1
|
Tkachenko V, Coppola S, Vespini V, Tammaro D, Maffettone PL, Ferraro P, Grilli S. Oscillation Dynamics of Dielectric Polymer Droplets during Electrohydrodynamic Jetting in a Wide Range of Viscosities. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:18403-18409. [PMID: 38055972 DOI: 10.1021/acs.langmuir.3c02566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
The electrohydrodynamic (EHD) jetting of fluids is used for several applications such as inkjet printing, atomization of analyte in mass spectrometry, liquid metal alloy ion sources, and electrospinning of polymer fibers. Historically, the bulk of research has focused on nonviscous, highly conductive fluids which are most suitable for EHD spray and printing, while there is relatively little experimental work on EHD jetting of highly viscous liquid dielectrics. We studied the dynamics of oscillation and pulsating jetting from a suspended drop of polydimethylsiloxane (PDMS) polymers in an electric field, with particular attention to the viscosity dependence of the oscillation period and meniscus elongation and contraction time over a wide viscosity range (102-105 cSt). The reported results could help the appropriate design of EHD processes and may open new possibilities for the rheological characterization of liquid polymers using small volumes at the scale of nanoliters.
Collapse
Affiliation(s)
- Volodymyr Tkachenko
- Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), Pozzuoli, NA 80078, Italy
| | - Sara Coppola
- Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), Pozzuoli, NA 80078, Italy
| | - Veronica Vespini
- Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), Pozzuoli, NA 80078, Italy
| | - Daniele Tammaro
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Pier Luca Maffettone
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Pietro Ferraro
- Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), Pozzuoli, NA 80078, Italy
| | - Simonetta Grilli
- Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), Pozzuoli, NA 80078, Italy
| |
Collapse
|
2
|
Molecular dynamics simulation of ethanol electrohydrodynamic atomization: Microscopic mechanism of the operating parameter effects. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
|
3
|
Shi W, Bell S, Iyer H, Brenden CK, Zhang Y, Kim S, Park I, Bashir R, Sweedler J, Vlasov Y. Integrated silicon microfluidic chip for picoliter-scale analyte segmentation and microscale printing for mass spectrometry imaging. LAB ON A CHIP 2022; 23:72-80. [PMID: 36477760 PMCID: PMC9764807 DOI: 10.1039/d2lc00688j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 11/12/2022] [Indexed: 06/17/2023]
Abstract
A silicon single-chip microfluidics system that integrates microscale fluidic channels, an analyte segmentation device, and a nozzle for electrohydrodynamic-assisted printing is designed for hyphenation with MALDI mass spectrometry (MS) imaging. A miniaturized T-junction segments analytes into monodisperse picoliter oil-isolated compartments. The printing nozzle deposits generated droplets one-by-one into an array on a conductive substrate without splitting or coalescing. Virtually single-shot MS analysis is enabled due to the ultrasmall droplet volumes and highly localized printing. The signal-to-noise ratio indicates that detection limits at the attomole level are achieved for γ-aminobutyric acid.
Collapse
Affiliation(s)
- Weihua Shi
- Department of Electrical and Computer Engineering, University of Illinois Urbana Champaign, IL 61801, USA.
| | - Sara Bell
- Department of Chemistry and the Beckman Institute, University of Illinois Urbana Champaign, IL 61801, USA
| | - Hrishikesh Iyer
- Department of Electrical and Computer Engineering, University of Illinois Urbana Champaign, IL 61801, USA.
| | | | - Yan Zhang
- Department of Electrical and Computer Engineering, University of Illinois Urbana Champaign, IL 61801, USA.
| | - Sungho Kim
- Department of Electrical and Computer Engineering, University of Illinois Urbana Champaign, IL 61801, USA.
| | - Insu Park
- Department of Bioengineering, University of Illinois Urbana Champaign, IL 61801, USA
| | - Rashid Bashir
- Department of Bioengineering, University of Illinois Urbana Champaign, IL 61801, USA
| | - Jonathan Sweedler
- Department of Chemistry and the Beckman Institute, University of Illinois Urbana Champaign, IL 61801, USA
| | - Yurii Vlasov
- Department of Electrical and Computer Engineering, University of Illinois Urbana Champaign, IL 61801, USA.
