1
|
Garcia Lleo M, Sacchetti V, Cacciola C, Medri E, Ligi S, Liscio A, Minelli M. Ready-to-use graphene-related material-added multi-grade oils: characterization and performance in car engine working conditions. RSC Adv 2024; 14:18730-18738. [PMID: 38863818 PMCID: PMC11166019 DOI: 10.1039/d4ra02406k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 05/27/2024] [Indexed: 06/13/2024] Open
Abstract
The need for energy efficiency is leading to the growing use of additives to enhance the performance of oil in automotive engines. Great interest is focused on nano-additives even if to date there is still no practical use in commercial liquid lubricants. Herein, the potential of industrially scalable and low-cost graphene-related materials (GRMs) as additives to enhance the performance of oil in automotive engines is explored. The use of polyalkylmethacrylate dispersants, the most common key additives to formulate "green technology" lubricant oils liquid-processed GRM, is explored, investigating the role of the lateral size and the chemical analysis in the stability of the lubricant GRM dispersions. Showing the maximum duration of stability and a production method that avoids the use of strong oxidants, rheological tests were then focused on multilayered graphene flakes with sub-micrometre lateral size mixed in two commercial oil grades (5W-30 and 5W-40) under conditions similar to those of engine operation. The addition of such a filler increases the viscosity without affecting the Newtonian fluid behavior, while four-ball tests show a reduction in wear, indicating improved lubrication performance. Finally, preliminary bench-test on a commercial car engine showed increased power output corresponding to enhanced engine efficiency. The results clearly indicate the effective improvement in lubricating commercial oils due to GRM additives.
Collapse
Affiliation(s)
| | | | | | - Elena Medri
- Department of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum - University of Bologna (Italy) Bologna Italy
| | - Simone Ligi
- Graphene XT srl Via d'Azeglio, 15 40123 Bologna Italy
| | - Andrea Liscio
- Istituto per la Microelettronica e i Microsistemi, Consiglio Nazionale delle Ricerche Via del Fosso del Cavaliere 100 00133 Roma Italy
| | - Matteo Minelli
- Department of Civil, Chemical, Environmental and Materials Engineering (DICAM), Alma Mater Studiorum - University of Bologna (Italy) Bologna Italy
| |
Collapse
|
2
|
Thorshaug K, Didriksen T, Jensen IT, Almeida Carvalho P, Yang J, Grandcolas M, Ferber A, Booth AM, Ağaç Ö, Alagöz H, Erdoğan N, Kuban A, Belle BD. Orientation of reduced graphene oxide in composite coatings. NANOSCALE ADVANCES 2024; 6:2088-2095. [PMID: 38633045 PMCID: PMC11019492 DOI: 10.1039/d3na01057k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 03/08/2024] [Indexed: 04/19/2024]
Abstract
Composite coatings containing reduced graphene oxide (rGO) and 3-(aminopropyl)triethoxysilane functionalised rGO (APTES-rGO) were prepared by sol-gel technology and deposited on Al 2024 T-3. Covalent functionalisation of GO by APTES occurred by formation of amide bonds, accompanied by GO reduction. The thin sheets were retained. The hydrophilicity of the coating increased when APTES-rGO was added. The opposite was observed when GO was added. A key finding is that the rGO flakes agglomerate and lie in a random orientation in the coating, whereas the APTES-rGO flakes are more evenly distributed in the matrix and appear to lie along the plane of the substrate.
Collapse
Affiliation(s)
| | | | | | | | - Juan Yang
- SINTEF Industri Forskningsveien 1 NO-0373 Oslo Norway
| | | | - Alain Ferber
- SINTEF Digital Forskningsveien 1 NO-0373 Oslo Norway
| | - Andy M Booth
- SINTEF Ocean Brattørkaia 17C NO-7010 Trondheim Norway
| | - Özlem Ağaç
- Nanografi Nanotechnology AS ODTÜ Teknokent No: 13/1-1 06531 Çankaya Ankara Turkey
| | - Hüseyin Alagöz
- Nanografi Nanotechnology AS ODTÜ Teknokent No: 13/1-1 06531 Çankaya Ankara Turkey
| | - Nursev Erdoğan
- Turkish Aerospace, Functional Coatings & Transparencies Technology Centre Ankara Turkey
| | - Anıl Kuban
- Turkish Aerospace, Functional Coatings & Transparencies Technology Centre Ankara Turkey
| | | |
Collapse
|
3
|
Krasley A, Li E, Galeana JM, Bulumulla C, Beyene AG, Demirer GS. Carbon Nanomaterial Fluorescent Probes and Their Biological Applications. Chem Rev 2024; 124:3085-3185. [PMID: 38478064 PMCID: PMC10979413 DOI: 10.1021/acs.chemrev.3c00581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 03/28/2024]
Abstract
Fluorescent carbon nanomaterials have broadly useful chemical and photophysical attributes that are conducive to applications in biology. In this review, we focus on materials whose photophysics allow for the use of these materials in biomedical and environmental applications, with emphasis on imaging, biosensing, and cargo delivery. The review focuses primarily on graphitic carbon nanomaterials including graphene and its derivatives, carbon nanotubes, as well as carbon dots and carbon nanohoops. Recent advances in and future prospects of these fields are discussed at depth, and where appropriate, references to reviews pertaining to older literature are provided.
Collapse
Affiliation(s)
- Andrew
T. Krasley
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Eugene Li
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125, United States
| | - Jesus M. Galeana
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125, United States
| | - Chandima Bulumulla
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Abraham G. Beyene
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Gozde S. Demirer
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125, United States
| |
Collapse
|
4
|
Lombardi L, Kovtun A, Mantovani S, Bertuzzi G, Favaretto L, Bettini C, Palermo V, Melucci M, Bandini M. Visible-Light Assisted Covalent Surface Functionalization of Reduced Graphene Oxide Nanosheets with Arylazo Sulfones. Chemistry 2022; 28:e202200333. [PMID: 35319124 DOI: 10.1002/chem.202200333] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Indexed: 01/05/2023]
Abstract
We present an environmentally benign methodology for the covalent functionalization (arylation) of reduced graphene oxide (rGO) nanosheets with arylazo sulfones. A variety of tagged aryl units were conveniently accommodated at the rGO surface via visible-light irradiation of suspensions of carbon nanostructured materials in aqueous media. Mild reaction conditions, absence of photosensitizers, functional group tolerance and high atomic fractions (XPS analysis) represent some of the salient features characterizing the present methodology. Control experiments for the mechanistic elucidation (Raman analysis) and chemical nanomanipulation of the tagged rGO surfaces are also reported.
