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Hedayati S, Tarahi M, Iraji A, Hashempur MH. Recent developments in the encapsulation of lavender essential oil. Adv Colloid Interface Sci 2024; 331:103229. [PMID: 38878587 DOI: 10.1016/j.cis.2024.103229] [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: 12/31/2023] [Revised: 06/08/2024] [Accepted: 06/09/2024] [Indexed: 07/31/2024]
Abstract
The unregulated and extensive application of synthetic compounds, such as preservatives, pesticides, and drugs, poses serious concerns to the environment, food security, and global health. Essential oils (EOs) are valid alternatives to these synthetic chemicals due to their therapeutic, antioxidant, and antimicrobial activities. Lavender essential oil (LEO) can be potentially applied in food, cosmetic, textile, agricultural, and pharmaceutical industries. However, its bioactivity can be compromised by its poor stability and solubility, which severely restrict its industrial applications. Encapsulation techniques can improve the functionality of LEO and preserve its bioactivity during storage. This review reports recent advances in the encapsulation of LEO by different methods, such as liposomes, emulsification, spray drying, complex coacervation, inclusion complexation, and electrospinning. It also outlines the effects of different processing conditions and carriers on the stability, physicochemical properties, and release behavior of encapsulated LEO. Moreover, this review focuses on the applications of encapsulated LEO in different food and non-food products.
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Affiliation(s)
- Sara Hedayati
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Tarahi
- Department of Food Science and Technology, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Aida Iraji
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Hashem Hashempur
- Research Center for Traditional Medicine and History of Medicine, Department of Persian Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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2
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Türkoğlu GC, Khomarloo N, Mohsenzadeh E, Gospodinova DN, Neznakomova M, Salaün F. PVA-Based Electrospun Materials-A Promising Route to Designing Nanofiber Mats with Desired Morphological Shape-A Review. Int J Mol Sci 2024; 25:1668. [PMID: 38338946 PMCID: PMC10855838 DOI: 10.3390/ijms25031668] [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: 12/23/2023] [Revised: 01/23/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
Poly(vinyl alcohol) is one of the most attractive polymers with a wide range of uses because of its water solubility, biocompatibility, low toxicity, good mechanical properties, and relatively low cost. This review article focuses on recent advances in poly(vinyl alcohol) electrospinning and summarizes parameters of the process (voltage, distance, flow rate, and collector), solution (molecular weight and concentration), and ambient (humidity and temperature) in order to comprehend the influence on the structural, mechanical, and chemical properties of poly(vinyl alcohol)-based electrospun matrices. The importance of poly(vinyl alcohol) electrospinning in biomedical applications is emphasized by exploring a literature review on biomedical applications including wound dressings, drug delivery, tissue engineering, and biosensors. The study also highlights a new promising area of particles formation through the electrospraying of poly(vinyl alcohol). The limitations and advantages of working with different poly(vinyl alcohol) matrices are reviewed, and some recommendations for the future are made to advance this field of study.
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Affiliation(s)
- Gizem Ceylan Türkoğlu
- Department of Textile Engineering, Dokuz Eylul University, İzmir 35397, Turkey;
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, F-59000 Lille, France; (N.K.); (E.M.)
| | - Niloufar Khomarloo
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, F-59000 Lille, France; (N.K.); (E.M.)
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, Junia, F-59000 Lille, France
| | - Elham Mohsenzadeh
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, F-59000 Lille, France; (N.K.); (E.M.)
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, Junia, F-59000 Lille, France
| | - Dilyana Nikolaeva Gospodinova
- Faculty of Electrical Engineering, Department of Electrical Apparatus, Technical University of Sofia, 1156 Sofia, Bulgaria;
| | - Margarita Neznakomova
- Faculty of Industrial Technology, Department of Material Science and Technology of Materials, Technical University of Sofia, 1000 Sofia, Bulgaria;
| | - Fabien Salaün
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, F-59000 Lille, France; (N.K.); (E.M.)
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3
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Ferro VM, Silva BC, Macedo DF, Fernandes NF, Silva AP. TCP Doped with Metal Ions Reinforced with Tetragonal and Cubic Zirconia. Biomimetics (Basel) 2023; 8:599. [PMID: 38132538 PMCID: PMC10742230 DOI: 10.3390/biomimetics8080599] [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: 10/17/2023] [Revised: 11/19/2023] [Accepted: 12/07/2023] [Indexed: 12/23/2023] Open
Abstract
Ceramic biocomposites based on bioactive tricalcium phosphate doped with metal ions are a strategy for obtaining good biomimetics for human bone composition. Manufacturing with PMMA porogen also induces bone-like porosity morphology. The poor strength of tricalcium phosphate can be overcomed by designing ceramic composites reinforced with tetragonal and cubic zirconia. In this work, five different bioceramic composites were manufactured without and with induced porosity and their physical, mechanical, microstructural, and biological properties were studied. With the addition of tetragonal and cubic zirconia, an improvement in strength of 22% and 55%, respectively, was obtained, corresponding to up to 20.7 MPa. PMMA was suitable for adding porosity, up to 30%, with interconnectivity while an excellent hOB cellular viability was achieved for all biocomposites.
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Affiliation(s)
- Vanessa M. Ferro
- C-MAST—Centre for Mechanical and Aerospace Science and Technologies, Universidade da Beira Interior, Rua Marquês d’Ávila e Bolama, 6201-001 Covilhã, Portugal; (V.M.F.)
- CICS-UBI—Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Beatriz C. Silva
- C-MAST—Centre for Mechanical and Aerospace Science and Technologies, Universidade da Beira Interior, Rua Marquês d’Ávila e Bolama, 6201-001 Covilhã, Portugal; (V.M.F.)
| | - Duarte F. Macedo
- C-MAST—Centre for Mechanical and Aerospace Science and Technologies, Universidade da Beira Interior, Rua Marquês d’Ávila e Bolama, 6201-001 Covilhã, Portugal; (V.M.F.)
| | - Natanael F. Fernandes
- CICS-UBI—Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Abílio P. Silva
- C-MAST—Centre for Mechanical and Aerospace Science and Technologies, Universidade da Beira Interior, Rua Marquês d’Ávila e Bolama, 6201-001 Covilhã, Portugal; (V.M.F.)
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4
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Rusu AG, Niță LE, Roșca I, Croitoriu A, Ghilan A, Mititelu-Tarțău L, Grigoraș AV, Crețu BEB, Chiriac AP. Alginate-Based Hydrogels Enriched with Lavender Essential Oil: Evaluation of Physicochemical Properties, Antimicrobial Activity, and In Vivo Biocompatibility. Pharmaceutics 2023; 15:2608. [PMID: 38004586 PMCID: PMC10675056 DOI: 10.3390/pharmaceutics15112608] [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: 09/27/2023] [Revised: 10/24/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Owing to its antibacterial, anti-inflammatory, and antioxidant activities, in the last few years, lavender essential oil (LVO) has been used in medical applications as a promising approach for treating infected wounds. However, the practical applicability of LVO is limited by its high volatility and storage stability. This study aimed to develop a novel hybrid hydrogel by combining phytic acid (PA)-crosslinked sodium alginate (SA) and poly(itaconic anhydride-co-3,9-divinyl-2,4,8,10-tetraoxaspiro[5.5] undecane (PITAU) and evaluate its potential effectiveness as an antibacterial wound dressing after incorporating LVO. The influence of the mass ratio between SA and PITAU on the properties and stability of hydrogels was investigated. After LVO loading, the effect of oil addition to hydrogels on their functional properties and associated structural changes was studied. FTIR analysis revealed that hydrogen bonding is the primary interaction mechanism between components in the hybrid hydrogels. The morphology was analyzed using SEM, evidencing a porosity dependent on the ratio between SA and PITAU, while LVO droplets were well dispersed in the polymer blend. The release of LVO from the hydrogels was determined using UV-VIS spectroscopy, indicating a sustained release over time, independent of the LVO concentration. In addition, the hybrid hydrogels were tested for their antioxidant properties and antimicrobial activity against Gram-positive and Gram-negative bacteria. Very good antimicrobial activity was obtained in the case of sample SA_PITAU3+LVO10% against S. aureus and C. albicans. Moreover, in vivo tests showed an increased antioxidant effect of the SA_PITAU3+LVO10% hydrogel compared to the oil-free scaffold that may aid in accelerating the healing process of wounds.
