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Liu MN, Chen T, Yin F, Song WZ, Wu LX, Zhang J, Ramakrishna S, Long YZ. Smart Bandage Based on a ZIF-8 Triboelectric Nanogenerator for In Situ Real-Time Monitoring of Drug Concentration. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39021338 DOI: 10.1021/acsami.4c07446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
For chronic wounds, frequent replacement of bandages not only increases the likelihood of secondary damage and the risk of cross infection but also wastes medication. Therefore, in situ real-time monitoring of the concentrations of residual drugs in bandages is crucial. Here, we propose a novel strategy that combines a triboelectric nanogenerator (TENG) with medical bandages to develop a smart bandage based on zeolite imidazolate framework TENG. During the process of wound healing, the electrical output of TENG changes with the continuous release of drugs. Based on the correlation between the electrical signal of TENG and drug concentration, the concentration of residual drugs in the bandage can be monitored in real-time in situ, guiding medical staff to replace the bandage at the most appropriate time. The smart bandage based on TENG provides a new strategy for in situ real-time monitoring of drug concentration and also provides an ideal and feasible solution for the field of biomedical drug sensing.
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Affiliation(s)
- Meng-Nan Liu
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Ting Chen
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Fang Yin
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Wei Zhi Song
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Lin-Xin Wu
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Jun Zhang
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Seeram Ramakrishna
- Center for Nanofibers & Nanotechnology, Faculty of Engineering, National University of Singapore, Singapore 119077, Singapore
| | - Yun-Ze Long
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
- State Key Laboratory of Bio-Fibers & Eco-Textiles (Qingdao University), Qingdao 266071, China
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2
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Randhawa A, Dutta SD, Ganguly K, Patil TV, Lim KT. Manufacturing 3D Biomimetic Tissue: A Strategy Involving the Integration of Electrospun Nanofibers with a 3D-Printed Framework for Enhanced Tissue Regeneration. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309269. [PMID: 38308170 DOI: 10.1002/smll.202309269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/11/2024] [Indexed: 02/04/2024]
Abstract
3D printing and electrospinning are versatile techniques employed to produce 3D structures, such as scaffolds and ultrathin fibers, facilitating the creation of a cellular microenvironment in vitro. These two approaches operate on distinct working principles and utilize different polymeric materials to generate the desired structure. This review provides an extensive overview of these techniques and their potential roles in biomedical applications. Despite their potential role in fabricating complex structures, each technique has its own limitations. Electrospun fibers may have ambiguous geometry, while 3D-printed constructs may exhibit poor resolution with limited mechanical complexity. Consequently, the integration of electrospinning and 3D-printing methods may be explored to maximize the benefits and overcome the individual limitations of these techniques. This review highlights recent advancements in combined techniques for generating structures with controlled porosities on the micro-nano scale, leading to improved mechanical structural integrity. Collectively, these techniques also allow the fabrication of nature-inspired structures, contributing to a paradigm shift in research and technology. Finally, the review concludes by examining the advantages, disadvantages, and future outlooks of existing technologies in addressing challenges and exploring potential opportunities.
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Affiliation(s)
- Aayushi Randhawa
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Sayan Deb Dutta
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Institute of Forest Science, Kangwon National University, Chuncheon, Gangwon-do, 24341, Republic of Korea
| | - Keya Ganguly
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Tejal V Patil
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Ki-Taek Lim
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Institute of Forest Science, Kangwon National University, Chuncheon, Gangwon-do, 24341, Republic of Korea
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3
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Babaei M, Ebrahim-Najafabadi N, Mirzadeh M, Abdali H, Farnaghi M, Gharavi MK, Kheradmandfard M, Kharazi AZ, Poursamar SA. A comprehensive bench-to-bed look into the application of gamma-sterilized 3D-printed polycaprolactone/hydroxyapatite implants for craniomaxillofacial defects, an in vitro, in vivo, and clinical study. BIOMATERIALS ADVANCES 2024; 161:213900. [PMID: 38772132 DOI: 10.1016/j.bioadv.2024.213900] [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: 02/26/2024] [Revised: 05/13/2024] [Accepted: 05/17/2024] [Indexed: 05/23/2024]
Abstract
This study investigates the safety and efficacy of 3D-printed polycaprolactone/hydroxyapatite (PCL/HA) scaffolds for patient-specific cranioplasty surgeries, employing liquid deposition modeling (LDM) technology. This research is pioneering as it explores the impact of gamma radiation on PCL/HA scaffolds and utilizes printing ink with the highest content of HA known in the composite. The mechanical, morphological, and macromolecular stability of the gamma-sterilized scaffolds were verified before implantation. Subsequent research involving animal subjects was conducted to explore the effects of sterilized implants. Eventually, three clinical cases were selected for the implantation studies as part of a phase 1 non-randomized open-label clinical trial. It was shown that a 25 kGy gamma-ray dose for sterilizing the printed implants did not alter the required geometrical precision of the printed implants. The implants exhibited well-distributed HA and strength comparable to cancellous bone. Gamma radiation reduced hydrophobicity and water uptake capacity without inducing pyrogenic or inflammatory responses. Personalized PCL/HA substitutes successfully treated various craniomaxillofacial defects, including trauma-induced facial asymmetry and congenital deformities. HA nanoparticles in the ink stimulated significant osteoconductive responses within three months of implantation. Moreover, the results revealed that while larger implants may exhibit a slower bone formation response in comparison to smaller implants, they generally had an acceptable rate and volume of bone formation. This clinical trial suggests the application of a sterilized PCL/HA composite for craniomaxillofacial surgery is safe and could be considered as a substitute for autologous bone.
