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Ni CS, Zhang WJ, Bi WZ, Wu MX, Feng SX, Chen XL, Qu LB. Facile synthesis of N-doped graphene quantum dots as a fluorescent sensor for Cr(vi) and folic acid detection. RSC Adv 2024; 14:26667-26673. [PMID: 39175673 PMCID: PMC11340008 DOI: 10.1039/d4ra05016a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Accepted: 08/19/2024] [Indexed: 08/24/2024] Open
Abstract
The development of stable fluorescent sensors for toxic pollutants and drugs is meaningful to the environment and public health. In this work, nitrogen-doped graphene quantum dots (N-GQDs) were facially synthesized by a one-step hydrothermal method using soluble starch and l-arginine as carbon and nitrogen sources in pure water at 190 °C for 4 h. The as-synthesized N-GQDs were well characterized and displayed blue fluorescence emission at 445 nm with excellent pH stability, salt tolerance, thermostability, photobleaching resistance and reproducibility. Moreover, N-GQDs could serve as an "on-off" sensor for selective detection of Cr(vi) and folic acid with low detection limit (0.80 and 2.1 μM), good linear correlation over wide linear range (0-50 μM and 0-200 μM) as well as short response time (<10 s). The practical applications of N-GQDs for Cr(vi) and folic acid detection in actual samples were further investigated and showed acceptable recoveries (92-105%) with relative standard deviations less than 5%. These results indicated that this N-GQDs-based sensor could be a potential alternative for Cr(vi) and folic acid detection in the fields of environmental monitoring and drug analysis.
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Affiliation(s)
- Chu-Sen Ni
- School of Pharmacy, Henan University of Chinese Medicine Zhengzhou 450046 China
| | - Wen-Jie Zhang
- School of Pharmacy, Henan University of Chinese Medicine Zhengzhou 450046 China
| | - Wen-Zhu Bi
- School of Pharmacy, Henan University of Chinese Medicine Zhengzhou 450046 China
- Henan Engineering Research Center of Modern Chinese Medicine Research, Development and Application Zhengzhou 450046 China
| | - Ming-Xia Wu
- School of Pharmacy, Henan University of Chinese Medicine Zhengzhou 450046 China
- Henan Engineering Research Center of Modern Chinese Medicine Research, Development and Application Zhengzhou 450046 China
| | - Su-Xiang Feng
- Henan Engineering Research Center of Modern Chinese Medicine Research, Development and Application Zhengzhou 450046 China
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine Zhengzhou 450046 China
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases co-constructed by Henan Province & Education Ministry of P. R. China Zhengzhou 450046 China
| | - Xiao-Lan Chen
- College of Chemistry, Zhengzhou University Zhengzhou 450001 China
| | - Ling-Bo Qu
- College of Chemistry, Zhengzhou University Zhengzhou 450001 China
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2
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Gao P, Zhong W, Li T, Liu W, Zhou L. Room temperature, ultrafast and one-step synthesis of highly fluorescent sulfur quantum dots probe and their logic gate operation. J Colloid Interface Sci 2024; 666:221-231. [PMID: 38598995 DOI: 10.1016/j.jcis.2024.04.033] [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: 01/28/2024] [Revised: 03/12/2024] [Accepted: 04/04/2024] [Indexed: 04/12/2024]
Abstract
The direct and rapid conversion of abundant and cheap elemental sulfur into fluorescent sulfur quantum dots (SQDs) at room temperature is a critical and urgent challenge. Conventional synthesis methods require high temperatures, high pressures, or specific atmospheric conditions, making them complex and impractical for real applications. Herein, we propose a simple method for synthesizing SQDs simply by adding H2O2 to an elemental sulfur-ethylenediamine (S-EDA) solution at room temperature. Remarkably, within a mere 10 min, SQDs with a photoluminescence quantum yield of 23.6 % can be obtained without the need for additional steps. A comprehensive analysis of the mechanism has demonstrated that H2O2 is capable of converting Sx2- ions generated in the S-EDA solution into zero-valent sulfur atoms through oxidation. The obtained SQDs can be utilized as a fluorescent probe for detection of tetracycline (TC) and Ca2+ ions with the limit of detection (LOD) of 0.137 μM and 0.386 μM respectively. Moreover, we have developed a sensitive logic gate sensor based on SQDs, harnessing the activated cascade effect to create an intelligent probe for monitoring trace levels of TC and Ca2+ ions. This paper not only presents a viable approach for ultrafast and scalable synthesis of SQDs at room temperature, but also contributes to the efficient utilization of elemental sulfur resources.
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Affiliation(s)
- Pengxiang Gao
- Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Weiheng Zhong
- Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Tengbao Li
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, Guangxi Colleges and Universities Key Laboratory of Natural and Biomedical Polymer Materials, and College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Weizhen Liu
- Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - Li Zhou
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, Guangxi Colleges and Universities Key Laboratory of Natural and Biomedical Polymer Materials, and College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China.
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3
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Lang B, Ma W, Liao X, Duan Y, Ren C, Chen H. Modifying carbon dots with L-phenylalanine for rapid discrimination of tryptophan enantiomers. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3907-3916. [PMID: 38829128 DOI: 10.1039/d4ay00484a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
New chiral carbon dots (CDs), L-PCDs, for discriminating tryptophan (Trp) enantiomers were prepared in this work. Firstly, original CDs were synthesized through a hydrothermal method using pyridine-2,6-dicarboxylic acid and o-phenylenediamine as raw materials. Then, the surface of original CDs was modified with L-phenylalanine to create chiral fluorescent carbon L-PCDs. In the presence of D-Trp, the fluorescence intensity of L-PCDs decreased significantly while it remained unchanged in the presence of L-Trp. The chiral sensing system used in this study has a rapid response time of 3 minutes and can identify enantiomers with an enantioselectivity (ID/IL) of up to 3.3. For D-Trp, a good linear relationship can be obtained in the range of 0.3-4.2 mM with a limit of detection of 0.06 mM. This sensor allows for both quantitative detection of D-Trp and determination of enantiomeric percentage in the racemate. The chiral recognition mechanism is attributed to the different interaction between D-/L-Trp and L-PCDs.
