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Ferrari G, Silveira da Silva L, Cerruti R, Gindri IDM, Salmoria GV, de Mello Roesler CR. Development and characterization of 3D printed ethylene vinyl acetate (EVA) as drug delivery device for the treatment of overactive bladder. Drug Dev Ind Pharm 2024; 50:285-296. [PMID: 38486377 DOI: 10.1080/03639045.2024.2311177] [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: 10/19/2023] [Accepted: 01/23/2024] [Indexed: 04/20/2024]
Abstract
The overactive bladder is a condition characterized by a sudden urge to urinate, even with small volumes of urine present in the bladder. The current treatments available for this pathology consist on conservative approaches and the continuous administration of drugs, which when made by conventional methods has limitations related to the first pass metabolism, bioavailability, severe side effects, and low patient adherence to treatments, ultimately leading to low effectiveness. Within this context, the present work proposes the design, manufacture, and characterization of an intravesical implant for the treatment of overactive bladder pathology, using EVA copolymer as a matrix and oxybutynin as a drug. The fabrication of devices through two manufacturing techniques (extrusion and additive manufacturing by fused filament fabrication, FFF) and the evaluation of the implants through characterization tests was proposed. The usability and functionality were evaluated through simulated insertion of the device/prototype in a bladder model through catheter insertion tests. The safety and effectiveness of the devices was investigated from mechanical testing as well as drug release assays. Drug release assays presented a burst release in the first 24 h, followed by a release of 1.8 and 2.8 mg/d, totalizing 32 d. Mechanical tests demonstrated an increase in the stiffness of the specimens due to the addition of the drug, showing a change in maximum stress and strain at break. The released dose was higher than that usually presented when considering the oral administration route, showing the optimization of the development of this implant has the potential to improve the quality of life of patients with overactive bladder.
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Affiliation(s)
- Gustavo Ferrari
- Iaso Biodelivery Fabricação de Dispositivos com Liberação de Fármacos LTDA, Florianópolis, Santa Catarina, Brazil
- Biomechanical Engineering Laboratory, University Hospital & Department of Mechanical Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Loise Silveira da Silva
- Iaso Biodelivery Fabricação de Dispositivos com Liberação de Fármacos LTDA, Florianópolis, Santa Catarina, Brazil
- Biomechanical Engineering Laboratory, University Hospital & Department of Mechanical Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Renata Cerruti
- Iaso Biodelivery Fabricação de Dispositivos com Liberação de Fármacos LTDA, Florianópolis, Santa Catarina, Brazil
| | - Izabelle de Mello Gindri
- Iaso Biodelivery Fabricação de Dispositivos com Liberação de Fármacos LTDA, Florianópolis, Santa Catarina, Brazil
- Bio meds Pharmaceutica LTDA, Florianópolis, Santa Catarina, Brazil
| | - Gean Vitor Salmoria
- Biomechanical Engineering Laboratory, University Hospital & Department of Mechanical Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
- NIMMA, Department of Mechanical Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Carlos Rodrigo de Mello Roesler
- Biomechanical Engineering Laboratory, University Hospital & Department of Mechanical Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
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2
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Bao Q, Fanse S, Lu XJ, Burgess DJ. Impact of drug loading on release from levonorgestrel intrauterine systems. Int J Pharm 2023; 631:122532. [PMID: 36565771 PMCID: PMC10324521 DOI: 10.1016/j.ijpharm.2022.122532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/26/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