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Affiliation(s)
- Melika Babaei
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Narges Ebrahim-Najafabadi
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Motahareh Mirzadeh
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hossein Abdali
- Craniofacial and Cleft Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Mohammadhasan Farnaghi
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Majid Kalbasi Gharavi
- Craniofacial and Cleft Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi Kheradmandfard
- Dental Materials Research Centre, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Anousheh Zargar Kharazi
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Seyed Ali Poursamar
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran; Craniofacial and Cleft Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran.
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4
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Shafizadeh S, Heydari P, Zargar Kharazi A, Shariati L. Coaxial electrospun PGS/PCL and PGS/PGS-PCL nanofibrous membrane containing platelet-rich plasma for skin tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:482-500. [PMID: 38190321 DOI: 10.1080/09205063.2023.2299073] [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: 09/13/2023] [Accepted: 12/18/2023] [Indexed: 01/10/2024]
Abstract
Wound healing will be enhanced using structures with therapeutic effects. This study fabricated a novel nanofibrous scaffold for skin tissue regeneration using a coaxial structure polyglycerol sebacate (PGS)/platelet-rich plasma (PRP) was embedded in the core and two different compositions were selected for the shell; in one group, polycaprolactone (PCL), and in the other group, PGS/PCL blend was used. The physical, mechanical behavior, drug delivery patterns, and cell response of scaffolds were evaluated. Results revealed that by adding PRP to the core and PGS to the shell, fiber diameters decreased to 260.8 ± 31.3 nm. It also decreased the water contact angle from 66° to 32°, that is ideal candidate for cell attachment. The drug release showed a burst release pattern in the first 30 min, followed by a continuous and slow release during the first day. Adding PGS to the shell decreased the elastic modulus, and its value reached about 500 kPa, which is near the skin elastic modulus and will lead to greater mechanical compatibility for cell proliferation. Particularly, the addition of PRP to the fiber structure enhanced the cell viability and cell adhesion with a suitable morphology. Based on the results, nanofibrous PGS-PRP/PGS-PCL dressing can enhance skin tissue regeneration.
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Affiliation(s)
- Shima Shafizadeh
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parisa Heydari
- Applied Physiology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Anousheh Zargar Kharazi
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Applied Physiology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Laleh Shariati
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Biosensor Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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5
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Geyik F, Kaya S, Yılmaz DE, Demirci H, Akmayan İ, Özbek T, Acar S. Propolis-Loaded Poly(lactic- co-glycolic Acid) Nanofibers: An In Vitro Study. ACS OMEGA 2024; 9:14054-14062. [PMID: 38560001 PMCID: PMC10975591 DOI: 10.1021/acsomega.3c09492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/26/2024] [Accepted: 02/21/2024] [Indexed: 04/04/2024]
Abstract
Nanofibers have high potential through their high porosity, small pore sizes, lightweight materials, and their ability to mimic the extracellular matrix structure for use in the manufacture of wound dressings for wound treatment. In this study, poly(lactic-co-glycolic acid) (PLGA) nanofibers were produced by electrospinning. Propolis was loaded into the PLGA nanofibers by the dropping method. The average diameters and effects of propolis loading on the morphology of 37.5, 50, and 100% propolis-loaded PLGA nanofibers (PLGA-P37.5, PLGA-P50, and PLGA-P100) were evaluated by scanning electron microscopy (SEM). The successful loading of propolis into PLGA nanofibers was confirmed with Fourier transform infrared spectroscopy (FTIR) analysis. In vitro propolis release was examined at physiological pH. The antioxidant activity of propolis-loaded nanofibers was studied with 2,2-diphenyl-1-picrylhydrazyl (DPPH). Antimicrobial activities of the nanofibers against Escherichia coli, Staphylococcus aureus and Candida albicans strains were determined by the disk diffusion method. Consequently, PLGA-P50 and PLGA-P100 showed high antimicrobial activity on S. aureus and C. albicans. Cell viability was tested by 3-[4,5-dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay, and propolis-loaded PLGA nanofibers were found to be biocompatible with human fibroblast cells. In the wound scratch assay, propolis-loaded nanofibers supported wound closure with cell migration and proliferation. Thus, in vitro wound closure properties of propolis-loaded PLGA nanofibers were evaluated for the first time in the literature.
