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Majdoub M, Sengottuvelu D, Nouranian S, Al-Ostaz A. Graphitic Carbon Nitride Quantum Dots (g-C 3N 4 QDs): From Chemistry to Applications. CHEMSUSCHEM 2024; 17:e202301462. [PMID: 38433108 DOI: 10.1002/cssc.202301462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/05/2024]
Abstract
Since their emergence in 2014, graphitic carbon nitride quantum dots (g-C3N4 QDs) have attracted much interest from the scientific community due to their distinctive physicochemical features, including structural, morphological, electrochemical, and optoelectronic properties. Owing to their desirable characteristics, such as non-zero band gap, ability to be chemically functionalized or doped, possessing tunable properties, outstanding dispersibility in different media, and biocompatibility, g-C3N4 QDs have shown promise for photocatalysis, energy devices, sensing, bioimaging, solar cells, optoelectronics, among other applications. As these fields are rapidly evolving, it is very strenuous to pinpoint the emerging challenges of the g-C3N4 QDs development and application during the last decade, mainly due to the lack of critical reviews of the innovations in the g-C3N4 QDs synthesis pathways and domains of application. Herein, an extensive survey is conducted on the g-C3N4 QDs synthesis, characterization, and applications. Scenarios for the future development of g-C3N4 QDs and their potential applications are highlighted and discussed in detail. The provided critical section suggests a myriad of opportunities for g-C3N4 QDs, especially for their synthesis and functionalization, where a combination of eco-friendly/single step synthesis and chemical modification may be used to prepare g-C3N4 QDs with, for example, enhanced photoluminescence and production yields.
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Affiliation(s)
- Mohammed Majdoub
- Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, United States
| | - Dineshkumar Sengottuvelu
- Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, United States
| | - Sasan Nouranian
- Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, United States
- Department of Chemical Engineering, University of Mississippi, University, MS 38677, United States
| | - Ahmed Al-Ostaz
- Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, United States
- Department of Civil Engineering, University of Mississippi, University, MS 38677, United States
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2
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Momina M, Ahmad K. Synthesis of biodegradable sodium alginate-based carbon dot-nanomagnetic composite (SA-FOCD) for enhanced water remediation using ANN modelling, RSM optimization, and economic analysis. Int J Biol Macromol 2024; 263:130253. [PMID: 38368976 DOI: 10.1016/j.ijbiomac.2024.130253] [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] [Received: 09/11/2023] [Revised: 12/04/2023] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
This study involves the synthesis of a magnetic‑sodium alginate bio-composite embedded with carbon dots, designed to eliminate pollutants like dyes and metal ions and tackle environmental issues. The modified particles are effectively incorporated into the biopolymers for improved adsorption and regeneration performance using an economically viable and environmentally sustainable process. The composite's surface morphology and chemical structure have been extensively characterized through various analytical techniques. It has been found that CD-modified nanoparticles demonstrate good dispersion, abundance in functional groups, and excellent adsorption performance. The adsorption process variables have been optimized using Response Surface Methodology (RSM), resulting in a maximum adsorption capacity of 232.44 mg/g achieved under optimal conditions. An Artificial Neural Network (ANN) model with a topology of 3-5-5-1 is constructed to predict the adsorption capacity of composite, exhibiting superior predictive performance. The statistical physical model was also performed to understand the adsorption mechanism and orientation of dye molecules attached to the surface of the composite. The adsorption capacity using statistical physical method was found to be 467.57 mg/g. The composite exhibits good adsorption and regeneration performance in the column adsorption study. Furthermore, a detailed cost analysis of the synthesized composite was performed, ensuring its economic viability in real-world applications.
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Affiliation(s)
- Momina Momina
- Department of Civil Engineering, Jamia Millia Islamia, New Delhi-110025, India.
| | - Kafeel Ahmad
- Department of Civil Engineering, Jamia Millia Islamia, New Delhi-110025, India
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Al-Jaf SH, Omer KM. Dual-spot ratiometric microfluidic paper-based analytical device for accuracy and precision improvement. Talanta 2024; 269:125433. [PMID: 38008019 DOI: 10.1016/j.talanta.2023.125433] [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] [Received: 07/03/2023] [Revised: 11/09/2023] [Accepted: 11/16/2023] [Indexed: 11/28/2023]
Abstract
Instrumental and environmental fluctuations are common sources of error in smartphone-based optical detection, significantly affecting the accuracy of analytical measurements. In this regard, spotting the sample and reference simultaneously and in close proximity compensates for the fluctuations. This "dual-spot" design is similar to the double-beam technique used in spectrophotometry, which reduces fluctuations in the results. The underlying hypothesis is that any instrumental and/or environmental factors influencing the color intensity in the detection zones will similarly impact the color intensity in the control zone under the same conditions. To test our design, a ratiometric microfluidic paper-based analytical device (μPAD), functionalized with a mixture of green-emissive carbon dots (CDs) and red-emissive ethidium bromide, was developed for the selective detection of ascorbic acid (AA). The green emission of the CDs is quenched by both AA and Fe3+; NaF was thus loaded onto the 3D connector as a masking agent to remove the interference effect of the Fe3+ ions. The color variations were monitored under a UV lamp, using a smartphone to capture the images, and the RGB intensities were processed using the Color Grab application. The proposed double-spot method greatly enhanced the analytical precision and accuracy of the device. A linear working range from 0 to 125 μM was obtained, and the limit of detection was 2.71 μM. The μPAD was successfully used for the detection of AA in human serum, with recoveries from 87.27 to 98.52 %.
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Affiliation(s)
- Sabah H Al-Jaf
- Department of Chemistry, College of Science, University of Sulaimani, 46002, Sulaimani City, Kurdistan Region, Iraq; Department of Chemistry, College of Science, University of Garmian, Darbandikhan Road, 46021, Kalar City, Sulaimaniyah Province, Kurdistan of Iraq, Iraq
| | - Khalid M Omer
- Department of Chemistry, College of Science, University of Sulaimani, 46002, Sulaimani City, Kurdistan Region, Iraq.
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Menichetti A, Mavridi-Printezi A, Mordini D, Montalti M. Polydopamine-Based Nanoprobes Application in Optical Biosensing. BIOSENSORS 2023; 13:956. [PMID: 37998131 PMCID: PMC10669744 DOI: 10.3390/bios13110956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/13/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023]
Abstract
Polydopamine (PDA), the synthetic counterpart of melanin, is a widely investigated bio-inspired material for its chemical and photophysical properties, and in the last few years, bio-application of PDA and PDA-based materials have had a dramatic increase. In this review, we described PDA application in optical biosensing, exploring its multiple roles as a nanomaterial. In optical sensing, PDA can not only be used for its intrinsic fluorescent and photoacoustic properties as a probe: in some cases, a sample optical signal can be derived by melanin generation in situ or it can be enhanced in another material thanks to PDA modification. The various possibilities of PDA use coupled with its biocompatibility will indeed widen even more its application in optical bioimaging.
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Affiliation(s)
| | | | | | - Marco Montalti
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (A.M.); (A.M.-P.); (D.M.)
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Xu C, Xiao X, Cai C, Cheng Q, Zhu L, Zhang J, Wei B, Wang H. Insight into the differences in carbon dots prepared from fish scales using conventional hydrothermal and microwave methods. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:54616-54627. [PMID: 36881236 DOI: 10.1007/s11356-023-26275-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
The preparation of carbon dots (CDs) from waste fish scales is an attractive and high-value transformation. In this study, fish scales were used as a precursor to prepare CDs, and the effects of hydrothermal and microwave methods on their fluorescence properties and structures were evaluated. The microwave method was more conducive to the self-doping of nitrogen due to rapid and uniform heating. However, the low temperature associated with the microwave method resulted in insufficient dissolution of the organic matter in the fish scales, resulting in incomplete dehydration and condensation and the formation of nanosheet-like CDs, whose emission behavior had no significant correlation with excitation. Although the CDs prepared using the conventional hydrothermal method showed lower nitrogen doping, the relative pyrrolic nitrogen content was higher, which was beneficial in improving their quantum yield. Additionally, the controllable high temperature and sealed environment used in the conventional hydrothermal method promoted dehydration and condensation of the organic matter in the fish scales to form CDs with a higher degree of carbonization, uniform size, and higher C = O/COOH content. CDs prepared using the conventional hydrothermal method exhibited higher quantum yields and excitation wavelength-dependent emission behavior.
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Affiliation(s)
- Chengzhi Xu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Changqing Garden, Wuhan, Hubei, China
| | - Xiao Xiao
- School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Chaonan Cai
- School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Qunpeng Cheng
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Changqing Garden, Wuhan, Hubei, China
| | - Lian Zhu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Changqing Garden, Wuhan, Hubei, China
- School of Chemistry and Environmental Engineering, Hubei Minzu University, Enshi, Hubei, China
| | - Juntao Zhang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Changqing Garden, Wuhan, Hubei, China
| | - Benmei Wei
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Changqing Garden, Wuhan, Hubei, China
| | - Haibo Wang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Changqing Garden, Wuhan, Hubei, China.
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Guan X, Li Z, Geng X, Lei Z, Karakoti A, Wu T, Kumar P, Yi J, Vinu A. Emerging Trends of Carbon-Based Quantum Dots: Nanoarchitectonics and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207181. [PMID: 36693792 DOI: 10.1002/smll.202207181] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/09/2022] [Indexed: 06/17/2023]
Abstract
Carbon-based quantum dots (QDs) have emerged as a fascinating class of advanced materials with a unique combination of optoelectronic, biocompatible, and catalytic characteristics, apt for a plethora of applications ranging from electronic to photoelectrochemical devices. Recent research works have established carbon-based QDs for those frontline applications through improvements in materials design, processing, and device stability. This review broadly presents the recent progress in the synthesis of carbon-based QDs, including carbon QDs, graphene QDs, graphitic carbon nitride QDs and their heterostructures, as well as their salient applications. The synthesis methods of carbon-based QDs are first introduced, followed by an extensive discussion of the dependence of the device performance on the intrinsic properties and nanostructures of carbon-based QDs, aiming to present the general strategies for device designing with optimal performance. Furthermore, diverse applications of carbon-based QDs are presented, with an emphasis on the relationship between band alignment, charge transfer, and performance improvement. Among the applications discussed in this review, much focus is given to photo and electrocatalytic, energy storage and conversion, and bioapplications, which pose a grand challenge for rational materials and device designs. Finally, a summary is presented, and existing challenges and future directions are elaborated.
