1
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Kaur A, Morton JA, Tyurnina AV, Priyadarshi A, Ghorbani M, Mi J, Porfyrakis K, Eskin DG, Tzanakis I. Dual frequency ultrasonic liquid phase exfoliation method for the production of few layer graphene in green solvents. ULTRASONICS SONOCHEMISTRY 2024; 108:106954. [PMID: 38879962 PMCID: PMC11211887 DOI: 10.1016/j.ultsonch.2024.106954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/08/2024] [Accepted: 06/12/2024] [Indexed: 06/18/2024]
Abstract
In this work, we implement a dual frequency (24 kHz and 1174 kHz) ultrasonic assisted liquid phase exfoliation (ULPE) technique in deionized water (DIW) and other eco-friendly solvents, to produce a variety of high-quality few-layer graphene (FLG) solutions under controlled ultrasonication conditions. The resulting FLG dispersions of variable sizes (∼0.2-1.5 μm2) confirmed by characterisation techniques comprising UV-Vis spectroscopy, Raman spectroscopy and high-resolution transmission electron microscopy (HR-TEM). For the first time we demonstrate that high yield of FLG flakes with minimal defects, stable for 6 + months in a solution (stability ∼ 70 %), can be obtained in less than 1-hour of treatment in either water/ethanol (DIW:EtOH) or water/isopropyl alcohol (DIW:IPA) eco-friendly mixtures. We also scrutinized the underlying mechanisms of cavitation using high-speed imaging synchronized with acoustic pressure measurements. The addition of ethanol or IPA to deionized water is proposed to play a central role in exfoliation as it regulates the extend of the cavitation zone, the intensity of the ultrasonic field and, thus, the cavitation effectiveness. Our study revealed that lateral sizes of the obtained FLG depend on the choice of exfoliating media and the diameter of a sonotrode used. This variability offers flexibility in producing FLG of different sizes, applicable in a wide spectrum of size-specific applications.
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Affiliation(s)
- Amanpreet Kaur
- Faculty of Technology, Design and Environment, Oxford Brookes University, Headington, Oxford, OX3 0BP Wheatley, Oxford, OX33 1HX, UK.
| | - Justin A Morton
- Faculty of Technology, Design and Environment, Oxford Brookes University, Headington, Oxford, OX3 0BP Wheatley, Oxford, OX33 1HX, UK; Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK
| | - Anastasia V Tyurnina
- Brunel Centre for Advanced Solidification Technology, Brunel University London, Kingston Lane, London, UB8 3PH, UK
| | - Abhinav Priyadarshi
- Faculty of Technology, Design and Environment, Oxford Brookes University, Headington, Oxford, OX3 0BP Wheatley, Oxford, OX33 1HX, UK
| | - Morteza Ghorbani
- Faculty of Engineering and Natural Science, Sabanci University, 34956 Tuzla, Istanbul, Turkey
| | - Jiawei Mi
- Department of Engineering, University of Hull, Cottingham Rd, Hull, HU6 7RX, UK
| | - Kyriakos Porfyrakis
- Faculty of Engineering and Science, University of Greenwich, Central Avenue, Chatham Maritime, Kent, ME4 4TB, UK
| | - Dmitry G Eskin
- Brunel Centre for Advanced Solidification Technology, Brunel University London, Kingston Lane, London, UB8 3PH, UK
| | - Iakovos Tzanakis
- Faculty of Technology, Design and Environment, Oxford Brookes University, Headington, Oxford, OX3 0BP Wheatley, Oxford, OX33 1HX, UK; Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, UK.
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2
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Sengupta J, Hussain CM. Point-of-care devices engaging green graphene: an eco-conscious and sustainable paradigm. NANOSCALE 2024; 16:6900-6914. [PMID: 38511341 DOI: 10.1039/d3nr06367d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
The healthcare landscape has experienced a profound and irreversible transformation, primarily driven by the emergence of nanomaterial-assisted point-of-care (POC) devices. The inclusion of nanomaterials in POC devices has revolutionized healthcare by enabling rapid, on-site diagnostics with minimal infrastructure requirements. Among the materials poised to lead this technological revolution, green graphene emerges as a compelling contender. It possesses a unique combination of exceptional material properties and environmentally conscious attributes. These attributes include its substantial surface area, unparalleled electrical conductivity, and inherent biocompatibility. This article embarks on an exploration of POC devices incorporating green graphene. It meticulously dissects the intricacies of their design, performance characteristics, and diverse applications. Throughout the exposition, the transformative impact of green graphene on the advancement of POC diagnostics takes centre stage. It underscores the material's potential to drive sustainable and effective healthcare solutions, marking a significant milestone in the evolution of healthcare technology.
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Affiliation(s)
- Joydip Sengupta
- Department of Electronic Science, Jogesh Chandra Chaudhuri College, Kolkata-700033, India.
| | - Chaudhery Mustansar Hussain
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, 07102, New Jersey, USA.
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3
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Jain P, Rajput RS, Kumar S, Sharma A, Jain A, Bora BJ, Sharma P, Kumar R, Shahid M, Rajhi AA, Alsubih M, Shah MA, Bhowmik A. Recent Advances in Graphene-Enabled Materials for Photovoltaic Applications: A Comprehensive Review. ACS OMEGA 2024; 9:12403-12425. [PMID: 38524428 PMCID: PMC10955600 DOI: 10.1021/acsomega.3c07994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/14/2024] [Accepted: 02/23/2024] [Indexed: 03/26/2024]
Abstract
Graphene's two-dimensional structural arrangement has sparked a revolutionary transformation in the domain of conductive transparent devices, presenting a unique opportunity in the renewable energy sector. This comprehensive Review critically evaluates the most recent advances in graphene production and its employment in solar cells, focusing on dye-sensitized, organic, and perovskite devices for bulk heterojunction (BHJ) designs. This comprehensive investigation discovered the following captivating results: graphene integration resulted in a notable 20.3% improvement in energy conversion rates in graphene-perovskite photovoltaic cells. In comparison, BHJ cells saw a laudable 10% boost. Notably, graphene's 2D internal architecture emerges as a protector for photovoltaic devices, guaranteeing long-term stability against various environmental challenges. It acts as a transportation facilitator and charge extractor to the electrodes in photovoltaic cells. Additionally, this Review investigates current research highlighting the role of graphene derivatives and their products in solar PV systems, illuminating the way forward. The study elaborates on the complexities, challenges, and promising prospects underlying the use of graphene, revealing its reflective implications for the future of solar photovoltaic applications.
