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Lee S, Moon H, Kim J, Ryu S, Park SM, Yoon DK. On-Demand Crack Formation on DNA Film via Organic Solvent-Induced Dehydration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2314374. [PMID: 38490809 DOI: 10.1002/adma.202314374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/05/2024] [Indexed: 03/17/2024]
Abstract
Crack is found on the soil when severe drought comes, which inspires the idea to rationalize patterning applications using dried deoxyribonucleic acid (DNA) film. DNA is one of the massively produced biomaterials in nature, showing the lyotropic liquid crystal (LC) phase in highly concentrated conditions. DNA nanostructures in the hydrated condition can be orientation controlled, which can be extended to make dryinginduced cracks. The controlled crack generation in oriented DNA films by inducing mechanical fracture through organic solvent-induced dehydration (OSID) using tetrahydrofuran (THF) is explored. The corresponding simulations show a strong correlation between the long axis of DNA due to the shrinkage during the dehydration and in the direction of crack propagation. The cracks are controlled by simple brushing and a 3D printing method. This facile way of aligning cracks will be used in potential patterning applications.
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Affiliation(s)
- Soeun Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hyeonbin Moon
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Juri Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Seunghwa Ryu
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Soon Mo Park
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Department of Chemical and Biomolecular Engineering, Cornell University, Ithaca, 14853, USA
| | - Dong Ki Yoon
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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2
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Meng Y, Zhang J, Li B, Li L, Wang Q, Guo W. Periodic fracture behaviour of nanomembranes. MATERIALS HORIZONS 2023; 10:3135-3139. [PMID: 37221900 DOI: 10.1039/d3mh00422h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Fracture control in membranes is highly desirable in nano-technology, but is a great challenge because of the 'multi-scale' complexity of fracture initiation and propagation. Here, we devise a method that can controllably direct fractures in stiff nanomembranes, realized by 90° peeling of the nanomembrane overlaid on a soft film, i.e., a stiff/soft bilayer, from a substrate underneath. The peeling allows the stiff membrane to be creased into a soft film periodically in the bending region and fractured along the unique bottom line of the crease, i.e, the fracture route is strictly straight and periodic. The facture period is tunable, because the surface perimeter of the creases is determined by the thickness and modulus of the stiff membranes. This is a new kind of fracture behavior of stiff membranes, which is unique to stiff/soft bilayers but universally exists in such systems, promising a new generation of technology for cutting nanomembranes.
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Affiliation(s)
- Yancheng Meng
- Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education, State Key Laboratory of Mechanics and Control of Mechanical Structures, Frontier Science Institute of Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
| | - Jianqiang Zhang
- Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education, State Key Laboratory of Mechanics and Control of Mechanical Structures, Frontier Science Institute of Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
| | - Baowen Li
- Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education, State Key Laboratory of Mechanics and Control of Mechanical Structures, Frontier Science Institute of Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
| | - Luxian Li
- Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education, State Key Laboratory of Mechanics and Control of Mechanical Structures, Frontier Science Institute of Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
| | - Qin Wang
- Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education, State Key Laboratory of Mechanics and Control of Mechanical Structures, Frontier Science Institute of Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
| | - Wanlin Guo
- Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education, State Key Laboratory of Mechanics and Control of Mechanical Structures, Frontier Science Institute of Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
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3
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Yang BA, da Rocha AM, Newton I, Shcherbina A, Wong SW, Fraczek PM, Larouche JA, Hiraki HL, Baker BM, Shin JW, Takayama S, Thouless MD, Aguilar CA. Manipulation of the nucleoscaffold potentiates cellular reprogramming kinetics. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.12.532246. [PMID: 36993714 PMCID: PMC10055010 DOI: 10.1101/2023.03.12.532246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Somatic cell fate is an outcome set by the activities of specific transcription factors and the chromatin landscape and is maintained by gene silencing of alternate cell fates through physical interactions with the nuclear scaffold. Here, we evaluate the role of the nuclear scaffold as a guardian of cell fate in human fibroblasts by comparing the effects of transient loss (knockdown) and mutation (progeria) of functional Lamin A/C, a core component of the nuclear scaffold. We observed that Lamin A/C deficiency or mutation disrupts nuclear morphology, heterochromatin levels, and increases access to DNA in lamina-associated domains. Changes in Lamin A/C were also found to impact the mechanical properties of the nucleus when measured by a microfluidic cellular squeezing device. We also show that transient loss of Lamin A/C accelerates the kinetics of cellular reprogramming to pluripotency through opening of previously silenced heterochromatin domains while genetic mutation of Lamin A/C into progerin induces a senescent phenotype that inhibits the induction of reprogramming genes. Our results highlight the physical role of the nuclear scaffold in safeguarding cellular fate.
