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Zheng F, Tian R, Lu H, Liang X, Shafiq M, Uchida S, Chen H, Ma M. Droplet Microfluidics Powered Hydrogel Microparticles for Stem Cell-Mediated Biomedical Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401400. [PMID: 38881184 DOI: 10.1002/smll.202401400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/21/2024] [Indexed: 06/18/2024]
Abstract
Stem cell-related therapeutic technologies have garnered significant attention of the research community for their multi-faceted applications. To promote the therapeutic effects of stem cells, the strategies for cell microencapsulation in hydrogel microparticles have been widely explored, as the hydrogel microparticles have the potential to facilitate oxygen diffusion and nutrient transport alongside their ability to promote crucial cell-cell and cell-matrix interactions. Despite their significant promise, there is an acute shortage of automated, standardized, and reproducible platforms to further stem cell-related research. Microfluidics offers an intriguing platform to produce stem cell-laden hydrogel microparticles (SCHMs) owing to its ability to manipulate the fluids at the micrometer scale as well as precisely control the structure and composition of microparticles. In this review, the typical biomaterials and crosslinking methods for microfluidic encapsulation of stem cells as well as the progress in droplet-based microfluidics for the fabrication of SCHMs are outlined. Moreover, the important biomedical applications of SCHMs are highlighted, including regenerative medicine, tissue engineering, scale-up production of stem cells, and microenvironmental simulation for fundamental cell studies. Overall, microfluidics holds tremendous potential for enabling the production of diverse hydrogel microparticles and is worthy for various stem cell-related biomedical applications.
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Affiliation(s)
- Fangqiao Zheng
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, P. R. China
| | - Ruizhi Tian
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hongxu Lu
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiao Liang
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, P. R. China
| | - Muhammad Shafiq
- Innovation Center of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, Kawasaki-ku, Kawasaki, Kanagawa, 210-0821, Japan
| | - Satoshi Uchida
- Innovation Center of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, Kawasaki-ku, Kawasaki, Kanagawa, 210-0821, Japan
- Department of Advanced Nanomedical Engineering, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8510, Japan
| | - Hangrong Chen
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, P. R. China
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ming Ma
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, P. R. China
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Fan Z, Chen Y, Yang Z, Niu Y, Liang K, Zhang Y, Zeng J, Feng Y, Zhang Y, Liu Y, Lv C, Zhao P, Zhou L, Kong W, Li W, Chen H, Han D, Du Y. Superimposed Electric Field Enhanced Electrospray for High-Throughput and Consistent Cell Encapsulation. Adv Healthc Mater 2024:e2400780. [PMID: 38850154 DOI: 10.1002/adhm.202400780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/27/2024] [Indexed: 06/10/2024]
Abstract
Cell encapsulation technology, crucial for advanced biomedical applications, faces challenges in existing microfluidic and electrospray methods. Microfluidic techniques, while precise, can damage vulnerable cells, and conventional electrospray methods often encounter instability and capsule breakage during high-throughput encapsulation. Inspired by the transformation of the working state from unstable dripping to stable jetting triggered by local electric potential, this study introduces a superimposed electric field (SEF)-enhanced electrospray method for cell encapsulation, with improved stability and biocompatibility. Utilizing stiffness theory, the stability of the electrospray, whose stiffness is five times stronger under conical confinement, is quantitatively analyzed. The SEF technique enables rapid, continuous production of ≈300 core-shell capsules per second in an aqueous environment, significantly improving cell encapsulation efficiency. This method demonstrates remarkable potential as exemplified in two key applications: (1) a 92-fold increase in human-derived induced pluripotent stem cells (iPSCs) expansion over 10 d, outperforming traditional 2D cultures in both growth rate and pluripotency maintenance, and (2) the development of liver capsules for steatosis modeling, exhibiting normal function and biomimetic lipid accumulation. The SEF-enhanced electrospray method presents a significant advancement in cell encapsulation technology. It offers a more efficient, stable, and biocompatible approach for clinical transplantation, drug screening, and cell therapy.
