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He H, Hong M, Yang F, Wang G, Wang Y, Yang M, Huang D, Liu H, Wang Y. Preparation of Controlled Multicompartmental Gel Microcarriers Based on Aqueous Two-Phase Emulsions for 3D Partitioned Cell Coculture In Vitro. Biomacromolecules 2024; 25:4469-4481. [PMID: 38877974 DOI: 10.1021/acs.biomac.4c00516] [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: 07/09/2024]
Abstract
A facile method was proposed for preparing controllable multicompartment gel microcarriers using an aqueous two-phase emulsion system. By leveraging the density difference between the upper polyethylene glycol solution and the lower dextran-calcium chloride (CaCl2) solution in the collection solution and the high viscosity of the lower solution, controllable fusion of core-shell droplets made by coextrusion devices was achieved at the water/water (w/w) interface to fabricate microcarriers with separated core compartments. By adjusting the sodium alginate concentration, collected solution composition, and number of fused liquid droplets, the pore size, shape, and number of compartments could be controlled. Caco-2 and HepG2 cells were encapsulated in different compartments to establish gut-liver coculture models, exhibiting higher viability and proliferation compared to monoculture models. Notably, significant differences in cytokine expression and functional proteins were observed between the coculture and monoculture models. This method provides new possibilities for preparing complex and functional three-dimensional coculture materials.
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Affiliation(s)
- Huatao He
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
| | - Meiying Hong
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
| | - Feng Yang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
| | - Guanxiong Wang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
| | - Yilan Wang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
| | - Menghan Yang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
| | - Deqing Huang
- School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China P. R. China
| | - Hong Liu
- Department of General Surgery, Wuxi No.5 People's Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214061, P. R. China
| | - Yaolei Wang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
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Chen J, Shen H, Heng Y, Wang S, Ardekani A, Yang Y, Hu Y. Droplet Microfluidics-Assisted Fabrication of Shape Controllable Iron-Alginate Microgels with Fluorescent Property. Macromol Rapid Commun 2024; 45:e2400084. [PMID: 38653451 DOI: 10.1002/marc.202400084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Droplet-based microfluidics-assisted fabrication of alginate microgels has extensive applications in biomaterials, biomedicines, and related fields. This approach is typically achieved by crosslinking droplets of an aqueous solution of sodium alginate with various divalent and trivalent ions, such as Ca2+, Ba2+, Sr2+, etc. Despite the exceptional features exhibited by bulk alginate hydrogels when using iron ions as the crosslinking reagent, including stimulus responsiveness and complex chemistry, no attention has been given to studying the fabrication of Fe-alginate microgels through droplet microfluidics. In this work, a facile method is presented for fabricating Fe-alginate microgels using single emulsion droplets as templates and an off-chip crosslinking technique to solidify the droplets. The morphologies of the resulting microgels can be systematically adjusted by manipulating different parameters such as viscosities and ionic strength of the collecting solutions. It should be noted that these resulting microgels undergo a color change from light brown to dark brown due to presumed self-oxidation of iron ions within their skeleton structure. Furthermore, these Fe-alginate microgels are functionalized by decorating them with a positively charged linear polymer via electrostatic interactions to impart them with stable fluorescent property. These functionalized Fe-alginate microgels may find potential applications in drug delivery carriers and biomimetic structures.
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Affiliation(s)
- Jie Chen
- Department of Materials Science and Engineering, School of Physical Science and Engineering, Beijing Jiaotong University, Beijing, 100044, China
| | - Hanyu Shen
- Department of Materials Science and Engineering, School of Physical Science and Engineering, Beijing Jiaotong University, Beijing, 100044, China
| | - Yicheng Heng
- Department of Materials Science and Engineering, School of Physical Science and Engineering, Beijing Jiaotong University, Beijing, 100044, China
| | - Songhe Wang
- Department of Materials Science and Engineering, School of Physical Science and Engineering, Beijing Jiaotong University, Beijing, 100044, China
| | - Arezoo Ardekani
- Department of Mathematics, School of Mechanical Engineering, Purdue University, West Lafayette, IN, 47906, USA
| | - Yajiang Yang
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China
| | - Yuandu Hu
- Department of Materials Science and Engineering, School of Physical Science and Engineering, Beijing Jiaotong University, Beijing, 100044, China
- State Key Laboratory of Molecular Engineering of Polymers (Fudan University), Shanghai, 200438, China
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3
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Panigrahi SK, Das S, Majumdar S. Unveiling the potentials of hydrophilic and hydrophobic polymers in microparticle systems: Opportunities and challenges in processing techniques. Adv Colloid Interface Sci 2024; 326:103121. [PMID: 38457900 DOI: 10.1016/j.cis.2024.103121] [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: 12/18/2023] [Revised: 02/24/2024] [Accepted: 02/28/2024] [Indexed: 03/10/2024]
Abstract
Conventional drug delivery systems are associated with various shortcomings, including low bioavailability and limited control over release. Biodegradable polymeric microparticles have emerged as versatile carriers in drug delivery systems addressing all these challenges. This comprehensive review explores the dynamic landscape of microparticles, considering the role of hydrophilic and hydrophobic materials. Within the continuously evolving domain of microparticle preparation methods, this review offers valuable insights into the latest advancements and addresses the factors influencing microencapsulation, which is pivotal for harnessing the full potential of microparticles. Exploration of the latest research in this dynamic field unlocks the possibilities of optimizing microencapsulation techniques to produce microparticles of desired characteristics and properties for different applications, which can help contribute to the ongoing evolution in the field of pharmaceutical science.
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Affiliation(s)
- Subrat Kumar Panigrahi
- Department of Chemical Engineering, Indian Institute of Technology, Hyderabad, Telangana 502285, India
| | - Sougat Das
- Department of Chemical Engineering, Indian Institute of Technology, Hyderabad, Telangana 502285, India
| | - Saptarshi Majumdar
- Department of Chemical Engineering, Indian Institute of Technology, Hyderabad, Telangana 502285, India.
