1
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Wu J, Xu S, Liu X, Zhao J, He Z, Pan A, Wu J. High-precision Helicobacter pylori infection diagnosis using a dual-element multimodal gas sensor array. Analyst 2024; 149:4168-4178. [PMID: 38860637 DOI: 10.1039/d4an00520a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
Helicobacter pylori (H. pylori) is a globally widespread bacterial infection. Early diagnosis of this infection is vital for public and individual health. Prevalent diagnosis methods like the isotope 13C or 14C labelled urea breath test (UBT) are not convenient and may do harm to the human body. The use of cross-response gas sensor arrays (GSAs) is an alternative way for label-free detection of metabolite changes in exhaled breath (EB). However, conventional GSAs are complex to prepare, lack reliability, and fail to discriminate subtle changes in EB due to the use of numerous sensing elements and single dimensional signal. This work presents a dual-element multimodal GSA empowered with multimodal sensing signals including conductance (G), capacitance (C), and dissipation factor (DF) to improve the ability for gas recognition and H. pylori-infection diagnosis. Sensitized by poly(diallyldimethylammonium chloride) (PDDA) and the metal-organic framework material NH2-UiO66, the dual-element graphene oxide (GO)-composite GSAs exhibited a high specific surface area and abundant adsorption sites, resulting in high sensitivity, repeatability, and fast response/recovery speed in all three signals. The multimodal sensing signals with rich sensing features allowed the GSA to detect various physicochemical properties of gas analytes, such as charge transfer and polarization ability, enhancing the sensing capabilities for gas discrimination. The dual-element GSA could differentiate different typical standard gases and non-dehumidified EB samples, demonstrating the advantages in EB analysis. In a case-control clinical study on 52 clinical EB samples, the diagnosis model based on the multimodal GSA achieved an accuracy of 94.1%, a sensitivity of 100%, and a specificity of 90.9% for diagnosing H. pylori infection, offering a promising strategy for developing an accurate, non-invasive and label-free method for disease diagnosis.
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Affiliation(s)
- Jiaying Wu
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, P.R. China.
| | - Shiyuan Xu
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, P.R. China.
| | - Xuemei Liu
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, P.R. China.
| | - Jingwen Zhao
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, P.R. China.
| | - Zhengfu He
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital Zhejiang University School of Medicine, Hangzhou 310016, P.R. China
| | - Aiwu Pan
- Department of Internal Medicine, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou 310009, P.R. China.
| | - Jianmin Wu
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, P.R. China.
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2
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Akhavan S, Najafabadi AT, Mignuzzi S, Jalebi MA, Ruocco A, Paradisanos I, Balci O, Andaji-Garmaroudi Z, Goykhman I, Occhipinti LG, Lidorikis E, Stranks SD, Ferrari AC. Graphene-Perovskite Fibre Photodetectors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400703. [PMID: 38824387 DOI: 10.1002/adma.202400703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 05/13/2024] [Indexed: 06/03/2024]
Abstract
The integration of optoelectronic devices, such as transistors and photodetectors (PDs), into wearables and textiles is of great interest for applications such as healthcare and physiological monitoring. These require flexible/wearable systems adaptable to body motions, thus materials conformable to non-planar surfaces, and able to maintain performance under mechanical distortions. Here, fibre PDs are prepared by combining rolled graphene layers and photoactive perovskites. Conductive fibres (~500 Ωcm-1) are made by rolling single-layer graphene (SLG) around silica fibres, followed by deposition of a dielectric layer (Al2O3 and parylene C), another rolled SLG as a channel, and perovskite as photoactive component. The resulting gate-tunable PD has a response time~9ms, with an external responsivity~22kAW-1 at 488nm for a 1V bias. The external responsivity is two orders of magnitude higher, and the response time one order of magnitude faster, than state-of-the-art wearable fibre-based PDs. Under bending at 4mm radius, up to~80% photocurrent is maintained. Washability tests show~72% of initial photocurrent after 30 cycles, promising for wearable applications.
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Affiliation(s)
- S Akhavan
- Cambridge Graphene Centre, University of Cambridge, JJ Thompson Avenue, Cambridge, CB3 0FA, UK
| | - A Taheri Najafabadi
- Cambridge Graphene Centre, University of Cambridge, JJ Thompson Avenue, Cambridge, CB3 0FA, UK
| | - S Mignuzzi
- Cambridge Graphene Centre, University of Cambridge, JJ Thompson Avenue, Cambridge, CB3 0FA, UK
| | - M Abdi Jalebi
- Cavendish Laboratory, University of Cambridge, JJ Thompson Avenue, Cambridge, CB3 0HE, UK
| | - A Ruocco
- Cambridge Graphene Centre, University of Cambridge, JJ Thompson Avenue, Cambridge, CB3 0FA, UK
- Optical Networks Group, University College London, London, WC1E 6BT, UK
| | - I Paradisanos
- Cambridge Graphene Centre, University of Cambridge, JJ Thompson Avenue, Cambridge, CB3 0FA, UK
| | - O Balci
- Cambridge Graphene Centre, University of Cambridge, JJ Thompson Avenue, Cambridge, CB3 0FA, UK
| | - Z Andaji-Garmaroudi
- Cavendish Laboratory, University of Cambridge, JJ Thompson Avenue, Cambridge, CB3 0HE, UK
| | - I Goykhman
- Cambridge Graphene Centre, University of Cambridge, JJ Thompson Avenue, Cambridge, CB3 0FA, UK
- Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - L G Occhipinti
- Cambridge Graphene Centre, University of Cambridge, JJ Thompson Avenue, Cambridge, CB3 0FA, UK
| | - E Lidorikis
- Department of Materials Science and Engineering, University of Ioannina, Ioannina, 45110, Greece
| | - S D Stranks
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge, CB3 0AS, UK
| | - A C Ferrari
- Cambridge Graphene Centre, University of Cambridge, JJ Thompson Avenue, Cambridge, CB3 0FA, UK
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3
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Wang M, Song YJ, Jiang W, Fornasiero F, Urban JJ, Mi B. Layer-by-layer Assembly of Nanosheets with Matching Size and Shape for More Stable Membrane Structure than Nanosheet-Polymer Assembly. ACS APPLIED MATERIALS & INTERFACES 2024; 16:26568-26579. [PMID: 38717139 PMCID: PMC11129114 DOI: 10.1021/acsami.4c03891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 05/24/2024]
Abstract
Layer-by-layer (LbL) assembly of oppositely charged materials has been widely used as an approach to make two-dimensional (2D) nanosheet-based membranes, which often involves 2D nanosheets being alternately deposited with polymer-based polyelectrolytes to obtain an electrostabilized nanosheet-polymer structure. In this study, we hypothesized that using 2D nanosheets with matching physical properties as both polyanions and polycations may result in a more ordered nanostructure with better stability than a nanosheet-polymer structure. To compare the differences between nanosheet-nanosheet vs nanosheet-polymer structures, we assembled negatively charged molybdenum disulfide nanosheets (MoS2) with either positively charged graphene oxide (PrGO) nanosheets or positively charged polymer (PDDA). Using combined measurements by ellipsometer and quartz crystal microbalance with dissipation, we discovered that the swelling of MoS2-PrGO in ionic solutions was 60% lower than that of MoS2-PDDA membranes. Meanwhile, the MoS2-PrGO membrane retained its permeability upon drying, whereas the permeability of MoS2-PDDA decreased by 40% due to the restacking of MoS2. Overall, the MoS2-PrGO membrane demonstrated a better filtration performance. Additionally, our X-ray photoelectron spectroscopy results and analysis on layer density revealed a clearer transition in material composition during the LbL synthesis of MoS2-PrGO membranes, and the X-ray diffraction pattern suggested its resemblance to an ordered, layer-stacked structure. In conclusion, the MoS2-PrGO membrane made with nanosheets with matching size, shape, and charge density exhibited a much more aligned stacking structure, resulting in reduced membrane swelling under high salinity solutions, controlled restacking, and improved separation performance.
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Affiliation(s)
- Monong Wang
- Department
of Civil and Environmental Engineering, University of California, Berkeley, California 94720, United States
| | - Young-Jin Song
- Department
of Civil and Environmental Engineering, University of California, Berkeley, California 94720, United States
| | - Wenli Jiang
- Department
of Civil and Environmental Engineering, University of California, Berkeley, California 94720, United States
| | - Francesco Fornasiero
- Biosciences
and Biotechnology Division, Lawrence Livermore
National Laboratory, Livermore, California 94550, United States
| | - Jeffrey J. Urban
- Molecular
Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Baoxia Mi
- Department
of Civil and Environmental Engineering, University of California, Berkeley, California 94720, United States
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4
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Thaweeskulchai T, Sakdaphetsiri K, Schulte A. Ten years of laser-induced graphene: impact and future prospect on biomedical, healthcare, and wearable technology. Mikrochim Acta 2024; 191:292. [PMID: 38687361 DOI: 10.1007/s00604-024-06350-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 04/04/2024] [Indexed: 05/02/2024]
Abstract
Since its introduction in 2014, laser-induced graphene (LIG) from commercial polymers has been gaining interests in both academic and industrial sectors. This can be clearly seen from its mass adoption in various fields ranging from energy storage and sensing platforms to biomedical applications. LIG is a 3-dimensional, nanoporous graphene structure with highly tuneable electrical, physical, and chemical properties. LIG can be easily produced by single-step laser scribing at normal room temperature and pressure using easily accessible commercial level laser machines and materials. With the increasing demand for novel wearable devices for biomedical applications, LIG on flexible substrates can readily serve as a technological platform to be further developed for biomedical applications such as point-of-care (POC) testing and wearable devices for healthcare monitoring system. This review will provide a comprehensive grounding on LIG from its inception and fabrication mechanism to the characterization of its key functional properties. The exploration of biomedicals applications in the form of wearable and point-of-care devices will then be presented. Issue of health risk from accidental exposure to LIG will be covered. Then LIG-based wearable devices will be compared to devices of different materials. Finally, we discuss the implementation of Internet of Medical Things (IoMT) to wearable devices and explore and speculate on its potentials and challenges.
