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Tzadka S, Ureña Martin C, Toledo E, Yassin AAK, Pandey A, Le Saux G, Porgador A, Schvartzman M. A Novel Approach for Colloidal Lithography: From Dry Particle Assembly to High-Throughput Nanofabrication. ACS APPLIED MATERIALS & INTERFACES 2024; 16:17846-17856. [PMID: 38549366 DOI: 10.1021/acsami.3c18554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
We introduce a novel approach for colloidal lithography based on the dry particle assembly into a dense monolayer on an elastomer, followed by mechanical transfer to a substrate of any material and curvature. This method can be implemented either manually or automatically and it produces large area patterns with the quality obtained by the state-of-the-art colloidal lithography at a very high throughput. We first demonstrated the fabrication of nanopatterns with a periodicity ranging between 200 nm and 2 μm. We then demonstrated two nanotechnological applications of this approach. The first one is antireflective structures, fabricated on silicon and sapphire, with different geometries including arrays of bumps and holes and adjusted for different spectral ranges. The second one is smart 3D nanostructures for mechanostimulation of T cells that are used for their effective proliferation, with potential application in cancer immunotherapy. This new approach unleashes the potential of bottom-up nanofabrication and paves the way for nanoscale devices and systems in numerous applications.
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Affiliation(s)
- Sivan Tzadka
- Department of Materials Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Carlos Ureña Martin
- Department of Materials Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Esti Toledo
- Department of Materials Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Abed Al Kader Yassin
- The Shraga Segal Department of Microbiology, Immunology, and Genetics Faculty of Health Sciences, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Ashish Pandey
- Department of Materials Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Guillaume Le Saux
- Department of Materials Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Angel Porgador
- The Shraga Segal Department of Microbiology, Immunology, and Genetics Faculty of Health Sciences, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Mark Schvartzman
- Department of Materials Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
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Bae I, Kim BH. Drug release control and anti-inflammatory effect of biodegradable polymer surface modified by gas phase chemical functional reaction. Biomed Mater 2024; 19:025045. [PMID: 38364287 DOI: 10.1088/1748-605x/ad2a38] [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: 09/25/2023] [Accepted: 02/16/2024] [Indexed: 02/18/2024]
Abstract
The plasma technique has been widely used to modify the surfaces of materials. The purpose of this study was to evaluate the probability of controlling the prednisolone delivery velocity on a polylactic acid (PLA) surface modified by plasma surface treatment. Surface modification of PLA was performed at a low-pressure radio frequency under conditions of 100 W power, 50 mTorr chamber pressure, 100-200 sccm of flow rate, and Ar, O2, and CH4gases. The plasma surface-modified PLA was characterized using scanning emission microscope, x-ray photoelectron spectroscopy (XPS), and contact angle measurements.In vitroevaluations were performed to determine cellular response, drug release behavior, and anti-inflammatory effects. The PLA surface morphology was changed to a porous structure (with a depth of approximately 100 μm) and the surface roughness was also significantly increased. The XPS results demonstrated higher oxygenized carbon contents than those in the non-treated PLA group. The prednisolone holding capacity increased and the release was relatively prolonged in the surface-modified PLA group compared to that in the non-treated PLA group. In addition, cell migration and proliferation significantly increased after PLA treatment alone. The activity of cytokines such as cyclooxygenase-2 (COX-2), tumor necrosis factor-a (TNF-α), interleukin (IL-1β), and IL-6 were considerably reduced in the plasma-treated and prednisolone holding group. Taken together, surface-modified PLA by plasma can provide an alternative approach to conventional physicochemical approaches for sustained anti-inflammatory drug release.
