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Liaquat H, Imran M, Latif S, Hussain N, Bilal M. Multifunctional nanomaterials and nanocomposites for sensing and monitoring of environmentally hazardous heavy metal contaminants. ENVIRONMENTAL RESEARCH 2022; 214:113795. [PMID: 35803339 DOI: 10.1016/j.envres.2022.113795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 05/25/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
The applications of conventional sensors are limited by the long response time, high cost, large detection limit, low sensitivity, complicated usage and low selectivity. These sensors are nowadays replaced by Nanocomposite-based modalities and nanomaterials which are known for their high selectivity and physical and chemical properties. These nanosensors effectively detect heavy metal contaminants in the environment as the discharge of heavy metals into natural water as a result of human activity has become a global epidemic. Exposure to these toxic metals might induce many health-related complications, including kidney failure, brain injury, immune disorders, muscle paleness, cardiac damage, nervous system impairment and limb paralysis. Therefore, designing and developing novel sensing systems for the detection and recognition of these harmful metals in various environmental matrices, particularly water, is of extremely important. Emerging nanotechnological approaches in the past two decades have played a key role in overcoming environmentally-related problems. Nanomaterial-based fabrication of chemical nanosensors has widely been applied as a powerful analytical tool for sensing heavy metals. Portability, high sensitivity, on-site detection capability, better device performance and selectivity are all advantages of these nanosensors. The detection and selectivity have been improved using molecular recognition probes for selective binding on different nanostructures. This study aims to evaluate the sensing properties of various nanomaterials such as metal-organic frameworks, fluorescent materials, metal-based nanoparticles, carbon-based nanomaterials and quantum dots and graphene-based nanomaterials and quantum dots for heavy metal ions recognition. All these nano-architectures are frequently served as effective fluorescence probes to directly (or by modification with some large or small biomolecules) sense heavy metal ions for improved selectivity. However, efforts are still needed for the simultaneous designing of multiple metal ion-based detection systems, exclusively in colorimetric or optical fluorescence nanosensors for heavy metal cations.
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Affiliation(s)
- Hina Liaquat
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Lahore, 54000, Pakistan
| | - Muhammad Imran
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Lahore, 54000, Pakistan
| | - Shoomaila Latif
- School of Physical Sciences, University of the Punjab, Lahore, 54000, Pakistan
| | - Nazim Hussain
- Center for Applied Molecular Biology (CAMB), University of the Punjab, Lahore, 54000, Pakistan
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China.
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2
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Revesz IA, Hickey SM, Sweetman MJ. Metal ion sensing with graphene quantum dots: detection of harmful contaminants and biorelevant species. J Mater Chem B 2022; 10:4346-4362. [PMID: 35616384 DOI: 10.1039/d2tb00408a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Graphene quantum dots (GQDs) are attractive materials for use as highly selective and sensitive chemical sensors, owing to their simple preparation and affordability. GQDs have been successfully deployed as sensors for toxic metal ions, which is a significant issue due to the ever-increasing environmental contamination from agricultural and industrial activities. Despite the success of GQDs in this area, the mechanisms which underpin GQD-metal ion specificity are rarely explored. This lack of information can result in difficulties when attempting to replicate published procedures and can limit the judicious design of new highly selective GQD sensors. Furthermore, there is a dearth of GQD examples which selectively detect biologically relevant alkali and alkaline earth metals. This review will present the current state of GQDs as metal ion sensors for harmful contaminants, highlighting and discussing the discrepancies that exist in the proposed mechanisms regarding metal ion selectivity. The emerging field of GQD sensors for biorelevant metal ion species will also be reviewed, with a perspective to the future of this highly versatile material.
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Affiliation(s)
- Isabella A Revesz
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, South Australia, 5000, Australia.
| | - Shane M Hickey
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, South Australia, 5000, Australia.
| | - Martin J Sweetman
- Clinical and Health Sciences, Cancer Research Institute, University of South Australia, Adelaide, South Australia, 5000, Australia.
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3
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Singh H, Bamrah A, Bhardwaj SK, Deep A, Khatri M, Kim KH, Bhardwaj N. Nanomaterial-based fluorescent sensors for the detection of lead ions. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124379. [PMID: 33309138 DOI: 10.1016/j.jhazmat.2020.124379] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 06/12/2023]
Abstract
Lead (Pb) poisoning has been a scourge to the human to pose sighnificant health risks (e.g., organ disorders, carcinogenicity, and genotoxicity) as observed from many different parts of the world, especially in developing countries. The demand for accurate sensors for its detection, especially in environmental media (soil, water, food, etc.) has hence been growing steadily over the years. The potential utility of fluorescent nanosensors as an important analytical tool is recognized due to their astonishing characteristics (e.g., high sensitivity/selectivity, enhanced detection performance, low cost, portability, and rapid on-site detection ability). This review is organized to offer insight into the recent developments in fluorescent nanosensing technology for the detection of lead ions (Pb2+). To this end, different types of nanomaterials explored for such applications have been classified and evaluated with respect to performance, especially in terms of sensitivity. This review will help researchers gain a better knowledge on the status and importance of optical nanosensors so as to remediate the contamination of lead and associated problems. The technical challenges and prospects in the development of nanosensing systems for Pb2+ are also discussed.
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Affiliation(s)
- Harpreet Singh
- Department of Biotechnology, University Institute of Engineering Technology (UIET), Panjab University, Chandigarh, India
| | - Amy Bamrah
- Department of Biotechnology, University Institute of Engineering Technology (UIET), Panjab University, Chandigarh, India
| | - Sanjeev K Bhardwaj
- Department of Nanomaterials and Application Technology, Center of Innovative and Applied Bioprocessing, Sector 81 (Knowledge City), S.A.S. Nagar, 140306 Punjab, India
| | - Akash Deep
- Central Scientific Instruments Organization, Sector 30C, Chandigarh 160030, India
| | - Madhu Khatri
- Department of Biotechnology, University Institute of Engineering Technology (UIET), Panjab University, Chandigarh, India
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea.
| | - Neha Bhardwaj
- Department of Biotechnology, University Institute of Engineering Technology (UIET), Panjab University, Chandigarh, India.