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Affiliation(s)
- Benjamin A. Yang
- Dept. of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Isabel Newton
- Dept. of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Anna Shcherbina
- Dept. of Biomedical Informatics, Stanford University, Palo Alto, CA 94305, USA
| | - Sing-Wan Wong
- Dept. of Pharmacology and Biomedical Engineering, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Paula M. Fraczek
- Dept. of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jacqueline A. Larouche
- Dept. of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Harrison L. Hiraki
- Dept. of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Brendon M. Baker
- Dept. of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jae-Won Shin
- Dept. of Pharmacology and Biomedical Engineering, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Shuichi Takayama
- Wallace Coulter Dept. of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332
| | - M. D. Thouless
- Dept. of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Dept. of Materials Science & Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Carlos A. Aguilar
- Dept. of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- Program in Cellular and Molecular Biology, University of Michigan, Ann Arbor, MI 48109, USA
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4
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Chai Z, Childress A, Busnaina AA. Directed Assembly of Nanomaterials for Making Nanoscale Devices and Structures: Mechanisms and Applications. ACS NANO 2022; 16:17641-17686. [PMID: 36269234 PMCID: PMC9706815 DOI: 10.1021/acsnano.2c07910] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/06/2022] [Indexed: 05/19/2023]
Abstract
Nanofabrication has been utilized to manufacture one-, two-, and three-dimensional functional nanostructures for applications such as electronics, sensors, and photonic devices. Although conventional silicon-based nanofabrication (top-down approach) has developed into a technique with extremely high precision and integration density, nanofabrication based on directed assembly (bottom-up approach) is attracting more interest recently owing to its low cost and the advantages of additive manufacturing. Directed assembly is a process that utilizes external fields to directly interact with nanoelements (nanoparticles, 2D nanomaterials, nanotubes, nanowires, etc.) and drive the nanoelements to site-selectively assemble in patterned areas on substrates to form functional structures. Directed assembly processes can be divided into four different categories depending on the external fields: electric field-directed assembly, fluidic flow-directed assembly, magnetic field-directed assembly, and optical field-directed assembly. In this review, we summarize recent progress utilizing these four processes and address how these directed assembly processes harness the external fields, the underlying mechanism of how the external fields interact with the nanoelements, and the advantages and drawbacks of utilizing each method. Finally, we discuss applications made using directed assembly and provide a perspective on the future developments and challenges.
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Affiliation(s)
- Zhimin Chai
- State
Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing100084, China
- NSF
Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing
(CHN), Northeastern University, Boston, Massachusetts02115, United States
| | - Anthony Childress
- NSF
Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing
(CHN), Northeastern University, Boston, Massachusetts02115, United States
| | - Ahmed A. Busnaina
- NSF
Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing
(CHN), Northeastern University, Boston, Massachusetts02115, United States
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5
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Yu S, Ma L, He L, Li L, Ni Y. Ordered ring-shaped cracks induced by indentation in metal films on soft elastic substrates. Phys Rev E 2020; 102:022801. [PMID: 32942362 DOI: 10.1103/physreve.102.022801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 07/14/2020] [Indexed: 11/07/2022]
Abstract
Ordered crack patterns contain plentiful physical mechanisms and are useful for technological applications such as lithography, template, and biomimicry. Here we report on ordered multiple ring-shaped cracks induced by indentation in metal films on soft elastic polydimethylsiloxane (PDMS) substrates. It is shown that the indentation triggers the deformation of PDMS substrate and generates a radial tensile stress in the film, leading to the formation of ring-shaped cracks with a nearly uniform spacing. The morphological characteristics and evolution behaviors of the multiple ring-shaped cracks are revealed by optical microscopy, atomic force microscopy, and scanning electron microscopy. Their formation mechanisms are discussed by theoretical analysis based on the fracture mechanics. The report in this work can promote better understanding of the indentation-induced stress anisotropy and mode competition in rigid-film-soft-substrate systems and provide a facile strategy to control the crack patterns by simple mechanical loading.
