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Liu L, Chen M, Zhao T, Yuan L, Mi Z, Bai Y, Fei P, Liu Z, Li C, Wang L, Feng F. Ratiometric fluorescence and smartphone-assisted sensing platform based on dual-emission carbon dots for brilliant blue detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 322:124782. [PMID: 38991616 DOI: 10.1016/j.saa.2024.124782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/25/2024] [Accepted: 07/03/2024] [Indexed: 07/13/2024]
Abstract
In this study, an innovative ratiometric fluorescence and smartphone-assisted visual sensing platform based on blue-yellow dual-emission carbon dots (BY-CDs) was constructed for the first time to determine brilliant blue. The BY-CDs was synthesized via a facile one-step hydrothermal process involving propyl gallate and o-phenylenediamine. The synthesized BY-CDs exhibit favorable water solubility and exceptional fluorescence stability. Under excitation at 370 nm, BY-CDs show two distinguishable fluorescence emission bands (458 and 558 nm). Upon addition of brilliant blue, the fluorescence intensity at 558 nm exhibited a significant quenching effect attributed to fluorescence resonance energy transfer (FRET), while the fluorescence intensity at 458 nm was basically unchanged. The prepared BY-CDs can effectively serve as a ratiometric nanosensor for determining brilliant blue with the ratio of fluorescence intensities at 458 and 558 nm (F458/F558) as response signal. In addition, the developed ratiometric fluorescence sensor exhibits a noticeable alteration in color from yellow to green under UV light with a wavelength of 365 nm upon addition of varying concentrations of brilliant blue, which provides the possibility of visual detection of brilliant blue by a smartphone application. Finally, the BY-CDs based dual-mode sensing platform successfully detected brilliant blue in actual food samples and achieved a desirable recovery rate. This study highlights the merits of fast, convenient, economical, real-time, visual, high accuracy, excellent precision, good selectivity and high sensitivity for brilliant blue detection, and paves new paths for the monitoring of brilliant blue in real samples.
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Affiliation(s)
- Lizhen Liu
- Shanxi Datong University, Datong 037009, PR China
| | - Meng Chen
- Shanxi Datong University, Datong 037009, PR China
| | - Ting Zhao
- Shanxi Datong University, Datong 037009, PR China
| | - Lin Yuan
- Shanxi Normal University, Taiyuan 030032, PR China
| | - Zhi Mi
- Shanxi Datong University, Datong 037009, PR China.
| | - Yunfeng Bai
- Shanxi Datong University, Datong 037009, PR China
| | - Peng Fei
- Shanxi Datong University, Datong 037009, PR China
| | - Zhixiong Liu
- Shanxi Datong University, Datong 037009, PR China
| | - Caiqing Li
- Shanxi Datong University, Datong 037009, PR China
| | - Ligang Wang
- Shanxi Datong University, Datong 037009, PR China
| | - Feng Feng
- Shanxi Datong University, Datong 037009, PR China; Shanxi Normal University, Taiyuan 030032, PR China.
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Yuan L, Liu L, Mi Z, Chen M, Bai Y, Qin J, Feng F. A ratiometric sensor based on dual-emission carbon dots sensitive detection of amaranth. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:123058. [PMID: 37393669 DOI: 10.1016/j.saa.2023.123058] [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: 03/08/2023] [Revised: 06/17/2023] [Accepted: 06/19/2023] [Indexed: 07/04/2023]
Abstract
Amaranth (AMA), a common food additive, is important to strictly control the content of food for the human body. In this paper, an innovative method based on intrinsic dual-emissive carbon dots (Y/B-CDs) was used to detect AMA. Y/B-CDs have two emission wavelengths at 416 and 544 nm with the excitation wavelength at 362 nm. The addition of AMA can rapidly quench the fluorescence of the two peaks with different degrees, and ratiometric detection can be achieved. Quantitative analysis showed two linear ranges of 0.1-20 μM and 20-80 μM, and detection limits are 42 and 33 nM, respectively. Moreover, good results were obtained for the detection of AMA in beverages and candy using Y/B-CDs. This suggests that the constructed sensor has the potential to detect AMA in real samples.
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Affiliation(s)
- Lin Yuan
- School of Chemistry and Chemical Engineering, Shanxi Provincial Key Laboratory of Chemical Biosensing, Shanxi Datong University, Datong 037009, PR China
| | - Lizhen Liu
- School of Chemistry and Chemical Engineering, Shanxi Provincial Key Laboratory of Chemical Biosensing, Shanxi Datong University, Datong 037009, PR China.
| | - Zhi Mi
- School of Chemistry and Chemical Engineering, Shanxi Provincial Key Laboratory of Chemical Biosensing, Shanxi Datong University, Datong 037009, PR China
| | - Meng Chen
- School of Chemistry and Chemical Engineering, Shanxi Provincial Key Laboratory of Chemical Biosensing, Shanxi Datong University, Datong 037009, PR China
| | - Yunfeng Bai
- School of Chemistry and Chemical Engineering, Shanxi Provincial Key Laboratory of Chemical Biosensing, Shanxi Datong University, Datong 037009, PR China
| | - Jun Qin
- School of Chemistry and Chemical Engineering, Shanxi Provincial Key Laboratory of Chemical Biosensing, Shanxi Datong University, Datong 037009, PR China
| | - Feng Feng
- School of Chemistry and Chemical Engineering, Shanxi Provincial Key Laboratory of Chemical Biosensing, Shanxi Datong University, Datong 037009, PR China; School Department of Energy Chemistry and Materials Engineering, Shanxi Institute of Energy, Taiyuan 030600, PR China.