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4
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Liu C, Huang C, Ma R, Zhai W, Deng J, Zhou T. Cu 2+-Regulated reversible coordination interaction of GQD@Tb/GMP ICP nanoparticles: towards directly monitoring cerebrospinal acetylcholinesterase as a biomarker for cholinic brain dysfunction. Analyst 2021; 145:7849-7857. [PMID: 33410430 DOI: 10.1039/d0an01440k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work demonstrates a new strategy for sensing cerebrospinal acetylcholinesterase (AChE) as a cholinergic biomarker for brain dysfunction based on graphene quantum dot (GQD)-functionalized lanthanide infinite coordination polymer (Ln-ICP) nanoparticles. The ICPs used in this work were comprised of two components, i.e. a supramolecular Ln-ICP host formed by the coordination between the GMP ligand and central metal ion Tb3+, and guest GQDs with abundant functional groups, which were utilized as antenna ligands to further sensitize the fluorescence of Tb/GMP. Upon excitation at 300 nm, the obtained GQD@Tb/GMP ICP nanoparticles exhibited enhanced green fluorescence from Tb/GMP. With the addition of Cu2+, the competitive coordination between Cu2+ and GQDs weakened the antenna effect, leading to a decrease in the fluorescence of GQD@Tb/GMP ICPs. However, in the presence of thiocholine (TCh), a thiol-containing compound hydrolyzed from acetylthiocholine (ATCh) by AChE, a stronger coordination interaction between Cu2+ and TCh occurred, resulting in the restoration of the fluorescence of GQD@Tb/GMP ICPs. Using the method established herein, the cerebrospinal AChE fluctuation of rats with acute organophosphorus pesticide (OP) poisoning or chronic Alzheimer's disease (AD) could be monitored. This study essentially provides a novel approach to realize the direct monitoring of a biomarker for brain dysfunction by regulating the competitive coordination interaction reversibly, which is critical in the early diagnosis and therapy of brain diseases.
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Affiliation(s)
- Chang Liu
- School of Ecological and Environmental Sciences, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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Liang X, Wu T, Tang M. Microarray analysis of gene expression differences in microglia after exposure to graphene quantum dots. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 749:141385. [PMID: 32818856 DOI: 10.1016/j.scitotenv.2020.141385] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
Graphene quantum dots (GQDs) have been broadly applied in biomedicine in recent years. So far, researches have reported that GQDs might contribute to the injury of the central nervous system (CNS), yet the latent toxicological mechanism is not clear. This study aims to investigate the underlying biological mechanism responsible for the neurotoxicity of nitrogen-doped GQDs (N-GQDs) and amino-functionalized GQDs (A-GQDs) by use of genome-wide transcription microarray. The findings showed that 174 and 1341 genes were altered significantly in the BV2 cells treated by 25 μg/mL N-GQDs and 100 μg/mL N-GQDs compared with the control, respectively. As for the BV2 cells exposed to 100 μg/mL A-GQDs, 1396 diversely expressed genes were detected. By comparing the 100 μg/mL N-GQDs exposed group with 100 μg/mL A-GQDs exposed group, the expression of 256 genes was extensively altered, including 58 upregulated genes and 198 downregulated genes. From Gene Ontology (GO) analysis, the altered genes were mainly enriched in functions of ion channel activation and cellular processes. Based on the KEGG pathway and signal-net analysis, the toxicity of GQDs in BV2 cells was closely related to calcium signaling pathway, cell cycle and endocytosis. And the pathways that the shared mRNAs involved all served as the crucial roles in the neurotoxicity of GQDs despite the chemical functionalization (N-GQDs or A-GQDs). In addition, the consequences from qRT-PCR, Western blot, intracellular calcium level measurements and comet assay further confirmed that calcium dyshomeostasis, DNA damage and cell cycle arrest were the key factors responsible for the GQDs-induced neurotoxicity through affecting several classical signaling pathways. In conclusion, our research will supply essential data for further studies on mechanisms of GQDs-induced neurotoxicity by use of genome-wide screening.
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Affiliation(s)
- Xue Liang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, P.R. China
| | - Tianshu Wu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, P.R. China.
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, P.R. China.
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Ghorai S, Roy I, De S, Dash PS, Basu A, Chattopadhyay D. Exploration of the potential efficacy of natural resource-derived blue-emitting graphene quantum dots in cancer therapeutic applications. NEW J CHEM 2020. [DOI: 10.1039/c9nj06239d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a method involving oxidative functionalization followed by a solvothermal cutting technique for the synthesis of strong-blue-emitting GQD nanomaterial in cancer therapy.
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Affiliation(s)
- Soumitra Ghorai
- Research & Development Division
- Tata Steel
- Jamshedpur 831007
- India
| | - Indranil Roy
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata 700009
- India
| | - Sriparna De
- Department of Allied Health Sciences
- Brainware University
- Kolkata 700125
- India
| | | | - Arijita Basu
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata 700009
- India
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7
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Wu S, Li K, Zhang Z, Chen L. Synthesis of imprinted chitosan/AuNPs/graphene-coated MWCNTs/Nafion film for detection of lead ions. NEW J CHEM 2020. [DOI: 10.1039/d0nj02522d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
An ultrasensitive electrochemical platform based on ion-imprinted nanocomposites for monitoring Pb2+ was proposed for environmental protection and food safety applications.
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Affiliation(s)
- Shuping Wu
- Research School of Polymeric Materials
- School of Materials Science & Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Kanghui Li
- Research School of Polymeric Materials
- School of Materials Science & Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Zihang Zhang
- Research School of Polymeric Materials
- School of Materials Science & Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Lingyun Chen
- Department of Agricultural, Food and Nutritional Science
- University of Alberta
- Edmonton
- Canada
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8
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Anas NAA, Fen YW, Omar NAS, Daniyal WMEMM, Ramdzan NSM, Saleviter S. Development of Graphene Quantum Dots-Based Optical Sensor for Toxic Metal Ion Detection. SENSORS (BASEL, SWITZERLAND) 2019; 19:E3850. [PMID: 31489912 PMCID: PMC6766831 DOI: 10.3390/s19183850] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/02/2019] [Accepted: 08/13/2019] [Indexed: 02/08/2023]
Abstract
About 71% of the Earth's surface is covered with water. Human beings, animals, and plants need water in order to survive. Therefore, it is one of the most important substances that exist on Earth. However, most of the water resources nowadays are insufficiently clean, since they are contaminated with toxic metal ions due to the improper disposal of pollutants into water through industrial and agricultural activities. These toxic metal ions need to be detected as fast as possible so that the situation will not become more critical and cause more harm in the future. Since then, numerous sensing methods have been proposed, including chemical and optical sensors that aim to detect these toxic metal ions. All of the researchers compete with each other to build sensors with the lowest limit of detection and high sensitivity and selectivity. Graphene quantum dots (GQDs) have emerged as a highly potential sensing material to incorporate with the developed sensors due to the advantages of GQDs. Several recent studies showed that GQDs, functionalized GQDs, and their composites were able to enhance the optical detection of metal ions. The aim of this paper is to review the existing, latest, and updated studies on optical sensing applications of GQDs-based materials toward toxic metal ions and future developments of an excellent GQDs-based SPR sensor as an alternative toxic metal ion sensor.