Levonorgestrel intrauterine systems (LNG-IUSs) are polydimethylsiloxane (PDMS) based non-biodegradable complex drug-device combination products providing efficacy for up to several years based on the strength. A large amount of LNG (e.g., 52 mg in Mirena and Liletta) must be loaded in the LNG-IUS products to maintain the long-acting effect even though LNG is a potent hormone. However, the high amount of LNG not only poses the potential risk of dose dumping, but also leads to drug waste due to incomplete drug utilization close to the end of usage. It has been unclear whether the duration of usage of these products should be extended for full drug utilization or products with lower drug loading should be developed. Therefore, it is critical to understand the impact of strength (or drug loading) on drug release from LNG-IUSs. In the current study, drug reservoirs with a broad range of drug loading (from 0.5% w/w to 50% w/w) were prepared and assembled into LNG-IUSs. Different accelerated release conditions were used to perform release testing of LNG-IUSs with different drug loading. 5% to 10% variation in excipient of the LNG-IUSs did not significantly alter the drug release profiles of the LNG-IUSs. The release rate of LNG-IUSs is inversely proportional to their drug loading at high drug loading (10% w/w, 25% w/w and 50% w/w). Drug release was incomplete for LNG-IUS with low drug loading (2.5% w/w and 1% w/w) and no drug release could be detected for the LNG-IUS with 0.5% w/w drug loading. In addition, the burst effect of the LNG-IUSs with different drug loading was investigated. This is the first research report covering ultra-long duration (more than four years) of real-time drug release from LNG-IUSs with different drug loading (0.5%-50% w/w). The amount of excipient (PDMS) used in the reservoir of LNG-IUSs was determined to be not a critical quality parameter in the formulation design since LNG-IUSs (50% w/w drug loading) with up to 10% variation in excipient did not show significant differences in their release profiles. The drug release kinetics/mechanism remained the same for LNG-IUSs with drug loading ranging from 1% to 50%. In addition, the accelerated release testing methods were confirmed to be representative of the real-time release profiles and this can give confidence in extending the duration of usage for these products provided that the device remains physically intact (no tearing or damage in the outer membrane) and the release rate is within the therapeutic window. It is recommended to perform both real-time and accelerated release testing simultaneously for LNG-IUSs to understand the burst effect as well as the complete release characteristics. Lastly, drug/polymer interaction may play a role when designing LNG-IUS formulations with low drug loading (<5% w/w) since drug/polymer interaction is significant when only a small amount of drug present.
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Affiliation(s)
- Quanying Bao
- University of Connecticut, School of Pharmacy, Storrs, CT 06269, USA
| | - Suraj Fanse
- University of Connecticut, School of Pharmacy, Storrs, CT 06269, USA
| | - Xiaoyu James Lu
- University of Connecticut, School of Pharmacy, Storrs, CT 06269, USA
| | - Diane J Burgess
- University of Connecticut, School of Pharmacy, Storrs, CT 06269, USA.
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Abbasnezhad N, Shirinbayan M, Champmartin S, Bakir F. Analyzing the impact of pulsatile flow on drug release from a single strut of a drug-eluting stent. J Biomech 2023; 146:111425. [PMID: 36608544 DOI: 10.1016/j.jbiomech.2022.111425] [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: 04/21/2022] [Revised: 12/03/2022] [Accepted: 12/23/2022] [Indexed: 12/25/2022]
Abstract
In this study, in-vitro experiments were performed to investigate the drug release from a single strut of a drug-eluting stent with respect to the systolic-diastolic flow and the continuous flow. Regarding, a test bench comprising a single strut and agarose gel as an arterial wall model was designed. The model chosen represents a large-scaled strut of a stent, to limit the effect of the geometrical shape of the stents on the drug release results. The comparison is carried out between two continuous flow rates and a systolic-diastolic flow pattern varying between these two flow rates, with a frequency of 70 beats per minute. The stent model is a polylactic-co-glycolic acid film (50:50) loaded with 10 % diclofenac sodium. A compartment of agarose gel (1 %) and a phosphate-buffered saline solution at 37 °C are employed to mimic the arterial wall and the blood, respectively. Our results show the importance of flow type on the drug release from the stent and distribution of drug in the hydrogel, such that the pulsatility promotes an increase in the quantity of drug absorbed into the hydrogel.
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Affiliation(s)
- N Abbasnezhad
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France.
| | - M Shirinbayan
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France.
| | - S Champmartin
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France.
| | - F Bakir
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France.
