51
|
Lu J, Zheng F, Cheng Y, Ding H, Zhao Y, Gu Z. Hybrid inverse opals for regulating cell adhesion and orientation. NANOSCALE 2014; 6:10650-10656. [PMID: 25088946 DOI: 10.1039/c4nr02626h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Cell adhesion and alignment are two important considerations in tissue engineering applications as they can regulate the subsequent cell proliferation activity and differentiation program. Although many effects have been applied to regulate the adhesion or alignment of cells by using physical and chemical methods, it is still a challenge to regulate these cell behaviors simultaneously. Here, we present novel substrates with tunable nanoscale patterned structures for regulating the adhesion and alignment of cells. The substrates with different degrees of pattern orientation were achieved by customizing the amount of stretching applied to polymer inverse opal films. Cells cultured on these substrates showed an adjustable morphology and alignment. Moreover, soft hydrogels, which have poor plasticity and are difficult to cast into patterned structures, were applied to infiltrate the inverse opal structure. We demonstrated that the adhesion ratio of cells could be regulated by these hybrid substrates, as well as adjusting the cell morphology and alignment. These features of functional inverse opal substrates make them suitable for important applications in tissue engineering.
Collapse
Affiliation(s)
- Jie Lu
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, 210096, China.
| | | | | | | | | | | |
Collapse
|
52
|
Azimi S, Dang ZY, Ansari K, Breese MBH. Fabrication of silicon molds with multi-level, non-planar, micro- and nano-scale features. NANOTECHNOLOGY 2014; 25:375301. [PMID: 25148117 DOI: 10.1088/0957-4484/25/37/375301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A method for single-step fabrication of arbitrary, complex, three-dimensional (3D) silicon structures from the nano- to millimeter-scale at multiple levels on non-planar, curved, or domed surfaces is reported. The fabrication is based on focused or masked ion beam irradiation of p-type silicon followed by electrochemical anodization. The process allows fabrication of a wide range of surface features at multiple heights and with arbitrary orientations by varying the irradiated feature width, ion type, energy fluence, and subsequent anodization conditions. The technology has achieved depth resolution of 10 nm as step heights and is capable of creating lateral features down to 7 nm at high aspect ratios of up to 40, with surface roughness down to 1 nm scaled up to full wafer areas. The single-step ability has seamlessly interfaced a network of complex, integrated micro- to nano-structures in 3D orientations with no alignment required. The final template has been converted to a master copy for nano-imprinting lithography of 3D fluidic structures and optical components.
Collapse
Affiliation(s)
- S Azimi
- Department of Physics, National University of Singapore, Singapore 117542, Singapore. Singapore Synchrotron Light Source (SSLS), National University of Singapore, 5 Research Link, Singapore 117603, Singapore
| | | | | | | |
Collapse
|
53
|
Hu B, Shi W, Wu YL, Leow WR, Cai P, Li S, Chen X. Orthogonally engineering matrix topography and rigidity to regulate multicellular morphology. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:5786-5793. [PMID: 25066463 DOI: 10.1002/adma.201402489] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Indexed: 06/03/2023]
Abstract
Programmable polymer substrates, which mimic the variable extracellular matrices in living systems, are used to regulate multicellular morphology, via orthogonally modulating the matrix topography and elasticity. The multicellular morphology is dependent on the competition between cell-matrix adhesion and cell-cell adhesion. Decreasing the cell-matrix adhesion provokes cytoskeleton reorganization, inhibits lamellipodial crawling, and thus enhances the leakiness of multicellular morphology.
