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Liu Y, Cheng Y, Zhao C, Wang H, Zhao Y. Nanomotor-Derived Porous Biomedical Particles from Droplet Microfluidics. Adv Sci (Weinh) 2022; 9:e2104272. [PMID: 34816629 PMCID: PMC8811803 DOI: 10.1002/advs.202104272] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/27/2021] [Indexed: 05/14/2023]
Abstract
Porous particles have found widespread applications in therapeutic diagnosis, drug delivery, and tissue engineering due to their typical properties of large surface area, extensive loading capacity, and hierarchical microstructures. Attempts in this aspect are focusing on the development of effective methods to generate functional porous particles. Herein, a simple droplet microfluidics for continuously and directly generating porous particles by introducing bubble-propelled nanomotors into the system is presented. As the nanomotors can continuously generate gas bubbles in the unsolidified droplet templates, the desirable porous microparticles can be obtained after droplet polymerization. It is demonstrated that the generation process is highly controlled and the resultant microparticles show excellent porosity and monodispersity. In addition, the obtained porous microparticles can serve as microcarriers for 3D cell culture, because of their characteristic porous structures and favorable biocompatibility. Moreover, owing to the existence of oxygen in these microparticles, they can be used to improve the healing effects of wounds in the type I diabetes rat models. These remarkable features of the generation strategy and the porous microparticles point to their potential values in various biomedical fields.
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Affiliation(s)
- Yuxiao Liu
- Department of Rheumatology and ImmunologyInstitute of Translational MedicineThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210008China
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
| | - Yi Cheng
- Department of Rheumatology and ImmunologyInstitute of Translational MedicineThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210008China
- Department of Vascular SurgeryThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210008China
| | - Cheng Zhao
- Department of Rheumatology and ImmunologyInstitute of Translational MedicineThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210008China
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
| | - Huan Wang
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
| | - Yuanjin Zhao
- Department of Rheumatology and ImmunologyInstitute of Translational MedicineThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210008China
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
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Farzan M, Québatte G, Strittmatter K, Hilty FM, Schoelkopf J, Huwyler J, Puchkov M. Spontaneous In Situ Formation of Liposomes from Inert Porous Microparticles for Oral Drug Delivery. Pharmaceutics 2020; 12:pharmaceutics12080777. [PMID: 32824155 PMCID: PMC7465306 DOI: 10.3390/pharmaceutics12080777] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 12/24/2022] Open
Abstract
Despite the wide-spread use of liposomal drug delivery systems, application of these systems for oral purposes is limited due to their large-scale formulation and storage issues. Proliposomes are one of the formulation approaches for achieving solid powders that readily form liposomes upon hydration. In this work, we investigated a dry powder formulation of a model low-soluble drug with phospholipids loaded in porous functionalized calcium carbonate microparticles. We characterized the liposome formation under conditions that mimic the different gastrointestinal stages and studied the factors that influence the dissolution rate of the model drug. The liposomes that formed upon direct contact with the simulated gastric environment had a capacity to directly encapsulate 25% of the drug in situ. The emerged liposomes allowed complete dissolution of the drug within 15 min. We identified a negative correlation between the phospholipid content and the rate of water uptake. This correlation corroborated the results obtained for the rate of dissolution and liposome encapsulation efficiency. This approach allows for the development of solid proliposomal dosage formulations, which can be scaled up with regular processes.
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Affiliation(s)
- Maryam Farzan
- Division of Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, CH-4055 Basel, Switzerland; (M.F.); (G.Q.); (K.S.); (J.H.)
| | - Gabriela Québatte
- Division of Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, CH-4055 Basel, Switzerland; (M.F.); (G.Q.); (K.S.); (J.H.)
| | - Katrin Strittmatter
- Division of Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, CH-4055 Basel, Switzerland; (M.F.); (G.Q.); (K.S.); (J.H.)
| | - Florentine Marianne Hilty
- Fundamental Research, Omya International AG, Baslerstrasse 42, CH-4665 Oftringen, Switzerland; (F.M.H.); (J.S.)
| | - Joachim Schoelkopf
- Fundamental Research, Omya International AG, Baslerstrasse 42, CH-4665 Oftringen, Switzerland; (F.M.H.); (J.S.)
| | - Jörg Huwyler
- Division of Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, CH-4055 Basel, Switzerland; (M.F.); (G.Q.); (K.S.); (J.H.)
| | - Maxim Puchkov
- Division of Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, CH-4055 Basel, Switzerland; (M.F.); (G.Q.); (K.S.); (J.H.)
