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Hertle L, Sevim S, Zhu J, Pustovalov V, Veciana A, Llacer-Wintle J, Landers FC, Ye H, Chen XZ, Vogler H, Grossniklaus U, Puigmartí-Luis J, Nelson BJ, Pané S. A Naturally Inspired Extrusion-Based Microfluidic Approach for Manufacturing Tailorable Magnetic Soft Continuum Microrobotic Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402309. [PMID: 38780003 DOI: 10.1002/adma.202402309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 05/15/2024] [Indexed: 05/25/2024]
Abstract
Soft materials play a crucial role in small-scale robotic applications by closely mimicking the complex motion and morphing behavior of organisms. However, conventional fabrication methods face challenges in creating highly integrated small-scale soft devices. In this study, microfluidics is leveraged to precisely control reaction-diffusion (RD) processes to generate multifunctional and compartmentalized calcium-cross-linkable alginate-based microfibers. Under RD conditions, sophisticated alginate-based fibers are produced for magnetic soft continuum robotics applications with customizable features, such as geometry (compact or hollow), degree of cross-linking, and the precise localization of magnetic nanoparticles (inside the core, surrounding the fiber, or on one side). This fine control allows for tuning the stiffness and magnetic responsiveness of the microfibers. Additionally, chemically cleavable regions within the fibers enable disassembly into smaller robotic units or roll-up structures under a rotating magnetic field. These findings demonstrate the versatility of microfluidics in processing highly integrated small-scale devices.
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Affiliation(s)
- Lukas Hertle
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland
| | - Semih Sevim
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland
| | - Jiawei Zhu
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland
| | - Vitaly Pustovalov
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland
| | - Andrea Veciana
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland
| | - Joaquin Llacer-Wintle
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland
| | - Fabian C Landers
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland
| | - Hao Ye
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland
| | - Xiang-Zhong Chen
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland
- Institute of Optoelectronics State Key Laboratory of Photovoltaic Science and Technology Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception, Fudan University, Shanghai, 200433, P. R. China
- Yiwu Research Institute of Fudan University, Yiwu, Zhejiang, 322000, China
| | - Hannes Vogler
- Department of Plant and Microbial Biology & Zurich-Basel Plant Science Center, University of Zurich, Zollikerstrasse 107, Zurich, 8008, Switzerland
| | - Ueli Grossniklaus
- Department of Plant and Microbial Biology & Zurich-Basel Plant Science Center, University of Zurich, Zollikerstrasse 107, Zurich, 8008, Switzerland
| | - Josep Puigmartí-Luis
- Departament de Ciència dels Materials i Química Física Institut de Química Teòrica i Computacional, University of Barcelona, Martí i Franquès, 1, Barcelona, 08028, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, Barcelona, 08010, Spain
| | - Bradley J Nelson
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland
| | - Salvador Pané
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland
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2
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Zhu Z, Chen T, Wu Y, Wu X, Lang Z, Huang F, Zhu P, Si T, Xu RX. Microfluidic strategies for engineering oxygen-releasing biomaterials. Acta Biomater 2024; 179:61-82. [PMID: 38579919 DOI: 10.1016/j.actbio.2024.03.032] [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: 10/31/2023] [Revised: 02/26/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024]
Abstract
In the field of tissue engineering, local hypoxia in large-cell structures (larger than 1 mm3) poses a significant challenge. Oxygen-releasing biomaterials supply an innovative solution through oxygen delivery in a sustained and controlled manner. Compared to traditional methods such as emulsion, sonication, and agitation, microfluidic technology offers distinct benefits for oxygen-releasing material production, including controllability, flexibility, and applicability. It holds enormous potential in the production of smart oxygen-releasing materials. This review comprehensively covers the fabrication and application of microfluidic-enabled oxygen-releasing biomaterials. To begin with, the physical mechanism of various microfluidic technologies and their differences in oxygen carrier preparation are explained. Then, the distinctions among diverse oxygen-releasing components in regards for oxygen-releasing mechanism, oxygen-carrying capacity, and duration of oxygen release are presented. Finally, the present obstacles and anticipated development trends are examined together with the application outcomes of oxygen-releasing biomaterials based on microfluidic technology in the biomedical area. STATEMENT OF SIGNIFICANCE: Oxygen is essential for sustaining life, and hypoxia (a condition of low oxygen) is a significant challenge in various diseases. Microfluidic-based oxygen-releasing biomaterials offer precise control and outstanding performance, providing unique advantages over traditional approaches for tissue engineering. However, comprehensive reviews on this topic are currently lacking. In this review, we provide a comprehensive analysis of various microfluidic technologies and their applications for developing oxygen-releasing biomaterials. We compare the characteristics of organic and inorganic oxygen-releasing biomaterials and highlight the latest advancements in microfluidic-enabled oxygen-releasing biomaterials for tissue engineering, wound healing, and drug delivery. This review may hold the potential to make a significant contribution to the field, with a profound impact on the scientific community.
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Affiliation(s)
- Zhiqiang Zhu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, China; Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230026, China; Department of Mechanical Engineering, City University of Hong Kong, Hong Kong 999077, China
| | - Tianao Chen
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China; Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Yongqi Wu
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China; Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Xizhi Wu
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China; Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Zhongliang Lang
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China; Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Fangsheng Huang
- Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Pingan Zhu
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong 999077, China
| | - Ting Si
- Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Ronald X Xu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, China; Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230026, China; School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China; Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China.
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3
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Amin MO, D'Cruz B, Al-Hetlani E. Continuous synthesis of BaFe 2O 4 and BaFe 12O 19 nanoparticles in a droplet microreactor for efficient detection of antihistamine drugs in oral fluid using surface-assisted laser desorption/ionization mass spectrometry. Analyst 2023; 148:4489-4503. [PMID: 37578130 DOI: 10.1039/d3an01081c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) has received considerable attention as a complementary approach to matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS), offering substantial potential for analyzing molecules in the low-mass region. Herein, we propose a facile method, a microreactor for the synthesis of two types of barium ferrite (BaFe2O4 and BaFe12O19) nanoparticles (NPs) within moving droplets for detecting antihistamine (AH) drugs in oral fluid (OF). The synthesized BaFe2O4 and BaFe12O19 NPs exhibited small particle size, good ultraviolet absorption, and excellent performance in SALDI-MS, as determined by survival yield measurements. The limits-of-detection for AH drugs were in the range of 1 pg mL-1 to 100 ng mL-1, and spot-spot reproducibility of the SALDI substrates was satisfactory. Moreover, when analyzing cetirizine in OF, the obtained recoveries of cetirizine were 101% and 99% using BaFe2O4 and BaFe12O19 NP, respectively. Furthermore, the proposed method was validated by analyzing OF samples from a healthy volunteer who consumed a 5 mg levocetirizine tablet for seven days. SALDI-MS analysis confirmed the successful detection of endogenous components, the parent ion of cetirizine, and other exogenous substances. This study reports an advanced application of droplet microreactor technology for designing and synthesizing a wide range of novel and efficient SALDI-MS substrates for various applications.
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Affiliation(s)
- Mohamed O Amin
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat - 13060, Kuwait.
| | - Bessy D'Cruz
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat - 13060, Kuwait.
| | - Entesar Al-Hetlani
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat - 13060, Kuwait.