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Affiliation(s)
- Xinwei Guan
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
- School of Materials Science and Engineering, University of New South Wales (UNSW), Sydney, NSW, 2052, Australia
| | - Zhixuan Li
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Xun Geng
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Zhihao Lei
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ajay Karakoti
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Tom Wu
- School of Materials Science and Engineering, University of New South Wales (UNSW), Sydney, NSW, 2052, Australia
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, 999077, P. R. China
| | - Prashant Kumar
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Jiabao Yi
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ajayan Vinu
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
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Green synthesis and multifunctional applications of nitrogen-doped carbon quantum dots via one-step hydrothermal carbonization of Curcuma zedoaria. Anal Bioanal Chem 2023; 415:1917-1931. [PMID: 36864311 DOI: 10.1007/s00216-023-04603-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 03/04/2023]
Abstract
Low-dimensional (<10 nm) semiconductor carbon quantum dots (CQDs) have been widely used in metal ion sensing and bioimaging. Here, we used the renewable resource Curcuma zedoaria as a carbon source and prepared green carbon quantum dots with good water solubility by a hydrothermal method without any chemical reagent. At different pH values (4-6) and high NaCl concentrations, the photoluminescence of the CQDs was very stable, which indicated that they were suitable for a wide range of applications even under harsh conditions. The CQDs exhibited fluorescence quenching in the presence of Fe3+ ions, indicating their application potential as fluorescence probes for the sensitive and selective detection of Fe3+ ions. The CQDs showed high photostability, low cytotoxicity, and good hemolytic activity, and were successfully applied to bioimaging experiments, i.e. multicolor cell imaging in L-02 (human normal hepatocytes) and CHL (Chinese hamster lung) cells with and without Fe3+, as well as wash-free labeling imaging of Staphylococcus aureus and Escherichia coli. The CQDs also showed good free radical scavenging activity and demonstrated a protective effect against photooxidative damage to L-02 cells. These results indicate that CQDs obtained from medicinal herb sources have multiple potential applications in the fields of sensing, bioimaging, and even disease diagnosis.
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Sun X, He W, Liu B. Water-soluble long afterglow carbon dots/silica composites for dual-channel detection of alkaline phosphatase and multi-level information anti-counterfeiting. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:5001-5011. [PMID: 36445329 DOI: 10.1039/d2ay01587k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Water-soluble carbon dots/silica (CDs/SiO2) composites with an ultra-long lifetime of 846.9 ms and an ultra-high afterglow quantum yield of 12.1% were successfully obtained by incorporating CDs into a SiO2 network. Within the aqueous solution, the SiO2 layer isolates CDs from the surrounding oxygen. Meanwhile, hydrogen bonds and covalent bonds are formed between the CDs and SiO2, and these bonds restrict the movement and vibration of the CDs. Accordingly, the non-radiative inactivation rate of the triplet excitons of the CDs is reduced, thereby enhancing the room-temperature phosphorescence of the CDs and triggering thermally activated delayed fluorescence. The multiple properties of the material effectively protect the CDs from the external environment, making CDs/SiO2 emit a long afterglow in the solid and liquid phases. The prepared CDs/SiO2 composites have exceptional stability against strong oxidants, acids, bases, and polar solvents. The composites were successfully used in the dual-optical mode detection of alkaline phosphatase, as an anti-counterfeiting ink, and in multi-level information anti-counterfeiting and encryption.
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Affiliation(s)
- Xiangying Sun
- College of Materials Science and Engineering, Huaqiao University, Key Laboratory of Molecular Designing and Green Conversions (Fujian University), NO. 668 Jimei Avenue, Jimei District, Xiamen 361021, China.
| | - Wei He
- College of Materials Science and Engineering, Huaqiao University, Key Laboratory of Molecular Designing and Green Conversions (Fujian University), NO. 668 Jimei Avenue, Jimei District, Xiamen 361021, China.
| | - Bin Liu
- College of Materials Science and Engineering, Huaqiao University, Key Laboratory of Molecular Designing and Green Conversions (Fujian University), NO. 668 Jimei Avenue, Jimei District, Xiamen 361021, China.
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Zhang W, Jiang X, Wu Y, Jiang J, Liu X, Liu Y, Wang W, Lai J, Wang X. Emission enhancement of fluorescent glutathione-capped gold nanoclusters by cerium (III) ion-induced aggregation for sensitive detecting α-glucosidase in human serum using ratiometric fluorometry. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Li L, Zhao W, Luo L, Liu X, Bi X, Li J, Jiang P, You T. Electrochemiluminescence of Carbon‐based Quantum Dots: Synthesis, Mechanism and Application in Heavy Metal Ions Detection. ELECTROANAL 2022. [DOI: 10.1002/elan.202100221] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Libo Li
- Key Laboratory of Modern Agricultural Equipment and Technology Ministry of Education School of Agricultural Engineering Jiangsu University 212013 Zhenjiang Jiangsu China
| | - Wanlin Zhao
- Key Laboratory of Modern Agricultural Equipment and Technology Ministry of Education School of Agricultural Engineering Jiangsu University 212013 Zhenjiang Jiangsu China
| | - Lijun Luo
- Key Laboratory of Modern Agricultural Equipment and Technology Ministry of Education School of Agricultural Engineering Jiangsu University 212013 Zhenjiang Jiangsu China
| | - Xiaohong Liu
- Key Laboratory of Modern Agricultural Equipment and Technology Ministry of Education School of Agricultural Engineering Jiangsu University 212013 Zhenjiang Jiangsu China
| | - Xiaoya Bi
- Key Laboratory of Modern Agricultural Equipment and Technology Ministry of Education School of Agricultural Engineering Jiangsu University 212013 Zhenjiang Jiangsu China
| | - Jiamin Li
- Key Laboratory of Modern Agricultural Equipment and Technology Ministry of Education School of Agricultural Engineering Jiangsu University 212013 Zhenjiang Jiangsu China
| | - Panao Jiang
- Key Laboratory of Modern Agricultural Equipment and Technology Ministry of Education School of Agricultural Engineering Jiangsu University 212013 Zhenjiang Jiangsu China
| | - Tianyan You
- Key Laboratory of Modern Agricultural Equipment and Technology Ministry of Education School of Agricultural Engineering Jiangsu University 212013 Zhenjiang Jiangsu China
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Patir K, Gogoi SK. Room Temperature Phosphorescence of Chlorine Doped Carbon Nitride Dots. Front Chem 2022; 10:812602. [PMID: 35372269 PMCID: PMC8968440 DOI: 10.3389/fchem.2022.812602] [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: 11/10/2021] [Accepted: 01/31/2022] [Indexed: 12/02/2022] Open
Abstract
Metal free room temperature phosphorescent materials have been the subject of considerable attention due to their potential applications in optoelectronic devices sensing, and security and safety signage. This study discusses how efficient fluorescent and phosphorescent chlorine doped carbon nitride dots (Cl-CNDs) were prepared by thermal treatment of guanidine hydrochloride. The Cl-CNDs prepared were characterized by field emission scanning electron microscope, dynamic light scattering, PXRD, EDX, Thermo gravimetric analysis, FT-IR, and UV-Visible spectroscopy. The Cl-CNDs exhibit a long phosphorescence lifetime of 657 ms and the phosphorescence quantum yield was found to be 2.32% upon being excited at 360 nm in ambient conditions. Formation of compact coreparticles via condensation along with hydrogen bonding of Cl-CNDs by its functional groups facilitate intersystem crossing and stabilizes the triplet states, favoring room temperature phosphorescence. The cost effective preparation and tunable optical properties of Cl-CNDs may find applications in security encryption and optoelectronic devices.
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Affiliation(s)
- Khemnath Patir
- Department of Chemistry, Gauhati University, Guwahati, India
- Department of Applied Science and Humanities, Assam University, Silchar, India
| | - Sonit Kumar Gogoi
- Department of Chemistry, Gauhati University, Guwahati, India
- *Correspondence: Sonit Kumar Gogoi,
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Yan Z, Yao W, Mai K, Huang J, Wan Y, Huang L, Cai B, Liu Y. A highly selective and sensitive "on-off" fluorescent probe for detecting cadmium ions and l-cysteine based on nitrogen and boron co-doped carbon quantum dots. RSC Adv 2022; 12:8202-8210. [PMID: 35424768 PMCID: PMC8982326 DOI: 10.1039/d1ra08219a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/04/2022] [Indexed: 12/02/2022] Open
Abstract
Cadmium ions (Cd2+) have caused relatively serious pollution, threatening human health and ecosystems. l-Cysteine (l-Cys) is an essential amino acid in living organisms and concentration of l-Cys is closely related to some human diseases. In this work, we first introduced 2-amino-3-hydroxypyridine and sodium borohydride as the nitrogen source and boron source to fabricate boron and nitrogen co-doped carbon quantum dots (N,B-CQDs) with high fluorescence quantum yield (21.2%), which were synthesized through a simple, low-consumption and pollution-free one-pot hydrothermal method. The obtained N,B-CQDs are able to detect Cd2+ rapidly and sensitively through fluorescence enhancement, which may be ascribed to chelation enhanced fluorescence that is induced by the formation of the N,B-CQDs/Cd2+ complex. Simultaneously, N,B-CQDs can be used to detect l-cysteine because significant fluorescence quenching was observed when l-Cys was added into the N,B-CQDs/Cd2+ system. In the two fluorescence "turn-on" and "turn-off" processes, this fluorescent probe obtained a good linear relationship over Cd2+ concentration ranging from 2.5 µM to 22.5 µM with a detection limit of 0.45 µM, while the concentration of l-cysteine showed a linear relationship in the range of 2.5-17.5 µM with a detection limit of 0.28 µM. The sensor has been successfully used to detect Cd2+ and l-cysteine in real samples with satisfying results.
