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Cheng K, Zhao K, Zhang R, Guo J. Progress on control of harmful algae by sustained-release technology of allelochemical: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170364. [PMID: 38307275 DOI: 10.1016/j.scitotenv.2024.170364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/16/2024] [Accepted: 01/20/2024] [Indexed: 02/04/2024]
Abstract
The outbreak of harmful algae blooms caused by water eutrophication seriously jeopardizes the aquatic ecological environment and human health. Therefore, algae control technology has attracted widespread attention between environmental scholars. Allelochemical sustained-release technology which releases the active ingredient to the target medium at a certain rate within the effective time, so that the system maintains a certain concentration, thus prolonging its influence on the target organism. Allelochemical sustained-release technology has become the focus of research due to the characteristics of high efficiency, safety, low-cost, environment friendly and no secondary pollution. This paper reviews the characteristics of allelochemical substances and the status quo of plant extraction, explains the detailed classification of allelochemical sustained-release microspheres (ASRMs) and the application of algae inhibition, summarizes the preparation method of ASRMs, elaborates on the mechanism of algae inhibition of sustained-release technology from the perspective of photosynthesis, cellular enzyme activity, algae cell structure, gene expression, and target site action. Focuses on the summary of the factors influencing the effect of algae inhibition of ASRMs, including particle size of sustained-release microspheres, selection of carrier materials, and the growth stage of algae. The future direction and prospect of algae inhibition by allelochemical sustained-release technology were prospected to provide the scientific basis for water ecological restoration.
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Affiliation(s)
- Kai Cheng
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, School of Water and Environment, Chang'an University, Xi'an 710054, PR China
| | - Kai Zhao
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, School of Water and Environment, Chang'an University, Xi'an 710054, PR China
| | - Rong Zhang
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, School of Water and Environment, Chang'an University, Xi'an 710054, PR China
| | - Jifeng Guo
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, School of Water and Environment, Chang'an University, Xi'an 710054, PR China.
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2
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Song Z, Chen R, Huang Z, Gong Y, Zhao H. Preparation and Characterization of Perfluoropolyether-Silane@Ethye Cellulose Polymeric Microcapsules. Polymers (Basel) 2024; 16:169. [PMID: 38256968 PMCID: PMC10818722 DOI: 10.3390/polym16020169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 12/29/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
A novel polymeric microcapsule was designed and synthesized using perfluoropolyether silane (PFPE-silane) as a superhydrophobic core material and ethyl cellulose (EC) as a shell material. The effects of the stirring rate and the core-to-shell ratio on the synthesized microcapsules were investigated. The physicochemical properties of the polymeric microcapsules were evaluated using scanning electron microscopy, fourier transform infrared spectroscopy, thermogravimetric analysis, laser particle size analysis, and wettability analysis. The results showed that when the stirring rate was 650 rpm and the core-to-shell ratio was 1:1, well-distributed and uniformly dispersed microcapsules could be obtained. The results also indicated that the prepared polymeric microcapsules were spherical particles with micropores on the surface, and they had an average particle size of 165.71 μm. The EC shells could effectively prevent the thermal decomposition of PFPE-silane during cement hydration, and the PFPE-silane also exhibited excellent hydrophobicity. The specially designed structure of this polymeric microcapsule suggests its potential for enhancing the corrosion resistance of reinforced concrete structures.
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Affiliation(s)
- Zijian Song
- College of Civil and Transportation Engineering, Hohai University, 1# Xikang Road, Nanjing 210098, China
- College of Mechanics and Materials, Hohai University, 8# West Focheng Road, Nanjing 210098, China
| | - Ruijie Chen
- College of Mechanics and Materials, Hohai University, 8# West Focheng Road, Nanjing 210098, China
| | - Zilang Huang
- College of Mechanics and Materials, Hohai University, 8# West Focheng Road, Nanjing 210098, China
| | - Yucheng Gong
- College of Civil and Transportation Engineering, Hohai University, 1# Xikang Road, Nanjing 210098, China
| | - Haitao Zhao
- College of Civil and Transportation Engineering, Hohai University, 1# Xikang Road, Nanjing 210098, China
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Matsumoto A, Murakami M. Harmless and ecologically acceptable fabrication of long-acting injectable microspheres. Drug Discov Ther 2023:2023.01008. [PMID: 37245983 DOI: 10.5582/ddt.2023.01008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The use of harmful solvents during the preparation of pharmaceutical formulations is restricted to preserve environment and ensure safety of industrial operations. However, harmful solvents must be used to produce certain formulations. For instance, methylene chloride has been used in the fabrication of polylactic acid (PLA) and poly(lactic-co-glycolic) acid (PLGA) microspheres. This review highlights the latest advances in the strategy of PLA or PLGA microsphere production from non-halogenated solvents and describes advantages and limitations of these methods. The study also discusses the development of dry fabrication techniques for microsphere fabrication and the positioning of conventional and dry fabrication in the containment concept for workers' safety.
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Affiliation(s)
- Akihiro Matsumoto
- Laboratory of Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Masahiro Murakami
- Laboratory of Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
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4
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Sun Y, Fang Y, Shang F, Zhang J, Liu W, Shen H, Guo B. Enhancing the tribological performance of Cu-WS2 composites with Ag-shell/Cu-core structure. POWDER TECHNOL 2023. [DOI: 10.1016/j.powtec.2023.118453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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5
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Wu J, Ding J, Xiao B, Chen D, Huang D, Ma P, Xiong Z. A facile strategy for controlling porous PLGA microspheres via o/w emulsion method. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03369-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Otte A, Turasan H, Park K. Implications of particle size on the respective solid-state properties of naltrexone in PLGA microparticles. Int J Pharm 2022; 626:122170. [PMID: 36070842 PMCID: PMC9529846 DOI: 10.1016/j.ijpharm.2022.122170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/15/2022] [Accepted: 08/30/2022] [Indexed: 11/19/2022]
Abstract
A thorough understanding of the complexities in formulating and manufacturing polymeric microspheres is required for new and generic drug applications. Specifically, for an ANDA application for polymeric microsphere-based products, the applicant must meet Q1 (qualitative) and Q2 (quantitative) sameness, and in some cases, Q3 (e.g., microstructural) sameness. Herein, we report the naltrexone crystallinity in a PLGA microparticle system prepared from a dichloromethane-benzyl alcohol solvent system results in a crystallinity dependence as a function of microparticle size from the same batch - illustrating intrabatch microstructural variability. As the particle size increases, the crystallinity increases, with additional polymorphic forms more readily noted at the large particle sizes. Furthermore, during dissolution, a polymorphic transition and/or crystallization occurs at larger size fractions. This study highlights the importance of controlling the manufacturing parameters during microparticle formation, specifically solvent extraction and particle size control. Furthermore, with the approval of generic microparticles formulations on the horizon, this study highlights the importance of Q3, the same components in the same concentration with the same arrangement of matter, whereby microparticles can have varying microstructural properties across particle sizes from the same batch.