- Department of Bioengineering, University of Illinois Urbana Champaign, IL 61801, USA
| |
Collapse
|
4
|
Yang S, Wang Z, Kong Q, Li B, Wang J. Visualization on electrified micro-jet instability from Taylor cone in electrohydrodynamic atomization. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2021.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
5
|
Charles APR, Jin TZ, Mu R, Wu Y. Electrohydrodynamic processing of natural polymers for active food packaging: A comprehensive review. Compr Rev Food Sci Food Saf 2021; 20:6027-6056. [PMID: 34435448 DOI: 10.1111/1541-4337.12827] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 07/14/2021] [Accepted: 07/26/2021] [Indexed: 12/21/2022]
Abstract
The active packaging materials fabricated using natural polymers is increasing in recent years. Electrohydrodynamic processing has drawn attention in active food packaging due to its potential in fabricating materials with advanced structural and functional properties. These materials have the significant capability in enhancing food's quality, safety, and shelf-life. Through electrospinning and electrospray, fibers and particles are encapsulated with bioactive compounds for active packaging applications. Understanding the principle behind electrohydrodynamics provides fundamentals in modulating the material's physicochemical properties based on the operating parameters. This review provides a deep understanding of electrospray and electrospinning, along with their advantages and recent innovations, from food packaging perspectives. The natural polymers suitable for developing active packaging films and coatings through electrohydrodynamics are intensely focused. The critical properties of the packaging system are discussed with characterization techniques. Furthermore, the limitations and prospects for natural polymers and electrohydrodynamic processing in active packaging are summarized.
Collapse
Affiliation(s)
- Anto Pradeep Raja Charles
- Food and Animal Sciences Program, Department of Agricultural and Environmental Sciences, Tennessee State University, Nashville, Tennessee, USA
| | - Tony Z Jin
- U.S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pennsylvania, USA
| | - Richard Mu
- Interdisciplinary Graduate Engineering Research Institute, Tennessee State University, Nashville, Tennessee, USA
| | - Ying Wu
- Food and Animal Sciences Program, Department of Agricultural and Environmental Sciences, Tennessee State University, Nashville, Tennessee, USA
| |
Collapse
|
6
|
|
7
|
Rentería‐Ortega M, Salgado‐Cruz MDLP, Morales‐Sánchez E, Alamilla‐Beltrán L, Valdespino‐León M, Calderón‐Domínguez G. Glucose oxidase release of stressed chia mucilage‐sodium alginate capsules prepared by electrospraying. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15484] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Minerva Rentería‐Ortega
- Departamento de Ingeniería Bioquímica Escuela Nacional de Ciencias BiológicasInstituto Politécnico Nacional Ciudad de México México
| | - Ma de la Paz Salgado‐Cruz
- Departamento de Ingeniería Bioquímica Escuela Nacional de Ciencias BiológicasInstituto Politécnico Nacional Ciudad de México México
- Consejo Nacional de Ciencia y Tecnología (CONACYT) Ciudad de México México
| | | | - Liliana Alamilla‐Beltrán
- Departamento de Ingeniería Bioquímica Escuela Nacional de Ciencias BiológicasInstituto Politécnico Nacional Ciudad de México México
| | - Mariana Valdespino‐León
- Departamento de Ingeniería Bioquímica Escuela Nacional de Ciencias BiológicasInstituto Politécnico Nacional Ciudad de México México
| | - Georgina Calderón‐Domínguez
- Departamento de Ingeniería Bioquímica Escuela Nacional de Ciencias BiológicasInstituto Politécnico Nacional Ciudad de México México
| |
Collapse
|
8
|
Xu XY, Xu Z, Wang XD, Qin SC, Qian YW, Wang LD, Liu JS. Loading a High-Viscous Droplet via the Cone-Shaped Liquid Bridge Induced by an Electrostatic Force. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:2334-2340. [PMID: 33529533 DOI: 10.1021/acs.langmuir.0c03154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In transfer printing, the loaded droplet on the probe has a significant influence on the dispensing resolution. A suitable loading approach for a high-viscous liquid is highly required. Herein, a novel electrostatic loading method is presented, in which the main aim is to control precisely the formation and breaking of a cone-shaped liquid bridge. An experimental device is developed. The influence of electrical and geometric parameters on the feature size of the liquid bridge is investigated in detail. In the formation of the liquid bridge, the increase of voltage or the decrease of the air gap can enhance the electric field intensity, thus reducing the formation period and increasing the initial cone tip diameter of the liquid cone. After the liquid bridge is formed, both the circuit current implying the liquid wetted area on the probe surface and the lifting velocity of the probe are utilized to further regulate the volume of the loaded droplet. Loaded droplets ranging from 60 to 600 pL are obtained via the method with a standard deviation of 4 to 30 pL. Moreover, a dot array is transferred with different loaded droplets. The minimum diameter of the printed dots is about 140 μm with a variation less than 5%. The advantages include the reduced risk of contamination, the droplet-size independent of the size of the probe, and the low cost of the device.
