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Wang K, Dong Y, Gan D, Zhang Y, Lai Y, Liu P. Polydopamine-armored zeolitic imidazolate framework-8-incorporated zwitterionic hydrogel with multifunctional properties for infected wound healing. Int J Biol Macromol 2024; 274:133464. [PMID: 38945331 DOI: 10.1016/j.ijbiomac.2024.133464] [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: 02/28/2024] [Revised: 05/27/2024] [Accepted: 06/25/2024] [Indexed: 07/02/2024]
Abstract
Diabetic skin wound healing is compromised by bacterial infections, oxidative stress, and vascular disruption, leading to delayed recovery and potential complications. This study developed an antibacterial, antioxidant, and adhesive hydrogel dressing that promotes rapid bacterial-infected diabetic wound healing using the biological macromolecule of polydopamine (PDA). This hydrogel comprised PDA-armored zeolitic imidazolate framework-8 nanoparticles (PDA@ZIF-8 NPs) combined with a second armor of zwitterionic polymer network (poly(acrylamide-co-sulfobetaine methacrylate); PAS), realizing low concentration Zn2+ release, good adhesion (14.7 kPa for porcine skin), and improved tensile strength (83.2 kPa). The hydrogel exhibited good antibacterial efficacy against both Staphylococcus aureus (S. aureus, 92.8 %), Escherichia coli (E. coli, 99.6 %) and methicillin-resistant S. aureus (MRSA, 99.2 %), which was attributed to the properties of the incorporated PDA@ZIF-8 NPs. Notably, in vitro, the PDA@ZIF-8 PAS hydrogel not only promoted fibroblast proliferation and migration but also facilitated endothelial cell angiogenesis. In vivo, the PDA@ZIF-8 PAS hydrogel retained its Zn2+-releasing function and effectively suppressed bacterial growth in infected wounds, thereby accelerating the regeneration of both normal and diabetic wounds. This multiarmored hydrogel is a promising sustained-release carrier for functional metal ions and drugs, making it applicable for not only skin healing, but potentially the regeneration of other complex tissues.
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Affiliation(s)
- Kangkang Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China
| | - Yaning Dong
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China
| | - Donglin Gan
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China.
| | - Yu Zhang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China
| | - Youjin Lai
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China
| | - Pingsheng Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China.
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Ekhtiari-Sadegh S, Samani S, Barneh F, Dashtbin S, Shokrgozar MA, Pooshang Bagheri K. Rapid eradication of vancomycin and methicillin-resistant Staphylococcus aureus by MDP1 antimicrobial peptide coated on photocrosslinkable chitosan hydrogel: in vitro antibacterial and in silico molecular docking studies. Front Bioeng Biotechnol 2024; 12:1385001. [PMID: 38681961 PMCID: PMC11047131 DOI: 10.3389/fbioe.2024.1385001] [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: 02/11/2024] [Accepted: 03/26/2024] [Indexed: 05/01/2024] Open
Abstract
Introduction Antibiotic resistance and weak bioavailability of antibiotics in the skin due to systemic administration leads to failure in eradication of vancomycin- and methicillin-resistant Staphylococcus aureus (VRSA and MRSA)-associated wound infections and subsequent septicemia and even death. Accordingly, this study aimed at designing a photocrosslinkable methacrylated chitosan (MECs) hydrogel coated by melittin-derived peptide 1 (MDP1) that integrated the antibacterial activity with the promising skin regenerative capacity of the hydrogel to eradicate bacteria by burst release strategy. Methods The MECs was coated with MDP1 (MECs-MDP1), characterized, and the hydrogel-peptide interaction was evaluated by molecular docking. Antibacterial activities of MECs-MDP1 were evaluated against VRSA and MRSA bacteria and compared to MECs-vancomycin (MECs-vanco). Antibiofilm activity of MECs-MDP1 was studied by our novel 'in situ biofilm inhibition zone (IBIZ)' assay, and SEM. Biocompatibility with human dermal fibroblast cells (HDFs) was also evaluated. Results and Discussion Molecular docking showed hydrogen bonds as the most interactions between MDP1 and MECs at a reasonable affinity. MECs-MDP1 eradicated the bacteria rapidly by burst release strategy whereas MECs-vanco failed to eradicate them at the same time intervals. Antibiofilm activity of MECs-MDP1 were also proved successfully. As a novel report, molecular docking analysis has demonstrated that MDP1 covers the structure of MECs and also binds to lysozyme with a reasonable affinity, which may explain the inhibition of lysozyme. MECs-MDP1 was also biocompatible with human dermal fibroblast skin cells, which indicates its safe future application. The antibacterial properties of a photocrosslinkable methacrylated chitosan-based hydrogel coated with MDP1 antimicrobial peptide were successfully proved against the most challenging antibiotic-resistant bacteria causing nosocomial wound infections; VRSA and MRSA. Molecular docking analysis revealed that MDP1 interacts with MECs mainly through hydrogen bonds with reasonable binding affinity. MECs-MDP1 hydrogels eradicated the planktonic state of bacteria by burst release of MDP1 in just a few hours whereas MECs-vanco failed to eradicate them. inhibition zone assay showed the anti-biofilm activity of the MECs-MDP1 hydrogel too. These findings emphasize that MECs-MDP1 hydrogel would be suggested as a biocompatible wound-dressing candidate with considerable and rapid antibacterial activities to prevent/eradicate VRSA/MRSA bacterial wound infections.
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Affiliation(s)
- Sarvenaz Ekhtiari-Sadegh
- Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Saeed Samani
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Farnoosh Barneh
- Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Shirin Dashtbin
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Kamran Pooshang Bagheri
- Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
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3
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Soleiman-Dehkordi E, Reisi-Vanani V, Hosseini S, Lorigooini Z, Zvareh VA, Farzan M, Khorasgani EM, Lozano K, Abolhassanzadeh Z. Multilayer PVA/gelatin nanofibrous scaffolds incorporated with Tanacetum polycephalum essential oil and amoxicillin for skin tissue engineering application. Int J Biol Macromol 2024; 262:129931. [PMID: 38331079 DOI: 10.1016/j.ijbiomac.2024.129931] [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: 09/27/2023] [Revised: 12/13/2023] [Accepted: 01/31/2024] [Indexed: 02/10/2024]
Abstract
Wound infection is still an important challenge in healing of different types of skin injuries. This highlights the need for new and improved antibacterial agents with novel and different mechanisms of action. In this study, by electrospinning process Tanacetum polycephalum essential oil (EO), as a natural antibacterial and anti-inflammatory agent, along with Amoxicillin (AMX) as an antibiotic are incorporated into PVA/gelatin-based nanofiber mats individually and in combination to fabricate a novel wound dressing. Briefly, we fabricated PVA/gelatin loaded by Amoxicillin as first layer for direct contact with wound surface to protects the wound from exogenous bacteria, and then built a PVA/gelatin/Tanacetum polycephalum essential oil layer on the first layer to help cleanses the wound from infection and accelerates wound closure. Finally, PVA/gelatin layer as third layer fabricated on middle layer to guarantee desirable mechanical properties. For each layer, the electrospinning parameters were adjusted to form bead-free fibers. The morphology of fabricated nanofiber scaffolds was characterized by Fourier-transform infrared (FTIR) and scanning electron microscopy (SEM). Microscopic images demonstrated the smooth bead-free microstructures fabrication of every layer of nanofiber with a uniform fiber size of 126.888 to 136.833 nm. While, EO and AMX increased the diameter of nanofibers but there was no change in physical structure of nanofiber. The water contact angle test demonstrated hydrophilicity of nanofibers with 47.35°. Although EO and AMX had little effect on reducing hydrophilicity but nanofibers with contact angle between 51.4° until 65.4° are still hydrophilic. Multilayer nanofibers loaded by EO and AMX killed 99.99 % of both gram-negative and gram-positive bacteria in comparison with control and PVA/gelatin nanofiber. Also, in addition to confirming the non-toxicity of nanofibers, MTT results also showed the acceleration of cell proliferation. In vivo wound evaluation in mouse models showed that designed nanofibrous scaffolds could be an appropriate option for wound treatment due to their positive effect on angiogenesis, collagen deposition, granulation tissue formation, epithelialization, and wound closure.