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Affiliation(s)
- Zejun Fan
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
- Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Yihan Chen
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Zhen Yang
- Arthritis Clinical and Research Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, China
- Arthritis Institute, Peking University, Beijing, 100044, China
| | - Yudi Niu
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Kaini Liang
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Yan Zhang
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Jianan Zeng
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Yiting Feng
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Yuying Zhang
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Ye Liu
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
- Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, 100081, China
| | - Cheng Lv
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Peng Zhao
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Lv Zhou
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Wenyu Kong
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Wenjing Li
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Haoke Chen
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Dongbo Han
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Yanan Du
- School of Biomedical Engineering, Tsinghua Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
- National Key Laboratory of Kidney Diseases, Beijing, 100000, China
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Liu Z, Zheng N, Liu J, Jia B, Wang X, Yao P, Zhang Y, Xia F, Guo X. Enhanced antifouling and antibacterial performances of novel UV-curable polysiloxane/microcapsules/Ag composite coatings for marine applications. ROYAL SOCIETY OPEN SCIENCE 2024; 11:240090. [PMID: 39100143 PMCID: PMC11295885 DOI: 10.1098/rsos.240090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/27/2024] [Accepted: 04/10/2024] [Indexed: 08/06/2024]
Abstract
Marine biological fouling is a widespread phenomenon encountered by various oceanic ships and naval vessels, resulting in enormous economic losses. Herein, novel 4,5-dichloro-2-octyl-isothiazolone@sodium alginate/chitosan microcapsules (DCOIT@ALG/CS) were prepared through composite gel method using DCOIT as core materials, ALG and CS as shells, and CaCl2 as the cross-linking agent. The formed microcapsules (MCs) with Ag nanoparticles (AgNPs) were then filled in UV-curable polysiloxane (UV-PDMS), followed by UV irradiation to yield UV-PDMS/microcapsules/AgNPs (UV-PDMS/MCs/Ag) composite coatings. The constructed micro-nano dual-scale surface using the MCs and AgNPs improved the antifouling and antibacterial properties of UV-PDMS/MCs/Ag coatings. The as-obtained UV-PDMS/MCs/Ag coatings exhibited a static contact angle of about 160°, shear strength of 2.24 MPa, tensile strength of 3.32 MPa and elongation at break of 212%. The synergistic bacteriostatic effects of DCOIT and AgNPs in UV-PDMS/MCs/Ag coatings resulted in a bactericidal rate of 200 μg ml-1 towards Escherichia coli and Staphylococcus aureus with saturation at 100% within 10 min. In sum, the proposed composite coatings look promising for future marine transportation, pipeline networks and undersea facilities.
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Affiliation(s)
- Ze Liu
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Nan Zheng
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Jie Liu
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Bo Jia
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Xiaojun Wang
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Pan Yao
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Yayu Zhang
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Fu Xia
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Xinyu Guo
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
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Vaziri AS, Alizadeh M, Vasheghani-Farahani E, Karakaya E, Detsch R, Boccaccini AR. Polyethylenimine Inclusion to Develop Aqueous Alginate-Based Core-Shell Capsules for Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2024; 16:25652-25664. [PMID: 38739871 DOI: 10.1021/acsami.4c01186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Aqueous core-shell structures can serve as an efficient approach that allows cells to generate 3D spheroids with in vivo-like cell-to-cell contacts. Here, a novel strategy for fabricating liquid-core-shell capsules is proposed by inverse gelation of alginate (ALG) and layer-by-layer (LbL) coating. We hypothesized that the unique properties of polyethylenimine (PEI) could be utilized to overcome the low structural stability and the limited cell recognition motifs of ALG. In the next step, alginate dialdehyde (ADA) enabled the Schiff-base reaction with free amine groups of PEI to reduce its possible toxic effects. Scanning electron microscopy and light microscopy images proved the formation of spherical hollow capsules with outer diameters of 3.0 ± 0.1 mm for ALG, 3.2 ± 0.1 mm for ALG/PEI, and 4.0 ± 0.2 mm for ALG/PEI/ADA capsules. The effective modulus increased by 3-fold and 5-fold when comparing ALG/PEI/ADA and ALG/PEI to ALG capsules, respectively. Moreover, PEI-coated capsules showed potential antibacterial properties against both Staphylococcus aureus and Escherichia coli, with an apparent inhibition zone. The cell viability results showed that all capsules were cytocompatible (above 75.5%). Cells could proliferate and form spheroids when encapsulated within the ALG/PEI/ADA capsules. Monitoring the spheroid thickness over 5 days of incubation indicated an increasing trend from 39.50 μm after 1 day to 66.86 μm after 5 days. The proposed encapsulation protocol represents a new in vitro platform for developing 3D cell cultivation and can be adapted to fulfill the requirements of various biomedical applications.
