1
|
Du Z, Qiao F, Tong L, Zhang W, Mou X, Zhao X, Maitz MF, Wang H, Huang N, Yang Z. Mimicking Mytilus edulis foot protein: A versatile strategy for robust biomedical coatings. Innovation (N Y) 2024; 5:100671. [PMID: 39114479 PMCID: PMC11305295 DOI: 10.1016/j.xinn.2024.100671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 06/28/2024] [Indexed: 08/10/2024] Open
Abstract
Universal coatings with versatile surface adhesion, good mechanochemical robustness, and the capacity for secondary modification are of great scientific interest. However, incorporating these advantages into a system is still a great challenge. Here, we report a series of catechol-decorated polyallylamines (CPAs), denoted as pseudo-Mytilus edulis foot protein 5 (pseudo-Mefp-5), that mimic not only the catechol and amine groups but also the backbone of Mefp-5. CPAs can fabricate highly adhesive, robust, multifunctional polyCPA (PCPA) coatings based on synergetic catechol-polyamine chemistry as universal building blocks. Due to the interpenetrating entangled network architectures, these coatings exhibit high chemical robustness against harsh conditions (HCl, pH 1; NaOH, pH 14; H2O2, 30%), good mechanical robustness, and wear resistance. In addition, PCPA coatings provide abundant grafting sites, enabling the fabrication of various functional surfaces through secondary modification. Furthermore, the versatility, multifaceted robustness, and scalability of PCPA coatings indicate their great potential for surface engineering, especially for withstanding harsh conditions in multipurpose biomedical applications.
Collapse
Affiliation(s)
- Zeyu Du
- School of Materials Science and Engineering, Department of Cardiology, Third People’s Hospital of Chengdu Affiliated with Southwest Jiaotong University, Southwest Jiaotong University, Chengdu 610031, China
- Dongguan Key Laboratory of Smart Biomaterials and Regenerative Medicine, The Tenth Affiliated Hospital of Southern Medical University, Dongguan 523059, China
| | - Feng Qiao
- School of Materials Science and Engineering, Department of Cardiology, Third People’s Hospital of Chengdu Affiliated with Southwest Jiaotong University, Southwest Jiaotong University, Chengdu 610031, China
| | - Liping Tong
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Wentai Zhang
- Dongguan Key Laboratory of Smart Biomaterials and Regenerative Medicine, The Tenth Affiliated Hospital of Southern Medical University, Dongguan 523059, China
| | - Xiaohui Mou
- School of Materials Science and Engineering, Department of Cardiology, Third People’s Hospital of Chengdu Affiliated with Southwest Jiaotong University, Southwest Jiaotong University, Chengdu 610031, China
- Dongguan Key Laboratory of Smart Biomaterials and Regenerative Medicine, The Tenth Affiliated Hospital of Southern Medical University, Dongguan 523059, China
| | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Manfred F. Maitz
- School of Materials Science and Engineering, Department of Cardiology, Third People’s Hospital of Chengdu Affiliated with Southwest Jiaotong University, Southwest Jiaotong University, Chengdu 610031, China
- Max Bergmann Center of Biomaterials Dresden, Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden, Germany
| | - Huaiyu Wang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- The Key Laboratory of Biomedical Imaging Science and System, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Nan Huang
- Dongguan Key Laboratory of Smart Biomaterials and Regenerative Medicine, The Tenth Affiliated Hospital of Southern Medical University, Dongguan 523059, China
- GuangZhou Nanchuang Mount Everest Company for Medical Science and Technology, Guangzhou 510670, China
| | - Zhilu Yang
- School of Materials Science and Engineering, Department of Cardiology, Third People’s Hospital of Chengdu Affiliated with Southwest Jiaotong University, Southwest Jiaotong University, Chengdu 610031, China
- Dongguan Key Laboratory of Smart Biomaterials and Regenerative Medicine, The Tenth Affiliated Hospital of Southern Medical University, Dongguan 523059, China
| |
Collapse
|
2
|
Jeong H, Park G, Jeon J, Park SS. Fabricating Large-Area Thin Films of 2D Conductive Metal-Organic Frameworks. Acc Chem Res 2024. [PMID: 39073835 DOI: 10.1021/acs.accounts.4c00292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
ConspectusRecent years have witnessed significant interest in two-dimensional metal-organic frameworks (MOFs) due to their unique properties and promising applications across various fields. These materials offer distinct advantages, including high porosity and excellent charge transport properties. Their tunability allows precise control over various factors, including the electronic structure adjustments and local reactivity modulation, facilitating a wide range of properties and applications, such as material sensing and spin dynamics control. Moreover, the precise crystal structure of 2D MOFs supports rational design and mechanism studies, providing insights into their potential applications and enhancing their utility in various scientific and technological endeavors.To fully unveil the latent capabilities of 2D MOFs and advance their applications across diverse fields, thin film synthesis is crucial. Thin films provide a platform for investigating the intrinsic electrical properties of 2D MOFs with anisotropic structures, enabling the exploration of their unique characteristics comprehensively. Additionally, thin films offer the advantage of minimizing interference at contacts and junctions, thereby enhancing the performance of 2D MOFs for various applications. Furthermore, the properties of thin films can vary with thickness, presenting an opportunity to tailor their characteristics based on specific requirements.In this Account, we present an overview of our research focusing on the synthesis of 2D conductive MOF thin films encompassing two primary methods: chemical vapor deposition and solution processing. The chemical vapor deposition method allows for one-step, all-vapor-phase processes resulting in MOFs with edge-on orientation, controllable film thicknesses ranging from 55 to 662.7 nm, and smooth, homogeneous surfaces. On the other hand, solution-processing introduces a novel MOF, Cu3(HHTATP)2, by reducing interlayer interactions through the addition of pendent Brønsted bases on a ligand, enabling spin coating for thin film synthesis. This method yields a concentrated 2D MOF solution, enabling spin coating for thin film synthesis, where reversible electrical conductivity changes occur through doping with an acid and dedoping with a base. Additionally, we discuss various other synthesis methods, such as interfacial synthesis, layer-by-layer assembly, and microfluidic-assisted synthesis, offering versatile approaches for fabricating large-area thin films with tailored properties. Finally, we address ongoing challenges and potential strategies for further advancement in 2D conductive MOF thin film synthesis. We hope that this Account provides insights for selecting synthesis methods tailored to specific purposes, contributes to the development of varied synthesis techniques, and facilitates the exploration of diverse applications, unlocking the full potential of 2D conductive MOFs for next-generation technologies.
Collapse
Affiliation(s)
- Hyebeen Jeong
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Geunchan Park
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Jaemin Jeon
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Sarah S Park
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
- Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University, Seoul 03722, Republic of Korea
| |
Collapse
|
3
|
Gleason KK. Designing Organic and Hybrid Surfaces and Devices with Initiated Chemical Vapor Deposition (iCVD). ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2306665. [PMID: 37738605 DOI: 10.1002/adma.202306665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 09/05/2023] [Indexed: 09/24/2023]
Abstract
The initiated chemical vapor deposition (iCVD) technique is an all-dry method for designing organic and hybrid polymers. Unlike methods utilizing liquids or line-of-sight arrival, iCVD provides conformal surface modification over intricate geometries. Uniform, high-purity, and pinhole-free iCVD films can be grown with thicknesses ranging from >15 µm to <5 nm. The mild conditions permit damage-free growth directly onto flexible substrates, 2D materials, and liquids. Novel iCVD polymer morphologies include nanostructured surfaces, nanoporosity, and shaped particles. The well-established fundamentals of iCVD facilitate the systematic design and optimization of polymers and copolymers. The functional groups provide fine-tuning of surface energy, surface charge, and responsive behavior. Further reactions of the functional groups in the polymers can yield either surface modification, compositional gradients through the layer thickness, or complete chemical conversion of the bulk film. The iCVD polymers are integrated into multilayer device structures as desired for applications in sensing, electronics, optics, electrochemical energy storage, and biotechnology. For these devices, hybrids offer higher values of refractive index and dielectric constant. Multivinyl monomers typically produce ultrasmooth and pinhole-free and mechanically deformable layers and robust interfaces which are especially promising for electronic skins and wearable optoelectronics.
Collapse
Affiliation(s)
- Karen K Gleason
- Department of Chemical Engineering, MIT, 77 Massachusetts Avenue, Cambridge, MA, 02138, USA
| |
Collapse
|
4
|
Prasath V, Lau KKS. Kinetically Limited Bulk Polymerization of Polymer Thin Films by Initiated Chemical Vapor Deposition. Macromolecules 2023; 56:10111-10118. [PMID: 38161326 PMCID: PMC10753876 DOI: 10.1021/acs.macromol.3c01868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/16/2023] [Accepted: 11/28/2023] [Indexed: 01/03/2024]
Abstract
An experimental study and kinetic model analysis of the initiated chemical vapor deposition (iCVD) of polymer thin films have been performed at saturated monomer vapor conditions. Previous iCVD kinetic studies have focused on subsaturated monomer conditions where polymer deposition kinetics is known to be limited by monomer adsorption. However, iCVD kinetics at saturated conditions have so far not been systematically investigated, and it remains unclear whether the adsorption-limited phenomenon would still apply at saturation, given the abundance of monomer for reaction. To probe this question, a series of depositions of poly(vinylpyrrolidone) (PVP) thin films as a model system were performed by iCVD at substrate temperatures from 10 to 25 °C at both fully saturated (100%) and subsaturated (50%) conditions. While the deposition rates at subsaturated conditions exhibit the expected adsorption-limited behavior, the deposition rates at saturated conditions unexpectedly show two distinct deposition regimes with reaction time: an initial adsorption-limited regime followed by a kinetically limited steady-state regime. In the steady-state regime, the deposition kinetics is found to be thermally activated by raising substrate temperature with an overall activation energy of +86 kJ/mol, which agrees reasonably well with the experimentally determined value of +89 kJ/mol in the literature for bulk PVP polymerization and a mechanistically derived value of +91 kJ/mol based on the bulk free radical polymerization mechanism of PVP. These findings open new operating windows for iCVD polymerization and thin-film growth in which fast polymer deposition can be achieved without substrate cooling that can greatly simplify the iCVD scale-up to roll-to-roll processing and enable iCVD polymerization of highly volatile monomers relevant for diverse applications in biomedicine, smart wearables, and renewable energy.
