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Fu S, Li H, Wu Y, Wang J. Nano-/micro-scaled hydroxyapatite ceramic construction and the regulation of immune-associated osteogenic differentiation. J Biomed Mater Res A 2024; 112:193-209. [PMID: 37680167 DOI: 10.1002/jbm.a.37606] [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: 05/19/2023] [Revised: 08/04/2023] [Accepted: 08/24/2023] [Indexed: 09/09/2023]
Abstract
Hydroxyapatite (HA) bioceramic is a promising substitute for bone defects, and the surface properties are major factors that influence bioactivity and osteoinductivity. In this study, two kinds of HA bioceramics with nanoscale (n-HA) and microscale (m-HA) surface topography were designed to mimic the natural bone, thus enhancing the stimulation of osteogenic differentiation and revealing the potential mechanism. Compared to m-HA, n-HA owned a larger surface roughness, a stronger wettability, and reduced hardness and indentation modulus. Based on these properties, n-HA could maintain the conformation of vitronectin better than m-HA, which may contribute to higher cellular activities and a stronger promotion of osteogenic differentiation of mesenchymal stem cells (MSCs). Further RNA sequencing analysis compared the molecular expression between n-HA and m-HA. Six hundred twenty-seven differentially expressed genes were identified in MSCs, and 17 upregulated genes and 610 downregulated genes were included when n-HA compared to m-HA. The GO cluster analysis and enriched Kyoto encyclopedia of genes and genome signaling pathways revealed a close correlation with the immune process in both upregulated (chemokine signaling pathway and cytokine-cytokine receptor interaction) and downregulated pathways (osteoclasts differentiation). It suggested that the nanoscale surface topography of HA enhanced the osteoinductivity of MSCs and could not be separated from its regulation of immune function and the retention of adsorbed protein conformation.
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Affiliation(s)
- Shijia Fu
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Huishan Li
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Yue Wu
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Jing Wang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
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2
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Bhatt M, Shende P. Surface patterning techniques for proteins on nano- and micro-systems: a modulated aspect in hierarchical structures. J Mater Chem B 2022; 10:1176-1195. [PMID: 35119060 DOI: 10.1039/d1tb02455h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The surface patterning of protein using fabrication or the external functionalization of structures demonstrates various applications in the biomedical field for bioengineering, biosensing and antifouling. This review article offers an outline of the existing advances in protein patterning technology with a special emphasis on the current physical and physicochemical methods, including stencil patterning, trap- and droplet-based microfluidics, and chemical modification of surfaces via photolithography, microcontact printing and scanning probe nanolithography. Different approaches are applied for the biological studies of recent trends for single-protein patterning technology, such as robotic printing, stencil printing and colloidal lithography, wherein the concepts of physical confinement, electrostatic and capillary forces, as well as dielectrophoretics, are summarised to understand the design approaches. Photochemical alterations with diazirine, nitrobenzyl and aryl azide functional groups for the implication of modified substrates, such as self-assembled monolayers functionalized with amino silanes, organosilanes and alkanethiols on gold surfaces, as well as topographical effects of patterning techniques for protein functionalization and orientation, are discussed. Analytical methods for the evaluation of protein functionality are also mentioned. Regarding their selectivity, protein pattering methods will be readily used to fabricate modified surfaces and target-specific delivery systems for the transportation of macromolecules such as streptavidin, and albumin. Future applications of patterning techniques include high-throughput screening, the evaluation of intracellular interactions, accurate screening and personalized treatments.
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Affiliation(s)
- Maitri Bhatt
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta Road, Vile Parle (W), Mumbai, India.
| | - Pravin Shende
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta Road, Vile Parle (W), Mumbai, India.
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3
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Study on the biological behaviors of CaP coatings with different morphology on carbon/carbon composites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112391. [PMID: 34579910 DOI: 10.1016/j.msec.2021.112391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 08/16/2021] [Accepted: 08/23/2021] [Indexed: 11/20/2022]
Abstract
In this work, we designed and fabricated a CaP composite bio-coating with different surface morphologies on a carbon/carbon (C/C) matrix by means of hybrid supersonic atmospheric plasma spraying (SAPS) and microwave-hydrothermal (MH) technologies. We found that all studied coating materials can support mesenchymal stem cells (MSCs) proliferation with prolonged culture time (3 days and 7 days) in vitro. Furthermore, according to the (Confocal Laser Scanning Microscopy) CLSM results, the MSCs also showed good attachment and different spreading morphologies on SAPS/MH coatings. As such, C/C matrix, the MH treated coatings with needle-like and rod-like microstructures were chosen for further in vivo investigation. Considering the good bonding between host tissue and the studied materials, the in vivo morphology studies confirmed a good histocompatibility for all coating samples, as well as a decreasing expression for inflammatory factors in a physiological environment. The histological results around the implants indicated different cell aggregation and vascularization ability in the local micro-environment. In particular, based on the reduction of the C/C initial surface flaws (e.g. hydrophobicity, biological inertia and easily producing carbon fragments or particles), the MH treated coating with rod-like surface morphology with a specific surface area (~2.33 m2/g) and roughness (~13.80 μm), showed excellent performance as a promising implant in live tissue.
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4
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Regulating the uptake of poly(N-(2-hydroxypropyl) methacrylamide)-based micelles in cells cultured on micropatterned surfaces. Biointerphases 2021; 16:041002. [PMID: 34261325 DOI: 10.1116/6.0001012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cellular uptake of nanoparticles plays a crucial role in cell-targeted biomedical applications. Despite abundant studies trying to understand the interaction between nanoparticles and cells, the influence of cell geometry traits such as cell spreading area and cell shape on the uptake of nanoparticles remains unclear. In this study, poly(vinyl alcohol) is micropatterned on polystyrene cell culture plates using ultraviolet photolithography to control the spreading area and shape of individual cells. The effects of these factors on the cellular uptake of poly(N-(2-hydroxypropyl)methacrylamide)-based micelles were investigated at a single-cell level. Human carcinoma MCF-7 and A549 cells as well as normal Hs-27 and MRC-5 fibroblasts were cultured on micropatterned surfaces. MCF-7 and A549 cells, both with larger sizes, had a higher total micelle uptake. However, the uptake of Hs-27 and MRC-5 cells decreased with increasing spreading area. In terms of cell shapes, MCF-7 and A549 cells with round shapes showed a higher micelle uptake, while those with a square shape had a lower cellular uptake. On the other hand, Hs-27 and MRC-5 cells showed opposite behaviors. The results indicate that the geometry of cells can influence the nanoparticle uptake and may shed light on the design of functional nanoparticles.
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5
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Habibullah G, Viktorova J, Ruml T. Current Strategies for Noble Metal Nanoparticle Synthesis. NANOSCALE RESEARCH LETTERS 2021; 16:47. [PMID: 33721118 PMCID: PMC7960878 DOI: 10.1186/s11671-021-03480-8] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 01/11/2021] [Indexed: 05/09/2023]
Abstract
Noble metals have played an integral part in human history for centuries; however, their integration with recent advances in nanotechnology and material sciences have provided new research opportunities in both academia and industry, which has resulted in a new array of advanced applications, including medical ones. Noble metal nanoparticles (NMNPs) have been of great importance in the field of biomedicine over the past few decades due to their importance in personalized healthcare and diagnostics. In particular, platinum, gold and silver nanoparticles have achieved the most dominant spot in the list, thanks to a very diverse range of industrial applications, including biomedical ones such as antimicrobial and antiviral agents, diagnostics, drug carriers and imaging probes. In particular, their superior resistance to extreme conditions of corrosion and oxidation is highly appreciated. Notably, in the past two decades there has been a tremendous advancement in the development of new strategies of more cost-effective and robust NMNP synthesis methods that provide materials with highly tunable physicochemical, optical and thermal properties, and biochemical functionalities. As a result, new advanced hybrid NMNPs with polymer, graphene, carbon nanotubes, quantum dots and core-shell systems have been developed with even more enhanced physicochemical characteristics that has led to exceptional diagnostic and therapeutic applications. In this review, we aim to summarize current advances in the synthesis of NMNPs (Au, Ag and Pt).