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Affiliation(s)
- Alina Gabriela Rusu
- Natural Polymers, Bioactive and Biocompatible Materials Department, “Petru Poni” Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (L.E.N.); (A.C.); (A.G.); (B.-E.-B.C.); (A.P.C.)
| | - Loredana Elena Niță
- Natural Polymers, Bioactive and Biocompatible Materials Department, “Petru Poni” Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (L.E.N.); (A.C.); (A.G.); (B.-E.-B.C.); (A.P.C.)
| | - Irina Roșca
- Center of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania;
| | - Alexandra Croitoriu
- Natural Polymers, Bioactive and Biocompatible Materials Department, “Petru Poni” Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (L.E.N.); (A.C.); (A.G.); (B.-E.-B.C.); (A.P.C.)
| | - Alina Ghilan
- Natural Polymers, Bioactive and Biocompatible Materials Department, “Petru Poni” Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (L.E.N.); (A.C.); (A.G.); (B.-E.-B.C.); (A.P.C.)
| | - Liliana Mititelu-Tarțău
- Department of Pharmacology, Clinical Pharmacology and Algesiology, “Grigore T. Popa” University of Medicine and Pharmacy, Universitǎţii Street 16, 700115 Iasi, Romania;
| | - Aurica Valentin Grigoraș
- Stejarul Research Centre for Biological Sciences, National Institute of Research and Development for Biological Sciences, Alexandru cel Bun Street, 6, 610004 Piatra Neamț, Romania;
| | - Bianca-Elena-Beatrice Crețu
- Natural Polymers, Bioactive and Biocompatible Materials Department, “Petru Poni” Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (L.E.N.); (A.C.); (A.G.); (B.-E.-B.C.); (A.P.C.)
| | - Aurica P. Chiriac
- Natural Polymers, Bioactive and Biocompatible Materials Department, “Petru Poni” Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (L.E.N.); (A.C.); (A.G.); (B.-E.-B.C.); (A.P.C.)
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5
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Liu Y, Huang S, Liang S, Lin P, Lai X, Lan X, Wang H, Tang Y, Gao B. Phase Change Material-Embedded Multifunctional Janus Nanofiber Dressing with Directional Moisture Transport, Controlled Release of Anti-Inflammatory Drugs, and Synergistic Antibacterial Properties. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37909419 DOI: 10.1021/acsami.3c11903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Wound healing is a systematic and complex process that involves various intrinsic and extrinsic factors affecting different stages of wound repair. Therefore, multifunctional wound dressings that can modulate these factors to promote wound healing are in high demand. In this work, a multifunctional Janus electrospinning nanofiber dressing with antibacterial and anti-inflammatory properties, controlled release of drugs, and unidirectional water transport was prepared by depositing coaxial nanofibers on a hydrophilic poly(ε-caprolactone)@polydopamine-ε-polyl-lysine (PCL@PDA-ε-PL) nanofiber membrane. The coaxial nanofiber was loaded with the phase change material lauric acid (LA) in the shell layer and anti-inflammatory ibuprofen (IBU) in the core layer. Among them, LA with a melting point of 43 °C served as a phase change material to control the release of IBU. The phase transition of LA was induced by near-infrared (NIR) irradiation that triggered the photothermal properties of PDA. Moreover, the Janus nanofiber dressing exhibited synergistic antimicrobial properties for Escherichia coli and Staphylococcus aureus due to the photothermal properties of PDA and antibacterial ε-PL. The prepared Janus nanofiber dressing also exhibited anti-inflammatory activity and biocompatibility. In addition, the Janus nanofiber dressing had asymmetric wettability that enabled directional water transport, thereby draining excessive wound exudate. The water vapor transmission test indicated that the Janus nanofiber dressing had good air permeability. Finally, skin wound healing evaluation in rats confirmed its efficacy in promoting wound healing. Therefore, this strategy of designing and manufacturing a multifunctional Janus nanofiber dressing had great potential in wound healing applications.
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Affiliation(s)
- Yurong Liu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Shunfen Huang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510632, China
| | - Shiyi Liang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Peiran Lin
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiangjie Lai
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Xingzi Lan
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment; School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Han Wang
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment; School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yadong Tang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Botao Gao
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510632, China
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6
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Zahra FT, Quick Q, Mu R. Electrospun PVA Fibers for Drug Delivery: A Review. Polymers (Basel) 2023; 15:3837. [PMID: 37765691 PMCID: PMC10536586 DOI: 10.3390/polym15183837] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/14/2023] [Accepted: 09/16/2023] [Indexed: 09/29/2023] Open
Abstract
Innovation in biomedical science is always a field of interest for researchers. Drug delivery, being one of the key areas of biomedical science, has gained considerable significance. The utilization of simple yet effective techniques such as electrospinning has undergone significant development in the field of drug delivery. Various polymers such as PEG (polyethylene glycol), PLGA (Poly(lactic-co-glycolic acid)), PLA(Polylactic acid), and PCA (poly(methacrylate citric acid)) have been utilized to prepare electrospinning-based drug delivery systems (DDSs). Polyvinyl alcohol (PVA) has recently gained attention because of its biocompatibility, biodegradability, non-toxicity, and ideal mechanical properties as these are the key factors in developing DDSs. Moreover, it has shown promising results in developing DDSs individually and when combined with natural and synthetic polymers such as chitosan and polycaprolactone (PCL). Considering the outstanding properties of PVA, the aim of this review paper was therefore to summarize these recent advances by highlighting the potential of electrospun PVA for drug delivery systems.
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Affiliation(s)
- Fatima T. Zahra
- TIGER Institute, Tennessee State University, Nashville, TN 37209, USA
| | - Quincy Quick
- Department of Biological Sciences, Tennessee State University, Nashville, TN 37209, USA
| | - Richard Mu
- TIGER Institute, Tennessee State University, Nashville, TN 37209, USA
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7
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Agrawal G, Aswath S, Laha A, Ramakrishna S. Electrospun Nanofiber-Based Drug Carrier to Manage Inflammation. Adv Wound Care (New Rochelle) 2023; 12:529-543. [PMID: 36680757 DOI: 10.1089/wound.2022.0043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Significance: Nonsteroidal anti-inflammatory drugs (NSAIDs) are one of the most widely prescribed drugs to treat inflammation and related ailments. In recent years, loading these drugs onto nanodevices like nanoparticles, nanofibers, etc. as a drug delivery system has gained momentum due to its desirable properties and advantages. The purpose of this review is to examine the existing research on the potential and novel use of nanofiber-assisted delivery of NSAIDs. Recent Advances: Electrospun nanofibers have recently garnered considerable attention from researchers in a variety of sectors. They have proved to be promising vehicles for drug delivery systems because of their exceptional and favorable features like prolonged drug release, controllable porosity, and high surface area. In this article, various polymers and even combinations of polymers loaded with single or multiple drugs were analyzed to achieve the desired drug release rates (burst, sustained, and biphasic) from the electrospun nanofibers. Critical Issues: The administration of these medications can induce major adverse effects, causing patients discomfort. Thus, encapsulating these drugs within electrospun nanofibers helps to reduce the severity of side effects while also providing additional benefits such as targeted and controlled drug release, reduced toxicity, and long-lasting effects of the drug with lower amounts of administration. Future Directions: This review covers previous research on the delivery of NSAIDs using electrospun nanofibers as the matrix. Also, this study intends to aid in the development of enhanced drug delivery systems for the treatment of inflammation and related issues.
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Affiliation(s)
- Gaurav Agrawal
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Udupi, India
| | - Surabhi Aswath
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Udupi, India
| | - Anindita Laha
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Udupi, India
- Department of Chemical Engineering, Calcutta Institute of Technology, Howrah, India
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore, Singapore
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Xing J, Zhang M, Liu X, Wang C, Xu N, Xing D. Multi-material electrospinning: from methods to biomedical applications. Mater Today Bio 2023; 21:100710. [PMID: 37545561 PMCID: PMC10401296 DOI: 10.1016/j.mtbio.2023.100710] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 06/03/2023] [Accepted: 06/16/2023] [Indexed: 08/08/2023] Open
Abstract
Electrospinning as a versatile, simple, and cost-effective method to engineer a variety of micro or nanofibrous materials, has contributed to significant developments in the biomedical field. However, the traditional electrospinning of single material only can produce homogeneous fibrous assemblies with limited functional properties, which oftentimes fails to meet the ever-increasing requirements of biomedical applications. Thus, multi-material electrospinning referring to engineering two or more kinds of materials, has been recently developed to enable the fabrication of diversified complex fibrous structures with advanced performance for greatly promoting biomedical development. This review firstly gives an overview of multi-material electrospinning modalities, with a highlight on their features and accessibility for constructing different complex fibrous structures. A perspective of how multi-material electrospinning opens up new opportunities for specific biomedical applications, i.e., tissue engineering and drug delivery, is also offered.
