1
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Wang G, Chen K, Wang H, Chen C, Wang X. A smartphone-based visual ratiometric fluoroprobe for rapid and sensitive detection hypochlorous acid based on dual-emission metal organic frameworks. Talanta 2023; 265:124897. [PMID: 37413723 DOI: 10.1016/j.talanta.2023.124897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 06/20/2023] [Accepted: 07/01/2023] [Indexed: 07/08/2023]
Abstract
Herein, we designed/developed a mixed fluorescence system with europium metal-organic framework (EDB) and zinc metal-organic framework (ZBNB). At the 270-nm excitation wavelength, the EDB-ZBNB dually emitted at 425 and 615 nm and displayed blue solution under 365-nm UV lamp. When HOCl was fortified, the 425-nm blue emission dropped progressively, while the 615-nm red emission was relatively stable. Upon addition of ClO-, the shortened fluorescence lifetime demonstrated that the quenched 425-nm fluorescence of ZBNB was owing to the occurrence of dynamic quenching effect. Besides, amino groups are protonated in water to form -NH3+, which interact with ClO- to form hydrogen bonds, reduce the distance between -NH3+ and ClO-, produce energy transfer and result in fluorescence quenching. The ratiometric fluoroprobe provided a significant color change from blue to red, making HOCl detection visual and rapid. This fluorescent probe overcome the disadvantage of conventional redox-based fluorescent probes that can be interfered by MnO4- and other oxidants with stronger oxidizing capacity than free ClO-. Furthermore, a smartphone-based portable sensing platform was developed based on EDB-ZBNB. By using a "Thingidentify" software on smartphone, the sensing platform was used to detect HOCl in waters with a low detection limit of 28.0 nM and the fortified recoveries of 98.87-103.60%. Thus, this study provides a novel and promising platform for the detection of free ClO- in monitoring water quality.
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Affiliation(s)
- Guixin Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Kun Chen
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Huili Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Chunyang Chen
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China.
| | - Xuedong Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China.
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2
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Singh P, Arpita, Kumar S, Kumar P, Kataria N, Bhankar V, Kumar K, Kumar R, Hsieh CT, Khoo KS. Assessment of biomass-derived carbon dots as highly sensitive and selective templates for the sensing of hazardous ions. NANOSCALE 2023; 15:16241-16267. [PMID: 37439261 DOI: 10.1039/d3nr01966g] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Access to safe drinking water and a hygienic living environment are the basic necessities that encourage healthy living. However, the presence of various pollutants (especially toxic heavy metal ions) at high concentrations in water renders water unfit for drinking and domestic use. The presence of high concentrations of heavy-metal ions (e.g., Pb2+, Hg2+, Cr6+, Cd2+, or Cu2+) greater than their permissible limits adversely affects human health, and increases the risk of cancer of the kidneys, liver, skin, and central nervous system. Therefore, their detection in water is crucial. Due to the various benefits of "green"-synthesized carbon-dots (C-dots) over other materials, these materials are potential candidates for sensing of toxic heavy-metal ions in water sources. C-dots are very small carbon-based nanomaterials that show chemical stability, magnificent biocompatibility, excitation wavelength-dependent photoluminescence (PL), water solubility, simple preparation strategies, photoinduced electron transfer, and the opportunity for functionalization. A new family of C-dots called "carbon quantum dots" (CQDs) are fluorescent zero-dimensional carbon nanoparticles of size < 10 nm. The green synthesis of C-dots has numerous advantages over conventional chemical routes, such as utilization of inexpensive and non-poisonous materials, straightforward operations, rapid reactions, and renewable precursors. Natural sources, such as biomass and biomass wastes, are broadly accepted as green precursors for fabricating C-dots because these sources are economical, ecological, and readily/extensively accessible. Two main methods are available for C-dots production: top-down and bottom-up. Herein, this review article discusses the recent advancements in the green fabrication of C-dots: photostability; surface structure and functionalization; potential applications for the sensing of hazardous anions and toxic heavy-metal ions; binding of toxic ions with C-dots; probable mechanistic routes of PL-based sensing of toxic heavy-metal ions. The green production of C-dots and their promising applications in the sensing of hazardous ions discussed herein provides deep insights into the safety of human health and the environment. Nonetheless, this review article provides a resource for the conversion of low-value biomass and biomass waste into valuable materials (i.e., C-dots) for promising sensing applications.
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Affiliation(s)
- Permender Singh
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal, Sonipat-131039, Haryana, India.
| | - Arpita
- J. C. Bose University of Science & Technology, YMCA, Faridabad-121006, Haryana, India.
| | - Sandeep Kumar
- J. C. Bose University of Science & Technology, YMCA, Faridabad-121006, Haryana, India.
| | - Parmod Kumar
- J. C. Bose University of Science & Technology, YMCA, Faridabad-121006, Haryana, India.
| | - Navish Kataria
- J. C. Bose University of Science & Technology, YMCA, Faridabad-121006, Haryana, India.
| | - Vinita Bhankar
- Department of Biochemistry, Kurukshetra University, Kurukshetra-136119, Haryana, India
| | - Krishan Kumar
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal, Sonipat-131039, Haryana, India.
| | - Ravi Kumar
- J. C. Bose University of Science & Technology, YMCA, Faridabad-121006, Haryana, India.
| | - Chien-Te Hsieh
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan.
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN 37996, USA
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan.
- Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam-603103, Tamil Nadu, India
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3
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Zhou Y, Zhou Y, Gou J, Bai Q, Xiao X, Liu H. Europium-Functionalized Graphitic Carbon Nitride for Efficient Chemiluminescence Detection of Singlet Oxygen. ACS Sens 2023; 8:3349-3359. [PMID: 37596990 DOI: 10.1021/acssensors.3c00294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2023]
Abstract
Enhancing the sensitivity and selectivity of chemiluminescence (CL) sensors for detecting chemical species in complex samples poses a significant challenge in nanoparticle surface engineering. Graphitic carbon nitride (CN) shows promise but suffers from weak CL intensity and unknown luminescence mechanisms. In this study, we propose a nitrogen defect strategy to enhance the CL efficiency of europium-functionalized graphitic carbon nitride (Eu-CNNPs). By controlling the dosage of the europium modification, we can adjust the nitrogen defect content to reduce the energy gap and improve the CL performance. Remarkably, Eu-CNNPs with rich nitrogen defects exhibit strong chemiluminescence emission specifically for singlet oxygen (1O2) without responding to other reactive oxygen species (ROS). Building upon this finding, we developed a direct, selective, and sensitive CL sensing platform for 1O2 in PM2.5 and monitored 1O2 production in photosensitizers without interference from metal ions. Through extensive experiments, we attribute the 1O2-driven CL response to the presence of abundant nitrogen defects in the CN material, accelerating electron transfer and yielding a high generation of 1O2. Furthermore, chemiluminescence resonance energy transfer (CRET) between (1O2)2* (1O2 dimeric aggregate) and Eu-CNNPs contributes to strong CL emission. This work provides insights into enhancing the CL performance of CN and offers new possibilities for advancing the practical analysis of nanomaterials using the intriguing mechanism of nitrogen defects.
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Affiliation(s)
- Yuxian Zhou
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Yu Zhou
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Jing Gou
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Qinghong Bai
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Xin Xiao
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Houjing Liu
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
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4
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Yadav N, Mudgal D, Mishra V. In-situ synthesis of ionic liquid-based-carbon quantum dots as fluorescence probe for hemoglobin detection. Anal Chim Acta 2023; 1272:341502. [PMID: 37355334 DOI: 10.1016/j.aca.2023.341502] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 06/07/2023] [Indexed: 06/26/2023]
Abstract
Carbon quantum dots (CQDs) have emerged as a potential fluorescent probe in bio/analytical chemistry in the present decade. The optical characteristics of CQDs may be tuned by their functional groups, which can also be used to selectively produce stable bonds with target molecules. Along with them, ionic liquids (ILs) are now demonstrating their important relevance in the field of pharmaceuticals for the creation of potent therapeutics. In the article, we have discussed the use of high fluorescent ILs-decorated-CQDs (CQDs-IM@OTf) as a straightforward and quick-acting fluorescence probe for sensitive and precise hemoglobin (Hb) determination with minimum detectability of 6.7 nM. The proposed mechanism behind this involves static mode of quenching which leads to the formation of a ground state complex [CQDs-IM@OTf-Hb complex] between the Hb protein and the drug. Despite the fact that Hb can quench the fluorescence of CQDs due to the inner filter effect (IFE) of the protein, which effects both the excitation and emission spectra of the CQDs, the addition of H2O2 improved the sensitivity of Hb detection. The present assay predicated on Hb interaction with H2O2, which produces reactive oxygen species such as hydroxyl (OH.) and superoxide (O2.-) radicals under heme degradation and/or iron release from Hb. The subsequent reaction of hydroxyl radicals with CQDs, which acts as a strong oxidising agent, causes a high fluorescence quenching. The designed fluorescence probe was used to measure Hb in the concentration range of 3-90 nM with a precise detection limit of 0.33 nM. The quantification of hemoglobin (Hb) in diluted human blood samples is done using this observation.
