151
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Facile synthesis of sulfur and nitrogen codoped graphene quantum dots for optical sensing of Hg and Ag ions. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.06.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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152
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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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153
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Pincher DWM, Bader CA, Hayball JD, Plush SE, Sweetman MJ. Graphene Quantum Dot Embedded Hydrogel for Dissolved Iron Sensing. ChemistrySelect 2019. [DOI: 10.1002/slct.201901779] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Daniel W. M. Pincher
- School of Pharmacy and Medical SciencesUniversity of South Australia Adelaide SA 5000 Australia
| | - Christie A. Bader
- School of Pharmacy and Medical SciencesUniversity of South Australia Adelaide SA 5000 Australia
| | - John D. Hayball
- School of Pharmacy and Medical SciencesUniversity of South Australia Adelaide SA 5000 Australia
- Experimental Therapeutics LaboratoryCancer Research Institute University of South Australia Adelaide SA 5000 Australia
- The Robinson Research InstituteAdelaide Medical School Cancer Research InstituteUniversity of Adelaide Adelaide SA 5000 Australia
| | - Sally E. Plush
- School of Pharmacy and Medical SciencesUniversity of South Australia Adelaide SA 5000 Australia
- Future Industries InstituteUniversity of South Australia Adelaide SA 5000 Australia
| | - Martin J. Sweetman
- School of Pharmacy and Medical SciencesUniversity of South Australia Adelaide SA 5000 Australia
- Experimental Therapeutics LaboratoryCancer Research Institute University of South Australia Adelaide SA 5000 Australia
- Future Industries InstituteUniversity of South Australia Adelaide SA 5000 Australia
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154
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Yap SHK, Chan KK, Zhang G, Tjin SC, Yong KT. Carbon Dot-functionalized Interferometric Optical Fiber Sensor for Detection of Ferric Ions in Biological Samples. ACS APPLIED MATERIALS & INTERFACES 2019; 11:28546-28553. [PMID: 31309830 DOI: 10.1021/acsami.9b08934] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This work reports an interferometric optical microfiber sensor functionalized with nitrogen- and sulfur-codoped carbon dots (CDs) for the detection of ferric ions (Fe3+). Compared to other CD-based ferric ion sensors, the sensing mechanism of this presented sensor is dependent on the refractive index modulations due to selective Fe3+ adsorption onto the CD binding sites at the tapered region. This is the first study in which CD-based sensing was performed at the solid phase as a chelator, which does not rely on its fluorescence properties. The detection performance of the proposed sensor is not only comparable to a conventional fluorescence-based CD nanoprobe sensor but also capable of delivering quantitative analysis results and ease of translation to a sensor device for on-site detection. The presented sensor exhibits Fe3+ detection sensitivity of 0.0061 nm/(μg/L) in the linear detection range between 0 and 300 μg/L and a detection limit of 0.77 μg/L based on the Langmuir isotherm model. Finally, the potential use of the CD-functionalized optical microfiber sensor in the real environmental and biological Fe3+ monitoring applications has also been validated in this work.
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Affiliation(s)
- Stephanie Hui Kit Yap
- School of Electrical and Electronic Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Kok Ken Chan
- School of Electrical and Electronic Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Gong Zhang
- School of Electrical and Electronic Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Swee Chuan Tjin
- School of Electrical and Electronic Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
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155
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Mishra P, Bhat BR. Calcium‐Induced Photoluminescence Quenching of Graphene Quantum Dots in Hard Water: A Quick Turn‐Off Sensing Approach. ChemistrySelect 2019. [DOI: 10.1002/slct.201901850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Praveen Mishra
- Catalysis and Materials LaboratoryDepartment of ChemistryNational Institute of Technology Karnataka, Surathkal Mangalore 575025 India
| | - Badekai Ramachandra Bhat
- Catalysis and Materials LaboratoryDepartment of ChemistryNational Institute of Technology Karnataka, Surathkal Mangalore 575025 India
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156
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Lu M, Zhou L. One-step sonochemical synthesis of versatile nitrogen-doped carbon quantum dots for sensitive detection of Fe2+ ions and temperature in vitro. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 101:352-359. [DOI: 10.1016/j.msec.2019.03.109] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/28/2019] [Accepted: 03/28/2019] [Indexed: 01/26/2023]
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157
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Rhodamine probes for Fe3+: theoretical calculation for specific recognition and instant fluorescent bioimaging. Future Med Chem 2019; 11:1859-1869. [DOI: 10.4155/fmc-2019-0077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Aim: To overcome the existing difficulty in distinguishing Fe(III) from Fe(II), rhodamine-containing Fe3+ probes, giving off different fluorescence responses to ferric and ferrous ions, were synthesized. Materials & methods: Color change in Fe3+ recognition, accompanying spirolactam opening–closing, could be used for ‘naked-eye’ detection. Theoretical calculations revealed the possible Fe3+-probe combination mechanism. Results: Apart from the probes’ specific response toward Fe3+, the Fe3+-probe demonstrated highly quantitative relationships in fluorescence titration, instant labeling and dynamic tracking of intracellular Fe3+ in bioimaging. Conclusion: Cytotoxity and bioimaging in living L929 suggested the probes’ future applications as real-time detection methods for Fe3+ in clinical diagnosis. Instant and time-lapse imagings, based on fluorescence-time stability of Fe3+-probe, enables the dynamic labeling and tracking of Fe3+ in living systems.
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158
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Song F, Yang C, Liu H, Gao Z, Zhu J, Bao X, Kan C. Dual-binding pyridine and rhodamine B conjugate derivatives as fluorescent chemosensors for ferric ions in aqueous media and living cells. Analyst 2019; 144:3094-3102. [PMID: 30920566 DOI: 10.1039/c8an01915k] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two new pyridine-type rhodamine B chemosensors (RBPO and RBPF) used to detect Fe3+ have been designed and synthesized, and the sensing behavior towards various metal ions was evaluated via UV-vis and fluorescence spectroscopic techniques. Both RBPO and RBPF not only have good spectral responses to Fe3+ in an EtOH/H2O solution (3 : 1, v/v, HEPES, 0.5 mM, pH = 7.33) with low detection limits and high binding constants, but also suffer from less interference from common metal cations. The two chemosensors are further proven to be practical in sensitively monitoring trace Fe3+ in real water specimens. Intracellular imaging applications demonstrated that RBPO and RBPF can be used as two fluorescent chemosensors for the detection of Fe3+ in living human breast adenocarcinoma (MCF-7) cells.
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Affiliation(s)
- Fan Song
- College of Science, Nanjing Forestry University, Nanjing 210037, China.
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159
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Wei G, Zhao Z, Du J, Li P, Sun Z, Huo L, Gao Y. Reed-derived fluorescent carbon dots as highly selective probes for detecting Fe 3+ and excellent cell-imaging agents. RSC Adv 2019; 9:21715-21723. [PMID: 35518891 PMCID: PMC9066616 DOI: 10.1039/c9ra01841g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/22/2019] [Indexed: 12/04/2022] Open
Abstract
A kind of highly selective and sensitive fluorescent probe for detecting Fe3+, carbon dots (CDs), was prepared with renewable reed naturally containing C, N, O, and S elements as a green and eco-friendly carbon source by a simple hydrothermal process. The fluorescence of CDs without purification and surface modification can be quenched by Fe3+ in a wide concentration range of 0 to 362 μmol L-1 (concentration of Fe3+), with detection limits as low as 0.014 μmol L-1 in 0-50 μmol L-1. Characterizations, such as TEM, XPS, Raman and FTIR, confirmed that the static quenching mechanism involved the generation of non-luminescent complexes between Fe3+ and functional groups (carboxyl group, sulfur-oxyl group and hydroxyl group) on the surface of CDs and with the aggregation of CDs. More importantly, CDs had good biocompatibility and nontoxicity according to an MTT cell-viability assay, and cells labeled with CDs emitted blue, green and red color fluorescence. Thus, the static quenching mechanism was confirmed. So, this reed-derived natural CD solution can be utilized in detecting Fe3+, culture cells, and cell imaging.
