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Szabó A, De Decker I, Semey S, E.Y. Claes K, Blondeel P, Monstrey S, Dorpe JV, Van Vlierberghe S. Photo-crosslinkable polyester microneedles as sustained drug release systems toward hypertrophic scar treatment. Drug Deliv 2024; 31:2305818. [PMID: 38424728 PMCID: PMC10956933 DOI: 10.1080/10717544.2024.2305818] [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: 07/27/2023] [Accepted: 12/22/2023] [Indexed: 03/02/2024] Open
Abstract
Burn injuries can result in a significant inflammatory response, often leading to hypertrophic scarring (HTS). Local drug therapies e.g. corticoid injections are advised to treat HTS, although they are invasive, operator-dependent, extremely painful and do not permit extended drug release. Polymer-based microneedle (MN) arrays can offer a viable alternative to standard care, while allowing for direct, painless dermal drug delivery with tailorable drug release profile. In the current study, we synthesized photo-crosslinkable, acrylate-endcapped urethane-based poly(ε-caprolactone) (AUP-PCL) toward the fabrication of MNs. Physico-chemical characterization (1H-NMR, evaluation of swelling, gel fraction) of the developed polymer was performed and confirmed successful acrylation of PCL-diol. Subsequently, AUP-PCL, and commercially available PCL-based microneedle arrays were fabricated for comparative evaluation of the constructs. Hydrocortisone was chosen as model drug. To enhance the drug release efficiency of the MNs, Brij®35, a nonionic surfactant was exploited. The thermal properties of the MNs were evaluated via differential scanning calorimetry. Compression testing of the arrays confirmed that the MNs stay intact upon applying a load of 7 N, which correlates to the standard dermal insertion force of MNs. The drug release profile of the arrays was evaluated, suggesting that the developed PCL arrays can offer efficient drug delivery for up to two days, while the AUP-PCL arrays can provide a release up to three weeks. Finally, the insertion of MN arrays into skin samples was performed, followed by histological analysis demonstrating the AUP-PCL MNs outperforming the PCL arrays upon providing pyramidical-shaped perforations through the epidermal layer of the skin.
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Affiliation(s)
- Anna Szabó
- Polymer Chemistry and Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Ignace De Decker
- Burn Center, Ghent University Hospital, Ghent, Belgium
- Department of Plastic Surgery, Ghent University Hospital, Ghent, Belgium
| | - Sam Semey
- Polymer Chemistry and Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Karel E.Y. Claes
- Burn Center, Ghent University Hospital, Ghent, Belgium
- Department of Plastic Surgery, Ghent University Hospital, Ghent, Belgium
| | - Phillip Blondeel
- Burn Center, Ghent University Hospital, Ghent, Belgium
- Department of Plastic Surgery, Ghent University Hospital, Ghent, Belgium
| | - Stan Monstrey
- Burn Center, Ghent University Hospital, Ghent, Belgium
- Department of Plastic Surgery, Ghent University Hospital, Ghent, Belgium
| | - Jo Van Dorpe
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Sandra Van Vlierberghe
- Polymer Chemistry and Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
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2
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Gonzalez-Prada I, Borges A, Santos-Torres B, Magariños B, Simões M, Concheiro A, Alvarez-Lorenzo C. Antimicrobial cyclodextrin-assisted electrospun fibers loaded with carvacrol, citronellol and cinnamic acid for wound healing. Int J Biol Macromol 2024; 277:134154. [PMID: 39116822 DOI: 10.1016/j.ijbiomac.2024.134154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/14/2024] [Accepted: 07/23/2024] [Indexed: 08/10/2024]
Abstract
This work aimed to explore an alternative to the use of antibiotics for prevention and treatment of wounds infection caused by two common bacterial pathogens Staphylococcus aureus and Pseudomonas aeruginosa. For this purpose, three different essential oil components (EOCs), namely carvacrol, citronellol and cinnamic acid, were loaded into electrospun fibers of poly-ε-caprolactone (PCL) aided by alpha-cyclodextrin (αCD) and hydroxypropyl-β-cyclodextrin (HPβCD). Electrospun-fibers prepared with each EOC and their mixtures were screened for antimicrobial capability and characterized regarding morphological, mechanical, thermal, surface polarity, antibiofilm and antioxidant properties. αCD formed poly(pseudo)rotaxanes with PCL and weakly interacted with EOCs, while HPβCD facilitated EOC encapsulation and formation of homogeneous fibers (500-1000 nm diameter) without beads. PCL/HPβCD fibers with high concentration of EOCs (mainly carvacrol and cinnamic acid) showed strong antibiofilm (>3 log CFU reduction) and antioxidant activity (10-50% DPPH scavenging effects). Different performances were recorded for the EOCs and their mixtures; cinnamic acid migrated to fiber surface and was released faster. Fibers biocompatibility was verified using hemolysis tests and in ovo tissue integration and angiogenesis assays. Overall, HPβCD facilitates complete release of EOCs from the fibers to the aqueous medium, being an environment-friendly and cost-effective strategy for the treatment of infected wounds.
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Affiliation(s)
- Iago Gonzalez-Prada
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Faculty of Pharmacy, Institute of Materials (iMATUS), and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Spain
| | - Anabela Borges
- LEPABE - Department of Chemical Engineering, Faculty of Engineering, University of Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Portugal
| | - Beatriz Santos-Torres
- Departamento de Microbiología y Parasitología, Facultad de Biología, CIBUS, Universidade de Santiago de Compostela, Spain
| | - Beatriz Magariños
- Departamento de Microbiología y Parasitología, Facultad de Biología, CIBUS, Universidade de Santiago de Compostela, Spain
| | - Manuel Simões
- LEPABE - Department of Chemical Engineering, Faculty of Engineering, University of Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Portugal
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Faculty of Pharmacy, Institute of Materials (iMATUS), and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Faculty of Pharmacy, Institute of Materials (iMATUS), and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Spain.
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3
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Taephatthanasagon T, Purbantoro SD, Rodprasert W, Pathanachai K, Charoenlertkul P, Mahanonda R, Sa-Ard-Lam N, Kuncorojakti S, Soedarmanto A, Jamilah NS, Osathanon T, Sawangmake C, Rattanapuchpong S. Osteogenic potentials in canine mesenchymal stem cells: unraveling the efficacy of polycaprolactone/hydroxyapatite scaffolds in veterinary bone regeneration. BMC Vet Res 2024; 20:403. [PMID: 39251976 DOI: 10.1186/s12917-024-04246-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Accepted: 08/26/2024] [Indexed: 09/11/2024] Open
Abstract
BACKGROUND The integration of stem cells, signaling molecules, and biomaterial scaffolds is fundamental for the successful engineering of functional bone tissue. Currently, the development of composite scaffolds has emerged as an attractive approach to meet the criteria of ideal scaffolds utilized in bone tissue engineering (BTE) for facilitating bone regeneration in bone defects. Recently, the incorporation of polycaprolactone (PCL) with hydroxyapatite (HA) has been developed as one of the suitable substitutes for BTE applications owing to their promising osteogenic properties. In this study, a three-dimensional (3D) scaffold composed of PCL integrated with HA (PCL/HA) was prepared and assessed for its ability to support osteogenesis in vitro. Furthermore, this scaffold was evaluated explicitly for its efficacy in promoting the proliferation and osteogenic differentiation of canine bone marrow-derived mesenchymal stem cells (cBM-MSCs) to fill the knowledge gap regarding the use of composite scaffolds for BTE in the veterinary orthopedics field. RESULTS Our findings indicate that the PCL/HA scaffolds substantially supported the proliferation of cBM-MSCs. Notably, the group subjected to osteogenic induction exhibited a markedly upregulated expression of the osteogenic gene osterix (OSX) compared to the control group. Additionally, the construction of 3D scaffold constructs with differentiated cells and an extracellular matrix (ECM) was successfully imaged using scanning electron microscopy. Elemental analysis using a scanning electron microscope coupled with energy-dispersive X-ray spectroscopy confirmed that these constructs possessed the mineral content of bone-like compositions, particularly the presence of calcium and phosphorus. CONCLUSIONS This research highlights the synergistic potential of PCL/HA scaffolds in concert with cBM-MSCs, presenting a multidisciplinary approach to scaffold fabrication that effectively regulates cell proliferation and osteogenic differentiation. Future in vivo studies focusing on the repair and regeneration of bone defects are warranted to further explore the regenerative capacity of these constructs, with the ultimate goal of assessing their potential in veterinary clinical applications.
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Affiliation(s)
- Teeanutree Taephatthanasagon
- Graduate Program in Veterinary Bioscience, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Veterinary Clinical Stem Cell and Bioengineering Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Veterinary Stem Cell and Bioengineering Innovation Center (VSCBIC), Veterinary Pharmacology and Stem Cell Research Laboratory, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Steven Dwi Purbantoro
- Veterinary Clinical Stem Cell and Bioengineering Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Veterinary Stem Cell and Bioengineering Innovation Center (VSCBIC), Veterinary Pharmacology and Stem Cell Research Laboratory, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Watchareewan Rodprasert
- Veterinary Clinical Stem Cell and Bioengineering Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Veterinary Stem Cell and Bioengineering Innovation Center (VSCBIC), Veterinary Pharmacology and Stem Cell Research Laboratory, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Koranis Pathanachai
- Veterinary Clinical Stem Cell and Bioengineering Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Veterinary Stem Cell and Bioengineering Innovation Center (VSCBIC), Veterinary Pharmacology and Stem Cell Research Laboratory, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Department of Pharmacology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Piyawan Charoenlertkul
- Veterinary Clinical Stem Cell and Bioengineering Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Veterinary Stem Cell and Bioengineering Innovation Center (VSCBIC), Veterinary Pharmacology and Stem Cell Research Laboratory, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Department of Pharmacology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Rangsini Mahanonda
- Immunology Research Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Periodontal Disease and Dental Implant, Chulalongkorn University, Bangkok, Thailand
| | - Noppadol Sa-Ard-Lam
- Immunology Research Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Periodontal Disease and Dental Implant, Chulalongkorn University, Bangkok, Thailand
| | - Suryo Kuncorojakti
- Division of Veterinary Anatomy, Department of Veterinary Science, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Adretta Soedarmanto
- Veterinary Clinical Stem Cell and Bioengineering Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Veterinary Stem Cell and Bioengineering Innovation Center (VSCBIC), Veterinary Pharmacology and Stem Cell Research Laboratory, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Nabila Syarifah Jamilah
- Veterinary Clinical Stem Cell and Bioengineering Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Veterinary Stem Cell and Bioengineering Innovation Center (VSCBIC), Veterinary Pharmacology and Stem Cell Research Laboratory, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Thanaphum Osathanon
- Center of Excellence for Dental Stem Cell Biology, Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Regenerative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Chenphop Sawangmake
- Veterinary Clinical Stem Cell and Bioengineering Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Veterinary Stem Cell and Bioengineering Innovation Center (VSCBIC), Veterinary Pharmacology and Stem Cell Research Laboratory, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Department of Pharmacology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Regenerative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Sirirat Rattanapuchpong
- Veterinary Clinical Stem Cell and Bioengineering Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
- Veterinary Stem Cell and Bioengineering Innovation Center (VSCBIC), Veterinary Pharmacology and Stem Cell Research Laboratory, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
- Academic Affairs, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
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Ray E, Jadhav K, Kadian M, Sharma G, Sharma K, Jhilta A, Singh R, Kumar A, Verma RK. Inhalable chitosan-coated nano-assemblies potentiate niclosamide for targeted abrogation of non-small-cell lung cancer through dual modulation of autophagy and apoptosis. Int J Biol Macromol 2024:135411. [PMID: 39245099 DOI: 10.1016/j.ijbiomac.2024.135411] [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: 03/19/2024] [Revised: 08/14/2024] [Accepted: 09/05/2024] [Indexed: 09/10/2024]
Abstract
Lung carcinoma, particularly non-small-cell lung cancer (NSCLC), accounts for a significant portion of cancer-related deaths, with a fatality rate of approximately 19 %. Niclosamide (NIC), originally an anthelmintic drug, has attracted attention for its potential in disrupting cancer cells through various intracellular signaling pathways. However, its effectiveness is hampered by limited solubility, reducing its bioavailability. This study investigates the efficacy of NIC against lung cancer using inhalable hybrid nano-assemblies with chitosan-functionalized Poly (ε-caprolactone) (PCL) as a carrier for pulmonary delivery. The evaluation encompasses various aspects such as aerodynamic and physicochemical properties, drug release kinetics, cellular uptake, biocompatibility, cell migration, autophagic flux, and apoptotic cell death in A549 lung cancer cells. Increasing NIC dosage correlates with enhanced inhibition of cell proliferation, showing a dose-dependent profile (approximately 75 % inhibition efficiency at 20 μg/ml of NIC). Optimization of inhaled dosage and efficacy is conducted in a murine model of NNK-induced tumor-bearing lung cancer. Following inhalation, NIC-CS-PCL-NA demonstrates significant lung deposition, retention, and metabolic stability. Inhalable nano-assemblies promote autophagy flux and induce apoptotic cell death. Preclinical trials reveal substantial tumor regression with minimal adverse effects, underscoring the potential of inhalable NIC-based nano-formulation as a potent therapeutic approach for NSCLC, offering effective tumor targeting and killing capabilities.
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Affiliation(s)
- Eupa Ray
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, Punjab 140306, India; University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Krishna Jadhav
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, Punjab 140306, India
| | - Monika Kadian
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Garima Sharma
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Kritika Sharma
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Agrim Jhilta
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, Punjab 140306, India
| | - Raghuraj Singh
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, Punjab 140306, India
| | - Anil Kumar
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Rahul Kumar Verma
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, Punjab 140306, India.