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Affiliation(s)
- Fulya Geyik
- Faculty
of Chemical and Metallurgical Engineering, Department of Bioengineering, Yildiz Technical University, Istanbul 34220, Turkey
| | - Seçil Kaya
- Faculty
of Chemical and Metallurgical Engineering, Department of Bioengineering, Yildiz Technical University, Istanbul 34220, Turkey
| | - Duygu Elif Yılmaz
- Department
of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
| | - Hasan Demirci
- Institute
of Functional Anatomy, Charité-Universitätsmedizin
Berlin, Berlin 10115, Germany
| | - İlkgül Akmayan
- Faculty
of Arts and Sciences, Department of Molecular Biology and Genetics, Yildiz Technical University, Istanbul 34220, Turkey
| | - Tülin Özbek
- Faculty
of Arts and Sciences, Department of Molecular Biology and Genetics, Yildiz Technical University, Istanbul 34220, Turkey
| | - Serap Acar
- Faculty
of Chemical and Metallurgical Engineering, Department of Bioengineering, Yildiz Technical University, Istanbul 34220, Turkey
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6
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Latiyan S, Kumar TSS, Doble M. Functionally multifaceted alginate/curdlan/agarose-based bilayer fibro-porous dressings for addressing full-thickness diabetic wounds. BIOMATERIALS ADVANCES 2024; 157:213757. [PMID: 38198999 DOI: 10.1016/j.bioadv.2023.213757] [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: 08/15/2023] [Revised: 12/06/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024]
Abstract
Full-thickness diabetic wounds are chronic injuries characterized by bleeding, excessive exude, and prolonged inflammation. Single-layer dressings fail to address their disturbed pathophysiology. Therefore, bilayer dressings with structural and compositional differences in each layer have gained attention. We hypothesized that natural polymer (alginate, curdlan, and agarose) based bilayer dressings with inherent healing properties could effectively resolve these issues. Hence, bilayer dressings were fabricated by electrospinning curdlan/agarose/ polyvinyl alcohol blend (top layer) on an alginate/agarose/polyvinyl alcohol-based lyophilized porous (bottom) layer. Ciprofloxacin was incorporated in both layers as a potential antibacterial drug. The bilayer dressing exhibited high swelling (~1300 %), biocompatibility (>90 % with NIH 3T3 and L929 mouse fibroblasts), and hemocompatibility (hemolysis <5 %). In vitro, scratch assay revealed a faster wound closure (~ 95-100 %) than control. Inhibition zone assay revealed antibacterial activity against Staphylococcus aureus and Escherichia coli. Real-time (in vitro) gene expression experiments performed using human THP-1 macrophages exhibited a significant increase in anti-inflammatory cytokines (4.51 fold in IL-10) and a decrease in pro-inflammatory cytokines (1.42 fold in IL-6) in comparison to lipopolysaccharide. Thus, fabricated dressings with high swelling, hemostatic, immunomodulatory, and antibacterial characteristics can serve as potential multifunctional and sustainable templates for healing full-thickness diabetic wounds.
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Affiliation(s)
- Sachin Latiyan
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai 600036, India; Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - T S Sampath Kumar
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai 600036, India.
| | - Mukesh Doble
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India; Department of Cariology, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, India
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7
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Song Y, Hu Q, Liu S, Wang Y, Zhang H, Chen J, Yao G. Electrospinning/3D printing drug-loaded antibacterial polycaprolactone nanofiber/sodium alginate-gelatin hydrogel bilayer scaffold for skin wound repair. Int J Biol Macromol 2024; 275:129705. [PMID: 38272418 DOI: 10.1016/j.ijbiomac.2024.129705] [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: 08/16/2023] [Revised: 01/14/2024] [Accepted: 01/22/2024] [Indexed: 01/27/2024]
Abstract
Skin injuries and defects, as a common clinical issue, still cannot be perfectly repaired at present, particularly large-scale and infected skin defects. Therefore, in this work, a drug-loaded bilayer skin scaffold was developed for repairing full-thickness skin defects. Briefly, amoxicillin (AMX) was loaded on polycaprolactone (PCL) nanofiber via electrospinning to form the antibacterial nanofiber membrane (PCL-AMX) as the outer layer of scaffold to mimic epidermis. To maintain wound wettability and promote wound healing, external human epidermal growth factor (rhEGF) was loaded in sodium alginate-gelatin to form the hydrogel structure (SG-rhEGF) via 3D printing as inner layer of scaffold to mimic dermis. AMX and rhEGF were successfully loaded into the scaffold. The scaffold exhibited excellent physicochemical properties, with elongation at break and tensile modulus were 102.09 ± 6.74% and 206.83 ± 32.10 kPa, respectively; the outer layer was hydrophobic (WCA was 112.09 ± 4.67°), while the inner layer was hydrophilic (WCA was 48.87 ± 5.52°). Meanwhile, the scaffold showed excellent drug release and antibacterial characteristics. In vitro and in vivo studies indicated that the fabricated scaffold could enhance cell adhesion and proliferation, and promote skin wound healing, with favorable biocompatibility and great potential for skin regeneration and clinical application.
