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Guo J, Wang Y, Zhang H, Zhao Y. Conductive Materials with Elaborate Micro/Nanostructures for Bioelectronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110024. [PMID: 35081264 DOI: 10.1002/adma.202110024] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/21/2022] [Indexed: 06/14/2023]
Abstract
Bioelectronics, an emerging field with the mutual penetration of biological systems and electronic sciences, allows the quantitative analysis of complicated biosignals together with the dynamic regulation of fateful biological functions. In this area, the development of conductive materials with elaborate micro/nanostructures has been of great significance to the improvement of high-performance bioelectronic devices. Thus, here, a comprehensive and up-to-date summary of relevant research studies on the fabrication and properties of conductive materials with micro/nanostructures and their promising applications and future opportunities in bioelectronic applications is presented. In addition, a critical analysis of the current opportunities and challenges regarding the future developments of conductive materials with elaborate micro/nanostructures for bioelectronic applications is also presented.
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Affiliation(s)
- Jiahui Guo
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yu Wang
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Hui Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yuanjin Zhao
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325001, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Science, Beijing, 100101, China
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Luo S, Mancini A, Berté R, Hoff BH, Maier SA, de Mello JC. Massively Parallel Arrays of Size-Controlled Metallic Nanogaps with Gap-Widths Down to the Sub-3-nm Level. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100491. [PMID: 33939199 DOI: 10.1002/adma.202100491] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/25/2021] [Indexed: 06/12/2023]
Abstract
Metallic nanogaps (MNGs) are fundamental components of nanoscale photonic and electronic devices. However, the lack of reproducible, high-yield fabrication methods with nanometric control over the gap-size has hindered practical applications. A patterning technique based on molecular self-assembly and physical peeling is reported here that allows the gap-width to be tuned from more than 30 nm to less than 3 nm. The ability of the technique to define sub-3-nm gaps between dissimilar metals permits the easy fabrication of molecular rectifiers, in which conductive molecules bridge metals with differing work functions. A method is further described for fabricating massively parallel nanogap arrays containing hundreds of millions of ring-shaped nanogaps, in which nanometric size control is maintained over large patterning areas of up to a square centimeter. The arrays exhibit strong plasmonic resonances under visible light illumination and act as high-performance substrates for surface-enhanced Raman spectroscopy, with high enhancement factors of up to 3 × 108 relative to thin gold films. The methods described here extend the range of metallic nanostructures that can be fabricated over large areas, and are likely to find many applications in molecular electronics, plasmonics, and biosensing.
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Affiliation(s)
- Sihai Luo
- Department of Chemistry, Norwegian University of Science and Technology (NTNU), NO-7491, Trondheim, Norway
| | - Andrea Mancini
- Nano-Institute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, München, 80539, Germany
| | - Rodrigo Berté
- Nano-Institute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, München, 80539, Germany
| | - Bård H Hoff
- Department of Chemistry, Norwegian University of Science and Technology (NTNU), NO-7491, Trondheim, Norway
| | - Stefan A Maier
- Nano-Institute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, München, 80539, Germany
- Blackett Laboratory, Department of Physics, Imperial College London, London, SW7 2AZ, UK
| | - John C de Mello
- Department of Chemistry, Norwegian University of Science and Technology (NTNU), NO-7491, Trondheim, Norway
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Karthäuser S, Peter S, Simon U. Integration of Individual Functionalized Gold Nanoparticles into Nanoelectrode Configurations: Recent Advances. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Silvia Karthäuser
- Peter Grünberg Institut (PGI‐7) and JARA‐FIT Forschungszentrum Jülich GmbH 52425 Jülich Germany
| | - Sophia Peter
- Institute of Inorganic Chemistry and JARA‐FIT RWTH Aachen University 52074 Aachen Germany
| | - Ulrich Simon
- Institute of Inorganic Chemistry and JARA‐FIT RWTH Aachen University 52074 Aachen Germany
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Eklöf-Österberg J, Löfgren J, Erhart P, Moth-Poulsen K. Understanding Interactions Driving the Template-Directed Self-Assembly of Colloidal Nanoparticles at Surfaces. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:4660-4667. [PMID: 32140202 PMCID: PMC7050997 DOI: 10.1021/acs.jpcc.0c00710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Indexed: 06/10/2023]
Abstract
Controlled deposition of colloidal nanoparticles using self-assembly is a promising technique for, for example, manufacturing of miniaturized electronics, and it bridges the gap between top-down and bottom-up methods. However, selecting materials and geometry of the target surface for optimal deposition results presents a significant challenge. Here, we describe a predictive framework based on the Derjaguin-Landau-Verwey-Overbeek theory that allows rational design of colloidal nanoparticle deposition setups. The framework is demonstrated for a model system consisting of gold nanoparticles stabilized by trisodium citrate that are directed toward prefabricated sub-100 nm features on a silicon substrate. Experimental results for the model system are presented in conjunction with theoretical analysis to assess its reliability. It is shown that three-dimensional, nickel-coated structures are well suited for attracting gold nanoparticles and that optimization of the feature geometry based on the proposed framework leads to a systematic improvement in the number of successfully deposited particles.