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Affiliation(s)
- Guili Wei
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University Baoding 071002 Hebei China
| | - Ziqiang Zhao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University Baoding 071002 Hebei China
| | - Jie Du
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University Baoding 071002 Hebei China
| | - Pan Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University Baoding 071002 Hebei China
| | - Zhuxing Sun
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University Baoding 071002 Hebei China
| | - Li Huo
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University Baoding 071002 Hebei China
| | - Yongjun Gao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University Baoding 071002 Hebei China
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160
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Dalapati R, Biswas S. Aqueous Phase Sensing of Fe 3+ and Ascorbic Acid by a Metal-Organic Framework and Its Implication in the Construction of Multiple Logic Gates. Chem Asian J 2019; 14:2822-2830. [PMID: 31192533 DOI: 10.1002/asia.201900546] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/10/2019] [Indexed: 11/07/2022]
Abstract
A new HfIV -based metal-organic framework with UiO-66 topology was synthesized via a one-step solvothermal method by using 3-methyl-4-phenylthieno[2,3-b]thiophene-2,5-dicarboxylic acid (H2 MPTDC) as a ligand. The MOF material showed a high stability in a broad pH range (from pH 2 to pH 12) in an aqueous medium. The presence of hydrophobic methyl and phenyl substituents in the carboxylic acid ligand and strong Hf-O bond play crucial roles in its stability. The new MOF material was systematically characterized by various techniques such as XRPD, N2 sorption, thermogravimetric analyses and FT-IR spectroscopy. The photophysical properties of the MOF material were also examined by steady-state and time-resolved fluorescence studies. It was observed that the blue fluorescence of the MOF material was selectively quenched in the presence of Fe3+ ion in pure aqueous medium. A mechanistic study disclosed that quenching occurs via a strong inner filter effect (IFE) arising from Fe3+ ion in aqueous medium. Interestingly, the fluorescence of the MOF material can be recovered by elimination of the IFE of Fe3+ ion via reduction of Fe3+ ion by ascorbic acid (AA). Based on the fluorescence recovery by AA, a MOF based on-off-on probe was developed for the sensing of Fe3+ ion and AA in aqueous medium. Inspired by this reversible sensing event, we demonstrate basic (NOT, OR, YES, INHIBIT and IMP) and higher integrated logic operations utilizing this fluorescent MOF. This MOF-based logic systems could be potentially used for next-generation logic-gate based analytical applications as well as for the detection and discrimination of targeted molecules in various complex domains.
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Affiliation(s)
- Rana Dalapati
- Department of Chemistry, Indian Institute of Technology Guwahati, 781039, Assam, India
| | - Shyam Biswas
- Department of Chemistry, Indian Institute of Technology Guwahati, 781039, Assam, India
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161
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Liu B, Ren X, Chen L, Ma X, Chen Q, Sun Q, Zhang L, Si P, Ci L. High efficient adsorption and storage of iodine on S, N co-doped graphene aerogel. JOURNAL OF HAZARDOUS MATERIALS 2019; 373:705-715. [PMID: 30959284 DOI: 10.1016/j.jhazmat.2019.04.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 03/31/2019] [Accepted: 04/01/2019] [Indexed: 06/09/2023]
Abstract
High efficient adsorption of radioiodine in nuclear waste has attracted extensive attentions all over the world. In this work, we fabricated sulfur and nitrogen co-doped graphene aerogels (SN-GA) through one-step hydrothermal method, and investigated its iodine adsorption behavior including adsorption kinetics and isotherms in water. Our results reveal that SN-GA exhibits a 3D porous architecture with thiophene-S, oxidized-S, pyridine-N, pyrrole-N and graphite-N co-doped into the sp2 carbon frameworks. The adsorption experiment showed SN-GA has a maximum iodine adsorption capacity of 999 mg g-1 determined by Langmuir isotherm, and the adsorption process could be better described by the pseudo-second-order model.
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Affiliation(s)
- Beibei Liu
- SDU& Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Xiaohua Ren
- SDU& Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Long Chen
- SDU& Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Xiaoxin Ma
- SDU& Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Qiong Chen
- SDU& Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Qidi Sun
- SDU& Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Lin Zhang
- SDU& Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Pengchao Si
- SDU& Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China.
| | - Lijie Ci
- SDU& Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China.
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162
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Zhang YM, He JX, Zhu W, Li YF, Fang H, Yao H, Wei TB, Lin Q. Novel pillar[5]arene-based supramolecular organic framework gel for ultrasensitive response Fe3+ and F− in water. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:62-69. [DOI: 10.1016/j.msec.2019.02.094] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/15/2019] [Accepted: 02/23/2019] [Indexed: 02/08/2023]
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163
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Duan Y, Huang Y, Chen S, Zuo W, Shi B. Cu-Doped Carbon Dots as Catalysts for the Chemiluminescence Detection of Glucose. ACS OMEGA 2019; 4:9911-9917. [PMID: 31460081 PMCID: PMC6649278 DOI: 10.1021/acsomega.9b00738] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 05/10/2019] [Indexed: 05/24/2023]
Abstract
Development of metal-doped carbon dots (CDs) to effectively modulate their electronic properties and surface chemical reactivities is still in its early stage. In this paper, a facile solid-phase synthesis strategy was developed to synthesize Cu-doped CDs (Cu-CDs) using citric acid as the carbon source and Cu(NO3)2·3H2O as the dopant, respectively. The as-prepared Cu-CDs exhibited superior peroxidase-like activity to horseradish peroxidase and were stable under a wide range of pH and temperatures. Consequently, the Cu-CD-based chemiluminescence sensing was applied to sensitively detect glucose with a low detection limit of 0.32 μM, and the recoveries and the relative standard deviation of the serum sample are 87.2-112.2 and 8.16% (n = 6), respectively. Notably, the proposed chemiluminescence sensing was also successfully applied for label-free detection of glucose in complex biological samples, which envisioned its potential applications in clinical diagnosis and other analytical assays.
