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Dong L, Fan Z, Fang B, Zhao X, Yao H, Cai G, Yang S, Zhang G, Cheng X, Feng Y, Mi S, Sun W. Oriented cellulose hydrogel: Directed tissue regeneration for reducing corneal leukoplakia and managing fungal corneal ulcers. Bioact Mater 2024; 41:15-29. [PMID: 39101028 PMCID: PMC11292264 DOI: 10.1016/j.bioactmat.2024.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 06/18/2024] [Accepted: 07/04/2024] [Indexed: 08/06/2024] Open
Abstract
Fungal corneal ulcer is one of the leading causes of corneal blindness in developing countries. Corneal scars such as leukoplakia are formed due to inflammation, oxidative stress and non-directed repair, which seriously affect the patients' subsequent visual and life quality. In this study, drawing inspiration from the oriented structure of collagen fibers within the corneal stroma, we first proposed the directional arrangement of CuTA-CMHT hydrogel system at micro and macro scales based on the 3D printing extrusion method combined with secondary patterning. It played an antifungal role and induced oriented repair in therapy of fungal corneal ulcer. The results showed that it effectively inhibited Candida albicans, Aspergillus Niger, Fusarium sapropelum, which mainly affects TNF, NF-kappa B, and HIF-1 signaling pathways, achieving effective antifungal functions. More importantly, the fibroblasts interacted with extracellular matrix (ECM) of corneal stroma through formation of focal adhesions, promoted the proliferation and directional migration of cells in vitro, induced the directional alignment of collagen fibers and corneal stromal orthogonally oriented repair in vivo. This process is mainly associated with MYLK, MYL9, and ITGA3 molecules. Furthermore, the downregulation the growth factors TGF-β and PDGF-β inhibits myofibroblast development and reduces scar-type ECM production, thereby reducing corneal leukoplakia. It also activates the PI3K-AKT signaling pathway, promoting corneal healing. In conclusion, the oriented CuTA-CMHT hydrogel system mimics the orthogonal arrangement of collagen fibers, inhibits inflammation, eliminates reactive oxygen species, and reduces corneal leukoplakia, which is of great significance in the treatment of fungal corneal ulcer and is expected to write a new chapter in corneal tissue engineering.
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Affiliation(s)
- Lina Dong
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
- Department of Burns, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Zixin Fan
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, Guangdong, 518040, China
| | - Bixing Fang
- Department of Otolaryngology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Xiaoyu Zhao
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Hongyi Yao
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Gangpei Cai
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Shuo Yang
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, Guangdong, 518040, China
| | - Guoming Zhang
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, Guangdong, 518040, China
| | - Xiaoqi Cheng
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Yun Feng
- Department of Ophthalmology, Peking University Third Hospital, Beijing, 100191, China
| | - Shengli Mi
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Wei Sun
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
- Department of Mechanical Engineering, Biomanufacturing Center, Tsinghua University, Beijing, China
- Department of Mechanical Engineering, Drexel University, Philadelphia, PA, USA
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Luo R, Xian D, Li F, Zhou G, Jiang L, Wu J, Lin L, Zheng Y, Liu G, Xu Q, Pan X, Wu C, Peng T, Quan G, Lu C. Epsilon-poly-l-lysine microneedle patch loaded with amorphous doxycycline nanoparticles for synergistic treatment of skin infection. Int J Biol Macromol 2024; 266:131383. [PMID: 38580030 DOI: 10.1016/j.ijbiomac.2024.131383] [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: 12/01/2023] [Revised: 03/31/2024] [Accepted: 04/02/2024] [Indexed: 04/07/2024]
Abstract
The development of antibiotic-loaded microneedles has been hindered for years by limited excipient options, restricted drug-loading space, poor microneedle formability, and short-term drug retention. Therefore, this study proposes a dissolving microneedle fabricated from the host-defense peptide ε-poly-l-lysine (EPL) as an antibacterial adjuvant system for delivering antibiotics. EPL serves not only as a major matrix material for the microneedle tips, but also as a broad-spectrum antibacterial agent that facilitates the intracellular accumulation of the antibiotic doxycycline (DOX) by increasing bacterial cell membrane permeability. Furthermore, the formation of physically crosslinked networks of EPL affords microneedle tips with improved formability, good mechanical properties, and amorphous nanoparticles (approximately 7.2 nm) of encapsulated DOX. As a result, a high total loading content of both antimicrobials up to 2319.1 μg/patch is achieved for efficient transdermal drug delivery. In a Pseudomonas aeruginosa-induced deep cutaneous infection model, the EPL microneedles demonstrates potent and long-term effects by synergistically enhancing antibiotic activities and prolonging drug retention in infected lesions, resulting in remarkable therapeutic efficacy with 99.91 % (3.04 log) reduction in skin bacterial burden after a single administration. Overall, our study highlights the distinct advantages of EPL microneedles and their potential in clinical antibacterial practice when loaded with amorphous DOX nanoparticles.
