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Monou PK, Andriotis EG, Tsongas K, Tzimtzimis EK, Katsamenis OL, Tzetzis D, Anastasiadou P, Ritzoulis C, Vizirianakis IS, Andreadis D, Fatouros DG. Fabrication of 3D Printed Hollow Microneedles by Digital Light Processing for the Buccal Delivery of Actives. ACS Biomater Sci Eng 2023; 9:5072-5083. [PMID: 37528336 DOI: 10.1021/acsbiomaterials.3c00116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
In the present study, two different microneedle devices were produced using digital light processing (DLP). These devices hold promise as drug delivery systems to the buccal tissue as they increase the permeability of actives with molecular weights between 600 and 4000 Da. The attached reservoirs were designed and printed along with the arrays as a whole device. Light microscopy was used to quality control the printability of the designs, confirming that the actual dimensions are in agreement with the digital design. Non-destructive volume imaging by means of microfocus computed tomography was employed for dimensional and defect characterization of the DLP-printed devices, demonstrating the actual volumes of the reservoirs and the malformations that occurred during printing. The penetration test and finite element analysis showed that the maximum stress experienced by the needles during the insertion process (10 N) was below their ultimate compressive strength (240-310 N). Permeation studies showed the increased permeability of three model drugs when delivered with the MN devices. Size-exclusion chromatography validated the stability of all the actives throughout the permeability tests. The safety of these printed devices for buccal administration was confirmed by histological evaluation and cell viability studies using the TR146 cell line, which indicated no toxic effects.
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Affiliation(s)
- Paraskevi Kyriaki Monou
- Department of Pharmacy Division of Pharmaceutical Technology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
- Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Thessaloniki 57001, Greece
| | - Eleftherios G Andriotis
- Department of Pharmacy Division of Pharmaceutical Technology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Konstantinos Tsongas
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, Thessaloniki 57001, Greece
- Department of Industrial Engineering and Management, International Hellenic University, Thessaloniki 57001, Greece
| | - Emmanouil K Tzimtzimis
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, Thessaloniki 57001, Greece
| | - Orestis L Katsamenis
- μ-VIS X-ray Imaging Centre, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO17 1BJ, U.K
| | - Dimitrios Tzetzis
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, Thessaloniki 57001, Greece
| | - Pinelopi Anastasiadou
- Department of Oral Medicine/Pathology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Christos Ritzoulis
- Department of Food Science and Technology, International Hellenic University, Thessaloniki 57400, Greece
| | - Ioannis S Vizirianakis
- Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Thessaloniki 57001, Greece
- Department of Pharmacy, Laboratory of Pharmacology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
- Department of Life and Health Sciences, University of Nicosia, Nicosia CY-1700, Cyprus
| | - Dimitrios Andreadis
- μ-VIS X-ray Imaging Centre, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO17 1BJ, U.K
| | - Dimitrios G Fatouros
- Department of Pharmacy Division of Pharmaceutical Technology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
- Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Thessaloniki 57001, Greece
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Kapourani A, Chachlioutaki K, Andriotis EG, Fatouros DG, Barmpalexis P. Evaluating PAA/PVA thermal crosslinking process during the preparation of in-situ high-drug loading amorphous solid dispersions. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Andriotis EG, Monou PK, Komis G, Bouropoulos N, Ritzoulis C, Delis G, Kiosis E, Arsenos G, Fatouros DG. Effect of Glyceryl Monoolein Addition on the Foaming Properties and Stability of Whipped Oleogels. Gels 2022; 8:705. [PMID: 36354613 PMCID: PMC9689941 DOI: 10.3390/gels8110705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 03/11/2024] Open
Abstract
Medium Chain Triglyceride (MCT) oil was successfully combined with Glyceryl Monostearate (GMS) and Glyceryl Monoolein (GMO) to form oleogels that were subsequently whipped to form stable oleofoams. The co-crystallization of GMS and GMO at a ratio of 20:1, 20:2.5, and 20:5 within MCT oil was studied through Differential Scanning Calorimetry (DSC), X-ray Diffraction analysis (XRD), rheological analysis, Fluorescence Recovery after Photobleaching (FRAP), Fourier Transform Infrared Spectroscopy (FTIR), and polarized microscopy. The addition of 5% GMO resulted in the production of more stable oleogels in terms of crystal structure and higher peak melting point, rendering this formulation suitable for pharmaceutical applications that are intended to be used internally and those that require stability at temperatures close to 40 °C. All formulations were whipped to form oleofoams that were evaluated for their storage stability for prolonged period at different temperatures. The results show that oleofoams containing 5% MGO retained their foam characteristics even after 3 months of storage under different temperature conditions.