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Affiliation(s)
- Nisha Yadav
- Amity Institute of Click Chemistry Research and Studies (AICCRS), Amity University, Noida, UP-201313, India
| | - Deeksha Mudgal
- Amity Institute of Click Chemistry Research and Studies (AICCRS), Amity University, Noida, UP-201313, India
| | - Vivek Mishra
- Amity Institute of Click Chemistry Research and Studies (AICCRS), Amity University, Noida, UP-201313, India.
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5
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Hu X, Xu Y, Liu S, Gudda FO, Ling W, Qin C, Gao Y. Graphene Quantum Dots Nonmonotonically Influence the Horizontal Transfer of Extracellular Antibiotic Resistance Genes via Bacterial Transformation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301177. [PMID: 37144438 DOI: 10.1002/smll.202301177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/10/2023] [Indexed: 05/06/2023]
Abstract
Graphene quantum dots (GQDs) coexist with antibiotic resistance genes (ARGs) in the environment. Whether GQDs influence ARG spread needs investigation, since the resulting development of multidrug-resistant pathogens would threaten human health. This study investigates the effect of GQDs on the horizontal transfer of extracellular ARGs (i.e., transformation, a pivotal way that ARGs spread) mediated by plasmids into competent Escherichia coli cells. GQDs enhance ARG transfer at lower concentrations, which are close to their environmental residual concentrations. However, with further increases in concentration (closer to working concentrations needed for wastewater remediation), the effects of enhancement weaken or even become inhibitory. At lower concentrations, GQDs promote the gene expression related to pore-forming outer membrane proteins and the generation of intracellular reactive oxygen species, thus inducing pore formation and enhancing membrane permeability. GQDs may also act as carriers to transport ARGs into cells. These factors result in enhanced ARG transfer. At higher concentrations, GQD aggregation occurs, and aggregates attach to the cell surface, reducing the effective contact area of recipients for external plasmids. GQDs also form large agglomerates with plasmids and thus hindering ARG entrance. This study could promote the understanding of the GQD-caused ecological risks and benefit their safe application.
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Affiliation(s)
- Xiaojie Hu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Yanxing Xu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Si Liu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Fredrick Owino Gudda
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Wanting Ling
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Chao Qin
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Yanzheng Gao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
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6
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Ruammaitree A, Praphanwong K, Taiphol A. Facile one-step hydrothermal synthesis of monolayer and turbostratic bilayer n-doped graphene quantum dots using sucrose as a carbon source. RSC Adv 2023; 13:23700-23707. [PMID: 37555086 PMCID: PMC10405785 DOI: 10.1039/d3ra04402e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 07/26/2023] [Indexed: 08/10/2023] Open
Abstract
Graphene quantum dots (GQDs) have attracted attention from researchers owing to their outstanding properties, such as chemical inertness, stable photoluminescence (PL), biocompatibility, and low toxicity, which make them suitable for bioimaging, optoelectronic device, sensor, and others. At present, there are several studies that report the effect of the size of GQDs on their properties; however, but there is only a few studies that report the effect of the thickness of GQDs on their properties. It may be attributed to the difficulty to obtain the accurate information on the thickness of GQDs. In this study, we demonstrate the facile and one-step hydrothermal synthesis of monolayer and bilayer n-doped graphene quantum dots (NGQDs) using sucrose as a carbon source. UV-visible and PL spectra show the quantum yield of the NGQDs is 4.9 times higher than that of the GQDs. Besides, the NGQDs exhibit sensitive PL for Ag+ ions. In addition, the thickness distribution and interlayer spacing of NGQDs are revealed by X-ray diffraction (XRD) curve fitting, which is calculated using a simple and accurate equation. The information on the structure of the NGQDs from the XRD curve fitting is in a good agreement with the Raman results. This accurate estimation of the structure of GQDs by XRD curve fitting using the simple equation may extend the limits of GDQ study.
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Affiliation(s)
- Akkawat Ruammaitree
- Department of Physics, Faculty of Science and Technology, Thammasat University Pathum Thani 12120 Thailand
- Thammasat University Research Unit in Synthesis and Applications of Graphene, Thammasat University Pathum Thani 12120 Thailand
| | - Kanyaporn Praphanwong
- Department of Physics, Faculty of Science and Technology, Thammasat University Pathum Thani 12120 Thailand
| | - Arunocha Taiphol
- Department of Physics, Faculty of Science and Technology, Thammasat University Pathum Thani 12120 Thailand
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7
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Wu Y, Lan W, He S, Guo X, Hai C, Zhao X, Chen H, Long W, She Y, Fu H. Highly selective detection of epinephrine by a "turn-off" fluorescent sensor based on N-doped carbon quantum dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 298:122760. [PMID: 37126907 DOI: 10.1016/j.saa.2023.122760] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 04/05/2023] [Accepted: 04/16/2023] [Indexed: 05/03/2023]
Abstract
Epinephrine (EP) is a catecholamine hormone with a variety of physiological activities. Monitoring the concentration of EP in drugs, food, biological samples and cosmetics is of great significance for their quality control. Herein, a novel fluorescence sensing method was designed for the high-specificity detection of EP based on N-doped carbon quantum dots (N-CDs). The EP could interact with the fluorescent senor of N-CDs which emits blue fluorescence to produce concentration- dependent fluorescence quenching through the photo-induced electron transfer (PET). The established sensing method has good linearity in the range of 0.5-10 μM with the LOD of 0.15 μM. More importantly, it is highly selective because similar components with phenolic hydroxyl groups or primary amino groups, even norepinephrine (NEP), could not interfere with the detection. This method can provide a low-cost, rapid and simple new way for the detection of EP, and has a good application prospect in point-of-care assay and in situ test.
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Affiliation(s)
- Yue Wu
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China
| | - Wei Lan
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China
| | - Song He
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China
| | - Xiaoming Guo
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China
| | - Chengying Hai
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China
| | - Xiangyu Zhao
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China
| | - Hengye Chen
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China
| | - Wanjun Long
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China
| | - Yuanbin She
- Zhejiang Univ Technol, Coll Chem Engn, State Key Lab Breeding Base Green Chem Synth Tech, Hangzhou 310032, PR China.
| | - Haiyan Fu
- The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China.
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8
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Yu Y, Zeng Q, Tao S, Xia C, Liu C, Liu P, Yang B. Carbon Dots Based Photoinduced Reactions: Advances and Perspective. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207621. [PMID: 36737845 PMCID: PMC10131860 DOI: 10.1002/advs.202207621] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Seeking clean energy as an alternative to traditional fossil fuels is the inevitable choice to realize the sustainable development of the society. Photocatalytic technique is considered a promising energy conversion approach to store the abundant solar energy into other wieldy energy carriers like chemical energy. Carbon dots, as a class of fascinating carbon nanomaterials, have already become the hotspots in numerous photoelectric researching fields and particularly drawn keen interests as metal-free photocatalysts owing to strong UV-vis optical absorption, tunable energy-level configuration, superior charge transfer ability, excellent physicochemical stability, facile fabrication, low toxicity, and high solubility. In this review, the classification, microstructures, general synthetic methods, optical and photoelectrical properties of carbon dots are systematically summarized. In addition, recent advances of carbon dots based photoinduced reactions including photodegradation, photocatalytic hydrogen generation, CO2 conversion, N2 fixation, and photochemical synthesis are highlighted in detail, deep insights into the roles of carbon dots in various systems combining with the photocatalytic mechanisms are provided. Finally, several critical issues remaining in photocatalysis field are also proposed.
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Affiliation(s)
- Yue Yu
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin UniversityChangchun130012P. R. China
| | - Qingsen Zeng
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin UniversityChangchun130012P. R. China
- Department of Materials Science and EngineeringSeoul National University1 Gwanak‐ro, Gwanak‐guSeoul08826Republic of Korea
| | - Songyuan Tao
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin UniversityChangchun130012P. R. China
| | - Chunlei Xia
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin UniversityChangchun130012P. R. China
| | - Chongming Liu
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin UniversityChangchun130012P. R. China
| | - Pengyuan Liu
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin UniversityChangchun130012P. R. China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin UniversityChangchun130012P. R. China
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9
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Singh N, Kaushal R. Optimization of Engine Parameters Using Taguchi Technique for a Diesel Engine Running on a Newly Developed bio-nano Diesel Emulsion. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2023. [DOI: 10.1007/s13369-023-07808-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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10
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Christian Gomes Morais Nascimento M, Carolina Robaina Vieira M, R P Rocha F, Almeida Silva T, Toito Suarez W. Flow-based green ceramics microdevice with smartphone image colorimetric detection for free chlorine determination in drinking water. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 287:122096. [PMID: 36371811 DOI: 10.1016/j.saa.2022.122096] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/01/2022] [Accepted: 11/06/2022] [Indexed: 06/16/2023]
Abstract
The residual free chlorine concentration is an important parameter to evaluate the potability of water and the efficiency of disinfection in the water treatment system. As a restricted range of residual free chlorine concentration at all points of the distribution network is needed to ensure efficiency and to avoid deleterious effects, fast and in situ quantification of this specie is important. This work deals with the development and validation of two procedures based on DPD (N,N-diethyl-p-phenylenediamine) and OT (ortho-tolidine, 3,3-dimethylbenzidine) for the determination of residual free chlorine in water by exploiting a flow-based microdevice built with Low Temperature Co-Fired Ceramic (LTCC) technology. The analytical signal was monitored by a smartphone camera through RGB values obtained by a free application (Color Grab®). Under optimized conditions, linear ranges within 0.6-2.5 mg/L and 0.1-2.3 mg/L were obtained for DPD and OT methods, with limits of detection and quantification of 0.023 and 0.077 mg/L (DPD) and 0.026 and 0.089 mg/L (OT). Precision expressed as RSD (2.0 mg/L free chlorine, n = 10), was 1.3 % and 0.7 %, respectively. Both procedures were successfully applied to the analysis of samples from a water treatment plant. The flow-based microdevice coupled to digital-image colorimetry is an innovative, sustainable, and cost-effective analytical tool for in-field chemical analysis.