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Affiliation(s)
- Asma Sadat Vaziri
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115-111, Iran
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstrasse 6, Erlangen 91058, Germany
| | - Maryam Alizadeh
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstrasse 6, Erlangen 91058, Germany
| | - Ebrahim Vasheghani-Farahani
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115-111, Iran
| | - Emine Karakaya
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstrasse 6, Erlangen 91058, Germany
| | - Rainer Detsch
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstrasse 6, Erlangen 91058, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstrasse 6, Erlangen 91058, Germany
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Wasyłeczko M, Wojciechowski C, Chwojnowski A. Polyethersulfone Polymer for Biomedical Applications and Biotechnology. Int J Mol Sci 2024; 25:4233. [PMID: 38673817 PMCID: PMC11049998 DOI: 10.3390/ijms25084233] [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: 03/07/2024] [Revised: 04/03/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Polymers stand out as promising materials extensively employed in biomedicine and biotechnology. Their versatile applications owe much to the field of tissue engineering, which seamlessly integrates materials engineering with medical science. In medicine, biomaterials serve as prototypes for organ development and as implants or scaffolds to facilitate body regeneration. With the growing demand for innovative solutions, synthetic and hybrid polymer materials, such as polyethersulfone, are gaining traction. This article offers a concise characterization of polyethersulfone followed by an exploration of its diverse applications in medical and biotechnological realms. It concludes by summarizing the significant roles of polyethersulfone in advancing both medicine and biotechnology, as outlined in the accompanying table.
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Affiliation(s)
- Monika Wasyłeczko
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Ksiecia Trojdena 4, 02-109 Warsaw, Poland; (C.W.); (A.C.)
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6
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Baudis S, Roch T, Balk M, Wischke C, Lendlein A, Behl M. Multivariate Analysis of Cellular Uptake Characteristics for a (Co)polymer Particle Library. ACS Biomater Sci Eng 2024; 10:1481-1493. [PMID: 38374768 PMCID: PMC10934412 DOI: 10.1021/acsbiomaterials.3c01803] [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: 12/01/2023] [Revised: 02/02/2024] [Accepted: 02/02/2024] [Indexed: 02/21/2024]
Abstract
Controlling cellular responses to nanoparticles so far is predominantly empirical, typically requiring multiple rounds of optimization of particulate carriers. In this study, a systematic model-assisted approach should lead to the identification of key parameters that account for particle properties and their cellular recognition. A copolymer particle library was synthesized by a combinatorial approach in soap free emulsion copolymerization of styrene and methyl methacrylate, leading to a broad compositional as well as constitutional spectrum. The proposed structure-property relationships could be elucidated by multivariate analysis of the obtained experimental data, including physicochemical characteristics such as molar composition, molecular weight, particle diameter, and particle charge as well as the cellular uptake pattern of nanoparticles. It was found that the main contributors for particle size were the polymers' molecular weight and the zeta potential, while particle uptake is mainly directed by the particles' composition. This knowledge and the reported model-assisted procedure to identify relevant parameters affecting particle engulfment of particulate carriers by nonphagocytic and phagocytic cells can be of high relevance for the rational design of pharmaceutical nanocarriers and assessment of biodistribution and nanotoxicity, respectively.
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Affiliation(s)
- Stefan Baudis
- Institute
of Active Polymers, Helmholtz-Zentrum Hereon, Kantstraße 55, 14513 Teltow, Germany
| | - Toralf Roch
- Institute
of Active Polymers, Helmholtz-Zentrum Hereon, Kantstraße 55, 14513 Teltow, Germany
| | - Maria Balk
- Institute
of Active Polymers, Helmholtz-Zentrum Hereon, Kantstraße 55, 14513 Teltow, Germany
| | - Christian Wischke
- Institute
of Active Polymers, Helmholtz-Zentrum Hereon, Kantstraße 55, 14513 Teltow, Germany
| | - Andreas Lendlein
- Institute
of Active Polymers, Helmholtz-Zentrum Hereon, Kantstraße 55, 14513 Teltow, Germany
- Institute
of Biochemistry and Biology, University
of Potsdam, Karl-Liebknecht-Str.