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4
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Kargari Aghmiouni D, Khoee S. Dual-Drug Delivery by Anisotropic and Uniform Hybrid Nanostructures: A Comparative Study of the Function and Substrate-Drug Interaction Properties. Pharmaceutics 2023; 15:1214. [PMID: 37111700 PMCID: PMC10142803 DOI: 10.3390/pharmaceutics15041214] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/23/2023] [Accepted: 04/02/2023] [Indexed: 04/29/2023] Open
Abstract
By utilizing nanoparticles to upload and interact with several pharmaceuticals in varying methods, the primary obstacles associated with loading two or more medications or cargos with different characteristics may be addressed. Therefore, it is feasible to evaluate the benefits provided by co-delivery systems utilizing nanoparticles by investigating the properties and functions of the commonly used structures, such as multi- or simultaneous-stage controlled release, synergic effect, enhanced targetability, and internalization. However, due to the unique surface or core features of each hybrid design, the eventual drug-carrier interactions, release, and penetration processes may vary. Our review article focused on the drug's loading, binding interactions, release, physiochemical, and surface functionalization features, as well as the varying internalization and cytotoxicity of each structure that may aid in the selection of an appropriate design. This was achieved by comparing the actions of uniform-surfaced hybrid particles (such as core-shell particles) to those of anisotropic, asymmetrical hybrid particles (such as Janus, multicompartment, or patchy particles). Information is provided on the use of homogeneous or heterogeneous particles with specified characteristics for the simultaneous delivery of various cargos, possibly enhancing the efficacy of treatment techniques for illnesses such as cancer.
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Affiliation(s)
| | - Sepideh Khoee
- Polymer Laboratory, School of Chemistry, College of Science, University of Tehran, Tehran 14155-6455, Iran
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5
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Free-radical polymerization in a droplet with initiation at the interface. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.112002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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6
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Farooqi ZH, Vladisavljević GT, Pamme N, Fatima A, Begum R, Irfan A, Chen M. Microfluidic Fabrication and Applications of Microgels and Hybrid Microgels. Crit Rev Anal Chem 2023:1-15. [PMID: 36757081 DOI: 10.1080/10408347.2023.2177097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Smart microgels have gained much attention because of their wide range of applications in the field of biomedical, environmental, nanotechnological and catalysis sciences. Most of the applications of microgels are strongly affected by their morphology, size and size distribution. Various methodologies have been adopted to obtain polymer microgel particles. Droplet microfluidic techniques have been widely reported for the fabrication of highly monodisperse microgel particles to be used for various applications. Monodisperse microgel particles of required size and morphology can be achieved via droplet microfluidic techniques by simple polymerization of monomers in the presence of suitable crosslinker or by gelation of high molecular weight polymers. This report gives recent research progress in fabrication, characterization, properties and applications of microgel particles synthesized by microfluidic methods.
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Affiliation(s)
- Zahoor H Farooqi
- School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
- Department of Chemical Engineering, Loughborough University, Loughborough, UK
| | | | - Nicole Pamme
- Department for Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
- Department of Chemistry and Biochemistry, University of Hull, Hull, United Kingdom
| | - Arooj Fatima
- School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Robina Begum
- School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Ahmad Irfan
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
- Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
| | - Minjun Chen
- Department of Chemical Engineering, Loughborough University, Loughborough, UK
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7
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Yu Q, Su B, Zhao W, Zhao C. Janus Self-Propelled Chitosan-Based Hydrogel Spheres for Rapid Bleeding Control. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205989. [PMID: 36567271 PMCID: PMC9929117 DOI: 10.1002/advs.202205989] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/22/2022] [Indexed: 06/12/2023]
Abstract
Uncontrolled hemorrhage is a major cause of potentially preventable death in civilian trauma nowadays. Considerable concern has been given to the development of efficient hemostats with high blood absorption, self-propelled property, and Ca2+ release ability, for irregularly shaped and noncompressible hemorrhage. Herein, Janus self-propelled chitosan-based hydrogel with CaCO3 (J-CMH@CaCO3 ) is developed by partial ionic crosslinking of carboxylated chitosan (CCS) and Ca2+ , gravity settlement, and photopolymerization, followed by removing the shell of CCS. The obtained J-CMH@CaCO3 is further used as a hemostat powered by the internal CaCO3 and coordinated protonated tranexamic acid (J-CMH@CaCO3 /T). Bubbles are generated and detached to provide the driving force, accompanied by the release of Ca2+ . The two aspects work in synergy to accelerate clot formation, endowing the J-CMH@CaCO3 /T with excellent hemostatic efficiency. The J-CMH@CaCO3 /T presents high blood absorption, favorable blood-clotting ability, desired erythrocyte and platelet aggregation, and acceptable hemocompatibility and cytocompatibility. In rodent and rabbit bleeding models, the J-CMH@CaCO3 /T exhibits the most effective hemostasis to the best knowledge of the authors, wherein the hemorrhage is rapidly halted within 39 s. It is believed that the J-CMH@CaCO3 /T with self-propelled property opens up a new avenue to design high-performance hemostats for clinical application.
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Affiliation(s)
- Qiao Yu
- Department of NephrologyWest China HospitalSichuan UniversityChengdu610041China
- Institute for Disaster Management and ReconstructionSichuan UniversityChengdu610207China
- Med‐X Center for MaterialsSichuan UniversityChengdu610041China
| | - Baihai Su
- Department of NephrologyWest China HospitalSichuan UniversityChengdu610041China
- Med‐X Center for MaterialsSichuan UniversityChengdu610041China
| | - Weifeng Zhao
- Med‐X Center for MaterialsSichuan UniversityChengdu610041China
- College of Polymer Science and EngineeringState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu610054China
| | - Changsheng Zhao
- Med‐X Center for MaterialsSichuan UniversityChengdu610041China
- College of Polymer Science and EngineeringState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu610054China
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8
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Development of Janus Particles as Potential Drug Delivery Systems for Diabetes Treatment and Antimicrobial Applications. Pharmaceutics 2023; 15:pharmaceutics15020423. [PMID: 36839746 PMCID: PMC9967574 DOI: 10.3390/pharmaceutics15020423] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/12/2023] [Accepted: 01/24/2023] [Indexed: 02/03/2023] Open
Abstract
Janus particles have emerged as a novel and smart material that could improve pharmaceutical formulation, drug delivery, and theranostics. Janus particles have two distinct compartments that differ in functionality, physicochemical properties, and morphological characteristics, among other conventional particles. Recently, Janus particles have attracted considerable attention as effective particulate drug delivery systems as they can accommodate two opposing pharmaceutical agents that can be engineered at the molecular level to achieve better target affinity, lower drug dosage to achieve a therapeutic effect, and controlled drug release with improved pharmacokinetics and pharmacodynamics. This article discusses the development of Janus particles for tailored and improved delivery of pharmaceutical agents for diabetes treatment and antimicrobial applications. It provides an account of advances in the synthesis of Janus particles from various materials using different approaches. It appraises Janus particles as a promising particulate system with the potential to improve conventional delivery systems, providing a better loading capacity and targeting specificity whilst promoting multi-drugs loading and single-dose-drug administration.
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9
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Saqib M, Tran PA, Ercan B, Erdem EY. Microfluidic Methods in Janus Particle Synthesis. Int J Nanomedicine 2022; 17:4355-4366. [PMID: 36160470 PMCID: PMC9507176 DOI: 10.2147/ijn.s371579] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 08/25/2022] [Indexed: 11/23/2022] Open
Abstract
Janus particles have been at the center of attention over the years due to their asymmetric nature that makes them superior in many ways to conventional monophase particles. Several techniques have been reported for the synthesis of Janus particles; however, microfluidic-based techniques are by far the most popular due to their versatility, rapid prototyping, low reagent consumption and superior control over reaction conditions. In this review, we will go through microfluidic-based Janus particle synthesis techniques and highlight how recent advances have led to complex functionalities being imparted to the Janus particles.
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Affiliation(s)
- Muhammad Saqib
- Department of Mechanical Engineering, Bilkent University, Ankara, Turkey
| | - Phong A Tran
- Queensland University of Technology (QUT), Brisbane, QLD, 4000, Australia
| | - Batur Ercan
- Department of Metallurgical and Materials Engineering, Middle East Technical University, Ankara, Turkey.,Biomedical Engineering Program, Middle East Technical University, Ankara, Turkey.,BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, 06800, Turkey
| | - E Yegan Erdem
- Department of Mechanical Engineering, Bilkent University, Ankara, Turkey.,National Nanotechnology Research Center (UNAM), Ankara, Turkey
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10
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Wang Y, Zhao P, Zhang S, Zhu K, Shangguan X, Liu L, Zhang S. Application of Janus Particles in Point-of-Care Testing. BIOSENSORS 2022; 12:bios12090689. [PMID: 36140074 PMCID: PMC9496037 DOI: 10.3390/bios12090689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 06/01/2023]
Abstract
Janus particles (JPs), named after the two-faced Roman god, are asymmetric particles with different chemical properties or polarities. JPs have been widely used in the biomedical field in recent years, including as drug carriers for targeted controlled drug release and as biosensors for biological imaging and biomarker detection, which is crucial in the early detection and treatment of diseases. In this review, we highlight the most recent advancements made with regard to Janus particles in point-of-care testing (POCT). Firstly, we introduce several commonly used methods for preparing Janus particles. Secondly, we present biomarker detection using JPs based on various detection methods to achieve the goal of POCT. Finally, we discuss the challenges and opportunities for developing Janus particles in POCT. This review will facilitate the development of POCT biosensing devices based on the unique properties of Janus particles.