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Affiliation(s)
- Andrew Otte
- Purdue University, Weldon School of Biomedical Engineering, West Lafayette, IN 47907, USA.
| | - Hazal Turasan
- Purdue University, Weldon School of Biomedical Engineering, West Lafayette, IN 47907, USA
| | - Kinam Park
- Purdue University, Weldon School of Biomedical Engineering, West Lafayette, IN 47907, USA; Purdue University, College of Pharmacy, West Lafayette, IN 47907, USA; Akina, Inc., West Lafayette, IN 47906, USA
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van der Kooij RS, Steendam R, Frijlink HW, Hinrichs WLJ. An overview of the production methods for core-shell microspheres for parenteral controlled drug delivery. Eur J Pharm Biopharm 2021; 170:24-42. [PMID: 34861359 DOI: 10.1016/j.ejpb.2021.11.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 10/19/2021] [Accepted: 11/26/2021] [Indexed: 01/25/2023]
Abstract
Core-shell microspheres hold great promise as a drug delivery system because they offer several benefits over monolithic microspheres in terms of release kinetics, for instance a reduced initial burst release, the possibility of delayed (pulsatile) release, and the possibility of dual-drug release. Also, the encapsulation efficiency can significantly be improved. Various methods have proven to be successful in producing these core-shell microspheres, both the conventional bulk emulsion solvent evaporation method and methods in which the microspheres are produced drop by drop. The latter have become increasingly popular because they provide improved control over the particle characteristics. This review assesses various production methods for core-shell microspheres and summarizes the characteristics of formulations prepared by the different methods, with a focus on their release kinetics.
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Affiliation(s)
- Renée S van der Kooij
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Rob Steendam
- InnoCore Pharmaceuticals, L.J. Zielstraweg 1, 9713 GX Groningen, The Netherlands
| | - Henderik W Frijlink
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Wouter L J Hinrichs
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
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Hua Y, Su Y, Zhang H, Liu N, Wang Z, Gao X, Gao J, Zheng A. Poly(lactic-co-glycolic acid) microsphere production based on quality by design: a review. Drug Deliv 2021; 28:1342-1355. [PMID: 34180769 PMCID: PMC8245074 DOI: 10.1080/10717544.2021.1943056] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Poly(lactic-co-glycolic acid) (PLGA) has garnered increasing attention as a candidate drug delivery polymer owing to its favorable properties, including its excellent biocompatibility, biodegradability, non-toxicity, non-immunogenicity, and mechanical strength. PLAG are specifically used as microspheres for the sustained/controlled and targeted delivery of hydrophilic or hydrophobic drugs, as well as biological therapeutic macromolecules, including peptide and protein drugs. PLGAs with different molecular weights, lactic acid (LA)/glycolic acid (GA) ratios, and end groups exhibit unique release characteristics, which is beneficial for obtaining diverse therapeutic effects. This review aims to analyze the composition of PLGA microspheres, and understand the manufacturing process involved in their production, from a quality by design perspective. Additionally, the key factors affecting PLGA microsphere development are explored as well as the principles involved in the synthesis and degradation of PLGA and its interaction with active drugs. Further, the effects elicited by microcosmic conditions on PLGA macroscopic properties, are analyzed. These conditions include variations in the organic phase (organic solvent, PLGA, and drug concentration), continuous phase (emulsifying ability), emulsifying stage (organic phase and continuous phase interaction, homogenization parameters), and solidification process (relationship between solvent volatilization rate and curing conditions). The challenges in achieving consistency between batches during manufacturing are addressed, and continuous production is discussed as a potential solution. Finally, potential critical quality attributes are introduced, which may facilitate the optimization of process parameters.
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Affiliation(s)
- Yabing Hua
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Yuhuai Su
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Hui Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Nan Liu
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Zengming Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Xiang Gao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Jing Gao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Aiping Zheng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
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Mahdavi Z, Rezvani H, Keshavarz Moraveji M. Core–shell nanoparticles used in drug delivery-microfluidics: a review. RSC Adv 2020; 10:18280-18295. [PMID: 35517190 PMCID: PMC9053716 DOI: 10.1039/d0ra01032d] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 04/19/2020] [Indexed: 11/26/2022] Open
Abstract
Developments in the fields of lab-on-a-chip and microfluidic technology have benefited nanomaterial production processes due to fluid miniaturization. The ability to acquire, manage, create, and modify structures on a nanoscale is of great interest in scientific and technological fields. Recently, more attention has been paid to the production of core–shell nanomaterials because of their use in various fields, such as drug delivery. Heterostructured nanomaterials have more reliable performance than the individual core or shell materials. Nanoparticle synthesis is a complex process; therefore, various techniques exist for the production of different types of nanoparticles. Among these techniques, microfluidic methods are unique and reliable routes, which can be used to produce nanoparticles for drug delivery applications. Developments in the fields of lab-on-a-chip and microfluidic technology have benefited nanomaterial production processes due to fluid miniaturization.![]()
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Affiliation(s)
- Zahra Mahdavi
- Department of Chemical Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
| | - Hamed Rezvani
- Department of Petroleum Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
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Design and In Vivo Pharmacokinetic Evaluation of Triamcinolone Acetonide Microcrystals-Loaded PLGA Microsphere for Increased Drug Retention in Knees after Intra-Articular Injection. Pharmaceutics 2019; 11:pharmaceutics11080419. [PMID: 31430878 PMCID: PMC6722509 DOI: 10.3390/pharmaceutics11080419] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/09/2019] [Accepted: 08/12/2019] [Indexed: 12/21/2022] Open
Abstract
A novel polymeric microsphere (MS) containing micronized triamcinolone acetonide (TA) in a crystalline state was structured to provide extended drug retention in joints after intra-articular (IA) injection. Microcrystals with a median diameter of 1.7 μm were prepared by ultra-sonication method, and incorporated into poly(lactic-co-glycolic acid)/poly(lactic acid) (PLGA/PLA) MSs using spray-drying technique. Cross-sectional observation and X-ray diffraction analysis showed that drug microcrystals were evenly embedded in the MSs, with a distinctive crystalline nature of TA. In vitro drug release from the novel MSs was markedly decelerated compared to those from the marketed crystalline suspension (Triam inj.®), or even 7.2 μm-sized TA crystals-loaded MSs. The novel system offered prolonged drug retention in rat joints, providing quantifiable TA remains over 28 days. Whereas, over 95% of IA TA was removed from joints within seven days, after injection of the marketed product. Systemic exposure of the steroidal compound was drastically decreased with the MSs, with <50% systemic exposure compared to that with the marketed product. The novel MS was physicochemically stable, with no changes in drug crystallinity and release profile over 12 months. Therefore, the TA microcrystals-loaded MS is expected to be beneficial in patients especially with osteoarthritis, with reduced IA dosing frequency.
