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Pathi BK, Mishra S, Moharana N, Kanungo A, Mishra A, Sahu S, Dash RK, Dubey R, Das MK. Effect of Topical Silver Nanoparticle Formulation on Wound Bacteria Clearance and Healing in Patients With Infected Wounds Compared to Standard Topical Antibiotic Application: A Randomized Open-Label Parallel Clinical Trial. Cureus 2024; 16:e60569. [PMID: 38894757 PMCID: PMC11182760 DOI: 10.7759/cureus.60569] [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] [Accepted: 05/12/2024] [Indexed: 06/21/2024] Open
Abstract
BACKGROUND Infected wounds pose a special challenge for management, with an increased risk of wound chronicity, systemic infection, and the emergence of antibiotic resistance. Silver nanoparticles have multimodal effects on bacteria clearance and wound healing. This study aimed to document the efficacy of a topical silver nanoparticle-based cream on bacteria clearance and wound healing in infected wounds compared to Mupirocin. METHODS This open-label parallel randomized clinical trial allocated 86 participants with infected wounds (culture-positive) into Kadermin, silver nanoparticle-based cream arm (n=43) and Mupirocin arm (n=43) and documented the swab culture on day 5 and wound healing at day 28, along with periodic wound status using the Bates-Jensen Wound Assessment Tool. Patients received oral/systemic antibiotics and other medications for underlying diseases. The intention-to-treat principle was adopted for data analysis using the chi-square and Student t tests to document the differences between groups according to variable characteristics. RESULTS All participants completed the follow-up. On day 5, wound bacteria clearance was observed in 86% and 65.1% of the participants in the Kadermin and Mupirocin arms, respectively (p=0.023). At day 28, complete wound healing was observed in 81.4% and 37.2% of the participants in the Kadermin and Mupirocin arms, respectively (p≤0.001). No local or systemic adverse event or local reaction was observed in any of the participants. CONCLUSION Kadermin, the silver nanoparticle-based cream, has better efficacy in achieving faster wound bacteria clearance and healing in infected wounds compared to Mupirocin. This may have relevance for its use as an antibiotic-sparing agent in wound management.
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Affiliation(s)
- Basanti K Pathi
- Department of Microbiology, Kalinga Institute of Medical Sciences, Bhubaneswar, IND
| | - Subrajit Mishra
- Department of Surgery, Kalinga Institute of Medical Sciences, Bhubaneswar, IND
| | - Niranjan Moharana
- Department of Surgery, Kalinga Institute of Medical Sciences, Bhubaneswar, IND
| | - Abinash Kanungo
- Department of Surgery, Kalinga Institute of Medical Sciences, Bhubaneswar, IND
| | - Amaresh Mishra
- Department of Surgery, Kalinga Institute of Medical Sciences, Bhubaneswar, IND
| | - Subrat Sahu
- Department of Surgery, Kalinga Institute of Medical Sciences, Bhubaneswar, IND
| | - Rajesh K Dash
- Department of Microbiology, Kalinga Institute of Medical Sciences, Bhubaneswar, IND
| | - Rajan Dubey
- Department of Public Health and Technology, Health Technology Consultant, Bhopal, IND
| | - Manoja K Das
- Department of Public Health, The INCLEN Trust International, New Delhi, IND
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Abu-Baker A, Țigăran AE, Peligrad T, Ion DE, Gheoca-Mutu DE, Avino A, Hariga CS, Moraru OE, Răducu L, Jecan RC. Exploring an Innovative Approach: Integrating Negative-Pressure Wound Therapy with Silver Nanoparticle Dressings in Skin Graft Procedures. J Pers Med 2024; 14:206. [PMID: 38392639 PMCID: PMC10890209 DOI: 10.3390/jpm14020206] [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: 01/12/2024] [Revised: 02/04/2024] [Accepted: 02/09/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND Skin grafting is a helpful instrument in a plastic surgeon's arsenal. Several types of dressings were designed to facilitate the process of graft integration. Negative-pressure wound therapy is a proven dressing method, enhancing graft survival through several mechanisms: aspiration of secretions, stimulation of neoangiogenesis, and promotion of an anti-inflammatory environment. Silver nanoparticle dressings also bring multiple benefits by bearing an antimicrobial effect and providing a humid medium, which are favorable for epithelialization. The combination of NPWT (negative-pressure wound therapy) with AgNPs (silver nanoparticles) has not been widely studied. MATERIALS AND METHODS This study aimed to compare the outcomes of silver nanoparticle sheets with the combination of negative-pressure wound therapy and silver nanoparticle dressings. We conducted a comparative prospective study on 80 patients admitted to the Plastic Surgery Department of "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital between 1st of January 2020 and 31st of December 2022. The study population was randomized to receive either silver nanoparticle dressings or negative-pressure wound therapy (NPWT) combined with silver nanoparticle dressings. Various parameters were monitored, including patient comorbidities and graft-related data such as defect etiology, graft integration, and graft size. Dressings were changed, and graft status was evaluated at 7, 10, and 14 days postoperatively. Additionally, baseline C-reactive protein (CRP) levels were measured before surgery and 7, 10, and 14 days postoperatively. RESULTS The study demonstrated an enhanced integration of skin grafts at all evaluation stages when employing NPWT combined with AgNPs, particularly evident 10 days post operation. Significant variations in graft integration were also observed based on factors such as diabetes, cardiovascular disease, graft size, or the origin of the grafted defect. Moreover, dynamic C-reactive protein monitoring showed a statistically significant decrease in CRP levels 10 days post operation among patients treated with NPWT in conjunction with silver dressing, consistent with the nearly complete integration of skin grafts at this evaluation threshold. CONCLUSION Several factors influence the postoperative evolution of split-skin grafts. Postoperative dressings target local factors to enhance graft integration further. Our research demonstrated that the innovative combination of NPWT-assisted dressings, complemented by a silver nanoparticle sheet, resulted in improved benefits for graft integration and the alleviation of systemic inflammation.
