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Saatkamp RH, Dos Santos BM, Sanches MP, Conte J, Rauber GS, Caon T, Parize AL. Drug-excipient compatibility studies in formulation development: A case study with benznidazole and monoglycerides. J Pharm Biomed Anal 2023; 235:115634. [PMID: 37595356 DOI: 10.1016/j.jpba.2023.115634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/25/2023] [Accepted: 08/07/2023] [Indexed: 08/20/2023]
Abstract
Monoglycerides (MGs) such as glycerol monolaurate (GML) and glycerol monostearate (GMS) have been used as excipients in oral formulations because of their emulsifying effect as well as their ability to inhibit the precipitation and intestinal efflux of drugs. Excipient-drug compatibility studies, however, have been underexplored. In this study, benznidazole (BNZ) was selected as a drug model due to the difficulty in improving its solubility and because of the potential impact on public health (it is the only drug currently used to treat Chagas disease). The effect of different processing conditions (maceration, ball milling, and melting) on the physical-chemistry properties of BNZ/MGs mixtures was investigated to guide the rational development of new solid formulations. GML was more effective in improving the solubility of BNZ, which could be due to its more malleable structure, less hydrophobic nature, and greater interaction with BNZ. The formation of hydrogen bonds between the imidazole group of BNZ and the polar region of GML was confirmed by spectroscopy analyses (IR, 1H NMR). The higher the monoglyceride content in the mixture, the higher the BNZ solubility. Regardless of the method of processing the mixture, the drug was found to be crystalline. Polarized light microscopy analysis showed the presence of spherulites. Overall, these findings suggest that preparation methods of BNZ:MGs formulations that involve thermal or/and mechanical treatment have a low impact on the solid properties of the material, and this allows for the production of formulations with reproducible performance.
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Affiliation(s)
- Rodrigo Henrique Saatkamp
- Polymeric Materials Research Group, Chemistry Department, Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Bruna Mattos Dos Santos
- Polymeric Materials Research Group, Chemistry Department, Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Mariele Paludetto Sanches
- Polymeric Materials Research Group, Chemistry Department, Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Julia Conte
- Postgraduate Program in Pharmacy (PGFAR), Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Gabriela Schneider Rauber
- Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 241/27, 779 00 Olomouc, Czech Republic
| | - Thiago Caon
- Postgraduate Program in Pharmacy (PGFAR), Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Alexandre Luis Parize
- Polymeric Materials Research Group, Chemistry Department, Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil.
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Moura SK, dos Santos ML, do Nascimento LA, da Silva MF, de França GM, da Costa LM, Medeiros AC, Araújo-Júnior RF, de Araújo AA, Oliveira CN, Dorini AL, de Carvalho RA, Borges BC, da Silva-Júnior AA, Galvão HC. Design of a thermosensitive ibuprofen-loaded nanogel as smart material applied as anti-inflammatory in tooth bleaching: An in vivo study. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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3
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Zhou M, Foudazi R. Effect of Cosurfactant on Structure and Properties of Polymerized High Internal Phase Emulsions (PolyHIPEs). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7907-7918. [PMID: 34153186 DOI: 10.1021/acs.langmuir.1c00419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Porous polymerized high internal phase emulsion (polyHIPE) monoliths are synthesized by using Span 80 with different cosurfactants. The results reveal that the void size can be reduced by employing cosurfactants, except for Tween 20. Furthermore, the openness of polyHIPEs changes by using different cosurfactants or by varying their concentration. To further investigate the effect of cosurfactants, we perform rheology measurements on the interface of the aqueous and oil phase. This study demonstrates the important role of interfacial elasticity in the successful preparation of polyHIPEs with different morphologies. Additionally, this study suggests that the increase in interfacial elasticity hinders the formation of interconnections between pores, known as windows. Finally, the compression test is performed to investigate the effect of the pore structure on the mechanical properties.
