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Li Y, Shi J, Zhang X, Ji M, Ni Y, Han R, Li Z, Xiong Y, Tu J, He D, Sun C. Exploration of surface tension measurement methods for pharmaceutical excipients. Int J Pharm 2024; 655:123848. [PMID: 38316317 DOI: 10.1016/j.ijpharm.2024.123848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/31/2023] [Accepted: 01/21/2024] [Indexed: 02/07/2024]
Abstract
Surface tension is a crucial functional indicator for various classes of pharmaceutical excipients, as highlighted in both the Pharmacopoeia of the People's Republic of China (ChP) < 9601 Guidelines for Functionality-related Characteristics of Pharmaceutical Excipients > and the United States Pharmacopoeia (USP) < 1059 Excipient Performance >. However, there are few systematic studies on surface tension measurement of pharmaceutical excipients, resulting in a lack of stable parameter support in practical applications. In this study, we aim to fill this gap by exploring three different methods for measuring surface tension. These methods were carefully developed taking into account the actual measurement process and statistical theory, thus ensuring their applicability and reliability. Through comparative analyses, we have identified the most suitable measurement methods for different classes of pharmaceutical excipients. In addition, this paper describes the surface adsorption behavior of various excipients. Therefore, this study provides valuable guidance for the determination of surface tension and the study of surface adsorption behavior, which lays the foundation for further comprehensive research in the field of surface tension of pharmaceutical excipients and the improvement of general pharmacopoeia specification.
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Affiliation(s)
- Yuqi Li
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China; NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Jifeng Shi
- Beijing Kawin Technology Share-Holding Co., Ltd., No. 6 Rongjing East Street, BDA, Beijing 100176, China
| | - Xinyu Zhang
- Institute for Biological Product Control, National Institutes for Food and Drug Control, 31 Huatuo Street, Daxing District, Beijing 102629, China
| | - Meng Ji
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China; NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Yifei Ni
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China; NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Ruiying Han
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China; NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Zixuan Li
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China; NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Yerong Xiong
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China; School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Jiasheng Tu
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China; NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China.
| | - Dongsheng He
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China; NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China.
| | - Chunmeng Sun
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China; NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China.
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Islam MZ, Hossain SI, Deplazes E, Luo Z, Saha SC. The concentration-dependent effect of hydrocortisone on the structure of model lung surfactant monolayer by using an in silico approach. RSC Adv 2022; 12:33313-33328. [PMID: 36506480 PMCID: PMC9680622 DOI: 10.1039/d2ra05268g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/14/2022] [Indexed: 11/23/2022] Open
Abstract
Understanding the adsorption mechanism of corticosteroids in the lung surfactant requires the knowledge of corticosteroid molecular interactions with lung surfactant monolayer (LSM). We employed coarse-grained molecular dynamics simulation to explore the action of hydrocortisone on an LSM comprised of a phospholipid, cholesterol and surfactant protein. The structural and dynamical morphology of the lung surfactant monolayer at different surface tensions were investigated to assess the monolayer compressibility. The simulations were also conducted at the two extreme ends of breathing cycles: exhalation (0 mN m-1 surface tension) and inhalation (20 mN m-1 surface tension). The impact of surface tension and hydrocortisone concentration on the monolayer compressibility and stability are significant, resulting the monolayer expansion at higher surface tension. However, at low surface tension, the highly compressed monolayer induces monolayer instability in the presence of the drug due to the accumulation of surfactant protein and drug. The constant area per lipid simulation results demonstrate that the surface pressure-area isotherms show a decrease in area-per-lipid with increased drug concentration. The drug-induced expansion causes considerable instability in the monolayer after a specific drug concentration is attained at inhalation breathing condition, whereas, for exhalation breathing, the monolayer gets more compressed, causing the LSM to collapse. The monolayer collapse occurs for inhalation due to the higher drug concentration, whereas for exhalation due to the accumulation of surfactant proteins and drugs. The findings from this study will aid in enhancing the knowledge of molecular interactions of corticosteroid drugs with lung surfactants to treat respiratory diseases.
