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Rajoriya K, Pratibha, Abhijeet, Meena R, Kumari A. Synthesis of fluorometric carbon nano dots(CNDs) for selective sensing of biologically important Fe 3+ and Cu 2+ metal ions and evaluating their antioxidant capacity. J Fluoresc 2024:10.1007/s10895-024-03924-1. [PMID: 39287722 DOI: 10.1007/s10895-024-03924-1] [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: 06/14/2024] [Accepted: 09/04/2024] [Indexed: 09/19/2024]
Abstract
In this research, CNDs were prepared by a green and cost effective method using Cinnamomum Tamala (bay leaf) as carbon sources. TEM, UV, FTIR, ZETA Potential, PL and Fluorescence methods were used to characterize the produced CNDs and the average particle size is 3.42 nm. This research was conducted on the development of fluorescent sensors for various metal ions, including Fe3+, Cu2+, Zn2+, Ni2+, Pb2+, Cr3+, Mg2+, Na+ 1 and Cd2+. The CNDs demonstrated selective sensing of biologically important Fe+ 3 and Cu+ 2 metal ions. The CNDs antioxidant assay was tasked with DPPH• radical scavenging properties. CNDs made from Cinnamomum Tamala had the highest DPPH free radical scavenging activity at 100 mg/L (42.06%) with the IC50 of 130.68 mg/L. The outcome implies that Indian spices are among the best materials for optical metal ion detection and sensing, and they also have therapeutic benefits.
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Affiliation(s)
- Komal Rajoriya
- Department of Chemistry, University of Rajasthan, Jaipur, 302004, India
| | - Pratibha
- Department of Chemistry, University of Rajasthan, Jaipur, 302004, India
| | - Abhijeet
- Department of Chemistry, University of Rajasthan, Jaipur, 302004, India
| | - Ramhari Meena
- Department of Chemistry, University of Rajasthan, Jaipur, 302004, India
| | - Anita Kumari
- Department of Chemistry, University of Rajasthan, Jaipur, 302004, India.
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2
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Minervini G, Panniello A, Dibenedetto CN, Madonia A, Fanizza E, Curri ML, Striccoli M. Exploring Carbon Dots: Green Nanomaterials for Unconventional Lasing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403653. [PMID: 39165080 DOI: 10.1002/smll.202403653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 07/26/2024] [Indexed: 08/22/2024]
Abstract
In recent years, the progress toward lighting miniaturization is focused on luminescent nanomaterials. Among them, fluorescent carbon dots (CDs) are receiving increasing attention thanks to their astonishing optical properties complemented by their intrinsic biocompatibility and low toxicity. The CDs can be easily dispersed in water, organic solvents or incorporated in polymeric matrices, preserving their emission properties. However, the relationship between their structural and optical properties is still not fully elucidated, motivating a consistent research effort for the comprehension of their features. Nevertheless, CDs demonstrate to be efficient gain materials for lasing, thanks to their high quantum yield (QY), emission tunability in the visible and near infrared (NIR) range, short lifetimes, and high absorption cross section, even if the synthetic reproducibility, the low reaction yield and the spectral width of the emission may limit their effective exploitation. This review summarizes the latest advancements in the investigation of the characteristic properties of CDs that make laser action possible, illustrating optical geometries for lasing and random lasing, both in solution and solid state, and the few currently demonstrated breakthroughs. While the journey toward their effective application is still long, the potential of CD-based laser sources is promising in various technological fields and futuristic perspectives will be discussed.
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Affiliation(s)
- Gianluca Minervini
- Institute for Physical and Chemical Processes (IPCF), CNR, via Orabona 4, Bari, 70125, Italy
| | - Annamaria Panniello
- Institute for Physical and Chemical Processes (IPCF), CNR, via Orabona 4, Bari, 70125, Italy
| | | | - Antonino Madonia
- Department of Physics and Chemistry "E. Segré", University of Palermo, Via Archirafi 36, Palermo, 90123, Italy
| | - Elisabetta Fanizza
- Institute for Physical and Chemical Processes (IPCF), CNR, via Orabona 4, Bari, 70125, Italy
- Chemistry Department, University of Bari, via Orabona 4, Bari, 70125, Italy
- National Interuniversity Consortium of Materials Science and Technology, INSTM, Bari Research Unit, Via Orabona 4, Bari, 70125, Italy
| | - Maria Lucia Curri
- Institute for Physical and Chemical Processes (IPCF), CNR, via Orabona 4, Bari, 70125, Italy
- Chemistry Department, University of Bari, via Orabona 4, Bari, 70125, Italy
- National Interuniversity Consortium of Materials Science and Technology, INSTM, Bari Research Unit, Via Orabona 4, Bari, 70125, Italy
| | - Marinella Striccoli
- Institute for Physical and Chemical Processes (IPCF), CNR, via Orabona 4, Bari, 70125, Italy
- National Interuniversity Consortium of Materials Science and Technology, INSTM, Bari Research Unit, Via Orabona 4, Bari, 70125, Italy
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3
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Anjali Devi JS, Madanan Anju S, Lekha GM, Aparna RS, George S. Luminescent carbon dots versus quantum dots and gold nanoclusters as sensors. NANOSCALE HORIZONS 2024. [PMID: 39037443 DOI: 10.1039/d4nh00107a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
Ultra-small nanoparticles, including quantum dots, gold nanoclusters (AuNCs) and carbon dots (CDs), have emerged as a promising class of fluorescent material because of their molecular-like properties and widespread applications in sensing and imaging. However, the fluorescence properties of ultra-small gold nanoparticles (i.e., AuNCs) and CDs are more complicated and well distinguished from conventional quantum dots or organic dye molecules. At this frontier, we highlight recent developments in the fundamental understanding of the fluorescence emission mechanism of these ultra-small nanoparticles. Moreover, this review carefully analyses the underlying principles of ultra-small nanoparticle sensors. We expect that this information on ultra-small nanoparticles will fuel research aimed at achieving precise control over their fluorescence properties and the broadening of their applications.
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Affiliation(s)
- J S Anjali Devi
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Thiruvananthapuram 695581, Kerala, India.
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P. O., Kottayam 686560, Kerala, India
- Department of Chemistry, Kannur University, Swami Anandatheertha Campus, Payyanur, Edat P. O. Kannur 670327, Kerala, India
| | - S Madanan Anju
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Thiruvananthapuram 695581, Kerala, India.
| | - G M Lekha
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Thiruvananthapuram 695581, Kerala, India.
| | - R S Aparna
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Thiruvananthapuram 695581, Kerala, India.
| | - Sony George
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Thiruvananthapuram 695581, Kerala, India.
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4
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Zhang D, Liu L, Li C. Aggregation-induced-emission red carbon dots for ratiometric sensing of norfloxacin and anti-counterfeiting. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 315:124186. [PMID: 38593536 DOI: 10.1016/j.saa.2024.124186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/09/2024] [Accepted: 03/23/2024] [Indexed: 04/11/2024]
Abstract
The detection of trace antibiotic residues holds significant importance because it's related to food safety and human health. In this study, we developed a new high-yield red-emitting carbon dots (R-CDs) with aggregation-induced emission properties for ratiometric sensing of norfloxacin. R-CDs were prepared in 30 min using an economical and efficient microwave-assisted method with tartaric acid and o-phenylenediamine as precursors, achieving a high yield of 34.4 %. R-CDs showed concentration-dependent fluorescence and aggregation-induced-emission properties. A ratiometric fluorescent probe for detecting the norfloxacin was developed. In the range of 0-40 μM, the intensity ratio of two emission peaks (I445 nm/I395 nm) towards norfloxacin show good linear relationship with its concentrations and a low detection limit was obtained (36.78 nM). In addition, complex patterns were developed for anti-counterfeiting based on different emission phenomenon at different concentrations. In summary, this study designed a novel ratiometric fluorescent probe for detection of norfloxacin, which greatly shortens the detection time and improves efficiency compared with high-performance liquid chromatography and other methods. The study will promote the application of carbon dots in anti-counterfeiting and other related fields, laying the foundation for the preparation of low-cost photosensitive anti-counterfeiting materials.
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Affiliation(s)
- Daohan Zhang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Lei Liu
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; Hebei Innovation Center of Pharmaceutical and Chemical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
| | - Chunyan Li
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
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5
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Zhang Y, Sun L, Li C, Ma J, Zhang S, Wang Q, Ma H. A simple and accurate ratiometric sensor for determination of dopamine based on dual-emission carbon dots. ANAL SCI 2024; 40:1023-1030. [PMID: 38430366 DOI: 10.1007/s44211-023-00492-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 12/05/2023] [Indexed: 03/03/2024]
Abstract
Dopamine (DA) is a neuromodulatory molecule that plays critical roles in many biological processes. The dysfunctions of the DA system are closely associated with several nervous system diseases. Therefore, it is urgent to establish a simple and accurate method for DA analysis. In this study, an economic and accurate DA ratiometric sensor was established using dual-emission carbon dots (DE-CDs). DE-CDs were first synthesized by the one-step solvothermal method and two separate fluorescence emission peaks at 340 and 500 nm were observed under the excitation of 310 nm. In the presence of Hg2+, the fluorescence signal at 340 nm was significantly quenched, while the signal at 500 nm keeps stable. Upon adding DA, the quenched signal at 340 nm was significantly recovered, whereas the signal at 500 nm remains stable. Therefore, a novel ratiometric sensor for DA analysis was established. This method shows a good linear range from 500 nM to 100 μM, and the detection limit was calculated to be 80 nM. Moreover, this established method shows excellent specificity and could be applied in real sample analysis, showing great potential for application in clinical research.
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Affiliation(s)
- Yuecheng Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Lingbo Sun
- Medical College of Yan'an University, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China.
| | - Chengjia Li
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Jing Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Shiyu Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - QingQing Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Hongyan Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Analytical Technology and Detection of Yan'an, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China.
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6
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Wu Q, Jiang H, Ren H, Wu Y, Zhou Y, Chen J, Xu X, Wu X. Surface CN bonds mediate photocatalytic CO 2 reduction into efficient CH 4 production in TiO 2-decorated g-C 3N 4 nanosheets. J Colloid Interface Sci 2024; 663:825-833. [PMID: 38447397 DOI: 10.1016/j.jcis.2024.02.171] [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: 12/28/2023] [Revised: 02/17/2024] [Accepted: 02/22/2024] [Indexed: 03/08/2024]
Abstract
Graphitic carbon nitride (g-C3N4, CN) has garnered considerable attention in the field of photocatalysis due to its favorable band gap and high specific surface area. However, its primary practical limitation lies in the strong radiative recombination of lone pair (LP) electronic states, leading to limited efficiency in separating photogenerated carriers and subsequently diminishing photocatalytic performance. In this study, we devised and synthesized a heterojunction photocatalytic system comprising TiO2 nanosheets supported on modified g-C3N4 (MCN), designated as MCN/TiO2. The presence of CN functional groups on the tri-s-triazine nitrogen captures photogenerated electrons by modifying LP electronic states, resulting in a reduction in the fluorescence emission intensity of g-C3N4. Simultaneously, it forms chemical bonds with the supported TiO2 nanosheets, creating an efficient electron transfer pathway for the accumulation of photogenerated electrons at the active Ti sites. Experimentally, the MCN/TiO2 photocatalytic system exhibited optimal performance in CO2 reduction. The CH4 production rate reached 26.59 μmol g-1 h-1, surpassing that of TiO2 and CN/TiO2 by approximately 8 and 3 times, respectively. Furthermore, this photocatalytic system demonstrated exceptional photostability over five cycles, each lasting 4 h. This research offers a valuable approach for the efficient separation and transfer of photogenerated carriers in composite materials based on g-C3N4.
