101
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Nguyen QD, Dang TT, Nguyen TVL, Nguyen TTD, Nguyen NN. Microencapsulation of roselle ( Hibiscus sabdariffa L.) anthocyanins: Effects of different carriers on selected physicochemical properties and antioxidant activities of spray-dried and freeze-dried powder. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2022. [DOI: 10.1080/10942912.2022.2044846] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Quoc-Duy Nguyen
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Thanh-Thuy Dang
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Thi-Van-Linh Nguyen
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Thi-Thuy-Dung Nguyen
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Nhu-Ngoc Nguyen
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
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102
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Carra JB, Matos RLND, Novelli AP, Couto ROD, Yamashita F, Ribeiro MADS, Meurer EC, Verri WA, Casagrande R, Georgetti SR, Arakawa NS, Baracat MM. Spray-drying of casein/pectin bioconjugate microcapsules containing grape (Vitis labrusca) by-product extract. Food Chem 2022; 368:130817. [PMID: 34411863 DOI: 10.1016/j.foodchem.2021.130817] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 07/25/2021] [Accepted: 08/06/2021] [Indexed: 01/25/2023]
Abstract
Novel microcapsules containing grape peel by-product extract were obtained. In this pursuit, complex coacervation of casein/pectin bioconjugate and spray-drying were combined. We have investigated the role of the dispersion feed rate (FR), drying air inlet temperature (IT) and drying air flow rate (AR) in the drying yield, microencapsulation efficiency, total polyphenols and anthocyanins contents, antioxidant activity, and morphology of the products. Also, the first-order degradation kinetics of the phytochemicals for both the extract and dried microcapsules was assessed and compared. The loss on the phytochemicals during spray-drying was attenuated in up to 88%, and the IT was the main factor affecting the particle properties. The polyphenols on the extract interacted with the polymers, influencing the assemble of the bioconjugate and the particle's features. Such microencapsulation strategy enhanced the thermal stability of the phytochemicals and rendered biocompatible and biodegradable products of which the nutraceutical and cosmeceutical application may have potential.
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Affiliation(s)
| | | | - Ana Paula Novelli
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Renê Oliveira do Couto
- Universidade Federal de São João del-Rei, Campus Centro-Oeste (Dona Lindu), Divinópolis, MG, Brazil
| | - Fabio Yamashita
- Departamento de Ciência e Tecnologia de Alimentos, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | | | - Eduardo César Meurer
- Universidade Federal do Paraná, Campus Jandaia do Sul, Rua Doutor João Maximiano, 426, Vila Operária, 86900-000 Jandaia do Sul, PR, Brazil
| | | | - Rubia Casagrande
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Sandra Regina Georgetti
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Nilton Syogo Arakawa
- Departamento de Química, Universidade Estadual de Londrina, Londrina, PR, Brazil; Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Marcela Maria Baracat
- Departamento de Química, Universidade Estadual de Londrina, Londrina, PR, Brazil; Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina, Londrina, PR, Brazil.
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103
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Di Giorgio L, Salgado PR, Mauri AN. Fish oil encapsulated in soy protein particles by lyophilization. Effect of drying process. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:206-213. [PMID: 34061354 DOI: 10.1002/jsfa.11347] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 04/09/2021] [Accepted: 06/01/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Fish oil is an important source of healthy ω-3 fatty acids to be used in functional foods. However, its autoxidation susceptibility, aroma and solubility make it difficult to use. Its encapsulation could reduce these disadvantages. This manuscript focuses on the drying stage of the encapsulation process. Its objective was to study the encapsulation of fish oil with soy proteins by emulsification and lyophilization and compare microparticles characteristics with those processed identically but spray dried. RESULTS Microparticles with different protein/oil ratios were prepared by emulsification and lyophilization. Soy proteins encapsulated fish oil in matrix-type microcapsules masking its typical odor and oily appearance. Microparticles dried by lyophilization showed a better solid recovery but lower encapsulation efficiency than those spray dried. Increasing protein/oil mass ratio of initial formulations seemed to favor initial lipid oxidation, but these differences were not appreciated when analyzing the oxidative stability over time (measured by Rancimat test). Porous structure and large surface area of lyophilized samples would favor oxygen easy penetration and exposition to free radicals, increasing lipid oxidation over time, while spray dried microparticles showed a good oxidative stability over time, like that of free oil. CONCLUSION Drying processes were determinants in the morphology of microcapsules, the efficiency of encapsulation and protection exerted on the oil. Although emulsifying and drying processes caused certain initial oil oxidation, soy proteins managed to mask fish oil flavors and spray dried systems showed a good perspective of oxidative stability of fish oil over time, better than that of lyophilized microparticles. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Luciana Di Giorgio
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, CONICET CCT La Plata - UNLP), 47 y 116 sn, La Plata, Buenos Aires, 1900, Argentina
| | - Pablo Rodrigo Salgado
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, CONICET CCT La Plata - UNLP), 47 y 116 sn, La Plata, Buenos Aires, 1900, Argentina
| | - Adriana Noemi Mauri
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, CONICET CCT La Plata - UNLP), 47 y 116 sn, La Plata, Buenos Aires, 1900, Argentina
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104
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Khanal D, Ke WR, Chan HK. Raman spectroscopic evaluation of crystallinity, chemical composition and stability of pharmaceutical powder aerosols. Int J Pharm 2022; 611:121341. [PMID: 34864122 DOI: 10.1016/j.ijpharm.2021.121341] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 11/25/2021] [Accepted: 11/28/2021] [Indexed: 11/26/2022]
Abstract
Raman spectroscopy was used to evaluate the effects of temperature and humidity on the physicochemical stability of inhalable spray-dried (SD) powders containing budesonide (BUD) and crystalline or amorphous lactose. Powders prepared by spray drying of BUD-lactose solution or suspension containing lactose crystals in BUD solution were stored for 0, 1 and 7 days at 25 °C/60 RH or 40 °C/75 RH. Bulk powders along with the large and small particle size fractions collected on stages 2 and 5, respectively, of the Next Generation Impactor (NGI) were chemically characterised. SD powder from solution contained BUD and lactose in amorphous form and both components were homogeneously distributed in bulk and in the particles collected from the two NGI stages. In contrast, SD powder from suspension showed heterogeneous distribution of lactose and drug in the particles containing crystalline lactose. After 1 day of storage at either condition, recrystallisation and changes in the chemical composition of the particles for the SD powder from solution occurred. The number of drug-only particles increased by 70 on stage 5, whereas most particles on stage 2 still contained both drug and lactose. These changes were not observed in the SD powder from suspension after storage, confirming superior stability of the SD powder obtained from suspension.
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Affiliation(s)
- Dipesh Khanal
- Advanced Drug Delivery Group, Sydney Pharmacy School, Faculty of Medicine and Health, Pharmacy and Bank Building A15, The University of Sydney, NSW 2006, Australia
| | - Wei-Ren Ke
- Advanced Drug Delivery Group, Sydney Pharmacy School, Faculty of Medicine and Health, Pharmacy and Bank Building A15, The University of Sydney, NSW 2006, Australia; School of Pharmacy, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Hak-Kim Chan
- Advanced Drug Delivery Group, Sydney Pharmacy School, Faculty of Medicine and Health, Pharmacy and Bank Building A15, The University of Sydney, NSW 2006, Australia.
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105
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Giarola LR, Coco JC, Sousa IMDO, Cefali LC, Ataide JA, Tavares GD, Rodrigues RAF, Foglio MA, Mazzola PG. Pterodon pubescens Benth (sucupira) microencapsulation influence on formulation stability outcome compared to non-encapsulated extract. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.102875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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106
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Singlard M, Paillassa A, Ferres L, Pagnoux C, Aimable A. Freeze granulation and spray drying of mixed granules of Al2O3. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.09.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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107
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Grafting MSI-78A onto chitosan microspheres enhances its antimicrobial activity. Acta Biomater 2022; 137:186-198. [PMID: 34634508 DOI: 10.1016/j.actbio.2021.09.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 09/16/2021] [Accepted: 09/21/2021] [Indexed: 12/24/2022]
Abstract
MSI-78A (Pexiganan A) is one of the few antimicrobial peptides (AMPs) able to kill Helicobacter pylori, a pathogenic bacterium that colonizes the gastric mucosa of half of the world's population. Antibiotics fail in 20-40% of H. pylori-infected patients, reinforcing the need for alternative treatments. Herein, a bioengineered approach was developed. MSI-78A with a C-terminal cysteine was grafted onto chitosan microspheres (AMP-ChMic) by thiol-maleimide (Michael-addition) chemistry using a long heterobifunctional spacer (NHS-PEG113-MAL). Microspheres with ∼4 µm diameter (near H. pylori length) and stable at low pH were produced by spray drying using a chitosan solution with an incomplete genipin crosslinking. A 3 × 10-5 µg AMP/microsphere grafting was estimated/confirmed by UV/Vis and FTIR spectroscopies. AMP-ChMic were bactericidal against H. pylori J99 (highly pathogenic human strain) at lower concentrations than the free peptide (∼277 µg grafted MSI-78A-SH/mL vs 512 µg free MSI-78A-SH/mL), even after pre-incubation in simulated gastric conditions with pepsin. AMP-ChMic killed H. pylori by membrane destabilization and cytoplasm release in a ratio of ∼10 bacteria/microsphere. This can be attributed to H. pylori attraction to chitosan, facilitating the interaction of grafted AMP with bacterium membrane. Overall, it was demonstrated that the peptide-microsphere conjugation chemistry did not compromise the MSI-78A antimicrobial activity, instead it boosted its bactericidal performance against H. pylori. STATEMENT OF SIGNIFICANCE: Half of the world's population is infected with Helicobacter pylori, a gastric bacterium that is responsible for 90% of non-cardia gastric cancers. Therefore, H. pylori eradication is now advocated in all infected individuals. However, available antibiotic therapies fail in up to 40% patients. Antimicrobial peptides (AMPs) are appealing alternatives to antibiotics, but their high susceptibility in vivo limits their clinical translation. AMP immobilization onto biomaterials surface will overcome this problem. Herein, we demonstrate that immobilization of MSI-78A (one of the few AMPs with activity against H. pylori) onto chitosan microspheres (AMP-ChMic) enhances its anti-H. pylori activity even at acidic pH (gastric settings). These results highlight the strong potential of AMP-ChMic as an antibiotic alternative for H. pylori eradication.
