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Lian S, Lamprou D, Zhao M. Electrospinning technologies for the delivery of Biopharmaceuticals: Current status and future trends. Int J Pharm 2024; 651:123641. [PMID: 38029864 DOI: 10.1016/j.ijpharm.2023.123641] [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: 08/11/2023] [Revised: 11/15/2023] [Accepted: 11/26/2023] [Indexed: 12/01/2023]
Abstract
This review provides an in-depth exploration of electrospinning techniques employed to produce micro- or nanofibres of biopharmaceuticals using polymeric solutions or melts with high-voltage electricity. Distinct from prior reviews, the current work narrows its focus on the recent developments and advanced applications in biopharmaceutical formulations. It begins with an overview of electrospinning principles, covering both solution and melt modes. Various methods for incorporating biopharmaceuticals into electrospun fibres, such as surface adsorption, blending, emulsion, co-axial, and high-throughput electrospinning, are elaborated. The review also surveys a wide array of biopharmaceuticals formulated through electrospinning, thereby identifying both opportunities and challenges in this emerging field. Moreover, it outlines the analytical techniques for characterizing electrospun fibres and discusses the legal and regulatory requirements for their production. This work aims to offer valuable insights into the evolving realm of electrospun biopharmaceutical delivery systems.
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Affiliation(s)
- Shangjie Lian
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, UK
| | | | - Min Zhao
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, UK; China Medical University- Queen's University Belfast Joint College (CQC), China Medical University, Shenyang 110000, China
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2
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Vu TH, Yadav S, Tran CD, Nguyen HQ, Nguyen TH, Nguyen T, Nguyen TK, Fastier-Wooller JW, Dinh T, Phan HP, Ta HT, Nguyen NT, Dao DV, Dau VT. Charge-Reduced Particles via Self-Propelled Electrohydrodynamic Atomization for Drug Delivery Applications. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37318848 DOI: 10.1021/acsami.3c02000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Electrohydrodynamic atomization (EHDA) provides unparalleled control over the size and production rate of particles from solution. However, conventional methods produce highly charged particles that are not appropriate for inhalation drug delivery. We present a self-propelled EHDA system to address this challenge, a promising one-step platform for generating and delivering charge-reduced particles. Our approach uses a sharp electrode to produce ion wind, which reduces the cumulative charge in the particles and transports them to a target in front of the nozzle. We effectively controlled the morphologies of polymer products created from poly(vinylidene fluoride) (PVDF) at various concentrations. Our technique has also been proven safe for bioapplications, as evidenced by the delivery of PVDF particles onto breast cancer cells. The combination of simultaneous particle production and charge reduction, along with its direct delivery capability, makes the self-propelled EHDA a versatile technique for drug delivery applications.
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Affiliation(s)
- Trung-Hieu Vu
- School of Engineering and Built Environment, Griffith University, Gold Coast, QLD 4215, Australia
| | - Sharda Yadav
- Queensland Micro and Nanotechnology Centre, Griffith University, Brisbane, QLD 4111, Australia
| | - Canh-Dung Tran
- School of Mechanical and Electrical Engineering, University of Southern Queensland, Toowoomba, QLD 4350, Australia
| | - Hong-Quan Nguyen
- School of Engineering and Built Environment, Griffith University, Gold Coast, QLD 4215, Australia
| | - Tuan-Hung Nguyen
- School of Engineering and Built Environment, Griffith University, Gold Coast, QLD 4215, Australia
| | - Thanh Nguyen
- School of Mechanical and Electrical Engineering, University of Southern Queensland, Toowoomba, QLD 4350, Australia
| | - Tuan-Khoa Nguyen
- Queensland Micro and Nanotechnology Centre, Griffith University, Brisbane, QLD 4111, Australia
| | - Jarred W Fastier-Wooller
- School of Engineering and Built Environment, Griffith University, Gold Coast, QLD 4215, Australia
- School of Engineering, University of Tokyo, Tokyo 113-8656, Japan
| | - Toan Dinh
- School of Mechanical and Electrical Engineering, University of Southern Queensland, Toowoomba, QLD 4350, Australia
| | - Hoang-Phuong Phan
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Hang Thu Ta
- Queensland Micro and Nanotechnology Centre, Griffith University, Brisbane, QLD 4111, Australia
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane, QLD 4067, Australia
- School of Environment and Science, Griffith University, Brisbane, QLD 4211, Australia
| | - Nam-Trung Nguyen
- Queensland Micro and Nanotechnology Centre, Griffith University, Brisbane, QLD 4111, Australia
| | - Dzung Viet Dao
- School of Engineering and Built Environment, Griffith University, Gold Coast, QLD 4215, Australia
| | - Van Thanh Dau
- Centre for Catalysis and Clean Energy, Griffith University, Gold Coast, QLD 4215, Australia
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Formation of disaggregated polymer microspheres by a novel method combining pulsed voltage electrospray and wet phase inversion techniques. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Dubay R, Urban JN, Darling EM. Single-Cell Microgels for Diagnostics and Therapeutics. ADVANCED FUNCTIONAL MATERIALS 2021; 31:2009946. [PMID: 36329867 PMCID: PMC9629779 DOI: 10.1002/adfm.202009946] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Indexed: 05/14/2023]
Abstract
Cell encapsulation within hydrogel droplets is transforming what is feasible in multiple fields of biomedical science such as tissue engineering and regenerative medicine, in vitro modeling, and cell-based therapies. Recent advances have allowed researchers to miniaturize material encapsulation complexes down to single-cell scales, where each complex, termed a single-cell microgel, contains only one cell surrounded by a hydrogel matrix while remaining <100 μm in size. With this achievement, studies requiring single-cell resolution are now possible, similar to those done using liquid droplet encapsulation. Of particular note, applications involving long-term in vitro cultures, modular bioinks, high-throughput screenings, and formation of 3D cellular microenvironments can be tuned independently to suit the needs of individual cells and experimental goals. In this progress report, an overview of established materials and techniques used to fabricate single-cell microgels, as well as insight into potential alternatives is provided. This focused review is concluded by discussing applications that have already benefited from single-cell microgel technologies, as well as prospective applications on the cusp of achieving important new capabilities.