Collapse
Affiliation(s)
- Varun
S. Prasath
- Department
of Chemical Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
| | - Kenneth K. S. Lau
- Department
of Chemical Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
- Department
of Chemical and Biological Engineering, Drexel University, 3141
Chestnut Street, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
5
|
Chang YM, Wang YS, Chen HY. Controlling Superhydrophobicity on Complex Substrates Based on a Vapor-Phase Sublimation and Deposition Polymerization. ACS APPLIED MATERIALS & INTERFACES 2023; 15:48754-48763. [PMID: 37793161 PMCID: PMC10592315 DOI: 10.1021/acsami.3c06684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 09/21/2023] [Indexed: 10/06/2023]
Abstract
The superhydrophobic properties of material surfaces have attracted significant research and practical development in a wide range of applications. In the present study, a superhydrophobic coating was fabricated using a vapor-phase sublimation and deposition process. This process offers several advantages, including a controllable and tunable superhydrophobic property, a dry and solvent-free process that uses well-defined water/ice templates during fabrication, and a coating technology that is applicable to various substrates, regardless of their dimensions or complex geometric configurations. The fabrication process exploits time-dependent condensation to produce ice templates with a controlled surface morphology and roughness. The templates are sacrificed via vapor sublimation, which results in mass transfer of water vapor out of the system. A second vapor source of a polymer precursor is then introduced to the system, and deposition occurs upon polymerization on the iced templates, replicating the same topologies from the iced templates. The continuation of the co-current sublimation and deposition processes finally renders permanent hierarchical structures of the polymer coatings that combine the native hydrophobic property of the polymer and the structured property by the sacrificed ice templates, achieving a level of superhydrophobicity that is tunable from 90° to 164°. The experiments demonstrated the use of [2,2]paracyclophanes as the starting materials for forming the superhydrophobic coatings of poly(p-xylylenes) on substrate surfaces. In comparison to conventional vapor deposition of poly(p-xylylenes), which resulted in dense thin-film coatings with only a moderate water contact angle of approximately 90°, the reported superhydrophobic coatings and fabrication process can achieve a high water contact angle of 164°. Demonstrations furthermore revealed that the proposed coatings are durable while maintaining superhydrophobicity on various substrates, including an intraocular lens and a cardiovascular stent, even against harsh treatment conditions and varied solution compositions used on the substrates.
Collapse
Affiliation(s)
- Yu-Ming Chang
- Department
of Chemical Engineering, National Taiwan
University, Taipei 10617, Taiwan
| | - Yun-Shan Wang
- Department
of Chemical Engineering, National Taiwan
University, Taipei 10617, Taiwan
| | - Hsien-Yeh Chen
- Department
of Chemical Engineering, National Taiwan
University, Taipei 10617, Taiwan
- Molecular
Imaging Center, National Taiwan University, Taipei 10617, Taiwan
| |
Collapse
|
6
|
Huang S, Villafranca SU, Mehta I, Yosfan O, Hong E, Wang A, Wu N, Wang Q, Rao S. A nanoscale inorganic coating strategy for stabilizing hydrogel neural probes in vivo. J Mater Chem B 2023; 11:7629-7640. [PMID: 37401386 PMCID: PMC10530439 DOI: 10.1039/d3tb00710c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Hydrogels with adaptable optical and mechanical characteristics show considerable promise for light delivery in vivo with neuroengineering applications. However, the unlinked amorphous polymer chains within hydrogels can cause volumetric swelling after water absorption under physiological conditions over time. Chemically cross-linked poly(vinyl alcohol) (PVA) hydrogels showcase fatigue-resistant attributes and promising biocompatibility for the manufacture of soft neural probes. However, possible swelling of the PVA hydrogel matrix could impact the structural stability of hydrogel-based bioelectronics and their long-term in vivo functionality. In this study, we utilized an atomic layer deposition (ALD) technique to generate an inorganic, silicon dioxide (SiO2) coating layer on chemically cross-linked PVA hydrogel fibers. To evaluate the stability of SiO2-coated PVA hydrogel fibers mimicking the in vivo environment, we conducted accelerated stability tests. SiO2-coated PVA hydrogel fibers showed improved stability over a one-week incubation period under a harsh environment, preventing swelling and preserving their mechanical and optical properties compared to uncoated fibers. These SiO2-coated PVA hydrogel fibers demonstrated nanoscale polymeric crystalline domains (6.5 ± 0.1 nm), an elastic modulus of 73.7 ± 31.7 MPa, a maximum elongation of 113.6 ± 24.2%, and minimal light transmission loss (1.9 ± 0.2 dB cm-1). Lastly, we applied these SiO2-coated PVA hydrogel fibers in vivo to optically activate the motor cortex of transgenic Thy1::ChR2 mice during locomotor behavioral tests. This mouse cohort was genetically modified to express the light-sensitive ion channel, channelrhodopsin-2 (ChR2), and implanted with hydrogel fibers to deliver light to the motor cortex area (M2). Light stimulation via hydrogel fibers resulted in optogenetically modulated mouse locomotor behaviors, including increased contralateral rotation, mobility speeds, and travel distances.
Collapse
Affiliation(s)
- Sizhe Huang
- Department of Biomedical Engineering, University of Massachusetts, Amherst, MA 01003, USA.
| | | | - Iyanah Mehta
- Department of Biomedical Engineering, University of Massachusetts, Amherst, MA 01003, USA.
| | - Omri Yosfan
- Department of Biomedical Engineering, University of Massachusetts, Amherst, MA 01003, USA.
| | - Eunji Hong
- Department of Biomedical Engineering, University of Massachusetts, Amherst, MA 01003, USA.
| | - Anyang Wang
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA 01003, USA
| | - Nianqiang Wu
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA 01003, USA
| | - Qianbin Wang
- Department of Biomedical Engineering, University of Massachusetts, Amherst, MA 01003, USA.
| | - Siyuan Rao
- Department of Biomedical Engineering, University of Massachusetts, Amherst, MA 01003, USA.
- Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA 01003, USA
- Neuroscience and Behavior Graduate Program, University of Massachusetts, Amherst, MA 01003, USA
| |
Collapse
|
7
|
Zhong X, Jordan R, Chen JR, Raymond J, Lahann J. Systematic Studies into the Area Selectivity of Chemical Vapor Deposition Polymerization. ACS APPLIED MATERIALS & INTERFACES 2023; 15:21618-21628. [PMID: 37079371 PMCID: PMC10165597 DOI: 10.1021/acsami.3c01268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
As the current top-down microchip manufacturing processes approach their resolution limits, there is a need for alternative patterning technologies that offer high feature densities and edge fidelity with single-digit nanometer resolution. To address this challenge, bottom-up processes have been considered, but they typically require sophisticated masking and alignment schemes and/or face materials' compatibility issues. In this work, we report a systematic study into the impact of thermodynamic processes on the area selectivity of chemical vapor deposition (CVD) polymerization of functional [2.2]paracyclophanes (PCP). Adhesion mapping of preclosure CVD films by atomic force microscopy (AFM) provided a detailed understanding of the geometric features of the polymer islands that form under different deposition conditions. Our results suggest a correlation between interfacial transport processes, including adsorption, diffusion, and desorption, and thermodynamic control parameters, such as substrate temperature and working pressure. This work culminates in a kinetic model that predictes both area-selective and nonselective CVD parameters for the same polymer/substrate ensemble (PPX-C + Cu). While limited to a focused subset of CVD polymers and substrates, this work provides an improved mechanistic understanding of area-selective CVD polymerization and highlights the potential for thermodynamic control in tuning area selectivity.
Collapse
Affiliation(s)
- Xiaoyang Zhong
- Department of Materials Science and Engineering, University of Michigan, 2300 Hayward St., Ann Arbor, Michigan 48109, United States
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Rob Jordan
- Intel Corporation, 2501 NE Century Blvd., Hillsboro, Oregon 97124, United States
| | - Jiun-Ruey Chen
- Intel Corporation, 2501 NE Century Blvd., Hillsboro, Oregon 97124, United States
| | - Jeffery Raymond
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
- Department of Chemical Engineering, University of Michigan, 2800 Plymouth Rd., Ann Arbor, Michigan 48109, United States
| | - Joerg Lahann
- Department of Materials Science and Engineering, University of Michigan, 2300 Hayward St., Ann Arbor, Michigan 48109, United States
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
- Department of Chemical Engineering, University of Michigan, 2800 Plymouth Rd., Ann Arbor, Michigan 48109, United States
| |
Collapse
|
8
|
Cheng Y, Ma X, Franklin T, Yang R, Moraru CI. Mechano-Bactericidal Surfaces: Mechanisms, Nanofabrication, and Prospects for Food Applications. Annu Rev Food Sci Technol 2023; 14:449-472. [PMID: 36972158 DOI: 10.1146/annurev-food-060721-022330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Mechano-bactericidal (MB) nanopatterns have the ability to inactivate bacterial cells by rupturing cellular envelopes. Such biocide-free, physicomechanical mechanisms may confer lasting biofilm mitigation capability to various materials encountered in food processing, packaging, and food preparation environments. In this review, we first discuss recent progress on elucidating MB mechanisms, unraveling property-activity relationships, and developing cost-effective and scalable nanofabrication technologies. Next, we evaluate the potential challenges that MB surfaces may face in food-related applications and provide our perspective on the critical research needs and opportunities to facilitate their adoption in the food industry.