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Affiliation(s)
- Rui Luo
- College of Pharmacy, Jinan University, Guangzhou 511436, China
| | - Dongyi Xian
- College of Pharmacy, Jinan University, Guangzhou 511436, China
| | - Feng Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Guiling Zhou
- Unit of Pharmaco-Therapy, -Epidemiology and -Economics (PTEE), Department of Pharmacy, University of Groningen, Groningen 9712 CP, the Netherlands
| | - Ling Jiang
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou 515041, China
| | - Jieyi Wu
- College of Pharmacy, Jinan University, Guangzhou 511436, China
| | - Liming Lin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yuwei Zheng
- College of Pharmacy, Jinan University, Guangzhou 511436, China
| | - Guanyu Liu
- School of Physics & Photoelectric Engineering, Guangdong University of Technology, Guangzhou 510650, China
| | - Qian Xu
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou 515041, China
| | - Xin Pan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Chuanbin Wu
- College of Pharmacy, Jinan University, Guangzhou 511436, China
| | - Tingting Peng
- College of Pharmacy, Jinan University, Guangzhou 511436, China.
| | - Guilan Quan
- College of Pharmacy, Jinan University, Guangzhou 511436, China.
| | - Chao Lu
- College of Pharmacy, Jinan University, Guangzhou 511436, China; Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou 515041, China.
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3
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Aderibigbe BA. Nanotherapeutics for the delivery of antifungal drugs. Ther Deliv 2024. [PMID: 38174574 DOI: 10.4155/tde-2023-0090] [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] [Indexed: 01/05/2024] Open
Abstract
The treatment of fungal infections is challenging with high death rates reported among immunocompromised patients. The currently available antifungals suffer from poor bioavailability and solubility, pharmacokinetics, and drug resistance, with limited cellular uptake. The clinical pipeline of new antifungals is dry. The incorporation of antifungal drugs into polymer-based nanocarriers to form nanotherapeutics is a promising approach to enhance the therapeutic outcomes of the available antifungal drugs. This review summarizes different polymer-based nanotherapeutics strategies that have been explored for the delivery of antifungals, resulting in enhanced therapeutic outcomes, such as improved pharmacokinetics, targeted/sustained delivery, prolonged drug circulation, retention of the drugs at the localized site of action, and overcoming drug resistance when compared with the free antifungal drugs.
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Rahmani Del Bakhshayesh A, Saghebasl S, Asadi N, Kashani E, Mehdipour A, Nezami Asl A, Akbarzadeh A. Recent advances in nano-scaffolds for tissue engineering applications: Toward natural therapeutics. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023; 15:e1882. [PMID: 36815236 DOI: 10.1002/wnan.1882] [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: 11/29/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 02/24/2023]
Abstract
Among the promising methods for repairing or replacing tissue defects in the human body and the hottest research topics in medical science today are regenerative medicine and tissue engineering. On the other hand, nanotechnology has been expanded into different areas of regenerative medicine and tissue engineering due to its essential benefits in improving performance in various fields. Nanotechnology, a helpful strategy in tissue engineering, offers new solutions to unsolved problems. Especially considering the excellent physicochemical properties of nanoscale structures, their application in regenerative medicine has been gradually developed, and a lot of research has been conducted in this field. In this regard, various nanoscale structures, including nanofibers, nanosheets, nanofilms, nano-clays, hollow spheres, and different nanoparticles, have been developed to advance nanotechnology strategies with tissue repair goals. Here, we comprehensively review the application of the mentioned nanostructures in constructing nanocomposite scaffolds for regenerative medicine and tissue engineering. This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Implantable Materials and Surgical Technologies > Nanotechnology in Tissue Repair and Replacement Diagnostic Tools > Biosensing.
