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Guo W, Song X, Liu J, Liu W, Chu X, Lei Z. Quantum Dots as a Potential Multifunctional Material for the Enhancement of Clinical Diagnosis Strategies and Cancer Treatments. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1088. [PMID: 38998693 PMCID: PMC11243735 DOI: 10.3390/nano14131088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/20/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024]
Abstract
Quantum dots (QDs) represent a class of nanoscale wide bandgap semiconductors, and are primarily composed of metals, lipids, or polymers. Their unique electronic and optical properties, which stem from their wide bandgap characteristics, offer significant advantages for early cancer detection and treatment. Metal QDs have already demonstrated therapeutic potential in early tumor imaging and therapy. However, biological toxicity has led to the development of various non-functionalized QDs, such as carbon QDs (CQDs), graphene QDs (GQDs), black phosphorus QDs (BPQDs) and perovskite quantum dots (PQDs). To meet the diverse needs of clinical cancer treatment, functionalized QDs with an array of modifications (lipid, protein, organic, and inorganic) have been further developed. These advancements combine the unique material properties of QDs with the targeted capabilities of biological therapy to effectively kill tumors through photodynamic therapy, chemotherapy, immunotherapy, and other means. In addition to tumor-specific therapy, the fluorescence quantum yield of QDs has gradually increased with technological progress, enabling their significant application in both in vivo and in vitro imaging. This review delves into the role of QDs in the development and improvement of clinical cancer treatments, emphasizing their wide bandgap semiconductor properties.
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Affiliation(s)
- Wenqi Guo
- Department of Medical Oncology, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210000, China
| | - Xueru Song
- Department of Medical Oncology, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210000, China
| | - Jiaqi Liu
- Department of Medical Oncology, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210000, China
| | - Wanyi Liu
- Department of Medical Oncology, Jinling Hospital, Nanjing University of Chinese Medicine, Nanjing 210000, China
| | - Xiaoyuan Chu
- Department of Medical Oncology, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210000, China
| | - Zengjie Lei
- Department of Medical Oncology, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210000, China
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2
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Liu X, Wang X, Yu S, Wang G, Li B, Cui T, Lou Z, Ge H. Polarizability characteristics of twisted bilayer graphene quantum dots in the absence of periodic moiré potential. RSC Adv 2023; 13:23590-23600. [PMID: 37555100 PMCID: PMC10404935 DOI: 10.1039/d3ra03444e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 08/01/2023] [Indexed: 08/10/2023] Open
Abstract
Recent studies have documented a rich phenomenology in twisted bilayer graphene (TBG), which is significantly relevant to interlayer electronic coupling, in particular to the cases under an applied electric field. While polarizability measures the response of electrons against applied fields, this work adopts a unique strategy of decomposing global polarizability into distributional contributions to access the interlayer polarization in TBG, as a function of varying twisting angles (θ). Through the construction of a model of twisted graphene quantum dots, we assess distributional polarizability at the first-principles level. Our findings demonstrate that the polarizability perpendicular to the graphene plates can be decomposed into intralayer dipoles and interlayer charge-transfer (CT) components, the latter of which provides an explicit measurement of the interlayer coupling strength and charge transfer potential. Our analysis further reveals that interlayer polarizability dominates the polarizability variation during twisting. Intriguingly, the largest interlayer polarizability and CT driven by an external field occur in the misaligned structures with a size-dependent small angle corresponding to the first appearance of AB stacking, rather than the well-recognized Bernal structures. A derived equation is then employed to address the size dependence on the angle corresponding to the largest values in interlayer polarizability and CT. Our investigation not only characterizes the CT features in the interlayer polarizability of TBG quantum dots, but also sheds light on the existence of the strongest interlayer coupling and charge transfer at small twist angles in the presence of an external electric field, thereby providing a comprehensive understanding of the novel properties of graphene-based nanomaterials.
