1
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Hieu NT, Szieberth D, Makkos E. Exploring the mechanism of graphene-oxide reduction by hydrazine in a multi-epoxide environment with DFT calculations. Phys Chem Chem Phys 2024; 26:1917-1928. [PMID: 38115720 DOI: 10.1039/d3cp03574c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Reduction mechanisms between hydrazine and a multi-epoxide arrangement were investigated on a finite-sized graphene-oxide model with density functional theory. Three multistep reaction pathways were explored to examine different graphene-oxide (GO) deoxygenation scenarios. Epoxides sharing the same hexagonal ring show the typical one-by-one elimination of the oxygen functional groups through two protonation steps and the formation of cis-diazine and water. Nevertheless, the migration of one of the epoxy groups to an out-of-ring position has to precede the reduction. When a hexagonal ring separates two epoxy groups, forming a partially reduced surface with two hydroxyl groups is energetically favoured. This reduction product is so stable that it may remain on the surface after the termination of the reduction process. If further deoxygenation occurs, it can lead to surface fragmentation due to the ring opening of the remaining epoxides. The formation of nitrogen-containing functional groups at the edge of the graphene-oxide flake is also considered, and their surface presence is evaluated based on their thermodynamic stabilities.
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Affiliation(s)
- Nguyen Tri Hieu
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, 1111 Budapest, Műegyetem rkp 3, Hungary.
| | - Dénes Szieberth
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, 1111 Budapest, Műegyetem rkp 3, Hungary.
| | - Eszter Makkos
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, 1111 Budapest, Műegyetem rkp 3, Hungary.
- Computation-Driven Chemistry Research Group, HUN-REN, 1111 Budapest, Műegyetem rkp 3, Hungary
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2
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Sett A, Sarkar L, Majumder S, Bhattacharyya TK. Amplification of ammonia sensing performance through gate induced carrier modulation in Cur-rGO Silk-FET. Sci Rep 2023; 13:8159. [PMID: 37208351 DOI: 10.1038/s41598-023-34617-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/04/2023] [Indexed: 05/21/2023] Open
Abstract
Uncontrolled human and industrial activities lead to the increase in demand for selective gas sensors for detection of poisonous gases in our environment. Conventional resistive gas sensors suffer from predetermined sensitivity and poor selectivity among gases. This paper demonstrates curcumin reduced graphene oxide-silk field effect transistor for selective and sensitive detection of ammonia in air. The sensing layer was characterized by X-ray diffraction, FESEM and HRTEM to confirm its structural and morphological features. Raman spectroscopy, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy was carried out to analyze the functional moieties present in the sensing layer. Curcumin reduced graphene oxide introduces sufficient hydroxyl groups in the sensing layer to provide high degree of selectivity towards ammonia vapors. The performance of the sensor device was evaluated at positive, negative and zero gate voltage. Carrier modulation in the channel through gate electrostatics revealed that the minority carriers (electrons) in p-type reduced graphene oxide plays a pivotal role in enhancement of sensitivity of the sensor device. The sensor response was enhanced to 634% for 50 ppm ammonia at 0.6 V gate voltage compared to 23.2% and 39.3% at 0 V and - 3 V respectively. The sensor exhibited faster response and recovery at 0.6 V owing to higher mobility of electrons and quick charge transfer mechanism. The sensor exhibited satisfactory humidity resistant characteristics and high stability. Hence, curcumin reduced graphene oxide-silk field effect transistor device with proper gate bias elucidates excellent ammonia detection and may be a potential candidate for future room temperature, low power, portable gas detection system.
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Affiliation(s)
- Avik Sett
- Department of Electronics and Electrical Communication Engineering, IIT Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Lisa Sarkar
- Department of Electronics and Electrical Communication Engineering, IIT Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Santanab Majumder
- School of Nanoscience and Technology, IIT Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Tarun Kanti Bhattacharyya
- Department of Electronics and Electrical Communication Engineering, IIT Kharagpur, Kharagpur, 721302, West Bengal, India.
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3
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Alipour S, Hassani M, Hosseini SMH, Mousavi-Khoshdel SM. Facile preparation of covalently functionalized graphene with 2,4-dinitrophenylhydrazine and investigation of its characteristics. RSC Adv 2022; 13:558-569. [PMID: 36605623 PMCID: PMC9772862 DOI: 10.1039/d2ra06343c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
This article reports a fast and easy method for simultaneously in situ reducing and functionalizing graphene oxide. 2,4-Dinitrophenylhydrazine hydrate salt molecules are reduced by graphene oxide by reacting with oxide groups on the surface and removing these groups, and 2,4-dinitrophenylhydrazone groups are replaced with oxide groups. The synthesized materials have been investigated using Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), and UV absorption. Also, the morphology has been examined with a scanning electron microscope (SEM) and Brunauer-Emmett-Teller (BET) analysis. The result of the photocurrent response and electrochemical behavior of the samples through cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance spectroscopy (EIS) have been analyzed to investigate the effect of physical and chemical changes compared to graphene.
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Affiliation(s)
- S. Alipour
- Department of Chemistry, Iran University of Science and Technology (IUST)NarmakTehranIran+982177240480+982177240480
| | - M. Hassani
- Department of Chemistry, Iran University of Science and Technology (IUST)NarmakTehranIran+982177240480+982177240480
| | - S. M. H. Hosseini
- Department of Chemistry, Iran University of Science and Technology (IUST)NarmakTehranIran+982177240480+982177240480
| | - S. M. Mousavi-Khoshdel
- Department of Chemistry, Iran University of Science and Technology (IUST)NarmakTehranIran+982177240480+982177240480
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4
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Chupradit S, Km Nasution M, Rahman HS, Suksatan W, Turki Jalil A, Abdelbasset WK, Bokov D, Markov A, Fardeeva IN, Widjaja G, Shalaby MN, Saleh MM, Mustafa YF, Surendar A, Bidares R. Various types of electrochemical biosensors for leukemia detection and therapeutic approaches. Anal Biochem 2022; 654:114736. [PMID: 35588855 DOI: 10.1016/j.ab.2022.114736] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 01/25/2022] [Accepted: 05/12/2022] [Indexed: 02/07/2023]
Abstract
Leukemia often initiates following dysfunctions in hematopoietic stem cells lineages. Various types of leukemia, including acute lymphoblastic leukemia (ALL), chronic myelogenous leukemia (CML), acute promyelocytic leukemia (APL), and human T-cell leukemia/lymphoma virus type 1 (HTLV-1) can thus call for different diagnosis and treatment options. One of the most important subjects in leukemia is the early detection of the disease for effective therapeutic purposes. In this respect, biosensors detecting the molecules of deoxyribonucleic acid (DNA) as analytes are called genosensors or DNA biosensors. Electrochemical sensors, as the most significant approach, also involve reacting of chemical solutions with sensors to generate electrical signals proportional to analyte concentrations. Biosensors can further help detect cancer cells in the early stages of the disease. Moreover, electrochemical biosensors, developed based on various nanomaterials (NMs), can increase sensitivity to the detection of leukemia-related genes, e.g., BCR/ABL as a fusion gene and promyelocytic leukemia/retinoic acid receptor alpha (PML/RARα). Therefore, the present review reflects on previous studies recruiting different NMs for leukemia detection.
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Affiliation(s)
- Supat Chupradit
- Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | | | - Heshu Sulaiman Rahman
- Department of Medical Laboratory Sciences, Komar University of Science and Technology, Chaq-Chaq Qularaise, Sulaimaniyah, Iraq; College of Medicine, University of Sulaimani, Sulaimaniyah, Iraq
| | - Wanich Suksatan
- Faculty of Nursing, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, 10210, Thailand
| | - Abduladheem Turki Jalil
- Faculty of Biology and Ecology, Yanka Kupala State University of Grodno, 230023, Grodno, Belarus; College of Technical Engineering, The Islamic University, Najaf, Iraq.
| | - Walid Kamal Abdelbasset
- Department of Health and Rehabilitation Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al Kharj, Saudi Arabia; Department of Physical Therapy, Kasr Al-Aini Hospital, Cairo University, Giza, Egypt
| | - Dmitry Bokov
- Institute of Pharmacy, Sechenov First Moscow State Medical University, Russian Federation; Laboratory of Food Chemistry, Federal Research Center of Nutrition, Biotechnology and Food Safety, 2/14 Ustyinsky pr., Moscow, 109240, Russian Federation
| | | | | | | | - Mohammed Nader Shalaby
- Biological Sciences and Sports Health Department, Faculty of Physical Education, Suez Canal University, Egypt
| | - Marwan Mahmood Saleh
- Department of Biophysics, College of Applied Sciences, University of Anbar, Iraq
| | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, 41001, Iraq
| | - A Surendar
- Department of Pharmacology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Ramtin Bidares
- Department of Anatomy, Histology Forensic Medicine, Sapienza University of Rome, Rome, Italy
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5
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Liu S, Szkopek T, Barthelat F, Cerruti M. Layered Assembly of Graphene Oxide Paper for Mechanical Structures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8757-8765. [PMID: 35834350 DOI: 10.1021/acs.langmuir.2c00442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Graphene oxide (GO) paper is an attractive material because of high stiffness and strength, light weight, and multiple functionalities. While these properties are now widely exploited in nanoinclusions or flat sheets, three-dimensional (3D) structures from GO paper are not widely studied because of a lack of suitable processing methods. In this study, we report a layered assembly method to make stiff and strong 3D GO structures with the aid of a sodium tetraborate (borax) solution. By comparing mechanical properties of assembled GO paper using water or borax solution, we found that the borax-assembled layers had the highest stiffness. To demonstrate the versatility of our assembly protocol, we then fabricated a variety of 3D structures including I-beams, cylindrical tubes, and bridge-like structures from GO paper. These GO structures were stiff and light weight, and the stiffness to mass ratio was around 2-4 times higher than other polymer samples including cellulose, fluorinated ethylene propylene, and poly(vinyl alcohol). The versatile processing method to make stiff and strong GO structures will enable new engineering applications where nonplanar GO structures are required.