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Affiliation(s)
- Ryan Dubay
- Center for Biomedical Engineering, Brown University, 175 Meeting St., Providence, RI 02912, USA
- Draper, 555 Technology Sq., Cambridge, MA 02139, USA
| | - Joseph N Urban
- Center for Biomedical Engineering, Brown University, 175 Meeting St., Providence, RI 02912, USA
| | - Eric M Darling
- Department of Molecular Pharmacology, Physiology, and Biotechnology, Center for Biomedical Engineering, School of Engineering, Department of Orthopaedics, Brown University, 175 Meeting St., Providence, RI 02912, USA
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Electrosprayed Chitosan-Copper Complex Microspheres with Uniform Size. MATERIALS 2021; 14:ma14195630. [PMID: 34640029 PMCID: PMC8509822 DOI: 10.3390/ma14195630] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/21/2021] [Accepted: 09/25/2021] [Indexed: 11/18/2022]
Abstract
Chitosan-based nano- and microspheres have shown great potential in a broad range of applications, including drug delivery, bone tissue engineering, wastewater treatments, etc. The preparation of uniformly sized spheres with controlled morphology and microstructure is still a challenge. This work investigates the influence of cupric ions (Cu2+) on the size, shape, morphology and stability of electrosprayed chitosan–copper (CHT–Cu2+) complex microspheres, using chitosans with different degrees of deacetylation. The dynamic viscosity of CHT–Cu2+ solutions was measured by Höppler viscometer, while attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was used for the identification of dried microspheres. The size, shape and morphology of microspheres were analyzed by light microscope and scanning electron microscopy (SEM), while stability of dried microspheres was evaluated in different buffer solutions. The volume ratio of wet and dry microspheres was assessed based on the estimated diameter of microspheres. The higher concentration of Cu2+ ions resulted in a decrease in viscosity of CHT–Cu2+ solutions and volume ratio of prepared microspheres. Changes in the intensities and wave numbers of absorption bands of amino and hydroxyl groups, amide I and amide II suggested that the nitrogen and oxygen atoms in chitosan are coordinating the cupric ions. Micrographs obtained by light microscope and SEM showed that all prepared samples are spherical. The increase of cupric ions concentration changed the topography of microspheres and decreased their size. These results indicated the successful electrospraying of CHT–Cu2+ microspheres with uniform size and good stability in aqueous medium.
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Bhujbal SV, Mitra B, Jain U, Gong Y, Agrawal A, Karki S, Taylor LS, Kumar S, (Tony) Zhou Q. Pharmaceutical amorphous solid dispersion: A review of manufacturing strategies. Acta Pharm Sin B 2021; 11:2505-2536. [PMID: 34522596 PMCID: PMC8424289 DOI: 10.1016/j.apsb.2021.05.014] [Citation(s) in RCA: 182] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/05/2021] [Accepted: 04/13/2021] [Indexed: 12/15/2022] Open
Abstract
Amorphous solid dispersions (ASDs) are popular for enhancing the solubility and bioavailability of poorly water-soluble drugs. Various approaches have been employed to produce ASDs and novel techniques are emerging. This review provides an updated overview of manufacturing techniques for preparing ASDs. As physical stability is a critical quality attribute for ASD, the impact of formulation, equipment, and process variables, together with the downstream processing on physical stability of ASDs have been discussed. Selection strategies are proposed to identify suitable manufacturing methods, which may aid in the development of ASDs with satisfactory physical stability.