Collapse
Affiliation(s)
- Benhui Hu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | | | | | | | | | | | | |
Collapse
|
54
|
Shi X, Li L, Ostrovidov S, Shu Y, Khademhosseini A, Wu H. Stretchable and micropatterned membrane for osteogenic differentation of stem cells. ACS APPLIED MATERIALS & INTERFACES 2014; 6:11915-23. [PMID: 24977302 DOI: 10.1021/am5029236] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Stem cells have emerged as potentially useful cells for regenerative medicine applications. To fully harness this potential, it is important to develop in vitro cell culture platforms with spatially regulated mechanical, chemical, and biological cues to induce the differentiation of stem cells. In this study, a cell culture platform was constructed that used polydopamine (PDA)-coated parafilm. The modified parafilm supports cell attachment and proliferation. In addition, because of the superb plasticity and ductility of the parafilm, it can be easily micropatterned to regulate the spatial arrangements of cells, and can exert different mechanical tensions. Specifically, we constructed a PDA-coated parafilm with grooved micropatterns to induce the osteogenic differentiation of stem cells. Adipose-derived mesenchymal stem cells that were cultured on the PDA-coated parafilm exhibited significantly higher osteogenic commitment in response to mechanical and spatial cues compared to the ones without stretch. Our findings may open new opportunities for inducing osteogenesis of stem cells in vitro using the platform that combines mechanical and spatial cues.
Collapse
Affiliation(s)
- Xuetao Shi
- WPI-Advanced Institute for Materials Research, Tohoku University , Sendai 980-8578, Japan
| | | | | | | | | | | |
Collapse
|
55
|
Tang R, Moyano DF, Subramani C, Yan B, Jeoung E, Tonga GY, Duncan B, Yeh YC, Jiang Z, Kim C, Rotello VM. Rapid coating of surfaces with functionalized nanoparticles for regulation of cell behavior. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:3310-4. [PMID: 24677290 PMCID: PMC4060264 DOI: 10.1002/adma.201306030] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Indexed: 05/18/2023]
Abstract
A robust monolayer of nanoparticles is formed via dip-coating of cell culture plates. These surfaces provide cell type-specific modulation of growth behavior without the uptake of nanoparticles.
Collapse
Affiliation(s)
- Rui Tang
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, Massachusetts, 01003, USA
| | - Daniel F. Moyano
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, Massachusetts, 01003, USA
| | | | - Bo Yan
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, Massachusetts, 01003, USA
| | - Eunhee Jeoung
- Department of Chemistry, Gangneung-Wonju National University, Gangneung, Gangwon-do, 210-702, Korea
| | - Gülen Yesilbag Tonga
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, Massachusetts, 01003, USA
| | - Bradley Duncan
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, Massachusetts, 01003, USA
| | - Yi-Cheun Yeh
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, Massachusetts, 01003, USA
| | - Ziwen Jiang
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, Massachusetts, 01003, USA
| | - Chaekyu Kim
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, Massachusetts, 01003, USA
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, Massachusetts, 01003, USA
| |
Collapse
|
56
|
Smith AM, Prabhakarpandian B, Pant K. Generation of shear adhesion map using SynVivo synthetic microvascular networks. J Vis Exp 2014. [PMID: 24893648 DOI: 10.3791/51025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Cell/particle adhesion assays are critical to understanding the biochemical interactions involved in disease pathophysiology and have important applications in the quest for the development of novel therapeutics. Assays using static conditions fail to capture the dependence of adhesion on shear, limiting their correlation with in vivo environment. Parallel plate flow chambers that quantify adhesion under physiological fluid flow need multiple experiments for the generation of a shear adhesion map. In addition, they do not represent the in vivo scale and morphology and require large volumes (~ml) of reagents for experiments. In this study, we demonstrate the generation of shear adhesion map from a single experiment using a microvascular network based microfluidic device, SynVivo-SMN. This device recreates the complex in vivo vasculature including geometric scale, morphological elements, flow features and cellular interactions in an in vitro format, thereby providing a biologically realistic environment for basic and applied research in cellular behavior, drug delivery, and drug discovery. The assay was demonstrated by studying the interaction of the 2 µm biotin-coated particles with avidin-coated surfaces of the microchip. The entire range of shear observed in the microvasculature is obtained in a single assay enabling adhesion vs. shear map for the particles under physiological conditions.