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Khan RU, Wang L, Yu H, Abdin ZU, Haq F, Haroon M, Naveed KUR, Elshaarani T, Fahad S, Ren S, Wang J. Synthesis of polyorganophosphazenes and fabrication of their blend microspheres and micro/nanofibers as drug delivery systems. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1581203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Rizwan Ullah Khan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, P.R. China
| | - Li Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, P.R. China
| | - Haojie Yu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, P.R. China
| | - Zain-Ul- Abdin
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, P.R. China
| | - Fazal Haq
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, P.R. China
| | - Muhammad Haroon
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, P.R. China
| | - Kaleem-Ur-Rehman Naveed
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, P.R. China
| | - Tarig Elshaarani
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, P.R. China
| | - Shah Fahad
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, P.R. China
| | - Sicong Ren
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, P.R. China
| | - Jun Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, P.R. China
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Yuan X, Zhang M, Wang Y, Zhao H, Sun D. Using co-axial electrospray deposition to eliminate burst release of simvastatin from microparticles and to enhance induced osteogenesis. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2018; 30:355-375. [PMID: 30572791 DOI: 10.1080/09205063.2018.1559978] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Microparticles (MPs) exhibit fast dissolution, characterized by a burst drug release pattern. In the present work, we prepared core-shell MPs of simvastatin (SIM) and zein with chitosan (CS) and nano-hydroxyapatite (nHA) as a drug carrier using the coaxial electrospray deposition method. The morphology, formation and in vitro osteogenic differentiation of these MPs were studied. The synthetic MPs have a diameter of about 1 μm and they are composed of non-toxic natural materials. They provide an effective way to enable long-term sustained-release activity, which is controlled by their double layer structures. The CS-nHA/zein-SIM MPs presented a low initial burst release (approximately 35-47%) within the first 24 h of application followed by the sustained release for at least 4 weeks. In vitro cell culture experiments were performed and the results revealed that the CS-nHA/zein-SIM core-shell MPs were beneficial to the adhesion, proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs). The CS-nHA/zein-SIM MPs with a low SIM concentration were beneficial to cell proliferation and promotion of osteogenic differentiation.
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Affiliation(s)
- Xiaowei Yuan
- a Norman Bethune First Hospital, Jilin University , Changchun , China
| | - Mei Zhang
- b Alan G. MacDiarmid Laboratory , College of Chemistry, Jilin University , Changchun , China
| | - Yilong Wang
- b Alan G. MacDiarmid Laboratory , College of Chemistry, Jilin University , Changchun , China
| | - He Zhao
- b Alan G. MacDiarmid Laboratory , College of Chemistry, Jilin University , Changchun , China
| | - Dahui Sun
- a Norman Bethune First Hospital, Jilin University , Changchun , China
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Core-shell PVA/gelatin nanofibrous scaffolds using co-solvent, aqueous electrospinning: Toward a green approach. J Appl Polym Sci 2018. [DOI: 10.1002/app.46582] [Citation(s) in RCA: 5] [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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Bai M, He J, Kang L, Nie J, Yin R. Regulated basal and bolus insulin release from glucose-responsive core-shell microspheres based on concanavalin A-sugar affinity. Int J Biol Macromol 2018. [PMID: 29524488 DOI: 10.1016/j.ijbiomac.2018.03.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Individual insulin therapy considering the heterogeneity of insulin resistance between patients may bring more benefits than conventional therapy. Therefore, in glucose-responsive insulin delivery systems, more attention should be paid on further regulation of insulin release to meet individual requirements. Our study shows the feasibility of using a photo-crosslinkable shell layer to regulate basal and bolus insulin release from glucose-responsive Con A-polysaccharides network. Core-shell microspheres were fabricated through a two-step high-speed shear-emulsification method. The morphology was observed by SEM and TEM, and the core-shell structure was confirmed by the differences in chemical composition between core-shell and single-layer microspheres obtained from XPS and IR analysis. In vitro insulin release test revealed that the core-shell microspheres with or without light-irradiation could maintain corresponding bolus and basal insulin release in response to different glucose concentration but enable much lower burst release compared with single-layer microspheres without shell. Meanwhile, insulin release rate and amount could be further decreased upon light-irradiation owing to the photo-induced cycloaddition of cinnamate pendant groups of the shell material. The released insulin was proved to remain active according to fluorescence and circular dichroism analysis. The HDF cell viability assessment suggested that the core-shell microspheres possessed no in vitro cytotoxicity.
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Affiliation(s)
- Meirong Bai
- State Key Laboratory of Chemical Resource Engineering & Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, PR China
| | - Jing He
- Complex and Intelligent Systems Research Center, East China University of Science and Technology, Shanghai, PR China
| | - Liangfa Kang
- Changzhou Institute of Advanced Materials, Beijing University of Chemical Technology, Changzhou, Jiangsu, PR China
| | - Jun Nie
- State Key Laboratory of Chemical Resource Engineering & Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, PR China; Changzhou Institute of Advanced Materials, Beijing University of Chemical Technology, Changzhou, Jiangsu, PR China
| | - Ruixue Yin
- Complex and Intelligent Systems Research Center, East China University of Science and Technology, Shanghai, PR China; Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, Canada.