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Affiliation(s)
- Eleftherios G. Andriotis
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, GR 54124 Thessaloniki, Greece
| | - Paraskevi-Kyriaki Monou
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, GR 54124 Thessaloniki, Greece
| | - George Komis
- School of Biology, Aristotle University of Thessaloniki, GR 54124 Thessaloniki, Greece
| | - Nikolaos Bouropoulos
- Department of Materials Science, University of Patras, GR 26504 Patras, Greece
- Foundation for Research and Technology Hellas, Institute of Chemical Engineering and High Temperature Chemical Processes, GR 26504 Patras, Greece
| | - Christos Ritzoulis
- Department of Food Science and Technology, International Hellenic University, Alexander Campus, GR 57400 Thessaloniki, Greece
| | - Georgios Delis
- Laboratory of Pharmacology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, GR 54124 Thessaloniki, Greece
| | - Evangelos Kiosis
- Clinic of Farm Animals, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, GR 54124 Thessaloniki, Greece
| | - Georgios Arsenos
- Laboratory of Animal Husbandry, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, GR 54124 Thessaloniki, Greece
| | - Dimitrios G. Fatouros
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, GR 54124 Thessaloniki, Greece
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Papadimitriou P, Andriotis EG, Fatouros D, Tzetzis D. Design and Prototype Fabrication of a Cost-Effective Microneedle Drug Delivery Apparatus Using Fused Filament Fabrication, Liquid Crystal Display and Semi-Solid Extrusion 3D Printing Technologies. Micromachines (Basel) 2022; 13:1319. [PMID: 36014241 PMCID: PMC9415897 DOI: 10.3390/mi13081319] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/10/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
The current study describes the design of a cost-effective drug delivery apparatus that can be manufactured, assembled, and utilized as easily and quickly as possible, minimizing the time and expense of the supply chain. This apparatus could become a realistic alternative method of providing a vaccine or drug in harsh circumstances, including humanitarian disasters or a lack of medical and nursing staff, conditions that are frequently observed in developing countries. Simultaneously, with the use of microneedles (MNs), the apparatus can benefit from the numerous advantages offered by them during administration. The hollow microneedles in particular are internally perforated and are capable of delivering the active substance to the skin. The apparatus was designed with appropriate details in computer aided design software, and various 3D printing technologies were utilized in order to fabricate the prototype. The parts that required minimum accuracy, such as the main body of the apparatus, were fabricated with fused filament fabrication. The internal parts and the hollow microneedles were fabricated with liquid crystal display, and the substance for the drug loading carrier, which was an alginate gel cylinder, was fabricated with semi-solid extrusion 3D printing.