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Key Words
- 3DP, three-dimensional printing
- ASDs, amorphous solid dispersions
- ASES, aerosol solvent extraction system
- Amorphous solid dispersions
- CAP, cellulose acetate phthalate
- CO2, carbon dioxide
- CSG, continuous-spray granulation
- Co-precipitation
- Downstream processing
- Drug delivery
- EPAS, evaporative aqueous solution precipitation
- Eudragit®, polymethacrylates derivatives
- FDM, fused deposition modeling
- GAS, gas antisolvent
- HME, hot-melt extrusion
- HPC, hydroxypropyl cellulose
- HPMC, hydroxypropyl methylcellulose
- HPMCAS, hydroxypropyl methylcellulose acetate succinate
- HPMCP, hypromellose phthalate
- Manufacturing
- Melting process
- PCA, precipitation with compressed fluid antisolvent
- PGSS, precipitation from gas-saturated solutions
- PLGA, poly(lactic-co-glycolic acid
- PVP, polyvinylpyrrolidone
- PVPVA, polyvinylpyrrolidone/vinyl acetate
- RESS, rapid expansion of a supercritical solution
- SAS, supercritical antisolvent
- SCFs, supercritical fluids
- SEDS, solution-enhanced dispersion by SCF
- SLS, selective laser sintering
- Selection criteria
- Soluplus®, polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer
- Solvent evaporation
- Stability
- Tg, glass transition temperature
- USC, ultrasound compaction
- scCO2, supercritical CO2
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Affiliation(s)
- Sonal V. Bhujbal
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, IN 47907, USA
| | - Biplob Mitra
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Uday Jain
- Material Science and Engineering, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Yuchuan Gong
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Anjali Agrawal
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Shyam Karki
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Lynne S. Taylor
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, IN 47907, USA
| | - Sumit Kumar
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Qi (Tony) Zhou
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, IN 47907, USA
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Ghanbari E, Solouk A, Mehdinavaz Aghdam R, Haghbin Nazarpak M, Ahmadi Tafti SH. A novel substrate based on electrospun polyurethane nanofibers and electrosprayed polyvinyl alcohol microparticles for recombinant human erythropoietin delivery. J Biomed Mater Res A 2021; 110:181-195. [PMID: 34309172 DOI: 10.1002/jbm.a.37275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/29/2021] [Accepted: 07/07/2021] [Indexed: 11/08/2022]
Abstract
After myocardial infarction caused by a heart attack, endothelial cells need to be preserved in order to regenerate new capillaries. Moreover, sufficient mechanical support is necessary for the infarcted myocardium to pump the blood. Herein, we designed a novel substrate containing polyurethane (PU) nanofibrous layers and recombinant human erythropoietin (rhEPO)-loaded microparticles for both controlled releases of rhEPO and mechanical support of myocardium. In this system, the single-layer (SL) and double-layer (DL) PU nanofibers were electrospun, and then microparticles with different rhEPO:polyvinyl alcohol (PVA) ratios were electrosprayed on the layers. The in vitro release behavior of rhEPO from SL substrates was not satisfactory, and then the study focused on DL patches in which the release profile was in accordance with Korsmeyer-Peppas model. The release exponent of 0.89 for the DL PU/120PVA:1rhEPO represented zero-order release. The results inferred that these substrates possessed highly tailored mechanical properties; Young's modulus and ultimate tensile strength of the substrates were 74-172 kPa and 7.4-9.9 MPa, respectively. The rhEPO release from the substrates was leading to the proper adhesion of endothelial cells and more than 95% cell viability. The results indicated that the patch of elastic nanofibers and microparticles offered a potential substrate for simultaneous rhEPO delivery to endothelial cells and also mechanically supporting the infarcted myocardium.
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Affiliation(s)
- Elmira Ghanbari
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Atefeh Solouk
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | | | - Masoumeh Haghbin Nazarpak
- New Technologies Research Center, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
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Tanhaei A, Mohammadi M, Hamishehkar H, Hamblin MR. Electrospraying as a novel method of particle engineering for drug delivery vehicles. J Control Release 2021; 330:851-865. [DOI: 10.1016/j.jconrel.2020.10.059] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 10/26/2020] [Accepted: 10/28/2020] [Indexed: 02/07/2023]
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9
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Kupikowska-Stobba B, Lewińska D. Polymer microcapsules and microbeads as cell carriers for in vivo biomedical applications. Biomater Sci 2020; 8:1536-1574. [PMID: 32110789 DOI: 10.1039/c9bm01337g] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Polymer microcarriers are being extensively explored as cell delivery vehicles in cell-based therapies and hybrid tissue and organ engineering. Spherical microcarriers are of particular interest due to easy fabrication and injectability. They include microbeads, composed of a porous matrix, and microcapsules, where matrix core is additionally covered with a semipermeable membrane. Microcarriers provide cell containment at implantation site and protect the cells from host immunoresponse, degradation and shear stress. Immobilized cells may be genetically altered to release a specific therapeutic product directly at the target site, eliminating side effects of systemic therapies. Cell microcarriers need to fulfil a number of extremely high standards regarding their biocompatibility, cytocompatibility, immunoisolating capacity, transport, mechanical and chemical properties. To obtain cell microcarriers of specified parameters, a wide variety of polymers, both natural and synthetic, and immobilization methods can be applied. Yet so far, only a few approaches based on cell-laden microcarriers have reached clinical trials. The main issue that still impedes progress of these systems towards clinical application is limited cell survival in vivo. Herein, we review polymer biomaterials and methods used for fabrication of cell microcarriers for in vivo biomedical applications. We describe their key limitations and modifications aiming at improvement of microcarrier in vivo performance. We also present the main applications of polymer cell microcarriers in regenerative medicine, pancreatic islet and hepatocyte transplantation and in the treatment of cancer. Lastly, we outline the main challenges in cell microimmobilization for biomedical purposes, the strategies to overcome these issues and potential future improvements in this area.