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Affiliation(s)
- Zhihong Yan
- College of Pharmacy, Guangdong Pharmaceutical University Guangzhou 510000 China
| | - Wei Yao
- College of Pharmacy, Guangdong Pharmaceutical University Guangzhou 510000 China
| | - Kang Mai
- Zhongshan Carefor Daily Necessities Ltd Zhongshan 528400 China
| | - Jiaqi Huang
- College of Pharmacy, Guangdong Pharmaceutical University Guangzhou 510000 China
| | - Yating Wan
- School of Pharmaceutical and Chemical Engineering, Guangdong Pharmaceutical University Zhongshan 528400 China
| | - Liu Huang
- School of Pharmaceutical and Chemical Engineering, Guangdong Pharmaceutical University Zhongshan 528400 China
| | - Bo Cai
- Guangzhou OPSEVE Cosmetics Co. Ltd Guangzhou 510000 China
| | - Yi Liu
- College of Pharmacy, Guangdong Pharmaceutical University Guangzhou 510000 China
- School of Pharmaceutical and Chemical Engineering, Guangdong Pharmaceutical University Zhongshan 528400 China
- Guangzhou OPSEVE Cosmetics Co. Ltd Guangzhou 510000 China
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Xu J, Cui K, Gong T, Zhang J, Zhai Z, Hou L, Zaman FU, Yuan C. Ultrasonic-Assisted Synthesis of N-Doped, Multicolor Carbon Dots toward Fluorescent Inks, Fluorescence Sensors, and Logic Gate Operations. NANOMATERIALS 2022; 12:nano12030312. [PMID: 35159657 PMCID: PMC8839126 DOI: 10.3390/nano12030312] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/07/2022] [Accepted: 01/15/2022] [Indexed: 02/01/2023]
Abstract
Over past decades, the multicolor carbon dots (M-CDs) have attracted enormous attentions due to their tunable photoluminescence and versatile applications. Herein, the nitrogen-doped (N-doped) M-CDs including green, chartreuse, and pink emissive CDs are successfully synthesized by ultrasonic treatment of kiwifruit juice with different additive reagents such as ethanol, ethylenediamine, and acetone. Owing to their strong fluorescence upon irradiation with 365 nm UV light, the highly water-soluble M-CDs present great potential in the anticounterfeit field as fluorescent inks. Particularly, the resulting green emission CDs (G-CDs) with excellent fluorescence and stability are applied as a label-free probe model for “on–off” detection of Fe3+. The fluorescence of G-CDs is significantly quenched by Fe3+ through static quenching. The nanoprobe demonstrates good selectivity and sensitivity toward Fe3+ with a detection limit of ~0.11 μM. Besides, the quenched fluorescence of G-CDs by Fe3+ can be recovered by the addition of PO43− or ascorbic acid (AA) into the CDs/Fe3+ system to realize the “off–on” fluorescent process. Furthermore, NOT and IMPLICATION logic gates are constructed based on the selection of Fe3+ and PO43− or AA as the inputs, which makes the G-CD-based sensors utilized as various logic gates at molecular level. Therefore, the N-doped M-CDs hold promising prospects as competitive candidates in monitoring the trace species, applications in food chemistry, anticounterfeit uses, and beyond.
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Ratiometric fluorescence and colorimetric dual-mode sensing platform based on carbon dots for detecting copper(II) ions and D-penicillamine. Anal Bioanal Chem 2022; 414:1651-1662. [DOI: 10.1007/s00216-021-03789-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 10/27/2021] [Accepted: 11/11/2021] [Indexed: 11/01/2022]
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Zhou C, Wu S, Qi S, Song W, Sun C. Facile and High-yield Synthesis of N-doped Carbon Quantum Dots from Biomass Quinoa Saponin for the Detection of Co 2. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2021; 2021:9732364. [PMID: 34976427 PMCID: PMC8718314 DOI: 10.1155/2021/9732364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/25/2021] [Indexed: 06/14/2023]
Abstract
Hydrothermal synthesis of carbon quantum dots (CQDs) from natural biomass is a green and sustainable route for CQDs applications in various fields. In this work, the preparation and characterization of CQDs based on quinoa saponin were investigated. The optimum synthetic conditions determined by orthogonal experiments were as follows: 2 g quinoa saponin powder and 0.04 mol ethylenediamine reacted at 200°C for 10 h. The relative fluorescence quantum yield (QY = 22.2%) can be obtained, which is higher than some results reported in the literatures. The prepared CQDs had a small and uniform size (∼2.25 nm) and exhibited excitation wavelength-dependent blue light emission behavior. The CQDs displayed excellent sensitivity for Co2+ detection along with good linear correlation ranging from 20 to 150 µM and the detection limit of 0.49 µM. The CQDs prepared in this experiment were successfully implanted into soybean sprouts for fluorescence imaging. The sprouts could grow healthily even soaked in the CQDs solution for two weeks, demonstrating the low toxicity of the CQDs. The advantages of the CQDs, such as low cost, ease of manufacture, nontoxicity, and stability, have potential applications in many areas such as metal ion detection and biosensing.
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Affiliation(s)
- Cuo Zhou
- School of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Shunwei Wu
- School of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Shenghui Qi
- School of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Weijun Song
- School of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Chunyan Sun
- School of Chemical Engineering, Qinghai University, Xining 810016, China
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16
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Latief U, Ul Islam S, Khan ZMSH, Khan MS. A facile green synthesis of functionalized carbon quantum dots as fluorescent probes for a highly selective and sensitive detection of Fe 3+ ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 262:120132. [PMID: 34245967 DOI: 10.1016/j.saa.2021.120132] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/19/2021] [Accepted: 06/26/2021] [Indexed: 05/07/2023]
Abstract
In this study, we have reported an economical, easy, greener and non-toxic synthesis route of water soluble carbon quantum dots (CQDs) through hydrothermal treatment using gelatin as precursor. Under the UV lamp of wavelength 365 nm, the as-prepared CQDs exhibit strong blue fluorescence along with CIE coordinate index of (0.17, 0.14) and possess a quantum yield of 22.7% with rhodamine B as standard. The morphology of as-synthesized CQDs as investigated by TEM measurement confirmed their spherical shape and also revealed that their sizes varied in the scale of 0.5-5 nm. Furthermore, the CQDs showed excitation dependent fluorescence emission behaviour in range of 280 nm to 420 nm as a result of quantum confinement effect. Apart from this, in CQDs solution, the addition of Fe3+ ion lead to fluorescence quenching effect. These results revealed that the as-synthesized CQDs have a sensitive response towards the Fe3+ ion. The calculated limit of detection (LOD) is 0.2 μM with correlation coefficient R2 = 0.996 in the concentration range 0 to 50 μM. More remarkably, the application of CQDs for monitoring the trace level of Fe3+ ion in tap water yielded acceptable recoveries (103.33%-105%). Therefore, this work provides a novel additional fluorescent probe for the detection of Fe3+ ion in real world.
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Affiliation(s)
- Urosa Latief
- Department of Physics, Jamia Millia Islamia, New Delhi 110025, India
| | - Shafi Ul Islam
- Department of Physics, Jamia Millia Islamia, New Delhi 110025, India
| | - Zubair M S H Khan
- Department of Physics, Jamia Millia Islamia, New Delhi 110025, India
| | - Mohd Shahid Khan
- Department of Physics, Jamia Millia Islamia, New Delhi 110025, India.
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17
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Yao W, Hua Y, Yan Z, Wu C, Zhou F, Liu Y. Sulfhydryl functionalized carbon quantum dots as a turn-off fluorescent probe for sensitive detection of Hg 2. RSC Adv 2021; 11:36310-36318. [PMID: 35492750 PMCID: PMC9043377 DOI: 10.1039/d1ra06527k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/31/2021] [Indexed: 01/27/2023] Open
Abstract
Mercury ion (Hg2+) is one of the most toxic heavy metal ions and lowering the detection limit of Hg2+ is always a challenge in analytical chemistry and environmental analysis. In this work, sulfhydryl functionalized carbon quantum dots (HS-CQDs) were synthesized through a one-pot hydrothermal method. The obtained HS-CQDs were able to detect mercury ions Hg2+ rapidly and sensitively through fluorescence quenching, which may be ascribed to the formation of nonfluorescent ground-state complexes and electron transfer reaction between HS-CQDs and Hg2+. A modification of the HS-CQD surface by -SH was confirmed using Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The HS-CQDs sensing system obtained a good linear relationship over a Hg2+ concentration ranging from 0.45 μM to 2.1 μM with a detection limit of 12 nM. Delightfully, the sensor has been successfully used to detect Hg2+ in real samples with satisfactory results. This means that the sensor has the potential to be used for testing actual samples.
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Affiliation(s)
- Wei Yao
- College of Pharmacy, Guangdong Pharmaceutical University Guangzhou 510000 China
| | - Yingchen Hua
- School of Pharmaceutical and Chemical Engineering, Guangdong Pharmaceutical University Zhongshan 528400 China
| | - Zhihong Yan
- College of Pharmacy, Guangdong Pharmaceutical University Guangzhou 510000 China
| | - Chunxian Wu
- School of Pharmaceutical and Chemical Engineering, Guangdong Pharmaceutical University Zhongshan 528400 China
| | - Feiyan Zhou
- Guangzhou Baiyunshan Weiyi Industrial Co., Ltd Guangzhou 510000 China
| | - Yi Liu
- College of Pharmacy, Guangdong Pharmaceutical University Guangzhou 510000 China
- School of Pharmaceutical and Chemical Engineering, Guangdong Pharmaceutical University Zhongshan 528400 China
- Guangzhou Baiyunshan Weiyi Industrial Co., Ltd Guangzhou 510000 China
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18
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Facile synthesis of quantum dots/TiO2 photocatalyst with superior photocatalytic activity: the effect of carbon nitride quantum dots and N-doped carbon dots. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04595-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Zinin PV, Acosta-Maeda TE, Misra AK, Sharma SK. Enhancement of the Anti-Stokes Fluorescence of Hollow Spherical Carbon Nitride Nanostructures by High Intensity Green Laser. NANOMATERIALS 2021; 11:nano11102529. [PMID: 34684970 PMCID: PMC8538423 DOI: 10.3390/nano11102529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/15/2021] [Accepted: 09/23/2021] [Indexed: 12/03/2022]
Abstract
Fluorescence spectra of graphitic (g-C3N4) and spherical (s-C3N4) modifications of carbon nitride were measured as a function of green pulsed (6 ns-pulse) laser intensity. It was found that the intensity of the laser increases the maximum of the fluorescence shifts towards the anti-Stokes side of the fluorescence for s-C3N4 spherical nanoparticles. This phenomenon was not observed for g-C3N4 particles. The maximum of the anti-Stokes fluorescence in s-C3N4 nanoparticles was observed at 480 nm. The ratio of the intensity of the anti-Stokes peak (centered at 480 nm) to that of the Stokes peak (centered at 582 nm) was measured to be I484/582 = 6.4 × 10−3 at a low level of intensity (5 mW) of a green pulsed laser, whereas it rose to I484/582 = 2.27 with a high level of laser intensity (1500 mW).