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Affiliation(s)
- Nur Ain Asyiqin Anas
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Yap Wing Fen
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
| | - Nur Alia Sheh Omar
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | | | - Nur Syahira Md Ramdzan
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Silvan Saleviter
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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9
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Zhang H, Huang Y, Zheng Y, Zhou J, Wu Q, Zhang Z, Gan F, Chen W. Fluorescence covalent interaction enhanced sensor for lead ion based on novel graphitic carbon nitride nanocones. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 217:141-146. [PMID: 30933777 DOI: 10.1016/j.saa.2019.03.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 02/23/2019] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
Abstract
Novel graphitic carbon nitride nanocones (g-CNNCs) were synthesized for the first time in this study. The SEM, TEM, XPS and FT-IR were used to research the structure of the g-CNNCs. We found that the g-CNNCs showed high selective and sensitive for fluorescence enhancement detection of Pb2+ ion via covalent interaction. In addition, the g-CNNCs exhibit stable and specific concentration-dependent fluorescence intensity in the presence of Pb2+ ion in the range of 1-200 μmol·dm-3, and the limit of detection was estimated to be 0.0438 μmol·dm-3 (3S/k). More importantly, the g-CNNCs were used to detect practical samples with satisfactory results.
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Affiliation(s)
- Hanqiang Zhang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China; College of Chemistry and Materials, Longyan University, Longyan 364000, PR China.
| | - Yihong Huang
- Zhangzhou College of Science & Technology, Zhangzhou 363202, PR China
| | - Yulin Zheng
- College of Chemistry and Materials, Longyan University, Longyan 364000, PR China
| | - Jiangcong Zhou
- College of Chemistry and Materials, Longyan University, Longyan 364000, PR China
| | - Quansheng Wu
- College of Chemistry and Materials, Longyan University, Longyan 364000, PR China
| | - Zhusen Zhang
- College of Chemistry and Materials, Longyan University, Longyan 364000, PR China
| | - Feng Gan
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China.
| | - Wuhua Chen
- College of Chemistry and Materials, Longyan University, Longyan 364000, PR China.
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Lasley SM. The Use of Intracerebral Microdialysis to Elucidate Environmentally Induced Neurotoxic Mechanisms. CURRENT PROTOCOLS IN TOXICOLOGY 2019; 80:e72. [PMID: 30939232 PMCID: PMC6615941 DOI: 10.1002/cptx.72] [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] [Indexed: 11/11/2022]
Abstract
The technique of microdialysis permits the assessment of neurotransmitter activity and the monitoring of other cellular entities in tissue extracellular fluid. The method is widely used for quantifying biogenic amine and amino acid transmitters, peptides, administered drugs, and other molecules in response to various experimental treatments. This article provides an overview of the manner in which the methodology of intracerebral microdialysis is utilized in the field of neurotoxicology to elucidate the actions of environmental agents. The technique is employed in a variety of creative ways to address specific experimental goals involving myriad toxicants. With appropriate consideration of method parameters, investigators have also been able to address mechanistic issues in their studies. These investigations consist of sampling of neurotransmitters in extracellular fluid after various protocols of environmental metal exposure as well as assessments of blood-brain barrier permeability, the detection of reactive oxygen species, and description of the toxicodynamics of environmental agents. The purpose of this examination is not to review the investigational findings, per se, but to highlight the various approaches utilized with this methodology and the experimental questions that have been addressed. © 2019 by John Wiley & Sons, Inc.
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Affiliation(s)
- Stephen M Lasley
- Department of Cancer Biology and Pharmacology, University of Illinois College of Medicine Peoria, Peoria, Illinois
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11
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Aliyev EM, Khan MM, Nabiyev AM, Alosmanov RM, Bunyad-zadeh IA, Shishatskiy S, Filiz V. Covalently Modified Graphene Oxide and Polymer of Intrinsic Microporosity (PIM-1) in Mixed Matrix Thin-Film Composite Membranes. NANOSCALE RESEARCH LETTERS 2018; 13:359. [PMID: 30421344 PMCID: PMC6232192 DOI: 10.1186/s11671-018-2771-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 10/24/2018] [Indexed: 05/15/2023]
Abstract
In this study, mixed matrix membranes (MMMs) consisting of graphene oxide (GO) and functionalized graphene oxide (FGO) incorporated in a polymer of intrinsic microporosity (PIM-1) serving as a polymer matrix have been fabricated by dip-coating method, and their single gas transport properties were investigated. Successfully surface-modified GOs were characterized by Fourier transform infrared spectroscopy (FTIR), UV-Vis spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The effect of FGO loading on MMM morphology and performance was investigated by varying the FGO content in polymer matrix from 9 to 84 wt.%. Use of high FGO content in the polymer matrix helped to reveal difference in interaction of functionalized fillers with PIM-1 and even to discuss the change of FGO stiffness and filler alignment to the membrane surface depending on functional group nature.
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Affiliation(s)
- Elvin M. Aliyev
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany
- Baku State University, Z. Khalilov str. 23, AZ 1148 Baku, Azerbaijan
| | - Muntazim Munir Khan
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany
| | - Afig M. Nabiyev
- Baku State University, Z. Khalilov str. 23, AZ 1148 Baku, Azerbaijan
| | | | | | - Sergey Shishatskiy
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany
| | - Volkan Filiz
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany
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Shtepliuk I, Yakimova R. Interband Absorption in Few-Layer Graphene Quantum Dots: Effect of Heavy Metals. MATERIALS 2018; 11:ma11071217. [PMID: 30012974 PMCID: PMC6073920 DOI: 10.3390/ma11071217] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 01/28/2023]
Abstract
Monolayer, bilayer, and trilayer graphene quantum dots (GQDs) with different binding abilities to elemental heavy metals (HMs: Cd, Hg, and Pb) were designed, and their electronic and optical properties were investigated theoretically to understand deeply the optical response under heavy metal exposure. To gain insight into the nature of interband absorption, we performed density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations for thickness-varying GQDs. We found that the interband absorption in GQDs can be efficiently tuned by controlling the thickness of GQDs to attain the desirable coloration of the interacting complex. We also show that the strength of the interaction between GQDs and Cd, Hg, and Pb is strongly dependent on the number of sp2-bonded layers. The results suggest that the thickness of GQDs plays an important role in governing the hybridization between locally-excited (LE) and charge-transfer (CT) states of the GQDs. Based on the partial density-of-states (DOS) analysis and in-depth knowledge of excited states, the mechanisms underlying the interband absorption are discussed. This study suggests that GQDs would show an improved sensing performance in the selective colorimetric detection of lead by the thickness control.
