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Khutoryanskiy VV, Smyslov RY, Yakimansky AV. Modern Methods for Studying Polymer Complexes in Aqueous and Organic Solutions. POLYMER SCIENCE SERIES A 2018. [DOI: 10.1134/s0965545x18050085] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Niranjan P, Alhalawani A, Phull S, Beniluz I, Krishnan B, Zalzal P, Towler M. Injectable glass polyalkenoate cements: evaluation of their rheological and mechanical properties with and without the incorporation of lidocaine hydrochloride. Biomed Phys Eng Express 2018. [DOI: 10.1088/2057-1976/aa952b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ribeiro LNM, Franz-Montan M, Breitkreitz MC, Alcântara ACS, Castro SR, Guilherme VA, Barbosa RM, de Paula E. Nanostructured lipid carriers as robust systems for topical lidocaine-prilocaine release in dentistry. Eur J Pharm Sci 2016; 93:192-202. [PMID: 27543066 DOI: 10.1016/j.ejps.2016.08.030] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 08/10/2016] [Accepted: 08/15/2016] [Indexed: 02/03/2023]
Abstract
In dental practice, local anesthesia causes pain, fear, and stress, and is frequently the reason that patients abandon treatment. Topical anesthetics are applied in order to minimize the discomfort caused by needle insertion and injection, and to reduce the symptoms of superficial trauma at the oral mucosa, but there are still no efficient commercially available formulations. Factorial design is a multivariate data analysis procedure that can be used to optimize the manufacturing processes of lipid nanocarriers, providing valuable information and minimizing development time. This work describes the use of factorial design to optimize a process for the preparation of nanostructured lipid carriers (NLC) based on cetyl palmitate and capric/caprylic triglycerides as structural lipids and Pluronic 68 as the colloidal stabilizer, for delivery of the local anesthetics lidocaine and prilocaine (both at 2.5%). The factors selected were the excipient concentrations, and three different responses were followed: particle size, polydispersity index and zeta potential. The encapsulation efficiency of the most effective formulations (NLC 2, 4, and 6) was evaluated by the ultrafiltration/centrifugation method. The formulations that showed the highest levels of encapsulation were tested using in vitro release kinetics experiments with Franz diffusion cells. The NLC6 formulation exhibited the best sustained release profile, with 59% LDC and 66% PLC released after 20h. This formulation was then characterized using different techniques (IR-ATR, DSC, DRX, TEM, and NTA) to obtain information about its molecular organization and its physicochemical stability, followed during 14months of storage at 25°C. This thorough pre-formulation study represents an important advance towards the development of an efficient pre-anesthetic for use in dentistry.
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Affiliation(s)
- Lígia N M Ribeiro
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil.
| | - Michelle Franz-Montan
- Department of Physiological Sciences, Dental School, UNICAMP, Piracicaba, São Paulo, Brazil
| | - Márcia C Breitkreitz
- Department of Analytical Chemistry, Institute of Chemistry, UNICAMP, Campinas, São Paulo, Brazil
| | - Ana C S Alcântara
- Department of Chemistry, Federal University of Maranhão, São Luís, Maranhão, Brazil
| | - Simone R Castro
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Viviane A Guilherme
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Raquel M Barbosa
- School of Biomedical Sciences at Guy's and St Thomas' Hospitals, Institute of Pharmaceutical Science, King's College London, United Kingdom
| | - Eneida de Paula
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
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Al Khateb K, Ozhmukhametova EK, Mussin MN, Seilkhanov SK, Rakhypbekov TK, Lau WM, Khutoryanskiy VV. In situ gelling systems based on Pluronic F127/Pluronic F68 formulations for ocular drug delivery. Int J Pharm 2016; 502:70-9. [PMID: 26899977 DOI: 10.1016/j.ijpharm.2016.02.027] [Citation(s) in RCA: 178] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 02/14/2016] [Accepted: 02/15/2016] [Indexed: 12/15/2022]
Abstract
This study evaluated the use of Pluronic F127 and Pluronic F68 as excipients for formulating in situ gelling systems for ocular drug delivery. Thermal transitions have been studied in aqueous solutions of Pluronic F127, Pluronic F68 as well as their binary mixtures using differential scanning calorimetry, rheological measurements, and dynamic light scattering. It was established that the formation of transparent gels at physiologically relevant temperatures is observed only in the case of 20 wt% of Pluronic F127. The addition of Pluronic F68 to Pluronic F127 solutions increases the gelation temperature of binary formulation to above physiological range of temperatures. The biocompatibility evaluation of these formulations using slug mucosa irritation assay and bovine corneal erosion studies revealed that these polymers and their combinations do not cause significant irritation. In vitro drug retention study on glass surfaces and freshly excised bovine cornea showed superior performance of 20 wt% Pluronic F127 compared to other formulations. In addition, in vivo studies in rabbits demonstrated better retention performance of 20 wt% Pluronic F127 compared to Pluronic F68. These results confirmed that 20 wt% Pluronic F127 offers an attractive ocular formulation that can form a transparent gel in situ under physiological conditions with minimal irritation.