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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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Wu X, Xu M, Wang S, Abbas K, Huang X, Zhang R, Tedesco AC, Bi H. F,N-Doped carbon dots as efficient Type I photosensitizers for photodynamic therapy. Dalton Trans 2022; 51:2296-2303. [PMID: 35040834 DOI: 10.1039/d1dt03788a] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Photodynamic therapy (PDT) is a promising and emerging method for the treatment of cancer. Usually, Type II PDT is used in the clinic, and mainly involves three key elements: a photosensitizer, molecular oxygen and laser light. However, it is known that tumor tissue is deficient in oxygen molecules which is why Type I PDT is mostly preferred in the therapy of tumors in which the hypoxic tissue plays a major role. Fluorescent carbon dots (CDs) have shown great potential in cancer theranostics, acting as bioimaging agents and photosensitizers. Herein, we have synthesized novel kinds of fluorine and nitrogen co-doped carbon dots (F,NCDs) that emit bright green fluorescence under ultra-violet light. The F,NCDs have excellent water solubility and low cytotoxicity. They can generate hydroxyl radicals (˙OH) and superoxide anions (˙O2-) under LED light (400-500 nm, 15 mW cm-2) irradiation, making them ideal photosensitizers for Type I PDT. Furthermore, upon using the HepG2 cell line as an in vitro model, the F,NCDs exhibit a better cell imaging effect and higher PDT efficiency than the control sample of CDs without F and N doping. This work has illustrated that the F,NCDs are promising in achieving the image-guided PDT of cancers, usually in a hypoxia tumor microenvironment.
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Affiliation(s)
- Xiaoyan Wu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China.
| | - Mingsheng Xu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China.
| | - Shuna Wang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China.
| | - Khurram Abbas
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China.
| | - Xin Huang
- Department of Thoracic Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Renquan Zhang
- Department of Thoracic Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Antonio Claudio Tedesco
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China.
- Department of Chemistry, Center of Nanotechnology and Tissue Engineering-Photobiology and Photomedicine Research Group, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo 14040-901, Brazil
| | - Hong Bi
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China.
- School of Materials Science and Engineering, Anhui University, Hefei 230601, China
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Kaschuk JJ, Al Haj Y, Rojas OJ, Miettunen K, Abitbol T, Vapaavuori J. Plant-Based Structures as an Opportunity to Engineer Optical Functions in Next-Generation Light Management. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2104473. [PMID: 34699648 DOI: 10.1002/adma.202104473] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/13/2021] [Indexed: 06/13/2023]
Abstract
This review addresses the reconstruction of structural plant components (cellulose, lignin, and hemicelluloses) into materials displaying advanced optical properties. The strategies to isolate the main building blocks are discussed, and the effects of fibrillation, fibril alignment, densification, self-assembly, surface-patterning, and compositing are presented considering their role in engineering optical performance. Then, key elements that enable lignocellulosic to be translated into materials that present optical functionality, such as transparency, haze, reflectance, UV-blocking, luminescence, and structural colors, are described. Mapping the optical landscape that is accessible from lignocellulosics is shown as an essential step toward their utilization in smart devices. Advanced materials built from sustainable resources, including those obtained from industrial or agricultural side streams, demonstrate enormous promise in optoelectronics due to their potentially lower cost, while meeting or even exceeding current demands in performance. The requirements are summarized for the production and application of plant-based optically functional materials in different smart material applications and the review is concluded with a perspective about this active field of knowledge.
