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Ushijima N, Akasaka T, Numamoto S, Kudo T, Yokoyama A. In vivo transmission electron microscopy of the alternating structure of the protrusions between adjacent macrophage-like cells on micropatterns. J Oral Biosci 2023; 65:259-263. [PMID: 37393036 DOI: 10.1016/j.job.2023.06.003] [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: 05/29/2023] [Revised: 06/23/2023] [Accepted: 06/25/2023] [Indexed: 07/03/2023]
Abstract
OBJECTIVES We investigated the behavior of macrophages in the defined microtopography of materials. METHODS Patterned cyclo-olefin polymer films were implanted into the femurs of seven-week-old rats. After 1 and 4 weeks, the rats were fixed with glutaraldehyde and OsO4, and their bones were observed with transmission electron microscopy (TEM). RESULTS TEM and segmentation revealed an alternating structure in which multiple protrusions of adjacent macrophage-like cells overlapped. They were approximately 2 μm long and almost uniform in width, and were induced by the limited topography. CONCLUSION New structures appeared between the macrophage-like cells as a result of microtopography.
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Affiliation(s)
- Natsumi Ushijima
- Support Section for Education and Research, Faculty of Dental Medicine, Hokkaido University, Sapporo 060-8586, Japan.
| | - Tsukasa Akasaka
- Department of Biomaterials and Bioengineering, Faculty of Dental Medicine, Hokkaido University, Sapporo 060-8586, Japan
| | - Shinichiro Numamoto
- Oral Functional Prosthodontics, Division of Oral Functional Science, Faculty of Dental Medicine, Hokkaido University, Sapporo 060-8586, Japan
| | - Tsubura Kudo
- Oral Functional Prosthodontics, Division of Oral Functional Science, Faculty of Dental Medicine, Hokkaido University, Sapporo 060-8586, Japan
| | - Atsuro Yokoyama
- Oral Functional Prosthodontics, Division of Oral Functional Science, Faculty of Dental Medicine, Hokkaido University, Sapporo 060-8586, Japan
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Tao C, Jin M, Yao H, Wang DA. Dopamine based adhesive nano-coatings on extracellular matrix (ECM) based grafts for enhanced host-graft interfacing affinity. NANOSCALE 2021; 13:18148-18159. [PMID: 34709280 DOI: 10.1039/d1nr06284k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Interfacing affinity between grafts and host tissues is an urgent issue that needs to be addressed for the clinical translation of tissue engineered extracellular matrix (ECM) based grafts. Dopamine is known as a universal adhesive, the catechol groups on which could form chelating bonds with metal ions. Herein we developed an adhesive nano-coating on ECM based grafts which could crosslink in situ with ferric ions for fixation with surrounding tissues after implantation without affecting the porous structures of the grafts. Therefore, decellularized living hyaline cartilage graft (dLhCG), a model ECM-based graft, with dopamine based natural biological material adhesive coatings was manufactured to address the interfacing affinity issue between ECM-based grafts and cartilage. A macromolecule backbone was needed for the coating material to avoid the formation of a rigid crosslinking system and adverse effects caused by small molecules of dopamine. Chondroitin sulfate (CS), a cartilage derived sulfated GAG, was chosen as the backbone to fabricate dopamine modified CS (CSD) with no impurities introduced to the joint. Dopamine modified serum albumin (BCD) was also chosen for the favorable biocompatibility of albumin. Both dLhCG coated with CSD and dLhCG coated with BCD showed enhanced adhesive strength with cartilage after chelating with ferric ions in situ compared to dLhCG and further potential in improving the interfacing affinity of dLhCG with cartilage.
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Affiliation(s)
- Chao Tao
- Karolinska Institutet Ming Wai Lau Centre for Reparative Medicine, HKSTP, Sha Tin, Hong Kong SAR.
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Min Jin
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Hang Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, Jiangsu, P. R. China.
| | - Dong-An Wang
- Karolinska Institutet Ming Wai Lau Centre for Reparative Medicine, HKSTP, Sha Tin, Hong Kong SAR.
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, P. R. China
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Paun IA, Calin BS, Mustaciosu CC, Tanasa E, Moldovan A, Niemczyk A, Dinescu M. Laser Direct Writing via Two-Photon Polymerization of 3D Hierarchical Structures with Cells-Antiadhesive Properties. Int J Mol Sci 2021; 22:ijms22115653. [PMID: 34073424 PMCID: PMC8198338 DOI: 10.3390/ijms22115653] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/06/2021] [Accepted: 05/24/2021] [Indexed: 01/04/2023] Open
Abstract
We report the design and fabrication by laser direct writing via two photons polymerization of innovative hierarchical structures with cell-repellency capability. The structures were designed in the shape of “mushrooms”, consisting of an underside (mushroom’s leg) acting as a support structure and a top side (mushroom’s hat) decorated with micro- and nanostructures. A ripple-like pattern was created on top of the mushrooms, over length scales ranging from several µm (microstructured mushroom-like pillars, MMP) to tens of nm (nanostructured mushroom-like pillars, NMP). The MMP and NMP structures were hydrophobic, with contact angles of (127 ± 2)° and (128 ± 4)°, respectively, whereas flat polymer surfaces were hydrophilic, with a contact angle of (43 ± 1)°. The cell attachment on NMP structures was reduced by 55% as compared to the controls, whereas for the MMP, a reduction of only 21% was observed. Moreover, the MMP structures preserved the native spindle-like with phyllopodia cellular shape, whereas the cells from NMP structures showed a round shape and absence of phyllopodia. Overall, the NMP structures were more effective in impeding the cellular attachment and affected the cell shape to a greater extent than the MMP structures. The influence of the wettability on cell adhesion and shape was less important, the cellular behavior being mainly governed by structures’ topography.