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Wu Y, Lv B, Wang S, Liu Z, Chen XD, Cheng Y. Study of molecular interaction and texture characteristics of hydrocolloid-mixed alginate microspheres: As a shell to encapsulate multiphase oil cores. Carbohydr Polym 2024; 326:121603. [PMID: 38142092 DOI: 10.1016/j.carbpol.2023.121603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/31/2023] [Accepted: 11/14/2023] [Indexed: 12/25/2023]
Abstract
This work investigates the molecular interaction of hydrocolloids (xanthan gum (XG), hydroxyethyl cellulose (HEC), carbomer (CBM) and hymagic™-4D (HA)) with sodium alginate (SA) in microspheres in detail. The molecular interaction of hydrocolloids with SA are demonstrated by the rheological property analysis of the mixed solutions as well as the morphology structure and texture characteristics studies of the microspheres. It is found that the hydrocolloids (XG, HEC and CBM) with branches or capable to coil are able to form complex networks with SA through molecular interactions which hinders the free diffusion of calcium ions and changes the texture characteristics of microspheres. In addition, the mixed solutions (SA-XG and SA-HEC) with complex networks and do not have a chelating effect on calcium ions are used to form the shell of the microcapsules through droplet microfluidic technology, and stable with soft microcapsules encapsulating multiphase oil cores have been successfully prepared. At the same time, the textural properties of microcapsules are quantized, which are related to human sensory properties. The developed stable and soft microcapsules which have the properties of sensory comfort are expected to be applied in the personal care industry and a variety of fields.
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Affiliation(s)
- Yuting Wu
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Boya Lv
- Life Quality Engineering Interest Group, School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou 215152, Jiangsu Province, China; Xiao Dong Pro-health (Suzhou) Instrumentation Co Ltd, Suzhou 215152, Jiangsu Province, China
| | - Shiteng Wang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Zhe Liu
- Bloomage Biotechnology Co., Ltd., Jinan 250000, Shandong Province, China
| | - Xiao Dong Chen
- Life Quality Engineering Interest Group, School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou 215152, Jiangsu Province, China
| | - Yi Cheng
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
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5
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Xie Y, Liu C, Zhang J, Li Y, Li B, Liu S. Crosslinking alginate at water-in-water Pickering emulsions interface to control the interface structure and enhance the stress resistance of the encapsulated probiotics. J Colloid Interface Sci 2024; 655:653-663. [PMID: 37976739 DOI: 10.1016/j.jcis.2023.10.159] [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: 09/19/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
HYPOTHESIS The strategies for stabilizing water-in-water (W/W) emulsions include the adsorption of solid particles at the water-water interface and the generation of interfacial films. We hypothesize that if sodium alginate is crosslinked at the water-water interface of W/W Pickering emulsions, the microstructure and rheological properties of the emulsions could be improved, thus enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion. EXPERIMENTS The W/W Pickering emulsions comprised a dispersed maltodextrin (MD) phase in a continuous hydroxypropyl methylcellulose (HPMC) phase. The crosslinking W/W Pickering emulsion with fine-tuned internal structure was designed by leaching the CaCO3 particles packed in the dispersed phase to release Ca2+ crosslinked with sodium alginate. FINDINGS Confocal laser scanning microscope results revealed sodium alginate crosslinked with Ca2+ at the W/W interface. The rheological results of the crosslinking W/W Pickering emulsions suggested that the loss modulus (G″) was higher than the energy storage modulus (G'). The microstructure indicated that the emulsions formed a dense porous network structure after crosslinking conditions. The viable cell count of Lactobacillus helveticus CICC 22536 (LC) encapsulated in crosslinking W/W Pickering emulsion after simulated gastrointestinal digestion was 7.563 × 107 CFU/mL, which was three orders of magnitude higher than that of naked cells.
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Affiliation(s)
- Yunxiao Xie
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Cui Liu
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jie Zhang
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yan Li
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Bin Li
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shilin Liu
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China.
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6
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Luan J, Kuijken PF, Chen W, Wang D, Charleston LA, Wilson DA. Microfluidic Design of Streamlined Alginate Hydrogel Micromotors with Run and Tumble Motion Patterns. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2304995. [PMID: 37828568 DOI: 10.1002/advs.202304995] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/24/2023] [Indexed: 10/14/2023]
Abstract
Autonomous micromotors demonstrate remarkable advancements in biomedical applications. A noteworthy example is streamlined motors, which display enhanced movement efficiency with low fluid-resistance. However, existing streamlined motors, primarily constructed from inorganic materials, present challenges due to their complex fabrication procedures and lack of a soft interface for interaction with biological systems. Herein, a novel design of biodegradable streamlined alginate hydrogel micromotors with a teardrop shape by microfluidics is introduced. The platform enables the high-throughput fabrication of monodisperse micromotors with varied dimensions. By incorporating Pt-coated Fe3 O4 nanoparticles, micromotors are equipped with dual capabilities of catalytic propulsion and accurate magnetic guidance. Through precisely tuning the localization regions of catalysts within the micromotors, the streamlined hydrogel micromotors not only exhibit enhanced propelling efficiency, but also accomplish distinct motion patterns of run and tumble. The design provides insights for developing advanced micromotors capable of executing intricate tasks across diverse application scenarios.
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Affiliation(s)
- Jiabin Luan
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
| | - Peter F Kuijken
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
| | - Wen Chen
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
| | - Danni Wang
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
| | - Levy A Charleston
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
| | - Daniela A Wilson
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
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Daradmare S, Son H, Lee CS. Fabrication and Morphological Control of Nonspherical Alginate Hydrogel Particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:13876-13889. [PMID: 37725665 DOI: 10.1021/acs.langmuir.3c01404] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
We report a simple platform for the fabrication of nonspherical alginate hydrogel particles using a dripping method. Hydrogel particles with novel morphologies, such as vortex ring, teardrop, disk, sphere, and mushroom, are fabricated by controlling various parameters. We monitored the deformation process of the hydrogel particles after they penetrated the crosslinking solution using a high-speed camera. Then, we proposed a mechanism showing a unique morphological transformation from a spherical to a disk shape. We demonstrated how controlling the collecting height that causes the drop impact force against the crosslinking solution surface was critical to producing hydrogel particles with these intriguing shapes. In particular, disk-shaped alginate particles show their ability as potential platforms for culturing mouse adrenocortical tumor cells (Y1) and a hippocampal neuronal cell (HT-22). To modify alginate particles, cell-adhesive gelatin is incorporated into the alginate matrix and then alginate particles are coated with poly(allylamine hydrochloride). Two modified alginate particles show good adhesion and proliferation rates on their surfaces. In particular, the hybrid hydrogel particles provide great potential to be developed into promising materials for cell culture, drug delivery, and tissue engineering.