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Affiliation(s)
- Yongteng Song
- Rapid Manufacturing Engineering Center, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China; Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai 200072, China
| | - Qingxi Hu
- Rapid Manufacturing Engineering Center, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China; Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai 200072, China; National Demonstration Center for Experimental Engineering Training Education, Shanghai University, Shanghai 200444, China
| | - Suihong Liu
- Rapid Manufacturing Engineering Center, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China; Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai 200072, China; State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - Yahao Wang
- Rapid Manufacturing Engineering Center, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China; Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai 200072, China
| | - Haiguang Zhang
- Rapid Manufacturing Engineering Center, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China; Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai 200072, China; National Demonstration Center for Experimental Engineering Training Education, Shanghai University, Shanghai 200444, China.
| | - Jianghan Chen
- Department of Dermatology, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China.
| | - Guotai Yao
- Department of Dermatology, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China; Department of Dermatology, Changzheng Hospital, Naval Medical University, Shanghai 200003, China.
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8
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El-Sakhawy M, Salama A, Tohamy HAS. Applications of propolis-based materials in wound healing. Arch Dermatol Res 2023; 316:61. [PMID: 38151671 PMCID: PMC10752841 DOI: 10.1007/s00403-023-02789-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 10/25/2023] [Accepted: 11/20/2023] [Indexed: 12/29/2023]
Abstract
Due to its excellent antiseptic efficacy and antimicrobial properties, propolis has shown attractive advantages in wound dressings. However, an inclusive review of the propolis-based materials as a wound dressing is still lacking. The current short review summarizes the skin wound healing process, relates evaluation parameters, and then reviews the refined propolis-based materials dressings such as antimicrobial property, adhesion and hemostasis, anti-inflammatory and substance delivery. The approaches implemented to achieve these functions are classified and discussed. Furthermore, applications of propolis wound dressing for treating different types of wounds such as heal wounds, burns, and ulcers are presented. The future directions of propolis-based wound dressings for wound healing are further proposed. This review showed that propolis-based materials might be a promising new dressing for wound occlusion and tissue repairing.
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Affiliation(s)
- Mohamed El-Sakhawy
- Cellulose and Paper Department, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt.
| | - Ahmed Salama
- Cellulose and Paper Department, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Hebat-Allah S Tohamy
- Cellulose and Paper Department, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt
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9
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Fierascu RC, Lungulescu EM, Fierascu I, Stan MS, Voinea IC, Dumitrescu SI. Metal and Metal Oxide Nanoparticle Incorporation in Polyurethane Foams: A Solution for Future Antimicrobial Materials? Polymers (Basel) 2023; 15:4570. [PMID: 38231979 PMCID: PMC10708408 DOI: 10.3390/polym15234570] [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: 10/19/2023] [Revised: 11/18/2023] [Accepted: 11/27/2023] [Indexed: 01/19/2024] Open
Abstract
With the technological developments witnessed in recent decades, nanotechnology and nanomaterials have found uses in several common applications and products we encounter daily. On the other hand, polyurethane (PU) foams represent an extremely versatile material, being widely recognized for their extensive application possibilities and possessing a multitude of fundamental attributes that enhance their broad usability across various application fields. By combining the versatility of PU with the antimicrobial properties of nanoparticles, this emerging field holds promise for addressing the urgent need for effective antimicrobial materials in various applications. In this comprehensive review, we explore the synthesis methods, properties and applications of these nanocomposite materials, shedding light on their potential role in safeguarding public health and environmental sustainability. The main focus is on PU foams containing metal and metal oxide nanoparticles, but a brief presentation of the progress documented in the last few years regarding other antimicrobial nanomaterials incorporated into such foams is also given within this review in order to obtain a larger image of the possibilities to develop improved PU foams.
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Affiliation(s)
- Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 060021 Bucharest, Romania; (R.C.F.); (I.F.)
| | - Eduard-Marius Lungulescu
- National Institute for Research and Development in Electrical Engineering ICPE-CA, 313 Splaiul Unirii, 030138 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 060021 Bucharest, Romania; (R.C.F.); (I.F.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Bvd., 011464 Bucharest, Romania
| | - Miruna S. Stan
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (M.S.S.); (I.C.V.)
| | - Ionela C. Voinea
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (M.S.S.); (I.C.V.)
| | - Silviu Ionel Dumitrescu
- Central Emergency University Military Hospital, 013058 Bucharest, Romania;
- Medical-Surgical Department, Faculty of Medicine, Titu Maiorescu University of Medicine and Pharmacy, 031593 Bucharest, Romania
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10
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Abdelhakeem E, Monir S, Teaima MHM, Rashwan KO, El-Nabarawi M. State-of-the-Art Review of Advanced Electrospun Nanofiber Composites for Enhanced Wound Healing. AAPS PharmSciTech 2023; 24:246. [PMID: 38030812 DOI: 10.1208/s12249-023-02702-9] [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: 08/13/2023] [Accepted: 11/10/2023] [Indexed: 12/01/2023] Open
Abstract
Wound healing is a complex biological process with four main phases: hemostasis, inflammation, proliferation, and remodeling. Current treatments such as cotton and gauze may delay the wound healing process which gives a demand for more innovative treatments. Nanofibers are nanoparticles that resemble the extracellular matrix of the skin and have a large specific surface area, high porosity, good mechanical properties, controllable morphology, and size. Nanofibers are generated by electrospinning method that utilizes high electric force. Electrospinning device composed of high voltage power source, syringe that contains polymer solution, needle, and collector to collect nanofibers. Many polymers can be used in nanofiber that can be from natural or from synthetic origin. As such, electrospun nanofibers are potential scaffolds for wound healing applications. This review discusses the advanced electrospun nanofiber morphologies used in wound healing that is prepared by modified electrospinning techniques.