Collapse
Affiliation(s)
- Lorenzo Lombardi
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum - Università di Bologna, Via Selmi 2, 40126, Bologna, Italy.,Center for Chemical Catalysis - C3, Via Selmi 2, 40126, Bologna, Italy
| | - Alessandro Kovtun
- Istituto per la Sintesi e la Fotoreattività (ISOF) - CNR, Via Gobetti, 101, 40129, Bologna, Italy
| | - Sebastiano Mantovani
- Istituto per la Sintesi e la Fotoreattività (ISOF) - CNR, Via Gobetti, 101, 40129, Bologna, Italy
| | - Giulio Bertuzzi
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum - Università di Bologna, Via Selmi 2, 40126, Bologna, Italy.,Center for Chemical Catalysis - C3, Via Selmi 2, 40126, Bologna, Italy
| | - Laura Favaretto
- Istituto per la Sintesi e la Fotoreattività (ISOF) - CNR, Via Gobetti, 101, 40129, Bologna, Italy
| | - Cristian Bettini
- Center for Chemical Catalysis - C3, Via Selmi 2, 40126, Bologna, Italy
| | - Vincenzo Palermo
- Istituto per la Sintesi e la Fotoreattività (ISOF) - CNR, Via Gobetti, 101, 40129, Bologna, Italy
| | - Manuela Melucci
- Istituto per la Sintesi e la Fotoreattività (ISOF) - CNR, Via Gobetti, 101, 40129, Bologna, Italy
| | - Marco Bandini
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum - Università di Bologna, Via Selmi 2, 40126, Bologna, Italy.,Center for Chemical Catalysis - C3, Via Selmi 2, 40126, Bologna, Italy
| |
Collapse
|
5
|
Basta L, Moscardini A, Fabbri F, Bellucci L, Tozzini V, Rubini S, Griesi A, Gemmi M, Heun S, Veronesi S. Covalent organic functionalization of graphene nanosheets and reduced graphene oxide via 1,3-dipolar cycloaddition of azomethine ylide. NANOSCALE ADVANCES 2021; 3:5841-5852. [PMID: 36132665 PMCID: PMC9418116 DOI: 10.1039/d1na00335f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 10/06/2021] [Accepted: 08/29/2021] [Indexed: 06/16/2023]
Abstract
Organic functionalization of graphene is successfully performed via 1,3-dipolar cycloaddition of azomethine ylide in the liquid phase. The comparison between 1-methyl-2-pyrrolidinone and N,N-dimethylformamide as dispersant solvents, and between sonication and homogenization as dispersion techniques, proves N,N-dimethylformamide and homogenization as the most effective choice. The functionalization of graphene nanosheets and reduced graphene oxide is confirmed using different techniques. Among them, energy-dispersive X-ray spectroscopy allows to map the pyrrolidine ring of the azomethine ylide on the surface of functionalized graphene, while micro-Raman spectroscopy detects new features arising from the functionalization, which are described in agreement with the power spectrum obtained from ab initio molecular dynamics simulation. Moreover, X-ray photoemission spectroscopy of functionalized graphene allows the quantitative elemental analysis and the estimation of the surface coverage, showing a higher degree of functionalization for reduced graphene oxide. This more reactive behavior originates from the localization of partial charges on its surface due to the presence of oxygen defects, as shown by the simulation of the electrostatic features. Functionalization of graphene using 1,3-dipolar cycloaddition is shown to be a significant step towards the controlled synthesis of graphene-based complex structures and devices at the nanoscale.
Collapse
Affiliation(s)
- Luca Basta
- NEST, Istituto Nanoscienze-CNR, Scuola Normale Superiore Piazza S. Silvestro 12 56127 Pisa Italy +39 050 509882
| | - Aldo Moscardini
- NEST, Istituto Nanoscienze-CNR, Scuola Normale Superiore Piazza S. Silvestro 12 56127 Pisa Italy +39 050 509882
| | - Filippo Fabbri
- NEST, Istituto Nanoscienze-CNR, Scuola Normale Superiore Piazza S. Silvestro 12 56127 Pisa Italy +39 050 509882
| | - Luca Bellucci
- NEST, Istituto Nanoscienze-CNR, Scuola Normale Superiore Piazza S. Silvestro 12 56127 Pisa Italy +39 050 509882
| | - Valentina Tozzini
- NEST, Istituto Nanoscienze-CNR, Scuola Normale Superiore Piazza S. Silvestro 12 56127 Pisa Italy +39 050 509882
| | - Silvia Rubini
- Istituto Officina dei Materiali CNR, Laboratorio TASC Area Science Park - S S 14, km 163.5 I-34012 Trieste Italy
| | - Andrea Griesi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma Parco Area delle Scienze 17/A 43124 Parma Italy
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia Piazza S. Silvestro 12 56127 Pisa Italy
| | - Mauro Gemmi
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia Piazza S. Silvestro 12 56127 Pisa Italy
| | - Stefan Heun
- NEST, Istituto Nanoscienze-CNR, Scuola Normale Superiore Piazza S. Silvestro 12 56127 Pisa Italy +39 050 509882
| | - Stefano Veronesi
- NEST, Istituto Nanoscienze-CNR, Scuola Normale Superiore Piazza S. Silvestro 12 56127 Pisa Italy +39 050 509882
| |
Collapse
|
6
|
Monteiro AR, Neves MGPMS, Trindade T. Functionalization of Graphene Oxide with Porphyrins: Synthetic Routes and Biological Applications. Chempluschem 2021; 85:1857-1880. [PMID: 32845088 DOI: 10.1002/cplu.202000455] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/27/2020] [Indexed: 12/19/2022]
Abstract
Among the available carbon nanomaterials, graphene oxide (GO) has been widely studied because of the possibility of anchoring different chemical species for a large number of applications, including those requiring water-compatible systems. This Review summarizes the state-of-the-art of synthetic routes used to functionalize GO, such as those involving multiple covalent and non-covalent bonds to organic molecules, functionalization with nanoparticles and doping. As a recent development in this field, special focus is given to the formation of nanocomposites comprising GO and porphyrins, and their characterization through spectroscopic techniques (such as UV-Vis, fluorescence, Raman spectroscopy), among others. The potential of such hybrid systems in targeted biological applications is also discussed, namely for cancer therapies relying on photodynamic and photothermal therapies and for the inhibition of telomerase enzyme. Lastly, some promising alternative materials to GO are presented to overcome current challenges of GO-based research and to inspire future research directions in this field.
