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Chen Y, Wang H, Zhou J, Lin D, Zhang L, Xing Z, Zhang Q, Xia L. Sensitive SERS assay for L-cysteine based on functionalized silver nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 318:124487. [PMID: 38805989 DOI: 10.1016/j.saa.2024.124487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/26/2024] [Accepted: 05/19/2024] [Indexed: 05/30/2024]
Abstract
L-cysteine, an indispensable amino acid present in natural proteins, plays pivotal roles in various biological processes. Consequently, precise and selective monitoring of its concentrations is imperative. Herein, we propose a Surface-enhanced Raman Scattering (SERS) sensor for detecting L-cysteine based on the anti-aggregation of 4-mercaptobenzoic acid (4-MBA) and histidine (His) functionalized silver nanoparticles (Ag NPs). The presence of Hg2+ ions can induce the aggregation of Ag NPs@His@4-MBA due to the unique nanostructures of Ag NPs@His@4-MBA, resulting in a robust SERS intensity of 4-MBA. However, in the presence of L-cysteine, the stronger affinity between L-cysteine and Hg2+ reduces the concentration of free Hg2+, causing the dispersion of the aggregated functionalized Ag NPs and the reduction of the SERS signal intensity of 4-MBA. The developed SERS platform demonstrates excellent performance with a low detection limit of 5 nM (S/N = 3) and linear detection capabilities within the range of 0.01-100 μM for L-cysteine. Additionally, the method was successfully employed for the determination of L-cysteine in spiked serum samples, yielding recoveries ranging from 95.0 % to 108.1 % with relative standard deviations of less than 3.3 %. This study not only presents a novel approach for fabricating highly sensitive and specific SERS biosensors for biomolecule detection but also offers a significant strategy for the development and construction of SERS substrates using anti-aggregation design.
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Affiliation(s)
- Yaxian Chen
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Huiting Wang
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Jie Zhou
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Dongxue Lin
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Ling Zhang
- College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China
| | - Zhiqiang Xing
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Qian Zhang
- College of Chemistry, Liaoning University, Shenyang 110036, China.
| | - Lixin Xia
- College of Chemistry, Liaoning University, Shenyang 110036, China; Yingkou Institute of Technology, Yingkou 115014, China.
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2
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Lv Y, Lu S, Xu W, Xin Y, Wang X, Wang S, Yu J. Application of dandelion-like Sm 2O 3/Co 3O 4/rGO in high performance supercapacitors. RSC Adv 2024; 14:2088-2101. [PMID: 38196908 PMCID: PMC10775768 DOI: 10.1039/d3ra06352f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 01/02/2024] [Indexed: 01/11/2024] Open
Abstract
Novel 2D material-based supercapacitors are promising candidates for energy applications due to their distinctive physical, chemical, and electrochemical properties. In this study, a dandelion-like structure material comprised of Sm2O3, Co3O4, and 2D reduced graphene oxide (rGO) on nickel foam (NF) was synthesised using a hydrothermal method followed by subsequent annealing treatment. This dandelion composite grows further through the tremella-like structure of Sm2O3 and Co3O4, which facilitates the diffusion of ions and prevents structural collapse during charging and discharging. A substantial number of active sites are generated during redox reactions by the unique surface morphology of the Sm2O3/Co3O4/rGO/NF composite (SCGN). The maximum specific capacity the SCGN material achieves is 3448 F g-1 for 1 A g-1 in a 6 mol L-1 KOH solution. Benefiting from its morphological structure, the prepared composite (SCGN) exhibits a high cyclability of 93.2% over 3000 charge-discharge cycles at 10 A g-1 and a coulombic efficiency of 97.4%. Additionally, the assembled SCGN//SCGN symmetric supercapacitors deliver a high energy density of 64 W h kg-1 with a power density of 300 W kg-1, which increases to an outstanding power density of 12 000 W kg-1 at 28.7 W h kg-1 and long cycle stability (80.9% capacitance retention after 30 000 cycles). These results suggest that the manufactured SCGN electrodes could be viable active electrode materials for electrochemical supercapacitors.