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Affiliation(s)
| | | | - Fábio R P Rocha
- Center for Nuclear Energy in Agriculture, University of São Paulo, P.O. Box 96, 13416-000 Piracicaba, SP, Brazil
| | - Tiago Almeida Silva
- Department of Chemistry, Federal University of Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Willian Toito Suarez
- Department of Chemistry, Federal University of Viçosa, 36570-900 Viçosa, MG, Brazil.
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11
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Wang R, Zhang H, Wang S, Meng F, Sun J, Lou D, Su Z. A ratiometric fluorescent probe based on a dual-ligand lanthanide metal–organic framework (MOF) for sensitive detection of aluminium and fluoride ions in river and tap water. Inorg Chem Front 2023. [DOI: 10.1039/d2qi02554j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A dual-emission fluorescent probe towards Al3+ and F− using a Ln-MOF material Eu-BDC-NH2/TDA is employed with exceptional sensitivity, high selectivity, low LOD, excellent anti-interference characteristics and direct visual observation.
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Affiliation(s)
- Runnan Wang
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, People's Republic of China
- Department of Analytical Chemistry, Jilin Institute of chemical Technology, Key Laboratory of Fine Chemicals of Jilin Province, Jilin, 132022, PR China
| | - Hao Zhang
- Department of Analytical Chemistry, Jilin Institute of chemical Technology, Key Laboratory of Fine Chemicals of Jilin Province, Jilin, 132022, PR China
| | - Sibo Wang
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, People's Republic of China
| | - Fanxu Meng
- Center of Characterization and Analysis, Jilin Institute of Chemical Technology, Jilin, 132022, PR China
| | - Jing Sun
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, Jilin Provincial International Joint Research Center of Photo functional Materials and Chemistry, Changchun, 130022, People’s Republic of China
| | - Dawei Lou
- Department of Analytical Chemistry, Jilin Institute of chemical Technology, Key Laboratory of Fine Chemicals of Jilin Province, Jilin, 132022, PR China
| | - Zhongmin Su
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, Jilin Provincial International Joint Research Center of Photo functional Materials and Chemistry, Changchun, 130022, People’s Republic of China
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12
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Yu L, Guo R, Yuan Y, Su P, Li X, Ai Y, Sun M, Wang X, Huang D, Wang S. Methyl position affect the fluorescence performance of HBT derivatives for the detection of hypochlorite under alkaline condition. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 281:121583. [PMID: 35797952 DOI: 10.1016/j.saa.2022.121583] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 06/06/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
Five fluorescent derivatives of hydroxyphenyl-benzothiazole (HBT) with different methyl positions at the hydroxyphenyl group were synthesized with good yield. Their reactivity and fluorescent response to hypochlorite were carefully studied. It was found that the HBT derivatives with meta-methyl (3-HBT or 5-HBT) showed the highest reactivity to hypochlorite under basic conditions, accompanied by the most efficient fluorescence quenching, whereas HBT derivatives with ortho or para methyl exhibited the least reactivity to hypochlorite. The LUMO and HOMO of 3-HBT were further verified to explain the fluorescence behavior by density functional theory (DFT) calculation. The excellent selectivity of 3-HBT toward hypochlorite against other reactive oxygen species (ROS) was also evaluated under the same conditions. The compounds emit bright green fluorescence in a solid-state, which is convenient for designing sensing devices for hypochlorite in water samples. Thus, the HBT derivatives with meta methyl (3-HBT) were successfully applied to fabricate paper sensors for the quantification of hypochlorite in tap water. Hence, the fluorescent 3-HBT exhibits great promise as a selective and sensitive hypochlorite probe in chemical and biological applications.
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Affiliation(s)
- Long Yu
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P R China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, P R China
| | - Ruoxuan Guo
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P R China
| | - Yaru Yuan
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P R China
| | - Pengchen Su
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P R China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, P R China
| | - Xin Li
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, P R China
| | - Yuejie Ai
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P R China
| | - Mingtai Sun
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, P R China.
| | - Xiangke Wang
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P R China
| | - Dejian Huang
- Department of Food Science and Technology, National University of Singapore, 3 Science Drive 2, 117542, Singapore
| | - Suhua Wang
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P R China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, P R China.
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13
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Qi H, Zhai Z, Dong X, Zhang P. Nitrogen doped carbon quantum dots (N-CQDs) with high luminescence for sensitive and selective detection of hypochlorite ions by fluorescence quenching. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 279:121456. [PMID: 35687990 DOI: 10.1016/j.saa.2022.121456] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 05/28/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
A highly luminescent nitrogen-doped carbon quantum dots (N-CQDs) with a quantum yield of 44% was prepared by a facile hydrothermal synthesis method using citric acid (CA) and ethylenediamine (EDA) with a molar ratio of 1:1 at 200 °C for 5 h. The hypochlorite (ClO-) ions significantly quench the fluorescence of the N-CQDs according to a pseudo-second-order kinetic model. A sensitive and selective quantification method with an excellent linearity in the range of 1.0-10.0 μM was developed to detect ClO- ions based on the fluorescence quenching. The limit of detection (LOD) of 0.43 μM and the limit of quantification (LOQ) of 1.04 μM were achieved, respectively. This approach was successfully applied to detect the residual ClO- ions in local tap water and in swimming pool water. In addition, the developed fluorescence quenching method was also successfully applied in anti-counterfeiting and paper encryption. Both of the applications in real world suggest that the as-prepared N-CQDs is a kind of promising fluorescence probe for rapid detecting ClO- ions in environment fields, and has potential applications in text secrecy fields.
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Affiliation(s)
- Hongxia Qi
- College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zizhuo Zhai
- College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xipeng Dong
- College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Pudun Zhang
- College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China; Analysis and Test Center, Beijing University of Chemical Technology, Beijing 100029, China.
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14
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Islam N, Saikia BK. An overview on atmospheric carbonaceous particulate matter into carbon nanomaterials: A new approach for air pollution mitigation. CHEMOSPHERE 2022; 303:135027. [PMID: 35623423 DOI: 10.1016/j.chemosphere.2022.135027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Air pollutants consisting of atmospheric particulate matter (PM) poses a major threat to the environment and human health. However, due to their carbonaceous nature, these atmospheric PM can also be used as a precursor for fabrication of high-valued carbon nanomaterials (CNMs) leading to waste to wealth as well as mitigation of air pollution. Over the few years, various results have been reported on different types of physical and chemical methods for the synthesis of CNMs from atmospheric particulate matter with the help of top down and bottom up methods; however, there is a lack of review on these innovative processes and outcome in order to assess their feasibility and suitability for further investigation. This review critically assesses the synthesis, identification, and characterization of different types of CNMs derived from the atmospheric PM. The fascinating fluorescence properties along with the novel multifarious applications of such PM-derived CNMs are also extensively discussed in this review work. This unique review will certainly help to make a new avenue for air pollution mitigation through conversion of PMs in to value added nanomaterials (VNMs) and will boost the research activity in the field of environmental nanotechnology for a cleaner environment.
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Affiliation(s)
- Nazrul Islam
- Coal & Energy Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Binoy K Saikia
- Coal & Energy Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201002, India.
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15
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Lai WF, Obireddy SR, Zhang H, Zhang D, Wong WT. Advances in analysis of pharmaceuticals by using graphene-based sensors. ChemMedChem 2022; 17:e202200111. [PMID: 35618680 DOI: 10.1002/cmdc.202200111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/23/2022] [Indexed: 11/10/2022]
Abstract
Safe and effective use of drugs relies on proper pharmaceutical analysis. Graphene has been extensively used to construct sensors for this purpose. Over the years, a large variety of pharmaceutical sensors have been developed from graphene or its derivatives. This articles reviews the current status of sensor development from graphene and its derivatives, and discusses the use of graphene-based sensors in pharmaceutical analysis. It is hoped that this article cannot only offer a snapshot of recent advances in the fabrication and use of graphene-based sensors, but can also provide insights into future engineering and optimization of the sensors for effective pharmaceutical analysis.
