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Figueiredo MP, Borrego-Sánchez A, García-Villén F, Miele D, Rossi S, Sandri G, Viseras C, Constantino VRL. Polymer/Iron-Based Layered Double Hydroxides as Multifunctional Wound Dressings. Pharmaceutics 2020; 12:E1130. [PMID: 33238477 PMCID: PMC7700130 DOI: 10.3390/pharmaceutics12111130] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 11/16/2022] Open
Abstract
This work presents the development of multifunctional therapeutic membranes based on a high-performance block copolymer scaffold formed by polyether (PE) and polyamide (PA) units (known as PEBA) and layered double hydroxide (LDH) biomaterials, with the aim to study their uses as wound dressings. Two LDH layer compositions were employed containing Mg2+ or Zn2+, Fe3+ and Al3+ cations, intercalated with chloride anions, abbreviated as Mg-Cl or Zn-Cl, or intercalated with naproxenate (NAP) anions, abbreviated as Mg-NAP or Zn-NAP. Membranes were structurally and physically characterized, and the in vitro drug release kinetics and cytotoxicity assessed. PEBA-loading NaNAP salt particles were also prepared for comparison. Intercalated NAP anions improved LDH-polymer interaction, resulting in membranes with greater mechanical performance compared to the polymer only or to the membranes containing the Cl-LDHs. Drug release (in saline solution) was sustained for at least 8 h for all samples and release kinetics could be modulated: a slower, an intermediate and a faster NAP release were observed from membranes containing Zn-NAP, NaNAP and Mg-NAP particles, respectively. In general, cell viability was higher in the presence of Mg-LDH and the membranes presented improved performance in comparison with the powdered samples. PEBA containing Mg-NAP sample stood out among all membranes in all the evaluated aspects, thus being considered a great candidate for application as multifunctional therapeutic dressings.
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Affiliation(s)
- Mariana Pires Figueiredo
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo—USP, Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil;
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada—UGR, Campus of Cartuja s/n, 18071 Granada, Spain; (A.B.-S.); (F.G.-V.)
- Andalusian Institute of Earth Sciences, Consejo Superior de Investigaciones Científicas-University of Granada, Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain
| | - Ana Borrego-Sánchez
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada—UGR, Campus of Cartuja s/n, 18071 Granada, Spain; (A.B.-S.); (F.G.-V.)
- Andalusian Institute of Earth Sciences, Consejo Superior de Investigaciones Científicas-University of Granada, Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain
| | - Fátima García-Villén
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada—UGR, Campus of Cartuja s/n, 18071 Granada, Spain; (A.B.-S.); (F.G.-V.)
| | - Dalila Miele
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (D.M.); (S.R.); (G.S.)
| | - Silvia Rossi
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (D.M.); (S.R.); (G.S.)
| | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (D.M.); (S.R.); (G.S.)
| | - César Viseras
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada—UGR, Campus of Cartuja s/n, 18071 Granada, Spain; (A.B.-S.); (F.G.-V.)
- Andalusian Institute of Earth Sciences, Consejo Superior de Investigaciones Científicas-University of Granada, Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain
| | - Vera Regina Leopoldo Constantino
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo—USP, Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil;
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Gato K, Shikaku R, Kato S, Yoshimura-Fujii M, Koide T, Fukami T. [Pharmaceutical Properties of Anti-inflammatory Analgesic Patches Using Acrylic Polymer]. YAKUGAKU ZASSHI 2020; 140:1175-1183. [PMID: 32879249 DOI: 10.1248/yakushi.20-00108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The mock patches were prepared with novel acrylic polymers as adhesive layer where biphenyl-4-ylacetic acid (BAA) or 2-(2-fluorobiphenyl-4-yl) propanoic acid (FPA) was used as model active pharmaceutical ingredients (APIs). In addition, the mock patches were formulated with typical ester ingredients for transdermal dosage forms. The molecular state of the model APIs in the adhesive layer was observed by polarized microscope and microscopic Raman spectroscopy, which contains both conventional and low frequency (LF) region. Crystallization behavior would be depended on the interaction between API and polymers in the adhesive layer. In particular, LF Raman measurement was useful to discriminate API polymorphs. The pharmaceutical properties including dissolution and skin permeation of APIs were also evaluated for mock patches. The drug release and transdermal permeation were enhanced with the ester ingredients such as isopropyl myristate and diethyl sebacate due to their diffusion to the test solution or the skin stratum corneum as well as reducing the interaction between API and polymers. Further, the tack strength was not changed, but the peel strength was weakened by the additives. Thus, the adhesive properties were controllable by formulation with the additives. These findings could enable to evaluate the interaction between API and the polymers for adhesive layer and select the appropriate polymer and additives for used APIs when designing the drug products.