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108
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Nespi M, Kuhn R, Yen CW, Lubach JW, Leung D. Optimization of Spray-Drying Parameters for Formulation Development at Preclinical Scale. AAPS PharmSciTech 2021; 23:28. [PMID: 34931259 DOI: 10.1208/s12249-021-02160-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/06/2021] [Indexed: 12/14/2022] Open
Abstract
Spray-drying dispersion (SDD) is a well-established manufacturing technique used to prepare amorphous solid dispersions (ASDs), allowing for poorly soluble drugs to have improved bioavailability. However, the process of spray-drying with multiple factors and numerous variables can lead to a lengthy development timeline with intense resource requirements, which becomes the main obstacle limiting spray-drying development at the preclinical stage. The purpose of this work was to identify optimized preset parameters for spray-drying to support the early development of ASDs suitable for most circumstances rather than individual optimization. First, a mini-DoE (Design of Experiment) study was designed to evaluate the critical interplay of two key variables for spray-drying using a BUCHI B-290 mini spray dryer: solid load and atomizing spray gas flow. The critical quality attributes (CQAs) of the ASDs, including yield, particle size, morphology, and in vitro release profile, were taken into account to identify the impact of the key variables. The mini-DoE results indicated that a 5% solid load (w/v %) and 35 mm height atomizing spray gas flow were the most optimized parameters. These predefined values were further verified using different formulation compositions, including various polymers (Eudragit L100-55, HPMCAS-MF, PVAP, and PVP-VA64) and drugs (G-F, GEN-A, Indomethacin, and Griseofulvin), a range of drug loading (10 to 40%), and scale (200 mg to 200 g). Using these predefined parameters, all ASD formulations resulted in good yields as well as consistent particle size distribution. This was despite the differences in the formulations, making this a valuable and rapid approach ideal for early development. This strategy of leveraging the preset spray-drying parameters was able to successfully translate into a reproducible and efficient spray-drying platform while also saving material and reducing developmental timelines in early-stage formulation development.
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109
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Cannabidiol-Loaded Mixed Polymeric Micelles of Chitosan/Poly(Vinyl Alcohol) and Poly(Methyl Methacrylate) for Trans-Corneal Delivery. Pharmaceutics 2021; 13:pharmaceutics13122142. [PMID: 34959427 PMCID: PMC8703866 DOI: 10.3390/pharmaceutics13122142] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 12/13/2022] Open
Abstract
Ocular drug delivery is challenging due to the very short drug residence time and low permeability. In this work, we produce and characterize mucoadhesive mixed polymeric micelles (PMs) made of chitosan (CS) and poly(vinyl alcohol) backbones graft-hydrophobized with short poly(methyl methacrylate) blocks and use them to encapsulate cannabidiol (CBD), an anti-inflammatory cannabinoid. CBD-loaded mixed PMs are physically stabilized by ionotropic crosslinking of the CS domains with sodium tripolyphoshate and spray-drying. These mixed PMs display CBD loading capacity of 20% w/w and sizes of 100-200 nm, and spherical morphology (cryogenic-transmission electron microscopy). The good compatibility of the unloaded and CBD-loaded PMs is assessed in a human corneal epithelial cell line. Then, we confirm the permeability of CBD-free PMs and nanoencapsulated CBD in human corneal epithelial cell monolayers under liquid-liquid and air-liquid conditions. Overall, our results highlight the potential of these polymeric nanocarriers for ocular drug delivery.
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110
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Microspheres Based on a Protein Matrix and Dipyridamole with Possible Inhalation Administration. Pharm Chem J 2021. [DOI: 10.1007/s11094-021-02519-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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111
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Effect of Hypromellose Acetate Succinate Substituents on Miscibility Behavior of Spray-dried Amorphous Solid Dispersions: Flory–Huggins Parameter Prediction and Validation. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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112
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Corzo C, Fuchsbichler A, Savencu I, Afonso Urich J, Zimmer A, Lochmann D, Reyer S, Salar-Behzadi S. Lipid-microparticles for pulmonary delivery of active pharmaceutical ingredients: Impact of lipid crystallization on spray-drying processability. Int J Pharm 2021; 610:121259. [PMID: 34740761 DOI: 10.1016/j.ijpharm.2021.121259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/24/2021] [Accepted: 10/29/2021] [Indexed: 12/01/2022]
Abstract
Spray-drying is an extensively used technology for engineering inhalable particles. Important technical hurdles are however experienced when lipid-based excipients (LBEs) are spray-dried. Stickiness, extensive wall deposition, or simply inability to yield a solid product have been associated to the low melting points of LBEs. In this work, solutions containing polyglycerol esters of behenic acid (PGFA-behenates), or other high melting point LBEs, were spray-dried to produce ibuprofen (IBU)-loaded inhalable lipid-microparticles. Prior to spray-drying, rational boundaries for the outlet temperature of the process were defined using LBE-IBU phase diagrams. Despite spray-drying the solutions at outlet temperatures below the boundaries, process performance and yield among LBEs were entirely different. Lipid crystallization into polymorphs or multi-phases negatively impacted the yield (10-47%), associated to liquid fractions unable to recrystallize at the surrounding gas temperature in the spray-dryer. The highest yields (76-82%), ascribed to PGFA-behenates, resulted from monophasic crystallization and absence of polymorphism. Lipid-microparticles, composed of a PGFA-behenate, were characterized by a volume mean diameter of 6.586 µm, tap density of 0.389 g/cm3 and corrugated surface. Application as carrier-free dry powder for inhalation resulted in high emitted fraction (90.9%), median mass aerodynamic diameter of 3.568 µm, fine particle fraction of 45.6% and modified release in simulated lung fluid.
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Affiliation(s)
- Carolina Corzo
- Research Center Pharmaceutical Engineering GmbH, Graz, Austria; Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology, University of Graz, Graz, Austria
| | - Agnes Fuchsbichler
- Research Center Pharmaceutical Engineering GmbH, Graz, Austria; Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology, University of Graz, Graz, Austria
| | - Ioana Savencu
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | | | - Andreas Zimmer
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology, University of Graz, Graz, Austria
| | | | | | - Sharareh Salar-Behzadi
- Research Center Pharmaceutical Engineering GmbH, Graz, Austria; Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology, University of Graz, Graz, Austria.
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113
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Formulation and In Vivo Evaluation of a Solid Self-Emulsifying Drug Delivery System Using Oily Liquid Tocotrienols as Model Active Substance. Pharmaceutics 2021; 13:pharmaceutics13111777. [PMID: 34834191 PMCID: PMC8621674 DOI: 10.3390/pharmaceutics13111777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 11/17/2022] Open
Abstract
Self-emulsifying drug delivery systems (SEDDS) can improve the oral bioavailability of poorly water-soluble drugs. Solid self-emulsifying drug delivery systems (s-SEDDS) offer several advantages including improved drug stability, ease of administration, and production. Most compounds employed in developing s-SEDDS are solid in nature, with a high amount of surfactants added. The aim of this study was to develop an s-SEDDS using a tocotrienol-rich fraction (TRF) as the model liquid active substance via a simple adsorption method. The solid formulation was developed using magnesium aluminosilicate as the carrier with 70% TRF and 30% surfactants (poloxamer and Labrasol®). The formulation showed good self-emulsification efficiency with stable emulsion formed, excellent powder flowability, and small emulsion droplet size of 210–277 nm. The s-SEDDS with combined surfactants (poloxamer and Labrasol®) showed a faster absorption rate compared to preparations with only a single surfactant and enhanced oral bioavailability (3.4–3.8 times higher) compared to the non-self-emulsifying oily preparation when administered at a fasted state in rats. In conclusion, an s-SEDDS containing a high amount of TRF was successfully developed. It may serve as a useful alternative to a liquid product with enhanced oral bioavailability and the added advantage of being a solid dosage form.
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114
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Silva-Abreu M, Miralles E, Kamma-Lorger CS, Espina M, García ML, Calpena AC. Stabilization by Nano Spray Dryer of Pioglitazone Polymeric Nanosystems: Development, In Vivo, Ex Vivo and Synchrotron Analysis. Pharmaceutics 2021; 13:pharmaceutics13111751. [PMID: 34834165 PMCID: PMC8617923 DOI: 10.3390/pharmaceutics13111751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/10/2021] [Accepted: 10/13/2021] [Indexed: 12/13/2022] Open
Abstract
Pioglitazone-loaded PLGA-PEG nanoparticles (NPs) were stabilized by the spray drying technique as an alternative to the treatment of ocular inflammatory disorders. Pioglitazone-NPs were developed and characterized physiochemically. Interaction studies, biopharmaceutical behavior, ex vivo corneal and scleral permeation, and in vivo bioavailability evaluations were conducted. Fibrillar diameter and interfibrillar corneal spacing of collagen was analyzed by synchrotron X-ray scattering techniques and stability studies at 4 °C and was carried out before and after the spray drying process. NPs showed physicochemical characteristics suitable for ocular administration. The release was sustained up to 46 h after drying; ex vivo corneal and scleral permeation profiles of pioglitazone-NPs before and after drying demonstrated higher retention and permeation through cornea than sclera. These results were correlated with an in vivo bioavailability study. Small-angle X-ray scattering (SAXS) analysis did not show a significant difference in the organization of the corneal collagen after the treatment with pioglitazone-NPs before and after the drying process, regarding the negative control. The stabilization process by Nano Spray Dryer B-90 was shown to be useful in preserving the activity of pioglitazone inside the NPs, maintaining their physicochemical characteristics, in vivo bioavailability, and non-damage to corneal collagen function after SAXS analysis was observed.
