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Khalili Z, Motakef Kazemi N, Jafari Azar Z, Mosavi Z, Hasanzadeh M. Fabrication and characterization of a Bi 2O 3-modified chitosan@ZIF-8 nanocomposite for enhanced drug loading-releasing efficacy. Int J Biol Macromol 2024; 263:130295. [PMID: 38382787 DOI: 10.1016/j.ijbiomac.2024.130295] [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: 11/16/2023] [Revised: 02/16/2024] [Accepted: 02/17/2024] [Indexed: 02/23/2024]
Abstract
In this study, a simple novel hybrid mesoporous nanomaterial derived from a metal-organic framework (ZIF-8) and chitosan, which were coated on green bismuth oxide, has been successfully synthesized, characterized, and applied to investigate its dapsone loading-releasing capability in the aqueous media. This suggested nanocomposite showed promise for drug loading from water b using hydrogen bonds, pi-pi, and electrostatic interactions. Structural and morphological analyses were performed on the proposed green synthesized nanocomposite through scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, Brunauer-Emmett-Teller analysis, and thermogravimetric analysis. Various influencing parameters, including pH, nanocomposite dose, and contact time, were investigated to optimize the dapsone loading process. Utilizing the non-linear optimization methodology, the results show that dapsone-loading efficiency was >85 % for 50 mg.L-1 of dapsone drug. The optimum parameters for achieving maximal loading of dapsone drug were pH = 6.8, hybrid mesosphere dose = 2.6 mg.mL-1, and time = 53 min. Based on the release investigations, the dapsone-loaded nanocomposite was put into phosphate buffer saline, at pH = 7.4 and T = 37 °C, with a maximum efficiency of 93.9 after 24 h.
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Affiliation(s)
- Zahra Khalili
- Department of Medical Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Negar Motakef Kazemi
- Department of Medical Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Zahra Jafari Azar
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Zahra Mosavi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Pharmaceutical Sciences, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Rao MR, Deshpande S, Deshpande P. Dapsone-Loaded Mixed Micellar Gel for Treatment OF Acne Vulgaris. AAPS PharmSciTech 2023; 24:109. [PMID: 37100968 DOI: 10.1208/s12249-023-02564-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 04/04/2023] [Indexed: 04/28/2023] Open
Abstract
Mixed polymeric micelles are potential nanocarriers for topical drug delivery. Dapsone (DAP) is an antibacterial used as anti-acne agent, but challenged by low water solubility and poor skin permeability. In the present study, DAP-loaded mixed micellar gel was developed comprising Pluronics F-68 and F-127. Micelles were prepared by solvent evaporation method and particle size, ex vivo permeation, drug loading, and entrapment efficiency were determined. Central Composite Design was used to optimize formulation. Independent variables were concentration of Pluronics at three levels while micelle size and drug loading capacities were dependent variables. Droplet size ranged from 400 to 500 nm. Transmission electron microscopy revealed spherical morphology of micelles. Optimized micelles were incorporated into gel base using HPMC K100M, Sodium CMC, and Carbopol 980 as gelling agents. Gels were evaluated for pH, drug content, spreadability, rheology, syneresis, ex vivo permeation, and subacute dermal toxicity. Compared with solubility of free DAP (0.24+0.056 µg/ml), solubility in mixed micelles was 18.42±3.4 µg/ml in water at room temperature. Order of spreadability of gels was Na CMC < HPMC < Carbopol 980. Carbopol gels displayed thixotropy with index of 3.17. Syneresis for all gels from day 0 to day 30 was found to be in range of 4.2 to 15.6% w/w. Subacute dermal toxicity studies showed no signs of erythema and edema on rat skin until 21 days. These results suggest that mixed micelles can significantly increase solubility and permeability and sustain release of DAP and are suitable carriers for topical DAP delivery in anti-acne therapies.
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Affiliation(s)
- Monica Rp Rao
- Department of Pharmaceutics, AISSMS College of Pharmacy, Kennedy Road, Near R.T.O., Maharashtra, 411001, Pune, India.