Collapse
Affiliation(s)
- Xiao-Yu Xu
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
| | - Zheng Xu
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
| | - Xiao-Dong Wang
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
| | - Shao-Chun Qin
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
| | - Yan-Wen Qian
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
| | - Li-Ding Wang
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
| | - Jun-Shan Liu
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
| |
Collapse
|
9
|
Ruihan X, Weijie B, Zhihai W, Yaohong W. Start-up stage with improved resolution for an electric field-assisted fused deposition. RSC Adv 2021; 11:7397-7404. [PMID: 35423235 PMCID: PMC8694952 DOI: 10.1039/d0ra07795j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 01/29/2021] [Indexed: 11/29/2022] Open
Abstract
Electric field-assisted fused deposition modeling (E-FDM) is a promising technique in the field of 3D printing. This paper studies the start-up stage of the printing, which is a process of liquid gradually deforming and making an initial contact with the substrate under the action of electric stress. Polycaprolactone, a popular material for biomedicine, is selected as the printing material. With a home-built E-FDM system, the nozzle-to-substrate distance and the nozzle and substrate temperatures are all held steady. With a photography system, the process of meniscus deformation is recorded. And by image processing methods, the meniscus length and the volume of liquid at the nozzle can be obtained. At a set of initial liquid volumes (V i), nozzle voltage is ramped to a fixed value at a fixed rate. The effects of V i on the meniscus deformation during the start-up stage of the printing are examined. For sufficiently small V i, the meniscus deforms into a conical (Taylor cone) shape, and a fine jet with a diameter much smaller than the nozzle diameter appears. For sufficiently large V i, the meniscus exhibits a spindle shape when it touches the substrate. At an intermediate V i, a Taylor cone is formed, tending to eject a fine jet. After a short period of stagnation or even a slight retraction, no liquid is emitted. Through this study, it is suggested that for high-resolution printing, ramping the voltage at small V i may be preferable. This proposition is preliminarily confirmed in a direct writing test.
Collapse
Affiliation(s)
- Xu Ruihan
- Faculty of Information, Beijing University of Technology Beijing 100124 China
- Key Laboratory of Optoelectronics Technology, Beijing University of Technology Beijing 100124 China
| | - Bao Weijie
- Faculty of Information, Beijing University of Technology Beijing 100124 China
- Key Laboratory of Optoelectronics Technology, Beijing University of Technology Beijing 100124 China
| | - Wang Zhihai
- Faculty of Information, Beijing University of Technology Beijing 100124 China
- Key Laboratory of Optoelectronics Technology, Beijing University of Technology Beijing 100124 China
| | - Wang Yaohong
- Center for Applied Mathematics, Tianjin University Tianjin 300072 China
| |
Collapse
|
10
|
Zhang W, Wang J, Yang S, Li B, Yu K, Wang D, Yongphet P, Xu H. Dynamics of bubble formation on submerged capillaries in a non-uniform direct current electric field. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125512] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
11
|
Montanero JM, Gañán-Calvo AM. Dripping, jetting and tip streaming. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2020; 83:097001. [PMID: 32647097 DOI: 10.1088/1361-6633/aba482] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Dripping, jetting and tip streaming have been studied up to a certain point separately by both fluid mechanics and microfluidics communities, the former focusing on fundamental aspects while the latter on applications. Here, we intend to review this field from a global perspective by considering and linking the two sides of the problem. First, we present the theoretical model used to study interfacial flows arising in droplet-based microfluidics, paying attention to three elements commonly present in applications: viscoelasticity, electric fields and surfactants. We review both classical and current results of the stability of jets affected by these elements. Mechanisms leading to the breakup of jets to produce drops are reviewed as well, including some recent advances in this field. We also consider the relatively scarce theoretical studies on the emergence and stability of tip streaming in open systems. Second, we focus on axisymmetric microfluidic configurations which can operate on the dripping and jetting modes either in a direct (standard) way or via tip streaming. We present the dimensionless parameters characterizing these configurations, the scaling laws which allow predicting the size of the resulting droplets and bubbles, as well as those delimiting the parameter windows where tip streaming can be found. Special attention is paid to electrospray and flow focusing, two of the techniques more frequently used in continuous drop production microfluidics. We aim to connect experimental observations described in this section of topics with fundamental and general aspects described in the first part of the review. This work closes with some prospects at both fundamental and practical levels.