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Affiliation(s)
- Bozhi Lang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Wenming Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Xuan Liao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Yaning Duan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Cuiling Ren
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
- Key Laboratory of Special Function Materials and Structure Design (MOE), Lanzhou University, Lanzhou 730000, China
| | - Hongli Chen
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
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4
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Huang J, Zhang M, Huang J, Deng X, Zhang X, Miao C, Weng S. Detection of Doxycycline Using Carbon Quantum dots as Probe Based on Internal Filtering Effect. J Fluoresc 2024; 34:1353-1363. [PMID: 37530930 DOI: 10.1007/s10895-023-03373-2] [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: 06/19/2023] [Accepted: 07/25/2023] [Indexed: 08/03/2023]
Abstract
The establishment of a convenient and effective detection method for doxycycline (DC) holds significant importance in drug monitoring and drug residue assessment. In this work, carbon quantum dots (CQDs) with excellent and stable luminescence performance (the quantum yield of CQDs was 21.8%) were synthesized by the melting method and employed as probes to monitor the fluorescence intensity variations before and after the introduction of DC. A fluorescence analytical method based on the internal filtration effect (IFE) was developed for DC determination. The mechanism of DC quenching CQDs was verified using fluorescence lifetime tests, absorption spectroscopy, and evaluation of internal filtration parameters. After optimizing experimental conditions, it was found that the DC concentration (CDC) exhibited a good linear relationship with the fluorescence quenching efficiency ((F0-F)/F0) of CQDs in the range of 5-30 µM. The fitted linear equation was Y = 0.01249*CDC+0.03625, R2 = 0.9987, and the detection limit was 2.343 µM (n = 8). This developed method has been successfully applied to accurately determine DC concentrations in both doxycycline hydrochloride tablets and human serum samples. It stands out for its simplicity, rapidity, and acceptable detection performance. Due to its advantages, this method holds great promise for application in the biomedical field for monitoring DC drug concentrations and ensuring quality control.
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Affiliation(s)
- Jianhou Huang
- Department of Pharmacy, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, 362000, China
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Menghan Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Jiyue Huang
- Department of Pharmacy, the 900th Hospital of China Joint Logistics Support Force, Fuzhou, 350025, China
| | - Xiaoqin Deng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Xintian Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Chenfang Miao
- Department of Pharmacy, the 900th Hospital of China Joint Logistics Support Force, Fuzhou, 350025, China.
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
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5
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Li X, Wu J, Zhu X. Multi-component determination based on high quantum yield "on-off-on" carbon quantum dots sensor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 307:123662. [PMID: 37984116 DOI: 10.1016/j.saa.2023.123662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/11/2023] [Accepted: 11/14/2023] [Indexed: 11/22/2023]
Abstract
The nitrogen(N)-sulfur(S)-sodium(Na(I)) co-doped carbon quantum dots (CQDs) were synthesized via a one-step hydrothermal method, which exhibited a remarkably high fluorescence quantum yield (24.58%) and exceptional optical properties. The fluorescence "on-off-on" sensor was constructed. The fluorescence of CQDs was rapidly quenched with Fe(III) and the fluorescence recovered by ascorbic acid (Asc) partially and arginine (Arg)/histidine (His) completely. The CQDs fluorescence sensor demonstrated rapid response, exceptional sensitivity, excellent stability, remarkable selectivity, and robust anti-interference performance, which was feasible to simultaneously determine the concentrations of multiple analytes in the sample with satisfactory recovery rates. The "on-off-on" fluorescence mechanism of CQDs was investigated, revealing the significant potential of carbon nano-functionalized materials in the field of drug detection through fluorescence sensing.
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Affiliation(s)
- Xiang Li
- College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou 225002, China
| | - Jun Wu
- College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou 225002, China
| | - Xiashi Zhu
- College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou 225002, China.
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6
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Luo Q, Liu H, Li D, Dai J, Xia L, Jiang J, Xu Y, Zeng B, Luo W, Dai L. Carboxymethylcellulose hydrogels with stable carbon quantum dots: Enabling dynamic fluorescence modulation, automatic erasure, and secure information encryption. Carbohydr Polym 2024; 326:121610. [PMID: 38142072 DOI: 10.1016/j.carbpol.2023.121610] [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: 08/07/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/25/2023]
Abstract
Inspired by "disappear after reading", a time-modulated encryption hydrogel was synthesized by carboxymethyl cellulose with carbon quantum dots. Carboxymethyl cellulose in this system stabilized carbon quantum dots, which ensured the whole hydrogel worked well. The encryption/decryption of information depended on pH adjustment, application of EDTA and Cr (VI). Furthermore, an in-depth analysis of the fluorescence change mechanism uncovered that fluorescence quenching was potentially influenced by internal filtering effects and static quenching, which involved the amino, carboxyl, and hydroxyl groups present within the hydrogel.
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Affiliation(s)
- Qiuyan Luo
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
| | - Hao Liu
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
| | - Dongxu Li
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
| | - Juguo Dai
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
| | - Long Xia
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
| | - Jia Jiang
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
| | - Yiting Xu
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China.
| | - Birong Zeng
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
| | - Weiang Luo
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
| | - Lizong Dai
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China.