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Affiliation(s)
- Marcelle Silva-Abreu
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (M.E.); (M.L.G.); (A.C.C.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
- Correspondence: ; Tel.: +34-93-402-4578
| | - Esther Miralles
- CCiTUB (Scientific and Technological Centers), University of Barcelona, 08028 Barcelona, Spain;
| | | | - Marta Espina
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (M.E.); (M.L.G.); (A.C.C.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - María Luisa García
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (M.E.); (M.L.G.); (A.C.C.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Ana Cristina Calpena
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (M.E.); (M.L.G.); (A.C.C.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
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115
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Rimdusit N, Jubsilp C, Mora P, Hemvichian K, Thuy TT, Karagiannidis P, Rimdusit S. Radiation Graft-Copolymerization of Ultrafine Fully Vulcanized Powdered Natural Rubber: Effects of Styrene and Acrylonitrile Contents on Thermal Stability. Polymers (Basel) 2021; 13:polym13193447. [PMID: 34641262 PMCID: PMC8512830 DOI: 10.3390/polym13193447] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/23/2021] [Accepted: 10/06/2021] [Indexed: 11/18/2022] Open
Abstract
Graft copolymers, deproteinized natural rubber-graft-polystyrene (DPNR-g-PS) and deproteinized natural rubber-graft-polyacrylonitrile (DPNR-g-PAN), were prepared by the grafting of styrene (St) or acrylonitrile (AN) monomers onto DPNR latex via emulsion copolymerization. Then, ultrafine fully vulcanized powdered natural rubbers (UFPNRs) were produced by electron beam irradiation of the graft copolymers in the presence of di-trimethylolpropane tetra-acrylate (DTMPTA) as a crosslinking agent and, subsequently, a fast spray drying process. The effects of St or AN monomer contents and the radiation doses on the chemical structure, thermal stability, and physical properties of the graft copolymers and UFPNRs were investigated. The results showed that solvent resistance and grafting efficiency of DPNR-g-PS and DPNR-g-PAN were enhanced with increasing monomer content. SEM morphology of the UFPNRs showed separated and much less agglomerated particles with an average size about 6 μm. Therefore, it is possible that the developed UFPNRs grafted copolymers with good solvent resistance and rather high thermal stability can be used easily as toughening modifiers for polymers and their composites.
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Affiliation(s)
- Niratchaporn Rimdusit
- Research Unit in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (N.R.); (P.M.)
| | - Chanchira Jubsilp
- Department of Chemical Engineering, Faculty of Engineering, Srinakharinwirot University, Nakhonnayok 26120, Thailand;
| | - Phattarin Mora
- Research Unit in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (N.R.); (P.M.)
| | | | - Tran Thi Thuy
- Department of Analytical Chemistry, School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi 100000, Vietnam;
| | | | - Sarawut Rimdusit
- Research Unit in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (N.R.); (P.M.)
- Correspondence: ; Tel.: +66-2218-6862
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116
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Functional Characteristics and Physical Properties of Spray Dried Starch Inclusion Complexes with Drugs. STARCH-STARKE 2021. [DOI: 10.1002/star.202100176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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117
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Pramanik S, Mohanto S, Manne R, Rajendran RR, Deepak A, Edapully SJ, Patil T, Katari O. Nanoparticle-Based Drug Delivery System: The Magic Bullet for the Treatment of Chronic Pulmonary Diseases. Mol Pharm 2021; 18:3671-3718. [PMID: 34491754 DOI: 10.1021/acs.molpharmaceut.1c00491] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chronic pulmonary diseases encompass different persistent and lethal diseases, including chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), cystic fibrosis (CF), asthma, and lung cancers that affect millions of people globally. Traditional pharmacotherapeutic treatment approaches (i.e., bronchodilators, corticosteroids, chemotherapeutics, peptide-based agents, etc.) are not satisfactory to cure or impede diseases. With the advent of nanotechnology, drug delivery to an intended site is still difficult, but the nanoparticle's physicochemical properties can accomplish targeted therapeutic delivery. Based on their surface, size, density, and physical-chemical properties, nanoparticles have demonstrated enhanced pharmacokinetics of actives, achieving the spotlight in the drug delivery research field. In this review, the authors have highlighted different nanoparticle-based therapeutic delivery approaches to treat chronic pulmonary diseases along with the preparation techniques. The authors have remarked the nanosuspension delivery via nebulization and dry powder carrier is further effective in the lung delivery system since the particles released from these systems are innumerable to composite nanoparticles. The authors have also outlined the inhaled particle's toxicity, patented nanoparticle-based pulmonary formulations, and commercial pulmonary drug delivery devices (PDD) in other sections. Recently advanced formulations employing nanoparticles as therapeutic carriers for the efficient treatment of chronic pulmonary diseases are also canvassed.
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Affiliation(s)
- Sheersha Pramanik
- Department of Pharmacy, Institute of Pharmacy Jalpaiguri, Netaji Subhas Chandra Bose Road, Hospital Para, Jalpaiguri, West Bengal 735101, India.,Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India
| | - Sourav Mohanto
- Department of Pharmaceutics, Himalayan Pharmacy Institute, Majhitar, East Sikkim 737176, India.,Department of Pharmaceutics, Yenepoya Pharmacy College and Research Centre, Yenepoya, Mangalore, Karnataka 575018, India
| | - Ravi Manne
- Quality Control and Assurance Department, Chemtex Environmental Lab, 3082 25th Street, Port Arthur, Texas 77642, United States
| | - Rahul R Rajendran
- Department of Mechanical Engineering and Mechanics, Lehigh University, 19 Memorial Drive West, Bethlehem, Pennsylvania 18015, United States
| | - A Deepak
- Saveetha Institute of Medical and Technical Sciences, Saveetha School of Engineering, Chennai, Tamil Nadu 600128, India
| | - Sijo Joy Edapully
- School of Biotechnology, National Institute of Technology Calicut, NIT campus, Kozhikode, Kerala 673601, India.,Corporate Head Office, HLL Lifecare Limited, Poojappura, Thiruvananthapuram, Kerala 695012, India
| | - Triveni Patil
- Department of Pharmaceutics, Bharati Vidyapeeth Deemed University, Poona College of Pharmacy, Erandwane, Pune, Maharashtra 411038, India
| | - Oly Katari
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Guwahati, Sila Katamur (Halugurisuk), Changsari, Kamrup, Guwahati, Assam 781101, India
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Liu X, Lai G, Guan J, Qian S, Wang Z, Cui S, Gao F, Jiao Y, Tao R. Technical optimization and life cycle assessment of environment-friendly superplasticizer for concrete engineering. CHEMOSPHERE 2021; 281:130955. [PMID: 34049084 DOI: 10.1016/j.chemosphere.2021.130955] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 05/15/2021] [Accepted: 05/18/2021] [Indexed: 06/12/2023]
Abstract
With the rapid development of the construction industry, it is necessary to synthesize environment-friendly functional polymers, especially when developing "green" construction industry types. Herein a novel solid-state polycarboxylate superplasticizer (PCE) with low energy-consumption was designed and synthesized. In industrial application, solid-state PCE has exhibited better cement paste fluidity and concrete slump compared to liquid-state PCE. A life cycle assessment (LCA) of the PCE synthesis, the packaging materials used, and the transportation of the PCE were conducted based on the ReCiPe method. The results indicated that liquid-state PCE has a far greater environmental impact at >60% than solid-state PCE, which is less significant at <40%. The inventory data that are associated with the production of the new polymer are disclosed for the first time to enrich the related database in this field. This study demonstrates the optimization of the state and synthesis technique of a functional polymer, improving the performance and lowering the environmental impacts involved in producing the polymer, while reducing the risks to human health and protecting the ecosystem at the same time.
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Affiliation(s)
- Xiao Liu
- Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing, 100124, China; Faculty of Materials and Manufacturing, National Engineering Laboratory for Industrial Big-data Application Technology, Beijing University of Technology, Beijing, 100124, China.
| | - Guanghong Lai
- Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing, 100124, China; Faculty of Materials and Manufacturing, National Engineering Laboratory for Industrial Big-data Application Technology, Beijing University of Technology, Beijing, 100124, China.
| | - Jianan Guan
- Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing, 100124, China; Faculty of Materials and Manufacturing, National Engineering Laboratory for Industrial Big-data Application Technology, Beijing University of Technology, Beijing, 100124, China.
| | - Shanshan Qian
- Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing, 100124, China.
| | - Ziming Wang
- Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing, 100124, China; Faculty of Materials and Manufacturing, National Engineering Laboratory for Industrial Big-data Application Technology, Beijing University of Technology, Beijing, 100124, China.
| | - Suping Cui
- Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing, 100124, China; Faculty of Materials and Manufacturing, National Engineering Laboratory for Industrial Big-data Application Technology, Beijing University of Technology, Beijing, 100124, China.
| | - Feng Gao
- Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing, 100124, China; Faculty of Materials and Manufacturing, National Engineering Laboratory for Industrial Big-data Application Technology, Beijing University of Technology, Beijing, 100124, China.
| | - Yulong Jiao
- Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing, 100124, China; Faculty of Materials and Manufacturing, National Engineering Laboratory for Industrial Big-data Application Technology, Beijing University of Technology, Beijing, 100124, China.
| | - Ran Tao
- Advanced Construction Materials CO., LTD., Beijing Construction Engineering Group, Beijing, 100037, China.
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Tabare E, Glonti T, Cochez C, Ngassam C, Pirnay JP, Amighi K, Goole J. A Design of Experiment Approach to Optimize Spray-Dried Powders Containing Pseudomonas aeruginosaPodoviridae and Myoviridae Bacteriophages. Viruses 2021; 13:v13101926. [PMID: 34696356 PMCID: PMC8541621 DOI: 10.3390/v13101926] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 09/19/2021] [Accepted: 09/22/2021] [Indexed: 11/16/2022] Open
Abstract
In the present study, we evaluated the effect of spray-drying formulations and operating parameters of a laboratory-scale spray-dryer on the characteristics of spray-dried powders containing two Pseudomonas aeruginosa bacteriophages exhibiting different morphotypes: a podovirus (LUZ19) and a myovirus (14-1). We optimized the production process for bacteriophage-loaded powders, with an emphasis on long-term storage under ICH (international conference on harmonization) conditions. D-trehalose-/L-isoleucine-containing bacteriophage mixtures were spray-dried from aqueous solutions using a Büchi Mini Spray-dryer B-290 (Flawil, Switzerland). A response surface methodology was used for the optimization of the spray-drying process, with the following as-evaluated parameters: Inlet temperature, spray gas flow rate, and the D-trehalose/L-isoleucine ratio. The dried powders were characterized in terms of yield, residual moisture content, and bacteriophage lytic activity. L-isoleucine has demonstrated a positive impact on the activity of LUZ19, but a negative impact on 14-1. We observed a negligible impact of the inlet temperature and a positive correlation of the spray gas flow rate with bacteriophage activity. After optimization, we were able to obtain dry powder preparations of both bacteriophages, which were stable for a minimum of one year under different ICH storage conditions (up to and including 40 °C and 75% relative humidity).