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Affiliation(s)
- Muchu Zhou
- Department of Chemical and Materials Engineering, New Mexico State University, Las Cruces, New Mexico 88003, United States
| | - Reza Foudazi
- Department of Chemical and Materials Engineering, New Mexico State University, Las Cruces, New Mexico 88003, United States
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The combination of starch nanoparticles and Tween 80 results in enhanced emulsion stability. Int J Biol Macromol 2020; 163:2048-2059. [PMID: 32961176 DOI: 10.1016/j.ijbiomac.2020.09.111] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 02/03/2023]
Abstract
In this work, we aimed to investigate the effect of the combination of starch nanoparticles (SNPs) and Tween 80 (TW) on the stability of oil-in-water emulsions. The emulsions prepared under different SNPs/TW ratios and different oil fraction values were characterized by means of photography, optical microscopy, laser particle size analysis, rheological measurement, quartz crystal microbalance analysis, and confocal laser scanning microscopy. At an oil fraction value of 0.4, the emulsions with a 3: 1 ratio of SNPs (1.5%, w/v) to TW (0.5%, w/v) exhibited excellent storage stability over a long period of 30 d, which was significantly better than the 2% TW stabilized emulsion and the 2% SNPs stabilized emulsion. Compared with the SNPs stable emulsions, the presence of TW decreased the emulsion droplets size, which was beneficial to reduce the aggregation of droplets. Emulsions co-stabilized by SNPs and TW can maintain good performance under harsh conditions. The results of quartz crystal microbalance analysis and isothermal titration calorimetry revealed non-covalent interactions between SNPs and TW. The results showed that SNPs and TW co-existed at the oil-water interface and improved the performance of the emulsion.
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Sarker DK. Architectures and Mechanical Properties of Drugs and Complexes of Surface-Active Compounds at Air-Water and Oil-Water Interfaces. Curr Drug Discov Technol 2020; 16:11-29. [PMID: 29149812 DOI: 10.2174/1570163814666171117132202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 11/10/2017] [Accepted: 11/10/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Drugs can represent a multitude of compounds from proteins and peptides, such as growth hormones and insulin and on to simple organic molecules such as flurbiprofen, ibuprofen and lidocaine. Given the chemical nature of these compounds two features are always present. A portion or portions of the molecule that has little affinity for apolar surfaces and media and on the contrary a series of part or one large part that has considerable affinity for hydrophilic, polar or charged media and surfaces. A series of techniques are routinely used to probe the molecular interactions that can arise between components, such as the drug, a range of surface- active excipients and flavor compounds, for example terpenoids and the solvent or dispersion medium. RESULTS Fifty-eight papers were included in the review, a large number (16) being of theoretical nature and an equally large number (14) directly pertaining to medicine and pharmacy; alongside experimental data and phenomenological modelling. The review therefore simultaneously represents an amalgam of review article and research paper with routinely used or established (10) and well-reported methodologies (also included in the citations within the review). Experimental data included from various sources as diverse as foam micro-conductivity, interferometric measurements of surface adsorbates and laser fluorescence spectroscopy (FRAP) are used to indicate the complexity and utility of foams and surface soft matter structures for a range of purposes but specifically, here for encapsulation and incorporation of therapeutics actives (pharmaceutical molecules, vaccines and excipients used in medicaments). Techniques such as interfacial tensiometry, interfacial rheology (viscosity, elasticity and visco-elasticity) and nanoparticle particle size (hydrodynamic diameter) and charge measurements (zeta potential), in addition to atomic force and scanning electron microscopy have proven to be very useful in understanding how such elemental components combine, link or replace one another (competitive displacement). They have also proven to be both beneficial and worthwhile in the sense of quantifying the unseen actions and interplay of adsorbed molecules and the macroscopic effects, such as froth formation, creaming or sedimentation that can occur as a result of these interactions. CONCLUSION The disclosures and evaluations presented in this review confirm the importance of a theoretical understanding of a complex model of the molecular interactions, network and present a framework for the understanding of really very complex physical forms. Future therapeutic developers rely on an understanding of such complexity to garner a route to a more successful administration and formulation of a new generation of therapeutic delivery systems for use in medicine.