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Affiliation(s)
- Wing-Fu Lai
- The Chinese University of Hong Kong, School of Life and Health Sciences, 518172, Shenzhen, CHINA
| | - Sreekanth Reddy Obireddy
- Sri Krishnadevaraya University, Chemistry, TIRUPATI NATIONAL HIGHWAY, ITUKALAPALLI, 515004, India, 515003, ANANTHAPURAMU, INDIA
| | - Haotian Zhang
- The Chinese University of Hong Kong, School of Life and Health Sciences, CHINA
| | | | - Wing-Tak Wong
- The Hong Kong Polytechnic University, Applied Biology and Chemical Technology, CHINA
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16
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Nitrogen-Doped and Surface Functionalized CDs: Fluorescent Probe for Cellular Imaging and Environmental Sensing of ClO–. J Fluoresc 2022; 32:1591-1600. [DOI: 10.1007/s10895-022-02952-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 04/11/2022] [Indexed: 10/18/2022]
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17
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Gogoi C, Nagarjun N, Rana A, Dhakshinamoorthy A, Biswas S. Diamino group-functionalized Zr-based metal-organic framework for fluorescence sensing of free chlorine in the aqueous phase and Knoevenagel condensation. Dalton Trans 2022; 51:6964-6975. [PMID: 35452068 DOI: 10.1039/d2dt00194b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We developed a porous diamino group-functionalized Zr(IV) metal-organic framework (MOF). The synthesized MOF has a similar structure to DUT-52 (DUT = Dresden University of Technology), which has a face-centered cubic structure with an Fm3̄m space group. The synthesized material (DUT-52-(NH2)2-1) was solvent exchanged with methanol (MeOH) and activated at 100 °C overnight. Both the as-synthesized and activated materials (DUT-52-(NH2)2-1') are thermally stable until 300 °C. The Brunauer-Emmett-Teller (BET) surface area of DUT-52-(NH2)2-1' was found to be 413 m2 g-1. DUT-52-(NH2)2-1' showed a significant quenching of fluorescence response after coming in contact with free chlorine (ClO-) in an aqueous medium. The selectivity of DUT-52-(NH2)2-1' towards ClO- was not significantly hampered in the presence of any competitive ion. The limit of detection (LOD) value was found to be 0.08 μM in phosphate-buffered saline (PBS, pH = 7.4). DUT-52-(NH2)2-1' is recyclable and very sensitive towards ClO-. Moreover, the paper strip method was developed for onsite identification of ClO-. Furthermore, the catalytic activity of DUT-52-(NH2)2-1' was tested in the Knoevenagel condensation between benzaldehyde and cyanoacetamide. The experimental results clearly indicate that DUT-52-(NH2)2-1' exhibits high activity with very high selectivity towards condensation products. The solid was reusable three times with no decay in its activity, as evidenced by powder X-ray diffraction (PXRD), field emission scanning electron microscopy (FE-SEM) and fourier transform infrared (FT-IR).
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Affiliation(s)
- Chiranjib Gogoi
- Department of Chemistry, Indian Institute of Technology Guwahati, 781039 Assam, India.
| | - Nagarathinam Nagarjun
- School of Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India.
| | - Abhijeet Rana
- 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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18
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Li Y, Li J, Cao Y, Jiang P, Tang Y, Chen Z, Han K. A visual method for determination of hepatitis C virus RNAs based on a 3D nanocomposite prepared from graphene quantum dots. Anal Chim Acta 2022; 1203:339693. [DOI: 10.1016/j.aca.2022.339693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 02/22/2022] [Accepted: 03/05/2022] [Indexed: 01/17/2023]
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19
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Double emission fluorescence probes based on unconventional fluorescent molecules and fluorescein isothiocyanate for ClO− and Cu2+ detection. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2021.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Wang G, Zhang S, Cui J, Gao W, Rong X, Lu Y, Gao C. Preparation of nitrogen-doped carbon quantum dots from chelating agent and used as fluorescent probes for accurate detection of ClO− and Cr(Ⅵ). Anal Chim Acta 2022; 1195:339478. [DOI: 10.1016/j.aca.2022.339478] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/29/2021] [Accepted: 01/07/2022] [Indexed: 11/01/2022]
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21
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Kang S, Han H, Lee K, Kim KM. Ultrasensitive Detection of Fe 3+ Ions Using Functionalized Graphene Quantum Dots Fabricated by a One-Step Pulsed Laser Ablation Process. ACS OMEGA 2022; 7:2074-2081. [PMID: 35071895 PMCID: PMC8771691 DOI: 10.1021/acsomega.1c05542] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/21/2021] [Indexed: 05/05/2023]
Abstract
With respect to the detection of Fe3+ ions, graphene quantum dots (GQDs) have limitations for commercialization owing to their high limit of detection (LOD). Here, we report a one-step pulsed laser ablation (PLA) process to fabricate amino-functionalized GQDs (FGQDs) for the efficient detection of Fe3+ using polypyrrole (PPy) both as a precursor (amine N) and as a surfactant and also using graphite as a carbon precursor. Using this method, the amine N groups were easily incorporated into the carbon network of the GQDs. Additionally, compared to pristine GQDs, FGQDs showed smaller particle sizes and narrower size distributions owing to the surface passivation effects of the PPy surfactant. Due to the synergistic effect of surface passivation and incorporation of amine N groups, FGQDs exhibited a sensitive response to Fe3+ ions in the concentration range of 500 nM to 50 μM, which is lower than the quality standards for Fe3+ ions (∼5.36 μM) as suggested by the World Health Organization (WHO). Furthermore, the processing time for synthesizing FGQDs by the PLA process was less than 30 min, thus allowing successful practical applications of GQDs in the sensing field.
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Affiliation(s)
- Sukhyun Kang
- Korea
Institute of Industrial Technology, 137-41 Gwahakdanji-ro, Gangwon-do 25440, Republic of Korea
| | - Hyuksu Han
- Department
of Energy Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Kangpyo Lee
- Korea
Institute of Industrial Technology, 137-41 Gwahakdanji-ro, Gangwon-do 25440, Republic of Korea
| | - Kang Min Kim
- Korea
Institute of Industrial Technology, 137-41 Gwahakdanji-ro, Gangwon-do 25440, Republic of Korea
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22
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Zubiarrain-Laserna A, Angizi S, Akbar MA, Divigalpitiya R, Selvaganapathy PR, Kruse P. Detection of free chlorine in water using graphene-like carbon based chemiresistive sensors. RSC Adv 2022; 12:2485-2496. [PMID: 35425275 PMCID: PMC8979178 DOI: 10.1039/d1ra08264g] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/12/2022] [Indexed: 01/02/2023] Open
Abstract
Free chlorine is the most commonly used water disinfectant. Measuring its concentration during and after water treatment is crucial to ensure its effectiveness. However, many of the existing methods do not allow for continuous on-line monitoring. Here we demonstrate a solid state chemiresistive sensor using graphene-like carbon (GLC) that overcomes that issue. GLC films that were either bare or non-covalently functionalized with the redox-active phenyl-capped aniline tetramer (PCAT) were successfully employed to quantify aqueous free chlorine, although functionalized devices showed better performance. The response of the sensors to increasing concentrations of free chlorine followed a Langmuir adsorption isotherm in the two tested ranges: 0.01–0.2 ppm and 0.2–1.4 ppm. The limit of detection was estimated to be 1 ppb, permitting the detection of breaches in chlorine filters. The devices respond to decreasing levels of free chlorine without the need for a reset, allowing for the continuous monitoring of fluctuations in the concentration. The maximum sensor response and saturation concentration were found to depend on the thickness of the GLC film. Hence, the sensitivity and dynamic range of the sensors can be tailored to different applications by adjusting the thickness of the films. Tap water samples from a residential area were tested using these sensors, which showed good agreement with standard colorimetric measurement methods. The devices did not suffer from interferences in the presence of ions commonly found in drinking water. Overall, these sensors are a cost-effective option for the continuous automated monitoring of free chlorine in drinking water. Chemiresistive sensors based on graphene-like carbon films are very stable and sensitive. They can be used for continuous online monitoring of free chlorine.![]()
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Affiliation(s)
- Ana Zubiarrain-Laserna
- Department of Chemistry and Chemical Biology, McMaster University 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | - Shayan Angizi
- Department of Chemistry and Chemical Biology, McMaster University 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | - Md Ali Akbar
- Department of Chemistry and Chemical Biology, McMaster University 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
| | | | | | - Peter Kruse
- Department of Chemistry and Chemical Biology, McMaster University 1280 Main Street West Hamilton Ontario L8S 4M1 Canada
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23
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Nano optical and electrochemical sensors and biosensors for detection of narrow therapeutic index drugs. Mikrochim Acta 2021; 188:411. [PMID: 34741213 DOI: 10.1007/s00604-021-05003-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 08/24/2021] [Indexed: 01/02/2023]
Abstract
For the first time, a comprehensive review is presented on the quantitative determination of narrow therapeutic index drugs (NTIDs) by nano optical and electrochemical sensors and biosensors. NTIDs have a narrow index between their effective doses and those at which they produce adverse toxic effects. Therefore, accurate determination of these drugs is very important for clinicians to provide a clear judgment about drug therapy for patients. Routine analytical techniques have limitations such as being expensive, laborious, and time-consuming, and need a skilled user and therefore the nano/(bio)sensing technology leads to high interest.