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Affiliation(s)
- Ivan Shtepliuk
- Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden.
- Frantsevich Institute for Problems of Materials Science, NASU, 142 Kyiv, Ukraine.
| | - Rositsa Yakimova
- Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden.
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Wang B, Shen J, Huang Y, Liu Z, Zhuang H. Graphene Quantum Dots and Enzyme-Coupled Biosensor for Highly Sensitive Determination of Hydrogen Peroxide and Glucose. Int J Mol Sci 2018; 19:E1696. [PMID: 29875333 PMCID: PMC6032169 DOI: 10.3390/ijms19061696] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 05/25/2018] [Accepted: 05/28/2018] [Indexed: 12/21/2022] Open
Abstract
In this paper, a simple and specific graphene quantum dots (GQDs)-based fluorescent biosensor adopted for the determination of glucose based on the combination of the enzyme-coupled method and fluorescence quenching mechanism is demonstrated. Glucose was oxidized by the enzyme glucose oxidase (GOx), forming hydrogen peroxide (H 2 O 2 ) via the catalysis by horseradish peroxidase (HRP). H 2 O 2 was then employed to oxidize phenol to quinone, which led to effective quenching effect in the GQDs⁻GOx⁻HRP⁻phenol system. By optimizing the reaction conditions of the GQDs-enzyme system, a linear relationship between the concentration of glucose and the fluorescence intensity over a range of 0.2⁻10 μ mol/L was obtained. The limit of detection for glucose is 0.08 μ mol/L. The present biosensor for the determination of glucose showed satisfactory reproducibility and accuracy in human serum samples. Since the enzymes have high specificity and unique affinity to the certain substance, the enzyme-coupled system promises a sensitive way for further detection of those chemicals which could be oxidized by enzymes and generated H 2 O 2 or glucose. GQDs and other fluorescent materials coupled with several enzymes can be applied to extensive sensing field.
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Affiliation(s)
- Bingdi Wang
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China.
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin 130022, China.
| | - Jing Shen
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China.
| | - Yanjun Huang
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China.
| | - Zhenning Liu
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin 130022, China.
| | - Hong Zhuang
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China.
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14
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Toehold-mediated strand displacement reaction triggered by nicked DNAzymes substrate for amplified electrochemical detection of lead ion. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.04.083] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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16
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Saenwong K, Nuengmatcha P, Sricharoen P, Limchoowong N, Chanthai S. GSH-doped GQDs using citric acid rich-lime oil extract for highly selective and sensitive determination and discrimination of Fe 3+ and Fe 2+ in the presence of H 2O 2 by a fluorescence "turn-off" sensor. RSC Adv 2018; 8:10148-10157. [PMID: 35540853 PMCID: PMC9078709 DOI: 10.1039/c7ra13432k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 02/17/2018] [Indexed: 12/17/2022] Open
Abstract
Synthesis and characterization of graphene quantum dots (GQDs) simultaneously doped with 1% glutathione (GSH-GQDs) by pyrolysis using citric acid rich-lime oil extract as a starting material. The excitation wavelength (λ max = 337 nm) of the obtained GSH-GQD solution is blue shifted from that of bare GQDs (λ max = 345 nm), with the same emission wavelength (λ max = 430 nm) indicating differences in the desired N and S matrices decorating the carbon based nanoparticles, without any background effect of both ionic strength and masking agent. For highly Fe3+-sensitive detection under optimum conditions, acetate buffer at pH 4.0 in the presence of 50 μM H2O2, the linearity range was 1.0-150 μM (R 2 = 0.9984), giving its calibration curve: y = 34.934x + 169.61. The LOD and LOQ were found to be 0.10 and 0.34 μM, respectively. The method's precisions expressed in terms of RSDs for repeatability (n = 3 × 3 for intra-day analysis) were 2.03 and 3.17% and for reproducibility (n = 5 × 3 for inter-day analysis) were 3.11 and 4.55% for Fe2+ and Fe3+, respectively. The recoveries of the method expressed as the mean percentage (n = 3) were found in the ranges of 100.1-104.1 and 98.08-102.7% for Fe2+ and Fe3+, respectively. The proposed method was then implemented satisfactorily for trace determination of iron speciation in drinking water.
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Affiliation(s)
- Khanitta Saenwong
- Materials Chemistry Research Center, Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand
| | - Prawit Nuengmatcha
- Nanomaterials Chemistry Research Unit, Department of Chemistry, Faculty of Science and Technology, Nakhon Si Thammarat Rajabhat University Nakhon Si Thammarat 80280 Thailand
| | - Phitchan Sricharoen
- Materials Chemistry Research Center, Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand
| | - Nunticha Limchoowong
- Materials Chemistry Research Center, Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand
| | - Saksit Chanthai
- Materials Chemistry Research Center, Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand
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17
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Shtepliuk I, Yakimova R. Interband transitions in closed-shell vacancy containing graphene quantum dots complexed with heavy metals. Phys Chem Chem Phys 2018; 20:21528-21543. [DOI: 10.1039/c8cp03306d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
High-performance optical detection of toxic heavy metals by using graphene quantum dots (GQDs) requires a strong interaction between the metals and GQDs, which can be reached through artificial creation of vacancy-type defects in GQDs.
