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Parambath JBM, Vijai Anand K, Alawadhi H, Mohamed AA. Impact of Graphene Oxide on SERS Enhancement of Arylated Gold Nanospheres: Mechanistic Insight. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:17675-17688. [PMID: 39120713 DOI: 10.1021/acs.langmuir.4c02095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
The performance of gold nanospheres as substrates for surface-enhanced Raman spectroscopy (SERS) investigation has been compromised by their low adsorption efficiency, high colloidal dispersibility, and diminishing hot spots. However, gold nanosphere substrates modified using aryldiazonium gold(III) chemistry via durable gold-carbon bonds are promising for SERS enhancement due to their controlled organic layer density. In this study, arylated gold nanospheres AuNSs-COOH have shown SERS enhancement when incorporated into graphene oxide (GO) to form nanocomposites (NCs) labeled AuNSs-COOH/GO (AuNCs). Our investigation using X-ray photoelectron spectroscopy (XPS) surface analysis showed that the gold-aryl nanospheres reached their maximum SERS enhancement with an optimal coating. The evaluation included the Au 4f chemical environment and compact graphitic layers for the SERS substrate optimization. The fabricated AuNC substrates demonstrated superior efficiency and reproducibility. A broad linear range of 10-3-10-7 M 4-nitrophenol detection was obtained with exceptional repeatability, as evidenced by the relative standard deviation (RSD) of 9.32%. A detailed investigation of the energy profiles, particularly the valence band maximum (VBM) and band gap values of the substrate and analyte, depicted the electromagnetic (EM) and charge-transfer-induced enhancement and the role of GO inclusion in substrate efficiency in SERS enhancement mechanisms. The finite-difference time domain (FDTD) simulation results revealed that AuNCs incorporated with graphitic nanostructures exhibited the most substantial SERS effect through an EM field enhancement mechanism. This study demonstrated significant SERS enhancement using gold-aryl nanospheres when modified with GO, in contrast to the typical reliance on anisotropic nanostructures.
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Affiliation(s)
- Javad B M Parambath
- Center for Advanced Materials Research, Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates
- Department of Physics, Sathyabama Institute of Science & Technology, Chennai 600119, Tamil Nadu, India
- Department of Chemistry, Sathyabama Institute of Science & Technology, Chennai 600119, Tamil Nadu, India
| | - Kabali Vijai Anand
- Department of Physics, Sathyabama Institute of Science & Technology, Chennai 600119, Tamil Nadu, India
| | - Hussain Alawadhi
- Center for Advanced Materials Research, Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates
- Department of Applied Physics & Astronomy, College of Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Ahmed A Mohamed
- Center for Advanced Materials Research, Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates
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2
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Zhang C, Chen T, Ying Y, Wu J. Detection of Dopamine Based on Aptamer-Modified Graphene Microelectrode. SENSORS (BASEL, SWITZERLAND) 2024; 24:2934. [PMID: 38733043 PMCID: PMC11086122 DOI: 10.3390/s24092934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 04/28/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024]
Abstract
In this paper, a novel aptamer-modified nitrogen-doped graphene microelectrode (Apt-Au-N-RGOF) was fabricated and used to specifically identify and detect dopamine (DA). During the synthetic process, gold nanoparticles were loaded onto the active sites of nitrogen-doped graphene fibers. Then, aptamers were modified on the microelectrode depending on Au-S bonds to prepare Apt-Au-N-RGOF. The prepared microelectrode can specifically identify DA, avoiding interference with other molecules and improving its selectivity. Compared with the N-RGOF microelectrode, the Apt-Au-N-RGOF microelectrode exhibited higher sensitivity, a lower detection limit (0.5 μM), and a wider linear range (1~100 μM) and could be applied in electrochemical analysis fields.
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Affiliation(s)
| | | | | | - Jing Wu
- School of Science, China University of Geosciences (Beijing), Beijing 100083, China; (C.Z.); (T.C.); (Y.Y.)