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Affiliation(s)
- Eman Abdelhakeem
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El Aini Street, Cairo, 11562, Egypt.
| | - Sawsan Monir
- Production Sector, Semisolid Department, Nile Company for Pharmaceuticals and Chemical Industries, Cairo, Egypt
| | - Mahmoud H M Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El Aini Street, Cairo, 11562, Egypt
| | - Kareem Omar Rashwan
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, October 6 University, 6th of October City, Giza, Egypt
| | - Mohamed El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El Aini Street, Cairo, 11562, Egypt
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11
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Eskandarinia A, Gharakhloo M, Kermani PK, Navid S, Salami MA, Khodabakhshi D, Samadi A. Antibacterial self-healing bilayer dressing for epidermal sensors and accelerate wound repair. Carbohydr Polym 2023; 319:121171. [PMID: 37567712 DOI: 10.1016/j.carbpol.2023.121171] [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: 04/29/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 08/13/2023]
Abstract
This study aimed to investigate the effect of the bilayer hydrogel as a wound dressing on the wound-healing rate. We synthesized a self-healing hydrogel with optimized formulation by introducing natural polymer (chitosan) and arginine to the hydrogel composition. We then characterized the hydrogels using FT-IR, thermal analysis, mechanical testing, and in vitro and in vivo assay. The resulting bilayer wound dressing offers a lot of desirable characteristics, including good self-healing and repeatable adhesiveness. Likewise, the conductive bilayer wound dressing could be used to analyze the patient's healthcare data in real-time as epidermal sensors. Bilayer wound dressings remarkably have broad antibacterial efficacy against Gram-positive and Gram-negative bacteria. The potential applications of this bilayer wound dressing are illustrated by detectable body movement and conductivity. The wound-healing rate of bilayer wound dressings containing chitosan and arginine was higher, but those without the aforementioned ingredients had lower wound-healing efficacy. Additionally, promoting collagen synthesis and reducing wound infection has a considerable therapeutic impact on wounds. These results could have significant implications for the development of high-performance wound dressings.
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Affiliation(s)
- Asghar Eskandarinia
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mosayeb Gharakhloo
- Faculty of Chemistry, Biological and Chemical Research Center, University of Warsaw, 101 Żwirki i Wigury Av., PL 02-089 Warsaw, Poland
| | - Paria Khaloo Kermani
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sepehr Navid
- Core Research Facilities, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Ali Salami
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Darioush Khodabakhshi
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Samadi
- Department of Basic Sciences, School of Medicine, Bam University of Medical Sciences, Bam, Iran.
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12
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Liang W, Ni N, Huang Y, Lin C. An Advanced Review: Polyurethane-Related Dressings for Skin Wound Repair. Polymers (Basel) 2023; 15:4301. [PMID: 37959982 PMCID: PMC10649939 DOI: 10.3390/polym15214301] [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: 09/21/2023] [Revised: 10/25/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
The inability of wounds to heal effectively through normal repair has become a burden that seriously affects socio-economic development and human health. The therapy of acute and chronic skin wounds still poses great clinical difficulty due to the lack of suitable functional wound dressings. It has been found that dressings made of polyurethane exhibit excellent and diverse biological properties, but lack the functionality of clinical needs, and most dressings are unable to dynamically adapt to microenvironmental changes during the healing process at different stages of chronic wounds. Therefore, the development of multifunctional polyurethane composite materials has become a hot topic of research. This review describes the changes in physicochemical and biological properties caused by the incorporation of different polymers and fillers into polyurethane dressings and describes their applications in wound repair and regeneration. We listed several polymers, mainly including natural-based polymers (e.g., collagen, chitosan, and hyaluronic acid), synthetic-based polymers (e.g., polyethylene glycol, polyvinyl alcohol, and polyacrylamide), and some other active ingredients (e.g., LL37 peptide, platelet lysate, and exosomes). In addition to an introduction to the design and application of polyurethane-related dressings, we discuss the conversion and use of advanced functional dressings for applications, as well as future directions for development, providing reference for the development and new applications of novel polyurethane dressings.
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Affiliation(s)
| | | | | | - Changmin Lin
- Department of Histology and Embryology, Shantou University Medical College, Shantou 515041, China; (W.L.); (N.N.); (Y.H.)
