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Hu A, Huang Y, Chen Z, Yang Y, Xu Y, Wang T. Binder Jetting Additive Manufacturing: Spreading and Permeation of Multiple Micron Droplets in Porous Media. ADVANCED THEORY AND SIMULATIONS 2022. [DOI: 10.1002/adts.202200747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ankai Hu
- School of Mechanical and Automotive Engineering South China University of Technology Guangzhou 510641 China
| | - Yanlu Huang
- School of Mechanical and Automotive Engineering South China University of Technology Guangzhou 510641 China
| | - Zhiyi Chen
- School of Mechanical and Automotive Engineering South China University of Technology Guangzhou 510641 China
| | - Yongqiang Yang
- School of Mechanical and Automotive Engineering South China University of Technology Guangzhou 510641 China
| | - Yuxin Xu
- School of Mechanical and Automotive Engineering South China University of Technology Guangzhou 510641 China
| | - Tianyu Wang
- School of Mechanical and Automotive Engineering South China University of Technology Guangzhou 510641 China
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2
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Sahoo PC, Senapati JR, Rana BK. Computational and Analytical Investigation of Droplet Impingement and Spreading Dynamics around the Right Circular Cone. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:14891-14908. [PMID: 36399123 DOI: 10.1021/acs.langmuir.2c02567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Numerical computations are performed to elucidate the water droplet impingement and spreading dynamics around a small right-angled circular cone suspended in the air. An axisymmetric model employing the volume of fluid approach describes the engrossing impact, spreading, and detachment behavior of droplets around the solid substrate. Influence of various dimensionless pertinent factors, like Weber number (We), contact angle (θ), Ohnesorge number (Oh), Bond number (Bo), and cone base-to-droplet diameter ratio (Dc/Do) on maximum deformation factor (βf) is demonstrated thoroughly to understand droplets' hydrodynamic and morphological behavior. An increase in We shortens the droplet's interaction duration with the substrate for a particular value of θ, Oh, and Dc/Do. Moreover, the interaction time reduces drastically with the increase of Oh when θ, We, and Dc/Do remain constant. Moreover, correlations are developed for both free (We = 0) and forced (We ≠ 0) falling of the droplet to determine the deformation factor as a function of various relevant dimensionless parameters, which operates satisfactorily within 0.8% of the computational data. Lastly, the maximum deformation factor for the droplet is calculated analytically, and it demonstrates an extremely good matching with simulated data.
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Affiliation(s)
- Prakasha Chandra Sahoo
- Department of Mechanical Engineering, National Institute of Technology, Rourkela769008, India
| | - Jnana Ranjan Senapati
- Department of Mechanical Engineering, National Institute of Technology, Rourkela769008, India
| | - Basanta Kumar Rana
- School of Mechanical Engineering, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar751024, India
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3
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Schemberg J, Abbassi AE, Lindenbauer A, Chen LY, Grodrian A, Nakos X, Apte G, Khan N, Kraupner A, Nguyen TH, Gastrock G. Synthesis of Biocompatible Superparamagnetic Iron Oxide Nanoparticles (SPION) under Different Microfluidic Regimes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:48011-48028. [PMID: 36223272 PMCID: PMC9615998 DOI: 10.1021/acsami.2c13156] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Superparamagnetic iron oxide nanoparticles (SPION) have a great potential in both diagnostic and therapeutic applications as they provide contrast in magnetic resonance imaging techniques and allow magnetic hyperthermia and drug delivery. Though various types of SPION are commercially available, efforts to improve the quality of SPION are highly in demand. Here, we describe a strategy for optimization of SPION synthesis under microfluidics using the coprecipitation approach. Synthesis parameters such as temperature, pH, iron salt concentration, and coating materials were investigated in continuous and segmented flows. Continuous flow allowed synthesizing particles of a smaller size and higher stability than segmented flow, while both conditions improved the quality of particles compared to batch synthesis. The most stable particles were obtained at a synthesis condition of 6.5 M NH4OH base, iron salt (Fe2+/Fe3+) concentration ratio of 4.3/8.6, carboxymethyl dextran coating of 20 mg/mL, and temperature of 70 °C. The synthesized SPION exhibited a good efficiency in labeling of human platelets and did not impair cells. Our study under flow conditions provides an optimal protocol for the synthesis of better and biocompatible SPION that contributes to the development of nanoparticles for medical applications.
