1
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Liu F, Zhu C, Wang Y, Zhang Y. Nitrogen and Chlorine Co-doped Carbon Dots as a Highly Selective and Sensitive Fluorescent Probe for Sensing of PH, Tetracycline Detection and Cell Imaging. J Fluoresc 2024; 34:1183-1192. [PMID: 37498365 DOI: 10.1007/s10895-023-03360-7] [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: 06/01/2023] [Accepted: 07/18/2023] [Indexed: 07/28/2023]
Abstract
Carbon dots have been widely focused on the field of sensing and detection due to their excellent optical property. Herein, novel orange fluorescent nitrogen and chlorine co-doped carbon dots (N,Cl-CDs) are obtained by one-pot hydrothermal method using o-phenylenediamine and neutral red. Based on the inner filter effect, the prepared N,Cl-CDs can be innovatively developed as an effective "signal-off" multifunctional sensing platform for sensitive determination of tetracycline. The proposed sensor was utilized to realize the determination of tetracycline in Rirver water samples/milk samples (λex = 390 nm, λem = 606 nm) with satisfactory recoveries and relative standard deviations. The linear range of are 0.05 to 45 μM and 45 to135 μM, and detection limit is 3.9 nM (3σ/m). Meanwhile, the luminescent intensity of N,Cl-CDs was reduced gradually when pH changed continuously from 12 to 2, showing a pH-responsive fluorescence property with two linear ranges of pH 3-7 and pH 7-10. In addition, due to the characteristics of low toxicity and excellent biocompatibility, the N, Cl-CDs were also used in the imaging of oocystis cells, which is hopeful to realize the detection of tetracycline in living cells.
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Affiliation(s)
- Fang Liu
- Department of Modern Chemical Engineering, Shanxi Engineering Vocational College, Taiyuan, 030009, Shanxi, China
| | - Changjian Zhu
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, Shanxi, China
| | - Yingte Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, Shanxi, China
| | - Yong Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, Shanxi, China.
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2
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Wang H, Yang S, Chen L, Li Y, He P, Wang G, Dong H, Ma P, Ding G. Tumor diagnosis using carbon-based quantum dots: Detection based on the hallmarks of cancer. Bioact Mater 2024; 33:174-222. [PMID: 38034499 PMCID: PMC10684566 DOI: 10.1016/j.bioactmat.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/15/2023] [Accepted: 10/05/2023] [Indexed: 12/02/2023] Open
Abstract
Carbon-based quantum dots (CQDs) have been shown to have promising application value in tumor diagnosis. Their use, however, is severely hindered by the complicated nature of the nanostructures in the CQDs. Furthermore, it seems impossible to formulate the mechanisms involved using the inadequate theoretical frameworks that are currently available for CQDs. In this review, we re-consider the structure-property relationships of CQDs and summarize the current state of development of CQDs-based tumor diagnosis based on biological theories that are fully developed. The advantages and deficiencies of recent research on CQDs-based tumor diagnosis are thus explained in terms of the manifestation of nine essential changes in cell physiology. This review makes significant progress in addressing related problems encountered with other nanomaterials.
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Affiliation(s)
- Hang Wang
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- CAS Center for Excellence in Superconducting Electronics (CENSE), Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Siwei Yang
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Liangfeng Chen
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Yongqiang Li
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Peng He
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Gang Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, PR China
| | - Hui Dong
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- CAS Center for Excellence in Superconducting Electronics (CENSE), Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Peixiang Ma
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Guqiao Ding
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
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3
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Nugroho D, Wannakan K, Nanan S, Benchawattananon R. The Synthesis of carbon dots//zincoxide (CDs/ZnO-H400) by using hydrothermal methods for degradation of ofloxacin antibiotics and reactive red azo dye (RR141). Sci Rep 2024; 14:2455. [PMID: 38291079 PMCID: PMC10828376 DOI: 10.1038/s41598-024-53083-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/27/2024] [Indexed: 02/01/2024] Open
Abstract
The development of photocatalytic powders to remove contaminants from air solutions is an important field of research in the field of environmental conservation. CD/ZnO-H400, a heterogeneous photocatalytic production, is utilized to degrade the reactive red dye and the antibiotic ofloxacin found in wastewater. This study explains the synthesis of carbon dots (CDs) derived from coconut air and zinc oxide (ZnO) using a hydrothermal method at a temperature of 180 °C with a duration of 4 h and subsequently calcinated at a 400 °C temperature for 4 h. This shows a significant improvement in photocatalytic performance due to improved delivery efficiency at the interface. The cost-efficient use of solar energy allows the comprehensive elimination of harmful pollutants through detoxification. The removal of the contaminant takes place through the first-order reaction, with RR141 showing the highest constant rate at 0.03 min-1, while ofloxacin has a constant speed at 0.01 min-1. The photocatalytic stability is measured after five cycles. The study also tested the impact of sunlight on degradation, showing a degrading rate of 98% for RR141 and 96% for ofloxacin. This study displays a new catalyst powder synthesized from carbon dots derived from the air, coconut and ZnO, showing remarkable photoactivity to completely remove harmful dyes and antibiotics from the surrounding environment.
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Affiliation(s)
- David Nugroho
- Department of Integrated Science, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Khemika Wannakan
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Suwat Nanan
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.
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4
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Deng Y, Huang S, Li J, Zhou Y, Qian J. Yellow Carbon Dots for Fluorescent Water Sensing, Relative Humidity Sensing, and Anticounterfeiting Applications. J Fluoresc 2023; 33:2273-2280. [PMID: 37017894 DOI: 10.1007/s10895-023-03214-2] [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: 02/03/2023] [Accepted: 03/16/2023] [Indexed: 04/06/2023]
Abstract
Most fluorescent probes based on carbon dots (CDs) fluorescence color or intensity change are still used for detection in solution, but in practical fluorescence detection applications, detection in the solid state is necessary. Therefore, a CDs-based fluorescence sensing device is designed in this paper, which can be used for water detection in liquid and solid states. Using oPD as a single precursor, yellow fluorescent CDs (y-CDs) were prepared by hydrothermal method, which can be used in the field of water detection and anti-counterfeiting by using its solvent-sensitive properties. First, y-CDs can be used to visually and intelligently detect the water content in ethanol. Secondly, it can be used to detect the Relative Humidity (RH) of the environment by combining it with cellulose to form a fluorescent film. Finally, y-CDs can also be used as a fluorescent material for fluorescence anti-counterfeiting.
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Affiliation(s)
- Yafeng Deng
- School of Electronics and Information Engineering, Jingchu University of Technology, Jingmen, 448000, Hubei, China
| | - Shaoyun Huang
- School of Electronics and Information Engineering, Jingchu University of Technology, Jingmen, 448000, Hubei, China
| | - Jinli Li
- School of Electronics and Information Engineering, Jingchu University of Technology, Jingmen, 448000, Hubei, China
| | - Yihua Zhou
- Research Center of Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430079, Hubei, China
| | - Jun Qian
- Research Center of Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430079, Hubei, China.
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Meng Y, Liu Y, Guo Q, Xu H, Jiao Y, Yang Z, Shuang S, Dong C. Strategy to synthesize dual-emission carbon dots and their application for pH variation and hydrogen sulfide sensing and bioimaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 293:122483. [PMID: 36812757 DOI: 10.1016/j.saa.2023.122483] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 01/29/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
In this work, dual emission nitrogen and sulfur co-doped fluorescent carbon dots (DE-CDs) were designed for pH variation and hydrogen sulfide (H2S) sensing and bioimaging through fluorescence enhancement. The DE-CDs with green-orange emission were facilely prepared by one-pot hydrothermal strategy using neutral red and sodium 1,4-dinitrobenzene sulfonate as precursors, manifesting intriguing dual-emission behavior at 502 and 562 nm. As the pH increases from 2.0 to 10.2, the fluorescence of DE-CDs gradually increases. The linear ranges are 2.0-3.0 and 5.4-9.6, respectively, which are attributed to the abundant amino groups on the surface of the DE-CDs. Meanwhile, H2S can be employed as an enhancer to increase the fluorescence of DE-CDs. The linear range is 25-500 μM, and the LOD is calculated to be 9.7 μM. Besides, the DE-CDs can be used as imaging agents for pH variation and H2S sensing in living cells and zebrafish due to their low toxicity and good biocompatibility. All of the results demonstrated that the DE-CDs can monitor pH fluctuations and H2S in aqueous and biological environments, and have promising applications in the fields of fluorescence sensing, disease detection, and bioimaging.