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Affiliation(s)
- Kosai Al Khateb
- Reading School of Pharmacy, University of Reading, Whiteknights, PO Box 224, Reading RG6 6AD, United Kingdom
| | | | - Marat N Mussin
- Semey State Medical University, 103 Abai Street, Semey 071400, Kazakhstan
| | | | | | - Wing Man Lau
- Reading School of Pharmacy, University of Reading, Whiteknights, PO Box 224, Reading RG6 6AD, United Kingdom.
| | - Vitaliy V Khutoryanskiy
- Reading School of Pharmacy, University of Reading, Whiteknights, PO Box 224, Reading RG6 6AD, United Kingdom.
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Sánchez-Leija RJ, Pojman JA, Luna-Bárcenas G, Mota-Morales JD. Controlled release of lidocaine hydrochloride from polymerized drug-based deep-eutectic solvents. J Mater Chem B 2014; 2:7495-7501. [DOI: 10.1039/c4tb01407c] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
This work takes advantage of the transformation of lidocaine hydrochloride into deep-eutectic solvents (DESs) – ionic liquid analogues – to incorporate polymerizable counterparts into DESs, such that polymer–drug complexes are synthesized by free-radical frontal polymerization without the use of a solvent.
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Affiliation(s)
- R. J. Sánchez-Leija
- Polymer & Biopolymer Research Group
- Centro de Investigación y de Estudios Avanzados
- Querétaro, Mexico
| | - J. A. Pojman
- Department of Chemistry
- Louisiana State University
- Baton Rouge, USA
| | - G. Luna-Bárcenas
- Polymer & Biopolymer Research Group
- Centro de Investigación y de Estudios Avanzados
- Querétaro, Mexico
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Poly(Lactide-co-Glycolide) Nanocapsules Containing Benzocaine: Influence of the Composition of the Oily Nucleus on Physico-Chemical Properties and Anesthetic Activity. Pharm Res 2011; 28:1984-94. [DOI: 10.1007/s11095-011-0425-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Accepted: 03/08/2011] [Indexed: 11/25/2022]
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Holgado M, Arias J, Cózar M, Alvarez-Fuentes J, Gañán-Calvo A, Fernández-Arévalo M. Synthesis of lidocaine-loaded PLGA microparticles by flow focusing. Int J Pharm 2008; 358:27-35. [DOI: 10.1016/j.ijpharm.2008.02.012] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2007] [Revised: 02/11/2008] [Accepted: 02/11/2008] [Indexed: 10/22/2022]
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Abu-Huwaij R, Assaf S, Salem M, Sallam A. Mucoadhesive dosage form of lidocaine hydrochloride: I. Mucoadhesive and physicochemical characterization. Drug Dev Ind Pharm 2008; 33:855-64. [PMID: 17729103 DOI: 10.1080/03639040701377516] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The aim of this study was to characterize a buccal mucoadhesive film using lidocaine and its hydrochloride salt (LDHCL) as a model drug. Buccal films were developed using carbopol 971P as a mucoadhesive polymer, and glycerol as a plasticizer. Scanning Electron Microscope, Differential Scanning Calorimetry, X-ray powder diffraction, and Fourier Transform Infra Red techniques were used to characterize the mucoadhesive films. Bioadhesive properties were evaluated using the Universal Instron Instrument with chicken pouch as a model tissue. LDHCL and its base were present in carbopol 971P films in a molecular dispersion state without exerting any effect on the glass transition of these films. The mucoadhesive force between the chicken pouches and the film containing glycerol did not change by time during the tested period (1-20 min), while increased with increasing the amount of glycerol (10-40% w/w of polymer content). Furthermore, a linear increase in the mucoadhesive force was accompanied by the increase in the film thickness, while a linear decrease followed by plateau was obtained when loading the patch with LDHCL at concentration above 1 mg/cm(2). Loading carbopol film with lidocaine base, in a concentration up to 6 mg/cm(2) decreased linearly the mucoadhesive properties, which could be attributed to salt formation between the acidic carboxylic moiety of carbopol and basic lidocaine.