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Affiliation(s)
- Qifan Wu
- National Laboratory of Solid States Microstructures and School of Physics, Nanjing University, Nanjing 210093, China
| | - Haojie Jiang
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School & School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Hengdong Ren
- National Laboratory of Solid States Microstructures and School of Physics, Nanjing University, Nanjing 210093, China
| | - Yin Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School & School of Life Sciences, Nanjing University, Nanjing 210093, China.
| | - Yong Zhou
- National Laboratory of Solid States Microstructures and School of Physics, Nanjing University, Nanjing 210093, China
| | - Jian Chen
- National Laboratory of Solid States Microstructures and Research Institute of Superconductor Electronics, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Xiaobing Xu
- College of Electronic Engineering, Nanjing Xiaozhuang University, Nanjing 211171, China.
| | - Xinglong Wu
- National Laboratory of Solid States Microstructures and School of Physics, Nanjing University, Nanjing 210093, China.
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7
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Hun Seo Y, Elizabeth Aguilar Estrada D, Jang D, Baik S, Lee J, Ha Kim D, Kim S. Aggregation-induced emission carbon dots as Al 3+-mediated nanoaggregate probe for rapid and selective detection of tetracycline. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 310:123925. [PMID: 38262297 DOI: 10.1016/j.saa.2024.123925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/15/2023] [Accepted: 01/19/2024] [Indexed: 01/25/2024]
Abstract
Worldwide abuse of tetracycline (TC) seriously threatens environmental safety and human health. Metal-TC complexes formed by residual TC in the environment can also contribute to the spread of antibiotic resistance. Therefore, monitoring of TC residues is still required. Here, we report novel aggregation-induced emission carbon dots (AIE-Cdots) as nanoaggregate probes for the rapid and selective detection of TC residue. Riboflavin precursors with rotational functional groups led to the development of AIE-Cdots. The aggregation of AIE-Cdots was induced selectively for Al3+, amplifying the fluorescence signals owing to the restricted rotation of the side chains on the AIE-Cdot surface. The fluorescence signal of such Al3+-mediated nanoaggregates (Al3+-NAs) was further triggered by the structural fixation of TC at the Al3+ active sites, suggesting the formation of TC-coordinated Al3+-NAs. A linear correlation was observed in the TC concentration range of 0-10 μM with a detection limit of 42 nM. In addition, the strong Al3+ binding affinity of AIE-Cdots produced similar NAs and enhanced fluorescence signals in Al3+-TC mixtures. These AIE-Cdots-based nanoplatforms have a rapid response, good selectivity, and reliable accuracy for detecting TC or aluminum complexes, meeting the requirements for hazardous substance monitoring and removal in environmental applications.
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Affiliation(s)
- Young Hun Seo
- Biosensor Group, Korea Institute of Science and Technology Europe, Campus E7.1, Saarbrücken 66123, Germany.
| | | | - Dohyub Jang
- Chemical and Biological Integrative Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Seungyun Baik
- Biosensor Group, Korea Institute of Science and Technology Europe, Campus E7.1, Saarbrücken 66123, Germany
| | - Jaeho Lee
- Biosensor Group, Korea Institute of Science and Technology Europe, Campus E7.1, Saarbrücken 66123, Germany
| | - Dong Ha Kim
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Republic of Korea; Basic Sciences Research Institute (Priority Research Institute), Ewha Womans University, 52, Ewhayeodae-Gil, Seodaemun-gu, Seoul 03760, Republic of Korea; Nanobio Energy Materials Center (National Research Facilities and Equipment Center), Ewha Womans University, 52, Ewhayeodae-Gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Sehoon Kim
- Chemical and Biological Integrative Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea; KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea.
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8
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Shi W, Guan L, Ren X, Zhang J, Luo T, Liu C, Lan Y, Chen Z, Chen X, Li X. Effect of aggregation configuration of molecular fluorophore CZA on photoluminescence properties of carbon dots. J Colloid Interface Sci 2024; 659:213-224. [PMID: 38176231 DOI: 10.1016/j.jcis.2023.12.058] [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: 10/03/2023] [Revised: 12/03/2023] [Accepted: 12/09/2023] [Indexed: 01/06/2024]
Abstract
The effect of aggregation configuration of molecular fluorophore citrazinic acid (CZA) on the photoluminescence (PL) properties of carbon dots (CDs) has been investigated using first-principles method. The structural stability of all aggregates has been analyzed, and the results show that the most stable structures are J-type CZA aggregates with head-to-tail configurations and the CZA/CD aggregates are bonded by replacing H atoms on the CD edges with de-OH from the pyridine ring of CZA. The luminescent properties of CZA/CD aggregates are mainly affected by the binding modes and binding sites. When the sites belong to electron-donating groups, electron-withdrawing groups or sp2 domain, the PL spectra of CDs are shifted and the luminescent intensities are significantly enhanced. The results suggest that covalently bonded CZA/CD aggregates are responsible for the high fluorescence quantum yield of CD. Moreover, the distance between the centers of the two pyridine rings in H-type CZA dimers less than 3.5 Å is prone to π-π stacking, leading to fluorescence quenching of aggregates. The present work is helpful in understanding the effect of molecular fluorophores on the PL properties of CDs and provides theoretical guidance for the controllable synthesis of CDs.
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Affiliation(s)
- Weicai Shi
- Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, College of Physics Science and Technology, Hebei University, Baoding 071002, PR China
| | - Li Guan
- Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, College of Physics Science and Technology, Hebei University, Baoding 071002, PR China.
| | - Xiaojie Ren
- Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, College of Physics Science and Technology, Hebei University, Baoding 071002, PR China
| | - Jianen Zhang
- Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, College of Physics Science and Technology, Hebei University, Baoding 071002, PR China
| | - Tao Luo
- Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, College of Physics Science and Technology, Hebei University, Baoding 071002, PR China
| | - Chunzhi Liu
- Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, College of Physics Science and Technology, Hebei University, Baoding 071002, PR China
| | - Youshi Lan
- Department of Radiochemistry, China Institute of Atomic Energy, Beijing 102413, PR China
| | - Zhijuan Chen
- Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, College of Physics Science and Technology, Hebei University, Baoding 071002, PR China
| | - Xiaobo Chen
- Division of Energy, Matter, and Systems, School of Science and Engineering, University of Missouri - Kansas City, KS, MO 64110, United States.
| | - Xu Li
- Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, College of Physics Science and Technology, Hebei University, Baoding 071002, PR China.
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9
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Krasley A, Li E, Galeana JM, Bulumulla C, Beyene AG, Demirer GS. Carbon Nanomaterial Fluorescent Probes and Their Biological Applications. Chem Rev 2024; 124:3085-3185. [PMID: 38478064 PMCID: PMC10979413 DOI: 10.1021/acs.chemrev.3c00581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 03/28/2024]
Abstract
Fluorescent carbon nanomaterials have broadly useful chemical and photophysical attributes that are conducive to applications in biology. In this review, we focus on materials whose photophysics allow for the use of these materials in biomedical and environmental applications, with emphasis on imaging, biosensing, and cargo delivery. The review focuses primarily on graphitic carbon nanomaterials including graphene and its derivatives, carbon nanotubes, as well as carbon dots and carbon nanohoops. Recent advances in and future prospects of these fields are discussed at depth, and where appropriate, references to reviews pertaining to older literature are provided.
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Affiliation(s)
- Andrew
T. Krasley
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Eugene Li
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125, United States
| | - Jesus M. Galeana
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125, United States
| | - Chandima Bulumulla
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Abraham G. Beyene
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Gozde S. Demirer
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125, United States
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10
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Xu F, Dong R, Cui J, Zhang Y, Ren W, Song K, Meng S, Zhang R, Li K, Bai J, Qin Z. Transformation of crystal structure induced by the temperatures in carbon dots (CDs)-based composites with multicolor fluorescence for white Light-Emitting-Diode (WLED). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 310:123958. [PMID: 38281462 DOI: 10.1016/j.saa.2024.123958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/29/2023] [Accepted: 01/22/2024] [Indexed: 01/30/2024]
Abstract
Regulation of the fluorescence through crystalizing from the matrix in the Carbon dots (CDs)-based solid-state materials has been verified to be one of the effective methods, yet there are not only challenges in preparing such materials efficiently, but also insufficient insight into their regulation mechanisms. Here, a one-pot solvothermal route to synthesize a series of CDs-based composites with crystalline matrix is reported. These crystals exhibited multicolor fluorescence with the feature of multi-peaks emissions with increasing temperatures from 140 ℃ to 220 ℃, in which the orange emitting O-CDs@PA and the yellow emitting Y-CDs@PA crystals obtained the FLQYs of 22% and 68% respectively due to relatively stable crystalline structures. After comparative analysis to both crystals in detail, the core and the groups associated with them on the interface between CDs and matrix were adjusted in size and species during structural transformation of the crystal matrix, which changes radically the energy band structures to influence fluorescent emitting of both crystals ultimately. In addition, the reasons resulting in higher FLQY for Y-CDs@PA were provided leveraging the schematic illustration presumed based on the PL properties of both crystals. Because of the optimal optical performances, these fluorescent materials promised to fabricate WLED devices and obtained a number of photometric parameters endowed these WLED devices with the feature of warm-white light.
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Affiliation(s)
- Fengli Xu
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Ruoyu Dong
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Junchao Cui
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Yufei Zhang
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Weijie Ren
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China.
| | - Kai Song
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Shuai Meng
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Rui Zhang
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Kun Li
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China
| | - Jingjing Bai
- Department of Materials Engineering, Taiyuan Institute of Technology, Taiyuan 030008, the People's Republic of China
| | - Zhenxing Qin
- Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, the People's Republic of China.