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Affiliation(s)
- Pragyan Jain
- Deptartment
of Mechanical Engineering, University Institute
of Technology, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal, Madhya Pradesh 462033, India
| | - R. S. Rajput
- Department
of Mechanical Engineering, Rajiv Gandhi
Proudyogiki Vishwavidyalaya, Bhopal, Madhya Pradesh 462033, India
| | - Sunil Kumar
- Department
of Mechanical Engineering, Rajiv Gandhi
Proudyogiki Vishwavidyalaya, Bhopal, Madhya Pradesh 462033, India
| | - Arti Sharma
- Department
of Physics and Electronics, Rani Durgavati
Vishwavidyalaya, Jabalpur, Madhya Pradesh 482001, India
| | - Akshay Jain
- Energy
Institute Bengaluru, A Centre of Rajiv Gandhi
Institute of Petroleum Technology, Bengaluru, Karnataka 562157, India
| | - Bhaskor Jyoti Bora
- Energy
Institute Bengaluru, A Centre of Rajiv Gandhi
Institute of Petroleum Technology, Bengaluru, Karnataka 562157, India
| | - Prabhakar Sharma
- Department
of Mechanical Engineering, Delhi Skill and
Entrepreneurship University, Delhi 110089, India
| | - Raman Kumar
- Department
of Mechanical and Production Engineering, Guru Nanak Dev Engineering College, Ludhiana, Punjab 141006, India
| | - Mohammad Shahid
- Department
of Electrical Engineering, Galgotias College
of Engineering and Technology, 1, Knowledge Park, Phase II, Greater Noida, Uttar Pradesh 201306, India
| | - Ali A. Rajhi
- Department
of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia
| | - Majed Alsubih
- Civil
Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia
| | - Mohd Asif Shah
- Department
of Economics, Kebri Dehar University, Kebri Dehar 250, Ethiopia
- Centre
of Research Impact and Outcome, Chitkara
University Institute of Engineering and Technology, Chitkara University, Rajpura, Punjab 140401, India
- Division
of Research and Development, Lovely Professional
University, Phagwara, Punjab 144001, India
| | - Abhijit Bhowmik
- Mechanical
Engineering Department, Dream Institute
of Technology, Kolkata 700104, India
- Chitkara
Centre for Research and Development, Chitkara
University, Himachal Pradesh 174103, India
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4
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Wu Y, Wu Y, Sun Y, Zhao W, Wang L. 2D Nanomaterials Reinforced Organic Coatings for Marine Corrosion Protection: State of the Art, Challenges, and Future Prospectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2312460. [PMID: 38500264 DOI: 10.1002/adma.202312460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/04/2024] [Indexed: 03/20/2024]
Abstract
2D nanomaterials, with extraordinary physical and chemical characteristics, have long been regarded as promising nanofillers in organic coatings for marine corrosion protection. The past decade has witnessed the high-speed progress of 2D nanomaterial-reinforced organic composite coatings, and plenty of breakthroughs have been achieved as yet. This review covers an in-depth and all-around outline of the up-to-date advances in 2D nanomaterial-modified organic coatings employed for the marine corrosion protection realm. Starting from a brief introduction to 2D nanomaterials, the preparation strategies and properties are illustrated. Subsequently, diverse protection models based on composite coatings for marine corrosion protection are also introduced, including physical barrier, self-healing, as well as cathodic protection, respectively. Furthermore, computational simulations and critical factors on the corrosion protection properties of composite coatings are clarified in detail. Finally, the remaining challenges and prospects for marine corrosion protection based on 2D nanomaterials reinforced organic coatings are highlighted.
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Affiliation(s)
- Yangmin Wu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Yinghao Wu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Yingxiang Sun
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Wenjie Zhao
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Liping Wang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
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5
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Wan S, Bhati AP, Wade AD, Coveney PV. Ensemble-Based Approaches Ensure Reliability and Reproducibility. J Chem Inf Model 2023; 63:6959-6963. [PMID: 37965695 PMCID: PMC10685440 DOI: 10.1021/acs.jcim.3c01654] [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: 10/13/2023] [Indexed: 11/16/2023]
Abstract
It is increasingly widely recognized that ensemble-based approaches are required to achieve reliability, accuracy, and precision in molecular dynamics calculations. The purpose of the present article is to address a frequently raised question: what is the optimal way to perform ensemble simulation to calculate quantities of interest?
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Affiliation(s)
- Shunzhou Wan
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, U. K
| | - Agastya P. Bhati
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, U. K
| | - Alexander D. Wade
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, U. K
| | - Peter V. Coveney
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, U. K
- Advanced
Research Computing Centre, University College
London, London WC1H 0AJ, U.K.
- Institute
for Informatics, Faculty of Science, University
of Amsterdam, 1098XH Amsterdam, The Netherlands
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6
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Wu W, Du M, Shi H, Zheng Q, Bai Z. Application of graphene aerogels in oil spill recovery: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159107. [PMID: 36181814 DOI: 10.1016/j.scitotenv.2022.159107] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/22/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
Oil spills have long been a serious threat to marine environment. Physical recovery is the safest and most efficient method in the emergency disposal of offshore oil spill. Graphene aerogel (GA) has a wide application prospect in offshore oil spill emergency recovery and disposal given its unique structural characteristics. In this article, the preparation methods of GA adsorbent are summarized. On this basis, in the background of the application of offshore oil spill recovery, the related properties and targeted modification schemes of GA, such as adsorption, mechanical, and magnetic properties, as well as photothermal conversion properties for disposal of oil spills with high viscosity, are discussed. The Joule heating/photothermal conversion scheme can improve the recovery efficiency of offshore high viscosity oil spills, and adding metal composite materials can increase the magnetic performance and surface roughness of GA and facilitate positioning and recovery after offshore oil spills disposal. The challenges and prospects of modification research are also highlighted, and guidance for further optimizing the performance of GA in offshore oil spill recovery is provided.
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Affiliation(s)
- Wanqing Wu
- Marine Engineering College, Dalian Maritime University, Dalian 116026, PR China; Engineering Technology Center for Ship Safety and Pollution Control, Liaoning Province, Dalian 116026, PR China.
| | - Min Du
- Marine Engineering College, Dalian Maritime University, Dalian 116026, PR China
| | - Haokun Shi
- Marine Engineering College, Dalian Maritime University, Dalian 116026, PR China
| | - Qinggong Zheng
- Marine Engineering College, Dalian Maritime University, Dalian 116026, PR China; Engineering Technology Center for Ship Safety and Pollution Control, Liaoning Province, Dalian 116026, PR China
| | - Zhaoao Bai
- Marine Engineering College, Dalian Maritime University, Dalian 116026, PR China
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7
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Vassaux M, Müller WA, Suter JL, Vijayaraghavan A, Coveney PV. Mechanically Stable Ultrathin Layered Graphene Nanocomposites Alleviate Residual Interfacial Stresses: Implications for Nanoelectromechanical Systems. ACS APPLIED NANO MATERIALS 2022; 5:17969-17976. [PMID: 36583124 PMCID: PMC9791614 DOI: 10.1021/acsanm.2c03955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Advanced nanoelectromechanical systems made from polymer dielectrics deposited onto 2D-nanomaterials such as graphene are increasingly popular as pressure and touch sensors, resonant sensors, and capacitive micromachined ultrasound transducers (CMUTs). However, durability and accuracy of layered nanocomposites depend on the mechanical stability of the interface between polymer and graphene layers. Here we used molecular dynamics computer simulations to investigate the interface between a sheet of graphene and a layer of parylene-C thermoplastic polymer during large numbers of high-frequency (MHz) cycles of bending relevant to the operating regime. We find that important interfacial sliding occurs almost immediately in usage conditions, resulting in more than 2% expansion of the membrane, a detrimental mechanism which requires repeated calibration to maintain CMUTs accuracy. This irreversible mechanism is caused by relaxation of residual internal stresses in the nanocomposite bilayer, leading to the emergence of self-equilibrated tension in the polymer and compression in the graphene. It arises as a result of deposition-polymerization processing conditions. Our findings demonstrate the need for particular care to be exercised in overcoming initial expansion. The selection of appropriate materials chemistry including low electrostatic interactions will also be key to their successful application as durable and reliable devices.