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11
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Yuan S, Wang J, Xiang Y, Zheng S, Wu Y, Liu J, Zhu X, Zhang Y. Shedding Light on Luminescent Janus Nanoparticles: From Synthesis to Photoluminescence and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200020. [PMID: 35429137 DOI: 10.1002/smll.202200020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/24/2022] [Indexed: 06/14/2023]
Abstract
Luminescent Janus nanoparticles refer to a special category of Janus-based nanomaterials that not only exhibit dual-asymmetric surface nature but also attractive optical properties. The introduction of luminescence has endowed conventional Janus nanoparticles with many alluring light-responsive functionalities and broadens their applications in imaging, sensing, nanomotors, photo-based therapy, etc. The past few decades have witnessed significant achievements in this field. This review first summarizes well-established strategies to design and prepare luminescent Janus nanoparticles and then discusses optical properties of luminescent Janus nanoparticles based on downconversion and upconversion photoluminescence mechanisms. Various emerging applications of luminescent Janus nanoparticles are also introduced. Finally, opportunities and future challenges are highlighted with respect to the development of next-generation luminescent Janus nanoparticles with diverse applications.
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Affiliation(s)
- Shanshan Yuan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Jing Wang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yi Xiang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Shanshan Zheng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yihan Wu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Jinliang Liu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Xiaohui Zhu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yong Zhang
- Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, 117583, Singapore
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12
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Zhu GP, Wang QY, Ma ZK, Wu SH, Guo YP. Droplet Manipulation under a Magnetic Field: A Review. BIOSENSORS 2022; 12:bios12030156. [PMID: 35323426 PMCID: PMC8946071 DOI: 10.3390/bios12030156] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/27/2022] [Accepted: 02/28/2022] [Indexed: 05/04/2023]
Abstract
The magnetic manipulation of droplets is one of the emerging magnetofluidic technologies that integrate multiple disciplines, such as electromagnetics, fluid mechanics and so on. The directly driven droplets are mainly composed of ferrofluid or liquid metal. This kind of magnetically induced droplet manipulation provides a remote, wireless and programmable approach beneficial for research and engineering applications, such as drug synthesis, biochemistry, sample preparation in life sciences, biomedicine, tissue engineering, etc. Based on the significant growth in the study of magneto droplet handling achieved over the past decades, further and more profound explorations in this field gained impetus, raising concentrations on the construction of a comprehensive working mechanism and the commercialization of this technology. Current challenges faced are not limited to the design and fabrication of the magnetic field, the material, the acquisition of precise and stable droplet performance, other constraints in processing speed and so on. The rotational devices or systems could give rise to additional issues on bulky appearance, high cost, low reliability, etc. Various magnetically introduced droplet behaviors, such as deformation, displacement, rotation, levitation, splitting and fusion, are mainly introduced in this work, involving the basic theory, functions and working principles.
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13
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Liu Y, Nisisako T. Microfluidic generation of monodispersed Janus alginate hydrogel microparticles using water-in-oil emulsion reactant. BIOMICROFLUIDICS 2022; 16:024101. [PMID: 35282035 PMCID: PMC8896892 DOI: 10.1063/5.0077916] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
Microparticles with uniform anisotropic structures are widely used in physical, chemical, and biological fields owing to their ability to combine multiple functions on a micro-scale. Here, a microfluidic emulsion-based external gelation method was demonstrated for the first time to produce monodisperse Janus calcium alginate (Ca-alginate) hydrogel microparticles consisting of two compartments. This approach provided a fast reaction condition under which we could prepare magnetic Janus Ca-alginate microparticles with diameters ranging from 148 to 179 μm and a coefficient of variation (CV) less than 4%. Moreover, the boundaries between the two compartments were clear. In addition, the volume fraction of each compartment could be adjusted by varying the flow rate ratio between two dispersed phases. Next, we produced fluorescent Janus beads and magnetic-fluorescent Janus beads with an average diameter of ∼150 μm (CV < 4.0%). The magnetic Janus hydrogel microparticles we produced could be manipulated by applying a magnetic field to achieve self-assembly, rotation, and accumulation. Magnetic Janus hydrogel microparticles are also capable of mammalian cell encapsulation with good cell viability. This article presents a simple and stable approach for producing monodisperse bi-compartmental Janus hydrogel microparticles that could have great potential for application in physical, biochemical, and biomedical fields.
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Affiliation(s)
- Yingzhe Liu
- Department of Mechanical Engineering, School of Engineering, Tokyo Institute of Technology, Tokyo, Japan
| | - Takasi Nisisako
- Institute of Innovative Research, Tokyo Institute of Technology, R2-9, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
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14
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Fabrication of Microparticles with Front-Back Asymmetric Shapes Using Anisotropic Gelation. MICROMACHINES 2021; 12:mi12091121. [PMID: 34577764 PMCID: PMC8466830 DOI: 10.3390/mi12091121] [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: 08/20/2021] [Revised: 09/10/2021] [Accepted: 09/14/2021] [Indexed: 01/13/2023]
Abstract
Droplet-based microfluidics is a powerful tool for producing monodispersed micrometer-sized droplets with controlled sizes and shapes; thus, it has been widely applied in diverse fields from fundamental science to industries. Toward a simpler method for fabricating microparticles with front–back asymmetry in their shapes, we studied anisotropic gelation of alginate droplets, which occurs inside a flow-focusing microfluidic device. In the proposed method, sodium alginate (NaAlg) aqueous phase fused with a calcium chloride (CaCl2) emulsion dispersed in the organic phase just before the aqueous phase breaks up into the droplets. The fused droplet with a front–back asymmetric shape was generated, and the asymmetric shape was kept after geometrical confinement by a narrow microchannel was removed. The shape of the fused droplet depended on the size of prefused NaAlg aqueous phase and a CaCl2 emulsion, and the front–back asymmetry appeared in the case of the smaller emulsion size. The analysis of the velocity field inside and around the droplet revealed that the stagnation point at the tip of the aqueous phase also played an important role. The proposed mechanism will be potentially applicable as a novel fabrication technique of microparticles with asymmetric shapes.
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Wang X, Dong M, Meng Z, Chen J, Yang J, Wang X. Synthesis and Biological Activity of Acrylate Copolymers Containing 3-Oxo-N-allyl-1,2-benzisothiazole-3(2H)-carboxamide Monomer as a Marine Antifouling Coating. ChemistryOpen 2021; 10:523-533. [PMID: 33629516 PMCID: PMC8095297 DOI: 10.1002/open.202000273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 02/02/2021] [Indexed: 11/10/2022] Open
Abstract
A type of grafted acrylate copolymer resins, containing 3-oxo-N-allyl-1,2-benzisothiazole-2(3H)-carboxamide monomer and heterocyclic monomers, was synthesized through the copolymeri- zation of methyl methacrylate (MMA) and butyl acrylate (BA) with functional monomers. The structures of the monomers and copolymers were validated by infrared (IR) and 1 H nuclear magnetic resonance (NMR) spectroscopies. The inhibitory activities of the copolymers on algae, bacteria, and barnacle larvae were measured, and the antifouling potencies against marine macrofouling organisms were investigated. The results showed that the grafted resin had significant inhibitory effects on the growth of three marine algae (Isochrysis galbana, Nannochloropsisoculata, and Chlorella pyrenoidosa), and three bacteria (Vibrio coralliilyticus, Staphylococcus aureus,and Vibrio parahaemolyticus). The target copolymers also showed excellent inhibition of the survival of barnacle larvae. Additionally, the release rate of the antifoulant and the results of the marine field tests indicated that the grafted copolymers had outstanding antifouling potency against the attachment of marine macrofouling organisms.
