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Yang D, Wang L, Zhang L, Wang M, Li D, Liu N, Liu D, Zhao M, Yao X. Construction, characterization and bioactivity evaluation of curcumin nanocrystals with extremely high solubility and dispersion prepared by ultrasound-assisted method. ULTRASONICS SONOCHEMISTRY 2024; 104:106835. [PMID: 38460473 PMCID: PMC10940784 DOI: 10.1016/j.ultsonch.2024.106835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/27/2024] [Accepted: 02/27/2024] [Indexed: 03/11/2024]
Abstract
Curcumin (Cur) as a natural pigment and biological component, can be widely used in food and beverages. However, the water insolubility of Cur significantly limits its applications. In this study, we prepared a series of nanocrystals via ultrasound-assisted method to improve the solubility and availability of Cur. The results showed artemisia sphaerocephala krasch polysaccharide (ASKP), gum arabic (GA) and wheat protein (WP) were outstanding stabilizers for nanocryatals except traditional agent, poloxamer 188 (F68). The obtained curcumin nanocrystals (Cur-NC) displayed a rod-shaped, crystal- and nanosized structure, and extremely high loading capacity (more over 80 %, w/w). Compared with raw powder, Cur-NC greatly improved the water solubility and dispersibility, and the slow and complete release of Cur of Cur-NC also endowed them excellent antioxidant capacities even at 10 μg/mL. Importantly, as functional factor additive in beverages (e.g. water and emulsion), Cur-NC could increase the content of Cur to at least 600 μg/mL and retain a good stability. Overall, we provided an effective improvement method for the liposoluble active molecules (e.g. Cur) based on the nanocrystals, which not only tremendously enhanced its water solubility, but also strengthened its bioactivity. Notably, our findings broadened the application of water-insoluble compounds.
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Affiliation(s)
- Dan Yang
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China; Xi'an Key Laboratory of Antiviral and Antimicrobial Resistant Bacteria Therapeutics Research, Xi'an 710021, China
| | - Lili Wang
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Linxuan Zhang
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Mengqi Wang
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Dan Li
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Ning Liu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Dechun Liu
- Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Mouming Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510650, China
| | - Xiaolin Yao
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.
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Tanaka H, Ochii Y, Moroto Y, Hirata D, Ibaraki T, Ogawara KI. Nanocrystal Preparation of Poorly Water-Soluble Drugs with Low Metal Contamination Using Optimized Bead-Milling Technology. Pharmaceutics 2022; 14:pharmaceutics14122633. [PMID: 36559126 PMCID: PMC9783641 DOI: 10.3390/pharmaceutics14122633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/21/2022] [Accepted: 11/25/2022] [Indexed: 11/30/2022] Open
Abstract
Nanocrystal preparation using bead milling is an important technology to enhance the solubility of poorly water-soluble drugs. However, there are safety concerns regarding the metal contaminants generated during bead milling. We have previously reported optimized bead-milling parameters that could minimize metal contamination and demonstrated comparable performance to NanoCrystal®, a world-leading contamination-free technology. This study aimed to investigate the applicability of optimized milling parameters for preparing nanocrystals of several poorly water-soluble drugs exhibiting various physicochemical properties. Using our optimized bead-milling parameters, we found that all the tested drugs could be ground into nanosized particles within 360 min. Notably, fenofibrate, which has a low melting point, could be ground into nanosized particles owing to the low level of heat generated during bead milling. Additionally, the concentration of metal contaminants in all the drugs prepared using the optimized milling parameters were approximately ten to twentyfold lower than those prepared without the optimized parameters and were comparable to those prepared using polycarbonate beads, known to minimize metal contamination during bead milling. Our results provide insights into the development of drug nanocrystals with low metal contamination using bead milling.