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Affiliation(s)
- Maxime Vassaux
- Université
de Rennes, CNRS, IPR (Institut de Physique de Rennes), UMR 6251, Rennes 35000, France
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - Werner A. Müller
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - James L. Suter
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - Aravind Vijayaraghavan
- Department
of Materials and National Graphene Institute, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Peter V. Coveney
- Centre
for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
- Advanced
Research Computing Centre, University College
London, London WC1H 0AJ, United Kingdom
- Informatics
Institute, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
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8
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Preparation and Application of Graphene–Based Materials for Heavy Metal Removal in Tobacco Industry: A Review. SEPARATIONS 2022. [DOI: 10.3390/separations9120401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Heavy metals are nondegradable in the natural environment and harmful to the ecological system and human beings, causing an increased environmental pollution problem. It is required to remove heavy metals from wastewater urgently. Up until now, various methods have been involved in the heavy metal removals, such as chemical precipitation, chemical reduction, electrochemical, membrane separation, ion exchange, biological, and adsorption methods. Among them, adsorption by graphene–based materials has attracted much more attentions for the removal of heavy metals from wastewater systems in recent years, arising due to their large specific surface area, high adsorption capacity, high removal efficiency, and good recyclability. Therefore, it is quite important to review the heavy metal removal with the graphene–based material. In this review, we have summarized the physicochemical property and preparation methods of graphene and their adsorption property to heavy metals. The influencing parameters for the removal of heavy metals by graphene–based materials have been discussed. In addition, the modification of graphene–based materials to enhance their adsorption capability for heavy metal removal is also reviewed. The heavy metal removal by modified graphene–based materials in the tobacco industry has been especially described in detail. Finally, the future trend for graphene–based materials in the field of heavy metal wastewater treatment is proposed. This knowledge will have great impacts on the field and facilitate the researchers to seek the new functionalization method for graphene–based materials with high adsorption capacity to heavy metals in the tobacco industry in the future.
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9
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Kaur A, Morton JA, Tyurnina AV, Priyadarshi A, Holland A, Mi J, Porfyrakis K, Eskin DG, Tzanakis I. Temperature as a key parameter for graphene sono-exfoliation in water. ULTRASONICS SONOCHEMISTRY 2022; 90:106187. [PMID: 36198250 PMCID: PMC9530948 DOI: 10.1016/j.ultsonch.2022.106187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/13/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Graphene dispersions in water are highly desirable for a range of applications such as biomedicines, separation membranes, coatings, inkjet printing and more. Recent novel research has been focussed on developing a green approach for scalable production of graphene. However, one important parameter, which is often neglected is the bulk temperature of the processing liquid. This paper follows our earlier work where optimal sono-exfoliation parameters of graphite in aqueous solutions were determined based on the measured acoustic pressure fields at various temperatures and input powers. Here, we take the next step forward and demonstrate using systematic characterisation techniques and acoustic pressure measurements that sonication-assisted liquid phase exfoliation (LPE) of graphite powder can indeed produce high quality few layer graphene flakes in pure water at a specific temperature, i.e. 40 °C, and at an optimised input generator power of 50%, within 2-h of processing. UV-vis analysis also revealed that the exfoliation, stability and uniformity of dispersions were improved with increasing temperature. We further confirmed the successful exfoliation of graphene sheets with minimal level of defects in the optimized sample with the help of Raman microscopy and transmission electron microscopy. This study demonstrated that understanding and controlling processing temperature is one of the key parameters for graphene exfoliation in water which offers a potential pathway for its large-scale production.
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Affiliation(s)
- Amanpreet Kaur
- School of Engineering, Computing and Mathematics, Oxford Brookes University, College Cl, Wheatley, Oxford OX33 1HX, UK
| | - Justin A Morton
- School of Engineering, Computing and Mathematics, Oxford Brookes University, College Cl, Wheatley, Oxford OX33 1HX, UK
| | - Anastasia V Tyurnina
- Brunel Centre for Advanced Solidification Technology, Brunel University London, Kingston Lane, UB8 3PH, UK
| | - Abhinav Priyadarshi
- School of Engineering, Computing and Mathematics, Oxford Brookes University, College Cl, Wheatley, Oxford OX33 1HX, UK
| | - Adam Holland
- Kyoto Cl, Moulton Park Industrial Estate, Moulton Park, Northampton NN3 6FL, UK
| | - Jiawei Mi
- Department of Engineering, University of Hull, Cottingham Rd, Hull HU6 7RX, UK
| | - Kyriakos Porfyrakis
- Faculty of Engineering and Science, University of Greenwich, Central Avenue, Chatham Maritime, Kent ME4 4TB, UK
| | - Dmitry G Eskin
- Brunel Centre for Advanced Solidification Technology, Brunel University London, Kingston Lane, UB8 3PH, UK
| | - Iakovos Tzanakis
- School of Engineering, Computing and Mathematics, Oxford Brookes University, College Cl, Wheatley, Oxford OX33 1HX, UK; Department of Materials, University of Oxford, Parks Rd, Oxford OX1 3PH, UK.
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10
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Shi H, Wang X, Li X, Hu X, Gan W, Xu C, Wang G. Thin-Copper-Layer-Induced Early Fracture in Graphene-Nanosheets (GNSs)-Reinforced Copper-Matrix-Laminated Composites. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7677. [PMID: 36363268 PMCID: PMC9655900 DOI: 10.3390/ma15217677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/25/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
The strength-ductility trade-off has been a long-standing challenge when designing and fabricating a novel metal matrix composite. In this study, graphene-nanosheets (GNSs)-reinforced copper (Cu)-matrix-laminated composites were fabricated through two methods, i.e., the alternating electrodeposition technique followed by spark plasma sintering (SPS) and direct electrodeposition followed by hot-press sintering. As a result, a Cu-GNS-Cu layered structure formed in the composites with various Cu layer thicknesses. Compared with the pure Cu, the yield strength of the GNS/Cu composites increased. However, the mechanical performance of the GNS/Cu composites was strongly Cu-layer-thickness-dependent, and the GNS/Cu composite possessed a brittle fracture mode when the Cu layer was thin (≤10 μm). The fracture mechanism of the GNS/Cu composites was thoroughly investigated and the results showed that the premature failure of the GNS/Cu composites with a thin Cu layer may be due to the lack of Cu matrix, which can relax the excessive stress intensity triggered by GNSs and delay the crack connection between neighboring GNS layers. This study highlights the soft Cu matrix in balancing the strength and ductility of the GNS/Cu-laminated composites and provides new technical and theoretical support for the preparation and optimization of other laminated metal matrix composites.