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Affiliation(s)
- Xiangyue Liu
- The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital Zhengzhou 450008 China
| | - Xian Wang
- Institute of Atomic and Molecular Physics, Key Laboratory of High Energy Density Physics of Ministry of Education, Sichuan University Chengdu 610065 China
| | - Shengping Yu
- School of Chemistry and Environment, Southwest Minzu University Chengdu 610041 China
| | - Guangzhao Wang
- School of Electronic Information Engineering, Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology of Chongqing, Yangtze Normal University Chongqing 408100 China
| | - Bing Li
- The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital Zhengzhou 450008 China
| | - Tiantian Cui
- The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital Zhengzhou 450008 China
| | - Zhaoyang Lou
- The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital Zhengzhou 450008 China
| | - Hong Ge
- The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital Zhengzhou 450008 China
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Braz BA, Hospinal-Santiani M, Martins G, Beirão BCB, Bergamini MF, Marcolino-Junior LH, Soccol CR, Thomaz-Soccol V. Disposable electrochemical platform based on solid-binding peptides and carbon nanomaterials: an alternative device for leishmaniasis detection. Mikrochim Acta 2023; 190:321. [PMID: 37491620 DOI: 10.1007/s00604-023-05891-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 06/29/2023] [Indexed: 07/27/2023]
Abstract
Neglected tropical diseases are those caused by infectious agents or parasites and are considered endemic in low-income populations. These diseases also have unacceptable indicators and low investment in research, drug production, and control. Tropical diseases such as leishmaniasis are some of the main causes of morbidity and mortality around the globe. Electrochemical immunosensors are promising tools for diagnostics against these diseases. One such benefit is the possibility of assisting diagnosis in isolated regions, where laboratory infrastructure is lacking. In this work, different peptides were investigated to detect antibodies against Leishmania in human and canine serum samples. The peptides evaluated (395-KKG and 395-G) have the same recognition site but differ on their solid-binding domains, which ensure affinity to spontaneously bind to either graphene oxide (GO) or graphene quantum dots (GQD). Cyclic voltammetry and differential pulse voltammetry were employed to investigate the electrochemical behavior of each assembly step and the role of each solid-binding domain coupled to its anchoring material. The graphene affinity peptide (395-G) showed better reproducibility and selectivity when coupled to GQD. Under the optimized set of experimental conditions, negative and positive human serum samples responses were distinguished based on a cut-off value of 82.5% at a 95% confidence level. The immunosensor showed selective behavior to antibodies against Mycobacterium leprae and Mycobacterium tuberculosis, which are similar antibodies and potentially sources of false positive tests. Therefore, the use of the graphene affinity peptide as a recognition site achieved outstanding performance for the detection of Leishmania antibodies.
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Affiliation(s)
- Beatriz A Braz
- Laboratory of Electrochemical Sensors (LabSensE), Department of Chemistry, Federal University of Paraná (UFPR), CEP, CP 19032, Curitiba, PR, 81531-980, Brazil
- Molecular Biology Laboratory, Graduate Program in Bioprocess Engineering and Biotechnology, Federal University of Paraná (UFPR), CEP, Curitiba, PR, 81531-980, Brazil
| | - Manuel Hospinal-Santiani
- Molecular Biology Laboratory, Graduate Program in Bioprocess Engineering and Biotechnology, Federal University of Paraná (UFPR), CEP, Curitiba, PR, 81531-980, Brazil
| | - Gustavo Martins
- Laboratory of Electrochemical Sensors (LabSensE), Department of Chemistry, Federal University of Paraná (UFPR), CEP, CP 19032, Curitiba, PR, 81531-980, Brazil
| | - Breno C B Beirão
- Graduate Program in Microbiology, Parasitology, and Pathology, Federal University of Paraná (UFPR), CEP, Curitiba, PR, 81531-980, Brazil
| | - Márcio F Bergamini
- Laboratory of Electrochemical Sensors (LabSensE), Department of Chemistry, Federal University of Paraná (UFPR), CEP, CP 19032, Curitiba, PR, 81531-980, Brazil.
| | - Luiz H Marcolino-Junior
- Laboratory of Electrochemical Sensors (LabSensE), Department of Chemistry, Federal University of Paraná (UFPR), CEP, CP 19032, Curitiba, PR, 81531-980, Brazil.
| | - Carlos R Soccol
- Molecular Biology Laboratory, Graduate Program in Bioprocess Engineering and Biotechnology, Federal University of Paraná (UFPR), CEP, Curitiba, PR, 81531-980, Brazil
| | - Vanete Thomaz-Soccol
- Molecular Biology Laboratory, Graduate Program in Bioprocess Engineering and Biotechnology, Federal University of Paraná (UFPR), CEP, Curitiba, PR, 81531-980, Brazil
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Silva RM, da Silva AD, Camargo JR, de Castro BS, Meireles LM, Silva PS, Janegitz BC, Silva TA. Carbon Nanomaterials-Based Screen-Printed Electrodes for Sensing Applications. BIOSENSORS 2023; 13:bios13040453. [PMID: 37185528 PMCID: PMC10136782 DOI: 10.3390/bios13040453] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 05/17/2023]
Abstract
Electrochemical sensors consisting of screen-printed electrodes (SPEs) are recurrent devices in the recent literature for applications in different fields of interest and contribute to the expanding electroanalytical chemistry field. This is due to inherent characteristics that can be better (or only) achieved with the use of SPEs, including miniaturization, cost reduction, lower sample consumption, compatibility with portable equipment, and disposability. SPEs are also quite versatile; they can be manufactured using different formulations of conductive inks and substrates, and are of varied designs. Naturally, the analytical performance of SPEs is directly affected by the quality of the material used for printing and modifying the electrodes. In this sense, the most varied carbon nanomaterials have been explored for the preparation and modification of SPEs, providing devices with an enhanced electrochemical response and greater sensitivity, in addition to functionalized surfaces that can immobilize biological agents for the manufacture of biosensors. Considering the relevance and timeliness of the topic, this review aimed to provide an overview of the current scenario of the use of carbonaceous nanomaterials in the context of making electrochemical SPE sensors, from which different approaches will be presented, exploring materials traditionally investigated in electrochemistry, such as graphene, carbon nanotubes, carbon black, and those more recently investigated for this (carbon quantum dots, graphitic carbon nitride, and biochar). Perspectives on the use and expansion of these devices are also considered.