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Affiliation(s)
- Giyaullah Habibullah
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague, Czech Republic
| | - Jitka Viktorova
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague, Czech Republic.
| | - Tomas Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague, Czech Republic
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6
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Biofabrication of aligned structures that guide cell orientation and applications in tissue engineering. Biodes Manuf 2021. [DOI: 10.1007/s42242-020-00104-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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7
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Lee SW, Phillips KS, Gu H, Kazemzadeh-Narbat M, Ren D. How microbes read the map: Effects of implant topography on bacterial adhesion and biofilm formation. Biomaterials 2020; 268:120595. [PMID: 33360301 DOI: 10.1016/j.biomaterials.2020.120595] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 11/24/2020] [Accepted: 12/06/2020] [Indexed: 12/19/2022]
Abstract
Microbes have remarkable capabilities to attach to the surface of implanted medical devices and form biofilms that adversely impact device function and increase the risk of multidrug-resistant infections. The physicochemical properties of biomaterials have long been known to play an important role in biofilm formation. More recently, a series of discoveries in the natural world have stimulated great interest in the use of 3D surface topography to engineer antifouling materials that resist bacterial colonization. There is also increasing evidence that some medical device surface topographies, such as those designed for tissue integration, may unintentionally promote microbial attachment. Despite a number of reviews on surface topography and biofilm control, there is a missing link between how bacteria sense and respond to 3D surface topographies and the rational design of antifouling materials. Motivated by this gap, we present a review of how bacteria interact with surface topographies, and what can be learned from current laboratory studies of microbial adhesion and biofilm formation on specific topographic features and medical devices. We also address specific biocompatibility considerations and discuss how to improve the assessment of the anti-biofilm performance of topographic surfaces. We conclude that 3D surface topography, whether intended or unintended, is an important consideration in the rational design of safe medical devices. Future research on next-generation smart antifouling materials could benefit from a greater focus on translation to real-world applications.
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Affiliation(s)
- Sang Won Lee
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY, 13244, United States; Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY, 13244, United States
| | - K Scott Phillips
- United States Food and Drug Administration, Office of Medical Products and Tobacco, Center for Devices and Radiological Health, Office of Science and Engineering Laboratories, Division of Biology, Chemistry, and Materials Science, Silver Spring, MD, 20993, United States.
| | - Huan Gu
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY, 13244, United States; Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY, 13244, United States
| | - Mehdi Kazemzadeh-Narbat
- United States Food and Drug Administration, Office of Medical Products and Tobacco, Center for Devices and Radiological Health, Office of Product Evaluation and Quality, Office of Health Technology 6, Silver Spring, MD, 20993, United States; Musculoskeletal Clinical Regulatory Advisers (MCRA), Washington DC, 20001, United States
| | - Dacheng Ren
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY, 13244, United States; Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY, 13244, United States; Department of Civil and Environmental Engineering, Syracuse University, Syracuse, NY, 13244, United States; Department of Biology, Syracuse University, Syracuse, NY, 13244, United States.
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8
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Xiao D, Zhang J, Zhang C, Barbieri D, Yuan H, Moroni L, Feng G. The role of calcium phosphate surface structure in osteogenesis and the mechanisms involved. Acta Biomater 2020; 106:22-33. [PMID: 31926336 DOI: 10.1016/j.actbio.2019.12.034] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 12/11/2019] [Accepted: 12/30/2019] [Indexed: 02/07/2023]
Abstract
Calcium phosphate (CaP) ceramics have been widely used for bone regeneration because of their ability to induce osteogenesis. Surface properties, including chemical composition and surface structure, are known to play a crucial role in osteoconduction and osteoinduction. This review systematically analyzes the effects of surface properties, in particular the surface structure, of CaP scaffolds on cell behavior and new bone formation. We also summarize the possible signaling pathways involved in the osteogenic differentiation of bone-related cells when cultured on surfaces with various structures in vitro. The significant immune response initiated by surface structure involved in osteogenic differentiation of cells is also discussed in this review. Taken together, the new biological principle for advanced biomaterials is not only to directly stimulate osteogenic differentiation of bone-related cells but also to modulate the immune response in vivo. Although the reaction mechanism responsible for bone formation induced by CaP surface structure is not clear yet, the insights on surface structure-mediated osteogenic differentiation and osteoimmunomodulation could aid the optimization of CaP-based biomaterials for bone regeneration. STATEMENT OF SIGNIFICANCE: CaP ceramics have similar inorganic composition with natural bone, which have been widely used for bone tissue scaffolds. CaP themselves are not osteoinductive; however, osteoinductive properties could be introduced to CaP materials by surface engineering. This paper systematically summarizes the effects of surface properties, especially surface structure, of CaP scaffolds on bone formation. Additionally, increasing evidence has proved that the bone healing process is not only affected by the osteogenic differentiation of bone-related cells, but also relevant to the the cooperation of immune system. Thus, we further review the possible signaling pathways involved in the osteogenic differentiation and immune response of cells cultured on scaffold surface. These insights into surface structure-mediated osteogenic differentiation and osteoimmunomodulated-based strategy could aid the optimization of CaP-based biomaterials.
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9
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Ghosh S, Biswas A, Roy B, Banerjee A. Self-assembly and complex manipulation of colloidal mesoscopic particles by active thermocapillary stress. SOFT MATTER 2019; 15:4703-4713. [PMID: 31119243 PMCID: PMC6582761 DOI: 10.1039/c9sm00721k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 05/16/2019] [Indexed: 06/09/2023]
Abstract
We demonstrate that the active thermocapillary stresses induced by multiple microbubbles offer simple routes to directed self-assembly and complex but controllable micromanipulation of mesoscopic colloidal particles embedded in a liquid. The microbubbles are nucleated on a liquid-glass interface using optical tweezers. The flow around a single bubble causes self-assembly of the particles in rings at the bubble-base, while an asymmetric temperature profile generated across the bubble interface breaks the azimuthal symmetry of the flow, and induces simultaneous accumulation and repulsion of particles at different axial planes with respect to the bubble. The flow due to two adjacent bubbles leads to more diverse effects including the sorting of particles, and to local vorticity that causes radial and axial rotation of the particles - the latter being obtained for the first time using optical tweezers. The sorting is enabled by nucleating the bubbles on spatially discrete temperature profiles, while the vorticity is generated by nucleating them in the presence of a temperature gradient which once again causes a strong symmetry-breaking in the azimuthal flow. The flow profiles obtained in the experiments are explained by analytical solutions or qualitative explanations of the associated thermocapillary problem employing the Stokes and heat equations.
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Affiliation(s)
- Subhrokoli Ghosh
- Department of Physical Sciences
, Indian Institute of Science Education and Research, Kolkata
,
Mohanpur
, 741246
, India
.
| | - Aritra Biswas
- Department of Physical Sciences
, Indian Institute of Science Education and Research, Kolkata
,
Mohanpur
, 741246
, India
.
| | - Basudev Roy
- Dept of Physics
, Indian Institute of Technology Madras
,
600036
, India
| | - Ayan Banerjee
- Department of Physical Sciences
, Indian Institute of Science Education and Research, Kolkata
,
Mohanpur
, 741246
, India
.