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Affiliation(s)
- Hailong Shi
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
- GEMS at MLZ, Helmholtz-Zentrum Hereon Lichtenbergstrsasse 1, D-85748 Garching, Germany
| | - Xiaojun Wang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Xuejian Li
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Xiaoshi Hu
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Weimin Gan
- GEMS at MLZ, Helmholtz-Zentrum Hereon Lichtenbergstrsasse 1, D-85748 Garching, Germany
| | - Chao Xu
- Center for Analysis and Measurement, Harbin Institute of Technology, Harbin 150001, China
| | - Guochao Wang
- 38th Research Institute, China Electronics Technology Group Corporation, Hefei 230000, China
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11
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Ji G, Tian J, Xing F, Feng Y. Optical Biosensor Based on Graphene and Its Derivatives for Detecting Biomolecules. Int J Mol Sci 2022; 23:ijms231810838. [PMID: 36142748 PMCID: PMC9500660 DOI: 10.3390/ijms231810838] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 12/24/2022] Open
Abstract
Graphene and its derivatives show great potential for biosensing due to their extraordinary optical, electrical and physical properties. In particular, graphene and its derivatives have excellent optical properties such as broadband and tunable absorption, fluorescence bursts, and strong polarization-related effects. Optical biosensors based on graphene and its derivatives make nondestructive detection of biomolecules possible. The focus of this paper is to review the preparation of graphene and its derivatives, as well as recent advances in optical biosensors based on graphene and its derivatives. The working principle of face plasmon resonance (SPR), surface-enhanced Raman spectroscopy (SERS), fluorescence resonance energy transfer (FRET) and colorimetric sensors are summarized, and the advantages and disadvantages of graphene and its derivatives applicable to various types of sensors are analyzed, and the methods of surface functionalization of graphene and its derivatives are introduced; these optical biosensors can be used for the detection of a range of biomolecules such as single cells, cellular secretions, proteins, nucleic acids, and antigen-antibodies; these new high-performance optical sensors are capable of detecting changes in surface structure and biomolecular interactions with the advantages of ultra-fast detection, high sensitivity, label-free, specific recognition, and the ability to respond in real-time. Problems in the current stage of application are discussed, as well as future prospects for graphene and its biosensors. Achieving the applicability, reusability and low cost of novel optical biosensors for a variety of complex environments and achieving scale-up production, which still faces serious challenges.
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Affiliation(s)
| | | | | | - Yu Feng
- Correspondence: (F.X.); (Y.F.)
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12
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Farhan A, Rashid EU, Waqas M, Ahmad H, Nawaz S, Munawar J, Rahdar A, Varjani S, Bilal M. Graphene-based nanocomposites and nanohybrids for the abatement of agro-industrial pollutants in aqueous environments. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 308:119557. [PMID: 35709916 DOI: 10.1016/j.envpol.2022.119557] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/28/2022] [Accepted: 05/28/2022] [Indexed: 06/15/2023]
Abstract
Incessant release of a large spectrum of agro-industrial pollutants into environmental matrices remains a serious concern due to their potential health risks to humans and aquatic animals. Existing remediation techniques are unable to remove these pollutants, necessitating the development of novel treatment approaches. Due to its unique structure, physicochemical properties, and broad application potential, graphene has attracted a lot of attention as a new type of two-dimensional nanostructure. Given its chemical stability, large surface area, electron mobility, superior thermal conductivity, and two-dimensional structure, tremendous research has been conducted on graphene and its derived composites for environmental remediation and pollution mitigation. Various methods for graphene functionalization have facilitated the development of different graphene derivatives such as graphene oxide (GO), functional reduced graphene oxide (frGO), and reduced graphene oxide (rGO) with novel attributes for multiple applications. This review provides a comprehensive read on the recent progress of multifunctional graphene-based nanocomposites and nanohybrids as a promising way of removing emerging contaminants from aqueous environments. First, a succinct overview of the fundamental structure, fabrication techniques, and features of graphene-based composites is presented. Following that, graphene and GO functionalization, i.e., covalent bonding, non-covalent, and elemental doping, are discussed. Finally, the environmental potentials of a plethora of graphene-based hybrid nanocomposites for the abatement of organic and inorganic contaminants are thoroughly covered.
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Affiliation(s)
- Ahmad Farhan
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Faisalabad, Pakistan
| | - Ehsan Ullah Rashid
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Faisalabad, Pakistan
| | - Muhammad Waqas
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Faisalabad, Pakistan
| | - Haroon Ahmad
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Faisalabad, Pakistan
| | - Shahid Nawaz
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Junaid Munawar
- College of Chemistry, Beijing University of Chemical Technology, 100013, China
| | - Abbas Rahdar
- Department of Physics, University of Zabol, P. O. Box. 98613-35856, Zabol, Iran
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, 382 010, Gujarat, India
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, China.
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Gürünlü B, Taşdelen-Yücedağ Ç, Bayramoğlu M. One Pot Synthesis of Graphene through Microwave Assisted Liquid Exfoliation of Graphite in Different Solvents. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27155027. [PMID: 35956975 PMCID: PMC9370801 DOI: 10.3390/molecules27155027] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/31/2022] [Accepted: 08/03/2022] [Indexed: 11/16/2022]
Abstract
This study presents an easy and quick method for the synthesis of graphene from graphite in a set of solvents, including n-Hexadecane (n-Hexa), dimethylsulfoxide (DMSO), sodium hydroxide (NaOH), 1-octanol (OCTA), perchloric acid (PA), N,N-Dimethylformamide (DMF), ethylene glycol (EG), and ethylene diamine (ED), via microwave (MW) energy. The properties of final products were determined by X-ray diffraction spectroscopy (XRD), Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible (UV-Vis) spectroscopy, and the four-point probe technique. The XRD spectra of most of the MW-assisted graphene products showed peaks at 2θ = 26.5° and 54°. Layer numbers extend from 2 and 25, and the leading comes about were gotten by having two-layered products, named as graphene synthesized in dimethylsulfoxide (G-DMSO), graphene synthesized in ethylene glycol (G-EG), and graphene synthesized in 1-octanol (G-OCTA). G-DMF has the highest electrical conductivity with 22 S/m. The electrical conductivity is higher when the dipole moment of the used solvent is between 2 and 4 Debye (D). The FTIR spectra of most of the MW-assisted graphene products are in line with commercial graphene (CG). The UV-Vis spectra of all MW-assisted graphene products showed a peak at 223 nm referring to characteristic sp2 C=C bonds and 273 nm relating to the n → π * transition of C-O bonds.