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Efficient simultaneous removal of U(VI) and Cu(II) from aqueous solution using core–shell nZVI@SA/CMC-Ca beads. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5662-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Li H, Li S, Li Z, Zhu Y, Wang H. Polysulfone/SiO 2 Hybrid Shell Microcapsules Synthesized by the Combination of Pickering Emulsification and the Solvent Evaporation Technique and Their Application in Self-Lubricating Composites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:14149-14155. [PMID: 29151348 DOI: 10.1021/acs.langmuir.7b03370] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Lubricant oil-filled polysulfone/SiO2 (PSF/SiO2) hybrid shell microcapsules are prepared by the combination of Pickering emulsification and the solvent evaporation technique. Silica particles are used as stabilizers. The structure and properties of the microcapsules are influenced by the silica particle concentration, agitation speed, and encapsulation temperature. The formation of PSF/SiO2 hybrid microcapsules is confirmed by a scanning electron microscope, Fourier transform infrared spectroscopy, and thermal gravimetric analysis. The resulting microcapsules prepared at the optimum synthetic parameters show a spherical, ideal structure with a rough outer surface, mean diameter of 5.0 ± 0.6 μm, shell thickness of 0.83 μm, core content of 50.5 wt %, and excellent thermal stability with an initial evaporating temperature of 250 °C. The synthesized microcapsules are embedded into epoxy for application in self-lubricating composites. Investigated by friction and wear tests, the tribological properties of the self-lubricating microcapsule-incorporated epoxy composites attain a significant improvement.
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Affiliation(s)
- Haiyan Li
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University , No. 99, Xuefu Street, Hi-Tech Industrial Development Zone, Daqing 163318, Heilongjiang, PR China
| | - Shuang Li
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University , No. 99, Xuefu Street, Hi-Tech Industrial Development Zone, Daqing 163318, Heilongjiang, PR China
| | - Zhike Li
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University , No. 99, Xuefu Street, Hi-Tech Industrial Development Zone, Daqing 163318, Heilongjiang, PR China
| | - Yanji Zhu
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University , No. 99, Xuefu Street, Hi-Tech Industrial Development Zone, Daqing 163318, Heilongjiang, PR China
| | - Huaiyuan Wang
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University , No. 99, Xuefu Street, Hi-Tech Industrial Development Zone, Daqing 163318, Heilongjiang, PR China
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Ansary RH, Rahman MM, Mohamad N, Arrif TM, Latif AZA, Katas H, Nik WSBW, Awang MB. Controlled Release of Lysozyme from Double-Walled Poly(Lactide-Co-Glycolide) (PLGA) Microspheres. Polymers (Basel) 2017; 9:E485. [PMID: 30965787 PMCID: PMC6418743 DOI: 10.3390/polym9100485] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 09/28/2017] [Accepted: 09/28/2017] [Indexed: 12/11/2022] Open
Abstract
Double-walled microspheres based on poly(lactide-co-glycolide) (PLGA) are potential delivery systems for reducing a very high initial burst release of encapsulated protein and peptide drugs. In this study, double-walled microspheres made of glucose core, hydroxyl-terminated poly(lactide-co-glycolide) (Glu-PLGA), and carboxyl-terminated PLGA were fabricated using a modified water-in-oil-in-oil-in-water (w1/o/o/w2) emulsion solvent evaporation technique for the controlled release of a model protein, lysozyme. Microspheres size, morphology, encapsulation efficiency, lysozyme in vitro release profiles, bioactivity, and structural integrity, were evaluated. Scanning electron microscopy (SEM) images revealed that double-walled microspheres comprising of Glu-PLGA and PLGA with a mass ratio of 1:1 have a spherical shape and smooth surfaces. A statistically significant increase in the encapsulation efficiency (82.52% ± 3.28%) was achieved when 1% (w/v) polyvinyl alcohol (PVA) and 2.5% (w/v) trehalose were incorporated in the internal and external aqueous phase, respectively, during emulsification. Double-walled microspheres prepared together with excipients (PVA and trehalose) showed a better control release of lysozyme. The released lysozyme was fully bioactive, and its structural integrity was slightly affected during microspheres fabrication and in vitro release studies. Therefore, double-walled microspheres made of Glu-PLGA and PLGA together with excipients (PVA and trehalose) provide a controlled and sustained release for lysozyme.
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Affiliation(s)
- Rezaul H Ansary
- Faculty of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Malaysia.
- Department of Chemistry, University of Rajshahi, Rajshahi 6205, Bangladesh.
| | - Mokhlesur M Rahman
- Faculty of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Malaysia.
- Institute for Community Development & Quality of Life (i-CODE), Universiti Sultan Zainal Abidin, Kuala Nerus 21300, Terengganu, Malaysia.
| | - Nasir Mohamad
- Institute for Community Development & Quality of Life (i-CODE), Universiti Sultan Zainal Abidin, Kuala Nerus 21300, Terengganu, Malaysia.
| | - Tengku M Arrif
- Institute for Community Development & Quality of Life (i-CODE), Universiti Sultan Zainal Abidin, Kuala Nerus 21300, Terengganu, Malaysia.
| | - Ahmad Zubaidi A Latif
- Faculty of Medicine, Universiti Sultan Zainal Abidin, Kuala Nerus 21300, Terengganu, Malaysia.
| | - Haliza Katas
- Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
| | - Wan Sani B Wan Nik
- School of Ocean Engineering, Universiti Malaysia Terengganu, 21300 Kuala Nerus, Terengganu, Malaysia.
| | - Mohamed B Awang
- Faculty of Pharmacy, Cyberjaya University College of Medical Sciences, Cyberjaya 63000, Malaysia.