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7
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Gan M, Wang Y, Wang F, Tan J, Pei Y, Wang J, Choi MMF, Bian W. Fluorescent sensing platform based on polyethyleneimine-protected copper nanoclusters for detection of chromium(VI) in real samples. LUMINESCENCE 2024; 39:e4689. [PMID: 38361140 DOI: 10.1002/bio.4689] [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: 09/16/2023] [Revised: 12/27/2023] [Accepted: 01/19/2024] [Indexed: 02/17/2024]
Abstract
A new type of polyethyleneimine-protected copper nanoclusters (PEI-CuNCs) is favorably developed by a one-pot method under mild conditions. The obtained PEI-CuNCs is characterized by X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, Fourier-transform infrared (FTIR) spectroscopy and other techniques. It is worth noting that the proposed PEI-CuNCs demonstrate a selective response to chromium(VI) over other competitive species. Fluorescence quenching of PEI-CuNCs is determined to be chromium(VI) concentrations dependence with a low limit of detection of 8.9 nM. What is more, the as-developed PEI-CuNCs is further employed in building a detection platform for portable recognition of chromium(VI) in real samples with good accuracy. These findings may offer a distinctive strategy for the development of methods for analyzing and monitoring chromium(VI) and expand their application in real sample monitoring.
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Affiliation(s)
- Mingyu Gan
- Department of Basic Medicine, Shanxi Medical University, Taiyuan, China
| | - Yingqi Wang
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Fei Wang
- Gastroenterology, Lvliang People's Hospital, Lvliang, China
| | - Jie Tan
- Department of Traditional Chinese Medicine, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Yuheng Pei
- Department of Neurology, Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Jianhua Wang
- Department of Basic Medicine, Shanxi Medical University, Taiyuan, China
| | - Martin M F Choi
- Bristol Chinese Christian Church, c/o Tyndale Baptist Church, Bristol, UK
| | - Wei Bian
- Department of Basic Medicine, Shanxi Medical University, Taiyuan, China
- Ministry of Education, Key Laboratory of Cellular Physiology at Shanxi Medical University, Taiyuan, China
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8
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Zhao W, Zhang M, Zhang L, Deng X, Wang Y, Chen Y, Weng S. Carbon Dots with Antioxidant Capacity for Detecting Glucose by Fluorescence and Repairing High-Glucose Damaged Glial Cells. J Fluoresc 2024:10.1007/s10895-024-03599-8. [PMID: 38300482 DOI: 10.1007/s10895-024-03599-8] [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: 12/05/2023] [Accepted: 01/23/2024] [Indexed: 02/02/2024]
Abstract
Diabetic mellitus management extends beyond blood glucose monitoring to the essential task of mitigating the overexpression of reactive oxygen species (ROS), particularly vital for cellular repair, especially within the nervous system. Herein, antioxidant carbon dots (Arg-CDs) were designed and prepared using anhydrous citric acid, L-arginine, and ethylenediamine as sources through a hydrothermal method. Arg-CDs exhibited excellent scavenging ability to 2,2-Diphenyl-1-picrylhydrazyl (DPPH∙), and fluorescence response to hydroxyl radicals (∙OH), a characteristic representative of reactive oxygen species (ROS). Assisted by glucose oxidase and Fe2+, Arg-CDs showed a sensitive and selective response to glucose. The quenching mechanism of Arg-CDs by formed ∙OH was based on the static quenching effect (SQE). The analytical performance of this method for glucose detection encompassed a wide linear range (0.3-15 μM), a low practical limit of detection (0.1 μM) and practical applicability for blood glucose monitoring. In an in vitro model employing glial cells (BV2 cells), it was observed that high glucose medium led to notable cellular damage ascribed to the excessive ROS production from hyperglycemia. The diminished and apoptotic glial cells were gradually recovered by adding increased contents of Arg-CDs. This work illustrates a promising area that designs effective carbon dots with antioxidant capacity for the dual applications of detection and cell repairing based on the utilization of antioxidant activity.
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Affiliation(s)
- Wenlong Zhao
- Department of Neurology, Institute of Neurology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, China
| | - Menghan Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Liang Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
- Department of Pharmacy, Fujian Provincial Geriatric Hospital, Teaching Hospital of Fujian Medical University, Fuzhou, 350003, China
| | - Xiaoqin Deng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Yao Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Yiping Chen
- Department of Interventional Radiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, China.
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China.
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9
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Wu Y, Zuo C, Mou Y, Wang H, Hou Y, Su X, Jia Z, Qiu H. One step synthesis of highly photoluminescent red light-emitting carbon dots from O-phenylenediamine and 2,4-diaminophenol as fluorescent probes for the detection of pH and Cr(VI). ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:5607-5619. [PMID: 37850478 DOI: 10.1039/d3ay01323e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
In this study, new red light-emitting carbon dots (R-CDs) that can selectively recognize Cr(VI) were prepared using a strategy that utilizes 2,4-diaminophenol to enhance the fluorescence of O-phenylenediamine based carbon dots. The results showed that 2,4-diaminophenol increased the quantum yield (QY) of the carbon quantum dots (CDs), and that the QY of the CDs increased from their original value of 8.7% to 20.1% (R-CDs). The R-CDs show sensitivity to acidic conditions and maintain good linearity between pH = 1.00-4.00, making them useful as pH probes. Furthermore, the prepared R-CDs possess good solubility in water and are responsive to changes in Cr(VI) concentrations in aqueous environments. The quenching of the R-CDs fluorescence was linearly correlated with the Cr(VI) concentration within a range of 0-20 μM, with a lower detection limit of 66 nM. The detection mechanism is attributed to the formation of hydrogen bonds between Cr(VI) and the R-CDs, resulting in the fluorescence quenching of the R-CDs. The R-CDs can be considered effective multifunctional fluorescent probes for both pH and Cr(VI) in aqueous environments. This study will provide new R-CD design strategies for probes that selectively identify specific target substances.
