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Farahmand Kateshali A, Soleimannejad J, Janczak J. Ultrasound-assisted synthesis of a Eu 3+-functionalized Zn II coordination polymer as a fluorescent dual detection probe for highly sensitive recognition of Hg II and L-Cys. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2024; 80:208-218. [PMID: 38856649 DOI: 10.1107/s2052520624003019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/07/2024] [Indexed: 06/11/2024]
Abstract
A new ZnII coordination polymer (CP) based on 2,3-pyrazine dicarboxylic acid (H2pzdc) and 4,4'-bipyridine (bpy) (ZCP) was synthesized using a facile slow evaporation method. Single-crystal X-ray diffraction revealed that ZCP is a two-dimensional porous CP, [Zn2(pzdc)2(bpy)(H2O)2]n, with van der Waals forces as the dominant interaction within its layers forming a 63 network. Employing energetic ultrasound irradiation, nanoscale ZCP (nZCP) was successfully synthesized and Eu3+ ions were incorporated within its host lattice (Eu@nZCP). The resulting platform exhibits superior fluorescence characteristics and demonstrates notable optical durability. Therefore, it was used as a dual detection fluorescent sensing platform for the detection of mercury and L-cysteine (L-Cys) in aqueous media through a turn-off/on strategy. In the turn-off process, the fluorescence emission of Eu@nZCP progressively quenches by the addition of HgII via a photo-induced electron transfer (PET) mechanism. The fluorescence of Eu@nZCP is quenched to establish a low fluorescence background through the incorporation of HgII. This devised turn-on fluorescent system is suitable for the recognition of L-Cys (based on the strong affinity of L-Cys to the HgII ion) through a quencher detachment mechanism. This method attained a relatively wide linear range, spanning from 0.001 to 25 µM, with the low detection limit of 5 nM for the sensing of HgII. Also, the corresponding limit of detection (LOD) for L-Cys is 8 nM in a relatively wide linear range, spanning from 0.001 to 40 µM.
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Affiliation(s)
| | - Janet Soleimannejad
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
| | - Jan Janczak
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-950 Wrocław, Poland
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2
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Naik VM, Waghmare RD, Gore AH, Anbhule PV, Kolekar GB. Greenish‐Yellow Emitting Carbon Dots as ‘On‐Off‐On’ Fluorescent Probe for Selective Determination of Mercury (II) and Sulphide Ions. ChemistrySelect 2022. [DOI: 10.1002/slct.202201193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Vaibhav M. Naik
- P. E. S.'s Ravi S. Naik College of Arts and Science Farmagudi Ponda-Goa 403401
- Fluorescence Spectroscopy Research Laboratory Department of Chemistry Shivaji University Kolhapur 416004, (MS India
| | - Ravindra D. Waghmare
- Fluorescence Spectroscopy Research Laboratory Department of Chemistry Shivaji University Kolhapur 416004, (MS India
| | - Anil H. Gore
- Tarsadia Institute of Chemical Science Uka Tarsadia University Bardoli Gujarat India
| | - Prashant V. Anbhule
- Fluorescence Spectroscopy Research Laboratory Department of Chemistry Shivaji University Kolhapur 416004, (MS India
| | - Govind B. Kolekar
- Fluorescence Spectroscopy Research Laboratory Department of Chemistry Shivaji University Kolhapur 416004, (MS India
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3
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A carbon-based fluorescent probe (N-CDs) encapsulated in a zeolite matrix (NaFZ) for ultrasensitive detection of Hg (II) in fish. Talanta 2021; 234:122646. [PMID: 34364455 DOI: 10.1016/j.talanta.2021.122646] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 06/16/2021] [Accepted: 06/18/2021] [Indexed: 11/23/2022]
Abstract
In this work, a novel strategy was addressed to fabricate new sensing probe (N-CDs@NaFZ) from nitrogen doped carbon dots (N-CDs) confined in Al-free ferrisilicates zeolite (NaFZ) by hydrothermal/solvothermal method. The probe was systematically characterized by HR-TEM, FTIR, energy dispersive X-ray (EDX), powder X-ray diffraction, and UV-Vis absorption and fluorescence spectrophotometers. Characterization of the designed nanocomposite template N-CDs@NaFZ by fluorescence spectrum demonstrates a variety of important conducts as stability improvements, reasonable dispersibility in water, highly emission intensity enhancement at 435 nm when excited at 340 nm, excitation independent fluorescence behaviors, great quantum yield percentage of 91.2%, and narrow size distribution 12 nm, as a nano-space confinement effect of zeolite effectively increase the rigidity of N-CDs. Based on the fluorescence quenching mechanism, the designed approach exhibits an excellent selectivity and good sensitive response to the presence of Hg(II) ions under ambient temperature, with a wide linear range of 0.1-1500 nM and lower detection limits of 5.5 pM. Influences of variables pH and incubation time were optimized. The N-CDs@NaFZ sensor was effectively applied for the detection of Hg(II) ions in the farmed and wild rainbow trout fishes, and the results are in reasonable agreement when compared with that obtained by the cold vapor atomic absorption method.