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Affiliation(s)
- Emilie Tabare
- Laboratory of Pharmaceutics and Biopharmaceutics, Faculty of Pharmacy, ULB, 1050 Brussels, Belgium; (K.A.); (J.G.)
- Correspondence:
| | - Tea Glonti
- Laboratory for Molecular and Cellular Technology, Queen Astrid Military Hospital, 1120 Brussels, Belgium; (T.G.); (C.C.); (J.-P.P.)
| | - Christel Cochez
- Laboratory for Molecular and Cellular Technology, Queen Astrid Military Hospital, 1120 Brussels, Belgium; (T.G.); (C.C.); (J.-P.P.)
| | | | - Jean-Paul Pirnay
- Laboratory for Molecular and Cellular Technology, Queen Astrid Military Hospital, 1120 Brussels, Belgium; (T.G.); (C.C.); (J.-P.P.)
| | - Karim Amighi
- Laboratory of Pharmaceutics and Biopharmaceutics, Faculty of Pharmacy, ULB, 1050 Brussels, Belgium; (K.A.); (J.G.)
| | - Jonathan Goole
- Laboratory of Pharmaceutics and Biopharmaceutics, Faculty of Pharmacy, ULB, 1050 Brussels, Belgium; (K.A.); (J.G.)
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120
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Öztürk AA, Arpagaus C. Nano Spray-Dried Drugs for Oral Administration: A Review. Assay Drug Dev Technol 2021; 19:412-441. [PMID: 34550790 DOI: 10.1089/adt.2021.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Spray drying is an important technology that is fast, simple, reproducible, and scalable. It has a wide application range, that is, in food, chemicals, and encapsulation of pharmaceuticals. The technology can be divided into conventional spray drying and nano spray drying. The key advantage of nano spray drying is the production of drug-loaded nanosized particles for various drug delivery applications. The recent developments in nano spray dryer technology and the market launch of the Nano Spray Dryer B-90 by Büchi Labortechnik AG in 2009 enabled the production of submicron spray-dried particles. This review focuses on nanosized drug delivery systems intended for oral administration produced by nano spray drying. First, the nano spray drying concept, the basic technologies implemented in the equipment, and the effects of the various process parameters on the final dry submicron powder properties are presented. Then, the topics of new formulation strategies of oral drugs are highlighted with examples that have entered the research literature in recent years. Next, the subjects of direct conversion of poorly water-soluble drugs, encapsulation of drugs, and drying of preformed nanoparticles are considered. Finally, topics such as morphology, particle size, size distribution, surface analysis, bioavailability, drug release, release kinetics, and solid-state characterization (by differential scanning calorimetry, X-ray diffraction, Fourier transform infrared spectroscopy, nuclear magnetic resonance) of oral drug delivery systems produced by nano spray drying are discussed. The review attempts to provide a comprehensive knowledge base with current literature and foresight to researchers working in the field of pharmaceutical technology and nanotechnology and especially in the field of nano spray drying.
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Affiliation(s)
- A Alper Öztürk
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey
| | - Cordin Arpagaus
- Institute for Energy Systems, Eastern Switzerland University of Applied Sciences of Technology, Buchs, Switzerland
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121
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Chae J, Choi Y, Tanaka M, Choi J. Inhalable nanoparticles delivery targeting alveolar macrophages for the treatment of pulmonary tuberculosis. J Biosci Bioeng 2021; 132:543-551. [PMID: 34538591 DOI: 10.1016/j.jbiosc.2021.08.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 08/19/2021] [Accepted: 08/22/2021] [Indexed: 12/15/2022]
Abstract
Pulmonary tuberculosis is a highly prevalent respiratory disease that affects approximately a quarter of the world's population. The drug treatment protocol for tuberculosis is complex because the Mycobacterium tuberculosis (M. tuberculosis) invades macrophages and begins to infect. Thus treatment usually includes combination therapy with several drugs such as rifampicin, pyrazinamide, isoniazid, and ethambutol over a long dosing period. Therefore, drug-delivery technologies have been developed to improve patient compliance with medication, reduce adverse effects, and increase effectiveness of the treatment. In the present review, we have discussed recent inhalable nanopharmaceutical systems for the treatment of pulmonary tuberculosis and investigated their design and effectiveness. We examined the underlying processes and characteristics of spray-drying technology and studied the formulation of a dry carrier using spray-drying method. Moreover, we reviewed various research articles on pulmonary delivery of nanoparticles using these carriers, and studied their alveolar macrophage targeting ability and therapeutic effects. Further, we appraised the effectiveness of nanoparticle inhalation therapy for the treatment of pulmonary tuberculosis and its potential as a treatment strategy for lung diseases.
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Affiliation(s)
- Jayoung Chae
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yonghyun Choi
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Masayoshi Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1-S1-24, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Jonghoon Choi
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea.
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122
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Evangelista DGD, Vicerra RRP, Bandala AA, Sybingco E, Dadios EP. Application of Fuzzy Logic for Controlling Spray Drying Parameters in Production of Bignay ( Antidesma Bunius) Juice Powder. JOURNAL OF ADVANCED COMPUTATIONAL INTELLIGENCE AND INTELLIGENT INFORMATICS 2021. [DOI: 10.20965/jaciii.2021.p0625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Spray drying is a rapid, continuous, cost-effective, reproducible, and scalable process for reducing the moisture content of a fluid material into a solid powder. To improve this process in juice powder production, automation can be applied to increase efficiency and productivity. Hence, fuzzy logic is used in this study as a control system in the spray-drying process of concentrated liquid bignay juice into juice powder, where the inlet temperature and carrier agent concentrations affecting the properties of the juice powder, such as moisture content and product yield, are considered. The proposed fuzzy system can provide feedback to the control variables, inlet temperature, and carrier agent concentration based on the moisture content and product yield of the juice powder.
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123
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Ali A, Zaman A, Sayed E, Evans D, Morgan S, Samwell C, Hall J, Arshad MS, Singh N, Qutachi O, Chang MW, Ahmad Z. Electrohydrodynamic atomisation driven design and engineering of opportunistic particulate systems for applications in drug delivery, therapeutics and pharmaceutics. Adv Drug Deliv Rev 2021; 176:113788. [PMID: 33957180 DOI: 10.1016/j.addr.2021.04.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/20/2021] [Accepted: 04/28/2021] [Indexed: 12/18/2022]
Abstract
Electrohydrodynamic atomisation (EHDA) technologies have evolved significantly over the past decade; branching into several established and emerging healthcare remits through timely advances in the engineering sciences and tailored conceptual process designs. More specifically for pharmaceutical and drug delivery spheres, electrospraying (ES) has presented itself as a high value technique enabling a plethora of different particulate structures. However, when coupled with novel formulations (e.g. co-flows) and innovative device aspects (e.g., materials and dimensions), core characteristics of particulates are manipulated and engineered specifically to deliver an application driven need, which is currently lacking, ranging from imaging and targeted delivery to controlled release and sensing. This demonstrates the holistic nature of these emerging technologies; which is often overlooked. Parametric driven control during particle engineering via the ES method yields opportunistic properties when compared to conventional methods, albeit at ambient conditions (e.g., temperature and pressure), making this extremely valuable for sensitive biologics and molecules of interest. Furthermore, several processing (e.g., flow rate, applied voltage and working distance) and solution (e.g., polymer concentration, electrical conductivity and surface tension) parameters impact ES modes and greatly influence the production of resulting particles. The formation of a steady cone-jet and subsequent atomisation during ES fabricates particles demonstrating monodispersity (or near monodispersed), narrow particle size distributions and smooth or textured morphologies; all of which are successfully incorporated in a one-step process. By following a controlled ES regime, tailored particles with various intricate structures (hollow microspheres, nanocups, Janus and cell-mimicking nanoparticles) can also be engineered through process head modifications central to the ES technique (single-needle spraying, coaxial, multi-needle and needleless approaches). Thus, intricate formulation design, set-up and combinatorial engineering of the EHDA process delivers particulate structures with a multitude of applications in tissue engineering, theranostics, bioresponsive systems as well as drug dosage forms for specific delivery to diseased or target tissues. This advanced technology has great potential to be implemented commercially, particularly on the industrial scale for several unmet pharmaceutical and medical challenges and needs. This review focuses on key seminal developments, ending with future perspectives addressing obstacles that need to be addressed for future advancement.
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124
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Di Prima G, Angellotti G, Scarpaci AG, Murgia D, D’agostino F, Campisi G, De Caro V. Improvement of Resveratrol Permeation through Sublingual Mucosa: Chemical Permeation Enhancers versus Spray Drying Technique to Obtain Fast-Disintegrating Sublingual Mini-Tablets. Pharmaceutics 2021; 13:pharmaceutics13091370. [PMID: 34575446 PMCID: PMC8470294 DOI: 10.3390/pharmaceutics13091370] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/28/2021] [Accepted: 08/29/2021] [Indexed: 12/24/2022] Open
Abstract
Resveratrol (RSV) is a natural polyphenol with several interesting broad-spectrum pharmacological properties. However, it is characterized by poor oral bioavailability, extensive first-pass effect metabolism and low stability. Indeed, RSV could benefit from the advantage of the sublingual route of administration. In this view, RSV attitudes to crossing the porcine sublingual mucosa were evaluated and promoted both by six different chemical permeation enhancers (CPEs) as well as by preparing four innovative fast-disintegrating sublingual mini-tablets by spray drying followed by direct compression. Since RSV by itself exhibits a low permeation aptitude, this could be significantly enhanced by the use of CPEs as well as by embedding RSV in a spray-dried powder to be compressed in order to prepare fast-disintegrating mini-tablets. The most promising observed CPEs (menthol, lysine and urea) were then inserted into the most promising spray-dried excipients’ compositions (RSV-B and RSV-C), thus preparing CPE-loaded mini-tablets. However, this procedure leads to unsatisfactory results which preclude the possibility of merging the two proposed approaches. Finally, the best spray-dried composition (RSV-B) was further evaluated by SEM, FTIR, XRD and disintegration as well as dissolution behavior to prove its effectiveness as a sublingual fast-disintegrating formulation.
