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Bao F, Liang Z, Deng J, Lin Q, Li W, Peng Q, Fang Y. Toward intelligent food packaging of biosensor and film substrate for monitoring foodborne microorganisms: A review of recent advancements. Crit Rev Food Sci Nutr 2022; 64:3920-3931. [PMID: 36300845 DOI: 10.1080/10408398.2022.2137774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Microorganisms in food do harms to human. They can cause serious adverse reactions and sometimes even death. So it is an urgent matter to find an effective method to control them. The research of intelligent- biosensor packaging is in the ascendant in recent years, which is mainly promoted by reflecting on food safety and reducing resource waste. Intelligent biosensor-packaging is an instant and efficient intelligent packaging technology, which can directly and scientifically manifest the quality of food without complex operation. In this review, the purposes of providing relevant information on intelligent biosensor-packaging are reviewed, such as types of biosensors for monitoring foodborne microorganism, the suitable material for intelligent biosensor-packaging and design and fabrication of intelligent biosensor-packaging. The potential of intelligent biosensor-packaging in the detection of foodborne microorganisms is emphasized. The challenges and directions of the intelligent biosensor-packaging in the detection of foodborne pathogens are discussed. With the development of science and technology in the future, the intelligent biosensor-packaging should be commercialized in a real sense. And it is expected that commercial products can be manufactured in the future, which will provide a far-reaching approach in food safety and food prevention. HighlightsSeveral biosensors are suitable for the detection of food microorganisms.Plastic polymer is an excellent choice for the construction of intelligent biosensor packaging.Design and fabrication can lay the foundation for intelligent-biosensor packaging.Intelligent biosensor-packaging can realize fast and real-time detection of microorganisms in food.
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Affiliation(s)
- Feng Bao
- Hunan Province Key Laboratory of Edible forestry Resource Safety and Processing Utilization, National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, China
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, JiangShu, Nanjing, China
| | - Zhao Liang
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo City, P. R. China
| | - Jing Deng
- Hunan Province Key Laboratory of Edible forestry Resource Safety and Processing Utilization, National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, China
| | - Qinlu Lin
- Hunan Province Key Laboratory of Edible forestry Resource Safety and Processing Utilization, National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, China
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, JiangShu, Nanjing, China
| | - Wen Li
- Hunan Province Key Laboratory of Edible forestry Resource Safety and Processing Utilization, National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, China
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, JiangShu, Nanjing, China
| | - Qiong Peng
- Hunan Province Key Laboratory of Edible forestry Resource Safety and Processing Utilization, National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, China
| | - Yong Fang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, JiangShu, Nanjing, China
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Khan H, Beck C, Kunze A. Multi-curvature micropatterns unveil distinct calcium and mitochondrial dynamics in neuronal networks. LAB ON A CHIP 2021; 21:1164-1174. [PMID: 33543185 PMCID: PMC7990709 DOI: 10.1039/d0lc01205j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Tangential curvatures are a key geometric feature of tissue folds in the human cerebral cortex. In the brain, these smoother and firmer bends are called gyri and sulci and form distinctive curved tissue patterns imposing a mechanical stimulus on neuronal networks. This stimulus is hypothesized to be essential for proper brain cell function but lacks in most standard neuronal cell assays. A variety of soft lithographic micropatterning techniques can be used to integrate round geometries in cell assays. Most microfabricated patterns, however, focus only on a small set of defined curvatures. In contrast, curvatures in the brain span a wide physical range, leaving it unknown which precise role distinct curvatures may play on neuronal cell signaling. Here we report a hydrogel-based multi-curvature design consisting of over twenty bands of distinct parallel curvature ranges to precisely engineer neuronal networks' growth and signaling under patterns of arcs. Monitoring calcium and mitochondrial dynamics in primary rodent neurons grown over two weeks in the multi-curvature patterns, we found that static calcium signaling was locally attenuated under higher curvatures (k > 0.01 μm-1). In contrast, to randomize growth, transient calcium signaling showed higher synchronicity when neurons formed networks in confined multi-curvature patterns. Additionally, we found that mitochondria showed lower motility under high curvatures (k > 0.01 μm-1) than under lower curvatures (k < 0.01 μm-1). Our results demonstrate how sensitive neuronal cell function may be linked and controlled through specific curved geometric features. Furthermore, the hydrogel-based multi-curvature design possesses high compatibility with various surfaces, allowing a flexible integration of geometric features into next-generation neuro devices, cell assays, tissue engineering, and implants.