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Affiliation(s)
- Yanling Lv
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 China +86 10 68912631 +86 10 68912667
| | - Shixiang Lu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 China +86 10 68912631 +86 10 68912667
| | - Wenguo Xu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 China +86 10 68912631 +86 10 68912667
| | - Yulin Xin
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 China +86 10 68912631 +86 10 68912667
| | - Xiaoyan Wang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 China +86 10 68912631 +86 10 68912667
| | - Shasha Wang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 China +86 10 68912631 +86 10 68912667
| | - Jiaan Yu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 China +86 10 68912631 +86 10 68912667
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3
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Uçar A, Aydoğdu Tığ G, Er E. Recent advances in two dimensional nanomaterial-based electrochemical (bio)sensing platforms for trace-level detection of amino acids and pharmaceuticals. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2023.117027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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4
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Imanzadeh H, Sefid-Sefidehkhan Y, Afshary H, Afruz A, Amiri M. Nanomaterial-based electrochemical sensors for detection of amino acids. J Pharm Biomed Anal 2023; 230:115390. [PMID: 37079932 DOI: 10.1016/j.jpba.2023.115390] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/24/2023] [Accepted: 04/08/2023] [Indexed: 04/22/2023]
Abstract
Amino acids are the building blocks of proteins and muscle tissue. They also play a significant role in physiological processes related to energy, recovery, mood, muscle and brain function, fat burning and stimulating growth hormone or insulin secretion. Accurate determination of amino acids in biological fluids is necessary because any changes in their normal ranges in the body warn diseases like kidney disease, liver disease, type 2 diabetes and cancer. To date, many methods such as liquid chromatography, fluorescence mass spectrometry, etc. have been used for the determination of amino acids. Compared with the above techniques, electrochemical systems using modified electrodes offer a rapid, accurate, cheap, real-time analytical path through simple operations with high selectivity and sensitivity. Nanomaterials have found many interests to create smart electrochemical sensors in different application fields e.g. biomedical, environmental, and food analysis because of their exceptional properties. This review summarizes recent advances in the development of nanomaterial-based electrochemical sensors in 2017-2022 for the detection of amino acids in various matrices such as serum, urine, blood and pharmaceuticals.
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Affiliation(s)
- Hamideh Imanzadeh
- Department of Chemistry, University of Mohaghegh Ardabili, Ardabil, Iran
| | | | - Hosein Afshary
- Department of Chemistry, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Ali Afruz
- Department of Chemistry, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Mandana Amiri
- Department of Chemistry, University of Mohaghegh Ardabili, Ardabil, Iran.
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5
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Muthukumaran MK, Govindaraj M, Raja BK, J AS. In situ synthesis of polythiophene encapsulated 2D hexagonal boron nitride nanocomposite based electrochemical transducer for detection of 5-fluorouracil with high selectivity. RSC Adv 2023; 13:2780-2794. [PMID: 36756436 PMCID: PMC9850362 DOI: 10.1039/d2ra07147a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/05/2023] [Indexed: 01/20/2023] Open
Abstract
It is difficult for the scientific community to develop a nonenzymatic sensing platform for extremely sensitive and selective detection of specific biomolecules, antibiotics, food adulterants, heavy metals, etc. One of the most significant chemotherapy drugs, 5-fluorouracil (5-Fu), which is used to treat solid malignancies, has a fluorine atom in the fifth position of the uracil molecule. Recognizing the secure and effective dosing of drugs for chemotherapy continues to be a critical concern in cancer disease management. The maintenance of the optimal 5-Fu concentration is dependent on the presence of 5-Fu in biofluids. Herein we reported a conducting polymer encapsulated 2D material, PTh/h-BN for the efficient electrochemical detection of anticancer drug 5-Fu. Furthermore, the synthesized PTh/h-BN nanocomposite was confirmed by the High-Resolution Transmission Electron Microscope (HR-TEM), High-Resolution Scanning Electron Microscope (HR-SEM), X-ray diffraction (XRD), and Fourier-Transform Infrared Spectroscopy (FT-IR). The electrical resistance of PTh/h-BN modified GCE and its sensing performance towards 5-Fu were tested using Electrochemical Impedance Spectroscopy (EIS) and Cyclic Voltammetry (CV) studies respectively. The analytical performance of our proposed catalyst was tested using Differential Pulse Voltammetry (DPV), and the amperometry (i-t curve) method. From the results, our proposed PTh/h-BN nanocomposite-modified GCE shows enhanced sensing performance due to higher redox peak currents, large active surface area, and high electrical conductivity. Moreover, the nanohybrid shows enhanced sensing performances with quick response time, wide linear range, the lowest limit of detection, high sensitivity, and high selectivity in the presence of various interferents. Finally, the practical applicability of the proposed sensor was tested with real-world samples with very good recovery percentages.