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Affiliation(s)
- Dipak K Sarker
- Interfacial Nanotechnology Group, School of Pharmacy and Biomolecular Sciences, The University of Brighton, Moulsecoomb Campus, Lewes Road, Brighton, BN2 4GJ, United Kingdom
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Letícia Streck, . Doro PNDM, Fernandes-Pedrosa MF, da Silva-Júnior AA. High Performance Liquid Chromatography–Diode Array Detector Method for Benznidazole Quantitation in Lipid Based and Self Assembling Cyclodextrins Drug Delivery Systems. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s1061934820070163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Hussein MA, Mohammed AA, Atiya MA. Application of emulsion and Pickering emulsion liquid membrane technique for wastewater treatment: an overview. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:36184-36204. [PMID: 31776903 DOI: 10.1007/s11356-019-06652-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 09/30/2019] [Indexed: 05/26/2023]
Abstract
According a wide range of relevant literature, the emulsion liquid membrane technique (ELM) is considered an efficient method to separate and recover organic and inorganic contaminants that could otherwise be released into the environment. One important limitation of ELM process concerns the stabilization and de-stabilization of emulsion globules. To address this, over the last few years, a new ELM trend known as the Pickering emulsion liquid membrane (PELM) has been developed. PELM involves nanoparticle concepts to achieve a more stable emulsion for wastewater treatment. In this article, ELM and PELM techniques, preparation methods, characteristics, stabilization methods (i.e., mechanical and ultrasound emulsification), and de-stabilization (i.e., swelling, leakage and coalescence) of the emulsion are reviewed and described. In addition, various parameters that could impact ELM stability, extraction, and recovery, such as emulsification speed and time, surfactant, carrier, internal agent, diluent, stirring speed, internal to membrane ratio, type of organic membrane, and treatment ratio, are also presented and discussed.
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Affiliation(s)
- Maad A Hussein
- Environmental Engineering Department, College of Engineering, University of Baghdad, Baghdad, Iraq.
| | - Ahmed A Mohammed
- Environmental Engineering Department, College of Engineering, University of Baghdad, Baghdad, Iraq
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Tailoring microstructural, drug release properties, and antichagasic efficacy of biocompatible oil-in-water benznidazol-loaded nanoemulsions. Int J Pharm 2018; 555:36-48. [PMID: 30448310 DOI: 10.1016/j.ijpharm.2018.11.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 11/12/2018] [Accepted: 11/15/2018] [Indexed: 12/25/2022]
Abstract
This study explored the transition of lamellar-type liquid crystal (LLC) to biocompatible oil-in-water nanoemulsions able to modify benznidazole (BNZ) release and target the drug to cells infected with the T. cruzi parasite. Three cosolvents (2methylpyrrolidone [NMP], polyethylene glycol [POL], and propylene glycol [PRO] were tested to induce the transition of anisotropic LLC systems to isotropic nanoemulsions. Mixtures of soy phosphatidylcholine with sodium oleate stabilized the dispersions of medium chain triglyceride in water. Rheological measurements, polarized microscopy, and small angle X-ray scattering demonstrated that there is a phase transition from LLC to desired nanoemulsions. These small and narrow droplet-sized nanocarriers exhibited some advantages and promising features, such as the enhanced BNZ aqueous solubility and slow drug release rate. In vitro cell biocompatibility of formulations was assessed in the Vero E6 and SiHa cell lines. Drug-loaded nanoemulsions inhibited the epimastigote growth of the T. cruzi parasite (IC50 0.208 ± 0.052 μg mL-1) and reduced its infective life form trypomastigote (IC50 0.392 ± 0.107 μg mL-1). The oil-in-water nanoemulsions were demonstrated as promising biocompatible liquid drug delivery systems capable of improving the BNZ trypanocidal activity for the treatment of Chagas disease.