Collapse
Affiliation(s)
- Ana R Monteiro
- Department of Chemistry, University of Aveiro, CICECO - Aveiro Institute of Materials, 3810-193, Aveiro, Portugal.,Department of Chemistry, University of Aveiro, LAQV - Requimte, 3810-193, Aveiro, Portugal
| | - M Graça P M S Neves
- Department of Chemistry, University of Aveiro, LAQV - Requimte, 3810-193, Aveiro, Portugal
| | - Tito Trindade
- Department of Chemistry, University of Aveiro, CICECO - Aveiro Institute of Materials, 3810-193, Aveiro, Portugal
| |
Collapse
|
7
|
Fabbri R, Saracino E, Treossi E, Zamboni R, Palermo V, Benfenati V. Graphene glial-interfaces: challenges and perspectives. NANOSCALE 2021; 13:4390-4407. [PMID: 33599662 DOI: 10.1039/d0nr07824g] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Graphene nanosheets are mechanically strong but flexible, electrically conductive and bio-compatible. Thus, due to these unique properties, they are being intensively studied as materials for the next generation of neural interfaces. Most of the literature focused on optimizing the interface between these materials and neurons. However, one of the most common causes of implant failure is the adverse inflammatory reaction of glial cells. These cells are not, as previously considered, just passive and supportive cells, but play a crucial role in the physiology and pathology of the nervous system, and in the interaction with implanted electrodes. Besides providing structural support to neurons, glia are responsible for the modulation of synaptic transmission and control of central and peripheral homeostasis. Accordingly, knowledge on the interaction between glia and biomaterials is essential to develop new implant-based therapies for the treatment of neurological disorders, such as epilepsy, brain tumours, and Alzheimer's and Parkinson's disease. This work provides an overview of the emerging literature on the interaction of graphene-based materials with glial cells, together with a complete description of the different types of glial cells and problems associated with them. We believe that this description will be important for researchers working in materials science and nanotechnology to develop new active materials to interface, measure and stimulate these cells.
Collapse
Affiliation(s)
- Roberta Fabbri
- Consiglio Nazionale delle Ricerche, Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF), via Piero Gobetti 101, 40129 Bologna, Italy.
| | | | | | | | | | | |
Collapse
|
8
|
Fang WZ, Peng L, Liu YJ, Wang F, Xu Z, Gao C. A Review on Graphene Oxide Two-dimensional Macromolecules: from Single Molecules to Macro-assembly. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-021-2515-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
9
|
Chronopoulos DD, Medveď M, Potsi G, Tomanec O, Scheibe M, Otyepka M. Tunable one-step double functionalization of graphene based on fluorographene chemistry. Chem Commun (Camb) 2020; 56:1936-1939. [PMID: 32002534 DOI: 10.1039/c9cc09514d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Double functionalized graphene derivatives were synthetized by a one-pot reaction of fluorographene with organometallic nucleophiles. Their nucleophilicity governed the preference for grafting and was utilized for tuning the functionalization. This approach paves the way toward the facile, up-scalable and controllable multifunctionalization of graphene.
Collapse
Affiliation(s)
- Demetrios D Chronopoulos
- Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 27, CZ-771 46 Olomouc, Czech Republic
| | | | | | | | | | | |
Collapse
|
10
|
Kovtun A, Zambianchi M, Bettini C, Liscio A, Gazzano M, Corticelli F, Treossi E, Navacchia ML, Palermo V, Melucci M. Graphene oxide-polysulfone filters for tap water purification, obtained by fast microwave oven treatment. NANOSCALE 2019; 11:22780-22787. [PMID: 31577323 DOI: 10.1039/c9nr06897j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The availability of clean, pure water is a major challenge for the future of our society. 2-Dimensional nanosheets of GO seem promising as nanoporous adsorbent or filters for water purification; however, their processing in macroscopic filters is challenging, and their cost vs. standard polymer filters is too high. Here, we describe a novel approach to combine graphene oxide (GO) sheets with commercial polysulfone (PSU) membranes for improved removal of organic contaminants from water. The adsorption physics of contaminants on the PSU-GO composite follows Langmuir and Brunauer-Emmett-Teller (BET) models, with partial swelling and intercalation of molecules in between the GO layers. Such a mechanism, well-known in layered clays, has not been reported previously for graphene or GO. Our approach requires minimal amounts of GO, deposited directly on the surface of the polymer, followed by stabilization using microwaves or heat. The purification efficiency of the PSU-GO composites is significantly improved vs. benchmark commercial PSU, as demonstrated by the removal of two model contaminants, rhodamine B and ofloxacin. The excellent stability of the composite is confirmed by extensive (100 hours) filtration tests in commercial water cartridges.
Collapse
Affiliation(s)
- Alessandro Kovtun
- Consiglio Nazionale delle Ricerche-Istituto per la Sintesi Organica e la Fotoreattvità (CNR-ISOF), via Piero Gobetti 101, 40129 Bologna, Italy.
| | - Massimo Zambianchi
- Consiglio Nazionale delle Ricerche-Istituto per la Sintesi Organica e la Fotoreattvità (CNR-ISOF), via Piero Gobetti 101, 40129 Bologna, Italy.
| | - Cristian Bettini
- Consiglio Nazionale delle Ricerche-Istituto per la Sintesi Organica e la Fotoreattvità (CNR-ISOF), via Piero Gobetti 101, 40129 Bologna, Italy.
| | - Andrea Liscio
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi, CNR, 40129 Bologna, Italy
| | - Massimo Gazzano
- Consiglio Nazionale delle Ricerche-Istituto per la Sintesi Organica e la Fotoreattvità (CNR-ISOF), via Piero Gobetti 101, 40129 Bologna, Italy.
| | - Franco Corticelli
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi, CNR, 40129 Bologna, Italy
| | - Emanuele Treossi
- Consiglio Nazionale delle Ricerche-Istituto per la Sintesi Organica e la Fotoreattvità (CNR-ISOF), via Piero Gobetti 101, 40129 Bologna, Italy.
| | - Maria Luisa Navacchia
- Consiglio Nazionale delle Ricerche-Istituto per la Sintesi Organica e la Fotoreattvità (CNR-ISOF), via Piero Gobetti 101, 40129 Bologna, Italy.