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Affiliation(s)
- Thana Thaweeskulchai
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Wang Chan Valley, Rayong, 21210, Thailand.
| | - Kittiya Sakdaphetsiri
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Wang Chan Valley, Rayong, 21210, Thailand
| | - Albert Schulte
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Wang Chan Valley, Rayong, 21210, Thailand
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5
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Ghanem AF, Yassin MA, Cosquer R, Gouanvé F, Espuche E, Abdel Rehim MH. Polycaprolactone composite films infused with hyperbranched polyester/reduced graphene oxide: influence on biodegradability, gas/water transport and antimicrobial properties for sustainable packaging. RSC Adv 2024; 14:5740-5753. [PMID: 38362077 PMCID: PMC10864823 DOI: 10.1039/d3ra08948g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 01/31/2024] [Indexed: 02/17/2024] Open
Abstract
Biodegradable polymers have gained great interest as ecofriendly packaging materials. However, addition of suitable fillers to the polymer matrix enhances their barrier and mechanical properties besides gaining new features such as bactericidal activity. This work deals with investigation of mechanical, gas/water transport properties and biodegradability performance of films based on polycaprolactone (PCL) reinforced by 1wt% of reduced graphene oxide (RGO) or modified graphene (mRG). To achieve this goal, nanosheets of RGO were firstly prepared then their surfaces were modified through in situ polymerization of hyperbranched polyester (PES) to obtain mRG. Then PCL was loaded with both fillers, and the nanocomposite films were prepared by a casting technique. Studying of the thermal properties of the films showed that the addition of RGO or mRG had no influence on the crystallinity of the PCL matrix. Although the mechanical characteristics of the PCL did not change when either filler was added, there was an increase in permeability and diffusivity in the presence of the fillers regardless of their composition. Nevertheless, the nanocomposites demonstrated antimicrobial properties against S. aureus and E. coli as models for Gram-positive and Gram-negative bacteria, respectively. The biodegradability test performed on the prepared film PCL, and those containing 1% of the filler, PCL/RGO, and PCL/mRG, emphasized that the film degradation became pronounced after three months for all samples.
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Affiliation(s)
- Ahmed F Ghanem
- Packing and Packaging Materials Department, National Research Centre Giza Egypt
| | - Mohamed A Yassin
- Packing and Packaging Materials Department, National Research Centre Giza Egypt
- Advanced Materials and Nanotechnology Lab., Center of Excellence, National Research Centre Giza Egypt
| | - Raphael Cosquer
- UMR CNRS 5223, Ingénierie des Matériaux Polymères, Université Claude Bernard Lyon 1 69622 Villeurbanne Cedex France
| | - Fabrice Gouanvé
- UMR CNRS 5223, Ingénierie des Matériaux Polymères, Université Claude Bernard Lyon 1 69622 Villeurbanne Cedex France
| | - Eliane Espuche
- UMR CNRS 5223, Ingénierie des Matériaux Polymères, Université Claude Bernard Lyon 1 69622 Villeurbanne Cedex France
| | - Mona H Abdel Rehim
- Packing and Packaging Materials Department, National Research Centre Giza Egypt
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6
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Hieu NT, Szieberth D, Makkos E. Exploring the mechanism of graphene-oxide reduction by hydrazine in a multi-epoxide environment with DFT calculations. Phys Chem Chem Phys 2024; 26:1917-1928. [PMID: 38115720 DOI: 10.1039/d3cp03574c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Reduction mechanisms between hydrazine and a multi-epoxide arrangement were investigated on a finite-sized graphene-oxide model with density functional theory. Three multistep reaction pathways were explored to examine different graphene-oxide (GO) deoxygenation scenarios. Epoxides sharing the same hexagonal ring show the typical one-by-one elimination of the oxygen functional groups through two protonation steps and the formation of cis-diazine and water. Nevertheless, the migration of one of the epoxy groups to an out-of-ring position has to precede the reduction. When a hexagonal ring separates two epoxy groups, forming a partially reduced surface with two hydroxyl groups is energetically favoured. This reduction product is so stable that it may remain on the surface after the termination of the reduction process. If further deoxygenation occurs, it can lead to surface fragmentation due to the ring opening of the remaining epoxides. The formation of nitrogen-containing functional groups at the edge of the graphene-oxide flake is also considered, and their surface presence is evaluated based on their thermodynamic stabilities.
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Affiliation(s)
- Nguyen Tri Hieu
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, 1111 Budapest, Műegyetem rkp 3, Hungary.
| | - Dénes Szieberth
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, 1111 Budapest, Műegyetem rkp 3, Hungary.
| | - Eszter Makkos
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, 1111 Budapest, Műegyetem rkp 3, Hungary.
- Computation-Driven Chemistry Research Group, HUN-REN, 1111 Budapest, Műegyetem rkp 3, Hungary
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7
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Das P, Ibrahim S, Chakraborty K, Ghosh S, Pal T. Stepwise reduction of graphene oxide and studies on defect-controlled physical properties. Sci Rep 2024; 14:294. [PMID: 38168613 PMCID: PMC10762075 DOI: 10.1038/s41598-023-51040-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 12/29/2023] [Indexed: 01/05/2024] Open
Abstract
Graphene oxide (GO) is a monolayer of oxidized graphene which is a convenient and potential candidate in a wide range of fields of applications like electronics, photonics, optoelectronics, energy storage, catalysis, chemical sensors, and many others. GO is often composed of various oxygen-containing groups such as hydroxyl, carboxyl, and epoxy. One appealing method for achieving graphene-like behavior with sp2 hybridized carbon is the reduction of GO i.e. formation of reduced graphene oxide (RGO). A stepwise reduction GO to form a family of RGO, containing various quantities of oxygen-related defects was carried out. Herein, the defects related chemical and physical properties of GO and the RGO family were studied and reported in an effort to understand how the properties of RGO vary with the reduction rate. Although there are several reports on various features and applications of GO and RGO but a systematic investigation of the variation of the physical and chemical properties in RGO with the varying quantities of oxygeneous defects is imperative for the engineered physical properties in achieving the desired field of applications. We have attempted to look at the role of sp2 and sp3 carbon fractions, which are present in RGO-based systems, and how they affect the electrical, optoelectronic, and adsorption characteristics.
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Affiliation(s)
- Poulomi Das
- Department of Physics, Midnapore College, Midnapore, WB, 721101, India
| | - Sk Ibrahim
- Department of Physics, Vidyasagar University, Midnapore, WB, 721102, India
| | | | - Surajit Ghosh
- Department of Physics, Vidyasagar University, Midnapore, WB, 721102, India.
| | - Tanusri Pal
- Department of Physics, Midnapore College, Midnapore, WB, 721101, India.
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8
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Chudziak T, Montes-García V, Czepa W, Pakulski D, Musiał A, Valentini C, Bielejewski M, Carlin M, Tubaro A, Pelin M, Samorì P, Ciesielski A. A comparative investigation of the chemical reduction of graphene oxide for electrical engineering applications. NANOSCALE 2023; 15:17765-17775. [PMID: 37882733 PMCID: PMC10653029 DOI: 10.1039/d3nr04521h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 10/19/2023] [Indexed: 10/27/2023]
Abstract
The presence of oxygen-containing functional groups on the basal plane and at the edges endows graphene oxide (GO) with an insulating nature, which makes it rather unsuitable for electronic applications. Fortunately, the reduction process makes it possible to restore the sp2 conjugation. Among various protocols, chemical reduction is appealing because of its compatibility with large-scale production. Nevertheless, despite the vast number of reported chemical protocols, their comparative assessment has not yet been the subject of an in-depth investigation, rendering the establishment of a structure-performance relationship impossible. We report a systematic study on the chemical reduction of GO by exploring different reducing agents (hydrazine hydrate, sodium borohydride, ascorbic acid (AA), and sodium dithionite) and reaction times (2 or 12 hours) in order to boost the performance of chemically reduced GO (CrGO) in electronics and in electrochemical applications. In this work, we provide evidence that the optimal reduction conditions should vary depending on the chosen application, whether it is for electrical or electrochemical purposes. CrGO exhibiting a good electrical conductivity (>1800 S m-1) can be obtained by using AA (12 hours of reaction), Na2S2O4 and N2H4 (independent of the reaction time). Conversely, CrGO displaying a superior electrochemical performance (specific capacitance of 211 F g-1, and capacitance retention >99.5% after 2000 cycles) can be obtained by using NaBH4 (12 hours of reaction). Finally, the compatibility of the different CrGOs with wearable and flexible electronics is also demonstrated using skin irritation tests. The strategy described represents a significant advancement towards the development of environmentally friendly CrGOs with ad hoc properties for advanced applications in electronics and energy storage.
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Affiliation(s)
- Tomasz Chudziak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań, Poland
- Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, Poznań, Poland.
| | - Verónica Montes-García
- University of Strasbourg CNRS ISIS UMR 7006, 8 Alleé Gaspard Monge, F-67000 Strasbourg, France.
| | - Włodzimierz Czepa
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań, Poland
- Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, Poznań, Poland.
| | - Dawid Pakulski
- Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, Poznań, Poland.
| | - Andrzej Musiał
- Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, Poznań, Poland.
- Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
| | - Cataldo Valentini
- Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, Poznań, Poland.
| | - Michał Bielejewski
- Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
| | - Michela Carlin
- Department of Life Sciences, University of Trieste, Via Fleming 22, 34127 Trieste, Italy
| | - Aurelia Tubaro
- Department of Life Sciences, University of Trieste, Via Fleming 22, 34127 Trieste, Italy
| | - Marco Pelin
- Department of Life Sciences, University of Trieste, Via Fleming 22, 34127 Trieste, Italy
| | - Paolo Samorì
- University of Strasbourg CNRS ISIS UMR 7006, 8 Alleé Gaspard Monge, F-67000 Strasbourg, France.
| | - Artur Ciesielski
- Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, Poznań, Poland.