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Affiliation(s)
- Petros Papadimitriou
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, GR-57001 Thessaloniki, Greece
| | - Eleftherios G. Andriotis
- Laboratory of Pharmaceutical Technology, Department of Pharmaceutical Sciences, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Dimitrios Fatouros
- Laboratory of Pharmaceutical Technology, Department of Pharmaceutical Sciences, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Dimitrios Tzetzis
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, GR-57001 Thessaloniki, Greece
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Kapourani A, Andriotis EG, Chachlioutaki K, Kontogiannopoulos KN, Klonos PA, Kyritsis A, Pavlidou E, Bikiaris DN, Fatouros DG, Barmpalexis P. High-Drug-Loading Amorphous Solid Dispersions via In Situ Thermal Cross-Linking: Unraveling the Mechanisms of Stabilization. Mol Pharm 2021; 18:4393-4414. [PMID: 34699238 DOI: 10.1021/acs.molpharmaceut.1c00563] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This article takes a step forward in understanding the mechanisms involved during the preparation and performance of cross-linked high-drug-loading (HDL) amorphous solid dispersions (ASDs). Specifically, ASDs, having 90 wt % poorly water-soluble drug indomethacin (IND), were prepared via in situ thermal cross-linking of poly(acrylic acid) (PAA) and poly(vinyl alcohol) (PVA) and thoroughly evaluated in terms of physical stability and in vitro supersaturation. Results showed that HDL ASDs having excellent active pharmaceutical ingredient (API) amorphous stability and prolonged in vitro supersaturation were prepared by fine tuning the cross-linking procedure. Unraveling of the processes involved during ASD's formation shed light on the significant role of the cross-linking conditions (i.e., temperature and time), the physicochemical properties of the API, and the hydrolysis level of the cross-linker as key factors in modulating ASD's stability. In-depth analysis of the prepared systems revealed the (1) reduction of API's molecular motions within the cross-linked polymeric networks (through API's strong spatial confinement), (2) the structural changes in the prepared cross-linked matrices (induced by the high API drug loading), and (3) the tuning of the cross-linking density via utilization of low-hydrolyzed PVA as the major mechanisms responsible for ASD's exceptional performance. Complementary analysis by means of molecular dynamics simulations also highlighted the vital role of strong drug-polymer intermolecular interactions evolving among the ASD components. Overall, the impression of the complexity of in situ cross-linked ASDs has been reinforced with the excessive variation of parameters investigated in the current study, offering thus insights up to the submolecular level to lay the groundwork and foundations for the comprehensive assessment of a new emerging class of HDL amorphous API formulations.
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Affiliation(s)
- Afroditi Kapourani
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Eleftherios G Andriotis
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Konstantina Chachlioutaki
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Konstantinos N Kontogiannopoulos
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.,Natural Products Research Centre of Excellence-AUTH (NatPro-AUTH), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Thessaloniki 57001, Greece
| | - Panagiotis A Klonos
- Department of Physics, National Technical University of Athens, Zografou Campus, Athens 15780, Greece
| | - Apostolos Kyritsis
- Department of Physics, National Technical University of Athens, Zografou Campus, Athens 15780, Greece
| | - Eleni Pavlidou
- Solid State Section, Physics Department, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Dimitrios N Bikiaris
- Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Dimitrios G Fatouros
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Panagiotis Barmpalexis
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.,Natural Products Research Centre of Excellence-AUTH (NatPro-AUTH), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Thessaloniki 57001, Greece
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6
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Karavasili C, Eleftheriadis GK, Gioumouxouzis C, Andriotis EG, Fatouros DG. Mucosal drug delivery and 3D printing technologies: A focus on special patient populations. Adv Drug Deliv Rev 2021; 176:113858. [PMID: 34237405 DOI: 10.1016/j.addr.2021.113858] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/07/2021] [Accepted: 07/01/2021] [Indexed: 02/08/2023]
Abstract
In the last decade, additive manufacturing (AM) technologies have revolutionized how healthcare provision is envisioned. The rapid evolution of these technologies has already created a momentum in the effort to address unmet personalized needs in large patient groups, especially those belonging to sensitive subgroup populations (e.g., paediatric, geriatric, visually impaired). At the same time, AM technologies have become a salient ally to overcome defined health challenges in drug formulation development by addressing not only the requirement of personalized therapy, but also problems related to lowering non-specific drug distribution and the risk of adverse reactions, enhancing drug absorption and bioavailability, as well as ease of administration and patient compliance. To this end, mucoadhesive drug delivery systems fabricated with the support of AM technologies provide competitive advantages over conventional dosage forms, aiming to entice innovation in drug formulation with special focus on sensitive patient populations.