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Affiliation(s)
- Betül Gürünlü
- Bioengineering Department, Üsküdar University, Altunizade Mah. Üniversite Sok., Üsküdar, Istanbul 34662, Turkey
- Correspondence: ; Tel.: +90-544-354-9288
| | | | - Mahmut Bayramoğlu
- Chemical Engineering Department, Gebze Technical University, Gebze 41400, Turkey
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14
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Advanced wearable biosensors for the detection of body fluids and exhaled breath by graphene. Mikrochim Acta 2022; 189:236. [PMID: 35633385 PMCID: PMC9146825 DOI: 10.1007/s00604-022-05317-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 04/22/2022] [Indexed: 11/02/2022]
Abstract
Given the huge economic burden caused by chronic and acute diseases on human beings, it is an urgent requirement of a cost-effective diagnosis and monitoring process to treat and cure the disease in their preliminary stage to avoid severe complications. Wearable biosensors have been developed by using numerous materials for non-invasive, wireless, and consistent human health monitoring. Graphene, a 2D nanomaterial, has received considerable attention for the development of wearable biosensors due to its outstanding physical, chemical, and structural properties. Moreover, the extremely flexible, foldable, and biocompatible nature of graphene provide a wide scope for developing wearable biosensor devices. Therefore, graphene and its derivatives could be trending materials to fabricate wearable biosensor devices for remote human health management in the near future. Various biofluids and exhaled breath contain many relevant biomarkers which can be exploited by wearable biosensors non-invasively to identify diseases. In this article, we have discussed various methodologies and strategies for synthesizing and pattering graphene. Furthermore, general sensing mechanism of biosensors, and graphene-based biosensing devices for tear, sweat, interstitial fluid (ISF), saliva, and exhaled breath have also been explored and discussed thoroughly. Finally, current challenges and future prospective of graphene-based wearable biosensors have been evaluated with conclusion. Graphene is a promising 2D material for the development of wearable sensors. Various biofluids (sweat, tears, saliva and ISF) and exhaled breath contains many relevant biomarkers which facilitate in identify diseases. Biosensor is made up of biological recognition element such as enzyme, antibody, nucleic acid, hormone, organelle, or complete cell and physical (transducer, amplifier), provide fast response without causing organ harm.
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15
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Graphene-Based Functional Hybrid Membranes for Antimicrobial Applications: A Review. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12104834] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Graphene-based nanomaterials have shown wide applications in antimicrobial fields due to their accelerated rate of pathogen resistance and good antimicrobial properties. To apply graphene materials in the antimicrobial test, the graphene materials are usually fabricated as two-dimensional (2D) membranes. In addition, to improve the antimicrobial efficiency, graphene membranes are modified with various functional nanomaterials, such as nanoparticles, biomolecules, polymers, etc. In this review, we present recent advances in the fabrication, functional tailoring, and antimicrobial applications of graphene-based membranes. To implement this goal, we first introduce the synthesis of graphene materials and then the fabrication of 2D graphene-based membranes with potential techniques such as chemical vapor deposition, vacuum filtration, spin-coating, casting, and layer-by-layer self-assembly. Then, we present the functional tailoring of graphene membranes by adding metal and metal oxide nanoparticles, polymers, biopolymers, metal–organic frameworks, etc., with graphene. Finally, we focus on the antimicrobial mechanisms of graphene membranes, and demonstrate typical studies on the use of graphene membranes for antibacterial, antiviral, and antifungal applications. It is expected that this work will help readers to understand the antimicrobial mechanism of various graphene-based membranes and, further, to inspire the design and fabrication of functional graphene membranes/films for biomedical applications.
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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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17
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Lee J, Lee W, Kim GY, Choi YB, Park J, Jang S, Gu G, Choi SY, Cho GY, Lee GH, Lee HJ. Twisted van der Waals Josephson Junction Based on a High- Tc Superconductor. NANO LETTERS 2021; 21:10469-10477. [PMID: 34881903 DOI: 10.1021/acs.nanolett.1c03906] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Stacking two-dimensional van der Waals (vdW) materials rotated with respect to each other show versatility for studying exotic quantum phenomena. In particular, anisotropic layered materials have great potential for such twistronics applications, providing high tunability. Here, we report anisotropic superconducting order parameters in twisted Bi2Sr2CaCu2O8+x (Bi-2212) vdW junctions with an atomically clean vdW interface, achieved using the microcleave-and-stack technique. The vdW junctions with twist angles of 0° and 90° showed the maximum Josephson coupling, comparable to that of intrinsic Josephson junctions. As the twist angle approaches 45°, Josephson coupling is suppressed, and eventually disappears at 45°. The observed twist angle dependence of the Josephson coupling can be explained quantitatively by theoretical calculation with the d-wave superconducting order parameter of Bi-2212 and finite tunneling incoherence of the junction. Our results revealed the anisotropic nature of Bi-2212 and provided a novel fabrication technique for vdW-based twistronics platforms compatible with air-sensitive vdW materials.
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Affiliation(s)
- Jongyun Lee
- Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Wonjun Lee
- Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Gi-Yeop Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang 37673, Korea
- Materials Imaging & Analysis Center, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Yong-Bin Choi
- Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Jinho Park
- Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Seong Jang
- Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Genda Gu
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Si-Young Choi
- Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang 37673, Korea
- Materials Imaging & Analysis Center, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Gil Young Cho
- Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea
- Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS), Pohang 37673, Korea
- Asia Pacific Center for Theoretical Physics, Pohang 37673, Korea
| | - Gil-Ho Lee
- Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea
- Asia Pacific Center for Theoretical Physics, Pohang 37673, Korea
| | - Hu-Jong Lee
- Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea
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18
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Xiao D, Qi H, Teng Y, Pierre D, Kutoka PT, Liu D. Advances and Challenges of Fluorescent Nanomaterials for Synthesis and Biomedical Applications. NANOSCALE RESEARCH LETTERS 2021; 16:167. [PMID: 34837561 PMCID: PMC8626755 DOI: 10.1186/s11671-021-03613-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 09/28/2021] [Indexed: 05/18/2023]
Abstract
With the rapid development of nanotechnology, new types of fluorescent nanomaterials (FNMs) have been springing up in the past two decades. The nanometer scale endows FNMs with unique optical properties which play a critical role in their applications in bioimaging and fluorescence-dependent detections. However, since low selectivity as well as low photoluminescence efficiency of fluorescent nanomaterials hinders their applications in imaging and detection to some extent, scientists are still in search of synthesizing new FNMs with better properties. In this review, a variety of fluorescent nanoparticles are summarized including semiconductor quantum dots, carbon dots, carbon nanoparticles, carbon nanotubes, graphene-based nanomaterials, noble metal nanoparticles, silica nanoparticles, phosphors and organic frameworks. We highlight the recent advances of the latest developments in the synthesis of FNMs and their applications in the biomedical field in recent years. Furthermore, the main theories, methods, and limitations of the synthesis and applications of FNMs have been reviewed and discussed. In addition, challenges in synthesis and biomedical applications are systematically summarized as well. The future directions and perspectives of FNMs in clinical applications are also presented.