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Abbasnezhad N, Zirak N, Champmartin S, Shirinbayan M, Bakir F. An Overview of In Vitro Drug Release Methods for Drug-Eluting Stents. Polymers (Basel) 2022; 14:2751. [PMID: 35808798 PMCID: PMC9269075 DOI: 10.3390/polym14132751] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 01/08/2023] Open
Abstract
The drug release profile of drug-eluting stents (DESs) is affected by a number of factors, including the formulation, design, and physicochemical properties of the utilized material. DES has been around for twenty years and despite its widespread clinical use, and efficacy in lowering the rate of target lesion restenosis, it still requires additional development to reduce side effects and provide long-term clinical stability. Unfortunately, for analyzing these implants, there is still no globally accepted in vitro test method. This is owing to the stent's complexity as well as the dynamic arterial compartments of the blood and vascular wall. The former is the source of numerous biological, chemical, and physical mechanisms that are more commonly observed in tissue, lumen, and DES. As a result, universalizing bio-relevant apparatus, suitable for liberation testing of such complex implants is difficult. This article aims to provide a comprehensive review of the methods used for in vitro release testing of DESs. Aspects related to the correlation of the release profiles in the cases of in vitro and in vivo are also addressed.
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Affiliation(s)
- Navideh Abbasnezhad
- Arts et Métiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France; (N.Z.); (S.C.)
- Arts et Métiers Institute of Technology, CNAM, PIMM, HESAM University, F-75013 Paris, France;
| | - Nader Zirak
- Arts et Métiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France; (N.Z.); (S.C.)
- Arts et Métiers Institute of Technology, CNAM, PIMM, HESAM University, F-75013 Paris, France;
| | - Stéphane Champmartin
- Arts et Métiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France; (N.Z.); (S.C.)
| | - Mohammadali Shirinbayan
- Arts et Métiers Institute of Technology, CNAM, PIMM, HESAM University, F-75013 Paris, France;
| | - Farid Bakir
- Arts et Métiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France; (N.Z.); (S.C.)
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Ferrari G, Thives Mello A, Melo G, de Mello Roesler CR, Salmoria GV, de Souza Pinto LP, de Mello Gindri I, Gindri M. Polymeric implants with drug-releasing capabilities: a mapping review of laboratory research. Drug Dev Ind Pharm 2021; 47:1535-1545. [PMID: 35171071 DOI: 10.1080/03639045.2022.2043354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
PURPOSE To provide a systematic map of the nature and extent of preclinical research concerning drug-releasing polymeric implants. SIGNIFICANCE By summarizing available data, this mapping review can guide the development of new drug-delivery devices. METHODS In-vitro studies assessing drug-delivery implants were reviewed. A study protocol was registered at Open Science Framework. The association of polymers with prominent drugs, manufacturing processes, geometries, treatments, and anatomical locations was assessed using the VOSviewer software. The release periods were also evaluated. RESULTS A total of 423 articles, published between 1975 and 2020, were included and grouped into a framework with nine main categories. More than half of studies were published between 2010 and 2020. Among 201 individual polymers or combinations, the most investigated were PLGA, PCL, PLA, Silicone (SIL), EVA, and PU. Similarly, from 232 individual drugs or combinations, the most prominent were dexamethasone (DEX; anti-inflammatory), paclitaxel (PTX; anticancer), fluoruracil (anticancer), ciprofloxacin (CFX) hydrochloride (antibiotic), and gentamicin (GS; antibiotic). A total of 51 manufacturing processes were encountered, of which the most reported were solvent evaporation, compression molding (CM), extrusion (EX), electrospinning (ELS), and melt molding (MM). Among 38 implant geometries, cylinder (CIL) was the most prominent, followed by disk, square film, circular film (FCIR), and undefined film. Release times varied greatly, although the majority of articles ranged between 5 and 300 d. CONCLUSIONS Drug-delivery implants were highly heterogeneous due to its applicability for multiple health conditions. Most implants were made of PLGA and most drugs assessed presented anti-inflammatory, antibiotic, or anticancer effects. Solvent evaporation and CIL were the most prominent manufacturing process and geometry, respectively.