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Affiliation(s)
- Pavel V. Zinin
- Scientific Technological Center of Instrumentation, Russian Academy of Sciences, Butlerova Str. 15, 117342 Moscow, Russia
- Correspondence:
| | - Tayro E. Acosta-Maeda
- Hawaii Institute of Geophysics and Planetology, University of Hawaiʻi, 1680 East-West Road, Honolulu, HI 96822, USA; (T.E.A.-M.); (A.K.M.); (S.K.S.)
| | - Anupam K. Misra
- Hawaii Institute of Geophysics and Planetology, University of Hawaiʻi, 1680 East-West Road, Honolulu, HI 96822, USA; (T.E.A.-M.); (A.K.M.); (S.K.S.)
| | - Shiv K. Sharma
- Hawaii Institute of Geophysics and Planetology, University of Hawaiʻi, 1680 East-West Road, Honolulu, HI 96822, USA; (T.E.A.-M.); (A.K.M.); (S.K.S.)
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20
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One-step synthesis of nitrogen-doped multi-emission carbon dots and their fluorescent sensing in HClO and cellular imaging. Mikrochim Acta 2021; 188:330. [PMID: 34498123 DOI: 10.1007/s00604-021-04973-0] [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: 05/26/2021] [Accepted: 08/04/2021] [Indexed: 10/20/2022]
Abstract
Tunable multicolor carbon dots (CDs) with a quantum yield reach up to 35% were generated directly from rhodamine and urea via one-step hydrothermal approach and purified through silica gel column chromatography. Transmission electron microscopy images reveal that the as-prepared CDs possess a small size distribution below 10 nm with bright blue, green, and yellow color emission, designated as b-CDs, g-CDs, and y-CDs, respectively. The in-depth investigations reveal that the multicolor emission CDs with different fraction displays fluorescence emission wavelength ranges from 398 nm (b-CDs), 525 nm (g-CDs), to 553 nm (y-CDs) which could be well modulated by controlling the amount of heteroatom nitrogen especially amino nitrogen onto their surface structures. Further experiments verify the important role of nitrogen content by using rhodamine solely or substituting urea with sulfur containing compounds as precursors to produce corresponding CDs since the performance is lower than that of urea incorporation. Theoretical calculation results also reveal that the increasing amount of amino nitrogen into their surface structures of b-CDs, g-CDs to y-CDs is responsible for reduced band gaps energy, which result in the redshifted wavelength. Benefiting from the excellent photoluminescence properties, wide pH variation range, high photo stability, and low toxicity, these CDs were employed for HClO sensing at 553 nm within the range 5 to 140 μM with a limit of detection (LOD) of 0.27 ± 0.025 μM (n = 3) and multicolor cellular imaging in HeLa cells. Tunable multicolor carbon dots (CDs) were generated directly from rhodamine and urea via one-step hydrothermal approach and purified through silica gel column chromatography. The as-prepared CDs exhibit bright blue, green, and yellow color emission which could be well modulated by controlling the increasing incorporation of heteroatom nitrogen especially amino nitrogen into their surface structures. These CDs were employed for HClO sensing and demonstrated to multicolor cellular imaging in HeLa cells.
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21
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Bi X, Hou X, Zhang X, Liu W, Ren G, Xu S, Wang H, Wei W. Facile Synthesis of Green Fluorescent Carbon Dots and Application for Iron (III) Detection, Patterning and Cell Imaging. ChemistrySelect 2021. [DOI: 10.1002/slct.202100286] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xiaoyan Bi
- Second Hospital of Shanxi Medical University Shanxi Medical University Taiyuan 030001 China
| | - Xiaoyu Hou
- School of Basic Medical Sciences Shanxi Medical University Taiyuan 030001 China
| | - Xueyun Zhang
- School of Basic Medical Sciences Shanxi Medical University Taiyuan 030001 China
| | - Wen Liu
- School of Basic Medical Sciences Shanxi Medical University Taiyuan 030001 China
| | - Guodong Ren
- School of Basic Medical Sciences Shanxi Medical University Taiyuan 030001 China
| | - Shuming Xu
- Children's Hospital of Shanxi Taiyuan 030013 China
| | - Haojiang Wang
- School of Basic Medical Sciences Shanxi Medical University Taiyuan 030001 China
| | - Wenlong Wei
- Department of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 China
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22
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Wang X, Gao S, Xu N, Xu L, Chen S, Mei C, Xu C. Facile synthesis of phosphorus‐nitrogen doped carbon quantum dots from cyanobacteria for bioimaging. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.23927] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xi Wang
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
| | - Shiyu Gao
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
| | - Nan Xu
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
| | - Li Xu
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
| | - Sainan Chen
- Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Academy of Environmental Science Nanjing People's Republic of China
| | - Changtong Mei
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
| | - Changyan Xu
- Jiangsu Co‐Innovation Centre of Efficient Processing and Utilization of Forest Products, Nanjing Forestry University Nanjing People's Republic of China
- College of Materials Science and Engineering, Nanjing Forestry University Nanjing People's Republic of China
- Jiangsu Province Key Laboratory of Green Biomass‐based Fuels and Chemicals Nanjing People's Republic of China
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23
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Affiliation(s)
- Wei Jiang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University 11 Fucheng Road Beijing 100048 China
| | - Yuan Zhao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University 11 Fucheng Road Beijing 100048 China
| | - Xuecheng Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University 11 Fucheng Road Beijing 100048 China
| | - Huilin Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University 11 Fucheng Road Beijing 100048 China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University 11 Fucheng Road Beijing 100048 China
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24
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Jaiswal A, Kumar A, Prakash R. Facile synthesis of doped C xN y QDs as photoluminescent matrix for direct detection of hydroquinone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 246:119019. [PMID: 33068899 DOI: 10.1016/j.saa.2020.119019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/21/2020] [Accepted: 09/26/2020] [Indexed: 06/11/2023]
Abstract
In this work, we are reporting facile hydrothermal synthesis of a highly photoluminescent doped carbon nitride quantum dots (CxNyQDs) and implied it for direct detection of hydroquinone (H2Q) by photoluminescence quenching phenomenon. Oxygen and sulphur moieties are regarded as dopant species in CxNyQDs and sourced from cheap solid precursors viz. cysteine and maleic acid. Morphological studies of CxNyQDs have done by SEM and TEM techniques, while structural analysis has carried out using FTIR, XPS, EDS and UV-Visible spectroscopy. The strong tendency of dispersivity of this QD in water has revealed by its zeta potential value of -32.4 mV. Optical properties of the as-prepared QDs have optimized at different excitation wavelengths. The photoluminescence stability of the dispersion is tested in various pH solutions and under continuous UV irradiation (365 nm). After that, sensing property is observed in quenching of photoluminescence feature of as-prepared QDs by direct addition of various concentrations of H2Q. We obtained lower detection limit (LOD) of 50 nM (S/N = 3) in linear range from 12 to 57.5 μM. The reduction in photoluminescence of QDs may be attributed to electron transfer from QDs to oxidized H2Q via -S- and -COO- groups present at its surface. Further, as-prepared QDs matrix exhibited high selectivity for hydroquinone over a range of potential interfering agents. Thus, the present work shows cost-effective facile synthesis of highly stable O- and S-doped carbon nitride (CxNy) quantum dots as promising photoluminescent sensor for pollutant hydroquinone without help of any enzyme or polymer assisted system.
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Affiliation(s)
- Aniruddha Jaiswal
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Ashish Kumar
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Rajiv Prakash
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India.
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25
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Zhang H, Liu S. Mixing concentrated sulfuric acid and diethylenetriamine at room temperature: A rapid and facile approach to synthesize fluorescent carbon polymer hollow spheres as peroxidase mimics. J Colloid Interface Sci 2021; 582:405-411. [PMID: 32866807 DOI: 10.1016/j.jcis.2020.08.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/12/2020] [Accepted: 08/12/2020] [Indexed: 11/30/2022]
Abstract
Fluorescent carbon polymer nanomaterials driven by their important various applications are promising, however, their scalable usages are still hindered by the lack of facile and effective synthesis approaches. Herein, a rapid and facile approach is demonstrated for the preparation of fluorescent carbon polymer hollow spheres (CPHSs), which were synthesized by directly mixing concentrated sulfuric acid (H2SO4) and diethylenetriamine (DETA) at room temperature. Notably, both the solid powders and aqueous dispersion of CPHSs possess the fluorescence properties, similar with the reported carbon polymer dots. The formation of CPHSs could be attributed to the polymerization of DETA in the presence of H2SO4. The present strategy is universal and fluorescent nanomaterials could also be obtained by using hexamethylenetetramine or polyethylenepolayamine as precursors with the aid of concentrated H2SO4. Most importantly, the CPHSs possess peroxidase-like activity and can catalyze oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) to its one-electron oxidation product, providing a new method for colorimetric detection of H2O2.
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Affiliation(s)
- Haiyan Zhang
- School of Materials Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Sen Liu
- College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China.