- University of Strasbourg CNRS ISIS UMR 7006, 8 Alleé Gaspard Monge, F-67000 Strasbourg, France.
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9
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Yu H, Wu L, Ni B, Chen T. Research Progress on Porous Carbon-Based Non-Precious Metal Electrocatalysts. MATERIALS (BASEL, SWITZERLAND) 2023; 16:3283. [PMID: 37110119 PMCID: PMC10143149 DOI: 10.3390/ma16083283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 06/19/2023]
Abstract
The development of efficient, stable, and economic electrocatalysts are key to the large-scale application of electrochemical energy conversion. Porous carbon-based non-precious metal electrocatalysts are considered to be the most promising materials to replace Pt-based catalysts, which are limited in large-scale applications due to high costs. Because of its high specific surface area and easily regulated structure, a porous carbon matrix is conducive to the dispersion of active sites and mass transfer, showing great potential in electrocatalysis. This review will focus on porous carbon-based non-precious metal electrocatalysts and summarize their new progress, focusing on the synthesis and design of porous carbon matrix, metal-free carbon-based catalysts, non-previous metal monatomic carbon-based catalyst, and non-precious metal nanoparticle carbon-based catalysts. In addition, current challenges and future trends will be discussed for better development of porous carbon-based non-precious metal electrocatalysts.
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10
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Gao T, Wen Y, Li C, Cheng H, Jin XR, Ai X, Yang Y, Zhou KG, Qu L. Electrically Modulated Nanofiltration Membrane Based on an Arch-Bridged Graphene Structure for Multicomponent Molecular Separation. ACS NANO 2023; 17:6627-6637. [PMID: 36961291 DOI: 10.1021/acsnano.2c12361] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Tunable regulation of molecular penetration through porous membranes is highly desirable for membrane applications in the pharmaceutical and medical fields. However, in most previous reports additional reagents or components are usually needed to provide the graphene-based membranes with responsiveness. Herein, we report tunable arch-bridged reduced graphene oxide (rGO) nanofiltration membranes modulated by the applied voltage. Under a finite voltage of 5 V, the rGO membrane could completely reject organic/anionic molecules. With assistance of the voltage, the positive-charge-modified rGO membrane realized the universal rejection of both cationic and anionic dyes, also showing the valid modulation in harsh organic solvents. The efficient electrical modulation depended on the synergetic effects of Donnan repulsion and size exclusion, benefiting from the electric field enhancement in arch-bridged rGO structures. Furthermore, multicomponent separation was achieved by our electrically modulated rGO-based membranes, demonstrating their potential in practical applications such as pharmaceutical industries.
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Affiliation(s)
- Tiantian Gao
- Institute of Molecular Plus, Department of Chemistry, Tianjin University, Tianjin 300072, People's Republic of China
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Ministry of Education, Department of Chemistry, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing 100084, People's Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People's Republic of China
| | - Yeye Wen
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Ministry of Education, Department of Chemistry, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing 100084, People's Republic of China
| | - Chun Li
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Ministry of Education, Department of Chemistry, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing 100084, People's Republic of China
| | - Huhu Cheng
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Ministry of Education, Department of Chemistry, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing 100084, People's Republic of China
- State Key Laboratory of Tribology in Advanced Equipment (SKLT), Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Xiao-Rui Jin
- Institute of Molecular Plus, Department of Chemistry, Tianjin University, Tianjin 300072, People's Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People's Republic of China
| | - Xinyu Ai
- Institute of Molecular Plus, Department of Chemistry, Tianjin University, Tianjin 300072, People's Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People's Republic of China
| | - Yongan Yang
- Institute of Molecular Plus, Department of Chemistry, Tianjin University, Tianjin 300072, People's Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People's Republic of China
| | - Kai-Ge Zhou
- Institute of Molecular Plus, Department of Chemistry, Tianjin University, Tianjin 300072, People's Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People's Republic of China
| | - Liangti Qu
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Ministry of Education, Department of Chemistry, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing 100084, People's Republic of China
- State Key Laboratory of Tribology in Advanced Equipment (SKLT), Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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11
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Wang K, Li S, Chen L, Tian H, Chen C, Fu Y, Du H, Hu Z, Li R, Du Y, Li J, Zhao Q, Du C. E3 ubiquitin ligase OsPIE3 destabilises the B-lectin receptor-like kinase PID2 to control blast disease resistance in rice. THE NEW PHYTOLOGIST 2023; 237:1826-1842. [PMID: 36440499 DOI: 10.1111/nph.18637] [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] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Previous studies have reported that PID2, which encodes a B-lectin receptor-like kinase, is a key gene in the resistance of rice to Magnaporthe oryzae strain ZB15. However, the PID2-mediated downstream signalling events remain largely unknown. The U-box E3 ubiquitin ligase OsPIE3 (PID2-interacting E3) was isolated and confirmed to play key roles in PID2-mediated rice blast resistance. Yeast two-hybrid analysis showed that the armadillo repeat region of OsPIE3 is required for its interaction with PID2. Further investigation demonstrated that OsPIE3 can modify the subcellular localisation of PID2, thus promoting its nuclear recruitment from the plasma membrane for protein degradation in the ubiquitin-proteasome system. Site-directed mutagenesis of a conserved cysteine site (C230S) within the U-box domain of OsPIE3 reduces PID2 translocation and ubiquitination. Genetic analysis suggested that OsPIE3 loss-of-function mutants exhibited enhanced resistance to M. oryzae isolate ZB15, whereas mutants with overexpressed OsPIE3 exhibited reduced resistance. Furthermore, the OsPIE3/PID2-double mutant displayed a similar blast phenotype to that of the PID2 single mutant, suggesting that OsPIE3 is a negative regulator and functions along with PID2 in blast disease resistance. Our findings confirm that the E3 ubiquitin ligase OsPIE3 is necessary for PID2-mediated rice blast disease resistance regulation.
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Affiliation(s)
- Ke Wang
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Shen Li
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Longxin Chen
- Molecular Biology Laboratory, Zhengzhou Normal University, Zhengzhou, 450044, China
| | - Haoran Tian
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Cong Chen
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yihan Fu
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Haitao Du
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Zheng Hu
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Runting Li
- Molecular Biology Laboratory, Zhengzhou Normal University, Zhengzhou, 450044, China
| | - Yanxiu Du
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Junzhou Li
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
| | - Quanzhi Zhao
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
- Rice Industrial Technology Research Institute, Guizhou University, Guiyang, 550025, China
| | - Changqing Du
- Collaborative Innovation Center of Henan Grain Crops, Key Laboratory of Henan Rice Biology, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
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12
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Novel insights into Graphene oxide-based adsorbents for remediation of hazardous pollutants from aqueous solutions: A comprehensive review. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120821] [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]
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13
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Fu H, Wang B, Zhu D, Zhou Z, Bao S, Qu X, Guo Y, Ling L, Zheng S, Duan P, Mao J, Schmidt-Rohr K, Tao S, Alvarez PJJ. Mechanism for selective binding of aromatic compounds on oxygen-rich graphene nanosheets based on molecule size/polarity matching. SCIENCE ADVANCES 2022; 8:eabn4650. [PMID: 35905181 PMCID: PMC9337764 DOI: 10.1126/sciadv.abn4650] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
Selective binding of organic compounds is the cornerstone of many important industrial and pharmaceutical applications. Here, we achieved highly selective binding of aromatic compounds in aqueous solution and gas phase by oxygen-enriched graphene oxide (GO) nanosheets via a previously unknown mechanism based on size matching and polarity matching. Oxygen-containing functional groups (predominately epoxies and hydroxyls) on the nongraphitized aliphatic carbons of the basal plane of GO formed highly polar regions that encompass graphitic regions slightly larger than the benzene ring. This facilitated size match-based interactions between small apolar compounds and the isolated aromatic region of GO, resulting in high binding selectivity relative to larger apolar compounds. The interactions between the functional group(s) of polar aromatics and the epoxy/hydroxyl groups around the isolated aromatic region of GO enhanced binding selectivity relative to similar-sized apolar aromatics. These findings provide opportunities for precision separations and molecular recognition enabled by size/polarity match-based selectivity.
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Affiliation(s)
- Heyun Fu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Bingyu Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Jiangsu 210094, China
| | - Dongqiang Zhu
- Key Laboratory of the Ministry of Education for Earth Surface Processes, School of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Zhicheng Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Shidong Bao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Xiaolei Qu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Yong Guo
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Jiangsu 210098, China
| | - Lan Ling
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Shourong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Pu Duan
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jingdong Mao
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
| | | | - Shu Tao
- Key Laboratory of the Ministry of Education for Earth Surface Processes, School of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Pedro J. J. Alvarez
- Department of Civil and Environmental Engineering, Rice University, Houston, TX 77005, USA
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14
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Liu X, Zhang H. New Generation of Photosensitizers Based on Inorganic Nanomaterials. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2451:213-244. [PMID: 35505021 DOI: 10.1007/978-1-0716-2099-1_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Advance of nanomaterials and nanotechnology has offered new possibilities for photodynamic therapy (PDT). Large amount of different kinds of sensitizers and targeting moieties can now be loaded in nanometer's volume, which not only results in the improvement of the efficacy of PDT, but also enables the control of image-guided PDT with unprecedented precision and variation. This chapter shall overview the recently most studied inorganic nanomaterials for PDT.
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Affiliation(s)
- Xiaomin Liu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China.,Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands.,State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, FineMechanics and Physics, Chinese Academy of Sciences , Changchun, China
| | - Hong Zhang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China. .,Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands.