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Affiliation(s)
- Deli Xiao
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, 210009, China
- Key Laboratory of Biomedical Functional Materials, China Pharmaceutical University, Nanjing, 210009, China
| | - Haixiang Qi
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Yan Teng
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Dramou Pierre
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | | | - Dong Liu
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, School of Biological and Pharmaceutical Engineering, West Anhui University, West of Yunlu Bridge, Moon Island, Lu'an, 237012, Anhui, China.
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19
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Engineered Magnetic Carbon-Based Adsorbents for the Removal of Water Priority Pollutants: An Overview. ADSORPT SCI TECHNOL 2021. [DOI: 10.1155/2021/9917444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
This review covers the preparation, characterization, and application of magnetic adsorbents obtained from carbon-based sources and their application in the adsorption of both inorganic and organic pollutants from water. Different preparation routes to obtain magnetic adsorbents from activated carbon, biochar, hydrochar, graphene, carbon dots, carbon nanotubes, and carbon nanocages, including the magnetic phase incorporated on the solid surface, are described and discussed. The performance of these adsorbents is analyzed for the removal of fluoride, arsenic, heavy metals, dyes, pesticides, pharmaceuticals, and other emerging and relevant water pollutants. Properties of these adsorbents and the corresponding adsorption mechanisms have been included in this review. Overall, this type of magnetic adsorbents offers an alternative for facing the operational problems associated to adsorption process in water treatment. However, some gaps have been identified in the proper physicochemical characterization of these adsorbents, the development of green and low-cost preparation methods for their industrial production and commercialization, the regeneration and final disposal of spent adsorbents, and their application in the multicomponent adsorption of water pollutants.
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20
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Wei Y, Zhang P, Soomro RA, Zhu Q, Xu B. Advances in the Synthesis of 2D MXenes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2103148. [PMID: 34423479 DOI: 10.1002/adma.202103148] [Citation(s) in RCA: 183] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/06/2021] [Indexed: 05/21/2023]
Abstract
2D transition metal carbides, nitrides, and carbonitrides, also known as MXenes, are versatile materials due to their adjustable structure and rich surface chemistry. The physical and chemical diversity has recognized MXenes as a potential 2D material with a wide spectrum of application domains. Since the discovery of MXenes in 2011, a wide variety of synthetic routes has been proposed with advancement toward large-scale preparing methods for MXene nanosheets and derivative products. Herein, the critical synthesis aspects and the operating conditions that influence the physical and chemical characteristics of MXenes are discussed in detail. The emerging etching methods including HF etching methods, in situ HF-forming etching methods, electrochemical etching methods, alkali etching methods, and molten salt etching methods, as well as delamination strategies are discussed. Considering the future developments and practical applications, the large-scale synthesis routes and the antioxidation strategies of MXenes are also summarized. In summary, a generalized overview of MXenes synthesis protocols with an outlook for the current challenges and promising technologies for large-scale preparation and stable storage is provided.
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Affiliation(s)
- Yi Wei
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Peng Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Razium A Soomro
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Qizhen Zhu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Bin Xu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
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21
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Alzakia FI, Tan SC. Liquid-Exfoliated 2D Materials for Optoelectronic Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2003864. [PMID: 34105282 PMCID: PMC8188210 DOI: 10.1002/advs.202003864] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/19/2021] [Indexed: 05/14/2023]
Abstract
Two-dimensional (2D) materials have attracted tremendous research attention in recent days due to their extraordinary and unique properties upon exfoliation from the bulk form, which are useful for many applications such as electronics, optoelectronics, catalysis, etc. Liquid exfoliation method of 2D materials offers a facile and low-cost route to produce large quantities of mono- and few-layer 2D nanosheets in a commercially viable way. Optoelectronic devices such as photodetectors fabricated from percolating networks of liquid-exfoliated 2D materials offer advantages compared to conventional devices, including low cost, less complicated process, and higher flexibility, making them more suitable for the next generation wearable devices. This review summarizes the recent progress on metal-semiconductor-metal (MSM) photodetectors fabricated from percolating network of 2D nanosheets obtained from liquid exfoliation methods. In addition, hybrids and mixtures with other photosensitive materials, such as quantum dots, nanowires, nanorods, etc. are also discussed. First, the various methods of liquid exfoliation of 2D materials, size selection methods, and photodetection mechanisms that are responsible for light detection in networks of 2D nanosheets are briefly reviewed. At the end, some potential strategies to further improve the performance the devices are proposed.
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Affiliation(s)
- Fuad Indra Alzakia
- Department of Materials Science and EngineeringNational University of Singapore9 Engineering drive 1Singapore117574Singapore
| | - Swee Ching Tan
- Department of Materials Science and EngineeringNational University of Singapore9 Engineering drive 1Singapore117574Singapore
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22
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Wan S, Sinclair RC, Coveney PV. Uncertainty quantification in classical molecular dynamics. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2021; 379:20200082. [PMID: 33775140 PMCID: PMC8059622 DOI: 10.1098/rsta.2020.0082] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/02/2020] [Indexed: 05/24/2023]
Abstract
Molecular dynamics simulation is now a widespread approach for understanding complex systems on the atomistic scale. It finds applications from physics and chemistry to engineering, life and medical science. In the last decade, the approach has begun to advance from being a computer-based means of rationalizing experimental observations to producing apparently credible predictions for a number of real-world applications within industrial sectors such as advanced materials and drug discovery. However, key aspects concerning the reproducibility of the method have not kept pace with the speed of its uptake in the scientific community. Here, we present a discussion of uncertainty quantification for molecular dynamics simulation designed to endow the method with better error estimates that will enable it to be used to report actionable results. The approach adopted is a standard one in the field of uncertainty quantification, namely using ensemble methods, in which a sufficiently large number of replicas are run concurrently, from which reliable statistics can be extracted. Indeed, because molecular dynamics is intrinsically chaotic, the need to use ensemble methods is fundamental and holds regardless of the duration of the simulations performed. We discuss the approach and illustrate it in a range of applications from materials science to ligand-protein binding free energy estimation. This article is part of the theme issue 'Reliability and reproducibility in computational science: implementing verification, validation and uncertainty quantification in silico'.