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Affiliation(s)
- Ivan Shtepliuk
- Department of Physics, Chemistry and Biology
- Linköping University
- Linköping
- Sweden
- Frantsevich Institute for Problems of Materials Science
| | - Rositsa Yakimova
- Department of Physics, Chemistry and Biology
- Linköping University
- Linköping
- Sweden
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18
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Ciotta E, Paoloni S, Richetta M, Prosposito P, Tagliatesta P, Lorecchio C, Venditti I, Fratoddi I, Casciardi S, Pizzoferrato R. Sensitivity to Heavy-Metal Ions of Unfolded Fullerene Quantum Dots. SENSORS (BASEL, SWITZERLAND) 2017; 17:E2614. [PMID: 29135946 PMCID: PMC5713155 DOI: 10.3390/s17112614] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 10/31/2017] [Accepted: 11/12/2017] [Indexed: 02/07/2023]
Abstract
A novel type of graphene-like quantum dots, synthesized by oxidation and cage-opening of C60 buckminsterfullerene, has been studied as a fluorescent and absorptive probe for heavy-metal ions. The lattice structure of such unfolded fullerene quantum dots (UFQDs) is distinct from that of graphene since it includes both carbon hexagons and pentagons. The basic optical properties, however, are similar to those of regular graphene oxide quantum dots. On the other hand, UFQDs behave quite differently in the presence of heavy-metal ions, in that multiple sensitivity to Cu2+, Pb2+ and As(III) was observed through comparable quenching of the fluorescent emission and different variations of the transmittance spectrum. By dynamic light scattering measurements and transmission electron microscope (TEM) images we confirmed, for the first time in metal sensing, that this response is due to multiple complexation and subsequent aggregation of UFQDs. Nonetheless, the explanation of the distinct behaviour of transmittance in the presence of As(III) and the formation of precipitate with Pb2+ require further studies. These differences, however, also make it possible to discriminate between the three metal ions in view of the implementation of a selective multiple sensor.
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Affiliation(s)
- Erica Ciotta
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Stefano Paoloni
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Maria Richetta
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Paolo Prosposito
- Department of Industrial Engineering INSTM and CiMER, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Pietro Tagliatesta
- Department of Chemical Sciences and Technology, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Chiara Lorecchio
- Department of Chemical Sciences and Technology, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Iole Venditti
- Department of Chemistry, University of Rome Sapienza, 00187 Rome, Italy.
| | - Ilaria Fratoddi
- Department of Chemistry, University of Rome Sapienza, 00187 Rome, Italy.
| | - Stefano Casciardi
- National Institute for Insurance against Accidents at Work (INAIL), Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, 00078 Monte Porzio Catone, 00133 Rome, Italy.
| | - Roberto Pizzoferrato
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy.
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19
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Yan M, Zhu C, Huang Y, Yan J, Chen A. Ultrasensitive detection of lead(II) using a turn-on probe based on the use of an aptamer and a water-soluble fluorescent perylene probe. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2292-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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20
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Levanova EP, Vilms AI, Bezborodov VA, Babenko IA, Sosnovskaya NG, Istomina NV, Albanov AI, Russavskaya NV, Rozentsveig IB. Synthesis of polydentate chalcogen-containing ligands using the system hydrazine hydrate–base. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363217030069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Paper strip-embedded graphene quantum dots: a screening device with a smartphone readout. Sci Rep 2017; 7:976. [PMID: 28428623 PMCID: PMC5430532 DOI: 10.1038/s41598-017-01134-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 03/27/2017] [Indexed: 12/14/2022] Open
Abstract
Simple, inexpensive and rapid sensing systems are very demanded for a myriad of uses. Intrinsic properties of emerging paper-based analytical devices have demonstrated considerable potential to fulfill such demand. This work reports an easy-to-use, low cost, and disposable paper-based sensing device for rapid chemical screening with a smartphone readout. The device comprises luminescent graphene quantum dots (GQDs) sensing probes embedded into a nitrocellulose matrix where the resonance energy transfer phenomenon seems to be the sensing mechanism. The GQDs probes were synthesized from citric acid by a pyrolysis procedure, further physisorbed and confined into small wax-traced spots on the nitrocellulose substrate. The GQDs were excited by an UV LED, this, is powered by a smartphone used as both; energy source and imaging capture. The LED was contained within a 3D-printed dark chamber that isolates the paper platform from external light fluctuations leading to highly reproducible data. The cellulose-based device was proven as a promising screening tool for phenols and polyphenols in environmental and food samples, respectively. It opens up new opportunities for simple and fast screening of organic compounds and offers numerous possibilities for versatile applications. It can be especially useful in remote settings where sophisticated instrumentation is not always available.
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22
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A Fe3O4@SiO2@graphene quantum dot core-shell structured nanomaterial as a fluorescent probe and for magnetic removal of mercury(II) ion. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2134-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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23
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Electrolyzing synthesis of boron-doped graphene quantum dots for fluorescence determination of Fe3+ ions in water samples. Talanta 2017; 164:100-109. [DOI: 10.1016/j.talanta.2016.11.019] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/31/2016] [Accepted: 11/02/2016] [Indexed: 12/15/2022]
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24
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Li S, Fan T, Liu X, Liu F, Meng H, Liu Y, Pan F. Graphene Quantum Dots Embedded in Bi 2Te 3 Nanosheets To Enhance Thermoelectric Performance. ACS APPLIED MATERIALS & INTERFACES 2017; 9:3677-3685. [PMID: 28071045 DOI: 10.1021/acsami.6b14274] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Novel Bi2Te3/graphene quantum dots (Bi2Te3/GQDs) hybrid nanosheets with a unique structure that GQDs are homogeneously embedded in the Bi2Te3 nanosheet matrix have been synthesized by a simple solution-based synthesis strategy. A significantly reduced thermal conductivity and enhanced powder factor are observed in the Bi2Te3/GQDs hybrid nanosheets, which is ascribed to the optimized thermoelectric transport properties of the Bi2Te3/GQDs interface. Furthermore, by varying the size of the GQDs, the thermoelectric performance of Bi2Te3/GQDs hybrid nanostructures could be further enhanced, which could be attributed to the optimization of the density and dispersion manner of the GQDs in the Bi2Te3 matrix. A maximum ZT of 0.55 is obtained at 425 K for the Bi2Te3/GQDs-20 nm, which is higher than that of Bi2Te3 without hybrid nanostrucure. This work provides insights for the structural design and synthesis of Bi2Te3-based hybrid thermoelectric materials, which will be important for future development of broadly functional material systems.