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Affiliation(s)
- Rafael Matias Silva
- Department of Chemistry, Federal University of Viçosa, Viçosa 36570-900, MG, Brazil
| | | | - Jéssica Rocha Camargo
- Laboratory of Sensors, Nanomedicine, and Nanostructured Materials, Federal University of São Carlos, Araras 13600-970, SP, Brazil
| | | | - Laís Muniz Meireles
- Federal Center for Technological Education of Minas Gerais, Timóteo 35180-008, MG, Brazil
| | | | - Bruno Campos Janegitz
- Laboratory of Sensors, Nanomedicine, and Nanostructured Materials, Federal University of São Carlos, Araras 13600-970, SP, Brazil
| | - Tiago Almeida Silva
- Department of Chemistry, Federal University of Viçosa, Viçosa 36570-900, MG, Brazil
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Martins G, Gogola JL, Budni LH, Papi MA, Bom MA, Budel ML, de Souza EM, Müller-Santos M, Beirão BC, Banks CE, Marcolino-Junior LH, Bergamini MF. Novel approach based on GQD-PHB as anchoring platform for the development of SARS-CoV-2 electrochemical immunosensor. Anal Chim Acta 2022; 1232:340442. [PMID: 36257733 PMCID: PMC9529294 DOI: 10.1016/j.aca.2022.340442] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/30/2022] [Accepted: 09/22/2022] [Indexed: 11/01/2022]
Abstract
In the present work, we report an innovative approach for immunosensors construction. The experimental strategy is based on the anchoring of biological material at screen-printed carbon electrode (SPE) modified with electrodeposited Graphene Quantum Dots (GQD) and polyhydroxybutyric acid (PHB). It was used as functional substract basis for the recognition site receptor-binding domain (RBD) from coronavirus spike protein (SARS-CoV-2), for the detection of Anti-S antibodies (AbS). SEM images and EDS spectra suggest an interaction of the protein with GQD-PHB sites at the electrode surface. Differential pulse voltametric (DPV) measurements were performed before and after incubation, in presence of the target, shown a decrease in voltametric signal of an electrochemical probe ([Fe(CN)6]3/4-). Using the optimal experimental conditions, analytical curves were performed in PBS and human serum spiked with AbS showing a slight matrix effect and a relationship between voltametric signal and AbS concentration in the range of 100 ng mL-1 and 10 μg mL-1. The selectivity of the proposed sensor was tested against yellow fever antibodies (YF) and the selective layer on the electrode surface did not interact with these unspecific antibodies. Eight samples of blood serum were analyzed and 87.5% of these total investigated provided adequate results. In addition, the present approach showed better results against traditional EDC/NHS reaction with enhancements in time and the possibility to develop an immunosensor in a single drop, since the proteins can be anchored prior to the electrode modification step.
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Affiliation(s)
- Gustavo Martins
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990, Curitiba, PR, Brazil
| | - Jeferson L. Gogola
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990, Curitiba, PR, Brazil
| | - Lucas H. Budni
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990, Curitiba, PR, Brazil
| | - Maurício A. Papi
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990, Curitiba, PR, Brazil
| | - Maritza A.T. Bom
- Núcleo de Fixação de Nitrogênio (NFIX), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná (UFPR), CP: 19046, CEP: 81531-980, Curitiba, PR, Brazil
| | - Maria L.T. Budel
- Núcleo de Fixação de Nitrogênio (NFIX), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná (UFPR), CP: 19046, CEP: 81531-980, Curitiba, PR, Brazil
| | - Emanuel M. de Souza
- Núcleo de Fixação de Nitrogênio (NFIX), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná (UFPR), CP: 19046, CEP: 81531-980, Curitiba, PR, Brazil
| | - Marcelo Müller-Santos
- Núcleo de Fixação de Nitrogênio (NFIX), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná (UFPR), CP: 19046, CEP: 81531-980, Curitiba, PR, Brazil
| | - Breno C.B. Beirão
- Laboratório de Imunologia Comparada, Departamento de Patologia Básica, Universidade Federal do Paraná (UFPR), CEP: 81531-980, Curitiba, PR, Brazil
| | - Craig E. Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, United Kingdom
| | - Luiz H. Marcolino-Junior
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990, Curitiba, PR, Brazil
| | - Márcio F. Bergamini
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990, Curitiba, PR, Brazil,Corresponding author
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6
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Graphene quantum dots: synthesis, properties, and applications to the development of optical and electrochemical sensors for chemical sensing. Mikrochim Acta 2022; 189:258. [PMID: 35701638 DOI: 10.1007/s00604-022-05353-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 05/24/2022] [Indexed: 10/18/2022]
Abstract
GQDs exhibits exceptional electrochemical activity owing to their active edge sites that make them very attractive for biosensing applications. However, their use in the design of new biosensing devices for application to the detection and quantification of toxins, pathogens, and clinical biomarkers has so far not investigated in detail. In this regard, herein we provide a detailed review on various methodologies employed for the synthesis of GQDs, including bottom-up and top-down approaches, with a special focus on their applications in biosensing via fluorescence, photoluminescence, chemiluminescence, electrochemiluminescence, fluorescence resonance energy transfer, and electrochemical techniques. We believe that this review will shed light on the critical issues and widen the applications of GQDs for the design of biosensors with improved analytical response for future applications. HIGHLIGHTS: • Properties of GQDs play a critical role in biosensing applications. • Synthesis of GQDs using top-down and bottom-up approaches is discussed comprehensively. • Overview of advancements in GQD-based sensors over the last decade. • Methods for the design of selective and sensitive GQD-based sensors. • Challenges and opportunities for future GQD-based sensors.