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Affiliation(s)
- Hammad Khan
- Department of Electrical and Computer Engineering, Montana State University, Bozeman, Montana 59717, USA.
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Tenje M, Cantoni F, Porras Hernández AM, Searle SS, Johansson S, Barbe L, Antfolk M, Pohlit H. A practical guide to microfabrication and patterning of hydrogels for biomimetic cell culture scaffolds. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.ooc.2020.100003] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Hun T, Liu Y, Guo Y, Sun Y, Fan Y, Wang W. A micropore array-based solid lift-off method for highly efficient and controllable cell alignment and spreading. MICROSYSTEMS & NANOENGINEERING 2020; 6:86. [PMID: 34567696 PMCID: PMC8433473 DOI: 10.1038/s41378-020-00191-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 05/03/2020] [Indexed: 05/04/2023]
Abstract
Interpretation of cell-cell and cell-microenvironment interactions is critical for both advancing knowledge of basic biology and promoting applications of regenerative medicine. Cell patterning has been widely investigated in previous studies. However, the reported methods cannot simultaneously realize precise control of cell alignment and adhesion/spreading with a high efficiency at a high throughput. Here, a novel solid lift-off method with a micropore array as a shadow mask was proposed. Efficient and precise control of cell alignment and adhesion/spreading are simultaneously achieved via an ingeniously designed shadow mask, which contains large micropores (capture pores) in central areas and small micropores (spreading pores) in surrounding areas contributing to capture/alignment and adhesion/spreading control, respectively. The solid lift-off functions as follows: (1) protein micropattern generates through both the capture and spreading pores, (2) cell capture/alignment control is realized through the capture pores, and (3) cell adhesion/spreading is controlled through previously generated protein micropatterns after lift-off of the shadow mask. High-throughput (2.4-3.2 × 104 cells/cm2) cell alignments were achieved with high efficiencies (86.2 ± 3.2%, 56.7 ± 9.4% and 51.1 ± 4.0% for single-cell, double-cell, and triple-cell alignments, respectively). Precise control of cell spreading and applications for regulating cell skeletons and cell-cell junctions were investigated and verified using murine skeletal muscle myoblasts. To the best of our knowledge, this is the first report to demonstrate highly efficient and controllable multicell alignment and adhesion/spreading simultaneously via a simple solid lift-off operation. This study successfully fills a gap in literatures and promotes the effective and reproducible application of cell patterning in the fields of both basic mechanism studies and applied medicine.