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24
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Nandi N, Gaurav S, Sarkar P, Kumar S, Sahu K. Hit Multiple Targets with One Arrow: Pb 2+ and ClO - Detection by Edge Functionalized Graphene Quantum Dots and Their Applications in Living Cells. ACS APPLIED BIO MATERIALS 2021; 4:7605-7614. [PMID: 35006709 DOI: 10.1021/acsabm.1c00867] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recently, multimodal detection of analytes through a single nanoprobe has become an eminent approach for researchers. Herein a fluorescent nanoprobe, functionalized-GQD (F-GQD), has been designed through edge functionalization of graphene quantum dots (GQDs) by 2,6-diaminopyridine molecules. The fluorescence of F-GQD is quite sensitive to medium pH, making it a suitable pH sensor within the pH range 2-6. Interestingly, F-GQD shows dual sensing of Pb2+ and ClO- by entirely different pathways; Pb2+ exhibits fluorescence turn-on performance while ClO- triggers turn-off fluorescence quenching. The fluorescence enhancement may originate from the Pb2+-induced aggregation of the nanodots. The limit of detection (LOD) was also impressive, 1.2 μM and 12.6 nM for Pb2+ and ClO-, respectively. The detailed mechanistic investigations reveal that both dynamic and static quenching effects operate together in the F-GQD-ClO- system. The dynamic quenching was attributed to the energy migration from F-GQD to ClO- through hydrogen bonding interaction (static quenching) between the amine group at the F-GQD surface and ClO-. The F-GQD nanodot reveals excellent sensitivity toward the detection of ClO- in real samples. Moreover, the F-GQDs also serve as multicolor fluorescent probes for cell imaging; the probe can easily penetrate the cell membrane and successfully detect intracellular ClO-.
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Affiliation(s)
- Nilanjana Nandi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Shubham Gaurav
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, 781039 Guwahati, Assam, India
| | - Priyanka Sarkar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Sachin Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, 781039 Guwahati, Assam, India
| | - Kalyanasis Sahu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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25
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Wang Y, Jiang K, Du J, Zheng L, Li Y, Li Z, Lin H. Green and Near-Infrared Dual-Mode Afterglow of Carbon Dots and Their Applications for Confidential Information Readout. NANO-MICRO LETTERS 2021; 13:198. [PMID: 34529154 PMCID: PMC8446126 DOI: 10.1007/s40820-021-00718-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/16/2021] [Indexed: 05/15/2023]
Abstract
Near-infrared (NIR), particularly NIR-containing dual-/multi-mode afterglow, is very attractive in many fields of application, but it is still a great challenge to achieve such property of materials. Herein, we report a facile method to prepare green and NIR dual-mode afterglow of carbon dots (CDs) through in situ embedding o-CDs (being prepared from o-phenylenediamine) into cyanuric acid (CA) matrix (named o-CDs@CA). Further studies reveal that the green and NIR afterglows of o-CDs@CA originate from thermal activated delayed fluorescence (TADF) and room temperature phosphorescence (RTP) of o-CDs, respectively. In addition, the formation of covalent bonds between o-CDs and CA, and the presence of multiple fixation and rigid effects to the triplet states of o-CDs are confirmed to be critical for activating the observed dual-mode afterglow. Due to the shorter lifetime and insensitiveness to human vision of the NIR RTP of o-CDs@CA, it is completely covered by the green TADF during directly observing. The NIR RTP signal, however, can be readily captured if an optical filter (cut-off wavelength of 600 nm) being used. By utilizing these unique features, the applications of o-CDs@CA in anti-counterfeiting and information encryption have been demonstrated with great confidentiality. Finally, the as-developed method was confirmed to be applicable to many other kinds of CDs for achieving or enhancing their afterglow performances.
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Affiliation(s)
- Yuci Wang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Kai Jiang
- International Joint Research Center for Photo-Responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, People's Republic of China.
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy of Sciences, Ningbo, 315201, People's Republic of China.
| | - Jiaren Du
- International Joint Research Center for Photo-Responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Licheng Zheng
- International Joint Research Center for Photo-Responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Yike Li
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China.
| | - Zhongjun Li
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Hengwei Lin
- International Joint Research Center for Photo-Responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, People's Republic of China.
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27
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Recent applications of quantum dots in optical and electrochemical aptasensing detection of Lysozyme. Anal Biochem 2021; 630:114334. [PMID: 34384745 DOI: 10.1016/j.ab.2021.114334] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 11/21/2022]
Abstract
Lysozyme (Lyz) is a naturally occurring enzyme that operates against Gram-positive bacteria and leads to cell death. This antimicrobial enzyme forms the part of the innate defense system of nearly all animals and exists in their somatic discharges such as milk, tears, saliva and urine. Increased Lyz level in serum is an important indication of several severe diseases and so, precise diagnosis of Lyz is an urgent need in biosensing assays. Up to know, various traditional and modern techniques have been introduced for Lyz determination. Although the traditional methods suffer from some significant limitations such as time-consuming, arduous, biochemical screening, bacterial colony isolation, selective enrichment and requiring sophisticated instrumentation or isotope labeling, some new modern approaches like aptamer-based biosensors (aptasensors) and quantum dot (QD) nanomaterials are the main goal in Lyz detection. Electrochemical and optical sensors have been highlighted because of their adaptability and capability to decrease the drawbacks of common methods. Using an aptamer-based biosensor, sensor selectivity is enhanced due to the specific recognition of the analyte. Thereby, in this review article, the recent advances and achievements in electrochemical and optical aptasensing detection of Lyz based on different QD nanomaterials and detection methods have been discussed in detail.
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28
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Uriarte D, Vidal E, Canals A, Domini CE, Garrido M. Simple-to-use and portable device for free chlorine determination based on microwave-assisted synthesized carbon dots and smartphone images. Talanta 2021; 229:122298. [PMID: 33838783 DOI: 10.1016/j.talanta.2021.122298] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/04/2021] [Accepted: 03/05/2021] [Indexed: 12/26/2022]
Abstract
A new portable and simple 3D printed device was designed for free chlorine determination in water samples. The analytical method was based on the quenching caused by free chlorine on the fluorescence emission of the carbon dots (CD) synthesized from citric acid and urea. The fluorescence was captured through the camera of a smartphone, which was coupled to the 3D printed device, and the images were processed using the RGB system by the ImageJ 1.51q software. The proposed method was selective and precise (RSD% 4.6, for n = 6), and the trueness of the results was evaluated by comparing the results obtained with those recovered by the spectrophotometric method 4500-Cl G (standard method), with good agreement between them. Moreover, the remarkable correlation between the CD signal and the free chlorine concentration resulted in a determination with low detection limits (limit of detection of 6 μg L-1 and limit of quantification of 20 μg L-1). Therefore, the new method and the related portable device could be considered a fast, economical and reliable alternative for the on-site determination of free chlorine in water samples.
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Affiliation(s)
- D Uriarte
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina
| | - E Vidal
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina
| | - A Canals
- Departamento de Química Analítica, Nutrición y Bromatología, Instituto Universitario de Materiales, Universidad de Alicante, Apdo. 99, 03080, Alicante, Spain
| | - C E Domini
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina.
| | - M Garrido
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina.
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29
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Tsai IH, Li JT, Chang CW. Effects of Sonication and Hydrothermal Treatments on the Optical and Chemical Properties of Carbon Dots. ACS OMEGA 2021; 6:14174-14181. [PMID: 34124440 PMCID: PMC8190798 DOI: 10.1021/acsomega.1c00765] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/12/2021] [Indexed: 06/12/2023]
Abstract
In our study, we have tested the effects of sonication and hydrothermal treatments on the properties of carbon dots synthesized from a microwave-assisted method (C-dotsMW). When the carbon dots are sonicated in an aerobic environment, the fluorescence quantum yield decreases drastically because the molecular fluorophores attached to the surface of the carbon dots are oxidized during the sonication process. Meanwhile, the sonicated C-dotsMW also lose their Hg2+ ion sensing and photoreduction activity due to the oxidization of surface functional groups. After the hydrothermal treatment, the fluorescence quantum yield of C-dotsMW increases due to the formation of new fluorophores; however, the Hg2+ ion sensitivity and photoreduction activity of C-dotsMW decrease significantly due to the oxidization of surface functional groups. By autoclaving the C-dotsMW at 100 °C, we have demonstrated that we can enhance the fluorescence quantum yield of C-dotsMW without losing their Hg2+ ion sensitivity. This finding can be used to improve the fluorescence quantum yield of the fluorescent ion sensor based on C-dots.