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Ren JN, Dong M, Hou YY, Fan G, Pan SY. Effect of olive oil on the preparation of nanoemulsions and its effect on aroma release. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2018; 55:4223-4231. [PMID: 30228421 PMCID: PMC6133862 DOI: 10.1007/s13197-018-3358-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/26/2018] [Accepted: 07/30/2018] [Indexed: 11/25/2022]
Abstract
The present study focused on the effect of olive oil on Ostwald ripening of flavor nanoemulsions. The release of the aroma compounds from the nanoemulsion system was also investigated. The results showed that the droplets size of the nanoemulsions decreased sharply first and then kept stable with the increase of Tween 80. The optimum surfactant/cosurfactant (Km) ratio was determined at 7:1. The average particle size of nanoemulsion was 39.22 nm. The polydispersity index (PDI) was 0.242 nm, and the particle size distribution was in the range of 20-150 nm at the optimum Km. The stability of the nanoemulsions was improved after the addition of olive oil, and it increased noticeably with the increase of olive oil. The addition of olive oil could help to stabilize the emulsions and hamper Ostwald ripening. All the 11 aroma compounds in the nanoemulsions were detected after 24-h storage. While only 5 aroma compounds were found after 48-h storage, and α-pinene and β-myrcene were the only two aroma compounds detected after 72-h storage with low contents of 1.41 and 0.5 mg/L. The addition of olive oil inhibited the release of the aroma compounds from the nanoemulsion system. The released ethyl acetate was reduced by 48% after the addition of 10% olive oil. Significant decrease on the release of α-pinene and nonanal was observed after the addition of 3% olive oil. And the decrease was also observed on the release of β-myrcene, D-limonene, α-terpineol, decanal and eugenol when the olive oil content was ≥ 5%. However, benzyl alcohol, β-ionone and 1-octanol showed no significant changes with the increase of olive oil. This indicated that the addition of olive oil could provide greater retention of the aroma compounds in the nanoemulsions.
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Affiliation(s)
- Jing-Nan Ren
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China
| | - Man Dong
- Hubei Provincial Institute for Food Supervision and Test, Wuhan, 430070 China
| | - Yuan-Yuan Hou
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China
| | - Gang Fan
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China
| | - Si-Yi Pan
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China
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Ferraz LRDM, Alves AÉG, Nascimento DDSDS, Amariz IAE, Ferreira AS, Costa SPM, Rolim LA, Lima ÁAND, Rolim Neto PJ. Technological innovation strategies for the specific treatment of Chagas disease based on Benznidazole. Acta Trop 2018; 185:127-132. [PMID: 29452113 DOI: 10.1016/j.actatropica.2018.02.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 01/25/2018] [Accepted: 02/11/2018] [Indexed: 10/18/2022]
Abstract
Caused by Trypanosoma cruzi, Chagas disease is responsible for public health problems greater in magnitude than those attributed to malaria, schistosomiasis, or leishmaniasis. A factor in the socioeconomic development of poor countries, Chagas disease can cause death due to a high parasitic burden during its acute phase due and irreversible damage in organs such as the heart, esophagus, and colon during its chronic phase, even when the number of parasites is minimal. For treating Chagas disease, benznidazole (BNZ) remains the drug of choice and, in Latin America, the only drug on the market for treating the disease. However, BNZ has exhibited insufficient activity in the chronic phase of Chagas disease, required administration in large doses, prolonged treatment, and shown a high incidence of adverse reactions (vomiting, rash, peripheral neuropathy, and spinal cord depression), toxicity, and low solubility in water. As an antidote, pharmaceutical technologies have been introduced that can improve BNZ's solubility and dissolution, as well as reduce side effects in light of its bioavailability, all of which can enhance therapy for Chagas disease. In response to that trend, by conducting a literature review, we sought to identify current pharmaceutical technologies used in tandem with BNZ to improve therapy for Chagas disease. Documented techniques include emulsion and microemulsion formation, solutions, parenteral formulas, micronization, and drug delivery systems supported by the development of nanoparticles and cyclodextrins, solid dispersions, and the use of metal-organic frameworks as innovative excipients. Such technologies increase the water solubility of BNZ by 4-25-fold on dissolution and an 85% release with efficacy in only a few minutes, as recorded during a viability experiment with nanoparticle suspensions. That experiment demonstrated the need for a lower concentration of BNZ to kill 50% of trypomastigote forms of T. cruzi, described in terms of the formation of BNZ-cyclodextrin complexes, and modulating and vectoring of the antichagasic by using metal-organic frameworks. Altogether, the promising results of research identified can enable strategies to improve solubility and efficacy of BNZ, as well as therapy for Chagas disease.