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Affiliation(s)
- Ebrahim Soleiman-Dehkordi
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Vahid Reisi-Vanani
- Student Research Committee, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Samanesadat Hosseini
- Central Research Laboratories, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Phytochemistry Research Center, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Zahra Lorigooini
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Vajihe Azimian Zvareh
- Core Research Facilities (CRF), Isfahan University of Medical Science, Isfahan, Iran
| | - Mahour Farzan
- Student Research Committee, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Elham Moghtadaie Khorasgani
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Karen Lozano
- Department of Mechanical Engineering, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA.
| | - Zohreh Abolhassanzadeh
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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Mutlu B, Çiftçi F, Üstündağ CB, Çakır-Koç R. Lavandula stoechas extract incorporated polylactic acid nanofibrous mats as an antibacterial and cytocompatible wound dressing. Int J Biol Macromol 2023; 253:126932. [PMID: 37729996 DOI: 10.1016/j.ijbiomac.2023.126932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/06/2023] [Accepted: 09/14/2023] [Indexed: 09/22/2023]
Abstract
In recent years, great efforts have been devoted to the design and production of bioactive wound dressings that promote skin regeneration and prevent infection. Many plant extracts and essential oils have been widely accepted in traditional medicine for a wide variety of medicinal purposes, especially wound healing. Over the past decade, many studies have focused on manufacturing and designing wound dressings containing plant compounds and extracts. In this study, Lavandula stoechas extract (LSE) (0.25 %, 0.5 %, and 1%wt) incorporated-polylactic acid (PLA) nanofibrous mats were successfully produced and characterized. Microstructural analysis by SEM revealed that the fiber diameter changed with the increase in the amount of LSE. Also, the nanofibrous mats were evaluated for their in vitro antibacterial, cytotoxicity, and wound healing properties for their use as a wound dressing material. According to the results of the disc diffusion test, PLA nanofibrous mats containing LSE %1 showed 9.65 ± 0.46 and 7.37 ± 0.03 inhibition zone (mm) against E. coli and S. aureus, respectively. According to the results of the in vitro wound healing assay, mats containing 0.5 % LSE showed better-wound closure activity compared to the control. Our results show that LSE-incorporated nanofibrous dressings can be an effective alternative with good antimicrobial activity.
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Affiliation(s)
- Betül Mutlu
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34220 Esenler, İstanbul, Turkey; Health Biotechnology Joint Research and Application Center of Excellence, 34220 Esenler, Istanbul, Turkiye.
| | - Fatih Çiftçi
- Department of Biomedical Engineering, Fatih Sultan Mehmet Vakif University, Istanbul, Turkey
| | - Cem Bülent Üstündağ
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34220 Esenler, İstanbul, Turkey; Health Biotechnology Joint Research and Application Center of Excellence, 34220 Esenler, Istanbul, Turkiye
| | - Rabia Çakır-Koç
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34220 Esenler, İstanbul, Turkey; Turkish Biotechnology Institute, Health Institutes of Turkey (TUSEB), İstanbul, Turkey; Health Biotechnology Joint Research and Application Center of Excellence, 34220 Esenler, Istanbul, Turkiye
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5
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Karami F, Torabiardekani N, Moradi M, Zare A, Mojahedtaghi M, Khorram M, Jafari M, Jabrodini A, Kamkar M, Zomorodian K, Zareshahrabadi Z. Chitosan-based emulgel and xerogel film containing Thymus pubescens essential oil as a potential wound dressing. Carbohydr Polym 2023; 318:121156. [PMID: 37479450 DOI: 10.1016/j.carbpol.2023.121156] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/06/2023] [Accepted: 06/25/2023] [Indexed: 07/23/2023]
Abstract
Controlling the wound exudates accompanied by microbial wound infections has still remained as one the most challenging clinical issues. Herein, a chitosan/gelatin/polyvinyl alcohol xerogel film containing Thymus pubescens essential oil is fabricated for antimicrobial wound dressing application. The chemical and physical characteristics of the devised formulation is characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, atomic force microscope, and tensile tests. Moreover, swelling capability, water vapour transmission rate, water contact angle, solubility, moisture content, and release properties are also studied. The antimicrobial and antibiofilm tests are performed using the broth microdilution and XTT assay, respectively. The produced formulation shows excellent antimicrobial efficacy against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa and Candida species. It is also demonstrated that the obtained film can reduce (∼80 %) Candida albicans biofilm formation, and its biocompatibility is confirmed with MTT (∼100 %) and hemolysis tests. The antimicrobial activity can be correlated to the microbial membrane attraction for Candida albicans cells, illustrated by flow cytometry. This proposed film with appropriate mechanical strength, high swelling capacity in different pH values (∼200-700 %), controlled release property, and antimicrobial and antioxidant activities as well as biocompatibility can be used as a promising candidate for antimicrobial wound dressing applications.
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Affiliation(s)
- Forough Karami
- Central Research Laboratory, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Mohammadreza Moradi
- Medical Student of School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Zare
- Department of Chemical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - Maryam Mojahedtaghi
- Department of Pharmacology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Khorram
- School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
| | - Mahboobeh Jafari
- Center for nanotechnology in drug delivery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Jabrodini
- Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Milad Kamkar
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Canada
| | - Kamiar Zomorodian
- Department of Medical Parasitology and Mycology, Shiraz University of Medical Sciences, Shiraz, Iran; Basic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Zareshahrabadi
- Basic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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6
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Raina N, Haque S, Tuli HS, Jain A, Slama P, Gupta M. Optimization and Characterization of a Novel Antioxidant Naringenin-Loaded Hydrogel for Encouraging Re-Epithelization in Chronic Diabetic Wounds: A Preclinical Study. ACS OMEGA 2023; 8:34995-35011. [PMID: 37779948 PMCID: PMC10536028 DOI: 10.1021/acsomega.3c04441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 08/23/2023] [Indexed: 10/03/2023]
Abstract
Nonhealed wounds are one of the most dangerous side effects of type-2 diabetes, which is linked to a high frequency of bacterial infections around the globe that eventually results in amputation of limbs. The present investigation aimed to explore the drug-loaded (naringenin) hydrogel system for chronic wound healing. The hydrogel membranes comprising Na-alginate with F-127 and poly(vinyl alcohol) were developed to treat chronic wounds using the quality-by-design (QbD) approach. The optimized formulation was tested for various parameters, such as swelling, gel fraction, water vapor transition rate (WVTR), etc. In vitro evaluation indicated that a drug-loaded hydrogel displayed better tissue adhesiveness and can release drugs for a prolonged duration of 12 h. Scratch assay performed on L929 cell lines demonstrated good cell migration. The diabetic wound healing potential of the hydrogel membrane was assessed in streptozotocin-induced male Wistar rats (50 mg/kg). Higher rates of wound closure, re-epithelialization, and accumulation of collagen were seen in in vivo experiments. Histopathologic investigation correspondingly implied that the drug-loaded hydrogel could enhance dermal wound repair. The improved antimicrobial and antioxidant properties with expedited healing indicated that the drug-loaded hydrogel is a perfect dressing for chronic wounds.