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Affiliation(s)
- Siyu Liu
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
| | - Thomas Szkopek
- Department of Electrical and Computer Engineering, McGill University, 3480 University Street, Montreal, QC H3A 0E9, Canada
| | - Francois Barthelat
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
- Department of Mechanical Engineering, University of Colorado, 427 UCB, 1111 Engineering Dr., Boulder, Colorado 80309, United States
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, 3610 University Street, Montreal, QC H3A 0C5, Canada
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6
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Li X, Liang X, Wang Y, Wang D, Teng M, Xu H, Zhao B, Han L. Graphene-Based Nanomaterials for Dental Applications: Principles, Current Advances, and Future Outlook. Front Bioeng Biotechnol 2022; 10:804201. [PMID: 35360406 PMCID: PMC8961302 DOI: 10.3389/fbioe.2022.804201] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 02/08/2022] [Indexed: 12/13/2022] Open
Abstract
With the development of nanotechnology, nanomaterials have been used in dental fields over the past years. Among them, graphene and its derivatives have attracted great attentions, owing to their excellent physicochemical property, morphology, biocompatibility, multi-differentiation activity, and antimicrobial activity. In our review, we summarized the recent progress about their applications on the dentistry. The synthesis methods, structures, and properties of graphene-based materials are discussed. Then, the dental applications of graphene-based materials are emphatically collected and described. Finally, the challenges and outlooks of graphene-based nanomaterials on the dental applications are discussed in this paper, aiming at inspiring more excellent studies.
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Affiliation(s)
- Xiaojing Li
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xin Liang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Yanhui Wang
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Dashan Wang
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Minhua Teng
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hao Xu
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Baodong Zhao
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, China
- *Correspondence: Baodong Zhao, ; Lei Han,
| | - Lei Han
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
- *Correspondence: Baodong Zhao, ; Lei Han,
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7
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Leve ZD, Iwuoha EI, Ross N. The Synergistic Properties and Gas Sensing Performance of Functionalized Graphene-Based Sensors. MATERIALS (BASEL, SWITZERLAND) 2022; 15:1326. [PMID: 35207867 PMCID: PMC8877958 DOI: 10.3390/ma15041326] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/22/2022] [Accepted: 01/26/2022] [Indexed: 11/17/2022]
Abstract
The detection of toxic gases has long been a priority in industrial manufacturing, environmental monitoring, medical diagnosis, and national defense. The importance of gas sensing is not only of high benefit to such industries but also to the daily lives of people. Graphene-based gas sensors have elicited a lot of interest recently, due to the excellent physical properties of graphene and its derivatives, such as graphene oxide (GO) and reduced graphene oxide (rGO). Graphene oxide and rGO have been shown to offer large surface areas that extend their active sites for adsorbing gas molecules, thereby improving the sensitivity of the sensor. There are several literature reports on the promising functionalization of GO and rGO surfaces with metal oxide, for enhanced performance with regard to selectivity and sensitivity in gas sensing. These synthetic and functionalization methods provide the ideal combination/s required for enhanced gas sensors. In this review, the functionalization of graphene, synthesis of heterostructured nanohybrids, and the assessment of their collaborative performance towards gas-sensing applications are discussed.
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Affiliation(s)
| | | | - Natasha Ross
- SensorLab, Chemistry Department, University of the Western Cape, Cape Town 7535, South Africa; (Z.D.L.); (E.I.I.)
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8
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Abstract
Cost-effective, rapid, and accurate virus detection technologies play key roles in reducing viral transmission. Prompt and accurate virus detection enables timely treatment and effective quarantine of virus carrier, and therefore effectively reduces the possibility of large-scale spread. However, conventional virus detection techniques often suffer from slow response, high cost or sophisticated procedures. Recently, two-dimensional (2D) materials have been used as promising sensing platforms for the high-performance detection of a variety of chemical and biological substances. The unique properties of 2D materials, such as large specific area, active surface interaction with biomolecules and facile surface functionalization, provide advantages in developing novel virus detection technologies with fast response and high sensitivity. Furthermore, 2D materials possess versatile and tunable electronic, electrochemical and optical properties, making them ideal platforms to demonstrate conceptual sensing techniques and explore complex sensing mechanisms in next-generation biosensors. In this review, we first briefly summarize the virus detection techniques with an emphasis on the current efforts in fighting again COVID-19. Then, we introduce the preparation methods and properties of 2D materials utilized in biosensors, including graphene, transition metal dichalcogenides (TMDs) and other 2D materials. Furthermore, we discuss the working principles of various virus detection technologies based on emerging 2D materials, such as field-effect transistor-based virus detection, electrochemical virus detection, optical virus detection and other virus detection techniques. Then, we elaborate on the essential works in 2D material-based high-performance virus detection. Finally, our perspective on the challenges and future research direction in this field is discussed.
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9
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Zhai W, Xiong T, He Z, Lu S, Lai Z, He Q, Tan C, Zhang H. Nanodots Derived from Layered Materials: Synthesis and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006661. [PMID: 34212432 DOI: 10.1002/adma.202006661] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/01/2020] [Indexed: 06/13/2023]
Abstract
Layered 2D materials, such as graphene, transition metal dichalcogenides, transition metal oxides, black phosphorus, graphitic carbon nitride, hexagonal boron nitride, and MXenes, have attracted intensive attention over the past decades owing to their unique properties and wide applications in electronics, catalysis, energy storage, biomedicine, etc. Further reducing the lateral size of layered 2D materials down to less than 10 nm allows for preparing a new class of nanostructures, namely, nanodots derived from layered materials. Nanodots derived from layered materials not only can exhibit the intriguing properties of nanodots due to the size confinement originating from the ultrasmall size, but also can inherit some unique properties of ultrathin layered 2D materials, making them promising candidates in a wide range of applications, especially in biomedicine and catalysis. Here, a comprehensive summary on the materials categories, advantages, synthesis methods, and potential applications of these nanodots derived from layered materials is provided. Finally, personal insights about the challenges and future directions in this promising research field are also given.
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Affiliation(s)
- Wei Zhai
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Tengfei Xiong
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Zhen He
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Shiyao Lu
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Zhuangchai Lai
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Qiyuan He
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Chaoliang Tan
- Department of Electrical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Hua Zhang
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, China
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10
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Abdelhalim AOE, Sharoyko VV, Ageev SV, Farafonov VS, Nerukh DA, Postnov VN, Petrov AV, Semenov KN. Graphene Oxide of Extra High Oxidation: A Wafer for Loading Guest Molecules. J Phys Chem Lett 2021; 12:10015-10024. [PMID: 34618465 DOI: 10.1021/acs.jpclett.1c02766] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We present a new modification of graphene oxide with very high content (85 wt %) of oxygen-containing functional groups (hydroxy, epoxy, lactol, carboxyl, and carbonyl groups) that forms stable aqueous dispersion in up to 9 g·L-1 concentration solutions. A novel faster method of the synthesis is described that produces up to 1 kg of the material and allows controlling the particle size in solution. The synthesized compound was characterized by various physicochemical methods and molecular dynamics modeling, revealing a unique structure in the form of a multilayered wafer of several sheets thick, where each sheet is highly corrugated. The ragged structure of the sheets forms pockets with hindered mobility of water that leads to the possibility of trapping guest molecules.
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Affiliation(s)
- Abdelsattar O E Abdelhalim
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
- Environmental Research Department, National Center for Social and Criminological Research (NCSCR), Giza 11561, Egypt
| | - Vladimir V Sharoyko
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
- Pavlov First Saint Petersburg State Medical University, 6-8 L'va Tolstogo ulitsa, Saint Petersburg, 197022, Russia
- A. M. Granov Russian Research Centre for Radiology and Surgical Technologies, 70 Leningradskaya ulitsa, Saint Petersburg, 197758, Russia
| | - Sergei V Ageev
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
- Pavlov First Saint Petersburg State Medical University, 6-8 L'va Tolstogo ulitsa, Saint Petersburg, 197022, Russia
| | - Vladimir S Farafonov
- V. N. Karazin Kharkiv National University, 4 Svobody ploshchad', Kharkiv, 61022, Ukraine
| | - Dmitry A Nerukh
- Department of Mathematics, Aston University, Birmingham, B4 7ET, The United Kingdom
| | - Viktor N Postnov
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
| | - Andrey V Petrov
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
| | - Konstantin N Semenov
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
- Pavlov First Saint Petersburg State Medical University, 6-8 L'va Tolstogo ulitsa, Saint Petersburg, 197022, Russia
- A. M. Granov Russian Research Centre for Radiology and Surgical Technologies, 70 Leningradskaya ulitsa, Saint Petersburg, 197758, Russia
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11
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Shen J, Gao C, Ye X, He Y, Tao X, Yang B, Wang M, Ye G. Catalyst-free growth of single- to few-layered graphene on ionic liquid surfaces at room temperature. CrystEngComm 2021. [DOI: 10.1039/d1ce00411e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Single- to few-layered graphene is successfully fabricated on ionic liquid surfaces by a modified arc-discharge evaporation method without the assistance of catalysts and at room temperature.