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Andhariya JV, Shen J, Choi S, Wang Y, Zou Y, Burgess DJ. Development of in vitro-in vivo correlation of parenteral naltrexone loaded polymeric microspheres. J Control Release 2017; 255:27-35. [DOI: 10.1016/j.jconrel.2017.03.396] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 03/26/2017] [Accepted: 03/30/2017] [Indexed: 12/22/2022]
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19
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Chaurasia S, Mounika K, Bakshi V, Prasad V. 3-month parenteral PLGA microsphere formulations of risperidone: Fabrication, characterization and neuropharmacological assessments. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:1496-1505. [DOI: 10.1016/j.msec.2017.03.065] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 12/23/2016] [Accepted: 03/09/2017] [Indexed: 12/16/2022]
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20
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Yao S, Liu H, Yu S, Li Y, Wang X, Wang L. Drug-nanoencapsulated PLGA microspheres prepared by emulsion electrospray with controlled release behavior. Regen Biomater 2016; 3:309-317. [PMID: 27699061 PMCID: PMC5043157 DOI: 10.1093/rb/rbw033] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 08/19/2016] [Accepted: 08/20/2016] [Indexed: 11/14/2022] Open
Abstract
The development of modern therapeutics has raised the requirement for controlled drug delivery system which is able to efficiently encapsulate bioactive agents and achieve their release at a desired rate satisfying the need of the practical system. In this study, two kind of aqueous model drugs with different molecule weight, Congo red and albumin from bovine serum (BSA) were nano-encapsulated in poly (dl-lactic-co-glycolic acid) (PLGA) microspheres by emulsion electrospray. In the preparation process, the aqueous phase of drugs was added into the PLGA chloroform solution to form the emulsion solution. The emulsion was then electrosprayed to fabricate drug-nanoencapsulated PLGA microspheres. The morphology of the PLGA microspheres was affected by the volume ratio of aqueous drug phase and organic PLGA phase (Vw/Vo ) and the molecule weight of model drugs. Confocal laser scanning microcopy showed the nanodroplets of drug phase were scattered in the PLGA microspheres homogenously with different distribution patterns related to Vw/Vo . With the increase of the volume ratio of aqueous drug phase, the number of nanodroplets increased forming continuous phase gradually that could accelerate drug release rate. Moreover, BSA showed a slower release rate from PLGA microspheres comparing to Congo red, which indicated the drug release rate could be affected by not only Vw/Vo but also the molecule weight of model drug. In brief, the PLGA microspheres prepared using emulsion electrospray provided an efficient and simple system to achieve controlled drug release at a desired rate satisfying the need of the practices.
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Affiliation(s)
- Shenglian Yao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China,; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Huiying Liu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Shukui Yu
- Institute for Neuroscience, Capital Medical University, Beijing 100069, China
| | - Yuanyuan Li
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China,; Department of Oral and Maxillofacial Surgery, School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Xiumei Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Luning Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
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21
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Salvador-Morales C, Brahmbhatt B, Márquez-Miranda V, Araya-Duran I, Canan J, Gonzalez-Nilo F, Vilos C, Cebral J, Mut F, Lohner R, Leong B, Sundaresan G, Zweit J. Mechanistic Studies on the Self-Assembly of PLGA Patchy Particles and Their Potential Applications in Biomedical Imaging. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:7929-7942. [PMID: 27468612 DOI: 10.1021/acs.langmuir.6b02177] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Currently, several challenges prevent poly(lactic-co-glycolic acid) (PLGA) particles from reaching clinical settings. Among these is a lack of understanding of the molecular mechanisms involved in the formation of these particles. We have been studying in depth the formation of patchy polymeric particles. These particles are made of PLGA and lipid-polymer functional groups. They have unique patch-core-shell structural features: hollow or solid hydrophobic cores and a patchy surface. Previously, we identified the shear stress as the most important parameter in a patchy particle's formation. Here, we investigated in detail the role of shear stress in the patchy particle's internal and external structure using an integrative experimental and computational approach. By cross-sectioning the multipatch particles, we found lipid-based structures embedded in the entire PLGA matrix, which represents a unique finding in the PLGA field. By developing novel computational fluid dynamics and molecular dynamics simulations, we found that the shear stress determines the internal structure of the patchy particles. Equally important, we discovered that these particles emit a photoacoustic (PA) signal in the optical clinical imaging window. Our results show that particles with multiple patches emit a higher PA signal than single-patch particles. This phenomenon most likely is due to the fact that multipatchy particles absorb more heat than single-patchy particles as shown by differential scanning calorimetry analysis. Furthermore, we demonstrated the use of patchy polymeric particles as photoacoustic molecular probes both in vitro and in vivo studies. The fundamental studies described here will help us to design more effective PLGA carriers for a number of medical applications as well as to accelerate their medical translation.
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Affiliation(s)
- C Salvador-Morales
- Bioengineering Department, George Mason University , 4400 University Drive, MS 1G5, Fairfax, Virginia 22030, United States
- Krasnow Institute for Advanced Study, George Mason University , 4400 University Drive, MS 2A1, Fairfax, Virginia 22030, United States
| | - Binal Brahmbhatt
- Bioengineering Department, George Mason University , 4400 University Drive, MS 1G5, Fairfax, Virginia 22030, United States
- Krasnow Institute for Advanced Study, George Mason University , 4400 University Drive, MS 2A1, Fairfax, Virginia 22030, United States
| | - V Márquez-Miranda
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias Biologicas, Universidad Andres Bello , Santiago, Chile 8370146
| | - I Araya-Duran
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias Biologicas, Universidad Andres Bello , Santiago, Chile 8370146
| | - J Canan
- Fundación Fraunhofer Chile Research , M. Sanchez Fontecilla 310, Las Condes, Chile 7550296
| | - F Gonzalez-Nilo
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias Biologicas, Universidad Andres Bello , Santiago, Chile 8370146
| | - C Vilos
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias Biologicas, Universidad Andres Bello , Santiago, Chile 8370146