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11
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Sousa DA, Berberan-Santos MN, Prata JV. Are "Carbon Dots" Always Carbon Dots? Evidence for their Supramolecular Nature from Structural and Dynamic Studies in Solution and in the Pure Solid. Chemistry 2024; 30:e202302955. [PMID: 37943001 DOI: 10.1002/chem.202302955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/10/2023]
Abstract
A model for the morphology (size, shape, and crystallinity) of carbon dots (CDs) in the solid state consistent with the observed photoluminescence in solution is proposed herein. Overwhelming evidence has been collected that links the data coming from solid-state analysis (high-resolution transmission electron microscopy (HRTEM), atomic force microscopy (AFM), and matrix-assisted laser desorption/ionization (MALDI) mass spectrometry (MS)) to that of solution (pulsed-field gradient (PFG)-NMR spectroscopy, time-resolved fluorescence anisotropy (TRFA), and steady-state/time-resolved fluorescence), allowing the establishment of an overall structural model for CDs. According to this model, the so-called carbon dots, observed under HRTEM imaging, are in fact supramolecular organized structures dynamically assembled from small to medium-sized molecular species when the solvent is removed to give the solid form. In this way, the imaged nanoparticles (TEM/AFM) are not covalently bound entities formed during the synthetic process, but instead supramolecular entities formed by noncovalent interactions. These particles, if at all present in solution, have the form of loose associations of relatively small molecules. This study was conducted on CDs obtained from the hydrothermal carbonization (HTC) of a biomass waste (olive wet pomace).
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Affiliation(s)
- Diogo A Sousa
- Department of Chemical Engineering Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, 1959-007, Lisbon, Portugal
- BSIRG-iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB - Institute for Health and Bioeconomy Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - Mário N Berberan-Santos
- BSIRG-iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB - Institute for Health and Bioeconomy Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - José V Prata
- Department of Chemical Engineering Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, 1959-007, Lisbon, Portugal
- CQ-VR-Centro de Química-Vila Real, Universidade de Trás-os-Montes e Alto Douro, 5001-801, Vila Real, Portugal
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12
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Madonia A, Minervini G, Terracina A, Pramanik A, Martorana V, Sciortino A, Carbonaro CM, Olla C, Sibillano T, Giannini C, Fanizza E, Curri ML, Panniello A, Messina F, Striccoli M. Dye-Derived Red-Emitting Carbon Dots for Lasing and Solid-State Lighting. ACS NANO 2023; 17:21274-21286. [PMID: 37870465 PMCID: PMC10655242 DOI: 10.1021/acsnano.3c05566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/17/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
Carbon dots are carbon-based nanoparticles renowned for their intense light-emitting capabilities covering the whole visible light range. Achieving carbon dots emitting in the red region with high efficiency is extremely relevant due to their huge potential in biological applications and in optoelectronics. Currently, photoluminescence in such an energy interval is often associated with polyheterocyclic molecular domains forming during the synthesis that, however, present low emission efficiency and issues in controlling the optical features. Here, we overcome these problems by solvothermally synthesizing carbon dots starting from Neutral Red, a common red-emitting dye, as a molecular precursor. As a result of the synthesis, such molecular fluorophore is incorporated into a carbonaceous core while retaining its original optical properties. The obtained nanoparticles are highly luminescent in the red region, with a quantum yield comparable to that of the starting dye. Most importantly, the nanoparticle carbogenic matrix protects the Neutral Red molecules from photobleaching under ultraviolet excitation while preventing aggregation-induced quenching, thus allowing solid-state emission. These advantages have been exploited to develop a fluorescence-based color conversion layer by fabricating polymer-based highly concentrated solid-state carbon dot nanocomposites. Finally, the dye-based carbon dots demonstrate both stable Fabry-Perot lasing and efficient random lasing emission in the red region.
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Affiliation(s)
- Antonino Madonia
- CNR-IPCF
Bari Division, Italian National Research
Council, Bari, 70126, Italy
| | - Gianluca Minervini
- CNR-IPCF
Bari Division, Italian National Research
Council, Bari, 70126, Italy
- Department
of Electrical and Information Engineering, Polytechnic of Bari, Bari, 70126, Italy
| | - Angela Terracina
- Dipartimento
di Fisica e Chimica “Emilio Segrè”, Università degli Studi di Palermo, Palermo 90123, Italy
| | - Ashim Pramanik
- Dipartimento
di Fisica e Chimica “Emilio Segrè”, Università degli Studi di Palermo, Palermo 90123, Italy
| | - Vincenzo Martorana
- Institute
of Biophysics Palermo Division, Italian
National Research Council, Palermo 90146, Italy
| | - Alice Sciortino
- Dipartimento
di Fisica e Chimica “Emilio Segrè”, Università degli Studi di Palermo, Palermo 90123, Italy
- ATeN
Center, Università degli Studi di
Palermo, Palermo 90123, Italy
| | | | - Chiara Olla
- Department
of Physics, University of Cagliari, Monserrato 09042, Italy
| | - Teresa Sibillano
- CNR-IC
Institute of Crystallography, Italian National
Research Council, Bari 70122, Italy
| | - Cinzia Giannini
- CNR-IC
Institute of Crystallography, Italian National
Research Council, Bari 70122, Italy
| | - Elisabetta Fanizza
- CNR-IPCF
Bari Division, Italian National Research
Council, Bari, 70126, Italy
- Chemistry
Department, University of Bari “Aldo
Moro”, Bari 70126, Italy
| | - Maria L. Curri
- CNR-IPCF
Bari Division, Italian National Research
Council, Bari, 70126, Italy
- Chemistry
Department, University of Bari “Aldo
Moro”, Bari 70126, Italy
| | - Annamaria Panniello
- CNR-IPCF
Bari Division, Italian National Research
Council, Bari, 70126, Italy
| | - Fabrizio Messina
- Dipartimento
di Fisica e Chimica “Emilio Segrè”, Università degli Studi di Palermo, Palermo 90123, Italy
- ATeN
Center, Università degli Studi di
Palermo, Palermo 90123, Italy
| | - Marinella Striccoli
- CNR-IPCF
Bari Division, Italian National Research
Council, Bari, 70126, Italy
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13
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Habteyes TG, Westphal ER, Plackowski KM, Kotula PG, Meyerson ML, White SL, Corbin WC, Ghosh K, Grey JK. Hierarchical Self-Assembly of Carbon Dots into High-Aspect-Ratio Nanowires. NANO LETTERS 2023; 23:9474-9481. [PMID: 37831934 DOI: 10.1021/acs.nanolett.3c02977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
We report a spontaneous and hierarchical self-assembly mechanism of carbon dots prepared from citric acid and urea into nanowire structures with large aspect ratios (>50). Scattering-type scanning near-field optical microscopy (s-SNOM) with broadly tunable mid-IR excitation was used to interrogate details of the self-assembly process by generating nanoscopic chemical maps of local wire morphology and composition. s-SNOM images capture the evolution of wire formation and the complex interplay between different chemical constituents directing assembly over the nano- to microscopic length scales. We propose that residual citrate promotes tautomerization of melamine surface functionalities to produce supramolecular shape synthons comprised of melamine-cyanurate adducts capable of forming long-range and highly directional hydrogen-bonding networks. This intrinsic, heterogeneity-driven self-assembly mechanism reflects synergistic combinations of high chemical specificity and long-range cooperativity that may be harnessed to reproducibly fabricate functional structures on arbitrary surfaces.
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Affiliation(s)
- Terefe G Habteyes
- Department of Chemistry, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Eric R Westphal
- Sandia National Laboratories, 1515 Eubank Drive SE, Albuquerque, New Mexico 87185, United States
| | - Kenneth M Plackowski
- Sandia National Laboratories, 1515 Eubank Drive SE, Albuquerque, New Mexico 87185, United States
- Department of Chemistry, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Paul G Kotula
- Sandia National Laboratories, 1515 Eubank Drive SE, Albuquerque, New Mexico 87185, United States
| | - Melissa L Meyerson
- Sandia National Laboratories, 1515 Eubank Drive SE, Albuquerque, New Mexico 87185, United States
| | - Stephanie L White
- Sandia National Laboratories, 1515 Eubank Drive SE, Albuquerque, New Mexico 87185, United States
| | - W Cody Corbin
- Sandia National Laboratories, 1515 Eubank Drive SE, Albuquerque, New Mexico 87185, United States
| | - Koushik Ghosh
- Sandia National Laboratories, 1515 Eubank Drive SE, Albuquerque, New Mexico 87185, United States
| | - John K Grey
- Sandia National Laboratories, 1515 Eubank Drive SE, Albuquerque, New Mexico 87185, United States
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14
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Hoang NM, Ngoc NTB, Huong PTL, Huyen PTT, Duy DQ, Dao VD, Tu LT. Dual Emission Carbon Dots for Simultaneous Detections of Pb 2+ and Fe 3+ Ions in Water Via Distinct Sensing Mechanisms. J Fluoresc 2023; 33:1359-1366. [PMID: 36695956 DOI: 10.1007/s10895-022-03139-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/28/2022] [Indexed: 01/26/2023]
Abstract
Herein, dual-emission carbon dots (DE-CDs) were synthesized using a one-pot hydrothermal method. DE-CDs exhibited two well-separated peaks at 433 and 513 nm under ultraviolet excitation. The prepared DE-CDs offer selective detection of Fe3+ ions via inner filter effect (IFE) and Pb2+ ions via aggregation-induced enhancement (AIE). The obtained DE-CDs showed a good affinity for both Fe3+ and Pb2+ ions in the presence of various interfering ions. The limits of detection were 0.797 ppm and 4.739 ppm for Pb2+ and Fe3+, respectively. The finding reveals the huge potential of DE-CDs for the selective detection of multiple targets in one solution.
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Affiliation(s)
- Nguyen Minh Hoang
- Faculty of Physics, VNU University of Science, 334 Nguyen Trai, 100000, Hanoi, Vietnam
- Department of Physics & Biophysics, Vietnam Military Medical University, 160 Phung Hung, 100000, Hanoi, Vietnam
| | - Nguyen Thi Bich Ngoc
- Faculty of Physics, VNU University of Science, 334 Nguyen Trai, 100000, Hanoi, Vietnam
| | - Phan Thi Lan Huong
- Department of Physics & Biophysics, Vietnam Military Medical University, 160 Phung Hung, 100000, Hanoi, Vietnam
| | - Phan Thi Thanh Huyen
- Faculty of Electronics and Telecommunications, Academy of Cryptography Techniques, 1000, Hanoi, Vietnam
| | - Dao Quang Duy
- Faculty of Physics, VNU University of Science, 334 Nguyen Trai, 100000, Hanoi, Vietnam
| | - Van-Duong Dao
- Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, 100000, Hanoi, Vietnam.
| | - Le Tuan Tu
- Faculty of Physics, VNU University of Science, 334 Nguyen Trai, 100000, Hanoi, Vietnam.
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15
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Zhao L, Cao X, Jang X, Zhang Y, Shang B, Sun Z, Zhan Y. One-pot synthesis of nitrogen-doped carbonized polymer dots with tunable emission for multicolor light-emitting diodes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122815. [PMID: 37196549 DOI: 10.1016/j.saa.2023.122815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/25/2023] [Accepted: 04/30/2023] [Indexed: 05/19/2023]
Abstract
Carbonized polymer dots (CPDs) have highly potential application value in the field of optoelectronic devices due to their preferable stability, excellent optical properties and low cost. Here, the nitrogen-doped carbonized polymer dots (HNCDs) with self-quenching-resistant fluorescence were prepared via a simple solvothermal method with citric acid, urea and 2-hydroxyethyl methacrylate (HEMA) as raw materials. The structure and optical properties of the HNCDs have been explored in detail by various contrast experiments. The results show that HEMA form the poly(HEMA) to modify on the surface of carbonized core, which can overcome the quenching effect of carbonized core. The nitrogen doping is crucial for the red shift emission of solid-state HNCDs. Furthermore, the HNCDs exhibit concentration-dependent emission and excellent compatibility with silicone sol, which lead to their emission red shifted from blue to red with increasing concentration. The HNCDs were further applied to construct the light-emitting diodes (LEDs), and the multicolor LEDs ranging from blue to red can be prepared by simply varying the type of chips and adjusting the concentration of HNCDs in encapsulating material.