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26
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Liu Z, Mo Z, Liu N, Guo R, Niu X, Zhao P, Yang X. One-pot synthesis of highly fluorescent boron and nitrogen co-doped graphene quantum dots for the highly sensitive and selective detection of mercury ions in aqueous media. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112255] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Xue B. Synthesis of graphitic carbon nitride—Nanostructured photocatalyst. NANO-MATERIALS AS PHOTOCATALYSTS FOR DEGRADATION OF ENVIRONMENTAL POLLUTANTS 2020:279-304. [DOI: 10.1016/b978-0-12-818598-8.00014-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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28
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Shirke YM, Abou-Elanwar AM, Choi WK, Lee H, Hong SU, Lee HK, Jeon JD. Influence of nitrogen/phosphorus-doped carbon dots on polyamide thin film membranes for water vapor/N 2 mixture gas separation. RSC Adv 2019; 9:32121-32129. [PMID: 35530796 PMCID: PMC9072930 DOI: 10.1039/c9ra06300e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 09/18/2019] [Indexed: 11/21/2022] Open
Abstract
Nanoparticles have been attracting attention because they can significantly improve the performance of membranes when added in small amounts. In this study, the effect of polyamide membranes incorporating hydrophilic nitrogen/phosphorus-doped carbon dots (NP-CDs) to enhance water vapor/N2 separation has been investigated. NP-CD nanoparticles with many hydrophilic functional groups are synthesized from chitosan by a one-pot green method and introduced to the surface of the polysulfone (PSf) substrates by interfacial polymerization reaction. The mean particle diameter of NP-CDs, estimated from transmission electron microscopy images, is 2.6 nm. By adding NP-CDs (0–1.5 wt%) to the polyamide layer, the contact angles of the membranes dramatically decreased from 65° (PSf) to <9° (thin film nanocomposite (TFN)), which means that the TFN membranes become significantly hydrophilic. From the water vapor separation results, the addition of NP-CDs in the polyamide layer improves the water vapor permeance from 1511 (thin film composite (TFC) without nanoparticles) to 2448 GPU (TFN with 1.0 wt% NP-CD loading, CD-TFN(1.0)) and the water vapor/N2 selectivity from 73 (TFC) to 854 (CD-TFN(1.0)). To our knowledge, this is the first study of highly functionalized NP-CD-incorporated polyamide membranes to enhance water vapor separation. Nanoparticles have been attracting attention because they can significantly improve the performance of membranes when added in small amounts.![]()
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Affiliation(s)
- Yogita M Shirke
- Greenhouse Gas Research Laboratory, Korea Institute of Energy Research (KIER) 152 Gajeong-ro, Yuseong-gu Daejeon 34129 Republic of Korea .,Department of Advanced Energy and Technology Korea, University of Science and Technology (UST) 217 Gajeong-ro, Yuseong-gu Daejeon 34113 Republic of Korea
| | - Ali M Abou-Elanwar
- Greenhouse Gas Research Laboratory, Korea Institute of Energy Research (KIER) 152 Gajeong-ro, Yuseong-gu Daejeon 34129 Republic of Korea .,Department of Advanced Energy and Technology Korea, University of Science and Technology (UST) 217 Gajeong-ro, Yuseong-gu Daejeon 34113 Republic of Korea.,Chemical Engineering Pilot Plant Department, Engineering Research Division, National Research Centre Cairo 12622 Egypt
| | - Won-Kil Choi
- Greenhouse Gas Research Laboratory, Korea Institute of Energy Research (KIER) 152 Gajeong-ro, Yuseong-gu Daejeon 34129 Republic of Korea
| | - Hyojin Lee
- Greenhouse Gas Research Laboratory, Korea Institute of Energy Research (KIER) 152 Gajeong-ro, Yuseong-gu Daejeon 34129 Republic of Korea
| | - Seong Uk Hong
- Department of Chemical and Biological Engineering, Hanbat National University 125 Dongseodero, Yuseong-gu Daejeon 34158 Republic of Korea
| | - Hyung Keun Lee
- Greenhouse Gas Research Laboratory, Korea Institute of Energy Research (KIER) 152 Gajeong-ro, Yuseong-gu Daejeon 34129 Republic of Korea
| | - Jae-Deok Jeon
- Greenhouse Gas Research Laboratory, Korea Institute of Energy Research (KIER) 152 Gajeong-ro, Yuseong-gu Daejeon 34129 Republic of Korea
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29
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Xie Y, Cheng D, Liu X, Han A. Green Hydrothermal Synthesis of N-doped Carbon Dots from Biomass Highland Barley for the Detection of Hg 2. SENSORS (BASEL, SWITZERLAND) 2019; 19:E3169. [PMID: 31323887 PMCID: PMC6679557 DOI: 10.3390/s19143169] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 07/04/2019] [Accepted: 07/12/2019] [Indexed: 11/16/2022]
Abstract
Totally water-soluble N-doped Carbon dots (N-CDs) were synthesized by a green hydrothermal method from biomass using Highland barley as a carbon source and ethanediamine as nitrogen source. TEM and XRD showed the graphitic amorphous structure and narrow diameter distribution of these N-CDs. N-doping to the crystal lattice and carrying many hydrophilic groups on the surface of N-CDs were verified by XPS and FT-IR. The as-synthesized N-CDs emitted strong blue fluorescence at 480 nm and owned a relatively high quantum yield of 14.4%. The product also could sensitively and selectively detect Hg2+ ions in the range of 10-160 μM and the limit of detection was equal to 0.48 μM.
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Affiliation(s)
- Yadian Xie
- Chemical Engineering College, Qinghai University, Xining 810016, China
| | - Dandan Cheng
- School of Life Science, Wuchang University of Technology, Wuhan 430223, China
| | - Xingliang Liu
- Chemical Engineering College, Qinghai University, Xining 810016, China.
| | - Aixia Han
- Chemical Engineering College, Qinghai University, Xining 810016, China.
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30
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Xian J, Weng Y, Guo H, Li Y, Yao B, Weng W. One-pot fabrication of Fe-doped carbon nitride nanoparticles as peroxidase mimetics for H 2O 2 and glucose detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 215:218-224. [PMID: 30826580 DOI: 10.1016/j.saa.2019.02.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 02/03/2019] [Accepted: 02/16/2019] [Indexed: 05/25/2023]
Abstract
Iron-doped carbon nitride nanoparticles (Fe-CNNPs) were prepared from citric acid, urea and ferric chloride through a convenient one-pot solvothermal method. Oleic acid was used as the reaction medium. The morphology and chemical composition of the obtained Fe-CNNPs were characterized by multiple methods including transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FT-IR). It is interesting to find that the Fe-CNNPs showed higher catalytic activity than horseradish peroxidase (HRP), and tetramethylbenzidine (TMB) can be catalytically oxidized in the presence of H2O2 to produce a color change in aqueous solution. As H2O2 can be generated in the oxidation process of glucose catalyzed by glucose oxidase (GOD), a novel sensitive method for the detection of glucose with a limit of detection (LOD) of 0.29 μM has been developed combined with the catalytic properties of GOD and Fe-CNNPs. The Fe-CNNPs with peroxidase mimetics activity may have potential applications in biotechnology field.
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Affiliation(s)
- Jiaqi Xian
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Yuhui Weng
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Hantao Guo
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Yan Li
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Bixia Yao
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China; Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Zhangzhou 363000, China; Fujian Provincial Key Laboratory of Pollution Monitoring and Control, Zhangzhou 363000, China
| | - Wen Weng
- College of Chemistry and Environment, Minnan Normal University, Zhangzhou 363000, China; Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Zhangzhou 363000, China; Fujian Provincial Key Laboratory of Pollution Monitoring and Control, Zhangzhou 363000, China.
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31
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Xu J, Shalom M. Conjugated Carbon Nitride as an Emerging Luminescent Material: Quantum Dots, Thin Films and Their Applications in Imaging, Sensing, Optoelectronic Devices and Photoelectrochemistry. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201800256] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jingsan Xu
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology Brisbane, QLD 4001 Australia
| | - Menny Shalom
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
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32
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Liu H, Wang X, Wang H, Nie R. Synthesis and biomedical applications of graphitic carbon nitride quantum dots. J Mater Chem B 2019; 7:5432-5448. [DOI: 10.1039/c9tb01410a] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review summarizes the synthetic methods and addresses current applications and future perspectives of graphitic carbon nitride quantum dots in the biomedical field.
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Affiliation(s)
- Hongji Liu
- The Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions
- High Magnetic Field Laboratory
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Xingyu Wang
- The Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions
- High Magnetic Field Laboratory
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Hui Wang
- The Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions
- High Magnetic Field Laboratory
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Rongrong Nie
- Nanjing Stomatological Hospital
- Medical School of Nanjing University
- Nanjing
- P. R. China
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33
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Liyanage PY, Graham RM, Pandey RR, Chusuei CC, Mintz KJ, Zhou Y, Harper JK, Wu W, Wikramanayake AH, Vanni S, Leblanc RM. Carbon Nitride Dots: A Selective Bioimaging Nanomaterial. Bioconjug Chem 2018; 30:111-123. [PMID: 30525487 DOI: 10.1021/acs.bioconjchem.8b00784] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In contrast to the recent immense attention in carbon nitride quantum dots (CNQDs) as a heteroatom-doped carbon quantum dot (CQD), their biomedical applications have not been thoroughly investigated. Targeted cancer therapy is a prominently researched area in the biomedical field. Here, the ability of CNQDs as a selective bioimaging nanomaterial was investigated to assist targeted cancer therapy. CNQDs were first synthesized using four different precursor sets involving urea derivatives, and the characteristics were compared to select the best candidate material for bioapplications. Characterization techniques such as UV-vis, luminescence, X-ray photoelectron spectroscopy, nuclear magnetic resonance spectroscopy, and transmission electron microscopy were used. These CNQDs were analyzed in in vitro studies of bioimaging and labeling using pediatric glioma cells (SJGBM2) for possible selective biolabeling and nanodistribution inside the cell membrane. The in vitro cellular studies were conducted under long-wavelength emission without the interference of blue autofluorescence. Thus, excitation-dependent emission of CNQDs was proved to be advantageous. Importantly, CNQDs selectively entered SJGBM2 tumor cells, while it did not disperse into normal human embryonic kidney cells (HEK293). The distribution studies in the cell cytoplasm indicated that CNQDs dispersed into lysosomes within approximately 6 h after the incubation. The CNQDs exhibited great potential as a possible nanomaterial in selective bioimaging and drug delivery for targeted cancer therapy.