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Affiliation(s)
- Magesh Kumar Muthukumaran
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur 603203 Tamil Nadu India
| | - Muthukumar Govindaraj
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur 603203 Tamil Nadu India
| | - Bharathi Kannan Raja
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur 603203 Tamil Nadu India
| | - Arockia Selvi J
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur 603203 Tamil Nadu India
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6
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Itterheimová P, Dosedělová V, Kubáň P. Use of metal nanoparticles for preconcentration and analysis of biological thiols. Electrophoresis 2023; 44:135-157. [PMID: 35892259 DOI: 10.1002/elps.202200142] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/11/2022] [Accepted: 07/19/2022] [Indexed: 02/01/2023]
Abstract
Metal nanoparticles (NPs) exhibit several unique physicochemical properties, including redox activity, surface plasmon resonance, ability to quench fluorescence, biocompatibility, or a high surface-to-volume ratio. They are being increasingly used in analysis and preconcentration of thiol containing compounds, because they are able to spontaneously form a stable Au/Ag/Cu-S dative bond. They thus find wide application in environmental and particularly in medical science, especially in the analysis of biological thiols, the endogenous compounds that play a significant role in many biological systems. In this review article, we provide an overview of various types of NPs that have been applied in analysis and preconcentration of biological thiols, mainly in human biological fluids. We first discuss shortly the types of NPs and their synthesis, properties, and their ability to interact with thiol compounds. Then we outline the sample preconcentration and analysis methods that were used for this purpose with special emphasis on optical, electrochemical, and separation techniques.
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Affiliation(s)
- Petra Itterheimová
- Department of Bioanalytical Instrumentation, Institute of Analytical Chemistry, Czech Academy of Sciences, Brno, Czech Republic.,CEITEC - Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Věra Dosedělová
- Department of Bioanalytical Instrumentation, Institute of Analytical Chemistry, Czech Academy of Sciences, Brno, Czech Republic.,CEITEC - Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Petr Kubáň
- Department of Bioanalytical Instrumentation, Institute of Analytical Chemistry, Czech Academy of Sciences, Brno, Czech Republic
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7
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Zaeifi F, Sedaghati F, Samari F. A new electrochemical sensor based on green synthesized CuO nanostructures modified carbon ionic liquid electrode for electrocatalytic oxidation and monitoring of l-cysteine. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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8
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Effect of copper oxide@boron nitride nanosheet hybrid nanocomposite on tribological properties of paraffin liquid. SN APPLIED SCIENCES 2022. [DOI: 10.1007/s42452-022-05094-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Abstract
Due to the significant friction-reduction and anti-wear properties of nano particle, nano copper oxide (CuO) particle decorating on boron nitride nanosheets (BNNS) nanocomposites are fabricated with polydopamine (PDA) as the linking agent. The structural and morphological characteristics of the CuO@BNNS composite are characterized by scanning electron microscopy (SEM), X-ray diffraction patterns, fourier transform infrared spectroscopy and thermogravimetric analysis. The synergistic effect of CuO and BNNS on extreme pressure of lubrication oil are investigated. A four-ball tribometer is adopted to investigate the tribological behaviors of the as-prepared oil with different additives. Optical microscope and SEM are used to analyze the topography of worn surface. Energy dispersive spectroscopy is adopted to investigate the element distribution on worn surface. The results demonstrate that the CuO@BNNS nanoparticle could effectively improve the friction-reduction and anti-wear properties of the paraffin liquid, compared to paraffin liquid containing modified CuO (f-CuO) or PDA-BNNS respectively. The worn surface of steel ball presents smooth morphology for oil containing CuO@BNNS, contrast to oil containing f-CuO or PDA-BNNS respectively. With the tribo-film formation on the worn surface, the elements distribute uniformly on the worn surface for oil containing CuO@BNNS. Compared to lower load, the effect of load-carrying capacity and easy-shear property of CuO@BNNS outstand under 392 N, which results in the smooth worn surface compared to oil containing other additives.
Article Highlights
CuO@BNNS hybrid nanoparticle was prepared with a simple and mild method.