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5
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Culbreath CJ, McCullen SD, Mefford OT. Controlling Mechanical Properties of Medical-Grade Scaffolds through Electrospinning Parameter Selection. ACS OMEGA 2024; 9:36982-36992. [PMID: 39246470 PMCID: PMC11375708 DOI: 10.1021/acsomega.4c01864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 07/28/2024] [Accepted: 07/30/2024] [Indexed: 09/10/2024]
Abstract
Electrospinning (ES) is a versatile process mode for creating fibrous materials with various structures that have broad applications ranging from regenerative medicine to tissue engineering and surgical mesh implants. The recent commercialization of this technology for implant use has driven the use of resorbable electrospun products. Resorbable electrospun meshes offer great promise as temporary implants that can utilize the layer upon layer method of additive manufacturing to incorporate porosity as a function of process parameters into a scaffold structure. The interconnected porosity and feature size known to ES have previously been observed to hold great potential for simulating the natural cellular environment of soft tissue. This microstructure, proper degradation kinetics, and mechanical properties combine to provide the design basis for artificial tissue structures that could aid in not only wound healing but also true tissue engineering and regenerative medicine. While current advancement in the field is understood to be limited by material properties, the importance of optimizing mechanical properties with currently available materials should not be overlooked. This work investigated the process parameter effects and interactions that control the structure-property relationship for a range of medical-grade aliphatic polyester materials with a range of intrinsic properties. An ε-caprolactone homopolymer (PCL), l-lactide homopolymer (PLLA), and Lactoflex, a copolymer with intermediate properties relative to the homopolymers, were characterized before, during, and after the additive manufacturing process. The interacting effects of process parameters, distance to collector, and dispensing rate were shown to produce variable-density, nonwoven scaffold structures. The resorbable mesh scaffolds of PLLA, PCL, and Lactoflex demonstrated a broad range of mechanical properties (approximately 1-10 MPa ultimate tensile strength and 5-390 MPa tensile modulus). Postprocessing of scaffolds demonstrated removal of solvents and preservation of micrometer-sized features. Resorbable polymers and electrospinning can produce scaffold materials with excellent features and offer tremendous potential in the field of implantable resorbable devices.
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Affiliation(s)
- Clayton J Culbreath
- Poly-Med, Inc. Anderson, South Carolina 29625, United States
- Department of Materials Science and Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Seth D McCullen
- Poly-Med, Inc. Anderson, South Carolina 29625, United States
- Department of Materials Science and Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | - O Thompson Mefford
- Department of Materials Science and Engineering, Clemson University, Clemson, South Carolina 29634, United States
- Department of Bioengineering, Clemson University, Clemson, South Carolina 29634, United States
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Walsh T, Hadisi Z, Dabiri SMH, Hasanpour S, Samimi S, Azimzadeh M, Akbari M. Facile roll-to-roll production of nanoporous fiber coatings for advanced wound care sutures. NANOSCALE 2024; 16:15615-15628. [PMID: 39110148 DOI: 10.1039/d4nr01432d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Theranostic sutures are derived from innovative ideas to enhance wound healing results by adding wound diagnostics and therapeutics to typical sutures by functionalizing them with additional materials. Here, we present a new direct electrospinning method for the fast, continuous, inexpensive, and high-throughput production of versatile nanofibrous-coated suture threads, with precise control over various essential microstructural and physical characteristics. The thickness of the coating layer and the alignment of nanofibers with the thread's direction can be adjusted by the user by varying the spooling speed and the displacement between the spinneret needle and thread. To show the flexibility of our method for a range of different materials selected, gelatin, polycaprolactone, silk fibroin, and PEDOT:PSS (poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate)) were the resultant nanofibers characterized by scanning electron microscopy (SEM) imaging and conductivity tests. In a series of in vitro and ex vivo tests (pig skin), sutures were successfully tested for their flexibility and mechanical properties when used as weaving and knotting sutures, and their biocompatibility with a keratinocyte cell line. For temperature-based drug-releasing tests, two fluorescent molecules as drug models with high and low molecular weight, namely fluorescein isothiocyanate-dextran (20 kDa) and rhodamine B (470 Da), were used, and their steady release with incremental increase of temperature to 37 °C over 120 min was seen, which is appropriate for bacterial treatment drugs. Given the advantages of the presented technique, it seems to have promising potential to be used in future medical applications for wound closure and bacterial infection treatment via a temperature-triggered drug release strategy.
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Affiliation(s)
- Tavia Walsh
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Zhina Hadisi
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Seyed Mohammad Hossein Dabiri
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Sadegh Hasanpour
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Sadaf Samimi
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Mostafa Azimzadeh
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Mohsen Akbari
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
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7
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Tomioka D, Jung SA, Pich A, Matsusaki M. Fabrication of oxygen-releasing dextran microgels by droplet-based microfluidic method. RSC Adv 2024; 14:26544-26555. [PMID: 39175690 PMCID: PMC11339778 DOI: 10.1039/d4ra04356a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Accepted: 08/14/2024] [Indexed: 08/24/2024] Open
Abstract
In the tissue engineering field, the supply of oxygen to three-dimensional (3D) tissues is an important aspect to avoid necrosis due to hypoxia. Although oxygen-releasing bulk materials containing calcium peroxide (CaO2, CP) have attracted much attention, micrometer-sized oxygen-releasing soft materials would be advantageous because of their highly controllable structures, which can be applied for cell scaffolds, injectable materials, and bioink components in 3D bioprinting. In this study, oxygen-releasing microgels were fabricated via a droplet-based microfluidic system. Homogeneous, monodisperse and stable oxygen-releasing microgels were obtained by photo-crosslinking of droplets composed of biocompatible dextran modified with methacrylate groups and CP nanoparticles as an oxygen source. We also used our microfluidic system for the in situ amorphous calcium carbonate (CaCO3, ACC) formation on the surface of CP nanoparticles to achieve the controlled release of oxygen from the microgel. Oxygen release from an ACC-CP microgel in a neutral cell culture medium was suppressed because incorporation of CP in the ACC suppressed the reaction with water. Strikingly, stimuli to dissolve ACC such as a weak acidic conditions triggered the oxygen release from microgels loaded with ACC-CP, as the dissolution of CaCO3 allows CP to react. Taken together, applications of this new class of biomaterials for tissue engineering are greatly anticipated. In addition, the developed microfluidic system can be used for a variety of oxygen-releasing microgels by changing the substrates of the hydrogel network.
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Affiliation(s)
- Daisuke Tomioka
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
| | - Shannon Anna Jung
- DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University Forckenbeckstraße 50 52074 Aachen Germany
- Institute for Technical and Macromolecular Chemistry, RWTH Aachen University Worringerweg 2 52074 Aachen Germany
| | - Andrij Pich
- DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University Forckenbeckstraße 50 52074 Aachen Germany
- Institute for Technical and Macromolecular Chemistry, RWTH Aachen University Worringerweg 2 52074 Aachen Germany
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
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8
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Yurtsever MÇ, Aydoğan S, İyigündoğdu Z, Cömertpay A, Demir D, Ceylan S. A new application of avocado oil to enrich the biological activities of polycaprolactone membranes for tissue engineering. Biopolymers 2024:e23617. [PMID: 39032016 DOI: 10.1002/bip.23617] [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: 05/05/2024] [Revised: 07/10/2024] [Accepted: 07/12/2024] [Indexed: 07/22/2024]
Abstract
The metabolites synthesized by plants to protect themselves serves as natural antimicrobial agents used in biomaterials. In this study, avocado oil (AO), was incorporated as a plant source and natural antimicrobial agent into polycaprolactone (PCL) membranes. The effects of varying AO ratios (25, 50, and 100 wt%.-PCL@25AO, PCL@50AO, PCL@100AO) on PCL membrane morphology, chemical structure, wettability, antimicrobial activity, and cell viabilities were investigated. It was demonstrated that the AO acts as a pore-forming agent in solvent-casted membranes. Young's modulus of the membranes varied between 602.68 and 31.92 MPa and more flexible membranes were obtained with increasing AO content. Inhibition zones of AO were recorded between 7.86 and 13.97 mm against clinically relevant microbial strains including bacteria, yeast, and fungi. Antimicrobial activity of AO was retained in PCL membranes at all ratios. Resazurin assay indicated that PCL@25AO membranes were cytocompatible with mouse fibroblast cells (L929 cell line) on day 6 showing 72.4% cell viability with respect to neat PCL membranes. Viability results were supported by scanning electron microscopy images and DAPI staining. The overall results of this study highlight the potential of PCL@25AO membranes as a biomaterial with antimicrobial properties, cytocompatibility, and mechanical strength suitable for various biomedical applications.
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Affiliation(s)
- Merve Çapkın Yurtsever
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Turkey
| | - Selin Aydoğan
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Turkey
| | - Zeynep İyigündoğdu
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Turkey
| | - Alican Cömertpay
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Turkey
| | - Didem Demir
- Department of Chemistry and Chemical Process Technologies, Tarsus University, Tarsus, Turkey
| | - Seda Ceylan
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Turkey
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9
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Collins J, Barra JM, Holcomb K, Ocampo A, Fremin A, Akolade J, Kratz A, Hays JK, Shilleh A, Hodson DJ, Broichhagen J, Russ HA, Farnsworth NL. Peptide Coated Polycaprolactone-Benzalkonium Chloride Nanocapsules for Targeted Drug Delivery to the Pancreatic β-Cell. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.15.603612. [PMID: 39071322 PMCID: PMC11275727 DOI: 10.1101/2024.07.15.603612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Targeting of current therapies to treat or prevent loss of pancreatic islet β-cells in Type 1 Diabetes (T1D) may provide improved efficacy and reduce off target effects. Current efforts to target the β-cell are limited by a lack of β-cell specific targets and the inability to test multiple targeting moieties with the same delivery vehicle. Here we fabricate a novel tailorable polycaprolactone nanocapsule (NC) where multiple different targeting peptides can be interchangeably attached for β-cell specific delivery. Incorporation of a cationic surfactant in the NC shell allows for the attachment of Exendin-4 and an antibody for ectonucleoside triphosphate diphosphohydrolase 3 (ENTPD3) for β-cell specific targeting. The average NC size ranges from 250-300nm with a polydispersity index under 0.2. The NCs are non-toxic, stable in media culture, and can be lyophilized and reconstituted. NCs coated with targeting peptide were taken up by human cadaveric islet β-cells and human stem cell-derived β-like cells (sBC) in vitro with a high level of specificity. Furthermore, NCs successfully delivered both hydrophobic and hydrophilic cargo to human β-cells. Finally, Exendin-4 coated NCs were stable and targeted the mouse pancreatic islet β-cell in vivo . Our unique NC design allows for the interchangeable coating of targeting peptides for future screening of targets with improved cell specificity. The ability to target and deliver thera-peutics to human pancreatic β-cells opens avenues for improved therapies and treatments to help the delay onset, prevent, or reverse T1D.
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10
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Nilawar S, Yadav P, Jain N, Saini DK, Chatterjee K. Protective Role of Nanoceria-Infused Nanofibrous Scaffold toward Bone Tissue Regeneration with Senescent Cells. Biomacromolecules 2024; 25:4074-4086. [PMID: 38838242 DOI: 10.1021/acs.biomac.4c00184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
The presence of oxidative stress in bone defects leads to delayed regeneration, especially in the aged population and patients receiving cancer treatment. This delay is attributed to the increased levels of reactive oxygen species (ROS) in these populations due to the accumulation of senescent cells. Tissue-engineered scaffolds are emerging as an alternative method to treat bone defects. In this study, we engineered tissue scaffolds tailored to modulate the adverse effects of oxidative stress and promote bone regeneration. We used polycaprolactone to fabricate nanofibrous mats by using electrospinning. We exploited the ROS-scavenging properties of cerium oxide nanoparticles to alleviate the high oxidative stress microenvironment caused by the presence of senescent cells. We characterized the nanofibers for their physical and mechanical properties and utilized an ionization-radiation-based model to induce senescence in bone cells. We demonstrate that the presence of ceria can modulate ROS levels, thereby reducing the level of senescence and promoting osteogenesis. Overall, this study demonstrates that ceria-infused nanofibrous scaffolds can be used for augmenting the osteogenic activity of senescent progenitor cells, which has important implications for engineering bone tissue scaffolds for patients with low regeneration capabilities.
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Affiliation(s)
- Sagar Nilawar
- Department of Materials Engineering, Indian Institute of Science, C.V Raman Avenue, Bangalore 560012, India
| | - Parul Yadav
- Department of Bioengineering, Indian Institute of Science, C.V Raman Avenue, Bangalore 560012, India
| | - Nipun Jain
- Department of Materials Engineering, Indian Institute of Science, C.V Raman Avenue, Bangalore 560012, India
| | - Deepak Kumar Saini
- Department of Bioengineering, Indian Institute of Science, C.V Raman Avenue, Bangalore 560012, India
- Department of Developmental Biology and Genetics, Indian Institute of Science, C.V Raman Avenue, Bangalore 560012, India
| | - Kaushik Chatterjee
- Department of Materials Engineering, Indian Institute of Science, C.V Raman Avenue, Bangalore 560012, India
- Department of Bioengineering, Indian Institute of Science, C.V Raman Avenue, Bangalore 560012, India
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11
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Kamaci M. A Polycaprolactone-Capped ZnO Quantum Dots-Based Fluorometric Sensor for the Detection of Fe 3+ Ions in Seawater. J Fluoresc 2024; 34:1643-1654. [PMID: 37589936 DOI: 10.1007/s10895-023-03394-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/10/2023] [Indexed: 08/18/2023]
Abstract
Fe3+ ion plays a very active role in life, agriculture, and industry. Human health and the environment are seriously affected by the abnormal presence or excess of this cation. Therefore, the development of a fast, reliable, sensitive, and simple fluorescent probe to detect this cation is crucial. In the present paper, polycaprolactone-capped zinc oxide quantum dots were prepared for the determination of Fe3+ ions. The proposed fluorescent chemosensor exhibited a fluorometric and strong quenching effect toward Fe3+ ions at two wavelengths (303 and 602 nm). The limit of detection (LOD) was calculated as 0.410, and 0.333µM at the mentioned wavelengths. Also, the binding stoichiometric ratio was calculated as 1:1 by Job's plot. The findings indicated that the PCL@ZnO colorimetric chemosensor could be successfully applied with reliable, and good accuracy for the detection of Fe3+ ions in real seawater samples.
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Affiliation(s)
- Musa Kamaci
- Piri Reis University, Tuzla, 34940, Istanbul, Turkey.