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Affiliation(s)
- Jiyao Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Miao Zhang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Xinlin Liu
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Chao Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Nannan Xu
- School of Computer Science and Technology, Ocean University of China, Qingdao, 266000, China
| | - Dongming Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
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9
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Akturk A, Kasikci FN, Dikmetas DN, Karbancioglu-Guler F, Erol-Taygun M. Hypericum perforatum Oil and Vitamin A Palmitate-Loaded Gelatin Nanofibers Cross-Linked by Tannic Acid as Wound Dressings. ACS OMEGA 2023; 8:24023-24031. [PMID: 37426268 PMCID: PMC10324379 DOI: 10.1021/acsomega.3c02967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 06/13/2023] [Indexed: 07/11/2023]
Abstract
Recent studies in wound dressing applications offer new therapies to promote the wound healing process. The main strategy of this study is to combine the traditional perspective of using medicinal oils with polymeric scaffolds manufactured by an engineering approach to fabricate a potential tissue engineering product that provides both new tissue formation and wound healing. Thus, Hypericum perforatum oil (HPO) and vitamin A palmitate (VAP) incorporated gelatin (Gt) nanofibrous scaffolds were successfully prepared by the electrospinning method. Tannic acid (TA) was used as the cross-linking agent. The amounts of VAP and HPO loaded in the base Gt solution [15% w/v in 4:6 v/v acetic acid/deionized water] were 5 and 50 wt % (based on the weight of Gt), respectively. The obtained scaffolds were studied regarding their microstructure, chemical structure, thermal stability, antibacterial activity, in vitro release study, and cellular proliferation assay. In the light of these studies, it was determined that VAP and HPO were incorporated successfully in Gt nanofibers cross-linked with TA. Release kinetic tests confirmed that the patterns of TA and VAP release were consistent with the Higuchi model, whereas HPO release was consistent with the first-order kinetic model. In addition, this membrane was biocompatible with L929 fibroblast cells and had antibacterial activity and thermal stability. This preliminary study suggests potential applicability of the proposed dressing to treat skin wounds in clinics.
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Affiliation(s)
- Aysen Akturk
- Department
of Chemical Engineering, Istanbul Technical
University, Maslak, Istanbul 34449, Turkey
| | - Funda Nur Kasikci
- Department
of Chemical Engineering, Istanbul Technical
University, Maslak, Istanbul 34449, Turkey
| | - Dilara Nur Dikmetas
- Department
of Food Engineering, Istanbul Technical
University, Maslak, Istanbul 34449, Turkey
| | | | - Melek Erol-Taygun
- Department
of Chemical Engineering, Istanbul Technical
University, Maslak, Istanbul 34449, Turkey
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10
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Zulkifli MZA, Nordin D, Shaari N, Kamarudin SK. Overview of Electrospinning for Tissue Engineering Applications. Polymers (Basel) 2023; 15:polym15112418. [PMID: 37299217 DOI: 10.3390/polym15112418] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/24/2023] [Accepted: 05/15/2023] [Indexed: 06/12/2023] Open
Abstract
Tissue engineering (TE) is an emerging field of study that incorporates the principles of biology, medicine, and engineering for designing biological substitutes to maintain, restore, or improve tissue functions with the goal of avoiding organ transplantation. Amongst the various scaffolding techniques, electrospinning is one of the most widely used techniques to synthesise a nanofibrous scaffold. Electrospinning as a potential tissue engineering scaffolding technique has attracted a great deal of interest and has been widely discussed in many studies. The high surface-to-volume ratio of nanofibres, coupled with their ability to fabricate scaffolds that may mimic extracellular matrices, facilitates cell migration, proliferation, adhesion, and differentiation. These are all very desirable properties for TE applications. However, despite its widespread use and distinct advantages, electrospun scaffolds suffer from two major practical limitations: poor cell penetration and poor load-bearing applications. Furthermore, electrospun scaffolds have low mechanical strength. Several solutions have been offered by various research groups to overcome these limitations. This review provides an overview of the electrospinning techniques used to synthesise nanofibres for TE applications. In addition, we describe current research on nanofibre fabrication and characterisation, including the main limitations of electrospinning and some possible solutions to overcome these limitations.
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Affiliation(s)
- Muhammad Zikri Aiman Zulkifli
- Department of Chemical & Process Engineering, Faculty of Engineering & Build Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Darman Nordin
- Department of Chemical & Process Engineering, Faculty of Engineering & Build Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Norazuwana Shaari
- Full Cell Institute, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Siti Kartom Kamarudin
- Full Cell Institute, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
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11
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Pinto MF, Quevedo BV, Asami J, Komatsu D, Hausen MDA, Duek EADR. Electrospun Membrane Based on Poly(L-co-D,L lactic acid) and Natural Rubber Containing Copaiba Oil Designed as a Dressing with Antimicrobial Properties. Antibiotics (Basel) 2023; 12:antibiotics12050898. [PMID: 37237801 DOI: 10.3390/antibiotics12050898] [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: 03/28/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Drug delivery systems of natural antimicrobial compounds, such as copaiba oil (CO), have become relevant in the scientific community due to the recent prevalence of the public health complications related to antibiotic resistance. Electrospun devices act as an efficient drug delivery system for these bioactive compounds, reducing systemic side effects and increasing the effectiveness of the treatment. In this way, the present study aimed to evaluate the synergistic and antimicrobial effect of the direct incorporation of different concentrations of CO in a poly(L-co-D,L lactic acid) and natural rubber (NR) electrospun membrane. It was observed that CO showed bacteriostatic and antibacterial effects against S. aureus in antibiogram assays. The prevention of biofilm formation was confirmed via scanning electron microscopy. The test with crystal violet demonstrated strong bacteria inhibition in membranes with 75% CO. A decrease in hydrophilicity, observed in the swelling test, presented that the addition of CO promotes a safe environment for the recovery of injured tissue while acting as an antimicrobial agent. In this way, the study showed strong bacteriostatic effects of the CO incorporation in combination with electrospun membranes, a suitable feature desired in wound dressings in order to promote a physical barrier with prophylactic antimicrobial properties to avoid infections during tissue healing.
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Affiliation(s)
- Marcelo Formigoni Pinto
- Mechanical Engineering Faculty (FEM), State University of Campinas (UNICAMP), Campinas 13083-860, São Paulo, Brazil
| | - Bruna V Quevedo
- Post-Graduation Program in Materials Sciences (PPGCM), Federal University of São Carlos (UFSCar), Sorocaba 18052-780, São Paulo, Brazil
- Laboratory of Biomaterials, Faculty of Medical Sciences and Health (FCMS), Pontifical Catholic University of São Paulo (PUC-SP), Sorocaba 18030-070, São Paulo, Brazil
| | - Jessica Asami
- Mechanical Engineering Faculty (FEM), State University of Campinas (UNICAMP), Campinas 13083-860, São Paulo, Brazil
- Laboratory of Biomaterials, Faculty of Medical Sciences and Health (FCMS), Pontifical Catholic University of São Paulo (PUC-SP), Sorocaba 18030-070, São Paulo, Brazil
| | - Daniel Komatsu
- Laboratory of Biomaterials, Faculty of Medical Sciences and Health (FCMS), Pontifical Catholic University of São Paulo (PUC-SP), Sorocaba 18030-070, São Paulo, Brazil
| | - Moema de Alencar Hausen
- Laboratory of Biomaterials, Faculty of Medical Sciences and Health (FCMS), Pontifical Catholic University of São Paulo (PUC-SP), Sorocaba 18030-070, São Paulo, Brazil
- Post-Graduation Program of Biomaterials and Regenerative Medicine, Surgery Department, FCMS, PUC-São Paulo, Sorocaba 18030-070, São Paulo, Brazil
| | - Eliana Aparecida de Rezende Duek
- Mechanical Engineering Faculty (FEM), State University of Campinas (UNICAMP), Campinas 13083-860, São Paulo, Brazil
- Post-Graduation Program in Materials Sciences (PPGCM), Federal University of São Carlos (UFSCar), Sorocaba 18052-780, São Paulo, Brazil
- Laboratory of Biomaterials, Faculty of Medical Sciences and Health (FCMS), Pontifical Catholic University of São Paulo (PUC-SP), Sorocaba 18030-070, São Paulo, Brazil
- Post-Graduation Program of Biomaterials and Regenerative Medicine, Surgery Department, FCMS, PUC-São Paulo, Sorocaba 18030-070, São Paulo, Brazil
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12
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Zhong G, Qiu M, Zhang J, Jiang F, Yue X, Huang C, Zhao S, Zeng R, Zhang C, Qu Y. Fabrication and characterization of PVA@PLA electrospinning nanofibers embedded with Bletilla striata polysaccharide and Rosmarinic acid to promote wound healing. Int J Biol Macromol 2023; 234:123693. [PMID: 36806778 DOI: 10.1016/j.ijbiomac.2023.123693] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/03/2023] [Accepted: 02/11/2023] [Indexed: 02/19/2023]
Abstract
In this study, a novel nanofiber material with Polylactic acid (PLA), natural plant polysaccharides-Bletilla striata polysaccharide (BSP) and Rosmarinic acid (RA) as the raw materials to facilitate wound healing was well prepared through coaxial electrospinning. The morphology of RA-BSP-PVA@PLA nanofibers was characterized through scanning electron microscopy (SEM), and the successful formation of core-shell structure was verified under confocal laser microscopy (CLSM) and Fourier transform infrared spectroscopy (FTIR). RA-BSP-PVA@PLA exhibited suitable air permeability for wound healing, as indicated by the result of the water vapor permeability (WVTR) study. The results of tension test results indicated the RA-BSP-PVA@PLA nanofiber exhibited excellent flexibility and better accommodates wounds. Moreover, the biocompatibility of RA-BSP-PVA@PLA was examined through MTT assay. Lastly, RA-BSP-PVA@PLA nanofibers can induce wound tissue growth, as verified by the rat dorsal skin wound models and tissue sections. Furthermore, RA-BSP-PVA@PLA can facilitate the proliferation and transformation of early wound macrophages, and down-regulate MPO+ expression of on the wound, thus facilitating wound healing, as confirmed by the result of immunohistochemical. Thus, RA-BSP-PVA@PLA nanofibers show great potential as wound dressings in wound healing.