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3
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Chai X, Li Y, Ma C, Guo M, Fan Z, Zhao J, Cheng B. A voltammetric sensor based on a reduced graphene oxide/β-cyclodextrin/silver nanoparticle/polyoxometalate nanocomposite for detecting uric acid and tyrosine. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:2528-2535. [PMID: 37191157 DOI: 10.1039/d3ay00207a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
In the present work, an electrochemical sensor based on reduced graphene oxide/β-cyclodextrin/silver nanoparticle/polyoxometalate (RGO-CD-AgNP-POM) was developed for the simultaneous detection of uric acid (UA) and L-tyrosine (L-Tyr). First, an RGO-CD-AgNP-POM nanocomposite was synthesized via a simple photoreduction method and characterized by transmission electron microscopy (TEM), energy dispersive X-ray imaging (EDS), scanning electron microscopy (SEM), and thermal gravimetric analysis (TGA). As an electrode material, RGO-CD-AgNP-POM showed wide linear ranges (0.5-500 μM for UA, and 1-400 μM for L-Tyr) and relatively low detection limits (0.11 μM for UA, and 0.23 μM for L-Tyr). In addition, the combination of supramolecular recognition from CD and excellent electrochemical performances from RGO, AgNPs and POM was expected to enhance the sensing performances toward UA and L-Tyr in real samples with favorable recovery ranges (99%-104%). This nanocomposite provides a new platform for developing the family of electrode materials.
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Affiliation(s)
- Xu Chai
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, P. R. China.
| | - Yongbiao Li
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, P. R. China.
| | - Chaonan Ma
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, P. R. China.
| | - Minjie Guo
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, P. R. China.
| | - Zhi Fan
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, P. R. China.
| | - Jin Zhao
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, P. R. China.
| | - Bowen Cheng
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, P. R. China.
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4
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Fan H, Le Boeuf W, Maheshwari V. Au-Pt-Ni nanochains as dopamine catalysts: role of elements and their spatial distribution. NANOSCALE ADVANCES 2023; 5:2244-2250. [PMID: 37056628 PMCID: PMC10089120 DOI: 10.1039/d2na00932c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
Multi-element materials can improve biosensing ability as each element can catalyze different steps in a reaction pathway. By combining Pt and Ni on self-assembled 1D gold nanochains and controlling their spatial distribution, a detailed understanding of each element's role in dopamine oxidation is developed. In addition, the developed synthesis process provides a simple way to fabricate multi-element composites for electrocatalytic applications based on electrical double-layer formation on the surface of charged nanoparticles. The performance parameters of the catalyst, such as its sensitivity, limit of detection, and range of operation for dopamine sensing, are optimized by changing the relative ratios of Pt : Ni and the morphology of the Pt and Ni domains, using the developed understanding. The morphology of the domains also affects the oxidation state of Ni, which is crucial to the performance of the electrocatalyst.
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Affiliation(s)
- Hua Fan
- Department of Chemistry, Waterloo Institute for Nanotechnology 200 University Ave. West Waterloo N2L 3G1 ON Canada
| | - William Le Boeuf
- Department of Chemistry, Waterloo Institute for Nanotechnology 200 University Ave. West Waterloo N2L 3G1 ON Canada
| | - Vivek Maheshwari
- Department of Chemistry, Waterloo Institute for Nanotechnology 200 University Ave. West Waterloo N2L 3G1 ON Canada
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Police Patil AV, Chuang YS, Li C, Wu CC. Recent Advances in Electrochemical Immunosensors with Nanomaterial Assistance for Signal Amplification. BIOSENSORS 2023; 13:bios13010125. [PMID: 36671960 PMCID: PMC9855954 DOI: 10.3390/bios13010125] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/24/2022] [Accepted: 01/07/2023] [Indexed: 05/31/2023]
Abstract
Electrochemical immunosensors have attracted immense attention due to the ease of mass electrode production and the high compatibility of the miniature electric reader, which is beneficial for developing point-of-care diagnostic devices. Electrochemical immunosensors can be divided into label-free and label-based sensing strategies equipped with potentiometric, amperometric, voltammetric, or impedimetric detectors. Emerging nanomaterials are frequently used on electrochemical immunosensors as a highly rough and conductive interface of the electrodes or on nanocarriers of immobilizing capture antibodies, electroactive mediators, or catalyzers. Adopting nanomaterials can increase immunosensor characteristics with lower detection limits and better sensitivity. Recent research has shown innovative immobilization procedures of nanomaterials which meet the requirements of different electrochemical immunosensors. This review discusses the past five years of advances in nanomaterials (metal nanoparticles, metal nanostructures, carbon nanotubes, and graphene) integrated into the electrochemical immunosensor. Furthermore, the new tendency and endeavors of nanomaterial-based electrochemical immunosensors are discussed.