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Affiliation(s)
- Shunzhou Wan
- Centre for Computational Science, University College London, Gordon Street, London WC1H 0AJ, UK
| | - Robert C. Sinclair
- Centre for Computational Science, University College London, Gordon Street, London WC1H 0AJ, UK
| | - Peter V. Coveney
- Centre for Computational Science, University College London, Gordon Street, London WC1H 0AJ, UK
- Institute for Informatics, Science Park 904, University of Amsterdam, 1098 XH Amsterdam, The Netherlands
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23
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Immanuel S, Ahmad Dar M, Sivasubramanian R, Rezaul Karim M, Kim DW, Gul R. Progress and Prospects on the Fabrication of Graphene-Based Nanostructures for Energy Storage, Energy Conversion and Biomedical Applications. Chem Asian J 2021; 16:1365-1381. [PMID: 33899344 DOI: 10.1002/asia.202100216] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/12/2021] [Indexed: 11/10/2022]
Abstract
Graphene, a two-dimensional (2D) layered material has attracted much attention from the scientific community due to its exceptional electrical, thermal, mechanical, biological and optical properties. Hence, numerous applications utilizing graphene-based materials could be conceived in next-generation electronics, chemical and biological sensing, energy conversion and storage, and beyond. The interaction between graphene surfaces with other materials plays a vital role in influencing its properties than other bulk materials. In this review, we outline the recent progress in the production of graphene and related 2D materials, and their uses in energy conversion (solar cells, fuel cells), energy storage (batteries, supercapacitors) and biomedical applications.
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Affiliation(s)
- Susan Immanuel
- Electrochemical sensors and energy materials laboratory, PSG Institute of Advanced Studies, Peelamedu, Coimbatore, 641004, India
| | - Mushtaq Ahmad Dar
- Center of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research (DSR), King Saud University, Riyadh, 11421, Saudi Arabia
| | - R Sivasubramanian
- Electrochemical sensors and energy materials laboratory, PSG Institute of Advanced Studies, Peelamedu, Coimbatore, 641004, India
| | - Mohammad Rezaul Karim
- Center of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research (DSR), King Saud University, Riyadh, 11421, Saudi Arabia.,K.A. CARE Energy Research and Innovation Center, Riyadh, 11451, Saudi Arabia
| | - Dong-Wan Kim
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Rukshana Gul
- Obesity Research Center, College of Medicine, King Saud University, P.O. Box 2925 (98), Riyadh, 11461, Saudi Arabia
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24
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Baskurt M, Nair RR, Peeters FM, Sahin H. Ultra-thin structures of manganese fluorides: conversion from manganese dichalcogenides by fluorination. Phys Chem Chem Phys 2021; 23:10218-10224. [PMID: 33881066 DOI: 10.1039/d1cp00293g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, it is predicted by density functional theory calculations that graphene-like novel ultra-thin phases of manganese fluoride crystals, that have nonlayered structures in their bulk form, can be stabilized by fluorination of manganese dichalcogenide crystals. First, it is shown that substitution of fluorine atoms with chalcogens in the manganese dichalcogenide host lattice is favorable. Among possible crystal formations, three stable ultra-thin structures of manganese fluoride, 1H-MnF2, 1T-MnF2 and MnF3, are found to be stable by total energy optimization calculations. In addition, phonon calculations and Raman activity analysis reveal that predicted novel single-layers are dynamically stable crystal structures displaying distinctive characteristic peaks in their vibrational spectrum enabling experimental determination of the corresponding phases. Differing from 1H-MnF2 antiferromagnetic (AFM) large gap semiconductor, 1T-MnF2 and MnF3 single-layers are semiconductors with ferromagnetic (FM) ground state.
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Affiliation(s)
- Mehmet Baskurt
- Department of Photonics, Izmir Institute of Technology, 35430, Izmir, Turkey.
| | - Rahul R Nair
- National Graphene Institute, University of Manchester, Manchester M13 9PL, UK and School of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, UK and Henry Royce Institute for Advanced Materials, Oxford Road, Manchester M13 9PL, UK
| | - Francois M Peeters
- Department of Physics, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Hasan Sahin
- Department of Photonics, Izmir Institute of Technology, 35430, Izmir, Turkey.
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25
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Lee HJ, Lim G, Yang E, Kim YS, Kwak MG, Kim Y. Thermally Conductive Film Fabricated Using Perforated Graphite Sheet and UV-Curable Pressure-Sensitive Adhesive. NANOMATERIALS 2021; 11:nano11010093. [PMID: 33401645 PMCID: PMC7824192 DOI: 10.3390/nano11010093] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/21/2020] [Accepted: 12/28/2020] [Indexed: 12/26/2022]
Abstract
Thermally conductive films play a crucial role in expanding the lifetime of electronics by dissipating concentrated heat to heatsinks. In this work, a thermally conductive film (g-TC film) was manufactured using a perforated graphite sheet (p-GS) and a UV-curable pressure-sensitive adhesive (PSA) by lamination. A novel UV-curable PSA was prepared by incorporating a UV-curable abietic acid ester into a PSA composition. The UV-curable PSA became a tack-free film upon UV irradiation; thus, a flexible g-TC film with a 52-μm thickness was obtained. The defects in the g-TC film caused by air bubbles were removed by treating the p-GS with oxygen plasma. As the UV-cured PSA made a joint through the holes in the p-GS, cleavage of the graphite was not observed after 10,000 U-folding test cycles with a folding radius of 1 mm. The calculated in-plane thermal conductivity of the fabricated g-TC film was 179 W∙m−1K−1, which was stable after the U-folding tests.
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26
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Wan S, Bhati AP, Zasada SJ, Coveney PV. Rapid, accurate, precise and reproducible ligand-protein binding free energy prediction. Interface Focus 2020; 10:20200007. [PMID: 33178418 PMCID: PMC7653346 DOI: 10.1098/rsfs.2020.0007] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/11/2020] [Indexed: 02/06/2023] Open
Abstract
A central quantity of interest in molecular biology and medicine is the free energy of binding of a molecule to a target biomacromolecule. Until recently, the accurate prediction of binding affinity had been widely regarded as out of reach of theoretical methods owing to the lack of reproducibility of the available methods, not to mention their complexity, computational cost and time-consuming procedures. The lack of reproducibility stems primarily from the chaotic nature of classical molecular dynamics (MD) and the associated extreme sensitivity of trajectories to their initial conditions. Here, we review computational approaches for both relative and absolute binding free energy calculations, and illustrate their application to a diverse set of ligands bound to a range of proteins with immediate relevance in a number of medical domains. We focus on ensemble-based methods which are essential in order to compute statistically robust results, including two we have recently developed, namely thermodynamic integration with enhanced sampling and enhanced sampling of MD with an approximation of continuum solvent. Together, these form a set of rapid, accurate, precise and reproducible free energy methods. They can be used in real-world problems such as hit-to-lead and lead optimization stages in drug discovery, and in personalized medicine. These applications show that individual binding affinities equipped with uncertainty quantification may be computed in a few hours on a massive scale given access to suitable high-end computing resources and workflow automation. A high level of accuracy can be achieved using these approaches.