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Affiliation(s)
- Barbara Kupikowska-Stobba
- Laboratory of Electrostatic Methods of Bioencapsulation, Department of Biomaterials and Biotechnological Systems, Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4, 02-109 Warsaw, Poland.
| | - Dorota Lewińska
- Laboratory of Electrostatic Methods of Bioencapsulation, Department of Biomaterials and Biotechnological Systems, Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4, 02-109 Warsaw, Poland.
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10
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Investigating the Effect of Encapsulation Processing Parameters on the Viability of Therapeutic Viruses in Electrospraying. Pharmaceutics 2020; 12:pharmaceutics12040388. [PMID: 32344667 PMCID: PMC7238258 DOI: 10.3390/pharmaceutics12040388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 12/12/2022] Open
Abstract
The ability of viruses to introduce genetic material into cells can be usefully exploited in a variety of therapies and also vaccination. Encapsulating viruses to limit inactivation by the immune system before reaching the desired target and allowing for controlled release is a promising strategy of delivery. Conventional encapsulation methods, however, can significantly reduce infectivity. The aim of this study was to investigate electrospraying as an alternative encapsulation technique. Two commonly used therapeutic viruses, adenovirus (Ad) and modified vaccinia Ankara (MVA), were selected. First, solutions containing the viruses were electrosprayed in a single needle configuration at increasing voltages to examine the impact of the electric field. Second, the effect of exposing the viruses to pure organic solvents was investigated and compared to that occurring during coaxial electrospraying. Infectivity was determined by measuring the luminescence produced from lysed A549 cells after incubation with treated virus. Neither Ad nor MVA exhibited any significant loss in infectivity when electrosprayed within the range of electrospraying parameters relevant for encapsulation. A significant decrease in infectivity was only observed when MVA was electrosprayed at the highest voltage, 24 kV, and when MVA and Ad were exposed to selected pure organic solvents. Thus, it was concluded that electrospraying would be a viable method for virus encapsulation.
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11
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Feasibility of electrospraying fully aqueous bovine serum albumin solutions. Eur J Pharm Biopharm 2020; 147:102-110. [DOI: 10.1016/j.ejpb.2019.12.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 11/12/2019] [Accepted: 12/15/2019] [Indexed: 11/18/2022]
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12
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Influence of Solvent Selection in the Electrospraying
Process of Polycaprolactone. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9030402] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Electrosprayed polycaprolactone (PCL) microparticles are widely used in medical tissueengineering, drug control release delivery, and food packaging due to their prominent structuresand properties. In electrospraying, the selection of a suitable solvent system as the carrier of PCL isfundamental and a prerequisite for the stabilization of electrospraying, and the control ofmorphology and structure of electrosprayed particles. The latter is not only critical for diversifyingthe characteristics of electrosprayed particles and achieving improvement in their properties, butalso promotes the efficiency of the process and deepens the applications of electrosprayed particlesin various fields. In order to make it systematic and more accessible, this review mainly concludesthe effects of different solution properties on the operating parameters in electrospraying on theformation of Taylor cone and the final structure as well as the morphology. Meanwhile,correlations between operating parameters and electrospraying stages are summarized as well.Finally, this review provides detailed guidance on the selection of a suitable solvent systemregarding the desired morphology, structure, and applications of PCL particles.
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Leng J, Wang Z, Wang J, Wu HH, Yan G, Li X, Guo H, Liu Y, Zhang Q, Guo Z. Advances in nanostructures fabricated via spray pyrolysis and their applications in energy storage and conversion. Chem Soc Rev 2019; 48:3015-3072. [DOI: 10.1039/c8cs00904j] [Citation(s) in RCA: 195] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review provides insight into various nanostructures designed by spray pyrolysis and their applications in energy storage and conversion.