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10
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Machairioti F, Petrou P, Oh HT, Lee JK, Kakabakos S, Argitis P, Chatzichristidi M. Bio-orthogonal fluorinated resist for biomolecules patterning applications. Colloids Surf B Biointerfaces 2019; 178:208-213. [PMID: 30856590 DOI: 10.1016/j.colsurfb.2019.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 02/20/2019] [Accepted: 03/03/2019] [Indexed: 12/17/2022]
Abstract
The patterning of organic materials on solid substrate surfaces has been demonstrated by several methods, such as photolithography, soft lithography, imprint lithography and ink-jet printing. Fluorinated polymers and solvents provide attractive material systems to develop new patterning approaches, as they are chemically orthogonal to non-fluorinated organic molecules, allowing their efficient incorporation in different devices and systems. Moreover, fluorinated polymers are soluble in hydrofluoroether solvents, benign to biomolecules, and can be properly engineered to enable efficient photolithographic patterning. In this work, we report the development of a new photolithographic process for patterning biomolecules on any kind of surfaces either by physical adsorption or covalent bonding. The photoresist is based on a fluorinated material and hydrofluoroether solvents that have minimum interactions with biomolecules and thus they can be characterized as orthogonal to the biomolecules (bio-orthogonal). In both cases, the creation of patterns with dimensions down to 2 μm was achieved. The implementation of the developed photolithographic procedure for the creation of a multi-protein microarray is demonstrated.
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Affiliation(s)
- Fotini Machairioti
- Department of Chemistry, National and Kapodistrian University of Athens, Athens, Greece; Immunoassay/Immunosensors Lab, INRaSTES, NCSR Demokritos, Aghia Paraskevi, Greece
| | - Panagiota Petrou
- Immunoassay/Immunosensors Lab, INRaSTES, NCSR Demokritos, Aghia Paraskevi, Greece
| | - Hyun-Taek Oh
- Department of Polymer Science & Engineering, Inha University, Incheon, 22212, South Korea
| | - Jin-Kyun Lee
- Department of Polymer Science & Engineering, Inha University, Incheon, 22212, South Korea
| | - Sotirios Kakabakos
- Immunoassay/Immunosensors Lab, INRaSTES, NCSR Demokritos, Aghia Paraskevi, Greece
| | - Panagiotis Argitis
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Aghia Paraskevi, Greece
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11
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Piya R, Zhu Y, Soeriyadi AH, Silva SM, Reece PJ, Gooding JJ. Micropatterning of porous silicon Bragg reflectors with poly(ethylene glycol) to fabricate cell microarrays: Towards single cell sensing. Biosens Bioelectron 2019; 127:229-235. [DOI: 10.1016/j.bios.2018.12.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 11/21/2018] [Accepted: 12/02/2018] [Indexed: 12/23/2022]
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12
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Abstract
The interactions of adherent cells with their insoluble extracellular matrices are complex and challenging to study in the laboratory. Approaches from interface science have been important to preparing models of the biological matrix wherein discreet ligands are immobilized and interact with cellular receptors. A recent theme has been to develop dynamic substrates, where the activities of immobilized ligands can be modulated in real-time during cell culture. This short opinion reviews the strategies to manipulate ligand activity, highlights recent work that has advanced the field and discusses the applications that have been enabled. This work suggests that dynamic substrates will continue to find important uses in basic and applied biointerfaces.
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Affiliation(s)
- Pradeep Bugga
- Department of Chemistry, Northwestern University, Evanston, Illinois, 60208 United States
| | - Milan Mrksich
- Department of Chemistry, Northwestern University, Evanston, Illinois, 60208 United States
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13
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Woldetsadik AD, Sharma SK, Khapli S, Jagannathan R, Magzoub M. Hierarchically Porous Calcium Carbonate Scaffolds for Bone Tissue Engineering. ACS Biomater Sci Eng 2017; 3:2457-2469. [PMID: 33445303 DOI: 10.1021/acsbiomaterials.7b00301] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Hierarchically porous CaCO3 scaffolds comprised of micro- (diameter = 2.0 ± 0.3 μm) and nano-sized (diameter = 50.4 ± 14.4 nm) pores were fabricated on silicon substrates using a supercritical CO2-based process. Differentiated human THP-1 monocytes exposed to the CaCO3 scaffolds produced negligible levels of the inflammatory cytokine tumor necrosis factor-alpha (TNF-α), confirming the lack of immunogenicity of the scaffolds. Extracellular matrix (ECM) proteins, vitronectin and fibronectin, displayed enhanced adsorption to the scaffolds compared to the silicon controls. ECM protein-coated CaCO3 scaffolds promoted adhesion, growth, and proliferation of osteoblast MC3T3 cells. MC3T3 cells grown on the CaCO3 scaffolds produced substantially higher levels of transforming growth factor-beta and vascular endothelial growth factor A, which regulate osteoblast differentiation, and exhibited markedly increased alkaline phosphatase activity, a marker of early osteoblast differentiation, compared to controls. Moreover, the CaCO3 scaffolds stimulated matrix mineralization (calcium deposition), an end point of advanced osteoblast differentiation and an important biomarker for bone tissue formation. Taken together, these results demonstrate the significant potential of the hierarchically porous CaCO3 scaffolds for bone tissue engineering applications.
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Affiliation(s)
- Abiy D Woldetsadik
- Biology Program, Division of Science, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Sudhir K Sharma
- Nano and Bio Materials Laboratory, Engineering Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Sachin Khapli
- Nano and Bio Materials Laboratory, Engineering Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Ramesh Jagannathan
- Nano and Bio Materials Laboratory, Engineering Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Mazin Magzoub
- Biology Program, Division of Science, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
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14
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Komiyama M, Yoshimoto K, Sisido M, Ariga K. Chemistry Can Make Strict and Fuzzy Controls for Bio-Systems: DNA Nanoarchitectonics and Cell-Macromolecular Nanoarchitectonics. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170156] [Citation(s) in RCA: 238] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Makoto Komiyama
- World Premier International (WPI) Research Centre for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044
- Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8577
| | - Keitaro Yoshimoto
- Department of Life Sciences, Graduate School of Arts and Science, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902
| | - Masahiko Sisido
- Professor Emeritus, Research Core for Interdisciplinary Sciences, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530
| | - Katsuhiko Ariga
- World Premier International (WPI) Research Centre for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-0827
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15
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Ren F, Yesildag C, Zhang Z, Lensen MC. Surface Patterning of Gold Nanoparticles on PEG-Based Hydrogels to Control Cell Adhesion. Polymers (Basel) 2017; 9:E154. [PMID: 30970833 PMCID: PMC6432185 DOI: 10.3390/polym9050154] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 04/18/2017] [Accepted: 04/21/2017] [Indexed: 11/16/2022] Open
Abstract
We report on a versatile and easy approach to micro-pattern gold nanoparticles (Au NPs) on 8-arm poly(ethylene glycol)-vinyl sulfone thiol (8PEG-VS-SH) hydrogels, and the application of these patterned Au NPs stripes in controlling cell adhesion. Firstly, the Au NPs were patterned on silicon wafers, and then they were transferred onto reactive, multifunctional 8PEG-VS-SH hydrogels. The patterned, micrometer-sized Au NPs stripes with variable spacings ranging from 20 μm to 50 μm were created by our recently developed micro-contact deprinting method. For this micro-contact deprinting approach, four different PEG-based stamp materials have been tested and it was found that the triblock copolymer PEG-PPG-PEG-(3BC) stamp established the best transfer efficiency and has been used in the ongoing work. After the successful creation of micro-patterns of Au NPs stripes on silicon, the patterns can be transferred conveniently and accurately to 8PEG-VS-SH hydrogel films. Subsequently these Au NPs patterns on 8PEG-VS-SH hydrogels have been investigated in cell culture with murine fibroblasts (L-929). The cells have been observed to adhere to and spread on those nano-patterned micro-lines in a remarkably selective and ordered manner.