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Affiliation(s)
- Katsuhiko Gato
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University
| | - Ryogo Shikaku
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University
| | - Suguru Kato
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University
| | | | - Tatsuo Koide
- Division of Drugs, National Institute of Health Sciences
| | - Toshiro Fukami
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University
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Chakravarty K, Dalal DC. A Nonlinear Mathematical Model of Drug Delivery from Polymeric Matrix. Bull Math Biol 2018; 81:105-130. [PMID: 30298197 DOI: 10.1007/s11538-018-0519-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 09/28/2018] [Indexed: 12/30/2022]
Abstract
The objective of the present study is to mathematically model the integrated kinetics of drug release in a polymeric matrix and its ensuing drug transport to the encompassing biological tissue. The model embodies drug diffusion, dissolution, solubilization, polymer degradation and dissociation/recrystallization phenomena in the polymeric matrix accompanied by diffusion, advection, reaction, internalization and specific/nonspecific binding in the biological tissue. The model is formulated through a system of nonlinear partial differential equations which are solved numerically in association with pertinent set of initial, interface and boundary conditions using suitable finite difference scheme. After spatial discretization, the system of nonlinear partial differential equations is reduced to a system of nonlinear ordinary differential equations which is subsequently solved by the fourth-order Runge-Kutta method. The model simulations deal with the comparison between a drug delivery from a biodegradable polymeric matrix and that from a biodurable polymeric matrix. Furthermore, simulated results are compared with corresponding existing experimental data to manifest the efficaciousness of the advocated model. A quantitative analysis is performed through numerical computation relied on model parameter values. The numerical results obtained reveal an estimate of the effects of biodegradable and biodurable polymeric matrices on drug release rates. Furthermore, through graphical representations, the sensitized impact of the model parameters on the drug kinetics is illustrated so as to assess the model parameters of significance.
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Affiliation(s)
- Koyel Chakravarty
- Department of Mathematics, Indian Institute of Technology Guwahati, Guwahati, 781039, India.
| | - D C Dalal
- Department of Mathematics, Indian Institute of Technology Guwahati, Guwahati, 781039, India
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Belizón M, Fernández-Ponce M, Casas L, Mantell C, Martínez de la Ossa-Fernández E. Supercritical impregnation of antioxidant mango polyphenols into a multilayer PET/PP food-grade film. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2018.03.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Sarver JA, Sumey JL, Williams ML, Bishop JP, Dean DM, Kiran E. Foaming of poly(ethylene-co-vinyl acetate) and poly(ethylene-co-vinyl acetate-co-carbon monoxide) and their blends with carbon dioxide. J Appl Polym Sci 2017. [DOI: 10.1002/app.45841] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Joseph A. Sarver
- Department of Chemical Engineering; Virginia Tech; Blacksburg Virginia 24061
| | - Jenna L. Sumey
- Department of Chemical Engineering; Virginia Tech; Blacksburg Virginia 24061
| | - Michael L. Williams
- Department of Chemical Engineering; Virginia Tech; Blacksburg Virginia 24061
| | | | - David M. Dean
- DuPont Performance Materials; Wilmington Delaware 19803
| | - Erdogan Kiran
- Department of Chemical Engineering; Virginia Tech; Blacksburg Virginia 24061
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Kankala RK, Zhang YS, Wang SB, Lee CH, Chen AZ. Supercritical Fluid Technology: An Emphasis on Drug Delivery and Related Biomedical Applications. Adv Healthc Mater 2017; 6:10.1002/adhm.201700433. [PMID: 28752598 PMCID: PMC5849475 DOI: 10.1002/adhm.201700433] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 05/12/2017] [Indexed: 12/18/2022]
Abstract
During the past few decades, supercritical fluid (SCF) has emerged as an effective alternative for many traditional pharmaceutical manufacturing processes. Operating active pharmaceutical ingredients (APIs) alone or in combination with various biodegradable polymeric carriers in high-pressure conditions provides enhanced features with respect to their physical properties such as bioavailability enhancement, is of relevance to the application of SCF in the pharmaceutical industry. Herein, recent advances in drug delivery systems manufactured using the SCF technology are reviewed. We provide a brief description of the history, principle, and various preparation methods involved in the SCF technology. Next, we aim to give a brief overview, which provides an emphasis and discussion of recent reports using supercritical carbon dioxide (SC-CO2 ) for fabrication of polymeric carriers, for applications in areas related to drug delivery, tissue engineering, bio-imaging, and other biomedical applications. We finally summarize with perspectives.