Collapse
Affiliation(s)
| | | | - Kapil Pant
- Biomedical Technology, CFD Research Corporation
| |
Collapse
|
57
|
Rahmani S, Saha S, Durmaz H, Donini A, Misra AC, Yoon J, Lahann J. Chemically orthogonal three-patch microparticles. Angew Chem Int Ed Engl 2014; 53:2332-8. [PMID: 24574030 PMCID: PMC5550901 DOI: 10.1002/anie.201310727] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Indexed: 12/24/2022]
Abstract
Compared to two-dimensional substrates, only a few methodologies exist for the spatially controlled decoration of three-dimensional objects, such as microparticles. Combining electrohydrodynamic co-jetting with synthetic polymer chemistry, we were able to create two- and three-patch microparticles displaying chemically orthogonal anchor groups on three distinct surface patches of the same particle. This approach takes advantage of a combination of novel chemically orthogonal polylactide-based polymers and their processing by electrohydrodynamic co-jetting to yield unprecedented multifunctional microparticles. Several micropatterned particles were fabricated displaying orthogonal click functionalities. Specifically, we demonstrate novel two- and three-patch particles. Multi-patch particles are highly sought after for their potential to present multiple distinct ligands in a directional manner. This work clearly establishes a viable route towards orthogonal reaction strategies on multivalent micropatterned particles.
Collapse
Affiliation(s)
- Sahar Rahmani
- Department of Biomedical Engineering, Chemical Engineering, Macromolecular Science and Engineering, Material Science and Engineering, University of Michigan, Ann Arbor, 48109 (USA) http://www.umich.edu/∼lahannj/index.htm; Institute of Functional Interfaces, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen (Germany)
| | | | | | | | | | | | | |
Collapse
|
58
|
Rahmani S, Saha S, Durmaz H, Donini A, Misra AC, Yoon J, Lahann J. Chemically Orthogonal Three-Patch Microparticles. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310727] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
59
|
Liu W, Shang L, Zheng F, Lu J, Qian J, Zhao Y, Gu Z. Photonic crystal encoded microcarriers for biomaterial evaluation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:88-93. [PMID: 23861358 DOI: 10.1002/smll.201301253] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 06/18/2013] [Indexed: 05/10/2023]
Abstract
Photonic crystal encoded biomaterials microcarriers made from silica-hybrid photonic crystal beads are reported. The characteristic reflection peak originating from the physical periodic structure is used as the code of the microcarriers. They are stable during cell adhesion and culture on their surface. Based on this method, Different biomaterials are incorporated into different PCBs and used as encoded microcarriers for the multiplex evaluation of the interaction of cells and materials in a single culture experiment. These encoded microcarriers are ideal for multiplex bioevaluation of biomaterials or drug applications.
Collapse
Affiliation(s)
- Wei Liu
- Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | | | | | | | | | | | | |
Collapse
|
60
|
He Y, Wang X, Chen L, Ding J. Preparation of hydroxyapatite micropatterns for the study of cell–biomaterial interactions. J Mater Chem B 2014; 2:2220-2227. [DOI: 10.1039/c4tb00146j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
61
|
Blends of thermoplastic polyurethane and polydimethylsiloxane rubber: assessment of biocompatibility and suture holding strength of membranes. Int J Biomater 2013; 2013:240631. [PMID: 24454376 PMCID: PMC3878810 DOI: 10.1155/2013/240631] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 11/12/2013] [Indexed: 11/30/2022] Open
Abstract
In the present investigation, a compatibilized blend of thermoplastic polyurethane (TPU) and polydimethylsiloxane (PDMS) is prepared by using copolymer of ethylene and methyl acrylate (EMA) as a reactive compatibilizer. Detailed in vitro biocompatibility studies were carried out for this compatibilized blend and the material was found noncytotoxic towards L929 mouse fibroblast subcutaneous connective tissue cell line. Microporosity was created on the surface of membranes prepared from the blend material by adopting the crazing mechanism. Cell proliferation and growth studies on the membranes surface showed that the microporous surface favoured ingrowth of the cells compared with a nonmicroporous surface. Suture holding strength studies indicate that the microporous membranes have enough strength to withstand the cutting and tearing forces through the suture hole. This blend material could be evaluated further to find its suitability in various implant applications.