| | - Vincenzo Palermo
- Consiglio Nazionale delle Ricerche-Istituto per la Sintesi Organica e la Fotoreattvità (CNR-ISOF), via Piero Gobetti 101, 40129 Bologna, Italy. and Industrial and Materials Science, Chalmers University of Technology, 41258 Göteborg, Sweden.
| | - Manuela Melucci
- Consiglio Nazionale delle Ricerche-Istituto per la Sintesi Organica e la Fotoreattvità (CNR-ISOF), via Piero Gobetti 101, 40129 Bologna, Italy.
| |
Collapse
|
11
|
Deeney C, McKiernan EP, Belhout SA, Rodriguez BJ, Redmond G, Quinn SJ. Template-Assisted Synthesis of Luminescent Carbon Nanofibers from Beverage-Related Precursors by Microwave Heating. Molecules 2019; 24:E1455. [PMID: 31013798 PMCID: PMC6515550 DOI: 10.3390/molecules24081455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/05/2019] [Accepted: 04/07/2019] [Indexed: 11/23/2022] Open
Abstract
Luminescent carbon nanomaterials are important materials for sensing, imaging, and display technologies. This work describes the use of microwave heating for the template-assisted preparation of luminescent carbon nanofibers (CNFs) from the reaction of a range of beverage-related precursors with the nitrogen-rich polyethyleneimine. Highly luminescent robust carbon fibers that were 10 to 30 m in length and had a diameter of 200 nm were obtained under moderate conditions of temperature (250-260 °C) and a short reaction time (6 min). The high aspect ratio fibers showed wavelength-dependent emission that can be readily imaged using epifluorescence. The development of these multi-emissive one-dimensional (1D) carbon nanomaterials offers potential for a range of applications.
Collapse
Affiliation(s)
- Clara Deeney
- School of Chemistry, University College Dublin, 4 Dublin, Ireland.
| | - Eoin P McKiernan
- School of Chemistry, University College Dublin, 4 Dublin, Ireland.
| | - Samir A Belhout
- School of Chemistry, University College Dublin, 4 Dublin, Ireland.
| | | | - Gareth Redmond
- School of Chemistry, University College Dublin, 4 Dublin, Ireland.
| | - Susan J Quinn
- School of Chemistry, University College Dublin, 4 Dublin, Ireland.
| |
Collapse
|
12
|
Bellani S, Antognazza MR, Bonaccorso F. Carbon-Based Photocathode Materials for Solar Hydrogen Production. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1801446. [PMID: 30221413 DOI: 10.1002/adma.201801446] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 06/15/2018] [Indexed: 06/08/2023]
Abstract
Hydrogen is considered a promising environmentally friendly energy carrier for replacing traditional fossil fuels. In this context, photoelectrochemical cells effectively convert solar energy directly to H2 fuel by water photoelectrolysis, thereby monolitically combining the functions of both light harvesting and electrolysis. In such devices, photocathodes and photoanodes carry out the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), respectively. Here, the focus is on photocathodes for HER, traditionally based on metal oxides, III-V group and II-VI group semiconductors, silicon, and copper-based chalcogenides as photoactive material. Recently, carbon-based materials have emerged as reliable alternatives to the aforementioned materials. A perspective on carbon-based photocathodes is provided here, critically analyzing recent research progress and outlining the major guidelines for the development of efficient and stable photocathode architectures. In particular, the functional role of charge-selective and protective layers, which enhance both the efficiency and the durability of the photocathodes, is discussed. An in-depth evaluation of the state-of-the-art fabrication of photocathodes through scalable, high-troughput, cost-effective methods is presented. The major aspects on the development of light-trapping nanostructured architectures are also addressed. Finally, the key challenges on future research directions in terms of potential performance and manufacturability of photocathodes are analyzed.
Collapse
Affiliation(s)
- Sebastiano Bellani
- Graphene Labs, Istituto Italiano di Tecnologia, via Morego 30, 16163, Genova, Italy
| | - Maria Rosa Antognazza
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133, Milan, Italy
| | - Francesco Bonaccorso
- Graphene Labs, Istituto Italiano di Tecnologia, via Morego 30, 16163, Genova, Italy
- BeDimensional Srl, via Albisola 121, 16163, Genova, Italy
| |
Collapse
|
13
|
Devi N, Kumar R, Singh RK. Microwave-Assisted Modification of Graphene and Its Derivatives: Synthesis, Reduction and Exfoliation. CARBON NANOSTRUCTURES 2019. [DOI: 10.1007/978-981-32-9057-0_12] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
14
|
Durso M, Borrachero-Conejo AI, Bettini C, Treossi E, Scidà A, Saracino E, Gazzano M, Christian M, Morandi V, Tuci G, Giambastiani G, Ottaviano L, Perrozzi F, Benfenati V, Melucci M, Palermo V. Biomimetic graphene for enhanced interaction with the external membrane of astrocytes. J Mater Chem B 2018; 6:5335-5342. [PMID: 32254499 DOI: 10.1039/c8tb01410h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Graphene and graphene substrates display huge potential as material interfaces for devices and biomedical tools targeting the modulation or recovery of brain functionality. However, to be considered reliable neural interfaces, graphene-derived substrates should properly interact with astrocytes, favoring their growth and avoiding adverse gliotic reactions. Indeed, astrocytes are the most abundant cells in the human brain and they have a crucial physiological role to maintain its homeostasis and modulate synaptic transmission. In this work, we describe a new strategy based on the chemical modification of graphene oxide (GO) with a synthetic phospholipid (PL) to improve interaction of GO with brain astroglial cells. The PL moieties were grafted on GO sheets through polymeric brushes obtained by atom-transfer radical-polymerization (ATRP) between acryloyl-modified PL and GO nanosheets modified with a bromide initiator. The adhesion of primary rat cortical astrocytes on GO-PL substrates increased by about three times with respect to that on glass substrates coated with standard adhesion agents (i.e. poly-d-lysine, PDL) as well as with respect to that on non-functionalized GO. Moreover, we show that astrocytes seeded on GO-PL did not display significant gliotic reactivity, indicating that the material interface did not cause a detrimental inflammatory reaction when interacting with astroglial cells. Our results indicate that the reported biomimetic approach could be applied to neural prosthesis to improve cell colonization and avoid glial scar formation in brain implants. Additionally, improved adhesion could be extremely relevant in devices targeting neural cell sensing/modulation of physiological activity.