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Affiliation(s)
- Hironori Tanaka
- Formulation R&D Laboratory, Research Division, Shionogi & Co., Ltd., Amagasaki 660-0813, Hyogo, Japan
- Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Kobe 658-8558, Hyogo, Japan
- Correspondence: ; Tel.: +81-6-6401-1227
| | - Yuya Ochii
- Formulation R&D Laboratory, Research Division, Shionogi & Co., Ltd., Amagasaki 660-0813, Hyogo, Japan
| | - Yasushi Moroto
- Formulation R&D Laboratory, Research Division, Shionogi & Co., Ltd., Amagasaki 660-0813, Hyogo, Japan
| | - Daisuke Hirata
- Hiroshima Metal & Machinery Co., Ltd., Hiroshima 737-0144, Hiroshima, Japan
| | - Tetsuharu Ibaraki
- Hiroshima Metal & Machinery Co., Ltd., Hiroshima 737-0144, Hiroshima, Japan
| | - Ken-ichi Ogawara
- Laboratory of Pharmaceutics, Kobe Pharmaceutical University, Kobe 658-8558, Hyogo, Japan
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Tanaka H, Ochii Y, Moroto Y, Ibaraki T, Ogawara KI. Development of Novel Bead Milling Technology with Less Metal Contamination by pH Optimization of the Suspension Medium. Chem Pharm Bull (Tokyo) 2021; 69:81-85. [PMID: 33390524 DOI: 10.1248/cpb.c20-00623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To develop novel contamination-less bead milling technology without impairing grinding efficiency, we investigated the effect of the formulation properties on the grinding efficiency and the metal contamination generated during the grinding process. Among the various formulations tested, the combination of polyvinylpyrrolidone and sodium dodecyl sulfate was found to be suitable for efficiently pulverizing phenytoin. However, this stabilization system included a relatively strong acid, which raised the concern of possible corrosion of the zirconia beads. An evaluation of the process clearly demonstrated that acidic pH promoted bead dissolution, suggesting that this could be suppressed by controlling the pH of the suspension. Among the various pH values tested, the metal contamination generated during the grinding process could be significantly reduced in the optimized pH range without significant differences in the particle size of the phenytoin suspension after pulverization. In addition, the contamination reduction by pH optimization in the presence of physical contact among the beads was approximately 10-times larger than that without bead contact, suggesting that pH optimization could suppress not only bead dissolution but also the wear caused by bead collisions during the grinding process. These findings show that pH optimization is a simple but effective approach to reducing metal contamination during the grinding process.
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Affiliation(s)
- Hironori Tanaka
- Formulation R&D Laboratory, CMC R&D Division, Shionogi & Co., Ltd.,Laboratory of Pharmaceutics, Kobe Pharmaceutical University
| | - Yuya Ochii
- Formulation R&D Laboratory, CMC R&D Division, Shionogi & Co., Ltd
| | - Yasushi Moroto
- Formulation R&D Laboratory, CMC R&D Division, Shionogi & Co., Ltd
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Borova S, Tokarev V, Stahlhut P, Luxenhofer R. Crosslinking of hydrophilic polymers using polyperoxides. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04738-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
AbstractHydrogels that can mimic mechanical properties and functions of biological tissue have attracted great interest in tissue engineering and biofabrication. In these fields, new materials and approaches to prepare hydrogels without using toxic starting materials or materials that decompose into toxic compounds remain to be sought after. Here, we report the crosslinking of commercial, unfunctionalized hydrophilic poly(2-ethyl-2-oxazoline) using peroxide copolymers in their melt. The influence of temperature, peroxide copolymer concentration, and duration of the crosslinking process has been investigated. The method allows to create hydrogels from unfunctionalized polymers in their melt and to control the mechanical properties of the resulting materials. The design of hydrogels with a suitable mechanical performance is of crucial importance in many existing and potential applications of soft materials, including medical applications.
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Uemoto Y, Kondo K, Niwa T. Cryo-milling with spherical crystalline cellulose beads: A contamination-free and safety conscious technology. Eur J Pharm Sci 2020; 143:105175. [PMID: 31809908 DOI: 10.1016/j.ejps.2019.105175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/16/2019] [Accepted: 12/03/2019] [Indexed: 11/30/2022]
Abstract
Crystalline cellulose is a common inactive pharmaceutical additive. If this material can also be used to construct beads for the wet milling of pharmaceutical compounds, it could possibly address issues related to wear and contamination associated with zirconia and polyethylene beads. In this study, the model drug phenytoin was milled with spherical crystalline cellulose (SCC) in liquid nitrogen. The particle size of the milled product was found to be comparable to that obtained using zirconia beads, verifying the feasibility of using SCC beads for this purpose. Using a design of experiment approach, the bead amount, agitation speed, and milling time were all determined to have a significant effect on the milled particle size, giving a D50 value as low as 0.3 μm. No breakage of the SCC beads was observed during the milling process in durability tests under conditions that will degrade spherical D-mannitol beads, showing that this material exhibits sufficient durability. In addition, the variation in elastic modulus between beads was minimal. Because SCC is commercially available and easy to handle, the present wet milling technique is considered to have potential applications to the manufacture of pharmaceuticals on an industrial scale, as it shows sufficient milling capability and durability.
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Affiliation(s)
- Yoshifumi Uemoto
- Faculty of Pharmacy, Meijo University,150 Yagotoyama, Tempaku-ku, Nagoya, 468-8503, Japan.
| | - Keita Kondo
- Faculty of Pharmacy, Meijo University,150 Yagotoyama, Tempaku-ku, Nagoya, 468-8503, Japan
| | - Toshiyuki Niwa
- Faculty of Pharmacy, Meijo University,150 Yagotoyama, Tempaku-ku, Nagoya, 468-8503, Japan
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