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Affiliation(s)
- Fang Ren
- Nanopatterned Biomaterials, Technische Universität Berlin, Sekr. TC 1, Strasse des 17. Juni 124, Berlin 10623, Germany.
| | - Cigdem Yesildag
- Nanopatterned Biomaterials, Technische Universität Berlin, Sekr. TC 1, Strasse des 17. Juni 124, Berlin 10623, Germany.
| | - Zhenfang Zhang
- Nanopatterned Biomaterials, Technische Universität Berlin, Sekr. TC 1, Strasse des 17. Juni 124, Berlin 10623, Germany.
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Marga C Lensen
- Nanopatterned Biomaterials, Technische Universität Berlin, Sekr. TC 1, Strasse des 17. Juni 124, Berlin 10623, Germany.
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16
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Fazal Z, Pelowitz J, Johnson PE, Harper JC, Brinker CJ, Jakobsson E. Three-Dimensional Encapsulation of Saccharomyces cerevisiae in Silicate Matrices Creates Distinct Metabolic States as Revealed by Gene Chip Analysis. ACS NANO 2017; 11:3560-3575. [PMID: 28287261 DOI: 10.1021/acsnano.6b06385] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In order to design hybrid cellular/synthetic devices such as sensors and vaccines, it is important to understand how the metabolic state of living cells changes upon physical confinement within three-dimensional (3D) matrices. We analyze the gene expression patterns of stationary phase Saccharomyces cerevisiae (S. cerevisiae) cells encapsulated within three distinct nanostructured silica matrices and relate those patterns to known naturally occurring metabolic states. Silica encapsulation methods employed were lipid-templated mesophase silica thin films formed by cell-directed assembly (CDA), lipid-templated mesophase silica particles formed by spray drying (SD), and glycerol-doped silica gel monoliths prepared from an aqueous silicate (AqS+g) precursor solution. It was found that the cells for all three-encapsulated methods enter quiescent states characteristic of response to stress, albeit to different degrees and with differences in detail. By the measure of enrichment of stress-related gene ontology categories, we find that the AqS+g encapsulation is more amenable to the cells than CDA and SD encapsulation. We hypothesize that this differential response in the AqS+g encapsulation is related to four properties of the encapsulating gel: (1) oxygen permeability, (2) relative softness of the material, (3) development of a protective sheath around individual cells (visible in TEM micrographs vide infra), and (4) the presence of glycerol in the gel, which has been previously noted to serve as a protectant for encapsulated cells and can serve as the sole carbon source for S. cerevisiae under aerobic conditions. This work represents a combination of experiment and analysis aimed at the design and development of 3D encapsulation procedures to induce, and perhaps control, well-defined physiological behaviors.
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Affiliation(s)
- Zeeshan Fazal
- Department of Biosciences, COMSATS Institute of Information Technology , Park Road, Tarlai Kalan, Islamabad 45550, Pakistan
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Ilovitsh A, Polak P, Zalevsky Z, Shefi O. Selective inactivation of enzymes conjugated to nanoparticles using tuned laser illumination. Cytometry A 2016; 91:767-774. [DOI: 10.1002/cyto.a.23005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 05/30/2016] [Accepted: 10/05/2016] [Indexed: 12/28/2022]
Affiliation(s)
- Asaf Ilovitsh
- Faculty of Engineering; Bar Ilan University; Ramat-Gan 5290002 Israel
- The Bar-Ilan Institute of Nanotechnologies & Advanced Materials, Bar Ilan University; Ramat-Gan 5290002 Israel
| | - Pazit Polak
- Faculty of Engineering; Bar Ilan University; Ramat-Gan 5290002 Israel
- The Bar-Ilan Institute of Nanotechnologies & Advanced Materials, Bar Ilan University; Ramat-Gan 5290002 Israel
| | - Zeev Zalevsky
- Faculty of Engineering; Bar Ilan University; Ramat-Gan 5290002 Israel
- The Bar-Ilan Institute of Nanotechnologies & Advanced Materials, Bar Ilan University; Ramat-Gan 5290002 Israel
| | - Orit Shefi
- Faculty of Engineering; Bar Ilan University; Ramat-Gan 5290002 Israel
- The Bar-Ilan Institute of Nanotechnologies & Advanced Materials, Bar Ilan University; Ramat-Gan 5290002 Israel
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Credi C, De Marco C, Molena E, Nava MM, Raimondi MT, Levi M, Turri S. Direct photo-patterning of hyaluronic acid baits onto a fouling-release perfluoropolyether surface for selective cancer cell capture and immobilization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:414-22. [DOI: 10.1016/j.msec.2015.12.063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 10/14/2015] [Accepted: 12/28/2015] [Indexed: 12/24/2022]
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Brindha J, Privita Edwina RA, Rajesh P, P.Rani. Influence of rheological properties of protein bio-inks on printability: a simulation and validation study. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.matpr.2016.10.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gopinathan J, Quigley AF, Bhattacharyya A, Padhye R, Kapsa RMI, Nayak R, Shanks RA, Houshyar S. Preparation, characterisation, andin vitroevaluation of electrically conducting poly(ɛ-caprolactone)-based nanocomposite scaffolds using PC12 cells. J Biomed Mater Res A 2015; 104:853-65. [DOI: 10.1002/jbm.a.35620] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 11/13/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Janarthanan Gopinathan
- Advanced Textile and Polymer Research Lab, PSG Institute of Advanced Studies; Coimbatore India
| | - Anita F. Quigley
- Centre for Clinical Neurosciences and Neurological Research, St. Vincent's Hospital; Victoria 3065 Australia
- ARC Centre of Excellence for Electromaterials Science; Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong; New South Wales 2500 Australia
- Department of Medicine; University of Melbourne; 3065 Australia
| | - Amitava Bhattacharyya
- Advanced Textile and Polymer Research Lab, PSG Institute of Advanced Studies; Coimbatore India
| | - Rajiv Padhye
- College of Design and Social Context; Centre for Advanced Materials and Performance Textiles, School of Fashion and Textiles, RMIT University; Melbourne 3056 Australia
| | - Robert M. I. Kapsa
- Centre for Clinical Neurosciences and Neurological Research, St. Vincent's Hospital; Victoria 3065 Australia
- ARC Centre of Excellence for Electromaterials Science; Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong; New South Wales 2500 Australia
- Department of Medicine; University of Melbourne; 3065 Australia
| | - Rajkishore Nayak
- College of Design and Social Context; Centre for Advanced Materials and Performance Textiles, School of Fashion and Textiles, RMIT University; Melbourne 3056 Australia
| | - Robert A. Shanks
- College of Science, Engineering and Health, School of Applied Sciences, RMIT University; Melbourne 3000 Australia
| | - Shadi Houshyar
- College of Design and Social Context; Centre for Advanced Materials and Performance Textiles, School of Fashion and Textiles, RMIT University; Melbourne 3056 Australia
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Stochastic model explains formation of cell arrays on H/O-diamond patterns. Biointerphases 2015; 10:041006. [PMID: 26559048 DOI: 10.1116/1.4934794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cell migration plays an important role in many biological systems. A relatively simple stochastic model is developed and used to describe cell behavior on chemically patterned substrates. The model is based on three parameters: the speed of cell movement (own and external), the probability of cell adhesion, and the probability of cell division on the substrate. The model is calibrated and validated by experimental data obtained on hydrogen- and oxygen-terminated patterns on diamond. Thereby, the simulations reveal that: (1) the difference in the cell movement speed on these surfaces (about 1.5×) is the key factor behind the formation of cell arrays on the patterns, (2) this difference is provided by the presence of fetal bovine serum (validated by experiments), and (3) the directional cell flow promotes the array formation. The model also predicts that the array formation requires mean distance of cell travel at least 10% of intended stripe width. The model is generally applicable for biosensors using diverse cells, materials, and structures.