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Affiliation(s)
- Sneha Daradmare
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Huiseong Son
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Chang-Soo Lee
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
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8
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Asadi S, Nelson AZ, Doyle PS. Producing shape-engineered alginate particles using viscoplastic fluids. SOFT MATTER 2022; 18:6848-6856. [PMID: 36043375 DOI: 10.1039/d2sm00621a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Non-spherical hydrogel particles are of fundamental interest and can find use in a variety of applications ranging from pharmaceuticals to biomedical to food. Here, we report a new method that leverages the yield stress property of viscoplastic fluids to synthesize shape-engineered alginate particles. By dripping an aqueous viscoplastic solution composed of sodium alginate and a yield-stress material into an ionic gelation bath, droplets are controllably deformed and crosslinked, producing a wide assortment of shapes. We find that by tuning the yield stress of the solution and the nozzle tip orientation, a range of shapes from symmetric and near-spherical, to asymmetric and anisotropic (e.g., egg-, rice grain-, arc-, ring-, snail shell-, tear-, and tadpole-like) can be produced. We explain our observations using scaling analysis of the forces exerted on the droplet at different stages of particle production. We show that the main factors that determine the degree of droplet deformation during bath entry and the final appearance of the alginate particles are the initial shape of the droplets, the timescales of the viscoplastic fluid relaxation versus the crosslinking reaction, and the physico-chemical properties of the yield-stress material.
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Affiliation(s)
- Sima Asadi
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Arif Z Nelson
- Critical Analytics for Manufacturing Personalized-Medicine, Singapore-MIT Alliance for Research and Technology, Singapore 138602, Singapore
| | - Patrick S Doyle
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
- Critical Analytics for Manufacturing Personalized-Medicine, Singapore-MIT Alliance for Research and Technology, Singapore 138602, Singapore
- Harvard Medical School Initiative for RNA Medicine, Boston, MA 02215, USA
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9
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Łętocha A, Miastkowska M, Sikora E. Preparation and Characteristics of Alginate Microparticles for Food, Pharmaceutical and Cosmetic Applications. Polymers (Basel) 2022; 14:polym14183834. [PMID: 36145992 PMCID: PMC9502979 DOI: 10.3390/polym14183834] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/08/2022] [Accepted: 09/11/2022] [Indexed: 11/16/2022] Open
Abstract
Alginates are the most widely used natural polymers in the pharmaceutical, food and cosmetic industries. Usually, they are applied as a thickening, gel-forming and stabilizing agent. Moreover, the alginate-based formulations such as matrices, membranes, nanospheres or microcapsules are often used as delivery systems. Alginate microparticles (AMP) are biocompatible, biodegradable and nontoxic carriers, applied to encapsulate hydrophilic active substances, including probiotics. Here, we report the methods most frequently used for AMP production and encapsulation of different actives. The technological parameters important in the process of AMP preparation, such as alginate concentration, the type and concentration of other reagents (cross-linking agents, oils, emulsifiers and pH regulators), agitation speed or cross-linking time, are reviewed. Furthermore, the advantages and disadvantages of alginate microparticles as delivery systems are discussed, and an overview of the active ingredients enclosed in the alginate carriers are presented.
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10
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Xu Y, Zhu H, Denduluri A, Ou Y, Erkamp NA, Qi R, Shen Y, Knowles TPJ. Recent Advances in Microgels: From Biomolecules to Functionality. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200180. [PMID: 35790106 DOI: 10.1002/smll.202200180] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/15/2022] [Indexed: 06/15/2023]
Abstract
The emerging applications of hydrogel materials at different length scales, in areas ranging from sustainability to health, have driven the progress in the design and manufacturing of microgels. Microgels can provide miniaturized, monodisperse, and regulatable compartments, which can be spatially separated or interconnected. These microscopic materials provide novel opportunities for generating biomimetic cell culture environments and are thus key to the advances of modern biomedical research. The evolution of the physical and chemical properties has, furthermore, highlighted the potentials of microgels in the context of materials science and bioengineering. This review describes the recent research progress in the fabrication, characterization, and applications of microgels generated from biomolecular building blocks. A key enabling technology allowing the tailoring of the properties of microgels is their synthesis through microfluidic technologies, and this paper highlights recent advances in these areas and their impact on expanding the physicochemical parameter space accessible using microgels. This review finally discusses the emerging roles that microgels play in liquid-liquid phase separation, micromechanics, biosensors, and regenerative medicine.
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Affiliation(s)
- Yufan Xu
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Hongjia Zhu
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Akhila Denduluri
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Yangteng Ou
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Nadia A Erkamp
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Runzhang Qi
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Yi Shen
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia
- The University of Sydney Nano Institute, University of Sydney, Sydney, NSW, 2006, Australia
| | - Tuomas P J Knowles
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
- Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE, UK
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11
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Bjørge IM, Correia CR, Mano JF. Hipster microcarriers: exploring geometrical and topographical cues of non-spherical microcarriers in biomedical applications. MATERIALS HORIZONS 2022; 9:908-933. [PMID: 34908074 DOI: 10.1039/d1mh01694f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Structure and organisation are key aspects of the native tissue environment, which ultimately condition cell fate via a myriad of processes, including the activation of mechanotransduction pathways. By modulating the formation of integrin-mediated adhesions and consequently impacting cell contractility, engineered geometrical and topographical cues may be introduced to activate downstream signalling and ultimately control cell morphology, proliferation, and differentiation. Microcarriers appear as attractive vehicles for cell-based tissue engineering strategies aiming to modulate this 3D environment, but also as vehicles for cell-free applications, given the ease in tuning their chemical and physical properties. In this review, geometry and topography are highlighted as two preponderant features in actively regulating interactions between cells and the extracellular matrix. While most studies focus on the 2D environment, we focus on how the incorporation of these strategies in 3D systems could be beneficial. The techniques applied to design 3D microcarriers with unique geometries and surface topographical cues are covered, as well as specific tissue engineering approaches employing these microcarriers. In fact, successfully achieving a functional histoarchitecture may depend on a combination of fine-tuned geometrically shaped microcarriers presenting intricately tailored topographical cues. Lastly, we pinpoint microcarrier geometry as a key player in cell-free biomaterial-based strategies, and its impact on drug release kinetics, the production of steerable microcarriers to target tumour cells, and as protein or antibody biosensors.