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Affiliation(s)
- Irina A. Paun
- Center for Advanced Laser Technologies (CETAL), National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele-Ilfov, Romania;
- Faculty of Applied Sciences, University Politehnica of Bucharest, RO-060042 Bucharest, Romania;
- Correspondence: ; Tel.: +40-770-612-912
| | - Bogdan S. Calin
- Center for Advanced Laser Technologies (CETAL), National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele-Ilfov, Romania;
- Faculty of Applied Sciences, University Politehnica of Bucharest, RO-060042 Bucharest, Romania;
| | - Cosmin C. Mustaciosu
- Horia Hulubei National Institute for Physics and Nuclear Engineering IFIN-HH, RO-077125 Magurele-Ilfov, Romania;
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, RO-060042 Bucharest, Romania
| | - Eugenia Tanasa
- Faculty of Applied Sciences, University Politehnica of Bucharest, RO-060042 Bucharest, Romania;
- National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele-Ilfov, Romania; (A.M.); (M.D.)
| | - Antoniu Moldovan
- National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele-Ilfov, Romania; (A.M.); (M.D.)
| | - Agata Niemczyk
- Department of Materials Technology, Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, 19 Piastow Ave, 70-310 Szczecin, Poland;
| | - Maria Dinescu
- National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele-Ilfov, Romania; (A.M.); (M.D.)
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Tchobanian A, Ceyssens F, Cóndor Salgado M, Van Oosterwyck H, Fardim P. Patterned dextran ester films as a tailorable cell culture platform. Carbohydr Polym 2021; 252:117183. [PMID: 33183630 DOI: 10.1016/j.carbpol.2020.117183] [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: 07/28/2020] [Revised: 09/24/2020] [Accepted: 09/29/2020] [Indexed: 01/22/2023]
Abstract
The elucidation of cell-surface interactions and the development of model platforms to help uncover their underlying mechanisms remains vital to the design of effective biomaterials. To this end, dextran palmitates with varying degrees of substitution were synthesised with a multipurpose functionality: an ability to modulate surface energy through surface chemistry, and an ideal thermal behaviour for patterning. Herein, dextran palmitate films are produced by spin coating, and patterned by thermal nanoimprint lithography with nano-to-microscale topographies. These films of moderately hydrophobic polysaccharide esters with low nanoscale roughness performed as well as fibronectin coatings in the culture of bovine aortic endothelial cells. Upon patterning, they display distinct regions of roughness, restricting cell adhesion to the smoothest surfaces, while guiding multicellular arrangements in the patterned topographies. The development of biomaterial interfaces through topochemical fabrication such as this could prove useful in understanding protein and cell-surface interactions.
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Affiliation(s)
- Armen Tchobanian
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium.
| | - Frederik Ceyssens
- Department of Electrical Engineering, ESAT-MICAS, KU Leuven, Kasteelpark Arenberg 10, B-3001 Heverlee, Belgium.
| | - Mar Cóndor Salgado
- Department of Mechanical Engineering, KU Leuven, Celestijnenlaan 300, B-3001 Heverlee, Belgium.
| | - Hans Van Oosterwyck
- Department of Mechanical Engineering, KU Leuven, Celestijnenlaan 300, B-3001 Heverlee, Belgium; Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Herestraat 49 - bus 813, Leuven, Belgium.
| | - Pedro Fardim
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium.
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Yesildag C, Bartsch C, Lensen MC. Micropatterning of Au NPs on PEG Hydrogels Using Different Silanes To Control Cell Adhesion on the Nanocomposites. ACS OMEGA 2018; 3:7214-7223. [PMID: 30087909 PMCID: PMC6068692 DOI: 10.1021/acsomega.8b00863] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/18/2018] [Indexed: 06/08/2023]
Abstract
Amino-silanization of silica-based substrates has proven to be effective in guiding the immobilization of citrate-stabilized Au NPs in a good, homogeneous fashion. This accomplishment has formed the basis of fabricating micropatterns of Au NPs on such substrates by patterning of oxidized silicon wafers with (3-aminopropyl)trimethoxysilane (amino-silane) using the microcontact printing (μCP) process. This micropattern of amino-silane is used to specifically adsorb Au NPs. To avoid unspecific adsorption to the nonsilanized areas on the silicon wafers, the nonstamped areas were backfilled with self-assembled monolayers of organosilanes, for example, with methyl- or perfluoro-end-groups. Finally, after having fabricated a micropattern of Au NPs on silicon wafers, the Au NP patterns were transferred onto poly(ethylene glycol) hydrogels by our newly developed procedures, and on these nanocomposite materials, controlled cell adhesion has been achieved. Furthermore, these materials are great candidates for plasmon-based biosensor applications and also for various medical applications, such as for drug delivery systems or photothermal therapies.