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Affiliation(s)
- Guofeng Zhong
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Mengyu Qiu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Junbo Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Fuchen Jiang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xuan Yue
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Chi Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Shiyi Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Rui Zeng
- College of Pharmacy, Southwest Minzu University, Chengdu 610041, China
| | - Chen Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yan Qu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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13
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Graça MFP, Melo BL, Lima-Sousa R, Ferreira P, Moreira AF, Correia IJ. Reduced graphene oxide-enriched chitosan hydrogel/cellulose acetate-based nanofibers application in mild hyperthermia and skin regeneration. Int J Biol Macromol 2023; 229:224-235. [PMID: 36586651 DOI: 10.1016/j.ijbiomac.2022.12.291] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/19/2022] [Accepted: 12/25/2022] [Indexed: 12/31/2022]
Abstract
Asymmetric wound dressings have captured researchers' attention due to their ability to reproduce the structural and functional properties of the skin layers. Furthermore, recent studies also report the benefits of using near-infrared (NIR) radiation-activated photothermal therapies in treating infections and chronic wounds. Herein, a chitosan (CS) and reduced graphene oxide (rGO) hydrogel (CS_rGO) was combined with a polycaprolactone (PCL) and cellulose acetate (CA) electrospun membrane (PCL_CA) to create a new NIR-responsive asymmetric wound dressing. The rGO incorporation in the hydrogel increased the NIR absorption capacity and allowed a mild hyperthermy effect, a temperature increase of 12.4 °C when irradiated with a NIR laser. Moreover, the PCL_CA membrane presented a low porosity and hydrophobic nature, whereas the CS_rGO hydrogel showed the ability to provide a moist environment, prevent exudate accumulation and allow gaseous exchanges. Furthermore, the in vitro data demonstrate the capacity of the asymmetric structure to act as a barrier against bacteria penetration as well as mediating a NIR-triggered antibacterial effect. Additionally, human fibroblasts were able to adhere and proliferate in the CS_rGO hydrogel, even under NIR laser irradiation, presenting cellular viabilities superior to 90 %. Altogether, our data support the application of the NIR-responsive asymmetric wound dressings for skin regeneration.
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Affiliation(s)
- Mariana F P Graça
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Bruna L Melo
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Rita Lima-Sousa
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Paula Ferreira
- CIEPQPF - Departamento de Engenharia Química, Universidade de Coimbra, Rua Silvio Lima, 3030-790 Coimbra, Portugal; Instituto Superior de Engenharia de Coimbra, Instituto Politécnico de Coimbra, Rua Pedro Nunes, 3030-199 Coimbra, Portugal
| | - André F Moreira
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; CPIRN-UDI/IPG - Center of Potential and Innovation in Natural Resources, Research Unit for Inland Development, Instituto Politécnico da Guarda, Avenida Dr. Francisco de Sá Carneiro, 6300-559 Guarda, Portugal.
| | - Ilídio J Correia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; CIEPQPF - Departamento de Engenharia Química, Universidade de Coimbra, Rua Silvio Lima, 3030-790 Coimbra, Portugal.
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14
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Marques MP, Mendonça L, Neves BG, Varela C, Oliveira P, Cabral C. Exploring Iberian Peninsula Lamiaceae as Potential Therapeutic Approaches in Wound Healing. Pharmaceuticals (Basel) 2023; 16:ph16030347. [PMID: 36986446 PMCID: PMC10056130 DOI: 10.3390/ph16030347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 03/03/2023] Open
Abstract
Skin tissue has a crucial role in protecting the human body from external harmful agents, preventing wounds that frequently demand proper healing approaches. The ethnobotanical knowledge of specific regions with further investigation on their medicinal plants has been paramount to create new and effective therapeutical agents, including for dermatological purposes. This review attempts, for the first time, to investigate the traditional applications of Lamiaceae medicinal plants that are already used by local communities in the Iberian Peninsula in wound healing. Henceforward, Iberian ethnobotanical surveys were reviewed, and the information about the traditional wound healing practices of Lamiaceae was comprehensively summarized. Afterwards, the scientific validation of each Lamiaceae species was exhaustively checked. From this, eight out of twenty-nine Lamiaceae medicinal plants were highlighted by their wound-related pharmacological evidence and are in-depth presented in this review. We suggest that future studies should focus on the isolation and identification of the active molecules of these Lamiaceae, followed by robust clinical trials that may confirm the security and effectiveness of such natural-based approaches. This will in turn pave the way for more reliable wound healing treatments.
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Affiliation(s)
- Mário P. Marques
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Clinic Academic Center of Coimbra (CACC), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
| | - Laura Mendonça
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Clinic Academic Center of Coimbra (CACC), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Beatriz G. Neves
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Clinic Academic Center of Coimbra (CACC), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Carla Varela
- Chemical Process Engineering and Forest Products (CIEPQPF), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Paulo Oliveira
- Centro de Neurociências e Biologia Celular (CNC), Center for Innovative Biomedicine and Biotechnology (CIBB), 3000-548 Coimbra, Portugal
| | - Célia Cabral
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Clinic Academic Center of Coimbra (CACC), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3000-548 Coimbra, Portugal
- Correspondence:
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15
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Akturk A. Enrichment of Cellulose Acetate Nanofibrous Scaffolds with Retinyl Palmitate and Clove Essential Oil for Wound Healing Applications. ACS OMEGA 2023; 8:5553-5560. [PMID: 36816664 PMCID: PMC9933185 DOI: 10.1021/acsomega.2c06881] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
The use of biocompatible materials and fabrication methods is of particular importance in the development of wound dressings. Cellulose acetate (CA) has excellent properties for wound dressing applications, but it is insufficient for the wound healing process due to its lack of bioactive and antibacterial properties. In this study, CA was electrospun with retinyl palmitate (RP) and clove essential oil (CLV) to fabricate a novel antibacterial and antioxidant biomaterial. The effects of RP and CLV incorporation on the surface morphology, fiber diameter, antioxidant activity, antibacterial activity, cell viability, and release behavior of the fabricated CA mats were investigated. In light of these studies, it was determined that the nanofiber mat, fabricated with a 15% w/v CA polymer concentration, a 1% w/w RP ratio, and a 5% w/w CLV ratio, was biocompatible with L929 fibroblast cells with antibacterial and antioxidant properties. Overall, results showed that this nanofiber offers promise for use as a wound dressing.
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16
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Pilot-Plant-Scale Extraction of Antioxidant Compounds from Lavender: Experimental Data and Methodology for an Economic Assessment. Processes (Basel) 2022. [DOI: 10.3390/pr10122708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The techno-economic feasibility of lavender essential oil supercritical CO2 extraction was studied. The process was scaled up to a pilot plant, and the extraction yield, composition, and antioxidant potential of the extracts were evaluated at 60 °C and 180 bar or 250 bar, achieving a maximum yield of 6.9% and a percentage inhibition of the extracts of more than 80%. These results drove the development of a business plan for three scenarios corresponding to different extraction volumes (20, 50, and 100 L) and annual production. The SWOT matrix showed that this is a promising business idea. The COM was calculated and an investment analysis was performed. The profitability of this process was demonstrated by means of a financial analysis for 8 years, considering a selling price of 1.38 EUR/g for the extract from the 20 L plant and 0.9 EUR/g for industrial-scale plants, supported by the price curve. The sensitivity analysis showed that the price of the equipment was the factor that could most influence the robustness of the project and the business strategy, and the financial ratios evaluation resulted in a ROE value above 57% in all cases, indicating the economic attractiveness of the process.