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Monou PK, Andriotis EG, Bouropoulos N, Panteris E, Akrivou M, Vizirianakis IS, Ahmad Z, Fatouros DG. Engineered mucoadhesive microparticles of formoterol/budesonide for pulmonary administration. Eur J Pharm Sci 2021; 165:105955. [PMID: 34298141 DOI: 10.1016/j.ejps.2021.105955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 07/13/2021] [Accepted: 07/18/2021] [Indexed: 10/20/2022]
Abstract
In the present study, a multi-component system comprised of dipalmitylphospatidylcholine (DPPC), Chitosan, Lactose, and L-Leucine was developed for pulmonary delivery. Microparticles were engineered by the spray drying process and the selection of the critical parameters was performed by applying experimental design. The microcarriers with the appropriate size and yield were co-formulated with two active pharmaceutical ingredients (APIs), namely, Formoterol fumarate and Budesonide, and they were further investigated. All formulations exhibited spherical shape, appropriate aerodynamic performance, satisfying entrapment efficiency, and drug load. Their physicochemical properties were evaluated using Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FT-IR), and Differential Scanning Calorimetry (DSC). The aerodynamic particle size characterization was determined using an eight-stage Andersen cascade impactor, whereas the release of the actives was monitored in vitro in simulated lung fluid. Additional evaluation of the microparticles' mucoadhesive properties was performed by ζ-potential measurements and ex vivo mucoadhesion study applying a falling liquid film method using porcine lung tissue. Cytotoxicity and cellular uptake studies in Calu-3 lung epithelial cell line were conducted to further investigate the safety and efficacy of the developed formulations.
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Affiliation(s)
- Paraskevi Kyriaki Monou
- Department of Pharmacy, Division of Pharmaceutical Technology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Eleftherios G Andriotis
- Department of Pharmacy, Division of Pharmaceutical Technology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Nikolaos Bouropoulos
- Department of Materials Science, University of Patras, 26504 Rio, Patras, Greece; Foundation for Research and Technology Hellas, Institute of Chemical Engineering and High Temperature Chemical Processes, 26504 Patras, Greece
| | - Emmanuel Panteris
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Melpomeni Akrivou
- Department of Pharmacy, Division of Pharmacology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Ioannis S Vizirianakis
- Department of Pharmacy, Division of Pharmacology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; Department of Life and Health Sciences, University of Nicosia, CY-1700 Nicosia, Cyprus
| | - Zeeshan Ahmad
- Leicester School of Pharmacy, De Montfort University, Leicester, LE1 9BH, UK
| | - Dimitrios G Fatouros
- Department of Pharmacy, Division of Pharmaceutical Technology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Eleftheriadis GK, Kantarelis E, Monou PK, Andriotis EG, Bouropoulos N, Tzimtzimis EK, Tzetzis D, Rantanen J, Fatouros DG. Automated digital design for 3D-printed individualized therapies. Int J Pharm 2021; 599:120437. [PMID: 33662466 DOI: 10.1016/j.ijpharm.2021.120437] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 12/12/2022]
Abstract
Customization of pharmaceutical products is a central requirement for personalized medicines. However, the existing processing and supply chain solutions do not support such manufacturing-on-demand approaches. In order to solve this challenge, three-dimensional (3D) printing has been applied for customization of not only the dose and release characteristics, but also appearance of the product (e.g., size and shape). A solution for customization can be realized via non-expert-guided processing of digital designs and drug dose. This study presents a proof-of-concept computational algorithm which calculates the optimal dimensions of grid-like orodispersible films (ODFs), considering the recommended dose. Further, the algorithm exports a digital design file which contains the required ODF configuration. Cannabidiol (CBD) was incorporated in the ODFs, considering the simple correspondence between the recommended dose and the patient's weight. The ODFs were 3D-printed and characterized for their physicochemical, mechanical, disintegration and drug release properties. The algorithm was evaluated for its accuracy on dose estimation, highlighting the reproducibility of individualized ODFs. The in vitro performance was principally affected by the thickness and volume of the grid-like structures. The concept provides an alternative approach that promotes automation in the manufacturing of personalized medications in distributed points of care, such as hospitals and local pharmacies.