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Xie J, Zhang L, Liu Z, Ling G, Zhang P. Application of electrochemical sensors based on nanomaterials modifiers in the determination of antipsychotics. Colloids Surf B Biointerfaces 2022; 214:112442. [PMID: 35278857 DOI: 10.1016/j.colsurfb.2022.112442] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/21/2022] [Accepted: 03/02/2022] [Indexed: 01/08/2023]
Abstract
At present, the content of antipsychotics in samples is always analyzed by traditional detection methods, including mass spectrometry (MS), spectrophotometry, fluorescence, capillary electrophoresis (CE). However, conventional methods are cumbersome and complex, require a large sample volume, many pre-processing steps, long analysis cycles, expensive instruments, and need well-trained detection capabilities personnel. In addition, patients with schizophrenia require frequent and painful blood collection procedures, which adds additional treatment costs and time burdens. In view of these factors, electrochemical methods have become the most promising candidate technology for timely analysis due to their low cost, simple operation, excellent sensitivity and specificity. As we all know, nanomaterials play an extremely important role in electrochemical sensing applications. As the sensor modifiers, nanomaterials enable electrochemical analysis to overcome the time-consuming and labor-intensive shortcomings of traditional detection methods, and greatly reduce the research cost. Nanomaterials modified electrodes can be used as sensors to determine the concentration of antipsychotics in organisms quickly and accurately, which is a bright spot in the application of nanomaterials. The combination of different nanomaterials can even form a nanocomposite with a synergistic effect. This paper firstly reviews the application of nanomaterials-modified sensors on the basis of research in the past ten years, reviews the use of nanomaterial-modified sensors to quickly and accurately determine the concentration of antipsychotics in biological samples, and demonstrates a new idea of using nanomaterials sensors for drug monitoring and determination. At the end of this review, a brief overview is given of the limitations and the future prospects of nanomaterial sensors for the determination of antipsychotics concentrations.
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Affiliation(s)
- Jiao Xie
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Lijing Zhang
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Zhiling Liu
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Guixia Ling
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China.
| | - Peng Zhang
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China.
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Al-Otaibi JS, Sheena Mary Y. Computational Studies, GERS, Photovoltaic Modelling and Molecular Docking Studies of Diethylstilbestrol and Its Methyl Ether. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2038219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Jamelah S. Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
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9
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Pakapongpan S, Poo-Arporn Y, Tuantranont A, Poo-Arporn RP. A facile one-pot synthesis of magnetic iron oxide nanoparticles embed N-doped graphene modified magnetic screen printed electrode for electrochemical sensing of chloramphenicol and diethylstilbestrol. Talanta 2022; 241:123184. [PMID: 35032900 DOI: 10.1016/j.talanta.2021.123184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/21/2021] [Accepted: 12/26/2021] [Indexed: 10/19/2022]
Abstract
Trace determination of antibacterial agents is crucial to minimize risks of human intoxication and in the prevention of serious environmental impacts. Herein, a simple one-pot solvothermal synthesis approach for a magnetic iron oxide embed nitrogen-doped graphene (MIO@NG) nanohybrid was fabricated without the addition of any extra reductant and its application towards ultrasensitive chloramphenicol (CAP) and diethylstilbestrol (DES) electrochemical sensor is demonstrated to screen for antibiotic residue contamination in milk samples. The prepared nanohybrid was modified on a magnetic screen-printed electrode (MSPE) to make it portable for on-site detection. The determination of two additive drugs, CAP and DES, was achieved based on the reduction current response at MIO@NG modified MSPE (MIO@NG/MSPE) to eliminate interference as far as possible. Uniform dispersed MIO nanoparticles are grown in situ on the surface of nitrogen-doped graphene sheets. The morphology of MIO@NG was confirmed by transmission electron microscopy (TEM) analysis. The chemical structure of the prepared MIO@NG was characterized by x-ray diffraction (XRD), x-ray photoemission spectroscopy (XPS), Raman spectroscopy, and extended x-ray absorption fine structure (EXAFS). Moreover, the superparamagnism property was investigated by vibrating sample magnetometry (VSM). The electrochemical properties of MIO@NG were evaluated with cyclic voltammetry (CV) and square wave voltammetry (SWV). Sensor performance was evaluated by testing the electrochemical activity of CAP and DES in the presence of interferences. The MIO@NG modified electrode presented superior electrochemical performance, including high sensitivity, high catalytic activity, ultimate sensitivity, very fast detection, selectivity, and excellent performance. The MIO@NG modified electrode demonstrated a detection limit of 10 nM for the detection of CAP and 6.5 nM for DES with satisfactory recovery in real samples.