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Affiliation(s)
- Jörg Schemberg
- Institute
for Bioprocessing and Analytical Measurement Techniques (iba), 37308Heiligenstadt, Germany
| | - Abdelouahad El Abbassi
- Institute
for Bioprocessing and Analytical Measurement Techniques (iba), 37308Heiligenstadt, Germany
| | - Annerose Lindenbauer
- Institute
for Bioprocessing and Analytical Measurement Techniques (iba), 37308Heiligenstadt, Germany
| | - Li-Yu Chen
- Institute
for Bioprocessing and Analytical Measurement Techniques (iba), 37308Heiligenstadt, Germany
- Department
of Infection Biology, Leibniz Institute
for Natural Product Research and Infection Biology, 07745Jena, Germany
| | - Andreas Grodrian
- Institute
for Bioprocessing and Analytical Measurement Techniques (iba), 37308Heiligenstadt, Germany
| | - Xenia Nakos
- Institute
for Bioprocessing and Analytical Measurement Techniques (iba), 37308Heiligenstadt, Germany
| | - Gurunath Apte
- Institute
for Bioprocessing and Analytical Measurement Techniques (iba), 37308Heiligenstadt, Germany
- Institute
of Nanotechnology (INT) and Karlsruhe Nano Micro Facility, Karlsruhe Institute of Technology, 76131Karlsruhe, Germany
| | - Nida Khan
- Institute
for Bioprocessing and Analytical Measurement Techniques (iba), 37308Heiligenstadt, Germany
- Institute
for Chemistry and Biotechnology, Faculty of Mathematics and Natural
Sciences, Technische Universität
Ilmenau, 98694Ilmenau, Germany
| | | | - Thi-Huong Nguyen
- Institute
for Bioprocessing and Analytical Measurement Techniques (iba), 37308Heiligenstadt, Germany
- Institute
for Chemistry and Biotechnology, Faculty of Mathematics and Natural
Sciences, Technische Universität
Ilmenau, 98694Ilmenau, Germany
| | - Gunter Gastrock
- Institute
for Bioprocessing and Analytical Measurement Techniques (iba), 37308Heiligenstadt, Germany
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Danalou SZ, Ding XF, Zhu N, Emady HN, Zhang L. 4D study of liquid binder penetration dynamics in pharmaceutical powders using synchrotron X-ray micro computed tomography. Int J Pharm 2022; 627:122192. [PMID: 36116689 DOI: 10.1016/j.ijpharm.2022.122192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/28/2022] [Accepted: 09/06/2022] [Indexed: 10/31/2022]
Abstract
The properties of pharmaceutical powders, and the liquid binder, directly influence the penetration behavior in the wet granulation process of the pharmaceutical industry. Conventional methods encounter challenges in understanding this fast process. In this work, an emerging synchrotron-based X-ray imaging technique (having fast imaging capability) was employed to investigate the internal process from 2D and 3D to real-time (in-situ with ms time intervals) 3D (also considered 4D) perspectives. Two commonly used excipients (lactose monohydrate (LMH) and microcrystalline cellulose (MCC)) were used to make binary mixtures with acetaminophen (APAP) as the active pharmaceutical ingredient (API). Isopropanol and water were employed as liquid binders in the single droplet impact method. Results showed that for most of the mixtures, the porosity increased at higher fractions of APAP. MCC mixtures experienced less agglomeration and more uniform pore distribution than LMH ones, resulting in a faster droplet penetration with isopropanol. Moreover, the imbibition-spreading studies showed that isopropanol penetration in MCC powders followed more unidirectional vertical movement than horizontal spreading. Our results also demonstrated that simultaneous granulation of LMH with water resulted in much slower penetration. This study revealed that synchrotron X-ray imaging can investigate 3D internal pore structures and how they affect the quantitively real-time internal penetration dynamics.