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Affiliation(s)
- Jin Leng
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
| | - Zhixing Wang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
| | - Jiexi Wang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
- State Key Laboratory for Powder Metallurgy
| | - Hong-Hui Wu
- Department of Chemistry
- University of Nebraska-Lincoln
- Lincoln
- USA
| | - Guochun Yan
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
| | - Xinhai Li
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
| | - Huajun Guo
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P. R. China
| | - Yong Liu
- State Key Laboratory for Powder Metallurgy
- Central South University
- Changsha 410083
- P. R. China
| | - Qiaobao Zhang
- Department of Materials Science and Engineering
- College of Materials
- Xiamen University
- Xiamen
- P. R. China
| | - Zaiping Guo
- Institute for Superconducting and Electronic Materials
- Australian Institute for Innovative Materials
- University of Wollongong
- North Wollongong 2522
- Australia
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14
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Pawar A, Thakkar S, Misra M. A bird's eye view of nanoparticles prepared by electrospraying: advancements in drug delivery field. J Control Release 2018; 286:179-200. [DOI: 10.1016/j.jconrel.2018.07.036] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/22/2018] [Accepted: 07/23/2018] [Indexed: 01/19/2023]
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15
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Pharmaceutical Applications of Electrospraying. J Pharm Sci 2016; 105:2601-2620. [DOI: 10.1016/j.xphs.2016.04.024] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 04/14/2016] [Accepted: 04/22/2016] [Indexed: 02/01/2023]
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16
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Rivas-Montoya E, Miguel Ochando-Pulido J, Manuel López-Romero J, Martinez-Ferez A. Application of a novel gastrointestinal tract simulator system based on a membrane bioreactor (SimuGIT) to study the stomach tolerance and effective delivery enhancement of nanoencapsulated macelignan. Chem Eng Sci 2016. [DOI: 10.1016/j.ces.2015.10.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Guarino V, Altobelli R, Cirillo V, Cummaro A, Ambrosio L. Additive electrospraying: a route to process electrospun scaffolds for controlled molecular release. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3588] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials; Department of Chemical Science and Materials Technology, National Research Council of Italy; V.le Kennedy 54, Mostra D'Oltremare, Pad.20 80125 Naples Italy
- Department of Chemical Sciences and Materials Technology; National Research Council of Italy; 80125 Naples Italy
| | - Rosaria Altobelli
- Institute for Polymers, Composites and Biomaterials; Department of Chemical Science and Materials Technology, National Research Council of Italy; V.le Kennedy 54, Mostra D'Oltremare, Pad.20 80125 Naples Italy
- Department of Chemical Sciences and Materials Technology; National Research Council of Italy; 80125 Naples Italy
| | - Valentina Cirillo
- Institute for Polymers, Composites and Biomaterials; Department of Chemical Science and Materials Technology, National Research Council of Italy; V.le Kennedy 54, Mostra D'Oltremare, Pad.20 80125 Naples Italy
- Department of Chemical Sciences and Materials Technology; National Research Council of Italy; 80125 Naples Italy
| | - Annunziata Cummaro
- Institute for Polymers, Composites and Biomaterials; Department of Chemical Science and Materials Technology, National Research Council of Italy; V.le Kennedy 54, Mostra D'Oltremare, Pad.20 80125 Naples Italy
- Department of Chemical Sciences and Materials Technology; National Research Council of Italy; 80125 Naples Italy
| | - Luigi Ambrosio
- Institute for Polymers, Composites and Biomaterials; Department of Chemical Science and Materials Technology, National Research Council of Italy; V.le Kennedy 54, Mostra D'Oltremare, Pad.20 80125 Naples Italy
- Department of Chemical Sciences and Materials Technology; National Research Council of Italy; 80125 Naples Italy
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Jafari-Nodoushan M, Barzin J, Mobedi H. Size and morphology controlling of PLGA microparticles produced by electro hydrodynamic atomization. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3480] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Milad Jafari-Nodoushan
- Novel Drug Delivery Systems Department; Iran Polymer and Petrochemical Institute; P.O. Box 14965/115 Tehran Iran
| | - Jalal Barzin
- Biomaterials Department; Iran Polymer and Petrochemical Institute; P.O. Box 14965/115 Tehran Iran
| | - Hamid Mobedi
- Novel Drug Delivery Systems Department; Iran Polymer and Petrochemical Institute; P.O. Box 14965/115 Tehran Iran
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19
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Pankongadisak P, Ruktanonchai UR, Supaphol P, Suwantong O. Preparation and characterization of silver nanoparticles-loaded calcium alginate beads embedded in gelatin scaffolds. AAPS PharmSciTech 2014; 15:1105-15. [PMID: 24851817 DOI: 10.1208/s12249-014-0140-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 04/24/2014] [Indexed: 11/30/2022] Open
Abstract
Silver nanoparticles (AgNPs)-loaded alginate beads embedded in gelatin scaffolds were successfully prepared. The AgNPs-loaded calcium alginate beads were prepared by electrospraying method. The effect of alginate concentration and applied voltage on shape and diameter of beads was studied. The diameter of dry AgNPs-loaded calcium alignate beads at various concentrations of AgNO3 ranged between 154 and 171 μm. The AgNPs-loaded calcium alginate beads embedded in gelatin scaffolds were fabricated by freeze-drying method. The water swelling and weight loss behaviors of the AgNPs-loaded alginate beads embedded in gelatin scaffolds increased with an increase in the submersion time. Moreover, the genipin-cross-linked gelatin scaffolds were proven to be nontoxic to normal human dermal fibroblasts, suggesting their potential uses as wound dressings.