Collapse
Affiliation(s)
- M Durso
- Consiglio Nazionale delle Ricerche, Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF), via Piero Gobetti 101, 40129 Bologna, Italy.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Jovanovic Z, Bajuk-Bogdanović D, Jovanović S, Mravik Ž, Kovač J, Holclajtner-Antunović I, Vujković M. The role of surface chemistry in the charge storage properties of graphene oxide. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.11.178] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
16
|
Mangalath S, Abraham S, Joseph J. pH-Responsive Fluorescence Enhancement in Graphene Oxide-Naphthalimide Nanoconjugates: A Fluorescence Turn-On Sensor for Acetylcholine. Chemistry 2017. [PMID: 28621503 DOI: 10.1002/chem.201702198] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A pH-sensitive, fluorescence "turn-on" sensor based on a graphene oxide-naphthalimide (GO-NI) nanoconjugate for the detection of acetylcholine (ACh) by monitoring the enzymatic activity of acetylcholinesterase (AChE) in aqueous solution is reported. These nanoconjugates were synthesized by covalently anchoring picolyl-substituted NI derivatives on the GO/reduced GO surface through a 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide/N-hydroxysuccinimide coupling strategy, and the morphological and photophysical properties were studied in detail. Synergistic effects of π-π interactions between GO and the NI chromophore, and efficient photoinduced electron- and energy-transfer processes, were responsible for the strong quenching of fluorescence of these nanoconjugates, which were perturbed under acidic pH conditions, leading to significant enhancement of fluorescence emission. This nanoconjugate was successfully employed for the efficient sensing of pH changes caused by the enzymatic activity of AChE, thereby demonstrating its utility as a fluorescence turn-on sensor for ACh in the neurophysiological range.
Collapse
Affiliation(s)
- Sreejith Mangalath
- Photosciences and Photonics Section, Chemical Sciences, and Technology Division, CSIR-National Institute for, Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, Kerala, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus, Thiruvananthapuram, 695019, Kerala, India
| | - Silja Abraham
- Photosciences and Photonics Section, Chemical Sciences, and Technology Division, CSIR-National Institute for, Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, Kerala, India
| | - Joshy Joseph
- Photosciences and Photonics Section, Chemical Sciences, and Technology Division, CSIR-National Institute for, Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, Kerala, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus, Thiruvananthapuram, 695019, Kerala, India
| |
Collapse
|
17
|
Xu M, Zhang W, Yang Z, Yu F, Ma Y, Hu N, He D, Liang Q, Su Y, Zhang Y. One-pot liquid-phase exfoliation from graphite to graphene with carbon quantum dots. NANOSCALE 2015; 7:10527-10534. [PMID: 26015172 DOI: 10.1039/c5nr02198g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Carbon quantum dots (CQDs) are novel carbon nanomaterials and are attracting increasing interest due to their good characteristics such as hydrophilicity, chemical stability, quantum yield, small particle sizes, and low cytotoxicity. Herein, we used CQDs as stabilizers and exfoliation agents to exfoliate graphite to graphene in an aqueous medium for the first time. The functions of CQDs are to reduce the surface tension of water to match that of graphite and to make weak interactions (π-π conjugation, hydrophobic force, and the Coulomb attraction) with the graphite surface. Different characterization methods were used to evaluate the presence of layers (<5 layers) of graphene sheets with fewer defects and low oxidation. In the future, CQDs can also be good candidates to exfoliate other two-dimensional materials, such as WS2, BN, MoS2, and g-C3N4, to form two-dimensional heterostructures for a range of possible applications.
Collapse
Affiliation(s)
- Minghan Xu
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Georgakilas V, Perman JA, Tucek J, Zboril R. Broad Family of Carbon Nanoallotropes: Classification, Chemistry, and Applications of Fullerenes, Carbon Dots, Nanotubes, Graphene, Nanodiamonds, and Combined Superstructures. Chem Rev 2015; 115:4744-822. [DOI: 10.1021/cr500304f] [Citation(s) in RCA: 1191] [Impact Index Per Article: 132.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Jason A. Perman
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University in Olomouc, 17 listopadu
1192/12, 771 46 Olomouc, Czech Republic
| | - Jiri Tucek
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University in Olomouc, 17 listopadu
1192/12, 771 46 Olomouc, Czech Republic
| | - Radek Zboril
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University in Olomouc, 17 listopadu
1192/12, 771 46 Olomouc, Czech Republic
| |
Collapse
|
19
|
Ferrari AC, Bonaccorso F, Fal'ko V, Novoselov KS, Roche S, Bøggild P, Borini S, Koppens FHL, Palermo V, Pugno N, Garrido JA, Sordan R, Bianco A, Ballerini L, Prato M, Lidorikis E, Kivioja J, Marinelli C, Ryhänen T, Morpurgo A, Coleman JN, Nicolosi V, Colombo L, Fert A, Garcia-Hernandez M, Bachtold A, Schneider GF, Guinea F, Dekker C, Barbone M, Sun Z, Galiotis C, Grigorenko AN, Konstantatos G, Kis A, Katsnelson M, Vandersypen L, Loiseau A, Morandi V, Neumaier D, Treossi E, Pellegrini V, Polini M, Tredicucci A, Williams GM, Hong BH, Ahn JH, Kim JM, Zirath H, van Wees BJ, van der Zant H, Occhipinti L, Di Matteo A, Kinloch IA, Seyller T, Quesnel E, Feng X, Teo K, Rupesinghe N, Hakonen P, Neil SRT, Tannock Q, Löfwander T, Kinaret J. Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems. NANOSCALE 2015; 7:4598-810. [PMID: 25707682 DOI: 10.1039/c4nr01600a] [Citation(s) in RCA: 991] [Impact Index Per Article: 110.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We present the science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems, targeting an evolution in technology, that might lead to impacts and benefits reaching into most areas of society. This roadmap was developed within the framework of the European Graphene Flagship and outlines the main targets and research areas as best understood at the start of this ambitious project. We provide an overview of the key aspects of graphene and related materials (GRMs), ranging from fundamental research challenges to a variety of applications in a large number of sectors, highlighting the steps necessary to take GRMs from a state of raw potential to a point where they might revolutionize multiple industries. We also define an extensive list of acronyms in an effort to standardize the nomenclature in this emerging field.