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Affiliation(s)
- Azizeh Rahmani Del Bakhshayesh
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Solmaz Saghebasl
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nahideh Asadi
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elmira Kashani
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahmad Mehdipour
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Abolfazl Akbarzadeh
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Cesur S, Ilhan E, Tut TA, Kaya E, Dalbayrak B, Bosgelmez-Tinaz G, Arısan ED, Gunduz O, Kijeńska-Gawrońska E. Design of Cinnamaldehyde- and Gentamicin-Loaded Double-Layer Corneal Nanofiber Patches with Antibiofilm and Antimicrobial Effects. ACS OMEGA 2023; 8:28109-28121. [PMID: 37576652 PMCID: PMC10413367 DOI: 10.1021/acsomega.3c00914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 07/14/2023] [Indexed: 08/15/2023]
Abstract
In this study, two-layer poly(vinyl alcohol)/gelatin (PVA/GEL) nanofiber patches containing cinnamaldehyde (CA) in the first layer and gentamicin (GEN) in the second layer were produced by the electrospinning method. The morphology, chemical structures, and thermal temperatures of the produced pure (PVA/GEL), CA-loaded (PVA/GEL/CA), GEN-loaded (PVA/GEL/GEN), and combined drug-loaded (PVA/GEL/CA/GEN) nanofiber patches were determined by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy, and differential scanning calorimetry, respectively. Their mechanical properties, swelling and degradation behavior, and drug release kinetics were investigated. SEM images showed that both drug-free and drug-loaded nanofiber patches possess smooth and monodisperse structures, and nanofiber size increase occurred as the amount of drug increased. The tensile test results showed that the mechanical strength decreased as the drug was loaded. According to the drug release results, CA release ended at the 96th hour, while GEN release continued until the 264th hour. The antibacterial and antibiofilm activities of PVA/GEL, PVA/GEL/CA, PVA/GEL/GEN, and PVA/GEL/CA/GEN nanofiber patches against Pseudomonas aeruginosa and Staphylococcus aureus were evaluated. Results showed that PVA/GEL/GEN and PVA/GEL/CA/GEN nanofiber patches have excellent antibacterial and antibiofilm activities. Moreover, all materials were biocompatible, with no cytotoxic effects in the mammalian cell model for 8 days. PVA/GEL/GEN nanofiber patches were the most promising material for a high cell survival ratio, which was confirmed by SEM images. This research aims to develop an alternative method to stop and treat the rapid progression of bacterial keratitis.
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Affiliation(s)
- Sumeyye Cesur
- Center
for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Department
of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Elif Ilhan
- Center
for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
| | - Tufan Arslan Tut
- Center
for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Department
of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Elif Kaya
- Department
of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Marmara University, Istanbul 34668, Turkey
| | - Basak Dalbayrak
- Department
of Biotechnology, Institute of Biotechnology, Gebze Technical University, Gebze 41400, Kocaeli, Turkey
| | - Gulgun Bosgelmez-Tinaz
- Department
of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Marmara University, Istanbul 34668, Turkey
| | - Elif Damla Arısan
- Department
of Biotechnology, Institute of Biotechnology, Gebze Technical University, Gebze 41400, Kocaeli, Turkey
| | - Oguzhan Gunduz
- Center
for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Department
of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Ewa Kijeńska-Gawrońska
- Centre
for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 02-822 Warsaw, Poland
- Faculty of
Materials Science and Engineering, Warsaw
University of Technology, 02-507 Warsaw, Poland
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Xin Y, Quan L, Zhang H, Ao Q. Emerging Polymer-Based Nanosystem Strategies in the Delivery of Antifungal Drugs. Pharmaceutics 2023; 15:1866. [PMID: 37514052 PMCID: PMC10386574 DOI: 10.3390/pharmaceutics15071866] [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: 06/07/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023] Open
Abstract
Nanosystems-based antifungal agents have emerged as an effective strategy to address issues related to drug resistance, drug release, and toxicity. Among the diverse materials employed for antifungal drug delivery, polymers, including polysaccharides, proteins, and polyesters, have gained significant attention due to their versatility. Considering the complex nature of fungal infections and their varying sites, it is crucial for researchers to carefully select appropriate polymers based on specific scenarios when designing antifungal agent delivery nanosystems. This review provides an overview of the various types of nanoparticles used in antifungal drug delivery systems, with a particular emphasis on the types of polymers used. The review focuses on the application of drug delivery systems and the release behavior of these systems. Furthermore, the review summarizes the critical physical properties and relevant information utilized in antifungal polymer nanomedicine delivery systems and briefly discusses the application prospects of these systems.