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15
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Bagheri AR, Aramesh N, Gong Z, Cerda V, Lee HK. Two-dimensional materials as a platform in extraction methods: A review. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116606] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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16
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Mahendran GB, Ramalingam SJ, Rayappan JBB, Gumpu MB, Kumar RG, Lakshmanakumar M, Nesakumar N. Amperometric Detection of Mercury Ions Using Piperazine‐Functionalized Reduced Graphene Oxide as an Efficient Sensing Platform. ChemistrySelect 2022. [DOI: 10.1002/slct.202103601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- G. Balu Mahendran
- PG and Research Department of Chemistry A.V.V.M Sri Pushpam College (Autonomous) Affiliated to Bharathidasan University Poondi, Thanjavur Tamil Nadu 613 503 India
| | - S. Jothi Ramalingam
- PG and Research Department of Chemistry A.V.V.M Sri Pushpam College (Autonomous) Affiliated to Bharathidasan University Poondi, Thanjavur Tamil Nadu 613 503 India
| | - John Bosco Balaguru Rayappan
- School of Electrical & Electronics Engineering SASTRA Deemed to be University Thanjavur 613 401 Tamil Nadu India
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB) SASTRA Deemed to be University Thanjavur 613 401 Tamil Nadu India
| | - Manju Bhargavi Gumpu
- Department of Physics National Institute of Technology Tiruchirappalli 620 015 Tamil Nadu India
| | - Rajendran Ganesh Kumar
- PG and Research Department of Chemistry Pachaiyappa's College Chennai 600 030 Tamil Nadu India
| | - Muthaiyan Lakshmanakumar
- School of Electrical & Electronics Engineering SASTRA Deemed to be University Thanjavur 613 401 Tamil Nadu India
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB) SASTRA Deemed to be University Thanjavur 613 401 Tamil Nadu India
| | - Noel Nesakumar
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB) SASTRA Deemed to be University Thanjavur 613 401 Tamil Nadu India
- School of Chemical & Biotechnology SASTRA Deemed to be University Thanjavur 613 401 Tamil Nadu India
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17
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Chutia A. Adsorption of Transition Metal Catalysts on Carbon Supports: A Theoretical Perspective : Understanding the interaction between catalyst and catalyst supports. JOHNSON MATTHEY TECHNOLOGY REVIEW 2022. [DOI: 10.1595/205651322x16212512135401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Adsorption is a fundamental process which takes place on a catalyst surface before it dissociates, diffuses over the surface and recombines with other adsorbed species to form the final product. Therefore, in theoretical chemistry understanding of the local geometrical and electronic
properties of the adsorbed species on the catalyst surface has been a topic of core focus. In this short review we briefly summarise some of the important developments on theoretical studies related to the adsorption properties of transition metal (TM) catalysts on graphene and graphene-related
carbon materials. Prior to this, we will present a discussion on various forms of carbon materials used as catalyst supports, which will be followed by a brief discussion of the fundamentals of the density functional theory (DFT).
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Affiliation(s)
- Arunabhiram Chutia
- School of Chemistry, University of Lincoln Brayford Pool, Lincoln, LN6 7TS UK
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18
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Non-covalent interactions of graphene surface: Mechanisms and applications. Chem 2022. [DOI: 10.1016/j.chempr.2021.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Lu HW, Kane AA, Parkinson J, Gao Y, Hajian R, Heltzen M, Goldsmith B, Aran K. The promise of graphene-based transistors for democratizing multiomics studies. Biosens Bioelectron 2022; 195:113605. [PMID: 34537553 DOI: 10.1016/j.bios.2021.113605] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/22/2021] [Accepted: 08/29/2021] [Indexed: 12/28/2022]
Abstract
As biological research has synthesized genomics, proteomics, metabolomics, and transcriptomics into systems biology, a new multiomics approach to biological research has emerged. Today, multiomics studies are challenging and expensive. An experimental platform that could unify the multiple omics approaches to measurement could increase access to multiomics data by enabling more individual labs to successfully attempt multiomics studies. Field effect biosensing based on graphene transistors have gained significant attention as a potential unifying technology for such multiomics studies. This review article highlights the outstanding performance characteristics that makes graphene field effect transistor an attractive sensing platform for a wide variety of analytes important to system biology. In addition to many studies demonstrating the biosensing capabilities of graphene field effect transistors, they are uniquely suited to address the challenges of multiomics studies by providing an integrative multiplex platform for large scale manufacturing using the well-established processes of semiconductor industry. Furthermore, the resulting digital data is readily analyzable by machine learning to derive actionable biological insight to address the challenge of data compatibility for multiomics studies. A critical stage of systems biology will be democratizing multiomics study, and the graphene field effect transistor is uniquely positioned to serve as an accessible multiomics platform.
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Affiliation(s)
- Hsiang-Wei Lu
- Keck Graduate Institute, The Claremont Colleges, Claremont, CA, 91711, USA; Cardea Bio, San Diego, CA, 92121, USA
| | | | | | | | - Reza Hajian
- Keck Graduate Institute, The Claremont Colleges, Claremont, CA, 91711, USA; Cardea Bio, San Diego, CA, 92121, USA
| | | | | | - Kiana Aran
- Keck Graduate Institute, The Claremont Colleges, Claremont, CA, 91711, USA; Cardea Bio, San Diego, CA, 92121, USA.
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20
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Verma S, Kim KH. Graphene-based materials for the adsorptive removal of uranium in aqueous solutions. ENVIRONMENT INTERNATIONAL 2022; 158:106944. [PMID: 34689036 DOI: 10.1016/j.envint.2021.106944] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/19/2021] [Accepted: 10/17/2021] [Indexed: 06/13/2023]
Abstract
Ground water contamination by radioactive elements has become a critical issue that can pose significant threats to human health. Adsorption is the most promising approach for the removal of radioactive elements owing to its simplicity, effectiveness, and easy operation. Among the plethora of functional adsorbents, graphene oxide and its derivatives are recognized for their excellent potential as adsorbent with the unique 2D structure, high surface area, and intercalated functional groups. To learn more about their practical applicability, the procedures involved in their preparation and functionalization are described with the microscopic removal mechanism by GO functionalities across varying solution pH. The performance of these adsorbents is assessed further in terms of the basic performance metrics such as partition coefficient. Overall, this article is expected to provide valuable insights into the current status of graphene-based adsorbents developed for uranium removal with a guidance for the future directions in this research field.
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Affiliation(s)
- Swati Verma
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Korea
| | - Ki-Hyun Kim
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Korea.
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21
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Joshi DJ, Koduru JR, Malek NI, Hussain CM, Kailasa SK. Surface modifications and analytical applications of graphene oxide: A review. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116448] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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22
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Witjaksono G, Junaid M, Khir MH, Ullah Z, Tansu N, Saheed MSBM, Siddiqui MA, Ba-Hashwan SS, Algamili AS, Magsi SA, Aslam MZ, Nawaz R. Effect of Nitrogen Doping on the Optical Bandgap and Electrical Conductivity of Nitrogen-Doped Reduced Graphene Oxide. Molecules 2021; 26:6424. [PMID: 34770833 PMCID: PMC8588234 DOI: 10.3390/molecules26216424] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/29/2021] [Accepted: 08/31/2021] [Indexed: 11/16/2022] Open
Abstract
Graphene as a material for optoelectronic design applications has been significantly restricted owing to zero bandgap and non-compatible handling procedures compared with regular microelectronic ones. In this work, nitrogen-doped reduced graphene oxide (N-rGO) with tunable optical bandgap and enhanced electrical conductivity was synthesized via a microwave-assisted hydrothermal method. The properties of the synthesized N-rGO were determined using XPS, FTIR and Raman spectroscopy, UV/vis, as well as FESEM techniques. The UV/vis spectroscopic analysis confirmed the narrowness of the optical bandgap from 3.4 to 3.1, 2.5, and 2.2 eV in N-rGO samples, where N-rGO samples were synthesized with a nitrogen doping concentration of 2.80, 4.53, and 5.51 at.%. Besides, an enhanced n-type electrical conductivity in N-rGO was observed in Hall effect measurement. The observed tunable optoelectrical characteristics of N-rGO make it a suitable material for developing future optoelectronic devices at the nanoscale.
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Affiliation(s)
- Gunawan Witjaksono
- BRI Institute, Jl. Harsono RM No. 2, Ragunan, Jakarta 12550, Passsar Minggu, Indonesia
| | - Muhammad Junaid
- Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia; (M.H.K.); (Z.U.); (M.A.S.); (S.S.B.-H.); (A.S.A.); (S.A.M.); (M.Z.A.)