Collapse
Affiliation(s)
- Andrea C Ferrari
- Cambridge Graphene Centre, University of Cambridge, Cambridge, CB3 0FA, UK.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Perrozzi F, Prezioso S, Ottaviano L. Graphene oxide: from fundamentals to applications. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2015; 27:013002. [PMID: 25419724 DOI: 10.1088/0953-8984/27/1/013002] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this review, we discuss the fundamental characterization of graphene oxide (GO) and its future application perspectives. Morphology is discussed through optical microscopy, fluorescence microscopy, scanning electron microscopy, and atomic force microscopy studies. Chemical, structural, and vibrational properties are discussed through x-ray photoemission spectroscopy and Raman spectroscopy studies. Two easy characterization strategies, based on the correlation between x-ray photoemission spectroscopy and contact angle/optical contrast measurements are reported. Sensing and nano-biotechnology applications are discussed with focus on practical gas sensing and optical sensing, on the one hand, and on the toxicity issue of GO, on the other hand. Synthesis and post-synthesis treatments are also discussed, these latter with emphasis on lithography.
Collapse
Affiliation(s)
- F Perrozzi
- Dipartimento di Scienze Fisiche e Chimiche, Universitá dell'Aquila, Via Vetoio, 67100 L'Aquila, Italy
| | | | | |
Collapse
|
21
|
Sagnella A, Zambianchi M, Durso M, Posati T, Del Rio A, Donnadio A, Mazzanti A, Pistone A, Ruani G, Zamboni R, Benfenati V, Melucci M. APTES mediated modular modification of regenerated silk fibroin in a water solution. RSC Adv 2015. [DOI: 10.1039/c5ra10016j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chemical modification of regenerated silk fibroin was achieved by exploiting (3-aminopropyl)triethoxysilane acting simultaneously as solvent, carrier in water, grafter of an hydrophobic fluorescent molecule and reinforcing agent.
Collapse
Affiliation(s)
| | - Massimo Zambianchi
- Consiglio Nazionale delle Ricerche
- Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF)
- 40129 Bologna
- Italy
| | - Margherita Durso
- Consiglio Nazionale delle Ricerche
- Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF)
- 40129 Bologna
- Italy
| | - Tamara Posati
- Consiglio Nazionale delle Ricerche
- Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF)
- 40129 Bologna
- Italy
| | - Alberto Del Rio
- Consiglio Nazionale delle Ricerche
- Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF)
- 40129 Bologna
- Italy
| | - Anna Donnadio
- Dipartimento di Chimica
- University of Perugia
- 06123 Perugia
- Italy
| | - Andrea Mazzanti
- Dipartimento di Chimica Industriale “Toso Montanari”
- University of Bologna
- I-40136 – Bologna
- Italy
| | - Assunta Pistone
- Consiglio Nazionale delle Ricerche
- Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN)
- 40129 Bologna
- Italy
| | - Giampiero Ruani
- Consiglio Nazionale delle Ricerche
- Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN)
- 40129 Bologna
- Italy
| | - Roberto Zamboni
- Consiglio Nazionale delle Ricerche
- Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF)
- 40129 Bologna
- Italy
| | - Valentina Benfenati
- Consiglio Nazionale delle Ricerche
- Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF)
- 40129 Bologna
- Italy
| | - Manuela Melucci
- Consiglio Nazionale delle Ricerche
- Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF)
- 40129 Bologna
- Italy
| |
Collapse
|
22
|
Lipińska ME, Novais JP, Rebelo SL, Bachiller-Baeza B, Rodríguez-Ramos I, Guerrero-Ruiz A, Freire C. Microwave-assisted silylation of graphite oxide and iron(III) porphyrin intercalation. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.07.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
23
|
Zhou S, Ning M, Zhang Y, He Q, Wang X, Zhu D, Guo S, Hong N, Hu Y. Significant Removal of Harmful Compounds in Mainstream Cigarette Smoke Using Carbon Nanotubes Mixture Prepared by Catalytic Pyrolysis. ADSORPT SCI TECHNOL 2014. [DOI: 10.1260/0263-6174.32.6.453] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Shun Zhou
- Research and Development Centre, China Tobacco Anhui Industrial Co., Ltd., 9 Tianda Road, Hefei, Anhui 230088, P.R. China
- CTAH-USTC Joint Research Laboratory for Tobacco Chemistry, 9 Tianda Road, Hefei, Anhui 230088, P.R. China
| | - Min Ning
- Research and Development Centre, China Tobacco Anhui Industrial Co., Ltd., 9 Tianda Road, Hefei, Anhui 230088, P.R. China
| | - Yaping Zhang
- Research and Development Centre, China Tobacco Anhui Industrial Co., Ltd., 9 Tianda Road, Hefei, Anhui 230088, P.R. China
| | - Qing He
- Research and Development Centre, China Tobacco Anhui Industrial Co., Ltd., 9 Tianda Road, Hefei, Anhui 230088, P.R. China
| | - Xiaofeng Wang
- Research and Development Centre, China Tobacco Anhui Industrial Co., Ltd., 9 Tianda Road, Hefei, Anhui 230088, P.R. China
| | - Dongliang Zhu
- CTAH-USTC Joint Research Laboratory for Tobacco Chemistry, 9 Tianda Road, Hefei, Anhui 230088, P.R. China
| | - Song Guo
- Department of Safety Science, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Ningning Hong
- State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzai Road, Hefei, Anhui 230026, P.R. China
| | - Yuan Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzai Road, Hefei, Anhui 230026, P.R. China
| |
Collapse
|
24
|
Lee KH, Oh J, Son JG, Kim H, Lee SS. Nitrogen-doped graphene nanosheets from bulk graphite using microwave irradiation. ACS APPLIED MATERIALS & INTERFACES 2014; 6:6361-6368. [PMID: 24597537 DOI: 10.1021/am405735c] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Using simple microwave irradiation under the presence of sodium amide as a nitrogen source, preparation of nitrogen-doped graphene nanosheets has been successfully demonstrated. It is notable that exfoliation and nitrogen doping of graphite to nitrogen-doped graphene simultaneously occurred during the microwave irradiation within a minute, and nitrogen content of the doped graphene could reach up to 8.1%. It was also found that the binding configuration of nitrogen atom on graphitic layer consisted of various nitrogen-containing moieties such as pyridine-N, pyrrolic-N, and quaternary-N, and their composition was changed as a function of irradiation power. Although formation of undoped reduced graphene oxide by microwave irradiation resulted in slight increase of electrical conductivity because of the reductive recovery of oxidized graphite to graphene, nitrogen doping involved during irradiation induced much more notable increase of electrical conductivity more than 300 S cm(-1). Furthermore, nitrogen-doped graphene showed highly enhanced capacitive performance than that of undoped reduced graphene oxide, the specific capacitance of 200 F/g (current density of 0.5 A/g), which ascribes the pseudocapacitive effect from the incorporation of nitrogen atom on graphitic layer.