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12
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Hoseini M, Hamidi S, Salehi E, Mohammadi A, Mirhoseini F, Ravaghi M. Multi-variate multi-objective optimization of production conditions for electro-spun skin scaffold using RSM and investigation of gamma irradiation effects on the properties of the optimized sample. Heliyon 2024; 10:e32941. [PMID: 39021952 PMCID: PMC11252863 DOI: 10.1016/j.heliyon.2024.e32941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 06/11/2024] [Accepted: 06/12/2024] [Indexed: 07/20/2024] Open
Abstract
Developing electro-spun scaffolds with ideal mechanical properties for skin purposes can profit from using the Response Surface Methodology technique to define and optimize the outcome quality and required sterilization for use in vivo. This study investigated the effects of four main independent electrospinning variables for polycaprolactone nanofibers scaffold using multi-variable and multi-objective optimization. It was done to determine significant parameters on responses and find optimal conditions to reach the preferred properties. Young's modulus, elongation-at-break, and tensile strength were the responses. After obtaining appropriate models, the impact share of variables on the responses was determined using Sobol sensitivity analysis. The results showed that flow rate is the most significant parameter of elastic modulus and tensile strength responses, with 76.45 % and 41.27 % impact shares, respectively. The polymer concentration is the following significant parameter on elongation at break, tensile strength and, Young's modulus responses with 64.35 %, 39.485 and, 14.28 % impact share, respectively. Based on the optimized results, a skin scaffold with desired mechanical properties was achieved (under solution concentration of 10 % w/v, flow rate of 2 mL/h, nuzzle-collector distance of 15 cm, and applied voltage of 20 kV). Then it was sterilized with gamma radiation of various doses (25, 40, and 55 kGy) to use in vivo. The SEM analysis indicated no significant change in fibrous morphology due to gamma irradiation at any dosage. FTIR analysis demonstrated the breakup of ester bonds due to gamma irradiation. For samples irradiated by 25 kGy, the crystallinity percentage decreased and chains crosslinking without losing the mechanical stability was dominant. The studies demonstrated that 25 kGy of gamma irradiation could improve the mechanical properties of the optimized PCL skin scaffold, which is very promising for wound healing.
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Affiliation(s)
- M. Hoseini
- Department of Physics, Faculty of Science, Arak University, P.O. Box: 38156, Arak, Iran
| | - S. Hamidi
- Department of Physics, Faculty of Science, Arak University, P.O. Box: 38156, Arak, Iran
| | - E. Salehi
- Chemical Engineering Department, Faculty of Engineering, Arak University, P.O. Box: 38156, Arak, Iran
| | - A. Mohammadi
- Department of Physics, Faculty of Science, Arak University, P.O. Box: 38156, Arak, Iran
| | - F. Mirhoseini
- Department of Chemistry, Faculty of Science, Arak University, P.O. Box: 38156, Arak, Iran
| | - M. Ravaghi
- Department of Physics, Faculty of Science, Arak University, P.O. Box: 38156, Arak, Iran
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13
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Liu Z, Jia J, Lei Q, Wei Y, Hu Y, Lian X, Zhao L, Xie X, Bai H, He X, Si L, Livermore C, Kuang R, Zhang Y, Wang J, Yu Z, Ma X, Huang D. Electrohydrodynamic Direct-Writing Micro/Nanofibrous Architectures: Principle, Materials, and Biomedical Applications. Adv Healthc Mater 2024:e2400930. [PMID: 38847291 DOI: 10.1002/adhm.202400930] [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: 03/12/2024] [Revised: 05/21/2024] [Indexed: 07/05/2024]
Abstract
Electrohydrodynamic (EHD) direct-writing has recently gained attention as a highly promising additive manufacturing strategy for fabricating intricate micro/nanoscale architectures. This technique is particularly well-suited for mimicking the extracellular matrix (ECM) present in biological tissue, which serves a vital function in facilitating cell colonization, migration, and growth. The integration of EHD direct-writing with other techniques has been employed to enhance the biological performance of scaffolds, and significant advancements have been made in the development of tailored scaffold architectures and constituents to meet the specific requirements of various biomedical applications. Here, a comprehensive overview of EHD direct-writing is provided, including its underlying principles, demonstrated materials systems, and biomedical applications. A brief chronology of EHD direct-writing is provided, along with an examination of the observed phenomena that occur during the printing process. The impact of biomaterial selection and architectural topographic cues on biological performance is also highlighted. Finally, the major limitations associated with EHD direct-writing are discussed.
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Affiliation(s)
- Zhengjiang Liu
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Jinqiao Jia
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Qi Lei
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
- Shanxi-Zheda Institute of advanced Materials and Chemical Engineering, Taiyuan, 030032, P. R. China
| | - Yan Wei
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
- Shanxi-Zheda Institute of advanced Materials and Chemical Engineering, Taiyuan, 030032, P. R. China
| | - Yinchun Hu
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
- Shanxi-Zheda Institute of advanced Materials and Chemical Engineering, Taiyuan, 030032, P. R. China
| | - Xiaojie Lian
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
- Shanxi-Zheda Institute of advanced Materials and Chemical Engineering, Taiyuan, 030032, P. R. China
| | - Liqin Zhao
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
- Shanxi-Zheda Institute of advanced Materials and Chemical Engineering, Taiyuan, 030032, P. R. China
| | - Xin Xie
- Xellar Biosystems, Cambridge, MA, 02458, USA
| | - Haiqing Bai
- Xellar Biosystems, Cambridge, MA, 02458, USA
| | - Xiaomin He
- Xellar Biosystems, Cambridge, MA, 02458, USA
| | - Longlong Si
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Carol Livermore
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Rong Kuang
- Zhejiang Institute for Food and Drug Control, Hangzhou, 310000, P. R. China
| | - Yi Zhang
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, P. R. China
| | - Jiucun Wang
- Human Phenome Institute, Fudan University, Shanghai, 200433, P. R. China
| | - Zhaoyan Yu
- Shandong Public Health Clinical Center, Shandong University, Jinan, 250000, P. R. China
| | - Xudong Ma
- Cytori Therapeutics LLC., Shanghai, 201802, P. R. China
| | - Di Huang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
- Shanxi-Zheda Institute of advanced Materials and Chemical Engineering, Taiyuan, 030032, P. R. China
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14
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Generalova AN, Vikhrov AA, Prostyakova AI, Apresyan SV, Stepanov AG, Myasoedov MS, Oleinikov VA. Polymers in 3D printing of external maxillofacial prostheses and in their retention systems. Int J Pharm 2024; 657:124181. [PMID: 38697583 DOI: 10.1016/j.ijpharm.2024.124181] [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: 11/05/2023] [Revised: 04/12/2024] [Accepted: 04/28/2024] [Indexed: 05/05/2024]
Abstract
Maxillofacial defects, arising from trauma, oncological disease or congenital abnormalities, detrimentally affect daily life. Prosthetic repair offers the aesthetic and functional reconstruction with the help of materials mimicking natural tissues. 3D polymer printing enables the design of patient-specific prostheses with high structural complexity, as well as rapid and low-cost fabrication on-demand. However, 3D printing for prosthetics is still in the early stage of development and faces various challenges for widespread use. This is because the most suitable polymers for maxillofacial restoration are soft materials that do not have the required printability, mechanical strength of the printed parts, as well as functionality. This review focuses on the challenges and opportunities of 3D printing techniques for production of polymer maxillofacial prostheses using computer-aided design and modeling software. Review discusses the widely used polymers, as well as their blends and composites, which meet the most important assessment criteria, such as the physicochemical, biological, aesthetic properties and processability in 3D printing. In addition, strategies for improving the polymer properties, such as their printability, mechanical strength, and their ability to print multimaterial and architectural structures are highlighted. The current state of the prosthetic retention system is presented with a focus on actively used polymer adhesives and the recently implemented prosthesis-supporting osseointegrated implants, with an emphasis on their creation from 3D-printed polymers. The successful prosthetics is discussed in terms of the specificity of polymer materials at the restoration site. The approaches and technological prospects are also explored through the examples of the nasal, auricle and ocular prostheses, ranging from prototypes to end-use products.
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Affiliation(s)
- Alla N Generalova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; Federal Scientific Research Center "Crystallography and Photonics" of the Russian Academy of Sciences, 119333 Moscow, Russia.
| | - Alexander A Vikhrov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Anna I Prostyakova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Samvel V Apresyan
- Institute of Digital Dentistry, Medical Institute, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya 6, 117198 Moscow, Russia
| | - Alexander G Stepanov
- Institute of Digital Dentistry, Medical Institute, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya 6, 117198 Moscow, Russia
| | - Maxim S Myasoedov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Vladimir A Oleinikov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
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15
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Di Girolamo N. Biologicals and Biomaterials for Corneal Regeneration and Vision Restoration in Limbal Stem Cell Deficiency. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2401763. [PMID: 38777343 DOI: 10.1002/adma.202401763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 05/15/2024] [Indexed: 05/25/2024]
Abstract
The mammalian cornea is decorated with stem cells bestowed with the life-long task of renewing the epithelium, provided they remain healthy, functional, and in sufficient numbers. If not, a debilitating disease known as limbal stem cell deficiency (LSCD) can develop causing blindness. Decades after the first stem cell (SC) therapy is devised to treat this condition, patients continue to suffer unacceptable failures. During this time, improvements to therapeutics have included identifying better markers to isolate robust SC populations and nurturing them on crudely modified biological or biomaterial scaffolds including human amniotic membrane, fibrin, and contact lenses, prior to their delivery. Researchers are now gathering information about the biomolecular and biomechanical properties of the corneal SC niche to decipher what biological and/or synthetic materials can be incorporated into these carriers. Advances in biomedical engineering including electrospinning and 3D bioprinting with surface functionalization and micropatterning, and self-assembly models, have generated a wealth of biocompatible, biodegradable, integrating scaffolds to choose from, some of which are being tested for their SC delivery capacity in the hope of improving clinical outcomes for patients with LSCD.
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Affiliation(s)
- Nick Di Girolamo
- Mechanisms of Disease and Translational Research, School of Biomedical Sciences, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, 2052, Australia
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16
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Pal D, Das P, Mukherjee P, Roy S, Chaudhuri S, Kesh SS, Ghosh D, Nandi SK. Biomaterials-Based Strategies to Enhance Angiogenesis in Diabetic Wound Healing. ACS Biomater Sci Eng 2024; 10:2725-2741. [PMID: 38630965 DOI: 10.1021/acsbiomaterials.4c00216] [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: 04/19/2024]
Abstract
Amidst the present healthcare issues, diabetes is unique as an emerging class of affliction with chronicity in a majority of the population. To check and control its effects, there have been huge turnover and constant development of management strategies, and though a bigger part of the health care area is involved in achieving its control and the related issues such as the effect of diabetes on wound healing and care and many of the works have reached certain successful outcomes, still there is a huge lack in managing it, with maximum effect yet to be attained. Studying pathophysiology and involvement of various treatment options, such as tissue engineering, application of hydrogels, drug delivery methods, and enhancing angiogenesis, are at constantly developing stages either direct or indirect. In this review, we have gathered a wide field of information and different new therapeutic methods and targets for the scientific community, paving the way toward more settled ideas and research advances to cure diabetic wounds and manage their outcomes.
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Affiliation(s)
- Debajyoti Pal
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Pratik Das
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Prasenjit Mukherjee
- Department of Veterinary Clinical Complex, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Subhasis Roy
- Department of Veterinary Clinical Complex, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Shubhamitra Chaudhuri
- Department of Veterinary Clinical Complex, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Shyam Sundar Kesh
- Department of Veterinary Clinical Complex, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Debaki Ghosh
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Samit Kumar Nandi
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
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17
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Dec P, Żyłka M, Burszewski P, Modrzejewski A, Pawlik A. Recent Advances in the Use of Stem Cells in Tissue Engineering and Adjunct Therapies for Tendon Reconstruction and Future Perspectives. Int J Mol Sci 2024; 25:4498. [PMID: 38674084 PMCID: PMC11050411 DOI: 10.3390/ijms25084498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/11/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Due to their function, tendons are exposed to acute injuries. This type of damage to the musculoskeletal system represents a challenge for clinicians when natural regeneration and treatment methods do not produce the expected results. Currently, treatment is long and associated with long-term complications. In this review, we discuss the use of stem cells in the treatment of tendons, including how to induce appropriate cell differentiation based on gene therapy, growth factors, tissue engineering, proteins involved in regenerative process, drugs and three-dimensional (3D) structures. A multidirectional approach as well as the incorporation of novel components of the therapy will improve the techniques used and benefit patients with tendon injuries in the future.
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Affiliation(s)
- Paweł Dec
- Plastic and Reconstructive Surgery Department, 109 Military Hospital, 71-422 Szczecin, Poland; (P.D.); (M.Ż.); (P.B.)
| | - Małgorzata Żyłka
- Plastic and Reconstructive Surgery Department, 109 Military Hospital, 71-422 Szczecin, Poland; (P.D.); (M.Ż.); (P.B.)
| | - Piotr Burszewski
- Plastic and Reconstructive Surgery Department, 109 Military Hospital, 71-422 Szczecin, Poland; (P.D.); (M.Ż.); (P.B.)
| | | | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland
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18
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Guidi L, Cascone MG, Rosellini E. Light-responsive polymeric nanoparticles for retinal drug delivery: design cues, challenges and future perspectives. Heliyon 2024; 10:e26616. [PMID: 38434257 PMCID: PMC10906429 DOI: 10.1016/j.heliyon.2024.e26616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 03/05/2024] Open
Abstract
A multitude of sight-threatening retinal diseases, affecting hundreds of millions around the globe, lack effective pharmacological treatments due to ocular barriers and common drug delivery limitations. Polymeric nanoparticles (PNPs) are versatile drug carriers with sustained drug release profiles and tunable physicochemical properties which have been explored for ocular drug delivery to both anterior and posterior ocular tissues. PNPs can incorporate a wide range of drugs and overcome the challenges of conventional retinal drug delivery. Moreover, PNPs can be engineered to respond to specific stimuli such as ultraviolet, visible, or near-infrared light, and allow precise spatiotemporal control of the drug release, enabling tailored treatment regimens and reducing the number of required administrations. The objective of this study is to emphasize the therapeutic potential of light-triggered drug-loaded polymeric nanoparticles to treat retinal diseases through an exploration of ocular pathologies, challenges in drug delivery, current production methodologies and recent applications. Despite challenges, light-responsive PNPs hold the promise of substantially enhancing the treatment landscape for ocular diseases, aiming for an improved quality of life for patients.
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Affiliation(s)
- Lorenzo Guidi
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122, Pisa, Italy
| | - Maria Grazia Cascone
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122, Pisa, Italy
| | - Elisabetta Rosellini
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122, Pisa, Italy
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19
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Clark R, Shaver MP. Depolymerization within a Circular Plastics System. Chem Rev 2024; 124:2617-2650. [PMID: 38386877 PMCID: PMC10941197 DOI: 10.1021/acs.chemrev.3c00739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/18/2024] [Accepted: 02/08/2024] [Indexed: 02/24/2024]
Abstract
The societal importance of plastics contrasts with the carelessness with which they are disposed. Their superlative properties lead to economic and environmental efficiency, but the linearity of plastics puts the climate, human health, and global ecosystems at risk. Recycling is fundamental to transitioning this linear model into a more sustainable, circular economy. Among recycling technologies, chemical depolymerization offers a route to virgin quality recycled plastics, especially when valorizing complex waste streams poorly served by mechanical methods. However, chemical depolymerization exists in a complex and interlinked system of end-of-life fates, with the complementarity of each approach key to environmental, economic, and societal sustainability. This review explores the recent progress made into the depolymerization of five commercial polymers: poly(ethylene terephthalate), polycarbonates, polyamides, aliphatic polyesters, and polyurethanes. Attention is paid not only to the catalytic technologies used to enhance depolymerization efficiencies but also to the interrelationship with other recycling technologies and to the systemic constraints imposed by a global economy. Novel polymers, designed for chemical depolymerization, are also concisely reviewed in terms of their underlying chemistry and potential for integration with current plastic systems.