- Department of Electronic Engineering, Balochistan University of Information Technology, Engineering and Management Sciences, Quetta 87300, Balochistan, Pakistan
| | - Mohd Haris Khir
- Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia; (M.H.K.); (Z.U.); (M.A.S.); (S.S.B.-H.); (A.S.A.); (S.A.M.); (M.Z.A.)
| | - Zaka Ullah
- Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia; (M.H.K.); (Z.U.); (M.A.S.); (S.S.B.-H.); (A.S.A.); (S.A.M.); (M.Z.A.)
| | - Nelson Tansu
- School of Electrical and Electronic Engineering, The University of Adelaide, Adelaide, SA 5005, Australia;
- Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide, SA 5005, Australia
| | | | - Muhammad Aadil Siddiqui
- Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia; (M.H.K.); (Z.U.); (M.A.S.); (S.S.B.-H.); (A.S.A.); (S.A.M.); (M.Z.A.)
| | - Saeed S. Ba-Hashwan
- Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia; (M.H.K.); (Z.U.); (M.A.S.); (S.S.B.-H.); (A.S.A.); (S.A.M.); (M.Z.A.)
| | - Abdullah Saleh Algamili
- Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia; (M.H.K.); (Z.U.); (M.A.S.); (S.S.B.-H.); (A.S.A.); (S.A.M.); (M.Z.A.)
| | - Saeed Ahmed Magsi
- Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia; (M.H.K.); (Z.U.); (M.A.S.); (S.S.B.-H.); (A.S.A.); (S.A.M.); (M.Z.A.)
| | - Muhammad Zubair Aslam
- Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia; (M.H.K.); (Z.U.); (M.A.S.); (S.S.B.-H.); (A.S.A.); (S.A.M.); (M.Z.A.)
| | - Rab Nawaz
- Department of Fundamental Science, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia; or
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23
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Bychko I, Abakumov A, Nikolenko A, Selyshchev OV, Zahn DRT, Khavrus VO, Tang J, Strizhak P. Ethane Direct Dehydrogenation over Carbon Nanotubes and Reduced Graphene Oxide. ChemistrySelect 2021. [DOI: 10.1002/slct.202102493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Igor Bychko
- L. V. Pisarzhevsky Institute of Physical Chemistry of the National Academy of Sciences of Ukraine Nauky Ave. 31 03028 Kyiv Ukraine
| | - Alexander Abakumov
- L. V. Pisarzhevsky Institute of Physical Chemistry of the National Academy of Sciences of Ukraine Nauky Ave. 31 03028 Kyiv Ukraine
| | - Andrii Nikolenko
- Department V. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine Institution Nauky Ave. 41 Kyiv 03028 Ukraine
| | - O. V. Selyshchev
- Semiconductor Physics Chemnitz University of Technology D-09107 Chemnitz Germany
| | - D. R. T. Zahn
- Semiconductor Physics Chemnitz University of Technology D-09107 Chemnitz Germany
| | - Vyacheslav O. Khavrus
- Leibniz Institute for Solid State and Materials Research Dresden Helmholtzstr. 20 D01069 Dresden Germany
| | - Jianguo Tang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University 308 Ningxia Road Qingdao 266071 P. R. China
| | - Peter Strizhak
- L. V. Pisarzhevsky Institute of Physical Chemistry of the National Academy of Sciences of Ukraine Nauky Ave. 31 03028 Kyiv Ukraine
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University 308 Ningxia Road Qingdao 266071 P. R. China
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24
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Kumar A, Srivastava SK, Srivastava M, Prakash R. Electrochemical sensing of pioglitazone hydrochloride on N-doped r-GO modified commercial electrodes. Analyst 2021; 146:3578-3588. [PMID: 33913938 DOI: 10.1039/d1an00224d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In this paper, we explain the electrochemical sensing of commercially available pioglitazone hydrochloride (PIOZ) tablets on a nitrogen (N) doped r-GO (Nr-GO) modified commercial glassy carbon electrode (GCE) and a commercial screen printed graphite electrode (SPGE). Nr-GO is synthesized by the chemical reduction of graphene oxide (GO) and simultaneous insertion of an N-dopant by hydrazine monohydrate. Pristine GO itself is prepared by chemical exfoliation of bulk graphite. Upon chemical reduction, the exfoliated GO sheets restack together leaving behind the doped N-atom as evidenced by XRD and Raman spectroscopy. The N-atom exists in the pyrrolinic and pyridinic form at the edge of graphitic domains which is confirmed by XPS. The as-synthesized Nr-GO is used for the preparation of electro-active electrodes with the help of the GCE and SPGE. These electrodes have the capability to oxidize PIOZ by a diffusion dominated process as evidenced by the impedance spectroscopic technique. The differential pulse voltammetric responses of different concentrations of PIOZ are assessed over the Nr-GO modified GCE and SPGE, which exhibit better limits of detection (LODs) of 67 nM and 29 nM, respectively, compared to those from earlier reports. These assays exhibit non-interfering capability in the presence of various body interferents at pH = 7.0.
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Affiliation(s)
- Ashish Kumar
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, UP, India.
| | - S K Srivastava
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi - 221005, UP, India
| | - Monika Srivastava
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, UP, India.
| | - Rajiv Prakash
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, UP, India.
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25
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Rawal A, Che Man SH, Agarwal V, Yao Y, Thickett SC, Zetterlund PB. Structural Complexity of Graphene Oxide: The Kirigami Model. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18255-18263. [PMID: 33797212 DOI: 10.1021/acsami.1c01157] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Investigation of highly oxidized graphene oxide (GO) by solid-state nuclear magnetic resonance (NMR) spectroscopy has revealed an exceptional level of hitherto undiscovered structural complexity. A number of chemical moieties were observed for the first time, such as terminal esters, furanic carbons, phenolic carbons, and three distinct aromatic and two distinct alkoxy carbon moieties. Quantitative one-dimensional (1D) and two-dimensional (2D) 13C{1H} NMR spectroscopy established the relative populations and connectivity of these different moieties to provide a consistent "local" chemical structure model. An inferred 2 nm GO sheet size from a very large (∼20%) edge carbon fraction by NMR analysis is at odds with the >20 nm sheet size determined from microscopy and dynamic light scattering. A proposed kirigami model where extensive internal cuts/tears in the basal plane provide the necessary edge sites is presented as a resolution to these divergent results. We expect this work to expand the fundamental understanding of this complex material and enable greater control of the GO structure.
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Affiliation(s)
- Aditya Rawal
- NMR Facility, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Siti H Che Man
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Vipul Agarwal
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Yin Yao
- Electron Microscopy Unit, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Stuart C Thickett
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Per B Zetterlund
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
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26
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Liu W, Speranza G. Tuning the Oxygen Content of Reduced Graphene Oxide and Effects on Its Properties. ACS OMEGA 2021; 6:6195-6205. [PMID: 33718710 PMCID: PMC7948250 DOI: 10.1021/acsomega.0c05578] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 02/05/2021] [Indexed: 05/24/2023]
Abstract
The need to recover the graphene properties in terms of electrical and thermal conductivity calls for the application of reduction processes leading to the removal of oxygen atoms from the graphene oxide sheet surface. The recombination of carbon-carbon double bonds causes a partial recovery of the original graphene properties mainly limited by the presence of residual oxygen atoms and lattice defects. However, the loss of polar oxygen-based functional groups renders the material dispersibility rather complicated. In addition, oxygen-containing functional groups are reaction sites useful to further bind active molecules to engineer the reduced graphene sheets. For these reasons, a variety of chemical processes are described in the literature to reduce the graphene oxide. However, it is greatly important to select a chemical process enabling a thin modulation of the residual oxygen content thus tuning the properties of the final product. In this work, we will present a chemical-processing technique based on the hydroiodic acid to carefully control the degree of residual oxidation. Graphene oxides were reduced using hydroiodic acid with concentrations from 0.06 to 0.95 mol L-1. Their properties were characterized in detail and tested, and the results showed that their oxygen content was finely tuned from 33.6 to 10.7 atom %. This allows carefully tailoring the material properties with respect to the desired application, which is exemplified by the variation of the bulk resistance from 92 Ω to 14.8 MΩ of the film from the obtained rGO.
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Affiliation(s)
- Wei Liu
- Fondazione
Bruno Kessler, Via Sommarive 18, Trento 38123, Italy
| | - Giorgio Speranza
- Fondazione
Bruno Kessler, Via Sommarive 18, Trento 38123, Italy
- Department
of Industrial Engineering, University of
Trento, Via Sommarive
9, Trento 38123, Italy
- Istituto
di Fotonica e Nanotecnologie, IFN-CNR, Via Alla Cascata 56/C, Trento 38123, Italy
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27
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Bie C, Yu H, Cheng B, Ho W, Fan J, Yu J. Design, Fabrication, and Mechanism of Nitrogen-Doped Graphene-Based Photocatalyst. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2003521. [PMID: 33458902 DOI: 10.1002/adma.202003521] [Citation(s) in RCA: 146] [Impact Index Per Article: 48.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/13/2020] [Indexed: 06/12/2023]
Abstract
Solving energy and environmental problems through solar-driven photocatalysis is an attractive and challenging topic. Hence, various types of photocatalysts have been developed successively to address the demands of photocatalysis. Graphene-based materials have elicited considerable attention since the discovery of graphene. As a derivative of graphene, nitrogen-doped graphene (NG) particularly stands out. Nitrogen atoms can break the undifferentiated structure of graphene and open the bandgap while endowing graphene with an uneven electron density distribution. Therefore, NG retains nearly all the advantages of original graphene and is equipped with several novel properties, ensuring infinite possibilities for NG-based photocatalysis. This review introduces the atomic and band structures of NG, summarizes in situ and ex situ synthesis methods, highlights the mechanism and advantages of NG in photocatalysis, and outlines its applications in different photocatalysis directions (primarily hydrogen production, CO2 reduction, pollutant degradation, and as photoactive ingredient). Lastly, the central challenges and possible improvements of NG-based photocatalysis in the future are presented. This study is expected to learn from the past and achieve progress toward the future for NG-based photocatalysis.
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Affiliation(s)
- Chuanbiao Bie
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
| | - Huogen Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Bei Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Wingkei Ho
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, N. T., Hong Kong, 999077, P. R. China
| | - Jiajie Fan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
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28
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Engineering tunable conductivity, p-n junction and light-harvesting semi-conductivity of graphene oxide by fixing reduction mood only. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.03.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Metal-free nitrogen-doped graphenic materials as cathode catalysts for the oxygen reduction reaction in polymer electrolyte membrane fuel cells. J APPL ELECTROCHEM 2021. [DOI: 10.1007/s10800-021-01532-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Recent trends in Nitrogen doped polymer composites: a review. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02436-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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31
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Wu J, Jia L, Zhang Y, Qu Y, Jia B, Moss DJ. Graphene Oxide for Integrated Photonics and Flat Optics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006415. [PMID: 33258178 DOI: 10.1002/adma.202006415] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/05/2020] [Indexed: 05/15/2023]
Abstract
With superior optical properties, high flexibility in engineering its material properties, and strong capability for large-scale on-chip integration, graphene oxide (GO) is an attractive solution for on-chip integration of 2D materials to implement functional integrated photonic devices capable of new features. Over the past decade, integrated GO photonics, representing an innovative merging of integrated photonic devices and thin GO films, has experienced significant development, leading to a surge in many applications covering almost every field of optical sciences such as photovoltaics, optical imaging, sensing, nonlinear optics, and light emitting. This paper reviews the recent advances in this emerging field, providing an overview of the optical properties of GO as well as methods for the on-chip integration of GO. The main achievements made in GO hybrid integrated photonic devices for diverse applications are summarized. The open challenges as well as the potential for future improvement are also discussed.