24-25, 14476 Potsdam-Golm, Germany
| | - Marc Behl
- Institute
of Active Polymers, Helmholtz-Zentrum Hereon, Kantstraße 55, 14513 Teltow, Germany
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Pinho AR, Gomes MC, Costa DCS, Mano JF. Bioactive Self-Regulated Liquified Microcompartments to Bioengineer Bone-Like Microtissues. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305029. [PMID: 37847901 DOI: 10.1002/smll.202305029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/25/2023] [Indexed: 10/19/2023]
Abstract
Designing a microenvironment that drives autonomous stromal cell differentiation toward osteogenesis while recapitulating the complexity of bone tissue remains challenging. In the current study, bone-like microtissues are created using electrohydrodynamic atomization to form two distinct liquefied microcapsules (mCAPs): i) hydroxypyridinone (HOPO)-modified gelatin (GH mCAPs, 7.5% w/v), and ii) HOPO-modified gelatin and dopamine-modified gelatin (GH+GD mCAPs, 7.5%+1.5% w/v). The ability of HOPO to coordinate with iron ions at physiological pH allows the formation of a semipermeable micro-hydrogel shell. In turn, the dopamine affinity for calcium ions sets a bioactive milieu for bone-like microtissues. After 21 days post encapsulation, GH and GH+GD mCAPs potentiate autonomous osteogenic differentiation of mesenchymal stem cells accompanied by collagen type-I gene upregulation, increased alkaline phosphatase (ALP) expression, and formation of mineralized extracellular matrix. However, the GH+GD mCAPs show higher levels of osteogenic markers starting on day 14, translating into a more advanced and organized mineralized matrix. The GH+GD system also shows upregulation of the receptor activator of nuclear factor kappa-B ligand (RANK-L) gene, enabling the autonomous osteoclastic differentiation of monocytes. These catechol-based mCAPs offer a promising approach to designing multifunctional and autonomous bone-like microtissues to study in vitro bone-related processes at the cell-tissue interface, angiogenesis, and osteoclastogenesis.
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Affiliation(s)
- Ana R Pinho
- CICECO, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
| | - Maria C Gomes
- CICECO, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
| | - Dora C S Costa
- CICECO, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
| | - João F Mano
- CICECO, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
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Li X, Yang K, Yuan Z, Liu S, Du J, Li C, Meng S. Recent Advances on the Abrasion Resistance Enhancements and Applications of Superhydrophobic Materials. CHEM REC 2023; 23:e202200298. [PMID: 36779511 DOI: 10.1002/tcr.202200298] [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: 12/21/2022] [Revised: 01/24/2023] [Indexed: 02/14/2023]
Abstract
Researches on superhydrophobicity have been overwhelming and have shown great advantages in various fields. However, the abrasion resistance of superhydrophobic structures was usually poor, and they were easily damaged by external force or harsh environment, which greatly limited the applications of superhydrophobic surfaces. Much attention has been paid to improving the abrasion resistance of superhydrophobic materials by researchers. In this review, aimed at the advances on improving the abrasion resistance of superhydrophobic surfaces, it was summarized and compared three enhancement strategies including the reasonably design of micro-nano structures, the adoption of adhesives, and the preparation of self-healing surface. Finally, the applications of typical superhydrophobic materials with abrasion resistance were reviewed in various fields. In order to broaden the application fields of superhydrophobic materials, the abarasion resistance should be further improved. Therefore, we proposed the ideas for the future development of superhydrophobic materials with higher abrasion resistance. We hope that this review will provide a new approach to the preparation and development of stable superhydrophobic surfaces with higher abrasion resistance.
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Affiliation(s)
- Xinyi Li
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, 412007, China
| | - Kangli Yang
- Department of Teaching, Zhuzhou Central Hospital, Zhuzhou, 412000, China
| | - Zhiqing Yuan
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, 412007, China
| | - Shujuan Liu
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, 412007, China
| | - Juan Du
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, 412007, China
| | - Cancheng Li
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, 412007, China
| | - Shoutong Meng
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, 412007, China
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Li J, Parakhonskiy BV, Skirtach AG. A decade of developing applications exploiting the properties of polyelectrolyte multilayer capsules. Chem Commun (Camb) 2023; 59:807-835. [PMID: 36472384 DOI: 10.1039/d2cc04806j] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Transferring the layer-by-layer (LbL) coating approach from planar surfaces to spherical templates and subsequently dissolving these templates leads to the fabrication of polyelectrolyte multilayer capsules. The versatility of the coatings of capsules and their flexibility upon bringing in virtually any material into the coatings has quickly drawn substantial attention. Here, we provide an overview of the main developments in this field, highlighting the trends in the last decade. In the beginning, various methods of encapsulation and release are discussed followed by a broad range of applications, which were developed and explored. We also outline the current trends, where the range of applications is continuing to grow, including addition of whole new and different application areas.