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Affiliation(s)
- Yan Duan
- Key
Laboratory of Regional Ecological Environment Analysis and Pollution
Control of West Guangxi, College of Chemistry and Environmental Engineering, Baise University, Baise 533000, China
| | - Yijun Huang
- Key
Laboratory of Regional Ecological Environment Analysis and Pollution
Control of West Guangxi, College of Chemistry and Environmental Engineering, Baise University, Baise 533000, China
- State
Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials
Processing, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Shengyu Chen
- Key
Laboratory of Regional Ecological Environment Analysis and Pollution
Control of West Guangxi, College of Chemistry and Environmental Engineering, Baise University, Baise 533000, China
| | - Weiyuan Zuo
- Key
Laboratory of Regional Ecological Environment Analysis and Pollution
Control of West Guangxi, College of Chemistry and Environmental Engineering, Baise University, Baise 533000, China
| | - Bingfang Shi
- Key
Laboratory of Regional Ecological Environment Analysis and Pollution
Control of West Guangxi, College of Chemistry and Environmental Engineering, Baise University, Baise 533000, China
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164
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Semeniuk M, Yi Z, Poursorkhabi V, Tjong J, Jaffer S, Lu ZH, Sain M. Future Perspectives and Review on Organic Carbon Dots in Electronic Applications. ACS NANO 2019; 13:6224-6255. [PMID: 31145587 DOI: 10.1021/acsnano.9b00688] [Citation(s) in RCA: 139] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Over the span of the past decade, carbon dots (CDs) synthesized from renewable organic resources (organic CDs) have gathered a considerable amount of attention for their photoluminescent properties. This review will focus on organic CDs synthesized using clean chemistry and conventional synthetic chemistry from organic sources and their fluorescence mechanisms, such as quantum confinement effect and surface/edge defects, before outlining their performance in electronic applications, including organic photovoltaic devices, organic light-emitting devices, biosensors, supercapacitors, and batteries. The various organic resources and methods of organic CDs synthesis are briefly covered. Many challenges remain before the adoption of CDs can become widespread; their characterization, structure, functionality, and exact photoluminescent mechanism all require additional research. This review aims to summarize the current research outcomes and highlight the area where further research is needed to fully use these materials.
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Affiliation(s)
- Maria Semeniuk
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
| | - Zhihui Yi
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
| | - Vida Poursorkhabi
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
| | - Jimi Tjong
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
| | - Shaffiq Jaffer
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
| | - Zheng-Hong Lu
- Department of Material Science and Engineering , University of Toronto , 184 College Street , Toronto , Ontario M5S 3A1 , Canada
| | - Mohini Sain
- Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry , University of Toronto , 33 Willcocks Street , Toronto , Ontario M5S 3B3 , Canada
- Department of Mechanical and Industrial Engineering , University of Toronto , 5 King's College Road , Toronto , Ontario M5S 3G8 , Canada
- Department of Mechanical Engineering , Beijing University of Chemical Technology (BUCT) , 100029 Beijing , P.R. China
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165
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Wang L, Li Y, Wang Y, Kong W, Lu Q, Liu X, Zhang D, Qu L. Chlorine-Doped Graphene Quantum Dots with Enhanced Anti- and Pro-Oxidant Properties. ACS APPLIED MATERIALS & INTERFACES 2019; 11:21822-21829. [PMID: 31119931 DOI: 10.1021/acsami.9b03194] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Production or elimination of highly reactive oxygen species is critical in antioxidant, photodynamic, therapeutic, and antibacterial applications. Recent studies have demonstrated that graphene quantum dots (GQDs) possess anti- and pro-oxidant properties simultaneously. However, their efficiency is low. Here, we report chlorine-doped GQDs (Cl-GQDs) with a tunable Cl doping amount and improved anti- and pro-oxidant activities. The scavenging performance and the free radical-produced efficiency of Cl-GQDs are about 7-fold and 3-fold, respectively, higher than those of the undoped GQDs. Meanwhile, Cl-GQDs are considered to be promising for antibacterial applications because of their enhanced singlet oxygen generating ability. We hope that this study could provide a new strategy to develop nanomaterials for application in the anti- and pro-oxidant field.
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Affiliation(s)
- Lifeng Wang
- School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
| | - Yan Li
- School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
| | - Yingmin Wang
- School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
| | - Wenhui Kong
- School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
| | - Qipeng Lu
- School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
| | - Xiaoguang Liu
- School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
| | - Dawei Zhang
- School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
| | - Liangti Qu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry , Beijing Institute of Technology , Beijing 100081 , P. R. China
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166
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Zhang YP, Ma JM, Yang YS, Ru JX, Liu XY, Ma Y, Guo HC. Synthesis of nitrogen-doped graphene quantum dots (N-GQDs) from marigold for detection of Fe 3+ ion and bioimaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 217:60-67. [PMID: 30927572 DOI: 10.1016/j.saa.2019.03.044] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 03/10/2019] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
Abstract
Graphene quantum dots (GQDs) are synthesized by the method of high-temperature pyrolysis from marigold granules and subsequently nitrogen-doped graphene quantum dots (N-GQDs) are synthesized from ethylenediamine by hydrothermal treatment, which shows a strong blue emission with 7.84% quantum yield (QY). This will be used in detection of Fe3+ in water environments and the field of bioimaging.
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Affiliation(s)
- Ying-Peng Zhang
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
| | - Ji-Mei Ma
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Yun-Shang Yang
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
| | - Jia-Xi Ru
- State Key Laboratory of Veterinary Etiological Biology and Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
| | - Xiao-Yu Liu
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Ying Ma
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Hui-Chen Guo
- State Key Laboratory of Veterinary Etiological Biology and Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
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167
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Cheng C, Xing M, Wu Q. A universal facile synthesis of nitrogen and sulfur co-doped carbon dots from cellulose-based biowaste for fluorescent detection of Fe3+ ions and intracellular bioimaging. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:611-619. [DOI: 10.1016/j.msec.2019.02.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 01/23/2019] [Accepted: 02/01/2019] [Indexed: 11/17/2022]
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168
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Santangelo MF, Shtepliuk I, Filippini D, Puglisi D, Vagin M, Yakimova R, Eriksson J. Epitaxial Graphene Sensors Combined with 3D-Printed Microfluidic Chip for Heavy Metals Detection. SENSORS 2019; 19:s19102393. [PMID: 31130608 PMCID: PMC6567039 DOI: 10.3390/s19102393] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/13/2019] [Accepted: 05/22/2019] [Indexed: 01/17/2023]
Abstract
In this work, we investigated the sensing performance of epitaxial graphene on Si-face 4H-SiC (EG/SiC) for liquid-phase detection of heavy metals (e.g., Pb and Cd), showing fast and stable response and low detection limit. The sensing platform proposed includes 3D-printed microfluidic devices, which incorporate all features required to connect and execute lab-on-chip (LOC) functions. The obtained results indicate that EG exhibits excellent sensing activity towards Pb and Cd ions. Several concentrations of Pb2+ solutions, ranging from 125 nM to 500 µM, were analyzed showing Langmuir correlation between signal and Pb2+ concentrations, good stability, and reproducibility over time. Upon the simultaneous presence of both metals, sensor response is dominated by Pb2+ rather than Cd2+ ions. To explain the sensing mechanisms and difference in adsorption behavior of Pb2+ and Cd2+ ions on EG in water-based solutions, we performed van-der-Waals (vdW)-corrected density functional theory (DFT) calculations and non-covalent interaction (NCI) analysis, extended charge decomposition analysis (ECDA), and topological analysis. We demonstrated that Pb2+ and Cd2+ ions act as electron-acceptors, enhancing hole conductivity of EG, due to charge transfer from graphene to metal ions, and Pb2+ ions have preferential ability to binding with graphene over cadmium. Electrochemical measurements confirmed the conductometric results, which additionally indicate that EG is more sensitive to lead than to cadmium.