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4
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Wan J, Zhang X, Fu K, Zhang X, Shang L, Su Z. Highly fluorescent carbon dots as novel theranostic agents for biomedical applications. NANOSCALE 2021; 13:17236-17253. [PMID: 34651156 DOI: 10.1039/d1nr03740d] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
As an emerging fluorescent nanomaterial, carbon dots (CDs) exhibit many attractive physicochemical features, including excellent photoluminescence properties, good biocompatibility, low toxicity and the ability to maintain the unique properties of the raw material. Therefore, CDs have been intensively pursued for a wide range of applications, such as bioimaging, drug delivery, biosensors and antibacterial agents. In this review, we systematically summarize the synthesis methods of these CDs, their photoluminescence mechanisms, and the approaches for enhancing their fluorescence properties. Particularly, we summarize the recent research on the synthesis of CDs from drug molecules as raw materials and introduce the representative application aspects of these fascinating CDs. Finally, we look into the future direction of CDs in the biomedical field and discuss the challenges encountered in the current development.
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Affiliation(s)
- Jiafeng Wan
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China.
| | - Xiaoyuan Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China.
| | - Kun Fu
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China.
| | - Xin Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China.
| | - Li Shang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Shaanxi Joint Laboratory of Graphene (NPU), Xi'an 710072, China.
| | - Zhiqiang Su
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China.
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5
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Wang XL, Han X, Tang XY, Chen XJ, Li HJ. A Review of Off-On Fluorescent Nanoprobes: Mechanisms, Properties, and Applications. J Biomed Nanotechnol 2021; 17:1249-1272. [PMID: 34446130 DOI: 10.1166/jbn.2021.3117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
With the development of nanomaterials, fluorescent nanoprobes have attracted enormous attention in the fields of chemical sensing, optical materials, and biological detection. In this paper, the advantages of "off-on" fluorescent nanoprobes in disease detection, such as high sensitivity and short response time, are attentively highlighted. The characteristics, sensing mechanisms, and classifications of disease-related target substances, along with applications of these nanoprobes in cancer diagnosis and therapy are summarized systematically. In addition, the prospects of "off-on" fluorescent nanoprobe in disease detection are predicted. In this review, we presented information from all the papers published in the last 5 years discussing "off-on" fluorescent nanoprobes. This review was written in the hopes of being useful to researchers who are interested in further developing fluorescent nanoprobes. The characteristics of these nanoprobes are explained systematically, and data references and supports for biological analysis, clinical drug improvement, and disease detection have been provided appropriately.
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Affiliation(s)
- Xiao-Lin Wang
- School of Life Science, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing 100081, China
| | - Xiao Han
- School of Life Science, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing 100081, China
| | - Xiao-Ying Tang
- School of Life Science, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing 100081, China
| | - Xiao-Jun Chen
- School of Life Science, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing 100081, China
| | - Han-Jun Li
- School of Life Science, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing 100081, China
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6
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Singh Tanwar LK, Sharma S, Ghosh KK. Spectroscopic detection of Hg2+ in water samples using fluorescent carbon quantum dots as sensing probe. MAIN GROUP CHEMISTRY 2021. [DOI: 10.3233/mgc-183967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Mercury (Hg2+) is remarked as toxic and hazardous element to global environment. Here, carbon quantum dots (CQDs) were synthesized by simple microwave assisted technique for Hg2+ detection in water samples via. fluorescence quenching and FT-IR spectroscopic approach. The morphology and chemical structure of synthesized CQDs was investigated by TEM, FT-IR, 13C-NMR, fluorescence and UV-vis spectroscopic technique. The resultant CQDs bears spherical morphology with an average size of 2–4 nm. The binding parameters, as Stern-Volmer quenching constant (Ksv) and binding constant for CQDs-Hg system was investigated by fluorescence method, whereas UV-vis techniques was employed for determination of thermodynamic parameters, as Gibb’s free energy (ΔG), enthalpy (ΔH) and entropy (ΔS) at three different temperature (295, 298 and 305 K). Moreover, selectivity assay for Hg2+ detection has been studied in presence of other metal ions by FT-IR as well as fluorescence spectroscopy. Analytical assay was also successfully applied for Hg2+ in spiked water samples collected from different areas of Chhattisgarh, with 98–99 recovery %. The detection of Hg2+ has been demonstrated in the range of 0 to 5.0μM with 3.25 nM detection limit. The present method is found to be simple, highly sensitive and selective for sensing of Hg2+ in aquatic environmental samples using CQDs as sensing probe.