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Affiliation(s)
- Shunzhou Wan
- Centre for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, UK
| | - Agastya P. Bhati
- Centre for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, UK
| | - Stefan J. Zasada
- Centre for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, UK
| | - Peter V. Coveney
- Centre for Computational Science, Department of Chemistry, University College London, London WC1H 0AJ, UK
- Computational Science Laboratory, Institute for Informatics, Faculty of Science, University of Amsterdam, 1098XH Amsterdam, The Netherlands
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Wu S, Wang X, Li Z, Zhang S, Xing F. Recent Advances in the Fabrication and Application of Graphene Microfluidic Sensors. MICROMACHINES 2020; 11:E1059. [PMID: 33265955 PMCID: PMC7760752 DOI: 10.3390/mi11121059] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/13/2020] [Accepted: 11/28/2020] [Indexed: 02/07/2023]
Abstract
This review reports the progress of the recent development of graphene-based microfluidic sensors. The introduction of microfluidics technology provides an important possibility for the advance of graphene biosensor devices for a broad series of applications including clinical diagnosis, biological detection, health, and environment monitoring. Compared with traditional (optical, electrochemical, and biological) sensing systems, the combination of graphene and microfluidics produces many advantages, such as achieving miniaturization, decreasing the response time and consumption of chemicals, improving the reproducibility and sensitivity of devices. This article reviews the latest research progress of graphene microfluidic sensors in the fields of electrochemistry, optics, and biology. Here, the latest development trends of graphene-based microfluidic sensors as a new generation of detection tools in material preparation, device assembly, and chip materials are summarized. Special emphasis is placed on the working principles and applications of graphene-based microfluidic biosensors, especially in the detection of nucleic acid molecules, protein molecules, and bacterial cells. This article also discusses the challenges and prospects of graphene microfluidic biosensors.
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Affiliation(s)
- Shigang Wu
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255049, China;
| | - Xin Wang
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255049, China; (X.W.); (S.Z.)
| | - Zongwen Li
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255049, China; (X.W.); (S.Z.)
| | - Shijie Zhang
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255049, China; (X.W.); (S.Z.)
| | - Fei Xing
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255049, China; (X.W.); (S.Z.)
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28
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Mohd Firdaus R, Berrada N, Desforges A, Mohamed AR, Vigolo B. From 2D Graphene Nanosheets to 3D Graphene-based Macrostructures. Chem Asian J 2020; 15:2902-2924. [PMID: 32779360 DOI: 10.1002/asia.202000747] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/09/2020] [Indexed: 12/29/2022]
Abstract
The combination of exceptional functionalities offered by 3D graphene-based macrostructures (GBMs) has attracted tremendous interest. 2D graphene nanosheets have a high chemical stability, high surface area and customizable porosity, which was extensively researched for a variety of applications including CO2 adsorption, water treatment, batteries, sensors, catalysis, etc. Recently, 3D GBMs have been successfully achieved through few approaches, including direct and non-direct self-assembly methods. In this review, the possible routes used to prepare both 2D graphene and interconnected 3D GBMs are described and analyzed regarding the involved chemistry of each 2D/3D graphene system. Improvement of the accessible surface of 3D GBMs where the interface exchanges are occurring is of great importance. A better control of the chemical mechanisms involved in the self-assembly mechanism itself at the nanometer scale is certainly the key for a future research breakthrough regarding 3D GBMs.
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Affiliation(s)
- Rabita Mohd Firdaus
- School of Chemical Engineering, Engineering Campus Universiti Sains, Malaysia, 14300, Nibong Tebal, Seberang, Perai Selatan, P., Pinang, Malaysia.,Université de Lorraine, CNRS, IJL, F-54000, Nancy, France
| | - Nawal Berrada
- Université de Lorraine, CNRS, IJL, F-54000, Nancy, France
| | | | - Abdul Rahman Mohamed
- School of Chemical Engineering, Engineering Campus Universiti Sains, Malaysia, 14300, Nibong Tebal, Seberang, Perai Selatan, P., Pinang, Malaysia
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29
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Amiri M, Nekoueian K, Saberi RS. Graphene-family materials in electrochemical aptasensors. Anal Bioanal Chem 2020; 413:673-699. [PMID: 32939567 DOI: 10.1007/s00216-020-02915-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/02/2020] [Accepted: 08/25/2020] [Indexed: 02/07/2023]
Abstract
The study of graphene-based carbon nanocomposites has remarkably increased in recent years. Functionalized graphene-based nanostructures, including graphene oxide and reduced graphene oxide, have great potential as new innovative electrode materials in the fabrication of novel electrochemical sensors. Electrochemical sensors based on aptamers attracted great attention because of their high sensitivity and selectivity, and simple instrumentation, as well as low production cost. Aptamers as a potent alternative to antibodies are functional nucleic acids with a high tendency to specific analytes. Electrochemical aptasensors show specific recognition ability for a wide range of analytes. Although aptamers are selected in vitro in contrast to antibodies, they are interesting due to advantages like high stability, easy chemical modifications, and the potential to be employed in nanostructured device fabrication or electrochemical sensing devices. Recently, new nanomaterials have shown a significant impact on the production of electrochemical sensors with high efficiency and performance. This review aims to give an outline of electrochemical aptasensors based on the graphene family materials and discuss the detection mechanism in this type of aptasensors. The present review summarizes some of the recent achievements in graphene-based aptasensors and includes their recent electroanalytical applications. Graphical Abstract Graphical Abstract.
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Affiliation(s)
- Mandana Amiri
- Department of Chemistry, University of Mohaghegh Ardabili, Daneshgah Street, Ardabil, 56199-11367, Iran.
| | - Khadijeh Nekoueian
- Department of Chemistry, University of Mohaghegh Ardabili, Daneshgah Street, Ardabil, 56199-11367, Iran
| | - Reyhaneh Sadat Saberi
- East Sage Investigative Corporation, Isfahan Science and Technology Town, Isfahan, 8415683111, Iran
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Vassaux M, Sinclair RC, Richardson RA, Suter JL, Coveney PV. The Role of Graphene in Enhancing the Material Properties of Thermosetting Polymers. ADVANCED THEORY AND SIMULATIONS 2019. [DOI: 10.1002/adts.201800168] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Maxime Vassaux
- Centre for Computational SciencesUniversity College London20 Gordon Street London WC1H 0AJ United Kingdom
| | - Robert C. Sinclair
- Centre for Computational SciencesUniversity College London20 Gordon Street London WC1H 0AJ United Kingdom
| | - Robin A. Richardson
- Centre for Computational SciencesUniversity College London20 Gordon Street London WC1H 0AJ United Kingdom
| | - James L. Suter
- Centre for Computational SciencesUniversity College London20 Gordon Street London WC1H 0AJ United Kingdom
| | - Peter V. Coveney
- Centre for Computational SciencesUniversity College London20 Gordon Street London WC1H 0AJ United Kingdom
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