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Affiliation(s)
- Jie Li
- Nano-Biotechnology Laboratory, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium.
| | - Bogdan V Parakhonskiy
- Nano-Biotechnology Laboratory, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium.
| | - Andre G Skirtach
- Nano-Biotechnology Laboratory, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium.
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10
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Rojek K, Ćwiklińska M, Kuczak J, Guzowski J. Microfluidic Formulation of Topological Hydrogels for Microtissue Engineering. Chem Rev 2022; 122:16839-16909. [PMID: 36108106 PMCID: PMC9706502 DOI: 10.1021/acs.chemrev.1c00798] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Microfluidics has recently emerged as a powerful tool in generation of submillimeter-sized cell aggregates capable of performing tissue-specific functions, so-called microtissues, for applications in drug testing, regenerative medicine, and cell therapies. In this work, we review the most recent advances in the field, with particular focus on the formulation of cell-encapsulating microgels of small "dimensionalities": "0D" (particles), "1D" (fibers), "2D" (sheets), etc., and with nontrivial internal topologies, typically consisting of multiple compartments loaded with different types of cells and/or biopolymers. Such structures, which we refer to as topological hydrogels or topological microgels (examples including core-shell or Janus microbeads and microfibers, hollow or porous microstructures, or granular hydrogels) can be precisely tailored with high reproducibility and throughput by using microfluidics and used to provide controlled "initial conditions" for cell proliferation and maturation into functional tissue-like microstructures. Microfluidic methods of formulation of topological biomaterials have enabled significant progress in engineering of miniature tissues and organs, such as pancreas, liver, muscle, bone, heart, neural tissue, or vasculature, as well as in fabrication of tailored microenvironments for stem-cell expansion and differentiation, or in cancer modeling, including generation of vascularized tumors for personalized drug testing. We review the available microfluidic fabrication methods by exploiting various cross-linking mechanisms and various routes toward compartmentalization and critically discuss the available tissue-specific applications. Finally, we list the remaining challenges such as simplification of the microfluidic workflow for its widespread use in biomedical research, bench-to-bedside transition including production upscaling, further in vivo validation, generation of more precise organ-like models, as well as incorporation of induced pluripotent stem cells as a step toward clinical applications.
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Haas S, Schmieg B, Wendling P, Guthausen G, Hubbuch J. Magnetic Resonance Imaging: Time-Dependent Wetting and Swelling Behavior of an Auxetic Hydrogel Based on Natural Polymers. Polymers (Basel) 2022; 14:polym14225023. [PMID: 36433150 PMCID: PMC9694485 DOI: 10.3390/polym14225023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/09/2022] [Accepted: 11/16/2022] [Indexed: 11/22/2022] Open
Abstract
A time-dependent understanding of swelling characteristics and external stimuli behavior is crucial for the development and understanding of functional hydrogels. Magnetic resonance imaging (MRI) offers the opportunity to study three-dimensional (3D) soft materials nondestructively. This technique is already widely used as an image-based medical diagnostic tool and is applied here to evaluate complex structures of a hydrogel-a double network of chemically crosslinked casein enhanced with alginate-fabricated by 3D printing. When hydrogel disks immersed in four different liquid systems were analyzed, the material exhibited distinct system-dependent behavior characterized by rheological and mechanical measurements. Further material functionalization was achieved by macroscopic structuring of the hydrogel as an auxetic material based on a re-entrant honeycomb structure. MRI offers the advantage of monitoring overall changes in the area of the analyzed specimen and internal structural changes simultaneously. To assess the behavior of this complex structure, a series of short MRI measurements, each lasting 1.7 min, captured liquid diffusion and thus structural swelling behavior. A clear dependence of external and internal structural changes as a function of liquid properties causing these changes was observed. In conclusion, this approach might pave the way for prospective applications to monitor liquid diffusion into (e.g., vascularization) and swelling behavior of functional hydrogels.