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Affiliation(s)
- Jiayang Wu
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Linnan Jia
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Yuning Zhang
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Yang Qu
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Baohua Jia
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - David J Moss
- Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
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32
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Ma H, Ma G, Qi Y, Wang Y, Chen Q, Rout KR, Fuglerud T, Chen D. Nitrogen-Doped Carbon-Assisted One-pot Tandem Reaction for Vinyl Chloride Production via Ethylene Oxychlorination. Angew Chem Int Ed Engl 2020; 59:22080-22085. [PMID: 32786102 PMCID: PMC7756741 DOI: 10.1002/anie.202006729] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 07/22/2020] [Indexed: 11/25/2022]
Abstract
A bifunctional catalyst comprising CuCl2 /Al2 O3 and nitrogen-doped carbon was developed for an efficient one-pot ethylene oxychlorination process to produce vinyl chloride monomer (VCM) up to 76 % yield at 250 °C and under ambient pressure, which is higher than the conventional industrial two-step process (≈50 %) in a single pass. In the second bed, active sites containing N-functional groups on the metal-free N-doped carbon catalyzed both ethylene oxychlorination and ethylene dichloride (EDC) dehydrochlorination under the mild conditions. Benefitting from the bifunctionality of the N-doped carbon, VCM formation was intensified by the surface Cl*-looping of EDC dehydrochlorination and ethylene oxychlorination. Both reactions were enhanced by in situ consumption of surface Cl* by oxychlorination, in which Cl* was generated by EDC dehydrochlorination. This work offers a promising alternative pathway to VCM production via ethylene oxychlorination at mild conditions through a single pass reactor.
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Affiliation(s)
- Hongfei Ma
- Department of Chemical EngineeringNorwegian University of Science and Technology (NTNU)Sem sælands vei 47491TrondheimNorway
| | - Guoyan Ma
- College of Chemistry and Chemical EngineeringXi'an Shiyou UniversityXi'an710065ShaanxiChina
- Shaanxi Key Laboratory of Carbon Dioxide Sequestration and Enhanced Oil Recovery (under planning)Xi'an710065ShaanxiChina
| | - Yanying Qi
- Department of Chemical EngineeringNorwegian University of Science and Technology (NTNU)Sem sælands vei 47491TrondheimNorway
| | - Yalan Wang
- Department of Chemical EngineeringNorwegian University of Science and Technology (NTNU)Sem sælands vei 47491TrondheimNorway
| | - Qingjun Chen
- Department of Chemical EngineeringNorwegian University of Science and Technology (NTNU)Sem sælands vei 47491TrondheimNorway
| | - Kumar R. Rout
- Department of Chemical EngineeringNorwegian University of Science and Technology (NTNU)Sem sælands vei 47491TrondheimNorway
- Sintef IndustrySem sælands vei 2A7491TrondheimNorway
| | | | - De Chen
- Department of Chemical EngineeringNorwegian University of Science and Technology (NTNU)Sem sælands vei 47491TrondheimNorway
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33
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Sophisticated rGO synthesis and pre-lithiation unlocking full-cell lithium-ion battery high-rate performances. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.137257] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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34
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Maslekar N, Mat Noor RA, Kuchel RP, Yao Y, Zetterlund PB, Agarwal V. Synthesis of diamine functionalised graphene oxide and its application in the fabrication of electrically conducting reduced graphene oxide/polymer nanocomposite films. NANOSCALE ADVANCES 2020; 2:4702-4712. [PMID: 36132899 PMCID: PMC9418109 DOI: 10.1039/d0na00534g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 08/17/2020] [Indexed: 06/12/2023]
Abstract
The focus of research in diamine functionalised graphene oxide (GO) has been limited to the use of diamines either as crosslinker or to achieve simultaneous functionalisation, reduction and stitching of GO sheets, especially in the case of ethylene diamine (EDA). Controlling the extent of stitching and functionalisation has to date remained a challenge. In particular, synthesis of colloidally stable monofunctionalised GO-NH2 with dangling amine groups using diamines has remained elusive. This has been the limiting factor towards the utility of EDA functionalised GO (GO-NH2) in the field of polymer-based nanocomposites. We have synthesised colloidally stable GO-NH2 with dangling amine groups and subsequently demonstrated its utility as a surfactant to synthesize colloidally stable waterborne polymer nanoparticles with innate affinity to undergo film formation at room temperature. Thermally annealed dropcast polymer/GO-NH2 nanocomposite films exhibited low surface roughness (∼1 μm) due to the homogeneous distribution of functionalised GO sheets within the polymer matrix as observed from confocal laser scanning microscopy, scanning electron microscopy and transmission electron microscopy. The films exhibited considerable electrical conductivity (∼0.8 S m-1), demonstrating the potential of the GO-NH2/polymer nanocomposite for a wide range of applications.
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Affiliation(s)
- Namrata Maslekar
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales Sydney NSW 2052 Australia
| | - Rabiatul A Mat Noor
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales Sydney NSW 2052 Australia
| | - Rhiannon P Kuchel
- Mark Wainwright Analytical Centre, University of New South Wales Sydney NSW 2052 Australia
| | - Yin Yao
- Mark Wainwright Analytical Centre, University of New South Wales Sydney NSW 2052 Australia
| | - Per B Zetterlund
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales Sydney NSW 2052 Australia
| | - Vipul Agarwal
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales Sydney NSW 2052 Australia
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35
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Ma H, Ma G, Qi Y, Wang Y, Chen Q, Rout KR, Fuglerud T, Chen D. Nitrogen‐Doped Carbon‐Assisted One‐pot Tandem Reaction for Vinyl Chloride Production via Ethylene Oxychlorination. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006729] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hongfei Ma
- Department of Chemical Engineering Norwegian University of Science and Technology (NTNU) Sem sælands vei 4 7491 Trondheim Norway
| | - Guoyan Ma
- College of Chemistry and Chemical Engineering Xi'an Shiyou University Xi'an 710065 Shaanxi China
- Shaanxi Key Laboratory of Carbon Dioxide Sequestration and Enhanced Oil Recovery (under planning) Xi'an 710065 Shaanxi China
| | - Yanying Qi
- Department of Chemical Engineering Norwegian University of Science and Technology (NTNU) Sem sælands vei 4 7491 Trondheim Norway
| | - Yalan Wang
- Department of Chemical Engineering Norwegian University of Science and Technology (NTNU) Sem sælands vei 4 7491 Trondheim Norway
| | - Qingjun Chen
- Department of Chemical Engineering Norwegian University of Science and Technology (NTNU) Sem sælands vei 4 7491 Trondheim Norway
| | - Kumar R. Rout
- Department of Chemical Engineering Norwegian University of Science and Technology (NTNU) Sem sælands vei 4 7491 Trondheim Norway
- Sintef Industry Sem sælands vei 2A 7491 Trondheim Norway
| | | | - De Chen
- Department of Chemical Engineering Norwegian University of Science and Technology (NTNU) Sem sælands vei 4 7491 Trondheim Norway
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36
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Czepa W, Witomska S, Ciesielski A, Samorì P. Reduced graphene oxide-silsesquioxane hybrid as a novel supercapacitor electrode. NANOSCALE 2020; 12:18733-18741. [PMID: 32970083 DOI: 10.1039/d0nr05226d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Supercapacitor energy storage devices recently garnered considerable attention due to their cost-effectiveness, eco-friendly nature, high power density, moderate energy density, and long-term cycling stability. Such figures of merit render supercapacitors unique energy sources to power portable electronic devices. Among various energy storage materials, graphene-related materials have established themselves as ideal electrodes for the development of elite supercapacitors because of their excellent electrical conductivity, high surface area, outstanding mechanical properties combined with the possibility to tailor various physical and chemical properties via chemical functionalization. Increasing the surface area is a powerful strategy to improve the performance of supercapacitors. Here, modified polyhedral oligosilsesquioxane (POSS) is used to improve the electrochemical performance of reduced graphene oxide (rGO) through the enhancement of porosity and the extension of interlayer space between the sheets allowing efficient electrolyte transport. rGO-POSS hybrids exhibited a high specific capacitance of 174 F g-1, power density reaching 2.25 W cm-3, and high energy density of 41.4 mW h cm-3 endowed by the introduction of POSS spacers. Moreover, these electrode materials display excellent durability reaching >98% retention after 5000 cycles.
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Affiliation(s)
- Włodzimierz Czepa
- Faculty of Chemistry, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 8, 61614 Poznań, Poland
- Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61614 Poznań, Poland
| | - Samanta Witomska
- Faculty of Chemistry, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 8, 61614 Poznań, Poland
- Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61614 Poznań, Poland
| | - Artur Ciesielski
- Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61614 Poznań, Poland
- Université de Strasbourg, CNRS, ISIS, 8 alleé Gaspard Monge, 67000 Strasbourg, France.
| | - Paolo Samorì
- Université de Strasbourg, CNRS, ISIS, 8 alleé Gaspard Monge, 67000 Strasbourg, France.