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Affiliation(s)
- Yuan Xin
- NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial & Institute of Regulatory Science for Medical Device & National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Liang Quan
- NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial & Institute of Regulatory Science for Medical Device & National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Hengtong Zhang
- NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial & Institute of Regulatory Science for Medical Device & National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Qiang Ao
- NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial & Institute of Regulatory Science for Medical Device & National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
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7
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Tomar Y, Pandit N, Priya S, Singhvi G. Evolving Trends in Nanofibers for Topical Delivery of Therapeutics in Skin Disorders. ACS OMEGA 2023; 8:18340-18357. [PMID: 37273582 PMCID: PMC10233693 DOI: 10.1021/acsomega.3c00924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 05/11/2023] [Indexed: 06/06/2023]
Abstract
Nanotechnology has yielded nanostructure-based drug delivery approaches, among which nanofibers have been explored and researched for the potential topical delivery of therapeutics. Nanofibers are filaments or thread-like structures in the nanometer size range that are fabricated using various polymers, such as natural or synthetic polymers or their combination. The size or diameter of the nanofibers depends upon the polymers, the techniques of preparation, and the design specification. The four major processing techniques, phase separation, self-assembly, template synthesis, and electrospinning, are most commonly used for the fabrication of nanofibers. Nanofibers have a unique structure that needs a multimethod approach to study their morphology and characterization parameters. They are gaining attention as drug delivery carriers, and the substantially vast surface area of the skin makes it a potentially promising strategy for topical drug products for various skin disorders such as psoriasis, skin cancers, skin wounds, bacterial and fungal infections, etc. However, the large-scale production of nanofibers with desired properties remains challenging, as the widely used electrospinning processes have certain limitations, such as poor yield, use of high voltage, and difficulty in achieving in situ nanofiber deposition on various substrates. This review highlights the insights into fabrication strategies, applications, recent clinical trials, and patents of nanofibers for different skin disorders in detail. Additionally, it discusses case studies of its effective utilization in the treatment of various skin disorders for a better understanding for readers.
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Affiliation(s)
- Yashika Tomar
- Industrial
Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science (BITS) - Pilani, Pilani Campus, Rajasthan 333031, India
| | - Nisha Pandit
- Industrial
Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science (BITS) - Pilani, Pilani Campus, Rajasthan 333031, India
| | - Sakshi Priya
- Industrial
Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science (BITS) - Pilani, Pilani Campus, Rajasthan 333031, India
| | - Gautam Singhvi
- Industrial
Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science (BITS) - Pilani, Pilani Campus, Rajasthan 333031, India
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Zhang G, Li T, Liu J, Wu X, Yi H. Cinnamaldehyde-Contained Polymers and Their Biomedical Applications. Polymers (Basel) 2023; 15:polym15061517. [PMID: 36987298 PMCID: PMC10051895 DOI: 10.3390/polym15061517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/03/2023] [Accepted: 03/16/2023] [Indexed: 03/22/2023] Open
Abstract
Cinnamaldehyde, a natural product that can be extracted from a variety of plants of the genus Cinnamomum, exhibits excellent biological activities including antibacterial, antifungal, anti-inflammatory, and anticancer properties. To overcome the disadvantages (e.g., poor water solubility and sensitivity to light) or enhance the advantages (e.g., high reactivity and promoting cellular reactive oxygen species production) of cinnamaldehyde, cinnamaldehyde can be loaded into or conjugated with polymers for sustained or controlled release, thereby prolonging the effective action time of its biological activities. Moreover, when cinnamaldehyde is conjugated with a polymer, it can also introduce environmental responsiveness to the polymer through the form of stimuli-sensitive linkages between its aldehyde group and various functional groups of polymers. The environmental responsiveness provides the great potential of cinnamaldehyde-conjugated polymers for applications in the biomedical field. In this review, the strategies for preparing cinnamaldehyde-contained polymers are summarized and their biomedical applications are also reviewed.