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Affiliation(s)
- Yating Meng
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Yang Liu
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Qiaozhi Guo
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Hongmei Xu
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Yuan Jiao
- College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, China
| | - Zhenhua Yang
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Shaomin Shuang
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Chuan Dong
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
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6
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Hou Y, Lin J, Chen Y, He J, Su Z, Zheng Q, Zhao X, Lv X, Tang X, Zhou C. Flammulina velutipes-derived carbon dots for fluorescence detection and imaging of hydroxyl radical. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 291:122304. [PMID: 36630809 DOI: 10.1016/j.saa.2022.122304] [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: 10/07/2022] [Revised: 12/26/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Monitoring hydroxyl radical (•OH) fluctuation is of great importance to study some relative pathological processes and to predict early diagnosis of diseases. Efficient •OH-responsive fluorescent sensors based on carbon dots (CDs) have been reported, but most researches have focused on the new strategies for the synthesis and doping of the CDs. Herein, a kind of biomass CDs (F-CDs) with Flammulina velutipes (F. velutipes) as the carbon source was prepared by a one-step hydrothermal method without any additional modification. The prepared F-CDs have remarkable sensitivity and selectivity and there is a good linear relationship from 0 to 12 μM with a low detection limit of 95 nM for quantitative •OH assay. With excitation-independent emission, favourable biocompatibility and low toxicity, the F-CDs can penetrate cell membranes as •OH-responsive fluorescent sensors to detect intracellular •OH in A549 cells stimulated by phorbol 12-myristate 13-acetate (PMA) and successfully monitor the •OH concentration levels by the corresponding fluorescence change. Given the combined benefits of the green and eco-friendly approach, the F-CDs show promise as novel theranostics tools for early detection and treatment of related diseases.
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Affiliation(s)
- Yu Hou
- School of Applied Chemistry and Materials, Zhuhai College of Science and Technology, Zhuhai 519040, PR China.
| | - Jiawei Lin
- School of Applied Chemistry and Materials, Zhuhai College of Science and Technology, Zhuhai 519040, PR China
| | - Yichao Chen
- School of Applied Chemistry and Materials, Zhuhai College of Science and Technology, Zhuhai 519040, PR China
| | - Jianbin He
- School of Applied Chemistry and Materials, Zhuhai College of Science and Technology, Zhuhai 519040, PR China
| | - Zhe Su
- School of Applied Chemistry and Materials, Zhuhai College of Science and Technology, Zhuhai 519040, PR China
| | - Qinhua Zheng
- School of Pharmacy and Food Sciences, Zhuhai College of Science and Technology, Zhuhai 519040, PR China
| | - Xiujuan Zhao
- Department of Bioengineering, Zunyi Medical University Zhuhai Campus, Zhuhai 519041, PR China
| | - Xiaodan Lv
- School of Applied Chemistry and Materials, Zhuhai College of Science and Technology, Zhuhai 519040, PR China
| | - Xiuping Tang
- School of Applied Chemistry and Materials, Zhuhai College of Science and Technology, Zhuhai 519040, PR China.
| | - Changren Zhou
- School of Applied Chemistry and Materials, Zhuhai College of Science and Technology, Zhuhai 519040, PR China
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7
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Liu A, Cai H, Xu Z, Li J, Weng X, Liao C, He J, Liu L, Wang Y, Qu J, Li H, Song J, Guo J. Multifunctional carbon dots for glutathione detection and Golgi imaging. Talanta 2023; 259:124520. [PMID: 37058943 DOI: 10.1016/j.talanta.2023.124520] [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: 12/30/2022] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/16/2023]
Abstract
Glutathione (GSH) is present in almost every cell in the body and plays various integral roles in many biological processes. The Golgi apparatus is a eukaryotic organelle for the biosynthesis, intracellular distribution, and secretion of various macromolecules; however, the mechanism of GSH in the Golgi apparatus has not been fully elucidated. Here, specific and sensitive sulfur-nitrogen co-doped carbon dots (SNCDs) with orange-red fluorescence was synthesized for the detection of GSH in the Golgi apparatus. The SNCDs have a Stokes shift of 147 nm and excellent fluorescence stability, and they exhibited excellent selectivity and high sensitivity to GSH. The linear response of the SNCDs to GSH was in the range of 10-460 μM (LOD = 0.25 μΜ). More importantly, we used SNCDs with excellent optical properties and low cytotoxicity as probes, and successfully realized golgi imaging in HeLa cells and GSH detection at the same time.
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Affiliation(s)
- Aikun Liu
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China
| | - Haojie Cai
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China
| | - Zhibing Xu
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China
| | - Jinlei Li
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China
| | - Xiaoyu Weng
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China
| | - Changrui Liao
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China
| | - Jun He
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China
| | - Liwei Liu
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China
| | - Yiping Wang
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China
| | - Junle Qu
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China
| | - Hao Li
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China.
| | - Jun Song
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China.
| | - Jiaqing Guo
- State Key Laboratory of Radio Frequency Heterogeneous Integration(Shenzhen University); College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, PR China.
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8
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Prakash S, Sahu S, Patra B, Mishra AK. Understanding the aggregation of excitation wavelength independent emission of amphiphilic carbon dots for bioimaging and organic acid sensing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 290:122257. [PMID: 36565504 DOI: 10.1016/j.saa.2022.122257] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 12/05/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Herein, excitation wavelength-independent, tunable emissive and amphiphilic CDs with high quantum yield were synthesized by a low-temperature oxidation method employing banana peel waste as a carbon source. These CDs showed longer wavelength emissions (green to yellow) independent of the excitation wavelength when dispersed in different polar to non-polar solvents. The quantum yields of the same CDs were 9-32% in different solvent polarities for different emissions. On the other hand, a large stokes-shifted emission (∼9606 cm-1) was observed for CDs in the non-polar and weak polar solvents. The particle size of CDs increases from a hydrophobic to a hydrophilic environment with the change in emission colour from yellow to green. A polar and a non-polar host matrix were used to overcome the limitation of aggregation-caused quenching of CDs in the solid state to obtain bright emissions. These CDs were potentially used for naked-eye detection of trifluoroacetic acid (TFA) by changing the emission colour from yellow to orange under UV 365 nm. Sensing of TFA was also shown reversibly switch emission colour and average lifetime for multiple cycles. Additionally, the highly emissive CDs show negligible cytotoxicity in 3T3 fibroblast cells, indicating possible bioimaging applications in 3T3 cells.
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Affiliation(s)
- Swayam Prakash
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India.
| | - Saugata Sahu
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Bamadeb Patra
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai 600036, India
| | - Ashok Kumar Mishra
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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Carbon quantum dots with pH-responsive orange-/red-light emission for fluorescence imaging of intracellular pH. Mikrochim Acta 2022; 190:21. [PMID: 36512123 DOI: 10.1007/s00604-022-05605-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 12/01/2022] [Indexed: 12/15/2022]
Abstract
N-doped carbon quantum dots (N-CDs) with polyaminobenzene hydrazine as precursor were prepared by solvothermal method for the monitoring of pH fluctuation in HeLa cells via fluorescence imaging. The N-CDs show two emission wavelengths at 582 and 640 nm under different pH with two excitation wavelengths. The fluorescence intensity at 640 nm (λex = 520 nm) and the ratio of F582/F640 (λex = 470 nm) linearly increase with pH in the range of 2.4 ~ 3.6 (R2 = 992) and 5.6 ~ 7.6 (R2 = 0.987), respectively. The sensor exhibits high sensitivity and reversibility and anti-interference capability, thus enabling sensing pH change in intracellular environment in real time, as demonstrated by successful monitoring of intracellular pH fluctuation during H2O2 stimulation in HeLa cells.
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10
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Xu W, Ceylan Koydemir H. Non-invasive biomedical sensors for early detection and monitoring of bacterial biofilm growth at the point of care. LAB ON A CHIP 2022; 22:4758-4773. [PMID: 36398687 DOI: 10.1039/d2lc00776b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Bacterial infections have long been a serious global health issue. Biofilm formation complicates matters even more. The biofilm's extracellular polymeric substances (EPSs) matrix protects bacteria from the host's immune responses, yielding strong adhesion and drug resistance as the biofilm matures. Early bacterial biofilm detection and bacterial biofilm growth monitoring are crucial to treating biofilm-associated infections. Current detection methods are highly sensitive but not portable, are time-consuming, and require expensive equipment and complex operating procedures, limiting their use at the point of care. Therefore, there is an urgent need to develop affordable, on-body, and non-invasive biomedical sensors to continuously monitor and detect early biofilm growth at the point of care through personalized telemedicine. Herein, recent advances in developing non-invasive biomedical sensors for early detection and monitoring bacterial biofilm growth are comprehensively reviewed. First, biofilm's life cycle and its impact on the human body, such as biofilm-associated disease and infected medical devices, are introduced together with the challenges of biofilm treatment. Then, the current methods used in clinical and laboratory settings for biofilm detection and their challenges are discussed. Next, the current state of non-invasive sensors for direct and indirect detection of bacterial biofilms are summarized and highlighted with the detection parameters and their design details. Finally, commercially available products, challenges of current devices, and the further trend in biofilm detection sensors are discussed.
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Affiliation(s)
- Weiming Xu
- Department of Biomedical Engineering, Texas A&M University, College Station, 77843, Texas, USA.