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Affiliation(s)
- Sima Zeinali Danalou
- Department of Chemical and Biological Engineering, University of Saskatchewan, SK, Canada
| | - Xiao Fan Ding
- Department of Biomedical Engineering, University of Saskatchewan, SK, Canada
| | - Ning Zhu
- Department of Chemical and Biological Engineering, University of Saskatchewan, SK, Canada; Department of Biomedical Engineering, University of Saskatchewan, SK, Canada; Canadian Light Source Inc., SK, Canada
| | - Heather N Emady
- School for Engineering of Matter, Transport and Energy, Arizona State University, AZ, USA
| | - Lifeng Zhang
- Department of Chemical and Biological Engineering, University of Saskatchewan, SK, Canada.
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5
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Enhancing drop mixing in powder bed by alternative particle arrangements with contradictory hydrophilicity. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.104160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Castigliano M, Recupido F, Petala M, Kostoglou M, Caserta S, Karapantsios TD. Wetting of Dehydrated Hydrophilic Pseudomonas fluorescens Biofilms under the Action of External Body Forces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:10890-10901. [PMID: 34314173 PMCID: PMC8459453 DOI: 10.1021/acs.langmuir.1c00528] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Wetting of dehydrated Pseudomonas fluorescens biofilms grown on glass substrates by an external liquid is employed as a means to investigate the complex morphology of these biofilms along with their capability to interact with external fluids. The porous structure left behind after dehydration induces interesting droplet spreading on the external surface and imbibition into pores upon wetting. Static contact angles and volume loss by imbibition measured right upon droplet deposition indicate that biofilms of higher incubation times show a higher porosity and effective hydrophilicity. Furthermore, during subsequent rotation tests, using Kerberos device, these properties dictate a peculiar forced wetting/spreading behavior. As rotation speed increases a long liquid tail forms progressively at the rear part of the droplet, which stays pinned at all times, while only the front part of the droplet depins and spreads. Interestingly, the experimentally determined retention force for the onset of droplet sliding on biofilm external surface is lower than that on pure glass. An effort is made to describe such complex forced wetting phenomena by presenting apparent contact angles, droplet length, droplet shape contours, and edges position as obtained from detailed image analysis.
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Affiliation(s)
- Michela Castigliano
- Department
of Chemical, Materials and Industrial Production Engineering (DICMaPi), University of Naples Federico II, Piazzale V. Tecchio 80, 80125, Naples, Italy
| | - Federica Recupido
- Division
of Chemical Technology, School of Chemistry, Aristotle University of Thessaloniki, University Box 116, 54 124 Thessaloniki, Greece
| | - Maria Petala
- Department
of Civil Engineering, Aristotle University
of Thessaloniki, 54 124 Thessaloniki, Greece
| | - Margaritis Kostoglou
- Division
of Chemical Technology, School of Chemistry, Aristotle University of Thessaloniki, University Box 116, 54 124 Thessaloniki, Greece
| | - Sergio Caserta
- Department
of Chemical, Materials and Industrial Production Engineering (DICMaPi), University of Naples Federico II, Piazzale V. Tecchio 80, 80125, Naples, Italy
- CEINGE
Advanced Biotechnology, 80145 Naples, Italy
| | - Thodoris D. Karapantsios
- Division
of Chemical Technology, School of Chemistry, Aristotle University of Thessaloniki, University Box 116, 54 124 Thessaloniki, Greece
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Absorption of surfactant-laden droplets into porous media: A numerical study. J Colloid Interface Sci 2021; 597:149-159. [PMID: 33866208 DOI: 10.1016/j.jcis.2021.03.119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 01/26/2023]
Abstract
HYPOTHESIS Droplets can absorb into permeable substrates due to capillarity. It is hypothesized that the contact line dynamics influence this process and that an unpinned contact line results in slower absorption than a pinned contact line, since the contact area between the droplet and the substrate will decrease over time for the former. Furthermore, it is expected that surfactants can be used to accelerate the absorption. SIMULATIONS Lubrication theory is employed to model the droplet and Darcy's law is combined with the conservation law of mass to describe the absorption dynamics. For the surfactant transport, several convection-diffusion-adsorption equations are solved. FINDINGS It is found that moving contact lines result in a parabola-shaped wetted area and a slower absorption and a deeper penetration depth than pinned contact lines. The evolution of the penetration depth was quantitatively validated by comparison with two experimental studies from literature. Surfactants were shown to accelerate the absorption process, but only if their adsorption kinetics are slow compared to the absorption. Otherwise, all surfactant adsorbs onto the pore walls before reaching the wetting front, resulting in the same absorption rate as without surfactants. This behavior agrees with both experimental and analytical literature.