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Affiliation(s)
- Guangyan Zhang
- School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
- Correspondence: (G.Z.); (J.L.)
| | - Tianlong Li
- School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Jia Liu
- Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Correspondence: (G.Z.); (J.L.)
| | - Xinran Wu
- School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Hui Yi
- School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
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Application of Convergent Science and Technology toward Ocular Disease Treatment. Pharmaceuticals (Basel) 2023; 16:ph16030445. [PMID: 36986546 PMCID: PMC10053244 DOI: 10.3390/ph16030445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/07/2023] [Accepted: 03/10/2023] [Indexed: 03/19/2023] Open
Abstract
Eyes are one of the main critical organs of the body that provide our brain with the most information about the surrounding environment. Disturbance in the activity of this informational organ, resulting from different ocular diseases, could affect the quality of life, so finding appropriate methods for treating ocular disease has attracted lots of attention. This is especially due to the ineffectiveness of the conventional therapeutic method to deliver drugs into the interior parts of the eye, and the also presence of barriers such as tear film, blood-ocular, and blood-retina barriers. Recently, some novel techniques, such as different types of contact lenses, micro and nanoneedles and in situ gels, have been introduced which can overcome the previously mentioned barriers. These novel techniques could enhance the bioavailability of therapeutic components inside the eyes, deliver them to the posterior side of the eyes, release them in a controlled manner, and reduce the side effects of previous methods (such as eye drops). Accordingly, this review paper aims to summarize some of the evidence on the effectiveness of these new techniques for treating ocular disease, their preclinical and clinical progression, current limitations, and future perspectives.
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Baykara D, Pilavci E, Cesur S, Ilhan E, Ulag S, Sengor M, Kijeńska‐Gawrońska E, Gunduz O. Controlled Release of Gentamicin from Electrospun Poly(Vinyl Alcohol)/Gelatin Nanofibers: The Effect of Crosslinking Time Using Glutaraldehyde Vapor. ChemistrySelect 2023. [DOI: 10.1002/slct.202203681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Dilruba Baykara
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM) Marmara University Turkey
- Department of Bioengineering Faculty of Chemical and Metallurgical Engineering Yildiz Technical University Turkey
| | - Esra Pilavci
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM) Marmara University Turkey
- Department of Metallurgical and Materials Engineering Faculty of Technology Marmara University Turkey
| | - Sumeyye Cesur
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM) Marmara University Turkey
| | - Elif Ilhan
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM) Marmara University Turkey
- Department of Bioengineering Faculty of Engineering Marmara University Turkey
| | - Songul Ulag
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM) Marmara University Turkey
| | - Mustafa Sengor
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM) Marmara University Turkey
- Department of Metallurgical and Materials Engineering Faculty of Technology Marmara University Turkey
| | - Ewa Kijeńska‐Gawrońska
- Centre for Advanced Materials and Technologies CEZAMAT Warsaw University of Technology Poland
- Faculty of Materials Science and Engineering Warsaw University of Technology Poland
| | - Oguzhan Gunduz
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM) Marmara University Turkey
- Department of Metallurgical and Materials Engineering Faculty of Technology Marmara University Turkey
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11
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Lee JW, Song KH. Fibrous hydrogels by electrospinning: Novel platforms for biomedical applications. J Tissue Eng 2023; 14:20417314231191881. [PMID: 37581121 PMCID: PMC10423451 DOI: 10.1177/20417314231191881] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 07/19/2023] [Indexed: 08/16/2023] Open
Abstract
Hydrogels, hydrophilic and biocompatible polymeric networks, have been used for numerous biomedical applications because they have exhibited abilities to mimic features of extracellular matrix (ECM). In particular, the hydrogels engineered with electrospinning techniques have shown great performances in biomedical applications. Electrospinning techniques are to generate polymeric micro/nanofibers that can mimic geometries of natural ECM by drawing micro/nanofibers from polymer precursors with electrical forces, followed by structural stabilization of them. By exploiting the electrospinning techniques, the fibrous hydrogels have been fabricated and utilized as 2D/3D cell culture platforms, implantable scaffolds, and wound dressings. In addition, some hydrogels that respond to external stimuli have been used to develop biosensors. For comprehensive understanding, this review covers electrospinning processes, hydrogel precursors used for electrospinning, characteristics of fibrous hydrogels and specific biomedical applications of electrospun fibrous hydrogels and highlight their potential to promote use in biomedical applications.