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Affiliation(s)
- Abdalah Abu-Baker
- Doctoral School, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Andrada-Elena Țigăran
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Teodora Peligrad
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Daniela-Elena Ion
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Daniela-Elena Gheoca-Mutu
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
- Discipline of Anatomy, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
| | - Adelaida Avino
- Doctoral School, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Cristian-Sorin Hariga
- Department of Plastic Surgery, Emergency Clinical Hospital, 014461 Bucharest, Romania
- Discipline of Plastic Surgery, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
| | - Oriana Elena Moraru
- Discipline of Cardiovascular Surgery, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
- Department of Vascular Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Laura Răducu
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
- Discipline of Plastic Surgery, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
| | - Radu-Cristian Jecan
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
- Discipline of Plastic Surgery, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
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Shaabani A, Bizari D, Khoshmohabat H. PEGylated curcumin-loaded poly(vinyl alcohol)/Zwitterionic poly(sulfobetaine vinylimidazole)-grafted chitosan nanofiber as a second-degree burn wound dressing. Carbohydr Polym 2023; 321:121307. [PMID: 37739537 DOI: 10.1016/j.carbpol.2023.121307] [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: 05/09/2023] [Revised: 08/12/2023] [Accepted: 08/15/2023] [Indexed: 09/24/2023]
Abstract
Burn injuries damage skin function and increased the risk of infection. Using natural-inspired antibiotic-free nanofibrous in wound healing has attracted increasing attention. Here, mPEG-Curcumin (mPEG-CUR) was synthesized through a novel, cheap, and high-efficiency method, and incorporated onto poly(vinyl alcohol) (PVA)/zwitterionic poly(sulfobetaine vinylimidazole)-grafted chitosan (CS-g-PNVIS) nanofiber. Due to the lack of electrospinning capability of CS-g-PNVIS and its brittleness, to obtain nanofibers with uniform and bead-free morphology, PVA was used as an electrospinning aid polymer, so that the prepared nanofibers have suitable mechanical properties with an average diameter between 115 ± 18-157 ± 39 nm. The heat-treated nanofibers have adequate swelling and dimensional stability. Time-killing assay proved the antibacterial activity of the mPEG-CUR-loaded nanofibers towards Gram-positive and Gram-negative bacterium. The MTT investigation illustrated the non-cytotoxicity and biocompatibility of the nanofibers. In vivo studies exhibited significant improvement in the mean wound area closure by applying mPEG-CUR nanofibers. The mPEG-CUR-loaded nanofibers showed the highest antioxidant (86 %) power after 40 min. Moreover, nanofibers possess a desirable WVT rate (3.4 ± 0.24-5.5 ± 0.3 kg/m2.d) and good breathability and had the potential to supply a suitable moist environment in the wounded area. This approach can be the beginning of a new path in designing a new generation of nanofiber mats for wound healing applications.
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Affiliation(s)
- Alireza Shaabani
- Trauma Research Center, Clinical Sciences Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Davood Bizari
- Trauma Research Center, Clinical Sciences Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Hadi Khoshmohabat
- Trauma Research Center, Clinical Sciences Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Gonzalez-Valdivieso J, Vallejo R, Rodriguez-Rojo S, Santos M, Schneider J, Arias FJ, Girotti A. CD44-targeted nanoparticles for co-delivery of docetaxel and an Akt inhibitor against colorectal cancer. BIOMATERIALS ADVANCES 2023; 154:213595. [PMID: 37639856 DOI: 10.1016/j.bioadv.2023.213595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 07/24/2023] [Accepted: 08/19/2023] [Indexed: 08/31/2023]
Abstract
New strategies to develop drug-loaded nanocarriers with improved therapeutic efficacy are needed for cancer treatment. Herein we report a novel drug-delivery nanosystem comprising encapsulation of the chemotherapeutic drug docetaxel (DTX) and recombinant fusion of a small peptide inhibitor of Akt kinase within an elastin-like recombinamer (ELR) vehicle. This combined approach is also precisely targeted to colorectal cancer cells by means of a chemically conjugated DNA aptamer specific for the CD44 tumor marker. This 53 nm dual-approach nanosystem was found to selectively affect cell viability (2.5 % survival) and proliferation of colorectal cancer cells in vitro compared to endothelial cells (50 % survival), and to trigger both apoptosis- and necrosis-mediated cell death. Our findings also show that the nanohybrid particles remain stable under physiological conditions, trigger sustained drug release and possess an adequate pharmacokinetic profile after systemic intravenous administration. In vivo assays showed that these dual-approach nanohybrids significantly reduced the number of tumor polyps along the colorectal tract in a murine colorectal cancer model. Furthermore, systemic administration of advanced nanohybrids induced tissue recovery by improving the morphology of gastrointestinal crypts and the tissue architecture. Taken together, these findings indicate that our strategy of an advanced dual-approach nanosystem allows us to achieve successful controlled release of chemotherapeutics in cancer cells and may have a promising potential for colorectal cancer treatment.