Collapse
Affiliation(s)
- Yifan Cheng
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, USA;
- Department of Food Science and Technology, Virginia Tech, Blacksburg, Virginia, USA;
| | - Xiaojing Ma
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, USA;
| | - Trevor Franklin
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, USA;
| | - Rong Yang
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, USA;
| | - Carmen I Moraru
- Department of Food Science, Cornell University, Ithaca, New York, USA;
| |
Collapse
|
9
|
Aluru NR, Aydin F, Bazant MZ, Blankschtein D, Brozena AH, de Souza JP, Elimelech M, Faucher S, Fourkas JT, Koman VB, Kuehne M, Kulik HJ, Li HK, Li Y, Li Z, Majumdar A, Martis J, Misra RP, Noy A, Pham TA, Qu H, Rayabharam A, Reed MA, Ritt CL, Schwegler E, Siwy Z, Strano MS, Wang Y, Yao YC, Zhan C, Zhang Z. Fluids and Electrolytes under Confinement in Single-Digit Nanopores. Chem Rev 2023; 123:2737-2831. [PMID: 36898130 PMCID: PMC10037271 DOI: 10.1021/acs.chemrev.2c00155] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Confined fluids and electrolyte solutions in nanopores exhibit rich and surprising physics and chemistry that impact the mass transport and energy efficiency in many important natural systems and industrial applications. Existing theories often fail to predict the exotic effects observed in the narrowest of such pores, called single-digit nanopores (SDNs), which have diameters or conduit widths of less than 10 nm, and have only recently become accessible for experimental measurements. What SDNs reveal has been surprising, including a rapidly increasing number of examples such as extraordinarily fast water transport, distorted fluid-phase boundaries, strong ion-correlation and quantum effects, and dielectric anomalies that are not observed in larger pores. Exploiting these effects presents myriad opportunities in both basic and applied research that stand to impact a host of new technologies at the water-energy nexus, from new membranes for precise separations and water purification to new gas permeable materials for water electrolyzers and energy-storage devices. SDNs also present unique opportunities to achieve ultrasensitive and selective chemical sensing at the single-ion and single-molecule limit. In this review article, we summarize the progress on nanofluidics of SDNs, with a focus on the confinement effects that arise in these extremely narrow nanopores. The recent development of precision model systems, transformative experimental tools, and multiscale theories that have played enabling roles in advancing this frontier are reviewed. We also identify new knowledge gaps in our understanding of nanofluidic transport and provide an outlook for the future challenges and opportunities at this rapidly advancing frontier.
Collapse
Affiliation(s)
- Narayana R Aluru
- Oden Institute for Computational Engineering and Sciences, Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, 78712TexasUnited States
| | - Fikret Aydin
- Materials Science Division, Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California94550, United States
| | - Martin Z Bazant
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
- Department of Mathematics, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Daniel Blankschtein
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Alexandra H Brozena
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland20742, United States
| | - J Pedro de Souza
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut06520-8286, United States
| | - Samuel Faucher
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - John T Fourkas
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland20742, United States
- Institute for Physical Science and Technology, University of Maryland, College Park, Maryland20742, United States
- Maryland NanoCenter, University of Maryland, College Park, Maryland20742, United States
| | - Volodymyr B Koman
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Matthias Kuehne
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Heather J Kulik
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Hao-Kun Li
- Department of Mechanical Engineering, Stanford University, Stanford, California94305, United States
| | - Yuhao Li
- Materials Science Division, Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California94550, United States
| | - Zhongwu Li
- Materials Science Division, Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California94550, United States
| | - Arun Majumdar
- Department of Mechanical Engineering, Stanford University, Stanford, California94305, United States
| | - Joel Martis
- Department of Mechanical Engineering, Stanford University, Stanford, California94305, United States
| | - Rahul Prasanna Misra
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Aleksandr Noy
- Materials Science Division, Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California94550, United States
- School of Natural Sciences, University of California Merced, Merced, California95344, United States
| | - Tuan Anh Pham
- Materials Science Division, Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California94550, United States
| | - Haoran Qu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland20742, United States
| | - Archith Rayabharam
- Oden Institute for Computational Engineering and Sciences, Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, 78712TexasUnited States
| | - Mark A Reed
- Department of Electrical Engineering, Yale University, 15 Prospect Street, New Haven, Connecticut06520, United States
| | - Cody L Ritt
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut06520-8286, United States
| | - Eric Schwegler
- Materials Science Division, Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California94550, United States
| | - Zuzanna Siwy
- Department of Physics and Astronomy, Department of Chemistry, Department of Biomedical Engineering, University of California, Irvine, Irvine92697, United States
| | - Michael S Strano
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - YuHuang Wang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland20742, United States
- Maryland NanoCenter, University of Maryland, College Park, Maryland20742, United States
| | - Yun-Chiao Yao
- Materials Science Division, Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California94550, United States
- School of Natural Sciences, University of California Merced, Merced, California95344, United States
| | - Cheng Zhan
- Materials Science Division, Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California94550, United States
| | - Ze Zhang
- Department of Mechanical Engineering, Stanford University, Stanford, California94305, United States
| |
Collapse
|
10
|
Dong Z, He Q, Shen D, Gong Z, Zhang D, Zhang W, Ono T, Jiang Y. Microfabrication of functional polyimide films and microstructures for flexible MEMS applications. MICROSYSTEMS & NANOENGINEERING 2023; 9:31. [PMID: 36969964 PMCID: PMC10030833 DOI: 10.1038/s41378-023-00503-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 11/27/2022] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Polyimides are widely used in the MEMS and flexible electronics fields due to their combined physicochemical properties, including high thermal stability, mechanical strength, and chemical resistance values. In the past decade, rapid progress has been made in the microfabrication of polyimides. However, enabling technologies, such as laser-induced graphene on polyimide, photosensitive polyimide micropatterning, and 3D polyimide microstructure assembly, have not been reviewed from the perspective of polyimide microfabrication. The aims of this review are to systematically discuss polyimide microfabrication techniques, which cover film formation, material conversion, micropatterning, 3D microfabrication, and their applications. With an emphasis on polyimide-based flexible MEMS devices, we discuss the remaining technological challenges in polyimide fabrication and possible technological innovations in this field.
Collapse
Affiliation(s)
- Zihao Dong
- Institute of Bionic and Micronano Systems, School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191 China
| | - Qipei He
- Institute of Bionic and Micronano Systems, School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191 China
| | - Dawei Shen
- Institute of Bionic and Micronano Systems, School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191 China
| | - Zheng Gong
- Institute of Bionic and Micronano Systems, School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191 China
| | - Deyuan Zhang
- Institute of Bionic and Micronano Systems, School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191 China
| | - Wenqiang Zhang
- College of Engineering, China Agricultural University, Beijing, 100083 China
| | - Takahito Ono
- Graduate School of Engineering, Tohoku University, 6-6-01 Aramaki-Aza-Aoba, Aoba-ku, Sendai, 980-8579 Japan
| | - Yonggang Jiang
- Institute of Bionic and Micronano Systems, School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191 China
| |
Collapse
|
11
|
Porrati F, Barth S, Gazzadi GC, Frabboni S, Volkov OM, Makarov D, Huth M. Site-Selective Chemical Vapor Deposition on Direct-Write 3D Nanoarchitectures. ACS NANO 2023; 17:4704-4715. [PMID: 36826847 DOI: 10.1021/acsnano.2c10968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Recent advancements in additive manufacturing have enabled the preparation of free-shaped 3D objects with feature sizes down to and below the micrometer scale. Among the fabrication methods, focused electron beam- and focused ion beam-induced deposition (FEBID and FIBID, respectively) associate a high flexibility and unmatched accuracy in 3D writing with a wide material portfolio, thereby allowing for the growth of metallic to insulating materials. The combination of the free-shaped 3D nanowriting with established chemical vapor deposition (CVD) techniques provides attractive opportunities to synthesize complex 3D core-shell heterostructures. Hence, this hybrid approach enables the fabrication of morphologically tunable layer-based nanostructures with the great potential of unlocking further functionalities. Here, the fundamentals of such a hybrid approach are demonstrated by preparing core-shell heterostructures using 3D FEBID scaffolds for site-selective CVD. In particular, 3D microbridges are printed by FEBID with the (CH3)3CH3C5H4Pt precursor and coated by thermal CVD using the Nb(NMe2)3(N-t-Bu) and HFeCo3(CO)12 precursors. Two model systems on the basis of CVD layers consisting of a superconducting NbC-based layer and a ferromagnetic Co3Fe layer are prepared and characterized with regard to their composition, microstructure, and magneto-transport properties.