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Affiliation(s)
- Maria Francesca Santangelo
- Applied Sensors Science, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
| | - Ivan Shtepliuk
- Semiconductor Materials, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
| | - Daniel Filippini
- Optical Devices Laboratory, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
| | - Donatella Puglisi
- Applied Sensors Science, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
| | - Mikhail Vagin
- Division of Physics and Electronics, Department of Science and Technology, Physics and Electronics-ITN, Linköping University, SE-58183 Linköping, Sweden.
| | - Rositsa Yakimova
- Semiconductor Materials, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
| | - Jens Eriksson
- Applied Sensors Science, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
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169
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Yang Y, Zou T, Wang Z, Xing X, Peng S, Zhao R, Zhang X, Wang Y. The Fluorescent Quenching Mechanism of N and S Co-Doped Graphene Quantum Dots with Fe 3+ and Hg 2+ Ions and Their Application as a Novel Fluorescent Sensor. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E738. [PMID: 31086109 PMCID: PMC6566331 DOI: 10.3390/nano9050738] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 01/29/2023]
Abstract
The fluorescence intensity of N, S co-doped graphene quantum dots (N, S-GQDs) can be quenched by Fe3+ and Hg2+. Density functional theory (DFT) simulation and experimental studies indicate that the fluorescence quenching mechanisms for Fe3+ and Hg2+ detection are mainly attributed to the inner filter effect (IFE) and dynamic quenching process, respectively. The electronegativity difference between C and doped atoms (N, S) in favor to introduce negative charge sites on the surface of N, S-GQDs leads to charge redistribution. Those negative charge sites facilitate the adsorption of cations on the N, S-GQDs' surface. Atomic population analysis results show that some charge transfer from Fe3+ and Hg2+ to N, S-GQDs, which relate to the fluorescent quenching of N, S-GQDs. In addition, negative adsorption energy indicates the adsorption of Hg2+ and Fe2+ is energetically favorable, which also contributes to the adsorption of quencher ions. Blue fluorescent N, S-GQDs were synthesized by a facile one-pot hydrothermal treatment. Fluorescent lifetime and UV-vis measurements further validate the fluorescent quenching mechanism is related to the electron transfer dynamic quenching and IFE quenching. The as-synthesized N, S-GQDs were applied as a fluorescent probe for Fe3+ and Hg2+ detection. Results indicate that N, S-GQDs have good sensitivity and selectivity on Fe3+ and Hg2+ with a detection limit as low as 2.88 and 0.27 nM, respectively.
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Affiliation(s)
- Yue Yang
- Department of Physics, Yunnan University, Kunming 650091, China.
| | - Tong Zou
- School of Materials Science and Engineering, Yunnan University, Kunming 650091, China.
| | - Zhezhe Wang
- Department of Physics, Yunnan University, Kunming 650091, China.
| | - Xinxin Xing
- Department of Physics, Yunnan University, Kunming 650091, China.
| | - Sijia Peng
- School of Materials Science and Engineering, Yunnan University, Kunming 650091, China.
| | - Rongjun Zhao
- Department of Physics, Yunnan University, Kunming 650091, China.
| | - Xu Zhang
- School of Materials Science and Engineering, Yunnan University, Kunming 650091, China.
| | - Yude Wang
- School of Materials Science and Engineering, Yunnan University, Kunming 650091, China.
- Key Lab of Quantum Information of Yunnan Province, Yunnan University, Kunming 650091, China.
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170
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Song F, Shao X, Zhu J, Bao X, Du L, Kan C. Reversible “turn-off-on” fluorescence response of Fe(III) towards Rhodamine B based probe in vivo and plant tissues. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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171
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Feng RQ, Yuan ZY, Ren TZ. A facile hydrothermal method for preparation of fluorescent carbon dots on application of Fe 3+ and fingerprint detection. Methods Appl Fluoresc 2019; 7:035001. [PMID: 30893652 DOI: 10.1088/2050-6120/ab11a3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The carbon dots (CDs) was prepared by a facile hydrothermal treatment of citric acid and glycine at 180 °C. The CDs at around 3.2 nm was collected after filtration and dialysis. The sample displayed green fluorescence (G-CDs) with a quantum yield of 3.7% in high concentration and the strongest emission peak was at 545 nm under the excitation wavelength of 480 nm; the blue fluorescence CDs (B-CDs) with a quantum yield of 29.8% was obtained after diluted either in solution or in powder, the strongest emission peak was located at 475 nm under the excitation wavelength of 380 nm. The G-CDs possessed a high selectivity to Fe3+, which was in a linear range of 0-3.5 μM with the detection limit of 0.21 μM. The CDs powder with blue fluorescence at a relative low content was obtained and adaptable for the fingerprint detection on substrates of litmus paper, resin tabletop, glass, and orange plastic ruler.
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Affiliation(s)
- Rui-Qi Feng
- School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
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172
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Guan XW, Lin Q, Zhang YM, Wei TB, Wang J, Fan YQ, Yao H. Pillar[5]arene-based spongy supramolecular polymer gel and its properties in multi-responsiveness, dye sorption, ultrasensitive detection and separation of Fe 3. SOFT MATTER 2019; 15:3241-3247. [PMID: 30916674 DOI: 10.1039/c8sm02482k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Herein, a novel way to design and construct multi-functional spongy supramolecular polymer gels through an easy to make tripodal guest (TA) and a naphthalimide functionalized-pillar[5]arene host (AP5) has been developed. According to this approach, a novel pillar[5]arene-based supramolecular polymer gel (SHG) was constructed via multi-non-covalent interactions such as host-guest inclusion, C-Hπ, ππ and hydrogen bonds and so on. Interestingly, the SHG exhibits a spongy structure and strong aggregation induced emission (AIE). Furthermore, the SHG also exhibited multi-responsiveness toward outer stimuli such as heating-cooling, pH, competitive agents and mechanical. More importantly, the SHG xerogel shows separation properties for Fe3+, methyl orange, methylene blue and sudan I dyes. The separation rates of SHG xerogel for Fe3+ ions and organic dyes can reach up to 99.8%. Simultaneously, the SHG could ultrasensitively detect Fe3+ (LOD is 0.9 nM). In addition, a thin film based on SHG was also prepared, which was confirmed to be a convenient test kit for detecting Fe3+.
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Affiliation(s)
- Xiao-Wen Guan
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China.
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173
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Green synthesis of carbon dots using the flowers of Osmanthus fragrans (Thunb.) Lour. as precursors: application in Fe 3+ and ascorbic acid determination and cell imaging. Anal Bioanal Chem 2019; 411:2715-2727. [PMID: 30941477 DOI: 10.1007/s00216-019-01712-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/03/2019] [Accepted: 02/25/2019] [Indexed: 02/06/2023]
Abstract
In this work, dried flowers of Osmanthus fragrans Lour. were applied as green precursors to synthesize carbon dots (CDs) by a green hydrothermal method for the first time. The CDs showed strong blue fluorescence at 410 nm under 340-nm excitation with a quantum yield of approximately 18.53%. Furthermore, the CDs were applied for the sensitive detection of Fe3+. The linear response of Fe3+ ranged from 10 nM to 50 μM with a limit of detection as low as 5 nM. In addition, other ions were used as competitive substances to explore the selectivity of CDs for Fe3+. The fluorescence quenching effect of Fe3+ was much stronger, which demonstrated that the CDs had high selectivity for Fe3+ and they can be employed for the selective detection of Fe3+. The potential fluorescence quenching mechanism between CDs and Fe3+ was identified as the inner filter effect. The CDs were then used as a fluorescent sensor for the detection of Fe3+ in water samples and human serum; the recovery range was 93.76-113.80% (relative standard deviation less than 0.79%). These results indicate that the CDs can be applied for the sensitive and selective detection of Fe3+ in real samples. Moreover, on the basis of the redox reaction between Fe3+ and ascorbic acid (AA), the CD-Fe3+ system can be used as a fluorescent "off-on" sensor for the detection of AA with a limit of detection of 5 μM. What is more, because of their low toxicity and biocompatibility, the CDs can also be used for cell imaging and acted as a fluorescent probe for fluorescence imaging of Fe3+ and AA in living cells. These results demonstrate that the CDs have great potential for application in the fields of sensing, bioimaging, and even disease diagnosis.