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Affiliation(s)
- Juan Gonzalez-Valdivieso
- Smart Devices for NanoMedicine Group, University of Valladolid, LUCIA Building, Valladolid, Spain
| | - Reinaldo Vallejo
- Smart Devices for NanoMedicine Group, University of Valladolid, LUCIA Building, Valladolid, Spain; BioEcoUVa, Research Institute on Bioeconomy, High Pressure Process Group, University of Valladolid, Department of Chemical Engineering and Environmental Technology, Escuela de Ingenierías Industriales, Sede Mergelina, Valladolid, Spain
| | - Soraya Rodriguez-Rojo
- BioEcoUVa, Research Institute on Bioeconomy, High Pressure Process Group, University of Valladolid, Department of Chemical Engineering and Environmental Technology, Escuela de Ingenierías Industriales, Sede Mergelina, Valladolid, Spain
| | - Mercedes Santos
- BIOFORGE Research Group (Group for Advanced Materials and Nanobiotechnology), University of Valladolid, CIBER-BBN, LUCIA Building, Valladolid, Spain
| | - Jose Schneider
- Smart Devices for NanoMedicine Group, University of Valladolid, LUCIA Building, Valladolid, Spain; Department of Obstetrics & Gynecology, University of Valladolid, School of Medicine, Valladolid, Spain
| | - Francisco Javier Arias
- Smart Devices for NanoMedicine Group, University of Valladolid, LUCIA Building, Valladolid, Spain; Unidad de excelencia Instituto de Biomedicina y Genética Molecular de Valladolid (IBGM), University of Valladolid CSIC, Valladolid, Spain.
| | - Alessandra Girotti
- Smart Devices for NanoMedicine Group, University of Valladolid, LUCIA Building, Valladolid, Spain; Unidad de excelencia Instituto de Biomedicina y Genética Molecular de Valladolid (IBGM), University of Valladolid CSIC, Valladolid, Spain.
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Liu W, Zu L, Wang S, Li J, Fei X, Geng M, Zhu C, Shi H. Tailored biomedical materials for wound healing. BURNS & TRAUMA 2023; 11:tkad040. [PMID: 37899884 PMCID: PMC10605015 DOI: 10.1093/burnst/tkad040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 05/25/2023] [Accepted: 06/30/2023] [Indexed: 10/31/2023]
Abstract
Wound healing is a long-term, multi-stage biological process that mainly includes haemostatic, inflammatory, proliferative and tissue remodelling phases. Controlling infection and inflammation and promoting tissue regeneration can contribute well to wound healing. Smart biomaterials offer significant advantages in wound healing because of their ability to control wound healing in time and space. Understanding how biomaterials are designed for different stages of wound healing will facilitate future personalized material tailoring for different wounds, making them beneficial for wound therapy. This review summarizes the design approaches of biomaterials in the field of anti-inflammatory, antimicrobial and tissue regeneration, highlights the advanced precise control achieved by biomaterials in different stages of wound healing and outlines the clinical and practical applications of biomaterials in wound healing.
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Affiliation(s)
- Wenhui Liu
- Clinical laboratory, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Lihua Zu
- Clinical laboratory, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
| | - Shanzheng Wang
- Department of Orthopaedics, Zhongda Hospital, Medical School of Southeast University, 87 Ding Jia Qiao Road, Nanjing, Jiangsu 210009, P.R. China
| | - Jingyao Li
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xiaoyuan Fei
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Meng Geng
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Chunlei Zhu
- Department of Orthopaedics, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
| | - Hui Shi
- Clinical laboratory, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
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Alam MR, Shahid MA, Alimuzzaman S, Hasan MM, Hoque ME. Electrospun bio-nano hybrid scaffold from collagen, Nigella sativa, and chitosan for skin tissue engineering application. J BIOACT COMPAT POL 2023. [DOI: 10.1177/08839115231162365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
The new sophisticated tissue engineering focused on producing nanocomposite with different morphologies for rapid tissue regeneration. In this case, utilizing nanotechnology with the incorporation of bio-based materials have achieved the interest of researchers. This research aims at developing hybrid bio-nano scaffold with collagen (Col), Nigella sativa ( Ns), and chitosan (Cs) by a bi-layered green electrospinning on polyvinyl chloride (PVA) layer in a different ratio for tissue regeneration. Field emission electron microscopy (FE-SEM), fourier transform infrared spectroscopy (FTIR), moisture management properties, tensile properties, antibacterial activity, and wound healing assessment of the fabricated hybrid bio-nano scaffolds were employed to investigate the different properties of hybrid bio-nano scaffolds. The results exhibit that the sample with Col (50%) and Ns (25%), Cs (25%) has good fiber formation with a mean diameter of 381 ± 22 nm. This bio-nano scaffold has a porosity of 78 ± 6.9% and a fast absorbing-slow drying nature for providing a moist environment. The antibacterial zones of inhibition (ZOI) against Staphylococcus aureus and Escherichia coli were 10 ± 1.3 and 8 ± 0.9 mm respectively, and appeared to be adequate to inhibit bacterial action. The wound healing assessment states that 84 ± 3.8% of wound closure occurs in just 10 days, which is quicker (1.5 times) than the duration of a commercial bandage. All of the findings suggest that the bio-nano scaffold could be useful for skin tissue engineering.
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Jung O, Barbeck M, Fan LU, Korte F, Zhao C, Krastev R, Pantermehl S, Xiong X. Republication: In Vitro and Ex Vivo Analysis of Collagen Foams for Soft and Hard Tissue Regeneration. In Vivo 2023; 37:320-328. [PMID: 36593025 PMCID: PMC9843770 DOI: 10.21873/invivo.13082] [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: 03/19/2021] [Revised: 06/18/2021] [Accepted: 06/23/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND/AIM The aim of this study was the conception, production, material analysis and cytocompatibility analysis of a new collagen foam for medical applications. MATERIALS AND METHODS After the innovative production of various collagen sponges from bovine sources, the foams were analyzed ex vivo in terms of their structure (including pore size) and in vitro in terms of cytocompatibility according to EN ISO 10993-5/-12. In vitro, the collagen foams were compared with the established biomaterials cerabone and Jason membrane. Materials cerabone and Jason membrane. RESULTS Collagen foams with different compositions were successfully produced from bovine sources. Ex vivo, the foams showed a stable and long-lasting primary structure quality with a bubble area of 1,000 to 2,000 μm2 In vitro, all foams showed sufficient cytocompatibility. CONCLUSION Collagen sponges represent a promising material for hard and soft tissue regeneration. Future studies could focus on integrating and investigating different additives in the foams.