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Affiliation(s)
- Shuankui Li
- School of Advanced Materials, Peking University Shenzhen Graduate School , Shenzhen 518055, China
| | - Tianju Fan
- School of Advanced Materials, Peking University Shenzhen Graduate School , Shenzhen 518055, China
| | - Xuerui Liu
- School of Advanced Materials, Peking University Shenzhen Graduate School , Shenzhen 518055, China
| | - Fusheng Liu
- College of Materials Science and Engineering, Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials , Shenzhen 518060, China
| | - Hong Meng
- School of Advanced Materials, Peking University Shenzhen Graduate School , Shenzhen 518055, China
| | - Yidong Liu
- School of Advanced Materials, Peking University Shenzhen Graduate School , Shenzhen 518055, China
| | - Feng Pan
- School of Advanced Materials, Peking University Shenzhen Graduate School , Shenzhen 518055, China
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25
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Ma S, Zhou QY, Mu FY, Chen ZH, Ding XY, Zhang M, Shi G. Ratiometric fluorescence monitoring of cerebral Cu2+ based on coumarin-labeled DNA coupled with the Cu2+-induced oxidation of o-phenylenediamine. Analyst 2017; 142:3341-3345. [DOI: 10.1039/c7an01099k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A novel ratiometric fluorescence assay for cerebral Cu2+ has been developed based on coumarin-labeled single-stranded DNA coupled with the Cu2+-induced oxidation of o-phenylenediamine.
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Affiliation(s)
- Shishi Ma
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- China
| | - Qiao-Yu Zhou
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- China
| | - Fang-Ya Mu
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- China
| | - Zi-Han Chen
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- China
| | - Xu-Yin Ding
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- China
| | - Min Zhang
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- China
| | - Guoyue Shi
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- China
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26
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Shtepliuk I, Khranovskyy V, Yakimova R. Insights into the origin of the excited transitions in graphene quantum dots interacting with heavy metals in different media. Phys Chem Chem Phys 2017; 19:30445-30463. [DOI: 10.1039/c7cp04711h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Exploring graphene quantum dots (GQDs) is an attractive way to design novel optical and electrochemical sensors for fast and reliable detection of toxic heavy metals (HMs), such as Cd, Hg and Pb.
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Affiliation(s)
- Ivan Shtepliuk
- Department of Physics
- Chemistry and Biology
- Linköping University
- Linköping
- Sweden
| | | | - Rositsa Yakimova
- Department of Physics
- Chemistry and Biology
- Linköping University
- Linköping
- Sweden
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27
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Ma S, Qi YX, Jiang XQ, Chen JQ, Zhou QY, Shi G, Zhang M. Selective and Sensitive Monitoring of Cerebral Antioxidants Based on the Dye-Labeled DNA/Polydopamine Conjugates. Anal Chem 2016; 88:11647-11653. [DOI: 10.1021/acs.analchem.6b03216] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shishi Ma
- School
of Chemistry and Molecular Engineering and ‡School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yan-Xia Qi
- School
of Chemistry and Molecular Engineering and ‡School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Xiao-Qin Jiang
- School
of Chemistry and Molecular Engineering and ‡School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Jie-Qiong Chen
- School
of Chemistry and Molecular Engineering and ‡School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Qiao-Yu Zhou
- School
of Chemistry and Molecular Engineering and ‡School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Guoyue Shi
- School
of Chemistry and Molecular Engineering and ‡School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Min Zhang
- School
of Chemistry and Molecular Engineering and ‡School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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28
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Long Z, Fang DC, Ren H, Ouyang J, He L, Na N. Excited Oxidized-Carbon Nanodots Induced by Ozone from Low-Temperature Plasma to Initiate Strong Chemiluminescence for Fast Discrimination of Metal Ions. Anal Chem 2016; 88:7660-6. [DOI: 10.1021/acs.analchem.6b01499] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zi Long
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - De-Cai Fang
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Hong Ren
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jin Ouyang
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Lixin He
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Na Na
- Key Laboratory of Theoretical and Computational
Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China
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29
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Huang JJ, Rong MZ, Zhang MQ. Preparation of graphene oxide and polymer-like quantum dots and their one- and two-photon induced fluorescence properties. Phys Chem Chem Phys 2016; 18:4800-6. [DOI: 10.1039/c5cp06582h] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly fluorescent N-doped graphene oxide quantum dots (GOQDs) and polymer-like quantum dots (PQDs) were developed by one-step microwave assisted pyrolysis.
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Affiliation(s)
- Jia Jia Huang
- School of Chemical Engineering and Energy
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Min Zhi Rong
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- GD HPPC Lab
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou 510275
| | - Ming Qiu Zhang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- GD HPPC Lab
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou 510275
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30
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Zhou S, Xu H, Gan W, Yuan Q. Graphene quantum dots: recent progress in preparation and fluorescence sensing applications. RSC Adv 2016. [DOI: 10.1039/c6ra24349e] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
This paper reviews recent activities in the preparation and fluorescence sensing applications of graphene quantum dots.
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Affiliation(s)
- Shenghai Zhou
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
- Laboratory of Environmental Science and Technology
| | - Hongbo Xu
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
- Laboratory of Environmental Science and Technology
| | - Wei Gan
- School of Natural Sciences and Humanities
- Harbin Institute of Technology
- Shenzhen 518055
- China
- Laboratory of Environmental Science and Technology
| | - Qunhui Yuan
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Shenzhen 518055
- China
- Laboratory of Environmental Science and Technology
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31
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Xiong C, Liang W, Wang H, Zheng Y, Zhuo Y, Chai Y, Yuan R. In situ electro-polymerization of nitrogen doped carbon dots and their application in an electrochemiluminescence biosensor for the detection of intracellular lead ions. Chem Commun (Camb) 2016; 52:5589-92. [DOI: 10.1039/c6cc01078d] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Here, a sensitive electrochemiluminescence (ECL) biosensor using N doped carbon dots (N-CDs) as luminophores, and Pd–Au hexoctahedrons (Pd@Au HOHs) as enhancers, was developed for the detection of intracellular Pb2+.