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Affiliation(s)
- Inho Bae
- Convergence Research Center for Treatment of Oral Soft Tissue Disease (MRC), Chosun University, 2 Chosundae 4-gil, Dong-gu, Gwangju 61452, Republic of Korea
| | - Byung-Hoon Kim
- Convergence Research Center for Treatment of Oral Soft Tissue Disease (MRC), Chosun University, 2 Chosundae 4-gil, Dong-gu, Gwangju 61452, Republic of Korea
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González-Torres M, Elizalde-Cárdenas A, Leyva-Gómez G, González-Mendoza O, Lima E, Alfonso-Núñez I, Abad-Contreras DE, Del Prado-Audelo M, Pichardo-Bahena R, Carlos-Martínez A, Ribas-Aparicio RM. Combined use of novel chitosan-grafted N-hydroxyethyl acrylamide polyurethane and human dermal fibroblasts as a construct for in vitro-engineered skin. Int J Biol Macromol 2023; 238:124136. [PMID: 36965555 DOI: 10.1016/j.ijbiomac.2023.124136] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/10/2023] [Accepted: 03/19/2023] [Indexed: 03/27/2023]
Abstract
A rich plethora of information about grafted chitosan (CS) for medical use has been reported. The capability of CS-grafted poly(N-hydroxyethyl acrylamide) (CS-g-PHEAA) to support human dermal fibroblasts (HDFs) in vitro has been proven. However, CS-grafted copolymers lack good stiffness and the characteristic microstructure of a cellular matrix. In addition, whether CS-g-PHEAA can be used to prepare a scaffold with a suitable morphology and mechanical properties for skin tissue engineering (STE) is unclear. This study aimed to show for the first time that step-growth polymerizations can be used to obtain polyurethane (PU) platforms of CS-g-PHEAA, which can also have enhanced microhardness and be suitable for in vitro cell culture. The PU prepolymers were prepared from grafted CS, polyethylene glycol, and 1,6-hexamethylene diisocyanate. The results proved that a poly(saccharide-urethane) [(CS-g-PHEAA)-PU] could be successfully synthesized with a more suitable microarchitecture, thermal properties, and topology than CS-PU for the dynamic culturing of fibroblasts. Cytotoxicity, proliferation, histological and immunophenotype assessments revealed significantly higher biocompatibility and cell proliferation of the derivative concerning the controls. Cells cultured on (CS-g-PHEAA)-PU displayed a quiescent state compared to those cultured on CS-PU, which showed an activated phenotype. These findings may be critical factors in future studies establishing wound dressing models.
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Affiliation(s)
- Maykel González-Torres
- Conacyt & Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación "Luís Guillermo Ibarra", Ciudad de Mexico 14389, Mexico.
| | | | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - Oswaldo González-Mendoza
- Conacyt & Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación "Luís Guillermo Ibarra", Ciudad de Mexico 14389, Mexico
| | - Enrique Lima
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Israel Alfonso-Núñez
- Laboratorio de Biomateriales, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - David Eduardo Abad-Contreras
- Laboratorio de Biomateriales, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - María Del Prado-Audelo
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Ciudad de México, Mexico
| | - Raúl Pichardo-Bahena
- Servicio de Anatomía Patológica, Instituto Nacional de Rehabilitación "Luís Guillermo Ibarra", Ciudad de Mexico 14389, Mexico
| | - Alberto Carlos-Martínez
- Laboratorio de Microscopia Electrónica, Instituto Nacional de Rehabilitación "Luís Guillermo Ibarra", Ciudad de Mexico 14389, Mexico
| | - Rosa María Ribas-Aparicio
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de Mexico, 07738, Mexico
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Poyraz Ş, Altınışık Z, Çakmak AS, Şimşek M, Gümüşderelioğlu M. RANDOM/ALIGNED ELECTROSPUN PCL FIBROUS MATRICES WITH MODIFIED SURFACE TEXTURES: CHARACTERIZATION AND INTERACTIONS WITH DERMAL FIBROBLASTS AND KERATINOCYTES. Colloids Surf B Biointerfaces 2022; 218:112724. [DOI: 10.1016/j.colsurfb.2022.112724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 07/15/2022] [Accepted: 07/23/2022] [Indexed: 11/25/2022]