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Pankongadisak P, Ruktanonchai UR, Supaphol P, Suwantong O. Development of silver nanoparticles-loaded calcium alginate beads embedded in gelatin scaffolds for use as wound dressings. POLYM INT 2014. [DOI: 10.1002/pi.4787] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | - Pitt Supaphol
- Petroleum and Petrochemical College and Center of Excellence on Petrochemical and Materials Technology; Chulalongkorn University; Pathumwan Bangkok 10330 Thailand
| | - Orawan Suwantong
- School of Science; Mae Fah Luang University, Tasud, Muang; Chiang Rai 57100 Thailand
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Bock N, Dargaville TR, Woodruff MA. Controlling microencapsulation and release of micronized proteins using poly(ethylene glycol) and electrospraying. Eur J Pharm Biopharm 2014; 87:366-77. [PMID: 24657821 DOI: 10.1016/j.ejpb.2014.03.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 03/01/2014] [Accepted: 03/14/2014] [Indexed: 10/25/2022]
Abstract
The fabrication of tailored microparticles for delivery of therapeutics is a challenge relying upon a complex interplay between processing parameters and materials properties. The emerging use of electrospraying allows better tailoring of particle morphologies and sizes than current techniques, critical to reproducible release profiles. While dry encapsulation of proteins is essential for the release of active therapeutics from microparticles, it is currently uncharacterized in electrospraying. To this end, poly(ethylene glycol) (PEG) was assessed as a micronizing and solubilizing agent for dry protein encapsulation and release from electrosprayed particles made from polycaprolactone (PCL). The physical effect of PEG in protein-loaded poly(lactic-co-glycolic acid) (PLGA) particles was also studied, for comparison. The addition of 5-15 wt% PEG 6 kDa or 35 kDa resulted in reduced PCL particle sizes and broadened distributions, which could be improved by tailoring the electrospraying processing parameters, namely by reducing polymer concentration and increasing flow rate. Upon micronization, protein particle size was reduced to the micrometer domain, resulting in homogenous encapsulation in electrosprayed PCL microparticles. Microparticle size distributions were shown to be the most determinant factor for protein release by diffusion and allowed specific control of release patterns.
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Affiliation(s)
- Nathalie Bock
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Australia; Biomaterials and Tissue Morphology Group, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Australia; Regenerative Medicine Group, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Australia.
| | - Tim R Dargaville
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Australia
| | - Maria A Woodruff
- Biomaterials and Tissue Morphology Group, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Australia
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Nyström M, Murtomaa M, Roine J, Sandler N, Salonen J. Processing of pharmaceutical materials by electrospraying under reduced pressure. Drug Dev Ind Pharm 2013; 41:116-23. [DOI: 10.3109/03639045.2013.850708] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Zamani M, Prabhakaran MP, Ramakrishna S. Advances in drug delivery via electrospun and electrosprayed nanomaterials. Int J Nanomedicine 2013; 8:2997-3017. [PMID: 23976851 PMCID: PMC3746732 DOI: 10.2147/ijn.s43575] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Electrohydrodynamic (EHD) techniques refer to procedures that utilize electrostatic forces to fabricate fibers or particles of different shapes with sizes in the nano-range to a few microns through electrically charged fluid jet. Employing different techniques, such as blending, surface modification, and coaxial process, there is a great possibility of incorporating bioactive such molecules as drugs, DNA, and growth factors into the nanostructures fabricated via EHD techniques. By careful selection of materials and processing conditions, desired encapsulation efficiency as well as preserved bioactivity of the therapeutic agents can be achieved. The drug-loaded nanostructures produced can be applied via different routes, such as implantation, injection, and topical or oral administration for a wide range of disease treatment. Taking advantage of the recent developments in EHD techniques like the coaxial process or multilayered structures, individually controlled delivery of multiple drugs is achievable, which is of great demand in cancer therapy and growth-factor delivery. This review summarizes the most recent techniques and postmodification methods to fabricate electrospun nanofibers and electrosprayed particles for drug-delivery applications.
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Affiliation(s)
- Maedeh Zamani
- Department of Mechanical Engineering, National University of Singapore, Singapore
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24
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Wang Y, Yang X, Liu W, Zhang F, Cai Q, Deng X. Controlled release behaviour of protein-loaded microparticles prepared via coaxial or emulsion electrospray. J Microencapsul 2013; 30:490-7. [PMID: 23346923 PMCID: PMC3709885 DOI: 10.3109/02652048.2012.752537] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Biodegradable poly (lactic-co-glycolic acid) (PLGA) microparticles are an effective way to achieve sustained drug release. In this study, we investigated a sustained release model of PLGA microparticles with incorporated protein via either emulsion or coaxial electrospray techniques. PLGA (75:25) was used as the carrier, and bovine serum albumin as a model protein. Coaxial electrospray resulted in a type of core-shell structure with mean diameters of 2.41 ± 0.60 µm and a centralised protein distribution within the core. Emulsion electrospray formed bigger microparticles with mean diameters of 22.75 ± 8.05 µm and a heterogeneous protein distribution throughout the microparticles. The coaxial electrospray microparticles presented a much slighter burst release than the emulsion electrospray microparticles. Loading efficiency was significantly higher (p < 0.05) in the coaxial group than emulsion group. This indicated that both emulsion and coaxial electrospray could produce protein-loaded microparticles with sustained release behaviour, but the former revealed a superior approach for drug delivery.