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Affiliation(s)
- Ole Jung
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, Rostock, Germany
| | - Mike Barbeck
- BerlinAnalytix GmbH, Berlin, Germany
- Department of Ceramic Materials, Chair of Advanced Ceramic Materials, Institute for Materials Science and Technologies, Technical University Berlin, Berlin, Germany
| | - L U Fan
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany
| | - Fabian Korte
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany
| | - Cuifeng Zhao
- Faculty of Applied Chemistry, Reutlingen University, Reutlingen, Germany
| | - Rumen Krastev
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany
- Faculty of Applied Chemistry, Reutlingen University, Reutlingen, Germany
| | - Sven Pantermehl
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, Rostock, Germany
| | - Xin Xiong
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany
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Cao D, Ding J. Recent advances in regenerative biomaterials. Regen Biomater 2022; 9:rbac098. [PMID: 36518879 PMCID: PMC9745784 DOI: 10.1093/rb/rbac098] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/23/2022] [Accepted: 12/01/2022] [Indexed: 07/22/2023] Open
Abstract
Nowadays, biomaterials have evolved from the inert supports or functional substitutes to the bioactive materials able to trigger or promote the regenerative potential of tissues. The interdisciplinary progress has broadened the definition of 'biomaterials', and a typical new insight is the concept of tissue induction biomaterials. The term 'regenerative biomaterials' and thus the contents of this article are relevant to yet beyond tissue induction biomaterials. This review summarizes the recent progress of medical materials including metals, ceramics, hydrogels, other polymers and bio-derived materials. As the application aspects are concerned, this article introduces regenerative biomaterials for bone and cartilage regeneration, cardiovascular repair, 3D bioprinting, wound healing and medical cosmetology. Cell-biomaterial interactions are highlighted. Since the global pandemic of coronavirus disease 2019, the review particularly mentions biomaterials for public health emergency. In the last section, perspectives are suggested: (i) creation of new materials is the source of innovation; (ii) modification of existing materials is an effective strategy for performance improvement; (iii) biomaterial degradation and tissue regeneration are required to be harmonious with each other; (iv) host responses can significantly influence the clinical outcomes; (v) the long-term outcomes should be paid more attention to; (vi) the noninvasive approaches for monitoring in vivo dynamic evolution are required to be developed; (vii) public health emergencies call for more research and development of biomaterials; and (viii) clinical translation needs to be pushed forward in a full-chain way. In the future, more new insights are expected to be shed into the brilliant field-regenerative biomaterials.
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Affiliation(s)
- Dinglingge Cao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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Analyzing and mapping the research status, hotspots, and frontiers of biological wound dressings: An in-depth data-driven assessment. Int J Pharm 2022; 629:122385. [DOI: 10.1016/j.ijpharm.2022.122385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/31/2022] [Accepted: 11/06/2022] [Indexed: 11/13/2022]
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Alam MR, Shahid MA, Alimuzzaman S, Khan AN. Sources, extractions and applications of bio-maker collagen- A review. BIOMEDICAL ENGINEERING ADVANCES 2022. [DOI: 10.1016/j.bea.2022.100064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Alsakhawy SA, Baghdadi HH, El-Shenawy MA, Sabra SA, El-Hosseiny LS. Encapsulation of thymus vulgaris essential oil in caseinate/gelatin nanocomposite hydrogel: In vitro antibacterial activity and in vivo wound healing potential. Int J Pharm 2022; 628:122280. [DOI: 10.1016/j.ijpharm.2022.122280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/03/2022] [Accepted: 10/07/2022] [Indexed: 10/31/2022]
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Nanoparticle-Containing Wound Dressing: Antimicrobial and Healing Effects. Gels 2022; 8:gels8060329. [PMID: 35735673 PMCID: PMC9222824 DOI: 10.3390/gels8060329] [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] [Received: 04/22/2022] [Revised: 05/20/2022] [Accepted: 05/22/2022] [Indexed: 01/25/2023] Open
Abstract
The dressings containing nanoparticles of metals and metal oxides are promising types of materials for wound repair. In such dressings, biocompatible and nontoxic hydrophilic polymers are used as a matrix. In the present review, we take a look at the anti-microbial effect of the nanoparticle-modified wound dressings against various microorganisms and evaluate their healing action. A detailed analysis of 31 sources published in 2021 and 2022 was performed. Furthermore, a trend for development of modern antibacterial wound-healing nanomaterials was shown as exemplified in publications starting from 2018. The review may be helpful for researchers working in the areas of biotechnology, medicine, epidemiology, material science and other fields aimed at the improvement of the quality of life.