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Affiliation(s)
- Tingting Hun
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, 100191 Beijing, China
- Institute of Microelectronics, Peking University, 100871 Beijing, China
- State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, 200050 Shanghai, China
| | - Yaoping Liu
- Institute of Microelectronics, Peking University, 100871 Beijing, China
| | - Yechang Guo
- Institute of Microelectronics, Peking University, 100871 Beijing, China
| | - Yan Sun
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, 100191 Beijing, China
- State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, 200050 Shanghai, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, 100083 Beijing, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, 100191 Beijing, China
- State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, 200050 Shanghai, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, 100083 Beijing, China
| | - Wei Wang
- Institute of Microelectronics, Peking University, 100871 Beijing, China
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, 100871 Beijing, China
- Frontiers Science Center for Nano-optoelectronics, Peking University, 100871 Beijing, China
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Cao X, Ashfaq R, Cheng F, Maharjan S, Li J, Ying G, Hassan S, Xiao H, Yue K, Zhang YS. A Tumor-on-a-Chip System with Bioprinted Blood and Lymphatic Vessel Pair. ADVANCED FUNCTIONAL MATERIALS 2019; 29:1807173. [PMID: 33041741 PMCID: PMC7546431 DOI: 10.1002/adfm.201807173] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Indexed: 05/20/2023]
Abstract
Current in vitro anti-tumor drug screening strategies are insufficiently portrayed lacking true perfusion and draining microcirculation systems, which may post significant limitation in reproducing the transport kinetics of cancer therapeutics explicitly. Herein, we report the fabrication of an improved tumor model consisting of bioprinted hollow blood vessel and lymphatic vessel pair, hosted in a three-dimensional (3D) tumor microenvironment-mimetic hydrogel matrix, termed as the tumor-on-a-chip with bioprinted blood and lymphatic vessel pair (TOC-BBL). The bioprinted blood vessel was perfusable channel with opening on both ends while the bioprinted lymphatic vessel was blinded on one end, both of which were embedded in a hydrogel tumor mass, with vessel permeability individually tunable through optimization of the composition of the bioinks. We demonstrated that systems with different combinations of these bioprinted blood/lymphatic vessels exhibited varying levels of diffusion profiles for biomolecules and anti-cancer drugs. Our TOC-BBL platform mimicking the natural pathway of drug-tumor interactions would have the drug introduced through the perfusable blood vessel, cross the vascular wall into the tumor tissue via diffusion, and eventually drained into the lymphatic vessel along with the carrier flow. Our results suggested that this unique in vitro tumor model containing the bioprinted blood/lymphatic vessel pair may have the capacity of simulating the complex transport mechanisms of certain pharmaceutical compounds inside the tumor microenvironment, potentially providing improved accuracy in future cancer drug screening.
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Affiliation(s)
- Xia Cao
- Division of Engineering in Medicine, Brigham and Women’s Hospital; Department of Medicine, Harvard Medical School Cambridge, MA, 02139; Department of Pharmaceutics and Tissue Engineering, School of Pharmacy, Jiangsu University, Zhenjiang 212013, P.R. China
| | - Ramla Ashfaq
- Division of Engineering in Medicine, Brigham and Women’s Hospital; Department of Medicine, Harvard Medical School Cambridge, MA, 02139; National Center of Excellence in Molecular Biology, University of the Punjab, 87 West Canal Bank Rd, Thokar Niaz Baig, Lahore 53700, Pakistan
| | - Feng Cheng
- Division of Engineering in Medicine, Brigham and Women’s Hospital; Department of Medicine, Harvard Medical School Cambridge, MA, 02139
| | - Sushila Maharjan
- Division of Engineering in Medicine, Brigham and Women’s Hospital; Department of Medicine, Harvard Medical School Cambridge, MA, 02139
| | - Jun Li
- Division of Engineering in Medicine, Brigham and Women’s Hospital; Department of Medicine, Harvard Medical School Cambridge, MA, 02139
| | - Guoliang Ying
- Division of Engineering in Medicine, Brigham and Women’s Hospital; Department of Medicine, Harvard Medical School Cambridge, MA, 02139
| | - Shabir Hassan
- Division of Engineering in Medicine, Brigham and Women’s Hospital; Department of Medicine, Harvard Medical School Cambridge, MA, 02139
| | - Haiyan Xiao
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, P.R. China State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, P.R. China
| | - Kan Yue
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, P.R. China State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, P.R. China
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Brigham and Women’s Hospital; Department of Medicine, Harvard Medical School Cambridge, MA, 02139
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Rani E, Mohshim SA, Ahmad MZ, Goodacre R, Alang Ahmad SA, Wong LS. Polymer Pen Lithography-Fabricated DNA Arrays for Highly Sensitive and Selective Detection of Unamplified Ganoderma Boninense DNA. Polymers (Basel) 2019; 11:polym11030561. [PMID: 30960545 PMCID: PMC6474127 DOI: 10.3390/polym11030561] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/19/2019] [Accepted: 03/22/2019] [Indexed: 01/18/2023] Open
Abstract
There is an increasing demand for lithography methods to enable the fabrication of diagnostic devices for the biomedical and agri-food sectors. In this regard, scanning probe lithography methods have emerged as a possible approach for this purpose, as they are not only convenient, robust and accessible, but also enable the deposition of “soft” materials such as complex organic molecules and biomolecules. In this report, the use of polymer pen lithography for the fabrication of DNA oligonucleotide arrays is described, together with the application of the arrays for the sensitive and selective detection of Ganoderma boninense, a fungal pathogen of the oil palm. When used in a sandwich assay format with DNA-conjugated gold nanoparticles, this system is able to generate a visually observable result in the presence of the target DNA. This assay is able to detect as little as 30 ng of Ganoderma-derived DNA without any pre-amplification and without the need for specialist laboratory equipment or training.