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Affiliation(s)
- Avinash V. Police Patil
- Department of Bio-Industrial Mechatronics Engineering, National Chung Hsing University, No. 145, Xingda Rd., South Dist., Taichung City 402, Taiwan
| | - Yu-Sheng Chuang
- Department of Bio-Industrial Mechatronics Engineering, National Chung Hsing University, No. 145, Xingda Rd., South Dist., Taichung City 402, Taiwan
| | - Chenzhong Li
- Department of Biochemistry and Molecular Biology, Tulane University, 1324 Tulane Ave., New Orleans, LA 70112, USA
| | - Ching-Chou Wu
- Department of Bio-Industrial Mechatronics Engineering, National Chung Hsing University, No. 145, Xingda Rd., South Dist., Taichung City 402, Taiwan
- Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, No. 145, Xingda Rd., South Dist., Taichung City 402, Taiwan
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Ma C, Xu P, Chen H, Cui J, Guo M, Zhao J. An electrochemical sensor based on reduced graphene oxide/β-cyclodextrin/multiwall carbon nanotubes/ polyoxometalate tetracomponent hybrid: Simultaneous determination of ascorbic acid, dopamine and uric acid. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Tang M, Li J, Cai X, Sun T, Chen C. Single-atom Nanozymes for Biomedical Applications: Recent Advances and Challenges. Chem Asian J 2022; 17:e202101422. [PMID: 35143111 DOI: 10.1002/asia.202101422] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/08/2022] [Indexed: 11/07/2022]
Abstract
Nanozymes have received extensive attention in the fields of sensing and detection, medical therapy, industry, and agriculture thanks to the combination of the catalytic properties of natural enzymes and the physicochemical properties of nanomaterials, coupled with superior stability and ease of preparation. Despite the promise of nanozymes, conventional nanozymes are constrained by their oversized size and low catalytic capacity in sophisticated practical application environments. single-atom nanozymes (SAzymes) were characterized as nanozymes with high catalytic efficiency by uniformly distributed single atoms as catalysis sites, thus effectively addressing the defects of conventional nanozymes. This paper reviews the activity improvement scheme and catalytic mechanism of SAzymes and highlights the latest research progress of SAzymes in the fields of biomedical sensing and therapy. Eventually, the challenges and future directions of SAzymes are discussed in this paper.