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Affiliation(s)
- Neha Raina
- Department
of Pharmaceutics, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), Pushp Vihar, New Delhi 110017, India
| | - Shafiul Haque
- Research
and Scientific Studies Unit, College of Nursing and Allied Health
Sciences, Jazan University, Jazan 45142, Saudi Arabia
- Gilbert
and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut 11022801, Lebanon
- Centre
of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman 13306, United Arab
Emirates
| | - Hardeep Singh Tuli
- Department
of Bio-Sciences and Technology, Maharishi Markandeshwar Engineering
College, Maharishi Markandeshwar (Deemed
to Be University), Mullana-Ambala 133207, India
| | - Atul Jain
- Department
of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Delhi Pharmaceutical Sciences and Research University
(DPSRU), New Delhi 110017, India
| | - Petr Slama
- Laboratory
of Animal Immunology and Biotechnology, Department of Animal Morphology,
Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Madhu Gupta
- Department
of Pharmaceutics, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), Pushp Vihar, New Delhi 110017, India
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Yang J, Zhang L, Peng X, Zhang S, Sun S, Ding Q, Ding C, Liu W. Polymer-Based Wound Dressings Loaded with Ginsenoside Rg3. Molecules 2023; 28:5066. [PMID: 37446725 DOI: 10.3390/molecules28135066] [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: 06/02/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
The skin, the largest organ in the human body, mainly plays a protective role. Once damaged, it can lead to acute or chronic wounds. Wound healing involves a series of complex physiological processes that require ideal wound dressings to promote it. The current wound dressings have characteristics such as high porosity and moderate water vapor permeability, but they are limited in antibacterial properties and cannot protect wounds from microbial infections, which can delay wound healing. In addition, several dressings contain antibiotics, which may have bad impacts on patients. Natural active substances have good biocompatibility; for example, ginsenoside Rg3 has anti-inflammatory, antibacterial, antioxidant, and other biological activities, which can effectively promote wound healing. Some researchers have developed various polymer wound dressings loaded with ginsenoside Rg3 that have good biocompatibility and can effectively promote wound healing and reduce scar formation. This article will focus on the application and mechanism of ginsenoside Rg3-loaded dressings in wounds.
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Affiliation(s)
- Jiali Yang
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Lifeng Zhang
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Xiaojuan Peng
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Shuai Zhang
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Shuwen Sun
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Qiteng Ding
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Chuanbo Ding
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Wencong Liu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
- School of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou 543003, China
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Toader G, Podaru IA, Rusen E, Diacon A, Ginghina RE, Alexandru M, Zorila FL, Gavrila AM, Trica B, Rotariu T, Ionita M. Nafcillin-Loaded Photocrosslinkable Nanocomposite Hydrogels for Biomedical Applications. Pharmaceutics 2023; 15:1588. [PMID: 37376037 DOI: 10.3390/pharmaceutics15061588] [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: 04/28/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 06/29/2023] Open
Abstract
Skin infections are frequently treated via intravenous or oral administration of antibiotics, which can lead to serious adverse effects and may sometimes contribute to the proliferation of resistant bacterial strains. Skin represents a convenient pathway for delivering therapeutic compounds, ensured by the high number of blood vessels and amount of lymphatic fluids in the cutaneous tissues, which are systematically connected to the rest of the body. This study provides a novel, straightforward method to obtain nafcillin-loaded photocrosslinkable nanocomposite hydrogels and demonstrates their performance as drug carriers and antimicrobial efficacy against Gram-positive bacteria. The novel formulations obtained, based on polyvinylpyrrolidone, tri(ethylene glycol) divinyl ether crosslinker, hydrophilic bentonite nanoclay, and/or two types of photoactive (TiO2 and ZnO) nanofillers, were characterized using various analytical methods (transmission electron microscopy (TEM), scanning electron microscopy-energy-dispersive X-ray analysis (SEM-EDX), mechanical tests (tension, compression, and shear), ultraviolet-visible spectroscopy (UV-Vis), swelling investigations, and via specific microbiological assays ("agar disc diffusion method" and "time-kill test"). The results reveal that the nanocomposite hydrogel possessed high mechanical resistance, good swelling abilities, and good antimicrobial activity, demonstrating a decrease in the bacteria growth between 3log10 and 2log10 after one hour of direct contact with S. aureus.
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Affiliation(s)
- Gabriela Toader
- Military Technical Academy, "Ferdinand I", 39-49 G. Cosbuc Blvd., 050141 Bucharest, Romania
| | - Ionela Alice Podaru
- Military Technical Academy, "Ferdinand I", 39-49 G. Cosbuc Blvd., 050141 Bucharest, Romania
- Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Edina Rusen
- Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Aurel Diacon
- Military Technical Academy, "Ferdinand I", 39-49 G. Cosbuc Blvd., 050141 Bucharest, Romania
- Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Raluca Elena Ginghina
- Research and Innovation Centre for CBRN Defense and Ecology, 225 Şos. Olteniţei, 041327 Bucharest, Romania
| | - Mioara Alexandru
- Microbiology Laboratory, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 30 Reactorului St., 077125 Magurele, Romania
| | - Florina Lucica Zorila
- Microbiology Laboratory, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 30 Reactorului St., 077125 Magurele, Romania
- Department of Genetics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Indepententei, 050095 Bucharest, Romania
| | - Ana Mihaela Gavrila
- National Institute of Research, Development for Chemistry and Petrochemistry, 202 Splaiul Independentei, 060041 Bucharest, Romania
| | - Bogdan Trica
- National Institute of Research, Development for Chemistry and Petrochemistry, 202 Splaiul Independentei, 060041 Bucharest, Romania
| | - Traian Rotariu
- Military Technical Academy, "Ferdinand I", 39-49 G. Cosbuc Blvd., 050141 Bucharest, Romania
| | - Mariana Ionita
- Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
- eBio-Hub Research Centre, University Politehnica of Bucharest-Campus, Iuliu Maniu 6, 061344 Bucharest, Romania
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9
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Tiwari R, Pathak K. Local Drug Delivery Strategies towards Wound Healing. Pharmaceutics 2023; 15:pharmaceutics15020634. [PMID: 36839956 PMCID: PMC9964694 DOI: 10.3390/pharmaceutics15020634] [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: 12/09/2022] [Revised: 01/30/2023] [Accepted: 02/11/2023] [Indexed: 02/16/2023] Open
Abstract
A particular biological process known as wound healing is connected to the overall phenomena of growth and tissue regeneration. Several cellular and matrix elements work together to restore the integrity of injured tissue. The goal of the present review paper focused on the physiology of wound healing, medications used to treat wound healing, and local drug delivery systems for possible skin wound therapy. The capacity of the skin to heal a wound is the result of a highly intricate process that involves several different processes, such as vascular response, blood coagulation, fibrin network creation, re-epithelialisation, collagen maturation, and connective tissue remodelling. Wound healing may be controlled with topical antiseptics, topical antibiotics, herbal remedies, and cellular initiators. In order to effectively eradicate infections and shorten the healing process, contemporary antimicrobial treatments that include antibiotics or antiseptics must be investigated. A variety of delivery systems were described, including innovative delivery systems, hydrogels, microspheres, gold and silver nanoparticles, vesicles, emulsifying systems, nanofibres, artificial dressings, three-dimensional printed skin replacements, dendrimers and carbon nanotubes. It may be inferred that enhanced local delivery methods might be used to provide wound healing agents for faster healing of skin wounds.