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Affiliation(s)
- Gustavo Ferrari
- Iaso Biodelivery Fabricação de Dispositivos com Liberação de Fármacos LTDA, Florianópolis, Brazil.,Mechanical Engineering Department, Biomechanical Engineering Laboratory, University Hospital and Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | - Arthur Thives Mello
- Postgraduate Program in Nutrition, Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | - Gilberto Melo
- Postgraduate Program in Dentistry, Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | - Carlos Rodrigo de Mello Roesler
- Mechanical Engineering Department, Biomechanical Engineering Laboratory, University Hospital and Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | - Gean Vitor Salmoria
- Mechanical Engineering Department, Biomechanical Engineering Laboratory, University Hospital and Federal University of Santa Catarina (UFSC), Florianópolis, Brazil.,Mechanical Engineering Department., NIMMA - Núcleo de Inovação em Moldagem e Manufatura Aditiva, Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | | | - Izabelle de Mello Gindri
- Iaso Biodelivery Fabricação de Dispositivos com Liberação de Fármacos LTDA, Florianópolis, Brazil.,Bio meds Pharmaceutica LTDA, Florianópolis, Brazil
| | - Mello Gindri
- Iaso Biodelivery Fabricação de Dispositivos com Liberação de Fármacos LTDA, Florianópolis, Santa Catarina, Brazil.,Bio meds Pharmaceutica LTDA, Florianópolis, Santa Catarina, Brazil
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Abbasnezhad N, Shirinbayan M, Chabi F, Champmartin S, Tcharkhtchi A, Bakir F. Viscoelastic Behavior of Drug-Loaded Polyurethane. Polymers (Basel) 2021; 13:2608. [PMID: 34451148 PMCID: PMC8400544 DOI: 10.3390/polym13162608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/30/2021] [Accepted: 08/03/2021] [Indexed: 02/07/2023] Open
Abstract
Drug-eluting stents are desirable platforms for local medicine delivery. However, the incorporation of drugs into polymers can influence the mechanical and physicochemical properties of said matrix, which is a topic that is still poorly understood. In fact, this is more noticeable since the apposition is most often accompanied by mechanical stresses on the polymer coating, which can induce therapeutic failure that can result in death. It is therefore necessary to better understand their behavior by examining their properties in conditions such as those in living beings. We studied polyurethane drug carriers made in-house. Diclofenac epolamine was chosen as a model hydrophilic medicine. We used thermal measurements (DMTA) and tensile tests. The aim was to establish the influence of the loading and release of the drug on the physicochemical properties of this polymer in the presence of a stagnant or circulating fluid medium, phosphate-buffered saline (PBS). For the two PU/drug loadings studied, the effect of the initial drug load was more marked. The free volume fraction and the number of pores in the samples increased with the increasing percent of the drug and with release time. The kinetic profiles were accelerated with the loading ratio and with the presence of flow. Young's modulus and ultimate stress were not significantly influenced by the release time. A relevant relationship between the tensile properties and the viscoelastic behavior of the samples was developed. Our results have implications for optimizing the performance of drug coatings for stents.