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Affiliation(s)
- Isabel M Bjørge
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal.
| | - Clara R Correia
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal.
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal.
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12
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Dias Meirelles AA, Rodrigues Costa AL, Michelon M, Viganó J, Carvalho MS, Cunha RL. Microfluidic approach to produce emulsion-filled alginate microgels. J FOOD ENG 2022. [DOI: 10.1016/j.jfoodeng.2021.110812] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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13
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Wang YL, Hu JJ. Sub-100-micron calcium-alginate microspheres: Preparation by nitrogen flow focusing, dependence of spherical shape on gas streams and a drug carrier using acetaminophen as a model drug. Carbohydr Polym 2021; 269:118262. [PMID: 34294295 DOI: 10.1016/j.carbpol.2021.118262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 12/28/2022]
Abstract
We developed a miniature gas-liquid coaxial flow device using glass capillaries, aiming to produce sub-100-μm Ca-alginate microspheres. Depending on collecting distance and the flow rates of nitrogen gas and alginate solution, however, Ca-alginate microparticles of different shapes were obtained. Spherical, monodisperse microparticles (microspheres) could only be obtained at certain gas flow rates and within a corresponding range of collecting distance. The result suggests that, for particles of this size, the gas flow rate and collecting distance are crucial for the formation of the spherical shape. We evaluated, as an example of its applications, the microsphere as a drug carrier using acetaminophen as a model drug. Large (~150 μm) and small (~70 μm) drug-loaded microspheres were prepared using two respective devices. Specifically, the drug-loaded microspheres were complexed with chitosan of different molecular weights. The dependence of in vitro drug release on the microsphere size and the chitosan molecular weight was examined. CHEMICAL COMPOUNDS STUDIED IN THIS ARTICLE: Alginic acid sodium salt (PubChem CID: 5102882); Chitosan (PubChem CID: 71853); Calcium chloride (PubChem CID: 5284359); Sodium chloride (PubChem CID: 5234); Acetaminophen (PubChem CID: 1983); Polydimethylsiloxane (PubChem CID: 24771); n-Octadecyltrimethoxysilane (PubChem CID: 76486).
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Affiliation(s)
- Ying-Lin Wang
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Jin-Jia Hu
- Department of Mechanical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan; Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan.
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14
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Design of alginate based micro‐gels via electro fluid dynamics to construct microphysiological cell culture systems. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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15
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Martins M, Silva KCG, Ávila PF, Sato ACK, Goldbeck R. Xylo-oligosaccharide microparticles with synbiotic potential obtained from enzymatic hydrolysis of sugarcane straw. Food Res Int 2021; 140:109827. [PMID: 33648164 DOI: 10.1016/j.foodres.2020.109827] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/01/2020] [Accepted: 10/04/2020] [Indexed: 01/22/2023]
Abstract
Synbiotic formulations and microencapsulation techniques have been explored in food industries to guarantee the viability of probiotic organisms; playing an important role in microbiota balance. Microparticles of alginate, gelatin and xylo-oligosaccharides (XOS) were produced by external gelation with the purpose of enhancing the survival rate of the probiotic L. acidophilus. XOS was obtained through enzymatic hydrolysis of xylan extracted from sugarcane straw, achieving more than 70% conversion and used for microparticle preparation. Microparticles containing 3% XOS provided greater cell protection during exposure to the gastrointestinal tract and during refrigerated storage; keeping 97.86 ± 0.44% of viability during 28 days of storage and enabling 87.50 ± 0.02% survival after digestive simulation. However, particles without XOS showed 84.49 ± 0.59% of viability after storage and 68.45 ± 0.03% after digestion assay. These results lead to promising applications in synbiotic and functional food formulations comprised of components requiring extended shelf-life, protection from gastrointestinal conditions and gradual bioactive delivery.
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Affiliation(s)
- Manoela Martins
- Bioprocess and Metabolic Engineering Laboratory, Department of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Karen Cristina Guedes Silva
- Process Engineering Laboratory, School of Food Engineering, University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - Patrícia Félix Ávila
- Bioprocess and Metabolic Engineering Laboratory, Department of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Ana Carla Kawazoe Sato
- Process Engineering Laboratory, School of Food Engineering, University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - Rosana Goldbeck
- Bioprocess and Metabolic Engineering Laboratory, Department of Food Engineering, University of Campinas, Campinas, SP, Brazil.
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Shen H, Cai S, Wu C, Yang W, Yu H, Liu L. Recent Advances in Three-Dimensional Multicellular Spheroid Culture and Future Development. MICROMACHINES 2021; 12:96. [PMID: 33477508 PMCID: PMC7831097 DOI: 10.3390/mi12010096] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 12/22/2022]
Abstract
Three-dimensional multicellular spheroids (MCSs) have received extensive attention in the field of biomedicine due to their ability to simulate the structure and function of tissues in vivo more accurately than traditional in vitro two-dimensional models and to simulate cell-cell and cell extracellular matrix (ECM) interactions. It has become an important in vitro three-dimensional model for tumor research, high-throughput drug screening, tissue engineering, and basic biology research. In the review, we first summarize methods for MCSs generation and their respective advantages and disadvantages and highlight the advances of hydrogel and microfluidic systems in the generation of spheroids. Then, we look at the application of MCSs in cancer research and other aspects. Finally, we discuss the development direction and prospects of MCSs.
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Affiliation(s)
- Honglin Shen
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (H.S.); (S.C.); (C.W.)
| | - Shuxiang Cai
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (H.S.); (S.C.); (C.W.)
| | - Chuanxiang Wu
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (H.S.); (S.C.); (C.W.)
| | - Wenguang Yang
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (H.S.); (S.C.); (C.W.)
| | - Haibo Yu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China; (H.Y.); (L.L.)
| | - Lianqing Liu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China; (H.Y.); (L.L.)
