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Elhabak M, Salama AAA, Salama AH. Nose-to-brain delivery of galantamine loaded nanospray dried polyacrylic acid/taurodeoxycholate mixed matrix as a protective therapy in lipopolysaccharide-induced Alzheimer's in mice model. Int J Pharm 2023; 632:122588. [PMID: 36623740 DOI: 10.1016/j.ijpharm.2023.122588] [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: 08/07/2022] [Revised: 01/02/2023] [Accepted: 01/04/2023] [Indexed: 01/09/2023]
Abstract
One of the promising drug delivery approaches is performed by nanosizing the administered drug product using the nanospray drying technique. In this study, a combination of several formulation factors was integrated and exploited to augment the bioavailability of galantamine hydrobromide (GAL) via the intranasal route. Nanosized polymeric particles were fabricated using the mucoadhesive polymer, polyacrylic acid (PAA), and the permeability booster, sodium taurodeoxycholate (TDC). First, a preliminary study was conducted to adjust the nanospray drying conditions. Then, formulations were prepared on the basis of a mixed factorial experimental design and further analyzed using Design Expert® software. Different responses were investigated: particle size, polydispersity index, spray rate, drying efficiency, and percent yield. The optimized formulation was further assessed for physical morphology using the scanning electron microscope, flowability, in vitro drug release, and in vivo brain cell uptake using confocal laser scanning microscopy. The promising formulation (F6), composed of equal ratio of PAA and TDC and 20 mg GAL, exhibited a particle size of 185.55 ± 4.3 nm, polydispersity index of 0.413 ± 0.02, and yield-value of 69.58 ± 5.82 %. It also displayed good flowability, complete drug release within 2 h, and enhanced in vivo fluorescent dye uptake and penetration in brain cells. The efficacy of the optimized formulation was examined using lipopolysaccharide-induced Alzheimer's in mice. Results revealed the advantageous influence of the optimized formulation (F6) through downregulation of NF-κβ, IL-1β and GFAP as well as upregulating TGF-1β in adult mice.
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Affiliation(s)
- Mona Elhabak
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ahram Canadian University, 6(th) of October City, Cairo, Egypt.
| | - Abeer A A Salama
- Pharmacology Department, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Alaa H Salama
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ahram Canadian University, 6(th) of October City, Cairo, Egypt; Pharmaceutical Technology Department, National Research Centre, Dokki, Cairo 12622, Egypt
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Tangso KJ, Lindberg S, Hartley PG, Knott R, Spicer P, Boyd BJ. Formation of liquid-crystalline structures in the bile salt-chitosan system and triggered release from lamellar phase bile salt-chitosan capsules. ACS APPLIED MATERIALS & INTERFACES 2014; 6:12363-12371. [PMID: 25050454 DOI: 10.1021/am502192t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nanostructured capsules comprised of the anionic bile salt, sodium taurodeoxycholate (STDC), and the biocompatible cationic polymer, chitosan, were prepared to assess their potential as novel tailored release nanomaterials. For comparison, a previously studied system, sodium dodecyl sulfate (SDS), and polydiallyldimethylammonium chloride (polyDADMAC) was also investigated. Crossed-polarizing light microscopy (CPLM) and small-angle X-ray scattering (SAXS) identified the presence of lamellar and hexagonal phase at the surfactant-polymer interface of the respective systems. The hydrophobic and electrostatic interactions between the oppositely charged components were studied by varying temperature and salt concentration, respectively, and were found to influence the liquid-crystalline nanostructure formed. The hexagonal phase persisted at high temperatures, however the lamellar phase structure was lost above ca. 45 °C. Both mesophases were found to dissociate upon addition of 4% NaCl solution. The rate of release of the model hydrophilic drug, Rhodamine B (RhB), from the lamellar phase significantly increased in response to changes in the solution conditions studied, suggesting that modulating the drug release from these bile salt-chitosan capsules is readily achieved. In contrast, release from the hexagonal phase capsules had no appreciable response to the stimuli applied. These findings provide a platform for these oppositely charged surfactant and polymer systems to function as stimuli-responsive or sustained-release drug delivery systems.