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Affiliation(s)
- Ruchi Tiwari
- Pranveer Singh Institute of Technology (Pharmacy), Kanpur 208020, Uttar Pradesh, India
| | - Kamla Pathak
- Faculty of Pharmacy, Uttar Pradesh University of Medical Sciences, Etawah 206130, Uttar Pradesh, India
- Correspondence:
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10
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Preparation of tetracycline hydrochloride loaded chitosan/silk fibroin/ZnO antibacterial biocomposite hydrogel sponges for wound healing application. JOURNAL OF POLYMER RESEARCH 2023. [DOI: 10.1007/s10965-022-03435-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Chen Y, Huang W, Chen Y, Wu M, Jia R, You L. Influence of Molecular Weight of Polysaccharides from Laminaria japonica to LJP-Based Hydrogels: Anti-Inflammatory Activity in the Wound Healing Process. Molecules 2022; 27:6915. [PMID: 36296508 PMCID: PMC9607980 DOI: 10.3390/molecules27206915] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 12/03/2022] Open
Abstract
In this study, polysaccharides from Laminaria japonica (LJP) were produced by the treatment of ultraviolet/hydrogen peroxide (UV/H2O2) degradation into different molecular weights. Then, the degraded LJP were used to prepare LJP/chitosan/PVA hydrogel wound dressings. As the molecular weight of LJP decreased from 315 kDa to 20 kDa, the swelling ratio of the LJP-based hydrogels rose from 14.38 ± 0.60 to 20.47 ± 0.42 folds of the original weight. However, the mechanical properties of LJP-based hydrogels slightly decreased. With the extension of the UV/H2O2 degradation time, the molecular weight of LJP gradually decreased, and the anti-inflammatory activities of LJP-based hydrogels gradually increased. LJP that were degraded for 60 min (60-gel) showed the best inhibition effects on proinflammatory cytokines, while the contents of TNF-α, IL-6, and IL-1β decreased by 57.33%, 44.80%, and 67.72%, respectively, compared with the Model group. The above results suggested that low Mw LJP-based hydrogels showed great potential for a wound dressing application.
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Affiliation(s)
| | | | | | | | | | - Lijun You
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
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12
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Jin SG. Production and application of biomaterials based on polyvinyl alcohol (PVA) as wound dressing: A mini review. Chem Asian J 2022; 17:e202200595. [PMID: 36066570 DOI: 10.1002/asia.202200595] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/31/2022] [Indexed: 11/11/2022]
Abstract
The development of ideal wound dressing with excellent properties, such as exudate absorption capacity, drug release control ability, and increased wound healing, is currently a major requirement for wound healing. Polyvinyl alcohol (PVA) is a biodegradable semi-crystalline synthetic polymer that has been used in the field of biotechnology such as tissue regeneration, wound dressing, and drug delivery systems. In recent years, PVA-based wound dressing materials have received considerable attention due to their excellent properties such as biodegradability, biocompatibility, non-toxicity and low cost. PVA can be used as a wound dressing material to create the necessary moist wound environment, improve the physical properties of the dressing, and increase the wound healing rates. In addition, PVA can also be mixed with other organic and inorganic materials and can be used for drug delivery and wound healing. This review article addresses the role of biomaterials based on PVA mixed with other ingredients for wound dressing. It also focuses on its recent use in wound dressings as carriers of active substances.
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Affiliation(s)
- Sung Giu Jin
- Dankook University - Cheonan Campus, Department of Pharmaceutical Engineering, 119 Dandae-ro, Dongnam-gu, 31116, Cheonan, KOREA, REPUBLIC OF
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13
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Luneva O, Olekhnovich R, Uspenskaya M. Bilayer Hydrogels for Wound Dressing and Tissue Engineering. Polymers (Basel) 2022; 14:polym14153135. [PMID: 35956650 PMCID: PMC9371176 DOI: 10.3390/polym14153135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 11/30/2022] Open
Abstract
A large number of different skin diseases such as hits, acute, and chronic wounds dictate the search for alternative and effective treatment options. The wound healing process requires a complex approach, the key step of which is the choice of a dressing with controlled properties. Hydrogel-based scaffolds can serve as a unique class of wound dressings. Presented on the commercial market, hydrogel wound dressings are not found among proposals for specific cases and have a number of disadvantages—toxicity, allergenicity, and mechanical instability. Bilayer dressings are attracting great attention, which can be combined with multifunctional properties, high criteria for an ideal wound dressing (antimicrobial properties, adhesion and hemostasis, anti-inflammatory and antioxidant effects), drug delivery, self-healing, stimulus manifestation, and conductivity, depending on the preparation and purpose. In addition, advances in stem cell biology and biomaterials have enabled the design of hydrogel materials for skin tissue engineering. To improve the heterogeneity of the cell environment, it is possible to use two-layer functional gradient hydrogels. This review summarizes the methods and application advantages of bilayer dressings in wound treatment and skin tissue regeneration. Bilayered hydrogels based on natural as well as synthetic polymers are presented. The results of the in vitro and in vivo experiments and drug release are also discussed.
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14
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Algal sulfated polysaccharide-based hydrogels enhance gelling properties and in vitro wound healing compared to conventional hydrogels. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Lu H, Li X, Zhang M, Xu C, Li W, Wan L. Antibacterial Cellulose Nanocrystal-Incorporated Hydrogels With Satisfactory Vascularization for Enhancing Skin Regeneration. Front Bioeng Biotechnol 2022; 10:876936. [PMID: 35557856 PMCID: PMC9086275 DOI: 10.3389/fbioe.2022.876936] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 03/21/2022] [Indexed: 11/13/2022] Open
Abstract
Wound healing of skin defects remains a significant clinical problem due to inflammation, infection, and dysangiogenesis; especially, the promotion of microvasculature formation in healing of chronic wound or deep skin defects is critical as it supplies oxygen and nutrients to the impaired tissue, relieving uncontrolled inflammatory responses. The cellulose nanocrystals (CNCs) in the liquid crystalline phase, which facilitates cell proliferation and migration, has been shown to improve vascularization effectively. Therefore, we developed a novel injectable hydrogel based on Schiff base and coordination of catechol and Ag. The obtained hydrogels (CCS/CCHO-Ag) exhibited in situ forming properties, satisfactory mechanical performance, controlled release of Ag, antibacterial capacity, and biocompatibility. In addition, the hydrogels could also entirely cover and firmly attach wounds with irregular shapes, so as to reduce the re-injury rate. More importantly, experiments in vitro and in vivo demonstrated that CCS/CCHO-Ag hydrogels can promote neovascularization and tissue regeneration, thanks to their anti-inflammatory and antibacterial effects. In conclusion, these multifunctional hydrogels are well on the way to becoming competitive biomedical dressings, which show tremendous potential application in the field of tissue engineering.