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Affiliation(s)
- Yan Wu
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Chengwei Zuo
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Yujie Mou
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Hao Wang
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Yongrui Hou
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Xiaodong Su
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Zhenfu Jia
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Huidong Qiu
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
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Zhang J, Wang J, Ouyang F, Zheng Z, Huang X, Zhang H, He D, He S, Wei H, Yu CY. A smartphone-integrated portable platform based on polychromatic ratiometric fluorescent paper sensors for visual quantitative determination of norfloxacin. Anal Chim Acta 2023; 1279:341837. [PMID: 37827652 DOI: 10.1016/j.aca.2023.341837] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 10/14/2023]
Abstract
The emergence of "superbugs" due to antibiotics overuse poses a significant threat to human health and security. The development of sensitive and effective antibiotics detection is undoubtedly a prerequisite for addressing antibiotics overuse-associated issues. However, current techniques for monitoring antibiotics typically require costly equipment and well-trained professionals. Hence, we developed herein a rapid, instrument-free, and on-site detection method for antibiotic residues such as norfloxacin (NOR) based on a ratiometric sensing platform utilizing "on-off-on" response properties of polychromatic fluorescence for direct visual quantitative NOR analysis. Specifically, this platform integrated iron ions (Fe3+)-chelated blue carbon dots (BCDs) for signal sensing and red carbon dots (RCDs) as an internal reference. The sensor mechanism is selective quenching of BCDs' blue fluorescence by Fe3+ via an inner filter effect with unaffected RCDs' red fluorescence. Further NOR addition led to competitive binding with BCDs due to Fe3+ shedding from the BCDs' surface for a recovered blue fluorescence signal. Notably, the ratiometric fluorescence sensor demonstrated rapid and highly sensitive NOR detection in a concentration range of 1-70 μM with an impressive detection limit of 6.84 nM. The ratiometric fluorescence sensing platform was constructed by integrating smartphone and paper-based strategies, which exhibited exceptional sensitivity, selectivity, and rapid response for portable, instrument-free, visual quantification of NOR in real samples.
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Affiliation(s)
- Jiaheng Zhang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Jun Wang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Feijun Ouyang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Zhi Zheng
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Xiaowan Huang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Haitao Zhang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Dongxiu He
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Suisui He
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
| | - Hua Wei
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
| | - Cui-Yun Yu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
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11
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Miao C, Zhou X, Huang X, Huang J, Chen Y, Liu Y, Hu X, Zeng L, Weng S, Chen H. Effectively synthesized functional Si-doped carbon dots with the applications in tyrosinase detection and lysosomal imaging. Anal Chim Acta 2023; 1279:341789. [PMID: 37827683 DOI: 10.1016/j.aca.2023.341789] [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: 08/27/2023] [Accepted: 09/06/2023] [Indexed: 10/14/2023]
Abstract
There has been significant interest in the preparation and versatile applications of carbon dots (CDs) due to their immense potential value in sensors and imaging. In this work, silicon-doped green carbon dots (Si-CDs) with high quantum yield and rich epoxypropyl were effectively synthesized. Given the clinical diagnostic importance of abnormal levels of tyrosinase (TYR), sensitive detection of TYR is significant for clinical research. A fluorescence signal-off strategy with Si-CDs as probe was constructed to determine TYR based on the oxidation of dopamine by TYR. The detection ranges of this method were 0.01-1.5 and 10-30 U/mL with the detection limit of 0.0046 U/mL, the lower limit of quantification (LLOQ) was 0.01 U/mL, and TYR was successfully and accurately monitored in human serum. Additionally, due to the role of lysosomes in cellular regulatory processes, including TYR levels and fluorescence stability characteristics of Si-CDs in acidic conditions, it was envisaged to use Si-CDs as probe to establish real-time monitoring of lysosomes. According to fluorescence colocation analysis, Si-CDs had intrinsic lysosomal targeting ability to HepG2 and L-02 (with Pearson correlation coefficients were 0.90 and 0.91, respectively). The targeting of Si-CDs to lysosomes was due to the acidophilic effect of the epoxypropyl on its surface.
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Affiliation(s)
- Chenfang Miao
- Department of Pharmacy, The 900th Hospital of Joint Logistics Team of the PLA, Fuzhou General Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China; Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Xin Zhou
- Department of Pharmacy, The 900th Hospital of Joint Logistics Team of the PLA, Fuzhou General Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China
| | - Xiaoyang Huang
- Department of Pharmacy, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital South Branch, Fuzhou, 350001, China; Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Jiyue Huang
- Department of Pharmacy, The 900th Hospital of Joint Logistics Team of the PLA, Fuzhou General Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China
| | - Yanping Chen
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Yuebin Liu
- Department of Pharmacy, The 900th Hospital of Joint Logistics Team of the PLA, Fuzhou General Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China
| | - Xiaomu Hu
- Department of Pharmacy, The 900th Hospital of Joint Logistics Team of the PLA, Fuzhou General Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China
| | - Lingjun Zeng
- Department of Pharmacy, The 900th Hospital of Joint Logistics Team of the PLA, Fuzhou General Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China.
| | - Huixing Chen
- Department of Hepatobiliary Surgery and Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fujian Medical University Cancer Center, Fuzhou, 350001, China.
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12
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Wu M, Li J, Wu Y, Gong X, Wu M. Design of a Synthetic Strategy to Achieve Enhanced Fluorescent Carbon Dots with Sulfur and Nitrogen Codoping and Its Multifunctional Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302764. [PMID: 37330653 DOI: 10.1002/smll.202302764] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 06/07/2023] [Indexed: 06/19/2023]
Abstract
Here, a rational strategy to achieve multifunctional N, S codoped carbon dots (N, S-CDs) is reported, aiming to improve the photoluminescence quantum yields (PLQYs) of the CDs. The synthesized N, S-CDs have excellent stability and emission properties independent of excitation wavelength. Through the introduction of S element doping, the fluorescence emission of CDs is red-shifted from 430 to 545 nm, and the corresponding PLQYs can be greatly enhanced from 11.2% to 65.1%. It is found that the doping of S elements causes an increase in the size of CDs and an elevated graphite N content, which may be the key factors to cause the redshift of fluorescence emission. Furthermore, the introduction of S element also serves to suppress the nonradiative transitions, which may be responsible for the elevated PLQYs. Besides, the synthesized N, S-CDs have certain solvent effect and can be applied to detect water content in organic solvents, and have strong sensitivity to alkaline environment. More importantly, the N, S-CDs can be used to achieve an "on-off-on" dual detection mode between Zr4+ and NO2 - . In addition, N, S-CDs combinedwith polyvinylpyrrolidone (PVP) can also be utilized as fluorescent inks for anti-counterfeiting applications.
