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Zhu Q, Gou D, Li L, Chan HK, Yang R. Numerical investigation of powder dispersion mechanisms in Turbuhaler and the contact electrification effect. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhao K, Guo T, Wang C, Zhou Y, Xiong T, Wu L, Li X, Mittal P, Shi S, Gref R, Zhang J. Glycoside scutellarin enhanced CD-MOF anchoring for laryngeal delivery. Acta Pharm Sin B 2020; 10:1709-1718. [PMID: 33088690 PMCID: PMC7564328 DOI: 10.1016/j.apsb.2020.04.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/03/2020] [Accepted: 04/16/2020] [Indexed: 12/14/2022] Open
Abstract
It is essential to develop new carriers for laryngeal drug delivery in light of the lack of therapy in laryngeal related diseases. When the inhalable micron-sized crystals of γ-cyclodextrin metal-organic framework (CD-MOF) was utilized as dry powder inhalers (DPIs) carrier with high fine particle fraction (FPF), it was found in this research that the encapsulation of a glycoside compound, namely, scutellarin (SCU) in CD-MOF could significantly enhance its laryngeal deposition. Firstly, SCU loading into CD-MOF was optimized by incubation. Then, a series of characterizations were carried out to elucidate the mechanisms of drug loading. Finally, the laryngeal deposition rate of CD-MOF was 57.72 ± 2.19% improved by SCU, about two times higher than that of CD-MOF, when it was determined by Next Generation Impactor (NGI) at 65 L/min. As a proof of concept, pharyngolaryngitis therapeutic agent dexamethasone (DEX) had improved laryngeal deposition after being co-encapsulated with SCU in CD-MOF. The molecular simulation demonstrated the configuration of SCU in CD-MOF and its contribution to the free energy of the SCU@CD-MOF, which defined the enhanced laryngeal anchoring. In conclusion, the glycosides-like SCU could effectively enhance the anchoring of CD-MOF particles to the larynx to facilitate the treatment of laryngeal diseases.
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Affiliation(s)
- Kena Zhao
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, China
- Center for Drug Delivery System, Shanghai Institute of Materia Medica, State Key Laboratory of Drug Research, Chinese Academy of Sciences, Shanghai 201203, China
| | - Tao Guo
- Center for Drug Delivery System, Shanghai Institute of Materia Medica, State Key Laboratory of Drug Research, Chinese Academy of Sciences, Shanghai 201203, China
| | - Caifen Wang
- Center for Drug Delivery System, Shanghai Institute of Materia Medica, State Key Laboratory of Drug Research, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yong Zhou
- Center for Drug Delivery System, Shanghai Institute of Materia Medica, State Key Laboratory of Drug Research, Chinese Academy of Sciences, Shanghai 201203, China
- Key Laboratory of Modern Chinese Medicine Preparations, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Ting Xiong
- Center for Drug Delivery System, Shanghai Institute of Materia Medica, State Key Laboratory of Drug Research, Chinese Academy of Sciences, Shanghai 201203, China
- Key Laboratory of Modern Chinese Medicine Preparations, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Li Wu
- Center for Drug Delivery System, Shanghai Institute of Materia Medica, State Key Laboratory of Drug Research, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xue Li
- Université Paris-Saclay, CNRS 8214, Institut des Sciences Moléculaires d'Orsay, Orsay 91405, France
| | - Priyanka Mittal
- Center for Drug Delivery System, Shanghai Institute of Materia Medica, State Key Laboratory of Drug Research, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Senlin Shi
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, China
- Corresponding authors. Tel./fax: +86 571 86613524 (Senlin Shi); +86 21 50805901 (Jiwen Zhang).
| | - Ruxandra Gref
- Université Paris-Saclay, CNRS 8214, Institut des Sciences Moléculaires d'Orsay, Orsay 91405, France
- Corresponding authors. Tel./fax: +86 571 86613524 (Senlin Shi); +86 21 50805901 (Jiwen Zhang).
| | - Jiwen Zhang
- Center for Drug Delivery System, Shanghai Institute of Materia Medica, State Key Laboratory of Drug Research, Chinese Academy of Sciences, Shanghai 201203, China
- NMPA Key Laboratory for Quality Research and Evaluation of Pharmaceutical Excipients, National Institutes for Food and Drug Control, Beijing 100050, China
- Key Laboratory of Modern Chinese Medicine Preparations, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Corresponding authors. Tel./fax: +86 571 86613524 (Senlin Shi); +86 21 50805901 (Jiwen Zhang).
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Abstract
Electrostatics continues to play an important role in pharmaceutical aerosols for inhalation. Despite its ubiquitous nature, the charging process is complex and not well understood. Nonetheless, significant advances in the past few years continue to improve understanding and lead to better control of electrostatics. The purpose of this critical review is to present an overview of the literature, with an emphasis on how electrostatic charge can be useful in improving pulmonary drug delivery.
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