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Savage TJ, Dunphy DR, Harbaugh S, Kelley-Loughnane N, Harper JC, Brinker CJ. Influence of Silica Matrix Composition and Functional Component Additives on the Bioactivity and Viability of Encapsulated Living Cells. ACS Biomater Sci Eng 2015; 1:1231-1238. [DOI: 10.1021/acsbiomaterials.5b00261] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Travis J. Savage
- Chemical & Biological Engineering, University of New Mexico, Albuquerque, New Mexico 87106, United States
| | - Darren R. Dunphy
- Chemical & Biological Engineering, University of New Mexico, Albuquerque, New Mexico 87106, United States
| | - Svetlana Harbaugh
- Air
Force Research Laboratory, Human Effectiveness Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
| | - Nancy Kelley-Loughnane
- Air
Force Research Laboratory, Human Effectiveness Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
| | | | - C. Jeffrey Brinker
- Chemical & Biological Engineering, University of New Mexico, Albuquerque, New Mexico 87106, United States
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Tabatabaei M, Wallace GQ, Caetano FA, Gillies ER, Ferguson SSG, Lagugné-Labarthet F. Controlled positioning of analytes and cells on a plasmonic platform for glycan sensing using surface enhanced Raman spectroscopy. Chem Sci 2015; 7:575-582. [PMID: 28791107 PMCID: PMC5519955 DOI: 10.1039/c5sc03332b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 10/13/2015] [Indexed: 12/22/2022] Open
Abstract
Controlled analyte and cell positioning is enabled on a plasmonic platform with patterned fluorocarbon polymer thin films for SERS-based glycan sensing.
The rise of molecular plasmonics and its application to ultrasensitive spectroscopic measurements has been enabled by the rational design and fabrication of a variety of metallic nanostructures. Advanced nano and microfabrication methods are key to the development of such structures, allowing one to tailor optical fields at the sub-wavelength scale, thereby optimizing excitation conditions for ultrasensitive detection. In this work, the control of both analyte and cell positioning on a plasmonic platform is enabled using nanofabrication methods involving patterning of fluorocarbon (FC) polymer (C4F8) thin films on a plasmonic platform fabricated by nanosphere lithography (NSL). This provides the possibility to probe biomolecules of interest in the vicinity of cells using plasmon-mediated surface enhanced spectroscopies. In this context, we demonstrate the surface enhanced biosensing of glycan expression in different cell lines by surface enhanced Raman spectroscopy (SERS) on these plasmonic platforms functionalized with 4-mercaptophenylboronic acid (4-MPBA) as the Raman reporter. These cell lines include human embryonic kidney (HEK 293), C2C12 mouse myoblasts, and HeLa (Henrietta Lacks) cervical cancer cells. A distinct glycan expression is observed for cancer cells compared to other cell lines by confocal SERS mapping. This suggests the potential application of these versatile SERS platforms for differentiating cancerous from non-cancerous cells.
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Affiliation(s)
- Mohammadali Tabatabaei
- Department of Chemistry and Center for Advanced Materials and Biomaterials , University of Western Ontario , London , ON , Canada N6A 5B7 . ; ; Tel: +1 519 661 2111 ext. 81006
| | - Gregory Q Wallace
- Department of Chemistry and Center for Advanced Materials and Biomaterials , University of Western Ontario , London , ON , Canada N6A 5B7 . ; ; Tel: +1 519 661 2111 ext. 81006
| | - Fabiana A Caetano
- J. Allyn Taylor Centre for Cell Biology , Robarts Research Institute , Department of Physiology and Pharmacology , University of Western Ontario , 100 Perth Drive St. , London , ON , Canada N6A 5K8
| | - Elizabeth R Gillies
- Department of Chemistry and Center for Advanced Materials and Biomaterials , University of Western Ontario , London , ON , Canada N6A 5B7 . ; ; Tel: +1 519 661 2111 ext. 81006.,Department of Chemical and Biochemical Engineering , The University of Western Ontario , 1151 Richmond Street , London , Ontario , Canada N6A 5B9
| | - Stephen S G Ferguson
- J. Allyn Taylor Centre for Cell Biology , Robarts Research Institute , Department of Physiology and Pharmacology , University of Western Ontario , 100 Perth Drive St. , London , ON , Canada N6A 5K8
| | - François Lagugné-Labarthet
- Department of Chemistry and Center for Advanced Materials and Biomaterials , University of Western Ontario , London , ON , Canada N6A 5B7 . ; ; Tel: +1 519 661 2111 ext. 81006
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Koyama S, Tsubouchi T, Usui K, Uematsu K, Tame A, Nogi Y, Ohta Y, Hatada Y, Kato C, Miwa T, Toyofuku T, Nagahama T, Konishi M, Nagano Y, Abe F. Involvement of flocculin in negative potential-applied ITO electrode adhesion of yeast cells. FEMS Yeast Res 2015; 15:fov064. [PMID: 26187908 PMCID: PMC4629795 DOI: 10.1093/femsyr/fov064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2015] [Indexed: 12/13/2022] Open
Abstract
The purpose of this study was to develop novel methods for attachment and cultivation of specifically positioned single yeast cells on a microelectrode surface with the application of a weak electrical potential. Saccharomyces cerevisiae diploid strains attached to an indium tin oxide/glass (ITO) electrode to which a negative potential between −0.2 and −0.4 V vs. Ag/AgCl was applied, while they did not adhere to a gallium-doped zinc oxide/glass electrode surface. The yeast cells attached to the negative potential-applied ITO electrodes showed normal cell proliferation. We found that the flocculin FLO10 gene-disrupted diploid BY4743 mutant strain (flo10Δ /flo10Δ) almost completely lost the ability to adhere to the negative potential-applied ITO electrode. Our results indicate that the mechanisms of diploid BY4743 S. cerevisiae adhesion involve interaction between the negative potential-applied ITO electrode and the Flo10 protein on the cell wall surface. A combination of micropatterning techniques of living single yeast cell on the ITO electrode and omics technologies holds potential of novel, highly parallelized, microchip-based single-cell analysis that will contribute to new screening concepts and applications. Yeast Saccharomyces cerevisiae were selectively attached on the negative potential-applied indium tin oxide/glass electrode. Mechanisms of the yeast cell attachment involve Flocculin Flo10 proteins.
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Affiliation(s)
- Sumihiro Koyama
- Department of Marine Biodiversity Research, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Taishi Tsubouchi
- Research and Development Center for Marine Biosciences, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Keiko Usui
- Research and Development Center for Marine Biosciences, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Katsuyuki Uematsu
- Department of Marine Science, Marine Works Japan Ltd., 3-54-1 Oppamahigashi, Yokosuka 237-0063, Japan
| | - Akihiro Tame
- Department of Marine Science, Marine Works Japan Ltd., 3-54-1 Oppamahigashi, Yokosuka 237-0063, Japan
| | - Yuichi Nogi
- Research and Development Center for Marine Biosciences, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Yukari Ohta
- Research and Development Center for Marine Biosciences, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Yuji Hatada
- Research and Development Center for Marine Biosciences, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Chiaki Kato
- Department of Marine Biodiversity Research, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Tetsuya Miwa
- Marine Technology and Engineering Center, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Takashi Toyofuku
- Department of Marine Biodiversity Research, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Takehiko Nagahama
- Department of Foods and Human Nutrition, Notre Dame Seishin University, 2-16-9 Ifuku-cho, Kita-ku, Okayama 700-8516, Japan
| | - Masaaki Konishi
- Research and Development Center for Marine Biosciences, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan Department of Biotechnology and Environmental Chemistry, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan
| | - Yuriko Nagano
- Department of Marine Biodiversity Research, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Fumiyoshi Abe
- Department of Chemistry and Biological Science, College of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara 252-5258, Japan
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Ni S, Leemann J, Wolf H, Isa L. Insights into mechanisms of capillary assembly. Faraday Discuss 2015; 181:225-42. [DOI: 10.1039/c4fd00250d] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Capillary assembly in a topographical template is a powerful and flexible method for fabricating complex and programmable particle assemblies. To date, very little attention has been paid to the effects that the trap geometry – in particular the trap depth – has on the outcome of the assembly process. In this paper, we provide insights into the mechanisms behind this directed assembly method by systematically studying the impact of the trap depth and the surface tension of the suspension. Using confocal microscopy, we investigate the assembly process at the single-particle level and use these observations to formulate a simple mechanical model that offers guidelines for the successful assembly of single or multiple particles in a trap. In particular, single particles are assembled for shallow traps and moderate surface tensions, opening up the possibility to fabricate multifunctional particle dimers in two consecutive assembly steps.