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Affiliation(s)
- Jiawei Shen
- Department of Physics
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Cheng Gao
- Department of Physics
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Xuheng Ye
- Department of Physics
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Yi He
- Department of Physics
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Xiangming Tao
- Department of Physics
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Bo Yang
- Department of Physics
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Miao Wang
- Department of Physics
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Gaoxiang Ye
- Department of Physics
- Zhejiang University
- Hangzhou 310027
- P. R. China
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12
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Altering molecular polarity via assembly induced charge transfer for high selectivity detection of Cu2+. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Kim Y, Kim T, Lee J, Choi YS, Moon J, Park SY, Lee TH, Park HK, Lee SA, Kwon MS, Byun HG, Lee JH, Lee MG, Hong BH, Jang HW. Tailored Graphene Micropatterns by Wafer-Scale Direct Transfer for Flexible Chemical Sensor Platform. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2004827. [PMID: 33215741 DOI: 10.1002/adma.202004827] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/28/2020] [Indexed: 05/22/2023]
Abstract
2D materials, such as graphene, exhibit great potential as functional materials for numerous novel applications due to their excellent properties. The grafting of conventional micropatterning techniques on new types of electronic devices is required to fully utilize the unique nature of graphene. However, the conventional lithography and polymer-supported transfer methods often induce the contamination and damage of the graphene surface due to polymer residues and harsh wet-transfer conditions. Herein, a novel strategy to obtain micropatterned graphene on polymer substrates using a direct curing process is demonstrated. Employing this method, entirely flexible, transparent, well-defined self-activated graphene sensor arrays, capable of gas discrimination without external heating, are fabricated on 4 in. wafer-scale substrates. Finite element method simulations show the potential of this patterning technique to maximize the performance of the sensor devices when the active channels of the 2D material are suspended and nanoscaled. This study contributes considerably to the development of flexible functional electronic devices based on 2D materials.
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Affiliation(s)
- Yeonhoo Kim
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87544, USA
| | - Taehoon Kim
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jinwoo Lee
- Materials Deformation Department, Korea Institute of Materials Science, Changwon, 51508, Republic of Korea
| | - Yong Seok Choi
- Graphene Research Center and Graphene Square Inc., Advanced Institute of Convergence Technology, Seoul National University, Suwon, 16229, Republic of Korea
| | - Joonhee Moon
- Research Center for Materials Analysis, Korea Basic Science Institute, Gwahak-ro, Yuseong-gu, Daejeon, 34133, Republic of Korea
| | - Seo Yun Park
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Tae Hyung Lee
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hoon Kee Park
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sol A Lee
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Min Sang Kwon
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hyung-Gi Byun
- Division of Electronics, Information and Communication Engineering, Kangwon National University, Samcheok, 25913, Republic of Korea
| | - Jong-Heun Lee
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Myoung-Gyu Lee
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Byung Hee Hong
- Graphene Research Center and Graphene Square Inc., Advanced Institute of Convergence Technology, Seoul National University, Suwon, 16229, Republic of Korea
- Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ho Won Jang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
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14
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Liu S, Cerruti M, Barthelat F. Plastic Forming of Graphene Oxide Membranes into 3D Structures. ACS NANO 2020; 14:15936-15943. [PMID: 33179503 DOI: 10.1021/acsnano.0c07344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Flat, membrane-like materials made of graphene oxide (GO) nanoflakes have extraordinary mechanical properties including high stiffness, high strength, and low weight. However, the forming of complex nonplanar structures from flat GO membranes is difficult because of the intrinsic brittleness of GO. Here we present a simple and low-cost method to plasticize vacuum-filtrated GO membranes using a cellulose additive. Compared with the pure GO membrane, the GO-cellulose membranes had a lower Young's modulus but significantly improved ductility. Using the flat GO-cellulose membrane, we successfully embossed hemispherical caps with high geometrical fidelity, smooth surfaces, and no tearing or other damages to the membrane. The stiffness of the embossed 3D structure was increased further by cross-linking with a borax solution. Hemispherical caps made of 75 wt % GO with 25 wt % cellulose slurry combining borax cross-linking showed the highest stiffness. This study extends the applications of GO membranes and allows the harnessing of their extraordinary properties to nonplanar structures.
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Affiliation(s)
- Siyu Liu
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, 817 Sherbrooke Street West, Montreal, QC H3A 0C5, Canada
| | - Francois Barthelat
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
- Department of Mechanical Engineering, University of Colorado, 427 UCB, 1111 Engineering Drive, Boulder, Colorado 80309, United States
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15
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Xiao J, Zhan H, Wang X, Xu ZQ, Xiong Z, Zhang K, Simon GP, Liu JZ, Li D. Electrolyte gating in graphene-based supercapacitors and its use for probing nanoconfined charging dynamics. NATURE NANOTECHNOLOGY 2020; 15:683-689. [PMID: 32572227 DOI: 10.1038/s41565-020-0704-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 05/01/2020] [Indexed: 05/28/2023]
Abstract
Graphene-based nanoporous materials have been extensively explored as high-capacity ion electrosorption electrodes for supercapacitors. However, little attention has been paid to exploiting the interactions between electrons that reside in the graphene lattice and the ions adsorbed between the individual graphene sheets. Here we report that the electronic conductance of a multilayered reduced graphene oxide membrane, when used as a supercapacitor electrode, can be modulated by the ionic charging state of the membrane, which gives rise to a collective electrolyte gating effect. This gating effect provides an in-operando approach for probing the charging dynamics of supercapacitors electrically. Using this approach, we observed a pore-size-dependent ionic hysteresis or memory effect in reduced graphene oxide membranes when the interlayer distance is comparable to the ion diameter. Our results may stimulate the design of novel devices based on the ion-electron interactions under nanoconfinement.
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Affiliation(s)
- Jing Xiao
- Department of Chemical Engineering, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Materials Science and Engineering, Monash University, Melbourne, Victoria, Australia
| | - Hualin Zhan
- Department of Chemical Engineering, The University of Melbourne, Melbourne, Victoria, Australia
| | - Xiao Wang
- Department of Chemical Engineering, The University of Melbourne, Melbourne, Victoria, Australia
| | - Zai-Quan Xu
- Department of Materials Science and Engineering, Monash University, Melbourne, Victoria, Australia
- School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Zhiyuan Xiong
- Department of Chemical Engineering, The University of Melbourne, Melbourne, Victoria, Australia
| | - Ke Zhang
- Department of Materials Science and Engineering, Monash University, Melbourne, Victoria, Australia
| | - George P Simon
- Department of Materials Science and Engineering, Monash University, Melbourne, Victoria, Australia
| | - Jefferson Zhe Liu
- Department of Mechanical Engineering, The University of Melbourne, Melbourne, Victoria, Australia
| | - Dan Li
- Department of Chemical Engineering, The University of Melbourne, Melbourne, Victoria, Australia.
- Department of Materials Science and Engineering, Monash University, Melbourne, Victoria, Australia.
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16
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Fan Q, Wang L, Xu D, Duo Y, Gao J, Zhang L, Wang X, Chen X, Li J, Zhang H. Solution-gated transistors of two-dimensional materials for chemical and biological sensors: status and challenges. NANOSCALE 2020; 12:11364-11394. [PMID: 32428057 DOI: 10.1039/d0nr01125h] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two-dimensional (2D) materials have been the focus of materials research for many years due to their unique fascinating properties and large specific surface area (SSA). They are very sensitive to the analytes (ions, glucose, DNA, protein, etc.), resulting in their wide-spread development in the field of sensing. New 2D materials, as the basis of applications, are constantly being fabricated and comprehensively studied. In a variety of sensing applications, the solution-gated transistor (SGT) is a promising biochemical sensing platform because it can work at low voltage in different electrolytes, which is ideal for monitoring body fluids in wearable electronics, e-skin, or implantable devices. However, there are still some key challenges, such as device stability and reproducibility, that must be faced in order to pave the way for the development of cost-effective, flexible, and transparent SGTs with 2D materials. In this review, the device preparation, device physics, and the latest application prospects of 2D materials-based SGTs are systematically presented. Besides, a bold perspective is also provided for the future development of these devices.
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Affiliation(s)
- Qin Fan
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Lude Wang
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen 518060, P. R. China.
| | - Duo Xu
- Institute of Optoelectronics & Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
| | - Yanhong Duo
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen 518060, P. R. China.
| | - Jie Gao
- Institute of Optoelectronics & Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
| | - Lei Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Xianbao Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Xiang Chen
- Institute of Optoelectronics & Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
| | - Jinhua Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Han Zhang
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen 518060, P. R. China.
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17
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Byrne K, Shik A, Wisniewski D, Ruda HE. Rethinking the Characterization of Nanoscale Field-Effect Transistors: A Universal Approach. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1907321. [PMID: 32378309 DOI: 10.1002/smll.201907321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 02/02/2020] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
Standard methods for calculating transport parameters in nanoscale field-effect transistors (FETs), namely carrier concentration and mobility, require a linear connection between the gate voltage and channel conductance; however, this is often not the case. One reason often overlooked is that shifts in chemical and electric potential can partially compensate each other, commonly referred to as quantum capacitance. In nanoscale FETs, capacitance is often unmeasurable and an analytical formula is required, which assumes the conducting channel as metallic and common methods of determining threshold voltage no longer couple properly into transport equations. As present and future FET structures become smaller and have increased channel-gate coupling, this issue will render standard methods impossible to use. This work discusses the validity of common methods of characterization for nanoscale FETs, develops a universal model to determine transport properties by only measuring the threshold voltage of an FET and presents a new parameter to easily classify FETs as either quantum capacitance-limited or metallic approximated charge transport. Also considered in this work is electrical hysteresis from trap states and, in combination with the proposed universal model, novel techniques are introduced to measure and remove the errors associated with these effects often ignored in literature.