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Affiliation(s)
- Robbie
A. Clark
- Department
of Materials, School of Natural Sciences, University of Manchester, Manchester M13 9PL, United
Kingdom
- Sustainable
Materials Innovation Hub, Henry Royce Institute, University of Manchester, Manchester M13 9PL, United
Kingdom
| | - Michael P. Shaver
- Department
of Materials, School of Natural Sciences, University of Manchester, Manchester M13 9PL, United
Kingdom
- Sustainable
Materials Innovation Hub, Henry Royce Institute, University of Manchester, Manchester M13 9PL, United
Kingdom
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20
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Valotta A, Stelzer D, Reiter T, Kroutil W, Gruber-Woelfler H. A multistep (semi)-continuous biocatalytic setup for the production of polycaprolactone. REACT CHEM ENG 2024; 9:713-727. [PMID: 38433980 PMCID: PMC10903532 DOI: 10.1039/d3re00536d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/12/2023] [Indexed: 03/05/2024]
Abstract
Biocatalysis has gained increasing importance as an eco-friendly alternative for the production of bulk and fine chemicals. Within this paradigm, Baeyer Villiger monoxygenases (BVMOs) serve as enzymatic catalysts that provide a safe and sustainable route to the conventional synthesis of lactones, such as caprolactone, which is employed for the production of polycaprolactone (PCL), a biocompatible polymer for medicinal applications. In this work, we present a three-step, semi-continuous production of PCL using an entirely biocatalytic process, highlighting the merits of continuous manufacturing for enhancing biocatalysis. First, caprolactone is produced in batch from cyclohexanol using a coenzymatic cascade involving an alcohol dehydrogenase (ADH) and BVMO. Different process parameters and aeration modes were explored to optimize the cascade's productivity. Secondly, the continuous extraction of caprolactone into an organic solvent, needed for the polymerization step, was optimized. 3D-printed mixers were applied to enhance the mass transfer between the organic and the aqueous phases. Lastly, we investigated the ring-opening polymerization of caprolactone to PCL catalyzed by Candida antarctica lipase B (CAL-B), with a focus on eco-friendly solvents like cyclopentyl-methyl-ether (CPME). Space-time-yields up to 58.5 g L-1 h-1 were achieved with our overall setup. By optimizing the individual process steps, we present an efficient and sustainable pathway for PCL production.
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Affiliation(s)
- Alessia Valotta
- Institute of Process and Particle Engineering, Graz University of Technology Inffeldgasse 13 8010 Graz Austria
| | - Daniela Stelzer
- Institute of Process and Particle Engineering, Graz University of Technology Inffeldgasse 13 8010 Graz Austria
| | - Tamara Reiter
- Department of Chemistry, NAWI Graz, BioTechMed Graz, Field of Excellence BioHealth, University of Graz Heinrichstrasse 28 8010 Graz Austria
| | - Wolfgang Kroutil
- Department of Chemistry, NAWI Graz, BioTechMed Graz, Field of Excellence BioHealth, University of Graz Heinrichstrasse 28 8010 Graz Austria
| | - Heidrun Gruber-Woelfler
- Institute of Process and Particle Engineering, Graz University of Technology Inffeldgasse 13 8010 Graz Austria
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21
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Uboldi M, Chiappa A, Rossi M, Briatico-Vangosa F, Melocchi A, Zema L. Development of a multi-component gastroretentive expandable drug delivery system (GREDDS) for personalized administration of metformin. Expert Opin Drug Deliv 2024; 21:131-149. [PMID: 38088371 DOI: 10.1080/17425247.2023.2294884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 12/11/2023] [Indexed: 12/20/2023]
Abstract
OBJECTIVES Efficacy and compliance of type II diabetes treatment would greatly benefit from dosage forms providing controlled release of metformin in the upper gastrointestinal tract. In this respect, the feasibility of a new system ensuring stomach-retention and personalized release of this drug at its absorption window for multiple days was investigated. METHODS The system proposed comprised of a drug-containing core and a viscoelastic umbrella-like skeleton, which were manufactured by melt-casting and 3D printing. Prototypes, alone or upon assembly and insertion into commercially-available capsules, were characterized for key parameters: thermo-mechanical properties, accelerated stability, degradation, drug release, deployment performance, and resistance to simulated gastric contractions. RESULTS Each part of the system was successfully manufactured using purposely-selected materials and the performance of final prototypes matched the desired one. This included: i) easy folding of the skeleton against the core in the collapsed administered shape, ii) rapid recovery of the cumbersome configuration at the target site, even upon storage, and iii) prolonged release of metformin. CONCLUSIONS Composition, geometry, and performance of the system developed in this work were deemed acceptable for stomach-retention and prolonged as well as customizable release of metformin in its absorption window, laying promising bases for further development steps.
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Affiliation(s)
- Marco Uboldi
- Sezione di Tecnologia e Legislazione Farmaceutiche "Maria Edvige Sangalli", Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Arianna Chiappa
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Milano, Italy
| | - Margherita Rossi
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Milano, Italy
| | - Francesco Briatico-Vangosa
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Milano, Italy
| | - Alice Melocchi
- Sezione di Tecnologia e Legislazione Farmaceutiche "Maria Edvige Sangalli", Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Lucia Zema
- Sezione di Tecnologia e Legislazione Farmaceutiche "Maria Edvige Sangalli", Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
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22
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Loyo C, Cordoba A, Palza H, Canales D, Melo F, Vivanco JF, Baier RV, Millán C, Corrales T, Zapata PA. Effect of Gelatin Coating and GO Incorporation on the Properties and Degradability of Electrospun PCL Scaffolds for Bone Tissue Regeneration. Polymers (Basel) 2023; 16:129. [PMID: 38201794 PMCID: PMC10780398 DOI: 10.3390/polym16010129] [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: 12/01/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Polymer-based nanocomposites such as polycaprolactone/graphene oxide (PCL/GO) have emerged as alternatives for bone tissue engineering (BTE) applications. The objective of this research was to investigate the impact of a gelatin (Gt) coating on the degradability and different properties of PCL nanofibrous scaffolds fabricated by an electrospinning technique with 1 and 2 wt% GO. Uniform PCL/GO fibers were obtained with a beadless structure and rough surface. PCL/GO scaffolds exhibited an increase in their crystallization temperature (Tc), attributed to GO, which acted as a nucleation agent. Young's modulus increased by 32 and 63% for the incorporation of 1 and 2 wt% GO, respectively, in comparison with neat PCL. A homogeneous Gt coating was further applied to these fibers, with incorporations as high as 24.7 wt%. The introduction of the Gt coating improved the hydrophilicity and degradability of the scaffolds. Bioactivity analysis revealed that the hydroxyapatite crystals were deposited on the Gt-coated scaffolds, which made them different from their uncoated counterparts. Our results showed the synergic effect of Gt and GO in enhancing the multifunctionality of the PCL, in particular the degradability rate, bioactivity, and cell adhesion and proliferation of hGMSC cells, making it an interesting biomaterial for BTE.
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Affiliation(s)
- Carlos Loyo
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Grupo Polímeros, Santiago 9160000, Chile; (C.L.); (A.C.)
- School of Chemical Sciences and Engineering, Yachay Tech University, Hda. San José s/n y Proyecto Yachay, Urcuquí 100119, Ecuador
| | - Alexander Cordoba
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Grupo Polímeros, Santiago 9160000, Chile; (C.L.); (A.C.)
| | - Humberto Palza
- Departamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 851, Casilla 277, Santiago 8370459, Chile;
| | - Daniel Canales
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Santiago de Chile (USACH), Santiago 9160000, Chile;
| | - Francisco Melo
- Departamento de Física y Soft Matter Research Center (SMAT-C), Universidad de Santiago de Chile (USACH), Av. Victor Jara 3493, Santiago 9160000, Chile;
| | - Juan F. Vivanco
- Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Viña del Mar 2580335, Chile;
| | - Raúl Vallejos Baier
- Facultad Artes Liberales, Universidad Adolfo Ibáñez, Santiago 7911328, Chile
| | - Carola Millán
- Facultad Artes Liberales, Universidad Adolfo Ibáñez, Viña del Mar 2580335, Chile;
| | - Teresa Corrales
- Grupo de Fotoquímica, Departamento de Química Macromolecular Aplicada, Instituto de Ciencia y Tecnología de Polímeros, C.S.I.C., Juan de la Cierva 3, 28006 Madrid, Spain;
| | - Paula A. Zapata
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Grupo Polímeros, Santiago 9160000, Chile; (C.L.); (A.C.)
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23
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Jiang T, Han Y, Esmaeilizadeh N, Barkhordari A, Jalil AT, Saleh MM, Talaei S, Pilehvar Y. Epidural Administration of Curcumin-Loaded Polycaprolactone/Gelatin Electrospun Nanofibers for Extended Analgesia After Laminectomy in Rats. Appl Biochem Biotechnol 2023; 195:6557-6571. [PMID: 36881321 DOI: 10.1007/s12010-023-04342-y] [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] [Accepted: 01/10/2023] [Indexed: 03/08/2023]
Abstract
Several clinical studies have reported the analgesic effect of curcumin (Curc) in various situations such as rheumatoid arthritis, osteoarthritis, and postsurgical pain. Therefore, in this work, Curc-loaded electrospun nanofibers (NFs) are designed to evaluate their sustained release on analgesic effect duration in rats after epidural placement via repeated formalin and tail-flick tests. The Curc-loaded polycaprolactone/gelatin NFs (Curc-PCL/GEL NFs) are prepared through an electrospinning technique and introduced to the rat's epidural space after laminectomy. The physicochemical and morphology features of the prepared Curc-PCL/GEL NFs were characterized via FE-SEM, FTIR, and degradation assay. The in vitro and in vivo concentrations of Curc were measured to evaluate the analgesic efficacy of the drug-loaded NFs. Rat nociceptive responses are investigated through repeated formalin and tail-flick tests for 5 weeks after the placement of NFs. Curc had a sustained release from the NFs for 5 weeks, and its local pharmaceutical concentrations were much greater than plasma concentrations. Rat's pain scores in both early and late phases of the formalin test were remarkably decreased in the experimental period. Rat's tail-flick latency was remarkably enhanced and remained constant for up to 4 weeks. Our findings show that the Curc-PCL/GEL NFs can supply controlled release of Curc to induce extended analgesia after laminectomy.
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Affiliation(s)
- Tingting Jiang
- Department of Anesthesiology, 3201 Hospital, Hanzhong, 723000, China
| | - Yu Han
- Department of Anesthesiology, 3201 Hospital, Hanzhong, 723000, China
| | | | - Amin Barkhordari
- Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran
| | - Abduladheem Turki Jalil
- Medical Laboratory Techniques Department, Al-Mustaqbal University College, Babylon, Hilla, 51001, Iraq
| | - Marwan Mahmood Saleh
- Department of Biophysics, College of Applied Sciences, University of Anbar, Anbar, Iraq
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Sona Talaei
- Department of Basic Sciences, Maragheh University of Medical Sciences, Maragheh, Iran
| | - Younes Pilehvar
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Research Institute, Urmia University of Medical Sciences, Urmia, Iran.
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24
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Goreninskii S, Volokhova A, Frolova A, Buldakov M, Cherdyntseva N, Choynzonov E, Sudarev E, Filimonov V, Tverdokhlebov S, Bolbasov E. Prolonged and Controllable Release of Doxorubicin Hydrochloride from the Composite Electrospun Poly(ε-Caprolactone)/Polyvinylpyrrolidone Scaffolds. J Pharm Sci 2023; 112:2752-2755. [PMID: 37673173 DOI: 10.1016/j.xphs.2023.08.025] [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: 05/28/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/08/2023]
Abstract
Burst release, typical for the drug-loaded electrospun poly(ε-caprolactone) (PCL) scaffolds is unfavorable in case of cytostatics due to the toxic levels reached during the initial implantation period. In the present short communication, we report an unexpected ability of the composite scaffolds made of PCL and water-soluble polyvinylpyrrolidone (PVP) to provide long-term release of widely used anti-cancer drug doxorubicin hydrochloride (DOX-HCl). That effect was observed for electrospun DOX-HCl-loaded composite scaffolds based on PCL and PVP with various mass ratios (100/0, 95/5, 90/10, 75/25 and 50/50). After the morphology and water contact angle studies, it was concluded that PVP content has no effect on the average fiber diameter, while PVP content higher 10 wt. % changes the hydrophobic character of the scaffolds surface (water contact angle of 123.9 ± 3.5°) to superhydrophilic (water contact angle of 0°). Despite the dramatic change in water wettability, by high performance liquid chromatography (HPLC), it was revealed that the PVP content in the scaffolds reduces the DOX-HCl release rate under short (first hours) and long-term (during 1 month) exposure to phosphate buffer saline (PBS). These results are in good agreement with in vitro studies, in which the viability of HeLa cervical cancer cells was higher after 24 h of culture with scaffolds with high PVP content.
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Affiliation(s)
- Semen Goreninskii
- Onconanotheranostics laboratory, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Science, Moscow, Russian Federation; B.P. Veinberg Research and Educational Center, Tomsk Polytechnic University, Tomsk, Russian Federation
| | - Apollinariya Volokhova
- B.P. Veinberg Research and Educational Center, Tomsk Polytechnic University, Tomsk, Russian Federation; Department of Translational Cellular and Molecular Biomedicine, Chemical Faculty, National Research Tomsk State University, Russian Federation
| | - Anastasia Frolova
- Biological Institute, Tomsk State University, Tomsk, Russian Federation; Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russian Federation
| | - Mikhail Buldakov
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russian Federation
| | - Nadezhda Cherdyntseva
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russian Federation
| | - Evgeny Choynzonov
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russian Federation
| | - Evgeny Sudarev
- N.M. Kizhner Research and Educational Center, Tomsk Polytechnic University, Tomsk, Russian Federation
| | - Victor Filimonov
- N.M. Kizhner Research and Educational Center, Tomsk Polytechnic University, Tomsk, Russian Federation
| | - Sergei Tverdokhlebov
- B.P. Veinberg Research and Educational Center, Tomsk Polytechnic University, Tomsk, Russian Federation.
| | - Evgeny Bolbasov
- B.P. Veinberg Research and Educational Center, Tomsk Polytechnic University, Tomsk, Russian Federation; V.E. Zuev Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russian Federation.