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Affiliation(s)
- Liuxi Zhao
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Xiyue Cao
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Xuanfeng Jang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Yuhong Zhang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Bin Shang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China.
| | - Zhengguang Sun
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
| | - Yuan Zhan
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
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16
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Arcudi F, Đorđević L. Supramolecular Chemistry of Carbon-Based Dots Offers Widespread Opportunities. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300906. [PMID: 37078923 DOI: 10.1002/smll.202300906] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/01/2023] [Indexed: 05/03/2023]
Abstract
Carbon dots are an emerging class of nanomaterials that has recently attracted considerable attention for applications that span from biomedicine to energy. These photoluminescent carbon nanoparticles are defined by characteristic sizes of <10 nm, a carbon-based core and various functional groups at their surface. Although the surface groups are widely used to establish non-covalent bonds (through electrostatic interactions, coordinative bonds, and hydrogen bonds) with various other (bio)molecules and polymers, the carbonaceous core could also establish non-covalent bonds (ππ stacking or hydrophobic interactions) with π-extended or apolar compounds. The surface functional groups, in addition, can be modified by various post-synthetic chemical procedures to fine-tune the supramolecular interactions. Our contribution categorizes and analyzes the interactions that are commonly used to engineer carbon dots-based materials and discusses how they have allowed preparation of functional assemblies and architectures used for sensing, (bio)imaging, therapeutic applications, catalysis, and devices. Using non-covalent interactions as a bottom-up approach to prepare carbon dots-based assemblies and composites can exploit the unique features of supramolecular chemistry, which include adaptability, tunability, and stimuli-responsiveness due to the dynamic nature of the non-covalent interactions. It is expected that focusing on the various supramolecular possibilities will influence the future development of this class of nanomaterials.
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Affiliation(s)
- Francesca Arcudi
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, Padova, 35131, Italy
| | - Luka Đorđević
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, Padova, 35131, Italy
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17
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Olla C, Cappai A, Porcu S, Stagi L, Fantauzzi M, Casula MF, Mocci F, Corpino R, Chiriu D, Ricci PC, Carbonaro CM. Exploring the Impact of Nitrogen Doping on the Optical Properties of Carbon Dots Synthesized from Citric Acid. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1344. [PMID: 37110929 PMCID: PMC10141696 DOI: 10.3390/nano13081344] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/07/2023] [Accepted: 04/09/2023] [Indexed: 06/19/2023]
Abstract
The differences between bare carbon dots (CDs) and nitrogen-doped CDs synthesized from citric acid as a precursor are investigated, aiming at understanding the mechanisms of emission and the role of the doping atoms in shaping the optical properties. Despite their appealing emissive features, the origin of the peculiar excitation-dependent luminescence in doped CDs is still debated and intensively being examined. This study focuses on the identification of intrinsic and extrinsic emissive centers by using a multi-technique experimental approach and computational chemistry simulations. As compared to bare CDs, nitrogen doping causes the decrease in the relative content of O-containing functional groups and the formation of both N-related molecular and surface centers that enhance the quantum yield of the material. The optical analysis suggests that the main emission in undoped nanoparticles comes from low-efficient blue centers bonded to the carbogenic core, eventually with surface-attached carbonyl groups, the contribution in the green range being possibly related to larger aromatic domains. On the other hand, the emission features of N-doped CDs are mainly due to the presence of N-related molecules, with the computed absorption transitions calling for imidic rings fused to the carbogenic core as the potential structures for the emission in the green range.
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Affiliation(s)
- Chiara Olla
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy
| | - Antonio Cappai
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy
| | - Stefania Porcu
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy
| | - Luigi Stagi
- Laboratory of Materials Science and Nanotechnology, CR-INSTM, Department of Chemical, Physics, Mathematics and Natural Sciences, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Marzia Fantauzzi
- Department of Chemistry and Geological Science, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy
| | - Maria Francesca Casula
- Department of Mechanical, Chemical, and Materials Engineering, CINSA and INSTM, University of Cagliari, Via Marengo 2, I-09123 Cagliari, Italy
| | - Francesca Mocci
- Department of Chemistry and Geological Science, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy
| | - Riccardo Corpino
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy
| | - Daniele Chiriu
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy
| | - Pier Carlo Ricci
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy
| | - Carlo Maria Carbonaro
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy
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18
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Reva Y, Jana B, Langford D, Kinzelmann M, Bo Y, Schol PR, Scharl T, Zhao X, Crisp RW, Drewello T, Clark T, Cadranel A, Guldi DM. Understanding the Visible Absorption of Electron Accepting and Donating CNDs. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2207238. [PMID: 36748284 DOI: 10.1002/smll.202207238] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/23/2022] [Indexed: 06/18/2023]
Abstract
Carbon nanodots (CNDs) synthesized from citric acid and formyl derivatives, that is, formamide, urea, or N-methylformamide, stand out through their broad-range visible-light absorbance and extraordinary photostability. Despite their potential, their use has thus far been limited to imaging research. This work has now investigated the link between CNDs' photochemical properties and their chemical structure. Electron-rich, yellow carbon nanodots (yCNDs) are obtained with in situ addition of NaOH during the synthesis, whereas otherwise electron-poor, red carbon nanodots (rCNDs) are obtained. These properties originate from the reduced and oxidized dimer of citrazinic acid within the matrix of yCNDs and rCNDs, respectively. Remarkably, yCNDs deposited on TiO2 give a 30% higher photocurrent density of 0.7 mA cm-2 at +0.3 V versus Ag/AgCl under Xe-lamp irradiation (450 nm long-pass filter, 100 mW cm-2 ) than rCNDs. The difference in overall photoelectric performance is due to fundamentally different charge-transfer mechanisms. These depend on either the electron-accepting or the electron-donating nature of the CNDs, as is evident from photoelectrochemical tests with TiO2 and NiO and time-resolved spectroscopic measurements.
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Affiliation(s)
- Yana Reva
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Bikash Jana
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
- Technion - Israel Institute of Technology, Schulich Faculty of Chemistry, Technion, Haifa, 3200008, Israel
| | - Daniel Langford
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Marina Kinzelmann
- Department of Chemistry and Pharmacy, Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Yifan Bo
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
- Department of Chemistry and Pharmacy, Computer-Chemistry Center, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstrasse 25, 91052, Erlangen, Germany
| | - Peter R Schol
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Tobias Scharl
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Xinyi Zhao
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Ryan W Crisp
- Department of Chemistry and Pharmacy, Chair of Chemistry of Thin Film Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 3, 91058, Erlangen, Germany
| | - Thomas Drewello
- Department of Chemistry and Pharmacy, Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Timothy Clark
- Department of Chemistry and Pharmacy, Computer-Chemistry Center, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstrasse 25, 91052, Erlangen, Germany
| | - Alejandro Cadranel
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Dirk M Guldi
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Physical Chemistry I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
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19
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Ratre P, Nazeer N, Kumari R, Thareja S, Jain B, Tiwari R, Kamthan A, Srivastava RK, Mishra PK. Carbon-Based Fluorescent Nano-Biosensors for the Detection of Cell-Free Circulating MicroRNAs. BIOSENSORS 2023; 13:226. [PMID: 36831992 PMCID: PMC9953975 DOI: 10.3390/bios13020226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/02/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
Currently, non-communicable diseases (NCDs) have emerged as potential risks for humans due to adopting a sedentary lifestyle and inaccurate diagnoses. The early detection of NCDs using point-of-care technologies significantly decreases the burden and will be poised to transform clinical intervention and healthcare provision. An imbalance in the levels of circulating cell-free microRNAs (ccf-miRNA) has manifested in NCDs, which are passively released into the bloodstream or actively produced from cells, improving the efficacy of disease screening and providing enormous sensing potential. The effective sensing of ccf-miRNA continues to be a significant technical challenge, even though sophisticated equipment is needed to analyze readouts and expression patterns. Nanomaterials have come to light as a potential solution as they provide significant advantages over other widely used diagnostic techniques to measure miRNAs. Particularly, CNDs-based fluorescence nano-biosensors are of great interest. Owing to the excellent fluorescence characteristics of CNDs, developing such sensors for ccf-microRNAs has been much more accessible. Here, we have critically examined recent advancements in fluorescence-based CNDs biosensors, including tools and techniques used for manufacturing these biosensors. Green synthesis methods for scaling up high-quality, fluorescent CNDs from a natural source are discussed. The various surface modifications that help attach biomolecules to CNDs utilizing covalent conjugation techniques for multiple applications, including self-assembly, sensing, and imaging, are analyzed. The current review will be of particular interest to researchers interested in fluorescence-based biosensors, materials chemistry, nanomedicine, and related fields, as we focus on CNDs-based nano-biosensors for ccf-miRNAs detection applications in the medical field.
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Affiliation(s)
- Pooja Ratre
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Nazim Nazeer
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Roshani Kumari
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Suresh Thareja
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda 151401, India
| | - Bulbul Jain
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Rajnarayan Tiwari
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Arunika Kamthan
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Rupesh K. Srivastava
- Department of Biotechnology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Pradyumna Kumar Mishra
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
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20
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Zou WS, Xu Y, Kong W, Wang Y, Zhang J, Li W, Yu HQ. One-Pot Three Carbon Dots with Various Lifetimes Rooted in Different Decarboxylation Degrees for Matrix-Free, Anti-Oxygen, and Time-Resolved Information Encryption and Cellular Imaging. Anal Chem 2023; 95:1985-1994. [PMID: 36607742 DOI: 10.1021/acs.analchem.2c04336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Activating long-lived room temperature phosphorescence (RTP) in the aqueous environment and thus realizing matrix-free, anti-oxygen, and time-resolved information encryption and cellular imaging remain a great challenge. Here, we fabricated three types of carbon dots (C-dots), i.e., fluorescent C-dots (F-C-dots) and two types of phosphorescent C-dots denoted as Pw-C-dots and Py-C-dots by a one-pot strategy. Their formation was attributed to the difference in the decarboxylation degree at high temperatures using trimesic acid (TMA) as a sole precursor. Unexpectedly, the yield reached as high as ∼92%, and the proportions were ∼27% for F-C-dots, ∼17% for Pw-C-dots, and ∼56% for Py-C-dots. These nanomaterials could help implement carbon peaking and carbon neutrality. Both green RTP of the two C-dots resulted from the small energy gap (ΔEST). These two RTP C-dots had a long lifetime of over 270 ms with a relatively high quantum yield (4.5 and 6.2%). They exhibited excellent photostability and anti-photobleaching performances. The dry and wet powders of the RTP C-dots were applied to high-level information encryption. The lifelike patterns were greatly different from those of the original ones and could last for several seconds to the naked eye, demonstrating that the RTP C-dots could be potentially employed as anti-oxygen and time-resolved contrast reagents. Most significantly, the cellular imaging experiments showed that the biofriendly PVP-coated Py-C-dots could localize at lysosomes and sustain hundreds of milliseconds. This approach not only pioneers a time-resolved lysosome localization model but also opens up a promising door for anti-oxygen and time-resolved RTP cytoimaging.