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Cheng Y, Zhu S, Pang SW. Directing osteoblastic cell migration on arrays of nanopillars and nanoholes with different aspect ratios. LAB ON A CHIP 2021; 21:2206-2216. [PMID: 33876172 DOI: 10.1039/d1lc00104c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
To realize highly directional guidance for cell migration, both micro- and nano-scale topographies were studied to better understand and mimic the complex extracellular matrix environment. Polydimethylsiloxane-based platforms with micro- and nano-topographies were developed to systematically study their guidance effects on cell migration behaviors. Compared to microtopography such as flat surface or grating, nanotopographies such as nanoholes and nanopillars could promote the generation of filopodia and extension of long protrusions with increased migration speed for MC3T3-E1 cells. Although cells on the grating structures showed lower migration speed, more directional cell migration was achieved due to their anisotropic topography compared to nanohole or nanopillar arrays with isotropic structures. To further enhance the cell migration directionality, the nanotopographies were patterned in grating arrangements and the results showed that both nanoholes and nanopillars in grating arrangements introduced more directional cell migration compared to gratings. The effects of physical dimensions of the nanotopographies on cell migration were studied and the results showed that there was less cell elongation and less directional migration of the nanoholes in grating arrangements with increasing depth of nanoholes. However, the nanopillars in grating arrangements showed more cell elongation, more directional migration, and higher migration speed with increasing height of the nanopillars. Platforms with nanopillars in grating arrangements and large height could be used to control cell migration speed and directionality, which could potentially lead to cell sorting and screening.
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Affiliation(s)
- Yijun Cheng
- Department of Electrical Engineering, Centre for Biosystems, Neuroscience, and Nanotechnology, City University of Hong Kong, Kowloon, Hong Kong, China.
| | - Shuyan Zhu
- Department of Electrical Engineering, Centre for Biosystems, Neuroscience, and Nanotechnology, City University of Hong Kong, Kowloon, Hong Kong, China.
| | - Stella W Pang
- Department of Electrical Engineering, Centre for Biosystems, Neuroscience, and Nanotechnology, City University of Hong Kong, Kowloon, Hong Kong, China.
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Esmaeilzadeh P, Groth T. Switchable and Obedient Interfacial Properties That Grant New Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25637-25653. [PMID: 31283160 DOI: 10.1021/acsami.9b06253] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Toward imitating the natural smartness and responsivity of biological systems, surface interfacial properties are considered to be responsive and tunable if they show a reactive behavior to an environmental stimulus. This is still quite different from many contemporary biomaterials that lack responsiveness to interact with blood and different body tissues in a physiological manner. Meanwhile it is possible to even go one step further from responsiveness to dual-mode switchability and explore "switchable" or "reversible" responses of synthetic materials. We understand "switchable biomaterials" as materials undergoing a stepwise, structural transformation coupled with considerable changes of interfacial and other surface properties as a response to a stimulus. Therewith, a survey on stimuli-induced dynamic changes of charge, wettability, stiffness, topography, porosity, and thickness/swelling is presented here, as potentially powerful new technologies especially for future biomaterial development. Since living cells constantly sense their environment through a variety of surface receptors and other mechanisms, these obedient interfacial properties were particularly discussed regarding their advantageous multifunctionality for protein adsorption and cell adhesion signaling, which may alter in time and with environmental conditions.