- Center for Remote Health Technologies and Systems, Texas A&M Engineering Experiment Station, College Station, 77843, TX, USA
| | - Hatice Ceylan Koydemir
- Department of Biomedical Engineering, Texas A&M University, College Station, 77843, Texas, USA.
- Center for Remote Health Technologies and Systems, Texas A&M Engineering Experiment Station, College Station, 77843, TX, USA
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11
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Li X, Zhao L, Wu Y, Zhou A, Jiang X, Zhan Y, Sun Z. Nitrogen and boron co-doped carbon dots as a novel fluorescent probe for fluorogenic sensing of Ce 4+ and ratiometric detection of Al 3. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 282:121638. [PMID: 35908499 DOI: 10.1016/j.saa.2022.121638] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/03/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
Carbon dots have been widely focused on the field of metal ion detection due to their excellent optical property. Herein, novel orange fluorescent nitrogen and boron co-doped carbon dots (NB-CDs) are obtained by one-pot solvothermal using p-phenylenediamine and boric acid as raw materials. The NB-CDs exhibit excitation-independent emissions and the maximum emission wavelength is 597 nm at 420 nm excitation. The fluorescence can be quenched by Ce4+ effectively and selectively, and the detection range of Ce4+ is gained from 0.14 to 180 μM with a detection limit of as low as 0.14 μM. Furthermore, Al3+ can also recombine with NB-CDs surface functional groups, which shows a detection range from 1.07 to 100 μM and a detection limit of as low as 1.07 μM, accompanied with a blue-shift to 527 nm.
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Affiliation(s)
- Xin Li
- 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
| | - 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
| | - Yuhan Wu
- 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
| | - Ao Zhou
- 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 Jiang
- 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.
| | - 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.
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12
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Tao J, Zou H, Liao X, Lu X, Cao J, Pan J, Li C, Zheng Y. Fabrication of FA/HA-functionalized carbon dots for human breast cancer cell targeted imaging. Photodiagnosis Photodyn Ther 2022; 40:103099. [PMID: 36055626 DOI: 10.1016/j.pdpdt.2022.103099] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 08/17/2022] [Accepted: 08/29/2022] [Indexed: 12/14/2022]
Abstract
Green fluorescent carbon dots (CDs) were prepared by one-step hydrothermal method and then modified into folic acid functionalized carbon dots (FA-CDs) and hyaluronic acid functionalized carbon dots (HA-CDs) with targeted function to study their application in breast cancer cells imaging. The microstructure of the CDs observed through TEM showed the CDs with a scale of 2.69 nm. FT-IR and XPS showed the changes of bonds and functional groups that confirmed the transformation of COOH and NH2 to amide bonds. FA-CDs and HA-CDs had good water solubility and cytocompatibility, which laid a foundation for their application in human breast cancer cells imaging. At the same time, FA-CDs and HA-CDs had strong fluorescence excitation, and the optimal emission wavelength was about 450 nm. In fluorescence imaging of cells, carbon dots had bright green fluorescence in both breast cancer cells (MCF-7 cells) and normal cells (EC cells). After targeted endocytosis, FA-CDs and HA-CDs could emit bright green fluorescence in cancer cells but could not in normal cells, which proved that the synthesized FA-CDs and HA-CDs had targeting properties. FA-CDs and HA-CDs could be used to accurately identify breast cancer cells and normal cells as cancer diagnosis material, which had the potential application in early cancer diagnosis.
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Affiliation(s)
- Junting Tao
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Hao Zou
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Xiaokun Liao
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Xinjian Lu
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Jun Cao
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Jiaqi Pan
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Chaorong Li
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Yingying Zheng
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China.
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13
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Wang L, Gu D, Su Y, Ji D, Yang Y, Chen K, Pan H, Pan W. Easy Synthesis and Characterization of Novel Carbon Dots Using the One-Pot Green Method for Cancer Therapy. Pharmaceutics 2022; 14:2423. [PMID: 36365242 PMCID: PMC9696114 DOI: 10.3390/pharmaceutics14112423] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/28/2022] [Accepted: 11/03/2022] [Indexed: 08/27/2023] Open
Abstract
In this study, hyaluronic acid (HA) and carboxymethyl chitosan (CMCS) were used for the synthesis of novel targeted nanocarrier carbon dots (CDC-H) with photo-luminescence using a one-step hydrothermal method. Doxorubicin (DOX), a common chemotherapeutic agent, was loaded with the CDC-H through electrostatic interactions to form DOX-CDC-H complexes as a targeted antitumor drug delivery system. The synthesized CDC-H show a particle size of approximately 6 nm and a high fluorescence quantum yield of 11.64%. The physical and chemical character properties of CDC-H and DOX-CDC-H complexes were investigated using various techniques. The results show that CDC-H have stable luminescent properties and exhibit excellent water solubility. The in vitro release study showed that DOX-CDC-H exhibited pH-dependent release for 24 h. Confocal laser scanning microscopy was applied to investigate the potential of CDC-H for cell imaging and the cellular uptake of DOX-CDC-H in different cells (NIH-3T3 and 4T1 cells), and the results confirmed the target cell imaging and cellular uptake of DOX-CDC-H by specifically binding the CD44 receptors on the surface of tumor cells. The r MTT results suggest that the DOX-CDC-H complex may induce apoptosis in 4T1 cells, reducing the cytotoxicity of free DOX-induced apoptosis. In vivo antitumor experiments of DOX-CDC-H exhibited enhanced tumor cancer therapy. CDC-H have potential applications in bioimaging and antitumor drug delivery.
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Affiliation(s)
- Lijie Wang
- School of Pharmacy, Shenyang Medical College, Shenyang 110034, China
| | - Donghao Gu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yupei Su
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Dongxu Ji
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yue Yang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Kai Chen
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Hao Pan
- School of Pharmacy, Liaoning University, Shenyang 110036, China
| | - Weisan Pan
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
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14
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Ma J, Xu Y, Kong X, Wei Y, Meng D, Zhang Z. Fluorescence probe for selectively monitoring biothiols within cells and mouse depression diagnosis. Biomed Pharmacother 2022; 154:113647. [PMID: 36067570 DOI: 10.1016/j.biopha.2022.113647] [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: 07/17/2022] [Revised: 08/20/2022] [Accepted: 09/01/2022] [Indexed: 11/02/2022] Open
Abstract
As a global mental disorder, depression is associated with oxidative stress in the brain. Cysteine, a reductive biothiols, regulates the oxidative situation in many biological events including the stress that occurs in the tissues. Exploring the pathology and physiology of depression is still a challenge and always in an urgent need. Thus, developing a new method that could track Cys level without the interferes from other competing substances is of great importance. Herein, we developed a fluorescence probe that could selectively sensing Cys over other biothiols. Besides, we have demonstrated its desirable performance in cellular applications and mouse brain. This work provides a new method for Cys imaging and understanding pathogenesis of depression. We hope the work described here could be used as a potential chemical approach for the diagnosis of Cys associated diseases in clinical applications.
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Affiliation(s)
- Junyan Ma
- State Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, China; Department of Chemistry, Clemson University, Clemson 29634, SC, United States.
| | - Yaoyu Xu
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, United States
| | - Xiangtao Kong
- State Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, China
| | - Yuying Wei
- State Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, China
| | - Dan Meng
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Zhenxing Zhang
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871, China.
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15
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Chu N, Cong L, Yue J, Xu W, Xu S. Fluorescent Imaging Probe Targeting Mitochondria Based on Supramolecular Host-Guest Assembly and Disassembly. ACS OMEGA 2022; 7:34268-34277. [PMID: 36188319 PMCID: PMC9520549 DOI: 10.1021/acsomega.2c03766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/18/2022] [Indexed: 06/16/2023]
Abstract
Fluorescent dyes and probes play an indispensable role in bioimaging. The mitochondrion is one of the crucial organelles which takes charge of energy production and is the primary site of aerobic respiration in the cell. To illuminate mitochondria, a series of supramolecular fluorescent imaging probes were developed based on the host-guest assembly of 1,4-bis[2-(4-pyridyl)ethenyl]-benzene (BPEB) derivatives and cucurbituril[6] (CB[6]). These host-guest conjugates can be efficiently internalized into cells due to their water solubility and target mitochondria according to their positive charges. In response to the intracellular microenvironments, these conjugates start dynamic disassembly. The released BPEBs show a highly hydrophobic feature, which can crystallize to form fluorescent solids that illuminate the mitochondria. The intracellular disassembly of the host-guest probes was evidenced by fluorescence lifetime imaging in situ. These smart mitochondrion-targeting fluorescent imaging probes can be available to investigate the structures and functions of mitochondria, which are of great significance in the intracellular dynamic transformation of supramolecular assemblies.