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17
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Doustdar F, Ghorbani M. ZIF-8 enriched electrospun ethyl cellulose/polyvinylpyrrolidone scaffolds: The key role of polyvinylpyrrolidone molecular weight. Carbohydr Polym 2022; 291:119620. [DOI: 10.1016/j.carbpol.2022.119620] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 02/06/2023]
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18
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Rawooth M, Habibullah SK, Qureshi D, Bharti D, Pal A, Mohanty B, Jarzębski M, Smułek W, Pal K. Effect of Tamarind Gum on the Properties of Phase-Separated Poly(vinyl alcohol) Films. Polymers (Basel) 2022; 14:polym14142793. [PMID: 35890569 PMCID: PMC9318724 DOI: 10.3390/polym14142793] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 11/30/2022] Open
Abstract
The current study aims to evaluate the effect of tamarind gum (TG) on the optical, mechanical, and drug release potential of poly(vinyl alcohol) (PVA)-based films. This involves preparing PVA-TG composite films with different concentrations of TG through a simple solvent casting method. The addition of TG has enhanced the phase separation and aggregation of PVA within the films, and it becomes greater with the increase in TG concentration. Brightfield and polarized light micrographs have revealed that aggregation is favored by forming crystalline domains at the PVA-TG interface. The interconnected network of PVA-TG aggregates influenced the swelling and drying properties of the films. Using Peleg’s analysis, the mechanical behavior of films was determined by their stress relaxation profiles. The addition of TG has made no significant changes to the firmness and viscoelastic properties of films. However, long-durational relaxation times indicated that the interconnected network might break down in films with higher TG concentration, suggesting their brittleness. The controlled release of ciprofloxacin in HCl solution (0.5% (w/v)) appears to decrease with the increase in TG concentration. In fact, TG has inversely affected the impedance and altered the ionic conductivity within the films. This seems to have directly influenced the drug release from the films as the mechanism was found to be non-Fickian diffusion (based on Korsmeyer–Peepas and Peppas–Sahlin kinetic models). The antimicrobial study using Escherichia coli was carried out to evaluate the activity of the drug-loaded films. The study proves that TG can modulate the properties of PVA films and has the potential to fine-tune the controlled release of drugs from composite films.
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Affiliation(s)
- Madhusmita Rawooth
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, Odisha, India; (M.R.); (D.Q.); (D.B.)
| | - SK Habibullah
- Department of Pharmaceutics, Institute of Pharmacy and Technology, Salipur, Cuttack 754202, Odisha, India; (S.H.); (A.P.)
| | - Dilshad Qureshi
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, Odisha, India; (M.R.); (D.Q.); (D.B.)
| | - Deepti Bharti
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, Odisha, India; (M.R.); (D.Q.); (D.B.)
| | - Ankit Pal
- Department of Pharmaceutics, Institute of Pharmacy and Technology, Salipur, Cuttack 754202, Odisha, India; (S.H.); (A.P.)
| | - Biswaranjan Mohanty
- Department of Pharmaceutics, Institute of Pharmacy and Technology, Salipur, Cuttack 754202, Odisha, India; (S.H.); (A.P.)
- Correspondence: (B.M.); (M.J.); (K.P.)
| | - Maciej Jarzębski
- Department of Physics and Biophysics, Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 38/42, 60-637 Poznan, Poland
- Correspondence: (B.M.); (M.J.); (K.P.)
| | - Wojciech Smułek
- Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, 60-695 Poznan, Poland;
| | - Kunal Pal
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, Odisha, India; (M.R.); (D.Q.); (D.B.)
- Correspondence: (B.M.); (M.J.); (K.P.)
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19
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Rosiles-González V, Le Lagadec R, Varguez-Catzim P, Loria-Bastarrachea MI, González-Díaz A, Hernández-Núñez E, Aguilar-Vega M, González-Díaz MO. Preparation and Characterization of Strongly Sulfonated Acid Block and Random Copolymer Membranes for Acetic Acid Esterification with 2-Propanol. Polymers (Basel) 2022; 14:polym14132595. [PMID: 35808641 PMCID: PMC9269333 DOI: 10.3390/polym14132595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/15/2022] [Accepted: 06/20/2022] [Indexed: 02/07/2023] Open
Abstract
In this paper, we report the synthesis of block and random copolymers of 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS) and methyl methacrylate (MMA), with different AMPS feed ratios. These solution-processable copolymers with strongly sulfonated acid groups resulted in membranes with tunable ion exchange (IEC) and water absorption capacities. AFM images confirmed the microphase separation of PAMPS-b-PMMA-1:1 block copolymer membrane, annealed under the appropriate conditions. The resulting copolymers from the random combination of a 1:1 molar ratio of AMPS and MMA monomers are effective at enhancing the esterification conversion of acetic acid, when compared with a reaction catalyzed by PAMPS-b-PMMA block copolymers and the previously studied catalytic membranes. With the PAMPS-co-PMMA-1:1 membrane, the esterification reaction using acetic acid achieved 85% isopropyl acetate. These results are closely correlated with the increase in IEC (2.63 mmol H+g−1) and the relationship between weight loss (20.3%) and swelling degree (68%) in 2-propanol.
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Affiliation(s)
- Verónica Rosiles-González
- Laboratorio de Membranas, Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43 No. 130, Chuburná de Hidalgo, Mérida 97205, Mexico; (V.R.-G.); (P.V.-C.); (M.I.L.-B.); (M.A.-V.)
| | - Ronan Le Lagadec
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, Mexico;
| | - Paulina Varguez-Catzim
- Laboratorio de Membranas, Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43 No. 130, Chuburná de Hidalgo, Mérida 97205, Mexico; (V.R.-G.); (P.V.-C.); (M.I.L.-B.); (M.A.-V.)
| | - María I. Loria-Bastarrachea
- Laboratorio de Membranas, Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43 No. 130, Chuburná de Hidalgo, Mérida 97205, Mexico; (V.R.-G.); (P.V.-C.); (M.I.L.-B.); (M.A.-V.)
| | - Abigail González-Díaz
- Instituto Nacional de Electricidad y Energías Limpias, Reforma 113, Col. Palmira, Cuernavaca 62490, Mexico;
| | - Emanuel Hernández-Núñez
- Centro de Investigación y de Estudios Avanzados del IPN, Unidad Mérida, Mérida 97310, Mexico;
| | - Manuel Aguilar-Vega
- Laboratorio de Membranas, Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43 No. 130, Chuburná de Hidalgo, Mérida 97205, Mexico; (V.R.-G.); (P.V.-C.); (M.I.L.-B.); (M.A.-V.)
| | - María Ortencia González-Díaz
- CONACYT—Centro de Investigación Científica de Yucatán, A.C., Calle 43 No. 130, Chuburná de Hidalgo, Mérida 97205, Mexico
- Correspondence:
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20
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A Review on Electrospun Poly(amino acid) Nanofibers and Their Applications of Hemostasis and Wound Healing. Biomolecules 2022; 12:biom12060794. [PMID: 35740919 PMCID: PMC9221312 DOI: 10.3390/biom12060794] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 05/28/2022] [Accepted: 06/04/2022] [Indexed: 02/07/2023] Open
Abstract
The timely and effective control and repair of wound bleeding is a key research issue all over the world. From traditional compression hemostasis to a variety of new hemostatic methods, people have a more comprehensive understanding of the hemostatic mechanism and the structure and function of different types of wound dressings. Electrospun nanofibers stand out with nano size, high specific surface area, higher porosity, and a variety of complex structures. They are high-quality materials that can effectively promote wound hemostasis and wound healing because they can imitate the structural characteristics of the skin extracellular matrix (ECM) and support cell adhesion and angiogenesis. At the same time, combined with amino acid polymers with good biocompatibility not only has high compatibility with the human body but can also be combined with a variety of drugs to further improve the effect of wound hemostatic dressing. This paper summarizes the application of different amino acid electrospun wound dressings, analyzes the characteristics of different materials in preparation and application, and looks forward to the development of directions of poly(amino acid) electrospun dressings in hemostasis.
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21
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Shen Y, Wang X, Wang Y, Guo X, Yu K, Dong K, Guo Y, Cai C, Li B. Bilayer silk fibroin/sodium alginate scaffold promotes vascularization and advances inflammation stage in full-thickness wound. Biofabrication 2022; 14. [PMID: 35617935 DOI: 10.1088/1758-5090/ac73b7] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 05/26/2022] [Indexed: 11/11/2022]
Abstract
An ideal wound dressing for full-thickness wound regeneration should offer desirable biocompatibility, adequate mechanical properties, barrier function, and cellular regulation. Here, a bilayer scaffold resembling the hierarchical structure of human skin was developed using silk fibroin and sodium alginate. The upper membrane was prepared through casting and functioned as the epidermis, whereas the lower porous scaffold was prepared by freeze-drying and mimicked extracellular matrix structures. The membrane had nonporous structure, desirable mechanical properties, moderate hydrophilic surface, and suitable water vapor transmission rate, whereas the porous scaffold revealed 157.61 ± 41.67 µm pore size, 86.10 ± 3.60% porosity, and capability of stimulating fibroblast proliferation. The combination of the two structures reinforced the tensile strength by 5-fold and provided protection from wound dehydration. A suitable degradation rate reduced potential administration frequency. Furthermore, an in vivo rabbit full-thickness wound healing test demonstrated that the bilayer scaffold facilitated wound closure, granulation tissue formation, re-epithelialization and skin component transition towards normal skin by providing a moist wound environment, advancing the inflammation stage, and stimulating angiogenesis. Collectively, as an off-the-shelf and cell-free wound dressing with single topical administration, the bilayer scaffold is a promising wound dressing for full-thickness wound regeneration.