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Affiliation(s)
- Xuemei Wang
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- Hainan Provincial Fine Chemical Engineering Research CenterHainan UniversityHaikou570228P. R. China
| | - Miao Dong
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- Hainan Provincial Fine Chemical Engineering Research CenterHainan UniversityHaikou570228P. R. China
| | - Zhiping Meng
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
| | - Junhua Chen
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
| | - Jianxin Yang
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- Hainan Provincial Fine Chemical Engineering Research CenterHainan UniversityHaikou570228P. R. China
| | - Xianghui Wang
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- College of Chemistry and Chemical EngineeringHainan Normal UniversityHaikou571158P. R. China
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Yang Y, Wang Z, Chen R, Zhu X, Liao Q, Ye D, Yang Y, Li W. Droplet Migration and Coalescence in a Microchannel Induced by the Photothermal Effect of a Focused Infrared Laser. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yijing Yang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Zhibin Wang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Rong Chen
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Xun Zhu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Qiang Liao
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Dingding Ye
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Yang Yang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Wei Li
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
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Luo Y, Yang J, Zheng X, Wang J, Tu X, Che Z, Fang J, Xi L, Nguyen NT, Song C. Three-dimensional visualization and analysis of flowing droplets in microchannels using real-time quantitative phase microscopy. LAB ON A CHIP 2021; 21:75-82. [PMID: 33284306 DOI: 10.1039/d0lc00917b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recent years have witnessed the development of droplet-based microfluidics as a useful and effective tool for high-throughput analysis in biological, chemical and environmental sciences. Despite the flourishing development of droplet manipulation techniques, only a few methods allow for label-free and quantitative inspection of flowing droplets in microchannels in real-time and in three dimensions (3-D). In this work, we propose and demonstrate the application of a real-time quantitative phase microscopy (RT-QPM) technique for 3-D visualization of droplets, and also for full-field and label-free measurement of analyte concentration distribution in the droplets. The phase imaging system consists of a linear-CCD-based holographic microscopy configuration and an optofluidic phase-shifting element, which can be used for retrieving quantitative phase maps of flowing objects in the microchannels with a temporal resolution only limited to the frame rate of the CCD camera. To demonstrate the capabilities of the proposed imaging technique, we have experimentally validated the 3-D image reconstruction of the droplets generated in squeezing and dripping regimes and quantitatively investigated the volumetric and morphological variation of droplets as well as droplet parameters related to the depth direction under different flow conditions. We also demonstrated the feasibility of using this technique, as a refractive index sensor, for in-line quantitative measurement of carbamide analyte concentration within the flowing droplets.
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Affiliation(s)
- Yingdong Luo
- School of Mechanical Engineering and Electronic Information, China University of Geosciences, Wuhan, 430074, China.
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Xu W, Rudov A, Oppermann A, Wypysek S, Kather M, Schroeder R, Richtering W, Potemkin II, Wöll D, Pich A. Synthesis of Polyampholyte Janus-like Microgels by Coacervation of Reactive Precursors in Precipitation Polymerization. Angew Chem Int Ed Engl 2020; 59:1248-1255. [PMID: 31664769 PMCID: PMC6973257 DOI: 10.1002/anie.201910450] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 09/30/2019] [Indexed: 01/20/2023]
Abstract
Controlling the distribution of ionizable groups of opposite charge in microgels is an extremely challenging task, which could open new pathways to design a new generation of stimuli-responsive colloids. Herein, we report a straightforward approach for the synthesis of polyampholyte Janus-like microgels, where ionizable groups of opposite charge are located on different sides of the colloidal network. This synthesis approach is based on the controlled self-assembly of growing polyelectrolyte microgel precursors during the precipitation polymerization process. We confirmed the morphology of polyampholyte Janus-like microgels and demonstrate that they are capable of responding quickly to changes in both pH and temperature in aqueous solutions.
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Affiliation(s)
- Wenjing Xu
- DWI—Leibniz-Institute for Interactive Materials e.V.RWTH-Aachen UniversityForckenbeckstraße 5052074AachenGermany
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringerweg 252074AachenGermany
| | - Andrey Rudov
- DWI—Leibniz-Institute for Interactive Materials e.V.RWTH-Aachen UniversityForckenbeckstraße 5052074AachenGermany
- Physics DepartmentLomonosov Moscow State UniversityMoscow119991Russian Federation
| | - Alex Oppermann
- Institute of Physical ChemistryRWTH Aachen UniversityLandoltweg 252074AachenGermany
| | - Sarah Wypysek
- Institute of Physical ChemistryRWTH Aachen UniversityLandoltweg 252074AachenGermany
| | - Michael Kather
- DWI—Leibniz-Institute for Interactive Materials e.V.RWTH-Aachen UniversityForckenbeckstraße 5052074AachenGermany
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringerweg 252074AachenGermany
| | - Ricarda Schroeder
- DWI—Leibniz-Institute for Interactive Materials e.V.RWTH-Aachen UniversityForckenbeckstraße 5052074AachenGermany
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringerweg 252074AachenGermany
| | - Walter Richtering
- Institute of Physical ChemistryRWTH Aachen UniversityLandoltweg 252074AachenGermany
| | - Igor I. Potemkin
- DWI—Leibniz-Institute for Interactive Materials e.V.RWTH-Aachen UniversityForckenbeckstraße 5052074AachenGermany
- Physics DepartmentLomonosov Moscow State UniversityMoscow119991Russian Federation
- National Research South Ural State UniversityChelyabinsk454080Russian Federation
| | - Dominik Wöll
- Institute of Physical ChemistryRWTH Aachen UniversityLandoltweg 252074AachenGermany
| | - Andrij Pich
- DWI—Leibniz-Institute for Interactive Materials e.V.RWTH-Aachen UniversityForckenbeckstraße 5052074AachenGermany
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringerweg 252074AachenGermany
- Aachen Maastricht Institute for Biobased Materials (AMIBM)Maastricht UniversityBrightlands ChemelotThe Netherlands
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Disease diagnostics using hydrodynamic flow focusing in microfluidic devices: Beyond flow cytometry. Biomed Eng Lett 2020; 10:241-257. [PMID: 32431954 DOI: 10.1007/s13534-019-00144-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/23/2019] [Accepted: 11/28/2019] [Indexed: 01/09/2023] Open
Abstract
The multi-disciplinary field of microfluidics has the potential to provide solutions to a diverse set of problems. It offers the advantages of high-throughput, continuous, rapid and expeditious analysis requiring minute quantities of sample. However, even as this field has yielded many mass-manufacturable and cost-efficient point-of-care devices, its direct and practical applications into the field of disease diagnostics still remain limited and largely overlooked by the industry. This review focuses on the phenomenon of hydrodynamic focusing and its potential to materialize solutions for appropriate diagnosis and prognosis. The study aims to look beyond its intended cytometric applications and focus on unambiguous disease detection, monitoring, drug delivery, studies conducted on DNA and highlight the instances in the scientific literature that have proposed such approach.