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Affiliation(s)
- Georgios K Eleftheriadis
- Division of Pharmaceutical Technology, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Efthymios Kantarelis
- KTH Royal Institute of Technology, Department of Chemical Engineering, SE100 44 Stockholm, Sweden
| | - Paraskevi Kyriaki Monou
- Division of Pharmaceutical Technology, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Eleftherios G Andriotis
- Division of Pharmaceutical Technology, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Nikolaos Bouropoulos
- Department of Materials Science, University of Patras, 26504 Rio, Patras, Greece; Foundation for Research and Technology Hellas, Institute of Chemical Engineering and High Temperature Chemical Processes, 26504 Patras, Greece
| | - Emmanouil K Tzimtzimis
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, 57001 Thermi, Greece
| | - Dimitrios Tzetzis
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, 57001 Thermi, Greece
| | - Jukka Rantanen
- Department of Pharmacy, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Dimitrios G Fatouros
- Division of Pharmaceutical Technology, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Karavasili C, Tsongas K, Andreadis II, Andriotis EG, Papachristou ET, Papi RM, Tzetzis D, Fatouros DG. Corrigendum to "Physico-mechanical and finite element analysis evaluation of 3D printable alginate-methylcellulose inks for wound healing applications" [Carbohydr. Polym. 247 (2020) 116666]. Carbohydr Polym 2021; 255:117361. [PMID: 33436194 DOI: 10.1016/j.carbpol.2020.117361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Christina Karavasili
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, GR-54124, Greece.
| | - Konstantinos Tsongas
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, 14km Thessaloniki - N. Moudania, Thermi, GR-57001, Greece
| | - Ioannis I Andreadis
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, GR-54124, Greece
| | - Eleftherios G Andriotis
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, GR-54124, Greece
| | - Eleni T Papachristou
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, GR-54124, Greece
| | - Rigini M Papi
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, GR-54124, Greece
| | - Dimitrios Tzetzis
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, 14km Thessaloniki - N. Moudania, Thermi, GR-57001, Greece
| | - Dimitrios G Fatouros
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, GR-54124, Greece
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Andriotis EG, Papi RM, Paraskevopoulou A, Achilias DS. Synthesis of D-Limonene Loaded Polymeric Nanoparticles with Enhanced Antimicrobial Properties for Potential Application in Food Packaging. Nanomaterials (Basel) 2021; 11:nano11010191. [PMID: 33451168 PMCID: PMC7828745 DOI: 10.3390/nano11010191] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/10/2021] [Accepted: 01/11/2021] [Indexed: 12/24/2022]
Abstract
Mini-emulsion polymerization was applied for the synthesis of cross-linked polymeric nanoparticles comprised of methyl methacrylate (MMA) and Triethylene Glycol Dimethacrylate (TEGDMA) copolymers, used as matrix-carriers for hosting D-limonene. D-limonene was selected as a model essential oil, well known for its pleasant odor and its enhanced antimicrobial properties. The synthesized particles were assessed for their morphology and geometric characteristics by Dynamic Light Scattering (DLS) and Scanning Electron Microscopy (SEM), which revealed the formation of particles with mean diameters at the nanoscale (D[3,2] = 0.135 μm), with a spherical shape, while the dried particles formed larger clusters of several microns (D[3,2] = 80.69 μm). The percentage of the loaded D-limonene was quantified by Thermogravimetric Analysis (TGA), complemented by Gas Chromatography-Mass Spectrometry analysis coupled with a pyrolysis unit (Py/GC-MS). The results showed that the volatiles emitted by the nanoparticles were composed mainly of D-limonene (10% w/w of dry particles). Particles subjected to higher temperatures tended to decompose. The mechanism that governs the release of D-limonene from the as-synthesized particles was studied by fitting mathematical models to the release data obtained by isothermal TGA analysis of the dry particles subjected to accelerated conditions. The analysis revealed a two-stage release of the volatiles, one governed by D-limonene release and the other governed by TEGDMA release. Finally, the antimicrobial potency of the D-limonene-loaded particles was demonstrated, indicating the successful synthesis of polymeric nanoparticles loaded with D-limonene, owing to enhanced antimicrobial properties. The overall performance of these nanoparticles renders them a promising candidate material for the formation of self-sterilized surfaces with enhanced antimicrobial activity and potential application in food packaging.