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Affiliation(s)
- Ying Shen
- Biomedical Material and Engineering Research Center, Wuhan University of Technology, Wuhan 430070, Wuhan, Hubei, 430070, CHINA
| | - Xinyu Wang
- Biomedical Material and Engineering Research Center, Wuhan University of Technology, Wuhan 430070, Wuhan, Hubei, 430070, CHINA
| | - Yiyu Wang
- Taizhou University, Taizhou, Taizhou, Zhejiang, 317000, CHINA
| | - Xiaodong Guo
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430300, CHINA
| | - Keda Yu
- Department of Orthopedics, Wuhan Union Hospital, Wuhan, Wuhan, Hubei, 430300, CHINA
| | - Kuo Dong
- Biomedical Material and Engineering Research Center, Wuhan University of Technology, Wuhan 430070, Wuhan, Hubei, 430070, CHINA
| | - Yajin Guo
- Biomedical Material and Engineering Research Center, Wuhan University of Technology, Wuhan 430070, Wuhan, Hubei, 430070, CHINA
| | - Cuiling Cai
- Biomedical Material and Engineering Research Center, Wuhan University of Technology, Wuhan 430070, Wuhan, Hubei, 430070, CHINA
| | - Binbin Li
- Biomedical Material and Engineering Research Center, Wuhan University of Technology, Wuhan 430070, Wuhan, Hubei, 430070, CHINA
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Electrospun Nanofiber-Based Membranes for Water Treatment. Polymers (Basel) 2022; 14:polym14102004. [PMID: 35631886 PMCID: PMC9144434 DOI: 10.3390/polym14102004] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 02/06/2023] Open
Abstract
Water purification and water desalination via membrane technology are generally deemed as reliable supplementaries for abundant potable water. Electrospun nanofiber-based membranes (ENMs), benefitting from characteristics such as a higher specific surface area, higher porosity, lower thickness, and possession of attracted broad attention, has allowed it to evolve into a promising candidate rapidly. Here, great attention is placed on the current status of ENMs with two categories according to the roles of electrospun nanofiber layers: (i) nanofiber layer serving as a selective layer, (ii) nanofiber layer serving as supporting substrate. For the nanofiber layer’s role as a selective layer, this work presents the structures and properties of conventional ENMs and mixed matrix ENMs. Fabricating parameters and adjusting approaches such as polymer and cosolvent, inorganic and organic incorporation and surface modification are demonstrated in detail. It is crucial to have a matched selective layer for nanofiber layers acting as a supporting layer. The various selective layers fabricated on the nanofiber layer are put forward in this paper. The fabrication approaches include inorganic deposition, polymer coating, and interfacial polymerization. Lastly, future perspectives and the main challenges in the field concerning the use of ENMs for water treatment are discussed. It is expected that the progress of ENMs will promote the prosperity and utilization of various industries such as water treatment, environmental protection, healthcare, and energy storage.
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Bozkaya O, Arat E, Gün Gök Z, Yiğitoğlu M, Vargel İ. Production and characterization of hybrid nanofiber wound dressing containing Centella asiatica coated silver nanoparticles by mutual electrospinning method. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111023] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Advanced drug delivery systems containing herbal components for wound healing. Int J Pharm 2022; 617:121617. [PMID: 35218900 DOI: 10.1016/j.ijpharm.2022.121617] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/12/2022] [Accepted: 02/21/2022] [Indexed: 12/18/2022]
Abstract
Management of chronic wound has an immense impact on social and economic conditions in the world. Healthcare costs, aging population, physical trauma, and comorbidities of diabetes and obesity seem to be the major factors of this increasing incidence of chronic wounds. Conditions of chronic wound could not restore functional epidermis; thus, delaying the closure of the wound opening in an expected manner. Failures in restoration of skin integrity delay healing due to changes in skin pathology, such as chronic ulceration or nonhealing. The role of different traditional medicines has been explored for use in the healing of cutaneous wounds, where several phytochemicals, such as flavonoids, alkaloids, phenolic acids, tannins are known to provide potential wound healing properties. However, the delivery of plant-based therapeutics could be improved by the novel platform of nanotechnology. Thus, the objectives of novel delivery strategies of principal bioactive from plant sources are to accelerate the wound healing process, avoid wound complications and enhance patient compliance. Therefore, the opportunities of nanotechnology-based drug delivery of natural wound healing therapeutics have been included in the present discussion with special emphasis on nanofibers, vesicular structures, nanoparticles, nanoemulsion, and nanogels.
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Hua L, Qian H, Lei T, Liu W, He X, Zhang Y, Lei P, Hu Y. Anti-tuberculosis drug delivery for tuberculous bone defects. Expert Opin Drug Deliv 2021; 18:1815-1827. [PMID: 34758697 DOI: 10.1080/17425247.2021.2005576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Traditional therapy methods for treating tuberculous bone defects have several limitations. Furthermore, systemic toxicity and disease recurrence in tuberculosis (TB) have not been effectively addressed. AREAS COVERED This review is based on references from September 1998 to September 2021 and summarizes the classification and drug-loading methods of anti-TB drugs. The application of different types of biological scaffolds loaded with anti-TB drugs as a novel drug delivery strategy for tuberculous bone defects has been deeply analyzed. Furthermore, the limitations of the existing studies are summarized. EXPERT OPINION Loading anti-TB drugs into the scaffold through various drug-loading techniques can effectively improve the efficiency of anti-TB treatment and provide an effective means of treating tuberculous bone defects. This methodology also has good application prospects and provides directions for future research.
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Affiliation(s)
- Long Hua
- Department of Orthopedics, Xiangya Hospital Central South University, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, Hunan, P. R. China.,Department of Orthopedics, The First Affiliated Hospital,Medical College of Zhejiang University, Hangzhou, P. R. China.,Department of orthopedics,The Sixth Affiliated Hospital, Xinjiang Medical University, Urumqi, P. R. China
| | - Hu Qian
- Department of Orthopedics, Xiangya Hospital Central South University, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, Hunan, P. R. China
| | - Ting Lei
- Department of Orthopedics, Xiangya Hospital Central South University, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, Hunan, P. R. China
| | - Wenbin Liu
- Department of Orthopedics, Xiangya Hospital Central South University, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, Hunan, P. R. China
| | - Xi He
- Department of Orthopedics, Xiangya Hospital Central South University, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, Hunan, P. R. China
| | - Yu Zhang
- Department of Orthopedics, Xiangya Hospital Central South University, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, Hunan, P. R. China
| | - Pengfei Lei
- Department of Orthopedics, Xiangya Hospital Central South University, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, Hunan, P. R. China.,Department of Orthopedics, The First Affiliated Hospital,Medical College of Zhejiang University, Hangzhou, P. R. China
| | - Yihe Hu
- Department of Orthopedics, Xiangya Hospital Central South University, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, Hunan, P. R. China.,Department of Orthopedics, The First Affiliated Hospital,Medical College of Zhejiang University, Hangzhou, P. R. China
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Sharma D, Saha S, Satapathy BK. Recent advances in polymer scaffolds for biomedical applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 33:342-408. [PMID: 34606739 DOI: 10.1080/09205063.2021.1989569] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The review provides insights into current advancements in electrospinning-assisted manufacturing for optimally designing biomedical devices for their prospective applications in tissue engineering, wound healing, drug delivery, sensing, and enzyme immobilization, and others. Further, the evolution of electrospinning-based hybrid biomedical devices using a combined approach of 3 D printing and/or film casting/molding, to design dimensionally stable membranes/micro-nanofibrous assemblies/patches/porous surfaces, etc. is reported. The influence of various electrospinning parameters, polymeric material, testing environment, and other allied factors on the morphological and physico-mechanical properties of electrospun (nano-/micro-fibrous) mats (EMs) and fibrous assemblies have been compiled and critically discussed. The spectrum of operational research and statistical approaches that are now being adopted for efficient optimization of electrospinning process parameters so as to obtain the desired response (physical and structural attributes) has prospectively been looked into. Further, the present review summarizes some current limitations and future perspectives for modeling architecturally novel hybrid 3 D/selectively textured structural assemblies, such as biocompatible, non-toxic, and bioresorbable mats/scaffolds/membranes/patches with apt mechanical stability, as biological substrates for various regenerative and non-regenerative therapeutic devices.
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Affiliation(s)
- Deepika Sharma
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Sampa Saha
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Bhabani K Satapathy
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
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Kumar L, Verma S, Joshi K, Utreja P, Sharma S. Nanofiber as a novel vehicle for transdermal delivery of therapeutic agents: challenges and opportunities. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2021. [DOI: 10.1186/s43094-021-00324-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Abstract
Background
Transdermal delivery of drugs is a quite challenging task for pharmaceutical scientists. The transdermal route is preferred over the oral route due to various advantages like avoidance of the first-pass effect, non-invasiveness, and high patient compliance. Therefore, it is necessary to develop an effective carrier system that enables the effective passage of the drug through the dermal barrier.