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Affiliation(s)
- Wen-Sheng Zou
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Yu Xu
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
| | - Weili Kong
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
| | - Yaqin Wang
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
| | - Jun Zhang
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
| | - Weihua Li
- School of Materials and Chemical Engineering, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230022, China
| | - Han-Qing Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
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21
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Fischer G. The chemistry of citrazinic acid (2,6-dihydroxyisonicotinic acid). ADVANCES IN HETEROCYCLIC CHEMISTRY 2023. [DOI: 10.1016/bs.aihch.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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22
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Kasprzyk W, Świergosz T, Romańczyk PP, Feldmann J, Stolarczyk JK. The role of molecular fluorophores in the photoluminescence of carbon dots derived from citric acid: current state-of-the-art and future perspectives. NANOSCALE 2022; 14:14368-14384. [PMID: 36156633 DOI: 10.1039/d2nr03176k] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Carbon dots (CDs), an emerging class of nanomaterials, have attracted considerable attention due to their intriguing photophysical properties. Despite their indisputable potential of utilization in many fascinating areas of research and life, some fundamental aspects concerning their structure and the origin of their photoluminescence (PL) properties still await clarification. The mechanism of PL emission of CDs is associated with their structure, which is dependent on the carbonization process. At the initial stages of CD synthesis via a bottom-up approach, molecular fluorophores are considered to dominate the optical characteristics of the resulting nanomaterials. In this review, the recent progress in the use of molecular state theory for explanation of the structure-property relationship in CDs is summarized. This review focuses exclusively on the molecular fluorophores existing in nanomaterials prepared from citric acid (CA) as one of the most frequent carbon sources reported for the bottom-up synthesis of CDs. Consequently, the most relevant transformations of CA and the history of molecular fluorophores derived from it are described, followed by an in-depth discussion on their relevance in understanding the specific photophysical properties of blue-, green-, and red-emitting CDs. Finally, the challenging issues and future perspectives of molecular state PL mechanism exploration in CDs are highlighted.
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Affiliation(s)
- Wiktor Kasprzyk
- Department of Biotechnology and Physical Chemistry, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland.
| | - Tomasz Świergosz
- Department of Chemical Technology and Environmental Analysis, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland
| | - Piotr P Romańczyk
- Department of Biotechnology and Physical Chemistry, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland.
| | - Jochen Feldmann
- Chair for Photonics and Optoelectronics, Nano-Institute Munich, Department of Physics, Ludwig-Maximilians-Universität München, Königinstrasse 10, Munich, 80539, Germany
| | - Jacek K Stolarczyk
- Chair for Photonics and Optoelectronics, Nano-Institute Munich, Department of Physics, Ludwig-Maximilians-Universität München, Königinstrasse 10, Munich, 80539, Germany
- Smoluchowski Institute of Physics, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Krakow, Poland
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23
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Ratiometric detection of propafenone hydrochloride with one-pot synthesized dual emissive carbon dots. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02489-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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24
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Duan Q, Si S, Sang S, Wang J, Zhang B, Guan Z, Jia M, Xue J. Study on the photothermal performance of supra-(carbon nanodots) developed with dicyandiamide N-doped. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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25
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Zirak Hassan Kiadeh S, Ghaee A, Pishbin F, Nourmohammadi J, Farokhi M. Nanocomposite pectin fibers incorporating folic acid-decorated carbon quantum dots. Int J Biol Macromol 2022; 216:605-617. [PMID: 35809673 DOI: 10.1016/j.ijbiomac.2022.07.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/24/2022] [Accepted: 07/04/2022] [Indexed: 11/19/2022]
Abstract
Pectin has recently attracted increasing attention as an alternative biomaterial commonly used in biomedical and pharmaceutical fields. It shows several promising properties, including good biocompatibility, health benefits, nontoxicity, and biodegradation. In this research, novel nanocomposite fibers composed of folic acid-decorated carbon dots (CDs) in pectin/PEO matrix were fabricated using the electrospinning technique, which was never reported previously. Nitrogen-doped and nitrogen, sulfur-doped CDs were synthesized with average diameters of 2.74 nm and 2.17 nm using the one-step hydrothermal method, studied regarding their physicochemical, optical, and biocompatibility properties. The relative Quantum yields of N-CDs and N, S doped CDs were measured to be 54.7 % and 30.2 %, respectively. Nanocomposite fibers containing CDs were prepared, and their morphology, physicochemical properties, conductivity, drug release behavior, and cell viability were characterized. The results indicated that CDs improve fibrous scaffolds' tensile strength from 13.74 to 35.22 MPa while maintaining comparable extensibility. Furthermore, by incorporation of CDs in the prepared fibers conductivity enhanced from 8.69 × 10-9 S·m-1 to 1.36 × 10-4 S·m-1. The nanocomposite fibrous scaffold was also biocompatible with controlled drug release over 212 h, potentially promising tissue regeneration.
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Affiliation(s)
- Shahrzad Zirak Hassan Kiadeh
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Azadeh Ghaee
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
| | - Fatemehsadat Pishbin
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Jhamak Nourmohammadi
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Mehdi Farokhi
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
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26
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Distefano A, Calì F, Gaeta M, Tuccitto N, Auditore A, Licciardello A, D'Urso A, Lee KJ, Monasson O, Peroni E, Grasso G. Carbon dots surface chemistry drives fluorescent properties: New tools to distinguish isobaric peptides. J Colloid Interface Sci 2022; 625:405-414. [PMID: 35724463 DOI: 10.1016/j.jcis.2022.06.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/16/2022] [Accepted: 06/10/2022] [Indexed: 10/31/2022]
Abstract
The possibility to design rational carbon dots surface functionalization for specific analytical and bioanalytical applications is hindered by the lack of a full knowledge of the surface chemical features driving fluorescent properties. In this model study, we have synthesized four different peptides, three of which are isobaric and not distinguishable by common MSMS experiments. After having characterized the peptides conformations by CD analyses, we have covalently bonded all four peptides to carbon dots by using different experimental procedures, which produce different functional groups on the carbon dots surface. The peptide orientations obtained on the differently functionalized surface of the nanoparticles were different and produced different fluorescent responses. The reported results indicate the possibility to design amino and carboxyl enriched surface carbon dots to answer specific chemical requirements, paving the way for the use of these nanoparticles as a versatile and useful new chemical and biochemical tool.
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Affiliation(s)
- Alessia Distefano
- Chemical Sciences Department, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Federico Calì
- Chemical Sciences Department, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Massimiliano Gaeta
- Chemical Sciences Department, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Nunzio Tuccitto
- Chemical Sciences Department, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Alessandro Auditore
- Chemical Sciences Department, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Antonino Licciardello
- Chemical Sciences Department, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Alessandro D'Urso
- Chemical Sciences Department, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Kwang-Jin Lee
- Chemical Sciences Department, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy; CY Cergy Paris Université, CNRS, BioCIS, 95000 Cergy Pontoise, France; Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France
| | - Olivier Monasson
- CY Cergy Paris Université, CNRS, BioCIS, 95000 Cergy Pontoise, France; Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France; CY Cergy Paris Université, CY PeptLab, 95000 Cergy Pontoise, France
| | - Elisa Peroni
- CY Cergy Paris Université, CNRS, BioCIS, 95000 Cergy Pontoise, France; Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France; CY Cergy Paris Université, CY PeptLab, 95000 Cergy Pontoise, France
| | - Giuseppe Grasso
- Chemical Sciences Department, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy.
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27
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Ye T, Cheng P, Zeng H, Yao D, Pan X, Jiang H, Ding J. Pressure-Induced Bifurcation in the Photoluminescence of Red Carbon Quantum Dots: Coexistence of Emissions from Surface Groups and Nitrogen-Doped Cores. J Phys Chem Lett 2022; 13:4768-4777. [PMID: 35612965 DOI: 10.1021/acs.jpclett.2c01161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Carbon quantum dots (CDs) with favorable fluorescent properties have stimulated considerable effort to modulate their photoluminescence (PL) for bioimaging and sensing. However, the fluorescent mechanisms are still only partially understood due to the diverse physicochemical properties of CDs prepared by various synthesis methods and postpreparation processes. In this report, pressure-induced bifurcation of PL is reported in red carbon quantum dots (R-CDs) for the first time. The splitting of PL into an irreversible blue-shifted peak and a reversible red-shifted peak under pressure suggests the coexistence of multiple fluorescent mechanisms in R-CDs, i.e., emissions from surface groups and nitrogen-doped cores. The concentration and excitation laser energy dependencies of pressure-induced bifurcation, as well as the time-resolved PL, further support the coexistence of multiple emitters. Our results provide a method for distinguishing between the different fluorescent mechanisms related to surface groups and carbon cores in CDs.
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Affiliation(s)
- Tingting Ye
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Peng Cheng
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Hong Zeng
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Deyuan Yao
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Xiaomei Pan
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Huachao Jiang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Junfeng Ding
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
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28
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Esmaeili M, Wu Z, Chen D, Singh A, Sonar P, Thiel D, Li Q. Composition and concentration-dependent photoluminescence of nitrogen-doped carbon dots. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103560] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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29
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Mou Z, Gao Z, Hu Y. Orange emissive carbon dots for fluorescent determination of hypoxanthine in fish. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 269:120734. [PMID: 34922290 DOI: 10.1016/j.saa.2021.120734] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/26/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
Sensitive determination of hypoxanthine (HX), an indicator reflecting the degradation of meat and fish, is significantly important in monitoring food freshness. Herein, we design a novel sensor consisting of orange emissive carbon dots (O-CDs), nitrotetrazolium blue chloride (NTBC), and xanthine oxidase (XOD) for fluorescence turn-off detection of HX. O-CDs, possessing a high fluorescence quantum yield of 37%, are synthesized by hydrothermal treatment of 2,3-diaminopyridine in sulfuric acid. NTBC can react with HX/XOD-generated H2O2 and O2- to yield a violet-colored formazan, which remarkably quenches the orange fluorescence of O-CDs through inner filter effect. There is a linearity between the quenching efficiency and HX concentration in the range of 2-250 μM, and the limit of detection is 0.61 μM, lower than those of most reported HX sensors. In addition, the proposed method exhibits excellent selectivity, and can be applied to quantify HX in fish samples with satisfactory results.