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Affiliation(s)
- Songbo Ni
- Laboratory for Interfaces
- Soft Matter and Assembly
- Department of Materials
- ETH Zurich
- 8093 Zurich
| | - Jessica Leemann
- Laboratory for Interfaces
- Soft Matter and Assembly
- Department of Materials
- ETH Zurich
- 8093 Zurich
| | | | - Lucio Isa
- Laboratory for Interfaces
- Soft Matter and Assembly
- Department of Materials
- ETH Zurich
- 8093 Zurich
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Micropatterning strategies to engineer controlled cell and tissue architecture in vitro. Biotechniques 2015; 58:13-23. [PMID: 25605576 DOI: 10.2144/000114245] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 12/26/2014] [Indexed: 11/23/2022] Open
Abstract
Micropatterning strategies, which enable control over cell and tissue architecture in vitro, have emerged as powerful platforms for modelling tissue microenvironments at different scales and complexities. Here, we provide an overview of popular micropatterning techniques, along with detailed descriptions, to guide new users through the decision making process of which micropatterning procedure to use, and how to best obtain desired tissue patterns. Example techniques and the types of biological observations that can be made are provided from the literature. A focus is placed on microcontact printing to obtain co-cultures of patterned, confluent sheets, and the challenges associated with optimizing this protocol. Many issues associated with microcontact printing, however, are relevant to all micropatterning methodologies. Finally, we briefly discuss challenges in addressing key limitations associated with current micropatterning technologies.
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Muldur SK, Desmet C, La Spina R, Monteiro BDJDC, Halamoda-Kenzaoui B, Spampinato V, Ceccone G, Valsesia A, Kinsner-Ovaskainen A, Colpo P, Rossi F. Modulation of surface bio-functionality by using gold nanostructures on protein repellent surfaces. RSC Adv 2015. [DOI: 10.1039/c5ra13822a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
A simple and straightforward nanofabrication method for the creation of gold nanoparticles patterns on a biologically inert plasma-deposited poly(ethyleneoxide) film for sensing and cell culture applications.
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Affiliation(s)
- Sinan K. Muldur
- European Commission Joint
- Research Centre
- Institute for Health and Consumer Protection
- Nanobioscience Unit
- Ispra
| | - Cloe Desmet
- European Commission Joint
- Research Centre
- Institute for Health and Consumer Protection
- Nanobioscience Unit
- Ispra
| | - Rita La Spina
- European Commission Joint
- Research Centre
- Institute for Health and Consumer Protection
- Nanobioscience Unit
- Ispra
| | | | - Blanka Halamoda-Kenzaoui
- European Commission Joint
- Research Centre
- Institute for Health and Consumer Protection
- Nanobioscience Unit
- Ispra
| | - Valentina Spampinato
- European Commission Joint
- Research Centre
- Institute for Health and Consumer Protection
- Nanobioscience Unit
- Ispra
| | - Giacomo Ceccone
- European Commission Joint
- Research Centre
- Institute for Health and Consumer Protection
- Nanobioscience Unit
- Ispra
| | - Andrea Valsesia
- European Commission Joint
- Research Centre
- Institute for Health and Consumer Protection
- Nanobioscience Unit
- Ispra
| | | | - Pascal Colpo
- European Commission Joint
- Research Centre
- Institute for Health and Consumer Protection
- Nanobioscience Unit
- Ispra
| | - François Rossi
- European Commission Joint
- Research Centre
- Institute for Health and Consumer Protection
- Nanobioscience Unit
- Ispra
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Thuenauer R, Rodriguez-Boulan E, Römer W. Microfluidic approaches for epithelial cell layer culture and characterisation. Analyst 2014; 139:3206-18. [PMID: 24668405 PMCID: PMC4286366 DOI: 10.1039/c4an00056k] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In higher eukaryotes, epithelial cell layers line most body cavities and form selective barriers that regulate the exchange of solutes between compartments. In order to fulfil these functions, the cells assume a polarised architecture and maintain two distinct plasma membrane domains, the apical domain facing the lumen and the basolateral domain facing other cells and the extracellular matrix. Microfluidic biochips offer the unique opportunity to establish novel in vitro models of epithelia in which the in vivo microenvironment of epithelial cells is precisely reconstituted. In addition, analytical tools to monitor biologically relevant parameters can be directly integrated on-chip. In this review we summarise recently developed biochip designs for culturing epithelial cell layers. Since endothelial cell layers, which line blood vessels, have similar barrier functions and polar organisation as epithelial cell layers, we also discuss biochips for culturing endothelial cell layers. Furthermore, we review approaches to integrate tools to analyse and manipulate epithelia and endothelia in microfluidic biochips; including methods to perform electrical impedance spectroscopy; methods to detect substances undergoing trans-epithelial transport via fluorescence, spectrophotometry, and mass spectrometry; techniques to mechanically stimulate cells via stretching and fluid flow-induced shear stress; and methods to carry out high-resolution imaging of vesicular trafficking using light microscopy. Taken together, this versatile microfluidic toolbox enables novel experimental approaches to characterise epithelial monolayers.
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Affiliation(s)
- Roland Thuenauer
- Institute of Biology II, Albert-Ludwigs-University Freiburg, Schänzlestraße 1, 79104 Freiburg, Germany.
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Liu N, Liang W, Liu L, Wang Y, Mai JD, Lee GB, Li WJ. Extracellular-controlled breast cancer cell formation and growth using non-UV patterned hydrogels via optically-induced electrokinetics. LAB ON A CHIP 2014; 14:1367-76. [PMID: 24531214 DOI: 10.1039/c3lc51247a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The culturing of cancer cells on micropatterned substrates can provide insight into the factors of the extracellular environment that enable the control of cell growth. We report here a novel non-UV-based technique to quickly micropattern a poly-(ethylene) glycol diacrylate (PEGDA)-based hydrogel on top of modified glass substrates, which were then used to control the growth patterns of breast cancer cells. Previously, the fabrication of micropatterned substrates required relatively complicated steps, which made it impractical for researchers to rapidly and systematically investigate the effects of different cell growth patterns. The technique presented herein operates on the principle of optically-induced electrokinetics (OEKs) and uses computer-generated projection light patterns to dynamically pattern the hydrogel on a hydrogenated amorphous silicon (a-Si:H) thin-film, atop an indium tin oxide (ITO) glass substrate. This technique allows us to pattern lines, circles, pentagons, and more complex shapes in the hydrogel with line widths below 3 μm and thicknesses of up to 6 μm within 8 s by simply controlling the projected illumination pattern and applying an appropriate AC voltage between the two ITO glass substrates. After separating the glass substrates to expose the patterned hydrogel, we experimentally demonstrate that MCF-7 breast cancer cells will adhere to the bare a-Si:H surface, but not to the hydrogel patterned in various geometric shapes and sizes. Theoretical analysis and finite-element model simulations reveal that the dominant OEK forces in our technique are the dielectrophoresis (DEP) force and the electro-osmosis force, which enhance the photo-initiated cross-linking reaction in the hydrogel. Our preliminary cultures of breast cancer cells demonstrate that this reported technique could be applied to effectively confine the growth of cancer cells on a-Si:H surfaces and affect individual cell geometry during their growth.