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Affiliation(s)
| | - Srishti Sharma
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur (C.G.), India
| | - Kallol K. Ghosh
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur (C.G.), India
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7
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Saravanan A, Maruthapandi M, Das P, Ganguly S, Margel S, Luong JHT, Gedanken A. Applications of N-Doped Carbon Dots as Antimicrobial Agents, Antibiotic Carriers, and Selective Fluorescent Probes for Nitro Explosives. ACS APPLIED BIO MATERIALS 2020; 3:8023-8031. [DOI: 10.1021/acsabm.0c01104] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Arumugam Saravanan
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, 5290002, Israel
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Moorthy Maruthapandi
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, 5290002, Israel
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Poushali Das
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, 5290002, Israel
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Sayan Ganguly
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, 5290002, Israel
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Shlomo Margel
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, 5290002, Israel
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - John H. T. Luong
- School of Chemistry, University College Cork, Cork T12 YN60, Ireland
| | - Aharon Gedanken
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, 5290002, Israel
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, 5290002, Israel
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8
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Sun D, Liu T, Wang C, Yang L, Yang S, Zhuo K. Hydrothermal synthesis of fluorescent carbon dots from gardenia fruit for sensitive on-off-on detection of Hg 2+ and cysteine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118598. [PMID: 32563034 DOI: 10.1016/j.saa.2020.118598] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/27/2020] [Accepted: 06/06/2020] [Indexed: 06/11/2023]
Abstract
Nitrogen and sulfur co-doped carbon dots (N/S-CDs) were prepared by a simple hydrothermal method using gardenia fruit as precursor. The N/S-CDs are nearly spherical particles with a size of 2.1 nm and possess excellent fluorescence stability in a wide pH range and high NaCl concentrations, as well as under UV light irradiation. The absolute quantum yield (QY) without any surface modification reaches up to 10.7%. Meanwhile, the N/S-CDs can be quenched by Hg2+ (turn-off), while the quenched fluorescence can be recovered (turn-on) by introducing cysteine (Cys), with linear ranges of 2-20 μM for Hg2+and 0.1-2.0 μM for Cys. On the basis of the on-off-on sensing mode, the N/S-CDs can be used to detect Hg2+ and Cys. Hence, the N/S-CDs would be a promising sensor in environmental and biological analysis.
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Affiliation(s)
- Dong Sun
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Tiantian Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Chunfeng Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Lifang Yang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Shengkai Yang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Kelei Zhuo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, PR China.