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Affiliation(s)
- Kristopher Byrne
- Centre for Advanced Nanotechnology, University of Toronto, 170 College Street, Toronto, Ontario, M5S 3E3, Canada
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E3, Canada
| | - Alexander Shik
- Centre for Advanced Nanotechnology, University of Toronto, 170 College Street, Toronto, Ontario, M5S 3E3, Canada
| | - David Wisniewski
- Centre for Advanced Nanotechnology, University of Toronto, 170 College Street, Toronto, Ontario, M5S 3E3, Canada
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E3, Canada
| | - Harry E Ruda
- Centre for Advanced Nanotechnology, University of Toronto, 170 College Street, Toronto, Ontario, M5S 3E3, Canada
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E3, Canada
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
- Jilin Normal University, 1301 Haifeng Street, Siping, Jilin Province, 136000, China
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18
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Dual-modal label-free genosensor based on hemoglobin@gold nanocluster stabilized graphene nanosheets for the electrochemical detection of BCR/ABL fusion gene. Talanta 2020; 217:121093. [PMID: 32498906 DOI: 10.1016/j.talanta.2020.121093] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/23/2020] [Accepted: 04/25/2020] [Indexed: 12/11/2022]
Abstract
For the first time, we have successfully synthesized stable graphene nanosheets from graphite powder through sonication in the hemoglobin-capped gold nanoclusters (Hb@AuNCs) solution for biosensing application. This approach, as a simple method for the exfoliation and fragmentation of graphite in a nanocluster solution, enabled us to produce stable aqueous graphene dispersions at low cost and without the need for hazardous chemicals or tedious experimental procedures. In this method, Hb@AuNCs were used not only as stabilizing agent of graphene through non-covalent bonding, but also as dispersing agent of few-layer graphene nanosheets. The Hb@AuNCs stabilized graphene (Hb@AuNCs-G) was characterized by high resolution transmission electron microscopy (HRTEM), zeta-sizer and Raman spectroscopy. Then, the graphene nanosheets were applied as a novel versatile electrochemical platform for ultrasensitive biosensing of short DNA species of chronic myelogenous leukemia (CML) based on the "signal off" and "signal on" strategies. For this purpose, a single strand DNA (ssDNA) was immobilized on the Hb@AuNCs-G/AuNPs modified electrode surface and acted as the biorecognition element. Methylene blue (MB), as the signaling probe, was then intercalated into the ssDNA. The intercalated MB was liberated upon interaction with the synthetic complementary DNA (cDNA, target), thereby resulting in the apparent reduction of MB redox signal. This designed "signal off" sensing system enabled the voltammetric determination of the target cDNA over a dynamic linear range (DLR) of 0.1 fM to 10 pM with a limit of detection (LOD) of 0.037 fM. In the "signal on" strategy, the response to the cDNA was detected by monitoring the change in the electron transfer resistance (Rct) using the ferro/ferricyanide system as a redox probe. The charge transfer resistance of the probe was found to increase linearly with increasing concentration of target cDNA in the range of 0.1 fM-10 pM with a limit of detection of 0.030 fM. Finally, the selectivity and feasibility of genosensor was evaluated by the analysis of derived nucleotides from mismatched sequences and the clinical samples of patients with leukemia as real samples, respectively.
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19
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Zarnegaryan A, Elhamifar D. An efficient and heterogeneous Pd-containing modified graphene oxide catalyst for preparation of biaryl compounds. Heliyon 2020; 6:e03741. [PMID: 32280806 PMCID: PMC7138914 DOI: 10.1016/j.heliyon.2020.e03741] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/26/2020] [Accepted: 03/31/2020] [Indexed: 11/26/2022] Open
Abstract
In this research, a novel palladium-containing modified-graphene oxide (GO-N2S2/Pd) catalyst is designed and synthesized for the Suzuki-Miyaura reaction. The prepared catalyst was characterized by different techniques, such as thermogravimetric analysis (TGA), transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), energy-dispersive X-ray (EDX), Raman spectroscopy, X-ray diffraction (XRD), and inductively coupled plasma optical emission spectrometry (ICP-OES). The catalytic performance of the synthesized catalyst was evaluated in the Suzuki cross-coupling reaction of phenylboronic acid and aryl halides with K2CO3 as a base. Good recoverability and reusability of this heterogeneous catalyst at the end of the reaction were observed.
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Affiliation(s)
- Ali Zarnegaryan
- Department of Chemistry, Yasouj University, Yasouj, 75918-74831, Iran
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20
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Juvaid MM, Sarkar S, Gogoi PK, Ghosh S, Annamalai M, Lin YC, Prakash S, Goswami S, Li C, Hooda S, Jani H, Breese MBH, Rusydi A, Pennycook SJ, Suenaga K, Rao MSR, Venkatesan T. Direct Growth of Wafer-Scale, Transparent, p-Type Reduced-Graphene-Oxide-like Thin Films by Pulsed Laser Deposition. ACS NANO 2020; 14:3290-3298. [PMID: 32101687 DOI: 10.1021/acsnano.9b08916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Reduced graphene oxide (rGO) has attracted significant interest in an array of applications ranging from flexible optoelectronics, energy storage, sensing, and very recently as membranes for water purification. Many of these applications require a reproducible, scalable process for the growth of large-area films of high optical and electronic quality. In this work, we report a one-step scalable method for the growth of reduced-graphene-oxide-like (rGO-like) thin films via pulsed laser deposition (PLD) of sp2 carbon in an oxidizing environment. By deploying an appropriate laser beam scanning technique, we are able to deposit wafer-scale uniform rGO-like thin films with ultrasmooth surfaces (roughness <1 nm). Further, in situ control of the growth environment during the PLD process allows us to tailor its hybrid sp2-sp3 electronic structure. This enables us to control its intrinsic optoelectronic properties and helps us achieve some of the lowest extinction coefficients and refractive index values (0.358 and 1.715, respectively, at 2.236 eV) as compared to chemically grown rGO films. Additionally, the transparency and conductivity metrics of our PLD grown thin films are superior to other p-type rGO films and conducting oxides. Unlike chemical methods, our growth technique is devoid of catalysts and is carried out at lower process temperatures. This would enable the integration of these thin films with a wide range of material heterostructures via direct growth.
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Affiliation(s)
- M M Juvaid
- Nano Functional Materials Technology Centre, Material Science and Research Centre, Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
- Department of Physics, National University of Singapore, Singapore 117542
| | - Soumya Sarkar
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117456
| | - Pranjal Kumar Gogoi
- Department of Physics, National University of Singapore, Singapore 117542
- National Institute of Advanced Industrial Science and Technology (AIST), AIST Central 5, Tsukuba 305-8565, Japan
- Department of Applied Sciences, Tezpur University, Napaam 784028, India
| | - Siddhartha Ghosh
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
- Department of Physics, SRM University - AP, Amaravati, Andhra Pradesh 522502, India
| | - Meenakshi Annamalai
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
- Yale-NUS College, 16 College Avenue West, Singapore 138527
| | - Yung-Chang Lin
- National Institute of Advanced Industrial Science and Technology (AIST), AIST Central 5, Tsukuba 305-8565, Japan
| | - Saurav Prakash
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117456
| | - Sreetosh Goswami
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117456
| | - Changjian Li
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575
| | - Sonu Hooda
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
| | - Hariom Jani
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117456
| | - Mark B H Breese
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
- Department of Physics, National University of Singapore, Singapore 117542
- Singapore Synchrotron Light Source, National University of Singapore, 5 Research Link, Singapore 117603
| | - Andrivo Rusydi
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
- Department of Physics, National University of Singapore, Singapore 117542
- Singapore Synchrotron Light Source, National University of Singapore, 5 Research Link, Singapore 117603
| | - Stephen John Pennycook
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117456
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575
| | - Kazu Suenaga
- National Institute of Advanced Industrial Science and Technology (AIST), AIST Central 5, Tsukuba 305-8565, Japan
| | - M S Ramachandra Rao
- Nano Functional Materials Technology Centre, Material Science and Research Centre, Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India
| | - Thirumalai Venkatesan
- NUSNNI-NanoCore, National University of Singapore, Singapore 117411
- Department of Physics, National University of Singapore, Singapore 117542
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117456
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583
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21
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Lee CW, Suh JM, Jang HW. Chemical Sensors Based on Two-Dimensional (2D) Materials for Selective Detection of Ions and Molecules in Liquid. Front Chem 2019; 7:708. [PMID: 31803712 PMCID: PMC6873591 DOI: 10.3389/fchem.2019.00708] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 10/09/2019] [Indexed: 01/27/2023] Open
Abstract
Up until now, two-dimensional (2D) materials have been researched vigorously for application to sensing ions and molecules in liquid due to their unique structural, chemical, and electronic properties. Features of 2D materials such as high surface area-to-volume ratios and various reaction sites are ideal characteristics for fabricating state-of-the-art high-performed chemical sensors. This review particularly focuses on the detection of pH, metal ions, and biomolecules in liquid media. The final goal of the ion/molecule sensors is a development of the electronic tongue or taste sensors that can be used in medical, food, biotechnology, and health applications. Herein, we introduce recent advances in the field of ion/molecule sensors in liquid media based on 2D materials, especially concentrating in graphene and MoS2, and will emphasize the opportunities and challenges of these unique sensing materials and devices.
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Affiliation(s)
- Chung Won Lee
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, South Korea
| | - Jun Min Suh
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, South Korea
| | - Ho Won Jang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, South Korea
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22
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Tang H, Feng H, Wang H, Wan X, Liang J, Chen Y. Highly Conducting MXene-Silver Nanowire Transparent Electrodes for Flexible Organic Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25330-25337. [PMID: 31268659 DOI: 10.1021/acsami.9b04113] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
MXene, a new class of two-dimensional materials, offers a unique combination of metallic conductivity and hydrophilicity. This material has shown great promise in numerous applications including electromagnetic interference shielding, sensing, energy storage, and catalysis. In this paper, we report on the fabrication of transparent, conductive, and flexible MXene/silver nanowire (AgNW) hybrid films, resulting in the highest figure of merit (162.49) in the reported literature to date regarding an MXene-based transparent electrode. The hybrid films, prepared via a simple and scalable solution-processed method, exhibit good electrical conductivity, high transmittance, low roughness, work function matching, and robust mechanical performance. Following film fabrication, the hybrid electrodes were demonstrated to function as transparent electrodes in fullerene molecule PTB7-Th:PC71BM and nonfullerene molecule PBDB-T:ITIC organic photovoltaics (OPVs). In an effort to further improve the performance of flexible OPVs, a ternary structure of PBDB-T:ITIC:PC71BM was demonstrated, resulting in a power conversion efficiency (PCE) of 8.30%. Mechanical properties were also quantified, with the flexible ternary organic solar cells capable of retaining 84.6% of the original PCE after 1000 bending and unbending cycles to a 5 mm bending radius. These optoelectronic and mechanical performance metrics represent a breakthrough in the field of flexible optoelectronics.