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174
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Tang Z, Yang J, Li G, Hu Y. Synthesis of sulfur-rich nitrogen dots from a single source precursor and its application in dual-mode sensing. Talanta 2019; 195:550-557. [DOI: 10.1016/j.talanta.2018.11.079] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 11/14/2018] [Accepted: 11/22/2018] [Indexed: 01/22/2023]
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175
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Selective, Sensitive and Label-Free Detection of Fe3+ Ion in Tap Water Using Highly Fluorescent Graphene Quantum Dots. J Fluoresc 2019; 29:541-548. [DOI: 10.1007/s10895-019-02365-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 03/10/2019] [Indexed: 01/14/2023]
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176
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Wang Y, Yang Y, Liu W, Ding F, Zou P, Wang X, Zhao Q, Rao H. A carbon dot-based ratiometric fluorometric and colorimetric method for determination of ascorbic acid and of the activity of ascorbic acid oxidase. Mikrochim Acta 2019; 186:246. [DOI: 10.1007/s00604-019-3341-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 02/26/2019] [Indexed: 12/29/2022]
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177
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Wang Q, Wang X, Wu Y. Highly Sensitive and Selective Fluorescence Probe for 2,4‐Dinitrophenylhydrazine Detection in Wastewater Using Water‐Soluble CdTe QDs. Photochem Photobiol 2019; 95:895-900. [DOI: 10.1111/php.13084] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 01/04/2019] [Indexed: 01/02/2023]
Affiliation(s)
- Qiuyue Wang
- Hubei Collaborative Innovation Center for Rare Metal Chemistry Hubei Key Laboratory of Pollutant Analysis & Reuse Technology Institute for Advanced Materials College of Chemistry and Chemical Engineering Hubei Normal University Huangshi China
| | - Xuehan Wang
- Hubei Collaborative Innovation Center for Rare Metal Chemistry Hubei Key Laboratory of Pollutant Analysis & Reuse Technology Institute for Advanced Materials College of Chemistry and Chemical Engineering Hubei Normal University Huangshi China
| | - Yiwei Wu
- Hubei Collaborative Innovation Center for Rare Metal Chemistry Hubei Key Laboratory of Pollutant Analysis & Reuse Technology Institute for Advanced Materials College of Chemistry and Chemical Engineering Hubei Normal University Huangshi China
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178
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Chen B, Chai S, Liu J, Liu C, Li Y, He J, Yu Z, Yang T, Feng C, Huang C. 2,4,6-Trinitrophenol detection by a new portable sensing gadget using carbon dots as a fluorescent probe. Anal Bioanal Chem 2019; 411:2291-2300. [DOI: 10.1007/s00216-019-01670-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/23/2019] [Accepted: 02/05/2019] [Indexed: 11/28/2022]
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179
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High-fluorescent carbon dots (CDs) originated from China grass carp scales (CGCS) for effective detection of Hg(II) ions. Microchem J 2019. [DOI: 10.1016/j.microc.2018.11.044] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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180
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Cheng HY, Li DC, Cheng BH, Jiang H. Highly stable and selective measurement of Fe 3+ ions under environmentally relevant conditions via an excitation-based multiwavelength method using N, S-doped carbon dots. ENVIRONMENTAL RESEARCH 2019; 170:443-451. [PMID: 30639888 DOI: 10.1016/j.envres.2018.12.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/27/2018] [Accepted: 12/11/2018] [Indexed: 06/09/2023]
Abstract
Fast and accurate detection of Fe3+ under relevant natural conditions is important in environmental monitoring. In this study, an improved and simplified fluorescence method based on the multiwavelength luminescence in the visible region and the avoidance of the self-quenching property of N, S-doped carbon dots (NSC-Dots) was developed for the first time to determine Fe3+ concentration under varied environmental conditions. This method can simultaneously save time and provide accurate information. The as-prepared NSC-Dots exhibit two stable excitation peaks from 200 nm to 450 nm at a fixed emission wavelength (λem = 450 nm). A standard equation (R2 = 0.995) can be derived by measuring the quenching degree of the two peaks and referring to Stern-Volmer theory. Thus, Fe3+ concentration was accurately determined. The interference of the environmentally relevant concentrations of other metal ions, humic acid, and pH on Fe3+ measurement was tested. Results showed that the standard equation can be used to accurately determine Fe3+ concentration within the range of the 95% prediction band. The fast and facile multiwavelength method may facilitate the real-time monitoring of Fe3+ concentration in complex water environments.
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Affiliation(s)
- Hui-Yuan Cheng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - De-Chang Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Bin-Hai Cheng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Hong Jiang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
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181
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Shojaeifard Z, Heidari N, Hemmateenejad B. Bimetallic AuCu nanoclusters-based florescent chemosensor for sensitive detection of Fe 3+ in environmental and biological systems. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 209:202-208. [PMID: 30390506 DOI: 10.1016/j.saa.2018.10.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 05/25/2018] [Accepted: 10/21/2018] [Indexed: 05/24/2023]
Abstract
Assays of ferric ion (Fe3+) with high sensitivity and selectivity have been required to evaluate its amount in environmental and biological systems. Herein, a novel fluorometric penicillamine-capped bimetallic gold-copper nanoclusters (PA-AuCu bi-MNCs) sensor was constructed for facile, environmentally friendly and quantitative detection of Fe3+ through inner filter effect (IFE) mechanism. One-step green synthetic approach was applied for the synthesis of AuCu bi-MNCs by using d-penicillamine (D-PA) as template and stabilizer. In the presence of Fe3+, the emission of the PA-AuCu bi-MNCs was hindered that caused selective quenching of the fluorescence intensity. The response to Fe3+ allows for two linear dynamic ranges of 5.0 × 10-7 M-7.0 × 10-6 M and 7.0 × 10-6 M-1.0 × 10-4 M with a detection limit of 0.1 μM, which is approximately 53 times lower than the maximum level (5.37 μM) of Fe3+ in drinking water that had been reported by the World Health Organization. The independency of the system from most of the interferences is the important feature of this work. Beside the appropriate selectivity of the proposed method, it shows a considerable operation in various environmental samples including rain water, three types of river water and also in human blood serum as a biological matrix.
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Affiliation(s)
- Zahra Shojaeifard
- Chemistry Department, Shiraz University, Shiraz, Iran; Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nahid Heidari
- Chemistry Department, Shiraz University, Shiraz, Iran
| | - Bahram Hemmateenejad
- Chemistry Department, Shiraz University, Shiraz, Iran; Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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182
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De Acha N, Elosúa C, Corres JM, Arregui FJ. Fluorescent Sensors for the Detection of Heavy Metal Ions in Aqueous Media. SENSORS 2019; 19:s19030599. [PMID: 30708989 PMCID: PMC6386841 DOI: 10.3390/s19030599] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/17/2019] [Accepted: 01/23/2019] [Indexed: 12/17/2022]
Abstract
Due to the risks that water contamination implies for human health and environmental protection, monitoring the quality of water is a major concern of the present era. Therefore, in recent years several efforts have been dedicated to the development of fast, sensitive, and selective sensors for the detection of heavy metal ions. In particular, fluorescent sensors have gained in popularity due to their interesting features, such as high specificity, sensitivity, and reversibility. Thus, this review is devoted to the recent advances in fluorescent sensors for the monitoring of these contaminants, and special focus is placed on those devices based on fluorescent aptasensors, quantum dots, and organic dyes.