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Affiliation(s)
- Ning Chu
- State
Key Laboratory of Supramolecular Structure and Materials, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
- Institute
of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Lili Cong
- State
Key Laboratory of Supramolecular Structure and Materials, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Jing Yue
- State
Key Laboratory of Supramolecular Structure and Materials, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
- College
of Chemical Engineering, Huanggang Normal
University, Huanggang, Hubei, 438000, P. R. China
| | - Weiqing Xu
- State
Key Laboratory of Supramolecular Structure and Materials, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
- Institute
of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Shuping Xu
- State
Key Laboratory of Supramolecular Structure and Materials, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
- Institute
of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
- Center
for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun 130012, P. R.
China
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16
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Nugroho D, Oh WC, Chanthai S, Benchawattananon R. Improving Minutiae Image of Latent Fingerprint Detection on Non-Porous Surface Materials under UV Light Using Sulfur Doped Carbon Quantum Dots from Magnolia Grandiflora Flower. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3277. [PMID: 36234405 PMCID: PMC9565868 DOI: 10.3390/nano12193277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
In this study, carbon quantum dots (CQDs) from Magnolia Grandiflora flower as a carbon precursor were obtained using a hydrothermal method under the optimized conditions affected by various heating times (14, 16, 18, and 20 min) and various electric power inputs (900-1400 W). Then, hydrogen sulfide (H2S) was added to dope the CQDs under the same manner. The aqueous solution of the S-CQDs were characterized by FTIR, XPS, EDX/SEM, and TEM, with nanoparticle size at around 4 nm. Then, the as-prepared S-CQDs were successfully applied with fine corn starch for detection of minutiae latent fingerprints on non-porous surface materials. It is demonstrated that the minutiae pattern is more clearly seen under commercial UV lamps with a bright blue fluorescence intensity. Therefore, this research has proved that the S-CQDs derived from plant material have a better potential as fluorescent probes for latent fingerprint detection.
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Affiliation(s)
- David Nugroho
- Department of Integrated Science, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Won-Chun Oh
- Department of Advanced Materials Science and Engineering, Hanseo University, Seosan-si 356-706, Korea
| | - Saksit Chanthai
- Materials Chemistry Research Center, Department Chemistry and Center of Excellence for Innovation Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
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17
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Hu Q, Wang W, Yang ZQ, Xiao L, Gong X, Liu L, Han J. An ultrasensitive sensing platform based on fluorescence carbon dots for chlorogenic acid determination in food samples. Food Chem 2022; 404:134395. [DOI: 10.1016/j.foodchem.2022.134395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 10/14/2022]
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18
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Ultrasensitive determination of allura red in food samples based on green-emissive carbon nanodots. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01564-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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19
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Cheng S, Wang X, Yan X, Xiao Y, Zhang Y. Simple synthesis of green luminescent N-doped carbon dots for malachite green determination. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:2616-2622. [PMID: 35734888 DOI: 10.1039/d2ay00682k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this paper, novel N-doped carbon dots (N-CDs) were prepared from fuchsin basic and ethylenediamine tetraacetic acid-disodium salt (EDTA-2Na). The N-CDs were characterized by a series of techniques and it was found that the average particle size was 2.75 nm, and the surface had functional groups such as -NH2 and -COOH. Interestingly, N-CDs exhibited a fast and sensitive response to malachite green (MG), which may be due to the inner filter effect (IFE). A method for the detection of MG in water samples from Jinyang Lake was developed using N-CDs, with a limit of detection (LOD) as low as 27.28 nM. Furthermore, N-CDs were utilized in the biological imaging of Arabidopsis thaliana.
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Affiliation(s)
- Sijie Cheng
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, Shanxi, China.
| | - Xin Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, Shanxi, China.
| | - Xuerong Yan
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, Shanxi, China.
| | - Yanteng Xiao
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, Shanxi, China.
| | - Yong Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, Shanxi, China.
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20
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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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21
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Luo M, Chen L, Wei J, Cui X, Cheng Z, Wang T, Chao I, Zhao Y, Gao H, Li P. A two-step strategy for simultaneous dual-mode detection of methyl-paraoxon and Ni (Ⅱ). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 239:113668. [PMID: 35623151 DOI: 10.1016/j.ecoenv.2022.113668] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Exogenous pollution of Chinese medicinal materials by pesticide residues and heavy metal ions has attracted great attention. Relying on the rapid development of nanotechnology and multidisciplinary fields, fluorescent techniques have been widely applied in contaminant detection and pollution monitoring due to their advantages of simple preparation, low cost, high throughput and others. Most importantly, synchronous detection of multi-targets has always been pursued as one of the major goals in the design of fluorescent probes. Herein, we firstly develop a simultaneous sensing method for methyl-paraoxon (MP) and Nickel ion (Ni, Ⅱ) by using carbon based fluorescent nanocomposite with ratiometric signal readout and nanozyme. Notably, the designed system showed excellent effectiveness even when the two pollutants co-exist. Under the optimum conditions, this method provides low limits of detection of 1.25 µM for methyl-paraoxon and 0.01 µM for Ni (Ⅱ). To further verify the reliability, recovery studies of these two analytes were performed on ginseng radix et rhizoma, nelumbinis semen, and water samples. In addition, smartphone-based visual analysis has been introduced to expand its applicability in point of care detection. This work not only expands the application of the dual-mode approach to pollutant detection, but also provides insights into the analysis of multiple pollutants in a single assay.
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Affiliation(s)
- Mai Luo
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Ling Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Jinchao Wei
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China.
| | - Xiping Cui
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Zehua Cheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Ting Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Incheng Chao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Yunyang Zhao
- Scientific Research Center, Wenzhou Medical University, Wenzhou 325035, China
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China; Department of Pharmaceutical Sciences, Faculty of Health Sciences, University of Macau, Macau 999078, China.
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22
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Easy-to-Use Visual Sensing System for Milk Freshness, Sensitized with Acidity-Responsive N-Doped Carbon Quantum Dots. Foods 2022; 11:foods11131855. [PMID: 35804673 PMCID: PMC9265914 DOI: 10.3390/foods11131855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/12/2022] [Accepted: 06/15/2022] [Indexed: 01/14/2023] Open
Abstract
This study established a flexible and eye-readable sensing system for the easy-to-use, visual detection of milk freshness, using acidity-responsive N-doped carbon quantum dots (N-CQDs). N-CQDs, rich in amino groups and with characteristic acidity sensitivity, exhibited high relative quantum yields of 25.2% and an optimal emission wavelength of 567 nm. The N-CQDs fluorescence quenching upon the dissociated hydrogen ions (H+) in milk and their reacting with the amino groups produced an excellent linear relation (R2 = 0.996) between the fluorescence intensity and the milk acidity, which indicated that the fluorescence of the N-CQDs was highly correlated with milk freshness. Furthermore, a fluorescence sensor was designed by depositing the N-CQDs on filter-papers and starch-gel films, to provide eye-readable signals under UV light. A fluorescence colorimetric card was developed, based on the decrease in fluorescence brightness as freshness deteriorated. With the advantages of high sensitivity and eye readability, the proposed sensor could detect spoiled milk in advance and without any preprocessing steps, offering a promising method of assessing food safety.
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23
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Li Q, Niu Z, Nan X, Wang E. An AIE-Active probe for detection and bioimaging of pH values based on lactone hydrolysis reaction. J Fluoresc 2022; 32:1611-1617. [PMID: 35593957 DOI: 10.1007/s10895-022-02967-6] [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: 03/20/2022] [Accepted: 05/05/2022] [Indexed: 11/24/2022]
Abstract
Cellular pH homeostasis is essential for many physiological and pathological processes. pH monitoring is helpful for the diagnosis, treatment and prevention of disorders and diseases. Herein, we developed a ratiometric fluorescent pH probe (TCC) based on a coumarin derivative containing a highly active lactone ring. TCC exhibited a typical AIE effect and emitted blue fluorescence under weak acidic condition. When under weak basic condition, the active lactone moiety underwent a hydrolysis reaction to afford a water-soluble product, which gave red-shifted emission. The emission color change from blue through cyan and then to yellow within pH 6.5-9.0 which is approximate to the biological pH range. And the fluorescence color change along with pH value is reversible. Furthermore, TCC was successfully utilized in the detection of the intracellular pH change of live HeLa cells, which indicated that TCC had practical potential in biomedical research.
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Affiliation(s)
- Qiao Li
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan normal University, 571158, Haikou, China
| | - Zhigang Niu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan normal University, 571158, Haikou, China
| | - Xuying Nan
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan normal University, 571158, Haikou, China
| | - Enju Wang
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan normal University, 571158, Haikou, China.