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Affiliation(s)
- Zehuai Mou
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China; Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Ningbo University, Ningbo 315211, China
| | - Zhijin Gao
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Yaoping Hu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China; Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Ningbo University, Ningbo 315211, China; State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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30
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Yu R, Liang S, Ru Y, Li L, Wang Z, Chen J, Chen L. A Facile Preparation of Multicolor Carbon Dots. NANOSCALE RESEARCH LETTERS 2022; 17:32. [PMID: 35258709 PMCID: PMC8904681 DOI: 10.1186/s11671-022-03661-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 01/13/2022] [Indexed: 05/23/2023]
Abstract
Carbon dots (CDs) have raised broad interest because of their great potential in the fluorescence related fields, such as photocatalysis and bioimaging. CDs exhibit different optical properties when dissolved in various solvents. However, the effects of solvents during the process of preparation on the fluorescence emission of CDs are still unclear. In this work, CDs were prepared by a simple one-pot solvothermal route. Typical critic acid and thiourea were used as precursors. Through changing the volume ratio of water to N,N-dimethylformamide (DMF), we have obtained color tunable CDs, with the emission wavelength from 450 to 640 nm. TEM images, Raman and XPS spectra indicate that the particle size of CDs and the content of surface functional groups (C-N/C-S and C≡N bonds) increase with the increasing ratio of DMF to water, which results in the optimal emission wavelength red-shifted. The prepared multicolor CDs may have prospects in the lighting applications.
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Affiliation(s)
- Risheng Yu
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China
| | - Sen Liang
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China
| | - Yi Ru
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China
| | - Lu Li
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China
| | - Zhikun Wang
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China
| | - Junlang Chen
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China.
| | - Liang Chen
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China.
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31
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Olla C, Porcu S, Secci F, Ricci PC, Carbonaro CM. Towards N-N-Doped Carbon Dots: A Combined Computational and Experimental Investigation. MATERIALS (BASEL, SWITZERLAND) 2022; 15:1468. [PMID: 35208012 PMCID: PMC8880414 DOI: 10.3390/ma15041468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/27/2022] [Accepted: 02/09/2022] [Indexed: 02/04/2023]
Abstract
The introduction of N doping atoms in the carbon network of Carbon Dots is known to increase their quantum yield and broaden the emission spectrum, depending on the kind of N bonding introduced. N doping is usually achieved by exploiting amine molecules in the synthesis. In this work, we studied the possibility of introducing a N-N bonding in the carbon network by means of hydrothermal synthesis of citric acid and hydrazine molecules, including hydrated hydrazine, di-methylhydrazine and phenylhydrazine. The experimental optical features show the typical fingerprints of Carbon Dots formation, such as nanometric size, excitation dependent emission, non-single exponential decay of photoluminescence and G and D vibrational bands in the Raman spectra. To explain the reported data, we performed a detailed computational investigation of the possible products of the synthesis, comparing the simulated absorbance spectra with the experimental optical excitation pattern. The computed Raman spectra corroborate the hypothesis of the formation of pyridinone derivatives, among which the formation of small polymeric chains allowed the broad excitation spectra to be experimentally observed.
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Affiliation(s)
- Chiara Olla
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy; (S.P.); (P.C.R.)
| | - Stefania Porcu
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy; (S.P.); (P.C.R.)
| | - Francesco Secci
- Department of Chemistry and Geological Science, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy;
| | - Pier Carlo Ricci
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy; (S.P.); (P.C.R.)
| | - Carlo Maria Carbonaro
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy; (S.P.); (P.C.R.)
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32
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Development of Fluorescent Carbon Nanoparticle-Based Probes for Intracellular pH and Hypochlorite Sensing. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10020064] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Acid-base and redox reactions are important mechanisms that affect the optical properties of fluorescent probes. Fluorescent carbon nanoparticles (CNPs) that possess tailored surface functionality enable a prompt response to regional stimuli, offering a useful platform for detection, sensing, and imaging. In this study, mPA CNPs were developed through one-pot hydrothermal reaction as a novel fluorescent probe (quantum yield = 10%) for pH and hypochlorite sensing. m-Phenylenediamine was chosen as the major component of CNPs for pH and hypochlorite responsiveness. Meanwhile, ascorbic acid with many oxygen-containing groups was introduced to generate favorable functionalities for improved water solubility and enhanced sensing response. Thus, the mPA CNPs could serve as a pH probe and a turn-off sensor toward hypochlorite at neutral pH through fluorescence change. The as-prepared mPA CNPs exhibited a linear fluorescence response over the pH ranges from pH 5.5 to 8.5 (R2 = 0.989), and over the concentration range of 0.125–1.25 μM for hypochlorite (R2 = 0.985). The detection limit (LOD) of hypochlorite was calculated to be 0.029 μM at neutral pH. The mPA CNPs were further applied to the cell imaging. The positively charged surface and nanoscale dimension of the mPA CNPs lead to their efficient intracellular delivery. The mPA CNPs were also successfully used for cell imaging and sensitive detection of hypochlorite as well as pH changes in biological systems. Given these desirable performances, the as-synthesized fluorescent mPA CNPs shows great potential as an optical probe for real-time pH and hypochlorite monitoring in living cells.
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33
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Fan P, Liu C, Hu C, Li F, Lin X, Xiao F, Liang H, Li L, Yang S. Orange-emissive N,S-co-doped carbon dots for label-free and sensitive fluorescence assay of vitamin B 12. NEW J CHEM 2022. [DOI: 10.1039/d1nj04706j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
N,S-CDs with orange fluorescent emission were synthesized via a hydrothermal method using o-phenylenediamine and thiourea. A novel fluorometric method for the determination of VB12 based on the IFE was established.
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Affiliation(s)
- Pengfei Fan
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Can Liu
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Congcong Hu
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Feifei Li
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Xi Lin
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Fubing Xiao
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Hao Liang
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Le Li
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
| | - Shengyuan Yang
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang, Hunan, 421001, People's Republic of China
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34
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Moniruzzaman M, Dutta SD, Hexiu J, Ganguly K, Lim KT, Kim J. Polyphenol derived bioactive carbon quantum dots incorporated multifunctional hydrogel as oxidative stress attenuator for antiaging and in vivo wound-healing applications. Biomater Sci 2022; 10:3527-3539. [DOI: 10.1039/d2bm00424k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Upregulation of certain enzymes, such as collagenase, tyrosinase, and elastase, is triggered by several extrinsic environmental factors, such as temperature, UV radiation, humidity, and stress, and leads to elasticity loss...
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35
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Kumar P, Dua S, Kaur R, Kumar M, Bhatt G. A review on advancements in carbon quantum dots and their application in photovoltaics. RSC Adv 2022; 12:4714-4759. [PMID: 35425490 PMCID: PMC8981368 DOI: 10.1039/d1ra08452f] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/23/2022] [Accepted: 01/04/2022] [Indexed: 02/05/2023] Open
Abstract
Carbon quantum dots are a new frontier in the field of fluorescent nanomaterials, and they exhibit fascinating properties such as biocompatibility, low toxicity, eco-friendliness, good water solubility and photostability. In addition, the synthesis of these nanoparticles is facile, rapid, and satisfies green chemistry principles. CQDs have easily tunable optical properties and have found applications in bioimaging, nanomedicine, drug delivery, solar cells, light-emitting diodes, photocatalysis, electrocatalysis and other related areas. This article systematically reviews carbon quantum dot structure, their synthesis techniques, recent advancements, the effects of doping and surface engineering on their optical properties, and related photoluminescence models in detail. The challenges associated with these nanomaterials and their prospects are discussed, and special emphasis has been placed on the application of carbon quantum dots in enhancing the performance of photovoltaics and white light-emitting diodes. This review puts forth the in-depth understanding of the fundamentals of carbon quantum dots(CQDs), recent advancements in the field including a thorough discussion on different roles of CQDs to enhance the performance of solar cells and white-LEDs.![]()
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Affiliation(s)
- Pawan Kumar
- Department of Electronic Science, South Campus University of Delhi, New Delhi-110021, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Shweta Dua
- Bhaskarcaharya College of Applied Sciences, University of Delhi, New Delhi-110075, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Ravinder Kaur
- Deen Dayal Upadhyaya College, University of Delhi, New Delhi-110075, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Mahesh Kumar
- CSIR-National Physical Laboratory (NPL), New Delhi-110012, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Geeta Bhatt
- Deen Dayal Upadhyaya College, University of Delhi, New Delhi-110075, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
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36
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Gadly T, Chakraborty G, Tyagi M, Patro BS, Dutta B, Potnis A, Chandwadkar P, Acharya C, Suman SK, Mukherjee A, Neogy S, Wadawale A, Sahoo S, Chauhan N, Ghosh SK. Carbon nano-dot for cancer studies as dual nano-sensor for imaging intracellular temperature or pH variation. Sci Rep 2021; 11:24341. [PMID: 34934094 PMCID: PMC8692618 DOI: 10.1038/s41598-021-03686-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 11/30/2021] [Indexed: 12/01/2022] Open
Abstract
Cellular temperature and pH govern many cellular physiologies, especially of cancer cells. Besides, attaining higher cellular temperature plays key role in therapeutic efficacy of hyperthermia treatment of cancer. This requires bio-compatible, non-toxic and sensitive probe with dual sensing ability to detect temperature and pH variations. In this regard, fluorescence based nano-sensors for cancer studies play an important role. Therefore, a facile green synthesis of orange carbon nano-dots (CND) with high quantum yield of 90% was achieved and its application as dual nano-sensor for imaging intracellular temperature and pH was explored. CND was synthesized from readily available, bio-compatible citric acid and rhodamine 6G hydrazide using solvent-free and simple heating technique requiring purification by dialysis. Although the particle size of 19 nm (which is quite large for CND) was observed yet CND exhibits no surface defects leading to decrease in photoluminescence (PL). On the contrary, very high fluorescence was observed along with good photo-stability. Temperature and pH dependent fluorescence studies show linearity in fluorescence intensity which was replicated in breast cancer cells. In addition, molecular nature of PL of CND was established using pH dependent fluorescence study. Together, the current investigation showed synthesis of highly fluorescent orange CND, which acts as a sensitive bio-imaging probe: an optical nano-thermal or nano-pH sensor for cancer-related studies.