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Affiliation(s)
- Senjiang Yu
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, People's Republic of China
| | - Long Ma
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Linghui He
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Lingwei Li
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, People's Republic of China
| | - Yong Ni
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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6
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Datta LP, Manchineella S, Govindaraju T. Biomolecules-derived biomaterials. Biomaterials 2020; 230:119633. [DOI: 10.1016/j.biomaterials.2019.119633] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 12/22/2022]
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7
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Embedding topography enables fracture guidance in soft solids. Sci Rep 2019; 9:13493. [PMID: 31530891 PMCID: PMC6748918 DOI: 10.1038/s41598-019-49986-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 08/16/2019] [Indexed: 11/08/2022] Open
Abstract
The natural topographical microchannels in human skin have recently been shown to be capable of guiding propagating cracks. In this article we examine the ability to guide fracture by incorporating similar topographical features into both single, and dual layer elastomer membranes that exhibit uniform thickness. In single layer membranes, crack guidance is achieved by minimizing the nadir thickness of incorporated v-shaped channels, maximizing the release of localized strain energy. In dual layer membranes, crack guidance along embedded channels is achieved via interfacial delamination, which requires less energy to create a new surface than molecular debonding. In both membrane types, guided crack growth is only temporary. However, utilizing multiple embedded channels, non-contiguous crack control can be maintained at angles up to 45° from the mode I fracture condition. The ability to control and deflect fracture holds great potential for improving the robustness and lifespan of flexible electronics and stretchable sensors.
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8
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Park K, Woo MA, Lim JA, Kim YR, Choi SW, Lim MC. In situ synthesis of directional gold nanoparticle arrays along ridge cracks of PDMS wrinkles. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.08.075] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Liu P, Liu AT, Kozawa D, Dong J, Yang JF, Koman VB, Saccone M, Wang S, Son Y, Wong MH, Strano MS. Autoperforation of 2D materials for generating two-terminal memristive Janus particles. NATURE MATERIALS 2018; 17:1005-1012. [PMID: 30353088 DOI: 10.1038/s41563-018-0197-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 09/17/2018] [Indexed: 06/08/2023]
Abstract
Graphene and other two-dimensional materials possess desirable mechanical, electrical and chemical properties for incorporation into or onto colloidal particles, potentially granting them unique electronic functions. However, this application has not yet been realized, because conventional top-down lithography scales poorly for producing colloidal solutions. Here, we develop an 'autoperforation' technique that provides a means of spontaneous assembly for surfaces composed of two-dimensional molecular scaffolds. Chemical vapour deposited two-dimensional sheets can autoperforate into circular envelopes when sandwiching a microprinted polymer composite disk of nanoparticle ink, allowing liftoff into solution and simultaneous assembly. The resulting colloidal microparticles have two independently addressable, external Janus faces that we show can function as an intraparticle array of vertically aligned, two-terminal electronic devices. Such particles demonstrate remarkable chemical and mechanical stability and form the basis of particulate electronic devices capable of collecting and storing information about their surroundings, extending nanoelectronics into previously inaccessible environments.
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Affiliation(s)
- Pingwei Liu
- State Key Lab of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Albert Tianxiang Liu
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Daichi Kozawa
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Juyao Dong
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Jing Fan Yang
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Volodymyr B Koman
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Max Saccone
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Song Wang
- State Key Lab of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Youngwoo Son
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Min Hao Wong
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Michael S Strano
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
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10
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Deuerling S, Kugler S, Klotz M, Zollfrank C, Van Opdenbosch D. A Perspective on Bio-Mediated Material Structuring. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1703656. [PMID: 29178190 DOI: 10.1002/adma.201703656] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 09/22/2017] [Indexed: 06/07/2023]
Abstract
Bioinspiration, biomorphy, biomimicry, biomimetics, bionics, and biotemplating are terms used to describe the fabrication of materials or, more generally, systems to solve technological problems by abstracting, emulating, using, or transferring structures from biological paradigms. Herein, a brief overview of how the different terminologies are being typically applied is provided. It is proposed that there is a rich field of research that can be expanded by utilizing various novel approaches for the guidance of living organisms for "bio-mediated" material structuring purposes. As examples of contact-based or contact-free guidance, such as substrate patterning, the application of light, magnetic fields, or chemical gradients, potentially interesting methods of creating hierarchically structured monolithic engineering materials, using live patterned biomass, biofilms, or extracellular substances as scaffolds, are presented. The potential advantages of such materials are discussed, and examples of live self-patterning of materials are given.