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Affiliation(s)
- Chengyi Xiong
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Wenbin Liang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Haijun Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Yingning Zheng
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ying Zhuo
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Yaqin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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32
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33
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Maysinger D, Ji J, Hutter E, Cooper E. Nanoparticle-Based and Bioengineered Probes and Sensors to Detect Physiological and Pathological Biomarkers in Neural Cells. Front Neurosci 2015; 9:480. [PMID: 26733793 PMCID: PMC4683200 DOI: 10.3389/fnins.2015.00480] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 11/30/2015] [Indexed: 01/11/2023] Open
Abstract
Nanotechnology, a rapidly evolving field, provides simple and practical tools to investigate the nervous system in health and disease. Among these tools are nanoparticle-based probes and sensors that detect biochemical and physiological properties of neurons and glia, and generate signals proportionate to physical, chemical, and/or electrical changes in these cells. In this context, quantum dots (QDs), carbon-based structures (C-dots, grapheme, and nanodiamonds) and gold nanoparticles are the most commonly used nanostructures. They can detect and measure enzymatic activities of proteases (metalloproteinases, caspases), ions, metabolites, and other biomolecules under physiological or pathological conditions in neural cells. Here, we provide some examples of nanoparticle-based and genetically engineered probes and sensors that are used to reveal changes in protease activities and calcium ion concentrations. Although significant progress in developing these tools has been made for probing neural cells, several challenges remain. We review many common hurdles in sensor development, while highlighting certain advances. In the end, we propose some future directions and ideas for developing practical tools for neural cell investigations, based on the maxim "Measure what is measurable, and make measurable what is not so" (Galileo Galilei).
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Affiliation(s)
- Dusica Maysinger
- Department of Pharmacology and Therapeutics, McGill University Montreal, QC, Canada
| | - Jeff Ji
- Department of Pharmacology and Therapeutics, McGill University Montreal, QC, Canada
| | - Eliza Hutter
- Department of Pharmacology and Therapeutics, McGill University Montreal, QC, Canada
| | - Elis Cooper
- Department of Physiology, McGill University Montreal, QC, Canada
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34
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Guo R, Zhou S, Li Y, Li X, Fan L, Voelcker NH. Rhodamine-Functionalized Graphene Quantum Dots for Detection of Fe(3+) in Cancer Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2015; 7:23958-23966. [PMID: 26317667 DOI: 10.1021/acsami.5b06523] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A turn-on orange-red fluorescent nanosensor based on rhodamine B derivative-functionalized graphene quantum dots (RBD-GQDs) has been successfully synthesized for Fe(3+) detection with high sensitivity and selectivity. By connecting with GQDs, the water solubility, sensitivity, photostability, and biocompatibility of RBD are drastically improved. The most distinctive feature of the RBD-GQDs, which sets them apart from other previously reported fluorophores or GQDs, is that they with the detection limits as low as 0.02 μM are demonstrated as a Fe(3+) turn-on fluorescent nanosensor in cancer stem cells. Fe(3+) binding to such GQDs (RBD-GQDs-Fe(3+)) with orange-red fluorescence of 43% quantum yield were demonstrated to be the biomarkers for cancer stem cell imaging.
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Affiliation(s)
- Ruihua Guo
- Department of Chemistry, Beijing Normal University , Beijing 100875, P. R. China
| | - Shixin Zhou
- Department of Cell Biology, School of Basic Medicine, Peking University Health Science Center , Beijing 100191, P. R. China
| | - Yunchao Li
- Department of Chemistry, Beijing Normal University , Beijing 100875, P. R. China
| | - Xiaohong Li
- Department of Chemistry, Beijing Normal University , Beijing 100875, P. R. China
| | - Louzhen Fan
- Department of Chemistry, Beijing Normal University , Beijing 100875, P. R. China
| | - Nicolas H Voelcker
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia , Mawson Lakes, South Australia 5095, Australia
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35
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Park M, Ha HD, Kim YT, Jung JH, Kim SH, Kim DH, Seo TS. Combination of a Sample Pretreatment Microfluidic Device with a Photoluminescent Graphene Oxide Quantum Dot Sensor for Trace Lead Detection. Anal Chem 2015; 87:10969-75. [DOI: 10.1021/acs.analchem.5b02907] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Minsu Park
- Department
of Chemical and
Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Hyun Dong Ha
- Department
of Chemical and
Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Yong Tae Kim
- Department
of Chemical and
Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Jae Hwan Jung
- Department
of Chemical and
Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Shin-Hyun Kim
- Department
of Chemical and
Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Do Hyun Kim
- Department
of Chemical and
Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Tae Seok Seo
- Department
of Chemical and
Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
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36
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Hua M, Wang C, Qian J, Wang K, Yang Z, Liu Q, Mao H, Wang K. Preparation of graphene quantum dots based core-satellite hybrid spheres and their use as the ratiometric fluorescence probe for visual determination of mercury(II) ions. Anal Chim Acta 2015; 888:173-81. [DOI: 10.1016/j.aca.2015.07.042] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 07/13/2015] [Accepted: 07/14/2015] [Indexed: 01/12/2023]
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37
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Yu N, Peng H, Xiong H, Wu X, Wang X, Li Y, Chen L. Graphene quantum dots combined with copper(II) ions as a fluorescent probe for turn-on detection of sulfide ions. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1548-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Fan T, Zeng W, Tang W, Yuan C, Tong S, Cai K, Liu Y, Huang W, Min Y, Epstein AJ. Controllable size-selective method to prepare graphene quantum dots from graphene oxide. NANOSCALE RESEARCH LETTERS 2015; 10:55. [PMID: 25852352 PMCID: PMC4385023 DOI: 10.1186/s11671-015-0783-9] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 01/24/2015] [Indexed: 05/27/2023]
Abstract
We demonstrated one-step method to fabricate two different sizes of graphene quantum dots (GQDs) through chemical cutting from graphene oxide (GO), which had many advantages in terms of simple process, low cost, and large scale in manufacturing with higher production yield comparing to the reported methods. Several analytical methods were employed to characterize the composition and morphology of the resultants. Bright blue luminescent GQDs were obtained with a produced yield as high as 34.8%. Moreover, how the different sizes affect fluorescence wavelength mechanism was investigated in details.
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Affiliation(s)
- Tianju Fan
- />Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China
| | - Wenjin Zeng
- />Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China
| | - Wei Tang
- />Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China
| | - Chunqiu Yuan
- />Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China
| | - Songzhao Tong
- />Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China
| | - Kaiyu Cai
- />Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China
| | - Yidong Liu
- />State Key Laboratory of Organic Electronics and Information Displays and Fountain Global Photoelectric Technology Co. Ltd, 2 Xinyue Road, Yancheng, Jiangsu 224000 China
| | - Wei Huang
- />Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China
- />State Key Laboratory of Organic Electronics and Information Displays and Fountain Global Photoelectric Technology Co. Ltd, 2 Xinyue Road, Yancheng, Jiangsu 224000 China
| | - Yong Min
- />Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210046 China
- />Department of Physics and Chemistry & Biochemistry, The Ohio State University, Columbus, OH 43210 USA
| | - Arthur J Epstein
- />Department of Physics and Chemistry & Biochemistry, The Ohio State University, Columbus, OH 43210 USA
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39
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Molecularly engineered graphene surfaces for sensing applications: A review. Anal Chim Acta 2015; 859:1-19. [DOI: 10.1016/j.aca.2014.07.031] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 07/09/2014] [Accepted: 07/20/2014] [Indexed: 11/23/2022]
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40
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Zhou X, Pan Y, Xu J, Wang A, Wu S, Shen J. The carbonization of polyethyleneimine: facile fabrication of N-doped graphene oxide and graphene quantum dots. RSC Adv 2015. [DOI: 10.1039/c5ra25173g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, N-doped graphene oxide (N-GO) and graphene quantum dots (N-GQDs) were synthesized by the carbonization of branched polyethyleneimine (PEI) in the presence of H2O2.