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Affiliation(s)
- Piumi Y Liyanage
- Department of Chemistry , University of Miami , 1301 Memorial Drive , Coral Gables , Florida 33146 , United States
| | - Regina M Graham
- Department of Neurological surgery, Miller School of Medicine , University of Miami , Miami , Florida 33136 , United States
| | - Raja R Pandey
- Department of Chemistry , Middle Tennessee State University , Murfreesboro , Tennessee 37132 , United States
| | - Charles C Chusuei
- Department of Chemistry , Middle Tennessee State University , Murfreesboro , Tennessee 37132 , United States
| | - Keenan J Mintz
- Department of Chemistry , University of Miami , 1301 Memorial Drive , Coral Gables , Florida 33146 , United States
| | - Yiqun Zhou
- Department of Chemistry , University of Miami , 1301 Memorial Drive , Coral Gables , Florida 33146 , United States
| | - James K Harper
- Department of Chemistry , University of Central Florida , 4111 Libra Drive , Orlando , Florida 32816 , United States
| | - Wei Wu
- Department of Biology , University of Miami , Coral Gables , Florida 33146 , United States
| | - Athula H Wikramanayake
- Department of Biology , University of Miami , Coral Gables , Florida 33146 , United States
| | - Steven Vanni
- Department of Neurological surgery, Miller School of Medicine , University of Miami , Miami , Florida 33136 , United States
| | - Roger M Leblanc
- Department of Chemistry , University of Miami , 1301 Memorial Drive , Coral Gables , Florida 33146 , United States
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34
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Jiang K, Wang Y, Cai C, Lin H. Conversion of Carbon Dots from Fluorescence to Ultralong Room-Temperature Phosphorescence by Heating for Security Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1800783. [PMID: 29733475 DOI: 10.1002/adma.201800783] [Citation(s) in RCA: 241] [Impact Index Per Article: 40.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 03/02/2018] [Indexed: 05/19/2023]
Abstract
Stimuli-responsive optical materials have received tremendous interest in the last several decades due to their numerous promising applications. Here, fluorescence emissive polymer carbon dots (F-CDs), prepared with a simple heating treatment from ethylenediamine and phosphoric acid, are found to produce unexpected ultralong room-temperature phosphorescence (URTP), which lasts for about 10 s with a lifetime of 1.39 s. This is the first example to achieve the conversion of a fluorescence material to URTP by means of an external heating stimulus. Further investigations reveal that the doping of N and P elements and self-immobilization of the excited triplet species are likely mainly responsible for the observed URTP after the heating treatment, due to the facilitation of the intersystem crossing and formation of more compact cores for effective intraparticle hydrogen bonds, respectively. Importantly, this study also demonstrates the potential for aqueous dispersion of the F-CDs as an advanced security ink for information encryption and anticounterfeiting; this is a feature that has not been reported before. This study is believed to open possibilities to extend stimuli-responsive optical materials to rarely exploited phosphorescence-relevant systems and applications, and also to provide a novel strategy to easily prepare URTP materials.
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Affiliation(s)
- Kai Jiang
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy of Sciences, Ningbo, 315201, China
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Department of Applied Physics, Chongqing University, Chongqing, 400044, China
| | - Yuhui Wang
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy of Sciences, Ningbo, 315201, China
| | - Congzhong Cai
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Department of Applied Physics, Chongqing University, Chongqing, 400044, China
| | - Hengwei Lin
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy of Sciences, Ningbo, 315201, China
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35
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Bao R, Chen Z, Zhao Z, Sun X, Zhang J, Hou L, Yuan C. Green and Facile Synthesis of Nitrogen and Phosphorus Co-Doped Carbon Quantum Dots towards Fluorescent Ink and Sensing Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E386. [PMID: 29857502 PMCID: PMC6027371 DOI: 10.3390/nano8060386] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 05/23/2018] [Accepted: 05/28/2018] [Indexed: 01/17/2023]
Abstract
Fluorescent carbon quantum dots (CQDs) have held great promise in analytical and environmental fields thanks to their congenitally fascinating virtues. However, low quantum yield (QY) and modest fluorescent stability still restrict their practical applications. In this investigation, a green hydrothermal strategy has been devised to produce water-soluble nitrogen/phosphorus (N/P) co-doped CQDs from edible Eleocharis dulcis with multi-heteroatoms. Without any additives and further surface modifications, the resultant CQDs exhibited tunable photoluminescence just by changing hydrothermal temperatures. Appealingly, they showed remarkable excitation-dependent emission, high QY, superior fluorescence stability, and long lifetime. By extending the CQDs solutions as a "fluorescent ink", we found their potential application in the anti-counterfeit field. When further evaluated as a fluorescence sensor, the N/P co-doped CQDs demonstrated a wide-range determination capability in inorganic cations, and especially the remarkable sensitivity and selectivity for elemental Fe3+. More significantly, the green methodology we developed here can be readily generalized for scalable production of high-quality CQDs with tunable emission for versatile applications.
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Affiliation(s)
- Ruiqi Bao
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, China.
| | - Zhiyi Chen
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, China.
| | - Zhiwei Zhao
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, China.
| | - Xuan Sun
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Jinyang Zhang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Linrui Hou
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Changzhou Yuan
- School of Material Science and Engineering, University of Jinan, Jinan 250022, China.
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36
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Jiang K, Wang Y, Gao X, Cai C, Lin H. Facile, Quick, and Gram‐Scale Synthesis of Ultralong‐Lifetime Room‐Temperature‐Phosphorescent Carbon Dots by Microwave Irradiation. Angew Chem Int Ed Engl 2018; 57:6216-6220. [DOI: 10.1002/anie.201802441] [Citation(s) in RCA: 305] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Kai Jiang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control Department of Applied Physics Chongqing University Chongqing 400044 China
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province Ningbo Institute of Materials Technology & Engineering (NIMTE) Chinese Academy of Sciences Ningbo 315201 China
| | - Yuhui Wang
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province Ningbo Institute of Materials Technology & Engineering (NIMTE) Chinese Academy of Sciences Ningbo 315201 China
| | - Xiaolu Gao
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province Ningbo Institute of Materials Technology & Engineering (NIMTE) Chinese Academy of Sciences Ningbo 315201 China
| | - Congzhong Cai
- State Key Laboratory of Coal Mine Disaster Dynamics and Control Department of Applied Physics Chongqing University Chongqing 400044 China
| | - Hengwei Lin
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province Ningbo Institute of Materials Technology & Engineering (NIMTE) Chinese Academy of Sciences Ningbo 315201 China
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37
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Jiang K, Wang Y, Gao X, Cai C, Lin H. Facile, Quick, and Gram‐Scale Synthesis of Ultralong‐Lifetime Room‐Temperature‐Phosphorescent Carbon Dots by Microwave Irradiation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802441] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kai Jiang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control Department of Applied Physics Chongqing University Chongqing 400044 China
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province Ningbo Institute of Materials Technology & Engineering (NIMTE) Chinese Academy of Sciences Ningbo 315201 China
| | - Yuhui Wang
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province Ningbo Institute of Materials Technology & Engineering (NIMTE) Chinese Academy of Sciences Ningbo 315201 China
| | - Xiaolu Gao
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province Ningbo Institute of Materials Technology & Engineering (NIMTE) Chinese Academy of Sciences Ningbo 315201 China
| | - Congzhong Cai
- State Key Laboratory of Coal Mine Disaster Dynamics and Control Department of Applied Physics Chongqing University Chongqing 400044 China
| | - Hengwei Lin
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province Ningbo Institute of Materials Technology & Engineering (NIMTE) Chinese Academy of Sciences Ningbo 315201 China
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38
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Wang H, Lu Q, Li M, Li H, Liu Y, Li H, Zhang Y, Yao S. Electrochemically prepared oxygen and sulfur co-doped graphitic carbon nitride quantum dots for fluorescence determination of copper and silver ions and biothiols. Anal Chim Acta 2018; 1027:121-129. [PMID: 29866261 DOI: 10.1016/j.aca.2018.03.063] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/23/2018] [Accepted: 03/27/2018] [Indexed: 01/20/2023]
Abstract
Although great advances have been achieved in synthesis of fluorescent graphitic carbon nitride quantum dots (g-C3N4-dots), it is still challenging to develop g-C3N4-dots with high fluorescence quantum yield (FLQY) and multiple sensing functionalities. Herein, the oxygen and sulfur co-doped graphitic carbon nitride quantum dots (OS-g-C3N4-dots) with high FLQY of 33.9% were firstly synthesized by a simple electrochemical "tailoring" process. It was found that OS-g-C3N4-dots could specifically bind copper ions (Cu2+) and silver ions (Ag+), accompanied with a dramatic "turn-off" fluorescence response. With the help of different masking agents, OS-g-C3N4-dots are able to selectively detect Cu2+ and Ag+. Furthermore, the generated OS-g-C3N4-dots/Ag+ displayed a "turn-on" fluorescent response specific to biothiols (HCy, Cys and GSH). Therefore, the multiple functional sensing platforms based on "ON-OFF-ON" fluorescence response of OS-g-C3N4-dots for the detection of Cu2+, Ag+ and biothiols were constructed. Under the optimal conditions, the detection limits of Cu2+, Ag+, HCy, Cys and GSH were as low as 7.0 × 10-10 M, 2.0 × 10-9 M, 1.0 × 10-8 M, 1.0 × 10-8 M and 8.4 × 10-9 M, respectively. Moreover, the prepared platforms could be successfully applied to the determination of Cu2+, Ag+ and biothiols in practical samples and exhibited excellent sensitivity and selectivity.