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Affiliation(s)
- Sandra Haas
- Institute of Process Engineering in Life Sciences, Section IV: Molecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany
| | - Barbara Schmieg
- Institute of Process Engineering in Life Sciences, Section IV: Molecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Paul Wendling
- Institute of Process Engineering in Life Sciences, Section IV: Molecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany
| | - Gisela Guthausen
- Institute of Mechanical Process Engineering and Mechanics, Karlsruhe Institute of Technology (KIT), Adenauerring 20b, 76131 Karlsruhe, Germany
- Engler Bunte Institute Water Chemistry and Technology, Karlsruhe Institute of Technology (KIT), Adenauerring 20b, 76131 Karlsruhe, Germany
| | - Jürgen Hubbuch
- Institute of Process Engineering in Life Sciences, Section IV: Molecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Correspondence:
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Han Y, Yan X, Tao Y. Effect of Transparent, Purple, and Yellow Shellac Microcapsules on Properties of the Coating on Paraberlinia bifoliolata Surface. Polymers (Basel) 2022; 14:polym14163304. [PMID: 36015561 PMCID: PMC9412888 DOI: 10.3390/polym14163304] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/03/2022] [Accepted: 08/10/2022] [Indexed: 01/27/2023] Open
Abstract
In order to explore the applicability of the waterborne coating with self-repairing microcapsules based on the surface of wood boards and specify the optimal range of microcapsule content in the coating, three different kinds of shellac microcapsules (transparent shellac, purple shellac, and yellow shellac) were embedded in a waterborne acrylic coating at 0, 1.5 wt.%, 3.0 wt.%, 4.5 wt.%, 6.0 wt.%, and 7.5 wt.%. The Beli wood (Paraberlinia bifoliolata) boards were then covered with self-repairing coatings to investigate the self-repairing coating’s physical and chemical properties, aging resistance, and scratch repair abilities. The findings demonstrated that the chromatic difference and gloss of surface coatings on Beli wood boards were significantly influenced by the content of microcapsules. The optical characteristics and cold liquid resistance performance of the coating on Beli wood were enhanced when the microcapsule content was 3.0 wt.%. Additionally, the mechanical qualities of the coating with 3.0 wt.% transparent shellac microcapsules on Beli wood surface were better, with an H hardness, grade 2 adhesion, and 8 kg·cm of impact strength. The studies on scratch repairing and aging resistance indicated that microcapsules helped to slow down the coating’s damage and retard aging. After a microcrack appeared, the waterborne coating with microcapsules on Beli wood’s surface had the capacity to repair itself. After aging, the coating with 3.0 wt.% transparent shellac microcapsule on Beli wood boards had a better performance on the comprehensive properties, with a 28.9% light loss rate and a 6 kg·cm impact resistance. It also had a 25.0% repairing rate in scratch width after being damaged for 5 d. This study advances the development of self-healing waterborne coatings on the wood board with shellac microcapsules by examining the effects of shellac in various colors and shellac microcapsule content in waterborne coatings.
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Affiliation(s)
- Yan Han
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaoxing Yan
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
- Correspondence:
| | - Yu Tao
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
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Badalan M, Ghigliotti G, Achard JL, Bottausci F, Balarac G. Physical Analysis of the Centrifugal Microencapsulation Process. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matei Badalan
- Université Grenoble Alpes, CEA, LETI, Technologies for Healthcare and biology division, Microfluidic Systems and Bioengineering Lab, 38000 Grenoble, France
- Université Grenoble Alpes, CNRS, Grenoble INP, LEGI, 38000 Grenoble, France
| | | | - Jean-Luc Achard
- Université Grenoble Alpes, CNRS, Grenoble INP, LEGI, 38000 Grenoble, France
| | - Frédéric Bottausci
- Université Grenoble Alpes, CEA, LETI, Technologies for Healthcare and biology division, Microfluidic Systems and Bioengineering Lab, 38000 Grenoble, France
| | - Guillaume Balarac
- Université Grenoble Alpes, CNRS, Grenoble INP, LEGI, 38000 Grenoble, France
- Institut Universitaire de France (IUF), 75000 Paris, France
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