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13
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Wang F, Sun M, Li D, Qin X, Liao Y, Liu X, Jia S, Xie Y, Zhong C. Multifunctional Asymmetric Bacterial Cellulose Membrane with Enhanced Anti-Bacterial and Anti-Inflammatory Activities for Promoting Infected Wound Healing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303591. [PMID: 37568253 DOI: 10.1002/smll.202303591] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/05/2023] [Indexed: 08/13/2023]
Abstract
An asymmetric wound dressing acts as a skin-like structure serves as a protective barrier between a wound and its surroundings. It allows for the absorption of tissue fluids and the release of active substances at the wound site, thus speeding up the healing process. However, the production of such wound dressings requires the acquisition of specialized tools, expensive polymers, and solvents that contain harmful byproducts. In this study, an asymmetric bacterial cellulose (ABC) wound dressing using starch as a porogen has been developed. By incorporating silver-metal organic frameworks (Ag-MOF) and curcumin into the ABC membrane, the wound dressing gains antioxidant, reactive oxygen species (ROS) scavenging, and anti-bacterial activities. Compared to BC-based wound dressings, this dressing promotes efficient dissolution and controlled release of curcumin and silver ions. In a full-thickness skin defect model, wound dressing not only inhibits the growth of bacteria on infected wounds but also regulates the release of curcumin to reduce inflammation and promote the production of epithelium, blood vessels, and collagen. Consequently, this dressing provides superior wound treatment compared to BC-based dressing.
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Affiliation(s)
- Fengping Wang
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science and Technology, Tianjin, P. R. China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science and Technology, Tianjin, P. R. China
- College of Traditional Chinese Medicine, Weifang Medical University, Weifang, Shandong, P. R. China
| | - Meiyan Sun
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science and Technology, Tianjin, P. R. China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Dongmei Li
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science and Technology, Tianjin, P. R. China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Xiaotong Qin
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science and Technology, Tianjin, P. R. China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Yuting Liao
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science and Technology, Tianjin, P. R. China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Xiaozhi Liu
- Tianjin Key Laboratory of Epigenetics for Organ Development in Preterm Infants, Tianjin, P. R. China
| | - Shiru Jia
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science and Technology, Tianjin, P. R. China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Yanyan Xie
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science and Technology, Tianjin, P. R. China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Cheng Zhong
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science and Technology, Tianjin, P. R. China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science and Technology, Tianjin, P. R. China
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14
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Anaya-Mancipe JM, Queiroz VM, dos Santos RF, Castro RN, Cardoso VS, Vermelho AB, Dias ML, Thiré RMSM. Electrospun Nanofibers Loaded with Plantago major L. Extract for Potential Use in Cutaneous Wound Healing. Pharmaceutics 2023; 15:1047. [PMID: 37111535 PMCID: PMC10144042 DOI: 10.3390/pharmaceutics15041047] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 04/29/2023] Open
Abstract
Plantago major L. is a plant available worldwide that has been traditionally used for several medical applications due to its wound healing, anti-inflammatory, and antimicrobial properties. This work aimed to develop and evaluate a nanostructured PCL electrospun dressing with P. major extract encapsulated in nanofibers for applications in wound healing. The extract from leaves was obtained by extraction in a mixture of water:ethanol = 1:1. The freeze-dried extract presented a minimum inhibitory concentration (MIC) for Staphylococcus Aureus susceptible and resistant to methicillin of 5.3 mg/mL, a high antioxidant capacity, but a low content of total flavonoids. Electrospun mats without defects were successfully produced using two P. major extract concentrations based on the MIC value. The extract incorporation in PCL nanofibers was confirmed using FTIR and contact angle measurements. The PCL/P. major extract was evaluated using DSC and TGA demonstrating that the incorporation of the extract decreases the thermal stability of the mats as well as the degree of crystallinity of PCL-based fibers. The P. major extract incorporation on electrospun mats produced a significant swelling degree (more than 400%) and increased the capacity of adsorbing wound exudates and moisture, important characteristics for skin healing. The extract-controlled release evaluated using in vitro study in PBS (pH, 7.4) shows that the P. major extract delivery from the mats occurs in the first 24 h, demonstrating their potential capacity to be used in wound healing.
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Affiliation(s)
- Javier M. Anaya-Mancipe
- COPPE/Program of Metallurgical and Materials Engineering—PEMM, Universidade Federal de Rio de Janeiro—UFRJ, Rio de Janeiro 21941-599, RJ, Brazil; (J.M.A.-M.)
- Institute of Macromolecules Professor Eloisa Mano—IMA, Universidade Federal do Rio de Janeiro—UFRJ, Rio de Janeiro 21941-598, RJ, Brazil
| | - Vanessa M. Queiroz
- COPPE/Program of Metallurgical and Materials Engineering—PEMM, Universidade Federal de Rio de Janeiro—UFRJ, Rio de Janeiro 21941-599, RJ, Brazil; (J.M.A.-M.)
| | - Rafael F. dos Santos
- Chemistry Institute, Universidade Federal Rural do Rio de Janeiro—UFRRJ, Seropédica 23890-000, RJ, Brazil
| | - Rosane N. Castro
- Chemistry Institute, Universidade Federal Rural do Rio de Janeiro—UFRRJ, Seropédica 23890-000, RJ, Brazil
| | - Verônica S. Cardoso
- Bioinovar—Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro—UFRJ, Rio de Janeiro 21941-902, RJ, Brazil
| | - Alane B. Vermelho
- Bioinovar—Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro—UFRJ, Rio de Janeiro 21941-902, RJ, Brazil
| | - Marcos L. Dias
- Institute of Macromolecules Professor Eloisa Mano—IMA, Universidade Federal do Rio de Janeiro—UFRJ, Rio de Janeiro 21941-598, RJ, Brazil
| | - Rossana M. S. M. Thiré
- COPPE/Program of Metallurgical and Materials Engineering—PEMM, Universidade Federal de Rio de Janeiro—UFRJ, Rio de Janeiro 21941-599, RJ, Brazil; (J.M.A.-M.)