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24
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Phan LMT, Cho S. Fluorescent Carbon Dot-Supported Imaging-Based Biomedicine: A Comprehensive Review. Bioinorg Chem Appl 2022; 2022:9303703. [PMID: 35440939 PMCID: PMC9013550 DOI: 10.1155/2022/9303703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/27/2021] [Accepted: 03/17/2022] [Indexed: 12/23/2022] Open
Abstract
Carbon dots (CDs) provide distinctive advantages of strong fluorescence, good photostability, high water solubility, and outstanding biocompatibility, and thus are widely exploited as potential imaging agents for in vitro and in vivo bioimaging. Imaging is absolutely necessary when discovering the structure and function of cells, detecting biomarkers in diagnosis, tracking the progress of ongoing disease, treating various tumors, and monitoring therapeutic efficacy, making it an important approach in modern biomedicine. Numerous investigations of CDs have been intensively studied for utilization in bioimaging-supported medical sciences. However, there is still no article highlighting the potential importance of CD-based bioimaging to support various biomedical applications. Herein, we summarize the development of CDs as fluorescence (FL) nanoprobes with different FL colors for potential bioimaging-based applications in living cells, tissue, and organisms, including the bioimaging of various cell types and targets, bioimaging-supported sensing of metal ions and biomolecules, and FL imaging-guided tumor therapy. Current CD-based microscopic techniques and their advantages are also highlighted. This review discusses the significance of advanced CD-supported imaging-based in vitro and in vivo investigations, suggests the potential of CD-based imaging for biomedicine, and encourages the effective selection and development of superior probes and platforms for further biomedical applications.
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Affiliation(s)
- Le Minh Tu Phan
- School of Medicine and Pharmacy, The University of Danang, Danang 550000, Vietnam
| | - Sungbo Cho
- Department of Electronic Engineering, Gachon University, Seongnam, Gyeonggi-do 13120, Republic of Korea
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea
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25
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Kaur N, Tiwari P, Mate N, Sharma V, Mobin SM. Photoactivatable carbon dots as a label-free fluorescent probe for picric acid detection and light-induced bacterial inactivation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 229:112412. [PMID: 35227941 DOI: 10.1016/j.jphotobiol.2022.112412] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 01/18/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
The zero-dimensional carbon nanostructure known as carbon dots showed attractive attributes such as multicolour emission, very high quantum yield, up-conversion, very good aqueous solubility, eco-friendliness, and excellent biocompatibility. These outstanding features of the carbon dots have raised significant interest among the research community worldwide. In the current work, water-soluble nitrogen, silver, and gold co-doped bimetallic carbon dots (BCDs) were prepared using the one-pot hydrothermal method with citric acid as a sole carbon source. As prepared BCDs showed size in the range of 4-8 nm and excitation-independent emission behaviour with maximum emission observed at 427 nm. Additionally, these BCDs showed a very high quantum yield value of 50% and fluorescence lifetime value of 10.1 ns respectively. Interestingly, as prepared BCDs selectively sense picric acid (PA) by exhibiting "selective fluorescence turn-off" behaviour in the presence of PA with a limit of detection value (LOD) of 46 nM. Further, as prepared BCDs were explored for photodynamic therapy to inactivate bacterial growth in the presence of light (400-700 nm) by generating singlet oxygen. Thus as prepared BCDs offer lots of potentials to use a nanoprobe to detect picric acid in an aqueous medium and to design next-generation antibacterial materials.
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Affiliation(s)
- Navpreet Kaur
- Department of Biosciences and Bio-Medical Engineering, Indian Institute of Technology, Simrol, Khandwa Road, Indore 453552, India
| | - Pranav Tiwari
- Department of Chemistry, Indian Institute of Technology, Simrol, Khandwa Road, Indore 453552, India
| | - Nirmiti Mate
- Department of Chemistry, Indian Institute of Technology, Simrol, Khandwa Road, Indore 453552, India
| | - Vinay Sharma
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Jammu 181221, Jammu & Kashmir, India
| | - Shaikh M Mobin
- Department of Biosciences and Bio-Medical Engineering, Indian Institute of Technology, Simrol, Khandwa Road, Indore 453552, India; Department of Chemistry, Indian Institute of Technology, Simrol, Khandwa Road, Indore 453552, India.
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26
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Dual-excitation red-emissive carbon dots excited by ultraviolet light for the mitochondria-targetable imaging and monitoring of biological process in living cells. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113702] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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27
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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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28
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Highly Sensitive Fingerprint Detection under UV Light on Non-Porous Surface Using Starch-Powder Based Luminol-Doped Carbon Dots (N-CDs) from Tender Coconut Water as a Green Carbon Source. NANOMATERIALS 2022; 12:nano12030400. [PMID: 35159745 PMCID: PMC8839162 DOI: 10.3390/nano12030400] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/20/2022] [Accepted: 01/23/2022] [Indexed: 12/29/2022]
Abstract
This study aims to synthesize carbon dots from a natural resource and will be used to detect a latent fingerprint on a non-porous surface. The carbon dots (CDs) were prepared by adding luminol to coconut water and ethanol via a hydrothermal method. Luminol enhances the chemiluminescence of the CDs, which show more distinct blue light under a UV lamp compared with bare CDs. To detect the latent fingerprint, luminol carbon dots (N-CDs) were combined with commercial starch and stirred at room temperature for 24 h. Their characteristics and optical properties were measured using EDX-SEM, HR-TEM, FTIR, XPS, UV-visible absorption, and fluorescence. In this research, it was found that the N-CDs had a d-spacing of 0.5 nm and a size of 12.9 nm. The N-CDs had a fluorescence intensity 551% higher than the standard normally used. N-CDs can be used to detect latent fingerprints on a non-porous surface and are easy to detect under a UV lamp at 395 nm. Therefore, luminol has a high potential to increase sensitive and stable traces of chemiluminescence from the green CDs for forensic latent fingerprint detection.
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29
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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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30
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Ghereghlou M, Esmaeili AA, Darroudi M. Preparation of Fe
3
O
4
@C‐dots as a recyclable magnetic nanocatalyst using
Elaeagnus angustifolia
and its application for the green synthesis of formamidines. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6387] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Mahnaz Ghereghlou
- Department of Chemistry, Faculty of Sciences Ferdowsi University of Mashhad Mashhad Iran
| | - Abbas Ali Esmaeili
- Department of Chemistry, Faculty of Sciences Ferdowsi University of Mashhad Mashhad Iran
| | - Majid Darroudi
- Nuclear Medicine Research Center Mashhad University of Medical Sciences Mashhad Iran
- Department of Medical Biotechnology and Nanotechnology, School of Medicine Mashhad University of Medical Sciences Mashhad Iran
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31
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Adsorption and desorption mechanisms on graphene oxide nanosheets: Kinetics and tuning. Innovation (N Y) 2021; 2:100137. [PMID: 34557777 PMCID: PMC8454550 DOI: 10.1016/j.xinn.2021.100137] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 06/15/2021] [Indexed: 02/07/2023] Open
Abstract
A knowledge of the adsorption and desorption behavior of sorbates on surface adsorptive site (SAS) is the key to optimizing the chemical reactivity of catalysts. However, direct identification of the chemical reactivity of SASs is still a challenge due to the limitations of characterization techniques. Here, we present a new pathway to determine the kinetics of adsorption/desorption on SASs of graphene oxide (GO) based on total internal reflectance fluorescence microscopy. The switching on and off of the fluorescent signal of SAS lit by carbon dots (CDs) was used to trace the adsorption process and desorption process. We find that sodium pyrophosphate (PPi) could increase the adsorption equilibrium of CDs thermodynamically and promote the substrate-assisted desorption pathway kinetically. At the single turnover level, it was disclosed that the species that can promote desorption may also be an adsorption promoter. Such discovery provides significant guidance for improving the chemical reactivity of the heterogeneous catalyst. The kinetics of adsorption and desorption process were revealed, respectively, by monitoring a fluorogenic process of carbon dots on the surface of graphene oxides at the single turnover level By regulating the equilibrium of adsorption and desorption, a mechanism for the simultaneous promotion of adsorption and desorption has been discovered A desorption accelerator could play a satisfactory double action, i.e., adsorption promoter on thermodynamics and desorption promoter on kinetics
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32
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Lesani P, Lu Z, Singh G, Mursi M, Mirkhalaf M, New EJ, Zreiqat H. Influence of carbon dot synthetic parameters on photophysical and biological properties. NANOSCALE 2021; 13:11138-11149. [PMID: 34132711 DOI: 10.1039/d1nr01389k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recently, carbon dots (CDs) have been widely investigated for biological applications in imaging. One-step hydrothermal synthesis is considered to be one of the most promising methods for the synthesis of CDs, due to its simple and rapid manipulation, flexible selection of ingredients, environmentally friendly conditions, and low-cost. A number of synthetic and post-synthetic parameters, including solvent, heating time, dopant quantity, and particle size distribution, play a crucial role in controlling the size and surface structure of CDs, which ultimately have influence on their photophysical and biological behavior. Despite the crucial role of each of these parameters in defining the yield and nature of synthesized CDs, they have not previously been rigorously optimized, particularly with respect to desired biological applications. Herein, we report our comprehensive optimization of the parameters employed for the hydrothermal synthesis of CDs to gain a better understanding of the effect of these parameters on optical properties, cytotoxicity, and cellular uptake efficiency. Furthermore, this work will open up new pathways toward the design of CDs with physiochemical properties tailored for specific biomedical applications such as bioimaging.