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Affiliation(s)
- Ji Woo Lee
- Department of Nano-Bioengineering, Incheon National University, Incheon, Republic of Korea
| | - Kwang Hoon Song
- Department of Nano-Bioengineering, Incheon National University, Incheon, Republic of Korea
- Research Center of Brain-Machine Interface, Incheon National University, Incheon, Republic of Korea
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12
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Izgis H, Ilhan E, Kalkandelen C, Celen E, Guncu MM, Turkoglu Sasmazel H, Gunduz O, Ficai D, Ficai A, Constantinescu G. Manufacturing of Zinc Oxide Nanoparticle (ZnO NP)-Loaded Polyvinyl Alcohol (PVA) Nanostructured Mats Using Ginger Extract for Tissue Engineering Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3040. [PMID: 36080077 PMCID: PMC9457793 DOI: 10.3390/nano12173040] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
In this research, as an alternative to chemical and physical methods, environmentally and cost-effective antimicrobial zinc oxide nanoparticles (ZnO NP) were produced by the green synthesis method. The current study focuses on the production of ZnO NP starting from adequate precursor and Zingiber officinale aqueous root extracts (ginger). The produced ZnO NP was loaded into electrospun nanofibers at different concentrations for various tissue engineering applications such as wound dressings. The produced ZnO NPs and ZnO NP-loaded nanofibers were examined by Scanning Electron Microscopy (SEM) for morphological assessments and Fourier-transform infrared spectrum (FT-IR) for chemical assessments. The disc diffusion method was used to test the antimicrobial activity of ZnO NP and ZnO NP-loaded nanofibers against three representatives strains, Escherichia coli (Gram-negative bacteria), Staphylococcus aureus (Gram-positive bacteria), and Candida albicans (fungi) microorganisms. The strength and stretching of the produced fibers were assessed using tensile tests. Since water absorption and weight loss behaviors are very important in tissue engineering applications, swelling and degradation analyses were applied to the produced nanofibers. Finally, the MTT test was applied to analyze biocompatibility. According to the findings, ZnO NP-loaded nanofibers were successfully synthesized using a green precipitation approach and can be employed in tissue engineering applications such as wound dressing.
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Affiliation(s)
- Hursima Izgis
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
| | - Elif Ilhan
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Department of Bioengineering, Faculty of Engineering, Marmara University, Istanbul 34722, Turkey
| | - Cevriye Kalkandelen
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Department of Electronics and Automation, Vocational School of Technical Sciences, Istanbul University-Cerrahpasa, Istanbul 34500, Turkey
| | - Emrah Celen
- Department of Metallurgical and Materials Engineering, Atilim University, Ankara 06830, Turkey
| | - Mehmet Mucahit Guncu
- Department of Medical Microbiology, School of Medicine, Marmara University, Istanbul 34722, Turkey
| | - Hilal Turkoglu Sasmazel
- Department of Metallurgical and Materials Engineering, Atilim University, Ankara 06830, Turkey
| | - Oguzhan Gunduz
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Denisa Ficai
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania
- National Center for Micro and Nanomaterials, UPB, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Anton Ficai
- National Center for Micro and Nanomaterials, UPB, Splaiul Independentei 313, 060042 Bucharest, Romania
- Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania
- Academy of Romanian Scientists, Ilfov Street 3, 050045 Bucharest, Romania
| | - Gabriel Constantinescu
- Department of Gastroenterology, Clinical Emergency Hospital of Bucharest, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
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