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Affiliation(s)
- Nerea De Acha
- Department of Electric, Electronic and Communications Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
| | - César Elosúa
- Department of Electric, Electronic and Communications Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
- Institute of Smart Cities (ISC), Public University of Navarra, E-31006 Pamplona, Spain.
| | - Jesús M Corres
- Department of Electric, Electronic and Communications Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
- Institute of Smart Cities (ISC), Public University of Navarra, E-31006 Pamplona, Spain.
| | - Francisco J Arregui
- Department of Electric, Electronic and Communications Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
- Institute of Smart Cities (ISC), Public University of Navarra, E-31006 Pamplona, Spain.
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183
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Cui P. Adiabatic and nonadiabatic charge separation dynamics in graphene oxide quantum dots for overall water splitting. NANOTECHNOLOGY 2019; 30:045201. [PMID: 30457975 DOI: 10.1088/1361-6528/aaebcd] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Chemical functionalization and heteroatom doping are two effective strategies for improving the conductivity of a graphene lattice. Nitrogen-doped graphene oxide quantum dot (GOQD) has been reported to possess both p- and n-conductivity that is induced by an oxygen functional group and nitrogen doping, respectively, and is suitable for catalyzing hydrogen and oxygen evolution reactions for complete water splitting. The experimental study shows that the hydrogen evolution reaction occurs considerably faster than the oxygen evolution reaction. However, the mechanism of this phenomenon remains unknown, which poses a challenge to the chemical modification of such classes of materials. In the present work, we perform nonadiabatic ab initio molecular dynamics to explore the charge separation dynamics in N-doped GOQD with oxygen functional groups. Our results show that there exists multiple charge decay channels governed by different mechanisms, which complicates the overall charge separation dynamics in N-doped GOQD. The intramolecular electron transfer mainly occurs through the nonadiabatic channel, whereas the intramolecular hole transfer mainly occurs through the adiabatic channel. There is an additional adiabatic decay channel in the p-domain, which accelerates electron-hole recombination in the p-domain. We further calculated the decoherence times and found that the decoherence of intramolecular electron transfer occurs considerably faster than that of hole transfer, which slows the quantum transition of intramolecular electron transfer. Finally, we simulated the carrier relaxation times and found that the electron relaxation is approximately one order of magnitude longer than that of the hole relaxation. Our calculation rationalizes the experimentally observed higher catalytic activity towards the hydrogen evolution compared to the oxygen evolution. More importantly, the calculation explains the fundamental roles of nitrogen doping and oxygen functional groups in the adiabatic and nonadiabatic charge decay mechanisms.
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Affiliation(s)
- Peng Cui
- Department of Materials Science and Engineering, School of Engineering, Rutges, The State University of New Jersey, 607 Taylor Road, Piscataway, NJ 08854, United States of America
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184
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Zhou X, Zhao G, Tan X, Qian X, Zhang T, Gui J, Yang L, Xie X. Nitrogen-doped carbon dots with high quantum yield for colorimetric and fluorometric detection of ferric ions and in a fluorescent ink. Mikrochim Acta 2019; 186:67. [DOI: 10.1007/s00604-018-3176-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 12/12/2018] [Indexed: 11/28/2022]
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185
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Qu C, Zhang D, Yang R, Hu J, Qu L. Nitrogen and sulfur co-doped graphene quantum dots for the highly sensitive and selective detection of mercury ion in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 206:588-596. [PMID: 30196152 DOI: 10.1016/j.saa.2018.07.097] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 07/21/2018] [Accepted: 07/31/2018] [Indexed: 06/08/2023]
Abstract
In this work, a novel nitrogen and sulfur co-doped graphene quantum dots (N,S/GQDs) were synthesized by a simple and green pyrolysis method with citric acid as carbon source, d‑penicillamine as doped molecule. The obtained N,S/GQDs shows good water solubility, low cytotoxicity and high quantum yield of 56.4%. The doping of N and S can efficient promoted the coordination between the residual group of N,S/GQDs and Hg2+, thus, the fluorescence of N,S/GQDs can be dramatically and selectively quenched by Hg2+. Under the optimum conditions, the quenching effect of Hg2+ to N,S/GQDs was lined with its concentrations in the range of 0.9 to 30 nM with a detection limit of 0.69 nM. 100 fold of common metals had no influence for the determination of Hg2+. When Hela cells were incubated into the N,S/GQDs solutions for 2 h, more than 85% Cells still kept living even at a high concentration of 400 μg/mL suggesting the good biocompatibility and low toxicity of the obtained N,S/GQDs. Besides this, the N,S/GQDs also showed good cell permeability and could enter into the cell and showed bright blue light. Thus, they were successfully applied as a powerful fluorescent nano-sensor for imaging detection of mercury ions in the living cells.
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Affiliation(s)
- Chaojie Qu
- The College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Duobao Zhang
- The College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Ran Yang
- The College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, PR China.
| | - Jingyu Hu
- The College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Lingbo Qu
- The College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, PR China; Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou University, Zhengzhou 450001, PR China.
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186
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Picard M, Thakur S, Misra M, Mohanty AK. Miscanthus grass-derived carbon dots to selectively detect Fe3+ ions. RSC Adv 2019; 9:8628-8637. [PMID: 35518702 PMCID: PMC9061809 DOI: 10.1039/c8ra10051a] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/23/2019] [Indexed: 12/17/2022] Open
Abstract
Novel fluorescent carbon dots (CDs) were synthesized using an economically feasible and green one-step heating process. Miscanthus, a perennial grass and an inexpensive sustainable biomass, was utilized as the starting material to prepare CDs and doped CDs (nitrogen, phosphorous and nitrogen-phosphorous dual doped). The abundance of oxygen-containing functional groups in Miscanthus-derived CDs (MCD) and doped MCD was confirmed via Fourier-transform infrared (FTIR) and energy dispersive X-ray spectroscopy (EDS). The average size of MCD, N-doped MCD, P-doped MCD and dual-doped MCDs was found to be 7.87 ± 0.27, 4.6 ± 0.21, 6.7 ± 0.38 and 5.3 ± 0.32 nm, respectively. The synthesized MCD and doped MCD exhibited a quantum yield (QY) of 4.71, 11.65, 2.33 and 9.63% for the MCD, N-doped MCD, P-doped MCD and dual-doped MCD, respectively. MCD and doped MCD exhibited excellent excitation-dependent photoluminescence properties, with strong blue fluorescence upon irradiation with UV-light (365 nm). N-doped MCD exhibited superb selectivity towards Fe3+ ions, with a detection limit of 20 nM and a detection range from 0.02 to 2000 μM. The normalized linear relationship between the intensity of fluorescence emission of the prepared N-doped MCD and the concentration of Fe3+ ions was utilized to selectively and sensitively detect Fe3+ ions. Fluorescent carbon dots for the selective and sensitive detection of Fe3+ ions with a wide detection range and very low detection limit.![]()
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Affiliation(s)
- Maisyn Picard
- Bioproducts Discovery and Development Centre
- Department of Plant Agriculture
- University of Guelph
- Guelph
- Canada
| | - Suman Thakur
- Bioproducts Discovery and Development Centre
- Department of Plant Agriculture
- University of Guelph
- Guelph
- Canada
| | - Manjusri Misra
- Bioproducts Discovery and Development Centre
- Department of Plant Agriculture
- University of Guelph
- Guelph
- Canada
| | - Amar K. Mohanty
- Bioproducts Discovery and Development Centre
- Department of Plant Agriculture
- University of Guelph
- Guelph
- Canada
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187
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Krishnan SK, Singh E, Singh P, Meyyappan M, Nalwa HS. A review on graphene-based nanocomposites for electrochemical and fluorescent biosensors. RSC Adv 2019; 9:8778-8881. [PMID: 35517682 PMCID: PMC9062009 DOI: 10.1039/c8ra09577a] [Citation(s) in RCA: 265] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 02/15/2019] [Indexed: 12/16/2022] Open
Abstract
Biosensors with high sensitivity, selectivity and a low limit of detection, reaching nano/picomolar concentrations of biomolecules, are important to the medical sciences and healthcare industry for evaluating physiological and metabolic parameters.