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Affiliation(s)
- Steffi Deuerling
- Technical University of Munich Chair of Biogenic Polymers, Schulgasse 16, D-94315, Straubing, Germany
| | - Sabine Kugler
- Technical University of Munich Chair of Biogenic Polymers, Schulgasse 16, D-94315, Straubing, Germany
| | - Moritz Klotz
- Technical University of Munich Chair of Biogenic Polymers, Schulgasse 16, D-94315, Straubing, Germany
| | - Cordt Zollfrank
- Technical University of Munich Chair of Biogenic Polymers, Schulgasse 16, D-94315, Straubing, Germany
| | - Daniel Van Opdenbosch
- Technical University of Munich Chair of Biogenic Polymers, Schulgasse 16, D-94315, Straubing, Germany
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11
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Wang J, Colson YL, Grinstaff MW. Tension-Activated Delivery of Small Molecules and Proteins from Superhydrophobic Composites. Adv Healthc Mater 2018; 7:e1701096. [PMID: 29280324 PMCID: PMC5968038 DOI: 10.1002/adhm.201701096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 10/23/2017] [Indexed: 12/13/2022]
Abstract
The fabrication and performance of mechanically responsive multilayer superhydrophobic composites are reported. The application of tensile strain triggers the release of small molecules and proteins from these composites, with different tensile strain magnitudes and coating thickness influencing agent release. These mechanoresponsive composites consist of an absorbent drug core surrounded by an electrosprayed superhydrophobic protective coating that limits drug release in the absence of tensile strain. Coating thickness and applied tensile strain control release of chemotherapeutic cisplatin and enzyme β-galactosidase, as measured by atomic absorption and UV-vis spectrophotometry, respectively, with preserved in vitro activity. Such mechanically responsive drug delivery devices, when coupled to existing dynamic mechanical forces in the body or integrated with mechanical medical devices, such as stents, will provide local controlled dosing.
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Affiliation(s)
- Julia Wang
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA, 02215, USA
| | - Yolonda L Colson
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Mark W Grinstaff
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA, 02215, USA
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12
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Adly NY, Hassani H, Tran AQ, Balski M, Yakushenko A, Offenhäusser A, Mayer D, Wolfrum B. Observation of chemically protected polydimethylsiloxane: towards crack-free PDMS. SOFT MATTER 2017; 13:6297-6303. [PMID: 28920620 DOI: 10.1039/c7sm01457k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The current modification of polydimethylsiloxane (PDMS) substrates via oxygen plasma treatment causes surface cracks. Here, we demonstrate a method to prevent crack formation by chemical treatment. Chemical modification renders the surface hydrophilic for several days and is effective in preserving the elasticity of the PDMS surface at the nanoscale level.
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Affiliation(s)
- N Y Adly
- JARA-SOFT, Institute of Complex Systems ICS-8, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
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Chandrasekaran A, Kalashnikov N, Rayes R, Wang C, Spicer J, Moraes C. Thermal scribing to prototype plastic microfluidic devices, applied to study the formation of neutrophil extracellular traps. LAB ON A CHIP 2017; 17:2003-2012. [PMID: 28524191 DOI: 10.1039/c7lc00356k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Innovation in microfluidics-based biological research has been aided by the growing accessibility of versatile microscale fabrication techniques, particularly in rapid prototyping of elastomeric polydimethylsiloxane (PDMS) based devices. However, the use of PDMS presents considerable and often unexpected limitations, particularly in interpreting and validating biological data. To rapidly prototype microfluidic culture systems in conventional plastics commonly used in cell culture, we developed 'thermal scribing', a one-step micromachining technique in which thermoplastics are locally patterned by a heated tip, moving in user-controlled patterns. To demonstrate and study the thermal scribing process, we modified an inexpensive desktop hobby craft cutter with a soldering iron to scribe micropatterns on polystyrene substrates. The thermal scribing technique is useful for creating a variety of channel profiles and geometries, which cannot be readily achieved using other microfabrication approaches. The entire fabrication process, including post-processing operations needed to fabricate devices, can be completed within a few hours without the need for skilled engineering expertise or expensive equipment. We apply this technique to demonstrate that induction of functional neutrophil extracellular traps (NETs) can be significantly enhanced over previous studies, when experiments are conducted in microfluidic channels prototyped in an appropriate material. These results ultimately inform the design of neutrophil culture systems and suggest that the inherent ability of neutrophils to form NETs may have been significantly under-reported.
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14
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Ha D, Hong J, Shin H, Kim T. Unconventional micro-/nanofabrication technologies for hybrid-scale lab-on-a-chip. LAB ON A CHIP 2016; 16:4296-4312. [PMID: 27761529 DOI: 10.1039/c6lc01058j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Micro-/nanofabrication-based lab-on-a-chip (LOC) technologies have recently been substantially advanced and have become widely used in various inter-/multidisciplinary research fields, including biological, (bio-)chemical, and biomedical fields. However, such hybrid-scale LOC devices are typically fabricated using microfabrication and nanofabrication processes in series, resulting in increased cost and time and low throughput issues. In this review, after briefly introducing the conventional micro-/nanofabrication technologies, we focus on unconventional micro-/nanofabrication technologies that allow us to produce either in situ micro-/nanoscale structures or master molds for additional replication processes to easily and conveniently create novel LOC devices with micro- or nanofluidic channel networks. In particular, microfabrication methods based on crack-assisted photolithography and carbon-microelectromechanical systems (C-MEMS) are described in detail because of their superior features from the viewpoint of the throughput, batch fabrication process, and mixed-scale channels/structures. In parallel with previously reported articles on conventional micro-/nanofabrication technologies, our review of unconventional micro-/nanofabrication technologies will provide a useful and practical fabrication guideline for future hybrid-scale LOC devices.
