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Le TMD, Nguyen VVL, Trinh TA, Pham NS, Lee DS, Huynh DP. Sulfonamide functionalized amino acid‐based
pH
‐ and temperature‐sensitive biodegradable injectable hydrogels: Synthesis, physicochemical characterization and in vivo degradation kinetics. J Appl Polym Sci 2021. [DOI: 10.1002/app.50488] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Thai Minh Duy Le
- School of Chemical Engineering and Theranostic Macromolecules Research Center Sungkyunkwan University Suwon South Korea
| | - Vu Viet Linh Nguyen
- Ho Chi Minh City University of Technology and Education Ho Chi Minh City Vietnam
| | - Thuy An Trinh
- Faculty of Materials Technology Ho Chi Minh University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam
| | - Ngoc Sinh Pham
- National Key Laboratory of Polymer and Composite Materials Ho Chi Minh University of Technology, Vietnam National University Ho Chi Minh City Vietnam
| | - Doo Sung Lee
- School of Chemical Engineering and Theranostic Macromolecules Research Center Sungkyunkwan University Suwon South Korea
| | - Dai Phu Huynh
- Faculty of Materials Technology Ho Chi Minh University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam
- Research Center for Polymeric Materials Ho Chi Minh University of Technology, Vietnam National University Ho Chi Minh City Vietnam
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Combination of Chondroitinase ABC, Glial Cell Line–Derived Neurotrophic Factor and Nogo A Antibody Delayed-Release Microspheres Promotes the Functional Recovery of Spinal Cord Injury. J Craniofac Surg 2013; 24:2153-7. [DOI: 10.1097/01.scs.0000436700.65891.3b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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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, SWITZERLAND) 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] [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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Chen AZ, Pu XM, Yin GF, Zhao C, Wang SB, Liu YG, Wang GY, Kang YQ. Study of lysozyme-polymer composite microparticles in supercritical CO2. J Appl Polym Sci 2012. [DOI: 10.1002/app.36492] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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