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17
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One-Step microfluidic synthesis of spherical and bullet-like alginate microcapsules with a core–shell structure. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125612] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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18
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19
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Qu F, Meng T, Dong Y, Sun H, Tang Q, Liu T, Wang Y. Aqueous Two-Phase Droplet-Templated Colloidosomes Composed of Self-Formed Particles via Spatial Confined Biomineralization. ACS APPLIED MATERIALS & INTERFACES 2019; 11:35613-35621. [PMID: 31505927 DOI: 10.1021/acsami.9b15086] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A facile and green approach is developed for fabricating colloidosomes with well-controlled size and structure from the microfluidic-generated aqueous two-phase system (ATPS) emulsion droplet. Unlike other methods that rely on self-assembly of externally added colloidal particles at the emulsion interface, urease-mediated biomineralization induced by "drainage" is introduced to form CaCO3 particles at the alginate emulsion interface for preparing Ca-alg@CaCO3 colloidosomes. Two types of bioactive molecules (bovine serum albumin and catalase) can be encapsulated with high efficiency (>85%) because of the partitioning effect of the ATPS and high viscosity of alginate solution. The encapsulated bioactive molecules can be controllably released by regulating the compactness of colloidosomes. Moreover, after being freeze-dried or dried at 37 °C, the activity of catalase in colloidosomes is obviously higher than that in alginate hydrogels, which confirms that the Ca-alg@CaCO3 structure has strong protection for inclusions. We believe that the biocompatible and controllable Ca-alg@CaCO3 colloidosomes possess great potential applications in bioencapsulation for foods, daily chemicals, and synthetic protocell formation.
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Affiliation(s)
- Fengmei Qu
- School of Life Sciences and Engineering , Southwest Jiaotong University , Chengdu , Sichuan 610031 , P. R. China
| | - Tao Meng
- School of Life Sciences and Engineering , Southwest Jiaotong University , Chengdu , Sichuan 610031 , P. R. China
| | - Yuman Dong
- School of Life Sciences and Engineering , Southwest Jiaotong University , Chengdu , Sichuan 610031 , P. R. China
| | - Hejia Sun
- School of Life Sciences and Engineering , Southwest Jiaotong University , Chengdu , Sichuan 610031 , P. R. China
| | - Qiming Tang
- School of Life Sciences and Engineering , Southwest Jiaotong University , Chengdu , Sichuan 610031 , P. R. China
| | - Tiantian Liu
- School of Life Sciences and Engineering , Southwest Jiaotong University , Chengdu , Sichuan 610031 , P. R. China
| | - Yaolei Wang
- School of Life Sciences and Engineering , Southwest Jiaotong University , Chengdu , Sichuan 610031 , P. R. China
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20
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Azarmanesh M, Bawazeer S, Mohamad AA, Sanati-Nezhad A. Rapid and Highly Controlled Generation of Monodisperse Multiple Emulsions via a One-Step Hybrid Microfluidic Device. Sci Rep 2019; 9:12694. [PMID: 31481702 PMCID: PMC6722102 DOI: 10.1038/s41598-019-49136-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 08/20/2019] [Indexed: 02/07/2023] Open
Abstract
Multiple Emulsions (MEs) contain a drop laden with many micro-droplets. A single-step microfluidic-based synthesis process of MEs is presented to provide a rapid and controlled generation of monodisperse MEs. The design relies on the interaction of three immiscible fluids with each other in subsequent droplet formation steps to generate monodisperse ME constructs. The design is within a microchannel consists of two compartments of cross-junction and T-junction. The high shear stress at the cross-junction creates a stagnation point that splits the first immiscible phase to four jet streams each of which are sprayed to micrometer droplets surrounded by the second phase. The resulted structure is then supported by the third phase at the T-junction to generate and transport MEs. The ME formation within microfluidics is numerically simulated and the effects of several key parameters on properties of MEs are investigated. The dimensionless modeling of ME formation enables to change only one parameter at the time and analyze the sensitivity of the system to each parameter. The results demonstrate the capability of highly controlled and high-throughput MEs formation in a one-step synthesis process. The consecutive MEs are monodisperse in size which open avenues for the generation of controlled MEs for different applications.
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Affiliation(s)
- Milad Azarmanesh
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Saleh Bawazeer
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Abdulmajeed A Mohamad
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada.
| | - Amir Sanati-Nezhad
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada. .,Center for Bioengineering Research and Education, Biomedical Engineering Program, University of Calgary, Calgary, Alberta, T2N 1N4, Canada.
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Shi M, Zhang H, Song T, Liu X, Gao Y, Zhou J, Li Y. Sustainable Dual Release of Antibiotic and Growth Factor from pH-Responsive Uniform Alginate Composite Microparticles to Enhance Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2019; 11:22730-22744. [PMID: 31141337 DOI: 10.1021/acsami.9b04750] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hydrogel-based wound dressings provided a moist microenvironment and local release of bioactive molecules. Single drug loading along with fast release rates and usually in hydrogel sheets limited their performance. Hence, uniform alginate/CaCO3 composite microparticles (∼430 μm) with tunable compositions for sustainable release of drug and pH-sensitivity were successfully fabricated using microfluidic technology. Due to the presence of CaCO3 and the strong interactions with alginate molecules, lyophilized composite microparticles reverted to hydrogel state after rehydration. Regardless of microparticle states (hydrogel or lyophilized) and pH values (6.4 or 7.4), in vitro release rates of model drug were inversely related with CaCO3 concentrations and much lower than that for pure alginate microparticles. The release rate at pH 6.4 (simulating wound microenvironment) was always slower than that at pH 7.4 for the same type of microparticles. Rifamycin and basic fibroblast growth factor (bFGF) were independently encapsulated into AD-5-R and AD-40-F to achieve a fast release of rifamycin and a slower, more sustained release of bFGF, respectively; CD-F-R was a mixture of AD-5-R and AD-40-F at weight ratio 1/1. For AD-5-R and CD-F-R, inhibition zones of S. aureus were observed until day 5, showing a sustained antibacterial property. On the basis of in vitro wound healing model of NIH-3T3 cell micropattern on glass coverslips with a hole array, it was found that AD-40-F and CD-F-R significantly promoted cell proliferation and migration rates. In a full-thickness skin wound model of rats, CD-F-R microparticles significantly accelerated wound healing with higher granulation tissue thickness and better bioactivity to stimulate angiogenesis than the control group. Furthermore, CD-F-R microparticles demonstrated a good biocompatibility and biodegradability in vivo. Taken together, CD-F-R composite microparticles may ideally meet the requirements for different stages during wound healing and demonstrated a good potential to be used as dressing materials.