Collapse
Affiliation(s)
- Fabrizio Porrati
- Physikalisches Institut, Goethe-Universität, Max-von-Laue-Str. 1, D-60438 Frankfurt am Main, Germany
| | - Sven Barth
- Physikalisches Institut, Goethe-Universität, Max-von-Laue-Str. 1, D-60438 Frankfurt am Main, Germany
| | - Gian Carlo Gazzadi
- S3 Center, Nanoscience Institute-CNR, Via Campi 213/a, I-41125 Modena, Italy
| | - Stefano Frabboni
- S3 Center, Nanoscience Institute-CNR, Via Campi 213/a, I-41125 Modena, Italy
- FIM Department, University of Modena and Reggio Emilia, Via G. Campi 213/a, I-41125 Modena, Italy
| | - Oleksii M Volkov
- Helmholtz-Zentrum DresdenRossendorf e.V., Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - Denys Makarov
- Helmholtz-Zentrum DresdenRossendorf e.V., Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - Michael Huth
- Physikalisches Institut, Goethe-Universität, Max-von-Laue-Str. 1, D-60438 Frankfurt am Main, Germany
| |
Collapse
|
12
|
Chang YM, Xiao JQ, Christy J, Wu CY, Huang CW, Wu TY, Chiang YC, Lin TH, Chen HY. Ice-templated synthesis of multicomponent porous coatings via vapour sublimation and deposition polymerization. Mater Today Bio 2022; 16:100403. [PMID: 36090608 PMCID: PMC9449663 DOI: 10.1016/j.mtbio.2022.100403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/04/2022] [Accepted: 08/16/2022] [Indexed: 11/26/2022] Open
Abstract
A multicomponent vapour-deposited porous (MVP) coating with combined physical and biochemical properties was fabricated based on a chemical vapour sublimation and deposition process. Multiple components are used based on their natural thermodynamic properties, being volatile and/or nonvolatile, resulting in the sublimation of water vapour (from an iced template), and a simultaneous deposition process of poly-p-xylylene occurs upon radical polymerization into a disordered structure, forming porous coatings of MVP on various substrates. In terms of physical properties, the coating technology exhibits adjustable hydrophobicity by tuning the surface morphology by timed control of the sublimation of the iced template layer from a substrate. However, by using a nonvolatile solution during fabrication, an impregnation process of the deposited poly-p-xylylene on such a solution with tuning contact angles produces an MVP coating with a customizable elastic modulus based on deformation-elasticity theory. Moreover, patterning physical structures with adjustable pore size and/or porosity of the coatings, as well as modulation and compartmentalization to introduce necessary boundaries of microstructures within one MVP coating layer, can be achieved during the proposed fabrication process. Finally, with a combination of defined solutions comprised of both volatile and nonvolatile multicomponents, including functional biomolecules, growth factor proteins, and living cells, the fabrication of the resultant MVP coating serves devised purposes exhibiting a variety of biological functions demonstrated with versatility for cell proliferation, osteogenesis, adipogenesis, odontogenesis, spheroid growth of stem cells, and a complex coculture system towards angiogenesis. Multicomponent porous coating technology is produced based on vapour sublimation and deposition upon radical polymerization that overturns conventional vapour-deposited coatings, resulting in only dense thin films, and in addition, the versatility of adjusting coating physical and chemical properties by exploiting the volatility mechanism of iced solution templates and accommodation of solute substances during the fabrication process. The MVP coating and the proposed fabrication technique represent a simple approach to provide a prospective interface coating layer for materials science and are attractive for unlimited applications.
Collapse
|
13
|
Kim H, Li J, Hsieh YSY, Cho M, Ahn SH, Li C. Photo-Programmed Deformations in Rigid Liquid Crystalline Polymers Triggered by Body Temperature. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203772. [PMID: 36169084 DOI: 10.1002/smll.202203772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Deformations triggered by body heat are desirable in the context of shape-morphing applications because, under the majority of circumstances, the human body maintains a higher temperature than that of its surroundings. However, at present, this bioenergy-triggered action is primarily limited to soft polymeric networks. Thus, herein, the programming of body temperature-triggered deformations into rigid azobenzene-containing liquid crystalline polymers (azo-LCPs) with a glass-transition temperature of 100 °C is demonstrated. To achieve this, a mechano-assisted photo-programming strategy is used to create a metastable state with room-temperature stable residual stress, which is induced by the isomerization of azobenzene. The programmed rigid azo-LCP can undergo large-amplitude body temperature-triggered shape changes within minutes and can be regenerated without any performance degradation. By changing the programming photomasks and irradiation conditions employed, various 2D to 3D shape-morphing architectures, including folded clips, inch-worm structures, spiral structures, and snap-through motions are achieved. When programmed with polarized light, the proposed strategy results in domain-selective activation, generating designed characteristics in multi-domain azo-LCPs. The reported strategy is therefore expected to broaden the applications of azo-LCPs in the fields of biomedical and flexible microelectronic devices.
Collapse
Affiliation(s)
- Hyunsu Kim
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Jing Li
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm, SE106 91, Sweden
| | - Yves S Y Hsieh
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm, SE106 91, Sweden
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
| | - Maenghyo Cho
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Sung-Hoon Ahn
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Chenzhe Li
- School of Aerospace Engineering and Applied Mechanics, Tongji University, 100 Zhangwu Road, Shanghai, 200092, China
- Institute of Advanced Machines and Design, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| |
Collapse
|
14
|
Electrosynthesis of poly (4-amino-3-nitrostyrene) film and its characterization. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01775-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Tripathy A, Regulagadda K, Lam CWE, Donati MA, Milionis A, Sharma CS, Mitridis E, Schutzius TM, Poulikakos D. Ultrathin Durable Organic Hydrophobic Coatings Enhancing Dropwise Condensation Heat Transfer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:11296-11303. [PMID: 36037308 PMCID: PMC9494938 DOI: 10.1021/acs.langmuir.2c01477] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/17/2022] [Indexed: 06/15/2023]
Abstract
Organic hydrophobic layers targeting sustained dropwise condensation are highly desirable but suffer from poor chemical and mechanical stability, combined with low thermal conductivity. The requirement of such layers to remain ultrathin to minimize their inherent thermal resistance competes against durability considerations. Here, we investigate the long-term durability and enhanced heat-transfer performance of perfluorodecanethiol (PFDT) coatings compared to alternative organic coatings, namely, perfluorodecyltriethoxysilane (PFDTS) and perfluorodecyl acrylate (PFDA), the latter fabricated with initiated chemical vapor deposition (iCVD), in condensation heat transfer and under the challenging operating conditions of intense flow (up to 9 m s-1) of superheated steam (111 °C) at high pressures (1.42 bar). We find that the thiol coating clearly outperforms the silane coating in terms of both heat transfer and durability. In addition, despite being only a monolayer, it clearly also outperforms the iCVD-fabricated PFDA coating in terms of durability. Remarkably, the thiol layer exhibited dropwise condensation for at least 63 h (>2× times more than the PFDA coating, which survived for 30 h), without any visible deterioration, showcasing its hydrolytic stability. The cost of thiol functionalization per area was also the lowest as compared to all of the other surface hydrophobic treatments used in this study, thus making it the most efficient option for practical applications on copper substrates.
Collapse
Affiliation(s)
- Abinash Tripathy
- Laboratory
of Thermodynamics in Emerging Technologies, Department of Mechanical
and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Kartik Regulagadda
- Laboratory
of Thermodynamics in Emerging Technologies, Department of Mechanical
and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Cheuk Wing Edmond Lam
- Laboratory
of Thermodynamics in Emerging Technologies, Department of Mechanical
and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Matteo A. Donati
- Laboratory
of Thermodynamics in Emerging Technologies, Department of Mechanical
and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Athanasios Milionis
- Laboratory
of Thermodynamics in Emerging Technologies, Department of Mechanical
and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Chander Shekhar Sharma
- Thermofluidics
Research Lab, Department of Mechanical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab 140 001, India
| | - Efstratios Mitridis
- Laboratory
of Thermodynamics in Emerging Technologies, Department of Mechanical
and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Thomas M. Schutzius
- Laboratory
of Thermodynamics in Emerging Technologies, Department of Mechanical
and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Dimos Poulikakos
- Laboratory
of Thermodynamics in Emerging Technologies, Department of Mechanical
and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| |
Collapse
|
16
|
Hassan Z, Varadharajan D, Zippel C, Begum S, Lahann J, Bräse S. Design Strategies for Structurally Controlled Polymer Surfaces via Cyclophane-Based CVD Polymerization and Post-CVD Fabrication. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201761. [PMID: 35555829 DOI: 10.1002/adma.202201761] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/15/2022] [Indexed: 06/15/2023]
Abstract
Molecular structuring of soft matter with precise arrangements over multiple hierarchical levels, especially on polymer surfaces, and enabling their post-synthetic modulation has tremendous potential for application in molecular engineering and interfacial science. Here, recent research and developments in design strategies for structurally controlled polymer surfaces via cyclophane-based chemical vapor deposition (CVD) polymerization with precise control over chemical functionalities and post-CVD fabrication via orthogonal surface functionalization that facilitates the formation of designable biointerfaces are summarized. Particular discussion about innovative approaches for the templated synthesis of shape-controlled CVD polymers, ranging from 1D to 3D architecture, including inside confined nanochannels, nanofibers/nanowires synthesis into an anisotropic media such as liquid crystals, and CVD polymer nanohelices via hierarchical chirality transfer across multiple length scales is provided. Aiming at multifunctional polymer surfaces via CVD copolymerization of multiple precursors, the structural and functional design of the fundamental [2.2]paracyclophane (PCP) precursor molecules, that is, functional CVD monomer chemistry is also described. Technologically advanced and innovative surface deposition techniques toward topological micro- and nanostructuring, including microcontact printing, photopatterning, photomask, and lithographic techniques such as dip-pen nanolithography, showcasing research from the authors' laboratories as well as other's relevant important findings in this evolving field are highlighted that have introduced new programmable CVD polymerization capabilities. Perspectives, current limitations, and future considerations are provided.
Collapse
Affiliation(s)
- Zahid Hassan
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131, Karlsruhe, Germany
| | - Divya Varadharajan
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
| | - Christoph Zippel
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131, Karlsruhe, Germany
| | - Salma Begum
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131, Karlsruhe, Germany
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
| | - Jörg Lahann
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
- Biointerfaces Institute, Departments of Biomedical Engineering and Chemical Engineering, University of Michigan 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
| | - Stefan Bräse
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131, Karlsruhe, Germany
- Institute of Biological and Chemical Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| |
Collapse
|
17
|
Linn JD, Liberman L, Neal CAP, Calabrese MA. Role of chain architecture in the solution phase assembly and thermoreversibility of aqueous PNIPAM/silyl methacrylate copolymers. Polym Chem 2022; 13:3840-3855. [PMID: 37193094 PMCID: PMC10181847 DOI: 10.1039/d2py00254j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stimuli-responsive polymers functionalized with reactive inorganic groups enable creation of macromolecular structures such as hydrogels, micelles, and coatings that demonstrate smart behavior. Prior studies using poly(N-isopropyl acrylamide-co-3-(trimethoxysilyl)propyl methacrylate) (P(NIPAM-co-TMA)) have stabilized micelles and produced functional nanoscale coatings; however, such systems show limited responsiveness over multiple thermal cycles. Here, polymer architecture and TMA content are connected to the aqueous self-assembly, optical response, and thermo-reversibility of two distinct types of PNIPAM/TMA copolymers: random P(NIPAM-co-TMA), and a 'blocky-functionalized' copolymer where TMA is localized to one portion of the chain, P(NIPAM-b-NIPAM-co-TMA). Aqueous solution behavior characterized via cloud point testing (CPT), dynamic light scattering (DLS), and variable-temperature nuclear magnetic resonance spectroscopy (NMR) demonstrates that thermoresponsiveness and thermoreversibility over multiple cycles is a strong function of polymer configuration and TMA content. Despite low TMA content (≤2% mol), blocky-functionalized copolymers assemble into small, well-ordered structures above the cloud point that lead to distinct transmittance behaviors and stimuli-responsiveness over multiple cycles. Conversely, random copolymers form disordered aggregates at elevated temperatures, and only exhibit thermoreversibility at negligible TMA fractions (0.5% mol); higher TMA content leads to irreversible structure formation. This understanding of the architectural and assembly effects on the thermal cyclability of aqueous PNIPAM-co-TMA can be used to improve the scalability of responsive polymer applications requiring thermoreversible behavior, including sensing, separations, and functional coatings.