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Affiliation(s)
- Giulia Di Prima
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Via Archirafi 32, 90123 Palermo, Italy; (G.A.); (A.G.S.); (D.M.); (V.D.C.)
- Correspondence:
| | - Giuseppe Angellotti
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Via Archirafi 32, 90123 Palermo, Italy; (G.A.); (A.G.S.); (D.M.); (V.D.C.)
- Dipartimento di Discipline Chirurgiche, Oncologiche e Stomatologiche, Università degli Studi di Palermo, 90127 Palermo, Italy;
| | - Amalia Giulia Scarpaci
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Via Archirafi 32, 90123 Palermo, Italy; (G.A.); (A.G.S.); (D.M.); (V.D.C.)
| | - Denise Murgia
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Via Archirafi 32, 90123 Palermo, Italy; (G.A.); (A.G.S.); (D.M.); (V.D.C.)
| | - Fabio D’agostino
- Istituto per lo Studio degli Impatti Antropici e Sostenibilità dell’Ambiente Marino, Consiglio Nazionale delle Ricerche (IAS—CNR), Campobello di Mazara, 91021 Trapani, Italy;
| | - Giuseppina Campisi
- Dipartimento di Discipline Chirurgiche, Oncologiche e Stomatologiche, Università degli Studi di Palermo, 90127 Palermo, Italy;
| | - Viviana De Caro
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Via Archirafi 32, 90123 Palermo, Italy; (G.A.); (A.G.S.); (D.M.); (V.D.C.)
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125
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Charles APR, Jin TZ, Mu R, Wu Y. Electrohydrodynamic processing of natural polymers for active food packaging: A comprehensive review. Compr Rev Food Sci Food Saf 2021; 20:6027-6056. [PMID: 34435448 DOI: 10.1111/1541-4337.12827] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 07/14/2021] [Accepted: 07/26/2021] [Indexed: 12/21/2022]
Abstract
The active packaging materials fabricated using natural polymers is increasing in recent years. Electrohydrodynamic processing has drawn attention in active food packaging due to its potential in fabricating materials with advanced structural and functional properties. These materials have the significant capability in enhancing food's quality, safety, and shelf-life. Through electrospinning and electrospray, fibers and particles are encapsulated with bioactive compounds for active packaging applications. Understanding the principle behind electrohydrodynamics provides fundamentals in modulating the material's physicochemical properties based on the operating parameters. This review provides a deep understanding of electrospray and electrospinning, along with their advantages and recent innovations, from food packaging perspectives. The natural polymers suitable for developing active packaging films and coatings through electrohydrodynamics are intensely focused. The critical properties of the packaging system are discussed with characterization techniques. Furthermore, the limitations and prospects for natural polymers and electrohydrodynamic processing in active packaging are summarized.
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Affiliation(s)
- Anto Pradeep Raja Charles
- Food and Animal Sciences Program, Department of Agricultural and Environmental Sciences, Tennessee State University, Nashville, Tennessee, USA
| | - Tony Z Jin
- U.S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pennsylvania, USA
| | - Richard Mu
- Interdisciplinary Graduate Engineering Research Institute, Tennessee State University, Nashville, Tennessee, USA
| | - Ying Wu
- Food and Animal Sciences Program, Department of Agricultural and Environmental Sciences, Tennessee State University, Nashville, Tennessee, USA
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126
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Borde S, Paul SK, Chauhan H. Ternary solid dispersions: classification and formulation considerations. Drug Dev Ind Pharm 2021; 47:1011-1028. [PMID: 33818224 DOI: 10.1080/03639045.2021.1908342] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The number of active pharmaceutical compounds from the biopharmaceutical classification system (BCS) belonging to Class II and IV have significantly increased in recent years. These compounds have high therapeutic potential but are difficult to formulate as oral dosage forms due to their poor aqueous solubility. The solubility and bioavailability of these poorly water-soluble compounds can be increased by various formulation approaches, such as amorphous solid dispersions (ASD), salt formation, complexations, etc. Out of these techniques, the ASD approach, where compounds are converted into amorphous form and embedded in the hydrophilic matrix, have been successfully used in many marketed preparations. The recent advancement of this ASD approach is the design of ternary solid dispersions (TSD), where an additional component is added to further improve their performance in terms of solubility, stability, and processability. This review discusses the classification, mechanism of performance improvement, preparation techniques, and characterizations for TSD.
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Affiliation(s)
- Shambhavi Borde
- School of Pharmacy and Health Professions, Creighton University, Omaha, NE, USA
| | - Sagar Kumar Paul
- School of Pharmacy and Health Professions, Creighton University, Omaha, NE, USA
| | - Harsh Chauhan
- School of Pharmacy and Health Professions, Creighton University, Omaha, NE, USA
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127
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Albetawi S, Abdalhafez A, Abu-Zaid A, Matrouk A, Alhourani N. Recent solubility and dissolution enhancement techniques for repaglinide a BCS class II drug: a review. PHARMACIA 2021. [DOI: 10.3897/pharmacia.68.e66586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Repaglinide is an oral blood-glucose-lowering drug used to manage type-2 diabetes mellitus by lowering post-prandial glucose by stimulating insulin secretion from pancreatic beta cells.
According to the biopharmaceutical classification system, repaglinide falls under the class II category. For such drugs, limited solubility and poor dissolution rate are the major hurdles to overcome by formulation scientists, as they hinder drug absorption and lead to inadequate therapeutic effects.
Therefore, this review aims to discuss in depth the various approaches investigated in the past five years to improve the solubility and dissolution of orally administered repaglinide: namely, solid dispersion, co-amorphous technology, cyclodextrin complexation, phospholipid complexes and polymeric micelles, nanocrystals, nanosuspensions and nanofibers.
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128
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Gonçalves A, Estevinho BN, Rocha F. Methodologies for simulation of gastrointestinal digestion of different controlled delivery systems and further uptake of encapsulated bioactive compounds. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.06.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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129
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Tahir A, Shabir Ahmad R, Imran M, Ahmad MH, Kamran Khan M, Muhammad N, Nisa MU, Tahir Nadeem M, Yasmin A, Tahir HS, Zulifqar A, Javed M. Recent approaches for utilization of food components as nano-encapsulation: a review. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2021. [DOI: 10.1080/10942912.2021.1953067] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ali Tahir
- Department of Food Science, Faculty of Life Sciences, Government College University, Faisalabad, Punjab, Pakistan
| | - Rabia Shabir Ahmad
- Department of Food Science, Faculty of Life Sciences, Government College University, Faisalabad, Punjab, Pakistan
| | - Muhammad Imran
- Department of Food Science, Faculty of Life Sciences, Government College University, Faisalabad, Punjab, Pakistan
| | - Muhammad Haseeb Ahmad
- Department of Food Science, Faculty of Life Sciences, Government College University, Faisalabad, Punjab, Pakistan
| | - Muhammad Kamran Khan
- Department of Food Science, Faculty of Life Sciences, Government College University, Faisalabad, Punjab, Pakistan
| | - Niaz Muhammad
- National Agriculture Education College, Kabul, Afghanistan
| | - Mahr Un Nisa
- Department of Nutritional Sciences, Faculty of Medical Sciences, Government College University, Faisalabad
| | - Muhammad Tahir Nadeem
- Department of Food Science, Faculty of Life Sciences, Government College University, Faisalabad, Punjab, Pakistan
| | - Adeela Yasmin
- Department of Food Science, Faculty of Life Sciences, Government College University, Faisalabad, Punjab, Pakistan
| | - Hafiza Saima Tahir
- Department of Food Science, Faculty of Life Sciences, Government College University, Faisalabad, Punjab, Pakistan
| | - Aliza Zulifqar
- Department of Food Science, Faculty of Life Sciences, Government College University, Faisalabad, Punjab, Pakistan
| | - Miral Javed
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agri-Food Processing, Zhejiang University, Hangzhou, People’s Republic of China
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The Impact of Gelatin on the Pharmaceutical Characteristics of Fucoidan Microspheres with Posaconazole. MATERIALS 2021; 14:ma14154087. [PMID: 34361285 PMCID: PMC8347644 DOI: 10.3390/ma14154087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/12/2021] [Accepted: 07/19/2021] [Indexed: 11/23/2022]
Abstract
Fungal infections and invasive mycoses, despite the continuous medicine progress, are an important globally therapeutic problem. Multicompartment dosage formulations (e.g., microparticles) ensure a short drug diffusion way and high surface area of drug release, which as a consequence can provide improvement of therapeutic efficiency compared to the traditional drug dosage forms. As fucoidan is promising component with wide biological activity per se, the aim of this study was to prepare fucospheres (fucoidan microparticles) and fucoidan/gelatin microparticles with posaconazole using the one-step spray-drying technique. Pharmaceutical properties of designed fucospheres and the impact of the gelatin addition on their characteristics were evaluated. An important stage of this research was in vitro evaluation of antifungal activity of developed microparticles using different Candida species. It was observed that gelatin presence in microparticles significantly improved swelling capacity and mucoadhesiveness, and provided a sustained POS release. Furthermore, it was shown that gelatin addition enhanced antifungal activity of microparticles against tested Candida spp. strains. Microparticles formulation GF6, prepared by the spray drying of 20% fucoidan, 5% gelatin and 10% Posaconazole, were characterized by optimal mucoadhesive properties, high drug loading and the most sustained drug release (after 8 h 65.34 ± 4.10% and 33.81 ± 5.58% of posaconazole was dissolved in simulated vaginal fluid pH 4.2 or 0.1 M HCl pH 1.2, respectively).