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9
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Mucha SG, Firlej L, Bantignies JL, Żak A, Samoć M, Matczyszyn K. Acetone-derived luminescent polymer dots: a facile and low-cost synthesis leads to remarkable photophysical properties. RSC Adv 2020; 10:38437-38445. [PMID: 35517521 PMCID: PMC9057305 DOI: 10.1039/d0ra05957a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/10/2020] [Indexed: 01/07/2023] Open
Abstract
Carbon-based dots have been attracting much attention as potentially superior alternatives to more conventional semiconductor nanoparticles, due to their fascinating optical properties, chemical and photochemical stability, unique environmental-friendliness, and the versatility of fabrication routes. Many commercial materials and organic compounds have been considered so far as carbon precursors but in many cases the fabrication required high-temperature conditions or led to inhomogeneous final products. Here we report on a simple low-cost synthesis of non-conjugated carbon-rich polymer dots (PDs) that uses acetone as carbon precursor. Both hydrophilic and hydrophobic fractions of PDs were obtained, with the respective average diameters of 2–4 nm and ca. 6 nm. The as-obtained PDs reveal greenish-blue photoluminescence (PL) and high quantum yields (∼5–7%) and complex kinetics of the decays with the average lifetime of ∼3.5 ns. Such luminescent acetone-derived PDs may find application in several fields, including sensing and bioimaging. Acetone-derived polymer dots (PDs) have been fabricated, according to a base-mediated synthesis route at room temperature. As-obtained hydrophobic and hydrophilic PDs revealed a strong greenish-blue emission due to the crosslink-enhanced effect.![]()
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Affiliation(s)
- Sebastian G Mucha
- Laboratoire Charles Coulomb, University of Montpellier, CNRS Montpellier 34095 France
| | - Lucyna Firlej
- Laboratoire Charles Coulomb, University of Montpellier, CNRS Montpellier 34095 France
| | - Jean-Louis Bantignies
- Laboratoire Charles Coulomb, University of Montpellier, CNRS Montpellier 34095 France
| | - Andrzej Żak
- Electron Microscopy Laboratory, Faculty of Mechanical Engineering, Wrocław University of Science and Technology Wyb. Wyspiańskiego 27 50-370 Wroclaw Poland
| | - Marek Samoć
- Advanced Materials Engineering and Modelling Group, Wroclaw University of Science and Technology Wyb. Wyspiańskiego 27 50-370 Wrocław Poland
| | - Katarzyna Matczyszyn
- Advanced Materials Engineering and Modelling Group, Wroclaw University of Science and Technology Wyb. Wyspiańskiego 27 50-370 Wrocław Poland
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10
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Shi Y, Sun C, Gao X, Zhao W, Zhou N. Sensitively and Selectively Detect Biothiols by Using Fluorescence Method and Resonance Light Scattering Technique Simultaneously. Molecules 2019; 24:molecules24224136. [PMID: 31731646 PMCID: PMC6891520 DOI: 10.3390/molecules24224136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/12/2019] [Accepted: 11/13/2019] [Indexed: 02/06/2023] Open
Abstract
In this paper, we designed a new quantitative and qualitive detection method for biothiols by using fluorescence method and resonance light scattering (RLS) technique. Nitrogen doped carbon quantum dots (C/N-dots) were obtained from tartaric acid and ethylenediamine by hydrothermal method, and then their morphology and optical properties were characterized by different techniques. A detection system consisting of C/N-dots and Ag+ complex was established. In this system, C/N-dots possessed the photoluminescent property and the Ag+ complex owned the RLS property, so, by combining the two luminescent properties to achieve complementary advantages, we could detect biothiols and solve the problem of distinguishing between Cys and GSH. Additionally, we optimized detecting conditions and investigated the detection mechanism of fluorescence quenching and RLS detecting. Results showed that the analytical response of fluorescence was linear in the range 0–140 μM and the detection limit (LOD) was calculated to be 6.6 μM for Cys, and the addition of GSH had no effect on fluorescence. RLS response ranges were 0–167 μM for Cys and 0–200 μM for GSH, with LOD down to 64 nM and 74 nM, respectively. Furthermore, the probe was successfully used for detecting Cys in fetal bovine serum (FBS) samples by fluorescence method, and also, by RLS technique, the content of GSH in FBS samples was detected.
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Affiliation(s)
- Yanping Shi
- Department of Chemistry, Northeast Agricultural University, Harbin 150025, China; (Y.S.); (C.S.); (X.G.)
| | - Chao Sun
- Department of Chemistry, Northeast Agricultural University, Harbin 150025, China; (Y.S.); (C.S.); (X.G.)
| | - Xiaoqi Gao
- Department of Chemistry, Northeast Agricultural University, Harbin 150025, China; (Y.S.); (C.S.); (X.G.)
| | - Wei Zhao
- Department of Physiology, Hei Longjiang University of Chinese Medicine, Harbin 150040, China;
| | - Nan Zhou
- Department of Chemistry, Northeast Agricultural University, Harbin 150025, China; (Y.S.); (C.S.); (X.G.)