Collapse
Affiliation(s)
- Jason D Linn
- Department of Chemical Engineering and Materials Science, University of Minnesota Twin Cities, 421 Washington Ave SE, Minneapolis, MN 55455, USA
| | - Lucy Liberman
- Department of Chemical Engineering and Materials Science, University of Minnesota Twin Cities, 421 Washington Ave SE, Minneapolis, MN 55455, USA
| | - Christopher A P Neal
- Department of Chemical Engineering and Materials Science, University of Minnesota Twin Cities, 421 Washington Ave SE, Minneapolis, MN 55455, USA
| | - Michelle A Calabrese
- Department of Chemical Engineering and Materials Science, University of Minnesota Twin Cities, 421 Washington Ave SE, Minneapolis, MN 55455, USA
| |
Collapse
|
18
|
Cheng YK, Campéon BDL, Obata S, Nishina Y. Synergic effect of graphene oxide and boron nitride on the mechanical properties of polyimide composite films. NANOSCALE ADVANCES 2022; 4:2339-2345. [PMID: 36133701 PMCID: PMC9417609 DOI: 10.1039/d2na00078d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/01/2022] [Indexed: 06/01/2023]
Abstract
The addition of two-dimensional (2D) materials into polymers can improve their mechanical properties. In particular, graphene oxide (GO) and hexagonal boron nitride (h-BN) are expected to be potential nanoplatelet additives for polymers. Interactions between such nanoplatelets and polymers are effective in improving the above properties. However, no report has investigated the effect of using two types of nanoplatelets that have good interaction with polymers. In this study, we fabricated polyimide (PI) films that contain two types of nanoplatelets, amine-functionalized h-BN (BNNH2 ) and GO. We have elucidated that the critical ratio and the content of BNNH2 and GO within PI govern the films' mechanical properties. When the BNNH2 /GO weight ratio was 52 : 1 and their content was 1 wt% in the PI film, the tensile modulus and tensile strength were increased by 155.2 MPa and 4.2 GPa compared with the pristine PI film.
Collapse
Affiliation(s)
- Yi Kai Cheng
- Graduate School of Natural Science and Technology, Okayama University 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| | - Benoît Denis Louis Campéon
- Research Core for Interdisciplinary Sciences, Okayama University 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| | - Seiji Obata
- Research Core for Interdisciplinary Sciences, Okayama University 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| | - Yuta Nishina
- Graduate School of Natural Science and Technology, Okayama University 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
- Research Core for Interdisciplinary Sciences, Okayama University 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| |
Collapse
|
19
|
Hybrid Surface Nanostructures Using Chemical Vapor Deposition and Colloidal Self-Assembled Patterns for Human Mesenchymal Stem Cell Culture—A Preliminary Study. COATINGS 2022. [DOI: 10.3390/coatings12030311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Surface coatings are critical in biomaterials and biomedical devices. Chemical vapor deposition (CVD) is a well-known technology for the generation of thin films on a surface. However, the granular structures produced using CVD are rare. Recently, we used PPX-C, an excellent insulating material, for granular structure coating using CVD. Colloidal self-assembly is also a well-established method to generate granular structures named colloidal self-assembled patterns (cSAPs). In this study, we combined these two technologies to generate hierarchical granular structures and tested the biophysical effect of these hybrid surfaces on human bone marrow mesenchymal stem cells (hBMSCs). Two CVD-derived granular structures were made using water or glycerin droplets (i.e., CVD or GlyCVD surfaces). Water drops generate porous particles, while glycerin drops generate core–shell particles on the surface. These particles were dispersed randomly on the surface with sizes ranging from 1 to 20 μm. These CVD surfaces were hydrophobic (WCA ~ 80–110 degrees). On the other hand, a binary colloidal crystal (BCC), one type of cSAPs, composed of 5 μm Si and 400 nm carboxylated polystyrene (PSC) particles, had a close-packed structure and a hydrophilic surface (WCA ~ 45 degrees). The hybrid surfaces (i.e., CVD-BCC and GlyCVD-BCC) were smooth (Ra ~ 1.1–1.5 μm) and hydrophilic (WCA ~ 50 degrees), indicating a large surface coverage of BCC dominating the surface property. The hybrid surfaces were expected to be slightly negatively charged due to naturally charged CVD particles and negatively charged BCC particles. Cell adhesion was reduced on the hybrid surfaces, leading to an aggregated cell morphology, without reducing cell activity, compared to the flat control after 5 days. qPCR analysis showed that gene expression of type II collagen (COL2) was highly expressed on the GlyCVD-BCC without chemical induction after 3 and 14 days compared to the flat control. This proof-of-concept study demonstrates the potential of combining two technologies to make hybrid structures that can modulate stem cell attachment and differentiation.
Collapse
|
20
|
Bellomo N, Michel M, Pistillo BR, White RJ, Barborini E, Lenoble D. Chemical Vapor Deposition for Advanced Polymer Electrolyte Fuel Cell Membranes. ChemElectroChem 2022. [DOI: 10.1002/celc.202101019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nicolas Bellomo
- Materials Research and Technology Department Luxembourg Institute of Science and Technology L-4422 Belvaux Luxembourg
- University of Luxembourg 2 Avenue de l'Université Esch-sur-Alzette L-4365 Luxembourg
| | - Marc Michel
- Materials Research and Technology Department Luxembourg Institute of Science and Technology L-4422 Belvaux Luxembourg
| | - Bianca Rita Pistillo
- Materials Research and Technology Department Luxembourg Institute of Science and Technology L-4422 Belvaux Luxembourg
| | - Robin J. White
- Materials Research and Technology Department Luxembourg Institute of Science and Technology L-4422 Belvaux Luxembourg
| | - Emanuele Barborini
- Materials Research and Technology Department Luxembourg Institute of Science and Technology L-4422 Belvaux Luxembourg
| | - Damien Lenoble
- Materials Research and Technology Department Luxembourg Institute of Science and Technology L-4422 Belvaux Luxembourg
| |
Collapse
|
21
|
Liu Y, Zhou Y, Xu Y. State-of-the-Art, Opportunities, and Challenges in Bottom-up Synthesis of Polymers with High Thermal Conductivity. Polym Chem 2022. [DOI: 10.1039/d2py00272h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In contrast to metals, polymers are predominantly thermal and electrical insulators. With their unparalleled advantages such as light weight, turning polymer insulators into heat conductors with metal-like thermal conductivity is...
Collapse
|
22
|
Azim N, Orrico JF, Appavoo D, Zhai L, Rajaraman S. Polydopamine surface functionalization of 3D printed resin material for enhanced polystyrene adhesion towards insulation layers for 3D microelectrode arrays (3D MEAs). RSC Adv 2022; 12:25605-25616. [PMID: 36320408 PMCID: PMC9493467 DOI: 10.1039/d2ra03911g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/16/2022] [Indexed: 12/05/2022] Open
Abstract
3D printing involves the use of photopolymerizable resins, which are toxic and typically have incompatible properties with materials such as polystyrene (PS), which present limitations for biomedical applications. We present a method to dramatically improve the poor adhesion between the PS insulative layer on 3D printed Microelectrode Array (MEA) substrates by functionalizing the resin surface with polydopamine (PDA), a mussel-inspired surface chemistry derivative. A commercial 3D printing prepolymer resin, FormLabs Clear (FLC), was printed using a digital light processing (DLP) printer and then surface functionalized with PDA by alkali-induced aqueous immersion deposition and self-polymerization. It was observed that the adhesion of the PS to FLC was improved due to the precision emanating from the DLP method and further improved after the functionalization of DLP printed substrates with PDA at 1, 12, and 24 h time intervals. The adhesion of PS was evaluated through scotch tape peel testing and instron measurements of planar substrates and incubation testing with qualitative analysis of printed culture wells. The composition and topology of the samples were studied to understand how the properties of the surface change after PDA functionalization and how this contributes to the overall improvement in PS adhesion. Furthermore, the surface energies at each PDA deposition time were calculated from contact angle studies as it related to adhesion. Finally, biocompatibility assays of the newly modified surfaces were performed using mouse cardiac cells (HL-1) to demonstrate the biocompatibility of the PDA functionalization process. PDA surface functionalization of 3D DLP printed FLC resin resulted in a dramatic improvement of thin film PS adhesion and proved to be a biocompatible solution for improving additive manufacturing processes to realize biosensors such as in vitro MEAs. 3D printing involves the use of toxic photopolymerizable resins which typically have incompatible properties with polystyrene for biomedical applications. Herein, we use 3D printing tricks and polydopamine to dramatically improve adhesion.![]()
Collapse
Affiliation(s)
- Nilab Azim
- NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL, 32826, USA
- Department of Chemistry, University of Central Florida, Orlando, FL, 32826, USA
| | - Julia Freitas Orrico
- NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL, 32826, USA
| | - Divambal Appavoo
- NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL, 32826, USA
| | - Lei Zhai
- NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL, 32826, USA
- Department of Chemistry, University of Central Florida, Orlando, FL, 32826, USA
| | - Swaminathan Rajaraman
- NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL, 32826, USA
- Department of Materials Science & Engineering, University of Central Florida, Orlando, FL, 32826, USA
- Department of Electrical & Computer Engineering, University of Central Florida, Orlando, FL, 32826, USA
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, 32826, USA
| |
Collapse
|
23
|
Franklin T, Wu Y, Lang J, Li S, Yang R. Design of Polymeric Thin Films to Direct Microbial Biofilm Growth, Virulence, and Metabolism. Biomacromolecules 2021; 22:4933-4944. [PMID: 34694768 DOI: 10.1021/acs.biomac.1c00731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Biofilms are ubiquitous in nature, yet strategies to direct biofilm behavior without genetic manipulation are limited. Due to the small selection of materials that have been used to successfully grow biofilms, the availability of functional materials that are able to support growth and program microbial functions remains a critical bottleneck in the design and deployment of functional yet safe microbes. Here, we report the design of insoluble pyridine-rich polymer surfaces synthesized using initiated chemical vapor deposition, which led to modulated biofilm growth and virulence in Pseudomonas aeruginosa (PAO1). A variety of extracellular virulence factors exhibited decreased production in response to the functional polymer, most significantly biomolecules also associated with iron acquisition, validating the material design strategy reported here. This report signifies a rich potential for materials-based strategies to direct the behavior of naturally occurring biofilms, which complement the existing genetic engineering toolkits in advancing microbiology, translational medicine, and biomanufacturing.