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Affiliation(s)
- Ekta Rani
- Manchester Institute of Biotechnology and School of Chemistry, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK.
| | - Siti Akhtar Mohshim
- Department of Chemistry, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
- Biotechnology and Nanotechnology Research Centre, Malaysian Agricultural Research and Development Institute, Serdang 43400, Selangor, Malaysia.
| | - Muhammad Zamharir Ahmad
- Biotechnology and Nanotechnology Research Centre, Malaysian Agricultural Research and Development Institute, Serdang 43400, Selangor, Malaysia.
| | - Royston Goodacre
- Manchester Institute of Biotechnology and School of Chemistry, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK.
| | - Shahrul Ainliah Alang Ahmad
- Department of Chemistry, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
- Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia.
| | - Lu Shin Wong
- Manchester Institute of Biotechnology and School of Chemistry, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK.
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Weydert S, Girardin S, Cui X, Zürcher S, Peter T, Wirz R, Sterner O, Stauffer F, Aebersold MJ, Tanner S, Thompson-Steckel G, Forró C, Tosatti S, Vörös J. A Versatile Protein and Cell Patterning Method Suitable for Long-Term Neural Cultures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:2966-2975. [PMID: 30767535 DOI: 10.1021/acs.langmuir.8b03730] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Herein, we present an easy-to-use protein and cell patterning method relying solely on pipetting, rinsing steps and illumination with a desktop lamp, which does not require any expensive laboratory equipment, custom-built hardware or delicate chemistry. This method is based on the adhesion promoter poly(allylamine)-grafted perfluorophenyl azide, which allows UV-induced cross-linking with proteins and the antifouling molecule poly(vinylpyrrolidone). Versatility is demonstrated by creating patterns with two different proteins and a polysaccharide directly on plastic well plates and on glass slides, and by subsequently seeding primary neurons and C2C12 myoblasts on the patterns to form islands and mini-networks. Patterning characterization is done via immunohistochemistry, Congo red staining, ellipsometry, and infrared spectroscopy. Using a pragmatic setup, patterning contrasts down to 5 μm and statistically significant long-term stability superior to the gold standard poly(l-lysine)-grafted poly(ethylene glycol) could be obtained. This simple method can be used in any laboratory or even in classrooms and its outstanding stability is especially interesting for long-term cell experiments, e.g., for bottom-up neuroscience, where well-defined microislands and microcircuits of primary neurons are studied over weeks.