Collapse
Affiliation(s)
- J M Montanero
- Depto. de Ingeniería Mecánica, Energética y de los Materiales and Instituto de Computación Científica Avanzada (ICCAEx), Universidad de Extremadura, E-06006 Badajoz, Spain
| | - A M Gañán-Calvo
- Depto. de Ingeniería Aeroespacial y Mecánica de Fluidos, Universidad de Sevilla, E-41092 Sevilla, Spain
| |
Collapse
|
12
|
Wang Z, Wang Q, Zhang Y, Jiang Y, Xia L. Formation of mono-dispersed droplets with electric periodic dripping regime in electrohydrodynamic (EHD) atomization. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2020.03.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
13
|
EHD effects on periodic bubble formation and coalescence in ethanol under non-uniform electric field. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2019.115451] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
14
|
Castillo-Orozco E, Kar A, Kumar R. Non-dimensional groups for electrospray modes of highly conductive and viscous nanoparticle suspensions. Sci Rep 2020; 10:4405. [PMID: 32157135 PMCID: PMC7064495 DOI: 10.1038/s41598-020-61323-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/18/2019] [Indexed: 11/09/2022] Open
Abstract
Multiple modes of atomization in electrosprays are affected by viscosity, surface tension and electrical conductivity of the semiconductor nanosuspensions. While the effect of gravity is dominant in the dripping mode, the electric field degenerates the electrospray mechanism into a microdripping mode that can potentially allow the deposition of semiconductor nanodots on a substrate. Drop size and frequency of droplet formation are obtained as functions of non-dimensional parameters, which agree well with experimental data. The analysis shows that it is possible to produce the desired size and frequency of ejection of monodisperse droplets by manipulating the electrode voltage for any nanosuspension.
Collapse
Affiliation(s)
- Eduardo Castillo-Orozco
- Escuela Superior Politecnica del Litoral, ESPOL, Facultad en Ingenieria Mecanica y Ciencias de la Produccion, Campus Gustavo Galindo, Km. 30.5 Via Perimetral, Guayaquil, P.O. Box 09-01-5863, Ecuador
| | - Aravinda Kar
- CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Blvd, Orlando, Florida, 32816, USA
| | - Ranganathan Kumar
- Department of Mechanical and Aerospace Engineering, University of Central Florida, 4000 Central Florida Blvd, Orlando, Florida, 32816, USA.
| |
Collapse
|
15
|
Guerrero J, Chang YW, Fragkopoulos AA, Fernandez-Nieves A. Capillary-Based Microfluidics-Coflow, Flow-Focusing, Electro-Coflow, Drops, Jets, and Instabilities. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1904344. [PMID: 31663270 DOI: 10.1002/smll.201904344] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/13/2019] [Indexed: 06/10/2023]
Abstract
Capillary-based microfluidics is a great technique to produce monodisperse and complex emulsions and particulate suspensions. In this review, the current understanding of drop and jet formation in capillary-based microfluidic devices for two primary flow configurations, coflow and flow-focusing is summarized. The experimental and theoretical description of fluid instabilities is discussed and conditions for controlled drop breakup in different modes of drop generation are provided. Current challenges in drop breakup with low interfacial tension systems and recent progress in overcoming drop size limitations using electro-coflow are addressed. In each scenario, the physical mechanisms for drop breakup are revisited, and simple scaling arguments proposed in the literature are introduced.
Collapse
Affiliation(s)
- Josefa Guerrero
- Department of Chemistry and Physics, Augusta University, Augusta, GA, 30912, USA
| | - Ya-Wen Chang
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX, 79409, USA
| | - Alexandros A Fragkopoulos
- Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, 37077, Göttingen, Germany
| | - Alberto Fernandez-Nieves
- School of Physics, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- Department of Condensed Matter Physics, University of Barcelona, 08028, Barcelona, Spain
- ICREA-Institució Caalana de Recerca i Estudis Avançats, 08010, Barcelona, Spain
| |
Collapse
|
16
|
Tian X, Kong T, Zhu P, Kang Z, Lei L, Tang X, Wang L. Engineering embolic microparticles from a periodically-pulsating charged liquid meniscus. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.02.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|