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Affiliation(s)
- Minglu Tang
- Northeast Forestry University, Department of chemistry, CHINA
| | - Jingqi Li
- Northeast Forestry University, Department of chemistry, CHINA
| | - Xinda Cai
- Northeast Forestry University, Department of chemistry, CHINA
| | - Tiedong Sun
- Northeast Forestry University, 26 Hexing road, Xiangfang district, Harbin city, Heilongjiang province, 150040, Harbin, CHINA
| | - Chunxia Chen
- Northeast Forestry University, Department of chemistry, CHINA
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8
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Enzyme-like Fe-N5 single atom catalyst for simultaneous electrochemical detection of dopamine and uric acid. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115956] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Aqlan FM, Alam M, Al-Bogami AS, Saleh TS, Wani MY, Al-Farga A, Asiri AM, Karim MR, Ahmed J, Fazal M, Rahman MM. Efficient electro-chemical sensor for sensitive Cd2+detection based on novel in-situ synthesized hydrazonoyl bromide (HB). J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129690] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Shokry A, Khalil M, Ibrahim H, Soliman M, Ebrahim S. Acute toxicity assessment of polyaniline/Ag nanoparticles/graphene oxide quantum dots on Cypridopsis vidua and Artemia salina. Sci Rep 2021; 11:5336. [PMID: 33674670 PMCID: PMC7935903 DOI: 10.1038/s41598-021-84903-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 02/22/2021] [Indexed: 02/07/2023] Open
Abstract
Nanotoxicology is argued and considered one of the emerging topics. In this study, polyaniline (PANI)/2-acrylamido-2-methylpropanesulfonic acid (AMPSA) capped silver nanoparticles (NPs)/graphene oxide (GO) quantum dots (QDs) nanocomposite (PANI/Ag (AMPSA)/GO QDs NC) as a nanoadsorbent has a potential for removal of toxic hexavalent chromium (Cr(VI)) ions from water. The acute toxicity of this NC was evaluated on Artemia salina and freshwater Ostracods (Cypridopsis vidua) larvae for 48 h. The measurements were made at 24 and 48 h with 3 repetitions. The 50% effective concentration (EC50) values of the NC were determined after the exposure of these organisms. According to the results of the optical microscope, it was found that both experimental organisms intake the NC. In the toxicity results of Ostracods, the NC had a highly toxic effect only at 250 mg/L after 48 h and the EC50 value was 157.6 ± 6.4 mg/L. For Artemia salina individuals, it was noted that they were less sensitive than the Ostracods and EC50 value was 476 ± 25.1 mg/L after 48 h. These results indicated that PANI/Ag (AMPSA)/GO QDs NC has low toxicity towards both investigated organisms.
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Affiliation(s)
- Azza Shokry
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, P.O. Box 832, Alexandria, Egypt.
| | - Marwa Khalil
- Department of Nanotechnology and Composite Materials, Institute of New Materials and Advanced Technology, City of Scientific Research and Technological Applications (SRTA-City), New Borg El Arab City, P.O. Box 21934, Alexandria, Egypt
| | - Hesham Ibrahim
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, P.O. Box 832, Alexandria, Egypt
| | - Moataz Soliman
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, P.O. Box 832, Alexandria, Egypt
| | - Shaker Ebrahim
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, P.O. Box 832, Alexandria, Egypt
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11
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Nagal V, Kumar V, Khan M, AlOmar SY, Tripathy N, Singh K, Khosla A, Ahmad N, Hafiz AK, Ahmad R. A highly sensitive uric acid biosensor based on vertically arranged ZnO nanorods on a ZnO nanoparticle-seeded electrode. NEW J CHEM 2021. [DOI: 10.1039/d1nj03744g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Vertically-arranged ZnO nanorods grown on a ZnO nanoparticle-seeded FTO electrode using a hydrothermal method for highly sensitive uric acid biosensor fabrication.
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Affiliation(s)
- Vandana Nagal
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi-110025, India
| | - Virendra Kumar
- Nanotechnology Lab, School of Physical Sciences, Jawaharlal Nehru University (JNU), New Delhi-110067, India
| | - Marya Khan
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi-110025, India
| | - Suliman Yousef AlOmar
- Zoology Department, College of Science, King Saud University, Riyadh-11451, Kingdom of Saudi Arabia
| | - Nirmalya Tripathy
- Departments of Pharmacy, Oregon State University, Corvallis, OR-97331, USA
| | - Kedar Singh
- Nanotechnology Lab, School of Physical Sciences, Jawaharlal Nehru University (JNU), New Delhi-110067, India
| | - Ajit Khosla
- Department of Mechanical Systems Engineering, Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University, Riyadh-11451, Kingdom of Saudi Arabia
| | | | - Rafiq Ahmad
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi-110025, India
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12
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Duraisamy V, Sudha V, Annadurai K, Senthil Kumar SM, Thangamuthu R. Ultrasensitive simultaneous detection of ascorbic acid, dopamine, uric acid and acetaminophen on a graphitized porous carbon-modified electrode. NEW J CHEM 2021. [DOI: 10.1039/d0nj04806b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
NHCS-1000/GCE produces a noticeable electrocatalytic response towards the anodic oxidation for the multiple sensing of AA, DA, UA and AC.
