|
1
|
Chen J, Ye Y, Yang Q, Fan Z, Shao Y, Wei X, Shi K, Dong J, Ma Y, Zhu J. Understanding the role of swirling flow in dry powder inhalers implications for design considerations and pulmonary delivery. J Control Release 2024; 373:410-425. [PMID: 39038545 DOI: 10.1016/j.jconrel.2024.07.034] [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: 04/22/2024] [Revised: 07/09/2024] [Accepted: 07/13/2024] [Indexed: 07/24/2024]
Abstract
Dry powder inhalers (DPIs) are widely employed to treat respiratory diseases, offering numerous advantages such as high dose capacity and stable formulations. However, they usually face challenges in achieving sufficient pulmonary drug delivery and minimizing excessive oropharyngeal deposition. This review provides a new viewpoint to address these challenges by focusing on the role of swirling flow, a crucial yet under-researched aspect that induces strong turbulence. In the review, we comprehensively discuss both key classic designs (tangential inlet, swirling chamber, grid mesh, and mouthpiece) and innovative designs in inhalers, exploring how the induced swirling flow initiates powder dispersion and promotes delivery efficiency. Valuable design considerations to effectively coordinate inhalers with formulations and patients are also provided. It is highlighted that the delicate manipulation of swirling flow is essential to maximize benefits. By emphasizing the role of swirling flow and its potential application, this review offers promising insights for advancing DPI technology and optimizing therapeutic outcomes in inhaled therapy.
Collapse
Affiliation(s)
- Jiale Chen
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, 211 Xingguang Road, Ningbo 315100, China
| | - Yuqing Ye
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, 211 Xingguang Road, Ningbo 315100, China; Particle Technology Research Centre, Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada; Suzhou Inhal Pharma Co., Ltd, 502-Bldf A SIP, 108 Yuxin Road, Suzhou 215125, China.
| | - Qingliang Yang
- College of Pharmaceutical Science, Research Institute of Pharmaceutical Particle Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Ziyi Fan
- Particle Technology Research Centre, Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Yuanyuan Shao
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, 211 Xingguang Road, Ningbo 315100, China
| | - Xiaoyang Wei
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, 211 Xingguang Road, Ningbo 315100, China
| | - Kaiqi Shi
- Suzhou Inhal Pharma Co., Ltd, 502-Bldf A SIP, 108 Yuxin Road, Suzhou 215125, China
| | - Jie Dong
- Suzhou Inhal Pharma Co., Ltd, 502-Bldf A SIP, 108 Yuxin Road, Suzhou 215125, China
| | - Ying Ma
- Particle Technology Research Centre, Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada; Suzhou Inhal Pharma Co., Ltd, 502-Bldf A SIP, 108 Yuxin Road, Suzhou 215125, China
| | - Jesse Zhu
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, 211 Xingguang Road, Ningbo 315100, China; Particle Technology Research Centre, Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada; Eastern Institute of Technology, Ningbo 315200, China.
| |
Collapse
|