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Affiliation(s)
- Haiyan Wang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Qiujun Lu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Mingxia Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Huan Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Yalan Liu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Haitao Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China.
| | - Shouzhuo Yao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
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39
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Methotrexate-conjugated to polymer quantum dot for cytotoxicity effect improved against MCF-7 and Hela cells. Med Chem Res 2018. [DOI: 10.1007/s00044-018-2173-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Enhanced photoluminescence properties of a carbon dot system through surface interaction with polymeric nanoparticles. J Colloid Interface Sci 2018; 518:11-20. [PMID: 29438859 DOI: 10.1016/j.jcis.2018.01.102] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 01/28/2018] [Accepted: 01/29/2018] [Indexed: 11/21/2022]
Abstract
HYPOTHESIS Carbon dot systems are highly surface sensitive fluorescent nanomaterials. In the presence of specific molecules or ions, the fluorescence properties can be strongly influenced. Often their fluorescent properties are activated or strongly enhanced through passivation agents such as polymer coatings. While several passivating polymers have been directly attached to the carbon dot systems, the interaction of carbon dot systems with the polymer surface of colloids has not been investigated as a way to activate or enhance the photoluminescent properties. Here, we show for the first time that the interaction of carbon dot systems with polymer colloids can strongly enhance the fluorescent properties of the carbon dot systems. EXPERIMENTS To introduce carbon dot - polymer nanoparticle interactions, carbon dots are either generated directly in a microwave assisted synthesis in the presence of negatively charged polystyrene nanoparticles (in situ) or synthesized in the microwave separately and mixed afterwards with polymer nanoparticles (mixing). For the carbon dot system synthesis, chitosan, 1,2-ethylenediamine, and acetic acid are used as precursors. The produced carbon dot - polymer nanoparticle system are characterized by scanning electron microscopy, transmission electron microscopy, and flow cytometry measurements, and their interaction is assessed by fluorescence spectroscopy and fluorescence lifetime measurements. FINDINGS We show that depending on the synthesis route (in situ or mixing), the carbon dot systems are either covalently attached (in situ) or electrostatically bound (mixing) to the surface of the nanoparticles. Regardless of the preparation methods of the investigated carbon dot - polymer nanoparticle system and the interaction (chemical or physical) with the surface, the fluorescence intensity is strongly enhanced and the fluorescence lifetime prolonged. These findings indicate a stabilization of the radiative trap states of carbon dot systems through interaction with the surface of the particles.
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41
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Han B, Peng T, Yu M, Chi C, Li Y, Hu X, He G. One-pot synthesis of highly fluorescent Fe2+-doped carbon dots for a dual-emissive nanohybrid for the detection of zinc ions and histidine. NEW J CHEM 2018. [DOI: 10.1039/c8nj01858h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Fe2+ was confirmed to be the only definitive one of the common metal ions to synthesize the highly fluorescent carbon dots with proline as the carbon resource at 80 °C for visual fluorescence sensing Zn2+ and histidine, respectively.
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Affiliation(s)
- Bingyan Han
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin
- China
| | - Tingting Peng
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin
- China
| | - Mingbo Yu
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin
- China
| | - Chen Chi
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin
- China
| | - Ying Li
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin
- China
| | - Xixi Hu
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin
- China
| | - Gaohong He
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin
- China
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42
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Chen Z, Zhao Z, Wang Z, Zhang Y, Sun X, Hou L, Yuan C. Foxtail millet-derived highly fluorescent multi-heteroatom doped carbon quantum dots towards fluorescent inks and smart nanosensors for selective ion detection. NEW J CHEM 2018. [DOI: 10.1039/c8nj01072b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Foxtail millet-derived highly fluorescent nitrogen/sulfur/phosphrous (N/S/P) co-doped CQDs were efficiently fabricated via a green strategy, and were found to hold potential towards fluorescent inks and smart detection.
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Affiliation(s)
- Zhiyi Chen
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Zhiwei Zhao
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Zhengluo Wang
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Yanru Zhang
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Xuan Sun
- School of Material Science and Engineering
- University of Jinan
- Jinan
- P. R. China
| | - Linrui Hou
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
- School of Material Science and Engineering
| | - Changzhou Yuan
- School of Materials Science and Engineering
- Anhui University of Technology
- Ma’anshan
- P. R. China
- School of Material Science and Engineering
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43
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Song P, Liu Q, Zhang Y, Liu W, Meng M, Yin Y, Xi R. The chemical redox modulated switch-on fluorescence of carbon dots for probing alkaline phosphatase and its application in an immunoassay. RSC Adv 2018. [DOI: 10.1039/c7ra11784a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The chemical redox modulated switch-on fluorescence of carbon dots for detecting ALP and human IgG.
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Affiliation(s)
- Pei Song
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Qian Liu
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Ying Zhang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Wei Liu
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Meng Meng
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Yongmei Yin
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
| | - Rimo Xi
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300353
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44
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Miller TS, Suter TM, Telford AM, Picco L, Payton OD, Russell-Pavier F, Cullen PL, Sella A, Shaffer MSP, Nelson J, Tileli V, McMillan PF, Howard CA. Single Crystal, Luminescent Carbon Nitride Nanosheets Formed by Spontaneous Dissolution. NANO LETTERS 2017; 17:5891-5896. [PMID: 28678518 DOI: 10.1021/acs.nanolett.7b01353] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A primary method for the production of 2D nanosheets is liquid-phase delamination from their 3D layered bulk analogues. Most strategies currently achieve this objective by significant mechanical energy input or chemical modification but these processes are detrimental to the structure and properties of the resulting 2D nanomaterials. Bulk poly(triazine imide) (PTI)-based carbon nitrides are layered materials with a high degree of crystalline order. Here, we demonstrate that these semiconductors are spontaneously soluble in select polar aprotic solvents, that is, without any chemical or physical intervention. In contrast to more aggressive exfoliation strategies, this thermodynamically driven dissolution process perfectly maintains the crystallographic form of the starting material, yielding solutions of defect-free, hexagonal 2D nanosheets with a well-defined size distribution. This pristine nanosheet structure results in narrow, excitation-wavelength-independent photoluminescence emission spectra. Furthermore, by controlling the aggregation state of the nanosheets, we demonstrate that the emission wavelengths can be tuned from narrow UV to broad-band white. This has potential applicability to a range of optoelectronic devices.
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Affiliation(s)
- Thomas S Miller
- Department of Chemistry, Christopher Ingold Laboratory, University College London , 20 Gordon Street, London WC1H OAJ, United Kingdom
| | - Theo M Suter
- Department of Chemistry, Christopher Ingold Laboratory, University College London , 20 Gordon Street, London WC1H OAJ, United Kingdom
| | - Andrew M Telford
- Department of Physics and Centre for Plastic Electronics, Imperial College London , London SW7 2BW, United Kingdom
| | - Loren Picco
- Interface Analysis Centre, H. H. Wills Physics Laboratory, University of Bristol , Tyndall Avenue, Bristol BS8 1TL, United Kingdom
| | - Oliver D Payton
- Interface Analysis Centre, H. H. Wills Physics Laboratory, University of Bristol , Tyndall Avenue, Bristol BS8 1TL, United Kingdom
| | - Freddie Russell-Pavier
- Interface Analysis Centre, H. H. Wills Physics Laboratory, University of Bristol , Tyndall Avenue, Bristol BS8 1TL, United Kingdom
| | - Patrick L Cullen
- Department of Physics & Astronomy, University College London , London WC1E 6BT, United Kingdom
| | - Andrea Sella
- Department of Chemistry, Christopher Ingold Laboratory, University College London , 20 Gordon Street, London WC1H OAJ, United Kingdom
| | - Milo S P Shaffer
- Department of Chemistry, Imperial College London , Exhibition Road, London SW7 2AZ, United Kingdom
| | - Jenny Nelson
- Department of Physics and Centre for Plastic Electronics, Imperial College London , London SW7 2BW, United Kingdom
| | - Vasiliki Tileli
- # Institute of Materials, École Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | - Paul F McMillan
- Department of Chemistry, Christopher Ingold Laboratory, University College London , 20 Gordon Street, London WC1H OAJ, United Kingdom
| | - Christopher A Howard
- Department of Physics & Astronomy, University College London , London WC1E 6BT, United Kingdom
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45
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Chen Y, Yang Q, Xu P, Sun L, Sun D, Zhuo K. One-Step Synthesis of Acidophilic Highly-Photoluminescent Carbon Dots Modified by Ionic Liquid from Polyethylene Glycol. ACS OMEGA 2017; 2:5251-5259. [PMID: 31457796 PMCID: PMC6641901 DOI: 10.1021/acsomega.7b01014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 08/21/2017] [Indexed: 05/30/2023]
Abstract
Acidophilic highly-photoluminescent ionic liquid (IL)-modified carbon dots (CDs) were fabricated directly from polyethylene glycol-2000 (PEG2000N) by a simple one-step hydrothermal method in a system containing an IL (1-butyl-3-methylimidazolium bromide [C4mim]Br) and hydrochloric acid (HCl). In this process, PEG2000N works as the carbon source, [C4mim]Br as the modifier, and HCl as the accelerator. CDs with low photoluminescence (PL) intensity and quantum yields (QYs) were generated in the system without H+, but CDs with high PL intensity and QYs could be prepared after H+ was introduced. Moreover, with the increase of H+ concentration, the QYs of the prepared CDs increase subsequently, and the highest QY reaches up to 43%. The formation mechanism was explored, and the results showed that H+ changes the surface groups of the CDs generated without H+ into those that exist on the CDs generated with H+, which further improves the PL performance of the CDs. Different from most CDs reported in the literature, the as-prepared CDs can still exhibit high PL intensity even under strong acidic condition.