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Affiliation(s)
- Dogyeong Ha
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea.
| | - Jisoo Hong
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea.
| | - Heungjoo Shin
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea.
| | - Taesung Kim
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea.
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15
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Wooh S, Lee S, Lee Y, Ryu JH, Lee WB, Yoon H, Char K. Isolated Mesoporous Microstructures Prepared by Stress Localization-Induced Crack Manipulation. ACS NANO 2016; 10:9259-9266. [PMID: 27617907 DOI: 10.1021/acsnano.6b03044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cracks observed in brittle materials are mostly regarded as defects or failures. However, they can be a valuable tool when implemented in a controlled way. Here, we introduce a strategy to control the crack propagation of mesoporous micropatterns (prisms and pyramids), which leads to the isolation of well-defined microstructures. Mesoporous micropatterns were fabricated by the soft imprinting technique with wet TiO2 nanoparticle (NP) pastes, followed by sintering to remove organic components. Since the volume of the paste significantly shrinks during the sintering step, stress is localized at the edge of micropatterns, in good agreement with finite element method simulations, creating well-defined cracks and their propagation. It was demonstrated that the degree of stress localization is determined by the thickness of residual layers, NP size, and heating rate. After controlled crack propagation and delamination of microparticles from the substrates, mesoporous microwires and microparticles were successfully produced and functionalized from the isolated mesoporous prisms and pyramids. The method proposed in this study for controlled crack manipulation and delamination opens a door for straightforward and economical fabrication of well-defined mesoporous microparticles.
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Affiliation(s)
- Sanghyuk Wooh
- The National Creative Research Initiative Center for Intelligent Hybrids, The World Class University Program for Chemical Convergence for Energy and Environment, School of Chemical and Biological Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Soojin Lee
- The National Creative Research Initiative Center for Intelligent Hybrids, The World Class University Program for Chemical Convergence for Energy and Environment, School of Chemical and Biological Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Yunchan Lee
- The National Creative Research Initiative Center for Intelligent Hybrids, The World Class University Program for Chemical Convergence for Energy and Environment, School of Chemical and Biological Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Ji Ho Ryu
- School of Chemical and Biological Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Won Bo Lee
- School of Chemical and Biological Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Hyunsik Yoon
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science & Technology , Seoul 01811, Republic of Korea
| | - Kookheon Char
- The National Creative Research Initiative Center for Intelligent Hybrids, The World Class University Program for Chemical Convergence for Energy and Environment, School of Chemical and Biological Engineering, Seoul National University , Seoul 08826, Republic of Korea
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16
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Polywka A, Stegers L, Krauledat O, Riedl T, Jakob T, Görrn P. Controlled Mechanical Cracking of Metal Films Deposited on Polydimethylsiloxane (PDMS). NANOMATERIALS 2016; 6:nano6090168. [PMID: 28335296 PMCID: PMC5224633 DOI: 10.3390/nano6090168] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 08/30/2016] [Accepted: 09/07/2016] [Indexed: 12/26/2022]
Abstract
Stretchable large area electronics conform to arbitrarily-shaped 3D surfaces and enables comfortable contact to the human skin and other biological tissue. There are approaches allowing for large area thin films to be stretched by tens of percent without cracking. The approach presented here does not prevent cracking, rather it aims to precisely control the crack positions and their orientation. For this purpose, the polydimethylsiloxane (PDMS) is hardened by exposure to ultraviolet radiation (172 nm) through an exposure mask. Only well-defined patterns are kept untreated. With these soft islands cracks at the hardened surface can be controlled in terms of starting position, direction and end position. This approach is first investigated at the hardened PDMS surface itself. It is then applied to conductive silver films deposited from the liquid phase. It is found that statistical (uncontrolled) cracking of the silver films can be avoided at strain below 35%. This enables metal interconnects to be integrated into stretchable networks. The combination of controlled cracks with wrinkling enables interconnects that are stretchable in arbitrary and changing directions. The deposition and patterning does not involve vacuum processing, photolithography, or solvents.