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Affiliation(s)
- Ying Wang
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China
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Rezvanpour A, Krantz WB, Wang CH. Scaling analysis of the electrohydrodynamic atomization (EHDA) process for pharmaceutical particle fabrication. Chem Eng Sci 2012. [DOI: 10.1016/j.ces.2012.06.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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27
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Abstract
Electrospraying is inexpensive and an effective way to produce submicron range coating. Spray Angle and Jet Length are important characteristics that affect coating quality while polymer solution subjected to electrospraying. It was of interest to determine the effect of the process parameters on Jet Length. In this paper, an attempt was made to apply the electrospraying concept for coating textile surfaces. Series of experiments were carried out employing different settings of process parameters such as voltage, nozzle-collector distance and polymer concentration. Thermoplastic polyurethane dissolved in tetrahydrofluran was used as a solution. The results provide some insight into the effect of electrospraying process parameters on Jet Length
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Abstract
Electrospraying is a method of generating fine mist through electrostatic charging. It is a versatile method based on electrohydrodynamic process for forming small droplets. These droplets are highly charged. This prevents droplet coagulation and promotes self-dispersion which results in uniform coating on the target substrate. Electrospraying is inexpensive and an effective way to produce micro-scale coating. In this paper, an attempt was made to apply the electrospraying concept for coating textile surfaces. It was of interest to develop an understanding of the spraying characteristics of a polymer solution subjected to electrospraying and to determine the effect of the process parameters such as voltage, nozzle-collector distance and polymer concentration. Series of experiments were carried out employing different settings of process parameters. Thermoplastic polyurethane dissolved in tetrahydrofluran was used as a solution. The results provide some insight into selection of electrospraying parameters, and surface morphology of polymer deposition on fabric.
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29
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Almería B, Fahmy TM, Gomez A. A multiplexed electrospray process for single-step synthesis of stabilized polymer particles for drug delivery. J Control Release 2011; 154:203-10. [DOI: 10.1016/j.jconrel.2011.05.018] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 04/11/2011] [Accepted: 05/17/2011] [Indexed: 01/19/2023]
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30
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Enayati M, Chang MW, Bragman F, Edirisinghe M, Stride E. Electrohydrodynamic preparation of particles, capsules and bubbles for biomedical engineering applications. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2010.11.038] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Ahlin Grabnar P, Kristl J. The manufacturing techniques of drug-loaded polymeric nanoparticles from preformed polymers. J Microencapsul 2011; 28:323-35. [DOI: 10.3109/02652048.2011.569763] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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32
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Functionalization of lactose as a biological carrier for bovine serum albumin by electrospraying. Int J Pharm 2011; 414:1-5. [PMID: 21536114 DOI: 10.1016/j.ijpharm.2011.04.045] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 04/14/2011] [Accepted: 04/16/2011] [Indexed: 11/23/2022]
Abstract
Electrohydrodynamic atomization (EHDA) is an attractive technique to make new types of composite particles for pharmaceutical use. The aim of this work is to prove that EHDA can be successfully used to attach nano/micro-particles of protein to lactose, the commonly used excipient for pulmonary delivery, keeping all the biological properties of the protein after dissolution of the complex. Bovine serum albumin (BSA) was used as a model protein. The atomization of BSA was tested with two different solvents, dimethyl sulfoxide (DMSO) and ethanol. The process using DMSO resulted in the formation of a thin layer of protein while the tests using ethanol resulted in the formation of spherical particles with mean diameters around 700 nm. Ethanol as solvent was also used to produce a composite formed by BSA adsorbed at the surface of lactose by electrostatic forces. No denaturation or significant conformational changes of the protein were observed, although an increase in the exposition of the lactose to the jet of the solution decreases the reproducibility of the method. Due to the absence of denaturation in the model protein, this new approach can be tested for the production of new formulations for dry powders for drug delivery systems.
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Zhang S, Kawakami K, Yamamoto M, Masaoka Y, Kataoka M, Yamashita S, Sakuma S. Coaxial electrospray formulations for improving oral absorption of a poorly water-soluble drug. Mol Pharm 2011; 8:807-13. [PMID: 21395264 DOI: 10.1021/mp100401d] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Development of oral dosage forms containing poorly water-soluble drugs is a major challenge in the pharmaceutical industry. This paper describes the use of coaxial electrospray deposition as a promising formulation technology for oral delivery of poorly water-soluble drugs. The technology produced core-shell particles composed of griseofulvin and poly(methacrylic acid-co-methyl methacrylate) (Eudragit L-100), with a diameter of around 1 μm. The drug phase was in an amorphous state when the griseofulvin core was coated with the Eudragit L-100 shell. The in vitro dissolution and in vivo oral absorption studies revealed that the core-shell formulation significantly improved dissolution and absorption behaviors, presumably because of a reduction in particle size, improvement in dispersity, and amorphization. Results demonstrated that coaxial electrospray deposition possesses great potential as novel formulation technology for enhancing oral absorption of poorly water-soluble drugs.