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García MC, Manzo RH, Jimenez-Kairuz A. Polysaccharides-based multiparticulated interpolyelectrolyte complexes for controlled benznidazole release. Int J Pharm 2018; 545:366-377. [DOI: 10.1016/j.ijpharm.2018.05.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/24/2018] [Accepted: 05/06/2018] [Indexed: 01/26/2023]
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12
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García MC, Martinelli M, Ponce NE, Sanmarco LM, Aoki MP, Manzo RH, Jimenez-Kairuz AF. Multi-kinetic release of benznidazole-loaded multiparticulate drug delivery systems based on polymethacrylate interpolyelectrolyte complexes. Eur J Pharm Sci 2018; 120:107-122. [PMID: 29705213 DOI: 10.1016/j.ejps.2018.04.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/26/2018] [Accepted: 04/23/2018] [Indexed: 01/05/2023]
Abstract
Interpolyelectrolyte complexes (IPEC) formulated as multiparticulate drug delivery systems (MDDS) are interesting carriers to improve drug' performance. Benznidazole (BZ) is the first-line drug for Chagas treatment; however, it presents side effects and toxicity, conditioning its efficacy and safety. The goal of this work was to obtain novel MDDS composed by IPEC based on different polymethacrylate carriers loaded with BZ and to investigate in vitro drug delivery performance for oral administration. Physicochemical characterizations were studied and preclinical studies in a murine model of acute Chagas disease were also performed. The MDDS composed by BZ-loaded IPEC based on polymethacrylates were obtained by casting solvent followed by wet granulation methods with yields >83%. FT-IR demonstrated ionic interaction between the polyelectrolytes. Confocal microscopy, DSC and PXRD revealed a fraction uniformly distributed of free BZ on the multiparticles. The rheological evaluation of the MDDS showed adequate flow features for their formulation in hard gelatin-capsules. The type and composition of IPEC conditioned the modulation of BZ release and fluid uptake results. MDDS based on more hydrophylic Eudragit® showed very fast dissolution (Q15min > 85%), while an extended release (Q120min ≤ 40%) for the hydrophobic ones was observed. Capsules containing a combination of two MDDS with different release profile of BZ showed promising properties to improve Chagas disease pharmacotherapy in the preliminary in vivo assay performed, in which the BZ-loaded MDDS exhibited efficacy to reduce parasitemia, while decreasing the levels of liver injury markers in comparison to BZ conventional treatment. Multi-kinetic BZ delivery systems developed are interesting pharmaceutical alternatives to improve the treatment of Chagas disease.
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Affiliation(s)
- Mónica C García
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina; Unidad de Investigación y Desarrollo en Tecnología Farmacéutica - UNITEFA (CONICET-UNC), Córdoba, Argentina.
| | - Marisa Martinelli
- Instituto de Investigación y Desarrollo en Ingeniería de Procesos y Química Aplicada (IPQA), CONICET and Laboratorio de Materiales Poliméricos (LAMAP), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA Córdoba, Argentina.
| | - Nicolás E Ponce
- Instituto de Investigación Médica "M. y M. Ferreyra", INIMEC-CONICET, Universidad Nacional de Córdoba, Córdoba, Argentina.
| | - Liliana M Sanmarco
- Centro de Investigaciones en Bioquímica Clínica e Inmunología CIBICI (CONICET-UNC), Córdoba, Argentina; Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
| | - María P Aoki
- Centro de Investigaciones en Bioquímica Clínica e Inmunología CIBICI (CONICET-UNC), Córdoba, Argentina; Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
| | - Rubén H Manzo
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina; Unidad de Investigación y Desarrollo en Tecnología Farmacéutica - UNITEFA (CONICET-UNC), Córdoba, Argentina.
| | - Alvaro F Jimenez-Kairuz
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina; Unidad de Investigación y Desarrollo en Tecnología Farmacéutica - UNITEFA (CONICET-UNC), Córdoba, Argentina.