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Affiliation(s)
- Trilochan Gadly
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - Goutam Chakraborty
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Mrityunjay Tyagi
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Birija S Patro
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Bijaideep Dutta
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Akhilesh Potnis
- Molecular Biology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Pallavi Chandwadkar
- Molecular Biology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Celin Acharya
- Molecular Biology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Shishu Kant Suman
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Archana Mukherjee
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Suman Neogy
- Material Science Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Amey Wadawale
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Srikant Sahoo
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Nitish Chauhan
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Sunil K Ghosh
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
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37
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Wen R, Li QH, Li YS, Luo YX, Zhao X, Gao XF. Synthesis optimization of rich-urea carbon-dots and application in the determination of H 2S in rich- and barren-liquids of desulphurizing solutions. Analyst 2021; 146:7635-7644. [PMID: 34797361 DOI: 10.1039/d1an01851e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In the research of carbon dots (CDs) containing various nitrogen sources, it was first found that urea/citric acid-CDs showed a selective discolouration reaction with sulphide ions. Therefore, by optimizing various synthesis and detection conditions of the CDs determining sulfur ions, such as the raw material ratio, temperature, time, pH, and oxidation atmosphere in the CD synthesis, a discolour CD-probe method for trace-level sulphide ions was developed. The method is environmentally friendly, shows two linear-response ranges in 0.050-1.0 mg L-1 (A = -0.0827c + 0.8366) and 1.0-15 mg L-1 S2- (A = -0.0209c + 0.7587) and can be used for the high and low concentration quantification of sulphide in various wastewaters. Subsequently, in order to realize the separation and detection of sulphide ions in wastewaters or rich- and barren-liquids containing N-methyldiethanolamine and other substances in desulphurizing solutions, an automatic pretreatment system was also established.
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Affiliation(s)
- Rong Wen
- School of Chemical Engineering, Sichuan University, Chengdu, China.
| | - Qiao-Hui Li
- School of Engineering, Nanjing agricultural university, Nanjing, China
| | - Yong-Sheng Li
- School of Chemical Engineering, Sichuan University, Chengdu, China.
| | - Ya-Xiong Luo
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China.
| | - Xia Zhao
- PetroChina Southwest Oil & Gasfield Company, Natural Gas Purification Plant General, Chongqing, China
| | - Xiu-Feng Gao
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China.
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38
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Zhang D, Chao D, Yu C, Zhu Q, Zhou S, Tian L, Zhou L. One-Step Green Solvothermal Synthesis of Full-Color Carbon Quantum Dots Based on a Doping Strategy. J Phys Chem Lett 2021; 12:8939-8946. [PMID: 34499514 DOI: 10.1021/acs.jpclett.1c02475] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Proposing a simple strategy for developing full-color carbon quantum dots (CQDs) and exploring how the luminescence can be tuned and improved is attractive and encouraging. Herein, blue, green, yellow-green, and orange-red CQDs doped with heteroatoms were synthesized in one pot and separated by column chromatography, with emission peaks of 435 nm, 495 nm [photoluminescence quantum yield (PLQY) of 88.9%], 525 nm, and 595 nm (full width at half-maximum of 31 nm), respectively. The abundant C-O/C-O-C electron donor groups greatly improve the PLQY of green CQDs, and the expended effective conjugated domains (particle size, doped chlorine, and conjugated nitrogen) of CQDs boost the red-shifts of emission spectra. Energy transfer (ET) in a concentrated mixed solution of CQDs was discovered, and possible ET mechanisms are proposed. Furthermore, a high-efficiency white light-emitting diode with Commission Internationale de L'Eclairage coordinates of (0.361, 0.369), a correlated color temperature of 4534 K, and a high color rendering index of 90.8 was fabricated.
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Affiliation(s)
- Danyang Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
- University of Science and Technology of China, Hefei 230027, People's Republic of China
| | - Daiyong Chao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Chunyu Yu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Qi Zhu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Shihong Zhou
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Long Tian
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Liang Zhou
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
- University of Science and Technology of China, Hefei 230027, People's Republic of China
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39
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Kaminari A, Nikoli E, Athanasopoulos A, Sakellis E, Sideratou Z, Tsiourvas D. Engineering Mitochondriotropic Carbon Dots for Targeting Cancer Cells. Pharmaceuticals (Basel) 2021; 14:ph14090932. [PMID: 34577632 PMCID: PMC8470554 DOI: 10.3390/ph14090932] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 12/14/2022] Open
Abstract
Aiming to understand and enhance the capacity of carbon dots (CDs) to transport through cell membranes and target subcellular organelles—in particular, mitochondria—a series of nitrogen-doped CDs were prepared by the one-step microwave-assisted pyrolysis of citric acid and ethylenediamine. Following optimization of the reaction conditions for maximum fluorescence, functionalization at various degrees with alkylated triphenylphosphonium functional groups of two different alkyl chain lengths afforded a series of functionalized CDs that exhibited either lysosome or mitochondria subcellular localization. Further functionalization with rhodamine B enabled enhanced fluorescence imaging capabilities in the visible spectrum and allowed the use of low quantities of CDs in relevant experiments. It was thus possible, by the appropriate selection of the alkyl chain length and degree of functionalization, to attain successful mitochondrial targeting, while preserving non-toxicity and biocompatibility. In vitro cell experiments performed on normal as well as cancer cell lines proved their non-cytotoxic character and imaging potential, even at very low concentrations, by fluorescence microscopy. Precise targeting of mitochondria is feasible with carefully designed CDs that, furthermore, are specifically internalized in cells and cell mitochondria of high transmembrane potential and thus exhibit selective uptake in malignant cells compared to normal cells.
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Affiliation(s)
- Archontia Kaminari
- National Centre for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, 15310 Aghia Paraskevi, Greece; (A.K.); (E.N.); (E.S.); (Z.S.)
| | - Eleni Nikoli
- National Centre for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, 15310 Aghia Paraskevi, Greece; (A.K.); (E.N.); (E.S.); (Z.S.)
| | - Alexandros Athanasopoulos
- National Centre for Scientific Research “Demokritos”, Institute of Biosciences and Applications, 15310 Aghia Paraskevi, Greece;
| | - Elias Sakellis
- National Centre for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, 15310 Aghia Paraskevi, Greece; (A.K.); (E.N.); (E.S.); (Z.S.)
| | - Zili Sideratou
- National Centre for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, 15310 Aghia Paraskevi, Greece; (A.K.); (E.N.); (E.S.); (Z.S.)
| | - Dimitris Tsiourvas
- National Centre for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, 15310 Aghia Paraskevi, Greece; (A.K.); (E.N.); (E.S.); (Z.S.)
- Correspondence: ; Tel.: +30-210-650-3616
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40
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Mandal S, Das P. Visible light-induced charge injection and migration in self-assembled carbon dot-DNA-carbon dot nano-dumbbell obtained through controlled stoichiometric conjugation. NANOSCALE 2021; 13:14147-14155. [PMID: 34477696 DOI: 10.1039/d1nr01689j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The potential of carbon dots (CDs) for photonic conversion to charged states, together with the ability of DNA to transport such charge for extensive charge separation, offers an opportunity to control directionality of migration for photo-induced radical cations in CD-DNA based nano-assemblies. This is achieved through engineering the reaction valency of CDs whereby one CD is covalently conjugated with one ssDNA strand. Subsequently, a CD-DNA-CD nano-dumbbell architecture was created through hybridization mediated self-assembly. The time and intensity-dependent transduction of visible light photonic energy to chemical potential in DNA was achieved through irradiation of 1,4-diaminoathraquinone and glyoxal derived CD with 100 W tungsten source and natural sunlight. Following charge injection by CD, the radical cation migration in DNA was perceived through trapping of the hole in repeated GG steps in the DNA. Overall, a breakthrough in visible-light-induced charge transfer by CD into DNA was achieved, potentially applicable to optobioelectronics.
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Affiliation(s)
- Saptarshi Mandal
- Department of Chemistry, Indian Institute of Technology Patna, Bihar 801106, India.
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41
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Patir K, Barman B, Basumatary S. One Pot Synthesis of Multicolor Emissive Nitrogen Doped Carbon Dots and its Application as Acetone and Picric Acid Sensor. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY, TRANSACTIONS A: SCIENCE 2021. [DOI: 10.1007/s40995-021-01131-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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42
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Zhu P, Li J, Gao L, Xiong J, Tan K. Strategy to Synthesize Tunable Multiemission Carbon Dots and Their Multicolor Visualization Application. ACS APPLIED MATERIALS & INTERFACES 2021; 13:33354-33362. [PMID: 34250799 DOI: 10.1021/acsami.1c07260] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Studies on multiemission fluorescent carbon dots (CDs) excited at one wavelength are extremely promising because of their label-free property, facile synthesis, multicolor visualization, and prevention of background interference. In this study, a novel template strategy to develop multiemission carbon dots (M-CDs) using fluorescent precursors has emerged. We attempted to elucidate the relationship between precursor substances and luminescence origins. The M-CDs prepared by calcein demonstrate three emissions, ultraviolet (UV), blue, and green, which are attributed to the solvent, surface defect, and precursor aromatic ring luminophores, respectively. Also, through a regular adjustment of the amount of NaOH or the solvothermal synthesis time, the expected optical requirements were successfully met by the M-CDs, which is a better capability than that of previously reported M-CDs. In addition, a multicolor sensor designed with M-CDs and rhodamine B (RhB) has been successfully applied in cell imaging. When exposed to different pH media, the fluorescence (FL) emission shows a linear relationship with the pH value, displaying a profuse color evolution from dark blue to light blue, cyan, green, yellow, and finally, orange.
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Affiliation(s)
- Panpan Zhu
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Jiayu Li
- Chongqing Key Laboratory of Translational Medicine in Major Metabolic Disease, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P. R. China
| | - Lixia Gao
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Jie Xiong
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Kejun Tan
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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43
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Kompany-Zareh M, Bagheri S. Perception on aggregation induced multicolor emission and emission centers in carbon nanodots using successive dilution, anion exchange chromatography, and multi-way statistics. Sci Rep 2021; 11:13996. [PMID: 34234191 PMCID: PMC8263574 DOI: 10.1038/s41598-021-93212-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/04/2021] [Indexed: 11/22/2022] Open
Abstract
Exploration in the way of understanding the optical behavior and structure of carbon nanodots has been increased due to their vast application. Their emission dependency on excitation wavelengths is the more prevalent and controversial subject. In this report we considered the optical structure of hydrothermally synthesized carbon nanodots using citric acid and 2,3-diaminopyridine as precursors. The presence of different emission centers experimented through anion exchange chromatography which resulted in fractions with more unique optical structures. The quantum confinement effect and energy exchange between different types of carbon nanodots, due to aggregation in higher concentration levels, was studied applying a stepwise dilution experiment. Analysis of the experimental data was done through the parallel factor analysis and the trajectory pattern recognition which resolved more about optical interactions and the presence of different emission centers in different particles. Results from infrared spectroscopy confirmed the dominating density of carboxyl functional groups on the nanodots with negative surface charges and higher influence of amine groups on dots with positive surface charges.