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Affiliation(s)
- Yujuan Chen
- Collaborative Innovation Center of
Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory
of Green Chemical Media and Reactions, Ministry of Education, School
of Chemistry and Chemical Engineering, Henan
Normal University, Xinxiang, Henan 453007, P. R. China
| | - Qian Yang
- Collaborative Innovation Center of
Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory
of Green Chemical Media and Reactions, Ministry of Education, School
of Chemistry and Chemical Engineering, Henan
Normal University, Xinxiang, Henan 453007, P. R. China
| | - Panpan Xu
- Collaborative Innovation Center of
Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory
of Green Chemical Media and Reactions, Ministry of Education, School
of Chemistry and Chemical Engineering, Henan
Normal University, Xinxiang, Henan 453007, P. R. China
| | - Li Sun
- Collaborative Innovation Center of
Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory
of Green Chemical Media and Reactions, Ministry of Education, School
of Chemistry and Chemical Engineering, Henan
Normal University, Xinxiang, Henan 453007, P. R. China
| | - Dong Sun
- Collaborative Innovation Center of
Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory
of Green Chemical Media and Reactions, Ministry of Education, School
of Chemistry and Chemical Engineering, Henan
Normal University, Xinxiang, Henan 453007, P. R. China
| | - Kelei Zhuo
- Collaborative Innovation Center of
Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory
of Green Chemical Media and Reactions, Ministry of Education, School
of Chemistry and Chemical Engineering, Henan
Normal University, Xinxiang, Henan 453007, P. R. China
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46
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Devi P, Kaur G, Thakur A, Kaur N, Grewal A, Kumar P. Waste derivitized blue luminescent carbon quantum dots for selenite sensing in water. Talanta 2017; 170:49-55. [PMID: 28501201 DOI: 10.1016/j.talanta.2017.03.069] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 03/21/2017] [Accepted: 03/22/2017] [Indexed: 10/19/2022]
Abstract
Herein, we report an environmental friendly, facile, and completely green synthetic method for producing carbon quantum dots (CQDs) from whey, a major dairy waste. The as-prepared monodispersed diameter CQDs exhibit blue luminescence with noteworthy quantum yield (~11.4%) and excitation dependent emission behaviour. Nuclear magnetic resonance (NMR) analysis reveals the presence of aromatized carbon peaks, leading to polymerized CQDs diameter architecture during whey pyrolysis. The X-ray and selected area electron diffraction patterns confirm their amorphous nature. Further, we demonstrate, these CQDs as an effective sensor probe for selective selenite monitoring in water upon functionalization with appropriate ligand. The functionalized GCQDs probe is shown to detect selenite with high sensitivity in 10-1000ppb detection range. Further it is selective for selenite over other relevant ions (such as Cu2+, As3+, As5+, Pb2+, Ni2+, Se6+, Cl-, Br-, NO3-, NO2- and F-) and displays a sub-ppb detection limit at 1.1% relative standard deviation.
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Affiliation(s)
- Pooja Devi
- Academy of Scientific and Innovative Research (AcSIR), Council of Scientific and Industrial Research, New Delhi, India; Central Scientific Instruments Organisation, Chandigarh 160030, India.
| | - Gurvinder Kaur
- Central Scientific Instruments Organisation, Chandigarh 160030, India
| | - Anupma Thakur
- Central Scientific Instruments Organisation, Chandigarh 160030, India
| | - Navneet Kaur
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Anita Grewal
- University Institute of Engineering & Technology, Kurukshetra University, Haryana, India
| | - Praveen Kumar
- Central Scientific Instruments Organisation, Chandigarh 160030, India
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47
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Graphitic carbon nitride quantum dots in situ coupling to Bi 2 MoO 6 nanohybrids with enhanced charge transfer performance and photoelectrochemical detection of copper ion. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.01.042] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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48
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Dong Y, Chen Y, You X, Lin W, Lu CH, Yang HH, Chi Y. High photoluminescent carbon based dots with tunable emission color from orange to green. NANOSCALE 2017; 9:1028-1032. [PMID: 28054701 DOI: 10.1039/c6nr08444c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
A one-pot hydrothermal method was proposed for the synthesis of carbon based dots (CDs) with high quantum yield and controllable long-wavelength photoluminescence (PL). The PL mechanisms of the CDs were discussed, and a common model has been proposed. Furthermore, the obtained CDs showed excellent biocompatibility and high PLQYs (more than 20%), and presented great potential bio-applications.
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Affiliation(s)
- Yongqiang Dong
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, and Department of Chemistry, Fuzhou University, Fujian 350108, China.
| | - Yingmei Chen
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, and Department of Chemistry, Fuzhou University, Fujian 350108, China.
| | - Xu You
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, and Department of Chemistry, Fuzhou University, Fujian 350108, China.
| | - Wei Lin
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, and Department of Chemistry, Fuzhou University, Fujian 350108, China.
| | - Chun-Hua Lu
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, and Department of Chemistry, Fuzhou University, Fujian 350108, China.
| | - Huang-Hao Yang
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, and Department of Chemistry, Fuzhou University, Fujian 350108, China.
| | - Yuwu Chi
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, and Department of Chemistry, Fuzhou University, Fujian 350108, China.
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49
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Bayda S, Hadla M, Palazzolo S, Kumar V, Caligiuri I, Ambrosi E, Pontoglio E, Agostini M, Tuccinardi T, Benedetti A, Riello P, Canzonieri V, Corona G, Toffoli G, Rizzolio F. Bottom-up synthesis of carbon nanoparticles with higher doxorubicin efficacy. J Control Release 2017; 248:144-152. [PMID: 28093297 DOI: 10.1016/j.jconrel.2017.01.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nanomedicine requires intelligent and non-toxic nanomaterials for real clinical applications. Carbon materials possess interesting properties but with some limitations due to toxic effects. Interest in carbon nanoparticles (CNPs) is increasing because they are considered green materials with tunable optical properties, overcoming the problem of toxicity associated with quantum dots or nanocrystals, and can be utilized as smart drug delivery systems. Using black tea as a raw material, we synthesized CNPs with a narrow size distribution, tunable optical properties covering visible to deep red absorption, non-toxicity and easy synthesis for large-scale production. We utilized these CNPs to label subcellular structures such as exosomes. More importantly, these new CNPs can escape lysosomal sequestration and rapidly distribute themselves in the cytoplasm to release doxorubicin (doxo) with better efficacy than the free drug. The release of doxo from CNPs was optimal at low pH, similar to the tumour microenvironment. These CNPs were non-toxic in mice and reduced the tumour burden when loaded with doxo due to an improved pharmacokinetics profile. In summary, we created a new delivery system that is potentially useful for improving cancer treatments and opening a new window for tagging microvesicles utilized in liquid biopsies.
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Affiliation(s)
- Samer Bayda
- Department of Translational Research, National Cancer Institute - CRO-IRCCS, Aviano, Italy; Doctoral School in Nanotechnology, University of Trieste, Italy
| | - Mohamad Hadla
- Department of Translational Research, National Cancer Institute - CRO-IRCCS, Aviano, Italy; Doctoral School in Pharmacological Sciences, University of Padova, Italy
| | - Stefano Palazzolo
- Department of Translational Research, National Cancer Institute - CRO-IRCCS, Aviano, Italy; Doctoral School in Nanotechnology, University of Trieste, Italy
| | - Vinit Kumar
- Department of Translational Research, National Cancer Institute - CRO-IRCCS, Aviano, Italy; Amity Institute of Molecular Medicine & Stem Cell Research, Amity University, Noida, India
| | - Isabella Caligiuri
- Department of Translational Research, National Cancer Institute - CRO-IRCCS, Aviano, Italy
| | - Emmanuele Ambrosi
- Department of Molecular Sciences and Nanosystems and Electron Microscopy Center "Giovanni Stevanato", University Ca' Foscari of Venezia, Italy; European Center of Living Technology, Venezia-Mestre, Italy
| | - Enrico Pontoglio
- Department of Molecular Sciences and Nanosystems and Electron Microscopy Center "Giovanni Stevanato", University Ca' Foscari of Venezia, Italy; European Center of Living Technology, Venezia-Mestre, Italy; Doctoral School in Chemistry, University of Trieste, Italy
| | - Marco Agostini
- Department of Surgical, Oncological and Gastroenterological Sciences, Section of Surgery, University of Padova, Italy; Pediatric Research Institute, Città della Speranza, Padova, Italy
| | | | - Alvise Benedetti
- Department of Molecular Sciences and Nanosystems and Electron Microscopy Center "Giovanni Stevanato", University Ca' Foscari of Venezia, Italy; European Center of Living Technology, Venezia-Mestre, Italy
| | - Pietro Riello
- Department of Molecular Sciences and Nanosystems and Electron Microscopy Center "Giovanni Stevanato", University Ca' Foscari of Venezia, Italy; European Center of Living Technology, Venezia-Mestre, Italy
| | - Vincenzo Canzonieri
- Department of Translational Research, National Cancer Institute - CRO-IRCCS, Aviano, Italy
| | - Giuseppe Corona
- Department of Translational Research, National Cancer Institute - CRO-IRCCS, Aviano, Italy
| | - Giuseppe Toffoli
- Department of Translational Research, National Cancer Institute - CRO-IRCCS, Aviano, Italy
| | - Flavio Rizzolio
- Department of Translational Research, National Cancer Institute - CRO-IRCCS, Aviano, Italy.
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50
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Sai L, Chen J, Chang Q, Shi W, Chen Q, Huang L. Protein-derived carbon nanodots with an ethylenediamine-modulated structure as sensitive fluorescent probes for Cu2+detection. RSC Adv 2017. [DOI: 10.1039/c7ra01441d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The increasing use of fluorescent carbon nanodots (CNDs) demonstrates their advantages for sensing applications; these include superior photostability, absence of toxicity, and rapid analytical capability.
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Affiliation(s)
- Liman Sai
- Joint Lab with Wuhu Token for Graphene Electrical Materials and Application
- Department of Physics
- Shanghai Normal University
- Shanghai 200234
- China
| | - Jun Chen
- Department of Orthopedic Sport Medicine
- Huashan Hospital
- Fudan University
- Shanghai
- China
| | - Quanhong Chang
- Joint Lab with Wuhu Token for Graphene Electrical Materials and Application
- Department of Physics
- Shanghai Normal University
- Shanghai 200234
- China
| | - Wangzhou Shi
- Joint Lab with Wuhu Token for Graphene Electrical Materials and Application
- Department of Physics
- Shanghai Normal University
- Shanghai 200234
- China
| | - Qi Chen
- Joint Lab with Wuhu Token for Graphene Electrical Materials and Application
- Department of Physics
- Shanghai Normal University
- Shanghai 200234
- China
| | - Lei Huang
- Joint Lab with Wuhu Token for Graphene Electrical Materials and Application
- Department of Physics
- Shanghai Normal University
- Shanghai 200234
- China
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