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de Araújo MM, Streck L, de Souza I, Caroni ALP, Fernandes-Pedrosa MF, Sarmento VH, da Silva-Júnior AA. Surfactant-oil interactions overcoming physicochemical instability and insoluble praziquantel loading in soybean oil dispersions. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.12.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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de Melo PN, Barbosa EG, Garnero C, de Caland LB, Fernandes-Pedrosa MF, Longhi MR, da Silva-Júnior AA. Interaction pathways of specific co-solvents with hydroxypropyl-β-cyclodextrin inclusion complexes with benznidazole in liquid and solid phase. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.08.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Colloidal properties of octadecylamine hydrochloride and the wettability of KCl crystal surface in different saturated salt solutions. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.08.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Phase Transitions of Isotropic to Anisotropic Biocompatible Lipid-Based Drug Delivery Systems Overcoming Insoluble Benznidazole Loading. Int J Mol Sci 2016; 17:ijms17070981. [PMID: 27376278 PMCID: PMC4964366 DOI: 10.3390/ijms17070981] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 06/13/2016] [Accepted: 06/14/2016] [Indexed: 02/08/2023] Open
Abstract
Previous studies reported low benznidazole (BNZ) loading in conventional emulsions due to the weak interaction of the drug with the most common oils used to produce foods or pharmaceuticals. In this study, we focused on how the type of surfactant, surfactant-to-oil ratio w/w (SOR) and oil-to-water ratio w/w (OWR) change the phase behavior of different lipid-based drug delivery systems (LBDDS) produced by emulsion phase inversion. The surfactant mixture composed of soy phosphatidylcholine and sodium oleate (1:7, w/w, hydrophilic lipophilic balance = 16) stabilized medium chain triglyceride in water. Ten formulations with the clear aspect or less turbid dispersions (five with the SOR ranging from 0.5 to 2.5 and five with the OWR from 0.06 to 0.4) were selected from the phase behavior diagram to assess structural features and drug-loading capacity. The rise in the SOR induced the formation of distinct lipid-based drug delivery systems (nanoemulsions and liquid crystal lamellar type) that were identified using rheological measurements and cross-polarized light microscopy images. Clear dispersions of small and narrow droplet-sized liquid-like nanoemulsions, Newtonian flow-type, were produced at SOR from 0.5 to 1.5 and OWR from 0.12 to 0.4, while clear liquid or gel-like liquid crystals were produced at SOR from 1.5 to 2.5. The BNZ loading was improved according to the composition and type of LBDDS produced, suggesting possible drug location among surfactant layers. The cell viability assays proved the biocompatibility for all of the prepared nanoemulsions at SOR less than 1.5 and liquid crystals at SOR less than 2.5, demonstrating their promising features for the oral or parenteral colloidal delivery systems containing benznidazole for Chagas disease treatment.
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Xie Y, Chen J, Zhang S, Fan K, Chen G, Zhuang Z, Zeng M, Chen D, Lu L, Yang L, Yang F. The research about microscopic structure of emulsion membrane in O/W emulsion by NMR and its influence to emulsion stability. Int J Pharm 2016; 500:110-9. [PMID: 26784978 DOI: 10.1016/j.ijpharm.2016.01.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 01/02/2016] [Accepted: 01/14/2016] [Indexed: 12/08/2022]
Abstract
PURPOSE This paper discussed the influence of microstructure of emulsion membrane on O/W emulsion stability. METHODS O/W emulsions were emulsified with equal dosage of egg yolk lecithin and increasing dosage of co-emulsifier (oleic acid or HS15). The average particle size and centrifugal stability constant of emulsion, as well as interfacial tension between oil and water phase were determined. The microstructure of emulsion membrane had been studied by (1)H/(13)C NMR, meanwhile the emulsion droplets were visually presented with TEM and IFM. RESULTS With increasing dosage of co-emulsifier, emulsions showed two stable states, under which the signal intensity of characteristic group (orient to lipophilic core) of egg yolk lecithin disappeared in NMR of emulsions, but that (orient to aqueous phase) of co-emulsifiers only had some reduction at the second stable state. At the two stable states, the emulsion membranes were neater in TEM and emulsion droplets were rounder in IFM. Furthermore, the average particle size of emulsions at the second stable state was bigger than that at the first stable state. CONCLUSIONS Egg yolk lecithin and co-emulsifier respectively arranged into monolayer and bilayer emulsion membrane at the two stable states. The microstructure of emulsion membrane was related to the stability of emulsion.