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Affiliation(s)
- Eleftherios G. Andriotis
- Laboratory of Polymer and Dyes Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Rigini M. Papi
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Adamantini Paraskevopoulou
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Dimitris S. Achilias
- Laboratory of Polymer and Dyes Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
- Correspondence: ; Tel.: +30-2310-997822
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Andriotis EG, Chachlioutaki K, Monou PK, Bouropoulos N, Tzetzis D, Barmpalexis P, Chang MW, Ahmad Z, Fatouros DG. Development of Water-Soluble Electrospun Fibers for the Oral Delivery of Cannabinoids. AAPS PharmSciTech 2021; 22:23. [PMID: 33400042 DOI: 10.1208/s12249-020-01895-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 12/01/2020] [Indexed: 12/19/2022] Open
Abstract
Cannabidiol (CBD) and cannabigerol (CBG) are two active pharmaceutical ingredients, derived from cannabis plant. In the present study, CBD and CBG were formulated with polyvinyl(pyrrolidone) (PVP) and Eudragit L-100, using electrohydrodynamic atomization (electrospinning). The produced fibers were smooth and uniform in shape, with average fiber diameters in the range of 700-900 nm for PVP fibers and 1-5 μm for Eudragit L-100 fibers. The encapsulation efficiency for both CB and CBG was high (over 90%) for all formulations tested. Both in vitro release and disintegration tests of the formulations in simulated gastric fluids (SGF) and simulated intestinal fluids (SIF) indicated the rapid disintegration and dissolution of the fibers and the subsequent rapid release of the drugs. The study concluded that the electrospinning process is a fast and efficient method to produce drug-loaded fibers suitable for the per os administration of cannabinoids.
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Andriotis EG, Monou PK, Louka A, Papaefstathiou E, Eleftheriadis GK, Fatouros DG. Development of food grade 3D printable ink based on pectin containing cannabidiol/cyclodextrin inclusion complexes. Drug Dev Ind Pharm 2020; 46:1569-1577. [DOI: 10.1080/03639045.2020.1791168] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Eleftherios G. Andriotis
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Paraskevi-Kyriaki Monou
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Aristi Louka
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleni Papaefstathiou
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios K. Eleftheriadis
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios G. Fatouros
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
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13
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Eleftheriadis GK, Katsiotis CS, Andreadis DA, Tzetzis D, Ritzoulis C, Bouropoulos N, Kanellopoulou D, Andriotis EG, Tsibouklis J, Fatouros DG. Inkjet printing of a thermolabile model drug onto FDM-printed substrates: formulation and evaluation. Drug Dev Ind Pharm 2020; 46:1253-1264. [PMID: 32597338 DOI: 10.1080/03639045.2020.1788062] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The inkjet printing (IP) and fused deposition modeling (FDM) technologies have emerged in the pharmaceutical field as novel and personalized formulation approaches. Specific manufacturing factors must be considered in each adopted methodology, i.e. the development of suitable substrates for IP and the incorporation of highly thermostable active pharmaceutical compounds (APIs) for FDM. In this study, IP and FDM printing technologies were investigated for the fabrication of hydroxypropyl methylcellulose-based mucoadhesive films for the buccal delivery of a thermolabile model drug. Significance: This proof-of-concept approach was expected to provide an alternative formulation methodology for personalized mucoadhesive buccal films. METHODS Mucoadhesive substrates were prepared by FDM and were subjected to sequential IP of an ibuprofen-loaded liquid ink. The interactions between these processes and the performance of the films were evaluated by various analytical and spectroscopic techniques, as well as by in vitro and ex vivo studies. RESULTS The model drug was efficiently deposited by sequential IP passes onto the FDM-printed substrates. Significant variations were revealed on the morphological, physicochemical and mechanical properties of the prepared films, and linked to the number of IP passes. The mechanism of drug release, the mucoadhesion and the permeation of the drug through the buccal epithelium were evaluated, in view of the extent of ink deposition onto the buccal films, as well as the distribution of the API. CONCLUSIONS The presented methodology provided a proof-of-concept formulation approach for the development of personalized mucoadhesive films.