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Teoh JH, Tay SM, Fuh J, Wang CH. Fabricating scalable, personalized wound dressings with customizable drug loadings via 3D printing. J Control Release 2021; 341:80-94. [PMID: 34793918 DOI: 10.1016/j.jconrel.2021.11.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 09/14/2021] [Accepted: 11/10/2021] [Indexed: 12/13/2022]
Abstract
In recent times, 3D printing has been gaining traction as a fabrication platform for customizable drug dosages as a form of personalized medicine. While this has been recently demonstrated as oral dosages, there is potential to provide the same customizability and personalization as topical applications for wound healing. In this paper, the application of 3D printing to fabricate hydrogel wound dressings with customizable architectures and drug dosages was investigated. Chitosan methacrylate was synthesized and mixed with Lidocaine Hydrochloride and Levofloxacin respectively along with a photoinitiator before being used to print wound dressings of various designs. These designs were then investigated for their effect on drug release rates and profiles. Our results show the ability of 3D printing to customize drug dosages and drug release rates through co-loading different drugs at various positions and varying the thickness of drug-free layers over drug-loaded layers in the wound dressing respectively. Two scale-up approaches were also investigated for their effects on drug release rates from the wound dressing. The influence that each wound dressing design has on the release profile of drugs was also shown by fitting them with drug release kinetic models. This study thus shows the feasibility of utilizing 3D printing to fabricate wound dressings with customizable shapes, drug dosage and drug release rates that can be tuned according to the patient's requirements.
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Affiliation(s)
- Jia Heng Teoh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Sook Muay Tay
- Department of Surgical Intensive Care, Division of Anaesthesiology and Perioperative Medicine, Singapore General Hospital, Outram Road, 169608, Singapore
| | - Jerry Fuh
- Department of Mechanical Engineering, National University of Singapore, 117575, Singapore
| | - Chi-Hwa Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117585, Singapore.
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Gao K, Wang X, Wang Z, He L, Lin J, Bai Z, Jiang K, Huang S, Zheng W, Liu L. Design of novel functionalized collagen-chitosan-MBG scaffolds for enhancing osteoblast differentiation in BMSCs. Biomed Mater 2021; 16. [PMID: 34670204 DOI: 10.1088/1748-605x/ac3146] [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: 07/08/2021] [Accepted: 10/20/2021] [Indexed: 11/12/2022]
Abstract
Collagen and chitosan are two different kinds of natural biodegradable polymers commonly used in the regeneration of bone defects. Mesoporous bioactive glass (MBG) is a type of favorable bone filler which can effectively constitute an enlarged microenvironment to facilitate an exchange of important factors between the cells and scaffolds. Here we prepared a collagen-chitosan-MBG (C-C-MBG) scaffold which displayed significantly increased proliferation, differentiation and mineralization in bone mesenchymal stem cells (BMSCs). Additionally, we found that the scaffold can stimulate extra-cellular signal regulated kinase 1/2 (Erk1/2) activated Runx2 pathway, which is the predominant signaling pathway involved in osteoblast differentiation. Consistently, we observed that the scaffold can markedly enhance the expression ofType I collagen, Osteopontin(Opn), andRunx2, which are important osteoblastic marker genes implicated in the process of osteoblast differentiation. Therefore, we conclude that the composite scaffold can significantly promote the differentiation of BMSCs into osteoblasts by activating Erk1/2-Runx2 pathway. Our finding thereby implies that the C-C-MBG scaffold can possibly act as a potential biomaterial in the bone regeneration.
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Affiliation(s)
- Kai Gao
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China.,Kunming Sanatorium, Kunming, Yunnan 650000, People's Republic of China
| | - Xiaoyan Wang
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China
| | - Zhonghua Wang
- Kunming Sanatorium, Kunming, Yunnan 650000, People's Republic of China
| | - Lijiao He
- Army Medical University, Chongqing 400038, People's Republic of China
| | | | | | - Kai Jiang
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China
| | - Shan Huang
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China
| | - Weijia Zheng
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China
| | - Long Liu
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China
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15
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Qiu Y, Sun X, Lin X, Yi W, Jiang J. An injectable metal nanoparticle containing cellulose derivative-based hydrogels: Evaluation of antibacterial and in vitro-vivo wound healing activity in children with burn injuries. Int Wound J 2021; 19:666-678. [PMID: 34472709 PMCID: PMC8874106 DOI: 10.1111/iwj.13664] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/14/2021] [Accepted: 07/25/2021] [Indexed: 01/07/2023] Open
Abstract
The preparation of hydrogels for wound healing properties with high antibacterial activities and good biosafety concurrently can be relatively challenging. For addressing these issues, we report on the synthesis and characterisation of a nanocomposite hydrogel dressing by introducing the silver nanoparticles in hydroxypropyl methylcellulose-hydroxyapatite scaffold hydrogel (HMC-HA/AgNPs). The different concentrations of AgNPs in HMC-HA/AgNPs hydrogels were confirmed by swelling ratio, degradation, and gelatin time. The synthesised HMC-HA/AgNPs hydrogels were further characterised using the UV-visible, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectrum, and X-ray diffraction. The results showed that the novel HMC-HA/AgNPs hydrogel exhibited a porous 3D network and high mechanical properties because of the inter-molecular and intra-molecular interactions. The AgNPs give the HMC-HA hydrogels excellent antibacterial activities against both Staphylococcus aureus and Escherichia coli, without any chemical reductant and cross-linking agent required endows the hydrogel high biocompatibility. More importantly, HMC-HA/AgNPs effectively repaired wound defects in mice models, and wound healing reached 94.5 ± 1.4% within 16 days. The HMC-HA hydrogel with AgNPs showed excellent antimicrobial activity and burn wound healing. Therefore, these HMC-HA/AgNPs hydrogels have great potential as an injectable hydrogel for wound healing activity in children with burn injuries.