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Affiliation(s)
- Pooria Lesani
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, the University of Sydney, NSW 2006, Australia.
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33
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Tao J, Feng S, Liu B, Pan J, Li C, Zheng Y. Hyaluronic acid conjugated nitrogen-doped graphene quantum dots for identification of human breast cancer cells. Biomed Mater 2021; 16. [PMID: 34157704 DOI: 10.1088/1748-605x/ac0d93] [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: 03/15/2021] [Accepted: 06/22/2021] [Indexed: 11/12/2022]
Abstract
Accurate distinguish of cancer cells through fluorescence plays an important role in cancer diagnosis. Here we synthesized a blue fluorescent nitrogen-doped graphene quantum dots (N-GQDs) from citric acid and diethylamine via one-step hydrothermal synthesis method which was simple and quick to avoid by-products, and highlighted the binding sites to achieve precise combination. Due to the nitrogen element doping, amide II bond was amply obtained and abundant binding sites were provided for hyaluronic acid (HA) conjugation. N-GQDs solution with different pH value was then conjugated to HA via an amide bond for the recognition of human breast cancer cells (MCF-7 cells), and the formation of amide bond was more favorable under alkaline conditions. HA conjugated N-GQDs (HA-N-GQDs) were combined with CD44 which was over expressed on the surface of MCF-7 cells, resulting in MCF-7 cells performing stronger fluorescence. HA-N-GQDs showed high fluorescence, low toxicity, and good cytocompatibility, which held it play a role in fluorescence imaging for accurate identification of cancer cells.
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Affiliation(s)
- Junting Tao
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Shixuan Feng
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Bing Liu
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Jiaqi Pan
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Chaorong Li
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Yingying Zheng
- Department of Physics, and Key Laboratory of ATMMT Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
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34
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Wu W, Wu X, He M, Yuan X, Lai J, Sun H. A novel carbon dot/polyacrylamide composite hydrogel film for reversible detection of the antibacterial drug ornidazole. RSC Adv 2021; 11:22993-23001. [PMID: 35480440 PMCID: PMC9034351 DOI: 10.1039/d1ra01478a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 06/15/2021] [Indexed: 11/21/2022] Open
Abstract
A carbon dot/polyacrylamide (CDs/PAM) composite hydrogel film with stable fluorescence performance was fabricated by merging a hydrogel film and carbon dots (CDs) with blue fluorescence, which were prepared by hydrothermal synthesis using anhydrous citric acid and acrylamide as carbon sources. The obtained CDs/PAM composite hydrogel film exhibited a good fluorescence quenching effect on ornidazole (ONZ), and can be used for the quantitative detection of ONZ. In the ONZ concentration range of 5–60 μM, a good linear relationship between the fluorescence quenching efficiency of the CDs/PAM composite hydrogel film and the concentration of ONZ solution was obtained with a low detection limit of 2.35 μM. In addition, the detection system has good selectivity and strong anti-interference capacity, and can be used in repeated cycles for detection. A novel carbon dot/polyacrylamide composite hydrogel film with stable blue fluorescence performance was fabricated by merging a hydrogel film and carbon dots, which was used for highly selective and quantitative detection of ONZ in real samples.![]()
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Affiliation(s)
- Weizhen Wu
- School of Chemistry, South China Normal University Guangzhou 510006 China
| | - Xiaoyi Wu
- School of Chemistry, South China Normal University Guangzhou 510006 China .,College of Environmental Science & Engineering, Guangzhou University Guangzhou 510006 China
| | - Miao He
- School of Chemistry, South China Normal University Guangzhou 510006 China
| | - Xiaolin Yuan
- School of Chemistry, South China Normal University Guangzhou 510006 China
| | - Jiaping Lai
- School of Chemistry, South China Normal University Guangzhou 510006 China
| | - Hui Sun
- College of Environmental Science & Engineering, Guangzhou University Guangzhou 510006 China
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35
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Chung S, Revia RA, Zhang M. Graphene Quantum Dots and Their Applications in Bioimaging, Biosensing, and Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e1904362. [PMID: 31833101 PMCID: PMC7289657 DOI: 10.1002/adma.201904362] [Citation(s) in RCA: 219] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/22/2019] [Indexed: 05/05/2023]
Abstract
Graphene quantum dots (GQDs) are carbon-based, nanoscale particles that exhibit excellent chemical, physical, and biological properties that allow them to excel in a wide range of applications in nanomedicine. The unique electronic structure of GQDs confers functional attributes onto these nanomaterials such as strong and tunable photoluminescence for use in fluorescence bioimaging and biosensing, a high loading capacity of aromatic compounds for small-molecule drug delivery, and the ability to absorb incident radiation for use in the cancer-killing techniques of photothermal and photodynamic therapy. Recent advances in the development of GQDs as novel, multifunctional biomaterials are presented with a focus on their physicochemical, electronic, magnetic, and biological properties, along with a discussion of technical progress in the synthesis of GQDs. Progress toward the application of GQDs in bioimaging, biosensing, and therapy is reviewed, along with a discussion of the current limitations and future directions of this exciting material.
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Affiliation(s)
- Seokhwan Chung
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Richard A Revia
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Miqin Zhang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
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36
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Synthesis and Characterization of a Fe 3O 4@PNIPAM-Chitosan Nanocomposite and Its Potential Application in Vincristine Delivery. Polymers (Basel) 2021; 13:polym13111704. [PMID: 34070978 PMCID: PMC8197087 DOI: 10.3390/polym13111704] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 05/14/2021] [Accepted: 05/20/2021] [Indexed: 12/26/2022] Open
Abstract
In this research, we conducted a systematic evaluation of the synthesis parameters of a multi-responsive core-shell nanocomposite (Fe3O4 nanoparticles coated by poly(N-isopropylacrylamide) (PNIPAM) in the presence of chitosan (CS) (Fe3O4@PNIPAM-CS). Scanning electron microscopy (SEM) was used to follow the size and morphology of the nanocomposite. The functionalization and the coating of Fe3O4 nanoparticles (Nps) were evaluated by the ζ-potential evolution and Fourier Transform infrared spectroscopy (FTIR). The nanocomposite exhibited a collapsed structure when the temperature was driven above the lower critical solution temperature (LCST), determined by dynamic light scattering (DLS). The LCST was successfully shifted from 33 to 39 °C, which opens the possibility of using it in physiological systems. A magnetometry test was performed to confirm the superparamagnetic behavior at room temperature. The obtained systems allow the possibility to control specific properties, such as particle size and morphology. Finally, we performed vincristine sulfate loading and release tests. Mathematical analysis reveals a two-stage structural-relaxation release model beyond the LCST. In contrast, a temperature of 25 °C promotes the diffusional release model. As a result, a more in-depth comprehension of the release kinetics was achieved. The synthesis and study of a magnetic core-shell nanoplatform offer a smart material as an alternative targeted release therapy due to its thermomagnetic properties.
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37
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Meng Y, Jiao Y, Zhang Y, Lu W, Wang X, Shuang S, Dong C. Facile synthesis of orange fluorescence multifunctional carbon dots for label-free detection of vitamin B 12 and endogenous/exogenous peroxynitrite. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124422. [PMID: 33183837 DOI: 10.1016/j.jhazmat.2020.124422] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/15/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
In this work, orange emission fluorescent multifunctional carbon dots (O-CDs) were designed for the label-free detection of vitamin B12 (VB12),endogenous/exogenous peroxynitrite (ONOO-) sensing, cell imaging, and fluorescent flexible film preparation. The O-CDs with excitation-independent were prepared using safranine T and ethanol as precursors via one-step hydrothermal process. VB12 was utilized as a quencher to quench the fluorescence of O-CDs due to the internal filtration effect (IFE). Two-segment linear ranges are 1-65 μM and 70-140 μM, and the detection limit was calculated as 0.62 μM. Besides, ONOO- can reduce the fluorescence intensity of O-CDs based on static quenching (SQ). The linear ranges are 0.3-9 μM and 9-48 μM, and the detection limit was 0.06 μM. Moreover, the O-CDs were exploited as a cellular imaging reagent for intracellular VB12 and endogenous/exogenous ONOO- imaging owing to its great biocompatibility, low toxicity and strong photostability. These results indicate that O-CDs have the potential to be used as a sensitive fluorescence probe to rapidly monitor VB12 and endogenous/exogenous ONOO- with high selectivity in living cells. Also, the as-proposed O-CDs can be employed to fabricate O-CDs/PVA composites as fluorescent flexible films. All of the above prove that the O-CDs present great prospect in multiple applications such as biosensing, cellular labeling, biomedical optical imaging, and fluorescent films.