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Affiliation(s)
- Saithip Pakapongpan
- Graphene and Printed Electronics for Dual-Use Applications Research Division, Nation Security and Dual-Use Technology Center, National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand.
| | - Yingyot Poo-Arporn
- Synchrotron Light Research Institute, 111 University Avenue, Nakhon Ratchasima, 30000, Thailand
| | - Adisorn Tuantranont
- Graphene and Printed Electronics for Dual-Use Applications Research Division, Nation Security and Dual-Use Technology Center, National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand
| | - Rungtiva P Poo-Arporn
- Biological Engineering Program, Faculty of Engineering, King Mongkut's University of Technology, Thonburi, Bangkok, 10140, Thailand.
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10
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Lakshmanakumar M, Nesakumar N, Sethuraman S, S RK, Krishnan UM, Rayappan JBB. Fabrication of GQD-Electrodeposited Screen-Printed Carbon Electrodes for the Detection of the CRP Biomarker. ACS OMEGA 2021; 6:32528-32536. [PMID: 34901602 PMCID: PMC8655768 DOI: 10.1021/acsomega.1c04043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/27/2021] [Indexed: 05/24/2023]
Abstract
The traditional three-electrode electrochemical system used in the development of biosensors for detecting various biomarkers of interest necessitates the use of bulk electrodes, which precludes the deployment of handheld electrochemical devices in clinical applications. Affordable screen-printed carbon electrodes (SPCEs) modified with functional interfaces are being developed to enhance the sensitivity of a compact sensing system as a whole. In this work, SPCEs were fabricated on an overhead projection (OHP) sheet in three different active areas of 2 × 2, 3 × 3, and 4 × 4 mm2 using a screen printing technique, and then ∼2 nm sized graphene quantum dots (GQDs) were electrodeposited over the SPCE surface to add functionality for the detection of ultralow levels of one of the cardiac biomarkers, C-reactive protein (CRP). The proposed mediator-dependent voltammetric biosensor exhibited good sensitivity, a low detection limit, and a linear range of 2.45 μA ng-1 mL-1 cm-2, 0.036 ng mL-1, and 0.5-10 ng mL-1, respectively. The fabricated SPCE/GQDs/anti-CRP biosensor could rapidly detect CRP in less than 25 s. The intra- and interassays were performed with five sensor strips, which showed a minimum standard deviation of 1.85 and 2.8%, respectively. The SPCE/GQDs/anti-CRP electrode was used to detect CRP concentrations in a ringer lactate solution. Thus, the developed biosensor has all of the characteristics such as rapidity, inexpensive disposable electrodes, miniaturization, and a lower detection limit needed to evolve as a point-of-care (PoC) application.
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Affiliation(s)
- Muthaiyan Lakshmanakumar
- Centre
for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Electrical
& Electronics Engineering (SEEE), School of Chemical & Biotechnology
(SCBT), School of Arts, Science & Humanities (SASH), SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India
| | - Noel Nesakumar
- Centre
for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Electrical
& Electronics Engineering (SEEE), School of Chemical & Biotechnology
(SCBT), School of Arts, Science & Humanities (SASH), SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India
| | - Swaminathan Sethuraman
- Centre
for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Electrical
& Electronics Engineering (SEEE), School of Chemical & Biotechnology
(SCBT), School of Arts, Science & Humanities (SASH), SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India
| | - Rajan K. S
- Centre
for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Electrical
& Electronics Engineering (SEEE), School of Chemical & Biotechnology
(SCBT), School of Arts, Science & Humanities (SASH), SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India
| | - Uma Maheswari Krishnan
- Centre
for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Electrical
& Electronics Engineering (SEEE), School of Chemical & Biotechnology
(SCBT), School of Arts, Science & Humanities (SASH), SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India
| | - John Bosco Balaguru Rayappan
- Centre
for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Electrical
& Electronics Engineering (SEEE), School of Chemical & Biotechnology
(SCBT), School of Arts, Science & Humanities (SASH), SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India
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11
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Fatemeh Shayanfar, Hamid Sarhadi. Determination of Vitamin C at Modified Screen Printed Electrode: Application for Sensing of Vitamin C in Real Samples. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2021. [DOI: 10.3103/s1068375521040141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Liu Z, Li F, Luo Y, Li M, Hu G, Pu X, Tang T, Wen J, Li X, Li W. Size Effect of Graphene Quantum Dots on Photoluminescence. Molecules 2021; 26:3922. [PMID: 34206960 PMCID: PMC8271461 DOI: 10.3390/molecules26133922] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/20/2021] [Accepted: 06/23/2021] [Indexed: 11/26/2022] Open
Abstract
High-photoluminescence (PL) graphene quantum dots (GQDs) were synthesized by a simple one-pot hydrothermal process, then separated by dialysis bags of different molecular weights. Four separated GQDs of varying sizes were obtained and displayed different PL intensities. With the decreasing size of separated GQDs, the intensity of the emission peak becomes much stronger. Finally, the GQDs of the smallest size revealed the most energetic PL intensity in four separated GQDs. The PL energy of all the separated GQDs shifted slightly, supported by density functional theory calculations.