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Affiliation(s)
- Yuming Qiu
- Department of Ophthalmology, Yantai Yantaishan Hospital, Yantai, China
| | - Xiuxiang Sun
- Department of Respiratory Medicine, Yantai Qishan Hospital, Yantai, China
| | - Xiaoli Lin
- Department of Acupuncture, massage and rehabilitation, Penglai Traditional Chinese Medicine Hospital, Penglai, China
| | - Wenying Yi
- Department of General Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Jianye Jiang
- Department of Pediatrics, Chengyang District People's Hospital of Qingdao, Qingdao, China
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16
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Yan M, Zhang Y, Chang S. Chitosan Nanoparticles Loaded with TGF- β1 Inhibit Cervical Cancer Cell Progression Through Down-Regulation of MicroRNA-155 and Activation of Tim-3 Pathway. J Biomed Nanotechnol 2021; 17:1850-1857. [PMID: 34688330 DOI: 10.1166/jbn.2021.3146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Chemically modified chitosan nanoparticles (NPs) are capable of releasing their own substances to target cells or tissues, improving microenvironment and promoting wound healing. This study aimed to explore the molecular mechanism underlying chitosan NPs loaded with TGF-β1 participating in cervical cancer (CC) progression. TGF-β1-loaded-chitosan NPs were prepared and particle size distribution, zeta potential and encapsulation efficiency of NPs were determined. MTT assay assessed the toxicity of NPs to macrophages. CC cells were co-cultured with TGF-β1-loaded chitosan NPs (experimental group) or pure chitosan NPs (control group) and cells were cultured alone to produce control group. After treatment, flow cytometry was conducted to detect apoptosis and cycle. Cancer cell migration was evaluated by Transwell assay, and miR-155 and Tim-3 expression was determined. At a ratio of 2:1 chitosan and TGF-β1, the particle size was102.65±11.98 nm, which was smallest, with high encapsulation rate of 81.26%, and low potential of 1.46±1.71. NP toxicity increased as concentration rose and relative cell proliferation rate was >80%, indicated as non-toxic. CC tissues had positive expression of CD163 and TGF-β1 (95%) (p < 0.05). Treatment with TGF-β1-loaded chitosan NPs induced increased apoptosis rate of 9.13±2.15%, reduced migration (67.65±9.91) and invaded cells (19.98±3.41), causing cell accumulation in the S phase when compared to the blank and control groups (p < 0.05). Besides, experimental group exhibited lower expression of miR-155 (0.39±0.59) and higher expression of Tim-3 (2.87± 0.51), which was higher than the blank group and control group. The optimal concentration ratio for producing TGF-β1-loaded chitosan NPs was 2:1, with less toxicity. The composite NPs suppressed malignant characteristics of CC cells through down-regulation of miR-155 and activation of Tim-3 signal pathway on the surface of macrophages, promoting secretion of macrophage inflammatory factors.
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Affiliation(s)
- Meiling Yan
- Department of Obstetrics and Gynecology, The First People's Hospital of Shangqiu City, 476100, Henan, China
| | - Yali Zhang
- Department of Obstetrics and Gynecology, The First People's Hospital of Shangqiu City, 476100, Henan, China
| | - Shanshan Chang
- Department of Obstetrics and Gynecology, The First People's Hospital of Shangqiu City, 476100, Henan, China
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17
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Yougbaré S, Mutalik C, Okoro G, Lin IH, Krisnawati DI, Jazidie A, Nuh M, Chang CC, Kuo TR. Emerging Trends in Nanomaterials for Antibacterial Applications. Int J Nanomedicine 2021; 16:5831-5867. [PMID: 34475754 PMCID: PMC8405884 DOI: 10.2147/ijn.s328767] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 08/04/2021] [Indexed: 01/11/2023] Open
Abstract
Around the globe, surges of bacterial diseases are causing serious health threats and related concerns. Recently, the metal ion release and photodynamic and photothermal effects of nanomaterials were demonstrated to have substantial efficiency in eliminating resistance and surges of bacteria. Nanomaterials with characteristics such as surface plasmonic resonance, photocatalysis, structural complexities, and optical features have been utilized to control metal ion release, generate reactive oxygen species, and produce heat for antibacterial applications. The superior characteristics of nanomaterials present an opportunity to explore and enhance their antibacterial activities leading to clinical applications. In this review, we comprehensively list three different antibacterial mechanisms of metal ion release, photodynamic therapy, and photothermal therapy based on nanomaterials. These three different antibacterial mechanisms are divided into their respective subgroups in accordance with recent achievements, showcasing prospective challenges and opportunities in clinical, environmental, and related fields.
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Affiliation(s)
- Sibidou Yougbaré
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
- Institut de Recherche en Sciences de la Santé (IRSS-DRCO)/Nanoro, Ouagadougou, Burkina Faso
| | - Chinmaya Mutalik
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
| | - Goodluck Okoro
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
| | - I-Hsin Lin
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
| | | | - Achmad Jazidie
- Department of Electrical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, 60111, Indonesia
- Universitas Nahdlatul Ulama Surabaya, Surabaya, 60237, Indonesia
| | - Mohammad Nuh
- Universitas Nahdlatul Ulama Surabaya, Surabaya, 60237, Indonesia
- Department of Biomedical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, 60111, Indonesia
| | - Che-Chang Chang
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
- International Ph.D. Program for Translational Science, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Tsung-Rong Kuo
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
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18
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Jung O, Barbeck M, Fan LU, Korte F, Zhao C, Krastev R, Pantermehl S, Xiong X. In Vitro and Ex Vivo Analysis of Collagen Foams for Soft and Hard Tissue Regeneration. In Vivo 2021; 35:2541-2549. [PMID: 34410941 DOI: 10.21873/invivo.12536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/18/2021] [Accepted: 06/23/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND/AIM The aim of this study was the conception, production, material analysis and cytocompatibility analysis of a new collagen foam for medical applications. MATERIALS AND METHODS After the innovative production of various collagen sponges from bovine sources, the foams were analyzed ex vivo in terms of their structure (including pore size) and in vitro in terms of cytocompatibility according to EN ISO 10993-5/-12. In vitro, the collagen foams were compared with the established soft and hard tissue materials cerabone and Jason membrane (both botiss biomaterials GmbH, Zossen, Germany). RESULTS Collagen foams with different compositions were successfully produced from bovine sources. Ex vivo, the foams showed a stable and long-lasting primary structure quality with a bubble area of 1,000 to 2,000 μm2 In vitro, all foams showed sufficient cytocompatibility. CONCLUSION Collagen sponges represent a promising material for hard and soft tissue regeneration. Future studies could focus on integrating and investigating different additives in the foams.