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Affiliation(s)
- Ming Shi
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
| | - Hao Zhang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
| | - Ting Song
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
| | - Xiaofang Liu
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
| | - Yunfen Gao
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
| | - Jianhua Zhou
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital , Harvard Medical School , Cambridge , Massachusetts 02139 , United States
| | - Yan Li
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
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Xia M, Kang SM, Lee GW, Huh YS, Park BJ. The recyclability of alginate hydrogel particles used as a palladium catalyst support. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.01.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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23
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Alkayyali T, Cameron T, Haltli B, Kerr R, Ahmadi A. Microfluidic and cross-linking methods for encapsulation of living cells and bacteria - A review. Anal Chim Acta 2019; 1053:1-21. [DOI: 10.1016/j.aca.2018.12.056] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 12/24/2018] [Accepted: 12/26/2018] [Indexed: 12/14/2022]
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24
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Dong Y, Yi C, Yang S, Wang J, Chen P, Liu X, Du W, Wang S, Liu BF. A substrate-free graphene oxide-based micromotor for rapid adsorption of antibiotics. NANOSCALE 2019; 11:4562-4570. [PMID: 30806402 DOI: 10.1039/c8nr09229j] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Self-propelled micro/nanomotors play a crucial role in the fields of biomedicine, energy and the environment but are limited by low throughput and a tedious fabrication approach. Here, we propose a simple microfluidics-based scheme for fabricating substrate-free graphene oxide (GO)-based micromotors of different shapes and sizes with high throughput. The micromotors are designed to possess a 'Janus'-like porous structure, and half of each micromotor is modified with hierarchical Pt nanoflowers, which can promote the wetting of Pt with an H2O2 solution and result in a high speed of movement. To investigate the applicability of the micromotors, they were employed to rapidly remove an antibiotic, namely, tetracycline, from a solution. It was found that the rapid movement of the micromotors increased the mass transfer of tetracycline and the frequency of collisions between tetracycline molecules and the micromotors, which led to a high removal efficiency. The direction of movement of the micromotors can be conveniently controlled by an external magnetic field. Furthermore, the removal efficiency and removal time as functions of the number of micromotors, the adsorption kinetics and adsorption isotherm, and the removal amount as a function of the pH were investigated. This proved that the micromotors that were constructed exhibit high adsorption capabilities for tetracycline and implied that they hold great promise for the removal of antibiotics with similar structures or other pollutants, including organic compounds, heavy metals and oil droplets.
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Affiliation(s)
- Yue Dong
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
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25
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Chaurasia AS, Sajjadi S. Transformable bubble-filled alginate microfibers via vertical microfluidics. LAB ON A CHIP 2019; 19:851-863. [PMID: 30706933 DOI: 10.1039/c8lc01081a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A novel buoyancy-assisted vertical microfluidic setup has been developed to fabricate a new class of transformable bubble-filled hydrogel microfibers. A co-axial flow of an aqueous sodium-alginate solution enveloping an air phase was injected into a quiescent aqueous CaCl2 solution, through a vertically-oriented co-axial glass-capillary setup. This induced instantaneous gelation and produced bubble-filled calcium-alginate fibers. The surface-morphology of the resulting fibers was controlled from smooth to wavy by slowing down the gelation kinetics. The advantage of the buoyancy force acting on the fibers by the trapped air bubbles was taken not only to shape the fibers, but to transform them into several other novel hydrogel structures, such as water-filled segmented fibers, beaded microfibers, and threaded capsules. The ultimate transformability was demonstrated by the fibers being allowed to elongate and then undergo controlled destruction to produce uniform anisotropic micro-particles with a wide range of sizes and shapes from frustums to barrel and cylindrical types.
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26
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Martins CR, Custódio CA, Mano JF. Multifunctional laminarin microparticles for cell adhesion and expansion. Carbohydr Polym 2018; 202:91-98. [PMID: 30287047 PMCID: PMC6443035 DOI: 10.1016/j.carbpol.2018.08.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/07/2018] [Accepted: 08/08/2018] [Indexed: 02/07/2023]
Abstract
Microfabrication technologies have been widely explored to produce microgels that can be assembled in functional constructs for tissue engineering and regenerative medicine applications. Here, we propose microfluidics coupled to a source of UV light to produce multifunctional methacrylated laminarin microparticles with narrow distribution of sizes using photopolymerization. The multifunctional microparticles were loaded with platelet lysates and further conjugated with an adhesive peptide. The adhesive peptides dictated cell adhesiveness to the laminarin microparticles, the incorporation of platelet lysates have resulted in improved cell expansion compared to clear microparticles. Overall, our findings demonstrate that multifunctional methacrylated laminarin microparticles provide an effective support for cell attachment and expansion. Moreover, expanded cells provide the link for microparticles aggregation resulting in robust 3D structures. This suggest the potential for using the methacrylated laminarin microplatforms capable to be assembled by the action of cells to rapidly produce large tissue engineered constructs.