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Affiliation(s)
- Ranjith Kumar Kankala
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, P. R. China
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Shi-Bin Wang
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, P. R. China
| | - Chia-Hung Lee
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 97401, Taiwan
| | - Ai-Zheng Chen
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, P. R. China
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
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Drug loading of polymer implants by supercritical CO 2 assisted impregnation: A review. J Control Release 2015; 209:248-59. [DOI: 10.1016/j.jconrel.2015.05.002] [Citation(s) in RCA: 158] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 04/30/2015] [Accepted: 05/02/2015] [Indexed: 01/24/2023]
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Arici M, Topbas O, Karavana SY, Ertan G, Sariisik M, Ozturk C. Preparation of naproxen-ethyl cellulose microparticles by spray-drying technique and their application to textile materials. J Microencapsul 2014; 31:654-66. [PMID: 24861324 DOI: 10.3109/02652048.2014.913722] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The objective of this study is to develop a new textile-based drug delivery system containing naproxen (NAP) microparticles and to evaluate the potential of the system as the carrier of NAP for topical delivery. Microparticles were prepared by spray-drying using an aqueous ethyl cellulose dispersion. The drug content and entrapment efficiency, particle size and distribution, particle morphology and in vitro drug release characteristics of microparticles were optimized for the application of microparticles onto the textile fabrics. Microparticles had spherical shape in the range of 10-15 μm and a narrow particle size distribution. NAP encapsulated in microparticles was in the amorphous or partially crystalline nature. Microparticles were tightly fixed onto the textile fabrics. In vitro drug release exhibited biphasic release profile with an initial burst followed by a very slow release. Skin permeation profiles were observed to follow near zero-order release kinetics.
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Affiliation(s)
- Mesut Arici
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ege University , Izmir , Turkey
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Cilurzo F, Selmin F, Gennari CGM, Montanari L, Minghetti P. Application of methyl methacrylate copolymers to the development of transdermal or loco-regional drug delivery systems. Expert Opin Drug Deliv 2014; 11:1033-45. [DOI: 10.1517/17425247.2014.912630] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Domingo C, Saurina J. An overview of the analytical characterization of nanostructured drug delivery systems: towards green and sustainable pharmaceuticals: a review. Anal Chim Acta 2012; 744:8-22. [PMID: 22935368 DOI: 10.1016/j.aca.2012.07.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 07/06/2012] [Accepted: 07/09/2012] [Indexed: 10/28/2022]
Abstract
The analytical characterization of drug delivery systems prepared by means of green manufacturing technologies using CO(2) as a processing fluid is here reviewed. The assessment of the performance of nanopharmaceuticals designed for controlled drug release may result in a complex analytical issue and multidisciplinary studies focused on the evaluation of physicochemical, morphological and textural properties of the products may be required. The determination of the drug content as well as the detection of impurities and solvent residues are often carried out by chromatography. Assays on solid state samples relying on X-ray, vibrational and nuclear magnetic resonance spectroscopies are of great interests to study the composition and structure of pharmaceutical forms. The morphology and size of particles are commonly checked by microscopy and complementary chemical information can be extracted in combination with spectroscopic accessories. Regarding the thermal behavior, calorimetric and thermogravimetric techniques are applied to assess the thermal transitions and stability of the samples. The evaluation of drug release profiles from the nanopharmaceuticals can be based on various experimental set-ups depending on the administration route to be considered. Kinetic curves showing the evolution of the drug concentration as a function of time in various physiological conditions (e.g., gastric, plasmatic or topical) are recorded commonly by UV-vis spectroscopy and/or chromatography. Representative examples are commented in detail to illustrate the characterization strategies.
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Affiliation(s)
- Concepción Domingo
- Instituto de Ciencia de Materiales de Barcelona (CSIC), Campus de la UAB s/n, 08193 Bellaterra, Spain
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