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Affiliation(s)
- Johnas Eklöf-Österberg
- Department
of Chemistry and Chemical Engineering, Chalmers
University of Technology, Gothenburg 41296, Sweden
| | - Joakim Löfgren
- Department
of Physics, Chalmers University of Technology, Gothenburg 41296, Sweden
| | - Paul Erhart
- Department
of Physics, Chalmers University of Technology, Gothenburg 41296, Sweden
| | - Kasper Moth-Poulsen
- Department
of Chemistry and Chemical Engineering, Chalmers
University of Technology, Gothenburg 41296, Sweden
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Kano S, Kawazu T, Yamazaki A, Fujii M. Digital image analysis for measuring nanogap distance produced by adhesion lithography. NANOTECHNOLOGY 2019; 30:285303. [PMID: 30913554 DOI: 10.1088/1361-6528/ab134f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A simple digital image analysis for measuring nanogap distance produced by adhesion lithography is proposed. Adhesion lithography produces metal electrodes with sub-15 nm undulated space and μm to mm scale width without using electron beam lithography. Although the process has been rapidly improved in recent years, there has been no generalized procedure to evaluate the nanogap distance. In this study, we propose a procedure to evaluate a nanogap electrode with large width/gap distance ratios (>1000). The procedure is to determine the average distance of nanogap space from the area and the perimeter of the space by the analysis of the grayscale image. This procedure excludes any arbitrariness of the estimation and gives quantitative comparison of nanogap electrodes produced by different processes.
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Affiliation(s)
- Shinya Kano
- Department of Electrical and Electronic Engineering, Kobe University, 1-1, Rokkodai, Nada, Kobe, Japan
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Müller C, Ouyang L, Lund A, Moth-Poulsen K, Hamedi MM. From Single Molecules to Thin Film Electronics, Nanofibers, e-Textiles and Power Cables: Bridging Length Scales with Organic Semiconductors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1807286. [PMID: 30785223 DOI: 10.1002/adma.201807286] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 12/19/2018] [Indexed: 05/22/2023]
Abstract
Organic semiconductors are the centerpiece of several vibrant research fields from single-molecule to organic electronics, and they are finding increasing use in bioelectronics and even classical polymer technology. The versatile chemistry and broad range of electronic functionalities of conjugated materials enable the bridging of length scales 15 orders of magnitude apart, ranging from a single nanometer (10-9 m) to the size of continents (106 m). This work provides a taste of the diverse applications that can be realized with organic semiconductors. The reader will embark on a journey from single molecular junctions to thin film organic electronics, supramolecular assemblies, biomaterials such as amyloid fibrils and nanofibrillated cellulose, conducting fibers and yarns for e-textiles, and finally to power cables that shuffle power across thousands of kilometers.
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Affiliation(s)
- Christian Müller
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96, Göteborg, Sweden
| | - Liangqi Ouyang
- Fibre and Polymer Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden
| | - Anja Lund
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96, Göteborg, Sweden
| | - Kasper Moth-Poulsen
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96, Göteborg, Sweden
| | - Mahiar M Hamedi
- Fibre and Polymer Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden
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