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Affiliation(s)
- Yating Meng
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Yuan Jiao
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Yuan Zhang
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Wenjing Lu
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Xiaodong Wang
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Shaomin Shuang
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Chuan Dong
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
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38
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Meng Y, Zhang H, Li M, Lu W, Liu Y, Gong X, Shuang S, Dong C. A facile synthesis of long-wavelength emission nitrogen-doped carbon dots for intracellular pH variation and hypochlorite sensing. Biomater Sci 2021; 9:2255-2261. [PMID: 33533378 DOI: 10.1039/d0bm02047h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Intracellular pH and hypochlorite (ClO-) concentration play an important role in life activities, so there is an urgent need to develop a valid strategy to monitor pH and ClO- in biological systems with high sensitivity and specificity. In this study, we report long-wavelength emission nitrogen-doped carbon dots (N-CDs) and their potential applications in intracellular pH variation, ClO- sensing and cell imaging. The N-CDs were prepared via a facile one-pot hydrothermal method of neutral red (NR) and glutamine (Gln). N-CDs exhibited a pH-sensitive response in the range of 4.0-9.0 and a good linear relationship in the range of 5.6-7.4, which indicated that N-CDs are an ideal agent for monitoring pH fluctuations in living cells. In addition, ClO- was capable of reducing the photoluminescence of N-CDs based on static quenching. The linear range is 1.5-112.5 μM and 112.5-187.5 μM, and the LOD is 0.27 μM. Besides, the as-fabricated N-CDs have been smoothly achieved to monitor pH and ClO- in PC-12 living cells due to their great biocompatibility and lower cytotoxicity, demonstrating their promising applications in the biomedical field. Compared with other CD-based methods, the as-proposed N-CDs have a longer fluorescence emission, which makes them potentially valuable in biological systems. The results pave a way towards the construction of long-wavelength carbon-based nanomaterials for fluorescence sensing and cell imaging.
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Affiliation(s)
- Yating Meng
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, No. 92 Wucheng rd., Taiyuan 030006, China
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39
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Hu Q, Sun H, Liu L, Xiao L, Yang ZQ, Rao S, Gong X, Han J. Development of an ultrasensitive spectrophotometric method for carmine determination based on fluorescent carbon dots. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:731-740. [PMID: 33684336 DOI: 10.1080/19440049.2021.1889045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A high-efficiency spectrophotometric method based on nitrogen-doped fluorescent carbon dots (N-FCDs) was developed for the ultrasensitive determination of carmine (CRM) in foodstuffs. The N-FCDs were fabricated via a one-pot hydrothermal method with m-phenylenediamine as the starting material. The detection principle was based on the fluorescence quenching effect of N-FCDs by CRM, where their interaction was due to the inner filter effect (IFE) and static quenching. A good linear relationship was established for CRM detection in a concentration range of 0.1-10.0 μM with a detection limit as low as 11.2 nM. The proposed method achieved satisfactory results for CRM determination in commercial food products with recoveries better than 98.6% and relative standard deviations (RSDs) less than 4.07%. The method established in this study was simple, ultrasensitive and reliable for rapid detecting CRM in a food matrix, which could be potentially used as a useful sensing agent for the analysis of additive food colourants.
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Affiliation(s)
- Qin Hu
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, PR China.,Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Huijuan Sun
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, PR China.,Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Lingfei Liu
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, PR China.,Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Lixia Xiao
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, PR China.,Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Zhen-Quan Yang
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, PR China.,Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Shengqi Rao
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, PR China.,Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Xiaojuan Gong
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Jie Han
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, PR China
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40
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A carbon dots-based ratiometric fluorescence probe for monitoring intracellular pH and bioimaging. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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41
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Bright blue emissions N-doped carbon dots from a single precursor and their application in the trace detection of Fe3+ and F−. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120087] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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42
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Zhi B, Yao X, Wu M, Mensch A, Cui Y, Deng J, Duchimaza-Heredia JJ, Trerayapiwat KJ, Niehaus T, Nishimoto Y, Frank BP, Zhang Y, Lewis RE, Kappel EA, Hamers RJ, Fairbrother HD, Orr G, Murphy CJ, Cui Q, Haynes CL. Multicolor polymeric carbon dots: synthesis, separation and polyamide-supported molecular fluorescence. Chem Sci 2020; 12:2441-2455. [PMID: 34164010 PMCID: PMC8179321 DOI: 10.1039/d0sc05743f] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Multicolor carbon dots (CDs) have been developed recently and demonstrate great potential in bio-imaging, sensing, and LEDs. However, the fluorescence mechanism of their tunable colors is still under debate, and efficient separation methods are still challenging. Herein, we synthesized multicolor polymeric CDs through solvothermal treatment of citric acid and urea in formamide. Automated reversed-phase column separation was used to achieve fractions with distinct colors, including blue, cyan, green, yellow, orange and red. This work explores the physicochemical properties and fluorescence origins of the red, green, and blue fractions in depth with combined experimental and computational methods. Three dominant fluorescence mechanism hypotheses were evaluated by comparing time-dependent density functional theory and molecular dynamics calculation results to measured characteristics. We find that blue fluorescence likely comes from embedded small molecules trapped in carbonaceous cages, while pyrene analogs are the most likely origin for emission at other wavelengths, especially in the red. Also important, upon interaction with live cells, different CD color fractions are trafficked to different sub-cellular locations. Super-resolution imaging shows that the blue CDs were found in a variety of organelles, such as mitochondria and lysosomes, while the red CDs were primarily localized in lysosomes. These findings significantly advance our understanding of the photoluminescence mechanism of multicolor CDs and help to guide future design and applications of these promising nanomaterials.
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Affiliation(s)
- Bo Zhi
- Department of Chemistry, University of Minnesota-Twin Cities 207 Pleasant Street SE Minneapolis Minnesota 55455 USA
| | - Xiaoxiao Yao
- Department of Chemistry, University of Minnesota-Twin Cities 207 Pleasant Street SE Minneapolis Minnesota 55455 USA
| | - Meng Wu
- Department of Chemistry, University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana Illinois 61801 USA
| | - Arielle Mensch
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory 3335 Innovation Boulevard Richland Washington 99352 USA
| | - Yi Cui
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory 3335 Innovation Boulevard Richland Washington 99352 USA
| | - Jiahua Deng
- Department of Chemistry, Boston University 590 Commonwealth Avenue Boston Massachusetts 02215 USA
| | - Juan J Duchimaza-Heredia
- Department of Chemistry, Boston University 590 Commonwealth Avenue Boston Massachusetts 02215 USA
| | | | - Thomas Niehaus
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière F-69622 Lyon France
| | - Yoshio Nishimoto
- Graduate School of Science, Kyoto University Kyoto 606-8502 Japan
| | - Benjamin P Frank
- Department of Chemistry, Johns Hopkins University Baltimore MD 21218 USA
| | - Yongqian Zhang
- Department of Chemistry, University of Wisconsin-Madison 1101 University Avenue Madison Wisconsin 53706 USA
| | - Riley E Lewis
- Department of Chemistry, University of Minnesota-Twin Cities 207 Pleasant Street SE Minneapolis Minnesota 55455 USA
| | - Elaine A Kappel
- Department of Chemistry, University of Minnesota-Twin Cities 207 Pleasant Street SE Minneapolis Minnesota 55455 USA
| | - Robert J Hamers
- Department of Chemistry, University of Wisconsin-Madison 1101 University Avenue Madison Wisconsin 53706 USA
| | | | - Galya Orr
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory 3335 Innovation Boulevard Richland Washington 99352 USA
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana Illinois 61801 USA
| | - Qiang Cui
- Department of Chemistry, Boston University 590 Commonwealth Avenue Boston Massachusetts 02215 USA.,Departments of Physics and Biomedical Engineering, Boston University 590 Commonwealth Avenue Boston Massachusetts 02215 USA
| | - Christy L Haynes
- Department of Chemistry, University of Minnesota-Twin Cities 207 Pleasant Street SE Minneapolis Minnesota 55455 USA
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43
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Wang L, Choi WM, Chung JS, Hur SH. Multicolor Emitting N-Doped Carbon Dots Derived from Ascorbic Acid and Phenylenediamine Precursors. NANOSCALE RESEARCH LETTERS 2020; 15:222. [PMID: 33270167 PMCID: PMC7714885 DOI: 10.1186/s11671-020-03453-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/24/2020] [Indexed: 05/30/2023]
Abstract
In this research, we report the green, blue, and orange color emitting N-doped carbon dots (CDs), which are being synthesized from ascorbic acid and o-/m-/p-phenylenediamine (o-PDA, m-PDA, and p-PDA, respectively). The effects of the solvent polarity and solution pH on the PL emission properties of the as-synthesized CDs have been systematically investigated. It has been observed that the PL emission of the as-synthesized CDs decreases with the increase in solvent polarity due to the greater agglomeration. The surface charge of CDs also shows prominent effects on the pH-dependent PL emission properties.