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131
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A quantitative study of aggregation behaviour and integrity of spray-dried microcapsules using three deep convolutional neural networks with transfer learning. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2021.110515] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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132
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Smart gating porous particles as new carriers for drug delivery. Adv Drug Deliv Rev 2021; 174:425-446. [PMID: 33930490 DOI: 10.1016/j.addr.2021.04.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/12/2021] [Accepted: 04/23/2021] [Indexed: 12/13/2022]
Abstract
The design of smart drug delivery carriers has recently attracted great attention in the biomedical field. Smart carriers can specifically respond to physical and chemical changes in their environment, such as temperature, photoirradiation, ultrasound, magnetic field, pH, redox species, and biomolecules. This review summarizes recent advances in the integration of porous particles and stimuli-responsive gatekeepers for effective drug delivery. Their unique structural properties play an important role in facilitating the diffusion of drug molecules and cell attachment. Various techniques for fabricating porous materials, with their major advantages and limitations, are summarized. Smart gatekeepers provide advanced functions such as "open-close" switching by functionalized stimuli-responsive polymers on a particle's pores. These controlled delivery systems enable drugs to be targeted at specific rates, time programs, and sites of the human body. The gate structures, gating mechanisms, and controlled release mechanisms of each trigger are detailed. Current ongoing research and future trends in targeted drug delivery, tissue engineering, and regenerative medicine applications are highlighted.
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133
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Fluorine ( 19F) Nuclear Magnetic Resonance Spectroscopy For Real Time Maraviroc Analysis From Microparticulate Systems. J Pharm Sci 2021; 110:3605-3613. [PMID: 34216578 DOI: 10.1016/j.xphs.2021.06.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 11/21/2022]
Abstract
Real time analysis of pharmaceuticals in controlled release nano and microsystems remains a challenge. It is hypothesized that fluorine 19 nuclear magnetic resonance (19F qNMR) can be used for real time quantification and in vitro release of maraviroc (MVC). The release of maraviroc was analyzed in simulated body fluids from spray dried sodium alginate microspheres (MS) using the 19F qNMR method. Calibration produced a linearity curve in concentration range (0.42 mg/ml - 15 mg/ml), and the limits of detection and quantification values were 0.97 mg/ml and 2.93 mg/ml, respectively. The method was confirmed to be specific, accurate, precise, and robust (%RSE > 2%). MVC was successfully microencapsulated (18% w/w) as evidenced by the FT-IR spectra and SEM images. The MS had an average diameter of 2.522 ± 0.15 μm, with a zeta potential of - 61.31 ± 2.1 mV. Overall, the 19F qNMR method enabled a direct and real time quantification of MVC for an efficient drug release kinetics. This approach could be potentially used to quantify fluorinated drug potency, purity, and stability, and evaluate in vitro release kinetic from different formulations.
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134
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Biopesticide Encapsulation Using Supercritical CO 2: A Comprehensive Review and Potential Applications. Molecules 2021; 26:molecules26134003. [PMID: 34209179 PMCID: PMC8272144 DOI: 10.3390/molecules26134003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/27/2021] [Accepted: 06/28/2021] [Indexed: 01/06/2023] Open
Abstract
As an alternative to synthetic pesticides, natural chemistries from living organisms, are not harmful to nontarget organisms and the environment, can be used as biopesticides, nontarget. However, to reduce the reactivity of active ingredients, avoid undesired reactions, protect from physical stress, and control or lower the release rate, encapsulation processes can be applied to biopesticides. In this review, the advantages and disadvantages of the most common encapsulation processes for biopesticides are discussed. The use of supercritical fluid technology (SFT), mainly carbon dioxide (CO2), to encapsulate biopesticides is highlighted, as they reduce the use of organic solvents, have simpler separation processes, and achieve high-purity particles. This review also presents challenges to be surpassed and the lack of application of SFT for biopesticides in the published literature is discussed to evaluate its potential and prospects.
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135
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Optimizing viability and yield and improving stability of Gram-negative, non-spore forming plant-beneficial bacteria encapsulated by spray-drying. Bioprocess Biosyst Eng 2021; 44:2289-2301. [PMID: 34184107 DOI: 10.1007/s00449-021-02604-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/17/2021] [Indexed: 10/21/2022]
Abstract
This study investigates methods to commercialize safer alternatives to chemical pesticides that pose risks to human safety and the environment. Spray-drying encapsulation of the plant-protective, antifungal bacterium Collimonas arenae Cal35 in in situ cross-linked alginate microcapsules (CLAMs) was optimized to minimize losses during spray-drying and maximize yield of spray-dried powder. Only inlet temperature significantly affected survival during spray-drying, while inlet temperature, spray rate, and alginate concentration significantly affected yield of spray-dried powder. Lowering inlet temperature to 95 °C provided the greatest survival during spray-drying, while increasing inlet temperature and lowering spray rate and alginate concentration produced the highest yield. Without the CLAMs formulation, Cal35 did not survive spray-drying. When Cal35 was encapsulated in CLAMs in the presence of modified starch, shelf survival was extended to 3 weeks in a low oxygen, low humidity storage environment. Cal35 retained its antifungal activity throughout spray-drying and shelf storage, supporting its potential use as a formulated biofungicide product.
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136
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Martín-Diana AB, Tomé-Sánchez I, García-Casas MJ, Martínez-Villaluenga C, Frías J, Rico D. A Novel Strategy to Produce a Soluble and Bioactive Wheat Bran Ingredient Rich in Ferulic Acid. Antioxidants (Basel) 2021; 10:antiox10060969. [PMID: 34208721 PMCID: PMC8234745 DOI: 10.3390/antiox10060969] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/08/2021] [Accepted: 06/10/2021] [Indexed: 12/20/2022] Open
Abstract
Wheat bran (WB) is a byproduct from the milling industry that contains bioactive compounds beneficial to human health. The aim of this work was on the one hand, increasing extractability of antioxidant and anti-inflammatory compounds (specifically ferulic acid, FA), through enzymatic hydrolysis combined with hydrothermal treatment (HT) and high hydrostatic pressure (HHP). On the other hand, enhancing the stability of final ingredient applying spray-drying (SPD) and microencapsulation (MEC). The use of HT increased FA, total phenolics (TP), and antioxidant capacity (AC) in WB hydrolysates, regardless the HT duration. However, the HT tested (30 min, HT30) produced a loss in anti-inflammatory activity (AIA). The combination of HT (15 min, HT15) with HHP increased AIA of the WB. SPD enhanced the TP yield in WB with no significant effect of inlet temperature (up to 140 °C) on phenolic profile mainly composed of trans-FA and smaller amounts of cis-FA and apigenin diglucosides. SPD caused a temperature-dependent increase in AC (160 °C > 140 °C > 130 °C). SPD inlet temperatures affected total solids yield (from 22 to 36%), with the highest values at 140 °C. The use of HHP in combination with HT resulted in >2-fold increase in total solids yield.
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Affiliation(s)
- Ana Belén Martín-Diana
- Agricultural Technological Institute of Castile and Leon (ITACyL), Government of Castile and Leon, Ctra. de Burgos Km. 119, Finca Zamadueñas, 47071 Valladolid, Spain; (M.J.G.-C.); (D.R.)
- Correspondence: ; Tel.: +34-983-41-0366
| | - Irene Tomé-Sánchez
- Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), José Antonio Novais 10, 28040 Madrid, Spain; (I.T.-S.); (C.M.-V.); (J.F.)
| | - María Jesús García-Casas
- Agricultural Technological Institute of Castile and Leon (ITACyL), Government of Castile and Leon, Ctra. de Burgos Km. 119, Finca Zamadueñas, 47071 Valladolid, Spain; (M.J.G.-C.); (D.R.)
| | - Cristina Martínez-Villaluenga
- Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), José Antonio Novais 10, 28040 Madrid, Spain; (I.T.-S.); (C.M.-V.); (J.F.)
| | - Juana Frías
- Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), José Antonio Novais 10, 28040 Madrid, Spain; (I.T.-S.); (C.M.-V.); (J.F.)
| | - Daniel Rico
- Agricultural Technological Institute of Castile and Leon (ITACyL), Government of Castile and Leon, Ctra. de Burgos Km. 119, Finca Zamadueñas, 47071 Valladolid, Spain; (M.J.G.-C.); (D.R.)