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Affiliation(s)
- Pegah Esmaeilzadeh
- Biomedical Materials Group, Institute of Pharmacy , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale), Germany
- Interdisciplinary Center of Material Science , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale), Germany
| | - Thomas Groth
- Biomedical Materials Group, Institute of Pharmacy , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale), Germany
- Interdisciplinary Center of Material Science , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale), Germany
- Interdisciplinary Center of Applied Sciences , Martin Luther University Halle-Wittenberg , 06099 Halle (Saale), Germany
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Niepel MS, Ekambaram BK, Schmelzer CEH, Groth T. Polyelectrolyte multilayers of poly (l-lysine) and hyaluronic acid on nanostructured surfaces affect stem cell response. NANOSCALE 2019; 11:2878-2891. [PMID: 30688341 DOI: 10.1039/c8nr05529g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Laser interference lithography (LIL) and the layer-by-layer (LbL) technique are combined here for the first time to design a system with variable nanotopographies and surface viscoelasticity to regulate cell behavior. LIL is used to generate hexagonally arranged nanostructures of gold with different periodicity. In contrast, LBL is used to assemble a multilayer system of poly-l-lysine and hyaluronic acid on top of the nanostructures. Moreover, the viscoelastic properties of that system are controlled by chemical cross-linking. We show that the topography designed with LIL is still present after multilayer deposition and that the formation of the multilayer system renders the surfaces hydrophilic, which is opposite to the hydrophobic nature of pristine nanostructures. The heterogenic system is applied to study the effect on adhesion and differentiation of human adipose-derived stem cells (hADSC). We show that hADSC spreading is increasing with cross-linking degree on flat multilayers, while it is decreasing on nanostructures modified with multilayers. In addition, early effects on signal transduction processes are seen. Finally, hADSC differentiation into chondrogenic and osteogenic lineages is superior to adipogenic lineages on nanostructures modified with multilayers. Hence, the presented system offers great potential to guide stem cell differentiation on surfaces of implants and tissue engineering scaffolds.
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Affiliation(s)
- Marcus S Niepel
- Martin Luther University Halle-Wittenberg, Institute of Pharmacy, Biomedical Materials Group, Interdisciplinary Centre of Materials Science, D-06099 Halle (Saale), Germany
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Ekambaram BK, Niepel MS, Fuhrmann B, Schmidt G, Groth T. Introduction of Laser Interference Lithography to Make Nanopatterned Surfaces for Fundamental Studies on Stem Cell Response. ACS Biomater Sci Eng 2018; 4:1820-1832. [DOI: 10.1021/acsbiomaterials.8b00060] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Esmaeilzadeh P, Köwitsch A, Liedmann A, Menzel M, Fuhrmann B, Schmidt G, Klehm J, Groth T. Stimuli-Responsive Multilayers Based on Thiolated Polysaccharides That Affect Fibroblast Cell Adhesion. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8507-8518. [PMID: 29470914 DOI: 10.1021/acsami.7b19022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Control of the biomaterial properties through stimuli-responsive polymeric platforms has become an essential technique in recent biomedical applications. A multilayer system of thiolated chitosan (t-Chi) and thiolated chondroitin sulfate (t-CS), consisting of five double layers ([t-Chi/t-CS]5), was fabricated here by applying a layer-by-layer coating strategy. To represent a novel class of chemically tunable nanostructures, the ability to cross-link pendant thiol groups was tested by a rise from pH 4 during layer formation to pH 9.3 and a more powerful chemical stimulus by using chloramine-T (ChT). Following both treatments, the resulting multilayers showed stimuli-dependent behavior, as demonstrated by their content of free thiols, wettability, surface charge, elastic modulus, roughness, topography, thickness, and binding of fibronectin. Studies with human dermal fibroblasts further demonstrated the favorable potential of the ChT-responsive multilayers as a cell-adhesive surface compared to pH-induced cross-linking. Because the [t-Chi/t-CS]5 multilayer system is responsive to stimuli such as the pH and redox environment, multilayer systems with disulfide bond formation may help to tailor their interaction with cells, film degradation, and controlled release of bioactive substances like growth factors in a stimuli-responsive manner useful in future wound healing and tissue engineering applications.
