluorenecarboxylic acid. The microcrystalline powders of (1) and (2), whose structures were confirmed by infrared (IR) and Raman spectroscopy, were dispersed in PCL matrixes. In this way, the composites PCL + nTOCs (n = 5 and 20 wt.%) were produced. The structure and physicochemical properties were determined on the basis of Raman microscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), electron paramagnetic resonance spectroscopy (EPR), and UV–Vis diffuse reflectance spectroscopy (DRS). The degree of TOCs distribution in the polymer matrix was monitored by scanning electron microscopy (SEM). The addition of TOCs micro grains into the PCL matrix only slightly changed the thermal and mechanical properties of the composite compared to the pure PCL. Among the investigated PCL + TOCs systems, promising antibacterial properties were confirmed for samples of PCL + n(2) (n = 5, 20 wt.%) composites, which simultaneously revealed the best photocatalytic activity in the visible range.
Collapse
|
29
|
Ermini ML, Voliani V. Antimicrobial Nano-Agents: The Copper Age. ACS NANO 2021; 15:6008-6029. [PMID: 33792292 PMCID: PMC8155324 DOI: 10.1021/acsnano.0c10756] [Citation(s) in RCA: 131] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 03/24/2021] [Indexed: 05/21/2023]
Abstract
The constant advent of major health threats such as antibacterial resistance or highly communicable viruses, together with a declining antimicrobial discovery, urgently requires the exploration of innovative therapeutic approaches. Nowadays, strategies based on metal nanoparticle technology have demonstrated interesting outcomes due to their intrinsic features. In this scenario, there is an emerging and growing interest in copper-based nanoparticles (CuNPs). Indeed, in their pure metallic form, as oxides, or in combination with sulfur, CuNPs have peculiar behaviors that result in effective antimicrobial activity associated with the stimulation of essential body functions. Here, we present a critical review on the state of the art regarding the in vitro and in vivo evaluations of the antimicrobial activity of CuNPs together with absorption, distribution, metabolism, excretion, and toxicity (ADMET) assessments. Considering the potentiality of CuNPs in antimicrobial treatments, within this Review we encounter the need to summarize the behaviors of CuNPs and provide the expected perspectives on their contributions to infectious and communicable disease management.
Collapse
Affiliation(s)
- Maria Laura Ermini
- Center for Nanotechnology
Innovation @NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro, 12-56126 Pisa, Italy
| | - Valerio Voliani
- Center for Nanotechnology
Innovation @NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro, 12-56126 Pisa, Italy
| |
Collapse
|
30
|
Arendsen LP, Thakar R, Bassett P, Sultan AH. A double blind randomized controlled trial using copper impregnated maternity sanitary towels to reduce perineal wound infection. Midwifery 2020; 92:102858. [PMID: 33157498 DOI: 10.1016/j.midw.2020.102858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 09/23/2020] [Accepted: 10/12/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To investigate the effect of copper impregnated sanitary towels on the infection rate following vaginal delivery (VD). DESIGN Single center double blind randomized controlled trial. PARTICIPANTS Women aged 18 or over who had a sutured second-degree tear or episiotomy following VD. INTERVENTIONS All women were randomized to receive either a copper-oxide impregnated sanitary towel (study group) or a non-copper sanitary towel (control group). MAIN OUTCOME MEASURES The primary study outcome was the incidence of wound infection within a 30-day period from VD, assessed via telephone questionnaire. Secondary outcomes were length of hospital stay and risk factors of infection. RESULTS 450 women were enrolled in the study of whom 225 were randomized to the copper impregnated sanitary towel (study group) and 225 to the non-copper sanitary towel (control group) group. Follow-up rate was 98.2%. A total of 102 women (23.1%) developed an infection within 30 days following VD, 19 in the study group (8.6%) and 83 (37.4%) in the control group (P = <0.001, absolute risk reduction (ARR) of 28.8%). The incidence of superficial/deep and organ/space infections was significantly lower in the study group (7.7% vs. 30.2%, P = <0.001 and 4.6% vs. 31.5%, P = <0.001 respectively) with an ARR of 22.5% and 27.0% respectively. Multivariable analysis reported Asian ethnicity and prolonged rupture of membranes as significant risk factors; for the development of infection (OR 1.91, P = 0.03 and OR = 1.97, P = 0.04 respectively). CONCLUSIONS This is the first study to demonstrate a significant reduction in infection rate following VD with the use of copper impregnated sanitary towels.
Collapse
Affiliation(s)
- Linda Petra Arendsen
- Obstetrics and Gynaecology Department, Croydon University Hospital, 530 London Road, CR7 7YE, United Kingdom
| | - Ranee Thakar
- Obstetrics and Gynaecology Department, Croydon University Hospital, 530 London Road, CR7 7YE, United Kingdom
| | - Paul Bassett
- Statsconsultancy Ltd, 40 Longwood Lane, Amersham, Bucks, HP7 9EN, United Kingdom
| | - Abdul Hameed Sultan
- Obstetrics and Gynaecology Department, Croydon University Hospital, 530 London Road, CR7 7YE, United Kingdom; Honorary Reader, St George's University of London, Cranmer Terrace, SW17 0RE, United Kingdom.
| |
Collapse
|