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Affiliation(s)
- Ziyi Liu
- College of Science, Guilin University of Technology, Guilin 541004, China; (Z.L.); (F.L.); (Y.L.); (G.H.); (T.T.); (J.W.); (X.L.)
| | - Fei Li
- College of Science, Guilin University of Technology, Guilin 541004, China; (Z.L.); (F.L.); (Y.L.); (G.H.); (T.T.); (J.W.); (X.L.)
| | - Yi Luo
- College of Science, Guilin University of Technology, Guilin 541004, China; (Z.L.); (F.L.); (Y.L.); (G.H.); (T.T.); (J.W.); (X.L.)
| | - Ming Li
- College of Science, Guilin University of Technology, Guilin 541004, China; (Z.L.); (F.L.); (Y.L.); (G.H.); (T.T.); (J.W.); (X.L.)
| | - Guanghui Hu
- College of Science, Guilin University of Technology, Guilin 541004, China; (Z.L.); (F.L.); (Y.L.); (G.H.); (T.T.); (J.W.); (X.L.)
| | - Xianjuan Pu
- Shanghai Applied Radiation Institute, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Tao Tang
- College of Science, Guilin University of Technology, Guilin 541004, China; (Z.L.); (F.L.); (Y.L.); (G.H.); (T.T.); (J.W.); (X.L.)
| | - Jianfeng Wen
- College of Science, Guilin University of Technology, Guilin 541004, China; (Z.L.); (F.L.); (Y.L.); (G.H.); (T.T.); (J.W.); (X.L.)
| | - Xinyu Li
- College of Science, Guilin University of Technology, Guilin 541004, China; (Z.L.); (F.L.); (Y.L.); (G.H.); (T.T.); (J.W.); (X.L.)
| | - Weitao Li
- Textile and Garment Industry of Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, China
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13
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Musa AM, Kiely J, Luxton R, Honeychurch KC. Recent progress in screen-printed electrochemical sensors and biosensors for the detection of estrogens. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116254] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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14
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Gogola JL, Martins G, Gevaerd A, Blanes L, Cardoso J, Marchini FK, Banks CE, Bergamini MF, Marcolino-Junior LH. Label-free aptasensor for p24-HIV protein detection based on graphene quantum dots as an electrochemical signal amplifier. Anal Chim Acta 2021; 1166:338548. [PMID: 34022998 DOI: 10.1016/j.aca.2021.338548] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 04/06/2021] [Accepted: 04/09/2021] [Indexed: 02/06/2023]
Abstract
Human immunodeficiency virus (HIV) is still considered a pandemic, and the detection of p24-HIV protein has an important role in the early diagnosis of HIV in adults and newborns. The accessibility of these trials depends on the price and execution difficulty of the method, which can be reduced using electrochemical methods by using enzymeless approaches, disposable and accurate devices. In this work, graphene quantum dots were acquired by a simple synthesis and employed as an electrochemical signal amplifier and support for the aptamer immobilization through a feasible and stable modification of disposable screen-printed electrodes. The device has been easily assembled and used to detect p24-HIV protein without the interference of similar proteins or sample matrix. Using the best set of experimental conditions, a linear correlation between analytical signal and log of p24-HIV concentration from 0.93 ng mL-1 to 93 μg mL-1 and a limit of detection of 51.7 pg mL-1 were observed. The developed device was applied to p24 determination in spiked human serum and provided distinct levels of signal for positive and negative samples, successfully identifying real samples with the target protein. This sensor is a step towards the development of point-of-care devices and the popularization of electrochemical methods for trials and diagnostics of relevant diseases.
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Affiliation(s)
- Jeferson L Gogola
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal Do Paraná (UFPR), CP 19032, CEP, 81531-990 Curitiba, PR, Brazil
| | - Gustavo Martins
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal Do Paraná (UFPR), CP 19032, CEP, 81531-990 Curitiba, PR, Brazil
| | - Ava Gevaerd
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal Do Paraná (UFPR), CP 19032, CEP, 81531-990 Curitiba, PR, Brazil
| | - Lucas Blanes
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Curitiba, Brazil
| | | | - Fabricio Klerynton Marchini
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Curitiba, Brazil
| | - Craig E Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street Manchester M1 5GD, UK
| | - Márcio F Bergamini
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal Do Paraná (UFPR), CP 19032, CEP, 81531-990 Curitiba, PR, Brazil
| | - Luiz H Marcolino-Junior
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal Do Paraná (UFPR), CP 19032, CEP, 81531-990 Curitiba, PR, Brazil.