- Correspondence:
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Zhu Y, Wang M, Zhang Y, Zeng J, Omari-Siaw E, Yu J, Xu X. In Vitro Release and Bioavailability of Silybin from Micelle-Templated Porous Calcium Phosphate Microparticles. AAPS PharmSciTech 2016; 17:1232-9. [PMID: 26669888 DOI: 10.1208/s12249-015-0460-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 11/30/2015] [Indexed: 02/08/2023] Open
Abstract
Developing a promising carrier for the delivery of poorly water-soluble drugs, such as silybin, to improve oral absorption has become a very worthy of consideration. The goal of this study was to prepare a novel porous calcium phosphate microparticle using povidone-mixed micelles as template while evaluating its in vitro and in vivo properties with silybin as a model drug. The particle characterization, in vitro drug release behavior, and pharmacokinetic parameters of the prepared silybin-loaded calcium phosphate microparticle were investigated. The mean particle size was found to be 3.54 ± 0.32 μm with a rough surface porous structure. Additionally, the silybin-loaded calcium phosphate microparticle compared with the free silybin showed a prolonged 72-h release in vitro and a higher C max (418.5 ± 23.7 ng mL(-1)) with 167.5% oral relative bioavailability. A level A in vitro-in vivo correlation (IVIVC), established for the first time, demonstrated an excellent IVIVC of the formulated silybin in oral administration. In conclusion, this povidone-mixed micelle-based microparticle was successfully prepared to enhance the oral bioavailability of silybin. Therefore, application of this novel porous calcium phosphate microparticle holds a significant potential for the development of poorly water-soluble drugs.
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Kang YQ, Zhao C, Chen AZ, Wang SB, Liu YG, Wu WG, Su XQ. Study of Lysozyme-Loaded Poly-L-Lactide (PLLA) Porous Microparticles in a Compressed CO₂ Antisolvent Process. Materials (Basel) 2013; 6:3571-3583. [PMID: 28811453 PMCID: PMC5521323 DOI: 10.3390/ma6083571] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Revised: 07/07/2013] [Accepted: 08/14/2013] [Indexed: 11/16/2022]
Abstract
Lysozyme (LSZ)-loaded poly-L-lactide (PLLA) porous microparticles (PMs) were successfully prepared by a compressed CO₂ antisolvent process in combination with a water-in-oil emulsion process using LSZ as a drug model and ammonium bicarbonate as a porogen. The effects of different drug loads (5.0%, 7.5% and 10.0%) on the surface morphology, particle size, porosity, tapped density and drug release profile of the harvested PMs were investigated. The results show that an increase in the amount of LSZ added led to an increase in drug load (DL) but a decrease in encapsulation efficiency. The resulting LSZ-loaded PLLA PMs (LSZ-PLLA PMs) exhibited a porous and uneven morphology, with a density less than 0.1 g·cm-3, a geometric mean diameter of 16.9-18.8 μm, an aerodynamic diameter less than 2.8 μm, a fine particle fraction (FPF) of 59.2%-66.8%, and a porosity of 78.2%-86.3%. According to the results of differential scanning calorimetry, the addition of LSZ improved the thermal stability of PLLA. The Fourier transform infrared spectroscopy analysis and circular dichroism spectroscopy measurement reveal that no significant changes occurred in the molecular structures of LSZ during the fabrication process, which was further confirmed by the evaluation of enzyme activity of LSZ. It is demonstrated that the emulsion-combined precipitation with compressed antisolvent (PCA) process could be a promising technology to develop biomacromolecular drug-loaded inhalable carrier for pulmonary drug delivery.
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Affiliation(s)
- Yong-Qiang Kang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China.
| | - Chen Zhao
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China.
| | - Ai-Zheng Chen
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China.
- Institute of Pharmaceutical Engineering, Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China.
| | - Shi-Bin Wang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China.
- Institute of Pharmaceutical Engineering, Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China.
| | - Yuan-Gang Liu
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China.
- Institute of Pharmaceutical Engineering, Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China.
| | - Wen-Guo Wu
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China.
- Institute of Pharmaceutical Engineering, Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China.
| | - Xiao-Qian Su
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China.
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