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21
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Xu W, Rudov A, Oppermann A, Wypysek S, Kather M, Schroeder R, Richtering W, Potemkin II, Wöll D, Pich A. Synthesis of Polyampholyte Janus‐like Microgels by Coacervation of Reactive Precursors in Precipitation Polymerization. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Wenjing Xu
- DWI—Leibniz-Institute for Interactive Materials e.V. RWTH-Aachen University Forckenbeckstraße 50 52074 Aachen Germany
- Institute of Technical and Macromolecular Chemistry RWTH Aachen University Worringerweg 2 52074 Aachen Germany
| | - Andrey Rudov
- DWI—Leibniz-Institute for Interactive Materials e.V. RWTH-Aachen University Forckenbeckstraße 50 52074 Aachen Germany
- Physics Department Lomonosov Moscow State University Moscow 119991 Russian Federation
| | - Alex Oppermann
- Institute of Physical Chemistry RWTH Aachen University Landoltweg 2 52074 Aachen Germany
| | - Sarah Wypysek
- Institute of Physical Chemistry RWTH Aachen University Landoltweg 2 52074 Aachen Germany
| | - Michael Kather
- DWI—Leibniz-Institute for Interactive Materials e.V. RWTH-Aachen University Forckenbeckstraße 50 52074 Aachen Germany
- Institute of Technical and Macromolecular Chemistry RWTH Aachen University Worringerweg 2 52074 Aachen Germany
| | - Ricarda Schroeder
- DWI—Leibniz-Institute for Interactive Materials e.V. RWTH-Aachen University Forckenbeckstraße 50 52074 Aachen Germany
- Institute of Technical and Macromolecular Chemistry RWTH Aachen University Worringerweg 2 52074 Aachen Germany
| | - Walter Richtering
- Institute of Physical Chemistry RWTH Aachen University Landoltweg 2 52074 Aachen Germany
| | - Igor I. Potemkin
- DWI—Leibniz-Institute for Interactive Materials e.V. RWTH-Aachen University Forckenbeckstraße 50 52074 Aachen Germany
- Physics Department Lomonosov Moscow State University Moscow 119991 Russian Federation
- National Research South Ural State University Chelyabinsk 454080 Russian Federation
| | - Dominik Wöll
- Institute of Physical Chemistry RWTH Aachen University Landoltweg 2 52074 Aachen Germany
| | - Andrij Pich
- DWI—Leibniz-Institute for Interactive Materials e.V. RWTH-Aachen University Forckenbeckstraße 50 52074 Aachen Germany
- Institute of Technical and Macromolecular Chemistry RWTH Aachen University Worringerweg 2 52074 Aachen Germany
- Aachen Maastricht Institute for Biobased Materials (AMIBM) Maastricht University Brightlands Chemelot The Netherlands
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Affiliation(s)
- Yun Ding
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zürich, Switzerland
| | - Philip D. Howes
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zürich, Switzerland
| | - Andrew J. deMello
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zürich, Switzerland
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23
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Lim YGJ, Poh KCW, Loo SCJ. Hybrid Janus Microparticles Achieving Selective Encapsulation for Theranostic Applications via a Facile Solvent Emulsion Method. Macromol Rapid Commun 2018; 40:e1800801. [DOI: 10.1002/marc.201800801] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/07/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Yi Guang Jerome Lim
- School of Materials Science and EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798
| | - Kwok Choon Wilson Poh
- School of Materials Science and EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798
| | - Say Chye Joachim Loo
- School of Materials Science and EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798
- Singapore Centre on Environmental Life Sciences EngineeringNanyang Technological University Singapore 637551
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24
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Sindoro M, Granick S. Ionic Janus Liquid Droplets Assembled and Propelled by Electric Field. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Melinda Sindoro
- School of Materials Science & EngineeringNanyang Technological University 50 Nanyang Ave Singapore 639798 Singapore
| | - Steve Granick
- IBS Center for Soft and Living MatterInstitute of Basic Science Ulsan 44919 Republic of Korea
- Departments of Chemistry and PhysicsUNIST Ulsan 44919 Republic of Korea
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Sindoro M, Granick S. Ionic Janus Liquid Droplets Assembled and Propelled by Electric Field. Angew Chem Int Ed Engl 2018; 57:16773-16776. [PMID: 30378736 DOI: 10.1002/anie.201810862] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Melinda Sindoro
- School of Materials Science & EngineeringNanyang Technological University 50 Nanyang Ave Singapore 639798 Singapore
| | - Steve Granick
- IBS Center for Soft and Living MatterInstitute of Basic Science Ulsan 44919 Republic of Korea
- Departments of Chemistry and PhysicsUNIST Ulsan 44919 Republic of Korea
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Xia M, Go EM, Choi KH, Lim JH, Park B, Yu T, Im SH, Kwak SK, Park BJ. One-step production of highly anisotropic particles via a microfluidic method. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.03.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kamperman T, Trikalitis VD, Karperien M, Visser CW, Leijten J. Ultrahigh-Throughput Production of Monodisperse and Multifunctional Janus Microparticles Using in-Air Microfluidics. ACS APPLIED MATERIALS & INTERFACES 2018; 10:23433-23438. [PMID: 29952552 PMCID: PMC6050533 DOI: 10.1021/acsami.8b05227] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 06/28/2018] [Indexed: 05/17/2023]
Abstract
Compartmentalized Janus microparticles advance many applications ranging from chemical synthesis to consumer electronics. Although these particles can be accurately manufactured using microfluidic droplet generators, the per-nozzle throughputs are relatively low (∼μL/min). Here, we use "in-air microfluidics" to combine liquid microjets in midair, thereby enabling orders of magnitude faster production of Janus microparticles (∼mL/min) as compared to chip-based microfluidics. Monodisperse Janus microparticles with diameters between 50 and 500 μm, tunable compartment sizes, and functional cargo are controllably produced. Furthermore, these microparticles are designed as magnetically steerable microreactors, which represents a novel tool to perform enzymatic cascade reactions within continuous fluid flows.
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Affiliation(s)
- Tom Kamperman
- Department
of Developmental BioEngineering, Technical Medical Centre, and Physics of Fluids
Group, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands
- E-mail:
| | - Vasileios D. Trikalitis
- Department
of Developmental BioEngineering, Technical Medical Centre, and Physics of Fluids
Group, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands
| | - Marcel Karperien
- Department
of Developmental BioEngineering, Technical Medical Centre, and Physics of Fluids
Group, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands
| | - Claas Willem Visser
- Department
of Developmental BioEngineering, Technical Medical Centre, and Physics of Fluids
Group, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands
- Wyss
Institute for Biologically Inspired Engineering and John A. Paulson
School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Jeroen Leijten
- Department
of Developmental BioEngineering, Technical Medical Centre, and Physics of Fluids
Group, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands
- E-mail:
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Wang X, Liu J, Wang P, deMello A, Feng L, Zhu X, Wen W, Kodzius R, Gong X. Synthesis of Biomaterials Utilizing Microfluidic Technology. Genes (Basel) 2018; 9:E283. [PMID: 29874840 PMCID: PMC6027171 DOI: 10.3390/genes9060283] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/23/2018] [Accepted: 05/30/2018] [Indexed: 12/16/2022] Open
Abstract
Recently, microfluidic technologies have attracted an enormous amount of interest as potential new tools for a large range of applications including materials synthesis, chemical and biological detection, drug delivery and screening, point-of-care diagnostics, and in-the-field analysis. Their ability to handle extremely small volumes of fluids is accompanied by additional benefits, most notably, rapid and efficient mass and heat transfer. In addition, reactions performed within microfluidic systems are highly controlled, meaning that many advanced materials, with uniform and bespoke properties, can be synthesized in a direct and rapid manner. In this review, we discuss the utility of microfluidic systems in the synthesis of materials for a variety of biological applications. Such materials include microparticles or microcapsules for drug delivery, nanoscale materials for medicine or cellular assays, and micro- or nanofibers for tissue engineering.
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Affiliation(s)
- Xiaohong Wang
- Materials Genome Institute, Shanghai University, Shanghai 201800, China.
| | - Jinfeng Liu
- Materials Genome Institute, Shanghai University, Shanghai 201800, China.
| | - Peizhou Wang
- Advanced Placement of Chemistry Program, International Department, Huzhou New Century Foreign Language School, Huzhou 313100, China.
| | | | - Lingyan Feng
- Materials Genome Institute, Shanghai University, Shanghai 201800, China.
| | - Xiaoli Zhu
- School of Life Sciences, Shanghai University, Shanghai 200444, China.
| | - Weijia Wen
- Materials Genome Institute, Shanghai University, Shanghai 201800, China.
| | - Rimantas Kodzius
- Mathematics and Natural Sciences Department, the American University of Iraq, Sulaimani, Sulaymaniyah 46001, Iraq.