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Affiliation(s)
- Velu Duraisamy
- Electroorganic and Materials Electrochemistry (EME) Division
- CSIR-Central Electrochemical Research Institute (CECRI)
- Karaikudi-630 003
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Velayutham Sudha
- Electroorganic and Materials Electrochemistry (EME) Division
- CSIR-Central Electrochemical Research Institute (CECRI)
- Karaikudi-630 003
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Kuppusamy Annadurai
- Electroorganic and Materials Electrochemistry (EME) Division
- CSIR-Central Electrochemical Research Institute (CECRI)
- Karaikudi-630 003
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Sakkarapalayam Murugesan Senthil Kumar
- Electroorganic and Materials Electrochemistry (EME) Division
- CSIR-Central Electrochemical Research Institute (CECRI)
- Karaikudi-630 003
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Rangasamy Thangamuthu
- Electroorganic and Materials Electrochemistry (EME) Division
- CSIR-Central Electrochemical Research Institute (CECRI)
- Karaikudi-630 003
- India
- Academy of Scientific and Innovative Research (AcSIR)
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Musarraf Hussain M, Asiri AM, Rahman MM. Non-enzymatic simultaneous detection of acetylcholine and ascorbic acid using ZnO·CuO nanoleaves: Real sample analysis. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105534] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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14
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Alam MM, Asiri AM, Rahman MM, Islam MA. Selective detection of ascorbic acid with wet-chemically prepared CdO/SnO2/V2O5 micro-sheets by electrochemical approach. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03689-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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15
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Hu FX, Hu T, Chen S, Wang D, Rao Q, Liu Y, Dai F, Guo C, Yang HB, Li CM. Single-Atom Cobalt-Based Electrochemical Biomimetic Uric Acid Sensor with Wide Linear Range and Ultralow Detection Limit. NANO-MICRO LETTERS 2020; 13:7. [PMID: 34138193 PMCID: PMC8187548 DOI: 10.1007/s40820-020-00536-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 09/13/2020] [Indexed: 05/17/2023]
Abstract
Uric acid (UA) detection is essential in diagnosis of arthritis, preeclampsia, renal disorder, and cardiovascular diseases, but it is very challenging to realize the required wide detection range and low detection limit. We present here a single-atom catalyst consisting of Co(II) atoms coordinated by an average of 3.4 N atoms on an N-doped graphene matrix (A-Co-NG) to build an electrochemical biomimetic sensor for UA detection. The A-Co-NG sensor achieves a wide detection range over 0.4-41,950 μM and an extremely low detection limit of 33.3 ± 0.024 nM, which are much better than previously reported sensors based on various nanostructured materials. Besides, the A-Co-NG sensor also demonstrates its accurate serum diagnosis for UA for its practical application. Combination of experimental and theoretical calculation discovers that the catalytic process of the A-Co-NG toward UA starts from the oxidation of Co species to form a Co3+-OH-UA*, followed by the generation of Co3+-OH + *UA_H, eventually leading to N-H bond dissociation for the formation of oxidized UA molecule and reduction of oxidized Co3+ to Co2+ for the regenerated A-Co-NG. This work provides a promising material to realize UA detection with wide detection range and low detection limit to meet the practical diagnosis requirements, and the proposed sensing mechanism sheds light on fundamental insights for guiding exploration of other biosensing processes.
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Affiliation(s)
- Fang Xin Hu
- Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou, 215009, People's Republic of China
| | - Tao Hu
- Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou, 215009, People's Republic of China
| | - Shihong Chen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, People's Republic of China
| | - Dongping Wang
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, People's Republic of China
| | - Qianghai Rao
- Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou, 215009, People's Republic of China
| | - Yuhang Liu
- Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou, 215009, People's Republic of China
| | - Fangyin Dai
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, People's Republic of China
| | - Chunxian Guo
- Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou, 215009, People's Republic of China.
| | - Hong Bin Yang
- Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou, 215009, People's Republic of China.
| | - Chang Ming Li
- Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou, 215009, People's Republic of China.