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23
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Li M, Zhang T, Wang P, Li M, Wang J, Liu Z. Temperature Characteristics of a Pressure Sensor Based on BN/Graphene/BN Heterostructure. SENSORS 2019; 19:s19102223. [PMID: 31091736 PMCID: PMC6567352 DOI: 10.3390/s19102223] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 11/16/2022]
Abstract
Temperature is a significant factor in the application of graphene-based pressure sensors. The influence of temperature on graphene pressure sensors is twofold: an increase in temperature causes the substrates of graphene pressure sensors to thermally expand, and thus, the graphene membrane is stretched, leading to an increase in the device resistance; an increase in temperature also causes a change in the graphene electrophonon coupling, resulting in a decrease in device resistance. To investigate which effect dominates the influence of temperature on the pressure sensor based on the graphene–boron nitride (BN) heterostructure proposed in our previous work, the temperature characteristics of two BN/graphene/BN heterostructures with and without a microcavity beneath them were analyzed in the temperature range 30–150 °C. Experimental results showed that the resistance of the BN/graphene/BN heterostructure with a microcavity increased with the increase in temperature, and the temperature coefficient was up to 0.25%°C−1, indicating the considerable influence of thermal expansion in such devices. In contrast, with an increase in temperature, the resistance of the BN/graphene/BN heterostructure without a microcavity decreased with a temperature coefficient of −0.16%°C−1. The linearity of the resistance change rate (ΔR/R)–temperature curve of the BN/graphene/BN heterostructure without a microcavity was better than that of the BN/graphene/BN heterostructure with a microcavity. These results indicate that the influence of temperature on the pressure sensors based on BN/graphene/BN heterostructures should be considered, especially for devices with pressure microcavities. BN/graphene/BN heterostructures without microcavities can be used as high-performance temperature sensors.
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Affiliation(s)
- Mengwei Li
- Key Laboratory of Instrument Science & Dynamic Measurement, North University of China, Taiyuan 030051, China.
- North University of China, Academy for Advanced Interdisciplinary Research, Taiyuan 030051, China.
- Institute of Microelectronics, Tsinghua University, Beijing 100084, China.
| | - Teng Zhang
- Key Laboratory of Instrument Science & Dynamic Measurement, North University of China, Taiyuan 030051, China.
| | - Pengcheng Wang
- Key Laboratory of Instrument Science & Dynamic Measurement, North University of China, Taiyuan 030051, China.
| | - Minghao Li
- Key Laboratory of Instrument Science & Dynamic Measurement, North University of China, Taiyuan 030051, China.
| | - Junqiang Wang
- Microsystem Integration Center, North University of China, Taiyuan 030051, China.
| | - Zewen Liu
- Institute of Microelectronics, Tsinghua University, Beijing 100084, China.
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24
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Liu Z, Zhang Z, Hu F, Duan X, Ye X. Adsorption performance and micro-structural morphology of a novel magnetic composite adsorbent for removing Cd2+ from water. Microchem J 2019. [DOI: 10.1016/j.microc.2018.12.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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25
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Preparation of Layered Polyethylene Oxide/rGO Composite: Flexible Lateral Heat Spreaders. Polymers (Basel) 2019; 11:polym11030532. [PMID: 30960516 PMCID: PMC6473242 DOI: 10.3390/polym11030532] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/15/2019] [Accepted: 03/15/2019] [Indexed: 11/16/2022] Open
Abstract
In this paper, high thermal conductive polyethylene oxide (PEO)/reduced graphene oxide (rGO) composite is prepared via large-scale green reduction. Flexible layered PEO/GO composites are pre-prepared in aqueous solution. It is demonstrated that PEO chains can form hydrogen bonds with GO. Being driven by hydrogen bonds, GO/PEO composites show homogeneous and lateral highly oriented structures, resulting in excellent mechanical properties. The pre-prepared composite films are large scale soaked into ascorbic acid solution. GO nanosheets in the matrix of the composites can be reduced by ascorbic acid. The results indicate that PEO chains can repair the damage of the films caused by the reduction process. Therefore, the films can maintain their original configuration and still keep excellent flexibility. By comparison, pristine GO films are totally destroyed when the same reduction is experienced. Due to the presence of PEO, the lateral highly oriented structure of the composite will not be damaged. After reduction, the thermal conductivity of the composite reaches to 12.03 W m-1 K-1 along the rGO nanosheet oriented direction.
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Kamyshny A, Magdassi S. Conductive nanomaterials for 2D and 3D printed flexible electronics. Chem Soc Rev 2019; 48:1712-1740. [PMID: 30569917 DOI: 10.1039/c8cs00738a] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This review describes recent developments in the field of conductive nanomaterials and their application in 2D and 3D printed flexible electronics, with particular emphasis on inks based on metal nanoparticles and nanowires, carbon nanotubes, and graphene sheets. We present the basic properties of these nanomaterials, their stabilization in dispersions, formulation of conductive inks and formation of conductive patterns on flexible substrates (polymers, paper, textile) by using various printing technologies and post-printing processes. Applications of conductive nanomaterials for fabrication of various 2D and 3D electronic devices are also briefly discussed.
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Affiliation(s)
- Alexander Kamyshny
- Casali Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, 91904 Jerusalem, Israel.
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Santos NF, Pereira SO, Fernandes AJS, Vasconcelos TL, Fung CM, Archanjo BS, Achete CA, Teixeira SR, Silva RF, Costa FM. Physical Structure and Electrochemical Response of Diamond-Graphite Nanoplatelets: From CVD Synthesis to Label-Free Biosensors. ACS APPLIED MATERIALS & INTERFACES 2019; 11:8470-8482. [PMID: 30694644 DOI: 10.1021/acsami.9b00352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hybrid diamond-graphite nanoplatelet (DGNP) thin films are produced and applied to label-free impedimetric biosensors for the first time, using avidin detection as a proof of concept. The DGNPs are synthesized by microwave plasma chemical vapor deposition through H2/CH4/N2 gas mixtures in a reproducible and rapid single-step process. The material building unit consists of an inner two-dimensional-like nanodiamond with preferential vertical alignment covered by and covalently bound to nanocrystalline graphite grains, exhibiting {111}diamond||{0002}graphite epitaxy. The DGNP films' morphostructural aspects are of interest for electrochemical transduction, in general, and for Faradaic impedimetric biosensors, in particular, combining enhanced surface area for biorecognition element loading and facile Faradaic charge transfer. Charge transfer rate constants in phosphate buffer saline/[Fe(CN)6]4- solution are shown to increase up to 5.6 × 10-3 cm s-1 upon N2 addition to DGNP synthesis. For the impedimetric detection of avidin, biotin molecules are covalently bound as avidin specific recognition elements on (3-aminopropyl)triethoxysilane-functionalized DGNP surfaces. Avidin quantification is attained within the 10-1000 μg mL-1 range following a logarithmic dependency. The limits of detection and of quantitation are 1.3 and 6.4 μg mL-1 (19 and 93 nM), respectively, and 2.3 and 13.8 μg mL-1 (33 and 200 nM) when considering the nonspecific response of the sensors.
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Affiliation(s)
| | | | | | - Thiago L Vasconcelos
- Materials Metrology Division , INMETRO , 25250-020 Duque de Caxias , Rio de Janeiro , Brazil
| | - Chung M Fung
- Centre for NanoHealth, College of Engineering , Swansea University , Singleton Campus, Swansea SA2 8PP , U.K
| | - Bráulio S Archanjo
- Materials Metrology Division , INMETRO , 25250-020 Duque de Caxias , Rio de Janeiro , Brazil
| | - Carlos A Achete
- Materials Metrology Division , INMETRO , 25250-020 Duque de Caxias , Rio de Janeiro , Brazil
| | - Sofia R Teixeira
- College of Engineering , Swansea University , Bay Campus, Swansea SA1 8QQ , U.K
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Xu M, Obodo D, Yadavalli VK. The design, fabrication, and applications of flexible biosensing devices. Biosens Bioelectron 2019; 124-125:96-114. [PMID: 30343162 PMCID: PMC6310145 DOI: 10.1016/j.bios.2018.10.019] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/29/2018] [Accepted: 10/09/2018] [Indexed: 12/13/2022]
Abstract
Flexible biosensors form part of a rapidly growing research field that take advantage of a multidisciplinary approach involving materials, fabrication and design strategies to be able to function at biological interfaces that may be soft, intrinsically curvy, irregular, or elastic. Numerous exciting advancements are being proposed and developed each year towards applications in healthcare, fundamental biomedical research, food safety and environmental monitoring. In order to place these developments in perspective, this review is intended to present an overview on field of flexible biosensor development. We endeavor to show how this subset of the broader field of flexible and wearable devices presents unique characteristics inherent in their design. Initially, a discussion on the structure of flexible biosensors is presented to address the critical issues specific to their design. We then summarize the different materials as substrates that can resist mechanical deformation while retaining their function of the bioreceptors and active elements. Several examples of flexible biosensors are presented based on the different environments in which they may be deployed or on the basis of targeted biological analytes. Challenges and future perspectives pertinent to the current and future stages of development are presented. Through these summaries and discussion, this review is expected to provide insights towards a systematic and fundamental understanding for the fabrication and utilization of flexible biosensors, as well as inspire and improve designs for smart and effective devices in the future.
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Affiliation(s)
- Meng Xu
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W Main Street, Richmond, VA 23284, USA
| | - Dora Obodo
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W Main Street, Richmond, VA 23284, USA
| | - Vamsi K Yadavalli
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W Main Street, Richmond, VA 23284, USA.
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Bhardwaj SK, Chauhan R, Yadav P, Ghosh S, Mahapatro AK, Singh J, Basu T. Bi-enzyme functionalized electro-chemically reduced transparent graphene oxide platform for triglyceride detection. Biomater Sci 2019; 7:1598-1606. [DOI: 10.1039/c8bm01406j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recently, increased attention has been drawn to application of graphene and its derivatives for construction of biosensors, since they can be used to rapidly detect the presence of bio-analytes.