- Center for Integrative Medicine and Innovative Science, Faculty of Medicine, Universidad Andres Bello , Santiago, Chile 8370146
| | - J Cebral
- Bioengineering Department, George Mason University , 4400 University Drive, MS 1G5, Fairfax, Virginia 22030, United States
- Krasnow Institute for Advanced Study, George Mason University , 4400 University Drive, MS 2A1, Fairfax, Virginia 22030, United States
| | - F Mut
- Bioengineering Department, George Mason University , 4400 University Drive, MS 1G5, Fairfax, Virginia 22030, United States
- Krasnow Institute for Advanced Study, George Mason University , 4400 University Drive, MS 2A1, Fairfax, Virginia 22030, United States
| | - R Lohner
- Center for Computational Fluid Dynamics, College of Sciences, George Mason University , Fairfax, Virginia 22030, United States
| | - B Leong
- Center for Molecular Imaging, Department of Radiology, Virginia Commonwealth University , Richmond, Virginia 23298, United States
| | - G Sundaresan
- Center for Molecular Imaging, Department of Radiology, Virginia Commonwealth University , Richmond, Virginia 23298, United States
| | - J Zweit
- Center for Molecular Imaging, Department of Radiology, Virginia Commonwealth University , Richmond, Virginia 23298, United States
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22
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Zhu YF, Xu YN, Wu CH, Jiang F, Zhou X, Xiao YJ, Shen XC, Tao L. Preparation and characterization of tanshinone IIA OH-PDLLA-OR microspheres. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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23
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Ansary RH, Rahman MM, Awang MB, Katas H, Hadi H, Mohamed F, Doolaanea AA, Kamaruzzaman YB. Preparation, characterization and in vitro release study of BSA-loaded double-walled glucose-poly(lactide-co-glycolide) microspheres. Arch Pharm Res 2016; 39:1242-56. [PMID: 26818028 DOI: 10.1007/s12272-016-0710-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 01/18/2016] [Indexed: 11/24/2022]
Abstract
The aim of this study was to prepare a model protein, bovine serum albumin (BSA) loaded double-walled microspheres using a fast degrading glucose core, hydroxyl-terminated poly(lactide-co-glycolide) (Glu-PLGA) and a moderate-degrading carboxyl-terminated PLGA polymers to reduce the initial burst release and to eliminate the lag phase from the release profile of PLGA microspheres. The double-walled microspheres were prepared using a modified water-in-oil-in-oil-in-water (w/o/o/w) method and single-polymer microspheres were prepared using a conventional water-in-oil-in-water (w/o/w) emulsion solvent evaporation method. The particle size, morphology, encapsulation efficiency, thermal properties, in vitro drug release and structural integrity of BSA were evaluated in this study. Double-walled microspheres prepared with Glu-PLGA and PLGA polymers with a mass ratio of 1:1 were non-porous, smooth-surfaced, and spherical in shape. A significant reduction of initial burst release was achieved for the double-walled microspheres compared to single-polymer microspheres. In addition, microspheres prepared using Glu-PLGA and PLGA polymers in a mass ratio of 1:1 exhibited continuous BSA release after the small initial burst without any lag phase. It can be concluded that the double-walled microspheres made of Glu-PLGA and PLGA polymers in a mass ratio of 1:1 can be a potential delivery system for pharmaceutical proteins.
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Affiliation(s)
- Rezaul H Ansary
- Kulliyyah of Pharmacy, International Islamic University Malaysia (IIUM), 25200, Kuantan, Malaysia
| | - Mokhlesur M Rahman
- Kulliyyah of Pharmacy, International Islamic University Malaysia (IIUM), 25200, Kuantan, Malaysia.
| | - Mohamed B Awang
- Faculty of Pharmacy, Cyberjaya University College of Medical Sciences, 63000, Cyberjaya, Malaysia
| | - Haliza Katas
- Drug Delivery and Novel Targeting Research Group, Centre for Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, 50300, Kuala Lumpur, Malaysia
| | - Hazrina Hadi
- Kulliyyah of Pharmacy, International Islamic University Malaysia (IIUM), 25200, Kuantan, Malaysia
| | - Farahidah Mohamed
- Kulliyyah of Pharmacy, International Islamic University Malaysia (IIUM), 25200, Kuantan, Malaysia
| | - Abd Almonem Doolaanea
- Kulliyyah of Pharmacy, International Islamic University Malaysia (IIUM), 25200, Kuantan, Malaysia
| | - Yunus B Kamaruzzaman
- Kulliyyah of Science, International Islamic University Malaysia, 25200, Kuantan, Malaysia
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24
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Preparation, characterization, and in vitro release studies of insulin-loaded double-walled poly(lactide-co-glycolide) microspheres. Drug Deliv Transl Res 2016; 6:308-18. [DOI: 10.1007/s13346-016-0278-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Comparative studies on the properties of glycyrrhetinic acid-loaded PLGA microparticles prepared by emulsion and template methods. Int J Pharm 2015; 496:723-31. [DOI: 10.1016/j.ijpharm.2015.11.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 10/27/2015] [Accepted: 11/09/2015] [Indexed: 01/26/2023]
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26
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Shen J, Choi S, Qu W, Wang Y, Burgess DJ. In vitro-in vivo correlation of parenteral risperidone polymeric microspheres. J Control Release 2015; 218:2-12. [PMID: 26423236 DOI: 10.1016/j.jconrel.2015.09.051] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/15/2015] [Accepted: 09/25/2015] [Indexed: 01/05/2023]
Abstract
The objective of the present study was to determine whether an in vitro-in vivo correlation (IVIVC) can be established for polymeric microspheres that are equivalent in formulation composition but prepared with different manufacturing processes. Risperidone was chosen as a model therapeutic and poly(lactic-co-glycolic acid) (PLGA) with similar molecular weight as that used in the commercial product Risperdal® Consta® was used to prepare risperidone microspheres. Various manufacturing processes were investigated to produce the risperidone microspheres with similar drug loading (approx. 37%) but distinctly different physicochemical properties (e.g. porosity, particle size and particle size distribution). In vitro release of the risperidone microspheres was investigated using different release testing methods (such as sample-and-separate and USP apparatus 4). In vivo pharmacokinetic profiles of the risperidone microsphere formulations following intramuscular administration were determined using a rabbit model. Furthermore, the obtained pharmacokinetic profiles were deconvoluted using the Loo-Riegelman method and the calculated in vivo release was compared with the in vitro release of these microspheres. Level A IVIVCs were established and validated for the compositionally equivalent risperidone microspheres based on the in vitro release data obtained using USP apparatus 4. The developed IVIVCs demonstrated good predictability and were robust. These results showed that the developed USP apparatus 4 method was capable of discriminating PLGA microspheres that are equivalent in formulation composition but with manufacturing differences and predicting their in vivo performance in the investigated animal model.