CuO@BNNS presents superior anti-friction and anti-wear properties due to the synergistic effect of nanoparticle.
The result obtained in the paper promotes the application of h-BN based nanocomposites in tribology.
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9
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Voltammetric Electrochemical Behavior of Carbon Paste Electrode Containing Intrinsic Silver for Determination of Cysteine. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10070240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this paper, the electrochemical behavior of cysteine is described, using carbon paste electrodes (CPEs) modified with ternary silver-copper sulfide containing intrinsic silver at two pH values (pH 3 and 5). Experiments have revealed that presence of cysteine has a large impact on the electrochemical behavior of modified CPEs. Observed phenomena take place in solution, as well as at the surface of the modified CPEs, and can be applied for electroanalytical purposes. Based on the electrochemical behavior observed in the examined system, differential pulse voltammetry (DPV) was selected as an electroanalytical method for determination of cysteine. The effects of the various parameters on the electroanalytical signal, such as the amount of electroactive material, electroanalytical parameters, pH etc., were investigated using differential pulse voltammograms. The results indicated that electrochemical signal characterized with well-defined cathodic peak at 0.055 V vs. Ag/AgCl (3 M) in acetic buffer solution at pH 5 can be used for indirect electrochemical determination of cysteine. The optimization procedure revealed that the most sensitive and stabile electrode was that containing 5% modifier. The DPV response of the electrode, in the presence of cysteine, showed two different linear concentration ranges of 0.1 to 2.5 μM, and 5.6 to 28 μM. The explanation of the origin of two linear ranges is proposed. The lower concentration range was characterized by remarkable sensitivity of the 11.78 μA μM–1, owing to the chosen indirect method of determination. The calculated limit of detection (LOD), as well as limit of quantification (LOQ) were 0.032 and 0.081 μM, respectively. The influence of interfering agents on the electroanalytical response was examined, and low or no interference on the DPVs was observed. The proposed method was validated and applied for the determination of cysteine in pharmaceutical preparations with satisfactory recoveries in the range of 97 to 101.7%.
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10
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Li K, Yang H, Yuan X, Zhang M. A novel and indirect method for L-cysteine detection in traditional Chinese medicines by chemical vapor generation-atomic fluorescence spectrometry. Microchem J 2022. [DOI: 10.1016/j.microc.2021.106891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Moulaee K, Neri G. Electrochemical Amino Acid Sensing: A Review on Challenges and Achievements. BIOSENSORS 2021; 11:502. [PMID: 34940259 PMCID: PMC8699811 DOI: 10.3390/bios11120502] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/18/2021] [Accepted: 11/25/2021] [Indexed: 05/05/2023]
Abstract
The rapid growth of research in electrochemistry in the last decade has resulted in a significant advancement in exploiting electrochemical strategies for assessing biological substances. Among these, amino acids are of utmost interest due to their key role in human health. Indeed, an unbalanced amino acid level is the origin of several metabolic and genetic diseases, which has led to a great need for effective and reliable evaluation methods. This review is an effort to summarize and present both challenges and achievements in electrochemical amino acid sensing from the last decade (from 2010 onwards) to show where limitations and advantages stem from. In this review, we place special emphasis on five well-known electroactive amino acids, namely cysteine, tyrosine, tryptophan, methionine and histidine. The recent research and achievements in this area and significant performance metrics of the proposed electrochemical sensors, including the limit of detection, sensitivity, stability, linear dynamic range(s) and applicability in real sample analysis, are summarized and presented in separate sections. More than 400 recent scientific studies were included in this review to portray a rich set of ideas and exemplify the capabilities of the electrochemical strategies to detect these essential biomolecules at trace and even ultra-trace levels. Finally, we discuss, in the last section, the remaining issues and the opportunities to push the boundaries of our knowledge in amino acid electrochemistry even further.