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Affiliation(s)
- Andreas Polywka
- Chair of Large Area Optoelectronics, University of Wuppertal, Rainer-Gruenter-Str. 21, Wuppertal 42119, Germany.
| | - Luca Stegers
- Chair of Large Area Optoelectronics, University of Wuppertal, Rainer-Gruenter-Str. 21, Wuppertal 42119, Germany.
| | - Oliver Krauledat
- Chair of Large Area Optoelectronics, University of Wuppertal, Rainer-Gruenter-Str. 21, Wuppertal 42119, Germany.
| | - Thomas Riedl
- Institute of Electronic Devices, University of Wuppertal, Rainer-Gruenter-Str. 21, Wuppertal 42119, Germany.
| | - Timo Jakob
- Chair of Large Area Optoelectronics, University of Wuppertal, Rainer-Gruenter-Str. 21, Wuppertal 42119, Germany.
| | - Patrick Görrn
- Chair of Large Area Optoelectronics, University of Wuppertal, Rainer-Gruenter-Str. 21, Wuppertal 42119, Germany.
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17
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Kim M, Kim DJ, Ha D, Kim T. Cracking-assisted fabrication of nanoscale patterns for micro/nanotechnological applications. NANOSCALE 2016; 8:9461-79. [PMID: 26691345 DOI: 10.1039/c5nr06266g] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Cracks are frequently observed in daily life, but they are rarely welcome and are considered as a material failure mode. Interestingly, cracks cause critical problems in various micro/nanofabrication processes such as colloidal assembly, thin film deposition, and even standard photolithography because they are hard to avoid or control. However, increasing attention has been given recently to control and use cracks as a facile, low-cost strategy for producing highly ordered nanopatterns. Specifically, cracking is the breakage of molecular bonds and occurs simultaneously over a large area, enabling fabrication of nanoscale patterns at both high resolution and high throughput, which are difficult to obtain simultaneously using conventional nanofabrication techniques. In this review, we discuss various cracking-assisted nanofabrication techniques, referred to as crack lithography, and summarize the fabrication principles, procedures, and characteristics of the crack patterns such as their position, direction, and dimensions. First, we categorize crack lithography techniques into three technical development levels according to the directional freedom of the crack patterns: randomly oriented, unidirectional, or multidirectional. Then, we describe a wide range of novel practical devices fabricated by crack lithography, including bioassay platforms, nanofluidic devices, nanowire sensors, and even biomimetic mechanosensors.
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Affiliation(s)
- Minseok Kim
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulsan, 689-798, Republic of Korea.
| | - Dong-Joo Kim
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulsan, 689-798, Republic of Korea.
| | - Dogyeong Ha
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulsan, 689-798, Republic of Korea.
| | - Taesung Kim
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulsan, 689-798, Republic of Korea. and Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulsan, 689-798, Republic of Korea
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18
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Chen C, Bang S, Cho Y, Lee S, Lee I, Zhang S, Noh I. Research trends in biomimetic medical materials for tissue engineering: 3D bioprinting, surface modification, nano/micro-technology and clinical aspects in tissue engineering of cartilage and bone. Biomater Res 2016; 20:10. [PMID: 27148455 PMCID: PMC4855474 DOI: 10.1186/s40824-016-0057-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 04/07/2016] [Indexed: 11/13/2022] Open
Abstract
This review discusses about biomimetic medical materials for tissue engineering of bone and cartilage, after previous scientific commentary of the invitation-based, Korea-China joint symposium on biomimetic medical materials, which was held in Seoul, Korea, from October 22 to 26, 2015. The contents of this review were evolved from the presentations of that symposium. Four topics of biomimetic medical materials were discussed from different research groups here: 1) 3D bioprinting medical materials, 2) nano/micro-technology, 3) surface modification of biomaterials for their interactions with cells and 4) clinical aspects of biomaterials for cartilage focusing on cells, scaffolds and cytokines.
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Affiliation(s)
- Cen Chen
- />Bio-X Center, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
| | - Sumi Bang
- />Seoul National University of Science and Technology, 232 Gongneung-roNowongu, Seoul, 11811 Republic of Korea
| | - Younghak Cho
- />Department of Mechanical System Design Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 11811 Republic of Korea
| | - Sahnghoon Lee
- />Department of Orthopaedic Surgery, Seoul National University College of Medicine/Seoul National University Hospital, Seoul, 110-799 Republic of Korea
| | - Inseop Lee
- />Bio-X Center, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
- />Institute of Natural Sciences, Yonsei University, Seoul, 03722 Korea
| | - ShengMin Zhang
- />Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Insup Noh
- />Seoul National University of Science and Technology, 232 Gongneung-roNowongu, Seoul, 11811 Republic of Korea
- />Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811 Republic of Korea
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19
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Wang J, Kaplan JA, Colson YL, Grinstaff MW. Stretch-Induced Drug Delivery from Superhydrophobic Polymer Composites: Use of Crack Propagation Failure Modes for Controlling Release Rates. Angew Chem Int Ed Engl 2016; 55:2796-800. [PMID: 26804182 PMCID: PMC4899983 DOI: 10.1002/anie.201511052] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Indexed: 12/14/2022]
Abstract
The concept of using crack propagation in polymeric materials to control drug release and its first demonstration are reported. The composite drug delivery system consists of highly-textured superhydrophobic electrosprayed microparticle coatings, composed of biodegradable and biocompatible polymers poly(caprolactone) and poly(glycerol monostearate carbonate-co-caprolactone), and a cellulose/polyester core. The release of entrapped agents is controlled by the magnitude of applied strain, resulting in a graded response from water infiltration through the propagating patterned cracks in the coating. Strain-dependent delivery of the anticancer agents cisplatin and 7-ethyl-10-hydroxycamptothecin to esophageal cancer cells (OE33) in vitro is observed. Finally the device is integrated with an esophageal stent to demonstrate delivery of fluorescein diacetate, using applied tension, to an ex vivo esophagus.