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Affiliation(s)
- Rana Abu-Huwaij
- Department of Pharmaceutics, College of Pharmacy and Medical Sciences, Al-Ahliyya Amman University, Amman, Jordan.
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Al Malyan M, Becchi C, Nikkola L, Viitanen P, Boncinelli S, Chiellini F, Ashammakhi N. Polymer-based biodegradable drug delivery systems in pain management. J Craniofac Surg 2006; 17:302-13. [PMID: 16633180 DOI: 10.1097/00001665-200603000-00018] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Pain is an unpleasant sensory experience commonly produced by damage to bodily tissues and it is one of the most significant public health problems, because 21.5% of the world population is estimated to suffer from pain. It results in a total loss of more than 165 billion US dollars each year in the United States alone. Pain reflects a mixture of various pathophysiologic, psychologic, and genetic contributions. When undertreated, pain usually results in serious immune and metabolic upset. Therefore, it requires wide understanding and intensive effort for a better management. Currently, pain control is limited by the modest efficiency of the used drugs, the serious side effects of these drugs, and the inefficacy of conventional drug administration. By the introduction of the technology of biodegradable controlled-release devices into clinical practice, pain control not only benefits from these novel methods for a better delivery of various drugs, but the side effects of the drugs are reduced because use of the devices improves patient compliance. Biodegradable controlled-release devices are polymer-based devices that are designed to deliver drugs locally in a predesigned manner. Recently, there was a high interest in developing these devices for the delivery of different drugs used for pain control. This paper first highlights the dimensions and basics of the problem of pain. Then, it presents an overview of the biodegradable polymers that are used in drug delivery systems and summarizes the studies carried out on these systems in the field of pain management. We refer to our experience in developing a device for multimodal drug delivery, including the use of nanotechnology. Future perspectives are also presented.
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Affiliation(s)
- Mohamed Al Malyan
- Department of Medical and Surgical Critical Care, Section of Anaesthesia and Intensive Care, Florence University, Florence, Italy
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Porcar I, Codoñer A, Gómez CM, Abad C, Campos A. Interactions of quinine with polyacrylic and poly-L-glutamic acids in aqueous solutions. Eur Polym J 2004. [DOI: 10.1016/j.eurpolymj.2003.11.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nurkeeva ZS, Khutoryanskiy VV, Mun GA, Sherbakova MV, Ivaschenko AT, Aitkhozhina NA. Polycomplexes of poly(acrylic acid) with streptomycin sulfate and their antibacterial activity. Eur J Pharm Biopharm 2004; 57:245-9. [PMID: 15018981 DOI: 10.1016/s0939-6411(03)00149-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2003] [Revised: 08/25/2003] [Accepted: 08/25/2003] [Indexed: 10/27/2022]
Abstract
Complex formation between streptomycin sulfate and poly(acrylic acid) has been studied in aqueous solutions by turbidimetric, potentiometric and viscometric methods as well as by FTIR spectroscopy. It was shown that these polycomplexes are stabilized by electrostatic interactions. The solubility of polycomplexes was examined as a function of pH and it was found that at pH values below 3.1 the polycomplexes undergo complete dissociation or dissolution. The antimicrobial activity of the drug and its polycomplex was evaluated using Sarcina sp. as a model organism. It was demonstrated that the polycomplexes have an antimicrobial activity on the same level as the free drug.
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Affiliation(s)
- Zauresh S Nurkeeva
- Department of Chemical Physics and Macromolecular Chemistry, Kazakh National University, Almaty, Kazakstan
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Nurkeeva ZS, Mun GA, Khutoryanskiy VV, Bitekenova AB, Dzhusupbekova AB, Park K. Soluble and crosslinked hydrophilic films based on compositions of poly(acrylic acid) and poly(2-hydroxyethyl vinyl ether) for controlled drug release. J Appl Polym Sci 2003. [DOI: 10.1002/app.12601] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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