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Affiliation(s)
- Na Liu
- State Key Lab of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, China.
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33
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Directing GPCR-transfected cells and neuronal projections with nano-scale resolution. Biomaterials 2013; 34:10065-74. [DOI: 10.1016/j.biomaterials.2013.09.070] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 09/20/2013] [Indexed: 12/18/2022]
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Rothbauer M, Küpcü S, Sticker D, Sleytr UB, Ertl P. Exploitation of S-layer anisotropy: pH-dependent nanolayer orientation for cellular micropatterning. ACS NANO 2013; 7:8020-8030. [PMID: 24004386 DOI: 10.1021/nn403198a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We have developed a tunable, facile, and reliable cell patterning method using a self-assembled crystalline protein monolayer that, depending on its orientation, can exhibit either cell adhesive (cytophilic) or cell repulsive (cytophobic) surface properties. Our technique exploits, for the first time, the inherent biological anisotropy of the bacterial cell wall protein SbpA capable of interacting with its cytophilic inner side with components of the cell wall, while its outer cytophobic side interacts with the environment. By simply altering the recrystallization protocol from a basic to an acidic condition, the SbpA-protein layer orientation and function can be switched from preventing unspecific protein adsorption and cell adhesion to effectively promote cell attachment, spreading, and proliferation. As a result, the same protein solution can be used to form cell adhesive and repulsive regions over large areas on a single substrate using a simple pH-dependent self-assembly procedure. The reliable establishment of cytophobic and cytophilic SbpA layers allows the generation of well-defined surface patterns that exhibit uniform height (9-10 nm), p4 lattice symmetry with center-to-center spacing of the morphological units of 12 nm, as well as similar surface potential and charge distributions under cell culture conditions. The pH-dependent "orientation switch" of the SbpA protein nanolayer was integrated with micromolding in capillaries (MIMIC) technology to demonstrate its application for cell patterning using a variety of cell lines including epithelial, fibroblast and endothelial cells.
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Affiliation(s)
- Mario Rothbauer
- Institute for Biophysics, Department of Nanobiotechnology, ‡Institute for Synthetic Bioarchitectures, Department of Nanobiotechnology, †BioSensor Technologies, Austrian Institute of Technology (AIT), University of Natural Resources and Life Science , Muthgasse 11, Vienna 1190, Austria
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Bio-inspired encapsulation and functionalization of living cells with artificial shells. Colloids Surf B Biointerfaces 2013; 113:483-500. [PMID: 24120320 DOI: 10.1016/j.colsurfb.2013.09.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 09/11/2013] [Accepted: 09/13/2013] [Indexed: 12/25/2022]
Abstract
In nature, most single cells do not have structured shells to provide extensive protection apart from diatoms and radiolarians. Fabrication of biomimetic structures based on living cells encapsulated with artificial shells has a great impact on the area of cell-based sensors and devices as well as fundamental studies in cell biology. The past decade has witnessed a rapid increase of research concerning the new fabrication strategies, functionalization and applications of this kind of encapsulated cells. In this review, the latest fabrication strategies on how to encapsulate living cells with functional shells based on the diversity of artificial shells are discussed: hydrogel matrix shells, sol-gel shells, polymeric shells, and induced mineral shells. Classical different types of artificial shells are introduced and their advantages and disadvantages are compared and explained. The biomedical applications of encapsulated cells with particular emphasis on cell implant protection, cell separation, biosensors, cell therapy and tissue engineering are also described and a recap of this review and the future perspectives on these active areas is given finally.
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Palacios-Cuesta M, Cortajarena AL, García O, Rodríguez-Hernández J. Versatile Functional Microstructured Polystyrene-Based Platforms for Protein Patterning and Recognition. Biomacromolecules 2013; 14:3147-54. [DOI: 10.1021/bm400771y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Marta Palacios-Cuesta
- Department of Chemistry and
Properties of Polymers, Instituto de Ciencia y Tecnología de Polímeros, (ICTP-CSIC), Juan de la Cierva
3, 28006 Madrid, Spain
| | - Aitziber L. Cortajarena
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia), Cantoblanco, 28049 Madrid, Spain and CNB-CSIC-IMDEA Nanociencia
Associated Unit “Unidad de Nanobiotecnología”
| | - Olga García
- Department of Chemistry and
Properties of Polymers, Instituto de Ciencia y Tecnología de Polímeros, (ICTP-CSIC), Juan de la Cierva
3, 28006 Madrid, Spain
| | - Juan Rodríguez-Hernández
- Department of Chemistry and
Properties of Polymers, Instituto de Ciencia y Tecnología de Polímeros, (ICTP-CSIC), Juan de la Cierva
3, 28006 Madrid, Spain
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Lee Y, Famouri P. Directional transport by nonprocessive motor proteins on fascin-cross-linked actin arrays. NANO LETTERS 2013; 13:3775-3782. [PMID: 23819661 DOI: 10.1021/nl401718q] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this study, the unidirectional transport of heavy meromyosin (HMM)-coated beads is demonstrated on fascin-cross-linked actin arrays. The streptavidin-coated surface was properly blocked to prevent nonspecific binding of F-actin and, as a result, a high population of long gelsolin-actin complexes was suspended in the medium for subsequent processes. A flow field was utilized to lay down F-actin aligned along the direction of the flow and fascin cross-linked laid F-actin to prevent F-actin resuspension. When HMM-coated beads came into contact with the fascin-cross-linked actin arrays, they started to move in the same direction over long distances. Because of the nonprocessive nature of myosin II motor protein, the bead size limited the number of HMM heads on the area in contact with F-actin arrays, which resulted in beads traveling at different velocities according to their sizes. Furthermore, this study demonstrates the patterning of actin arrays, which could serve as a basis for the development of applications.
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Affiliation(s)
- Yongkuk Lee
- Lane Department of Computer Science and Electrical Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
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Mehrali M, Shirazi FS, Mehrali M, Metselaar HSC, Kadri NAB, Osman NAA. Dental implants from functionally graded materials. J Biomed Mater Res A 2013; 101:3046-57. [PMID: 23754641 DOI: 10.1002/jbm.a.34588] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Accepted: 01/04/2013] [Indexed: 11/05/2022]
Abstract
Functionally graded material (FGM) is a heterogeneous composite material including a number of constituents that exhibit a compositional gradient from one surface of the material to the other subsequently, resulting in a material with continuously varying properties in the thickness direction. FGMs are gaining attention for biomedical applications, especially for implants, owing to their reported superior composition. Dental implants can be functionally graded to create an optimized mechanical behavior and achieve the intended biocompatibility and osseointegration improvement. This review presents a comprehensive summary of biomaterials and manufacturing techniques researchers employ throughout the world. Generally, FGM and FGM porous biomaterials are more difficult to fabricate than uniform or homogenous biomaterials. Therefore, our discussion is intended to give the readers about successful and obstacles fabrication of FGM and porous FGM in dental implants that will bring state-of-the-art technology to the bedside and develop quality of life and present standards of care.