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Affiliation(s)
- Haibin Lu
- Stomatological Hospital, Southern Medical University, Guangzhou, China
- Shunde Hospital, Southern Medical University (The First People’s Hospital of Shunde), Foshan, China
| | - Xiaoling Li
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Mu Zhang
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Changpeng Xu
- Department of Orthopaedics, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Wenqiang Li
- Engineering Technology Research Center for Sports Assistive Devices of Guangdong, Guangzhou Sport University, Guangzhou, China
- *Correspondence: Wenqiang Li, ; Lei Wan,
| | - Lei Wan
- Stomatological Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Wenqiang Li, ; Lei Wan,
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16
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Loureiro J, Miguel SP, Seabra IJ, Ribeiro MP, Coutinho P. Single-Step Self-Assembly of Zein–Honey–Chitosan Nanoparticles for Hydrophilic Drug Incorporation by Flash Nanoprecipitation. Pharmaceutics 2022; 14:pharmaceutics14050920. [PMID: 35631506 PMCID: PMC9144985 DOI: 10.3390/pharmaceutics14050920] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 12/11/2022] Open
Abstract
Zein- and chitosan-based nanoparticles have been described as promising carrier systems for food, biomedical and pharmaceutical applications. However, the manufacture of size-controlled zein and chitosan particles is challenging. In this study, an adapted anti-solvent nanoprecipitation method was developed. The effects of the concentration of zein and chitosan and the pH of the collection solution on the properties of the zein–honey–chitosan nanoparticles were investigated. Flash nanoprecipitation was demonstrated as a rapid, scalable, single-step method to achieve the self-assembly of zein–honey–chitosan nanoparticles. The nanoparticles size was tuned by varying certain formulation parameters, including the total concentration and ratio of the polymers. The zein–honey–chitosan nanoparticles’ hydrodynamic diameter was below 200 nm and the particles were stable for 30 days. Vitamin C was used as a hydrophilic model substance and efficiently encapsulated into these nanoparticles. This study opens a promising pathway for one-step producing zein–honey–chitosan nanoparticles by flash nanoprecipitation for hydrophilic compounds’ encapsulation.
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Affiliation(s)
- Jorge Loureiro
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (J.L.); (S.P.M.); (M.P.R.)
| | - Sónia P. Miguel
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (J.L.); (S.P.M.); (M.P.R.)
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Inês J. Seabra
- Bioengineering Department, Lehigh University, Bethlehem, PA 18015, USA;
| | - Maximiano P. Ribeiro
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (J.L.); (S.P.M.); (M.P.R.)
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Paula Coutinho
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (J.L.); (S.P.M.); (M.P.R.)
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Correspondence: ; Tel.: +351-965544187
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17
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Schmidt BVKJ. Multicompartment Hydrogels. Macromol Rapid Commun 2022; 43:e2100895. [PMID: 35092101 DOI: 10.1002/marc.202100895] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/27/2022] [Indexed: 11/11/2022]
Abstract
Hydrogels belong to the most promising materials in polymer and materials science at the moment. As they feature soft and tissue-like character as well as high water-content, a broad range of applications are addressed with hydrogels, e.g. tissue engineering and wound dressings but also soft robotics, drug delivery, actuators and catalysis. Ways to tailor hydrogel properties are crosslinking mechanism, hydrogel shape and reinforcement, but new features can be introduced by variation of hydrogel composition as well, e.g. via monomer choice, functionalization or compartmentalization. Especially, multicompartment hydrogels drive progress towards complex and highly functional soft materials. In the present review the latest developments in multicompartment hydrogels are highlighted with a focus on three types of compartments, i.e. micellar/vesicular, droplets or multi-layers including various sub-categories. Furthermore, several morphologies of compartmentalized hydrogels and applications of multicompartment hydrogels will be discussed as well. Finally, an outlook towards future developments of the field will be given. The further development of multicompartment hydrogels is highly relevant for a broad range of applications and will have a significant impact on biomedicine and organic devices. This article is protected by copyright. All rights reserved.
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18
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3D printed bio polymeric materials as a new perspective for wound dressing and skin tissue engineering applications: a review. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02899-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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19
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Reczyńska-Kolman K, Hartman K, Kwiecień K, Brzychczy-Włoch M, Pamuła E. Composites Based on Gellan Gum, Alginate and Nisin-Enriched Lipid Nanoparticles for the Treatment of Infected Wounds. Int J Mol Sci 2021; 23:ijms23010321. [PMID: 35008746 PMCID: PMC8745171 DOI: 10.3390/ijms23010321] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/21/2021] [Accepted: 12/25/2021] [Indexed: 12/31/2022] Open
Abstract
Due to growing antimicrobial resistance to antibiotics, novel methods of treatment of infected wounds are being searched for. The aim of this research was to develop a composite wound dressing based on natural polysaccharides, i.e., gellan gum (GG) and a mixture of GG and alginate (GG/Alg), containing lipid nanoparticles loaded with antibacterial peptide-nisin (NSN). NSN-loaded stearic acid-based nanoparticles (NP_NSN) were spherical with an average particle size of around 300 nm and were cytocompatible with L929 fibroblasts for up to 500 µg/mL. GG and GG/Alg sponges containing either free NSN (GG + NSN and GG/Alg + NSN) or NP_NSN (GG + NP_NSN and GG/Alg + NP_NSN) were highly porous with a high swelling capacity (swelling ratio above 2000%). Encapsulation of NSN within lipid nanoparticles significantly slowed down NSN release from GG-based samples for up to 24 h (as compared to GG + NSN). The most effective antimicrobial activity against Gram-positive Streptococcus pyogenes was observed for GG + NP_NSN, while in GG/Alg it was decreased by interactions between NSN and Alg, leading to NSN retention within the hydrogel matrix. All materials, except GG/Alg + NP_NSN, were cytocompatible with L929 fibroblasts and did not cause an observable delay in wound healing. We believe that the developed materials are promising for wound healing application and the treatment of bacterial infections in wounds.
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Affiliation(s)
- Katarzyna Reczyńska-Kolman
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland;
- Correspondence: (K.R.-K.); (E.P.); Tel.: +48-126-172-338 (K.R.-K.); +48-12-617-44-48 (E.P.)
| | - Kinga Hartman
- Department of Analytical Chemistry and Biochemistry, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland;
| | - Konrad Kwiecień
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland;
| | - Monika Brzychczy-Włoch
- Department of Molecular Medical Microbiology, Faculty of Medicine, Medical College, Jagiellonian University, Ul. Czysta 18, 31-121 Kraków, Poland;
| | - Elżbieta Pamuła
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland;
- Correspondence: (K.R.-K.); (E.P.); Tel.: +48-126-172-338 (K.R.-K.); +48-12-617-44-48 (E.P.)
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20
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Özkahraman B, Özbaş Z, Yaşayan G, Akgüner ZP, Yarımcan F, Alarçin E, Bal-Öztürk A. Development of mucoadhesive modified kappa-carrageenan/pectin patches for controlled delivery of drug in the buccal cavity. J Biomed Mater Res B Appl Biomater 2021; 110:787-798. [PMID: 34846796 DOI: 10.1002/jbm.b.34958] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/12/2021] [Accepted: 10/10/2021] [Indexed: 12/16/2022]
Abstract
In this study, modified kappa-carrageenan/pectin hydrogel patches were fabricated for treatment of buccal fungal infections. For this purpose, kappa-carrageenan-g-acrylic acid was modified with different thiolated agents (L-cysteine and 3-mercaptopropionic acid), and the thiol content of the resulting modified kappa-carrageenan was confirmed by elemental analyzer. Then, the hydrogel patches were fabricated, and characterized by Fourier-transform infrared spectroscopy, thermogravimetric analysis, ex vivo mucoadhesion test, and swelling behavior. Triamcinolone acetonide was added either directly or by encapsulating within the poly(lactic-co-glycolic acid) nanoparticles. The release amount of the drug from the directly loaded patch was 7.81 mg/g polymer, while it was 3.28 mg/g polymer for the encapsulated patch with the same content at 7 hr. The hydrogel patches had no cytotoxicity by cell culture studies. Finally, the drug loaded hydrogel patches were demonstrated antifungal activity against Aspergillus fumigatus and Aspergillus flavus. These results provide that the novel modified kappa-carrageenan and pectin based buccal delivery system has promising antifungal property, and could have advantages compared to conventional buccal delivery systems.