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Affiliation(s)
- Kaveh Moulaee
- Department of Engineering, University of Messina, C.Da Di Dio, I-98166 Messina, Italy;
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran 16846-13114, Iran
| | - Giovanni Neri
- Department of Engineering, University of Messina, C.Da Di Dio, I-98166 Messina, Italy;
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12
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Qadir A, Le TK, Malik M, Amedome Min-Dianey KA, Saeed I, Yu Y, Choi JR, Pham PV. Representative 2D-material-based nanocomposites and their emerging applications: a review. RSC Adv 2021; 11:23860-23880. [PMID: 35479005 PMCID: PMC9036868 DOI: 10.1039/d1ra03425a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 06/24/2021] [Indexed: 12/16/2022] Open
Abstract
Composites (or complex materials) are formed from two or many constituent materials with novel physical or chemical characteristics when integrated. The individual components can be combined to create a unique composite material through mechanical transfer, physical stacking, exfoliation, derivative chemical mixtures, mixtures of solid solutions, or complex synthesis processes. The development of new composites based on emerging 2D nanomaterials has allowed for outstanding achievements with novel applications that were previously unknown. These new composite materials show massive potential in emerging applications due to their exceptional properties, such as being strong, light, cheap, and highly photodegradable, and their ability to be used for water splitting and energy storage compared to traditional materials. The blend of existing polymers and 2D materials with their nanocomposites has proven to be immediate solutions to energy and food scarcity in the world. Although much literature has been reported in the said context, we tried to provide an understanding about the relationship of their mechanisms and scope for future application in a comprehensive way. In this review, we briefly summarize the basic characteristics, novel physical and chemical behaviors, and new applications in the industry of the emerging 2D-material-based composites. Composites (or complex materials) are formed from two or many constituent materials with novel physical or chemical characteristics when integrated.![]()
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Affiliation(s)
- Akeel Qadir
- Research Center of Smart Sensing Chips, Ningbo Institute of Northwestern Polytechnical University Ningbo 315103 China.,Key Laboratory of Micro/Nano Systems for Aerospace (Ministry of Education), Shaanxi Province Key Laboratory of Micro and Nano Electro-Mechanical Systems, Department of Microsystems Engineering, Northwestern Polytechnical University Xi'an 710072 China
| | - Top Khac Le
- Department of Physics and Energy Harvest Storage Research Center, University of Ulsan Ulsan 44610 South Korea
| | - Muhammad Malik
- Department of Electrical Engineering and Technology, Government College University Faisalabad 38000 Pakistan
| | | | - Imran Saeed
- Institute of Aviation Studies, University of Management and Technology Lahore 54000 Pakistan
| | - Yiting Yu
- Research Center of Smart Sensing Chips, Ningbo Institute of Northwestern Polytechnical University Ningbo 315103 China.,Key Laboratory of Micro/Nano Systems for Aerospace (Ministry of Education), Shaanxi Province Key Laboratory of Micro and Nano Electro-Mechanical Systems, Department of Microsystems Engineering, Northwestern Polytechnical University Xi'an 710072 China
| | - Jeong Ryeol Choi
- Department of Nanoengineering, Kyonggi University Suwon 16227 South Korea
| | - Phuong V Pham
- ZJU-Hangzhou Global Scientific and Technological Innovation Center (HIC), School of Micro-Nano Electronics, Zhejiang University Hangzhou 310027 China
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13
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Rajendran J, Reshetilov AN, Sundramoorthy AK. Preparation of hybrid paper electrode based on hexagonal boron nitride integrated graphene nanocomposite for free-standing flexible supercapacitors. RSC Adv 2021; 11:3445-3451. [PMID: 35424276 PMCID: PMC8694011 DOI: 10.1039/d0ra10735b] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 01/06/2021] [Indexed: 12/15/2022] Open
Abstract
Flexible energy storage devices have received great interest due to the increasing demand for wearable and flexible electronic devices with high-power energy sources. Herein, a novel hybrid flexible hexagonal boron nitride integrated graphene paper (BN/GrP) is fabricated from 2D hexagonal boron nitride (h-BN) nanosheets integrated with graphene sheets dispersion via a simple vacuum filtration method. FE-SEM indicated that layered graphene nanosheets tightly confined with h-BN nanosheets. Further, the Raman spectroscopy confirmed successful integration of BN with graphene. As-prepared BN/GrP free-standing flexible conductive paper showed high electrical conductivity of 5.36 × 104 S m-1 with the sheet resistance of 8.87 Ω sq-1. However, after 1000 continuous bending cycles, the BN/GrP sheet resistance increased just about 8.7% which indicated good flexibility of the paper. Furthermore, as-prepared BN/GrP showed excellent specific capacitance of 321.95 F g-1 at current density of 0.5 A g-1. In addition, the power and energy densities were obtained as 3588.3 W kg-1, and 44.7 W h kg-1, respectively. The stability of the prepared flexible electrode was tested in galvanostatic charge/discharge cycles, where the results showed the 96.3% retention even after 6000 cycles. These results exhibited that the proposed BN/GrP may be useful to prepare flexible energy-storage systems.