- Faculty of Medicine, Ludwig Maximilian University of Munich (LMU), 80539 Munich, Germany.
- Faculty of Medicine, Technical University of Munich (TUM), 81675 Munich, Germany.
| | - Xiuqing Gong
- Materials Genome Institute, Shanghai University, Shanghai 201800, China.
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Varma VB, Wu RG, Wang ZP, Ramanujan RV. Magnetic Janus particles synthesized using droplet micro-magnetofluidic techniques for protein detection. LAB ON A CHIP 2017; 17:3514-3525. [PMID: 28936512 DOI: 10.1039/c7lc00830a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Magnetic droplets on a microfluidic platform can act as micro-robots, providing wireless, remote, and programmable control. This field of droplet micro-magnetofluidics (DMMF) is useful for droplet merging, mixing and synthesis of Janus structures. Specifically, magnetic Janus particles (MJP) are useful for protein and DNA detection as well as magnetically controlled bioprinting. However, synthesis of MJP with control of the functional phases is a challenge. Hence, we developed a high flow rate, surfactant-free, wash-less method to synthesize MJP by integration of DMMF with hybrid magnetic fields. The effects of the flow rate, flow rate ratio, and hybrid magnetic field on the magnetic component of the Janus droplets and the MJP were investigated. It was found that the magnetization, particle size, and phase distribution inside MJP could be readily tuned by the flow rates and the magnetic field. The magnetic component in the MJP could be concentrated after mixing at flow rate ratio values less than 7.5 and flow rates less than 3 ml h-1. The experimental results and our simulations are in good agreement. The synthesized magnetic-fluorescent Janus particles were used for protein detection, with BSA as a model protein.
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Affiliation(s)
- V B Varma
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore.
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Wu Q, Yang C, Liu G, Xu W, Zhu Z, Si T, Xu RX. Multiplex coaxial flow focusing for producing multicompartment Janus microcapsules with tunable material compositions and structural characteristics. LAB ON A CHIP 2017; 17:3168-3175. [PMID: 28812769 DOI: 10.1039/c7lc00769h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We propose a simple but efficient multiplex coaxial flow focusing (MCFF) process for single-step fabrication of multicompartment Janus microcapsules (MJMs) in a wide range of operating parameters. The produced MJMs consist of a multicompartmental core-shell structure with material compositions tunable in individual shell and core compartments. Potential applications of such a MJM agent are demonstrated in both benchtop and in vitro experiments. For the benchtop experiment, magnetic nanoparticles are loaded into one of the shell compartments and photopolymerized under ultraviolet light for controlled alignment and rotation of the microcapsules in a magnetic field. For the in vitro experiment, four different types of cells are encapsulated in the desired compartments of sodium alginate MJMs and co-cultured for seven days. By increasing the number of coaxial needles, we are also able to produce MJMs with three or more compartments. Our studies have shown that the proposed MCFF process is able to produce MJMs with desired material compositions and narrow size distribution. This process is inexpensive and scalable for mass production of various MJMs in its potential applications in biomedical imaging, drug delivery, and regenerative medicine.
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Affiliation(s)
- Qiang Wu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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Fu YH, Bai L, Luo KH, Jin Y, Cheng Y. Modeling mass transfer and reaction of dilute solutes in a ternary phase system by the lattice Boltzmann method. Phys Rev E 2017; 95:043304. [PMID: 28505730 DOI: 10.1103/physreve.95.043304] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Indexed: 06/07/2023]
Abstract
In this work, we propose a general approach for modeling mass transfer and reaction of dilute solute(s) in incompressible three-phase flows by introducing a collision operator in lattice Boltzmann (LB) method. An LB equation was used to simulate the solute dynamics among three different fluids, in which the newly expanded collision operator was used to depict the interface behavior of dilute solute(s). The multiscale analysis showed that the presented model can recover the macroscopic transport equations derived from the Maxwell-Stefan equation for dilute solutes in three-phase systems. Compared with the analytical equation of state of solute and dynamic behavior, these results are proven to constitute a generalized framework to simulate solute distributions in three-phase flows, including compound soluble in one phase, compound adsorbed on single-interface, compound in two phases, and solute soluble in three phases. Moreover, numerical simulations of benchmark cases, such as phase decomposition, multilayered planar interfaces, and liquid lens, were performed to test the stability and efficiency of the model. Finally, the multiphase mass transfer and reaction in Janus droplet transport in a straight microchannel were well reproduced.
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Affiliation(s)
- Yu-Hang Fu
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - Lin Bai
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - Kai-Hong Luo
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom
| | - Yong Jin
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - Yi Cheng
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, P.R. China
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33
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He Y, Savagatrup S, Zarzar LD, Swager TM. Interfacial Polymerization on Dynamic Complex Colloids: Creating Stabilized Janus Droplets. ACS APPLIED MATERIALS & INTERFACES 2017; 9:7804-7811. [PMID: 28198607 DOI: 10.1021/acsami.6b15791] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Complex emulsions, including Janus droplets, are becoming increasingly important in pharmaceuticals and medical diagnostics, the fabrication of microcapsules for drug delivery, chemical sensing, E-paper display technologies, and optics. Because fluid Janus droplets are often sensitive to external perturbation, such as unexpected changes in the concentration of the surfactants or surface-active biomolecules in the environment, stabilizing their morphology is critical for many real-world applications. To endow Janus droplets with resistance to external chemical perturbations, we demonstrate a general and robust method of creating polymeric hemispherical shells via interfacial free-radical polymerization on the Janus droplets. The polymeric hemispherical shells were characterized by optical and fluorescence microscopy, scanning electron microscopy, and confocal laser scanning microscopy. By comparing phase diagrams of a regular Janus droplet and a Janus droplet with the hemispherical shell, we show that the formation of the hemispherical shell nearly doubles the range of the Janus morphology and maintains the Janus morphology upon a certain degree of external perturbation (e.g., adding hydrocarbon-water or fluorocarbon-water surfactants). We attribute the increased stability of the Janus droplets to (1) the surfactant nature of polymeric shell formed and (2) increase in interfacial tension between hydrocarbon and fluorocarbon due to polymer shell formation. This finding opens the door of utilizing these stabilized Janus droplets in a demanding environment.
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Affiliation(s)
- Yuan He
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology , Cambridge Massachusetts 02139, United States
| | - Suchol Savagatrup
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology , Cambridge Massachusetts 02139, United States
| | - Lauren D Zarzar
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology , Cambridge Massachusetts 02139, United States
- Department of Materials Science and Engineering and Department of Chemistry, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Timothy M Swager
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology , Cambridge Massachusetts 02139, United States
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34
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LIU ZM, YANG Y, DU Y, PANG Y. Advances in Droplet-Based Microfluidic Technology and Its Applications. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1016/s1872-2040(17)60994-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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35
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Kobayashi Y, Arai N. Self-Assembly and Viscosity Behavior of Janus Nanoparticles in Nanotube Flow. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:736-743. [PMID: 28056173 DOI: 10.1021/acs.langmuir.6b02694] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Janus nanoparticles (JNPs) have received considerable attention because of their characteristic physical properties that are due to more than two distinct chemical or physical surfaces. We investigated the rheological properties of a JNP solution in the nanotubes using a computer simulation. Prediction and control of the self-assembly of colloidal nanoparticles is of critical importance in materials chemistry and engineering. Herein, we show computer simulation evidence of a new type of velocity profile and a hallmark shear-thinning behavior by confining a JNP solution to a nanotube with hydrophobic and hydrophilic wall surfaces. We derived curves of the shear rate versus the viscosity for two quasi-one-dimensional nanotube systems including diluted and concentrated volume fractions of JNP solutions. For the diluted system, under relatively low shear rates, shear-thinning behavior with a moderate slope or behavior similar to a Newtonian fluid is observed because of the clustering of JNPs. Under relatively high shear rates, the slope of shear thinning changes markedly because the self-assembled structures are rearranged. Moreover, for concentrated systems, when the nanotube wall is hydrophobic, new characteristic velocity profiles that have not been reported before are observed. Our simulation offers a guide to control the rheological properties of JNP solutions by the chemical patterns on the surfaces of nanochannels, the effect of confinement, and the self-assembled structure.