| | - Sushant Deshpande
- Department of Pharmaceutical Quality Assurance, AISSMS College of Pharmacy, Kennedy Road, Near R.T.O., Pune, 411001, India
| | - Padmanabh Deshpande
- Department of Pharmaceutical Quality Assurance, AISSMS College of Pharmacy, Kennedy Road, Near R.T.O., Pune, 411001, India
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Paredes da Rocha N, de Souza A, Nishitani Yukuyama M, Lopes Barreto T, de O Macedo L, Löbenberg R, Lima Barros de Araújo G, Ishida K, Araci Bou-Chacra N. Highly water-soluble dapsone nanocrystals: Towards innovative preparations for an undermined drug. Int J Pharm 2022; 630:122428. [PMID: 36436741 DOI: 10.1016/j.ijpharm.2022.122428] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 11/18/2022] [Accepted: 11/19/2022] [Indexed: 11/26/2022]
Abstract
Dapsone (DAP)is a dual-function drug substance; however, its limited water solubility may impair its bioavailability. Drug nanocrystals are an alternative to overcome this limitation. Herein, a DAP nanosuspension was prepared using adesign space approach aiming to investigate the influence of raw material properties and process parameters on the critical quality attributes of the drugnanocrystals. Optimized nanocrystals with 206.3 ± 6.7 nm using povacoat™ as stabilizer were made. The nanoparticles were characterized by dynamic light scattering, laser diffraction, scanning electron microscopy, differential scanning calorimetry, X-ray powder diffraction, and saturation solubility. Compared to the raw material, the nanocrystals were 250-times smaller. Meanwhile, its crystalline state remained basically unchanged even after milling and drying. The nanosuspension successfully maintained its physical stability inlong-termandaccelerated stability studiesover, 4 and 3 months. Furthermore, toxicity studiesshowed low a toxicity at a20 mg/kg. As expected for nanocrystals, the size reduction improvedsaturation solubility3.78 times in water. An attempt to scale up from lab to pilot scale resulted nanocrystals of potential commercial quality. In conclusion, the present study describes the development of dapsone nanocrystals for treating infectious and inflammatory diseases. The nanocrystal formuation can be scaled up for commercial use.
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Affiliation(s)
| | - Aline de Souza
- Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | - Luiza de O Macedo
- Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Raimar Löbenberg
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada
| | | | - Kelly Ishida
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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da Rocha NP, Barbosa EJ, Barros de Araujo GL, Bou-Chacra NA. Innovative drug delivery systems for leprosy treatment. Indian J Dermatol Venereol Leprol 2022; 88:1-6. [PMID: 35434984 DOI: 10.25259/ijdvl_1119_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/01/2022] [Indexed: 11/04/2022]
Affiliation(s)
- Nataly Paredes da Rocha
- Faculty of Pharmaceutical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, São Paulo, SP, Brazil
| | - Eduardo José Barbosa
- Faculty of Pharmaceutical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, São Paulo, SP, Brazil
| | | | - Nádia Araci Bou-Chacra
- Faculty of Pharmaceutical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, São Paulo, SP, Brazil
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Bahraminegad S, Pardakhty A, Sharifi I, Ranjbar M. Therapeutic effects of the as-synthesized polylactic acid/chitosan nanofibers decorated with amphotricin B for in vitro treatment of Leishmaniasis. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Schneider-Rauber G, Argenta DF, Caon T. Emerging Technologies to Target Drug Delivery to the Skin - the Role of Crystals and Carrier-Based Systems in the Case Study of Dapsone. Pharm Res 2020; 37:240. [PMID: 33169237 DOI: 10.1007/s11095-020-02951-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 10/07/2020] [Indexed: 12/17/2022]
Abstract
Dapsone (DAP) is a long-established molecule that remains a promising therapeutic agent for various diseases mainly because it combines antimicrobial and anti-inflammatory activities. Its oral application, however, is limited by the dose-dependent hematological side effects that may rise from systemic exposure. As an alternative to overcome this limitation, the administration of DAP to the skin has witnessed prominent interest in the past 20 years, particularly when applied to the treatment of dermatological disorders. In this review, all technological strategies proposed to the topical delivery of DAP are presented. Most of the reported studies have been devoted to the clinical use and safety of a gel formulation containing both solubilized and microcrystalline drug, however, the technological characteristics of such preparation are still missing. In parallel, the incorporation of DAP into vesicular and particulate carriers (e.g. nano- and microemulsions, niosomes, invasomes, bilosomes, cubosomes, solid lipid nanoparticles, nanostructured lipid carriers, polymeric nanocapsules and polymer-lipid-polymer hybrid nanoparticles) appears to be an alternative to provide greater drug release control, enhanced drug solubilization and follicular targeting. Indeed, the main application of DAP topical formulations reported in the literature was the treatment of acne vulgaris, a disease located in the hair follicle. Other diseases affecting different regions of the skin (e.g. cutaneous lupus erythematosus and cutaneous leishmaniasis), however, may also benefit from a topical therapeutic regimen containing DAP. Therefore, the investigation of appendageal route in comparison to passive transmembrane diffusion as a function of targeted disease, as well as pharmacokinetic studies, are perspectives highlighted herein. Such studies may drive future efforts towards the rational development of safe and effective technologies to deliver DAP to the skin. Graphical abstract.
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Affiliation(s)
- Gabriela Schneider-Rauber
- Postgraduate Program in Pharmacy (PGFar), Federal University of Santa Catarina, Trindade, SC, 88040-900, Florianopolis, Brazil
| | - Debora Fretes Argenta
- Postgraduate Program in Pharmacy (PGFar), Federal University of Santa Catarina, Trindade, SC, 88040-900, Florianopolis, Brazil
| | - Thiago Caon
- Postgraduate Program in Pharmacy (PGFar), Federal University of Santa Catarina, Trindade, SC, 88040-900, Florianopolis, Brazil.
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