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Affiliation(s)
- Siva Kumar Krishnan
- CONACYT-Instituto de Física
- Benemérita Universidad Autónoma de Puebla
- Puebla 72570
- Mexico
| | - Eric Singh
- Department of Computer Science
- Stanford University
- Stanford
- USA
| | - Pragya Singh
- Department of Electrical Engineering and Computer Science
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| | - Meyya Meyyappan
- Center for Nanotechnology
- NASA Ames Research Center
- Moffett Field
- Mountain View
- USA
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188
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Wang ZX, Gao YF, Jin X, Yu XH, Tao X, Kong FY, Fan DH, Wang W. Excitation-independent emission carbon nanoribbon polymer as a ratiometric photoluminescent probe for highly selective and sensitive detection of quercetin. Analyst 2019; 144:2256-2263. [DOI: 10.1039/c9an00094a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In this study, sulfur–nitrogen co-doped carbon nanoribbon (SNCNR) polymers with stable dual-emission fluorescence were synthesized using a one-step traditional hydrothermal method of 6-mercaptopurine in an aqueous methanol solution.
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Affiliation(s)
- Zhong-Xia Wang
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province
| | - Yuan-Fei Gao
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Xing Jin
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Xian-He Yu
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Xi Tao
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Fen-Ying Kong
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Da-He Fan
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Wei Wang
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
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189
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Zuo LQ, Zhang TF, Zhang ZK, Hou JX, Liu GJ, Du JL, Li LJ. A 3D binuclear salen-based multifunctional MOF: Degradation of MO dye and highly selective sensing of Fe3+. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2018.11.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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190
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Li J, Tang K, Yu J, Wang H, Tu M, Wang X. Nitrogen and chlorine co-doped carbon dots as probe for sensing and imaging in biological samples. ROYAL SOCIETY OPEN SCIENCE 2019; 6:181557. [PMID: 30800391 PMCID: PMC6366224 DOI: 10.1098/rsos.181557] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 11/27/2018] [Indexed: 05/20/2023]
Abstract
A facile one-step hydrothermal synthesis approach was proposed to prepare nitrogen and chlorine co-doped carbon dots (CDs) using l-ornithine hydrochloride as the sole precursor. The configuration and component of CDs were characterized by transmission electron microscopy and X-ray photoelectron and Fourier transform infrared spectroscopies. The obtained CDs (Orn-CDs) with a mean diameter of 2.1 nm were well monodispersed in aqueous solutions. The as-prepared CDs exhibited a bright blue fluorescence with a high yield of 60%, good photostability and low cytotoxicity. The emission of Orn-CDs could be selectively and effectively suppressed by Fe3+. Thus, a quantitative assay of Fe3+ was realized by this nanoprobe with a detection limit of 95.6 nmol l-1 in the range of 0.3-50 µmol l-1. Furthermore, ascorbic acid could recover the fluorescence of Orn-CDs suppressed by Fe3+, owing to the transformation of Fe3+ to Fe2+ by ascorbic acid. The limit of detection for ascorbic acid was 137 nmol l-1 in the range of 0.5-10 µmol l-1. In addition, the established method was successfully applied for Fe3+ and ascorbic acid sensing in human serum and urine specimens and for imaging of Fe3+ in living cells. Orn-CD-based sensing platform showed its potential to be used for biomedicine-related study because it is cost-effective, easily scalable and can be used without additional functionalization and sample pre-treatment.
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Affiliation(s)
- Jin Li
- Department of Reproductive Medicine, Suizhou Hospital, Hubei University of Medicine, 60 Longmen Street, Suizhou 441300, People's Republic of China
| | - Kai Tang
- Center for Translational Medicine, Suizhou Hospital, Hubei University of Medicine, 8 East Culture Park Road, Suizhou 441300, People's Republic of China
| | - Jianxin Yu
- Center for Translational Medicine, Suizhou Hospital, Hubei University of Medicine, 8 East Culture Park Road, Suizhou 441300, People's Republic of China
| | - Hanqin Wang
- Center for Translational Medicine, Suizhou Hospital, Hubei University of Medicine, 8 East Culture Park Road, Suizhou 441300, People's Republic of China
| | - Mingli Tu
- Center for Translational Medicine, Suizhou Hospital, Hubei University of Medicine, 8 East Culture Park Road, Suizhou 441300, People's Republic of China
| | - Xiaobo Wang
- Department of Reproductive Medicine, Suizhou Hospital, Hubei University of Medicine, 60 Longmen Street, Suizhou 441300, People's Republic of China
- Center for Translational Medicine, Suizhou Hospital, Hubei University of Medicine, 8 East Culture Park Road, Suizhou 441300, People's Republic of China
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191
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Wu B, Liu X, Shi X, Han W, Wang C, Jiang L. Highly photoluminescent and temperature-sensitive P, N, B-co-doped carbon quantum dots and their highly sensitive recognition for curcumin. RSC Adv 2019; 9:8340-8349. [PMID: 35518689 PMCID: PMC9061703 DOI: 10.1039/c9ra00183b] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 03/06/2019] [Indexed: 11/21/2022] Open
Abstract
Temperature-sensitive P, N, B-co-doped carbon quantum dots (PNBCDs) synthesized using one-pot method exhibit many excellent features, such as strong fluorescence, good stability and sensitive detection for curcumin.
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Affiliation(s)
- Bin Wu
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Xiaolong Liu
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Xiaofeng Shi
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Wei Han
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Chunru Wang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Li Jiang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
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192
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Zeng HH, Zhou ZY, Liu F, Deng J, Huang SY, Li GP, Lai PQ, Xie YP, Xiao W. Design and synthesis of a vanadate-based ratiometric fluorescent probe for sequential recognition of Cu2+ ions and biothiols. Analyst 2019; 144:7368-7377. [PMID: 31663528 DOI: 10.1039/c9an01518c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
YVO4:Eu3+@CDs core–shell nanomaterial was synthesized through a simple self-assembly of carbon dots (CDs) with YVO4:Eu3+, since the high affinity of oxygen-containing groups such as –COOH or –OH of CDs to the metal ions on the surface of YVO4:Eu3+.