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8
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An experimental and numerical study of droplet spreading and imbibition on microporous membranes. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126191] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Suo S, Liu M, Gan Y. An LBM-PNM framework for immiscible flow: With applications to droplet spreading on porous surfaces. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115577] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Droplet Impact on Suspended Metallic Meshes: Effects of Wettability, Reynolds and Weber Numbers. FLUIDS 2020. [DOI: 10.3390/fluids5020081] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Liquid penetration analysis in porous media is of great importance in a wide range of applications such as ink jet printing technology, painting and textile design. This article presents an investigation of droplet impingement onto metallic meshes, aiming to provide insights by identifying and quantifying impact characteristics that are difficult to measure experimentally. For this purpose, an enhanced Volume-Of-Fluid (VOF) numerical simulation framework is utilised, previously developed in the general context of the OpenFOAM CFD Toolbox. Droplet impacts on metallic meshes are performed both experimentally and numerically with satisfactory degree of agreement. From the experimental investigation three main outcomes are observed—deposition, partial imbibition, and penetration. The penetration into suspended meshes leads to spectacular multiple jetting below the mesh. A higher amount of liquid penetration is linked to higher impact velocity, lower viscosity and larger pore size dimension. An estimation of the liquid penetration is given in order to evaluate the impregnation properties of the meshes. From the parametric analysis it is shown that liquid viscosity affects the adhesion characteristics of the drops significantly, whereas droplet break-up after the impact is mostly controlled by surface tension. Additionally, wettability characteristics are found to play an important role in both liquid penetration and droplet break-up below the mesh.
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11
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Arrabito G, Ferrara V, Ottaviani A, Cavaleri F, Cubisino S, Cancemi P, Ho YP, Knudsen BR, Hede MS, Pellerito C, Desideri A, Feo S, Pignataro B. Imbibition of Femtoliter-Scale DNA-Rich Aqueous Droplets into Porous Nylon Substrates by Molecular Printing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:17156-17165. [PMID: 31790261 DOI: 10.1021/acs.langmuir.9b02893] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This work presents the first reported imbibition mechanism of femtoliter (fL)-scale droplets produced by microchannel cantilever spotting (μCS) of DNA molecular inks into porous substrates (hydrophilic nylon). Differently from macroscopic or picoliter droplets, the downscaling to the fL-size leads to an imbibition process controlled by the subtle interplay of evaporation, spreading, viscosity, and capillarity, with gravitational forces being quasi-negligible. In particular, the minimization of droplet evaporation, surface tension, and viscosity allows for a reproducible droplet imbibition process. The dwell time on the nylon surface permits further tuning of the droplet lateral size, in accord with liquid ink diffusion mechanisms. The functionality of the printed DNA molecules is demonstrated at different imbibed oligonucleotide concentrations by hybridization with a fluorolabeled complementary sequence, resulting in a homogeneous coverage of DNA within the imbibed droplet. This study represents a first step toward the μCS-enabled fabrication of DNA-based biosensors and microarrays into porous substrates.