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Affiliation(s)
- Julia Wang
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA, 02215, USA
| | - Jonah A Kaplan
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA, 02215, USA
| | - Yolonda L Colson
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Mark W Grinstaff
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA, 02215, USA.
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20
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Wang J, Kaplan JA, Colson YL, Grinstaff MW. Stretch‐Induced Drug Delivery from Superhydrophobic Polymer Composites: Use of Crack Propagation Failure Modes for Controlling Release Rates. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Julia Wang
- Departments of Biomedical Engineering and Chemistry Boston University Boston MA 02215 USA
| | - Jonah A. Kaplan
- Departments of Biomedical Engineering and Chemistry Boston University Boston MA 02215 USA
| | - Yolonda L. Colson
- Division of Thoracic Surgery Department of Surgery Brigham and Women's Hospital Boston MA 02115 USA
| | - Mark W. Grinstaff
- Departments of Biomedical Engineering and Chemistry Boston University Boston MA 02215 USA
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21
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Suh YD, Yeo J, Lee H, Hong S, Kwon J, Kim K, Ko SH. Control and Manipulation of Nano Cracks Mimicking Optical Wave. Sci Rep 2015; 5:17292. [PMID: 26612107 PMCID: PMC4661517 DOI: 10.1038/srep17292] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 10/28/2015] [Indexed: 11/09/2022] Open
Abstract
Generally, a fracture is considered as an uncontrollable thus useless phenomenon due to its highly random nature. The aim of this study is to investigate highly ordered cracks such as oscillatory cracks and to manipulate via elaborate control of mechanical properties of the cracking medium including thickness, geometry, and elastic mismatch. Specific thin film with micro-sized notches was fabricated on a silicon based substrate in order to controllably generate self-propagating cracks in large area. Interestingly, various nano-cracks behaved similar to optical wave including refraction, total internal reflection and evanescent wave. This novel phenomena of controlled cracking was used to fabricate sophisticated nano/micro patterns in large area which cannot be obtained even with conventional nanofabrication methods. We also have showed that the cracks are directly implementable into a nano/micro-channel application since the cracks naturally have a form of channel-like shape.
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Affiliation(s)
- Young D Suh
- Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea (R.O.K)
| | - Junyeob Yeo
- Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea (R.O.K).,Department of Mechanical Engineering, University of California, Berkeley, CA 94720-1740, USA
| | - Habeom Lee
- Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea (R.O.K)
| | - Sukjoon Hong
- Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea (R.O.K)
| | - Jinhyeong Kwon
- Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea (R.O.K)
| | - Kyunkyu Kim
- Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea (R.O.K)
| | - Seung Hwan Ko
- Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea (R.O.K)
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22
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Trinadh M, Govindaraj K, Santosh V, Dhayal M, Sainath AVS. Synthesis of PEO-based di-block glycopolymers at various pendant spacer lengths of glucose moiety and their in-vitrobiocompatibility with MC3T3 osteoblast cells. Des Monomers Polym 2015. [DOI: 10.1080/15685551.2015.1092009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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23
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Kim BC, Moraes C, Huang J, Matsuoka T, Thouless M, Takayama S. Fracture-based fabrication of normally closed, adjustable, and fully reversible microscale fluidic channels. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:4020-4029. [PMID: 24942855 PMCID: PMC4192030 DOI: 10.1002/smll.201400147] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 04/30/2014] [Indexed: 05/25/2023]
Abstract
Adjustable fluidic structures play an important role in microfluidic systems. Fracture of multilayered materials under applied tension has been previously demonstrated as a convenient, simple, and inexpensive approach to fabricate nanoscale adjustable structures; here, it is demonstrated how to extend this concept to the microscale. This is achieved by a novel pairing of materials that leverages fracture mechanics to limit crack formation to a specified region, allowing to create size-controllable and adjustable microfluidic structures. This technique can be used to fabricate "normally closed" microfluidic channels that are completely reversible, a feature that is challenging to achieve in conventional systems without careful engineering controls. The adjustable microfluidic channels are then applied to mechanically lyse single cells, and subsequently manipulate the released nuclear chromatin, creating new possibilities for epigenetic analysis of single cells. This simple, versatile, and robust technology provides an easily accessible pathway to construct adjustable microfluidic structures, which will be useful in developing complex assays and experiments even in resource-limited settings.