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Affiliation(s)
- Bengi Özkahraman
- Department of Polymer Materials Engineering, Faculty of Engineering, Hitit University, Corum, Turkey
| | - Zehra Özbaş
- Department of Chemical Engineering, Faculty of Engineering, Çankırı Karatekin University, Çankırı, Turkey
| | - Gökçen Yaşayan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Zeynep Püren Akgüner
- Department of Stem Cell and Tissue Engineering, Institute of Health Sciences, Istinye University, Istanbul, Turkey
| | - Filiz Yarımcan
- Department of Medical Microbiology, International School of Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Emine Alarçin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Ayça Bal-Öztürk
- Department of Stem Cell and Tissue Engineering, Institute of Health Sciences, Istinye University, Istanbul, Turkey.,Department of Analytical Chemistry, Faculty of Pharmacy, Istinye University, Istanbul, Turkey
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21
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Cefuroxime-Loaded Hydrogels for Prevention and Treatment of Bacterial Contamination of Open Wounds. INT J POLYM SCI 2021. [DOI: 10.1155/2021/4935642] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Dextran/Sulfodextran-graft-polyacrylamide- and polyacrylamide-based hydrogels were synthesized by radical polymerization and loaded with cefuroxime to obtain antimicrobial wound dressings. Antibiotic release from the antibiotic-loaded hydrogels into an aqueous solution was studied by the HPLC-UV method. It is shown that cefuroxime-loaded Dextran/Sulfodextran-graft-polyacrylamide hydrogels release the antibiotic more slowly compared to polyacrylamide hydrogel with the same density of cross-links. Antibacterial activity of the synthesized materials was tested in vitro against wild strains of S. aureus, E. coli, and Klebsiella spp. The possibility of using the obtained antimicrobial hydrogels for the treatment of infected wounds was confirmed in vivo in a rat model.
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22
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Bayrak G, Perçin I, Kılıç Süloğlu A, Denizli A. Amino acid functionalized macroporous gelatin cryogels: Characterization and effects on cell proliferation. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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23
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Jin L, Xu J, Xue Y, Zhang X, Feng M, Wang C, Yao W, Wang J, He M. Research Progress in the Multilayer Hydrogels. Gels 2021; 7:172. [PMID: 34698200 PMCID: PMC8544501 DOI: 10.3390/gels7040172] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 01/11/2023] Open
Abstract
Hydrogels have been widely used in many fields including biomedicine and water treatment. Significant achievements have been made in these fields due to the extraordinary properties of hydrogels, such as facile processability and tissue similarity. However, based on the in-depth study of the microstructures of hydrogels, as a result of the enhancement of biomedical requirements in drug delivery, cell encapsulation, cartilage regeneration, and other aspects, it is challenge for conventional homogeneous hydrogels to simultaneously meet different needs. Fortunately, heterogeneous multilayer hydrogels have emerged and become an important branch of hydrogels research. In this review, their main preparation processes and mechanisms as well as their composites from different resources and methods, are introduced. Moreover, the more recent achievements and potential applications are also highlighted, and their future development prospects are clarified and briefly discussed.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Meng He
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China; (L.J.); (J.X.); (Y.X.); (X.Z.); (M.F.); (C.W.); (W.Y.); (J.W.)
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24
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Fan F, Saha S, Hanjaya-Putra D. Biomimetic Hydrogels to Promote Wound Healing. Front Bioeng Biotechnol 2021; 9:718377. [PMID: 34616718 PMCID: PMC8488380 DOI: 10.3389/fbioe.2021.718377] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/13/2021] [Indexed: 01/13/2023] Open
Abstract
Wound healing is a common physiological process which consists of a sequence of molecular and cellular events that occur following the onset of a tissue lesion in order to reconstitute barrier between body and external environment. The inherent properties of hydrogels allow the damaged tissue to heal by supporting a hydrated environment which has long been explored in wound management to aid in autolytic debridement. However, chronic non-healing wounds require added therapeutic features that can be achieved by incorporation of biomolecules and supporting cells to promote faster and better healing outcomes. In recent decades, numerous hydrogels have been developed and modified to match the time scale for distinct stages of wound healing. This review will discuss the effects of various types of hydrogels on wound pathophysiology, as well as the ideal characteristics of hydrogels for wound healing, crosslinking mechanism, fabrication techniques and design considerations of hydrogel engineering. Finally, several challenges related to adopting hydrogels to promote wound healing and future perspectives are discussed.
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Affiliation(s)
- Fei Fan
- Bioengineering Graduate Program, Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, United States
| | - Sanjoy Saha
- Bioengineering Graduate Program, Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, United States
| | - Donny Hanjaya-Putra
- Bioengineering Graduate Program, Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, United States
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, United States
- Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN, United States
- Center for Stem Cells and Regenerative Medicine, University of Notre Dame, Notre Dame, IN, United States
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25
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Özbaş Z, Özkahraman B, Bayrak G, Kılıç Süloğlu A, Perçin I, Boran F, Tamahkar E. Poly(vinyl alcohol)/(hyaluronic acid-g-kappa-carrageenan) hydrogel as antibiotic-releasing wound dressing. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01824-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Özkahraman B, Özbaş Z, Bayrak G, Tamahkar E, Perçin I, Kılıç Süloğlu A, Boran F. Characterization and antibacterial activity of gelatin–gellan gum bilayer wound dressing. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1960341] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Bengi Özkahraman
- Polymer Materials Engineering Department, Faculty of Engineering, Hitit University, Corum, Turkey
| | - Zehra Özbaş
- Chemical Engineering Department, Faculty of Engineering, Cankiri Karatekin University, Cankiri, Turkey
| | - Gülsen Bayrak
- Biology Department, Faculty of Science, Hacettepe University, Ankara, Turkey
| | - Emel Tamahkar
- Bioengineering Department, Bursa Technical University, Bursa, Turkey
| | - Işık Perçin
- Biology Department, Faculty of Science, Hacettepe University, Ankara, Turkey
| | - Aysun Kılıç Süloğlu
- Biology Department, Faculty of Science, Hacettepe University, Ankara, Turkey
| | - Filiz Boran
- Chemical Engineering Department, Faculty of Engineering, Hitit University, Corum, Turkey
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27
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Rungrod A, Kapanya A, Punyodom W, Molloy R, Meerak J, Somsunan R. Synthesis of Poly(ε-caprolactone) Diacrylate for Micelle-Cross-Linked Sodium AMPS Hydrogel for Use as Controlled Drug Delivery Wound Dressing. Biomacromolecules 2021; 22:3839-3859. [PMID: 34378381 DOI: 10.1021/acs.biomac.1c00683] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This study focuses on the synthesis of poly(ε-caprolactone) diacrylate (PCLDA) for the fabrication of micelle-cross-linked sodium AMPS wound dressing hydrogels. The novel synthetic approach of PCLDA is functionalizing a PCL diol with acrylic acid. The influences of varying the PCL diol/AA molar ratio and temperature on the suitable conditions for the synthesis of PCLDA are discussed. The hydrogel was synthesized through micellar copolymerization of sodium 2-acrylamido-2-methylpropane sulfonate (Na-AMPS) as a basic monomer and PCLDA as a hydrophobic association monomer. In this study, an attempt was made to develop new hydrogel wound dressings meant for the release of antibacterial drugs (ciprofloxacin and silver sulfadiazine). The chemical structures, morphology, porosity, and water interaction of the hydrogels were characterized. The hydrogels' swelling ratio and water vapor transmission rate (WVTR) showed a high swelling capacity (4688-10753%) and good WVTR (approximately 2000 g·m-2·day-1), which can be controlled through variation of the PCLDA concentration. The mechanical property results confirmed that PCLDA improved the mechanical properties of the hydrogel; the stress increased from 37 to 68 kPa, and the strain increased from 198 to 360% with increasing PCLDA (0-30% wt of Na-AMPS). These hydrogels presented no cytotoxicity based on over 70% cell viability responses (L929 fibroblasts) using an in vitro 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Additionally, the drug release mechanism, kinetic models, and antibacterial activity were determined. The results demonstrated that antibiotics were released from the hydrogel with a Fickian diffusion mechanism and antibacterial activity against Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive bacteria (Staphylococcus aureus). Based on the results obtained, and bearing in mind that further progress still needs to be made, the fabricated hydrogels show considerable potential for meeting the stringent property requirements of hydrogel wound dressings.