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25
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Litowczenko J, Wychowaniec JK, Załęski K, Marczak Ł, Edwards-Gayle CJC, Tadyszak K, Maciejewska BM. Micro/nano-patterns for enhancing differentiation of human neural stem cells and fabrication of nerve conduits via soft lithography and 3D printing. BIOMATERIALS ADVANCES 2023; 154:213653. [PMID: 37862812 DOI: 10.1016/j.bioadv.2023.213653] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/02/2023] [Accepted: 10/06/2023] [Indexed: 10/22/2023]
Abstract
Topographical cues on materials can manipulate cellular fate, particularly for neural cells that respond well to such cues. Utilizing biomaterial surfaces with topographical features can effectively influence neuronal differentiation and promote neurite outgrowth. This is crucial for improving the regeneration of damaged neural tissue after injury. Here, we utilized groove patterns to create neural conduits that promote neural differentiation and axonal growth. We investigated the differentiation of human neural stem cells (NSCs) on silicon dioxide groove patterns with varying height-to-width/spacing ratios. We hypothesize that NSCs can sense the microgrooves with nanoscale depth on different aspect ratio substrates and exhibit different morphologies and differentiation fate. A comprehensive approach was employed, analyzing cell morphology, neurite length, and cell-specific markers. These aspects provided insights into the behavior of the investigated NSCs and their response to the topographical cues. Three groove-pattern models were designed with varying height-to-width/spacing ratios of 80, 42, and 30 for groove pattern widths of 1 μm, 5 μm, and 10 μm and nanoheights of 80 nm, 210 nm, and 280 nm. Smaller groove patterns led to longer neurites and more effective differentiation towards neurons, whereas larger patterns promoted multidimensional differentiation towards both neurons and glia. We transferred these cues onto patterned polycaprolactone (PCL) and PCL-graphene oxide (PCL-GO) composite 'stamps' using simple soft lithography and reproducible extrusion 3D printing methods. The patterned scaffolds elicited a response from NSCs comparable to that of silicon dioxide groove patterns. The smallest pattern stimulated the highest neurite outgrowth, while the middle-sized grooves of PCL-GO induced effective synaptogenesis. We demonstrated the potential for such structures to be wrapped into tubes and used as grafts for peripheral nerve regeneration. Grooved PCL and PCL-GO conduits could be a promising alternative to nerve grafting.
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Affiliation(s)
- Jagoda Litowczenko
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, PL61614 Poznań, Poland.
| | - Jacek K Wychowaniec
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, PL61614 Poznań, Poland; AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland
| | - Karol Załęski
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, PL61614 Poznań, Poland
| | - Łukasz Marczak
- European Centre for Bioinformatics and Genomics, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland
| | | | - Krzysztof Tadyszak
- Institute of Macromolecular Chemistry, CAS, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Barbara M Maciejewska
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, PL61614 Poznań, Poland
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26
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Dziemidowicz K, Kellaway SC, Guillemot-Legris O, Matar O, Trindade RP, Roberton VH, Rayner MLD, Williams GR, Phillips JB. Development of ibuprofen-loaded electrospun materials suitable for surgical implantation in peripheral nerve injury. BIOMATERIALS ADVANCES 2023; 154:213623. [PMID: 37837905 DOI: 10.1016/j.bioadv.2023.213623] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 08/28/2023] [Accepted: 09/08/2023] [Indexed: 10/16/2023]
Abstract
The development of nerve wraps for use in the repair of peripheral nerves has shown promise over recent years. A pharmacological effect to improve regeneration may be achieved by loading such materials with therapeutic agents, for example ibuprofen, a non-steroidal anti-inflammatory drug with neuroregenerative properties. In this study, four commercially available polymers (polylactic acid (PLA), polycaprolactone (PCL) and two co-polymers containing different ratios of PLA to PCL) were used to fabricate ibuprofen-loaded nerve wraps using blend electrospinning. In vitro surgical handling experiments identified a formulation containing a PLA/PCL 70/30 molar ratio co-polymer as the most suitable for in vivo implantation. In a rat model, ibuprofen released from electrospun materials significantly improved the rate of axonal growth and sensory recovery over a 21-day recovery period following a sciatic nerve crush. Furthermore, RT-qPCR analysis of nerve segments revealed that the anti-inflammatory and neurotrophic effects of ibuprofen may still be observed 21 days after implantation. This suggests that the formulation developed in this work could have potential to improve nerve regeneration in vivo.
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Affiliation(s)
- Karolina Dziemidowicz
- Centre for Nerve Engineering, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland; Department of Pharmacology, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland; Department of Pharmaceutics, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland.
| | - Simon C Kellaway
- Centre for Nerve Engineering, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland; Department of Pharmacology, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland
| | - Owein Guillemot-Legris
- Centre for Nerve Engineering, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland; Department of Pharmacology, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland
| | - Omar Matar
- Centre for Nerve Engineering, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland; Department of Pharmacology, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland
| | - Rita Pereira Trindade
- Centre for Nerve Engineering, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland; Department of Pharmacology, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland
| | - Victoria H Roberton
- Centre for Nerve Engineering, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland; Department of Pharmacology, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland
| | - Melissa L D Rayner
- Centre for Nerve Engineering, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland; Department of Pharmacology, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland
| | - Gareth R Williams
- Department of Pharmaceutics, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland
| | - James B Phillips
- Centre for Nerve Engineering, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland; Department of Pharmacology, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom of Great Britain and Northern Ireland
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27
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Šišková B, Kožár M, Staroňová R, Shepa I, Hajdučková V, Hudecová P, Kaduková M, Schnitzer M. Antibacterial Effect and Therapy of Chronic Skin Defects Using the Composite Bioscaffold Polycaprolactone/GelitaSpon/Povidone-Iodine in Domestic Dogs. Polymers (Basel) 2023; 15:4201. [PMID: 37959881 PMCID: PMC10647826 DOI: 10.3390/polym15214201] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 11/15/2023] Open
Abstract
Chronic wounds and the failure of conventional treatment are relatively common in veterinary medicine. Recently, there has been a growing interest in alternative therapeutic approaches and the utilization of biodegradable materials. Their potential application in wound therapy may offer a novel and more suitable option compared to conventional treatment methods. Biodegradable materials can be classified into two main categories: natural, synthetic, and a combination of both, which have the potential to have synergistically enhanced properties. In this study, four domestic dogs with clinical symptoms of chronic wounds were enrolled. These wounds underwent treatment utilizing a novel biodegradable composite material composed of gelatin sponge combined with two electrospun layers of polycaprolactone (PCL) along with polyvinylpyrrolidone (PVP) fibers containing povidone-iodine complex (PVP-I). The initial phase of the study was dedicated to evaluating the antibacterial properties of iodine against Staphylococcus aureus and Escherichia coli. On average, wound healing in domestic dogs took 22 days from the initial treatment, and iodine concentrations demonstrated a significant antibacterial effect against Escherichia coli and Staphylococcus aureus. Based on the favorable outcomes observed in wound management, we believe that the utilization of a blend of natural and synthetic biodegradable materials holds promise as an effective wound therapy option.
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Affiliation(s)
- Barbora Šišková
- Small Animal Clinic, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (B.Š.); (R.S.)
| | - Martin Kožár
- Small Animal Clinic, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (B.Š.); (R.S.)
| | - Radka Staroňová
- Small Animal Clinic, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (B.Š.); (R.S.)
| | - Ivan Shepa
- Institute of Material Research, Slovak Academy of Sciences, 040 01 Košice, Slovakia;
| | - Vanda Hajdučková
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (V.H.); (P.H.)
| | - Patrícia Hudecová
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (V.H.); (P.H.)
| | - Michaela Kaduková
- Department of Parasitology, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia;
| | - Marek Schnitzer
- Faculty of Mechanical Engineering, Department of Biomedical Engineering and Measurement, Technical University of Košice, Letná 9, 042 00 Košice, Slovakia;
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28
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Castanha RF, Pereira ADES, Villarreal GPU, Vallim JH, Pertrini FS, Jonsson CM, Fraceto LF, Castro VLSSD. Ecotoxicity studies of two atrazine nanoformulations: From the evaluation of stability in media to the effects on aquatic organisms. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 335:122235. [PMID: 37543073 DOI: 10.1016/j.envpol.2023.122235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 08/07/2023]
Abstract
In the field of agriculture, nanopesticides have been developed as an alternative to the conventional pesticides, being more efficient for pest control. However, before their widespread application it is essential to evaluate their safe application and no environmental impacts. In this paper, we evaluated the toxicological effects of two kinds of atrazine nanoformulations (ATZ NPs) in different biological models (Raphidocelis subcapitata, Danio rerio, Lemna minor, Artemia salina, Lactuca sativa and Daphnia magna) and compared the results with nanoparticle stability over time and the presence of natural organic matter (NOM). The systems showed different characteristics for Zein (ATZ NPZ) (184 ± 2 nm with a PDI of 0.28 ± 0.04 and zeta potential of (30.4 ± 0.05 mV) and poly(epsilon-caprolactone (ATZ PCL) (192 ± 3 nm, polydispersity (PDI) of 0.28 ± 0.28 and zeta potential of -18.8 ± 1.2 mV) nanoparticles. The results showed that there is a correlation between nanoparticles stability and the presence of NOM in the medium and Environmental Concentrations (EC) values. The stability loss or an increase in nanoparticle size result in low toxicity for R. subcapitata and L. minor. For D. magna and D. rerio, the presence of NOM in the medium reduces the ecotoxic effects for ATZ NPZ nanoparticles, but not for ATZ NPs, showing that the nanoparticles characteristics and their interaction with NOM can modulate toxic effects. Nanoparticle stability throughout the evaluation must be considered and become an integral part of toxicity protocol guidelines for nanopesticides, to ensure test quality and authentic results regarding nanopesticide effects in target and non-target organisms.
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Affiliation(s)
| | - Anderson do Espírito Santo Pereira
- Department of Environmental Engineering, Institute of Science and Technology of Sorocaba (ICTS), São Paulo State University (Unesp), Avenida Três de Março, 511, 18087-180, Sorocaba, São Paulo State, Brazil
| | - Gabriela Patricia Unigarro Villarreal
- Department of Environmental Engineering, Institute of Science and Technology of Sorocaba (ICTS), São Paulo State University (Unesp), Avenida Três de Março, 511, 18087-180, Sorocaba, São Paulo State, Brazil
| | - José Henrique Vallim
- Embrapa Environment, Rod SP 340, km 127.5, 13918-110, Jaguariúna, São Paulo State, Brazil
| | - Fernanda Sana Pertrini
- Department of Environmental Engineering, Institute of Science and Technology of Sorocaba (ICTS), São Paulo State University (Unesp), Avenida Três de Março, 511, 18087-180, Sorocaba, São Paulo State, Brazil
| | - Claudio Martín Jonsson
- Embrapa Environment, Rod SP 340, km 127.5, 13918-110, Jaguariúna, São Paulo State, Brazil
| | - Leonardo Fernandes Fraceto
- Department of Environmental Engineering, Institute of Science and Technology of Sorocaba (ICTS), São Paulo State University (Unesp), Avenida Três de Março, 511, 18087-180, Sorocaba, São Paulo State, Brazil
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Ritzau-Reid KI, Callens SJP, Xie R, Cihova M, Reumann D, Grigsby CL, Prados-Martin L, Wang R, Moore AC, Armstrong JPK, Knoblich JA, Stevens MM. Microfibrous Scaffolds Guide Stem Cell Lumenogenesis and Brain Organoid Engineering. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300305. [PMID: 37572376 DOI: 10.1002/adma.202300305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 07/21/2023] [Indexed: 08/14/2023]
Abstract
3D organoids are widely used as tractable in vitro models capable of elucidating aspects of human development and disease. However, the manual and low-throughput culture methods, coupled with a low reproducibility and geometric heterogeneity, restrict the scope and application of organoid research. Combining expertise from stem cell biology and bioengineering offers a promising approach to address some of these limitations. Here, melt electrospinning writing is used to generate tuneable grid scaffolds that can guide the self-organization of pluripotent stem cells into patterned arrays of embryoid bodies. Grid geometry is shown to be a key determinant of stem cell self-organization, guiding the position and size of emerging lumens via curvature-controlled tissue growth. Two distinct methods for culturing scaffold-grown embryoid bodies into either interconnected or spatially discrete cerebral organoids are reported. These scaffolds provide a high-throughput method to generate, culture, and analyze large numbers of organoids, substantially reducing the time investment and manual labor involved in conventional methods of organoid culture. It is anticipated that this methodological development will open up new opportunities for guiding pluripotent stem cell culture, studying lumenogenesis, and generating large numbers of uniform organoids for high-throughput screening.
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Affiliation(s)
- Kaja I Ritzau-Reid
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - Sebastien J P Callens
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - Ruoxiao Xie
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - Martina Cihova
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - Daniel Reumann
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
- Institute of Molecular Biotechnology (IMBA) of the Austrian Academy of Sciences, Vienna BioCenter (VBC), Vienna, 1030, Austria
| | - Christopher L Grigsby
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Lino Prados-Martin
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - Richard Wang
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - Axel C Moore
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - James P K Armstrong
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
- Department of Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, BS1 3NY, UK
| | - Juergen A Knoblich
- Institute of Molecular Biotechnology (IMBA) of the Austrian Academy of Sciences, Vienna BioCenter (VBC), Vienna, 1030, Austria
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
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30
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Crouch DJ, Sheridan CM, Behnsen JG, D’Sa RA, Bosworth LA. Cryo-Electrospinning Generates Highly Porous Fiber Scaffolds Which Improves Trabecular Meshwork Cell Infiltration. J Funct Biomater 2023; 14:490. [PMID: 37888155 PMCID: PMC10607045 DOI: 10.3390/jfb14100490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/15/2023] [Accepted: 09/21/2023] [Indexed: 10/28/2023] Open
Abstract
Human trabecular meshwork is a sieve-like tissue with large pores, which plays a vital role in aqueous humor outflow. Dysfunction of this tissue can occur, which leads to glaucoma and permanent vision loss. Replacement of trabecular meshwork with a tissue-engineered device is the ultimate objective. This study aimed to create a biomimetic structure of trabecular meshwork using electrospinning. Conventional electrospinning was compared to cryogenic electrospinning, the latter being an adaptation of conventional electrospinning whereby dry ice is incorporated in the fiber collector system. The dry ice causes ice crystals to form in-between the fibers, increasing the inter-fiber spacing, which is retained following sublimation. Structural characterization demonstrated cryo-scaffolds to have closer recapitulation of the trabecular meshwork, in terms of pore size, porosity, and thickness. The attachment of a healthy, human trabecular meshwork cell line (NTM5) to the scaffold was not influenced by the fabrication method. The main objective was to assess cell infiltration. Cryo-scaffolds supported cell penetration deep within their structure after seven days, whereas cells remained on the outer surface for conventional scaffolds. This study demonstrates the suitability of cryogenic electrospinning for the close recapitulation of trabecular meshwork and its potential as a 3D in vitro model and, in time, a tissue-engineered device.