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Affiliation(s)
| | | | - Premlata Yadav
- School of Physical Sciences
- Jawaharlal Nehru University
- New Delhi 110067
- India
| | - Subhasis Ghosh
- School of Physical Sciences
- Jawaharlal Nehru University
- New Delhi 110067
- India
| | - Ajit K. Mahapatro
- Department of Physics and Astrophysics
- University of Delhi
- New Delhi 110007
- India
| | - Jay Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Tinku Basu
- Amity Institute of Nanotechnology
- Amity University
- Noida
- India
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Rai R, Ahmed Z, Kumar R, Kumawat RL, Chordiya K, Maruyama T, Ali ME, Bagchi V. Environmentally Benign Metal-Free Reduction of GO Using Molecular Hydrogen: A Mechanistic Insight. ACS OMEGA 2018; 3:15112-15118. [PMID: 31458176 PMCID: PMC6643654 DOI: 10.1021/acsomega.8b00848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 10/23/2018] [Indexed: 06/10/2023]
Abstract
A simple yet effective methodology to obtain high-quality reduced graphene oxide (RGO) using a tetrahydrofuran suspension of GO under hydrogen at moderate pressure has been demonstrated. The extent of reduction as a function of the pressure of hydrogen gas, temperature, and time was studied, where the abstraction of oxygen is achievable with least mutilation of C-sp2 bonds, hence upholding the integrity of the graphene sheet. Herein, the formation of a short-lived species is proposed, which is possibly responsible for such reduction. A detailed theoretical calculation along with in situ UV-visible experiments reveals the existence of a transient solvated electron species in the reaction medium. The hydrogen RGO (HRGO) achieved a C/O atomic ratio of 11.3. The conductivity measurements show that HRGO reached as high as 934 S/m, which indicates a high quality of RGO. The process is hassle-free, environmentally benign, and can be scaled up effortlessly without compromising the quality of the material.
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Affiliation(s)
- Ritu Rai
- Institute
of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab 160062, India
| | - Zubair Ahmed
- Institute
of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab 160062, India
| | - Rajinder Kumar
- Institute
of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab 160062, India
| | - Rameshwar L. Kumawat
- Institute
of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab 160062, India
| | - Kalyani Chordiya
- Institute
of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab 160062, India
| | - Takahiro Maruyama
- Department
of Applied Chemistry, Meijo University, 1-501 Shiogamaguchi, Tempaku, Nagoya 468-8502, Japan
| | - Md. Ehesan Ali
- Institute
of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab 160062, India
| | - Vivek Bagchi
- Institute
of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab 160062, India
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Kim T, Cho M, Yu KJ. Flexible and Stretchable Bio-Integrated Electronics Based on Carbon Nanotube and Graphene. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1163. [PMID: 29986539 PMCID: PMC6073353 DOI: 10.3390/ma11071163] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 06/30/2018] [Accepted: 07/06/2018] [Indexed: 11/23/2022]
Abstract
Scientific and engineering progress associated with increased interest in healthcare monitoring, therapy, and human-machine interfaces has rapidly accelerated the development of bio-integrated multifunctional devices. Recently, compensation for the cons of existing materials on electronics for health care systems has been provided by carbon-based nanomaterials. Due to their excellent mechanical and electrical properties, these materials provide benefits such as improved flexibility and stretchability for conformal integration with the soft, curvilinear surfaces of human tissues or organs, while maintaining their own unique functions. This review summarizes the most recent advanced biomedical devices and technologies based on two most popular carbon based materials, carbon nanotubes (CNTs) and graphene. In the beginning, we discuss the biocompatibility of CNTs and graphene by examining their cytotoxicity and/or detrimental effects on the human body for application to bioelectronics. Then, we scrutinize the various types of flexible and/or stretchable substrates that are integrated with CNTs and graphene for the construction of high-quality active electrode arrays and sensors. The convergence of these carbon-based materials and bioelectronics ensures scalability and cooperativity in various fields. Finally, future works with challenges are presented in bio-integrated electronic applications with these carbon-based materials.
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Affiliation(s)
- Taemin Kim
- School of Electrical Engineering, Yonsei University, Seoul 03722, Korea.
| | - Myeongki Cho
- School of Electrical Engineering, Yonsei University, Seoul 03722, Korea.
| | - Ki Jun Yu
- School of Electrical Engineering, Yonsei University, Seoul 03722, Korea.
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π-π nanoassembly of water-soluble metalloporphyrin of ZnTCPP on RGO/AuNPs/CS nanocomposites for photoelectrochemical sensing of hydroquinone. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Jilani A, Othman MHD, Ansari MO, Oves M, Alshahrie A, Khan IU, Sajith V. A simple route to layer-by-layer assembled few layered graphene oxide nanosheets: Optical, dielectric and antibacterial aspects. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.01.042] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Kondrashov VA, Struchkov NS, Rozanov RY, Nevolin VK, Kopylova DS, Nasibulin AG. Graphene oxide reduction by solid-state laser irradiation for bolometric applications. NANOTECHNOLOGY 2018; 29:035301. [PMID: 29182523 DOI: 10.1088/1361-6528/aa9de1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We present a method for reduced graphene oxide (GO) patterning on the surface of GO film by a 445 nm solid-state laser with the adjustable fluence from 0.2-20 kJ cm-2. We demonstrate that the optimal argon concentration in air to obtain good quality reduced GO films is 90%. Varying the laser irradiation energy density allows controlling the resistance and I G /I D and I G /I 2D ratios of Raman peak intensities. As a result, we demonstrate the possibility of forming of conductive patterns with a sheet resistance of 189 Ohm/□ and ∼1 μm film thickness by a local reduction of the GO. The fabricated structures reveal excellent bolometric response with a high speed and sensitivity to the radiation in the visible wavelength region.
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36
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Nguyen DD, Hsieh PY, Tsai MT, Lee CY, Tai NH, To BD, Vu DT, Hsu CC. Hollow Few-Layer Graphene-Based Structures from Parafilm Waste for Flexible Transparent Supercapacitors and Oil Spill Cleanup. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40645-40654. [PMID: 29099171 DOI: 10.1021/acsami.7b12229] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report a versatile strategy to exploit parafilm waste as a carbon precursor for fabrication of freestanding, hollow few-layer graphene fiber mesh (HFGM) structures without use of any gaseous carriers/promoters via an annealing route. The freestanding HFGMs possess good mechanical flexibility, tailorable transparency, and high electrical conductivity, consequently qualifying them as promising electrochemical electrodes. Because of the hollow spaces, electrolyte ions can easily access into and contact with interior surfaces of the graphene fibers, accordingly increasing electrode/electrolyte interfacial area. As expected, solid-state supercapacitors based on the HFGMs exhibit a considerable enhancement in specific capacitance (20-30 fold) as compared to those employing chemical vapor deposition compact graphene films. Moreover, the parafilm waste is found to be beneficial for one-step fabrication of nanocarbon/few-layer graphene composite meshes with superior electrochemical performance, outstanding superhydrophobic property, good self-cleaning ability, and great promise for oil spill cleanup.
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Affiliation(s)
- Duc Dung Nguyen
- Department of Materials Science & Engineering, National Tsing-Hua University , Hsinchu 30013, Taiwan
| | - Ping-Yen Hsieh
- Department of Materials Science & Engineering, National Tsing-Hua University , Hsinchu 30013, Taiwan
| | - Meng-Ting Tsai
- Department of Materials Science & Engineering, National Tsing-Hua University , Hsinchu 30013, Taiwan
| | - Chi-Young Lee
- Department of Materials Science & Engineering, National Tsing-Hua University , Hsinchu 30013, Taiwan
| | - Nyan-Hwa Tai
- Department of Materials Science & Engineering, National Tsing-Hua University , Hsinchu 30013, Taiwan
| | - Bao Dong To
- Department of Physics, National Chung Cheng University , Chiayi 621, Taiwan
| | - Duc Tu Vu
- Department of Physics, National Chung Cheng University , Chiayi 621, Taiwan
| | - Chia Chen Hsu
- Department of Physics, National Chung Cheng University , Chiayi 621, Taiwan
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Deshmukh K, Sankaran S, Basheer Ahamed M, Khadheer Pasha SK, Sadasivuni KK, Ponnamma D, Al-Ali Almaadeed M, Chidambaram K. Studies on the Electrical Properties of Graphene Oxide-Reinforced Poly (4-Styrene Sulfonic Acid) and Polyvinyl Alcohol Blend Composites. INTERNATIONAL JOURNAL OF NANOSCIENCE 2017. [DOI: 10.1142/s0219581x17600055] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In the present study, graphene oxide (GO)-reinforced poly (4-styrenesulfonic acid) (PSSA)/polyvinyl alcohol (PVA) blend composite films were prepared using colloidal blending technique at various concentrations of GO (0–3[Formula: see text]wt.%). The morphological investigations of the prepared composites were carried out using polarized optical microscopy and scanning electron microscopy. The electrical properties of composites were evaluated using an impedance analyzer in the frequency range 50[Formula: see text]Hz to 20[Formula: see text]MHz and temperature in the range 40–150[Formula: see text]C. Morphological studies infer that GO was homogeneously dispersed in the PSSA/PVA blend matrix. Investigations of electrical property indicate that the incorporation of GO into PSSA/PVA blend matrix resulted in the enhancement of the impedance ([Formula: see text] and the quality factor ([Formula: see text]-factor) values. A maximum impedance of about 4.32[Formula: see text][Formula: see text][Formula: see text]10[Formula: see text] was observed at 50[Formula: see text]Hz and 90[Formula: see text]C for PSSA/PVA/GO composites with 3[Formula: see text]wt.% GO loading. The [Formula: see text]-factor also increased from 8.37 for PSSA/PVA blend to 59.8 for PSSA/PVA/GO composites with 3[Formula: see text]wt.% GO loading. These results indicate that PSSA/PVA/GO composites can be used for high-[Formula: see text] capacitor applications.