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Affiliation(s)
- Kristian J Tangso
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus) , 381 Royal Parade, Parkville, Victoria 3052, Australia
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Abstract
Aqueous systems containing sodium taurodeoxycholate and, eventually, soybean lecithin were investigated. Depending on the relative amounts of two such species, molecular, micellar, vesicular, liquid crystalline, and solid phases were formed. In the presence of bovine serum albumin, micellar and vesicular systems form lipo-plexes. The latter self-organize into gels, depending on composition and thermal treatments. According to scanning electron microscopy, vesicle-based gels obtained from lipo-plexes form sponge-like entities, whereas micelle-based ones self-arrange in fibrous organizations. Gels are characterized by a significant viscoelasticity in a wide temperature and frequency range. Rheological data were interpreted by assuming strict relations between the system response and the self-organization of the lipo-plexes into gels. It was inferred that differences in the gel properties depend on the different self-assembly modes of the aggregates formed by the mentioned lipo-plexes. Use of the above systems in biomedical applications, mostly in the preparation of matrices requiring the use of smart and biocompatible gels, is suggested.
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Affiliation(s)
- Carlotta Pucci
- Department of Chemistry, Cannizzaro Building, La Sapienza University , P.le A. Moro 5, I-00185 Rome, Italy
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Kane AA, Ford AC, Nissen A, Krafcik KL, Léonard F. Etching of surfactant from solution-processed, type-separated carbon nanotubes and impact on device behavior. ACS NANO 2014; 8:2477-2485. [PMID: 24512110 DOI: 10.1021/nn406065t] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Semiconducting single-walled carbon nanotubes (SWCNTs) have great potential for use in electronic and optoelectronic devices. However, methods for synthesizing SWCNTs produce a mixture of metallic and semiconducting materials, which require additional processing to separate by electronic type. Purification and enrichment of the semiconducting fraction is readily achieved by using the centrifugation of aqueous suspensions of SWCNTs with the help of surfactants, but this leaves residual surfactant on the SWCNT surface that can impact their electronic and optical properties. Here, we present a detailed study of the sodium taurodeoxycholate (STDC) surfactant removal process during vacuum annealing, showing that it occurs through fragmentation of the surfactant, and that complete removal requires exceedingly high temperatures, which indicates strong binding to the SWCNTs. We then present an approach based on air oxidation and mild annealing to completely remove the surfactant while maintaining the SWCNT properties. Using this approach, we compare single SWCNT electronic devices with and without STDC and show that, despite the very strong surfactant binding, it does not affect device performance substantially.
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Affiliation(s)
- Alexander A Kane
- Sandia National Laboratories , Livermore, California 94551, United States
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Perez-Tejeda P, Jimenez-Ruiz A, Grueso EM, Prado-Gotor R, Carrasco C, Pastor A, Alvarez N, Garcia-Lora M, Garcia-Pageo M. Binding Study of the [Ru(NH3)5pz]2+Complex to Bile Anion Aggregates through Kinetic Measurements. INT J CHEM KINET 2013. [DOI: 10.1002/kin.20813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- P. Perez-Tejeda
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - A. Jimenez-Ruiz
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - E. M. Grueso
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - R. Prado-Gotor
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - C. Carrasco
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - A. Pastor
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - N. Alvarez
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - M. Garcia-Lora
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - M. Garcia-Pageo
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
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Youssry M, Coppola L. Cylindrical and Branched Micelles at Low Temperature: A Rheological Study. J DISPER SCI TECHNOL 2011. [DOI: 10.1080/01932691.2010.513321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Solution microstructures of the micellar phase of Pluronic L64/SDS/water system. J Colloid Interface Sci 2010; 342:348-53. [DOI: 10.1016/j.jcis.2009.10.069] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2009] [Revised: 10/27/2009] [Accepted: 10/27/2009] [Indexed: 11/22/2022]
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Coppola L, Youssry M, Nicotera I, Gentile L. Rheological investigation of thermal transitions in vesicular dispersion. J Colloid Interface Sci 2009; 338:550-7. [DOI: 10.1016/j.jcis.2009.06.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2009] [Revised: 06/19/2009] [Accepted: 06/20/2009] [Indexed: 10/20/2022]
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de Petris G, Festa MR, Galantini L, Giglio E, Leggio C, Pavel NV, Troiani A. Sodium Glycodeoxycholate and Glycocholate Mixed Aggregates in Gas and Solution Phases. J Phys Chem B 2009; 113:7162-9. [DOI: 10.1021/jp9010586] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giulia de Petris
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Maria Rosa Festa
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Luciano Galantini
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Edoardo Giglio
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Claudia Leggio
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Nicolae Viorel Pavel
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Anna Troiani
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
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