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Affiliation(s)
- Jie Shen
- School of Pharmacy, University of Connecticut, Storrs, CT 06269, USA
| | - Stephanie Choi
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, FDA, Silver Spring, MD 20993, USA
| | - Wen Qu
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, FDA, Silver Spring, MD 20993, USA
| | - Yan Wang
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, FDA, Silver Spring, MD 20993, USA
| | - Diane J Burgess
- School of Pharmacy, University of Connecticut, Storrs, CT 06269, USA.
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27
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Akram M, Yu H, Wang L, Khalid H, Abbasi NM, Chen Y, Ren F, Saleem M. Sustained release of hydrophilic drug from polyphosphazenes/poly(methyl methacrylate) based microspheres and their degradation study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 58:169-79. [PMID: 26478300 DOI: 10.1016/j.msec.2015.08.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 06/15/2015] [Accepted: 08/10/2015] [Indexed: 11/18/2022]
Abstract
Drug delivery system is referred as an approach to deliver the therapeutic agents to the target site safely in order to achieve the maximum therapeutic effects. In this perspective, synthesis of three new polyphosphazenes and their blend fabrication system with poly(methyl methacrylate) is described and characterized with (1)H NMR, (31)P NMR, GPC and DSC. Furthermore, these novel blends were used to fabricate microspheres and evaluated for sustain release of hydrophilic drug (aspirin as model drug). Microspheres of the two blends showed excellent encapsulation efficacy (about 93%), controlled burst release (2.3% to 7.93%) and exhibited sustain in vitro drug release (13.44% to 32.77%) up to 218 h. At physiological conditions, the surface degradation of microspheres and diffusion process controlled the drug release sustainability. Furthermore, it was found that the degree of porosity was increased with degradation and the resulting porous network was responsible for water retention inside the microspheres. The percentage water retention was found to be interrelated with degradation time and percentage drug release.
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Affiliation(s)
- Muhammad Akram
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Haojie Yu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Li Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Hamad Khalid
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Nasir M Abbasi
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yongsheng Chen
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Fujie Ren
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Muhammad Saleem
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
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28
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Rasheed N, Khorasani AA, Cebral J, Mut F, Löhner R, Salvador-Morales C. Mechanisms Involved in the Formation of Biocompatible Lipid Polymeric Hollow Patchy Particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:6639-6648. [PMID: 26057588 DOI: 10.1021/acs.langmuir.5b01551] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Patchy polymeric particles have anisotropic surface domains that can be remarkably useful in diverse medical and industrial fields because of their ability to simultaneously present two different surface chemistries on the same construct. In this article, we report the mechanisms involved in the formation of novel lipid-polymeric hollow patchy particles during their synthesis. By cross-sectioning the patchy particles, we found that a phase segregation phenomenon occurs between the core, shell, and patch. Importantly, we found that the shear stress that the polymer blend undergoes during the particle synthesis is the most important parameter for the formation of these patchy particles. In addition, we found that the interplay of solvent-solvent, polymer-solvent, and polymer-polymer-solvent interactions generates particles with different surface morphologies. Understanding the mechanisms involved in the formation of patchy particles allows us to have a better control on their physicochemical properties. Therefore, these fundamental studies are critical to achieve batch control and scalability, which are essential aspects that must be addressed in any type of particle synthesis to be safely used in medicine.
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Affiliation(s)
- Nashaat Rasheed
- †Bioengineering Department, ‡Krasnow Institute for Advanced Study, §Department of Chemistry and Biochemistry, and ∥Center for Computational Fluid Dynamics, College of Sciences, George Mason University, Fairfax, Virginia 22030, United States
| | - Ali A Khorasani
- †Bioengineering Department, ‡Krasnow Institute for Advanced Study, §Department of Chemistry and Biochemistry, and ∥Center for Computational Fluid Dynamics, College of Sciences, George Mason University, Fairfax, Virginia 22030, United States
| | - Juan Cebral
- †Bioengineering Department, ‡Krasnow Institute for Advanced Study, §Department of Chemistry and Biochemistry, and ∥Center for Computational Fluid Dynamics, College of Sciences, George Mason University, Fairfax, Virginia 22030, United States
| | - Fernando Mut
- †Bioengineering Department, ‡Krasnow Institute for Advanced Study, §Department of Chemistry and Biochemistry, and ∥Center for Computational Fluid Dynamics, College of Sciences, George Mason University, Fairfax, Virginia 22030, United States
| | - Rainald Löhner
- †Bioengineering Department, ‡Krasnow Institute for Advanced Study, §Department of Chemistry and Biochemistry, and ∥Center for Computational Fluid Dynamics, College of Sciences, George Mason University, Fairfax, Virginia 22030, United States
| | - Carolina Salvador-Morales
- †Bioengineering Department, ‡Krasnow Institute for Advanced Study, §Department of Chemistry and Biochemistry, and ∥Center for Computational Fluid Dynamics, College of Sciences, George Mason University, Fairfax, Virginia 22030, United States
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29
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He D, Wang S, Lei L, Hou Z, Shang P, He X, Nie H. Core–shell particles for controllable release of drug. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2014.08.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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30
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Ma L, Yang Y, He C, Jia Z, Liu X, Qin J. In situ preparation and characterization of polyimide/silica composite hemispheres by inverse aqueous emulsion technique and sol-gel method. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3527-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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31
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Liu J, Yin D, Zhang S, Liu H, Zhang Q. Synthesis of polymeric core/shell microspheres with spherical virus-like surface morphology by Pickering emulsion. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2014.11.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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32
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Tan L, Jiang T, Yang X, Li W, Pan L, Yu M. Core-shell biopolymer microspheres for sustained drug release. J Appl Polym Sci 2014. [DOI: 10.1002/app.41782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Liqing Tan
- Department of Medicinal Chemistry; School of Pharmacy, Chongqing Medical University; Chongqing 400016 People's Republic of China
- Department of Pharmacy; The Third Affiliated Hospital of Third Military Medical University; Chongqing 400042 People's Republic of China
| | - Tao Jiang
- Department of Medicinal Chemistry; School of Pharmacy, Chongqing Medical University; Chongqing 400016 People's Republic of China
- Department of Pharmacy; Xinqiao Hospital of Third Military Medical University; Chongqing 400037 People's Republic of China
| | - Xiaolan Yang
- Key Laboratory of Clinical Laboratory Diagnostics of the Education Ministry; College of Laboratory Medicine; Chongqing Medical University; Chongqing 400016 People's Republic of China
| | - Wei Li
- Department of Medicinal Chemistry; School of Pharmacy, Chongqing Medical University; Chongqing 400016 People's Republic of China
| | - Lijun Pan
- Pharmaceutical Teaching Laboratory; Chongqing Medical University; Chongqing 400016 People's Republic of China
| | - Mingan Yu
- Department of Medicinal Chemistry; School of Pharmacy, Chongqing Medical University; Chongqing 400016 People's Republic of China
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33
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Khorasani AA, Weaver JL, Salvador-Morales C. Closing the gap: accelerating the translational process in nanomedicine by proposing standardized characterization techniques. Int J Nanomedicine 2014; 9:5729-51. [PMID: 25525356 PMCID: PMC4268909 DOI: 10.2147/ijn.s72479] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
On the cusp of widespread permeation of nanomedicine, academia, industry, and government have invested substantial financial resources in developing new ways to better treat diseases. Materials have unique physical and chemical properties at the nanoscale compared with their bulk or small-molecule analogs. These unique properties have been greatly advantageous in providing innovative solutions for medical treatments at the bench level. However, nanomedicine research has not yet fully permeated the clinical setting because of several limitations. Among these limitations are the lack of universal standards for characterizing nanomaterials and the limited knowledge that we possess regarding the interactions between nanomaterials and biological entities such as proteins. In this review, we report on recent developments in the characterization of nanomaterials as well as the newest information about the interactions between nanomaterials and proteins in the human body. We propose a standard set of techniques for universal characterization of nanomaterials. We also address relevant regulatory issues involved in the translational process for the development of drug molecules and drug delivery systems. Adherence and refinement of a universal standard in nanomaterial characterization as well as the acquisition of a deeper understanding of nanomaterials and proteins will likely accelerate the use of nanomedicine in common practice to a great extent.