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Affiliation(s)
- Mohammad Zohurul Islam
- School of Mechanical and Mechatronic Engineering, University of Technology Sydney15 BroadwayUltimo 2007NSWAustralia
| | - Sheikh I. Hossain
- School of Life Sciences, University of Technology Sydney15 BroadwayUltimo 2007NSWAustralia
| | - E. Deplazes
- School of Mechanical and Mechatronic Engineering, University of Technology Sydney15 BroadwayUltimo 2007NSWAustralia,School of Life Sciences, University of Technology Sydney15 BroadwayUltimo 2007NSWAustralia
| | - Zhen Luo
- School of Mechanical and Mechatronic Engineering, University of Technology Sydney15 BroadwayUltimo 2007NSWAustralia
| | - Suvash C. Saha
- School of Mechanical and Mechatronic Engineering, University of Technology Sydney15 BroadwayUltimo 2007NSWAustralia
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Islam MZ, Hossain SI, Deplazes E, Saha SC. Concentration-dependent cortisone adsorption and interaction with model lung surfactant monolayer. MOLECULAR SIMULATION 2022. [DOI: 10.1080/08927022.2022.2113397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Mohammad Zohurul Islam
- School of Mechanical and Mechatronic Engineering, University of Technology Sydney, Ultimo, Australia
| | - Sheikh I. Hossain
- School of Life Sciences, University of Technology Sydney, Ultimo, Australia
| | - Evelyne Deplazes
- School of Life Sciences, University of Technology Sydney, Ultimo, Australia
| | - Suvash C. Saha
- School of Mechanical and Mechatronic Engineering, University of Technology Sydney, Ultimo, Australia
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Jiao F, Hossain SI, Sang J, Saha SC, Gu Y, Hughes ZE, Gandhi NS. Molecular basis of transport of surface functionalised gold nanoparticles to pulmonary surfactant. RSC Adv 2022; 12:18012-18021. [PMID: 35800307 PMCID: PMC9205331 DOI: 10.1039/d2ra01892f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/08/2022] [Indexed: 11/24/2022] Open
Abstract
Ligands like alkanethiol (e.g. dodecanethiol, hexadecanethiol, etc.) and polymers (e.g. poly(vinyl pyrrolidone), polyethylene glycol-thiol) capped to the gold nanoparticles (AuNPs) are widely used in biomedical field as drug carriers and as promising materials for probing and manipulating cellular processes. Ligand functionalised AuNPs are known to interact with the pulmonary surfactant (PS) monolayer once reaching the alveolar region. Therefore, it is crucial to understand the interaction between AuNPs and PS monolayers. Using coarse-grained molecular dynamics simulations, the effect of ligand density, and ligand length have been studied for two classes of ligands on a PS model monolayer consisting of DPPC, POPG, cholesterol and SP-B (mini-peptide). The ligands considered in this study are alkanethiol and polyethylene glycol (PEG) thiol as examples of hydrophobic and hydrophilic ligands, respectively. It was observed that the interaction between AuNPs and PS changes the biophysical properties of PS monolayer in compressed and expanded states. The AuNPs with hydrophilic ligand, can penetrate through the monolayer more easily, while the AuNPs with hydrophobic ligand are embedded in the monolayer and participated in deforming the monolayer structure particularly the monolayer in the compressed state. The bare AuNPs hinder to lower the monolayer surface tension value at the interface, however introducing ligand to the bare AuNPs or increasing the ligand length and density have an impact of lowering of monolayer surface tension to a minor extent. The simulation results guide the design of ligand protected NPs as drug carriers and can identify the nanoparticles' potential side effects on lung surfactant. Molecular-level observations of the behavior of ligand functionalised gold nanoparticles with a lipid monolayers.![]()
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Affiliation(s)
- Fengxuan Jiao
- School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Sheikh I. Hossain
- School of Life Science, University of Technology Sydney, 81 Broadway, Ultimo, NSW 2007, Australia
| | - Jianbing Sang
- School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Suvash C. Saha
- School of Mechanical and Mechatronic Engineering, University of Technology Sydney, 81 Broadway, Ultimo, NSW 2007, Australia
| | - YuanTong Gu
- School of Mechanical Medical & Process Engineering, Queensland University of Technology, 2 George Street, GPO Box 2434, Brisbane, QLD 4000, Australia
| | - Zak E. Hughes
- School of Chemistry and Biosciences, The University of Bradford, Bradford, BD7 1DP, UK
| | - Neha S. Gandhi
- Centre for Genomics and Personalised Health, School of Chemistry and Physics, Queensland University of Technology, 2 George Street, GPO Box 2434, Brisbane, QLD 4000, Australia
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