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Affiliation(s)
- Mengyi Wu
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Jiurong Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Yongzhong Wu
- School of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Xiao Gong
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Min Wu
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular lmaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
- Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, 610041, P. R. China
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13
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Xu X, Li H, Sun Y, Ma T, Shi L, Mu W, Wang H, Lu Y. Novel "on-off" fluorescence sensing for rapid and accurate determination of Cr 3+ based on g-CNQDs. RSC Adv 2023; 13:28550-28559. [PMID: 37780737 PMCID: PMC10534202 DOI: 10.1039/d3ra05091b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 09/14/2023] [Indexed: 10/03/2023] Open
Abstract
Cr3+ is one of the most essential trace elements in living organisms and plays a vital role in human metabolism. However, both deficiency and excess intake of Cr3+ can be harmful to the human body. Therefore, the quantitative determination of Cr3+ is of great significance in the field of life science. Based on this, in this study, a g-CNQDs@p-acetaminophenol fluorescence sensing system was developed for the quantitative detection of Cr3+ in actual complex samples. G-CNQDs were synthesized with sodium citrate and urea as precursors. The fluorescence signal was enhanced by the synergistic effect between p-acetaminophenol (APAP) and g-CNQDs. The fluorescence quenching phenomenon can be produced when Cr3+ is introduced into the fluorescence-enhanced g-CNQDs@p-acetaminophenol system. An "on-off" fluorescence sensing system was constructed based on g-CNQDs@p-acetaminophenol for the quantitative detection of Cr3+. The experimental data showed a wide linear region in the concentration range of 0.64-63.0 μM, and the detection limit was as low as 0.23 μM. The construction of the sensor system broadens the research field for the practical application of Cr3+.
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Affiliation(s)
- Xiaohua Xu
- Modern Tibetan Medicine Creation Engineering Technology Research Center of Qinghai Province, College of Pharmacy, Qinghai Nationalities University Xining 810007 China
| | - Huye Li
- The Fourth People's Hospital of Qinghai Province Xining 810007 China
| | - Yapeng Sun
- No. 2 Middle School in Xining City Xining 810007 Qinghai Province China
| | - Tianfeng Ma
- Modern Tibetan Medicine Creation Engineering Technology Research Center of Qinghai Province, College of Pharmacy, Qinghai Nationalities University Xining 810007 China
| | - Lin Shi
- Modern Tibetan Medicine Creation Engineering Technology Research Center of Qinghai Province, College of Pharmacy, Qinghai Nationalities University Xining 810007 China
| | - Wencheng Mu
- Modern Tibetan Medicine Creation Engineering Technology Research Center of Qinghai Province, College of Pharmacy, Qinghai Nationalities University Xining 810007 China
| | - Huan Wang
- Modern Tibetan Medicine Creation Engineering Technology Research Center of Qinghai Province, College of Pharmacy, Qinghai Nationalities University Xining 810007 China
| | - Yongchang Lu
- Modern Tibetan Medicine Creation Engineering Technology Research Center of Qinghai Province, College of Pharmacy, Qinghai Nationalities University Xining 810007 China
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14
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Hu S, Xu M, Cui Z, Xiao Y, Liu C, Liu R, Zhang G. Probing the molecular mechanism of interaction between polystyrene nanoplastics and catalase by multispectroscopic techniques. Chem Biol Interact 2023; 382:110648. [PMID: 37495201 DOI: 10.1016/j.cbi.2023.110648] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/17/2023] [Accepted: 07/24/2023] [Indexed: 07/28/2023]
Abstract
Nanoplastics are emerging pollutants that pose a potential threat to the environment and organisms and are widely distributed in environmental samples and food chains. The accumulation of polystyrene nanoplastics (PS-NPs) in an organism can cause oxidative stress. Currently, toxicity studies of PS-NPs mainly focus on the individual and cellular levels, whereas few studies have been conducted on the molecular mechanisms of the interaction between PS-NPs and catalase (CAT). Based on this, CAT was chosen as the target receptor for molecular toxicity research to reveal the interaction mechanism at the molecular level between PS-NPs and CAT by using various spectroscopic means and enzyme activity detection methods. The results indicated that PS-NPs destroyed the secondary structure of CAT, causing its protein skeleton to loosen and unfold, increasing the content of α-helices, decreasing the content of β-sheets, and exposing the position of the heme group. After exposure to PS-NPs, the internal fluorophore of CAT underwent fluorescence sensitization, resulting in a micelle-like structure, which enhanced the hydrophobicity of aromatic amino acids but did not change their polarity. In addition, the aggregation state of CAT was altered upon binding to PS-NPs, and the volume was further increased. Finally, these structural changes led to a gradual decrease in CAT activity. This study presents a comprehensive assessment of the toxicity of PS-NPs at the molecular level, which can provide more experimental support for the study of the biotoxicological efficacy of PS-NPs.