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137
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Thiyagarajan D, Huck B, Nothdurft B, Koch M, Rudolph D, Rutschmann M, Feldmann C, Hozsa C, Furch M, Besecke KFW, Gieseler RK, Loretz B, Lehr CM. Spray-dried lactose-leucine microparticles for pulmonary delivery of antimycobacterial nanopharmaceuticals. Drug Deliv Transl Res 2021; 11:1766-1778. [PMID: 34101127 PMCID: PMC8236044 DOI: 10.1007/s13346-021-01011-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2021] [Indexed: 12/20/2022]
Abstract
Pulmonary delivery of nanocarriers for novel antimycobacterial compounds is challenging because the aerodynamic properties of nanomaterials are sub-optimal for such purposes. Here, we report the development of dry powder formulations for nanocarriers containing benzothiazinone 043 (BTZ) or levofloxacin (LVX), respectively. The intricacy is to generate dry powder aerosols with adequate aerodynamic properties while maintaining both nanostructural integrity and compound activity until reaching the deeper lung compartments. Microparticles (MPs) were prepared using vibrating mesh spray drying with lactose and leucine as approved excipients for oral inhalation drug products. MP morphologies and sizes were measured using various biophysical techniques including determination of geometric and aerodynamic mean sizes, X-ray diffraction, and confocal and focused ion beam scanning electron microscopy. Differences in the nanocarriers’ characteristics influenced the MPs’ sizes and shapes, their aerodynamic properties, and, hence, also the fraction available for lung deposition. Spay-dried powders of a BTZ nanosuspension, BTZ-loaded silica nanoparticles (NPs), and LVX-loaded liposomes showed promising respirable fractions, in contrast to zirconyl hydrogen phosphate nanocontainers. While the colloidal stability of silica NPs was improved after spray drying, MPs encapsulating either BTZ nanosuspensions or LVX-loaded liposomes showed the highest respirable fractions and active pharmaceutical ingredient loads. Importantly, for the BTZ nanosuspension, biocompatibility and in vitro uptake by a macrophage model cell line were improved even further after spray drying. ![]()
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Affiliation(s)
- Durairaj Thiyagarajan
- Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Campus E8.1, 66123, Saarbrucken, Germany
| | - Benedikt Huck
- Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Campus E8.1, 66123, Saarbrucken, Germany.,Department of Pharmacy, Saarland University, 66123, Saarbrucken, Germany
| | - Birgit Nothdurft
- , INM - Leibniz Institute for New Materials, Campus D2 2, 66123, Saarbrucken, Germany
| | - Marcus Koch
- , INM - Leibniz Institute for New Materials, Campus D2 2, 66123, Saarbrucken, Germany
| | - David Rudolph
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131, Karlsruhe, Germany
| | - Mark Rutschmann
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131, Karlsruhe, Germany
| | - Claus Feldmann
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131, Karlsruhe, Germany
| | - Constantin Hozsa
- Rodos Biotarget GmbH, Feodor-Lynen-Str. 31, 30625, Hannover, Germany.,Siegfried AG Hameln, 31789, Hameln, Germany
| | - Marcus Furch
- Rodos Biotarget GmbH, Feodor-Lynen-Str. 31, 30625, Hannover, Germany.,Biolife Holding GmbH & Co. KG, 69126, Heidelberg, Germany
| | - Karen F W Besecke
- Rodos Biotarget GmbH, Feodor-Lynen-Str. 31, 30625, Hannover, Germany
| | - Robert K Gieseler
- Rodos Biotarget GmbH, Feodor-Lynen-Str. 31, 30625, Hannover, Germany.,Department of Medicine, University Hospital Bochum, 44892, Bochum, Germany
| | - Brigitta Loretz
- Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Campus E8.1, 66123, Saarbrucken, Germany.
| | - Claus-Michael Lehr
- Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Campus E8.1, 66123, Saarbrucken, Germany.,Department of Pharmacy, Saarland University, 66123, Saarbrucken, Germany
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138
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Carlan IC, Estevinho BN, Rocha F. Innovation and improvement in food fortification: Microencapsulation of vitamin B2 and B3 by a spray-drying method and evaluation of the simulated release profiles. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2021.1924768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ioana C. Carlan
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
| | - Berta N. Estevinho
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
| | - Fernando Rocha
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
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139
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Mahanti NK, Chakraborty SK, Sudhakar A, Verma DK, Shankar S, Thakur M, Singh S, Tripathy S, Gupta AK, Srivastav PP. Refractance WindowTM-Drying vs. other drying methods and effect of different process parameters on quality of foods: A comprehensive review of trends and technological developments. FUTURE FOODS 2021. [DOI: 10.1016/j.fufo.2021.100024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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140
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Ke WR, Kwok PCL, Khanal D, Chang RYK, Chan HK. Co-spray dried hydrophobic drug formulations with crystalline lactose for inhalation aerosol delivery. Int J Pharm 2021; 602:120608. [PMID: 33862136 DOI: 10.1016/j.ijpharm.2021.120608] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 04/05/2021] [Accepted: 04/11/2021] [Indexed: 01/15/2023]
Abstract
Spray drying is a rapid method for converting a liquid feed into dried particles for inhalation aerosols. Lactose is a major inhalation excipient used in spray-dried (SD) formulations. However, SD powders produced from solutions are usually amorphous hence unstable to moisture. This problem can potentially be minimized by spray drying a suspension (instead of solution) containing crystalline lactose particles and dissolved drugs. In the present study, the suspension formulation containing dissolved budesonide (BUD) or rifampicin (RIF) and suspended lactose crystals in isopropanol alcohol (IPA) were produced. For comparison, powders were also produced from solution formulations containing the same proportions of drug and lactose dissolved in 50:50 IPA/water as controls. These SD powders were stored at 25 °C/60% RH and 40 °C/75% RH for six months. The particulate properties and in vitro dispersion performance were examined at various storage time points. All powders obtained from spray drying of solutions recrystallized after one week of storage at 25 °C/60% RH. In contrast, SD BUD-lactose obtained from suspension did not change until after three-months of storage when the particle size increased gradually with morphology change and yet the crystallinity remained the same as determined by X-ray powder diffraction. For the SD RIF-lactose obtained from suspension, both particulate properties and in vitro powder dispersion performance showed no significant difference before and after storage at both storage conditions. To conclude, this is the first study to show that SD powder formulations obtained from suspensions containing lactose crystals demonstrated superior storage stability performance, which is desirable for inhaled powders.
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Affiliation(s)
- Wei-Ren Ke
- Advanced Drug Delivery Group, School of Pharmacy, University of Sydney, Sydney, NSW, Australia
| | - Philip Chi Lip Kwok
- Advanced Drug Delivery Group, School of Pharmacy, University of Sydney, Sydney, NSW, Australia
| | - Dipesh Khanal
- Advanced Drug Delivery Group, School of Pharmacy, University of Sydney, Sydney, NSW, Australia
| | - Rachel Yoon Kyung Chang
- Advanced Drug Delivery Group, School of Pharmacy, University of Sydney, Sydney, NSW, Australia
| | - Hak-Kim Chan
- Advanced Drug Delivery Group, School of Pharmacy, University of Sydney, Sydney, NSW, Australia.
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141
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Adsorptive capacity of spray-dried pH-treated bentonite and kaolin powders for ammonium removal. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.02.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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142
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Schweitzer JM, Servel M, Salvatori F, Dandeu A, Minière M, Joly JF, Gaubert Q, Barbosa S, Onofri FR. Spray drying of colloidal suspensions: Coupling of particle drying and transport models with experimental validations. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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143
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Wardhani DH, Ulya HN, Rahmawati A, Sugiarto TV, Kumoro AC, Aryanti N. Preparation of degraded alginate as a pH-dependent release matrix for spray-dried iron and its encapsulation performances. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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144
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Elik A, Koçak Yanık D, Göğüş F. A comparative study of encapsulation of carotenoid enriched-flaxseed oil and flaxseed oil by spray freeze-drying and spray drying techniques. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111153] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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145
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A Review of Pharmaceutical Nano-Cocrystals: A Novel Strategy to Improve the Chemical and Physical Properties for Poorly Soluble Drugs. CRYSTALS 2021. [DOI: 10.3390/cryst11050463] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nowadays, many commercial drugs have poor solubility and bioavailability. Cocrystals are formulated to modulate active pharmaceutical ingredients’ properties with improved solubility, dissolution, and bioavailability compared to their pristine individual components in the pharmaceutical industry. Nano-cocrystals, crystals in the nano range, can further enhance these properties because of not only the cocrystal structure, but also the large surface to volume ratio of nanocrystals. Even though there are many studies on cocrystals, the research of pharmaceutical nano-cocrystals is still in the initial stage. Thus, it is necessary to conduct a systematic study on pharmaceutical nano-cocrystals. In this review, the possible preparation approaches of nano-cocrystals have been reported. To have a comprehensive understanding of nano-cocrystals, some analytical techniques and characterizations will be discussed in detail. In addition, the feasible therapeutic application of nano-cocrystals will be presented. This work is expected to provide guidance to develop new nano-cocrystals with commercial value in the pharmaceutical industry.
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146
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Arzi RS, Kay A, Raychman Y, Sosnik A. Excipient-Free Pure Drug Nanoparticles Fabricated by Microfluidic Hydrodynamic Focusing. Pharmaceutics 2021; 13:529. [PMID: 33920184 PMCID: PMC8069523 DOI: 10.3390/pharmaceutics13040529] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 01/03/2023] Open
Abstract
Nanoprecipitation is one of the most versatile methods to produce pure drug nanoparticles (PDNPs) owing to the ability to optimize the properties of the product. Nevertheless, nanoprecipitation may result in broad particle size distribution, low physical stability, and batch-to-batch variability. Microfluidics has emerged as a powerful tool to produce PDNPs in a simple, reproducible, and cost-effective manner with excellent control over the nanoparticle size. In this work, we designed and fabricated T- and Y-shaped Si-made microfluidic devices and used them to produce PDNPs of three kinase inhibitors of different lipophilicity and water-solubility, namely imatinib, dasatinib and tofacitinib, without the use of colloidal stabilizers. PDNPs display hydrodynamic diameter in the 90-350 nm range as measured by dynamic light scattering and a rounded shape as visualized by high-resolution scanning electron microscopy. Powder X-ray diffraction and differential scanning calorimetry confirmed that this method results in highly amorphous nanoparticles. In addition, we show that the flow rate of solvent, the anti-solvent, and the channel geometry of the device play a key role governing the nanoparticle size.
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Affiliation(s)
- Roni Sverdlov Arzi
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, 3200003 Haifa, Israel; (R.S.A.); (Y.R.)
| | - Asaf Kay
- Laboratory of Electrochemical Materials and Devices, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, 3200003 Haifa, Israel;
| | - Yulia Raychman
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, 3200003 Haifa, Israel; (R.S.A.); (Y.R.)
| | - Alejandro Sosnik
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, 3200003 Haifa, Israel; (R.S.A.); (Y.R.)
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147
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da Silva RMF, Gomes TCBL, Campos AF, Vilela WT, Silva PA, Sales VDAW, de Medeiros Schver GCR, da Silva KER, Costa SPM, de Souza FS, de Freitas MCC, Arruda MSP, da Silva MN, Rolim Neto PJ. Obtainment of the spray-dried extracts of Peperomia pellucida L. (H.B.K.) using different atomization temperatures: physicochemical characterization and technological development for pharmaceutical applications. Daru 2021; 29:147-158. [PMID: 33813721 DOI: 10.1007/s40199-021-00393-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 03/17/2021] [Indexed: 11/25/2022] Open
Abstract
Spray-dried extracts are prepared as powders or granules after solvent removal, which can be obtained in the presence or absence of pharmaceutical adjuvants. This work aimed to optimize the process of obtaining dried extracts of Peperomia pellucida L. (HBK) by spray drying. The characterization of the extract was performed by thermal analysis, specific surface area, particle size and high performance liquid chromatography (HPLC); then, capsules were developed for antimicrobial treatment, evaluating four bench lots by the determination of the angle of repose and time of flow, scanning electron microscopy, porosity and physicochemical quality control. There were no significant differences between the extracts obtained by spray drying at atomization temperatures of 140 °C, 160 °C and 180 °C, which was confirmed by thermal analysis. Specific surface area varied inversely with the mean particle size. Regarding the marker content by HPLC, no significant differences were found between the samples, although the flavonoid fraction was more stable at 160 °C. Bench lots (I to IV) were developed using the diluents Flowlac®, Starch® 1500, microcrystalline cellulose 250 and Cellactose® 80. Based on the results, the bench lot I, containing Flowlac®, was selected. The results of physicochemical quality control demonstrated that the selected formulation meets the pre-established parameters, and proving to be economically viable.