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37
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38
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Sheelam A, Muneeb A, Talukdar B, Ravindranath R, Huang SJ, Kuo CH, Sankar R. Flexible and free-standing polyvinyl alcohol-reduced graphene oxide-Cu2O/CuO thin films for electrochemical reduction of carbon dioxide. J APPL ELECTROCHEM 2020. [DOI: 10.1007/s10800-020-01450-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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39
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Nguyen DT, Freitag M, Gutheil C, Sotthewes K, Tyler BJ, Böckmann M, Das M, Schlüter F, Doltsinis NL, Arlinghaus HF, Ravoo BJ, Glorius F. Ein auf Arylazopyrazol basierendes N‐heterocyclisches Carben als Photoschalter auf Goldoberflächen: Lichtschaltbare Benetzbarkeit, Austrittsarbeit und Leitwert. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003523] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- D. Thao Nguyen
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
- Center for Soft Nanoscience (SoN) Westfälische Wilhelms-Universität Münster Busso-Peus-Straße 10 48149 Münster Deutschland
| | - Matthias Freitag
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Christian Gutheil
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Kai Sotthewes
- Physics of Interfaces and Nanomaterials MESA+ Institute for Nanotechnology University of Twente P.O. Box 217 7500 AE Enschede Niederlande
| | - Bonnie J. Tyler
- Physikalisches Institut Westfälische Wilhelms-Universität Münster Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
| | - Marcus Böckmann
- Institute for Solid State Theory and Center for Multiscale Theory & Computation Westfälische Wilhelms-Universität Münster Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
| | - Mowpriya Das
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Friederike Schlüter
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
- Center for Soft Nanoscience (SoN) Westfälische Wilhelms-Universität Münster Busso-Peus-Straße 10 48149 Münster Deutschland
| | - Nikos L. Doltsinis
- Institute for Solid State Theory and Center for Multiscale Theory & Computation Westfälische Wilhelms-Universität Münster Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
| | - Heinrich F. Arlinghaus
- Physikalisches Institut Westfälische Wilhelms-Universität Münster Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
| | - Bart Jan Ravoo
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
- Center for Soft Nanoscience (SoN) Westfälische Wilhelms-Universität Münster Busso-Peus-Straße 10 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
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40
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Nguyen DT, Freitag M, Gutheil C, Sotthewes K, Tyler BJ, Böckmann M, Das M, Schlüter F, Doltsinis NL, Arlinghaus HF, Ravoo BJ, Glorius F. An Arylazopyrazole-Based N-Heterocyclic Carbene as a Photoswitch on Gold Surfaces: Light-Switchable Wettability, Work Function, and Conductance. Angew Chem Int Ed Engl 2020; 59:13651-13656. [PMID: 32271973 DOI: 10.1002/anie.202003523] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/08/2020] [Indexed: 12/13/2022]
Abstract
A novel photoresponsive and fully conjugated N-heterocyclic carbene (NHC) has been synthesized that combines the excellent photophysical properties of arylazopyrazoles (AAPs) with an NHC that acts as a robust surface anchor (AAP-BIMe). The formation of self-assembled monolayers (SAMs) on gold was proven by ToF-SIMS and XPS, and the organic film displayed a very high stability at elevated temperatures. This stability was also reflected in a high desorption energy, which was determined by temperature-programmed SIMS measurements. E-/Z-AAP-BIMe@Au photoisomerization resulted in reversible alterations of the surface energy (i.e. wettability), the surface potential (i.e. work function), and the conductance (i.e. resistance). The effects could be explained by the difference in the dipole moment of the isomers. Furthermore, sequential application of a dummy ligand by microcontact printing and subsequent backfilling with AAP-BIMe allowed its patterning on gold. To the best of our knowledge, this is the first example of a photoswitchable NHC on a gold surface. These properties of AAP-BIMe@Au illustrate its suitability as a molecular switch for electronic devices.
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Affiliation(s)
- D Thao Nguyen
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany.,Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster, Busso-Peus-Strasse 10, 48149, Münster, Germany
| | - Matthias Freitag
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Christian Gutheil
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Kai Sotthewes
- Physics of Interfaces and Nanomaterials, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500, AE, Enschede, The Netherlands
| | - Bonnie J Tyler
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149, Münster, Germany
| | - Marcus Böckmann
- Institute for Solid State Theory and Center for Multiscale Theory & Computation, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149, Münster, Germany
| | - Mowpriya Das
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Friederike Schlüter
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany.,Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster, Busso-Peus-Strasse 10, 48149, Münster, Germany
| | - Nikos L Doltsinis
- Institute for Solid State Theory and Center for Multiscale Theory & Computation, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149, Münster, Germany
| | - Heinrich F Arlinghaus
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149, Münster, Germany
| | - Bart Jan Ravoo
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany.,Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster, Busso-Peus-Strasse 10, 48149, Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
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41
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Bharath Kumar M, Awwal Adeshina M, Kang D, Jee Y, Kim T, Choi M, Park J. Enhancement of Birefringence in Reduced Graphene Oxide Doped Liquid Crystal. NANOMATERIALS 2020; 10:nano10050842. [PMID: 32353931 PMCID: PMC7712246 DOI: 10.3390/nano10050842] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/16/2020] [Accepted: 04/26/2020] [Indexed: 11/16/2022]
Abstract
We investigated the effect of reduced graphene oxide (rGO) doping on the birefringence of 5CB liquid crystal (LC). The characteristics of the synthesized rGO and LC-rGO composite with different rGO concentrations were analyzed by atomic force microscopy, X-ray photoelectron spectroscopy, white light polarized microscopy, voltage-dependent transmission measurement, and differential scanning calorimetry. We found that doping LC with an appropriate concentration of rGO enhances the birefringence of the LC. This is mainly due to the improved anisotropy of polarizability, which stems from the high shape anisotropy of rGO. However, the aggregation of rGO reduces the birefringence by decreasing the anisotropy of polarizability as well as the order parameter. Our study shows the promising potential of LC-rGO for developing various electro-optic devices that offer improved electro-optic effects.
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Affiliation(s)
- Mareddi Bharath Kumar
- Department of Electrical Engineering, Kyungpook National University, Daegu 41566, Korea; (M.B.K.); (M.A.A.); (D.K.)
| | - Mohammad Awwal Adeshina
- Department of Electrical Engineering, Kyungpook National University, Daegu 41566, Korea; (M.B.K.); (M.A.A.); (D.K.)
| | - Daekyung Kang
- Department of Electrical Engineering, Kyungpook National University, Daegu 41566, Korea; (M.B.K.); (M.A.A.); (D.K.)
| | - Youngho Jee
- Department Chemistry, Kyungpook National University, Daegu 41566, Korea;
- Cresin Co., Ltd., Gyeongsangbuk-do 40040, Korea
| | - Taewan Kim
- Department of Electrical Engineering and Smart Grid Research Center, Jeonbuk National University, Jeonju 54896, Korea;
| | - Muhan Choi
- School of Electronics Engineering, Kyungpook National University, Daegu 41566, Korea;
| | - Jonghoo Park
- Department of Electrical Engineering, Kyungpook National University, Daegu 41566, Korea; (M.B.K.); (M.A.A.); (D.K.)
- Correspondence:
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Wang Y, Su Y, Fang W, Zhang Y, Li X, Zhang G, Sun W. SnO2/SnS2 nanocomposite anchored on nitrogen-doped RGO for improved photocatalytic reduction of aqueous Cr(VI). POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.01.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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43
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Choi J, Yoon SU, Lee ME, Park SI, Myung Y, Jin HJ, Lee JB, Yun YS. High-performance nanohybrid anode based on FeS2 nanocubes and nitrogen-rich graphene oxide nanoribbons for sodium ion batteries. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.08.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Lee JM, Choi JW, Ahrberg CD, Choi HW, Ha JH, Mun SG, Mo SJ, Chung BG. Generation of tumor spheroids using a droplet-based microfluidic device for photothermal therapy. MICROSYSTEMS & NANOENGINEERING 2020; 6:52. [PMID: 34567663 PMCID: PMC8433304 DOI: 10.1038/s41378-020-0167-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 04/02/2020] [Indexed: 05/21/2023]
Abstract
Despite their simplicity, monolayer cell cultures are not able to accurately predict drug behavior in vivo due to their inability to accurately mimic cell-cell and cell-matrix interactions. In contrast, cell spheroids are able to reproduce these interactions and thus would be a viable tool for testing drug behavior. However, the generation of homogenous and reproducible cell spheroids on a large scale is a labor intensive and slow process compared to monolayer cell cultures. Here, we present a droplet-based microfluidic device for the automated, large-scale generation of homogenous cell spheroids in a uniform manner. Using the microfluidic system, the size of the spheroids can be tuned to between 100 and 130 μm with generation frequencies of 70 Hz. We demonstrated the photothermal therapy (PTT) application of brain tumor spheroids generated by the microfluidic device using a reduced graphene oxide-branched polyethyleneimine-polyethylene glycol (rGO-BPEI-PEG) nanocomposite as the PTT agent. Furthermore, we generated uniformly sized neural stem cell (NSC)-derived neurospheres in the droplet-based microfluidic device. We also confirmed that the neurites were regulated by neurotoxins. Therefore, this droplet-based microfluidic device could be a powerful tool for photothermal therapy and drug screening applications.