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Affiliation(s)
- Shuncheng Hu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, PR China
| | - Mengchen Xu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, PR China.
| | - Zhaohao Cui
- Qingdao Ecological Environment Monitoring Center, Qingdao, 266003, PR China
| | - Yihua Xiao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, PR China
| | - Changqing Liu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Guomin Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, PR China
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15
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Zhao L, Chen H, Tang Y, Li P, Zhu X, Liu J, Liu M, Zhang Y, Yao S. Ag 2S QDs integration with MnO 2 nanosheets for the sensitive detection of Cr (VI) via the redox reaction induced photoelectrochemical variation. Anal Chim Acta 2023; 1270:341471. [PMID: 37311614 DOI: 10.1016/j.aca.2023.341471] [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: 03/30/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 06/15/2023]
Abstract
The heavy metal Cr (VI) will remain, accumulate, and migrate after entering the environment or ecosystem, causing serious harm to the environment. Here, a photoelectrochemical sensor was developed for Cr (VI), utilizing the Ag2S quantum dots (QDs) and MnO2 nanosheets as photoactive components. By introducing Ag2S QDs with a narrow gap, a staggered energy level match is created which effectively prevents the carrier recombination in MnO2 nanosheets, resulting in an enhanced photocurrent response. In the presence of the electron donor, l-ascorbic acid (AA), the photocurrent of the Ag2S QDs and MnO2 nanosheets modified photoelectrode is further enhanced. As AA has the ability to convert Cr (VI) to Cr (Ⅲ), the photocurrent may decline due to the decrease in the electron donors when Cr (VI) is added. This phenomenon can be utilized for the sensitive detection of Cr (VI) over a wider linear range (100 pM-30 μM) with a lower detection limit of 6.46 pM (S/N = 3). This work using the strategy that the targets induced the variations of the electron donor shows the advantages of good sensitivity and nice selectivity. The sensor holds many advantages such as simple fabrication process, economical material expense, and consistent photocurrent signals. It also holds significant potential for environmental monitoring and serves as a practical photoelectric sensing approach for detecting Cr (VI).
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Affiliation(s)
- Lili Zhao
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Haoyu Chen
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Ying Tang
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Peipei Li
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Xiaohua Zhu
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Jingyi Liu
- State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, PR China
| | - Meiling Liu
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China.
| | - Youyu Zhang
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
| | - Shouzhuo Yao
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China
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16
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Lin SQ, Jia BZ, Luo W, Wang H, Lei HT, Zhang WF, Xu ZL, Luo L. Controllable formation of polydopamine on carbon dots for ultrasensitive detection of alkaline phosphatase and ratiometric fluorescence immunoassay of benzocaine. Food Chem 2023; 426:136582. [PMID: 37321117 DOI: 10.1016/j.foodchem.2023.136582] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/17/2023]
Abstract
Sensing alkaline phosphatase (ALP) activity with high sensitivity and accuracy is critical for both ALP-related health and food safety supervision and the development of ALP-triggered immunoassay platforms. Herein, an ultrasensitive ratiometric fluorescence (RF) sensing system based on the controllable formation of luminescent polydopamine and efficient quenching of carbon dots was proposed for the ALP activity assay, achieving quantitative detection in the range of 0.01-100 mU/L. Furthermore, this RF sensing system was integrated with an ALP-based ELISA platform to construct an RF-ELISA for benzocaine, a potentially abused anesthetic in edible fish, and ultrasensitive assay at the level of fg/mL was realized. This ratiometric strategy-based platform effectively shields various interferences through the self-calibration effect, thus providing more accurate and reliable quantification results. This study not only offers an efficient method for ultratrace detection of ALP and benzocaine but also proposes a universal platform for ultrasensitive detection of diverse targets in food analysis by replacing the recognition unit.
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Affiliation(s)
- Shi-Qi Lin
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center of Rapid Testing Instrument for Food Nutrition and Safety, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China
| | - Bao-Zhu Jia
- College of Biology and Food Engineering, Guangdong University of Education, Guangzhou 510303, China
| | - Wei Luo
- State Key Laboratory of Livestock and Poultry Breeding & Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Hong Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Hong-Tao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Wen-Feng Zhang
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center of Rapid Testing Instrument for Food Nutrition and Safety, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China.
| | - Zhen-Lin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China.
| | - Lin Luo
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China.
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17
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Chen Q, Wu C, Wang S, Wang Q, Wu P, Wang L, Yan P, Xie Y. Glycyrrhizic acid modified Poria cocos polyscaccharide carbon dots dissolving microneedles for methotrexate delivery to treat rheumatoid arthritis. Front Chem 2023; 11:1181159. [PMID: 37288078 PMCID: PMC10243470 DOI: 10.3389/fchem.2023.1181159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 04/26/2023] [Indexed: 06/09/2023] Open
Abstract
Introduction: Rheumatoid arthritis is an autoimmune disease characterized by chronic joint inflammation. Methotrexate is one of the most effective drugs for rheumatoid arthritis, but the adverse reactions caused by oral methotrexate greatly limit its clinical application. Transdermal drug delivery system is an ideal alternative to oral methotrexate by absorbing drugs into the human body through the skin. However, methotrexate in the existing methotrexate microneedles is mostly used alone, and there are few reports of combined use with other anti-inflammatory drugs. Methods: In this study, glycyrrhizic acid was first modified onto carbon dots, and then methotrexate was loaded to construct a nano-drug delivery system with fluorescence and dual anti-inflammatory effects. Then hyaluronic acid was combined with nano-drug delivery system to prepare biodegradable soluble microneedles for transdermal drug delivery of rheumatoid arthritis. The prepared nano-drug delivery system was characterized by transmission electron microscopy, fluorescence spectroscopy, laser nanoparticle size analyzer, ultraviolet-visible absorption spectroscopy, Fourier transform infrared spectroscopy, differential scanning calorimeter and nuclear magnetic resonance spectrometer. The results showed that glycyrrhizic acid and methotrexate were successfully loaded on carbon dots, and the drug loading of methotrexate was 49.09%. The inflammatory cell model was constructed by lipopolysaccharide-induced RAW264.7 cells. In vitro cell experiments were used to explore the inhibitory effect of the constructed nano-drug delivery system on the secretion of inflammatory factors by macrophages and the cell imaging ability. The drug loading, skin penetration ability, in vitro transdermal delivery and in vivo dissolution characteristics of the prepared microneedles were investigated. The rat model of rheumatoid arthritis was induced by Freund's complete adjuvant. Results: The results of in vivo animal experiments showed that the soluble microneedles of the nano drug delivery system designed and prepared in this study could significantly inhibit the secretion of pro-inflammatory cytokines and had a significant therapeutic effect on arthritis. Discussion: The prepared glycyrrhizic acid-carbon dots-methotrexate soluble microneedle provides a feasible solution for the treatment of Rheumatoid arthritis.