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Affiliation(s)
- Devon J. Crouch
- Department of Eye and Vision Science, Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L7 8TX, UK; (D.J.C.); (C.M.S.)
| | - Carl M. Sheridan
- Department of Eye and Vision Science, Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L7 8TX, UK; (D.J.C.); (C.M.S.)
| | - Julia G. Behnsen
- Department of Mechanical, Materials, and Aerospace Engineering, University of Liverpool, Liverpool L69 6GB, UK;
| | - Raechelle A. D’Sa
- School of Engineering, University of Liverpool, Liverpool L69 3GH, UK;
| | - Lucy A. Bosworth
- Department of Eye and Vision Science, Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L7 8TX, UK; (D.J.C.); (C.M.S.)
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31
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Sedky NK, Arafa KK, Abdelhady MMM, Issa MY, Abdel-Kader NM, Mahdy NK, Mokhtar FA, Alfaifi MY, Fahmy SA. Nedaplatin/ Peganum harmala Alkaloids Co-Loaded Electrospun, Implantable Nanofibers: A Chemopreventive Nano-Delivery System for Treating and Preventing Breast Cancer Recurrence after Tumorectomy. Pharmaceutics 2023; 15:2367. [PMID: 37896127 PMCID: PMC10609766 DOI: 10.3390/pharmaceutics15102367] [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: 08/11/2023] [Revised: 09/15/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open
Abstract
Currently, the main pillars in treating breast cancer involve tumorectomy pursued by hormonal, radio, or chemotherapies. Nonetheless, these approaches exhibit severe adverse effects and might suffer from tumor recurrence. Therefore, there is a considerable demand to fabricate an innovative controlled-release nano-delivery system to be implanted after tumor surgical removal to guard against cancer recurrence. In addition, combining platinum-based drugs with phytochemicals is a promising approach to improving the anticancer activity of the chemotherapeutics against tumor cells while minimizing their systemic effects. This study designed polycaprolactone (PCL)-based electrospun nanofiber mats encapsulating nedaplatin (N) and Peganum harmala alkaloid-rich fraction (L). In addition to physicochemical characterization, including average diameters, morphological features, degradation study, thermal stability, and release kinetics study, the formulated nanofibers were assessed in terms of cytotoxicity, where they demonstrated potentiated effects and higher selectivity towards breast cancer cells. The dual-loaded nanofiber mats (N + L@PCL) demonstrated the highest antiproliferative effects against MCF-7 cells with a recorded IC50 of 3.21 µg/mL, as well as the topmost achieved selectivity index (20.45) towards cancer cells amongst all the tested agents (N, L, N@PCL, and L@PCL). This indicates that the dual-loaded nanofiber excelled at conserving the normal breast epithelial cells (MCF-10A). The combined therapy, N + L@PCL treatment, resulted in a significantly higher percent cell population in the late apoptosis and necrosis quartiles as compared to all other treatment groups (p-value of ≤0.001). Moreover, this study of cell cycle kinetics revealed potentiated effects of the dual-loaded nanofiber (N + L@PCL) at trapping more than 90% of cells in the sub-G1 phase and reducing the number of cells undergoing DNA synthesis in the S-phase by 15-fold as compared to nontreated cells; hence, causing cessation of the cell cycle and confirming the apoptosis assay results. As such, our findings suggest the potential use of the designed nanofiber mats as perfect implants to prevent tumor recurrence after tumorectomy.
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Affiliation(s)
- Nada K. Sedky
- Department of Biochemistry, School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, R5 New Garden City, New Administrative Capital, Cairo 11835, Egypt
| | - Kholoud K. Arafa
- Drug Design and Discovery Lab, Zewail City for Science, Technology and Innovation, Cairo 12578, Egypt
| | - Manal M. M. Abdelhady
- Clinical Pharmacy Department, Faculty of Pharmacy, Badr University, Cairo 11829, Egypt
| | - Marwa Y. Issa
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo 11562, Egypt
| | - Nour M. Abdel-Kader
- Department of Biochemistry, School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, R5 New Garden City, New Administrative Capital, Cairo 11835, Egypt
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| | - Noha Khalil Mahdy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo 11562, Egypt
| | - Fatma A. Mokhtar
- Department of Pharmacognosy, Faculty of Pharmacy, El Saleheya El Gadida University, El Saleheya El Gadida 44813, Egypt
| | - Mohammad Y. Alfaifi
- Biology Department, Faculty of Science, King Khalid University, Abha 9004, Saudi Arabia
| | - Sherif Ashraf Fahmy
- Department of Chemistry, School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, R5 New Garden City, New Capital, Cairo 11835, Egypt
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32
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Plocon C, Evanghelidis A, Enculescu M, Isopencu G, Oprea O, Bacalum M, Raileanu M, Jinga S, Busuioc C. Development and Characterization of Electrospun Composites Built on Polycaprolactone and Cerium-Containing Phases. Int J Mol Sci 2023; 24:14201. [PMID: 37762504 PMCID: PMC10532413 DOI: 10.3390/ijms241814201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
The current study reports on the fabrication of composite scaffolds based on polycaprolactone (PCL) and cerium (Ce)-containing powders, followed by their characterization from compositional, structural, morphological, optical and biological points of view. First, CeO2, Ce-doped calcium phosphates and Ce-substituted bioglass were synthesized by wet-chemistry methods (precipitation/coprecipitation and sol-gel) and subsequently loaded on PCL fibres processed by electrospinning. The powders were proven to be nanometric or micrometric, while the investigation of their phase composition showed that Ce was present as a dopant within the crystal lattice of the obtained calcium phosphates or as crystalline domains inside the glassy matrix. The best bioactivity was attained in the case of Ce-containing bioglass, while the most pronounced antibacterial effect was visible for Ce-doped calcium phosphates calcined at a lower temperature. The scaffolds were composed of either dimensionally homogeneous fibres or mixtures of fibres with a wide size distribution and beads of different shapes. In most cases, the increase in polymer concentration in the precursor solution ensured the achievement of more ordered fibre mats. The immersion in SBF for 28 days triggered an incipient degradation of PCL, evidenced mostly through cracks and gaps. In terms of biological properties, the composite scaffolds displayed a very good biocompatibility when tested with human osteoblast cells, with a superior response for the samples consisting of the polymer and Ce-doped calcium phosphates.
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Affiliation(s)
- Cristiana Plocon
- University Politehnica of Bucharest, RO-060042 Bucharest, Romania; (C.P.); (G.I.); (O.O.); (S.J.)
| | | | - Monica Enculescu
- National Institute for Materials Physics, RO-077125 Magurele, Romania; (A.E.); (M.E.)
| | - Gabriela Isopencu
- University Politehnica of Bucharest, RO-060042 Bucharest, Romania; (C.P.); (G.I.); (O.O.); (S.J.)
| | - Ovidiu Oprea
- University Politehnica of Bucharest, RO-060042 Bucharest, Romania; (C.P.); (G.I.); (O.O.); (S.J.)
| | - Mihaela Bacalum
- National Institute of Physics and Nuclear Engineering, RO-077125 Magurele, Romania; (M.B.); (M.R.)
| | - Mina Raileanu
- National Institute of Physics and Nuclear Engineering, RO-077125 Magurele, Romania; (M.B.); (M.R.)
| | - Sorin Jinga
- University Politehnica of Bucharest, RO-060042 Bucharest, Romania; (C.P.); (G.I.); (O.O.); (S.J.)
| | - Cristina Busuioc
- University Politehnica of Bucharest, RO-060042 Bucharest, Romania; (C.P.); (G.I.); (O.O.); (S.J.)
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33
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da Silva VA, Bobotis BC, Correia FF, Lima-Vasconcellos TH, Chiarantin GMD, De La Vega L, Lombello CB, Willerth SM, Malmonge SM, Paschon V, Kihara AH. The Impact of Biomaterial Surface Properties on Engineering Neural Tissue for Spinal Cord Regeneration. Int J Mol Sci 2023; 24:13642. [PMID: 37686446 PMCID: PMC10488158 DOI: 10.3390/ijms241713642] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 08/24/2023] [Accepted: 08/26/2023] [Indexed: 09/10/2023] Open
Abstract
Tissue engineering for spinal cord injury (SCI) remains a complex and challenging task. Biomaterial scaffolds have been suggested as a potential solution for supporting cell survival and differentiation at the injury site. However, different biomaterials display multiple properties that significantly impact neural tissue at a cellular level. Here, we evaluated the behavior of different cell lines seeded on chitosan (CHI), poly (ε-caprolactone) (PCL), and poly (L-lactic acid) (PLLA) scaffolds. We demonstrated that the surface properties of a material play a crucial role in cell morphology and differentiation. While the direct contact of a polymer with the cells did not cause cytotoxicity or inhibit the spread of neural progenitor cells derived from neurospheres (NPCdn), neonatal rat spinal cord cells (SCC) and NPCdn only attached and matured on PCL and PLLA surfaces. Scanning electron microscopy and computational analysis suggested that cells attached to the material's surface emerged into distinct morphological populations. Flow cytometry revealed a higher differentiation of neural progenitor cells derived from human induced pluripotent stem cells (hiPSC-NPC) into glial cells on all biomaterials. Immunofluorescence assays demonstrated that PCL and PLLA guided neuronal differentiation and network development in SCC. Our data emphasize the importance of selecting appropriate biomaterials for tissue engineering in SCI treatment.
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Affiliation(s)
- Victor A. da Silva
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Bianca C. Bobotis
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Felipe F. Correia
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Théo H. Lima-Vasconcellos
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Gabrielly M. D. Chiarantin
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Laura De La Vega
- Department of Mechanical Engineering, University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Christiane B. Lombello
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC, São Bernardo do Campo 09606-070, SP, Brazil
| | - Stephanie M. Willerth
- Department of Mechanical Engineering, University of Victoria, Victoria, BC V8W 2Y2, Canada
- Division of Medical Sciences, University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Sônia M. Malmonge
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC, São Bernardo do Campo 09606-070, SP, Brazil
| | - Vera Paschon
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Alexandre H. Kihara
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
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Andrew LJ, Kly S, Moloney EG, Moffitt MG. Effects of Microfluidic Shear on the Plasmid DNA Structure: Implications for Polymeric Gene Delivery Vectors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:11545-11555. [PMID: 37552625 DOI: 10.1021/acs.langmuir.3c00934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Microfluidic manufacturing of advanced gene delivery vectors necessitates consideration of the effects of microfluidic shear forces on the structural integrity of plasmid DNA (pDNA). In this paper, we expose pDNA to variable shear forces in a two-phase, gas-liquid microfluidic reactor and apply gel electrophoresis to analyze the products of on-chip shear-induced degradation. The effects of shear rate, solvent environment, pDNA size, and copolymer complexation on shear-induced degradation are investigated. We find that small naked pDNA (pUC18, 2.7 kb) exhibits shear rate-dependent shear degradation in the microfluidic channels in a mixed organic solvent (dioxane/water/acetic acid; 90/10/<0.1 w/w/w), with the extents of both supercoil isoform relaxation and complete fragmentation increasing as the maximum shear rates increase from 4 × 105 to 2 × 106 s-1. However, over the same range of shear rates, the same pDNA sample shows no evidence of microfluidic shear-induced degradation in a pure aqueous environment. Quiescent control experiments in the same mixed organic solvent prove that a combination of solvent and shear forces is involved in the observed shear-induced degradation. Furthermore, we show that shear degradation effects in mixed organic solvents can be significantly attenuated by complexation of pDNA with the block copolymer polycaprolactone-block-poly(2-vinylpyridine) prior to exposure to microfluidic shear. Finally, we demonstrate that medium (pDSK519, 8.1 kb) and large (pRK290, 20 kb) naked pDNA are more sensitive to shear-induced microfluidic degradation in the mixed organic solvent environment than small pDNA, with both plasmids showing complete fragmentation even at the lowest shear rate, although we found no evidence of shear-induced damage in water for the largest investigated naked pDNA even at the highest flow rate. The resulting understanding of the interplay of the solvent and shear effects during microfluidic processing should inform microfluidic manufacturing routes to new gene therapy formulations.
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Affiliation(s)
- Lucas J Andrew
- Department of Chemistry, University of Victoria, P.O. Box 1700 Stn CSC, Victoria, BC V8W 2Y2, Canada
| | - Sundiata Kly
- Department of Chemistry, University of Victoria, P.O. Box 1700 Stn CSC, Victoria, BC V8W 2Y2, Canada
| | - Erin G Moloney
- Department of Chemistry, University of Victoria, P.O. Box 1700 Stn CSC, Victoria, BC V8W 2Y2, Canada
| | - Matthew G Moffitt
- Department of Chemistry, University of Victoria, P.O. Box 1700 Stn CSC, Victoria, BC V8W 2Y2, Canada
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Tsung TH, Tsai YC, Lee HP, Chen YH, Lu DW. Biodegradable Polymer-Based Drug-Delivery Systems for Ocular Diseases. Int J Mol Sci 2023; 24:12976. [PMID: 37629157 PMCID: PMC10455181 DOI: 10.3390/ijms241612976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Ocular drug delivery is a challenging field due to the unique anatomical and physiological barriers of the eye. Biodegradable polymers have emerged as promising tools for efficient and controlled drug delivery in ocular diseases. This review provides an overview of biodegradable polymer-based drug-delivery systems for ocular diseases with emphasis on the potential for biodegradable polymers to overcome the limitations of conventional methods, allowing for sustained drug release, improved bioavailability, and targeted therapy. Natural and synthetic polymers are both discussed, highlighting their biodegradability and biocompatibility. Various formulation strategies, such as nanoparticles, hydrogels, and microemulsions, among others, are investigated, detailing preparation methods, drug encapsulation, and clinical applications. The focus is on anterior and posterior segment drug delivery, covering glaucoma, corneal disorders, ocular inflammation, retinal diseases, age-related macular degeneration, and diabetic retinopathy. Safety considerations, such as biocompatibility evaluations, in vivo toxicity studies, and clinical safety, are addressed. Future perspectives encompass advancements, regulatory considerations, and clinical translation challenges. In conclusion, biodegradable polymers offer potential for efficient and targeted ocular drug delivery, improving therapeutic outcomes while reducing side effects. Further research is needed to optimize formulation strategies and address regulatory requirements for successful clinical implementation.