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15
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Liu H, Bai Y, Huang C, Wang Y, Ji Y, Du Y, Xu L, Yu DG, Bligh SWA. Recent Progress of Electrospun Herbal Medicine Nanofibers. Biomolecules 2023; 13:biom13010184. [PMID: 36671570 PMCID: PMC9855805 DOI: 10.3390/biom13010184] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/28/2022] [Accepted: 01/09/2023] [Indexed: 01/18/2023] Open
Abstract
Herbal medicine has a long history of medical efficacy with low toxicity, side effects and good biocompatibility. However, the bioavailability of the extract of raw herbs and bioactive compounds is poor because of their low water solubility. In order to overcome the solubility issues, electrospinning technology can offer a delivery alternative to resolve them. The electrospun fibers have the advantages of high specific surface area, high porosity, excellent mechanical strength and flexible structures. At the same time, various natural and synthetic polymer-bound fibers can mimic extracellular matrix applications in different medical fields. In this paper, the development of electrospinning technology and polymers used for incorporating herbal medicine into electrospun nanofibers are reviewed. Finally, the recent progress of the applications of these herbal medicine nanofibers in biomedical (drug delivery, wound dressing, tissue engineering) and food fields along with their future prospects is discussed.
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Affiliation(s)
- Hang Liu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yubin Bai
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Chang Huang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Ying Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yuexin Ji
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yutong Du
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Lin Xu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
- Correspondence: (D.-G.Y.); (S.W.A.B.)
| | - Sim Wan Annie Bligh
- School of Health Sciences, Caritas Institute of Higher Education, Hong Kong 999077, China
- Correspondence: (D.-G.Y.); (S.W.A.B.)
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16
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Advances in the Preparation of Nanofiber Dressings by Electrospinning for Promoting Diabetic Wound Healing. Biomolecules 2022; 12:biom12121727. [PMID: 36551155 PMCID: PMC9775188 DOI: 10.3390/biom12121727] [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: 10/26/2022] [Revised: 11/15/2022] [Accepted: 11/19/2022] [Indexed: 11/25/2022] Open
Abstract
Chronic diabetic wounds are one of the main complications of diabetes, manifested by persistent inflammation, decreased epithelialization motility, and impaired wound healing. This will not only lead to the repeated hospitalization of patients, but also bear expensive hospitalization costs. In severe cases, it can lead to amputation, sepsis or death. Electrospun nanofibers membranes have the characteristics of high porosity, high specific surface area, and easy functionalization of structure, so they can be used as a safe and effective platform in the treatment of diabetic wounds and have great application potential. This article briefly reviewed the pathogenesis of chronic diabetic wounds and the types of dressings commonly used, and then reviewed the development of electrospinning technology in recent years and the advantages of electrospun nanofibers in the treatment of diabetic wounds. Finally, the reports of different types of nanofiber dressings on diabetic wounds are summarized, and the method of using multi-drug combination therapy in diabetic wounds is emphasized, which provides new ideas for the effective treatment of diabetic wounds.
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17
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Kovaleva PA, Pariy IO, Chernozem RV, Yu. Zadorozhnyy M, Permyakova ES, Kolesnikov EA, Surmeneva MA, Surmenev RA, Senatov FS. Shape memory effect in hybrid polylactide-based polymer scaffolds functionalized with reduced graphene oxide for tissue engineering. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Recent Advances of Chitosan Formulations in Biomedical Applications. Int J Mol Sci 2022; 23:ijms231810975. [PMID: 36142887 PMCID: PMC9504745 DOI: 10.3390/ijms231810975] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 02/07/2023] Open
Abstract
Chitosan, a naturally abundant cationic polymer, is chemically composed of cellulose-based biopolymers derived by deacetylating chitin. It offers several attractive characteristics such as renewability, hydrophilicity, biodegradability, biocompatibility, non-toxicity, and a broad spectrum of antimicrobial activity towards gram-positive and gram-negative bacteria as well as fungi, etc., because of which it is receiving immense attention as a biopolymer for a plethora of applications including drug delivery, protective coating materials, food packaging films, wastewater treatment, and so on. Additionally, its structure carries reactive functional groups that enable several reactions and electrochemical interactions at the biomolecular level and improves the chitosan’s physicochemical properties and functionality. This review article highlights the extensive research about the properties, extraction techniques, and recent developments of chitosan-based composites for drug, gene, protein, and vaccine delivery applications. Its versatile applications in tissue engineering and wound healing are also discussed. Finally, the challenges and future perspectives for chitosan in biomedical applications are elucidated.