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Affiliation(s)
- Ali A Khorasani
- Department of Chemistry and Biochemistry, George Mason University, Fairfax, VA, USA ; Bioengineering Department, George Mason University, Fairfax, VA, USA ; Krasnow Institute for Advanced Study, George Mason University, Fairfax, VA, USA
| | - James L Weaver
- Division of Applied Regulatory Science, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD, USA
| | - Carolina Salvador-Morales
- Bioengineering Department, George Mason University, Fairfax, VA, USA ; Krasnow Institute for Advanced Study, George Mason University, Fairfax, VA, USA
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Shi Y, Ma S, Tian R, Zhao Y, Jiao Q, Ma X, Shang Q. Synthesis, characterization and release profiles of nanoparticles self-assembled from poly (PEGMA-co-MMA-co-acryloyl-β
-CD) copolymers. SURF INTERFACE ANAL 2014. [DOI: 10.1002/sia.5704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yongli Shi
- School of Pharmacy; Xinxiang Medical University; Xinxiang 453003 China
| | - Suying Ma
- School of Pharmacy; Xinxiang Medical University; Xinxiang 453003 China
| | - Ruiqiong Tian
- Chemical and Pharmaceutical Engineering Institute; Hebei University of Science and Technology; 050000 Hebei China
| | - Yingge Zhao
- Chemical and Pharmaceutical Engineering Institute; Hebei University of Science and Technology; 050000 Hebei China
| | - Qian Jiao
- Chemical and Pharmaceutical Engineering Institute; Hebei University of Science and Technology; 050000 Hebei China
| | - Xu Ma
- Chemical and Pharmaceutical Engineering Institute; Hebei University of Science and Technology; 050000 Hebei China
| | - Qing Shang
- Chemical and Pharmaceutical Engineering Institute; Hebei University of Science and Technology; 050000 Hebei China
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Holban AM, Grumezescu V, Grumezescu AM, Vasile BŞ, Truşcă R, Cristescu R, Socol G, Iordache F. Antimicrobial nanospheres thin coatings prepared by advanced pulsed laser technique. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:872-880. [PMID: 24991524 PMCID: PMC4077416 DOI: 10.3762/bjnano.5.99] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 05/11/2014] [Indexed: 06/03/2023]
Abstract
We report on the fabrication of thin coatings based on polylactic acid-chitosan-magnetite-eugenol (PLA-CS-Fe3O4@EUG) nanospheres by matrix assisted pulsed laser evaporation (MAPLE). Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) investigation proved that the homogenous Fe3O4@EUG nanoparticles have an average diameter of about 7 nm, while the PLA-CS-Fe3O4@EUG nanospheres diameter sizes range between 20 and 80 nm. These MAPLE-deposited coatings acted as bioactive nanosystems and exhibited a great antimicrobial effect by impairing the adherence and biofilm formation of Staphylococcus aureus (S. aureus) and Pseudomonas aeruginosa (P. aeruginosa) bacteria strains. Moreover, the obtained nano-coatings showed a good biocompatibility and facilitated the normal development of human endothelial cells. These nanosystems may be used as efficient alternatives in treating and preventing bacterial infections.
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Affiliation(s)
- Alina Maria Holban
- University of Bucharest, Faculty of Biology, Microbiology Department, Aleea Portocalelor no 1–3, 060101 Bucharest, Romania
| | - Valentina Grumezescu
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1–7, 011061 Bucharest, Romania
- National Institute for Lasers, Plasma & Radiation Physics, Lasers Department, P.O.Box MG-36, Bucharest-Magurele, Romania
| | - Alexandru Mihai Grumezescu
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1–7, 011061 Bucharest, Romania
| | - Bogdan Ştefan Vasile
- University Politehnica of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1–7, 011061 Bucharest, Romania
| | - Roxana Truşcă
- S.C. Metav-CD S.A., 31 Rosetti Str., 020015 Bucharest, Romania
| | - Rodica Cristescu
- National Institute for Lasers, Plasma & Radiation Physics, Lasers Department, P.O.Box MG-36, Bucharest-Magurele, Romania
| | - Gabriel Socol
- National Institute for Lasers, Plasma & Radiation Physics, Lasers Department, P.O.Box MG-36, Bucharest-Magurele, Romania
| | - Florin Iordache
- Flow Cytometry and Cell Therapy Laboratory, Institute of Cellular Biology and Pathology “Nicolae Simionescu” (ICBP), Bucharest, Romania
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