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Affiliation(s)
| | - Christos S Katsiotis
- Department of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios A Andreadis
- Department of Oral Medicine/Pathology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios Tzetzis
- School of Science and Technology, International Hellenic University, Thermi, Greece
| | - Christos Ritzoulis
- Department of Food Science and Technology, International Hellenic University, Thessaloniki, Greece
| | - Nikolaos Bouropoulos
- Department of Materials Science, University of Patras, Patras, Greece.,Foundation for Research and Technology Hellas, Institute of Chemical Engineering and High Temperature Chemical Processes, Patras, Greece
| | - Dimitra Kanellopoulou
- Foundation for Research and Technology Hellas, Institute of Chemical Engineering and High Temperature Chemical Processes, Patras, Greece
| | | | - John Tsibouklis
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
| | - Dimitrios G Fatouros
- Department of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
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14
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Karavasili C, Tsongas K, Andreadis II, Andriotis EG, Papachristou ET, Papi RM, Tzetzis D, Fatouros DG. Physico-mechanical and finite element analysis evaluation of 3D printable alginate-methylcellulose inks for wound healing applications. Carbohydr Polym 2020; 247:116666. [PMID: 32829794 DOI: 10.1016/j.carbpol.2020.116666] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 06/12/2020] [Accepted: 06/16/2020] [Indexed: 01/08/2023]
Abstract
The present study reports on the comprehensive physico-mechanical evaluation of 3D printable alginate-methylcellulose hydrogels with bioactive components (Manuka honey, aloe vera gel, eucalyptus essential oil) using a combined experimental-numerical approach. The 3D printable carbohydrate inks demonstrated good swelling properties under moist conditions and adequate antimicrobial and antibiofilm efficacy against both Gram positive and negative bacteria. The effect of the bioactive compounds on the viscosity and mechanical properties of the 3D printable hydrogels was assessed with rheological, nanoindentation and shear test measurements. All hydrogel compositions showed good biocompatibility on human dermal fibroblasts, stimulating cell growth as confirmed by an in vitro wound healing assay. Finite element analysis simulation was employed to further advance the calculation accuracy of the nanoindentation tests, concluding that combination of an experimental and a numerical technique may constitute a useful method to characterize the mechanical behavior of composite hydrogel films for use in wound healing applications.
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Affiliation(s)
- Christina Karavasili
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece.
| | - Konstantinos Tsongas
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, 14km Thessaloniki - N. Moudania, Thermi GR-57001, Greece
| | - Ioannis I Andreadis
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece
| | - Eleftherios G Andriotis
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece
| | - Eleni T Papachristou
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece
| | - Rigini M Papi
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece
| | - Dimitrios Tzetzis
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, 14km Thessaloniki - N. Moudania, Thermi GR-57001, Greece
| | - Dimitrios G Fatouros
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece
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15
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Synaridou MS, Andriotis EG, Zacharis CK, Fatouros DG, Markopoulou CK. Solid Dosage Forms of Dexamethasone Sodium Phosphate Intended for Pediatric Use: Formulation and Stability Studies. Pharmaceutics 2020; 12:pharmaceutics12040354. [PMID: 32295189 PMCID: PMC7238162 DOI: 10.3390/pharmaceutics12040354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/06/2020] [Accepted: 04/10/2020] [Indexed: 11/16/2022] Open
Abstract
Undesirable taste has always been a key issue for oral dosage forms. The aim of the present study was to co-formulate dexamethasone sodium phosphate (DSP), in common pediatric oral forms, using sweet preserves and/or different types of chocolate as excipients. An array of different kinds of chocolate were co-formulated with DSP and were further characterized by means of dynamic light scattering (DLS), x-ray diffraction (XRD), differential scanning calorimetry (DSC) and Fourier-transform infrared (FT-IR) spectroscopy. For the assay of active pharmaceutical ingredient (API), the chocolate samples were pre-treated by means of liquid extraction and analyzed using an high-performance liquid chromatographic (HPLC) method with a strong anion exchange column and a phosphate buffer (17 mM, pH = 3)/acetonitrile, 50:50 v/v as mobile phase. The developed chromatographic method was validated based on the International Conference on Harmonization (ICH) guidelines (%Mean Recovery = 99.4% and %Relative Standard Deviation, RSD = 0.43%). Furthermore, dissolution and in vitro digestion tests of chocolate formulations were evaluated. The DSP was found to be stable for at least 1 year in prepared preparations.