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Affiliation(s)
- Amlika Rungrod
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Apichaya Kapanya
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Winita Punyodom
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Robert Molloy
- Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand.,Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jomkhwan Meerak
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Runglawan Somsunan
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
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28
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Nguyen TNT, Do TBT, Ho MH, Tran NMP, Dang NNT, Do TM, Nguyen HTT, Phan TB, Tran QN, Van Vo T, Nguyen HT. Investigating the effect of multi-coated hydrogel layer on characteristics of electrospun PCL membrane coated with gelatin/silver nanoparticles for wound dressing application. J Biomed Mater Res A 2021; 109:2414-2424. [PMID: 34145706 DOI: 10.1002/jbm.a.37222] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 05/02/2021] [Accepted: 05/07/2021] [Indexed: 01/17/2023]
Abstract
In this study, the effect of coated hydrogel layer on characteristics of the whole gelatin/silver nanoparticles multi-coated polycaprolactone membrane (PCLGelAg) was investigated through systematic and typical wound dressing characterizations to select the optimal number of layers for practical applications. Scanning electron microscopy, free swell absorptive capacity and tensile test in both wet and dry conditions were conducted to characterize all fabricated membranes of six coating times. In vitro cytotoxicity and agar diffusion evaluation were also carried out to assess the biocompatibility and antibacterial activity of the membranes. The findings illustrated that as the coated layers increase, the absorptive capacity, and degradation rate were higher, the membranes were stiffer in dry state while the tensile strength in wet state, elongation, and cell viability were significantly decreased. PCLGelAg3 was chosen to be the best fit for wound healing since it maintained quite sufficient maximum buffer uptake, elasticity, cell viability along with inducing abnormalities in bacterial morphology and preventing biofilm formation.
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Affiliation(s)
- Tien Ngoc-Thuy Nguyen
- Tissue Engineering and Regenerative Medicine Department, School of Biomedical Engineering, International University, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Thien Bui-Thuan Do
- Tissue Engineering and Regenerative Medicine Department, School of Biomedical Engineering, International University, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Minh Hieu Ho
- Tissue Engineering and Regenerative Medicine Department, School of Biomedical Engineering, International University, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Nam Minh-Phuong Tran
- Tissue Engineering and Regenerative Medicine Department, School of Biomedical Engineering, International University, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Nhi Ngoc-Thao Dang
- Tissue Engineering and Regenerative Medicine Department, School of Biomedical Engineering, International University, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Thai Minh Do
- Tissue Engineering and Regenerative Medicine Department, School of Biomedical Engineering, International University, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Hoai Thi-Thu Nguyen
- School of Biotechnology, International University, Ho Chi Minh City, Vietnam
| | - Thang Bach Phan
- Center for Innovative Materials and Architectures (INOMAR), Ho Chi Minh City, Vietnam
| | - Quyen Ngoc Tran
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam.,Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Toi Van Vo
- Tissue Engineering and Regenerative Medicine Department, School of Biomedical Engineering, International University, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Hiep Thi Nguyen
- Tissue Engineering and Regenerative Medicine Department, School of Biomedical Engineering, International University, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
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29
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Tamahkar E. Bacterial cellulose/poly vinyl alcohol based wound dressings with sustained antibiotic delivery. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01631-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Özkahraman B, Tamahkar E, İdil N, Kılıç Suloglu A, Perçin I. Evaluation of hyaluronic acid nanoparticle embedded chitosan-gelatin hydrogels for antibiotic release. Drug Dev Res 2021; 82:241-250. [PMID: 33009868 DOI: 10.1002/ddr.21747] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/09/2020] [Accepted: 09/19/2020] [Indexed: 12/30/2022]
Abstract
The development of chitosan-gelatin (CS-G) hydrogels embedded with ampicillin-loaded hyaluronic acid nanoparticles (HA-NPs) for wound dressing is proposed. It was aimed to provide controlled ampicillin delivery by incorporation of HA-NPs into biocompatible CS-G hydrogel structure. According to in vitro ampicillin release studies, 55% of ampicillin was released from CS-G/HA-NPs hydrogels after 5 days. Antibacterial performance of CS-G/HA-NPs hydrogels was proven with agar disc diffusion test. For cytotoxicity assay, fibroblast cell viability increased in CS-G/HA-NPs hydrogels compared with CS-G group after 24 hr incubation. Consequently, the potential ability of CS-G/HA-NPs hydrogels as a controlled drug delivery system has been verified.
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Affiliation(s)
- Bengi Özkahraman
- Department of Polymer Engineering, Hitit University, Çorum, Turkey
| | - Emel Tamahkar
- Department of Chemical Engineering, Hitit University, Çorum, Turkey
- Department of Food Engineering, Balıkesir University, Balıkesir, Turkey
| | - Neslihan İdil
- Department of Biology, Hacettepe University, Ankara, Turkey
| | | | - Işık Perçin
- Department of Biology, Hacettepe University, Ankara, Turkey
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31
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Hydrogels as Drug Delivery Systems: A Review of Current Characterization and Evaluation Techniques. Pharmaceutics 2020; 12:pharmaceutics12121188. [PMID: 33297493 PMCID: PMC7762425 DOI: 10.3390/pharmaceutics12121188] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 12/15/2022] Open
Abstract
Owing to their tunable properties, controllable degradation, and ability to protect labile drugs, hydrogels are increasingly investigated as local drug delivery systems. However, a lack of standardized methodologies used to characterize and evaluate drug release poses significant difficulties when comparing findings from different investigations, preventing an accurate assessment of systems. Here, we review the commonly used analytical techniques for drug detection and quantification from hydrogel delivery systems. The experimental conditions of drug release in saline solutions and their impact are discussed, along with the main mathematical and statistical approaches to characterize drug release profiles. We also review methods to determine drug diffusion coefficients and in vitro and in vivo models used to assess drug release and efficacy with the goal to provide guidelines and harmonized practices when investigating novel hydrogel drug delivery systems.