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Affiliation(s)
- Kalim Deshmukh
- Department of Physics, B. S. Abdur Rahman University, Chennai 600048, Tamil Nadu, India
| | - Sowmya Sankaran
- Department of Physics, B. S. Abdur Rahman University, Chennai 600048, Tamil Nadu, India
| | - M. Basheer Ahamed
- Department of Physics, B. S. Abdur Rahman University, Chennai 600048, Tamil Nadu, India
| | - S. K. Khadheer Pasha
- Department of Physics, School of Advanced Sciences, VIT University, Vellore 632014, Tamil Nadu, India
| | - Kishor Kumar Sadasivuni
- Mechanical and Industrial Engineering Department, Qatar University, P. O. Box 2713, Doha, Qatar
| | | | | | - K. Chidambaram
- Department of Physics, School of Advanced Sciences, VIT University, Vellore 632014, Tamil Nadu, India
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Zhou J, Li H, Tian R, Dugnani R, Lu H, Chen Y, Guo Y, Duan H, Liu H. Fabricating fast triggered electro-active shape memory graphite/silver nanowires/epoxy resin composite from polymer template. Sci Rep 2017; 7:5535. [PMID: 28717165 PMCID: PMC5514128 DOI: 10.1038/s41598-017-05968-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 06/06/2017] [Indexed: 11/21/2022] Open
Abstract
In recent years shape-memory polymers have been under intense investigation due to their unique mechanical, thermal, and electrical properties that could potentially make them extremely valuable in numerous engineering applications. In this manuscript, we report a polymer-template-assisted assembly manufacturing strategy used to fabricate graphite/silver nanowires/epoxy resin (PGSE) composite. In the proposed method, the porous polymer foams work as the skeleton by forming three-dimensional graphite structure, whereas the silver nanowires act as the continuous conductive network. Preliminary testing on hybrid foams after vacuum infusion showed high electrical conductivity and excellent thermal stability. Furthermore, the composites were found to recover their original shape within 60 seconds from the application of a 0.8 V mm−1 electric field. Notably, the reported shape-memory polymer composites are manufactured with readily-available raw materials, they are fast to manufacture, and are shape-controlled.
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Affiliation(s)
- Jie Zhou
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Hua Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China. .,Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai, China.
| | - Ran Tian
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Roberto Dugnani
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai, China
| | - Huiyuan Lu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Yujie Chen
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China.
| | - Yiping Guo
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Huanan Duan
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Hezhou Liu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China.,Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai, China
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Kim KS, Ahn CH, Kang WJ, Cho SW, Jung SH, Yoon DH, Cho HK. An All Oxide-Based Imperceptible Thin-Film Transistor with Humidity Sensing Properties. MATERIALS 2017; 10:ma10050530. [PMID: 28772888 PMCID: PMC5458990 DOI: 10.3390/ma10050530] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 05/07/2017] [Accepted: 05/10/2017] [Indexed: 11/29/2022]
Abstract
We have examined the effects of oxygen content and thickness in sputtered InSnO (ITO) electrodes, especially for the application of imperceptible amorphous-InGaZnO (a-IGZO) thin-film transistors (TFTs) in humidity sensors. The imperceptible a-IGZO TFT with 50-nm ITO electrodes deposited at Ar:O2 = 29:0.3 exhibited good electrical performances with Vth of −0.23 V, SS of 0.34 V/dec, µFE of 7.86 cm2/V∙s, on/off ratio of 8.8 × 107, and has no degradation for bending stress up to a 3.5-mm curvature. The imperceptible oxide TFT sensors showed the highest sensitivity for the low and wide gate bias of −1~2 V under a wide range of relative humidity (40–90%) at drain voltage 1 V, resulting in low power consumption by the sensors. Exposure to water vapor led to a negative shift in the threshold voltage (or current enhancement), and an increase in relative humidity induced continuous threshold voltage shift. In particular, compared to conventional resistor-type sensors, the imperceptible oxide TFT sensors exhibited extremely high sensitivity from a current amplification of >103.
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Affiliation(s)
- Kyung Su Kim
- Department of Advanced Materials Science and Engineering, SungKyunKwan University, 2006 Seobu-ro, Jangan-gu, Gyeonggi-do, Suwon 16419, Korea.
| | - Cheol Hyoun Ahn
- Department of Advanced Materials Science and Engineering, SungKyunKwan University, 2006 Seobu-ro, Jangan-gu, Gyeonggi-do, Suwon 16419, Korea.
| | - Won Jun Kang
- Department of Advanced Materials Science and Engineering, SungKyunKwan University, 2006 Seobu-ro, Jangan-gu, Gyeonggi-do, Suwon 16419, Korea.
| | - Sung Woon Cho
- Department of Advanced Materials Science and Engineering, SungKyunKwan University, 2006 Seobu-ro, Jangan-gu, Gyeonggi-do, Suwon 16419, Korea.
| | - Sung Hyeon Jung
- Department of Advanced Materials Science and Engineering, SungKyunKwan University, 2006 Seobu-ro, Jangan-gu, Gyeonggi-do, Suwon 16419, Korea.
| | - Dae Ho Yoon
- Department of Advanced Materials Science and Engineering, SungKyunKwan University, 2006 Seobu-ro, Jangan-gu, Gyeonggi-do, Suwon 16419, Korea.
| | - Hyung Koun Cho
- Department of Advanced Materials Science and Engineering, SungKyunKwan University, 2006 Seobu-ro, Jangan-gu, Gyeonggi-do, Suwon 16419, Korea.
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Chakraborty S, Resmi AN, Devi PR, Jinesh KB. P-channel thin film transistors using reduced graphene oxide. NANOTECHNOLOGY 2017; 28:155201. [PMID: 28230536 DOI: 10.1088/1361-6528/aa628d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chemically reduced graphene oxide (rGO) samples with various degrees of reduction were prepared using hydrazine hydrate as the reducing agent. Scanning tunnelling microscope imaging shows that rGO contains rows of randomly distributed patches of epoxy groups. The local density of states of the rGO samples were mapped with scanning tunnelling spectroscopy, which shows that the bandgap in rGO originates from the epoxide regions itself. The Fermi level of the epoxide regions is shifted towards the valence band, making rGO locally p-type and a range of bandgaps from 0-2.2 eV was observed in these regions. Thin film transistors were fabricated using rGO as the channel layer. The devices show excellent output characteristics with clear saturation and gate dependence. The transfer characteristics show that rGO behaves as a p-type semiconductor; the devices exhibit an on/off ratio of 104, with a low-bias hole mobility of 3.9 cm2 V-1 s-1.
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Affiliation(s)
- S Chakraborty
- Department of Physics, Indian Institute of Space-Science and Technology (IIST), Valiyamala, Thiruvananthapuram, Kerala 695547, India
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Tan C, Cao X, Wu XJ, He Q, Yang J, Zhang X, Chen J, Zhao W, Han S, Nam GH, Sindoro M, Zhang H. Recent Advances in Ultrathin Two-Dimensional Nanomaterials. Chem Rev 2017; 117:6225-6331. [PMID: 28306244 DOI: 10.1021/acs.chemrev.6b00558] [Citation(s) in RCA: 1941] [Impact Index Per Article: 277.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Since the discovery of mechanically exfoliated graphene in 2004, research on ultrathin two-dimensional (2D) nanomaterials has grown exponentially in the fields of condensed matter physics, material science, chemistry, and nanotechnology. Highlighting their compelling physical, chemical, electronic, and optical properties, as well as their various potential applications, in this Review, we summarize the state-of-art progress on the ultrathin 2D nanomaterials with a particular emphasis on their recent advances. First, we introduce the unique advances on ultrathin 2D nanomaterials, followed by the description of their composition and crystal structures. The assortments of their synthetic methods are then summarized, including insights on their advantages and limitations, alongside some recommendations on suitable characterization techniques. We also discuss in detail the utilization of these ultrathin 2D nanomaterials for wide ranges of potential applications among the electronics/optoelectronics, electrocatalysis, batteries, supercapacitors, solar cells, photocatalysis, and sensing platforms. Finally, the challenges and outlooks in this promising field are featured on the basis of its current development.
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Affiliation(s)
- Chaoliang Tan
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Xiehong Cao
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore.,College of Materials Science and Engineering, Zhejiang University of Technology , 18 Chaowang Road, Hangzhou 310014, China
| | - Xue-Jun Wu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Qiyuan He
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Jian Yang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Xiao Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Junze Chen
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Wei Zhao
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Shikui Han
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Gwang-Hyeon Nam
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Melinda Sindoro
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Hua Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
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42
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Yu X, Zhang W, Zhang P, Su Z. Fabrication technologies and sensing applications of graphene-based composite films: Advances and challenges. Biosens Bioelectron 2017; 89:72-84. [DOI: 10.1016/j.bios.2016.01.081] [Citation(s) in RCA: 173] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/01/2016] [Accepted: 01/28/2016] [Indexed: 01/25/2023]
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43
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Mao S, Chang J, Pu H, Lu G, He Q, Zhang H, Chen J. Two-dimensional nanomaterial-based field-effect transistors for chemical and biological sensing. Chem Soc Rev 2017; 46:6872-6904. [DOI: 10.1039/c6cs00827e] [Citation(s) in RCA: 235] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review highlights the recent progress in graphene-, 2D transition metal dichalcogenide-, and 2D black phosphorus-based FET sensors for detecting gases, biomolecules, and water contaminants.