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Affiliation(s)
- Mehdi Mehrali
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, 50603, Malaysia
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Li C, Zhang J, Li Y, Moran S, Khang G, Ge Z. Poly (l-lactide-co-caprolactone) scaffolds enhanced with poly (β-hydroxybutyrate-co-β-hydroxyvalerate) microspheres for cartilage regeneration. Biomed Mater 2013; 8:025005. [DOI: 10.1088/1748-6041/8/2/025005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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de León AS, Rodríguez-Hernández J, Cortajarena AL. Honeycomb patterned surfaces functionalized with polypeptide sequences for recognition and selective bacterial adhesion. Biomaterials 2013. [DOI: 10.1016/j.biomaterials.2012.10.074] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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41
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Hynes MJ, Maurer JA. Lighting the path: photopatternable substrates for biological applications. ACTA ACUST UNITED AC 2013; 9:559-64. [DOI: 10.1039/c2mb25403d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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42
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Zhou Y, Zhu Y. A hierarchical scaffold: natural growth of three-dimensional nanowire bundles from microporous Ta. RSC Adv 2013. [DOI: 10.1039/c3ra40896e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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Mitra J, Tripathi G, Sharma A, Basu B. Scaffolds for bone tissue engineering: role of surface patterning on osteoblast response. RSC Adv 2013. [DOI: 10.1039/c3ra23315d] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Honegger T, Peyrade D. Dielectrophoretic properties of engineered protein patterned colloidal particles. BIOMICROFLUIDICS 2012; 6:44115. [PMID: 24339848 PMCID: PMC3555509 DOI: 10.1063/1.4771544] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 11/27/2012] [Indexed: 05/23/2023]
Abstract
This work determines the dielectrophoretic response of surface modified polystyrene and silica colloidal particles by experimentally measuring their Clausius-Mossotti factors. Commercial charged particles, fabricated ones coated with fibronectin, and Janus particles that have been grafted with fibronectin on one side only were investigated. We show that the dielectrophoretic response of such particles can be controlled by the modification of the chemistry or the anisotropy of their surface. Moreover, by modelling the polarizabilities of those particles, the dielectric parameters of the particles and the grafted layer of protein can be measured.
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Affiliation(s)
- T Honegger
- LTM, CNRS-UJF, CEA-LETI, 17 av. des Martyrs, 38054 Grenoble, France
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45
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Hynes MJ, Maurer JA. Photoinduced monolayer patterning for the creation of complex protein patterns. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:16237-16242. [PMID: 23145751 DOI: 10.1021/la303429a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This work investigates self-assembled monolayers that were formed from a glycol-terminated thiol monomer and were patterned using photoinduced monolayer desorption. Utilizing direct-write photolithography provided a facile means to generate complex protein patterns containing gradients and punctate regions. The ablated glycol monolayers were characterized using scanning probe microscopy, which allowed us to observe differences in the nanomechanical properties between the patterned and nonpatterned regions of the substrate. The patterned regions on the surface adsorbed proteins, and this process was monitored quantitatively using surface plasmon resonance imaging (SPRi). Moreover, the concentration of the protein could be controlled accurately by simply setting the gray level in the 8-bit image. Adsorbed protein was probed using a commercially available antibody binding assay, which showed significant enhancement over the background. The ability to produce complex protein patterns will contribute greatly to creating in vitro models that more accurately mimic an in vivo environment.
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Affiliation(s)
- Matthew J Hynes
- Department of Chemistry and Center for Materials Innovation, Washington University in St. Louis, St. Louis, Missouri 63130, USA
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Overview of micro- and nano-technology tools for stem cell applications: micropatterned and microelectronic devices. SENSORS 2012. [PMID: 23202240 PMCID: PMC3522993 DOI: 10.3390/s121115947] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In the past few decades the scientific community has been recognizing the paramount role of the cell microenvironment in determining cell behavior. In parallel, the study of human stem cells for their potential therapeutic applications has been progressing constantly. The use of advanced technologies, enabling one to mimic the in vivo stem cell microenviroment and to study stem cell physiology and physio-pathology, in settings that better predict human cell biology, is becoming the object of much research effort. In this review we will detail the most relevant and recent advances in the field of biosensors and micro- and nano-technologies in general, highlighting advantages and disadvantages. Particular attention will be devoted to those applications employing stem cells as a sensing element.
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Stoianov SV, Daengngam C, Borhani M, Zhang Y, Morris JR, Robinson HD. Amine-rich polyelectrolyte multilayers for patterned surface fixation of nanostructures. ACS APPLIED MATERIALS & INTERFACES 2012; 4:2348-2357. [PMID: 22475030 DOI: 10.1021/am300117f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We describe a lithographic method for directly patterning the adhesive properties of amine-rich layer-by-layer assembled polymer films, useful for positioning metal and other nanostructures. The adhesive properties of the films are sufficiently robust that the films can be patterned with standard as opposed to soft lithographic methods. We perform the patterning with a lithographically defined evaporated aluminum mask which protects selected regions of the substrate, passivating adhesion in the exposed regions with acetic anhydride. When the aluminum is removed with a HCl etch, the protected regions retain their adhesion, whereas particle adsorption is almost completely eliminated in the passivated areas, making it possible to guide adsorption to the protected areas. The high degree of adhesion comes about because of uncoordinated amine groups that pervade the film. Cycling the pH from high values to low and back causes the amines to be rearranged, rejuvenating the adhesive properties of the surface, which is the likely origin of the robustness of the adhesive properties to processing. pH adjustment also causes reversible swelling and deswelling of the film, so that the vertical position and dielectric environment of the nanostructure can be dynamically adjusted, which can be particularly beneficial for tuning the plasmonic resonances of metallic structures.
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Affiliation(s)
- Stefan V Stoianov
- Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA
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48
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Zorlutuna P, Annabi N, Camci-Unal G, Nikkhah M, Cha JM, Nichol JW, Manbachi A, Bae H, Chen S, Khademhosseini A. Microfabricated biomaterials for engineering 3D tissues. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:1782-804. [PMID: 22410857 PMCID: PMC3432416 DOI: 10.1002/adma.201104631] [Citation(s) in RCA: 269] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Indexed: 05/04/2023]
Abstract
Mimicking natural tissue structure is crucial for engineered tissues with intended applications ranging from regenerative medicine to biorobotics. Native tissues are highly organized at the microscale, thus making these natural characteristics an integral part of creating effective biomimetic tissue structures. There exists a growing appreciation that the incorporation of similar highly organized microscale structures in tissue engineering may yield a remedy for problems ranging from vascularization to cell function control/determination. In this review, we highlight the recent progress in the field of microscale tissue engineering and discuss the use of various biomaterials for generating engineered tissue structures with microscale features. In particular, we will discuss the use of microscale approaches to engineer the architecture of scaffolds, generate artificial vasculature, and control cellular orientation and differentiation. In addition, the emergence of microfabricated tissue units and the modular assembly to emulate hierarchical tissues will be discussed.
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Affiliation(s)
- Pinar Zorlutuna
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
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49
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Wang K, Zhou C, Hong Y, Zhang X. A review of protein adsorption on bioceramics. Interface Focus 2012; 2:259-77. [PMID: 23741605 DOI: 10.1098/rsfs.2012.0012] [Citation(s) in RCA: 163] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Accepted: 02/28/2012] [Indexed: 11/12/2022] Open
Abstract
Bioceramics, because of its excellent biocompatible and mechanical properties, has always been considered as the most promising materials for hard tissue repair. It is well know that an appropriate cellular response to bioceramics surfaces is essential for tissue regeneration and integration. As the in vivo implants, the implanted bioceramics are immediately coated with proteins from blood and body fluids, and it is through this coated layer that cells sense and respond to foreign implants. Hence, the adsorption of proteins is critical within the sequence of biological activities. However, the biological mechanisms of the interactions of bioceramics and proteins are still not well understood. In this review, we will recapitulate the recent studies on the bioceramic-protein interactions.
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Affiliation(s)
- Kefeng Wang
- National Engineering Research Center for Biomaterials , Sichuan University , 610064 Chengdu , People's Republic of China
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50
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Choi WS, Kim M, Park S, Lee SK, Kim T. Patterning and transferring hydrogel-encapsulated bacterial cells for quantitative analysis of synthetically engineered genetic circuits. Biomaterials 2012; 33:624-33. [DOI: 10.1016/j.biomaterials.2011.09.069] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Accepted: 09/26/2011] [Indexed: 01/24/2023]
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