Collapse
Affiliation(s)
- Kwang Hoon Lee
- Photo-Electronic Hybrids Research Center, Korea Institute of Science and Technology , Seoul 136-791, Korea
| | | | | | | | | |
Collapse
|
25
|
Xia ZY, Giambastiani G, Christodoulou C, Nardi MV, Koch N, Treossi E, Bellani V, Pezzini S, Corticelli F, Morandi V, Zanelli A, Palermo V. Synergic Exfoliation of Graphene with Organic Molecules and Inorganic Ions for the Electrochemical Production of Flexible Electrodes. Chempluschem 2014; 79:439-446. [DOI: 10.1002/cplu.201300375] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Indexed: 11/08/2022]
|
26
|
Posati T, Melucci M, Benfenati V, Durso M, Nocchetti M, Cavallini S, Toffanin S, Sagnella A, Pistone A, Muccini M, Ruani G, Zamboni R. Selective MW-assisted surface chemical tailoring of hydrotalcites for fluorescent and biocompatible nanocomposites. RSC Adv 2014. [DOI: 10.1039/c3ra46669h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
27
|
Ciesielski A, Samorì P. Grapheneviasonication assisted liquid-phase exfoliation. Chem Soc Rev 2014; 43:381-98. [DOI: 10.1039/c3cs60217f] [Citation(s) in RCA: 839] [Impact Index Per Article: 83.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
28
|
Jurow M, Manichev V, Pabon C, Hageman B, Matolina Y, Drain CM. Self-organization of Zr(IV) porphyrinoids on graphene oxide surfaces by axial metal coordination. Inorg Chem 2013; 52:10576-82. [PMID: 24007316 DOI: 10.1021/ic401563f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The protruding oxophilic central metal ion of Zr(IV) porphyrinoids facilitates axial coordination to the oxygen bearing functional groups on graphene oxide (GO) surfaces to result in new supramolecular photonic materials with high dye loading especially on edges and large defects. The reaction proceeds at room temperature with GO dispersed in tetrahydrofuran and GO films on glass. Since the Zr(IV) serves as a conduit, the photophysical properties of the dye sensitized GO derive from both the axially bound chromophores and the GO substrate. Self-organization of metalloporphyrinoids on GO mediated by axial coordination of group (IV) metal ions allows for direct sensitization of graphene and graphenic materials without requiring covalent chemistries with poorly conducting linkers.
Collapse
Affiliation(s)
- Matthew Jurow
- Department of Chemistry and Biochemistry, Hunter College of the City University of New York , 695 Park Avenue, New York, New York 10021, United States
| | | | | | | | | | | |
Collapse
|
29
|
Palermo V. Not a molecule, not a polymer, not a substrate… the many faces of graphene as a chemical platform. Chem Commun (Camb) 2013; 49:2848-57. [DOI: 10.1039/c3cc37474b] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
30
|
Li Y, Qi L, Ma H. Preparation of porous polymer monolithic column using functionalized graphene oxide as a functional crosslinker for high performance liquid chromatography separation of small molecules. Analyst 2013; 138:5470-8. [DOI: 10.1039/c3an01122d] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
31
|
Fabbri F, Rossi F, Melucci M, Manet I, Attolini G, Favaretto L, Zambianchi M, Salviati G. Optical properties of hybrid T3Pyr/SiO2/3C-SiC nanowires. NANOSCALE RESEARCH LETTERS 2012; 7:680. [PMID: 23244177 PMCID: PMC3534015 DOI: 10.1186/1556-276x-7-680] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 12/04/2012] [Indexed: 06/01/2023]
Abstract
A new class of nanostructured hybrid materials is developed by direct grafting of a model thiophene-based organic dye on the surface of 3C-SiC/SiO2 core/shell nanowires. TEM-EDX analysis reveals that the carbon distribution is more spread than it would be, considering only the SiC core size, suggesting a main contribution from C of the oligothiophene framework. Further, the sulfur signal found along the treated wires is not detected in the as-grown samples. In addition, the fluorescent spectra are similar for the functionalized nanostructures and T3Pyr in solution, confirming homogeneous molecule grafting on the nanowire surface. Chemical and luminescence characterizations confirm a homogeneous functionalization of the nanowires. In particular, the fluorophore retains its optical properties after functionalization.
Collapse
Affiliation(s)
- Filippo Fabbri
- IMEM-CNR Institute, Parco Area delle Scienze 37/A, Parma, 43124, Italy
| | - Francesca Rossi
- IMEM-CNR Institute, Parco Area delle Scienze 37/A, Parma, 43124, Italy
| | - Manuela Melucci
- ISOF-CNR Institute, via P. Gobetti, 101, Bologna, 40129, Italy
| | - Ilse Manet
- ISOF-CNR Institute, via P. Gobetti, 101, Bologna, 40129, Italy
| | - Giovanni Attolini
- IMEM-CNR Institute, Parco Area delle Scienze 37/A, Parma, 43124, Italy
| | - Laura Favaretto
- ISOF-CNR Institute, via P. Gobetti, 101, Bologna, 40129, Italy
| | | | | |
Collapse
|
32
|
Vila M, Portolés MT, Marques PAAP, Feito MJ, Matesanz MC, Ramírez-Santillán C, Gonçalves G, Cruz SMA, Nieto A, Vallet-Regi M. Cell uptake survey of pegylated nanographene oxide. NANOTECHNOLOGY 2012; 23:465103. [PMID: 23093209 DOI: 10.1088/0957-4484/23/46/465103] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Graphene and more specifically, nanographene oxide (GO) has been proposed as a highly efficient antitumoral therapy agent. Nevertheless, its cell uptake kinetics, its influence in different types of cells and the possibility of controlling cellular internalization timing, is still a field that remains unexplored. Herein, different cell types have been cultured in vitro for several incubation periods in the presence of 0.075 mg ml(-1) pegylated GO solutions. GO uptake kinetics revealed differences in the agent's uptake amount and speed as a function of the type of cell involved. Osteoblast-like cells GO uptake is higher and faster without resulting in greater cell membrane damage. Moreover, the dependence on the commonly used PEG nature (number of branches) also influences the viability and cell uptake speed. These facts play an important role in the future definition of timing parameters and selective cell uptake control in order to achieve an effective therapy.