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Affiliation(s)
- C R Martins
- Department of Chemistry, CICECO, Aveiro Institute of Materials, University of Aveiro Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - C A Custódio
- Department of Chemistry, CICECO, Aveiro Institute of Materials, University of Aveiro Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - J F Mano
- Department of Chemistry, CICECO, Aveiro Institute of Materials, University of Aveiro Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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27
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Mi S, Du Z, Xu Y, Sun W. The crossing and integration between microfluidic technology and 3D printing for organ-on-chips. J Mater Chem B 2018; 6:6191-6206. [PMID: 32254609 DOI: 10.1039/c8tb01661e] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Organ-on-chips were designed to simulate the real tissue or organ microenvironment by precise control of the cells, the extracellular matrix and other micro-environmental factors to clarify physiological or pathological mechanisms. The organ chip is mainly based on the poly(dimethylsiloxane) (PDMS) microfluidic devices, whereas the conventional soft lithography requires a cumbersome manufacturing process, and the complex on-chip tissue or organ chip also depends on the complicated loading process of the cells and biomaterials. 3D printing can efficiently design and automatically print micrometre-scale devices, while bio-printing can also precisely manipulate cells and biomaterials to create complex organ or tissue structures. In recent years, the popularization of 3D printing has provided more possibilities for its application to 3D printed organ-on-chips. The combination of 3D printing and microfluidic technology in organ-on-chips provides a more efficient choice for building complex flow channels or chambers, as well as the ability to create biological structures with a 3D cell distribution, heterogeneity and tissue-specific function. The fabrication of complex, heterogeneous 3D printable biomaterials based on microfluidics also provides new assistance for building complex organ-on-chips. Here, we discuss the recent advances and potential applications of 3D printing in combination with microfluidics to organ-on-chips and provide outlooks on the integration of the two technologies in building efficient, automated, modularly integrated, and customizable organ-on-chips.
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Affiliation(s)
- Shengli Mi
- Biomanufacturing Engineering Laboratory, Advanced Manufacturing Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen, P. R. China.
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28
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Silva KCG, Sato ACK. Biopolymer gels containing fructooligosaccharides. Food Res Int 2017; 101:88-95. [DOI: 10.1016/j.foodres.2017.08.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/16/2017] [Accepted: 08/18/2017] [Indexed: 12/17/2022]
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29
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Zhang Y, Schattling PS, Itel F, Städler B. Planar and Cell Aggregate-Like Assemblies Consisting of Microreactors and HepG2 Cells. ACS OMEGA 2017; 2:7085-7095. [PMID: 30023539 PMCID: PMC6045345 DOI: 10.1021/acsomega.7b01234] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 10/05/2017] [Indexed: 05/04/2023]
Abstract
The assembly of microreactors has made considerable progress toward the fabrication of artificial cells. However, their characterization remains largely limited to buffer solution-based assays in the absence of their natural role model-the biological cells. Herein, the combination of microreactors with HepG2 cells either in planar cell cultures or in the form of cell aggregates is reported. Alginate (Alg)-based microreactors loaded with catalase are assembled by droplet microfluidics, and their activity is confirmed. The acceptance of polymer-coated ∼40 μm Alg particles by proliferating HepG2 cells is depending on the terminating polymer layer. When these functional microreactors are cocultured with HepG2 cells, they can be employed for detoxification, that is, hydrogen peroxide removal, and by doing so, they assist the cells to survive. This report is among the first successful combination of microreactors with biological cells, that is, HepG2 cells, contributing to the fundamental understanding of integrating synthetic and biological partners toward the maturation of this semisynthetic concept for biomedical applications.
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Affiliation(s)
- Yan Zhang
- Interdisciplinary Nanoscience (iNANO), Aarhus University, Gustav Wieds Vej 14, Aarhus 8000, Denmark
| | - Philipp S. Schattling
- Interdisciplinary Nanoscience (iNANO), Aarhus University, Gustav Wieds Vej 14, Aarhus 8000, Denmark
| | - Fabian Itel
- Interdisciplinary Nanoscience (iNANO), Aarhus University, Gustav Wieds Vej 14, Aarhus 8000, Denmark
| | - Brigitte Städler
- Interdisciplinary Nanoscience (iNANO), Aarhus University, Gustav Wieds Vej 14, Aarhus 8000, Denmark
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30
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Boggione DM, Batalha LS, Gontijo MT, Lopez ME, Teixeira AV, Santos IJ, Mendonça RC. Evaluation of microencapsulation of the UFV-AREG1 bacteriophage in alginate-Ca microcapsules using microfluidic devices. Colloids Surf B Biointerfaces 2017; 158:182-189. [DOI: 10.1016/j.colsurfb.2017.06.045] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/21/2017] [Accepted: 06/27/2017] [Indexed: 02/07/2023]
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31
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Morimoto Y, Onuki M, Takeuchi S. Mass Production of Cell-Laden Calcium Alginate Particles with Centrifugal Force. Adv Healthc Mater 2017; 6. [PMID: 28426183 DOI: 10.1002/adhm.201601375] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/26/2017] [Indexed: 12/21/2022]
Abstract
This paper describes a centrifuge-based device for oil-free and mass production of calcium-alginate (Ca-alginate) particles. The device is composed of four components: a tank with a glass capillary for forming sodium alginate droplets, a collecting bath with calcium chloride (CaCl2 ) solution, a waste liquid box, and a bypass channel bridged between the collecting bath and the waste liquid box. When the device is centrifuged, extra CaCl2 solution in the collecting bath is delivered to the waste liquid box to maintain the appropriate liquid level of CaCl2 solution for the production of monodisperse Ca-alginate particles. The proposed device enables oil-free production of over 45 000 uniformly sized Ca-alginate particles in a single 240 s process, whereas using the conventional method with only a glass capillary, ≈1000 particles are formed within the same processing time. Because of the high biocompatibility of the oil-free process, the device is applicable to cell encapsulation in Ca-alginate particles with high cell viability, as well as the formation of a macroscopic 3D cellular structure using Ca-alginate particles covered with cells as assembly modules. These results suggest that the device can be a useful tool for preparing experimental platforms in biomedical and tissue engineering fields.