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Affiliation(s)
- Xi Zhou
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Yumei Pan
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Jian Xu
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Anqi Wang
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Shishan Wu
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Jian Shen
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
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41
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Zhao X, Gao J, He X, Cong L, Zhao H, Li X, Tan F. DNA-modified graphene quantum dots as a sensing platform for detection of Hg2+in living cells. RSC Adv 2015. [DOI: 10.1039/c5ra06984j] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile method for detection of Hg2+in living cells based on DNA modified graphene quantum dots.
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Affiliation(s)
- Xin Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Jinsuo Gao
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Xin He
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Longchao Cong
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Huimin Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Xiaoyu Li
- School of Life Science and Biotechnology
- Dalian University of Technology
- Dalian 116024
- China
| | - Feng Tan
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
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42
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Deng J, Lu Q, Li H, Zhang Y, Yao S. Large scale preparation of graphene quantum dots from graphite oxide in pure water via one-step electrochemical tailoring. RSC Adv 2015. [DOI: 10.1039/c4ra16805d] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel electrochemical synthesis for graphene quantum dots (GQD) on a large scale from graphite oxide (GO) in pure water has been proposed.
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Affiliation(s)
- Jianhui Deng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- China
| | - Qiujun Lu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- China
| | - Haitao Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- China
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- China
| | - Shouzuo Yao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- China
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43
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Qi YX, Zhang M, Zhu A, Shi G. Terbium(iii)/gold nanocluster conjugates: the development of a novel ratiometric fluorescent probe for mercury(ii) and a paper-based visual sensor. Analyst 2015; 140:5656-61. [DOI: 10.1039/c5an00802f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A novel ratiometric fluorescent probe was developed for detection of mercury in rat tissues based on terbium(iii)/gold nanocluster conjugates. Meanwhile, a paper-based visual sensor for detection of Hg2+ with the naked eye was designed.
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Affiliation(s)
- Yan-Xia Qi
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Min Zhang
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Anwei Zhu
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Guoyue Shi
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
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44
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Li S, Li Y, Cao J, Zhu J, Fan L, Li X. Sulfur-doped graphene quantum dots as a novel fluorescent probe for highly selective and sensitive detection of Fe(3+). Anal Chem 2014; 86:10201-7. [PMID: 25280346 DOI: 10.1021/ac503183y] [Citation(s) in RCA: 315] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Sulfur-doped graphene quantum dots (S-GQDs) with stable blue-green fluorescence were synthesized by one-step electrolysis of graphite in sodium p-toluenesulfonate aqueous solution. Compared with GQDs, the S-GQDs drastically improved the electronic properties and surface chemical reactivities, which exhibited a sensitive response to Fe(3+). Therefore, the S-GQDs were used as an efficient fluorescent probe for highly selective detection of Fe(3+). Upon increasing of Fe(3+) concentration ranging from 0.01 to 0.70 μM, the fluorescence intensity of S-GQDs gradually decreased and reached a plateau at 0.90 μM. The difference in the fluorescence intensity of S-GQDs before and after adding Fe(3+) was proportional to the concentration of Fe(3+), and the calibration curve displayed linear regions over the range of 0-0.70 μM. The detection limit was 4.2 nM. Finally, this novel fluorescent probe was successfully applied to the direct analysis of Fe(3+) in human serum, which presents potential applications in clinical diagnosis and may open a new way to the design of effective fluorescence probes for other biologically related targets.
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Affiliation(s)
- Shuhua Li
- Department of Chemistry, Beijing Normal University , Beijing 100875, People's Republic of China
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45
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Qu Z, Zhang M, Zhou T, Shi G. A Single‐Wavelength‐Emitting Ratiometric Probe Based on Phototriggered Fluorescence Switching of Graphene Quantum Dots. Chemistry 2014; 20:13777-82. [DOI: 10.1002/chem.201404160] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Zhi‐bei Qu
- Department of Chemistry, East China Normal University, Dongchuan RD 500, Shanghai, 200241 (P. R. China), Fax: (+86) 21‐54340043
| | - Min Zhang
- Department of Chemistry, East China Normal University, Dongchuan RD 500, Shanghai, 200241 (P. R. China), Fax: (+86) 21‐54340043
| | - Tianshu Zhou
- Department of Environmental Science, East China Normal University, Dongchuan RD 500, Shanghai, 200241 (P. R. China)
| | - Guoyue Shi
- Department of Chemistry, East China Normal University, Dongchuan RD 500, Shanghai, 200241 (P. R. China), Fax: (+86) 21‐54340043
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46
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Fluorescent carbon nanoparticles for the fluorescent detection of metal ions. Biosens Bioelectron 2014; 63:61-71. [PMID: 25058940 DOI: 10.1016/j.bios.2014.07.018] [Citation(s) in RCA: 201] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/04/2014] [Accepted: 07/04/2014] [Indexed: 01/08/2023]
Abstract
Fluorescent carbon nanoparticles (F-CNPs) as a new kind of fluorescent nanoparticles, have recently attracted considerable research interest in a wide range of applications due to their low-cost and good biocompatibility. The fluorescent detection of metal ions is one of the most important applications. In this review, we first present the general detection mechanism of F-CNPs for the fluorescent detection of metal ions, including fluorescence turn-off, fluorescence turn-on, fluorescence resonance energy transfer (FRET) and ratiometric response. We then focus on the recent advances of F-CNPs in the fluorescent detection of metal ions, including Hg(2+), Cu(2+), Fe(3+), and other metal ions. Further, we discuss the research trends and future prospects of F-CNPs. We envision that more novel F-CNPs-based nanosensors with more accuracy and robustness will be widely used to assay and remove various metal ions, and there will be more practical applications in coming years.
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