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Affiliation(s)
- Shaoling Zhang
- Biomaterials Center, National Institute for Materials Science, Tsukuba 305-0044, Japan
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34
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Rezvanpour A, Attia ABE, Wang CH. Enhancement of Particle Collection Efficiency in Electrohydrodynamic Atomization Process for Pharmaceutical Particle Fabrication. Ind Eng Chem Res 2010. [DOI: 10.1021/ie1009662] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alireza Rezvanpour
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576
| | - Amalina B. E. Attia
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576
| | - Chi-Hwa Wang
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576
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Peltonen L, Valo H, Kolakovic R, Laaksonen T, Hirvonen J. Electrospraying, spray drying and related techniques for production and formulation of drug nanoparticles. Expert Opin Drug Deliv 2010; 7:705-19. [PMID: 20345326 DOI: 10.1517/17425241003716802] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
IMPORTANCE OF THE FIELD Spray drying and electrospraying are two widely used liquid atomization-based techniques for production and formulation of drug nanoparticles. The importance of spray drying in particular has increased lately in the production of nanostructured microparticles. The value of the particles is that they maintain the properties of individual nanoparticles but they are micrometer sized. AREAS COVERED IN THIS REVIEW In this review the most important liquid atomization techniques, spray drying and electrospraying, are presented in detail, and a short introduction is presented for other methods, including the aerosol flow reactor method and spray congealing. WHAT THE READER WILL GAIN A description of the possible tailoring processes depending on the technique and process parameters. Different product properties can be achieved; for example, nanosuspensions or dry powder formulations may be produced. TAKE HOME MESSAGE The most important advantage of these techniques as compared with many other particle formation techniques is that the production of dried powders is possible without any extra drying step.
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Affiliation(s)
- Leena Peltonen
- University of Helsinki, Division of Pharmaceutical Technology, PO Box 56, 00014 Helsinki Finland.
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36
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Garay I, Pocheville A, Madariaga L. Polymeric microparticles prepared by supercritical antisolvent precipitation. POWDER TECHNOL 2010. [DOI: 10.1016/j.powtec.2009.09.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Huang HH, He CL, Wang HS, Mo XM. Preparation of core-shell biodegradable microfibers for long-term drug delivery. J Biomed Mater Res A 2009; 90:1243-51. [DOI: 10.1002/jbm.a.32543] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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38
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Valo H, Peltonen L, Vehviläinen S, Karjalainen M, Kostiainen R, Laaksonen T, Hirvonen J. Electrospray encapsulation of hydrophilic and hydrophobic drugs in poly(L-lactic acid) nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2009; 5:1791-1798. [PMID: 19360725 DOI: 10.1002/smll.200801907] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
An electrospray method is developed for preparation of beclomethasone-dipropionate- and salbutamol-sulfate-loaded biodegradable poly(L-lactic acid) nanoparticles. Different set-up parameters for electrospraying are examined on particle size, and preparation conditions are optimized for producing spherical-drug-loaded nanoscale particles by controllable processing parameters. Polylactide (PLA)-drug nanoparticles with average diameters of around 200 nm are achieved in a stable cone-jet mode with a flow rate of 4 microL min(-1), polymer concentration of 1%, and ammonium hydroxide content of 0.05%. Morphology and size of the drug-polymer nanoparticles are analyzed by scanning electron microscopy and transmission electron microscopy. Changes in the crystallinity of the PLA polymer and the model drugs are detected by X-ray powder diffraction, and the absence of molecular interactions are confirmed by thermal analyses. The results indicate clearly that electrospraying is a potential method for producing polymeric nanoparticles and for encapsulating both hydrophilic and hydrophobic drugs efficiently into the nanoparticles.
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Affiliation(s)
- Hanna Valo
- Division of Pharmaceutical Technology, FIN-00014, University of Helsinki, Finland.
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Meng F, Jiang Y, Sun Z, Yin Y, Li Y. Electrohydrodynamic liquid atomization of biodegradable polymer microparticles: Effect of electrohydrodynamic liquid atomization variables on microparticles. J Appl Polym Sci 2009. [DOI: 10.1002/app.30107] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Yubing Xie, Castracane J. High-voltage, electric field-driven micro/nanofabrication for polymeric drug delivery systems. ACTA ACUST UNITED AC 2009; 28:23-30. [DOI: 10.1109/memb.2008.931013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Jaworek A. Electrostatic micro- and nanoencapsulation and electroemulsification: A brief review. J Microencapsul 2008; 25:443-68. [DOI: 10.1080/02652040802049109] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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