Solution blow spinning of polymer/nanocomposite micro-/nanofibers with tunable diameters and morphologies using a gas dynamic virtual nozzle
Uniform endless fibers are ubiquitous and their applications range from functional textiles over biomedical engineering to high-performance filtering and drug delivery systems. Here, we report a new method for the direct, reproducible fabrication of uniform polymer and composite micro-/nanofibers us...
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| Veröffentlicht in: | Scientific reports 2019-10, Vol.9 (1), p.14297-10, Article 14297 |
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| creator | Vasireddi, Ramakrishna Kruse, Joscha Vakili, Mohammad Kulkarni, Satishkumar Keller, Thomas F. Monteiro, Diana C. F. Trebbin, Martin |
| description | Uniform endless fibers are ubiquitous and their applications range from functional textiles over biomedical engineering to high-performance filtering and drug delivery systems. Here, we report a new method for the direct, reproducible fabrication of uniform polymer and composite micro-/nanofibers using a microfluidic gas flow focusing nozzle (Gas Dynamic Virtual Nozzle (GDVN)) relinquishing the need for external fiber pulling mechanisms. Compared to other methods, this technique is inexpensive, user-friendly and permits precise fiber diameter control (~250 nm to ~15 µm), high production rate (m/s-range) and direct fiber deposition without clogging due to stable, gas-focused jetting. Control over shape (flat or round) and surface patterning are achieved by simply tuning the air pressure and polymer concentration. The main thinning process happens after the polymer exits the device and is, therefore, mostly independent of the nozzle’s internal geometry. Nevertheless, the lithography-based device design is versatile, allowing for precise flow-field control for operation stability as well as particle alignment control. As an example, we demonstrate the successful production of endless hematite nanocomposite fibers which highlights this technology’s exciting possibilities that can lead to the fabrication of multifunctional/stimuli-responsive fibers with thermal and electrical conductivity, magnetic properties and enhanced mechanical stability. |
| doi_str_mv | 10.1038/s41598-019-50477-6 |
| format | Article |
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Control over shape (flat or round) and surface patterning are achieved by simply tuning the air pressure and polymer concentration. The main thinning process happens after the polymer exits the device and is, therefore, mostly independent of the nozzle’s internal geometry. Nevertheless, the lithography-based device design is versatile, allowing for precise flow-field control for operation stability as well as particle alignment control. As an example, we demonstrate the successful production of endless hematite nanocomposite fibers which highlights this technology’s exciting possibilities that can lead to the fabrication of multifunctional/stimuli-responsive fibers with thermal and electrical conductivity, magnetic properties and enhanced mechanical stability.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-019-50477-6</identifier><identifier>PMID: 31586141</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>101/62 ; 142/126 ; 639/301/357/551 ; 639/301/923/1028 ; 639/301/930/1032 ; Composite materials ; Drug delivery ; Electrical conductivity ; Fabrication ; Fibers ; Humanities and Social Sciences ; Magnetic properties ; Microfluidics ; multidisciplinary ; Nanocomposites ; Polymers ; Science ; Science (multidisciplinary) ; Textiles</subject><ispartof>Scientific reports, 2019-10, Vol.9 (1), p.14297-10, Article 14297</ispartof><rights>The Author(s) 2019</rights><rights>2019. 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Compared to other methods, this technique is inexpensive, user-friendly and permits precise fiber diameter control (~250 nm to ~15 µm), high production rate (m/s-range) and direct fiber deposition without clogging due to stable, gas-focused jetting. Control over shape (flat or round) and surface patterning are achieved by simply tuning the air pressure and polymer concentration. The main thinning process happens after the polymer exits the device and is, therefore, mostly independent of the nozzle’s internal geometry. Nevertheless, the lithography-based device design is versatile, allowing for precise flow-field control for operation stability as well as particle alignment control. 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F.</au><au>Trebbin, Martin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Solution blow spinning of polymer/nanocomposite micro-/nanofibers with tunable diameters and morphologies using a gas dynamic virtual nozzle</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><addtitle>Sci Rep</addtitle><date>2019-10-04</date><risdate>2019</risdate><volume>9</volume><issue>1</issue><spage>14297</spage><epage>10</epage><pages>14297-10</pages><artnum>14297</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>Uniform endless fibers are ubiquitous and their applications range from functional textiles over biomedical engineering to high-performance filtering and drug delivery systems. Here, we report a new method for the direct, reproducible fabrication of uniform polymer and composite micro-/nanofibers using a microfluidic gas flow focusing nozzle (Gas Dynamic Virtual Nozzle (GDVN)) relinquishing the need for external fiber pulling mechanisms. Compared to other methods, this technique is inexpensive, user-friendly and permits precise fiber diameter control (~250 nm to ~15 µm), high production rate (m/s-range) and direct fiber deposition without clogging due to stable, gas-focused jetting. Control over shape (flat or round) and surface patterning are achieved by simply tuning the air pressure and polymer concentration. The main thinning process happens after the polymer exits the device and is, therefore, mostly independent of the nozzle’s internal geometry. Nevertheless, the lithography-based device design is versatile, allowing for precise flow-field control for operation stability as well as particle alignment control. 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| subjects | 101/62 142/126 639/301/357/551 639/301/923/1028 639/301/930/1032 Composite materials Drug delivery Electrical conductivity Fabrication Fibers Humanities and Social Sciences Magnetic properties Microfluidics multidisciplinary Nanocomposites Polymers Science Science (multidisciplinary) Textiles |
| title | Solution blow spinning of polymer/nanocomposite micro-/nanofibers with tunable diameters and morphologies using a gas dynamic virtual nozzle |
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