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Affiliation(s)
- Yusei Kobayashi
- Department of Mechanical Engineering, Kindai University , Osaka, Japan
| | - Noriyoshi Arai
- Department of Mechanical Engineering, Kindai University , Osaka, Japan
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36
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Armada-Moreira A, Taipaleenmäki E, Itel F, Zhang Y, Städler B. Droplet-microfluidics towards the assembly of advanced building blocks in cell mimicry. NANOSCALE 2016; 8:19510-19522. [PMID: 27858045 DOI: 10.1039/c6nr07807a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Therapeutic cell mimicry is an approach in nanomedicine aiming at substituting for missing or lost cellular functions employing nature-inspired concepts. Pioneered decades ago, only now is this technology empowered with the arsenal of nanotechnological tools and ready to provide radically new solutions such as assembling synthetic organelles and artificial cells. One of these tools is droplet microfluidics (D-μF), which provides the flexibility to generate cargo-loaded particles with tunable size and shape in a fast and reliable manner, an essential requirement in cell mimicry. This minireview aims at outlining the developments in D-μF from the past four years focusing on the assembly of nanoparticles, Janus-shaped and other non-spherical particles as well as their loading with biological payloads.
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Affiliation(s)
- Adam Armada-Moreira
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus, Denmark. and Instituto de Farmacologia e Neurociências, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal and Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Essi Taipaleenmäki
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus, Denmark.
| | - Fabian Itel
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus, Denmark.
| | - Yan Zhang
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus, Denmark.
| | - Brigitte Städler
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus, Denmark.
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37
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Varma VB, Ray A, Wang ZM, Wang ZP, Ramanujan RV. Droplet Merging on a Lab-on-a-Chip Platform by Uniform Magnetic Fields. Sci Rep 2016; 6:37671. [PMID: 27892475 PMCID: PMC5124862 DOI: 10.1038/srep37671] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 11/01/2016] [Indexed: 02/07/2023] Open
Abstract
Droplet microfluidics offers a range of Lab-on-a-chip (LoC) applications. However, wireless and programmable manipulation of such droplets is a challenge. We address this challenge by experimental and modelling studies of uniform magnetic field induced merging of ferrofluid based droplets. Control of droplet velocity and merging was achieved through uniform magnetic field and flow rate ratio. Conditions for droplet merging with respect to droplet velocity were studied. Merging and mixing of colour dye + magnetite composite droplets was demonstrated. Our experimental and numerical results are in good agreement. These studies are useful for wireless and programmable droplet merging as well as mixing relevant to biosensing, bioassay, microfluidic-based synthesis, reaction kinetics, and magnetochemistry.
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Affiliation(s)
- V B Varma
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - A Ray
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Z M Wang
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Z P Wang
- Singapore Institute of Manufacturing Technology, 71 Nanyang Dr, 638075, Singapore
| | - R V Ramanujan
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
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38
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Yan Z, Clark IC, Abate AR. Rapid Encapsulation of Cell and Polymer Solutions with Bubble-Triggered Droplet Generation. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600297] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zihao Yan
- Bioengineering and Therapeutic Sciences; California Institute for Quantitative Biosciences (QB3); University of California San Francisco; 1700 4th Street, Byers Hall 303C San Francisco CA 94158 USA
| | - Iain C. Clark
- Bioengineering and Therapeutic Sciences; California Institute for Quantitative Biosciences (QB3); University of California San Francisco; 1700 4th Street, Byers Hall 303C San Francisco CA 94158 USA
| | - Adam R. Abate
- Bioengineering and Therapeutic Sciences; California Institute for Quantitative Biosciences (QB3); University of California San Francisco; 1700 4th Street, Byers Hall 303C San Francisco CA 94158 USA
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39
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Heida T, Neubauer JW, Seuss M, Hauck N, Thiele J, Fery A. Mechanically Defined Microgels by Droplet Microfluidics. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600418] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Thomas Heida
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
| | - Jens W. Neubauer
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
| | - Maximilian Seuss
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
| | - Nicolas Hauck
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
- Leibniz Research Cluster (LRC); Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
| | - Julian Thiele
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
- Leibniz Research Cluster (LRC); Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
| | - Andreas Fery
- Institute of Physical Chemistry and Polymer Physics; Leibniz-Institut für Polymerforschung Dresden e.V; Hohe Str. 6 01069 Dresden Germany
- Department of Physical Chemistry of Polymeric Materials; Technische Universität Dresden; Hohe Str. 6 01069 Dresden Germany
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40
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Nisisako T. Recent advances in microfluidic production of Janus droplets and particles. Curr Opin Colloid Interface Sci 2016. [DOI: 10.1016/j.cocis.2016.05.003] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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41
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Ng YH, Tay SW, Hong L. Donut-like hybrid latex comprising discrete thermoplastic lobe and thermosetting shell. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.06.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Arias V, Odent J, Raquez JM, Dubois P, Odelius K, Albertsson AC. Toward "Green" Hybrid Materials: Core-Shell Particles with Enhanced Impact Energy Absorbing Ability. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2016; 4:3757-3765. [PMID: 29503773 PMCID: PMC5828709 DOI: 10.1021/acssuschemeng.6b00397] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 05/19/2016] [Indexed: 06/08/2023]
Abstract
Restrained properties of "green" degradable products drive the creation of materials with innovative structures and retained eco-attributes. Herein, we introduce the creation of impact modifiers in the form of core-shell (CS) particles toward the creation of "green" composite materials. Particles with CS structure constituted of PLA stereocomplex (PLASC) and a rubbery phase of poly(ε-caprolactone-co-d,l-lactide) (P[CL-co-LA]) were successfully achieved by spray droplet atomization. A synergistic association of the soft P[CL-co-LA] and hard PLASC domains in the core-shell structure induced unique thermo-mechanical effects on the PLA-based composites. The core-shell particles enhanced the crystallization of PLA matrices by acting as nucleating agents. The core-shell particles functioned efficiently as impact modifiers with minimal effect on the composites stiffness and strength. These findings provide a new platform for scalable design of polymeric-based structures to be used in the creation of advanced degradable materials.
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Affiliation(s)
- Veluska Arias
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, SE-100 44, Stockholm, Sweden
| | - Jeremy Odent
- Laboratory
of Polymeric and Composite Materials (LPCM), Center of Innovation
and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc 23, B-7000 Mons, Belgium
| | - Jean-Marie Raquez
- Laboratory
of Polymeric and Composite Materials (LPCM), Center of Innovation
and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc 23, B-7000 Mons, Belgium
- Materia Nova, Materials
R & D Center, Parc Initialis, Avenue Copernic 1, B-7000 Mons, Belgium
| | - Philippe Dubois
- Laboratory
of Polymeric and Composite Materials (LPCM), Center of Innovation
and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc 23, B-7000 Mons, Belgium
- Materia Nova, Materials
R & D Center, Parc Initialis, Avenue Copernic 1, B-7000 Mons, Belgium
| | - Karin Odelius
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, SE-100 44, Stockholm, Sweden
| | - Ann-Christine Albertsson
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, SE-100 44, Stockholm, Sweden
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43
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Fu Y, Zhao S, Bai L, Jin Y, Cheng Y. Numerical study of double emulsion formation in microchannels by a ternary Lattice Boltzmann method. Chem Eng Sci 2016. [DOI: 10.1016/j.ces.2016.02.036] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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Zhang Y, Shitta A, Meredith JC, Behrens SH. Bubble Meets Droplet: Particle-Assisted Reconfiguration of Wetting Morphologies in Colloidal Multiphase Systems. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:3309-3319. [PMID: 27167839 DOI: 10.1002/smll.201600799] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Indexed: 06/05/2023]
Abstract
Wetting phenomena are ubiquitous in nature and play key functions in various industrial processes and products. When a gas bubble encounters an oil droplet in an aqueous medium, it can experience either partial wetting or complete engulfment by the oil. Each of these morphologies can have practical benefits, and controlling the morphology is desirable for applications ranging from particle synthesis to oil recovery and gas flotation. It is known that the wetting of two fluids within a fluid medium depends on the balance of interfacial tensions and can thus be modified with surfactant additives. It is reported that colloidal particles, too, can be used to promote both wetting and dewetting in multifluid systems. This study demonstrates the surfactant-free tuning and dynamic reconfiguration of bubble-droplet morphologies with the help of cellulosic particles. It further shows that the effect can be attributed to particle adsorption at the fluid interfaces, which can be probed by interfacial tensiometry, making particle-induced transitions in the wetting morphology predictable. Finally, particle adsorption at different rates to air-water and oil-water interfaces can even lead to slow, reentrant wetting behavior not familiar from particle-free systems.