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Affiliation(s)
- Pegah Esmaeilzadeh
- Biomedical Materials Group, Institute of Pharmacy , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale) , Germany
- Interdisciplinary Center of Material Research , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale) , Germany
| | - Alexander Köwitsch
- Biomedical Materials Group, Institute of Pharmacy , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale) , Germany
| | - Andrea Liedmann
- Biomedical Materials Group, Institute of Pharmacy , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale) , Germany
| | - Matthias Menzel
- Fraunhofer Institute for Microstructure of Materials and Systems , Walter-Hülse-Strasse 1 , 06120 Halle (Saale) , Germany
| | - Bodo Fuhrmann
- Interdisciplinary Center of Material Research , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale) , Germany
- Institute of Physics , Martin Luther University Halle-Wittenberg , 06099 Halle (Saale) , Germany
| | - Georg Schmidt
- Interdisciplinary Center of Material Research , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale) , Germany
- Institute of Physics , Martin Luther University Halle-Wittenberg , 06099 Halle (Saale) , Germany
| | - Jessica Klehm
- Fraunhofer Institute for Microstructure of Materials and Systems , Walter-Hülse-Strasse 1 , 06120 Halle (Saale) , Germany
| | - Thomas Groth
- Biomedical Materials Group, Institute of Pharmacy , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale) , Germany
- Interdisciplinary Center of Material Research , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale) , Germany
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Lotito V, Zambelli T. Approaches to self-assembly of colloidal monolayers: A guide for nanotechnologists. Adv Colloid Interface Sci 2017; 246:217-274. [PMID: 28669390 DOI: 10.1016/j.cis.2017.04.003] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 04/04/2017] [Accepted: 04/05/2017] [Indexed: 01/08/2023]
Abstract
Self-assembly of quasi-spherical colloidal particles in two-dimensional (2D) arrangements is essential for a wide range of applications from optoelectronics to surface engineering, from chemical and biological sensing to light harvesting and environmental remediation. Several self-assembly approaches have flourished throughout the years, with specific features in terms of complexity of the implementation, sensitivity to process parameters, characteristics of the final colloidal assembly. Selecting the proper method for a given application amidst the vast literature in this field can be a challenging task. In this review, we present an extensive classification and comparison of the different techniques adopted for 2D self-assembly in order to provide useful guidelines for scientists approaching this field. After an overview of the main applications of 2D colloidal assemblies, we describe the main mechanisms underlying their formation and introduce the mathematical tools commonly used to analyse their final morphology. Subsequently, we examine in detail each class of self-assembly techniques, with an explanation of the physical processes intervening in crystallization and a thorough investigation of the technical peculiarities of the different practical implementations. We point out the specific characteristics of the set-ups and apparatuses developed for self-assembly in terms of complexity, requirements, reproducibility, robustness, sensitivity to process parameters and morphology of the final colloidal pattern. Such an analysis will help the reader to individuate more easily the approach more suitable for a given application and will draw the attention towards the importance of the details of each implementation for the final results.
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Guduru D, Niepel MS, Gonzalez-Garcia C, Salmeron-Sanchez M, Groth T. Comparative Study of Osteogenic Activity of Multilayers Made of Synthetic and Biogenic Polyelectrolytes. Macromol Biosci 2017; 17. [PMID: 28547877 DOI: 10.1002/mabi.201700078] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/19/2017] [Indexed: 11/05/2022]
Abstract
Polyelectrolyte multilayer (PEM) coatings on biomaterials are applied to tailor adhesion, growth, and function of cells on biomedical implants. Here, biogenic and synthetic polyelectrolytes (PEL) are used for layer-by-layer assembly to study the osteogenic activity of PEM with human osteosarcoma MG-63 cells in a comparative manner. Formation of PEM is achieved with biogenic PEL fibrinogen (FBG) and poly-l-lysine (PLL) as well as biotinylated chondroitin sulfate (BCS) and avidin (AVI), while poly(allylamine hydrochloride) (PAH) and polystyrene sulfonate (PSS) represent a fully synthetic PEM used as a reference system here. Surface plasmon resonance measurements show highest layer mass for FBG/PLL and similar for PSS/PAH and BCS/AVI systems, while water contact angle and zeta potential measurements indicate larger differences for PSS/PAH and FBG/PLL but not for BCS/AVI multilayers. All PEM systems support cell adhesion and growth and promote osteogenic differentiation as well. However, FBG/PLL layers are superior regarding MG-63 cell adhesion during short-term culture, while the BCS/AVI system increases alkaline phosphatase activity in long-term culture. Particularly, a multilayer system based on affinity interaction like BCS/AVI may be useful for controlled presentation of biotinylated growth factors to promote growth and differentiation of cells for biomedical applications.