- Correspondence: ; Tel.: +86-137-6687-3464
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11
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Ludmerczki R, Mura S, Carbonaro CM, Mandity IM, Carraro M, Senes N, Garroni S, Granozzi G, Calvillo L, Marras S, Malfatti L, Innocenzi P. Carbon Dots from Citric Acid and its Intermediates Formed by Thermal Decomposition. Chemistry 2019; 25:11963-11974. [PMID: 31254368 DOI: 10.1002/chem.201902497] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Indexed: 01/04/2023]
Abstract
Thermal decomposition of citric acid is one of the most common synthesis methods for fluorescent carbon dots; the reaction pathway is, however, quite complex and the details are still far from being understood. For instance, several intermediates form during the process and they also give rise to fluorescent species. In the present work, the formation of fluorescent C-dots from citric acid has been studied as a function of reaction time by coupling infrared analysis, X-ray photoelectron spectroscopy, liquid chromatography/mass spectroscopy (LC/MS) with the change of the optical properties, absorption and emission. The reaction intermediates, which have been identified at different stages, produce two main emissive species, in the green and blue, as also indicated by the decay time analysis. C-dots formed from the intermediates have also been synthesised by thermal decomposition, which gave an emission maximum around 450 nm. The citric acid C-dots in water show short temporal stability, but their functionalisation with 3-aminopropyltriethoxysilane reduces the quenching. The understanding of the citric acid thermal decomposition reaction is expected to improve the control and reproducibility of C-dots synthesis.
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Affiliation(s)
- Robert Ludmerczki
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, Via Vienna 2., 07100, Sassari, Italy
| | - Stefania Mura
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, Via Vienna 2., 07100, Sassari, Italy
| | - Carlo Maria Carbonaro
- Department of Physics, University of Cagliari, Campus of Monserrato, sp n.8, km 0.700, 09042, Monserrato, Italy
| | - Istvan M Mandity
- Department of Organic Chemistry, Semmelweis University, 1092, Budapest, Hogyes Endre St. 7., Hungary.,MTA TTK Lendület Artificial Transporter Research Group, Institute of Materials and Environmental Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences, 1117, Budapest, Magyar Tudósok krt. 2., Hungary
| | - Massimo Carraro
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, Via Vienna 2., 07100, Sassari, Italy
| | - Nina Senes
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, Via Vienna 2., 07100, Sassari, Italy
| | - Sebastiano Garroni
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, Via Vienna 2., 07100, Sassari, Italy
| | - Gaetano Granozzi
- Materials Characterization Facility, Istituto Italiano di Tecnologia, Via Morego, 30., 16163, Genova, Italy
| | - Laura Calvillo
- Department of Chemical Sciences, University of Padua, Via Marzolo 1, 35131, Padova, Italy
| | - Sergio Marras
- Department of Chemical Sciences, University of Padua, Via Marzolo 1, 35131, Padova, Italy
| | - Luca Malfatti
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, Via Vienna 2., 07100, Sassari, Italy
| | - Plinio Innocenzi
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, Via Vienna 2., 07100, Sassari, Italy
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12
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Ma X, Lin S, Dang Y, Dai Y, Zhang X, Xia F. Carbon dots as an "on-off-on" fluorescent probe for detection of Cu(II) ion, ascorbic acid, and acid phosphatase. Anal Bioanal Chem 2019; 411:6645-6653. [PMID: 31372699 DOI: 10.1007/s00216-019-02038-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/19/2019] [Accepted: 07/17/2019] [Indexed: 12/12/2022]
Abstract
Carbon dot (CD)-based fluorescent probes have been widely exploited; however, multi-component detection using CDs without tedious surface modification is always a challenging task. Here, we develop a convenient and simple CD-based "on-off-on" fluorescent probe for detection of copper(II) ion (Cu2+), ascorbic acid (AA), and acid phosphatase (ACP). Cu2+ leads to the fluorescence quenching of CDs. The limit of detection (LOD) for Cu2+ is 2.4 μM. When AA is added into the CDs + Cu2+ solution, Cu2+ is reduced by AA to Cu+, causing the fluorescence recovery of CDs. The fluorescent intensity linearly correlates with the concentration of AA in the range of 100-2800 μM with LOD of 60 μM. Besides, the probe has potential application for detection of AA in real samples such as VC tablets, orange juice, and fresh orange. The probe can also indirectly detect ACP that enzymatically hydrolyzes ascorbic acid-phosphate (AAP) to produce AA. This work expands the application of CDs in the multi-component detection and provides a facile fluorescent probe for detection of AA in real samples. Graphical abstract.
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Affiliation(s)
- Xin Ma
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China
| | - Shijun Lin
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China
| | - Yunfei Dang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China
| | - Yu Dai
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China.
| | - Xiaojin Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China.
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, Hubei, China.