- Institute for Advanced Cross-field Science and College of Life Science, Qingdao University, Qingdao, 200671, People's Republic of China.
- Institute for Clean Energy and Advanced Materials, School of Materials and Energy, Southwest University, Chongqing, 400715, People's Republic of China.
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16
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Abou Hammad AB, Elzwawy A, Mansour AM, Alam MM, Asiri AM, Karim MR, Rahman MM, El Nahrawy AM. Detection of 3,4-diaminotoluene based on Sr 0.3Pb 0.7TiO 3/CoFe 2O 4 core/shell nanocomposite via an electrochemical approach. NEW J CHEM 2020. [DOI: 10.1039/d0nj01074j] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We reported a scalable sol–gel method for the preparation of Sr0.3Pb0.7TiO3/CoFe2O4 core–shell magnetic nanocomposite with a finely controlled shell and evaluated its efficiency as an electrochemical sensor for the selective detection of 3,4-diaminotoluene.
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Affiliation(s)
- Ali B. Abou Hammad
- Solid State Physics Department
- Physics research division
- National Research Centre
- Cairo
- Egypt
| | - Amir Elzwawy
- Ceramics Department
- National Research Centre
- Cairo
- Egypt
| | - A. M. Mansour
- Solid State Physics Department
- Physics research division
- National Research Centre
- Cairo
- Egypt
| | - M. M. Alam
- Department of Chemical Engineering and Polymer Science
- Shahjalal University of Science and Technology
- Sylhet 3100
- Bangladesh
| | - Abdullah M. Asiri
- Center of Excellence for Advanced Materials Research and Chemistry Department, Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Mohammad Razaul Karim
- Center of Excellence for Advanced Materials Research and Chemistry Department, Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Mohammed M. Rahman
- Center of Excellence for Advanced Materials Research and Chemistry Department, Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Amany M. El Nahrawy
- Solid State Physics Department
- Physics research division
- National Research Centre
- Cairo
- Egypt
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17
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Rahman MM, Wahid A, Asiri AM, Awual MR, Karim MR. One-step facile synthesis of SnO2@Nd2O3 nanocomposites for selective amidol detection in aqueous phase. NEW J CHEM 2020. [DOI: 10.1039/d0nj00421a] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this approach, amidol, a toxic organic chemical, is used as a staining developer electrochemically detected by using binary SnO2@Nd2O3 nanocomposites (NCs) by deposition onto a flat glassy carbon electrode (GCE).
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Affiliation(s)
- Mohammed M. Rahman
- Chemistry Department
- King Abdulaziz University
- Faculty of Science
- Jeddah 21589
- Saudi Arabia
| | - Abdul Wahid
- Chemistry Department
- King Abdulaziz University
- Faculty of Science
- Jeddah 21589
- Saudi Arabia
| | - Abdullah M. Asiri
- Chemistry Department
- King Abdulaziz University
- Faculty of Science
- Jeddah 21589
- Saudi Arabia
| | - Md. Rabiul Awual
- Center of Excellence for Advanced Materials Research
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Mohammad Razaul Karim
- Chemistry Department
- King Abdulaziz University
- Faculty of Science
- Jeddah 21589
- Saudi Arabia
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Fabrication of CQDs/MoS2/Mo foil for the improved electrochemical detection. Anal Chim Acta 2019; 1079:79-85. [DOI: 10.1016/j.aca.2019.06.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/30/2019] [Accepted: 06/10/2019] [Indexed: 01/15/2023]
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Xu GR, Ge C, Liu D, Jin L, Li YC, Zhang TH, Rahman MM, Li XB, Kim W. In-situ electrochemical deposition of dendritic Cu-Cu2S nanocomposites onto glassy carbon electrode for sensitive and non-enzymatic detection of glucose. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.05.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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