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Park C, Choi M, Lee S, Kim H, Lee T, Billah MM, Jung B, Jang J. Highly Sensitive, Stretchable Pressure Sensor Using Blue Laser Annealed CNTs. NANOMATERIALS 2022; 12:nano12132127. [PMID: 35807963 PMCID: PMC9268723 DOI: 10.3390/nano12132127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/10/2022] [Accepted: 06/16/2022] [Indexed: 12/11/2022]
Abstract
A piezoresistive sensor is an essential component of wearable electronics that can detect resistance changes when pressure is applied. In general, microstructures of sensing layers have been adopted as an effective approach to enhance piezoresistive performance. However, the mold-casted microstructures typically have quite a thick layer with dozens of microscales. In this paper, a carbon microstructure is formed by blue laser annealing (BLA) on a carbon nanotube (CNT) layer, which changes the surface morphology of CNTs into carbonaceous protrusions and increases its thickness more than four times compared to the as-deposited layer. Then, the pressure sensor is fabricated using a spin-coating of styrene–ethylene–butylene–styrene (SEBS) elastomer on the BLA CNTs layer. A 1.32 µm-thick pressure sensor exhibits a high sensitivity of 6.87 × 105 kPa−1, a wide sensing range of 278 Pa~40 kPa and a fast response/recovery time of 20 ms, respectively. The stability of the pressure sensor is demonstrated by the repeated loading and unloading of 20 kPa for 4000 cycles. The stretchable pressure sensor was also demonstrated using lateral CNT electrodes on SEBS surface, exhibiting stable pressure performance, with up to 20% stretching.
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Interfaces Based on Laser-Structured Arrays of Carbon Nanotubes with Albumin for Electrical Stimulation of Heart Cell Growth. Polymers (Basel) 2022; 14:polym14091866. [PMID: 35567036 PMCID: PMC9102927 DOI: 10.3390/polym14091866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/24/2022] [Accepted: 04/28/2022] [Indexed: 12/12/2022] Open
Abstract
Successful formation of electronic interfaces between living cells and electronic components requires both good cell viability and performance level. This paper presents a technology for the formation of nanostructured arrays of multi-walled carbon nanotubes (MWCNT) in biopolymer (albumin) layer for higher biocompatibility. The layer of liquid albumin dispersion was sprayed on synthesized MWCNT arrays by deposition system. These nanostructures were engineered using the nanosecond pulsed laser radiation mapping in the near-IR spectral range (λ = 1064 nm). It was determined that the energy density of 0.015 J/cm2 provided a sufficient structuring of MWCNT. The structuring effect occurred during the formation of C–C bonds simultaneously with the formation of a cellular structure of nanotubes in the albumin matrix. It led to a decrease in the nanotube defectiveness, which was observed during the Raman spectroscopy. In addition, laser structuring led to a more than twofold increase in the electrical conductivity of MWCNT arrays with albumin (215.8 ± 10 S/m). Successful electric stimulation of cells on the interfaces with the system based on a culture plate was performed, resulting in the enhanced cell proliferation. Overall, the MWCNT laser-structured arrays with biopolymers might be a promising material for extended biomedical applications.
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Qu H, Wu X, Fortner J, Kim M, Wang P, Wang Y. Reconfiguring Organic Color Centers on the sp 2 Carbon Lattice of Single-Walled Carbon Nanotubes. ACS NANO 2022; 16:2077-2087. [PMID: 35040631 DOI: 10.1021/acsnano.1c07669] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Organic color centers (OCCs) are atomic defects that can be synthetically created in single-walled carbon nanotube hosts to enable the emission of shortwave infrared single photons at room temperature. However, all known chemistries developed thus far to generate these quantum defects produce a variety of bonding configurations, posing a formidable challenge to the synthesis of identical, uniformly emitting color centers. Herein, we show that laser irradiation of the nanotube host can locally reconfigure the chemical bonding of aryl OCCs on (6,5) nanotubes to significantly reduce their spectral inhomogeneity. After irradiation the defect emission narrows in distribution by ∼26% to yield a single photoluminescence peak. We use hyperspectral photoluminescence imaging to follow this structural transformation on the single nanotube level. Density functional theory calculations corroborate our experimental observations, suggesting that the OCCs convert from kinetic structures to the more thermodynamically stable configuration. This approach may enable localized tuning and creation of identical OCCs for emerging applications in bioimaging, molecular sensing, and quantum information sciences.