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13
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Devi P, Rajput P, Thakur A, Kim KH, Kumar P. Recent advances in carbon quantum dot-based sensing of heavy metals in water. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.03.003] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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14
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Singh AK, Singh VK, Singh M, Singh P, Khadim SR, Singh U, Koch B, Hasan S, Asthana R. One pot hydrothermal synthesis of fluorescent NP-carbon dots derived from Dunaliella salina biomass and its application in on-off sensing of Hg (II), Cr (VI) and live cell imaging. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.02.023] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Zhao XH, Zhang LZ, Zhao SY, Cui XH, Gong L, Zhao R, Yu BF, Xie J. Silver-ion-mediated Mg2+-dependent DNAzyme activity for amplified fluorescence detection of cysteine. Analyst 2019; 144:1982-1987. [DOI: 10.1039/c8an02308e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Schematic illustration of a DNAzyme-based fluorescent biosensor for amplified Cys detection.
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Affiliation(s)
- Xu-Hua Zhao
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- P. R. China
| | - Li-Zhuan Zhang
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- P. R. China
| | - Su-Ya Zhao
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- P. R. China
| | - Xiao-Hua Cui
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- P. R. China
| | - Liang Gong
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices
- College of Life Sciences and Chemistry
- Hunan University of Technology
- Zhuzhou 412007
- China
| | - Rong Zhao
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- P. R. China
| | - Bao-Feng Yu
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- P. R. China
| | - Jun Xie
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- P. R. China
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16
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Shen S, Huang B, Guo X, Wang H. A dual-responsive fluorescent sensor for Hg2+ and thiols based on N-doped silicon quantum dots and its application in cell imaging. J Mater Chem B 2019; 7:7033-7041. [DOI: 10.1039/c9tb01502g] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An on–off–on fluorescent sensor based on N-SiQD has the advantages of fast response time and high sensitivity to Hg2+ and GSH.
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Affiliation(s)
- Sansan Shen
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Bohui Huang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Xiaofeng Guo
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Hong Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
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17
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Rao L, Tang Y, Lu H, Yu S, Ding X, Xu K, Li Z, Zhang JZ. Highly Photoluminescent and Stable N-Doped Carbon Dots as Nanoprobes for Hg 2+ Detection. NANOMATERIALS 2018; 8:nano8110900. [PMID: 30400227 PMCID: PMC6265737 DOI: 10.3390/nano8110900] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 10/28/2018] [Accepted: 10/31/2018] [Indexed: 01/30/2023]
Abstract
We developed a microreactor with porous copper fibers for synthesizing nitrogen-doped carbon dots (N-CDs) with a high stability and photoluminescence (PL) quantum yield (QY). By optimizing synthesis conditions, including the reaction temperature, flow rate, ethylenediamine dosage, and porosity of copper fibers, the N-CDs with a high PL QY of 73% were achieved. The PL QY of N-CDs was two times higher with copper fibers than without. The interrelations between the copper fibers with different porosities and the N-CDs were investigated using X-ray photoelectron spectroscopy (XPS) and Fourier Transform infrared spectroscopy (FTIR). The results demonstrate that the elemental contents and surface functional groups of N-CDs are significantly influenced by the porosity of copper fibers. The N-CDs can be used to effectively and selectively detect Hg2+ ions with a good linear response in the 0~50 μM Hg2+ ions concentration range, and the lowest limit of detection (LOD) is 2.54 nM, suggesting that the N-CDs have great potential for applications in the fields of environmental and hazard detection. Further studies reveal that the different d orbital energy levels of Hg2+ compared to those of other metal ions can affect the efficiency of electron transfer and thereby result in their different response in fluorescence quenching towards N-CDs.
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Affiliation(s)
- Longshi Rao
- Engineering Research Centre of Green Manufacturing for Energy-Saving and New-Energy Technology, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China.
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA.
| | - Yong Tang
- Engineering Research Centre of Green Manufacturing for Energy-Saving and New-Energy Technology, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Hanguang Lu
- Engineering Research Centre of Green Manufacturing for Energy-Saving and New-Energy Technology, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Shudong Yu
- Engineering Research Centre of Green Manufacturing for Energy-Saving and New-Energy Technology, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China.
- Light Technology Institute, Karlsruhe Institute of Technology (KIT), Engesserstrasse 13, 76131 Karlsruhe, Germany.
| | - Xinrui Ding
- Engineering Research Centre of Green Manufacturing for Energy-Saving and New-Energy Technology, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Ke Xu
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA.