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15
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Bibani M, Ktari N, Fourati N, Zerrouki C, Kalfat R. A Better Understanding of Diethylstilbestrol Electro‐oxidation: Towards the Design of an Electrochemical Sensor. ELECTROANAL 2020. [DOI: 10.1002/elan.202060216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Malek Bibani
- Laboratoire Matériaux Traitement et Analyse, INRAP, BiotechPole Sidi-Thabet 2020- Ariana Tunisia
- Université de Tunis El Manar, Faculté des Sciences de Tunis Campus Universitaire Farhat Hached 1068- Tunis Tunisia
| | - Nadia Ktari
- Laboratoire Matériaux Traitement et Analyse, INRAP, BiotechPole Sidi-Thabet 2020- Ariana Tunisia
| | - Najla Fourati
- SATIE UMR 8029, CNRS, ENS-Cachan, Cnam, 292 rue Saint Martin 75003- Paris France
| | - Chouki Zerrouki
- SATIE UMR 8029, CNRS, ENS-Cachan, Cnam, 292 rue Saint Martin 75003- Paris France
| | - Rafik Kalfat
- Laboratoire Matériaux Traitement et Analyse, INRAP, BiotechPole Sidi-Thabet 2020- Ariana Tunisia
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16
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Torrinha Á, Oliveira TMBF, Ribeiro FW, Correia AN, Lima-Neto P, Morais S. Application of Nanostructured Carbon-Based Electrochemical (Bio)Sensors for Screening of Emerging Pharmaceutical Pollutants in Waters and Aquatic Species: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1268. [PMID: 32610509 PMCID: PMC7408367 DOI: 10.3390/nano10071268] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/20/2020] [Accepted: 06/22/2020] [Indexed: 01/13/2023]
Abstract
Pharmaceuticals, as a contaminant of emergent concern, are being released uncontrollably into the environment potentially causing hazardous effects to aquatic ecosystems and consequently to human health. In the absence of well-established monitoring programs, one can only imagine the full extent of this problem and so there is an urgent need for the development of extremely sensitive, portable, and low-cost devices to perform analysis. Carbon-based nanomaterials are the most used nanostructures in (bio)sensors construction attributed to their facile and well-characterized production methods, commercial availability, reduced cost, high chemical stability, and low toxicity. However, most importantly, their relatively good conductivity enabling appropriate electron transfer rates-as well as their high surface area yielding attachment and extraordinary loading capacity for biomolecules-have been relevant and desirable features, justifying the key role that they have been playing, and will continue to play, in electrochemical (bio)sensor development. The present review outlines the contribution of carbon nanomaterials (carbon nanotubes, graphene, fullerene, carbon nanofibers, carbon black, carbon nanopowder, biochar nanoparticles, and graphite oxide), used alone or combined with other (nano)materials, to the field of environmental (bio)sensing, and more specifically, to pharmaceutical pollutants analysis in waters and aquatic species. The main trends of this field of research are also addressed.
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Affiliation(s)
- Álvaro Torrinha
- REQUIMTE-LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal;
| | - Thiago M. B. F. Oliveira
- Centro de Ciência e Tecnologia, Universidade Federal do Cariri, Av. Tenente Raimundo Rocha, 1639, Cidade Universitária, 63048-080 Juazeiro do Norte, CE, Brazil;
| | - Francisco W.P. Ribeiro
- Instituto de Formação de Educadores, Universidade Federal do Cariri, Rua Olegário Emídio de Araújo, S/N, Centro, 63260-000 Brejo Santo - CE, Brazil;
| | - Adriana N. Correia
- GELCORR, Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Bloco 940, Campus do Pici, 60455-970 Fortaleza-CE, Brazil; (A.N.C.); (P.L.-N.)
| | - Pedro Lima-Neto
- GELCORR, Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Bloco 940, Campus do Pici, 60455-970 Fortaleza-CE, Brazil; (A.N.C.); (P.L.-N.)
| | - Simone Morais
- REQUIMTE-LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal;
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17
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Carbonaceous Nanomaterials Employed in the Development of Electrochemical Sensors Based on Screen-Printing Technique—A Review. Catalysts 2020. [DOI: 10.3390/catal10060680] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
This paper aims to revise research on carbonaceous nanomaterials used in developing sensors. In general, nanomaterials are known to be useful in developing high-performance sensors due to their unique physical and chemical properties. Thus, descriptions were made for various structural features, properties, and manner of functionalization of carbon-based nanomaterials used in electrochemical sensors. Of the commonly used technologies in manufacturing electrochemical sensors, the screen-printing technique was described, highlighting the advantages of this type of device. In addition, an analysis was performed in point of the various applications of carbon-based nanomaterial sensors to detect analytes of interest in different sample types.
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18
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Karimi-Maleh H, Karimi F, Alizadeh M, Sanati AL. Electrochemical Sensors, a Bright Future in the Fabrication of Portable Kits in Analytical Systems. CHEM REC 2019; 20:682-692. [PMID: 31845511 DOI: 10.1002/tcr.201900092] [Citation(s) in RCA: 214] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/28/2019] [Accepted: 12/04/2019] [Indexed: 12/16/2022]
Abstract
Analysis of food, pharmaceutical, and environmental compounds is an inevitable issue to evaluate quality of the compounds used in human life. Quality of drinking water, food products, and pharmaceutical compounds is directly associated with human health. Presence of forbidden additives in food products, toxic compounds in water samples and drugs with low quality lead to important problems for human health. Therefore, attention to analytical strategy for investigation of quality of food, pharmaceutical, and environmental compounds and monitoring presence of forbidden compounds in materials used by humans has increased in recent years. Analytical methods help to identify and quantify both permissible and unauthorized compounds present in the materials used in human daily life. Among analytical methods, electrochemical methods have been shown to have more advantages compared to other analytical methods due to their portability and low cost. Most of big companies have applied this type of analytical methods because of their fast and selective analysis. Due to simple operation and high diversity of electroanalytical sensors, these types of sensors are expected to be the future generation of analytical systems. Therefore, many scientists and researchers have focused on designing and fabrication of electroanalytical sensors with good selectivity and high sensitivity for different types of compounds such as drugs, food, and environmental pollutants. In this paper, we described the mechanism and different examples of DNA, enzymatic and electro-catalytic methods for electroanalytical determination of drug, food and environmental compounds.