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Affiliation(s)
- Mohsen Kompany-Zareh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences, 45137-66731, Zanjan, Iran. .,Trace Analysis Research Centre, Department of Chemistry, Dalhousie University, P.O. Box 15000, Halifax, NS, B3H 4R2, Canada.
| | - Saeed Bagheri
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences, 45137-66731, Zanjan, Iran
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44
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Uriarte D, Vidal E, Canals A, Domini CE, Garrido M. Simple-to-use and portable device for free chlorine determination based on microwave-assisted synthesized carbon dots and smartphone images. Talanta 2021; 229:122298. [PMID: 33838783 DOI: 10.1016/j.talanta.2021.122298] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/04/2021] [Accepted: 03/05/2021] [Indexed: 12/26/2022]
Abstract
A new portable and simple 3D printed device was designed for free chlorine determination in water samples. The analytical method was based on the quenching caused by free chlorine on the fluorescence emission of the carbon dots (CD) synthesized from citric acid and urea. The fluorescence was captured through the camera of a smartphone, which was coupled to the 3D printed device, and the images were processed using the RGB system by the ImageJ 1.51q software. The proposed method was selective and precise (RSD% 4.6, for n = 6), and the trueness of the results was evaluated by comparing the results obtained with those recovered by the spectrophotometric method 4500-Cl G (standard method), with good agreement between them. Moreover, the remarkable correlation between the CD signal and the free chlorine concentration resulted in a determination with low detection limits (limit of detection of 6 μg L-1 and limit of quantification of 20 μg L-1). Therefore, the new method and the related portable device could be considered a fast, economical and reliable alternative for the on-site determination of free chlorine in water samples.
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Affiliation(s)
- D Uriarte
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina
| | - E Vidal
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina
| | - A Canals
- Departamento de Química Analítica, Nutrición y Bromatología, Instituto Universitario de Materiales, Universidad de Alicante, Apdo. 99, 03080, Alicante, Spain
| | - C E Domini
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina.
| | - M Garrido
- INQUISUR, Departamento de Química, Universidad Nacional Del Sur (UNS)-CONICET, Av. Alem 1253, 8000, Bahía Blanca, Argentina.
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45
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He Q, Zhuang S, Yu Y, Li H, Liu Y. Ratiometric dual-emission of Rhodamine-B grafted carbon dots for full-range solvent components detection. Anal Chim Acta 2021; 1174:338743. [PMID: 34247738 DOI: 10.1016/j.aca.2021.338743] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/06/2021] [Indexed: 01/08/2023]
Abstract
Quick and visual detection of component contents, such as water, in a mixed solvent is important for many practical applications, and a full range detection is especially preferred. In this work, a carbon dots based ratiometric fluorescent sensor was synthesized by grafting fluorescent group (Rhodamine B, RhB) on carbon dots, and the dual emission peaks exhibited a linear ratiometric response with the change of polarity and hydrogen bond of Solvent Hansen solubility parameters. This responsive behavior is attributed to surface state photoluminescence mechanisms, and has been used for the quantitative detection of water content in ethanol with an excellent linear relationship (R2 = 0.996), a low detection limit (0.2%), and a full detection range (0-100%). Furthermore, a paper-based ratiometric fluorescence sensing strip is also demonstrated, which exhibits good storage stability and sensitivity. This study suggests that RhB grafted carbon dots could be feasibly and effectively used as ratiometric fluorescent sensors for solvent content detection.
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Affiliation(s)
- Qian He
- Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan, 030001, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Shengyi Zhuang
- Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan, 030001, China
| | - Yuxiu Yu
- Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan, 030001, China
| | - Haojie Li
- Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan, 030001, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Yaodong Liu
- Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan, 030001, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
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46
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Rigodanza F, Burian M, Arcudi F, Đorđević L, Amenitsch H, Prato M. Snapshots into carbon dots formation through a combined spectroscopic approach. Nat Commun 2021; 12:2640. [PMID: 33976167 PMCID: PMC8113590 DOI: 10.1038/s41467-021-22902-w] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 03/29/2021] [Indexed: 02/07/2023] Open
Abstract
The design of novel carbon dots with ad hoc properties requires a comprehensive understanding of their formation mechanism, which is a complex task considering the number of variables involved, such as reaction time, structure of precursors or synthetic protocol employed. Herein, we systematically investigated the formation of carbon nanodots by tracking structural, chemical and photophysical features during the hydrothermal synthesis. We demonstrate that the formation of carbon nanodots consists of 4 consecutive steps: (i) aggregation of small organic molecules, (ii) formation of a dense core with an extended shell, (iii) collapse of the shell and (iv) aromatization of the core. In addition, we provide examples of routes towards tuning the core-shell design, synthesizing five novel carbon dots that all consist of an electron-dense core covered by an amine rich ligand shell.
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Affiliation(s)
- Francesco Rigodanza
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127, Trieste, Italy
- Department of Chemistry, University of Padova, 35151, Padova, Italy
| | - Max Burian
- Institute of Inorganic Chemistry, Graz University of Technology, Graz, 8010, Austria
- Paul Scherrer Institute, 5232, Villigen, Switzerland
| | - Francesca Arcudi
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127, Trieste, Italy
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Luka Đorđević
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127, Trieste, Italy
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA
| | - Heinz Amenitsch
- Institute of Inorganic Chemistry, Graz University of Technology, Graz, 8010, Austria.
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127, Trieste, Italy.
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), 20014, Donostia San Sebastián, Spain.
- Basque Foundation for Science, Ikerbasque, 48013, Bilbao, Spain.
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Kaczmarek A, Denis P, Krajewski M, Mościcki T, Małolepszy A, Hoffman J. Improved Laser Ablation Method for the Production of Luminescent Carbon Particles in Liquids. MATERIALS 2021; 14:ma14092365. [PMID: 34062888 PMCID: PMC8124434 DOI: 10.3390/ma14092365] [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: 03/22/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 11/16/2022]
Abstract
An improved method for the production of luminescent carbon nanoparticles is proposed in this work. The new method overcomes the disadvantages of commonly used approaches. It involves two-stage laser ablation in water and in aqueous solutions, where the first stage is the laser ablation of a graphite target and the second is the shredding of particles produced in the first step. The two-stage method offers the optimization of the laser pulse fluence for the performance of each process. It was found that the two-stage process of laser ablation allows producing photoluminescent carbon structures in pure water. The additional reagent may be added either in the first or second stage. The first stage performed in pure water allows avoiding the contamination of the target. Moreover, it simplifies the identification of the origin of photoluminescence. Two synthesis routes for the preparation of carbon nanoparticles by the proposed method using pure water as well as urea aqueous solution are investigated. It was found that the use of urea as a reagent results in luminescence properties similar to those obtained with other more hazardous amine-based reagents. The influence of the synthesis approach and process parameters on the structural and luminescent properties of nanoparticles is also explored in this work.
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Affiliation(s)
- Agata Kaczmarek
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland; (P.D.); (M.K.); (T.M.); (J.H.)
- Correspondence:
| | - Piotr Denis
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland; (P.D.); (M.K.); (T.M.); (J.H.)
| | - Marcin Krajewski
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland; (P.D.); (M.K.); (T.M.); (J.H.)
| | - Tomasz Mościcki
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland; (P.D.); (M.K.); (T.M.); (J.H.)
| | - Artur Małolepszy
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland;
| | - Jacek Hoffman
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland; (P.D.); (M.K.); (T.M.); (J.H.)
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48
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Speranza G. Carbon Nanomaterials: Synthesis, Functionalization and Sensing Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:967. [PMID: 33918769 PMCID: PMC8069879 DOI: 10.3390/nano11040967] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 02/07/2023]
Abstract
Recent advances in nanomaterial design and synthesis has resulted in robust sensing systems that display superior analytical performance. The use of nanomaterials within sensors has accelerated new routes and opportunities for the detection of analytes or target molecules. Among others, carbon-based sensors have reported biocompatibility, better sensitivity, better selectivity and lower limits of detection to reveal a wide range of organic and inorganic molecules. Carbon nanomaterials are among the most extensively studied materials because of their unique properties spanning from the high specific surface area, high carrier mobility, high electrical conductivity, flexibility, and optical transparency fostering their use in sensing applications. In this paper, a comprehensive review has been made to cover recent developments in the field of carbon-based nanomaterials for sensing applications. The review describes nanomaterials like fullerenes, carbon onions, carbon quantum dots, nanodiamonds, carbon nanotubes, and graphene. Synthesis of these nanostructures has been discussed along with their functionalization methods. The recent application of all these nanomaterials in sensing applications has been highlighted for the principal applicative field and the future prospects and possibilities have been outlined.
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Affiliation(s)
- Giorgio Speranza
- CMM—FBK, v. Sommarive 18, 38123 Trento, Italy;
- IFN—CNR, CSMFO Lab., via alla Cascata 56/C Povo, 38123 Trento, Italy
- Department of Industrial Engineering, University of Trento, v. Sommarive 9, 38123 Trento, Italy
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Bai J, Yuan G, Huang Z, Zhang L, Zhu Y, Wang X, Ren L. Regulation of fluorescence emission of carbon dots via hydrogen bonding assembly. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108500] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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50
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Mocci F, Olla C, Cappai A, Corpino R, Ricci PC, Chiriu D, Salis M, Carbonaro CM. Formation of Citrazinic Acid Ions and Their Contribution to Optical and Magnetic Features of Carbon Nanodots: A Combined Experimental and Computational Approach. MATERIALS (BASEL, SWITZERLAND) 2021; 14:770. [PMID: 33562081 PMCID: PMC7914458 DOI: 10.3390/ma14040770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/21/2021] [Accepted: 02/02/2021] [Indexed: 01/12/2023]
Abstract
The molecular model is one of the most appealing to explain the peculiar optical properties of Carbon nanodots (CNDs) and was proven to be successful for the bottom up synthesis, where a few molecules were recognized. Among the others, citrazinic acid is relevant for the synthesis of citric acid-based CNDs. Here we report a combined experimental and computational approach to discuss the formation of different protonated and deprotonated species of citrazinic acid and their contribution to vibrational and magnetic spectra. By computing the free energy formation in water solution, we selected the most favoured species and we retrieved their presence in the experimental surface enhanced Raman spectra. As well, the chemical shifts are discussed in terms of tautomers and rotamers of most favoured species. The expected formation of protonated and de-protonated citrazinic acid ions under extreme pH conditions was proven by evaluating specific interactions with H2SO4 and NaOH molecules. The reported results confirm that the presence of citrazinic acid and its ionic forms should be considered in the interpretation of the spectroscopic features of CNDs.
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Affiliation(s)
- Francesca Mocci
- Department of Chemistry and Geological Science, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy;
| | - Chiara Olla
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy; (C.O.); (A.C.); (R.C.); (P.C.R.); (D.C.); (M.S.)
| | - Antonio Cappai
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy; (C.O.); (A.C.); (R.C.); (P.C.R.); (D.C.); (M.S.)
| | - Riccardo Corpino
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy; (C.O.); (A.C.); (R.C.); (P.C.R.); (D.C.); (M.S.)
| | - Pier Carlo Ricci
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy; (C.O.); (A.C.); (R.C.); (P.C.R.); (D.C.); (M.S.)
| | - Daniele Chiriu
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy; (C.O.); (A.C.); (R.C.); (P.C.R.); (D.C.); (M.S.)
| | - Marcello Salis
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy; (C.O.); (A.C.); (R.C.); (P.C.R.); (D.C.); (M.S.)
| | - Carlo Maria Carbonaro
- Department of Physics, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato, Italy; (C.O.); (A.C.); (R.C.); (P.C.R.); (D.C.); (M.S.)
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