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Affiliation(s)
- Serge Weydert
- Laboratory of Biosensors and Bioelectronics , ETH Zurich , Gloriastrasse 35 , 8092 Zurich , Switzerland
| | - Sophie Girardin
- Laboratory of Biosensors and Bioelectronics , ETH Zurich , Gloriastrasse 35 , 8092 Zurich , Switzerland
| | - Xinnan Cui
- Department of Chemical Engineering, Graduate School of Engineering , Kyushu University , 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan
| | - Stefan Zürcher
- SuSoS AG , Lagerstrasse 14 , 8600 Dübendorf , Switzerland
| | - Thomas Peter
- Laboratory of Biosensors and Bioelectronics , ETH Zurich , Gloriastrasse 35 , 8092 Zurich , Switzerland
| | - Ronny Wirz
- Bruker Optics GmbH , Industriestrasse 26 , 8117 Fällanden , Switzerland
| | - Olof Sterner
- SuSoS AG , Lagerstrasse 14 , 8600 Dübendorf , Switzerland
| | - Flurin Stauffer
- Laboratory of Biosensors and Bioelectronics , ETH Zurich , Gloriastrasse 35 , 8092 Zurich , Switzerland
| | - Mathias J Aebersold
- Laboratory of Biosensors and Bioelectronics , ETH Zurich , Gloriastrasse 35 , 8092 Zurich , Switzerland
| | - Stefanie Tanner
- Laboratory of Biosensors and Bioelectronics , ETH Zurich , Gloriastrasse 35 , 8092 Zurich , Switzerland
| | - Greta Thompson-Steckel
- Laboratory of Biosensors and Bioelectronics , ETH Zurich , Gloriastrasse 35 , 8092 Zurich , Switzerland
| | - Csaba Forró
- Laboratory of Biosensors and Bioelectronics , ETH Zurich , Gloriastrasse 35 , 8092 Zurich , Switzerland
| | | | - János Vörös
- Laboratory of Biosensors and Bioelectronics , ETH Zurich , Gloriastrasse 35 , 8092 Zurich , Switzerland
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Zarrintaj P, Manouchehri S, Ahmadi Z, Saeb MR, Urbanska AM, Kaplan DL, Mozafari M. Agarose-based biomaterials for tissue engineering. Carbohydr Polym 2018; 187:66-84. [PMID: 29486846 DOI: 10.1016/j.carbpol.2018.01.060] [Citation(s) in RCA: 323] [Impact Index Per Article: 53.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 12/28/2017] [Accepted: 01/18/2018] [Indexed: 01/08/2023]
Abstract
Agarose is a natural polysaccharide polymer having unique characteristics that give reason to consider it for tissue engineering applications. Special characteristics of agarose such as its excellent biocompatibility, thermo-reversible gelation behavior and physiochemical features support its use as a biomaterial for cell growth and/or controlled/localized drug delivery. The resemblance of this natural carbohydrate polymer to the extracellular matrix results in attractive features that bring about a strong interest in its usage in the field. The scope of this review is to summarize the extensive researches addressing agarose-based biomaterials in order to provide an in-depth understanding of its tissue engineering-related applications.
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Affiliation(s)
- Payam Zarrintaj
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Saeed Manouchehri
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Zahed Ahmadi
- Department of Chemistry, Amirkabir University of Technology, Tehran, Iran
| | - Mohammad Reza Saeb
- Department of Resin and Additives, Institute for Color Science and Technology, P.O. Box: 16765-654, Tehran, Iran.
| | | | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Masoud Mozafari
- Bioengineering Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), Tehran, Iran; Cellular and Molecular Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran; Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran.