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Affiliation(s)
- Yi Zhang
- School of Chemical & Biomoelcular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0100, USA
| | - Abiola Shitta
- School of Chemical & Biomoelcular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0100, USA
| | - J Carson Meredith
- School of Chemical & Biomoelcular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0100, USA
| | - Sven H Behrens
- School of Chemical & Biomoelcular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0100, USA
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45
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Ge XH, Huang JP, Xu JH, Chen J, Luo GS. Water-oil Janus emulsions: microfluidic synthesis and morphology design. SOFT MATTER 2016; 12:3425-3430. [PMID: 26947622 DOI: 10.1039/c6sm00130k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this work we developed a facile method to prepare water-oil Janus emulsions in situ with tunable morphologies by using a double-bore capillary microfluidic device. In addition, by combining the theory model and our liquids' properties, we propose a method to design the morphology of water-oil Janus emulsions. To systematically research Janus morphologies we combined the theory model and the fluids' properties. Under the model guidance, we carefully selected the liquids system where only the interfacial tension between the water phase and the continuous phase changed while keeping the other two interfacial tensions unchanged. Thus we could adjust the Janus morphology by changing the surfactant mass fraction in the continuous phase. In addition, with the double-bore capillary, we prepared water-oil Janus emulsions with a large flow ratio range. By adjusting the flow ratio and the surfactant mass fraction, we successfully prepared Janus emulsions with gradual morphology changes, which would be meaningful in fields that have a high demand for morphology designing of amphiphilic Janus particles.
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Affiliation(s)
- Xue-Hui Ge
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
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46
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Microfluidic generation of magnetic-fluorescent Janus microparticles for biomolecular detection. Talanta 2016; 151:126-131. [PMID: 26946019 DOI: 10.1016/j.talanta.2016.01.024] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 01/08/2016] [Accepted: 01/12/2016] [Indexed: 11/21/2022]
Abstract
Fluorescent magnetic multifunctional microparticles were fabricated by a facile droplet microfluidic strategy. Two sodium alginate streams, one doped with Fe3O4 nanoparticles (NPs) and the other with CdSe/ZnS quantum dots, were introduced into a flow-focusing channel as a type of parallel laminar flow to form droplets containing two distinct parts. Then, at the serpentine channel, the Ca(2+) in the oil phase diffused into the droplets, causing the solidification of the droplets. Thus, the Janus microparticles with excellent magnetic/fluorescent properties formed. The flow conditions were optimized and the effects of the flow rates on magnetic/fluorescent compositions were carefully investigated. Luminescent labeling and magnetic separation were simultaneously realized with the newly designed microparticles. Moreover, spatial separation between Fe3O4 NPs and QDs prevented the interference of QDs photoluminescence by the magnetic particles. The as-prepared fluorescent magnetic Janus particles were also successfully employed for DNA assay, which demonstrated the potential of the multifunctional microbeads in biological applications.
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47
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Sun XT, Yang CG, Xu ZR. Controlled production of size-tunable Janus droplets for submicron particle synthesis using an electrospray microfluidic chip. RSC Adv 2016. [DOI: 10.1039/c5ra24531a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Controllable fabrication of Janus droplets and submicron Janus particles using an electrospray microfluidic approach has been developed.
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Affiliation(s)
- Xiao-Ting Sun
- Research Center for Analytical Sciences
- Northeastern University
- Shenyang
- P. R. China
| | - Chun-Guang Yang
- Research Center for Analytical Sciences
- Northeastern University
- Shenyang
- P. R. China
| | - Zhang-Run Xu
- Research Center for Analytical Sciences
- Northeastern University
- Shenyang
- P. R. China
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48
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Formation of Polymeric Hollow Microcapsules and Microlenses Using Gas-in-Organic-in-Water Droplets. MICROMACHINES 2015. [DOI: 10.3390/mi6050622] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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49
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Zarzar LD, Sresht V, Sletten EM, Kalow JA, Blankschtein D, Swager TM. Dynamically reconfigurable complex emulsions via tunable interfacial tensions. Nature 2015; 518:520-4. [PMID: 25719669 DOI: 10.1038/nature14168] [Citation(s) in RCA: 239] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 12/24/2014] [Indexed: 01/14/2023]
Abstract
Emulsification is a powerful, well-known technique for mixing and dispersing immiscible components within a continuous liquid phase. Consequently, emulsions are central components of medicine, food and performance materials. Complex emulsions, including Janus droplets (that is, droplets with faces of differing chemistries) and multiple emulsions, are of increasing importance in pharmaceuticals and medical diagnostics, in the fabrication of microparticles and capsules for food, in chemical separations, in cosmetics, and in dynamic optics. Because complex emulsion properties and functions are related to the droplet geometry and composition, the development of rapid, simple fabrication approaches allowing precise control over the droplets' physical and chemical characteristics is critical. Significant advances in the fabrication of complex emulsions have been made using a number of procedures, ranging from large-scale, less precise techniques that give compositional heterogeneity using high-shear mixers and membranes, to small-volume but more precise microfluidic methods. However, such approaches have yet to create droplet morphologies that can be controllably altered after emulsification. Reconfigurable complex liquids potentially have great utility as dynamically tunable materials. Here we describe an approach to the one-step fabrication of three- and four-phase complex emulsions with highly controllable and reconfigurable morphologies. The fabrication makes use of the temperature-sensitive miscibility of hydrocarbon, silicone and fluorocarbon liquids, and is applied to both the microfluidic and the scalable batch production of complex droplets. We demonstrate that droplet geometries can be alternated between encapsulated and Janus configurations by varying the interfacial tensions using hydrocarbon and fluorinated surfactants including stimuli-responsive and cleavable surfactants. This yields a generalizable strategy for the fabrication of multiphase emulsions with controllably reconfigurable morphologies and the potential to create a wide range of responsive materials.
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Affiliation(s)
- Lauren D Zarzar
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Vishnu Sresht
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Ellen M Sletten
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Julia A Kalow
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Daniel Blankschtein
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Timothy M Swager
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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50
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Kim YS, Lee HM, Kim JH, Joo J, Cheong IW. Hydrogel adsorbents of poly(N-isopropylacrylamide-co-methacryloyloxymethyl-12-crown-4) for Li+ recovery prepared by droplet microfluidics. RSC Adv 2015. [DOI: 10.1039/c4ra11527a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This article describes the synthesis and application of hydrogel adsorbents for lithium ion (Li+) recovery from seawater.
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Affiliation(s)
- Yong Seok Kim
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 120-749
- South Korea
| | - Hyang Moo Lee
- Department of Applied Chemistry
- Kyungpook National University
- Daegu 702-701
- South Korea
| | - Jung Hyun Kim
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 120-749
- South Korea
| | - Jin Joo
- Department of Applied Chemistry
- Kyungpook National University
- Daegu 702-701
- South Korea
| | - In Woo Cheong
- Department of Applied Chemistry
- Kyungpook National University
- Daegu 702-701
- South Korea
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