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Affiliation(s)
- Qi Chen
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macao, China
| | - Chengyuan Wu
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Siwei Wang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Qiang Wang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Peiyun Wu
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Lei Wang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Peiyu Yan
- Macau University of Science and Technology, Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macao, China
| | - Ying Xie
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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18
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Zhou Y, Liu M, Liu X, Jiang R, He Y, Yao Q, Chen H, Fu C. Rapid and sensitifve fluorescence determination of oxytocin using nitrogen-doped carbon dots as fluorophores. J Pharm Biomed Anal 2023; 229:115344. [PMID: 36966622 DOI: 10.1016/j.jpba.2023.115344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/28/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
In this work, a novel nitrogen (N)-doped carbon dots (N-CDs) was prepared with quercetin as the carbon source and o-phenylenediamine as the nitrogen source by hydrothermal synthesis, and their application as fluorophores for selective and sensitive determination of oxytocin were reported. The fluorescence quantum yield of the as-prepared N-CDs, which exhibited good water solubility and photostability, was about 6.45 % using rhodamine 6 G as reference substance, and the maximum excitation (Ex) and emission (Em) wavelength were 460 nm and 542 nm, respectively. The results illustrated that the direct fluorescence quenching of N-CDs fluorophore for the detection of oxytocin achieved good linearity in the range of 0.2-5.0 IU/mL and 5.0-10.0 IU/mL, the correlation coefficients were 0.9954 and 0.9909, respectively, and the detection limit was 0.0196 IU/mL (S/N = 3). The recovery rates were 98.8∼103.8 % with RSD= 0.93 %. The interference experiments showed that common metal ions, possible impurities introduced in production and coexisting excipients in the preparation had little adverse influence on selective detection of oxytocin by the developed N-CDs based fluorescent detection method. The mechanism study on the fluorescence quenching of N-CDs by oxytocin concentrations under the given experimental conditions demonstrated that there were internal filtration effect and static quenching in the system. The developed fluorescence analysis platform for the detection of oxytocin had been proved to be rapid, sensitive, specific and accurate, and to be used for the quality inspection of oxytocin.
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19
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High fluorescent nitrogen−doped carbon dots derived from Sanghuangporus lonicericola for detecting tetracyclines in aquaculture water and rat serum samples. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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20
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Singh S, Kumar Naik TSS, Chauhan V, Shehata N, Kaur H, Dhanjal DS, Marcelino LA, Bhati S, Subramanian S, Singh J, Ramamurthy PC. Ecological effects, remediation, distribution, and sensing techniques of chromium. CHEMOSPHERE 2022; 307:135804. [PMID: 35932914 DOI: 10.1016/j.chemosphere.2022.135804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 07/16/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Chromium is detected in most ecosystems due to the increased anthropogenic activities in addition to that developed from natural pollution. Chromium contamination in the food chain results due to its persistent and non-degradable nature. The release of chromium in the ecosystem accretes and thereafter impacts different life forms, including humans, aquatic and terrestrial organisms. Leaching of chromium into the ground and surface water triggers several health ailments, such as dermatitis, eczematous skin, allergic reactions, mucous and skin membrane ulcerations, allergic asthmatic reactions, bronchial carcinoma and gastroenteritis. Physiological and biological treatments for the removal of chromium have been discussed in depth in the present communication. Adsorption and biological treatment methods are proven to be alternatives to chemical removal techniques in terms of cost-effectiveness and low sludge formation. Chromium sensing is an alternative approach for regular monitoring of chromium in different water bodies. This review intended to explore different classes of sensors for chromium monitoring. However, the spectrochemical methods are more sensitive in chromium ions sensing than electrochemical methods. Future study should focus on miniaturization for portability and on-site measurements without requiring a large instrument provides a good aspect for future research.
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Affiliation(s)
- Simranjeet Singh
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India
| | - T S Sunil Kumar Naik
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, India
| | - Vishakha Chauhan
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India
| | - Nabila Shehata
- Environmental Science and Industrial Development Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef, Egypt
| | - Harry Kaur
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Roorkee, India
| | - Daljeet Singh Dhanjal
- Department of Microbiology, Lovely Professional University, Phagwara, 144411, Punjab, India
| | - Liliana Aguilar Marcelino
- Centro Nacional de Investigación Disciplinariaen Salud Animal e Inocuidad, INIFAP, Jiutepec, Morelos, C.P, 62550, Mexico
| | - Shipra Bhati
- Department of Chemistry, The Oxford College of Engineering, Bangalore, Karnataka, 560068, India
| | - S Subramanian
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, India
| | - Joginder Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Roorkee, India.
| | - Praveen C Ramamurthy
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India.
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21
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Green carbon dots synthesized from Chlorella Sorokiniana microalgae biochar for chrome detection. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.09.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Liu S, Shi Y, Li X, Wang Z. Humic Acids Affect the Detection of Metal Ions by Cyanobacteria Carbon Quantum Dots Differently. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10225. [PMID: 36011858 PMCID: PMC9408800 DOI: 10.3390/ijerph191610225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
A "top-down" synthesis of carbon quantum dots (CQDs), novel fluorescent C materials from waste biomass, is both cost-effective and environmentally friendly. N-rich cyanobacteria are promising precursors to produce CQDs with high fluorescence (FL) intensity for the detection of metal ions. Herein, we synthesized cyanobacteria-based CQDs using a hydrothermal process and evidenced their high FL intensity and stability. The cyanobacteria-based CQDs showed powerful sensitivity for the specific detection of Fe3+ and Cr6+, which could be ascribed to (i) static FL quenching as a result of the interaction between -OH, -NH2, and -COOH groups with the metal ions, (ii) internal filtering effects between the CQDs and Fe3+ or Cr6+, and (iii) fluorescence resonance energy transfer between CQDs and Cr6+. Humic acids (HAs) coexisting led to an underestimation of Fe3+ but an overestimation of Cr6+ by the CQDs due to the different FL quenching mechanisms of the CQDs. HAs sorbed Fe3+ and wrapped the CQDs to form a barrier between them, inhibiting FL quenching of CQDs by Fe3+. As for Cr6+, HAs reduced Cr6+ and also led to FL quenching; the sorbed HAs on the CQDs acted as a carrier of electrons between Cr6+ and the CQDs, enhancing FL quenching of the CQDs. This study is the first work to evidence the interference of HAs in the detection of metal ions by CQDs derived from cyanobacteria, which would enlighten the application of CQDs in a natural aqueous environment.