Main body of abstract
Various novel drug delivery systems are used to enhance the permeation of a variety of drugs through the skin barrier. Researchers around the globe have explored nanofibers for the transdermal delivery of various therapeutic agents. Nanofibers are designed to have a high concentration of therapeutic agents in them promoting their flux through various skin layers. Polymeric nanofibers can be explored for the loading of both hydrophilic and lipophilic drugs. Biopolymer-based nanofibers have been also explored for transdermal delivery. They are capable of controlling the release of therapeutic agents for a prolonged time.
Short conclusion
The literature presented in this review paper provides significant proof that nanofibers will have an intense impact on the transdermal delivery of different bioactive molecules in the future.
Graphic abstract
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28
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Rather AH, Wani TU, Khan RS, Pant B, Park M, Sheikh FA. Prospects of Polymeric Nanofibers Loaded with Essential Oils for Biomedical and Food-Packaging Applications. Int J Mol Sci 2021; 22:4017. [PMID: 33924640 PMCID: PMC8069027 DOI: 10.3390/ijms22084017] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/09/2021] [Accepted: 04/09/2021] [Indexed: 02/08/2023] Open
Abstract
Essential oils prevent superbug formation, which is mainly caused by the continuous use of synthetic drugs. This is a significant threat to health, the environment, and food safety. Plant extracts in the form of essential oils are good enough to destroy pests and fight bacterial infections in animals and humans. In this review article, different essential oils containing polymeric nanofibers fabricated by electrospinning are reviewed. These nanofibers containing essential oils have shown applications in biomedical applications and as food-packaging materials. This approach of delivering essential oils in nanoformulations has attracted considerable attention in the scientific community due to its low price, a considerable ratio of surface area to volume, versatility, and high yield. It is observed that the resulting nanofibers possess antimicrobial, anti-inflammatory, and antioxidant properties. Therefore, they can reduce the use of toxic synthetic drugs that are utilized in the cosmetics, medicine, and food industries. These nanofibers increase barrier properties against light, oxygen, and heat, thereby protecting and preserving the food from oxidative damage. Moreover, the nanofibers discussed are introduced with naturally derived chemical compounds in a controlled manner, which simultaneously prevents their degradation. The nanofibers loaded with different essential oils demonstrate an ability to increase the shelf-life of various food products while using them as active packaging materials.
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Affiliation(s)
- Anjum Hamid Rather
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
| | - Taha Umair Wani
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
| | - Rumysa Saleem Khan
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
| | - Bishweshwar Pant
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun 55338, Jeollabuk-do, Korea;
| | - Mira Park
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun 55338, Jeollabuk-do, Korea;
| | - Faheem A. Sheikh
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
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Lan X, Liu Y, Wang Y, Tian F, Miao X, Wang H, Tang Y. Coaxial electrospun PVA/PCL nanofibers with dual release of tea polyphenols and ε-poly (L-lysine) as antioxidant and antibacterial wound dressing materials. Int J Pharm 2021; 601:120525. [PMID: 33781878 DOI: 10.1016/j.ijpharm.2021.120525] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/16/2021] [Accepted: 03/20/2021] [Indexed: 01/09/2023]
Abstract
Preparing wound dressing with dual-delivery of antioxidant and antibacterial agents is highly desirable in clinical wound treatment. Herein, a series of coaxial nanofiber membranes loaded with antioxidant tea polyphenols (TP) in the core and antibacterial ε-poly (L-lysine) (ε-PL) in the shell layer were successfully fabricated by coaxial electrospinning. The physicochemical characterizations by transmission electron microscopy, inverted fluorescence microscopy and fourier transform infrared spectroscopy confirmed the formation of core-shell structure. The results of in vitro drug release indicated that ε-PL exhibited a fast release profile while TP released in a sustained manner, which is favorable to the achievement of quick bacteria inhibition in the initial phase as well as long-term antioxidant activity during wound healing. The antioxidant activity of coaxial nanofibers was found to be increased with the increment of TP content and incubation time. The antibacterial assays against Escherichia coli and Staphylococcus aureus demonstrated that the incorporation of ε-PL in the coaxial nanofibers led to strong antibacterial activity. Additionally, all the coaxial nanofibers possessed good cytocompatibility. Therefore, the prepared coaxial nanofibers simultaneously incorporated with ε-PL and TP are promising as potential wound dressing materials.
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Affiliation(s)
- Xingzi Lan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Yurong Liu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Yaqi Wang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Feng Tian
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaomin Miao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Han Wang
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yadong Tang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China; School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China.
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Therapy of infected wounds: overcoming clinical challenges by advanced drug delivery systems. Drug Deliv Transl Res 2021; 11:1545-1567. [PMID: 33611768 PMCID: PMC8236057 DOI: 10.1007/s13346-021-00932-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2021] [Indexed: 12/12/2022]
Abstract
In recent years, the incidence of infected wounds is steadily increasing, and so is the clinical as well as economic interest in effective therapies. These combine reduction of pathogen load in the wound with general wound management to facilitate the healing process. The success of current therapies is challenged by harsh conditions in the wound microenvironment, chronicity, and biofilm formation, thus impeding adequate concentrations of active antimicrobials at the site of infection. Inadequate dosing accuracy of systemically and topically applied antibiotics is prone to promote development of antibiotic resistance, while in the case of antiseptics, cytotoxicity is a major problem. Advanced drug delivery systems have the potential to enable the tailor-made application of antimicrobials to the side of action, resulting in an effective treatment with negligible side effects. This review provides a comprehensive overview of the current state of treatment options for the therapy of infected wounds. In this context, a special focus is set on delivery systems for antimicrobials ranging from semi-solid and liquid formulations over wound dressings to more advanced carriers such as nano-sized particulate systems, vesicular systems, electrospun fibers, and microneedles, which are discussed regarding their potential for effective therapy of wound infections. Further, established and novel models and analytical techniques for preclinical testing are introduced and a future perspective is provided. ![]()
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Lan X, Wang H, Bai J, Miao X, Lin Q, Zheng J, Ding S, Li X, Tang Y. Multidrug-loaded electrospun micro/nanofibrous membranes: Fabrication strategies, release behaviors and applications in regenerative medicine. J Control Release 2021; 330:1264-1287. [PMID: 33232749 DOI: 10.1016/j.jconrel.2020.11.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/18/2020] [Accepted: 11/18/2020] [Indexed: 01/02/2023]
Abstract
Electrospun micro/nanofibrous membranes (EFMs) have been widely investigated as local drug delivery systems. Multiple drugs can be simultaneously incorporated into one EFM to create synergistic effects, reduce side effects, and play their respective roles in the complex physiological processes of tissue regeneration and postoperative adhesion prevention. Due to the versatile electrospinning techniques, sustained and programmed release behaviors of multiple drugs could be achieved by modulating the structure of the EFMs and the location of the drugs. In this review, various multidrug incorporation approaches based on electrospinning are overviewed. In particular, the advantages and limitations of each drug incorporation technique, the methods to control drug release and the effect of one drug release on another are discussed. Then the applications of multidrug-loaded EFMs in regenerative medicine, including wound healing, bone regeneration, vascular tissue engineering, nerve regeneration, periodontal regeneration and adhesion prevention are comprehensively reviewed. Finally, the future perspectives and challenges in the research of multidrug-loaded EFMs are discussed.
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Affiliation(s)
- Xingzi Lan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Han Wang
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Jianfu Bai
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaomin Miao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Quan Lin
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Jianpei Zheng
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Shukai Ding
- Materials Institute of Atomic and Molecular Science, ShaanXi University of Science and Technology, Xi'an 710021, China
| | - Xiaoran Li
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Yadong Tang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China; School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China.
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Graça MFP, de Melo-Diogo D, Correia IJ, Moreira AF. Electrospun Asymmetric Membranes as Promising Wound Dressings: A Review. Pharmaceutics 2021; 13:183. [PMID: 33573313 PMCID: PMC7912487 DOI: 10.3390/pharmaceutics13020183] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/11/2021] [Accepted: 01/21/2021] [Indexed: 12/28/2022] Open
Abstract
Despite all the efforts that have been done up to now, the currently available wound dressings are still unable to fully re-establish all the structural and functional properties of the native skin. To overcome this situation, researchers from the tissue engineering area have been developing new wound dressings (hydrogels, films, sponges, membranes) aiming to mimic all the features of native skin. Among them, asymmetric membranes emerged as a promising solution since they reproduce both epidermal and dermal skin layers. Wet or dry/wet phase inversion, scCO2-assisted phase inversion, and electrospinning have been the most used techniques to produce such a type of membranes. Among them, the electrospinning technique, due to its versatility, allows the development of multifunctional dressings, using natural and/or synthetic polymers, which resemble the extracellular matrix of native skin as well as address the specific requirements of each skin layer. Moreover, various therapeutic or antimicrobial agents have been loaded within nanofibers to further improve the wound healing performance of these membranes. This review article provides an overview of the application of asymmetric electrospun membranes as wound dressings displaying antibacterial activity and as delivery systems of biomolecules that act as wound healing enhancers.