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Affiliation(s)
- I-Hua Tsai
- Department of Chemistry, National Changhua University of Education, No. 1 Jin-De Road, Changhua City 50058, Taiwan
| | - Jyun-Ting Li
- Department of Chemistry, National Changhua University of Education, No. 1 Jin-De Road, Changhua City 50058, Taiwan
| | - Chih-Wei Chang
- Department of Chemistry, National Changhua University of Education, No. 1 Jin-De Road, Changhua City 50058, Taiwan
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30
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Alam AU, Clyne D, Lush W, Deen MJ. A reusable, reagent-less free chlorine sensor using gold thin film electrode. Analyst 2021; 146:2626-2631. [PMID: 33656507 DOI: 10.1039/d1an00038a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Free chlorine is widely used as a disinfectant in the water industry. Accurate monitoring of the residual free chlorine concentration in water cycles is critical to maintain public health safety. Here, we report on a thin gold film-based reusable and reagent-less free chlorine sensor. A gold thin film of 300 nm thickness was deposited on a polyimide tape, which was placed on a glass substrate and a simple Styrofoam adhesive tape was used to cover the film and expose 0.36 cm2 circular area as the sensing surface. The sensor showed a high sensitivity of 0.327 μA ppm-1, with a linear range of 0 to 6 ppm, and an accuracy of <0.1 ppm with high selectivity in the presence of commonly interfering ions. The sensor response time was 50 s with a negligible hysteresis of 0.06 ppm. The sensor showed very little change in output current in the pH range between 5.2 to 8.4, and temperature range of 20 to 30 °C. Therefore, the sensor operation is reagent-less, does not need frequent calibration, and showed consistent sensing performance with real water samples. The simple fabrication, ease-of-use and reliable sensing performance of the proposed sensor shows feasibility for mass-production and application in remote and resource-limited areas.
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Affiliation(s)
- Arif Ul Alam
- Electrical and Computer Engineering, McMaster University, 1280 Main St. W., Hamilton, ON L8S 4 K1, Canada.
| | - Dennis Clyne
- Electrical and Computer Engineering, McMaster University, 1280 Main St. W., Hamilton, ON L8S 4 K1, Canada.
| | - Will Lush
- School of Biomedical Engineering, McMaster University, 1280 Main St. W., Hamilton, ON L8S 4 K1, Canada and Environmental Bio-Detection Products Inc., 735 Griffith Ct, Burlington, ON L7L 5R9, Canada
| | - M Jamal Deen
- Electrical and Computer Engineering, McMaster University, 1280 Main St. W., Hamilton, ON L8S 4 K1, Canada. and School of Biomedical Engineering, McMaster University, 1280 Main St. W., Hamilton, ON L8S 4 K1, Canada
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31
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Seymour I, O’Sullivan B, Lovera P, Rohan JF, O’Riordan A. Elimination of Oxygen Interference in the Electrochemical Detection of Monochloramine, Using In Situ pH Control at Interdigitated Electrodes. ACS Sens 2021; 6:1030-1038. [PMID: 33615772 PMCID: PMC8815066 DOI: 10.1021/acssensors.0c02264] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Disinfection
of water systems by chloramination is a method frequently
used in North America as an alternative to chlorination. In such a
case, monochloramine is used as the primary chlorine source for disinfection.
Regular monitoring of the residual concentrations of this species
is essential to ensure adequate disinfection. An amperometric sensor
for monochloramine would provide fast, reagent-free analysis; however,
the presence of dissolved oxygen in water complicates sensor development.
In this work, we used in-situ pH control as a method to eliminate
oxygen interference by conversion of monochloramine to dichloramine.
Unlike monochloramine, the electrochemical reduction of dichloramine
occurs outside the oxygen reduction potential window and is therefore
not affected by the oxygen concentration. Potential sweep methods
were used to investigate the conversion of monochloramine to dichloramine
at pH 3. The pH control method was used to calibrate monochloramine
concentrations between 1 and 10 ppm, with a detection limit of 0.03
ppm. Tests were carried out in high alkalinity samples, wherein it
was found that the sensitivity of this method effectively remained
unchanged. Monochloramine was also quantified in the presence of common
interferents (copper, phosphate, and iron) which also had no significant
impact on the analysis.
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Affiliation(s)
- Ian Seymour
- Tyndall National Institute, Cork T12 R5CP, Ireland
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32
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Ku T, Hao F, Yang X, Rao Z, Liu QS, Sang N, Faiola F, Zhou Q, Jiang G. Graphene Quantum Dots Disrupt Embryonic Stem Cell Differentiation by Interfering with the Methylation Level of Sox2. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:3144-3155. [PMID: 33569944 DOI: 10.1021/acs.est.0c07359] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The tremendous potential for graphene quantum dots (GQDs) in biomedical applications has led to growing concerns of their health risks in human beings. However, present studies mainly focused on oxidative stress, apoptosis, and other general toxicity effects; the knowledge on the developmental toxicity and the related regulatory mechanisms is still far from sufficient. Our study revealed the development retardation of mouse embryonic stem cells (mESCs) caused by GQDs with a novel DNA methylation epigenetic mechanism. Specifically, GQDs were internalized into cells mainly via energy-dependent endocytosis, and a significant fraction of internalized GQDs remained in the cells even after a 48-h clearance period. Albeit with unobservable cytotoxicity or any influences on cell pluripotency, significant retardation was found in the in vitro differentiation of the mESCs into embryoid bodies (EBs) with the upregulation of Sox2 levels in GQD pretreatment groups. Importantly, this effect could be contributed by GQD-induced inhibition in CpG methylation of Sox2 through altering methyltransferase and demethyltransferase transcriptional expressions, and the demethyltransferase inhibitor, bobcat339 hydrochloride, reduced GQD-induced upregulation of Sox2. The current study first demonstrated that GQDs compromised the differentiation program of the mESCs, potentially causing development retardation. Exposure to this nanomaterial during gestation or early developmental period would cause adverse health risks and is worthy of more attention.
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Affiliation(s)
- Tingting Ku
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan 030006, China
| | - Fang Hao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xiaoxi Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Ziyu Rao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Qian S Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Nan Sang
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan 030006, China
| | - Francesco Faiola
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qunfang Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China
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33
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Colorimetric Determination of Chloridion in Domestic Water Based on the Wavelength Shift of CsPbBr3 Perovskite Nanocrystals via Halide Exchange. JOURNAL OF ANALYSIS AND TESTING 2021. [DOI: 10.1007/s41664-021-00160-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
AbstractCubic phase CsPbBr3 perovskite nanocrystals (PNCs) was prepared by a high-temperature hot-injection method. The high photoluminescence quantum yield (PLQY) of as-prepared CsPbBr3 PNCs was 87%, which can be used for the determination of chloridion in domestic water samples based on their wavelength-shift characteristics via halide exchange. The proposal approach for the determination of chloridion reveals a linear correlation ranged from 10 to 200 μM of the chloridion concentration and the wavelength shift of CsPbBr3 PNCs with a correlation coefficient of R2 = 0.9956. The as-mentioned method reveals neglectable responses towards those co-existing ions in the water aside from chloridion, due to the quick exchange between Cl and Br and the outstanding color change caused by wavelength shift. The strategy has been applied to the determination of chloridion in water samples with the recoveries of 98.9–104.2% and the limit of detection (LOD) of 4 μM. These results show that the suggested approach is promising for the development of novel fluorescence detection for chloridion in water.
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34
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Gaffney EM, Simoska O, Minteer SD. The Use of Electroactive Halophilic Bacteria for Improvements and Advancements in Environmental High Saline Biosensing. BIOSENSORS-BASEL 2021; 11:bios11020048. [PMID: 33673343 PMCID: PMC7917972 DOI: 10.3390/bios11020048] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 01/20/2023]
Abstract
Halophilic bacteria are remarkable organisms that have evolved strategies to survive in high saline concentrations. These bacteria offer many advances for microbial-based biotechnologies and are commonly used for industrial processes such as compatible solute synthesis, biofuel production, and other microbial processes that occur in high saline environments. Using halophilic bacteria in electrochemical systems offers enhanced stability and applications in extreme environments where common electroactive microorganisms would not survive. Incorporating halophilic bacteria into microbial fuel cells has become of particular interest for renewable energy generation and self-powered biosensing since many wastewaters can contain fluctuating and high saline concentrations. In this perspective, we highlight the evolutionary mechanisms of halophilic microorganisms, review their application in microbial electrochemical sensing, and offer future perspectives and directions in using halophilic electroactive microorganisms for high saline biosensing.