Collapse
Affiliation(s)
- Trevor Franklin
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, 120, Olin Hall, Ithaca, New York 14853, United States
| | - Yinan Wu
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, 120, Olin Hall, Ithaca, New York 14853, United States
| | - Jiayan Lang
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, 120, Olin Hall, Ithaca, New York 14853, United States
| | - Sijin Li
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, 120, Olin Hall, Ithaca, New York 14853, United States
| | - Rong Yang
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, 120, Olin Hall, Ithaca, New York 14853, United States
| |
Collapse
|
24
|
Accelerating charge transfer via nonconjugated polyelectrolyte interlayers toward efficient versatile photoredox catalysis. Commun Chem 2021; 4:150. [PMID: 36697810 PMCID: PMC9814354 DOI: 10.1038/s42004-021-00589-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 10/07/2021] [Indexed: 01/28/2023] Open
Abstract
One of the challenges for high-efficiency single-component-based photoredox catalysts is the low charge transfer and extraction due to the high recombination rate. Here, we demonstrate a strategy to precisely control the charge separation and transport efficiency of the catalytic host by introducing electron or hole extraction interlayers to improve the catalytic efficiency. We use simple and easily available non-conjugated polyelectrolytes (NCPs) (i.e., polyethyleneimine, PEI; poly(allylamine hydrochloride), PAH) to form interlayers, wherein such NCPs consist of the nonconjugated backbone with charge transporting functional groups. Taking CdS as examples, it is shown that although PEI and PAH are insulators and therefore do not have the ability to conduct electricity, they can form good electron or hole transport extraction layers due to the higher charge-transfer kinetics of pendant groups along the backbones, thereby greatly improving the charge transfer capability of CdS. Consequently, the resultant PEI-/PAH-functionalized nanocomposites exhibit significantly enhanced and versatile photoredox catalysis.
Collapse
|
25
|
Bayram F, Mercan ES, Karaman M. One-step fabrication of superhydrophobic-superoleophilic membrane by initiated chemical vapor deposition method for oil–water separation. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-021-04870-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
26
|
Shape Memory Alloys and Polymers for MEMS/NEMS Applications: Review on Recent Findings and Challenges in Design, Preparation, and Characterization. METALS 2021. [DOI: 10.3390/met11030415] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Rapid progress in material science and nanotechnology has led to the development of the shape memory alloys (SMA) and the shape memory polymers (SMP) based functional multilayered structures that, due to their capability to achieve the properties not feasible by most natural materials, have attracted a significant attention from the scientific community. These shape memory materials can sustain large deformations, which can be recovered once the appropriate value of an external stimulus is applied. Moreover, the SMAs and SMPs can be reprogrammed to meet several desired functional properties. As a result, SMAs and SMPs multilayered structures benefit from the unprecedented physical and material properties such as the shape memory effect, superelasticity, large displacement actuation, changeable mechanical properties, and the high energy density. They hold promises in the design of advanced functional micro- and nano-electro-mechanical systems (MEMS/NEMS). In this review, we discuss the recent understanding and progress in the fields of the SMAs and SMPs. Particular attention will be given to the existing challenges, critical issues, limitations, and achievements in the preparation and characterization of the SMPs and NiTi-based SMAs thin films, and their heterostructures for MEMS/NEMS applications including both experimental and computational approaches. Examples of the recent MEMS/NEMS devices utilizing the unique properties of SMAs and SMPs such as micropumps, microsensors or tunable metamaterial resonators are highlighted. In addition, we also introduce the prospective future research directions in the fields of SMAs and SMPs for the nanotechnology applications.
Collapse
|
27
|
Choi Y, Song Y, Kim YT, Lee SJ, Lee KG, Im SG. Multifunctional Printable Micropattern Array for Digital Nucleic Acid Assay for Microbial Pathogen Detection. ACS APPLIED MATERIALS & INTERFACES 2021; 13:3098-3108. [PMID: 33423455 DOI: 10.1021/acsami.0c16862] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The digital nucleic acid assay is a precise, sensitive, and reproducible method for determining the presence of individual target molecules separated in designated partitions; thus, this technique can be used for the nucleic acid detection. Here, we propose a multifunctional micropattern array capable of isolating individual target molecules into partitions and simultaneous on-site cell lysis to achieve a direct DNA extraction and digitized quantification thereof. The multifunctional micropattern array is fabricated by the deposition of a copolymer film, poly(2-dimethylaminomethyl styrene-co-hydroxyethyl methacrylate) (pDH), directly on a microfluidic chip surface via the photoinitiated chemical vapor deposition process, followed by hydrophobic microcontact printing (μCP) to define each partition for the nucleic acid isolation. The pDH layer is a positively charged surface, which is desirable for the bacterial lysis and DNA capture, while showing exceptional water stability for more than 24 h. The hydrophobic μCP-treated pDH surface is stable under aqueous conditions at a high temperature (70 °C) for 1 h and enables the rapid and reliable formation of thousands of sessile microdroplets for the compartmentalization of an aqueous sample solution without involving bulky and costly microfluidic devices. By assembling the multifunctional micropattern array into the microfluidic chip, the isothermal amplification in each partition can detect DNA templates over a concentration range of 0.01-2 ng/μL. The untreated bacterial cells can also be directly compartmentalized via the microdroplet formation, followed by the on-site cell lysis and DNA capture on the compartmentalized pDH surface. For Escherichia coli O157:H7, Salmonella enteritidis, and Staphylococcus aureus cells, cell numbers ranging from 1.4 × 104 to 1.4 × 107 can be distinguished by using the multifunctional micropattern array, regardless of the cell type. The multifunctional micropattern array developed in this study provides a novel multifunctional compartmentalization method for rapid, simple, and accurate digital nucleic acid assays.
Collapse
Affiliation(s)
- Yunho Choi
- Department of Chemical & Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Younseong Song
- Department of Chemical & Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Yong Tae Kim
- Department of Chemical Engineering & Biotechnology, Korea Polytechnic University, 237 Sangidaehak-ro, Siheung-si, Gyeonggi-do 15073, Republic of Korea
| | - Seok Jae Lee
- National Nanofab Center, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Kyoung G Lee
- National Nanofab Center, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Sung Gap Im
- Department of Chemical & Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- KAIST Institute for NanoCentury, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| |
Collapse
|
28
|
Wang M, Ghosh SK, Stafford CM, Blevins AK, Huang S, Martinez J, Long R, Bowman CN, Killgore JP, Zou M, Ding Y. Snakeskin-Inspired Elastomers with Extremely Low Coefficient of Friction under Dry Conditions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:57450-57460. [PMID: 33306352 DOI: 10.1021/acsami.0c18316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Soft elastomers are critical to a broad range of existing and emerging technologies. One major limitation of soft elastomers is the large friction of coefficient (COF) due to inherently large adhesion and internal loss. In applications where lubrication is not applicable, such as soft robotics, wearable electronics, and biomedical devices, elastomers with inherently low dry COF are required. Inspired by the low COF of snakeskins atop soft bodies, this study reports the development of elastomers with low dry COF by growing a hybrid skin layer with a strong interface with a large stiffness gradient. Using a solid-liquid interfacial polymerization (SLIP) process, hybrid skin layers are imparted onto elastomers, which reduces the COF of the elastomers from 1.6 to 0.1, without sacrificing the bulk compliance and ductility of elastomer. Compared with existing surface modification methods, the SLIP process offers spatial control and ability to modify flat, prepatterned, curved, and inner surfaces, which is essential to engineer multifunctional skin layers for emerging applications.
Collapse
Affiliation(s)
- Mengyuan Wang
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado 80303, United States
- Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
| | - Sujan K Ghosh
- Department of Mechanical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Christopher M Stafford
- Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Adrienne K Blevins
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado 80303, United States
- Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
| | - Sijia Huang
- Department of Chemical and Biochemical Engineering, University of Colorado, Boulder, Colorado 80309, United States
| | - Jaylene Martinez
- Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
| | - Rong Long
- Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
| | - Christopher N Bowman
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado 80303, United States
- Department of Chemical and Biochemical Engineering, University of Colorado, Boulder, Colorado 80309, United States
| | - Jason P Killgore
- Applied Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, Colorado 80305, United States
| | - Min Zou
- Department of Mechanical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Yifu Ding
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado 80303, United States
- Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
| |
Collapse
|
29
|
Rhee D, Deng S, Odom TW. Soft skin layers for reconfigurable and programmable nanowrinkles. NANOSCALE 2020; 12:23920-23928. [PMID: 33242039 DOI: 10.1039/d0nr07054h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Wrinkling skin layers on pre-strained polymer sheets has drawn significant interest as a method to create reconfigurable surface patterns. Compared to widely studied metal or silica films, softer polymer skins are more tolerant to crack formation when the surface topography is tuned under applied strain. This Mini-review discusses recent progress in mechano-responsive wrinkles based on polymer skin materials. Control over the skin thickness with nanometer accuracy allows for tuning of the wrinkle wavelength and orientation over length scales from nanometer to micrometer regimes. Furthermore, soft skin layers enable texturing of two-dimensional electronic materials with programmable feature sizes and structural hierarchy because of the conformal adhesion to the substrates. Soft skin systems open prospects to tailor a range of surface properties via external stimuli important for applications such as smart windows, microfluidics, and nanoelectronics.