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Affiliation(s)
- Haoran Qu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Xiaojian Wu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Jacob Fortner
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Mijin Kim
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Peng Wang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - YuHuang Wang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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Alharbi TMD, Vimalanathan K, Alsulami IK, Raston CL. Vertically aligned laser sliced MWCNTs. NANOSCALE 2019; 11:21394-21403. [PMID: 31674619 DOI: 10.1039/c9nr08715j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Applications of multi-walled carbon nanotubes (MWCNTs) benefit from the availability of specific lengths of the material while keeping the outer walls pristine, for example, for applications requiring vertically aligned tubes. To this end, a simple and effective continuous flow 'top down' process to control the length of sliced MWCNTs has been developed using a vortex fluidic device (VFD) coupled with a 1064 nm pulse laser, with the process in the absence of chemicals and any auxiliary substances. Three different length distributions of the sliced MWCNTs, centered at 75 ± 2.1 nm, 300 ± 1.8 nm and 550 ± 1.4 nm, have been generated with the length depending on the VFD operating parameters and laser energy, with the processing resulting in a decrease in side wall defects of the material. We also show the ability to vertically self assemble short MWCNTs on a silicon substrate with control of the surface density coverage using a simple dipping and rinsing method.
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Affiliation(s)
- Thaar M D Alharbi
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, SA 5001, Australia. and Physics Department, Faculty of Science, Taibah University, Almadinah Almunawarrah 42353, Saudi Arabia
| | - Kasturi Vimalanathan
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, SA 5001, Australia.
| | - Ibrahim K Alsulami
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, SA 5001, Australia.
| | - Colin L Raston
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, SA 5001, Australia.
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Bulmer JS, Gspann TS, Orozco F, Sparkes M, Koerner H, Di Bernardo A, Niemiec A, Robinson JWA, Koziol KK, Elliott JA, O'Neill W. Photonic Sorting of Aligned, Crystalline Carbon Nanotube Textiles. Sci Rep 2017; 7:12977. [PMID: 29021547 PMCID: PMC5636898 DOI: 10.1038/s41598-017-12605-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 09/04/2017] [Indexed: 11/09/2022] Open
Abstract
Floating catalyst chemical vapor deposition uniquely generates aligned carbon nanotube (CNT) textiles with individual CNT lengths magnitudes longer than competing processes, though hindered by impurities and intrinsic/extrinsic defects. We present a photonic-based post-process, particularly suited for these textiles, that selectively removes defective CNTs and other carbons not forming a threshold thermal pathway. In this method, a large diameter laser beam rasters across the surface of a partly aligned CNT textile in air, suspended from its ends. This results in brilliant, localized oxidation, where remaining material is an optically transparent film comprised of few-walled CNTs with profound and unique improvement in microstructure alignment and crystallinity. Raman spectroscopy shows substantial D peak suppression while preserving radial breathing modes. This increases the undoped, specific electrical conductivity at least an order of magnitude to beyond that of single-crystal graphite. Cryogenic conductivity measurements indicate intrinsic transport enhancement, opposed to simply removing nonconductive carbons/residual catalyst.
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Affiliation(s)
- John S Bulmer
- Centre for Industrial Photonics, Institute for Manufacturing, University of Cambridge, Cambridge, UK.
| | - Thurid S Gspann
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Francisco Orozco
- Centre for Industrial Photonics, Institute for Manufacturing, University of Cambridge, Cambridge, UK
| | - Martin Sparkes
- Centre for Industrial Photonics, Institute for Manufacturing, University of Cambridge, Cambridge, UK
| | - Hilmar Koerner
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio, USA
| | - A Di Bernardo
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Arkadiusz Niemiec
- Centre for Industrial Photonics, Institute for Manufacturing, University of Cambridge, Cambridge, UK
| | - J W A Robinson
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Krzysztof K Koziol
- Cranfield University, School of Aerospace, Transport and Manufacturing,Cranfield, Bedfordshire, MK43 0AL, United Kingdom
| | - James A Elliott
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - William O'Neill
- Centre for Industrial Photonics, Institute for Manufacturing, University of Cambridge, Cambridge, UK
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Zhong H, Luo Y, He S, Tang P, Li D, Alonso-Vante N, Feng Y. Electrocatalytic Cobalt Nanoparticles Interacting with Nitrogen-Doped Carbon Nanotube in Situ Generated from a Metal-Organic Framework for the Oxygen Reduction Reaction. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2541-2549. [PMID: 28032991 DOI: 10.1021/acsami.6b14942] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A metal organic framework (MOF), synthesized from cobalt salt, melamine (mela), and 1,4-dicarboxybezene (BDC), was used as precursor to prepare Co/CoNx/N-CNT/C electrocatalyst via heat treatment at different temperature (700-900 °C) under nitrogen atmosphere. Crystallites size and microstrain in the 800 °C heat-treated sample (MOFs-800) were the lowest, whereas the stacking fault value was the highest among the rest of the homemade samples, as attested to by the Williamson-Hall analysis, hence assessing that the structural or/and surface modification of Co nanoparticles (NPs), found in MOFs-800, was different from that in other samples. CNTs in MOFs-800, interacting with Co NPs, were formed on the surface of the support, keeping the hexagonal shape of the initial MOF. Among the three homemade samples, the MOF-800 sample, with the best electrocatalytic performance toward oxygen reduction reaction (ORR) in 0.1 M KOH solution, showed the highest density of CNTs skin on the support, the lowest ID/IG ratio, and the largest N atomic content in form of pyridinic-N, CoNx, pyrrolic-N, graphitic-N, and oxidized-N species. Based on the binding energy shift toward lower energies, a strong interaction between the active site and the support was identified for MOFs-800 sample. The number of electron transfer was 3.8 on MOFs-800, close to the value of 4.0 determined on the Pt/C benchmark, thus implying a fast and efficient multielectron reduction of molecular oxygen on CoNx active sites. In addition, the chronoamperometric response within 24 000 s showed a more stable current density at 0.69 V/RHE on MOFs-800 as compared with that of Pt/C.