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Affiliation(s)
- Mariana F. P. Graça
- CICS-UBI—Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilha, Portugal; (M.F.P.G.); (D.d.M.-D.)
| | - Duarte de Melo-Diogo
- CICS-UBI—Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilha, Portugal; (M.F.P.G.); (D.d.M.-D.)
| | - Ilídio J. Correia
- CICS-UBI—Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilha, Portugal; (M.F.P.G.); (D.d.M.-D.)
- CIEPQPF—Departamento de Engenharia Química, Universidade de Coimbra, Rua Silvio Lima, 3030-790 Coimbra, Portugal
| | - André F. Moreira
- CICS-UBI—Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilha, Portugal; (M.F.P.G.); (D.d.M.-D.)
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Li B, Xia X, Chen J, Xia D, Xu R, Zou X, Wang H, Liang C. Paclitaxel-loaded lignin particle encapsulated into electrospun PVA/PVP composite nanofiber for effective cervical cancer cell inhibition. NANOTECHNOLOGY 2021; 32:015101. [PMID: 33043894 DOI: 10.1088/1361-6528/abb55a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Electrospun composite nanofibrous scaffolds have been regarded as a potential carrier for local drug delivery to prevent tumor recurrence. Herein, a model drug (paclitaxel) was creatively loaded into lignin nanoparticles (PLNPs) and then encapsulated into the polymer of poly (vinyl alcohol)/polyvinyl pyrrolidone which has been fabricated into a composite nanofibrous membrane (PVA/PVP-PLNPs) for use as a drug carrier using the electrospinning technique. The fabricated PVA/PVP-PLNPs membranes exhibited good particle distribution, mechanical properties, thermal stability and biocompatibility. In vitro experiments showed that combining lignin nanoparticles by electrospinning not only improved the drug release profile, but also enhanced the hydrophilicity of nanofibrous membranes which was beneficial to cell adhesion and proliferation. Cellular experiments demonstrated that PVA/PVP-2%PLNPs membrane showed good cell inhibition ability, and the cell survival rate was only 21% at day 7. It indicates that the as-prepared PVA/PVP-PLNPs composite nanofibers are promising candidates for local anticancer therapy.
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Affiliation(s)
- Baoe Li
- School of Materials Science and Engineering, Hebei University of Technology; Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Tianjin 300130, People's Republic of China
| | - Xiaomei Xia
- School of Materials Science and Engineering, Hebei University of Technology; Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Tianjin 300130, People's Republic of China
| | - Jiatian Chen
- School of Materials Science and Engineering, Hebei University of Technology; Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Tianjin 300130, People's Republic of China
| | - Dan Xia
- School of Materials Science and Engineering, Hebei University of Technology; Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Tianjin 300130, People's Republic of China
| | - Ruodan Xu
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, People's Republic of China
| | - Xianrui Zou
- School of Materials Science and Engineering, Hebei University of Technology; Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Tianjin 300130, People's Republic of China
| | - Hongshui Wang
- School of Materials Science and Engineering, Hebei University of Technology; Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Tianjin 300130, People's Republic of China
| | - Chunyong Liang
- School of Materials Science and Engineering, Hebei University of Technology; Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Tianjin 300130, People's Republic of China
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Antibacterial poly (ε-caprolactone) fibrous membranes filled with reduced graphene oxide-silver. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125186] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Huang WD, Xu X, Wang HL, Huang JX, Zuo XH, Lu XJ, Liu XL, Yu DG. Electrosprayed Ultra-Thin Coating of Ethyl Cellulose on Drug Nanoparticles for Improved Sustained Release. NANOMATERIALS 2020; 10:nano10091758. [PMID: 32899956 PMCID: PMC7557748 DOI: 10.3390/nano10091758] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 12/18/2022]
Abstract
In nanopharmaceutics, polymeric coating is a popular strategy for modifying the drug release kinetics and, thus, new methods for implementing the nanocoating processes are highly desired. In the present study, a modified coaxial electrospraying process was developed to formulate an ultra-thin layer of ethyl cellulose (EC) on a medicated composite core consisting of tamoxifen citrate (TAM) and EC. A traditional single-fluid blending electrospraying and its monolithic EC-TAM nanoparticles (NPs) were exploited to compare. The modified coaxial processes were demonstrated to be more continuous and robust. The created NPs with EC coating had a higher quality than the monolithic ones in terms of the shape, surface smoothness, and the uniform size distribution, as verified by the SEM and TEM results. XRD patterns suggested that TAM presented in all the NPs in an amorphous state thanks to the fine compatibility between EC and TAM, as indicated by the attenuated total reflection (ATR)-FTIR spectra. In vitro dissolution tests demonstrated that the NPs with EC coating required a time period of 7.58 h, 12.79 h, and 28.74 h for an accumulative release of 30%, 50%, and 90% of the loaded drug, respectively. The protocols reported here open a new way for developing novel medicated nanoparticles with functional coating.
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Affiliation(s)
- Wei-Dong Huang
- School of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi 435003, China; (W.-D.H.); (X.-H.Z.)
- Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi 435003, China; (H.-L.W.); (J.-X.H.)
| | - Xizi Xu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
| | - Han-Lin Wang
- Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi 435003, China; (H.-L.W.); (J.-X.H.)
| | - Jie-Xun Huang
- Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi 435003, China; (H.-L.W.); (J.-X.H.)
| | - Xiao-Hua Zuo
- School of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi 435003, China; (W.-D.H.); (X.-H.Z.)
| | - Xiao-Ju Lu
- School of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi 435003, China; (W.-D.H.); (X.-H.Z.)
- Correspondence: (X.-J.L.); (X.-L.L.); (D.-G.Y.); Tel.: +86-714-6348814 (X.-J.L.); +86-714-6368937 (X.-L.L.); +86-21-55270632 (D.-G.Y.)
| | - Xian-Li Liu
- Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi 435003, China; (H.-L.W.); (J.-X.H.)
- Correspondence: (X.-J.L.); (X.-L.L.); (D.-G.Y.); Tel.: +86-714-6348814 (X.-J.L.); +86-714-6368937 (X.-L.L.); +86-21-55270632 (D.-G.Y.)
| | - Deng-Guang Yu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
- Correspondence: (X.-J.L.); (X.-L.L.); (D.-G.Y.); Tel.: +86-714-6348814 (X.-J.L.); +86-714-6368937 (X.-L.L.); +86-21-55270632 (D.-G.Y.)
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Mulholland EJ. Electrospun Biomaterials in the Treatment and Prevention of Scars in Skin Wound Healing. Front Bioeng Biotechnol 2020; 8:481. [PMID: 32582653 PMCID: PMC7283777 DOI: 10.3389/fbioe.2020.00481] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 04/24/2020] [Indexed: 12/13/2022] Open
Abstract
Electrospinning is a promising method for the rapid and cost-effective production of nanofibers from a wide variety of polymers given the high surface area morphology of these nanofibers, they make excellent wound dressings, and so have significant potential in the prevention and treatment of scars. Wound healing and the resulting scar formation are exceptionally well-characterized on a molecular and cellular level. Despite this, novel effective anti-scarring treatments which exploit this knowledge are still clinically absent. As the process of electrospinning can produce fibers from a variety of polymers, the treatment avenues for scars are vast, with therapeutic potential in choice of polymers, drug incorporation, and cell-seeded scaffolds. It is essential to show the new advances in this field; thus, this review will investigate the molecular processes of wound healing and scar tissue formation, the process of electrospinning, and examine how electrospun biomaterials can be utilized and adapted to wound repair in the hope of reducing scar tissue formation and conferring an enhanced tensile strength of the skin. Future directions of the research will explore potential novel electrospun treatments, such as gene therapies, as targets for enhanced tissue repair applications. With this class of biomaterial gaining such momentum and having such promise, it is necessary to refine our understanding of its process to be able to combine this technology with cutting-edge therapies to relieve the burden scars place on world healthcare systems.
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Affiliation(s)
- Eoghan J. Mulholland
- Gastrointestinal Stem Cell Biology Laboratory, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
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Akşit NN, Gürdap S, İşoğlu SD, İşoğlu İA. Preparation of antibacterial electrospun poly(D, L-lactide-co-glycolide)/gelatin blend membranes containing Hypericum capitatum var. capitatum. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1765354] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Nazende Nur Akşit
- Bioengineering Department, Faculty of Life and Natural Sciences, Abdullah Gül University, Kayseri, Turkey
| | - Seda Gürdap
- Bioengineering Department, Faculty of Life and Natural Sciences, Abdullah Gül University, Kayseri, Turkey
| | - Sevil Dinçer İşoğlu
- Bioengineering Department, Faculty of Life and Natural Sciences, Abdullah Gül University, Kayseri, Turkey
| | - İsmail Alper İşoğlu
- Bioengineering Department, Faculty of Life and Natural Sciences, Abdullah Gül University, Kayseri, Turkey
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Voniatis C, Balsevicius L, Barczikai D, Juriga D, Takács A, Kőhidai L, Nagy K, Jedlovszky-Hajdu A. Co-electrospun polysuccinimide/poly(vinyl alcohol) composite meshes for tissue engineering. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112895] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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