Collapse
Affiliation(s)
- Dongjoon Rhee
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA.
| | | | | |
Collapse
|
30
|
Pesenti T, Nicolas J. 100th Anniversary of Macromolecular Science Viewpoint: Degradable Polymers from Radical Ring-Opening Polymerization: Latest Advances, New Directions, and Ongoing Challenges. ACS Macro Lett 2020; 9:1812-1835. [PMID: 35653672 DOI: 10.1021/acsmacrolett.0c00676] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Radical ring-opening polymerization (rROP) allows facile incorporation of labile groups (e.g., ester) into the main chain of vinyl polymers to obtain (bio)degradable materials. rROP has focused a lot of attention especially since the advent of reversible deactivation radical polymerization (RDRP) techniques and is still incredibly moving forward, as attested by the numerous achievements in terms of monomer synthesis, macromolecular engineering, and potential biomedical applications of the resulting degradable polymers. In the present Viewpoint, we will cover the latest progress made in rROP in the last ∼5 years, such as its recent directions, its remaining limitations, and the ongoing challenges. More specifically, this will be achieved through the three different classes of monomers that recently caught most of the attention: cyclic ketene acetals (CKA), thionolactones, and macrocyclic monomers.
Collapse
Affiliation(s)
- Théo Pesenti
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296 Châtenay-Malabry, France
| | - Julien Nicolas
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296 Châtenay-Malabry, France
| |
Collapse
|
31
|
Onggar T, Kruppke I, Cherif C. Techniques and Processes for the Realization of Electrically Conducting Textile Materials from Intrinsically Conducting Polymers and Their Application Potential. Polymers (Basel) 2020; 12:polym12122867. [PMID: 33266078 PMCID: PMC7761229 DOI: 10.3390/polym12122867] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/13/2020] [Accepted: 11/24/2020] [Indexed: 01/07/2023] Open
Abstract
This review will give an overview on functional conducting polymers, while focusing on the integration of intrinsically conducting, i.e., self-conducting, polymers for creating electrically conducting textile materials. Thus, different conduction mechanisms as well as achievable electrical properties will be introduced. First, essential polymers will be described individually, and secondly, techniques and processes for the realization of electrically conducting textile products in addition to their application potential will be presented.
Collapse
|
32
|
Li X, Rafie A, Kalra V, Lau KKS. Deposition Behavior of Polyaniline on Carbon Nanofibers by Oxidative Chemical Vapor Deposition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:13079-13086. [PMID: 33095586 DOI: 10.1021/acs.langmuir.0c02539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Oxidative chemical vapor deposition (oCVD) offers unique advantages as a liquid-free processing technique in synthesizing and integrating conducting polymers, including polyaniline (PANI), by enabling conformal coatings onto nanostructured substrates, like carbon nanofibers. With relatively thick nanofiber mats, the challenge is to ensure uniform coating thickness through the porous substrates. Here, the substrate temperature during oCVD is found to be a primary factor influencing PANI coating uniformity. Coating uniformity is enhanced by operating at a higher substrate temperature, where monomer adsorption is believed to be limiting relative to intrinsic reaction kinetics. Also, a higher substrate temperature leads to significantly less PANI oligomers and more PANI in the emeraldine oxidation state. A systematic study of oCVD kinetics with substrate temperature shows a reaction-limited regime at lower substrate temperatures with an activation energy of 12.0 kJ/mol, which is believed to be controlled by the self-catalyzed PANI polymerization reaction that transitions at higher substrate temperatures above 90 °C to an adsorption-limited regime as indicated by a negative activation energy of -18.8 kJ/mol. Overall, by operating within an adsorption-limited oCVD regime, more uniform oCVD PANI coatings on electrospun carbon nanofiber mats have been achieved.
Collapse
Affiliation(s)
- Xiaobo Li
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Ayda Rafie
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Vibha Kalra
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Kenneth K S Lau
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
33
|
Koenig M, Trouillet V, Welle A, Hinrichs K, Lahann J. Molecular Changes in Vapor‐Based Polymer Thin Films Assessed by Characterization of Swelling Properties of Amine‐Functionalized Poly‐
p
‐xylylene. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Meike Koenig
- Karlsruhe Institute of Technology Institute of Functional Interfaces Hermann‐von‐Helmholtz‐Platz 1 Eggenstein‐Leopoldshafen 76344 Germany
| | - Vanessa Trouillet
- Karlsruhe Institute of Technology Institute for Applied Materials Hermann‐von‐Helmholtz‐Platz 1 Eggenstein‐Leopoldshafen 76344 Germany
- Karlsruhe Nano Micro Facility Hermann‐von‐Helmholtz‐Platz 1 Eggenstein‐Leopoldshafen 76344 Germany
| | - Alexander Welle
- Karlsruhe Institute of Technology Institute of Functional Interfaces Hermann‐von‐Helmholtz‐Platz 1 Eggenstein‐Leopoldshafen 76344 Germany
- Karlsruhe Nano Micro Facility Hermann‐von‐Helmholtz‐Platz 1 Eggenstein‐Leopoldshafen 76344 Germany
| | - Karsten Hinrichs
- Leibniz‐Institut für Analytische Wissenschaften ‐ ISAS ‐ e.V. Schwarzschildstr. 8 Berlin 12489 Germany
| | - Joerg Lahann
- Karlsruhe Institute of Technology Institute of Functional Interfaces Hermann‐von‐Helmholtz‐Platz 1 Eggenstein‐Leopoldshafen 76344 Germany
| |
Collapse
|
34
|
|
35
|
Khlyustova A, Cheng Y, Yang R. Vapor-deposited functional polymer thin films in biological applications. J Mater Chem B 2020; 8:6588-6609. [PMID: 32756662 PMCID: PMC7429282 DOI: 10.1039/d0tb00681e] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Functional polymer coatings have become ubiquitous in biological applications, ranging from biomaterials and drug delivery to manufacturing-scale separation of biomolecules using functional membranes. Recent advances in the technology of chemical vapor deposition (CVD) have enabled precise control of the polymer chemistry, coating thickness, and conformality. That comprehensive control of surface properties has been used to elicit desirable interactions at the interface between synthetic materials and living organisms, making vapor-deposited functional polymers uniquely suitable for biological applications. This review captures the recent technological development in vapor-deposited functional polymer coatings, highlighting their biological applications, including membrane-based bio-separations, biosensing and bio-MEMS, drug delivery, and tissue engineering. The conformal nature of vapor-deposited coatings ensures uniform coverage over micro- and nano-structured surfaces, allowing the independent optimization of surface and bulk properties. The substrate-independence of CVD techniques enables facile transfer of surface characteristics among different applications. The vapor-deposited functional polymer thin films tend to be biocompatible because they are free of remnant toxic solvents and precursor molecules, potentially lowering the barrier to clinical success.
Collapse
Affiliation(s)
- Alexandra Khlyustova
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, Ithaca, New York 14850, USA.
| | | | | |
Collapse
|
36
|
Cao R, Qin M, Liu C, Li S, Guo P, Han G, Hu X, Feng W, Chen L. Photo- and Thermosensitive Polymer Membrane with a Tunable Microstructure Doped with Graphene Oxide Nanosheets and Poly( N-isopropylacrylamide) for the Application of Light-Cleaning. ACS APPLIED MATERIALS & INTERFACES 2020; 12:14352-14364. [PMID: 32125815 DOI: 10.1021/acsami.0c00410] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Traditional polymer membranes exhibit a constant structure that makes adjustment of the filtration process difficult, such as flux changing and contaminant cleaning. Inspired by the automatically closing behavior of leaf stomata under strong light, we prepared a membrane with thermo- and photosensitivities, whose microstructure, as well as filtration properties, could be controlled by adjusting the light condition. The membrane was fabricated by the immersion phase inversion method with a casting solution of polyvinylidene fluoride-g-poly(N-isopropylacrylamide) (PVDF-g-PNIPAAm) and graphene oxide (GO) nanosheets. Additionally, the membrane could be heated to a high temperature in a short time under illumination, causing shrinkage of its PNIPAAm chains and expansion of its membrane pores. On the basis of the reversible photoinduced structural transformation, the membrane exhibited a high water gating ratio under the switching of light on/off. Moreover, we proposed a novel and simple method to clear the contaminant from the pores of the membrane via light, which we named "light-cleaning". Light-cleaning had a flux recovery rate of 99.2%, substantially higher than that of back-washing (62%). This work not only extends the controllability and functionality of the polymer membrane but also develops a new membrane cleaning system.