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Affiliation(s)
- Deepak Guduru
- Biomedical Materials Group, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, 06099, Halle (Saale), Germany
| | - Marcus S Niepel
- Biomedical Materials Group, Institute of Pharmacy &, Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, 06099, Halle (Saale), Germany
| | - Cristina Gonzalez-Garcia
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, G12 8LT, UK
| | - Manuel Salmeron-Sanchez
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, G12 8LT, UK
| | - Thomas Groth
- Biomedical Materials Group, Institute of Pharmacy &, Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, 06099, Halle (Saale), Germany
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12
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Seo HR, Joo HJ, Kim DH, Cui LH, Choi SC, Kim JH, Cho SW, Lee KB, Lim DS. Nanopillar Surface Topology Promotes Cardiomyocyte Differentiation through Cofilin-Mediated Cytoskeleton Rearrangement. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16803-16812. [PMID: 28497946 DOI: 10.1021/acsami.7b01555] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanoscaled surface patterning is an emerging potential method of directing the fate of stem cells. We adopted nanoscaled pillar gradient patterned cell culture plates with three diameter gradients [280-360 (GP 280/360), 200-280 (GP 200/280), and 120-200 nm (GP 120/200)] and investigated their cell fate-modifying effect on multipotent fetal liver kinase 1-positive mesodermal precursor cells (Flk1+ MPCs) derived from embryonic stem cells. We observed increased cell proliferation and colony formation of the Flk1+ MPCs on the nanopattern plates. Interestingly, the 200-280 nm-sized (GP 200/280) pillar surface dramatically increased cardiomyocyte differentiation and expression of the early cardiac marker gene Mesp1. The gradient nanopattern surface-induced cardiomyocytes had cardiac sarcomeres with mature cardiac gene expression. We observed Vinculin and p-Cofilin-mediated cytoskeleton reorganization during this process. In summary, the gradient nanopattern surface with 200-280 nm-sized pillars enhanced cardiomyocyte differentiation in Flk1+ MPCs.
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Affiliation(s)
| | | | | | | | | | | | - Sung Woo Cho
- Division of Cardiology, Department of Internal Medicine, Inje University College of Medicine, Seoul Paik Hospital , 9 Mareunnae-ro, Jung-gu, Seoul 04551, Republic of Korea
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Niepel MS, Mano JF, Groth T. Effect of Polyelectrolyte Multilayers Assembled on Ordered Nanostructures on Adhesion of Human Fibroblasts. ACS APPLIED MATERIALS & INTERFACES 2016; 8:25142-51. [PMID: 27603547 DOI: 10.1021/acsami.6b09349] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Nanosphere lithography (NSL) and the layer-by-layer (LbL) technique are combined here for the first time to design a flexible system to achieve nanotopographical control of cell adhesion. NSL is used to generate regular patterns of tetrahedral gold nanodots of different size and distance. Besides the change in topography, LbL is used to generate a polyelectrolyte multilayer (PEM) system consisting of heparin (HEP) and poly(ethylene imine) (PEI) on top of the gold dots. The localized formation of PEM on gold dots is achieved by prior passivation of the surrounding silicon or glass surface. Properties of PEM are changed by adjusting the pH value of HEP solution to either acidic or alkaline values. Studies with human dermal fibroblasts (HDF) reveal that cells spread to a higher extent on PEM formed at pH 5.0 in dependence on the structure dimension. Further, filopodia formation is highly increased in cells on nanostructures exhibiting HEP as a terminal layer. The new system offers a great potential to guide stem cell differentiation in the future owing to its high degree of chemical and topographical heterogeneity.