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Affiliation(s)
- Cigdem Yesildag
- Technische Universität Berlin,
Nanopatterned Biomaterials, Sekr. TC 1, Strasse des 17. Juni 124, 10623 Berlin, Germany
| | - Christoph Bartsch
- Technische Universität Berlin,
Nanopatterned Biomaterials, Sekr. TC 1, Strasse des 17. Juni 124, 10623 Berlin, Germany
| | - Marga C. Lensen
- Technische Universität Berlin,
Nanopatterned Biomaterials, Sekr. TC 1, Strasse des 17. Juni 124, 10623 Berlin, Germany
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Wang Z, Zhou R, Wen F, Zhang R, Ren L, Teoh SH, Hong M. Reliable laser fabrication: the quest for responsive biomaterials surface. J Mater Chem B 2018; 6:3612-3631. [DOI: 10.1039/c7tb02545a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This review presents current efforts in laser fabrication, focusing on the surface features of biomaterials and their biological responses; this provides insight into the engineering of bio-responsive surfaces for future medical devices.
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Affiliation(s)
- Zuyong Wang
- College of Materials Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Rui Zhou
- School of Aerospace Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Feng Wen
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637457
- Singapore
| | - Rongkai Zhang
- The Third Affiliated Hospital of Southern Medical University
- Guangzhou 510630
- P. R. China
| | - Lei Ren
- College of Materials Science
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Swee Hin Teoh
- College of Materials Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- School of Chemical and Biomedical Engineering
| | - Minghui Hong
- School of Aerospace Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
- Department of Electrical and Computer Engineering
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Yesildag C, Bartsch C, De Vicente G, Lensen MC. Novel Wet Micro-Contact Deprinting Method for Patterning Gold Nanoparticles on PEG-Hydrogels and Thereby Controlling Cell Adhesion. Polymers (Basel) 2017; 9:E176. [PMID: 30970856 PMCID: PMC6432305 DOI: 10.3390/polym9050176] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/08/2017] [Accepted: 05/11/2017] [Indexed: 12/21/2022] Open
Abstract
In the present work we introduce a novel method to create linear and rectangular micro-patterns of gold nanoparticles (Au NPs) on poly(ethylene glycol) (PEG) hydrogels. The strategy consists of removing Au NPs from defined regions of the silicon wafer by virtue of the swelling effect of the hydrogel. Using this method, which we denote as "Wet Micro-Contact Deprinting", well-defined micro-patterns of Au NPs on silicon can be created. This resulting pattern is then transferred from the hard substrate to the soft surface of PEG-hydrogels. These unique micro- and nano-patterned hydrogels were cultured with mouse fibroblasts L929 cells. The cells selectively adhered on the Au NPs coated area and avoided the pure PEG material. These patterned, nanocomposite biointerfaces are not only useful for biological and biomedical applications, such as tissue engineering and diagnostics, but also, for biosensor applications taking advantage of surface plasmon resonance (SPR) or surface enhanced Raman scattering (SERS) effects, due to the optical properties of the Au NPs.
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Affiliation(s)
- Cigdem Yesildag
- Technische Universität Berlin, Nanopatterned Biomaterials, Sekr. TC 1, Strasse des 17. Juni 124, 10623 Berlin, Germany.
| | - Christoph Bartsch
- Technische Universität Berlin, Nanopatterned Biomaterials, Sekr. TC 1, Strasse des 17. Juni 124, 10623 Berlin, Germany.
| | - Gonzalo De Vicente
- Technische Universität Berlin, Nanopatterned Biomaterials, Sekr. TC 1, Strasse des 17. Juni 124, 10623 Berlin, Germany.
| | - Marga C Lensen
- Technische Universität Berlin, Nanopatterned Biomaterials, Sekr. TC 1, Strasse des 17. Juni 124, 10623 Berlin, Germany.
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Goor OJGM, Brouns JEP, Dankers PYW. Introduction of anti-fouling coatings at the surface of supramolecular elastomeric materials via post-modification of reactive supramolecular additives. Polym Chem 2017. [DOI: 10.1039/c7py00801e] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A covalent anti-fouling is introduced at the surface of supramolecular ureidopyrimidinone (UPy) based materials to prevent both protein and cell adhesion.
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Affiliation(s)
- Olga J. G. M. Goor
- Institute for Complex Molecular Systems
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
- Laboratory of Chemical Biology
| | - Joyce E. P. Brouns
- Institute for Complex Molecular Systems
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
- Laboratory of Chemical Biology
| | - Patricia Y. W. Dankers
- Institute for Complex Molecular Systems
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
- Laboratory of Chemical Biology
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