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Affiliation(s)
- Haihong Zhong
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , No. 15 Beisanhuan East Road, Beijing 100029, China
| | - Yun Luo
- New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center , Guangzhou, Guangdong 510006, China
| | - Shi He
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , No. 15 Beisanhuan East Road, Beijing 100029, China
| | - Pinggui Tang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , No. 15 Beisanhuan East Road, Beijing 100029, China
| | - Dianqing Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , No. 15 Beisanhuan East Road, Beijing 100029, China
| | | | - Yongjun Feng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , No. 15 Beisanhuan East Road, Beijing 100029, China
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Souza N, Roble M, Diaz-Droguett DE, Mücklich F. Scaling up single-wall carbon nanotube laser annealing: effect on electrical resistance and hydrogen adsorption. RSC Adv 2017. [DOI: 10.1039/c6ra27794b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Electrical resistance and hydrogen adsorption of laser-annealed single-wall carbon nanotube mats.
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Affiliation(s)
- Nicolas Souza
- Department of Materials Science
- Saarland University
- 66123 Saarbrücken
- Germany
| | - Martín Roble
- Instituto de Física
- Facultad de Física
- Pontificia Universidad Católica de Chile
- Santiago
- Chile
| | | | - Frank Mücklich
- Department of Materials Science
- Saarland University
- 66123 Saarbrücken
- Germany
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8
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Souza N, Lasserre F, Blickley A, Zeiger M, Suárez S, Duarte M, Presser V, Mücklich F. Upcycling spent petroleum cracking catalyst: pulsed laser deposition of single-wall carbon nanotubes and silica nanowires. RSC Adv 2016. [DOI: 10.1039/c6ra15479d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
From waste to single-wall carbon nanotubes and silica nanowires: the first high-tech outlet for FC3R.
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Affiliation(s)
- N. Souza
- Department of Materials Science
- Saarland University
- 66123 Saarbrücken
- Germany
| | - F. Lasserre
- Department of Materials Science
- Saarland University
- 66123 Saarbrücken
- Germany
| | - A. Blickley
- Department of Materials Science
- Saarland University
- 66123 Saarbrücken
- Germany
- Department of Materials Science and Engineering
| | - M. Zeiger
- Department of Materials Science
- Saarland University
- 66123 Saarbrücken
- Germany
- INM – Leibniz Institute for New Materials
| | - S. Suárez
- Department of Materials Science
- Saarland University
- 66123 Saarbrücken
- Germany
| | - M. Duarte
- Engineering and Technology School
- Catholic University of Uruguay
- 11600 Montevideo
- Uruguay
| | - V. Presser
- Department of Materials Science
- Saarland University
- 66123 Saarbrücken
- Germany
- INM – Leibniz Institute for New Materials
| | - F. Mücklich
- Department of Materials Science
- Saarland University
- 66123 Saarbrücken
- Germany
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Bocklitz TW, Guo S, Ryabchykov O, Vogler N, Popp J. Raman Based Molecular Imaging and Analytics: A Magic Bullet for Biomedical Applications!? Anal Chem 2015; 88:133-51. [DOI: 10.1021/acs.analchem.5b04665] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Thomas W. Bocklitz
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
| | - Shuxia Guo
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- InfectoGnostics
Forschungscampus Jena e.V., Zentrum für Angewandte Forschung, Philosophenweg 7, 07743 Jena, Germany
| | - Oleg Ryabchykov
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- InfectoGnostics
Forschungscampus Jena e.V., Zentrum für Angewandte Forschung, Philosophenweg 7, 07743 Jena, Germany
| | - Nadine Vogler
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- InfectoGnostics
Forschungscampus Jena e.V., Zentrum für Angewandte Forschung, Philosophenweg 7, 07743 Jena, Germany
| | - Jürgen Popp
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- InfectoGnostics
Forschungscampus Jena e.V., Zentrum für Angewandte Forschung, Philosophenweg 7, 07743 Jena, Germany
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