Collapse
|
62
|
Andrews RN, Mun KS, Scott C, Ho CC, Co CC. Rapid Prototyping of Heterotypic Cell-Cell Contacts. J Mater Chem B 2013; 1:5773-5777. [PMID: 24466428 PMCID: PMC3899713 DOI: 10.1039/c3tb21038c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Disparities in cellular behaviour between cultures of a single cell type and heterogeneous co-cultures require constructing spatially-defined arrays of multiple cell types. Such arrays are critical for investigating cellular properties as they exist in vivo. Current methods rely upon covalent surface modification or external physical micromanipulation to control cellular organization on a limited range of substrates. Here, we report a direct approach for creating co-cultures of different cell types by microcontact printing a photosensitive cell resist. The cell-resistant polymer converts to cell adhesive 0 with light exposure, thus the initial copolymer pattern dictates the position of both cell types. This strategy enables straightforward preparation of tailored heterotypic cell-cell contacts on materials ranging from polymers to metallic substrates.
Collapse
Affiliation(s)
- Ross N. Andrews
- Department of Chemical Engineering, University of Cincinnati, 2901 Woodside Drive, Cincinnati, OH 45221
| | - Kyu-Shik Mun
- Department of Chemical Engineering, University of Cincinnati, 2901 Woodside Drive, Cincinnati, OH 45221
| | - Carl Scott
- Department of Chemical Engineering, University of Cincinnati, 2901 Woodside Drive, Cincinnati, OH 45221
| | - Chia-Chi Ho
- Department of Chemical Engineering, University of Cincinnati, 2901 Woodside Drive, Cincinnati, OH 45221
| | - Carlos C. Co
- Department of Chemical Engineering, University of Cincinnati, 2901 Woodside Drive, Cincinnati, OH 45221
| |
Collapse
|
63
|
Yao X, Peng R, Ding J. Cell-material interactions revealed via material techniques of surface patterning. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:5257-5286. [PMID: 24038153 DOI: 10.1002/adma.201301762] [Citation(s) in RCA: 358] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 07/15/2013] [Indexed: 06/02/2023]
Abstract
Cell-material interactions constitute a key fundamental topic in biomaterials study. Various cell cues and matrix cues as well as soluble factors regulate cell behaviors on materials. These factors are coupled with each other as usual, and thus it is very difficult to unambiguously elucidate the role of each regulator. The recently developed material techniques of surface patterning afford unique ways to reveal the underlying science. This paper reviews the pertinent material techniques to fabricate patterns of microscale and nanoscale resolutions, and corresponding cell studies. Some issues are emphasized, such as cell localization on patterned surfaces of chemical contrast, and effects of cell shape, cell size, cell-cell contact, and seeding density on differentiation of stem cells. Material cues to regulate cell adhesion, cell differentiation and other cell events are further summed up. Effects of some physical properties, such as surface topography and matrix stiffness, on cell behaviors are also discussed; nanoscaled features of substrate surfaces to regulate cell fate are summarized as well. The pertinent work sheds new insight into the cell-material interactions, and is stimulating for biomaterial design in regenerative medicine, tissue engineering, and high-throughput detection, diagnosis, and drug screening.
Collapse
Affiliation(s)
- Xiang Yao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Advanced Materials Laboratory, Fudan University, 200433, Shanghai, China
| | | | | |
Collapse
|
64
|
Cell adhesion promotion strategies for signal transduction enhancement in microelectrode array in vitro electrophysiology: An introductory overview and critical discussion. Curr Opin Colloid Interface Sci 2013. [DOI: 10.1016/j.cocis.2013.07.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
65
|
Khademhosseini A, Peppas NA. Micro- and nanoengineering of biomaterials for healthcare applications. Adv Healthc Mater 2013; 2:10-2. [PMID: 23299936 DOI: 10.1002/adhm.201200444] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
66
|
Ramanathan M, Shrestha LK, Mori T, Ji Q, Hill JP, Ariga K. Amphiphile nanoarchitectonics: from basic physical chemistry to advanced applications. Phys Chem Chem Phys 2013; 15:10580-611. [DOI: 10.1039/c3cp50620g] [Citation(s) in RCA: 271] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|