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Affiliation(s)
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro , 3810-193 Aveiro, Portugal
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Hiraguchi Y, Kushiro K, Takai M. Formation of reversed nanoscale phase-separated structures using poly(2-methacryloyloxyethyl phosphorylcholine)-based amphiphilic block copolymers. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.06.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Wang CG, Wu XZ, Di D, Dong PT, Xiao R, Wang SQ. Orientation-dependent nanostructure arrays based on anisotropic silicon wet-etching for repeatable surface-enhanced Raman scattering. NANOSCALE 2016; 8:4672-4680. [PMID: 26853057 DOI: 10.1039/c5nr04750a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Repeatable fabrication of sensitive plasmonic substrates through a simple procedure has become a major challenge for SERS-based sensing and imaging. Herein, a new class of high-performance SERS substrates, including pyramid, ridged-hexagon, and quasi-triangle nanostructures, is successfully fabricated based on the nanosphere lithography technique and anisotropic wet etching. Using the wafer-scale Cr-hole array as the etching mask, cavity-templates of various configurations are fabricated by the orientation-dependent wet etching technique, from where the nanostructure arrays are finally peeled-off. The anisotropic wet etching on (100), (110), and (111) silicon wafers has been systematically studied at the nanoscale revealing the formation mechanism of these cavity-templates. The peeled-off nanostructure arrays provide high-density tips and/or gaps (about 2.5 × 10(7) mm(-2)) and thus facilitate the generation of "hot spots". The distribution of the electromagnetic field is visualized by the finite difference time domain calculation. And the calculation results are validated by SERS characterization. The SERS enhancement factors of these substrates are in the order of 10(6)-10(7), with the maximum enhancement factor of 1.32 × 10(7) yielded by the ridged-hexagon arrays. The proposed nanostructure arrays present excellent homogeneity and reproducibility (with the largest relative standard deviation of 16.43%) for the reason that the SERS-active substrates are peeled-off from an identical template. The cost-effective fabrication, high sensitivity, good homogeneity and well-performed reproducibility demonstrate that these orientation-dependent NSs are good candidates for SERS-based in vitro and in situ detection and biosensing.
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Affiliation(s)
- C G Wang
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha, Hunan Province 410073, P. R. China. and Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, P. R. China.
| | - X Z Wu
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha, Hunan Province 410073, P. R. China.
| | - D Di
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha, Hunan Province 410073, P. R. China. and Dingyuan Automotive Proving Ground, Nanjing, Jiangsu Province 210028, P.R. China
| | - P T Dong
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha, Hunan Province 410073, P. R. China.
| | - R Xiao
- Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, P. R. China.
| | - S Q Wang
- Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, P. R. China.
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16
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Zhao C, Xia L, Zhai D, Zhang N, Liu J, Fang B, Chang J, Lin K. Designing ordered micropatterned hydroxyapatite bioceramics to promote the growth and osteogenic differentiation of bone marrow stromal cells. J Mater Chem B 2015; 3:968-976. [DOI: 10.1039/c4tb01838a] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
HAp bioceramics with micropatterned surfaces significantly enhance cell responses.
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Affiliation(s)
- Cancan Zhao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Lunguo Xia
- Center of Craniofacial Orthodontics
- Department of Oral and Cranio-maxillofacial Science
- Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
- School of Medicine
- Shanghai 200011
| | - Dong Zhai
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Na Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Jiaqiang Liu
- Center of Craniofacial Orthodontics
- Department of Oral and Cranio-maxillofacial Science
- Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
- School of Medicine
- Shanghai 200011
| | - Bing Fang
- Center of Craniofacial Orthodontics
- Department of Oral and Cranio-maxillofacial Science
- Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
- School of Medicine
- Shanghai 200011
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Kaili Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
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