- Department of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China.
| | - Zongtao Li
- Engineering Research Centre of Green Manufacturing for Energy-Saving and New-Energy Technology, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Jin Z Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA.
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18
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Chan KK, Yap SHK, Yong KT. Biogreen Synthesis of Carbon Dots for Biotechnology and Nanomedicine Applications. NANO-MICRO LETTERS 2018; 10:72. [PMID: 30417004 PMCID: PMC6208800 DOI: 10.1007/s40820-018-0223-3] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 09/02/2018] [Indexed: 05/14/2023]
Abstract
Over the past decade, carbon dots have ignited a burst of interest in many different fields, including nanomedicine, solar energy, optoelectronics, energy storage, and sensing applications, owing to their excellent photoluminescence properties and the easiness to modify their optical properties through doping and functionalization. In this review, the synthesis, structural and optical properties, as well as photoluminescence mechanisms of carbon dots are first reviewed and summarized. Then, we describe a series of designs for carbon dot-based sensors and the different sensing mechanisms associated with them. Thereafter, we elaborate on recent research advances on carbon dot-based sensors for the selective and sensitive detection of a wide range of analytes, including heavy metals, cations, anions, biomolecules, biomarkers, nitroaromatic explosives, pollutants, vitamins, and drugs. Lastly, we provide a concluding perspective on the overall status, challenges, and future directions for the use of carbon dots in real-life sensing.
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Affiliation(s)
- Kok Ken Chan
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Stephanie Hui Kit Yap
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
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19
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Yan F, Sun X, Zu F, Bai Z, Jiang Y, Fan K, Wang J. Fluorescent probes for detecting cysteine. Methods Appl Fluoresc 2018; 6:042001. [PMID: 30039804 DOI: 10.1088/2050-6120/aad580] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cysteine plays a crucial role in physiological processes. Therefore, it is necessary to develop a method for detecting cysteine. Fluorimetry has the advantages of convenient detection, short response time, high sensitivity and good selectivity. In this review, fluorescent probes that detect cysteine over the past three years are summarized based on structural features of fluorophores such as coumarin, BODIPY, rhodamine, fluorescein, CDs, QDs, etc and reaction groups including acrylate, aldehyde, halogen, 7-nitrobenzofurazan, etc. Then, effects of different combinations between fluorophores and response groups on probe properties and detection performances are discussed.
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20
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A Colorimetric and Fluorescent Indicator for Hg2+ Detection Based on Cinnamamide Group-Containing Rhodamine Derivative. J Fluoresc 2018; 28:905-911. [PMID: 29936595 DOI: 10.1007/s10895-018-2253-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 06/07/2018] [Indexed: 10/28/2022]
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21
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Wang H, Zhang P, Tian Y, Zhang Y, Yang H, Chen S, Zeng R, Long Y, Chen J. Real-time monitoring of endogenous cysteine levels in living cells using a CD-based ratiometric fluorescent nanoprobe. Anal Bioanal Chem 2018; 410:4379-4386. [DOI: 10.1007/s00216-018-1091-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/15/2018] [Accepted: 04/16/2018] [Indexed: 12/24/2022]
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22
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Singh S, Singh MK, Das P. Visual detection of cyclobutane pyrimidine dimer DNA damage lesions by Hg 2+ and carbon dots. Anal Chim Acta 2018. [PMID: 29534804 DOI: 10.1016/j.aca.2018.02.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cyclobutane pyrimidine dimmers (CPDs) and 6-4-[pyrimidine-2'-one] pyrimidine (6-4 PP) are major UV induced DNA damage lesions formed from solar radiation and other sources. CPD lesions are presumably mutagenic and carcinogenic that inhibit polymerases and interfere in DNA replication. An easy and cost effective way for visual detection of these lesions by using fluorescence based method is shown here. Artificial UVA and UVB lights were used for the generation of CPD and 6-4 PPs in selected DNA samples. Binding of Hg2+ ions with DNA before and after induction of CPD and 6-4 PP lesions was evaluated in the presence of highly fluorescent blue emitting carbon dots (CDs). Induction of CPD and 6-4 PPs in DNA causes distortion of DNA structure which hinders the binding of Hg2+ ions to DNA nucleobases. Quenching of fluorescence intensity of CDs by unbound Hg2+ ions was found to be proportional to the amount of CPD and 6-4 PP lesions induced by UV irradiation of DNA samples that offer a biosensing platform for the sensitive detection of CPD lesions in DNA. The fluorescent quenching was visually detectable using hand held UV light without the intervention of any equipment.