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Affiliation(s)
- G Arrabito
- Department of Physics and Chemistry "Emilio Segrè" , University of Palermo , Building 17, V.le delle Scienze , Palermo 90128 , Italy
| | - V Ferrara
- Department of Chemical Sciences , University of Catania , Viale Andrea Doria 6 , Catania 95125 , Italy
| | - A Ottaviani
- Department of Biology , University of Rome Tor Vergata , Via della Ricerca Scientifica , Rome 00133 , Italy
| | - F Cavaleri
- Department of Physics and Chemistry "Emilio Segrè" , University of Palermo , Building 17, V.le delle Scienze , Palermo 90128 , Italy
| | - S Cubisino
- Department of Physics and Chemistry "Emilio Segrè" , University of Palermo , Building 17, V.le delle Scienze , Palermo 90128 , Italy
| | - P Cancemi
- Department of Biological Chemical and Pharmaceutical Sciences and Technologies , University of Palermo , Building 16, V.le delle Scienze , Palermo 90128 , Italy
| | - Y P Ho
- Department of Biomedical Engineering , The Chinese University of Hong Kong , Hong Kong SAR , China
- Centre for Novel Biomaterials , The Chinese University of Hong Kong , Hong Kong SAR , China
| | - B R Knudsen
- Department of Molecular Biology and Genetics , Aarhus University , C.F. Møllers Allé 3 , Aarhus C 8000 , Denmark
- iNANO , Aarhus University , Gustav Wieds Vej 14 , Aarhus 8000 , Denmark
| | - M S Hede
- VPCIR.COM , CF. Møllers Alle 3 , Aarhus C 800 , Denmark
| | - C Pellerito
- Department of Physics and Chemistry "Emilio Segrè" , University of Palermo , Building 17, V.le delle Scienze , Palermo 90128 , Italy
| | - A Desideri
- Department of Biology , University of Rome Tor Vergata , Via della Ricerca Scientifica , Rome 00133 , Italy
| | - S Feo
- Department of Biological Chemical and Pharmaceutical Sciences and Technologies , University of Palermo , Building 16, V.le delle Scienze , Palermo 90128 , Italy
| | - B Pignataro
- Department of Physics and Chemistry "Emilio Segrè" , University of Palermo , Building 17, V.le delle Scienze , Palermo 90128 , Italy
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The Characteristics of Oil Occurrence and Long-Distance Transportation due to Injected Fluid in Tight Oil Reservoirs. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/2707616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In tight oil reservoirs, the injected fluid needs to travel a long distance to expel oil from the micro/nano-size pores to natural fractures or man-made fractures. The flow characteristics of injected fluid are not known well due to the long distance displacement and complex pore structure. In this study, the tight reservoir samples are from typical tight oilfield of China and the oil distribution characteristics are studied based on mineral composition, physical properties and pore size distribution. The long core displacement experiment is conducted based on injection of water, N2, and CO2, which aims to study the individual flooding feasibility. The results show that the oil mainly distributes in the form of spots and accumulates in the micro/nano-pores. Both oil spots and clay minerals have associated characteristics. The microfractures are not the storage space for oil spots, but can connect the oil spots to improve the mobility of the crude oil. In addition, the oil can achieve long distance migration under the injection of water, N2, and CO2, which presents different pressure distribution characteristics. The reservoir pressure of water flooding decreases first and increases later with displacement time. The reservoir pressure of N2 flooding rises gradually over displacement time. The reservoir pressure of CO2 flooding increases first and decreases over displacement time. In contrast to water flooding, N2, and CO2 can increase the reservoir energy, which contributes to tight oil production. In comparison, CO2 has better performances than N2 in terms of oil displacement efficiency. The study contributes to understanding the oil distribution characteristics and provides the guidance for field trials using different flooding techniques.
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