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Affiliation(s)
- Shun Mao
- State Key Laboratory of Pollution Control and Resource Reuse
- College of Environmental Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Jingbo Chang
- Department of Mechanical Engineering
- University of Wisconsin–Milwaukee
- Milwaukee
- USA
| | - Haihui Pu
- Department of Mechanical Engineering
- University of Wisconsin–Milwaukee
- Milwaukee
- USA
| | | | - Qiyuan He
- Center for Programmable Materials
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Hua Zhang
- Center for Programmable Materials
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Junhong Chen
- Department of Mechanical Engineering
- University of Wisconsin–Milwaukee
- Milwaukee
- USA
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Benjamin M, Manoj D, Thenmozhi K, Bhagat PR, Saravanakumar D, Senthilkumar S. A bioinspired ionic liquid tagged cobalt-salophen complex for nonenzymatic detection of glucose. Biosens Bioelectron 2016; 91:380-387. [PMID: 28061420 DOI: 10.1016/j.bios.2016.12.064] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/21/2016] [Accepted: 12/29/2016] [Indexed: 01/04/2023]
Abstract
The development of efficient and cost effective nonenzymatic biosensors with remarkable sensitivity, selectivity and stability for the detection of biomolecules, especially glucose is one of the major challenges in materials- and electrochemistry. Herein, we report the design and preparation of nonenzymatic biosensor based on an ionic liquid tagged cobalt-salophen metal complex (Co-salophen-IL) immobilized on electrochemically reduced graphene oxide (ERGO) for the detection of glucose via an electrochemical oxidation. The bioinspired Co-salophen-IL complex has been synthesized and immobilized on ERGO, which was previously deposited on a screen printed carbon electrode (SPE) to form the Co-salophen-IL/ERGO/SPE nonenzymatic biosensor. The electrochemical behaviour of this modified electrode was studied using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Notably, the Co-salophen-IL/ERGO/SPE biosensor exhibited excellent electrocatalytic activity towards glucose oxidation in 0.1M NaOH, based on which an amperometric sensor has been developed. The modified electrode has shown prominent performance towards glucose detection over a wide linear range from 0.2µM to 1.8mM with a detection limit and sensitivity of 0.79µM and 62µAmM-1 respectively. The detection was carried out at 0.40V and such a less working potential excludes the interference from the coexisting oxidizable analytes. The role of Co-salophen, IL and ERGO in the electrocatalytic activity has been systematically investigated. Furthermore, the biosensor demonstrated high stability with good reproducibility.
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Affiliation(s)
- Michael Benjamin
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Devaraj Manoj
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Kathavarayan Thenmozhi
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Pundlik Rambhau Bhagat
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Duraisamy Saravanakumar
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India.
| | - Sellappan Senthilkumar
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India.
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Tan Z, Wu Y, Hong H, Yin J, Zhang J, Lin L, Wang M, Sun X, Sun L, Huang Y, Liu K, Liu Z, Peng H. Two-Dimensional (C 4H 9NH 3) 2PbBr 4 Perovskite Crystals for High-Performance Photodetector. J Am Chem Soc 2016; 138:16612-16615. [PMID: 27966926 DOI: 10.1021/jacs.6b11683] [Citation(s) in RCA: 160] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Two-dimensional (2D) layered hybrid perovskites of (RNH3)2PbX4 (R is an alkyl and X is a halide) have been recently synthesized and exhibited rich optical properties including fluorescence and exciton effects. However, few studies on transport and optoelectronic measurements of individual 2D perovskite crystals have been reported, presumably owing to the instability issue during electronic device fabrications. Here we report the first photodetector based on individual 2D (C4H9NH3)2PbBr4 perovskite crystals, built with the protection and top contact of graphene film. Both a high responsivity (∼2100 A/W) and extremely low dark current (∼10-10 A) are achieved with a design of interdigital graphene electrodes. Our study paves the way to build high-performance optoelectronic devices based on the emerging 2D single-crystal perovskite materials.
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Affiliation(s)
- Zhenjun Tan
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P.R. China.,Academy for Advanced Interdisciplinary Studies, Peking University , Beijing 100871, P. R. China
| | - Yue Wu
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P.R. China
| | - Hao Hong
- State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University , Beijing 100871, P. R. China
| | - Jianbo Yin
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P.R. China
| | - Jincan Zhang
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P.R. China.,Academy for Advanced Interdisciplinary Studies, Peking University , Beijing 100871, P. R. China
| | - Li Lin
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P.R. China
| | - Mingzhan Wang
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P.R. China
| | - Xiao Sun
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P.R. China.,Academy for Advanced Interdisciplinary Studies, Peking University , Beijing 100871, P. R. China
| | - Luzhao Sun
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P.R. China.,Academy for Advanced Interdisciplinary Studies, Peking University , Beijing 100871, P. R. China
| | - Yucheng Huang
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P.R. China
| | - Kaihui Liu
- State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University , Beijing 100871, P. R. China
| | - Zhongfan Liu
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P.R. China
| | - Hailin Peng
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P.R. China
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46
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Zou Y, Walton AS, Kinloch IA, Dryfe RAW. Investigation of the Differential Capacitance of Highly Ordered Pyrolytic Graphite as a Model Material of Graphene. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:11448-11455. [PMID: 27760294 DOI: 10.1021/acs.langmuir.6b02910] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A study of the differences among the capacitances of freshly exfoliated highly ordered pyrolytic graphite (HOPG, sample denoted FEG), HOPG aged in air (denoted AAG), and HOPG aged in an inert atmosphere (hereafter IAG) is presented in this work. The FEG is found to be more hydrophilic than AAG and IAG because the aqueous electrolyte contact angle (CA) increases from 61.7° to 72.5° and 81.8° after aging in Ar and air, respectively. Electrochemical impedance spectroscopy shows the FEG has an intrinsic capacitance (6.0 μF cm-2 at the potential of minimum capacitance) higher than those of AAG (4.3 μF cm-2) and IAG (4.7 μF cm-2). The observed changes in the electrochemical response are correlated with spectroscopic characterization (Raman spectroscopy and X-ray photoelectron spectroscopy), which show that the surface of HOPG was doped or contaminated after exposure to air. Taken together, these changes upon atmospheric exposure are attributed to oxygen molecule, moisture, and airborne organic contaminations: high-vacuum annealing was applied for the removal of the adsorbed contaminants. It was found that annealing the aged sample at 500 °C leads to partial removal of the contaminants, as gauged by the recovery of the measured capacitance. To the best of our knowledge, this is first study of the effect of the airborne contaminants on the capacitance of carbon-based materials.
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Affiliation(s)
- Yuqin Zou
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, U.K
| | - Alex S Walton
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, U.K
- Photon Science Institute, University of Manchester , Oxford Road, Manchester M13 9PL, U.K
| | - Ian A Kinloch
- School of Materials, University of Manchester , Oxford Road, Manchester M13 9PL, U.K
| | - Robert A W Dryfe
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, U.K
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47
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Graphene oxide reinforced polyvinyl alcohol/polyethylene glycol blend composites as high-performance dielectric material. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1056-8] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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48
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Bandodkar AJ, Jeerapan I, Wang J. Wearable Chemical Sensors: Present Challenges and Future Prospects. ACS Sens 2016. [DOI: 10.1021/acssensors.6b00250] [Citation(s) in RCA: 496] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Amay J. Bandodkar
- Department
of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Itthipon Jeerapan
- Department
of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Joseph Wang
- Department
of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
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49
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Baptista-Pires L, Mayorga-Martínez CC, Medina-Sánchez M, Montón H, Merkoçi A. Water Activated Graphene Oxide Transfer Using Wax Printed Membranes for Fast Patterning of a Touch Sensitive Device. ACS NANO 2016; 10:853-860. [PMID: 26691931 DOI: 10.1021/acsnano.5b05963] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We demonstrate a graphene oxide printing technology using wax printed membranes for the fast patterning and water activation transfer using pressure based mechanisms. The wax printed membranes have 50 μm resolution, longtime stability and infinite shaping capability. The use of these membranes complemented with the vacuum filtration of graphene oxide provides the control over the thickness. Our demonstration provides a solvent free methodology for printing graphene oxide devices in all shapes and all substrates using the roll-to-roll automatized mechanism present in the wax printing machine. Graphene oxide was transferred over a wide variety of substrates as textile or PET in between others. Finally, we developed a touch switch sensing device integrated in a LED electronic circuit.
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Affiliation(s)
- Luis Baptista-Pires
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology , Campus UAB, Bellaterra, Barcelona 08193, Spain
| | - Carmen C Mayorga-Martínez
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology , Campus UAB, Bellaterra, Barcelona 08193, Spain
| | - Mariana Medina-Sánchez
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology , Campus UAB, Bellaterra, Barcelona 08193, Spain
| | - Helena Montón
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology , Campus UAB, Bellaterra, Barcelona 08193, Spain
| | - Arben Merkoçi
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology , Campus UAB, Bellaterra, Barcelona 08193, Spain
- ICREA , Barcelona 08010, Spain
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50
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Abstract
Nano-bioelectronics represents a rapidly expanding interdisciplinary field that combines nanomaterials with biology and electronics and, in so doing, offers the potential to overcome existing challenges in bioelectronics. In particular, shrinking electronic transducer dimensions to the nanoscale and making their properties appear more biological can yield significant improvements in the sensitivity and biocompatibility and thereby open up opportunities in fundamental biology and healthcare. This review emphasizes recent advances in nano-bioelectronics enabled with semiconductor nanostructures, including silicon nanowires, carbon nanotubes, and graphene. First, the synthesis and electrical properties of these nanomaterials are discussed in the context of bioelectronics. Second, affinity-based nano-bioelectronic sensors for highly sensitive analysis of biomolecules are reviewed. In these studies, semiconductor nanostructures as transistor-based biosensors are discussed from fundamental device behavior through sensing applications and future challenges. Third, the complex interface between nanoelectronics and living biological systems, from single cells to live animals, is reviewed. This discussion focuses on representative advances in electrophysiology enabled using semiconductor nanostructures and their nanoelectronic devices for cellular measurements through emerging work where arrays of nanoelectronic devices are incorporated within three-dimensional cell networks that define synthetic and natural tissues. Last, some challenges and exciting future opportunities are discussed.
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Affiliation(s)
- Anqi Zhang
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts, 02138, United States
| | - Charles M. Lieber
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts, 02138, United States
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, 02138, United States
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