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Affiliation(s)
- Ta-Hsin Tsung
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (T.-H.T.); (Y.-C.T.); (H.-P.L.); (Y.-H.C.)
| | - Yu-Chien Tsai
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (T.-H.T.); (Y.-C.T.); (H.-P.L.); (Y.-H.C.)
- Department of Ophthalmology, Taoyuan Armed Forces General Hospital, Taoyuan 325, Taiwan
| | - Hsin-Pei Lee
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (T.-H.T.); (Y.-C.T.); (H.-P.L.); (Y.-H.C.)
| | - Yi-Hao Chen
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (T.-H.T.); (Y.-C.T.); (H.-P.L.); (Y.-H.C.)
| | - Da-Wen Lu
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (T.-H.T.); (Y.-C.T.); (H.-P.L.); (Y.-H.C.)
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36
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Delgado-Rivera R, García-Rodríguez W, López L, Cunci L, Resto PJ, Domenech M. PCL/PEO Polymer Membrane Prevents Biofouling in Wearable Detection Sensors. MEMBRANES 2023; 13:728. [PMID: 37623789 PMCID: PMC10456225 DOI: 10.3390/membranes13080728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 07/27/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
Technological advances in biosensing offer extraordinary opportunities to transfer technologies from a laboratory setting to clinical point-of-care applications. Recent developments in the field have focused on electrochemical and optical biosensing platforms. Unfortunately, these platforms offer relatively poor sensitivity for most of the clinically relevant targets that can be measured on the skin. In addition, the non-specific adsorption of biomolecules (biofouling) has proven to be a limiting factor compromising the longevity and performance of these detection systems. Research from our laboratory seeks to capitalize on analyte selective properties of biomaterials to achieve enhanced analyte adsorption, enrichment, and detection. Our goal is to develop a functional membrane integrated into a microfluidic sampling interface and an electrochemical sensing unit. The membrane was manufactured from a blend of Polycaprolactone (PCL) and Polyethylene oxide (PEO) through a solvent casting evaporation method. A microfluidic flow cell was developed with a micropore array that allows liquid to exit from all pores simultaneously, thereby imitating human perspiration. The electrochemical sensing unit consisted of planar gold electrodes for the monitoring of nonspecific adsorption of proteins utilizing Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS). The solvent casting evaporation technique proved to be an effective method to produce membranes with the desired physical properties (surface properties and wettability profile) and a highly porous and interconnected structure. Permeability data from the membrane sandwiched in the flow cell showed excellent permeation and media transfer efficiency with uniform pore activation for both active and passive sweat rates. Biofouling experiments exhibited a decrease in the extent of biofouling of electrodes protected with the PCL/PEO membrane, corroborating the capacity of our material to mitigate the effects of biofouling.
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Affiliation(s)
- Roberto Delgado-Rivera
- Department of Chemical Engineering, University of Puerto Rico, Mayagüez Campus, Mayagüez, PR 00680, USA;
| | - William García-Rodríguez
- Department of Mechanical Engineering, University of Puerto Rico, Mayagüez Campus, Mayagüez, PR 00680, USA; (W.G.-R.); (P.J.R.)
| | - Luis López
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, PR 00925, USA; (L.L.); (L.C.)
| | - Lisandro Cunci
- Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, PR 00925, USA; (L.L.); (L.C.)
| | - Pedro J. Resto
- Department of Mechanical Engineering, University of Puerto Rico, Mayagüez Campus, Mayagüez, PR 00680, USA; (W.G.-R.); (P.J.R.)
| | - Maribella Domenech
- Department of Chemical Engineering, University of Puerto Rico, Mayagüez Campus, Mayagüez, PR 00680, USA;
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37
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Łopuszyńska N, Węglarz WP. Contrasting Properties of Polymeric Nanocarriers for MRI-Guided Drug Delivery. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2163. [PMID: 37570481 PMCID: PMC10420849 DOI: 10.3390/nano13152163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/20/2023] [Accepted: 07/20/2023] [Indexed: 08/13/2023]
Abstract
Poor pharmacokinetics and low aqueous solubility combined with rapid clearance from the circulation of drugs result in their limited effectiveness and generally high therapeutic doses. The use of nanocarriers for drug delivery can prevent the rapid degradation of the drug, leading to its increased half-life. It can also improve the solubility and stability of drugs, advance their distribution and targeting, ensure a sustained release, and reduce drug resistance by delivering multiple therapeutic agents simultaneously. Furthermore, nanotechnology enables the combination of therapeutics with biomedical imaging agents and other treatment modalities to overcome the challenges of disease diagnosis and therapy. Such an approach is referred to as "theranostics" and aims to offer a more patient-specific approach through the observation of the distribution of contrast agents that are linked to therapeutics. The purpose of this paper is to present the recent scientific reports on polymeric nanocarriers for MRI-guided drug delivery. Polymeric nanocarriers are a very broad and versatile group of materials for drug delivery, providing high loading capacities, improved pharmacokinetics, and biocompatibility. The main focus was on the contrasting properties of proposed polymeric nanocarriers, which can be categorized into three main groups: polymeric nanocarriers (1) with relaxation-type contrast agents, (2) with chemical exchange saturation transfer (CEST) properties, and (3) with direct detection contrast agents based on fluorinated compounds. The importance of this aspect tends to be downplayed, despite its being essential for the successful design of applicable theranostic nanocarriers for image-guided drug delivery. If available, cytotoxicity and therapeutic effects were also summarized.
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Affiliation(s)
- Natalia Łopuszyńska
- Department of Magnetic Resonance Imaging, Institute of Nuclear Physics Polish Academy of Sciences, 31-342 Cracow, Poland
| | - Władysław P. Węglarz
- Department of Magnetic Resonance Imaging, Institute of Nuclear Physics Polish Academy of Sciences, 31-342 Cracow, Poland
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Moraczewski K, Stepczyńska M, Malinowski R, Karasiewicz T, Jagodziński B, Rytlewski P. Modification of Polycaprolactone with Plant Extracts to Improve the Aging Resistance. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5154. [PMID: 37512427 PMCID: PMC10385144 DOI: 10.3390/ma16145154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/11/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
Natural extracts of plant origin are used as anti-aging compounds of biodegradable polymers. Coffee, cocoa, or cinnamon extracts in amounts from 0.5 to 10 wt.% were added to the polycaprolactone matrix. The manufactured materials were aged at elevated temperatures with increased relative humidity and continuous exposure to UV radiation for 720, 1440, or 2160 h. The performance of the proposed extracts was compared with the retail anti-aging compound, butylated hydroxytoluene. Visual assessment, FTIR analysis, melt flow rate, tensile strength, impact tensile strength, thermogravimetry, and differential scanning calorimetry tests were conducted. Results showed that the use of lower contents of the tested extracts is particularly advantageous. When the content of the extract did not exceed 1 wt.%, no unfavorable influence on the properties of the materials was observed. The stabilizing performance during accelerated aging was mostly similar to or greater than that of the reference compound used.
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Affiliation(s)
- Krzysztof Moraczewski
- Faculty of Materials Engineering, Kazimierz Wielki University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland
| | - Magdalena Stepczyńska
- Faculty of Materials Engineering, Kazimierz Wielki University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland
| | - Rafał Malinowski
- Łukasiewicz Research Network-Institute for Engineering of Polymer Materials and Dyes, Marii Skłodowskiej-Curie 55, 87-100 Toruń, Poland
| | - Tomasz Karasiewicz
- Faculty of Materials Engineering, Kazimierz Wielki University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland
| | - Bartłomiej Jagodziński
- Faculty of Materials Engineering, Kazimierz Wielki University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland
| | - Piotr Rytlewski
- Faculty of Materials Engineering, Kazimierz Wielki University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland
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Bhende PP, Chauhan R, Waigaonkar S, Bragança JM, Ganguly A. Composites of Bacillus megaterium H16 derived poly-3-hydroxybutyrate as a biomaterial for skin tissue engineering. Int J Biol Macromol 2023:125355. [PMID: 37327940 DOI: 10.1016/j.ijbiomac.2023.125355] [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: 02/03/2023] [Revised: 06/02/2023] [Accepted: 06/10/2023] [Indexed: 06/18/2023]
Abstract
Composite films of Bacillus megaterium H16 derived PHB with 1%Poly-L-lactic acid (PLLA), 1%Poly-ε-caprolactone (PCL), and 0.3 % graphene nanoplatelets (GNP) were produced by solvent cast method. The composite films were characterized by SEM, DSC-TGA, XRD, and ATR-FTIR. The ultrastructure of PHB and its composites depicted an irregular surface morphology with pores after the evaporation of chloroform. The GNPs were seen to be integrated inside the pores. The B. megaterium H16 derived-PHB and its composites demonstrated good biocompatibility which was evaluated in vitro on HaCaT and L929 cells by MTT assay. The cell viability was best for PHB followed by PHB/PLLA/PCL > PHB/PLLA/GNP > PHB/PLLA. PHB and its composites were highly hemocompatible as it resulted in <1 % hemolysis. The PHB/PLLA/PCL and PHB/PLLA/GNP composites can serve as ideal biomaterials for skin tissue engineering.
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Affiliation(s)
- Prajakta Praveen Bhende
- Department of Biological Sciences, BITS Pilani KK Birla Goa Campus, Zuarinagar, Goa 403726, India.
| | - Rashmi Chauhan
- Department of Chemistry, BITS Pilani KK Birla Goa Campus, Zuarinagar, Goa 403726, India.
| | - Sachin Waigaonkar
- Department of Mechanical Engineering, BITS Pilani KK Birla Goa Campus, Zuarinagar, Goa 403726, India.
| | - Judith M Bragança
- Department of Biological Sciences, BITS Pilani KK Birla Goa Campus, Zuarinagar, Goa 403726, India.
| | - Anasuya Ganguly
- Department of Biological Sciences, BITS Pilani KK Birla Goa Campus, Zuarinagar, Goa 403726, India.
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Gopal R, Md Shakhih MF, Sahalan M, Lee TC, Hermawan H, Sivalingam S, Kadiman S, Saidin S. Immobilization of blood coagulant factor VII on polycaprolactone membrane through polydopamine grafting. Colloids Surf B Biointerfaces 2023; 228:113390. [PMID: 37315506 DOI: 10.1016/j.colsurfb.2023.113390] [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: 03/22/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/16/2023]
Abstract
Postoperative bleeding following cardiac surgeries is still an issue that deranges the medical resources and cost. The oral and injection administrations of blood coagulation protein, Factor VII (FVII), is effective to stop the bleeding. However, its short half-life has limited the effectiveness of this treatment and frequent FVII intake may distress the patients. Instead, incorporating FVII into synthetic biodegradable polymers such as polycaprolactone (PCL) that is commonly used in drug delivery applications should provide a solution. Therefore, this study aimed to immobilize FVII on PCL membranes through a cross-linkage polydopamine (PDA) grafting as an intermediate layer. These membranes are intended to provide a solution for cardiac bleeding in coagulating blood and sealing the sutured region. The membranes were evaluated in terms of its physio-chemical properties, thermal behavior, FVII release profile and biocompatibility properties. The ATR-FTIR was used to analyze the chemical functionalities of the membranes. Further validation was done with XPS where the appearances of 0.45 ± 0.06% sulfur composition and C-S peak have confirmed the immobilization of FVII on the PCL membranes. The cross-linked FVIIs were viewed in spherical immobilization on the PCL membranes with a size range between 30 and 210 nm. The surface roughness and hydrophilicity of the membranes were enhanced with a slight shift of melting temperature. The PCL-PDA-FVII0.03 and PCL-PDA-FVII0.05 membranes, with wide area of FVII immobilization released approximately only 22% of FVII into the solution within 60 days period and, it is found that the PCL-PDA-FVIIx membranes projected the Higuchi release model with non-Fickian anomalous transport. While the cytotoxic and hemocompatibility analyses showed advance cell viability, identical coagulation time and low hemolysis ratio on the PCL-PDA-FVIIx membranes. The erythrocytes were viewed in polyhedrocyte coagulated structure under SEM visualization. These results validate the biocompatibility of the membranes and its ability to prolong blood coagulation, thus highlighting its potential application as cardiac bleeding sealant.
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Affiliation(s)
- Rathosivan Gopal
- Department of Biomedical Engineering and Health Sciences, Faculty of Electrical Engineering Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - Muhammad Faiz Md Shakhih
- Department of Biomedical Engineering and Health Sciences, Faculty of Electrical Engineering Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - Mariaulpa Sahalan
- Department of Biomedical Engineering and Health Sciences, Faculty of Electrical Engineering Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - Te Chuan Lee
- Department of Production and Operation Management, Faculty of Technology Management and Business, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Batu Pahat, Johor, Malaysia
| | - Hendra Hermawan
- Department of Mining, Metallurgical and Materials Engineering, Laval University, Quebec City G1V 0A6, Canada
| | - Sivakumar Sivalingam
- Department of Cardiothoracic Surgery, Institut Jantung Negara, 145 Jalan Tun Razak, 50400 Kuala Lumpur, Malaysia
| | - Suhaini Kadiman
- Department of Clinical Research, Institut Jantung Negara, 145 Jalan Tun Razak, 50400 Kuala Lumpur, Malaysia
| | - Syafiqah Saidin
- Department of Biomedical Engineering and Health Sciences, Faculty of Electrical Engineering Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia; IJN-UTM Cardiovascular Engineering Centre, Institute of Human Centered Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia.