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Affiliation(s)
- Jerome Rajendran
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur-603 203 Tamil Nadu India
| | - Anatoly N Reshetilov
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms of the Russian Academy of Sciences (IBPM RAS), Subdivision of "Federal Research Center Pushchino Biological Research Center of the Russian Academy of Sciences" (FRC PBRC RAS) 142290 Pushchino Moscow oblast Russia
| | - Ashok K Sundramoorthy
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur-603 203 Tamil Nadu India
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14
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Sharifi J, Fayazfar H. Highly sensitive determination of doxorubicin hydrochloride antitumor agent via a carbon nanotube/gold nanoparticle based nanocomposite biosensor. Bioelectrochemistry 2021; 139:107741. [PMID: 33524656 DOI: 10.1016/j.bioelechem.2021.107741] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 12/31/2020] [Accepted: 01/05/2021] [Indexed: 12/29/2022]
Abstract
A glassy carbon electrode modified with multi-walled carbon nanotubes (MWCNTs) decorated with gold nanoparticles has been investigated for the first time as an ultrasensitive electrochemical sensor for the determination of doxorubicin hydrochloride (DOX), an efficient antitumor agent. The developed nanocomposite has been characterized by scanning electron microscopy (SEM), besides cyclic and linear sweep voltammetry electrochemical techniques. An efficient catalytic activity for the reduction of DOX has been demonstrated, leading to a significant increase in peak current density and a remarkable decrease in reduction over-potential. Under the optimal condition, a wide linear DOX concentration range from 1×10-11 to 1×10-6 M with a very low detection limit of 6.5 pM was achieved with the modified electrode. Meanwhile, the functionalized MWCNTs/gold nanoparticles indicated an appropriate selectivity, reproducibility, and repeatability as well as long-term stability. The promising outcomes of this research approved the applicability of the developed nanocomposite sensor towards trace amounts of DOX in pharmaceutical and clinical preparations.
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Affiliation(s)
- Javid Sharifi
- Department of Chemical Engineering, Payame Noor University, PO Box 19395-3697, Tehran, Iran
| | - Haniyeh Fayazfar
- Department of Mechanical and Manufacturing Engineering, Ontario Tech University, Oshawa, ON L1G 0C5, Canada.
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15
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Saha A, Khalkho BR, Deb MK. Au–Ag core–shell composite nanoparticles as a selective and sensitive plasmonic chemical probe for l-cysteine detection in Lens culinaris (lentils). RSC Adv 2021; 11:20380-20390. [PMID: 35479888 PMCID: PMC9034027 DOI: 10.1039/d1ra01824h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 05/25/2021] [Indexed: 01/05/2023] Open
Abstract
The present work reported is a simple and selective method for the colorimetrical detection of l-cysteine in Lens culinaris (or lentils) using Au–Ag core–shell (Au core Ag shell) composite nanoparticles as a chemical probe.
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Affiliation(s)
- Anushree Saha
- School of Studies in Chemistry
- Pt. Ravishankar Shukla University
- Raipur-492 010
- India
| | - Beeta Rani Khalkho
- School of Studies in Chemistry
- Pt. Ravishankar Shukla University
- Raipur-492 010
- India
| | - Manas Kanti Deb
- School of Studies in Chemistry
- Pt. Ravishankar Shukla University
- Raipur-492 010
- India
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16
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Nagarajan RD, Murugan P, Sundramoorthy AK. Selective Electrochemical Sensing of NADH and NAD +Using Graphene/Tungstate Nanocomposite Modified Electrode. ChemistrySelect 2020. [DOI: 10.1002/slct.202003554] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ramila D Nagarajan
- Department of Chemistry SRM Institute of Science and Technology Kattankulathur 603 203, Tamil Nadu India
| | - Preethika Murugan
- Department of Chemistry SRM Institute of Science and Technology Kattankulathur 603 203, Tamil Nadu India
| | - Ashok K Sundramoorthy
- Department of Chemistry SRM Institute of Science and Technology Kattankulathur 603 203, Tamil Nadu India
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