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32
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Mert H, Özkahraman B, Damar H. A novel wound dressing material: Pullulan grafted copolymer hydrogel via UV copolymerization and crosslinking. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101962] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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33
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Bal‐Öztürk A, Özkahraman B, Özbaş Z, Yaşayan G, Tamahkar E, Alarçin E. Advancements and future directions in the antibacterial wound dressings – A review. J Biomed Mater Res B Appl Biomater 2020; 109:703-716. [DOI: 10.1002/jbm.b.34736] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/04/2020] [Accepted: 09/27/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Ayça Bal‐Öztürk
- Dept. of Analytical Chemistry, Faculty of Pharmacy Istinye University Istanbul Turkey
- Dept. of Stem Cell and Tissue Engineering, Institute of Health Sciences Istinye University Istanbul Turkey
| | - Bengi Özkahraman
- Dept. of Polymer Engineering, Faculty of Engineering Hitit University Turkey
| | - Zehra Özbaş
- Dept. of Chemical Engineering, Faculty of Engineering Cankırı Karatekin University Turkey
| | - Gökçen Yaşayan
- Dept. of Pharmaceutical Technology, Faculty of Pharmacy Marmara University Istanbul Turkey
| | - Emel Tamahkar
- Dept. of Chemical Engineering, Faculty of Engineering Hitit University Turkey
| | - Emine Alarçin
- Dept. of Pharmaceutical Technology, Faculty of Pharmacy Marmara University Istanbul Turkey
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34
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Çetin K, Aslıyüce S, Idil N, Denizli A. Preparation of lysozyme loaded gelatin microcryogels and investigation of their antibacterial properties. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 32:189-204. [PMID: 32962559 DOI: 10.1080/09205063.2020.1825303] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Antibacterial micron-sized cryogels, so-called microcryogels, were prepared by cryogelation of gelatin and integration of lysozyme. Gelation yield, specific surface area, macro-porosity and swelling degree of the microcryogels were examined in order to characterize their physical properties. MTT method was utilized to measure cell viability of the gelatin microcryogels with a period of 24, 48, and 72 h and no significant decrease was observed at 72 h. Apoptotic staining assay also showed high viability at 24, 48, 72 h in parallel with the control group. The antibacterial performances of the gelatin microcryogels against Bacillus subtilis, Staphylococcus aureus, and Escherichia coli were examined. The results showed that the incorporation of lysozyme into gelatin microcryogels exhibited the antibacterial activity against S. aureus, B. subtilis, and E. coli, that may provide great potential for various applications in the biomedical industry.
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Affiliation(s)
- Kemal Çetin
- Department of Biomedical Engineering, Necmettin Erbakan University, Konya, Turkey
| | - Sevgi Aslıyüce
- Department of Chemistry, Hacettepe University, Ankara, Turkey
| | - Neslihan Idil
- Department of Biology, Hacettepe University, Ankara, Turkey
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara, Turkey
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35
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Physicochemical Investigations of Chitosan-Based Hydrogels Containing Aloe Vera Designed for Biomedical Use. MATERIALS 2020; 13:ma13143073. [PMID: 32660077 PMCID: PMC7412484 DOI: 10.3390/ma13143073] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/05/2020] [Accepted: 07/07/2020] [Indexed: 12/31/2022]
Abstract
In this work, synthesis and investigations on chitosan-based hydrogels modified with Aloe vera juice are presented. These materials were synthesized by UV radiation. Investigations involved analysis of chemical structure by FTIR spectroscopy, sorption properties in physiological liquids, strength properties by texture analyzer, surface topography by Atomic Force Microscopy (AFM technique), and in vitro cytotoxicity by MTT test using L929 murine fibroblasts. Particular attention was focused both on determining the impact of the amount and the molecular weight of the crosslinker used for the synthesis as well as on the introduced additive on the properties of hydrogels. It was proven that modified hydrogels exhibited higher swelling ability. Introduced additive affected the tensile strength of hydrogels—modified materials showed 23% higher elongation. The greater amount of the crosslinker used in the synthesis, the more compact the structure, leading to the lower elasticity and lower sorption of hydrogels was reported. Above 95%, murine fibroblasts remained viable after 24 h incubation with hydrogels. It indicates that tested materials did not exhibit cytotoxicity toward these lines. Additionally, materials with Aloe vera juice were characterized by lower surface roughness. Conducted investigations allowed us to state that such modified hydrogels may be considered as useful for biomedical purposes.
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36
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Stoica AE, Chircov C, Grumezescu AM. Hydrogel Dressings for the Treatment of Burn Wounds: An Up-To-Date Overview. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2853. [PMID: 32630503 PMCID: PMC7345019 DOI: 10.3390/ma13122853] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 06/17/2020] [Accepted: 06/22/2020] [Indexed: 12/13/2022]
Abstract
Globally, the fourth most prevalent devastating form of trauma are burn injuries. Ideal burn wound dressings are fundamental to facilitate the wound healing process and decrease pain in lower time intervals. Conventional dry dressing treatments, such as those using absorbent gauze and/or absorbent cotton, possess limited therapeutic effects and require repeated dressing changes, which further aggravate patients' suffering. Contrariwise, hydrogels represent a promising alternative to improve healing by assuring a moisture balance at the burn site. Most studies consider hydrogels as ideal candidate materials for the synthesis of wound dressings because they exhibit a three-dimensional (3D) structure, which mimics the natural extracellular matrix (ECM) of skin in regard to the high-water amount, which assures a moist environment to the wound. There is a wide variety of polymers that have been used, either alone or blended, for the fabrication of hydrogels designed for biomedical applications focusing on treating burn injuries. The aim of this paper is to provide an up-to-date overview of hydrogels applied in burn wound dressings.
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Affiliation(s)
| | | | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.E.S.); (C.C.)
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37
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Stoica AE, Chircov C, Grumezescu AM. Nanomaterials for Wound Dressings: An Up-to-Date Overview. Molecules 2020; 25:E2699. [PMID: 32532089 PMCID: PMC7321109 DOI: 10.3390/molecules25112699] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/07/2020] [Accepted: 06/09/2020] [Indexed: 12/12/2022] Open
Abstract
As wound healing continues to be a challenge for the medical field, wound management has become an essential factor for healthcare systems. Nanotechnology is a domain that could provide different new approaches concerning regenerative medicine. It is worth mentioning the importance of nanoparticles, which, when embedded in biomaterials, can induce specific properties that make them of interest in applications as materials for wound dressings. In the last years, nano research has taken steps to develop molecular engineering strategies for different self-assembling biocompatible nanoparticles. It is well-known that nanomaterials can improve burn treatment and also the delayed wound healing process. In this review, the first-line of bioactive nanomaterials-based dressing categories frequently applied in clinical practice, including semi-permeable films, semipermeable foam dressings, hydrogel dressings, hydrocolloid dressings, alginate dressings, non-adherent contact layer dressings, and multilayer dressings will be discussed. Additionally, this review will highlight the lack of high-quality evidence and the necessity for future advanced trials because current wound healing therapies generally fail to provide an excellent clinical outcome, either structurally or functionally. The use of nanomaterials in wound management represents a unique tool that can be specifically designed to closely reflect the underlying physiological processes in tissue repair.
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Affiliation(s)
| | | | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.E.S.); (C.C.)
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