Collapse
Affiliation(s)
- Rong Cao
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
| | - Mengmeng Qin
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
- Tianjin Key Laboratory for Photoelectric Display Materials and Devices, Tianjin 300384, People's Republic of China
- Key Laboratory of Photoelectric Display Materials and Devices, Ministry of Education, Tianjin 300384, People's Republic of China
| | - Chang Liu
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
| | - Shuangwen Li
- School of Materials Engineering, North China Institute of Aerospace Engineering, Langfang 065000, People's Republic of China
| | - Peili Guo
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
| | - Guoying Han
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
| | - Xiaohui Hu
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
| | - Wei Feng
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, People's Republic of China
- Key Laboratory of Materials Processing and Mold, Ministry of Education, Zhengzhou University, Zhengzhou 450002, People's Republic of China
| | - Li Chen
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
- Tianjin Key Laboratory for Photoelectric Display Materials and Devices, Tianjin 300384, People's Republic of China
- Key Laboratory of Photoelectric Display Materials and Devices, Ministry of Education, Tianjin 300384, People's Republic of China
| |
Collapse
|
37
|
Burk MH, Schröder S, Moormann W, Langbehn D, Strunskus T, Rehders S, Herges R, Faupel F. Fabrication of Diazocine-Based Photochromic Organic Thin Films via Initiated Chemical Vapor Deposition. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02443] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maximilian H. Burk
- Institute for Materials Science, Christian-Albrechts-University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Stefan Schröder
- Institute for Materials Science, Christian-Albrechts-University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Widukind Moormann
- Otto-Diels-Institute for Organic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Daniel Langbehn
- Otto-Diels-Institute for Organic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Thomas Strunskus
- Institute for Materials Science, Christian-Albrechts-University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Stefan Rehders
- Institute for Materials Science, Christian-Albrechts-University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Rainer Herges
- Otto-Diels-Institute for Organic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Franz Faupel
- Institute for Materials Science, Christian-Albrechts-University, Kaiserstr. 2, 24143 Kiel, Germany
| |
Collapse
|
38
|
Superhydrophobic modification of cellulose and cotton textiles: Methodologies and applications. JOURNAL OF BIORESOURCES AND BIOPRODUCTS 2020. [DOI: 10.1016/j.jobab.2020.03.001] [Citation(s) in RCA: 230] [Impact Index Per Article: 57.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
|
39
|
Abstract
At the biointerface where materials and microorganisms meet, the organic and synthetic worlds merge into a new science that directs the design and safe use of synthetic materials for biological applications. Vapor deposition techniques provide an effective way to control the material properties of these biointerfaces with molecular-level precision that is important for biomaterials to interface with bacteria. In recent years, biointerface research that focuses on bacteria-surface interactions has been primarily driven by the goals of killing bacteria (antimicrobial) and fouling prevention (antifouling). Nevertheless, vapor deposition techniques have the potential to create biointerfaces with features that can manipulate and dictate the behavior of bacteria rather than killing or deterring them. In this review, we focus on recent advances in antimicrobial and antifouling biointerfaces produced through vapor deposition and provide an outlook on opportunities to capitalize on the features of these techniques to find unexplored connections between surface features and microbial behavior.
Collapse
Affiliation(s)
- Trevor B. Donadt
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Rong Yang
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
| |
Collapse
|
40
|
Subramaniam M, Goh P, Sevgili E, Karaman M, Lau W, Ismail A. Hydroxypropyl methacrylate thin film coating on polyvinylidene fluoride hollow fiber membranes via initiated chemical vapor deposition. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109360] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
41
|
Saboohi S, Short RD, Coad BR, Griesser HJ, Michelmore A. The Physics of Plasma Ion Chemistry: A Case Study of Plasma Polymerization of Ethyl Acetate. J Phys Chem Lett 2019; 10:7306-7310. [PMID: 31710230 DOI: 10.1021/acs.jpclett.9b02855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Deposition chemistry from plasma is highly dependent on both the chemistry of the ions arriving at surfaces and the ion energy. Typically, when measuring the energy distribution of ions arriving at surfaces from plasma, it is assumed that the distributions are the same for all ionic species. Using ethyl acetate as a representative organic precursor molecule, we have measured the ion chemistry and ion energy as a function of pressure and power. We show that at low pressure (<2 Pa) this assumption is valid; however, at elevated pressures ion-molecule collisions close to the deposition surface affect both the energy and chemistry of these ions. Smaller ions are formed close to the surface and have lower energy than larger ionic species which are formed in the bulk of the plasma. The changes in plasma chemistry therefore are closely linked to the physics of the plasma-surface interface.
Collapse
Affiliation(s)
- Solmaz Saboohi
- Future Industries Institute , University of South Australia , Mawson Lakes Campus, Mawson Lakes , Australia , 5095
| | - Robert D Short
- Materials Science Institute and Department of Chemistry , University of Lancaster , City of Lancaster LA1 4YW , U.K
| | - Bryan R Coad
- School of Agriculture, Food and Wine , University of Adelaide , Adelaide , SA 5005 , Australia
| | - Hans J Griesser
- Future Industries Institute , University of South Australia , Mawson Lakes Campus, Mawson Lakes , Australia , 5095
| | - Andrew Michelmore
- Future Industries Institute , University of South Australia , Mawson Lakes Campus, Mawson Lakes , Australia , 5095
- School of Engineering , University of South Australia , Mawson Lakes Campus, Mawson Lakes , Australia , 5095
| |
Collapse
|
42
|
Sayin S, Ozdemir E, Acar E, Ince GO. Multifunctional one-dimensional polymeric nanostructures for drug delivery and biosensor applications. NANOTECHNOLOGY 2019; 30:412001. [PMID: 31347513 DOI: 10.1088/1361-6528/ab2e2c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Advances in nanotechnology in the last decades have paved the way for significant achievements in diagnosis and treatment of various diseases. Different types of functional nanostructures have been explored and utilized as tools for addressing the challenges in detection or treatment of diseases. In particular, one-dimensional nanostructures hold great promise in theranostic applications due to their increased surface area-to-volume ratios, which allow better targeting, increased loading capacity and improved sensitivity to biomolecules. Stable polymeric nanostructures that are stimuli-responsive, biocompatible and biodegradable are especially preferred for bioapplications. In this review, different synthesis techniques of polymeric one-dimensional nanostructures are explored and functionalization methods of these nanostructures for specific applications are explained. Biosensing and drug delibiovery applications of these nanostructures are presented in detail.
Collapse
Affiliation(s)
- Sezin Sayin
- Materials Science and Nano Engineering, Faculty of Engineering and Natural Sciences, Sabanci University, 34956 Istanbul, Turkey
| | | | | | | |
Collapse
|
43
|
|
44
|
Chiang YC, Ho CP, Wang YL, Chen PC, Wang PY, Chen HY. Vapor-Deposited Reactive Coating with Chemically and Topographically Erasable Properties. Polymers (Basel) 2019; 11:E1595. [PMID: 31569561 PMCID: PMC6835693 DOI: 10.3390/polym11101595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/21/2019] [Accepted: 09/26/2019] [Indexed: 11/21/2022] Open
Abstract
An erasable coating was prepared to modify material surfaces with accessibilities, including specific conjugation, elimination of the conjugated chemistry/function, and the reactivation of a second new chemistry/function. The coating was realized based on a vapor-deposited functional poly-p-xylylene coating composed of an integrated 3-((3-methylamido)-disulfanyl)propanoic acid functional group, resulting in not only chemical reactivity, but also a disulfide interchange mechanism. Mechanically, the coating was robust in terms of the thermal stability and adhesive property on a variety of substrate materials. Chemically, the anchoring site of carboxylic acid was accessible for specific conjugation, and a disulfide bridge moiety was used to disengage already installed functions/properties. In addition, the homogeneous nature of the vapor-phased coating technique is known for its morphology/thickness and distribution of the functional moiety, which allowed precision to address the installation or erasure of functions and properties. Characterization of the precisely confined hydrophilic/hydrophobic wetting property and the alternating reversibility of this wetting property on the same surface was achieved.
Collapse
Affiliation(s)
- Yu-Chih Chiang
- School of Dentistry, Graduate Institute of Clinical Dentistry, National Taiwan University and National Taiwan University Hospital, Taipei 10048, Taiwan
| | - Cuei-Ping Ho
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Yin-Lin Wang
- School of Dentistry, Graduate Institute of Clinical Dentistry, National Taiwan University and National Taiwan University Hospital, Taipei 10048, Taiwan
| | - Po-Chun Chen
- Institute of Materials Science and Engineering, National Taipei University of Technology, Taipei 10608, Taiwan;
| | - Peng-Yuan Wang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Department of Chemistry and Biotechnology, Swinburne University of Technology, Victoria 3122, Australia
| | - Hsien-Yeh Chen
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
- Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| |
Collapse
|
45
|
Plasma treatment of polyether-ether-ketone: A means of obtaining desirable biomedical characteristics. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.06.030] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
46
|
|
47
|
Chen Z, Lau KKS. Suppressing Crystallinity by Nanoconfining Polymers Using Initiated Chemical Vapor Deposition. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00496] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhengtao Chen
- Department of Chemical and Biological Engineering, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, United States
| | - Kenneth K. S. Lau
- Department of Chemical and Biological Engineering, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
48
|
Movsesian N, Dianat G, Gupta M. Downstream Monomer Capture and Polymerization during Vapor Phase Fabrication of Porous Membranes. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01315] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nareh Movsesian
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, California 90089, United States
| | - Golnaz Dianat
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, California 90089, United States
| | - Malancha Gupta
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, California 90089, United States
| |
Collapse
|
49
|
Abstract
With the advent of wearable electronic devices in our daily lives, there is a need for soft, flexible, and conformable devices that can provide electronic capabilities without sacrificing comfort. Electronic textiles (e-textiles) combine electronic capabilities of devices such as sensors, actuators, energy harvesting and storage devices, and communication devices with the comfort and conformability of conventional textiles. An important method to fabricate such devices is by coating conventionally used fibers and yarns with electrically conductive materials to create flexible capacitors, resistors, transistors, batteries, and circuits. Textiles constitute an obvious choice for deployment of such flexible electronic components due to their inherent conformability, strength, and stability. Coating a layer of electrically conducting material onto the textile can impart electronic capabilities to the base material in a facile manner. Such a coating can be done at any of the hierarchical levels of the textile structure, i.e., at the fiber, yarn, or fabric level. This review focuses on various electrically conducting materials and methods used for coating e-textile devices, as well as the different configurations that can be obtained from such coatings, creating a smart textile-based system.
Collapse
|
50
|
Novel Physical Methods for Food Preservation. Food Microbiol 2019. [DOI: 10.1128/9781555819972.ch26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|