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19
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Song Z, Wang J, Tan S, Gao J, Wang L. Conductive biomimetic bilayer fibrous scaffold for skin regeneration. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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20
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Optimization of Oligomer Chitosan/Polyvinylpyrrolidone Coating for Enhancing Antibacterial, Hemostatic Effects and Biocompatibility of Nanofibrous Wound Dressing. Polymers (Basel) 2022; 14:polym14173541. [PMID: 36080616 PMCID: PMC9460443 DOI: 10.3390/polym14173541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/06/2022] [Accepted: 08/13/2022] [Indexed: 11/17/2022] Open
Abstract
A synergistic multilayer membrane design is necessary to satisfy a multitude of requirements of an ideal wound dressing. In this study, trilayer dressings with asymmetric wettability, composed of electrospun polycaprolactone (PCL) base membranes coated with oligomer chitosan (COS) in various concentrations of polyvinylpyrrolidone (PVP), are fabricated for wound dressing application. The membranes are expected to synergize the hygroscopic, antibacterial, hemostatic, and biocompatible properties of PCL and COS. The wound dressing was coated by spraying the solution of 3% COS and 6% PVP on the PCL base membrane (PVP6–3) three times, which shows good interaction with biological subjects, including bacterial strains and blood components. PVP6–3 samples confirm the diameter of inhibition zones of 20.0 ± 2.5 and 17.9 ± 2.5 mm against Pseudomonas aeruginosa and Staphylococcus aureus, respectively. The membrane induces hemostasis with a blood clotting index of 74% after 5 min of contact. In the mice model, wounds treated with PVP6–3 closed 95% of the area after 10 days. Histological study determines the progression of skin regeneration with the construction of granulation tissue, new vascular systems, and hair follicles. Furthermore, the newly-growth skin shares structural resemblances to that of native tissue. This study suggests a simple approach to a multi-purpose wound dressing for clinical treatment.
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21
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Nanostructured Electrospun Polycaprolactone-Propolis Mats Composed of Different Morphologies for Potential Use in Wound Healing. Molecules 2022; 27:molecules27165351. [PMID: 36014590 PMCID: PMC9413572 DOI: 10.3390/molecules27165351] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to investigate different types of morphologies obtained using the electrospinning process to produce a material that enables wound healing while performing a controlled release. Using benign solvents, the authors prepared and characterised electrospun polycaprolactone mats loaded with propolis, a popular extract in traditional medicine with potential for skin repair. Different morphologies were obtained from distinct storage periods of the solution before electrospinning to investigate the effect of PCL hydrolysis (average diameters of fibres and beads: 159.2-280.5 nm and 1.9-5.6 μm, respectively). Phytochemical and FTIR analyses of the extract confirmed propolis composition. GPC and viscosity analyses showed a decrease in polymer molecular weight over the storage period (about a 70% reduction over 14 days) and confirmed that it was responsible for the nanostructure diversity. Moreover, propolis acted as a lubricant agent, affecting the spun solutions' viscosity and the thermal properties and hydrophilicity of the mats. All samples were within the value range of the water vapour transpiration rate of the commercial products (1263.08 to 2179.84 g/m2·day). Even though the presence of beads did not affect the propolis release pattern, an in vitro wound-healing assay showed that propolis-loaded mats composed of beaded fibres increased the cell migration process. Thus, these films could present the potential for use in wound dressing applications.
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22
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Preparation of 10-undecenoic acid based polyurethane/PCL fibers by electrospinning method and investigation of their antifungal properties. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04322-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Mirhaj M, Labbaf S, Tavakoli M, Seifalian A. An Overview on the Recent Advances in the Treatment of Infected Wounds: Antibacterial Wound Dressings. Macromol Biosci 2022; 22:e2200014. [PMID: 35421269 DOI: 10.1002/mabi.202200014] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/20/2022] [Indexed: 11/11/2022]
Abstract
A wound can be surgical, cuts from an operation or due to accident and trauma. The infected wound, as a result of bacteria growth within the damaged skin, interrupts the natural wound healing process and significantly impacts the quality of life. Wound dressing is an important segment of the skincare industry with its economic burden estimated at $ 20.4 billion (in 2021) in the global market. The results of recent clinical trials suggest that the use of modern dressings can be the easiest, most accessible, and most cost-effective way to treat chronic wounds and, hence, holds significant promise. With the sheer number of dressings in the market, the selection of correct dressing is confusing for clinicians and healthcare workers. The aim of this research was to review widely used types of antibacterial wound dressings, as well as emerging products, for their efficiency and mode of action. In this review, we focus on introducing antibiotics and antibacterial nanoparticles as two important and clinically widely used categories of antibacterial agents. The perspectives and challenges for paving the way for future research in this field are also discussed. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Marjan Mirhaj
- Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Sheyda Labbaf
- Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Mohamadreza Tavakoli
- Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Amelia Seifalian
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
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24
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Zhang X, Meng Y, Gong B, Wang T, Lu Y, Zhang L, Xue J. Electrospun Nanofibers for Manipulating the Soft Tissue Regeneration. J Mater Chem B 2022; 10:7281-7308. [DOI: 10.1039/d2tb00609j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Soft tissue damage is a common clinical problem that affects the lives of a large number of patients all over the world. It is of great importance to develop functional...
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