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Affiliation(s)
- Rosali Maria Ferreira da Silva
- Laboratório de Tecnologia dos Medicamentos, Pharmacy Department, Federal University of Pernambuco, Cidade Universitária, Av. Prof. Arthur de Sá, S/N, CEP: 50740-525, Recife, Pernambuco, Brazil.
| | - Thays Cristiane Barbosa Lucena Gomes
- Laboratório de Tecnologia dos Medicamentos, Pharmacy Department, Federal University of Pernambuco, Cidade Universitária, Av. Prof. Arthur de Sá, S/N, CEP: 50740-525, Recife, Pernambuco, Brazil
| | - Adriana Fernandes Campos
- Laboratory of Microscopy, Center for Strategic Technologies of the Northeast, Recife, PE, Brazil
| | - Williana Tôrres Vilela
- Laboratório de Tecnologia dos Medicamentos, Pharmacy Department, Federal University of Pernambuco, Cidade Universitária, Av. Prof. Arthur de Sá, S/N, CEP: 50740-525, Recife, Pernambuco, Brazil
| | - Pollyne Amorim Silva
- Laboratório de Tecnologia dos Medicamentos, Pharmacy Department, Federal University of Pernambuco, Cidade Universitária, Av. Prof. Arthur de Sá, S/N, CEP: 50740-525, Recife, Pernambuco, Brazil
| | - Victor de Albuquerque Wanderley Sales
- Laboratório de Tecnologia dos Medicamentos, Pharmacy Department, Federal University of Pernambuco, Cidade Universitária, Av. Prof. Arthur de Sá, S/N, CEP: 50740-525, Recife, Pernambuco, Brazil
| | | | - Keyla Emmanuelle Ramos da Silva
- Laboratório de Tecnologia dos Medicamentos, Pharmacy Department, Federal University of Pernambuco, Cidade Universitária, Av. Prof. Arthur de Sá, S/N, CEP: 50740-525, Recife, Pernambuco, Brazil
| | - Salvana Priscylla Manso Costa
- Laboratório de Tecnologia dos Medicamentos, Pharmacy Department, Federal University of Pernambuco, Cidade Universitária, Av. Prof. Arthur de Sá, S/N, CEP: 50740-525, Recife, Pernambuco, Brazil
| | - Fábio Santos de Souza
- Laboratory of Quality Control of Pharmaceutical Products, Federal University of Paraíba, João Pessoa, PB, Brazil
| | | | | | | | - Pedro José Rolim Neto
- Laboratório de Tecnologia dos Medicamentos, Pharmacy Department, Federal University of Pernambuco, Cidade Universitária, Av. Prof. Arthur de Sá, S/N, CEP: 50740-525, Recife, Pernambuco, Brazil
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148
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García Arteaga V, Kraus S, Schott M, Muranyi I, Schweiggert-Weisz U, Eisner P. Screening of Twelve Pea ( Pisum sativum L.) Cultivars and Their Isolates Focusing on the Protein Characterization, Functionality, and Sensory Profiles. Foods 2021; 10:foods10040758. [PMID: 33918162 PMCID: PMC8065828 DOI: 10.3390/foods10040758] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 12/11/2022] Open
Abstract
Pea protein concentrates and isolates are important raw materials for the production of plant-based food products. To select suitable peas (Pisum sativum L.) for protein extraction for further use as food ingredients, twelve different cultivars were subjected to isoelectric precipitation and spray drying. Both the dehulled pea flours and protein isolates were characterized regarding their chemical composition and the isolates were analyzed for their functional properties, sensory profiles, and molecular weight distributions. Orchestra, Florida, Dolores, and RLPY cultivars showed the highest protein yields. The electrophoretic profiles were similar, indicating the presence of all main pea allergens in all isolates. The colors of the isolates were significantly different regarding lightness (L*) and red-green (a*) components. The largest particle size was shown by the isolate from Florida cultivar, whereas the lowest was from the RLPY isolate. At pH 7, protein solubility ranged from 40% to 62% and the emulsifying capacity ranged from 600 to 835 mL g−1. The principal component analysis revealed similarities among certain pea cultivars regarding their physicochemical and functional properties. The sensory profile of the individual isolates was rather similar, with an exception of the pea-like and bitter attributes, which were significantly different among the isolates.
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Affiliation(s)
- Verónica García Arteaga
- Fraunhofer Institute for Process Engineering and Packaging IVV, 85354 Freising, Germany; (S.K.); (M.S.); (I.M.); (U.S.-W.); (P.E.)
- Center of Life and Food Sciences Weihenstephan, Technical University of Munich, 85354 Freising, Germany
- Correspondence: ; Tel.: +49-8161-491-465
| | - Sonja Kraus
- Fraunhofer Institute for Process Engineering and Packaging IVV, 85354 Freising, Germany; (S.K.); (M.S.); (I.M.); (U.S.-W.); (P.E.)
| | - Michael Schott
- Fraunhofer Institute for Process Engineering and Packaging IVV, 85354 Freising, Germany; (S.K.); (M.S.); (I.M.); (U.S.-W.); (P.E.)
| | - Isabel Muranyi
- Fraunhofer Institute for Process Engineering and Packaging IVV, 85354 Freising, Germany; (S.K.); (M.S.); (I.M.); (U.S.-W.); (P.E.)
| | - Ute Schweiggert-Weisz
- Fraunhofer Institute for Process Engineering and Packaging IVV, 85354 Freising, Germany; (S.K.); (M.S.); (I.M.); (U.S.-W.); (P.E.)
- Institute for Nutritional and Food Sciences, University of Bonn, 53012 Bonn, Germany
| | - Peter Eisner
- Fraunhofer Institute for Process Engineering and Packaging IVV, 85354 Freising, Germany; (S.K.); (M.S.); (I.M.); (U.S.-W.); (P.E.)
- ZIEL—Institute for Food & Health, Technical University of Munich, 85354 Freising, Germany
- School of Technology and Engineering, Steinbeis-Hochschule, 12489 Berlin, Germany
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149
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Wu G, Hui X, Gong X, Tran KN, Stipkovits L, Mohan MS, Brennan MA, Brennan CS. Functionalization of bovine whey proteins by dietary phenolics from molecular-level fabrications and mixture-level combinations. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.072] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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150
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Rial MS, Seremeta KP, Esteva MI, Búa J, Salomon CJ, Fichera LE. In vitro studies and preclinical evaluation of benznidazole microparticles in the acute Trypanosoma cruzi murine model. Parasitology 2021; 148:566-575. [PMID: 33298212 PMCID: PMC10950374 DOI: 10.1017/s0031182020002310] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/26/2020] [Accepted: 11/28/2020] [Indexed: 01/28/2023]
Abstract
Chagas disease is a serious parasitic infection caused by Trypanosoma cruzi. Unfortunately, the current chemotherapeutic tools are not enough to combat the infection. The aim of this study was to evaluate the trypanocidal activity of benznidazole-loaded microparticles during the acute phase of Chagas infection in an experimental murine model. Microparticles were prepared by spray-drying using copolymers derived from esters of acrylic and methacrylic acids as carriers. Dissolution efficiency of the formulations was up to 3.80-fold greater than that of raw benznidazole. Stability assay showed no significant difference (P > 0.05) in the loading capacity of microparticles for 3 years. Cell cultures showed no visible morphological changes or destabilization of the cell membrane nor haemolysis was observed in defibrinated human blood after microparticles treatment. Mice with acute lethal infection survived 100% after 30 days of treatment with benznidazole microparticles (50 mg kg-1 day-1). Furthermore, no detectable parasite load measured by quantitative polymerase chain reaction and lower levels of T. cruzi-specific antibodies by enzyme-linked immunosorbent assay were found in those mice. A significant decrease in the inflammation of heart tissue after treatment with these microparticles was observed, in comparison with the inflammatory damage observed in both infected mice treated with raw benznidazole and untreated infected mice. Therefore, these polymeric formulations are an attractive approach to treat Chagas disease.
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Affiliation(s)
- Marcela S. Rial
- Instituto Nacional de Parasitología Dr M. Fatala Chaben, ANLIS CG Malbrán, Ministerio de Salud, Av. Paseo Colón 568, Ciudad de Buenos Aires, Argentina
| | - Katia P. Seremeta
- Departamento de Ciencias Básicas y Aplicadas, Universidad Nacional del Chaco Austral, Cte. Fernández 755, 3700, Pcia. Roque Sáenz Peña, Chaco, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Mónica I. Esteva
- Instituto Nacional de Parasitología Dr M. Fatala Chaben, ANLIS CG Malbrán, Ministerio de Salud, Av. Paseo Colón 568, Ciudad de Buenos Aires, Argentina
| | - Jacqueline Búa
- Instituto Nacional de Parasitología Dr M. Fatala Chaben, ANLIS CG Malbrán, Ministerio de Salud, Av. Paseo Colón 568, Ciudad de Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Claudio J. Salomon
- Instituto de Química Rosario, Consejo Nacional de Investigaciones Científicas y Técnicas (IQUIR-CONICET), Suipacha 531, 2000, Rosario, Argentina
- Área Técnica Farmacéutica, Departamento de Farmacia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Laura E. Fichera
- Instituto Nacional de Parasitología Dr M. Fatala Chaben, ANLIS CG Malbrán, Ministerio de Salud, Av. Paseo Colón 568, Ciudad de Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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