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Lee YB, Kim SJ, Kim EM, Byun H, Chang HK, Park J, Choi YS, Shin H. Microcontact printing of polydopamine on thermally expandable hydrogels for controlled cell adhesion and delivery of geometrically defined microtissues. Acta Biomater 2017; 61:75-87. [PMID: 28760620 DOI: 10.1016/j.actbio.2017.07.040] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/10/2017] [Accepted: 07/27/2017] [Indexed: 02/07/2023]
Abstract
Scaffold-free harvest of microtissue with a defined structure has received a great deal of interest in cell-based assay and regenerative medicine. In this study, we developed thermally expandable hydrogels with spatially controlled cell adhesive patterns for rapid harvest of geometrically controlled microtissue. We patterned polydopamine (PD) on to the hydrogel via microcontact printing (μCP), in linear shapes with widths of 50, 100 and 200μm. The hydrogels facilitated formation of spatially controlled strip-like microtissue of human dermal fibroblasts (HDFBs). It was possible to harvest and translocate microtissues with controlled widths of 61.4±14.7, 104.3±15.6, and 186.6±22.3μm from the hydrogel to glass substrates by conformal contact upon expansion of the hydrogel in response to a temperature change from 37 to 4°C, preserving high viability, extracellular matrix, and junction proteins. Microtissues were readily translocated in vivo to the subcutaneous tissue of mouse. The microtissues were further utilized as a simple assay model for monitoring of contraction in response to ROCK1 inhibitor. Collectively, micro-sized patterning of PD on the thermally expandable hydrogels via μCP holds promise for the development of microtissue harvesting systems that can be employed to ex vivo tissue assay and cell-based therapy. STATEMENT OF SIGNIFICANCE Harvest of artificial tissue with controlled cellular arrangement independently from external materials has been widely studied in cell-based assay and regenerative medicine. In this study, we developed scaffold-free harvest system of microtissues with anisotropic arrangement and controlled width by exploiting thermally expandable hydrogels with cell-adhesive patterns of polydopamine formed by simple microcontact printing. Cultured strips of human dermal fibroblasts on the hydrogels were rapidly delivered to various targets ranging from flat coverglass to mice subcutaneous tissue by thermal expansion of the hydrogel at 4°C for 10min. These were further utilized as a drug screening model responding to ROCK1 inhibitor, which imply its versatile applicability.
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Qiao W, Huang W, Liu Y, Li X, Chen LS, Tang JX. Toward Scalable Flexible Nanomanufacturing for Photonic Structures and Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:10353-10380. [PMID: 27976840 DOI: 10.1002/adma.201601801] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 07/31/2016] [Indexed: 06/06/2023]
Abstract
Continuous and scalable nanopatterning over flexible substrates is highly desirable for both commercial and scientific interests, but is difficult to realize with traditional photolithographic processes. The recent advancements in nanofabrication methodologies enable light management with photonic structures on flexible materials, providing an increasingly popular strategy to control the light harvesting in the optoelectronic devices of photovoltaics, and in organic and inorganic light-emitting diodes. Here, the current status of nanopatterning technologies for the fabrication of optoelectronic devices is summarized. Scalable nanopatterning technologies for nanomanufacturing on flexible materials are emphasized. Critical challenges in various patterning techniques when considering the resolution, scalability, processing throughput, and the use of masks and resists are addressed. The integration of flexible nanopatterned substrates with light manipulation in organic optoelectronic devices is also discussed; this enables the control of light flux and spectra. Finally, potential development directions are highlighted.
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Affiliation(s)
- Wen Qiao
- Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China
- College of Physics, Optoelectronics and Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province, Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215006, China
| | - Wenbin Huang
- Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China
- College of Physics, Optoelectronics and Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province, Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215006, China
| | - Yanhua Liu
- Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China
- College of Physics, Optoelectronics and Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province, Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215006, China
| | - Xiangmin Li
- Micro-/Nano-technology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shanxi, 710049, China
| | - Lin-Sen Chen
- Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China
- College of Physics, Optoelectronics and Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province, Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215006, China
| | - Jian-Xin Tang
- Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
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Song R, Liang J, Lin L, Zhang Y, Yang Y, Lin C. A facile construction of gradient micro-patterned OCP coatings on medical titanium for high throughput evaluation of biocompatibility. J Mater Chem B 2016; 4:4017-4024. [DOI: 10.1039/c6tb00458j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A facile construction of gradient micro-patterned octacalcium phosphate (OCP) coatings on titanium was developed for high-throughput screening of biocompatibility and bioactivity.
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Affiliation(s)
- Ran Song
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- and Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - Jianhe Liang
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- and Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - Longxiang Lin
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- and Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - Yanmei Zhang
- Beijing Medical Implant Engineering Research Center
- Beijing 100082
- China
- Beijing Engineering Laboratory of Functional Medical Materials and Devices
- Beijing 100082
| | - Yun Yang
- Beijing Medical Implant Engineering Research Center
- Beijing 100082
- China
- Beijing Engineering Laboratory of Functional Medical Materials and Devices
- Beijing 100082
| | - Changjian Lin
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- and Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
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