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Affiliation(s)
- Hassan Karimi-Maleh
- School of Resources and Enviroment, University of Electronic Science and Technology of China, P.O. Box 611731, Xiyuan Ave, Chengdu, P.R. China.,Department of Chemical Engineering, Laboratory of Nanotechnology, Quchan University of Technology, Quchan, Iran.,Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein Campus, 2028, Johannesburg, South Africa
| | - Fatemeh Karimi
- School of Resources and Enviroment, University of Electronic Science and Technology of China, P.O. Box 611731, Xiyuan Ave, Chengdu, P.R. China.,Department of Chemical Engineering, Laboratory of Nanotechnology, Quchan University of Technology, Quchan, Iran
| | - Marzieh Alizadeh
- Center for Nanotechnology in Drug Delivery, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
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19
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Sebastian N, Yu WC, Hu YC, Balram D, Yu YH. Sonochemical synthesis of iron-graphene oxide/honeycomb-like ZnO ternary nanohybrids for sensitive electrochemical detection of antipsychotic drug chlorpromazine. ULTRASONICS SONOCHEMISTRY 2019; 59:104696. [PMID: 31430655 DOI: 10.1016/j.ultsonch.2019.104696] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/15/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
We report a novel electrochemical sensor for the sensitive and selective determination of the antipsychotic drug chlorpromazine (CPZ) based on the iron (Fe) nanoparticles-loaded graphene oxide (GO-Fe)/three dimensional (3D) honeycomb-like zinc oxide (ZnO) nanohybrid modified screen printed carbon electrode (SPCE). The 3D hierarchical honeycomb-like ZnO was synthesized using a novel aqueous hydrothermal method and the GO-Fe/ZnO nanohybrid was prepared based on an inexpensive and fast sonochemical method using a high-intensity ultrasonic bath (Delta DC200H, 200 W, 40 KHz). Characterizations including scanning electron microscopy, elemental mapping, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy were carried out as part of this work. The electrocatalytic oxidation behavior of CPZ at various electrodes was investigated using the cyclic voltammetry technique, through which the GO-Fe/ZnO modified SPCE was identified as the best performing electrode. The quantitative determination of CPZ was then performed using the differential pulse voltammetry technique. The as-prepared GO-Fe/ZnO/SPCE sensor exhibited a quick and sensitive response towards the oxidation of CPZ with linear concentration ranges from 0.02 to 172.74 μM and 222.48 to 1047.74 μM. The modified SPCE sensor displayed a low detection limit (LOD) of 0.02 µM and a high sensitivity of 7.56 µA µM-1 cm-2. The proposed sensor also showed remarkable operational and storage stability, reproducibility, and repeatability. Furthermore, the practicability of the GO-Fe/ZnO/SPCE sensor has been verified with real sample analysis using commercial antipsychotic CPZ tablets and human urine samples, and adequate recovery has been achieved.
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Affiliation(s)
- Neethu Sebastian
- Institute of Organic and Polymeric Materials, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei 106, Taiwan, ROC
| | - Wan-Chin Yu
- Institute of Organic and Polymeric Materials, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei 106, Taiwan, ROC.
| | - Yu-Chung Hu
- Department of Chemistry, Fu Jen Catholic University, New Taipei City 24205, Taiwan, ROC
| | - Deepak Balram
- Department of Electrical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei 106, Taiwan, ROC
| | - Yuan-Hsiang Yu
- Department of Chemistry, Fu Jen Catholic University, New Taipei City 24205, Taiwan, ROC.
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20
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Lu H, Li W, Dong H, Wei M. Graphene Quantum Dots for Optical Bioimaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902136. [PMID: 31304647 DOI: 10.1002/smll.201902136] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 06/20/2019] [Indexed: 05/08/2023]
Abstract
Graphene quantum dots (GQDs) have shown great potential in bioimaging applications due to their excellent biocompatibility, low cytotoxicity, feasibility for surface functionalization, physiological stability, and tunable fluorescence properties. This Review first introduces the intriguing optical properties of GQDs that are suitable for biological imaging, and is followed by the GQDs' synthetic strategies. The emergent and latest development methods for tuning GQDs' optical properties are further described in detail. The recent advanced applications of GQDs in vitro, particularly in cell imaging, targeted imaging, and theranostic nanoplatform fabrication, are included. The applications of GQDs for in vivo bioimaging are also covered. Finally, the Review is concluded with the challenges and prospectives that face this nascent yet exciting field.
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Affiliation(s)
- Huiting Lu
- Department of Chemistry, School of Chemistry and Bioengineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Wenjun Li
- Department of Chemistry, School of Chemistry and Bioengineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Haifeng Dong
- Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Bioengineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Menglian Wei
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, T6G, 2G2, Canada
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