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Shabab T, Bas O, Dargaville BL, Ravichandran A, Tran PA, Hutmacher DW. Microporous/Macroporous Polycaprolactone Scaffolds for Dental Applications. Pharmaceutics 2023; 15:pharmaceutics15051340. [PMID: 37242582 DOI: 10.3390/pharmaceutics15051340] [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: 02/01/2023] [Revised: 04/05/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
This study leverages the advantages of two fabrication techniques, namely, melt-extrusion-based 3D printing and porogen leaching, to develop multiphasic scaffolds with controllable properties essential for scaffold-guided dental tissue regeneration. Polycaprolactone-salt composites are 3D-printed and salt microparticles within the scaffold struts are leached out, revealing a network of microporosity. Extensive characterization confirms that multiscale scaffolds are highly tuneable in terms of their mechanical properties, degradation kinetics, and surface morphology. It can be seen that the surface roughness of the polycaprolactone scaffolds (9.41 ± 3.01 µm) increases with porogen leaching and the use of larger porogens lead to higher roughness values, reaching 28.75 ± 7.48 µm. Multiscale scaffolds exhibit improved attachment and proliferation of 3T3 fibroblast cells as well as extracellular matrix production, compared with their single-scale counterparts (an approximate 1.5- to 2-fold increase in cellular viability and metabolic activity), suggesting that these structures could potentially lead to improved tissue regeneration due to their favourable and reproducible surface morphology. Finally, various scaffolds designed as a drug delivery device were explored by loading them with the antibiotic drug cefazolin. These studies show that by using a multiphasic scaffold design, a sustained drug release profile can be achieved. The combined results strongly support the further development of these scaffolds for dental tissue regeneration applications.
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Affiliation(s)
- Tara Shabab
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Onur Bas
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia
- Max Planck Queensland Centre, Brisbane, QLD 4000, Australia
| | - Bronwin L Dargaville
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia
- Max Planck Queensland Centre, Brisbane, QLD 4000, Australia
| | - Akhilandeshwari Ravichandran
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Phong A Tran
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Dietmar W Hutmacher
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia
- Max Planck Queensland Centre, Brisbane, QLD 4000, Australia
- Australian Research Council Training Centre for Multiscale 3D Imaging, Modelling and Manufacturing (M3D Innovation), Queensland University of Technology, Kelvin Grove, QLD 4059, Australia
- Australian Research Council Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology, Brisbane, QLD 4059, Australia
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42
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Safari B, Aghazadeh M, Aghanejad A. Osteogenic differentiation of human adipose-derived mesenchymal stem cells in a bisphosphonate-functionalized polycaprolactone/gelatin scaffold. Int J Biol Macromol 2023; 241:124573. [PMID: 37100325 DOI: 10.1016/j.ijbiomac.2023.124573] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 04/28/2023]
Abstract
Recent trends in bone tissue engineering have focused on the development of biomimetic constructs with appropriate mechanical and physiochemical properties. Here, we report the fabrication of an innovative biomaterial scaffold based on a new bisphosphonate-containing synthetic polymer combined with gelatin. To this end, zoledronate (ZA)-functionalized polycaprolactone (PCL-ZA) was synthesized by a chemical grafting reaction. After adding gelatin to the PCL-ZA polymer solution, the porous PCL-ZA/gelatin scaffold was fabricated by the freeze-casting method. A scaffold with aligned pores and a porosity of 82.04 % was obtained. During in vitro biodegradability test, 49 % of its initial weight lost after 5 weeks. The elastic modulus of the PCL-ZA/gelatin scaffold was 31.4 MPa, and its tensile strength was 4.2 MPa. Based on the results of MTT assay, the scaffold had good cytocompatibility with human Adipose-Derived Mesenchymal Stem Cells (hADMSCs). Furthermore, cells grown in PCL-ZA/gelatin scaffold showed the highest mineralization and ALP activity compared to other test groups. Results of the RT-PCR test revealed that RUNX2, COL 1A1, and OCN genes were expressed in PCL-ZA/gelatin scaffold at the highest level, suggesting its good osteoinductive capacity. These results revealed that PCL-ZA/gelatin scaffold could be considered a proper biomimetic platform for bone tissue engineering.
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Affiliation(s)
- Banafsheh Safari
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Marziyeh Aghazadeh
- Oral Medicine Department of Dental Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ayuob Aghanejad
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Nuclear Medicine, Faculty of Medicine, Imam Reza General Hospital, Tabriz University of Medical Sciences, Tabriz, Iran.
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Varan C, Aksüt D, Şen M, Bilensoy E. Design and Characterization of Carboplatin and Paclitaxel Loaded PCL Filaments for 3D Printed Controlled Release Intrauterine Implants. Pharmaceutics 2023; 15:pharmaceutics15041154. [PMID: 37111639 PMCID: PMC10146591 DOI: 10.3390/pharmaceutics15041154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023] Open
Abstract
Uterine cancer is the fourth most common cancer in women. Despite various chemotherapy approaches, the desired effect has not yet been achieved. The main reason is each patient responds differently to standard treatment protocols. The production of personalized drugs and/or drug-loaded implants is not possible in today’s pharmaceutical industry; 3D printers allow for the rapid and flexible preparation of personalized drug-loaded implants. However, the key point is the preparation of drug-loaded working material such as filament for 3D printers. In this study, two different anticancer (paclitaxel, carboplatin) drug-loaded PCL filaments with a 1.75 mm diameter were prepared with a hot-melt extruder. To optimize the filament for a 3D printer, different PCL Mn, cyclodextrins and different formulation parameters were tried, and a series of characterization studies of filaments were conducted. The encapsulation efficiency, drug release profile and in vitro cell culture studies have shown that 85% of loaded drugs retain their effectiveness, provide a controlled release for 10 days and cause a decrease in cell viability of over 60%. In conclusion, it is possible to prepare optimum dual anticancer drug-loaded filaments for FDM 3D printers. Drug-eluting personalized intra-uterine devices can be designed for the treatment of uterine cancer by using these filaments.
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Affiliation(s)
- Cem Varan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara 06100, Turkey
| | - Davut Aksüt
- Department of Chemistry, Faculty of Science, Hacettepe University, Ankara 06800, Turkey
| | - Murat Şen
- Department of Chemistry, Faculty of Science, Hacettepe University, Ankara 06800, Turkey
- Polymer Science and Technology Division, Institute of Science Hacettepe University, Beytepe, Ankara 06800, Turkey
| | - Erem Bilensoy
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara 06100, Turkey
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Motameni A, Çardaklı İS, Gürbüz R, Alshemary AZ, Razavi M, Farukoğlu ÖC. Bioglass-polymer composite scaffolds for bone tissue regeneration: a review of current trends. INT J POLYM MATER PO 2023. [DOI: 10.1080/00914037.2023.2186864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Ali Motameni
- Department of Metallurgical and Materials Engineering, Middle East Technical University, Ankara, Turkey
- Department of Mechanical Engineering, Çankaya University, Ankara, Turkey
| | - İsmail Seçkin Çardaklı
- Department of Metallurgical and Materials Engineering, Atatürk University, Erzurum, Turkey
| | - Rıza Gürbüz
- Department of Metallurgical and Materials Engineering, Middle East Technical University, Ankara, Turkey
| | - Ammar Z. Alshemary
- Department of Chemistry, College of Science and Technology, Wenzhou-Kean University, Wenzhou, China
- Biomedical Engineering Department, Al-Mustaqbal University College, Hillah, Iraq
| | - Mehdi Razavi
- Biionix™ (Bionic Materials, Implants & Interfaces) Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, USA
- Department of Material Sciences and Engineering, University of Central Florida, Orlando, FL, USA
| | - Ömer Can Farukoğlu
- Department of Mechanical Engineering, Çankaya University, Ankara, Turkey
- Department of Manufacturing Engineering, Gazi University, Ankara, Turkey
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Agrawal R, Kumar A, Mohammed MKA, Singh S. Biomaterial types, properties, medical applications, and other factors: a recent review. JOURNAL OF ZHEJIANG UNIVERSITY. SCIENCE. A 2023. [PMCID: PMC9986044 DOI: 10.1631/jzus.a2200403] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/02/2022] [Indexed: 10/15/2023]
Abstract
Biomaterial research has been going on for several years, and many companies are heavily investing in new product development. However, it is a contentious field of science. Biomaterial science is a field that combines materials science and medicine. The replacement or restoration of damaged tissues or organs enhances the patient’s quality of life. The deciding aspect is whether or not the body will accept a biomaterial. A biomaterial used for an implant must possess certain qualities to survive a long time. When a biomaterial is used for an implant, it must have specific properties to be long-lasting. A variety of materials are used in biomedical applications. They are widely used today and can be used individually or in combination. This review will aid researchers in the selection and assessment of biomaterials. Before using a biomaterial, its mechanical and physical properties should be considered. Recent biomaterials have a structure that closely resembles that of tissue. Anti-infective biomaterials and surfaces are being developed using advanced antifouling, bactericidal, and antibiofilm technologies. This review tries to cover critical features of biomaterials needed for tissue engineering, such as bioactivity, self-assembly, structural hierarchy, applications, heart valves, skin repair, bio-design, essential ideas in biomaterials, bioactive biomaterials, bioresorbable biomaterials, biomaterials in medical practice, biomedical function for design, biomaterial properties such as biocompatibility, heat response, non-toxicity, mechanical properties, physical properties, wear, and corrosion, as well as biomaterial properties such surfaces that are antibacterial, nanostructured materials, and biofilm disrupting compounds, are all being investigated. It is technically possible to stop the spread of implant infection.
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Affiliation(s)
- Reeya Agrawal
- VLSI Research Centre, GLA University, 281406 Mathura, India
- Microelectronics & VLSI Lab, National Institute of Technology, Patna, 800005 India
| | - Anjan Kumar
- VLSI Research Centre, GLA University, 281406 Mathura, India
| | - Mustafa K. A. Mohammed
- Radiological Techniques Department, Al-Mustaqbal University College, 51001 Hillah Babylon, Iraq
| | - Sangeeta Singh
- Microelectronics & VLSI Lab, National Institute of Technology, Patna, 800005 India
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Youssef SH, Kim S, Khetan R, Afinjuomo F, Song Y, Garg S. The development of 5-fluorouracil biodegradable implants: A comparative study of PCL/PLGA blends. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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Kumari V, Mukhopadhyay S, Gupta B. Evaluation of
Terminalia arjuna
loaded in surfactant modified polycaprolactone nanofiber as an infection resistant matrix. J Appl Polym Sci 2023. [DOI: 10.1002/app.53735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Vandana Kumari
- Bioengineering Lab, Department of Textile and Fiber Engineering Indian Institute of Technology Delhi New Delhi India
| | - Samrat Mukhopadhyay
- Bioengineering Lab, Department of Textile and Fiber Engineering Indian Institute of Technology Delhi New Delhi India
| | - Bhuvanesh Gupta
- Bioengineering Lab, Department of Textile and Fiber Engineering Indian Institute of Technology Delhi New Delhi India
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Therapeutic Efficacy of Polymeric Biomaterials in Treating Diabetic Wounds-An Upcoming Wound Healing Technology. Polymers (Basel) 2023; 15:polym15051205. [PMID: 36904445 PMCID: PMC10007618 DOI: 10.3390/polym15051205] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/15/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
Diabetic wounds are one of the serious, non-healing, chronic health issues faced by individuals suffering from diabetic mellitus. The distinct phases of wound healing are either prolonged or obstructed, resulting in the improper healing of diabetic wounds. These injuries require persistent wound care and appropriate treatment to prevent deleterious effects such as lower limb amputation. Although there are several treatment strategies, diabetic wounds continue to be a major threat for healthcare professionals and patients. The different types of diabetic wound dressings that are currently used differ in their properties of absorbing wound exudates and may also cause maceration to surrounding tissues. Current research is focused on developing novel wound dressings incorporated with biological agents that aid in a faster rate of wound closure. An ideal wound dressing material must absorb wound exudates, aid in the appropriate exchange of gas, and protect from microbial infections. It must support the synthesis of biochemical mediators such as cytokines, and growth factors that are crucial for faster healing of wounds. This review highlights the recent advances in polymeric biomaterial-based wound dressings, novel therapeutic regimes, and their efficacy in treating diabetic wounds. The role of polymeric wound dressings loaded with bioactive compounds, and their in vitro and in vivo performance in diabetic wound treatment are also reviewed.
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Sigaroodi F, Rahmani M, Parandakh A, Boroumand S, Rabbani S, Khani MM. Designing cardiac patches for myocardial regeneration–a review. INT J POLYM MATER PO 2023. [DOI: 10.1080/00914037.2023.2180510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- Faraz Sigaroodi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahya Rahmani
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azim Parandakh
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Safieh Boroumand
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shahram Rabbani
- Research Center for Advanced Technologies in Cardiovascular Medicine, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad-Mehdi Khani
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Farasati Far B, Naimi-Jamal MR, Sedaghat M, Hoseini A, Mohammadi N, Bodaghi M. Combinational System of Lipid-Based Nanocarriers and Biodegradable Polymers for Wound Healing: An Updated Review. J Funct Biomater 2023; 14:jfb14020115. [PMID: 36826914 PMCID: PMC9963106 DOI: 10.3390/jfb14020115] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/12/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
Skin wounds have imposed serious socioeconomic burdens on healthcare providers and patients. There are just more than 25,000 burn injury-related deaths reported each year. Conventional treatments do not often allow the re-establishment of the function of affected regions and structures, resulting in dehydration and wound infections. Many nanocarriers, such as lipid-based systems or biobased and biodegradable polymers and their associated platforms, are favorable in wound healing due to their ability to promote cell adhesion and migration, thus improving wound healing and reducing scarring. Hence, many researchers have focused on developing new wound dressings based on such compounds with desirable effects. However, when applied in wound healing, some problems occur, such as the high cost of public health, novel treatments emphasizing reduced healthcare costs, and increasing quality of treatment outcomes. The integrated hybrid systems of lipid-based nanocarriers (LNCs) and polymer-based systems can be promising as the solution for the above problems in the wound healing process. Furthermore, novel drug delivery systems showed more effective release of therapeutic agents, suitable mimicking of the physiological environment, and improvement in the function of the single system. This review highlights recent advances in lipid-based systems and the role of lipid-based carriers and biodegradable polymers in wound healing.
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Affiliation(s)
- Bahareh Farasati Far
- Research Laboratory of Green Organic Synthesis and Polymers, Department of Chemistry, Iran University of Science and Technology, Tehran 1684613114, Iran
| | - Mohammad Reza Naimi-Jamal
- Research Laboratory of Green Organic Synthesis and Polymers, Department of Chemistry, Iran University of Science and Technology, Tehran 1684613114, Iran
- Correspondence: (M.R.N.-J.); (M.B.)
| | - Meysam Sedaghat
- Advanced Materials Research Center, Materials Engineering Department, Najafabad Branch, Islamic Azad University, Najafabad 8514143131, Iran
| | - Alireza Hoseini
- Department of Materials Engineering, Iran University of Science and Technology, Tehran 1684613114, Iran
| | - Negar Mohammadi
- Department of Pharmaceutics, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Science, Ahvaz 6135733184, Iran
| | - Mahdi Bodaghi
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK
- Correspondence: (M.R.N.-J.); (M.B.)
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