Collapse
Affiliation(s)
- M Vila
- Inorganic and Bioinorganic Chemistry Department, Universidad Complutense de Madrid, 28040, Spain.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Georgakilas V, Otyepka M, Bourlinos AB, Chandra V, Kim N, Kemp KC, Hobza P, Zboril R, Kim KS. Functionalization of graphene: covalent and non-covalent approaches, derivatives and applications. Chem Rev 2012; 112:6156-214. [PMID: 23009634 DOI: 10.1021/cr3000412] [Citation(s) in RCA: 1826] [Impact Index Per Article: 152.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
34
|
Zhao F, Liu J, Huang X, Zou X, Lu G, Sun P, Wu S, Ai W, Yi M, Qi X, Xie L, Wang J, Zhang H, Huang W. Chemoselective photodeoxidization of graphene oxide using sterically hindered amines as catalyst: synthesis and applications. ACS NANO 2012; 6:3027-3033. [PMID: 22420637 DOI: 10.1021/nn2047185] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report a green and efficient method for chemoselective deoxidization of graphene oxide via the ultraviolet irradiation catalyzed with 2,2,6,6-tetramethyl-4-piperidinol. While the sp(2)-hybridized oxygen functional groups are removed after the reduction, the epoxy and hydroxyl groups are retained in the chemoselectively reduced graphene oxide (CrGO). The obtained CrGO nanosheets exhibit the high solubility and excellent electronic stability, which allows for the fabrication of thin film devices through a solution processing. As a proof of concept, a CrGO-based write-once-read-many-times memory device with the desirable stability and long-time operation is fabricated.
Collapse
Affiliation(s)
- Fei Zhao
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210046, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Melucci M, Durso M, Zambianchi M, Treossi E, Xia ZY, Manet I, Giambastiani G, Ortolani L, Morandi V, De Angelis F, Palermo V. Graphene–organic hybrids as processable, tunable platforms for pH-dependent photoemission, obtained by a new modular approach. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm33349j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
36
|
Tachikawa T, Cui SC, Fujitsuka M, Majima T. Interfacial electron transfer dynamics in dye-modified graphene oxide nanosheets studied by single-molecule fluorescence spectroscopy. Phys Chem Chem Phys 2012; 14:4244-9. [DOI: 10.1039/c2cp23317g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
37
|
Bhowmik K, Pramanik S, Medda SK, De G. Covalently functionalized reduced graphene oxide by organically modified silica: a facile synthesis of electrically conducting black coatings on glass. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm35429b] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
38
|
Mativetsky JM, Liscio A, Treossi E, Orgiu E, Zanelli A, Samorì P, Palermo V. Graphene Transistors via in Situ Voltage-Induced Reduction of Graphene-Oxide under Ambient Conditions. J Am Chem Soc 2011; 133:14320-6. [DOI: 10.1021/ja202371h] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
39
|
Huang X, Yin Z, Wu S, Qi X, He Q, Zhang Q, Yan Q, Boey F, Zhang H. Graphene-based materials: synthesis, characterization, properties, and applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:1876-902. [PMID: 21630440 DOI: 10.1002/smll.201002009] [Citation(s) in RCA: 1147] [Impact Index Per Article: 88.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Indexed: 05/21/2023]
Abstract
Graphene, a two-dimensional, single-layer sheet of sp(2) hybridized carbon atoms, has attracted tremendous attention and research interest, owing to its exceptional physical properties, such as high electronic conductivity, good thermal stability, and excellent mechanical strength. Other forms of graphene-related materials, including graphene oxide, reduced graphene oxide, and exfoliated graphite, have been reliably produced in large scale. The promising properties together with the ease of processibility and functionalization make graphene-based materials ideal candidates for incorporation into a variety of functional materials. Importantly, graphene and its derivatives have been explored in a wide range of applications, such as electronic and photonic devices, clean energy, and sensors. In this review, after a general introduction to graphene and its derivatives, the synthesis, characterization, properties, and applications of graphene-based materials are discussed.
Collapse
Affiliation(s)
- Xiao Huang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Zhang X, Hou L, Cnossen A, Coleman AC, Ivashenko O, Rudolf P, van Wees BJ, Browne WR, Feringa BL. One-Pot Functionalization of Graphene with Porphyrin through Cycloaddition Reactions. Chemistry 2011; 17:8957-64. [DOI: 10.1002/chem.201100980] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Indexed: 11/08/2022]
|
41
|
Lin Y, Baggett DW, Kim JW, Siochi EJ, Connell JW. Instantaneous formation of metal and metal oxide nanoparticles on carbon nanotubes and graphene via solvent-free microwave heating. ACS APPLIED MATERIALS & INTERFACES 2011; 3:1652-1664. [PMID: 21517032 DOI: 10.1021/am200209e] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Microwave irradiation was shown to be an effective energy source for the rapid decomposition of organic metal salts (such as silver acetate) in a solid mixture with various carbon and noncarbon substrates under completely solvent-free conditions. The rapid and local Joule heating of microwave absorbing substrates (i.e., carbon-based) resulted in the instantaneous formation of metal and metal oxide nanoparticles on the substrate surfaces within seconds of microwave exposure. Other less absorbing substrates (such as hexagonal boron nitride) required longer exposure times for the salt decomposition to occur. Details of the effects of microwave reaction time, temperature, power, and other experimental parameters were investigated and discussed. The solvent-free microwave method was shown to be widely applicable to various organic metal salts with different substrates including single- and multiwalled carbon nanotubes, graphene, expanded graphite, hexagonal boron nitride and silica-alumina particles, forming substrate-supported metal (e.g., Ag, Au, Co, Ni, Pd, Pt) or metal oxide (e.g., Fe₃O₄, MnO, TiO₂) nanoparticles in high yields within short duration of microwave irradiation. The method was also successfully applied to large structural substrates such as nanotube yarns, further suggesting its application potential and versatility. To demonstrate one potential application, we successfully used both carbon nanotube powder and yarn samples decorated with Ag nanoparticles prepared via the above method to improve data acquisition in surface enhanced Raman spectroscopy.
Collapse
Affiliation(s)
- Yi Lin
- National Institute of Aerospace, 100 Exploration Way, Hampton, Virginia 23666-6147, USA.
| | | | | | | | | |
Collapse
|
42
|
Melucci M, Zambianchi M, Favaretto L, Palermo V, Treossi E, Montalti M, Bonacchi S, Cavallini M. Multicolor, large-area fluorescence sensing through oligothiophene-self-assembled monolayers. Chem Commun (Camb) 2011; 47:1689-91. [DOI: 10.1039/c0cc04478d] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|