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Affiliation(s)
- Seema Singh
- Department of Chemistry, Indian Institute of Technology Patna, Patna, 801106, Bihar, India
| | - Manoj K Singh
- Atomic and Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Prolay Das
- Department of Chemistry, Indian Institute of Technology Patna, Patna, 801106, Bihar, India.
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23
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Ganganboina AB, Dutta Chowdhury A, Doong RA. N-Doped Graphene Quantum Dots-Decorated V 2O 5 Nanosheet for Fluorescence Turn Off-On Detection of Cysteine. ACS APPLIED MATERIALS & INTERFACES 2018; 10:614-624. [PMID: 29227622 DOI: 10.1021/acsami.7b15120] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The development of a fast-response sensing technique for detection of cysteine can provide an analytical platform for prescreening of disease. Herein, we have developed a fluorescence turn off-on fluorescence sensing platform by combining nitrogen-doped graphene quantum dots (N-GQDs) with V2O5 nanosheets for the sensitive and selective detection of cysteine in human serum samples. V2O5 nanosheets with 2-4 layers are successfully synthesized via a simple and scalable liquid exfoliation method and then deposited with 2-8 nm of N-GQDs as the fluorescence turn off-on nanoprobe for effective detection of cysteine in human serum samples. The V2O5 nanosheets serve as both fluorescence quencher and cysteine recognizer in the sensing platform. The fluorescence intensity of N-GQDs with quantum yield of 0.34 can be quenched after attachment onto V2O5 nanosheets. The addition of cysteine triggers the reduction of V2O5 to V4+ as well as the release of N-GQDs within 4 min, resulting in the recovery of fluorescence intensity for the turn off-on detection of cysteine. The sensing platform exhibits a two-stage linear response to cysteine in the concentration range of 0.1-15 and 15-125 μM at pH 6.5, and the limit of detection is 50 nM. The fluorescence response of N-GQD@V2O5 exhibits high selectivity toward cysteine over other 22 electrolytes and biomolecules. Moreover, this promising platform is successfully applied in detection of cysteine in human serum samples with excellent recovery of (95 ± 3.8) - (108 ± 2.4)%. These results clearly demonstrate a newly developed redox reaction-based nanosensing platform using N-GQD@V2O5 nanocomposites as the sensing probe for cysteine-associated disease monitoring and diagnosis in biomedical applications, which can open an avenue for the development of high performance and robust sensing probes to detect organic metabolites.
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Affiliation(s)
- Akhilesh Babu Ganganboina
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University , 101 Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Ankan Dutta Chowdhury
- Institute of Environmental Engineering, National Chiao Tung University , 1001 University Road, Hsinchu 30010, Taiwan
| | - Ruey-An Doong
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University , 101 Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
- Institute of Environmental Engineering, National Chiao Tung University , 1001 University Road, Hsinchu 30010, Taiwan
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24
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Yu L, Qu Y, Chai F, Chen L. Facile preparation of highly sensitive and selective fluorescent paper sensor for the visual and cyclic detection of Cu2+ and Hg2+. NEW J CHEM 2018. [DOI: 10.1039/c8nj03550d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The fluorescent paper sensor based on LAA-CQDs was prepared and applied to detect heavy metal ions Cu2+ and Hg2+. Notably, the paper sensor can be recycled for detecting at least four times, which greatly reduced resource consumption.
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Affiliation(s)
- Liying Yu
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- College of Chemistry and Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Yaoyao Qu
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- College of Chemistry and Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Fang Chai
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- College of Chemistry and Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Lihua Chen
- Shandong Key Laboratory of Biochemical Analysis
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
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25
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Gao Y, Jiao Y, Lu W, Liu Y, Han H, Gong X, Xian M, Shuang S, Dong C. Carbon dots with red emission as a fluorescent and colorimeteric dual-readout probe for the detection of chromium(vi) and cysteine and its logic gate operation. J Mater Chem B 2018; 6:6099-6107. [DOI: 10.1039/c8tb01580e] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A schematic illustration for assaying Cr(vi) and Cys activity by CDs with both fluorescent and colorimetric readouts.
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Affiliation(s)
- Yifang Gao
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Yuan Jiao
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Wenjing Lu
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Yang Liu
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Hui Han
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Xiaojuan Gong
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Ming Xian
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Shaomin Shuang
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
| | - Chuan Dong
- Department Institute of Environmental Science
- and School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan
- China
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