A Simple Non-Embedded Single Capillary Device for On-Demand Complex Emulsion Formation
This study includes an examination of the design, fabrication, and experimentation of a rudimentary droplet generator. The device has potential applications in on-demand double and higher-order emulsions as well as tailored emulsions with numerous cores. The phenomenon of a pendant double droplet cr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-02-01
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| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/15/2/239 |
| _version_ | 1797297503375196160 |
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| author | Mohammad Mahdi Karim Khani Mehrnaz Oveysi Vahid Bazargan Marco Marengo |
| author_facet | Mohammad Mahdi Karim Khani Mehrnaz Oveysi Vahid Bazargan Marco Marengo |
| author_sort | Mohammad Mahdi Karim Khani |
| collection | DOAJ |
| description | This study includes an examination of the design, fabrication, and experimentation of a rudimentary droplet generator. The device has potential applications in on-demand double and higher-order emulsions as well as tailored emulsions with numerous cores. The phenomenon of a pendant double droplet creation is observed when an inner phase is transported through a capillary, while a middle phase envelops the external surface of the capillary. This leads to the occurrence of a pinching-off process at the tip of the pulled capillary. Following this, the double droplet is introduced into a container that is filled with the outer phase. The present study examines the force equilibrium throughout the droplet break-up process and aims to forecast the final morphology of the droplets within the container by considering the impact of interfacial tension ratios. The shell thickness in a core–shell formation can be calculated based on the inner and middle phase flow rates as well as the middle droplet formation period. The present platform, which enables the simple production of double and higher emulsions, exhibits promising prospects for the controlled manufacturing of complex emulsions. This technology holds potential for various applications, including the experimental exploration of collision behavior or electro-hydrodynamics in emulsions as well as millimeter-size engineered microparticle fabrication. |
| first_indexed | 2024-03-07T22:21:15Z |
| format | Article |
| id | doaj.art-ca98dbd2d5e0403d93fe70d326d379a4 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-07T22:21:15Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-ca98dbd2d5e0403d93fe70d326d379a42024-02-23T15:27:44ZengMDPI AGMicromachines2072-666X2024-02-0115223910.3390/mi15020239A Simple Non-Embedded Single Capillary Device for On-Demand Complex Emulsion FormationMohammad Mahdi Karim Khani0Mehrnaz Oveysi1Vahid Bazargan2Marco Marengo3School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 4399-57131, IranSchool of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 4399-57131, IranSchool of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 4399-57131, IranDepartment of Civil Engineering and Architecture, University of Pavia, 27100 Pavia, ItalyThis study includes an examination of the design, fabrication, and experimentation of a rudimentary droplet generator. The device has potential applications in on-demand double and higher-order emulsions as well as tailored emulsions with numerous cores. The phenomenon of a pendant double droplet creation is observed when an inner phase is transported through a capillary, while a middle phase envelops the external surface of the capillary. This leads to the occurrence of a pinching-off process at the tip of the pulled capillary. Following this, the double droplet is introduced into a container that is filled with the outer phase. The present study examines the force equilibrium throughout the droplet break-up process and aims to forecast the final morphology of the droplets within the container by considering the impact of interfacial tension ratios. The shell thickness in a core–shell formation can be calculated based on the inner and middle phase flow rates as well as the middle droplet formation period. The present platform, which enables the simple production of double and higher emulsions, exhibits promising prospects for the controlled manufacturing of complex emulsions. This technology holds potential for various applications, including the experimental exploration of collision behavior or electro-hydrodynamics in emulsions as well as millimeter-size engineered microparticle fabrication.https://www.mdpi.com/2072-666X/15/2/239double emulsioncomplex emulsioncapillary |
| spellingShingle | Mohammad Mahdi Karim Khani Mehrnaz Oveysi Vahid Bazargan Marco Marengo A Simple Non-Embedded Single Capillary Device for On-Demand Complex Emulsion Formation Micromachines double emulsion complex emulsion capillary |
| title | A Simple Non-Embedded Single Capillary Device for On-Demand Complex Emulsion Formation |
| title_full | A Simple Non-Embedded Single Capillary Device for On-Demand Complex Emulsion Formation |
| title_fullStr | A Simple Non-Embedded Single Capillary Device for On-Demand Complex Emulsion Formation |
| title_full_unstemmed | A Simple Non-Embedded Single Capillary Device for On-Demand Complex Emulsion Formation |
| title_short | A Simple Non-Embedded Single Capillary Device for On-Demand Complex Emulsion Formation |
| title_sort | simple non embedded single capillary device for on demand complex emulsion formation |
| topic | double emulsion complex emulsion capillary |
| url | https://www.mdpi.com/2072-666X/15/2/239 |
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