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Affiliation(s)
- Hui-Hui Zeng
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Zhi-Ying Zhou
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Fang Liu
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Jie Deng
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Shu-Yun Huang
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Guo-Ping Li
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Pei-Qing Lai
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Yue-Ping Xie
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
| | - Wei Xiao
- Jiangxi Key Laboratory of Industrial Ceramics
- Pingxiang University
- Pingxiang 337055
- China
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193
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Ngoc Anh NT, Chang PY, Doong RA. Sulfur-doped graphene quantum dot-based paper sensor for highly sensitive and selective detection of 4-nitrophenol in contaminated water and wastewater. RSC Adv 2019; 9:26588-26597. [PMID: 35528575 PMCID: PMC9070512 DOI: 10.1039/c9ra04414k] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/13/2019] [Indexed: 01/09/2023] Open
Abstract
4-Nitrophenol (4-NP) is a promulgated priority pollutant, which can cause a negative impact on human health. The development of a direct and effective technique for the rapid detection and screening of 4-NP is, therefore, of urgent need. In this study, the blue luminescent sulfur-doped graphene quantum dots (S-GQDs) with a size of 1–5 nm are fabricated using a one-step pyrolysis procedure in the presence of citric acid and 3-mercaptosuccinic acid. The S-GQDs exhibit a strong emission band at 450 nm under the excitation of 330 nm UV light. 4-NP can serve as the fluorescence quencher by the π–π interaction with S-GQD, resulting in the linear decrease in fluorescence intensity after the addition of various 4-NP concentrations ranging from 10 nM to 200 μM. The S-GQDs serve as the sensing probe to enhance the analytical performance on 4-NP detection with the limit of detection values of 0.7 and 3.5 nM in deionized water and wastewater, respectively. The S-GQD based sensing platform can be used to detect 4-NP in different matrices of water and wastewater. In addition, the detected percentages of spiked 4-NP concentrations in the presence of different matrices and interferences are in the range of (98 ± 5)–(108 ± 2)%. Moreover, the S-GQD based paper sensor can rapidly screen 4-NP in wastewater within 1 min. Results obtained in this study clearly demonstrate the superiority of S-GQDs as a promising fluorescence probe for highly sensitive and selective detection of a wide concentration range of 4-NP in deionized water and wastewater. Sulfur-doped graphene quantum dots have been prepared for effective and rapid detection of 4-nitrophenol.![]()
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Affiliation(s)
- Nguyen Thi Ngoc Anh
- Institute of Environmental Engineering
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| | - Pei-Yi Chang
- Center for Measurement Standard
- Industrial Technology Research Institute (ITRI)
- Hsinchu
- Taiwan
| | - Ruey-An Doong
- Institute of Environmental Engineering
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
- Department of Biomedical Engineering and Environmental Sciences
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194
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Fu Y, Gao G, Zhi J. Electrochemical synthesis of multicolor fluorescent N-doped graphene quantum dots as a ferric ion sensor and their application in bioimaging. J Mater Chem B 2019; 7:1494-1502. [DOI: 10.1039/c8tb03103g] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel electrochemical strategy for simple and facile synthesis of semicarbazide functionalized nitrogen-doped graphene quantum dots (N-GQDs) was reported, based on direct exfoliation and oxidation from graphite rods.
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Affiliation(s)
- Yang Fu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Guanyue Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Jinfang Zhi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
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195
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Zhang B, He Y, Fan Z. Nitrogen-doped graphene quantum dots as highly sensitive and selective fluorescence sensor detection of iodide ions in milk powder. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.09.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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196
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Park M, Seo TS. An integrated microfluidic device with solid-phase extraction and graphene oxide quantum dot array for highly sensitive and multiplex detection of trace metal ions. Biosens Bioelectron 2018; 126:405-411. [PMID: 30471565 DOI: 10.1016/j.bios.2018.11.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 11/03/2018] [Accepted: 11/10/2018] [Indexed: 01/22/2023]
Abstract
An integrated microfluidic device, consisting of a solid-phase extraction (SPE) unit for metal ion pretreatment, a micropump, a micromixer, and a detachable graphene oxide quantum dot (GOQD) array chip was constructed for selective and sensitive detection of As3+, Cd2+, and Pb2+. The entire process could be sequentially and automatically completed by actuating a pneumatic micropump. Effect of the pH for metal ion capture and pumping scheme for recovery efficiency were investigated on a chip. The ion As3+, Cd2+, and Pb2+ whose concentrations ranged from 10-2 µM to 102 µM were successfully recovered with high efficiency over 80%. Monoplex and multiplex detection of As3+, Cd2+, and Pb2+ were then executed on a GOQD array chip. The target metal ions were specifically captured on the DNA aptamer linked GOQD array, which results in the fluorescence quenching of GOQD due to the electron transfer from the GOQD to metal ions under the laser irradiation. The proposed integrated SPE-GOQD array based microdevice could perform As3+, Cd2+, and Pb2+ detection with detection limits of 5.03 nM, 41.1 nM, and 4.44 nM, respectively. Simultaneous multiplex detection for binary or ternary mixture of As3+, Cd2+, and Pb2+ was performed, and the proposed integrated microdevice also showed high recovery values ranging from 83.52% to 128.3% from the environmental samples.
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Affiliation(s)
- Minsu Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Tae Seok Seo
- Department of Chemical Engineering, College of Engineering, Kyung Hee University, 1 Seochon-dong, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea.
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197
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Huang B, He J, Bian S, Zhou C, Li Z, Xi F, Liu J, Dong X. S-doped graphene quantum dots as nanophotocatalyst for visible light degradation. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2018.01.004] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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198
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Luo Y, Li M, Sun L, Xu Y, Li M, Hu G, Tang T, Wen J, Li X, Zhang J, Wang L. High fluorescent sulfur regulating graphene quantum dots with tunable photoluminescence properties. J Colloid Interface Sci 2018; 529:205-213. [DOI: 10.1016/j.jcis.2018.06.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 11/25/2022]
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199
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Wen J, Sun S. Carbon Nanomaterials in Optical Detection. CARBON-BASED NANOMATERIALS IN ANALYTICAL CHEMISTRY 2018. [DOI: 10.1039/9781788012751-00105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Owing to their unique optical, electronic, mechanical, and chemical properties, flexible chemical modification, large surface coverage and ready cellular uptake, various carbon nanomaterials such as carbon nanotubes (CNTs), graphene and its derivatives, carbon dots (CDs), graphene quantum dots, fullerenes, carbon nanohorns (CNHs) and carbon nano-onions (CNOs), have been widely explored for use in optical detection. Most of them are based on fluorescence changes. In this chapter, we will focus on carbon nanomaterials-based optical detection applications, mainly including fluorescence sensing and bio-imaging. Moreover, perspectives on future exploration of carbon nanomaterials for optical detection are also given.
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Affiliation(s)
- Jia Wen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University Yangling, Shaanxi 712100 PR China
| | - Shiguo Sun
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University Yangling, Shaanxi 712100 PR China
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200
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Yuan F, Li Y, Li X, Zhu J, Fan L, Zhou S, Zhang Y, Zhou J. Nitrogen-Rich D-π-A Structural Carbon Quantum Dots with a Bright Two-Photon Fluorescence for Deep-Tissue Imaging. ACS APPLIED BIO MATERIALS 2018; 1:853-858. [DOI: 10.1021/acsabm.8b00276] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fanglong Yuan
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yunchao Li
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Xiaohong Li
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jia Zhu
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Louzhen Fan
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Shixin Zhou
- Department of Cell Biology, School of Basic Medicine, Peking University Health Science Center, Beijing 100191, China
| | - Yiran Zhang
- Department of Neurosurgery, Yale University, New Haven, Connecticut 06510, United States
| | - Jiangbing Zhou
- Department of Neurosurgery, Yale University, New Haven, Connecticut 06510, United States
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