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Affiliation(s)
- Simin Liu
- Institute of Environmental Processes and Pollution Control, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Yishen Shi
- Institute of Environmental Processes and Pollution Control, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Xiaona Li
- Institute of Environmental Processes and Pollution Control, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
- Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, Jiangnan University, Wuxi 214122, China
| | - Zhenyu Wang
- Institute of Environmental Processes and Pollution Control, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
- Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, Jiangnan University, Wuxi 214122, China
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23
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Ghosh B, Roy S, Bardhan S, Mondal D, Saha I, Ghosh S, Basu R, Karmakar P, Das K, Das S. Biocompatible Carbon Dot Decorated α-FeOOH Nanohybrid for an Effective Fluorometric Sensing of Cr (VI) in Wastewater and Living Cells. J Fluoresc 2022; 32:1489-1500. [PMID: 35503196 DOI: 10.1007/s10895-022-02962-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 04/20/2022] [Indexed: 11/28/2022]
Abstract
This article reports the fluorometric detection of toxic hexavalent chromium Cr (VI)) in wastewater and Cr (VI) contaminated living cells using in-situ grown carbon quantum dots into the goethite (α-FeOOH) nano-matrix. The synthesized nano-hybrid shows enormous potential in determining the chromium contamination levels in various types of water samples. This selective fluorometric probe is enormously sensitive (LOD 81 nM) toward hexavalent chromium, which makes it a dedicated chromium sensor. Moreover, the sensing mechanism has been assessed using Stern-Volmer's equation and fluorescence lifetime experiments showing the simultaneous occurrence of photoinduced electron transfer and the inner filter effect. This chromium sensor has also been employed to assess the contamination level in real-life industrial wastewater. The performance of this probe in a real-life wastewater sample is quite commendable. Further, this biocompatible fluorometric probe has been used to demonstrate the in-vitro sensing of Cr (VI) in HeLa cells. The rapid detection mechanism of hexavalent chromium in living cells has been validated using theoretical docking simulations. Henceforth, this fluorometric sensor material could open new avenues not only in wastewater monitoring but also in biomedical applications.
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Affiliation(s)
- Bidisha Ghosh
- Department of Physics, Jadavpur University, Kolkata-700032, India
| | - Shubham Roy
- Department of Physics, Jadavpur University, Kolkata-700032, India
| | - Souravi Bardhan
- Department of Physics, Jadavpur University, Kolkata-700032, India
| | - Dhananjoy Mondal
- Department of Physics, Jadavpur University, Kolkata-700032, India
| | - Ishita Saha
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata-700032, India
| | - Saheli Ghosh
- Department of Physics, Jadavpur University, Kolkata-700032, India
| | - Ruma Basu
- Department of Physics, Jogamaya Devi College, Kolkata- 700026, India
| | - Parimal Karmakar
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata-700032, India
| | - Kaustuv Das
- Department of Physics, Jadavpur University, Kolkata-700032, India.
| | - Sukhen Das
- Department of Physics, Jadavpur University, Kolkata-700032, India.
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24
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Babazadeh S, Bisauriya R, Carbone M, Roselli L, Cecchetti D, Bauer EM, Sennato S, Prosposito P, Pizzoferrato R. Colorimetric Detection of Chromium(VI) Ions in Water Using Unfolded-Fullerene Carbon Nanoparticles. SENSORS (BASEL, SWITZERLAND) 2021; 21:6353. [PMID: 34640679 PMCID: PMC8512488 DOI: 10.3390/s21196353] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/14/2021] [Accepted: 09/21/2021] [Indexed: 12/05/2022]
Abstract
Water pollution caused by hexavalent chromium (Cr(VI)) ions represents a serious hazard for human health due to the high systemic toxicity and carcinogenic nature of this metal species. The optical sensing of Cr(VI) through specifically engineered nanomaterials has recently emerged as a versatile strategy for the application to easy-to-use and cheap monitoring devices. In this study, a one-pot oxidative method was developed for the cage opening of C60 fullerene and the synthesis of stable suspensions of N-doped carbon dots in water-THF solutions (N-CDs-W-THF). The N-CDs-W-THF selectively showed variations of optical absorbance in the presence of Cr(VI) ions in water through the arising of a distinct absorption band peaking at 550 nm, i.e., in the transparency region of pristine material. Absorbance increased linearly, with the ion concentration in the range 1-100 µM, thus enabling visual and ratiometric determination with a limit of detection (LOD) of 300 nM. Selectivity and possible interference effects were tested over the 11 other most common heavy metal ions. The sensing process occurred without the need for any other reactant or treatment at neutral pH and within 1 min after the addition of chromium ions, both in deionized and in real water samples.
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Affiliation(s)
- Saeedeh Babazadeh
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy
- Department of Mechanical Engineering of Biosystems, Agriculture Faculty, Urmia University, Urmia 5756151818, Iran
| | - Ramanand Bisauriya
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Marilena Carbone
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Ludovica Roselli
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Daniele Cecchetti
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Elvira Maria Bauer
- Institute of Structure of Matter (ISM), Italian National Research Council (CNR), 00015 Rome, Italy
| | - Simona Sennato
- Institute for Complex Systems (ISC), Italian National Research Council (CNR) and Physics Department, Sapienza University of Rome, 00185 Rome, Italy
| | - Paolo Prosposito
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Roberto Pizzoferrato
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy
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