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Affiliation(s)
- Ole Jung
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, Rostock, Germany
| | - Mike Barbeck
- BerlinAnalytix GmbH, Berlin, Germany.,Department of Ceramic Materials, Chair of Advanced Ceramic Materials, Institute for Materials Science and Technologies, Technical University Berlin, Berlin, Germany
| | - L U Fan
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany
| | - Fabian Korte
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany
| | - Cuifeng Zhao
- Faculty of Applied Chemistry, Reutlingen University, Reutlingen, Germany
| | - Rumen Krastev
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany.,Faculty of Applied Chemistry, Reutlingen University, Reutlingen, Germany
| | - Sven Pantermehl
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, Rostock, Germany
| | - Xin Xiong
- BerlinAnalytix GmbH, Berlin, Germany;
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19
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Yang J, Huang Y, Dai J, Shi X, Zheng Y. A sandwich structure composite wound dressing with firmly anchored silver nanoparticles for severe burn wound healing in a porcine model. Regen Biomater 2021; 8:rbab037. [PMID: 34350029 PMCID: PMC8329475 DOI: 10.1093/rb/rbab037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/25/2021] [Accepted: 06/11/2021] [Indexed: 12/16/2022] Open
Abstract
Wounds may remain open for a few weeks in severe burns, which provide an entry point for pathogens and microorganisms invading. Thus, wound dressings with long-term antimicrobial activity are crucial for severe burn wound healing. Here, a sandwich structure composite wound dressing anchored with silver nanoparticles (AgNPs) was developed for severe burn wound healing. AgNPs were in situ synthesized on the fibers of chitosan nonwoven fabric (CSNWF) as the interlayer of wound dressing for sustained release of silver ion. The firmly anchored AgNPs could prevent its entry into the body, thereby eliminating the toxicity of nanomaterials. The outer layer was a polyurethane membrane, which has a nanoporous structure that could maintain free transmission of water vapor. Chitosan/collagen sponge was selected as the inner layer because of its excellent biocompatibility and biodegradability. The presence of AgNPs in the CSNWF was fully characterized, and the high antibacterial activity of CSNWF/AgNPs was confirmed by against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. The superior wound healing effect on deep dermal burns of presented composite wound dressing was demonstrated in a porcine model. Our finding suggested that the prepared AgNPs doped sandwich structure composite wound dressing has great potential application in severe wound care.
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Affiliation(s)
- Jianmin Yang
- Department of Biomedical Engineering, College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China.,Fujian Key Lab of Medical Instrument and Biopharmaceutical Technology, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Yufeng Huang
- Department of Biomedical Engineering, College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China
| | - Jiajia Dai
- Department of Biomedical Engineering, College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China
| | - Xianai Shi
- Department of Biomedical Engineering, College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China.,Fujian Key Lab of Medical Instrument and Biopharmaceutical Technology, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Yunquan Zheng
- Fujian Key Lab of Medical Instrument and Biopharmaceutical Technology, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China.,Institute of Pharmaceutical Biotechnology and Engineering, College of Chemistry, Fuzhou University, No. 2 Xueyuan Road, Fuzhou 350108, China
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20
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Rofeal M, El-Malek FA, Qi X. In vitroassessment of green polyhydroxybutyrate/chitosan blend loaded with kaempferol nanocrystals as a potential dressing for infected wounds. NANOTECHNOLOGY 2021; 32:375102. [PMID: 33853056 DOI: 10.1088/1361-6528/abf7ee] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 04/14/2021] [Indexed: 05/23/2023]
Abstract
Despite the major medical advancements in recent decades, treating infected wounds successfully remains a challenge. In this research, a functional blend of Polyhydroxybutyrate (PHB) and Chitosan (Cs) was developed for wound infection mitigation with tailored biological and physicochemical properties. Water insoluble kaempferol (KPF) was pre-formulated to water soluble KPF nanocrystals (KPF-NCs) with fine particle size of 145 ± 11 nm, and high colloidal stability (-31 ± 0.4 mV) to improve its drug transdermal delivery. PHB-Cs-KPF-NCs (1:2 ratio) film owned the best physical properties in terms of high breathability, thermal stability and mechanical strength (33 ± 1 MPa). Besides, XRD and FTIR findings indicated the interaction between Cs, PHB and KPF, reducing the film crystallinity. The scanning electron microscopy of the film displayed a highly interconnected porous morphology. KPF-NCs were integrated in PHB-Cs matrix with a marked encapsulation efficiency of 96.6%. The enhanced drug-loading film showed a sustain release pattern of KPF-NCs over 48 h. Interestingly, the developed blend possessed an impressive blood clotting capacity within 20 min. Furthermore, we presented a new naturally-sourced mixture of Cs+KPF-NCs with powerful antibacterial effects against MDRStaphylococcus aureusandAcentibacter baumanniiat very low concentrations. The membrane evidenced a remarkable antibacterial naturein vitrowith almost 100% cell viability reduction against the study strains after 48 h. By virtue of these advantages, this green blend is highly proposed for optimal wound care.