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Affiliation(s)
- Yiqiao Xie
- Department of Pharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China.
| | - Jisheng Chen
- Department of Pharmacy, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China.
| | - Shu Zhang
- Department of Pharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China.
| | - Kaiyan Fan
- Department of Pharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China.
| | - Gang Chen
- Department of Pharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China.
| | - Zerong Zhuang
- Department of Pharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China.
| | - Mingying Zeng
- Department of Pharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China.
| | - De Chen
- Department of Pharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China.
| | - Longgui Lu
- Department of Pharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China.
| | - Linlin Yang
- Guangdong Province Maternity and Child Care Hospital, Guangzhou, Guangdong 510006, China.
| | - Fan Yang
- Department of Pharmaceutics, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China.
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Development and characterization of promising o/w nanoemulsions containing sweet fennel essential oil and non-ionic sufactants. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2014.12.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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19
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Sonawane SJ, Kalhapure RS, Jadhav M, Rambharose S, Mocktar C, Govender T. Transforming linoleic acid into a nanoemulsion for enhanced activity against methicillin susceptible and resistant Staphylococcus aureus. RSC Adv 2015. [DOI: 10.1039/c5ra16248c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic of formation of linoleic acid nanoemulsion.
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Affiliation(s)
- Sandeep J. Sonawane
- Discipline of Pharmaceutical Sciences
- School of Health Sciences
- University of KwaZulu-Natal
- Durban 4000
- South Africa
| | - Rahul S. Kalhapure
- Discipline of Pharmaceutical Sciences
- School of Health Sciences
- University of KwaZulu-Natal
- Durban 4000
- South Africa
| | - Mahantesh Jadhav
- Discipline of Pharmaceutical Sciences
- School of Health Sciences
- University of KwaZulu-Natal
- Durban 4000
- South Africa
| | - Sanjeev Rambharose
- Discipline of Pharmaceutical Sciences
- School of Health Sciences
- University of KwaZulu-Natal
- Durban 4000
- South Africa
| | - Chunderika Mocktar
- Discipline of Pharmaceutical Sciences
- School of Health Sciences
- University of KwaZulu-Natal
- Durban 4000
- South Africa
| | - Thirumala Govender
- Discipline of Pharmaceutical Sciences
- School of Health Sciences
- University of KwaZulu-Natal
- Durban 4000
- South Africa
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Davanço MG, de Campos ML, Peccinini RG. Rapid and sensitive ultra-high-pressure liquid chromatography method for quantification of antichagasic benznidazole in plasma: application in a preclinical pharmacokinetic study. Biomed Chromatogr 2014; 29:1008-15. [DOI: 10.1002/bmc.3386] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 09/25/2014] [Accepted: 10/13/2014] [Indexed: 11/05/2022]
Affiliation(s)
- Marcelo Gomes Davanço
- Department of Natural Active Principles and Toxicology, School of Pharmaceutical Sciences; São Paulo State University; Araraquara São Paulo Brazil
| | - Michel Leandro de Campos
- Department of Natural Active Principles and Toxicology, School of Pharmaceutical Sciences; São Paulo State University; Araraquara São Paulo Brazil
| | - Rosângela Gonçalves Peccinini
- Department of Natural Active Principles and Toxicology, School of Pharmaceutical Sciences; São Paulo State University; Araraquara São Paulo Brazil
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