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Affiliation(s)
- Maria S. Synaridou
- Laboratory of Pharmaceutical Analysis, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (M.S.S.); (C.K.Z.)
| | - Eleftherios G. Andriotis
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (E.G.A.); (D.G.F.)
| | - Constantinos K. Zacharis
- Laboratory of Pharmaceutical Analysis, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (M.S.S.); (C.K.Z.)
| | - Dimitrios G. Fatouros
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (E.G.A.); (D.G.F.)
| | - Catherine K. Markopoulou
- Laboratory of Pharmaceutical Analysis, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (M.S.S.); (C.K.Z.)
- Correspondence: ; Tel.: +30-23-1099-7665
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Nazari K, Mehta P, Arshad MS, Ahmed S, Andriotis EG, Singh N, Qutachi O, Chang MW, Fatouros DG, Ahmad Z. Quality by Design Micro-Engineering Optimisation of NSAID-Loaded Electrospun Fibrous Patches. Pharmaceutics 2019; 12:pharmaceutics12010002. [PMID: 31861296 PMCID: PMC7022274 DOI: 10.3390/pharmaceutics12010002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/09/2019] [Accepted: 12/12/2019] [Indexed: 02/01/2023] Open
Abstract
The purpose of this study was to apply the Quality by Design (QbD) approach to the electrospinning of fibres loaded with the nonsteroidal anti-inflammatory drugs (NSAIDs) indomethacin (INDO) and diclofenac sodium (DICLO). A Quality Target Product Profile (QTPP) was made, and risk assessments (preliminary hazard analysis) were conducted to identify the impact of material attributes and process parameters on the critical quality attributes (CQAs) of the fibres. A full factorial design of experiments (DoE) of 20 runs was built, which was used to carry out experiments. The following factors were assessed: Drugs, voltage, flow rate, and the distance between the processing needle and collector. Release studies exhibited INDO fibres had greater total release of active drug compared to DICLO fibres. Voltage and distance were found to be the most significant factors of the experiment. Multivariate statistical analytical software helped to build six feasible design spaces and two flexible, universal design spaces for both drugs, at distances of 5 cm and 12.5 cm, along with a flexible control strategy. The current findings and their analysis confirm that QbD is a viable and invaluable tool to enhance product and process understanding of electrospinning for the assurance of high-quality fibres.
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Affiliation(s)
- Kazem Nazari
- The Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (K.N.); (P.M.); (M.S.A.); (S.A.); (O.Q.)
| | - Prina Mehta
- The Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (K.N.); (P.M.); (M.S.A.); (S.A.); (O.Q.)
| | - Muhammad Sohail Arshad
- The Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (K.N.); (P.M.); (M.S.A.); (S.A.); (O.Q.)
| | - Shahabuddin Ahmed
- The Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (K.N.); (P.M.); (M.S.A.); (S.A.); (O.Q.)
| | - Eleftherios G. Andriotis
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece;
| | - Neenu Singh
- The School of Allied Health Sciences, De Montfort University, The Gateway, Leicester LE1 9BH, UK;
| | - Omar Qutachi
- The Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (K.N.); (P.M.); (M.S.A.); (S.A.); (O.Q.)
| | - Ming-Wei Chang
- Nanotechnology and Integrated Bioengineering Centre, University of Ulster, Jordanstown Campus, Newtownabbey BT37 0QB, Northern Ireland, UK;
| | - Dimitrios G. Fatouros
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece;
- Correspondence: (D.G.F.); (Z.A.)
| | - Zeeshan Ahmad
- The Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (K.N.); (P.M.); (M.S.A.); (S.A.); (O.Q.)
- Correspondence: (D.G.F.); (Z.A.)
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Vizirianakis IS, Miliotou AN, Mystridis GA, Andriotis EG, Andreadis II, Papadopoulou LC, Fatouros DG. Tackling pharmacological response heterogeneity by PBPK modeling to advance precision medicine productivity of nanotechnology and genomics therapeutics. Expert Review of Precision Medicine and Drug Development 2019. [DOI: 10.1080/23808993.2019.1605828] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ioannis S. Vizirianakis
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Androulla N. Miliotou
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - George A. Mystridis
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleftherios G. Andriotis
- Laboratory of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis I. Andreadis
- Laboratory of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Lefkothea C. Papadopoulou
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios G. Fatouros
- Laboratory of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
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