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Affiliation(s)
- Yuya Morimoto
- Center for International Research on Integrative Biomedical Systems (CIBiS); Institute of Industrial Science (IIS); The University of Tokyo; 4-6-1 Komaba Meguro-ku Tokyo 153-8505 Japan
| | - Maiko Onuki
- Center for International Research on Integrative Biomedical Systems (CIBiS); Institute of Industrial Science (IIS); The University of Tokyo; 4-6-1 Komaba Meguro-ku Tokyo 153-8505 Japan
| | - Shoji Takeuchi
- Center for International Research on Integrative Biomedical Systems (CIBiS); Institute of Industrial Science (IIS); The University of Tokyo; 4-6-1 Komaba Meguro-ku Tokyo 153-8505 Japan
- Takeuchi Biohybrid innovation Project; ERATO; Japan Science and Technology (JST); Komaba Open Laboratory (KOL) Room M202; 4-6-1 Komaba Meguro-ku Tokyo 153-8904 Japan
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32
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Agüero L, Zaldivar-Silva D, Peña L, Dias ML. Alginate microparticles as oral colon drug delivery device: A review. Carbohydr Polym 2017; 168:32-43. [DOI: 10.1016/j.carbpol.2017.03.033] [Citation(s) in RCA: 230] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 02/18/2017] [Accepted: 03/09/2017] [Indexed: 01/13/2023]
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Hussain M, Xie J, Hou Z, Shezad K, Xu J, Wang K, Gao Y, Shen L, Zhu J. Regulation of Drug Release by Tuning Surface Textures of Biodegradable Polymer Microparticles. ACS APPLIED MATERIALS & INTERFACES 2017; 9:14391-14400. [PMID: 28367618 DOI: 10.1021/acsami.7b02002] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Generally, size, uniformity, shape, and surface chemistry of biodegradable polymer particles will significantly affect the drug-release behavior in vitro and in vivo. In this study, uniform poly(d,l-lactic-co-glycolide) (PLGA) and PLGA-b-poly(ethylene glycol) (PLGA-b-PEG) microparticles with tunable surface textures were generated by combining the interfacial instabilities of emulsion droplet and polymer-blending strategy. Monodisperse emulsion droplets containing polymers were generated through the microfluidic flow-focusing technique. The removal of organic solvent from the droplets triggered the interfacial instabilities (spontaneous increase in interfacial area), leading to the formation of uniform polymer particles with textured surfaces. With the introduction of homopolymer PLGA to PLGA-b-PEG, the hydrophobicity of the polymer system was tailored, and a qualitatively different interfacial behavior of the emulsion droplets during solvent removal was observed. Uniform polymer particles with tunable surface roughness were thus generated by changing the ratio of PLGA-b-PEG in the polymer blends. More interestingly, surface textures of the particles determined the drug-loading efficiency and release kinetics of the encapsulated hydrophobic paclitaxel, which followed a diffusion-directed drug-release pattern. The polymer particles with different surface textures demonstrated good cell viability and biocompatibility, indicating the promising role of the particles in the fields of drug or gene delivery for tumor therapy, vaccines, biodiagnostics, and bioimaging.
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Affiliation(s)
- Mubashir Hussain
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
| | - Jun Xie
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
| | - Zaiyan Hou
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
| | - Khurram Shezad
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
| | - Jiangping Xu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
| | - Ke Wang
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
| | - Yujie Gao
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
| | - Lei Shen
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
| | - Jintao Zhu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
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Microgels from microfluidic templating and photoinduced crosslinking of cinnamylidene acetic acid modified precursors. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2016.12.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Martino C, Statzer C, Vigolo D, deMello AJ. Controllable generation and encapsulation of alginate fibers using droplet-based microfluidics. LAB ON A CHIP 2016; 16:59-64. [PMID: 26556398 DOI: 10.1039/c5lc01150g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Herein we demonstrate the segmentation of alginate solution streams to generate alginate fibers of precisely controllable lengths between 200 and 1000 μm. Moreover, we demonstrate the subsequent encapsulation of the formed fibers within pL-volume microdroplets, produced within the same microfluidic device, in a direct manner. Finally, we show immediate and complete on-chip gelation of alginate fibers in a rapid and reproducible fashion.
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Affiliation(s)
- Chiara Martino
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir Prelog Weg 1, Zürich 8093, Switzerland.
| | - Cyril Statzer
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir Prelog Weg 1, Zürich 8093, Switzerland.
| | - Daniele Vigolo
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir Prelog Weg 1, Zürich 8093, Switzerland.
| | - Andrew J deMello
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir Prelog Weg 1, Zürich 8093, Switzerland.
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36
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Pittermannová A, Ruberová Z, Zadražil A, Bremond N, Bibette J, Štěpánek F. Microfluidic fabrication of composite hydrogel microparticles in the size range of blood cells. RSC Adv 2016. [DOI: 10.1039/c6ra23003b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The fabrication of alginate hydrogel microparticles with embedded liposomes and magnetic nanoparticles for radiofrequency controlled release of encapsulated chemical cargo was demonstrated.
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Affiliation(s)
- A. Pittermannová
- Department of Chemical Engineering
- University of Chemistry and Technology
- 166 28 Prague 6
- Czech Republic
- Laboratoire Colloïdes et Matériaux Divisés
| | - Z. Ruberová
- Department of Chemical Engineering
- University of Chemistry and Technology
- 166 28 Prague 6
- Czech Republic
| | - A. Zadražil
- Department of Chemical Engineering
- University of Chemistry and Technology
- 166 28 Prague 6
- Czech Republic
| | - N. Bremond
- Laboratoire Colloïdes et Matériaux Divisés
- ESPCI ParisTech
- 75005 Paris
- France
| | - J. Bibette
- Laboratoire Colloïdes et Matériaux Divisés
- ESPCI ParisTech
- 75005 Paris
- France
| | - F. Štěpánek
- Department of Chemical Engineering
- University of Chemistry and Technology
- 166 28 Prague 6
- Czech Republic
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Kim C, Park KS, Kang SM, Kim J, Song Y, Lee CS. Comparison of Pectin Hydrogel Collection Methods in Microfluidic Device. KOREAN CHEMICAL ENGINEERING RESEARCH 2015. [DOI: 10.9713/kcer.2015.53.6.740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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38
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Hu Y, Wang S, Abbaspourrad A, Ardekani AM. Fabrication of shape controllable Janus alginate/pNIPAAm microgels via microfluidics technique and off-chip ionic cross-linking. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:1885-1891. [PMID: 25584686 DOI: 10.1021/la504422j] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel method to fabricate shape controllable alginate/pNIPAAm complex microgels is reported. Monodisperse alginate/pNIPAAm droplets are created via microfluidics and cross-linked in different concentrations of hot glycerol/barium acetate water solutions. By changing the initial droplet size and glycerol concentration of the collecting solution, the resultant microgel shape and surface details can be systematically tuned. High-speed imaging is used to visualize and explain the microgel formation process.
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Affiliation(s)
- Yuandu Hu
- Department of Aerospace and Mechanical Engineering, University of Notre Dame , Notre Dame, Indiana 46556, United States
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