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Affiliation(s)
- Jong Min Lee
- Department of Mechanical Engineering, Sogang University, Seoul, Korea
- Division of Chemical Industry, Yeungnam University College, Daegu, Republic of Korea
| | - Ji Wook Choi
- Department of Mechanical Engineering, Sogang University, Seoul, Korea
| | | | | | - Jang Ho Ha
- Department of Mechanical Engineering, Sogang University, Seoul, Korea
| | - Seok Gyu Mun
- Department of Biomedical Engineering, Sogang University, Seoul, Korea
| | - Sung Joon Mo
- Department of Biomedical Engineering, Sogang University, Seoul, Korea
| | - Bong Geun Chung
- Department of Mechanical Engineering, Sogang University, Seoul, Korea
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45
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Yap PL, Kabiri S, Auyoong YL, Tran DNH, Losic D. Tuning the Multifunctional Surface Chemistry of Reduced Graphene Oxide via Combined Elemental Doping and Chemical Modifications. ACS OMEGA 2019; 4:19787-19798. [PMID: 31788611 PMCID: PMC6882126 DOI: 10.1021/acsomega.9b02642] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 10/28/2019] [Indexed: 06/02/2023]
Abstract
The synthesis of graphene materials with multiple surface chemistries and functionalities is critical for further improving their properties and broadening their emerging applications. We present a simple chemical approach to obtain bulk quantities of multifunctionalized reduced graphene oxide (rGO) that combines chemical doping and functionalization using the thiol-ene click reaction. Controllable modulation of chemical multifunctionality was achieved by simultaneous nitrogen doping and gradual chemical reduction of graphene oxide (GO) using ammonia and hydrazine, followed by covalent attachment of amino-terminated thiol molecules using the thiol-ene click reaction. A series of N-doped rGO (N-rGO) precursors with different levels of oxygen groups were synthesized by adjusting the amount of reducing agent (hydrazine), followed by subsequent covalent attachment of cysteamine via the thermal thiol-ene click reaction to yield different ratios of mixed functional groups including N (pyrrolic N, graphitic N, and aminic N), S (thioether S, thiophene S, and S oxides), and O (hydroxyl O, carbonyl O, and carboxyl O) on the reduced GO surface. Detailed XPS analysis confirmed the disappearance of unstable pyridinic N in cys-N-rGO and the reduction degree threshold of N-rGO for effective cysteamine modification to take place. Our study establishes a strong correlation between different reduction degrees of N-rGO with several existing oxygen functional groups and addition of new tunable functionalities including covalently attached nitrogen (amino) and sulfur (C-S-C, C=S, and S-O). This simple and versatile approach provides a valuable contribution for practical designing and synthesis of a broad range of functionalized graphene materials with tailorable functionalities, doping levels, and interfacial properties for potential applications such as polymer composites, supercapacitors, electrocatalysis, adsorption, and sensors.
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Affiliation(s)
- Pei Lay Yap
- School
of Chemical Engineering and Advanced Materials and ARC Hub for Graphene
Enabled Industry Transformation, The University
of Adelaide, Adelaide, SA 5005, Australia
| | - Shervin Kabiri
- School
of Chemical Engineering and Advanced Materials and ARC Hub for Graphene
Enabled Industry Transformation, The University
of Adelaide, Adelaide, SA 5005, Australia
- School
of Agriculture, Food and Wine, The University
of Adelaide, PMB 1, Waite
Campus, Glen Osmond, SA 5064, Australia
| | - Yow Loo Auyoong
- Research
& Business Partnerships, Research Services, The University of Adelaide, Adelaide, SA 5000, Australia
| | - Diana N. H. Tran
- School
of Chemical Engineering and Advanced Materials and ARC Hub for Graphene
Enabled Industry Transformation, The University
of Adelaide, Adelaide, SA 5005, Australia
| | - Dusan Losic
- School
of Chemical Engineering and Advanced Materials and ARC Hub for Graphene
Enabled Industry Transformation, The University
of Adelaide, Adelaide, SA 5005, Australia
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46
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Lin Z, Yang Y, Li M, Huang H, Hu W, Cheng L, Yan W, Yu Z, Mao K, Xia G, Lu J, Jiang P, Yang K, Zhang R, Xu P, Wang C, Hu L, Chen Q. Dual Graphitic‐N Doping in a Six‐Membered C‐Ring of Graphene‐Analogous Particles Enables an Efficient Electrocatalyst for the Hydrogen Evolution Reaction. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908210] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhiyu Lin
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Yang Yang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Mengsi Li
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Hao Huang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Wei Hu
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Ling Cheng
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Wensheng Yan
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Zhiwu Yu
- The Anhui Key Laboratory of Condensed Mater Physics at Extreme ConditionsHigh Magnetic Field LaboratoryHefei Institutes of Physical ScienceChinese Academy of Sciences Hefei 230031 P. R. China
| | - Kaitian Mao
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Guoliang Xia
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Jian Lu
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Peng Jiang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Kang Yang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Ruirui Zhang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Pengping Xu
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Changlai Wang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Lin Hu
- The Anhui Key Laboratory of Condensed Mater Physics at Extreme ConditionsHigh Magnetic Field LaboratoryHefei Institutes of Physical ScienceChinese Academy of Sciences Hefei 230031 P. R. China
| | - Qianwang Chen
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
- The Anhui Key Laboratory of Condensed Mater Physics at Extreme ConditionsHigh Magnetic Field LaboratoryHefei Institutes of Physical ScienceChinese Academy of Sciences Hefei 230031 P. R. China
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47
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Lin Z, Yang Y, Li M, Huang H, Hu W, Cheng L, Yan W, Yu Z, Mao K, Xia G, Lu J, Jiang P, Yang K, Zhang R, Xu P, Wang C, Hu L, Chen Q. Dual Graphitic‐N Doping in a Six‐Membered C‐Ring of Graphene‐Analogous Particles Enables an Efficient Electrocatalyst for the Hydrogen Evolution Reaction. Angew Chem Int Ed Engl 2019; 58:16973-16980. [DOI: 10.1002/anie.201908210] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/14/2019] [Indexed: 01/06/2023]
Affiliation(s)
- Zhiyu Lin
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Yang Yang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Mengsi Li
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Hao Huang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Wei Hu
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Ling Cheng
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Wensheng Yan
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Zhiwu Yu
- The Anhui Key Laboratory of Condensed Mater Physics at Extreme ConditionsHigh Magnetic Field LaboratoryHefei Institutes of Physical ScienceChinese Academy of Sciences Hefei 230031 P. R. China
| | - Kaitian Mao
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Guoliang Xia
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Jian Lu
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Peng Jiang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Kang Yang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Ruirui Zhang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Pengping Xu
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Changlai Wang
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Lin Hu
- The Anhui Key Laboratory of Condensed Mater Physics at Extreme ConditionsHigh Magnetic Field LaboratoryHefei Institutes of Physical ScienceChinese Academy of Sciences Hefei 230031 P. R. China
| | - Qianwang Chen
- Hefei National Laboratory for Physical Science at MicroscaleDepartment of Materials Science & EngineeringNational Synchrotron Radiation Laboratory, and Collaborative Innovation Center of Suzhou Nano Science and TechnologyUniversity of Science and Technology of China Hefei 230026 P. R. China
- The Anhui Key Laboratory of Condensed Mater Physics at Extreme ConditionsHigh Magnetic Field LaboratoryHefei Institutes of Physical ScienceChinese Academy of Sciences Hefei 230031 P. R. China
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48
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Enhanced performance of pyrrolic N-doped reduced graphene oxide-modified glassy carbon electrodes for dopamine sensing. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113547] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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49
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Lin L, Fu L, Zhang K, Chen J, Zhang W, Tang S, Du Y, Tang N. P-Superdoped Graphene: Synthesis and Magnetic Properties. ACS APPLIED MATERIALS & INTERFACES 2019; 11:39062-39067. [PMID: 31564093 DOI: 10.1021/acsami.9b11505] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Phosphorus (P)-doping in vacancies of graphene sheets can significantly change graphene's physical and chemical properties. Generally, a high level for P-doping is difficult due to the low concentration of vacancy but is needed to synthesize graphene with the perfect properties. Herein, we synthesized the P-superdoped graphene with the very high P content of 6.40 at. % by thermal annealing of fluorographite (FGi) in P vapor. Moreover, we show that the P-doping level can be adjusted in the wide range from 2.86 to 6.40 at. % by changing the mass ratio of red phosphorus to FGi. The magnetic results show that (i) P-doping can effectively create localized magnetic moments in graphene; (ii) the higher the doping level of sp3-type POx groups, the higher the magnetization of P-superdoped graphene is; and (iii) the high P-doping levels can lead to the coexistence of antiferromagnetic and ferromagnetic behavior. It is proposed that the sp3-type POx groups are the major magnetic sources.
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Affiliation(s)
- Lihua Lin
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , China
- University Physics Experiment Center , University of Shanghai for Science and Technology , Shanghai 200093 , China
| | - Lin Fu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , China
| | - Kaiyu Zhang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , China
| | - Jie Chen
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , China
| | - Weili Zhang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , China
| | - Shaolong Tang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , China
| | - Youwei Du
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , China
| | - Nujiang Tang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , China
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50
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Seibers Z, Orr M, Collier GS, Henriquez A, Gabel M, Shofner ML, La Saponara V, Reynolds J. Chemically Functionalized Reduced Graphene Oxide as Additives in Polyethylene Composites for Space Applications. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25262] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zach Seibers
- School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics (COPE), Georgia Tech Polymer Network (GTPN) Georgia Institute of Technology Atlanta Georgia 30332
| | - Matthew Orr
- School of Materials Science and Engineering, and Renewable Bioproducts Institute Georgia Institute of Technology Atlanta Georgia 30332
| | - Graham S. Collier
- School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics (COPE), Georgia Tech Polymer Network (GTPN) Georgia Institute of Technology Atlanta Georgia 30332
| | - Adriana Henriquez
- Department of Mechanical and Aerospace Engineering University of California Davis California 95616
| | - Matthew Gabel
- Department of Mechanical and Aerospace Engineering University of California Davis California 95616
| | - Meisha L. Shofner
- School of Materials Science and Engineering, and Renewable Bioproducts Institute Georgia Institute of Technology Atlanta Georgia 30332
| | - Valeria La Saponara
- Department of Mechanical and Aerospace Engineering University of California Davis California 95616
| | - John Reynolds
- School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics (COPE), Georgia Tech Polymer Network (GTPN) Georgia Institute of Technology Atlanta Georgia 30332
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