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Affiliation(s)
- Linlin Wang
- School of Chemical Engineering, University of Ulsan, Daehak-ro 93, Nam-gu, Ulsan, 44610, Republic of Korea
| | - Won Mook Choi
- School of Chemical Engineering, University of Ulsan, Daehak-ro 93, Nam-gu, Ulsan, 44610, Republic of Korea
| | - Jin Suk Chung
- School of Chemical Engineering, University of Ulsan, Daehak-ro 93, Nam-gu, Ulsan, 44610, Republic of Korea
| | - Seung Hyun Hur
- School of Chemical Engineering, University of Ulsan, Daehak-ro 93, Nam-gu, Ulsan, 44610, Republic of Korea.
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44
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Huang S, Li W, Zhou X, Xie M, Luo Q, Wen H, Luo Y, Xue W. One-step synthesis of levodopa functionalized carbon quantum dots for selective detection of tyrosinase and inhibitor screening. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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45
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Steinegger A, Wolfbeis OS, Borisov SM. Optical Sensing and Imaging of pH Values: Spectroscopies, Materials, and Applications. Chem Rev 2020; 120:12357-12489. [PMID: 33147405 PMCID: PMC7705895 DOI: 10.1021/acs.chemrev.0c00451] [Citation(s) in RCA: 174] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Indexed: 12/13/2022]
Abstract
This is the first comprehensive review on methods and materials for use in optical sensing of pH values and on applications of such sensors. The Review starts with an introduction that contains subsections on the definition of the pH value, a brief look back on optical methods for sensing of pH, on the effects of ionic strength on pH values and pKa values, on the selectivity, sensitivity, precision, dynamic ranges, and temperature dependence of such sensors. Commonly used optical sensing schemes are covered in a next main chapter, with subsections on methods based on absorptiometry, reflectometry, luminescence, refractive index, surface plasmon resonance, photonic crystals, turbidity, mechanical displacement, interferometry, and solvatochromism. This is followed by sections on absorptiometric and luminescent molecular probes for use pH in sensors. Further large sections cover polymeric hosts and supports, and methods for immobilization of indicator dyes. Further and more specific sections summarize the state of the art in materials with dual functionality (indicator and host), nanomaterials, sensors based on upconversion and 2-photon absorption, multiparameter sensors, imaging, and sensors for extreme pH values. A chapter on the many sensing formats has subsections on planar, fiber optic, evanescent wave, refractive index, surface plasmon resonance and holography based sensor designs, and on distributed sensing. Another section summarizes selected applications in areas, such as medicine, biology, oceanography, bioprocess monitoring, corrosion studies, on the use of pH sensors as transducers in biosensors and chemical sensors, and their integration into flow-injection analyzers, microfluidic devices, and lab-on-a-chip systems. An extra section is devoted to current challenges, with subsections on challenges of general nature and those of specific nature. A concluding section gives an outlook on potential future trends and perspectives.
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Affiliation(s)
- Andreas Steinegger
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria
| | - Otto S. Wolfbeis
- Institute
of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, D-93040 Regensburg, Germany
| | - Sergey M. Borisov
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria
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46
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Song S, Hu J, Li M, Gong X, Dong C, Shuang S. Fe 3+ and intracellular pH determination based on orange fluorescence carbon dots co-doped with boron, nitrogen and sulfur. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111478. [PMID: 33255057 DOI: 10.1016/j.msec.2020.111478] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/17/2020] [Accepted: 08/31/2020] [Indexed: 10/23/2022]
Abstract
The fluorescent boron, nitrogen and sulfur co-doped carbon dots (BNSCDs) were prepared by simple hydrothermal reaction of 4-carboxyphenylboronic acid and 2,5-diaminobenzenesulfonic acid at 200 °C for 8 h. The fluorescence of the BNSCDs could be quenched by Fe3+ based on the electron transfer between Fe3+ and BNSCDs, so a label-free, good selectivity and high sensitivity method for Fe3+determination was established with linear range and LOD of 1.5-692 μmol/L and 87 nmol/L, respectively. And then the fluorescent probe was employed for detection of Fe3+ in tap water, coal gangue, fly ash and food samples successfully. Moreover, the as-prepared BNSCDs could serve as a novel pH fluorescent probe in the range of pH 1.60-7.00, which could be attributed to the proton transfer of carboxyl groups on the surface of BNSCDs. More importantly, the pH fluorescent probe possesses fast, real-time and low toxicity, applying for intracellular pH fluorescence imaging in HIC, HIEC, LO2 and SMMC7721 cells. In view of its simplicity, timely response and outstanding compatibility, the as-fabricated BNSCDs show the potential applications in water quality and solid waste monitoring, food detection, real-time measuring of intracellular pH change in vitro.
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Affiliation(s)
- Shengmei Song
- Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
| | - Junhui Hu
- Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Minglu Li
- Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Xiaojuan Gong
- Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
| | - Chuan Dong
- Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Shaomin Shuang
- Institute of Environmental Science, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
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47
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Zhang C, Hu Q, Wu S, Chen F. Selective determination of DNA based on the fluorescence recovery of carbon dots quenched by Ru(bpy)2(dppz)2+. Talanta 2020; 217:121103. [DOI: 10.1016/j.talanta.2020.121103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 04/24/2020] [Accepted: 04/29/2020] [Indexed: 10/24/2022]
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48
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"Turn-on" fluorometric probe for α-glucosidase activity using red fluorescent carbon dots and 3,3',5,5'-tetramethylbenzidine. Mikrochim Acta 2020; 187:498. [PMID: 32803321 DOI: 10.1007/s00604-020-04479-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 08/04/2020] [Indexed: 10/23/2022]
Abstract
A turn-on method for determining α-glucosidase activity is described using a chemical redox strategy in which the fluorescence of red fluorescent carbon dots (CDs) is modulated. The red fluorescent CDs were prepared using a solvothermal method with p-phenylenediamine and sodium citrate. The excitation and emission maxima of the CDs were 490 and 618 nm, respectively. Ce4+ ions catalyze the oxidation of the colorless substrate 3,3',5,5'-tetramethylbenzidine (TMB) to give a blue oxidized TMB product (oxTMB). Absorption by oxTMB overlaps with the red light emitted by the CDs because of the fluorescence inner filter effect; therefore the presence of oxTMB decreases the intensity of fluorescence emission by the CDs. However, hydrolysis of L-ascorbic acid-2-O-α-D-glucopyranosyl by the enzyme α-glucosidase causes formation of ascorbic acid . Ascorbic acid reduces oxTMB to TMB, so that the inner filter effect disappeared and the fluorescence recovered. The strategy allows α-glucosidase activity to be successfully determined down to 0.02 U mL-1 and gives a dynamic linear range of 0-5.5 U mL-1. The strategy is very selective for α-glucosidase activity in the presence of potentially interfering substances. The method has been successfully applied to the determination of α-glucosidase activity in spiked human serum samples and gave satisfactory results. Graphical Abstract Schematic of the method used to prepare the carbon dots and the mechanisms involved in determining α-glucosidase activity.
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49
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Facile synthesis of ratiometric fluorescent carbon dots for pH visual sensing and cellular imaging. Talanta 2020; 216:120943. [DOI: 10.1016/j.talanta.2020.120943] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/13/2020] [Accepted: 03/16/2020] [Indexed: 11/24/2022]
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50
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Hu Q, Sun H, Zhou X, Gong X, Xiao L, Liu L, Yang ZQ. Bright-yellow-emissive nitrogen-doped carbon nanodots as a fluorescent nanoprobe for the straightforward detection of glutathione in food samples. Food Chem 2020; 325:126946. [PMID: 32387942 DOI: 10.1016/j.foodchem.2020.126946] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 04/12/2020] [Accepted: 04/28/2020] [Indexed: 01/17/2023]
Abstract
In this work, a novel yellow-emissive nanoprobe was for the first time developed for the fast detection of glutathione (GSH) based on nitrogen-doped carbon nanodots (N-CNDs) prepared via hydrothermal heating of o-Phenylenediamine. The N-CNDs and GSH could form non-fluorescent complex via static interaction, resulting in the fluorescence quenching of N-CNDs. Under optimal conditions, the N-CNDs served as a fluorescent nanoprobe for GSH sensing in a straightforward way with high selectivity and sensitivity. Two good linear responses were found for GSH detection in concentration ranges of 0.1-1.0 μM and 1.0-220.0 μM, respectively. The corresponding detection limits are as low as 0.059 μM and 5.54 μM, respectively. Meanwhile, the proposed sensing system was successfully applied for GSH determination in vegetable and fruit samples with high accuracy. This work highlights the detection of GSH in a simple, fast, cost-effective, selective and ultrasensitive way, which paves a new way for other food quality monitoring.
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Affiliation(s)
- Qin Hu
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, PR China
| | - Huijuan Sun
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, PR China
| | - Xiaoyan Zhou
- College of Tourism and Cuisine, Yangzhou University, Yangzhou, Jiangsu 225001, PR China
| | - Xiaojuan Gong
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Lixia Xiao
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, PR China.
| | - Lizhen Liu
- School of Chemistry and Environmental Engineering, Shanxi Datong University, Datong 037009, PR China
| | - Zhen-Quan Yang
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, PR China.
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