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35
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Sun YQ, Cheng Y, Yin XB. Dual-Ligand Lanthanide Metal-Organic Framework for Sensitive Ratiometric Fluorescence Detection of Hypochlorous Acid. Anal Chem 2021; 93:3559-3566. [PMID: 33570910 DOI: 10.1021/acs.analchem.0c05040] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Sensitivity, selectivity, visible detection, and rapid response are the main concerns for an analytical method. Herein, we reported a metal-organic framework (MOF)-based ratiometric fluorescence detection strategy for hypochlorous acid (HClO). The MOF was prepared with dual ligands, 2-aminoterephthalic acid (BDC-NH2) and dipicolinic acid (DPA) and Eu3+ ions as a metal node, denoted as Eu-BDC-NH2/DPA. The dual-ligand strategy realized the dual emission for ratiometric sensing and visual detection, adjusted the size and morphology of MOFs to obtain a good dispersion for a rapid response, and provided an amino group for the special recognition of HClO. Thus, the MOF exhibited a dual emission derived from BDC-NH2 and Eu3+ ions at 433 and 621 nm, respectively, under a single excitation at 270 nm. A hydrogen bond forms between an -NH2 group and HClO to weaken the blue fluorescence at 433 nm, while the antenna effect emission from Eu3+ ions kept stable, so ratiometric sensing was realized with an easy-to-differentiate color change for visible detection. The ratiometric sensing showed a self-calibration effect and reduced the background. Thus, the high sensitivity, visual detection, low detection limit (37 nM), and short response time (within 20 s) for the detection of HClO were realized with the MOF as a probe. The analysis of real samples demonstrated the practical application of the MOF for HClO. The introduction of mixed ligands is an effective strategy to regulate the emission behaviors of MOFs for the improved analytical performance.
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Affiliation(s)
- Yi-Qing Sun
- State Key Laboratory of Medicinal Chemical Biology and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yue Cheng
- State Key Laboratory of Medicinal Chemical Biology and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xue-Bo Yin
- State Key Laboratory of Medicinal Chemical Biology and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
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36
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Feng F, Miao C, Zhang Y, Huang Z, Weng S. Positively Charged and
pH
‐sensitive Carbon Dots for Fluorescence Detection of Copper Ion. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.12178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Feng Feng
- Department of Pharmacy Fujian Provincial Governmental Hospital, Affiliated Hospital of Fujian Health College Fuzhou 350003 China
| | - Chenfang Miao
- Department of Pharmaceutical Analysis, School of Pharmacy Fujian Medical University Fuzhou 350122 China
| | - Yalan Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy Fujian Medical University Fuzhou 350122 China
- Department of Pharmacy The Second Affiliated Hospital of Fujian Medical University Quanzhou Fujian 362000 China
| | - Zhengjun Huang
- Department of Pharmaceutical Analysis, School of Pharmacy Fujian Medical University Fuzhou 350122 China
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, School of Pharmacy Fujian Medical University Fuzhou 350122 China
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37
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Zhou M, Li T, Xing C, Liu Y, Zhao H. Membrane-Based Portable Colorimetric Gaseous Chlorine Sensing Probe. Anal Chem 2020; 93:769-776. [PMID: 33320532 DOI: 10.1021/acs.analchem.0c02997] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Highly toxic chlorine gas imposes serious health risks in the workplace. The ability to on-site, real-time monitoring of instantaneous and time-weighted average (TWA) chlorine gas concentrations in a simple, sensitive, accurate, and reliable manner would be highly beneficial to improve workplace health and safety. Here, we propose and experimentally validate a gaseous chlorine detection principle based on a N,N-diethyl-p-phenylenediamine sulfate salt/Cl2 colorimetric reaction-controlled membrane process to regulate the gaseous chlorine transport across a gas-permeable membrane that enables the establishment of a time-resolved analytical relationship to quantify chlorine concentration by multidata points with dramatically enhanced accuracy and reliability. A gas-permeable membrane-based portable colorimetric gaseous chlorine sensing probe (MCSP) was designed and fabricated. The MCSP embedded the proposed analytical principle that is capable of real-time continuous monitoring of the instantaneous and TWA chlorine gas concentrations within an analytical range of 0.009-2.058 mg L-1 without the need for on-going calibration, which could be a useful analytical tool for managing the toxic chlorine gas-imposed health risks in workplaces.
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Affiliation(s)
- Ming Zhou
- Centre for Clean Environment and Energy, Griffith University, Gold Coast, QLD 4215, Australia
| | - Tianling Li
- Collaborative Innovation Centre of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, P. R. China
| | - Chao Xing
- Centre for Clean Environment and Energy, Griffith University, Gold Coast, QLD 4215, Australia
| | - Yang Liu
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - Huijun Zhao
- Centre for Clean Environment and Energy, Griffith University, Gold Coast, QLD 4215, Australia
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38
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Shi L, Zhou G, Xiang X, Zhang Z, Jia Y, Liu P, Li Z. Nitrogen-sulfur co-doped pH-insensitive fluorescent carbon dots for high sensitive and selective hypochlorite detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 242:118721. [PMID: 32717526 DOI: 10.1016/j.saa.2020.118721] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 07/02/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
Carbon dots (CDs) are novel fluorescent carbon nanomaterial with exceptional properties and have drawn great attention in recent years. However, the preparation and applications of high-quality carbon dots remain challenging. Here, we describe a simple hydrothermal synthesis route using citric acid as a carbon source for stable fluorescent CDs. The CDs are modified with glutathione and exhibit high fluorescent quantum yields (30.2%) and excellent photo-stability. In addition, the fluorescence intensity of CDs remains stable over a wide range of pH values (3-12). Hypochlorite (ClO-) can effectively quench the fluorescence of the CDs by destroying the pyrrolic ring and conjugate structure of the CDs. Thus, the CDs can be used to detect ClO-. Under optimized conditions, the fluorescence intensity changes of CDs correspond selectively to ClO- in the range of 100-800 nmol/L with a LOD of 16 nmol/L. Practical applications of the proposed method for free chlorine detection in tap water show similar results and recovery compared to the standard DPD-based method. These results suggest that the pH-insensitive CDs prepared via this facile procedure are a promising chemosensor for free chlorine and have great potential in analytical applications.
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Affiliation(s)
- Liyang Shi
- Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Guohua Zhou
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes, Lingnan Normal University, Zhanjiang, Guangdong 524048, China.
| | - Xia Xiang
- Department of Product Processing and Nutriology, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Ministry of Agriculture Key Laboratory of Oil Crops Biology, Wuhan 430062, China
| | - Zhen Zhang
- Department of Product Processing and Nutriology, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Ministry of Agriculture Key Laboratory of Oil Crops Biology, Wuhan 430062, China
| | - Yongmei Jia
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes, Lingnan Normal University, Zhanjiang, Guangdong 524048, China.
| | - Peilian Liu
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes, Lingnan Normal University, Zhanjiang, Guangdong 524048, China.
| | - Zhiguo Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes, Lingnan Normal University, Zhanjiang, Guangdong 524048, China
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39
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Abbas A, Tabish TA, Bull SJ, Lim TM, Phan AN. High yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for Fe 3+ sensing. Sci Rep 2020; 10:21262. [PMID: 33277551 PMCID: PMC7718218 DOI: 10.1038/s41598-020-78070-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 10/15/2020] [Indexed: 02/07/2023] Open
Abstract
Graphene quantum dots (GQDs), a novel type of zero-dimensional fluorescent materials, have gained considerable attention owing to their unique optical properties, size and quantum confinement. However, their high cost and low yield remain open challenges for practical applications. In this work, a low cost, green and renewable biomass resource is utilised for the high yield synthesis of GQDs via microwave treatment. The synthesis approach involves oxidative cutting of short range ordered carbon derived from pyrolysis of biomass waste. The GQDs are successfully synthesised with a high yield of over 84%, the highest value reported to date for biomass derived GQDs. As prepared GQDs are highly hydrophilic and exhibit unique excitation independent photoluminescence emission, attributed to their single-emission fluorescence centre. As prepared GQDs are further modified by simple hydrothermal treatment and exhibit pronounced optical properties with a high quantum yield of 0.23. These modified GQDs are used for the highly selective and sensitive sensing of ferric ions (Fe3+). A sensitive sensor is prepared for the selective detection of Fe3+ ions with a detection limit of as low as 2.5 × 10-6 M. The utilisation of renewable resource along with facile microwave treatment paves the way to sustainable, high yield and cost-effective synthesis of GQDs for practical applications.
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Affiliation(s)
- Aumber Abbas
- School of Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Tanveer A Tabish
- UCL Cancer Institute, University College London, London, WC1E 6DD, UK
| | - Steve J Bull
- School of Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Tuti Mariana Lim
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
| | - Anh N Phan
- School of Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.
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40
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Graphene quantum dot-stabilized gold nanoparticles as a new colorimetric probe for in situ quantification of phenytoin in biological samples. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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41
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Effect of Synthesis Temperature of Magnetic–Fluorescent Nanoparticles on Properties and Cellular Imaging. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01720-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Zhang Z, Gao Y, Li P, Qu B, Mu Z, Liu Y, Qu Y, Kong D, Chang Q, Jing L. Highly sensitive fluorescence detection of chloride ion in aqueous solution with Ag-modified porous g-C3N4 nanosheets. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.05.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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43
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Jiang Q, jing Y, Ni Y, Gao R, Zhou P. Potentiality of carbon quantum dots derived from chitin as a fluorescent sensor for detection of ClO−. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105111] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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44
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Synthesis of enhanced fluorescent graphene quantum dots for catecholamine neurotransmitter sensing. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0507-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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45
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Elmas S, Pospisilova A, Sekulska AA, Vasilev V, Nann T, Thornton S, Priest C. Photometric Sensing of Active Chlorine, Total Chlorine, and pH on a Microfluidic Chip for Online Swimming Pool Monitoring. SENSORS 2020; 20:s20113099. [PMID: 32486236 PMCID: PMC7308966 DOI: 10.3390/s20113099] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 12/20/2022]
Abstract
A microfluidic sensor was studied for the photometric detection of active chlorine, total chlorine, and pH in swimming pool samples. The sensor consisted of a four-layer borosilicate glass chip, containing a microchannel network and a 2.2 mm path length, 1.7 mL optical cell. The chip was optimised to measure the bleaching of methyl orange and spectral changes in phenol red for quantitative chlorine (active and total) and pH measurements that were suited to swimming pool monitoring. Reagent consumption (60 mL per measurement) was minimised to allow for maintenance-free operation over a nominal summer season (3 months) with minimal waste. The chip was tested using samples from 12 domestic, public, and commercial swimming pools (indoor and outdoor), with results that compare favourably with commercial products (test strips and the N,N'-diethyl-p-phenylenediamine (DPD) method), precision pH electrodes, and iodometric titration.