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Affiliation(s)
- Byoung Choul Kim
- Department of Biomedical Engineering, College of Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA
- Macromolecular Science and Engineering Center, College of Engineering, University of Michigan, 2300 Hayward St., Ann Arbor, MI 48109, USA
| | - Christopher Moraes
- Department of Biomedical Engineering, College of Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA
| | - Jiexi Huang
- Department of Mechanical Engineering, College of Engineering, University of Michigan, 2350 Hayward St., Ann Arbor, MI 48109, USA
| | - Toshiki Matsuoka
- Department of Biomedical Engineering, College of Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA
| | - M.D. Thouless
- Department of Mechanical Engineering, College of Engineering, University of Michigan, 2350 Hayward St., Ann Arbor, MI 48109, USA
- Department of Materials Science & Engineering, College of Engineering, University of Michigan, 2300 Hayward St., Ann Arbor, MI 48109, USA
| | - Shuichi Takayama
- Department of Biomedical Engineering, College of Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA
- Macromolecular Science and Engineering Center, College of Engineering, University of Michigan, 2300 Hayward St., Ann Arbor, MI 48109, USA
- Division of Nano-Bio and Chemical Engineering WCU Project, UNIST, Ulsan, Republic of Korea
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24
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Moraes C, Kim BC, Zhu X, Mills KL, Dixon AR, Thouless, Takayama S. Defined topologically-complex protein matrices to manipulate cell shape via three-dimensional fiber-like patterns. LAB ON A CHIP 2014; 14:2191-201. [PMID: 24632936 PMCID: PMC4041804 DOI: 10.1039/c4lc00122b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Culturing cells in three-dimensional (3D) environments has been shown to significantly influence cell function, and may provide a more physiologically relevant environment within which to study the behavior of specific cell types. 3D tissues typically present a topologically complex fibrous adhesive environment, which is technically challenging to replicate in a controlled manner. Micropatterning technologies have provided significant insights into cell-biomaterial interactions, and can be used to create fiber-like adhesive structures, but are typically limited to flat culture systems; the methods are difficult to apply to topologically-complex surfaces. In this work, we utilize crack formation in multilayered microfabricated materials under applied strain to rapidly generate well-controlled and topologically complex 'fiber-like' adhesive protein patterns, capable of supporting cell culture and controlling cell shape on three-dimensional patterns. We first demonstrate that the features of the generated adhesive environments such as width, spacing and topology can be controlled, and that these factors influence cell morphology. The patterning technique is then applied to examine the influence of fiber structure on the nuclear morphology and actin cytoskeletal structure of cells cultured in a nanofibrous biomaterial matrix.
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Affiliation(s)
- Christopher Moraes
- Department of Biomedical Engineering, College of Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI 48109, USA
| | - Byoung Choul Kim
- Department of Biomedical Engineering, College of Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI 48109, USA
- Macromolecular Science and Engineering Center, College of Engineering, University of Michigan, 2300 Hayward St., Ann Arbor, MI 48109, USA
| | - Xiaoyue Zhu
- Department of Biomedical Engineering, College of Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA
| | - Kristen L. Mills
- Department of Mechanical Engineering, College of Engineering, University of Michigan, 2350 Hayward St., Ann Arbor, MI 48109, USA
| | - Angela R. Dixon
- Department of Biomedical Engineering, College of Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA
| | - Thouless
- Department of Mechanical Engineering, College of Engineering, University of Michigan, 2350 Hayward St., Ann Arbor, MI 48109, USA
- Department of Materials Science & Engineering, College of Engineering, University of Michigan, 2300 Hayward St., Ann Arbor, MI 48109, USA
| | - Shuichi Takayama
- Department of Biomedical Engineering, College of Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI 48109, USA
- Macromolecular Science and Engineering Center, College of Engineering, University of Michigan, 2300 Hayward St., Ann Arbor, MI 48109, USA
- Department of Materials Science & Engineering, College of Engineering, University of Michigan, 2300 Hayward St., Ann Arbor, MI 48109, USA
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