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Affiliation(s)
- Joice Jaqueline Kaschuk
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Box 16300, Aalto, Espoo, 00076, Finland
| | - Yazan Al Haj
- Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Aalto, FI-00076, Finland
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Box 16300, Aalto, Espoo, 00076, Finland
- Bioproducts Institute, Departments of Chemical Engineering, Department of Biological Engineering, Department of Chemistry, Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Kati Miettunen
- Department of Mechanical and Materials Engineering, Faculty of Technology, University of Turku, Turku, FI-20500, Finland
| | - Tiffany Abitbol
- RISE Research Institutes of Sweden, Stockholm, SE-114 28, Sweden
| | - Jaana Vapaavuori
- Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Aalto, FI-00076, Finland
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Qu Y, Bai X, Li D, Zhang X, Liang C, Zheng W, Qu S. Solution-processable carbon dots with efficient solid-state red/near-infrared emission. J Colloid Interface Sci 2022; 613:547-553. [PMID: 35063786 DOI: 10.1016/j.jcis.2021.12.192] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/04/2021] [Accepted: 12/31/2021] [Indexed: 11/28/2022]
Abstract
Carbon dots (CDs) emerge as promising luminescent materials for potential applications in optoelectronics on basis of their merits including low cost, eco-friendliness and strong, color-tunable photoluminescence (PL). However, the research on solid-state emissive CDs is still at the primary stage because of the aggregation-caused quenching (ACQ) of PL and their poor film-formation ability. In this work, we produce CDs with branched-polyethylenimine (b-PEI) chemically functionalized on the surfaces. The thus newly synthesized P-CDs successfully overcome the bottleneck of ACQ effect and display efficient red and NIR emission in aggregate state. Under the excitation of 520 nm, a strong red emission (maxima of 640 nm) with a high photoluminescence quantum yield (PLQY) of 21% was observed for the P-CDs in neat film. Moreover, this design strategy endows the P-CDs with good film-formation ability via solution spin-coating, which significantly increases its value for the film-based optoelectronic devices.
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Affiliation(s)
- Yanfei Qu
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Xuewei Bai
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Di Li
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China.
| | - Xiaoyu Zhang
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Chao Liang
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa 999078, Macau
| | - Weitao Zheng
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China.
| | - Songnan Qu
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa 999078, Macau.
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Han S, Dai R, Hu Y, Han L. Fluorometric and colorimetric detection of cerium(IV) ion using carbon dots and bathophenanthroline-disulfonate-ferrum(II) complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 264:120295. [PMID: 34450572 DOI: 10.1016/j.saa.2021.120295] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 08/09/2021] [Accepted: 08/14/2021] [Indexed: 06/13/2023]
Abstract
Cerium, an abundant lanthanide element, is widely used in human industry. The accumulation of Ce4+ ion, however, will damage the environment and biological organism. Therefore, its facile detection is highly needed. Herein, we design a hybrid sensing platform consisting of carbon dots (C-dots) and bathophenanthroline-disulfonate-Fe2+ complex (Bphen-Fe2+) for trace-level determination of Ce4+. Based on inner filter effect (IFE), the red-colored Bphen-Fe2+ complex severely quenches the fluorescence of C-dots. After addition of Ce4+, Fe2+ is oxidized to Fe3+, and the colorless Bphen-Fe3+ complex generates, which weakens the IFE efficiency and leads to the fluorescence recovery of C-dots. Meanwhile, due to the decreasing amount of Bphen-Fe2+ upon Ce4+ addition, the red color of the solution gradually fades, which enables visual detection of Ce4+ by the naked eyes. Under the optimized conditions, the C-dots/Bphen-Fe2+ system realizes the fluorometric and colorimetric sensing of Ce4+ in the range of 0.5-100 and 1.9-80 μM, with the limits of detection as low as 0.5 and 1.9 μM, respectively. This method also shows high selectivity over other common ions, and has an excellent applicability for monitoring of Ce4+ in real water samples.
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Affiliation(s)
- Sujie Han
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Ruoyu Dai
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, 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.
| | - Lei Han
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
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Zhang X, Tan X, Hu Y. Blue/yellow emissive carbon dots coupled with curcumin: a hybrid sensor toward fluorescence turn-on detection of fluoride ion. JOURNAL OF HAZARDOUS MATERIALS 2021; 411:125184. [PMID: 33858118 DOI: 10.1016/j.jhazmat.2021.125184] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 01/09/2021] [Accepted: 01/17/2021] [Indexed: 06/12/2023]
Abstract
Trace detection of fluoride ion has gained increasing attention due to fluoride's close association with biological and environmental processes. Herein, we construct a novel hybrid nanosystem consisting of carbon dots and curcumin for sensitive and selective sensing of F-. Carbon dots are synthesized by hydrothermal treatment of 2,3-diaminopyridine and selenourea in hydrochloric acid. This material is employed as the fluorescent indicator that exhibits intense blue and yellow emission with quantum yields of 12% and 33%, respectively. Curcumin, possessing an absorption peak at 532 nm, can significantly quench the yellow fluorescence of carbon dots through inner filter effect. Curcumin is also used to specifically recognize F-. When F- is added, the curcumin-F- complex generates, which leads to the hypochromatic shift of the absorption band from 532 to 430 nm. In such a case, the inner filter effect reduces, and yellow fluorescence of carbon dots recovers. Thus, a fluorescence turn-on sensor of F- is built based on the carbon dots/curcumin system. The limits of detection and quantitation are measured to be 0.39 and 1.30 μM, respectively. For real usage, the proposed method is applied to determinate F- in tap water and milk samples with relative standard deviations below 7.9%.
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Affiliation(s)
- Xiang Zhang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Xiaoyan Tan
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, 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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