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Affiliation(s)
- Marian Rofeal
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, People's Republic of China
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria 21521, Egypt
| | - Fady Abd El-Malek
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, People's Republic of China
| | - Xianghui Qi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, People's Republic of China
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21
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The Kinetics of Chitosan Degradation in Organic Acid Solutions. Mar Drugs 2021; 19:md19050236. [PMID: 33922254 PMCID: PMC8145880 DOI: 10.3390/md19050236] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 12/30/2022] Open
Abstract
This paper presents a comparative study on chitosan degradation in organic acid solutions according to their different dissociation characteristics. More precisely, the aim of the study was to determine the kinetics of the degradation process depending on the different acid dissociation constants (pKa values). The scientists involved in chitosan to date have focused mainly on acetic acid solutions. Solutions of lactic, acetic, malic, and formic acids in concentrations of 3% wt. were used in this research. The progress of degradation was determined based on the intrinsic viscosity measurement, GPC/SEC chromatographic analysis, and their correlation. Changes in the viscosity parameters were performed at a temperature of 20 °C ± 1 °C and a timeframe of up to 168 h (7 days). The chemical structure and DDA of the initial chitosan were analyzed using 1H-NMR spectroscopy analysis. The results of this study can be considered of high importance for the purpose of electrospinning, production of micro- and nano-capsules for drug delivery, and other types of processing. Understanding the influence of the dissociation constant of the solvent on the kinetics of chitosan degradation will allow the selection of an appropriate medium, ensuring an effective and stable spinning process, in which the occurrence of polymer degradation is unfavorable.
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22
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Qian B, Li J, Guo K, Guo N, Zhong A, Yang J, Wang J, Xiao P, Sun J, Xiong L. Antioxidant biocompatible composite collagen dressing for diabetic wound healing in rat model. Regen Biomater 2021; 8:rbab003. [PMID: 33738117 PMCID: PMC7955720 DOI: 10.1093/rb/rbab003] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 12/13/2022] Open
Abstract
Associated with persistent oxidative stress, altered inflammatory responses, poor angiogenesis and epithelization, wound healing in diabetic patients is impaired. N-acetylcysteine (NAC) is reported to resist excess reactive oxygen species (ROS) production, prompt angiogenesis and maturation of the epidermis. Studies have revealed that graphene oxide (GO) can regulate cellular behavior and form cross-links with naturally biodegradable polymers such as collagen (COL) to construct composite scaffolds. Here, we reported a COL-based implantable scaffold containing a mixture of GO capable of the sustained delivery of NAC to evaluate the wound healing in diabetic rats. The morphological, physical characteristics, biocompatibility and NAC release profile of the GO-COL-NAC (GCN) scaffold were evaluated in vitro. Wound healing studies were performed on a 20 mm dorsal full-skin defect of streptozotocin (STZ)-induced diabetic rats. The injured skin tissue was removed at the 18th day post-surgery for histological analysis and determination of glutathione peroxidase (GPx), catalase (CAT) and superoxide dismutase (SOD) activity. In diabetic rats, we confirmed that the GCN scaffold presented a beneficial effect in enhancing the wound healing process. Additionally, due to the sustained release of NAC, the scaffold may potentially induce the antioxidant defense system, upregulating the expression levels of the antioxidant enzymes in the wound tissue. The findings revealed that the antioxidant biocompatible composite collagen dressing could not only deliver NAC in situ for ROS inhibition but also promote the wound healing process. This scaffold with valuable therapy potential might enrich the approaches for surgeon in diabetic wound treatment in the future.
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Affiliation(s)
- Bei Qian
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan 430022, China
| | - Jialun Li
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan 430022, China
| | - Ke Guo
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan 430022, China
| | - Nengqiang Guo
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan 430022, China
| | - Aimei Zhong
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan 430022, China
| | - Jie Yang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan 430022, China
| | - Jiecong Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan 430022, China
| | - Peng Xiao
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan 430022, China
| | - Jiaming Sun
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan 430022, China
| | - Lingyun Xiong
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan 430022, China
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23
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Gherasim O, Puiu RA, Bîrcă AC, Burdușel AC, Grumezescu AM. An Updated Review on Silver Nanoparticles in Biomedicine. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2318. [PMID: 33238486 PMCID: PMC7700255 DOI: 10.3390/nano10112318] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/17/2020] [Accepted: 11/20/2020] [Indexed: 12/12/2022]
Abstract
Silver nanoparticles (AgNPs) represent one of the most explored categories of nanomaterials for new and improved biomaterials and biotechnologies, with impressive use in the pharmaceutical and cosmetic industry, anti-infective therapy and wound care, food and the textile industry. Their extensive and versatile applicability relies on the genuine and easy-tunable properties of nanosilver, including remarkable physicochemical behavior, exceptional antimicrobial efficiency, anti-inflammatory action and antitumor activity. Besides commercially available and clinically safe AgNPs-based products, a substantial number of recent studies assessed the applicability of nanosilver as therapeutic agents in augmented and alternative strategies for cancer therapy, sensing and diagnosis platforms, restorative and regenerative biomaterials. Given the beneficial interactions of AgNPs with living structures and their nontoxic effects on healthy human cells, they represent an accurate candidate for various biomedical products. In the present review, the most important and recent applications of AgNPs in biomedical products and biomedicine are considered.
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Affiliation(s)
- Oana Gherasim
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (O.G.); (R.A.P.); (A.C.B.); (A.-C.B.)
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
| | - Rebecca Alexandra Puiu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (O.G.); (R.A.P.); (A.C.B.); (A.-C.B.)
| | - Alexandra Cătălina Bîrcă
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (O.G.); (R.A.P.); (A.C.B.); (A.-C.B.)
| | - Alexandra-Cristina Burdușel
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (O.G.); (R.A.P.); (A.C.B.); (A.-C.B.)
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (O.G.); (R.A.P.); (A.C.B.); (A.-C.B.)
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 90-92 Panduri Road, 050657 Bucharest, Romania
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