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Affiliation(s)
- Navideh Abbasnezhad
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France
- Arts et Metiers Institute of Technology, CNAM, PIMM, HESAM University, F-75013 Paris, France
| | - Mohammadali Shirinbayan
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France
- Arts et Metiers Institute of Technology, CNAM, PIMM, HESAM University, F-75013 Paris, France
| | - Fatiha Chabi
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France
| | - Stephane Champmartin
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France
| | - Abbas Tcharkhtchi
- Arts et Metiers Institute of Technology, CNAM, PIMM, HESAM University, F-75013 Paris, France
| | - Farid Bakir
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France
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Song J, Kouidri S, Bakir F. Review on the numerical investigations of mass transfer from drug eluting stent. Biocybern Biomed Eng 2021. [DOI: 10.1016/j.bbe.2021.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abbasnezhad N, Zirak N, Shirinbayan M, Tcharkhtchi A, Bakir F. On the importance of physical and mechanical properties of PLGA films during drug release. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102446] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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9
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Abbasnezhad N, Kebdani M, Shirinbayan M, Champmartin S, Tcharkhtchi A, Kouidri S, Bakir F. Development of a Model Based on Physical Mechanisms for the Explanation of Drug Release: Application to Diclofenac Release from Polyurethane Films. Polymers (Basel) 2021; 13:1230. [PMID: 33920267 PMCID: PMC8069626 DOI: 10.3390/polym13081230] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/04/2021] [Accepted: 04/07/2021] [Indexed: 11/16/2022] Open
Abstract
In this study, we present a method for prediction of the drug-release profile based on the physical mechanisms that can intervene in drug release from a drug-carrier. The application presented here incorporates the effects of drug concentration and Reynolds number defining the circulating flow in the testing vein. The experimental data used relate to the release of diclofenac from samples of non-degradable polyurethane subjected to static and continuous flow. This case includes simultaneously three mechanisms: burst-release, diffusion and osmotic pressure, identified beforehand here as being able to contribute to the drug liberation. For this purpose, authors coded the Sequential Quadratic Programming Algorithm to solve the problem of non-linear optimization. The experimental data used to develop the mathematical model obtained from release studies carried out in water solution at 37 °C, for three concentrations of diclofenac and two water flow rates. We discuss the contribution of mechanisms and kinetics by considering two aforementioned parameters and, following that, we obtain the specific-model and compare the calculated results with the experimental results for the reserved cases. The results showed that drug percentage mostly affect the burst release, however flow rate has affected the osmotic release. In addition, release kinetics of all the mechanisms have increased by increasing the values of two considered parameters.
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Affiliation(s)
- Navideh Abbasnezhad
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France; (M.K.); (M.S.); (S.C.); (S.K.); (F.B.)
- Arts et Metiers Institute of Technology, CNAM, PIMM, HESAM University, F-75013 Paris, France;
| | - Mohamed Kebdani
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France; (M.K.); (M.S.); (S.C.); (S.K.); (F.B.)
| | - Mohammadali Shirinbayan
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France; (M.K.); (M.S.); (S.C.); (S.K.); (F.B.)
- Arts et Metiers Institute of Technology, CNAM, PIMM, HESAM University, F-75013 Paris, France;
| | - Stéphane Champmartin
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France; (M.K.); (M.S.); (S.C.); (S.K.); (F.B.)
| | - Abbas Tcharkhtchi
- Arts et Metiers Institute of Technology, CNAM, PIMM, HESAM University, F-75013 Paris, France;
| | - Smaine Kouidri
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France; (M.K.); (M.S.); (S.C.); (S.K.); (F.B.)
| | - Farid Bakir
- Arts et Metiers Institute of Technology, CNAM, LIFSE, HESAM University, F-75013 Paris, France; (M.K.); (M.S.); (S.C.); (S.K.); (F.B.)
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Abbasnezhad N, Zirak N, Shirinbayan M, Kouidri S, Salahinejad E, Tcharkhtchi A, Bakir F. Controlled release from polyurethane films: Drug release mechanisms. J Appl Polym Sci 2020. [DOI: 10.1002/app.50083] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Navideh Abbasnezhad
- Arts et Metiers Institute of Technology, CNAM, LIFSE HESAM University Paris France
- Arts et Metiers Institute of Technology, CNAM, PIMM HESAM University Paris France
| | - Nader Zirak
- Arts et Metiers Institute of Technology, CNAM, LIFSE HESAM University Paris France
- Faculty of Materials Science and Engineering K. N. Toosi University of Technology Tehran Iran
| | - Mohammadali Shirinbayan
- Arts et Metiers Institute of Technology, CNAM, LIFSE HESAM University Paris France
- Arts et Metiers Institute of Technology, CNAM, PIMM HESAM University Paris France
| | | | - Erfan Salahinejad
- Faculty of Materials Science and Engineering K. N. Toosi University of Technology Tehran Iran
| | - Abbas Tcharkhtchi
- Arts et Metiers Institute of Technology, CNAM, PIMM HESAM University Paris France
| | - Farid Bakir
- Arts et Metiers Institute of Technology, CNAM, LIFSE HESAM University Paris France
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