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Affiliation(s)
- Sait Elmas
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
- Institute for Nanoscale Science & Technology, College of Science & Engineering, Flinders University, Sturt Road, Bedford Park, SA 5042, Australia
| | - Aneta Pospisilova
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
| | - Aneta Anna Sekulska
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
| | - Vasil Vasilev
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
| | - Thomas Nann
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
- School of Mathematical and Physical Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
| | - Stephen Thornton
- Tekelek Australia Pty Ltd., 95A Bedford St, Gillman, SA 5013, Australia;
| | - Craig Priest
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; (S.E.); (A.P.); (A.A.S.); (V.V.); (T.N.)
- School of Engineering, University of South Australia, Mawson Lakes, SA 5095, Australia
- Correspondence:
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Fluorescence Sensing Platforms for Epinephrine Detection Based on Low Temperature Cofired Ceramics. SENSORS 2020; 20:s20051429. [PMID: 32151107 PMCID: PMC7085728 DOI: 10.3390/s20051429] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/27/2020] [Accepted: 03/03/2020] [Indexed: 12/14/2022]
Abstract
A novel fluorescence-sensing pathway for epinephrine (EP) detection was investigated. The ceramic-based miniature biosensor was developed through the immobilization of an enzyme (laccase, tyrosinase) on a polymer—poly-(2,6-di([2,2′-bithiophen]-5-yl)-4-(5-hexylthiophen-2-yl)pyridine), based on low temperature cofired ceramics technology (LTCC). The detection procedure was based on the oxidation of the substrate, i.e., in the presence of the enzyme. An alternative enzyme-free system utilized the formation of a colorful complex between Fe2+ ions and epinephrine molecules. With the optimized conditions, the analytical performance illustrated high sensitivity and selectivity in a broad linear range with a detection limit of 0.14–2.10 nM. Moreover, the strategy was successfully used for an EP injection test with labeled pharmacological samples.
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Mahmoud ME, Fekry NA, Abdelfattah AM. A novel nanobiosorbent of functionalized graphene quantum dots from rice husk with barium hydroxide for microwave enhanced removal of lead (II) and lanthanum (III). BIORESOURCE TECHNOLOGY 2020; 298:122514. [PMID: 31837578 DOI: 10.1016/j.biortech.2019.122514] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/26/2019] [Accepted: 11/28/2019] [Indexed: 06/10/2023]
Abstract
In this study, rice husk was used as a sustainable source to synthesize graphene quantum dots (GQDOs) with 2D morphology. Chemical modification of GQDOs with Ba(OH)2 was followed to form a novel GQDOs-Ba nanobiosorbent with an increased number of surface hydroxyl groups. The physicochemical properties of GQDOs and GQDOs-Ba were investigated by FT-IR, SEM, TEM, TGA, and XRD. The adsorption parameters of Pb(II) and La(III) onto GQDOs-Ba were optimized using microwave sorption approach. The maximum capacity reached 3400 µmol g-1 (pH 7), and 1500 µmol g-1 (pH 5) at 15 s for Pb(II) and La(III), respectively. The adsorption isotherm models by GQDOs-Ba fitted well with Langmuir. The pseudo-second order was agreed by Pb(II) and La(III) ions. The thermodynamic studies elucidated that Pb(II) and La(III) adsorption onto GQDOs-Ba followed a spontaneous model. The GQDOs-Ba nanobiosorbent accomplished excellent removal percentages from different water samples containing lead (98.5%-99.8%) and lanthanum (94.6%-96.2%).
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Affiliation(s)
- Mohamed E Mahmoud
- Faculty of Sciences, Chemistry Department, Alexandria University, Moharram Bey, Alexandria, Egypt
| | - Nesma A Fekry
- Faculty of Sciences, Chemistry Department, Alexandria University, Moharram Bey, Alexandria, Egypt.
| | - Amir M Abdelfattah
- Faculty of Sciences, Chemistry Department, Alexandria University, Moharram Bey, Alexandria, Egypt
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Yu Y, Mei L, Shi Y, Zhang X, Cheng K, Cao F, Zhang L, Xu J, Li X, Xu Z. Ag-Conjugated graphene quantum dots with blue light-enhanced singlet oxygen generation for ternary-mode highly-efficient antimicrobial therapy. J Mater Chem B 2020; 8:1371-1382. [PMID: 31970379 DOI: 10.1039/c9tb02300c] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The increasing prevalence of antibiotic resistance highlights the need for new antibacterial drugs and, in particular, the development of alternative approaches such as photodynamic therapy (PDT) and photothermal therapy (PTT) to manage this growing issue. In the present study, a broad-spectrum antibacterial system was produced in which Ag nanoparticle-conjugated graphene quantum dots (GQD-AgNP) were utilised as a blue light-enhanced nanotherapeutic for efficient ternary-mode antimicrobial therapy. The successful conjugation of AgNPs onto the surface of GQDs can significantly improve the production of reactive oxygen species in light-activatable GQDs and the transformation of light energy to hyperthermia with high efficiency. There was a remarkable increase in the sample temperature of nearly 40 °C via photoexcitation after only 10 min of 450 nm laser exposure (14.2 mW cm-2). The hybrids exhibited much more efficient bactericidal capability against both Gram-negative and Gram-positive bacteria compared with GQDs alone, using 450 nm light irradiation. This is likely a consequence of their enhanced PDT, concomitant PTT, and the synergistic function of AgNPs. The antibacterial mechanism of the new-style nanocomposites was found to irreversibly destroy the bacterial membrane structure, leading to the leaking out of the cytoplasmic contents and the death of the bacteria. At low doses, the biocompatible GQD-AgNP hybrids promoted healing in bacteria-infected rat wounds, with negligible adverse impact to the normal tissue, indicating a promising future for combined photodynamic and photothermal antibacterial applications in clinical medicine.
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Affiliation(s)
- Yunjian Yu
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, P. R. China
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Zhang H, Gao Y, Jiao Y, Lu W, Shuang S, Dong C. Highly sensitive fluorescent carbon dots probe with ratiometric emission for the determination of ClO−. Analyst 2020; 145:2212-2218. [DOI: 10.1039/c9an02570g] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A ratiometric fluorescent N,S co-doped carbon dots (N,S-CD) probe for ClO− has been facilely obtained via a one-step hydrothermal method.
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Affiliation(s)
- Huilin Zhang
- College of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- P. R. China
| | - Yifang Gao
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- P. R. China
| | - Yuan Jiao
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- P. R. China
| | - Wenjing Lu
- College of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- P. R. China
| | - Shaomin Shuang
- College of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- P. R. China
| | - Chuan Dong
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- P. R. China
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50
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Zhang H, Li C. Pillararene-functionalised graphene nanomaterials. RSC Adv 2020; 10:18502-18511. [PMID: 35517199 PMCID: PMC9053726 DOI: 10.1039/d0ra02964e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 04/23/2020] [Indexed: 01/02/2023] Open
Abstract
Pillararene-modified graphene materials integrate the advantages of both graphene and pillararenes; e.g., the cavity of pillararenes can recognise suitably sized electron-deficient and hydrophobic guest molecules via host–guest interactions, while the graphene composite is able to exhibit unique physiochemical properties including inertness, nanoscale, electrical and thermal structural properties. Those novel organic–inorganic hybrid composites can be efficiently prepared via both covalent and noncovalent bonds by classic organic reactions and supramolecular interactions, respectively. Pillararene-functionalised graphene materials have been used in various applications, such as electrochemical sensing guest molecules, performing as the platform for fluorescent probes, carrying out fluorescence quenching as the sensor, biosensing toxic molecules in cells, Raman and fluorescence bioimaging of cancer cells, photoacoustic and ultrasound imaging, as well as storage materials and reactors in energy fields. The current research progress on diverse pillararene derivative functionalised graphene materials, including different synthesis strategies and various applications, is reviewed.![]()
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Affiliation(s)
- Huacheng Zhang
- School of Chemical Engineering and Technology
- Xi'an Jiaotong University
- Xi'an
- China
| | - Chao Li
- Department of Laboratory
- Shandong University Hospital
- Jinan 250100
- China
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