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Shen Y, Liu LE, Li T, Liu R, Zhang J, Chen J, Zhang X, Li X, Jian N, Wu D. An ingenious integrated metal-organic frameworks-based ratiometric sensing platform for efficient, sensitive and real-time detection of tetracyclines. Food Chem 2025; 472:142892. [PMID: 39827562 DOI: 10.1016/j.foodchem.2025.142892] [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: 09/12/2024] [Revised: 01/09/2025] [Accepted: 01/11/2025] [Indexed: 01/22/2025]
Abstract
Herein, we report a novel ratiometric nanoprobe (CDs@LZIF-8-Eu3+) that integrates fluorescent carbon dots (CDs) and Eu3+ on LZIF-8 via a one-pot stirring method. Tetracyclines (TCs) can create inner filter effect on CDs while simultaneously generating an antenna effect with Eu3+. The rapid and efficient adsorption capabilities of LZIF-8 enhance the probability of TCs interacting with the signal tags. Additionally, energy transfer between CDs and Eu3+ linked by LZIF-8, sensitizes the fluorescence changes, resulting in signal amplification. The nanoprobe exhibits reverse response signals with high sensitivity (2.94-4.46 ng/mL), rapid response (within 10 s), and visible color change (blue to red). The practicability of the CDs@LZIF-8-Eu3+ nanoprobe was demonstrated in food and environmental samples, accurately discriminating four TCs through principal component analysis. Furthermore, the first portable nanofibers mat based solid-phase fluorescence sensing platform was fabricated by an in-situ growth method. Combined with a smartphone-assisted device, rapid on-site monitoring of TCs can be achieved.
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Affiliation(s)
- Yueyi Shen
- School of Public Health, Zhengzhou University, Zhengzhou 450001, PR China
| | - Li-E Liu
- School of Public Health, Zhengzhou University, Zhengzhou 450001, PR China
| | - Tong Li
- School of Chemistry, Zhengzhou University, Zhengzhou 450001, PR China
| | - Ruili Liu
- School of Public Health, Zhengzhou University, Zhengzhou 450001, PR China
| | - Jingyi Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, PR China
| | - Jiaojiao Chen
- Department of the First Clinical medicine, Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Xuqing Zhang
- Department of the First Clinical medicine, Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Xinyi Li
- School of Public Health, Zhengzhou University, Zhengzhou 450001, PR China
| | - Ningge Jian
- School of Public Health, Zhengzhou University, Zhengzhou 450001, PR China.
| | - Di Wu
- School of Public Health, Zhengzhou University, Zhengzhou 450001, PR China.
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2
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Yang S, Wang R, Men W, Zhao X. In Situ Confinement Strategy To Achieve High-Stability Room Temperature Phosphorescent Carbon Dots. Inorg Chem 2025; 64:8089-8099. [PMID: 40235038 DOI: 10.1021/acs.inorgchem.5c00187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2025]
Abstract
Room temperature phosphorescent (RTP) materials show great application potential in fields such as anticounterfeiting, data encryption, sensors, and bioimaging. However, RTP is prone to being quenched by the influence of oxygen atoms due to the particularity of its luminescence mechanism, leading to the difficulty of obtaining RTP materials with long afterglow and high stability. Herein, multicolored carbon dots-RTP composites (CDs-X@BA) were successfully fabricated via a facile in situ confinement strategy using resorcinol as the carbon source. Specifically, resorcinol underwent in situ carbonization and condensation reactions in boric acid (BA) to form CDs, which were then confined in a rigid environment. Interestingly, the synthesized CDs-X@BA exhibit dual emission afterglow of RTP (550 nm) and thermally activated delayed fluorescence (TADF) (470 nm). Of these, RTP is derived from the formed CDs, while TADF is generated from BA. Notably, CDs-X@BA exhibit remarkable stability, even in water and harsh environments. This is attributed to the formed rigid B2O3 matrix, which combines with CDs through physical fixation, hydrogen bonds, and covalent bonds (B-C), fully stabilizing the triplet excitons and suppressing nonradiative transitions. Subsequently, CDs-X@BA exhibit highly promising potential in anticounterfeiting and information security. This work provides new insights for developing high-efficiency RTP materials.
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Affiliation(s)
- Shaowen Yang
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Rui Wang
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Wenqian Men
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Xihui Zhao
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China
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3
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Yin Z, Wang H, Tang X, Mou M, Yu H, Wang H. Exploration of biomass-derived carbon dots based on chestnut shell for the sensitive detection of phosphate and tetracycline hydrochloride. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2025; 330:125746. [PMID: 39826165 DOI: 10.1016/j.saa.2025.125746] [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: 10/15/2024] [Revised: 12/15/2024] [Accepted: 01/11/2025] [Indexed: 01/22/2025]
Abstract
Phosphate pollution leads to the deterioration of water quality, posing a serious threat to human health. Tetracycline hydrochloride (TC), a class of broad-spectrum bacteriostatic agents, has garnered attention due to its extensive use and potential toxicity. Therefore, developing a highly selective and sensitive fluorescent probe for the detection of phosphates and TC is of significant importance. Herein, to enhance the conversion and utilization of high-value biomass waste, biomass-derived carbon dots (LZ-NCDs) emitting green fluorescence with a quantum yield of 44 % were synthesized in a one-step hydrothermal process using chestnut shell biomass waste as a carbon source and nitrogen doping technology. Based on the dynamic quenching mechanism, a highly sensitive method for effectively identifying PO43- using LZ-NCDs fluorescence probe was constructed, with a linear range of 0.1-10 µmol/L and a detection limit of 43.0 nmol/L. A quenched fluorescent probe, LZ-NCDs for the determination of TC, was fabricated through the synergistic effects of inner filter effect and static quenching, exhibiting a linear range from 0.05 to 10 µmol/L with a detection limit of 16.8 nmol/L. The successful determination of PO43- and TC in actual samples was achieved. The two different quenching mechanisms indicate that LZ-NCDs are expected to become potential sensing materials for the real-time monitoring of PO43- and TC in organisms and food, which is very important for our health.
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Affiliation(s)
- Zirui Yin
- School of Chemical Engineering, University of Science and Technology Liaoning, Liaoning, Anshan 114051, China
| | - Haowei Wang
- School of Chemical Engineering, University of Science and Technology Liaoning, Liaoning, Anshan 114051, China
| | - Xiaodan Tang
- School of Chemical Engineering, University of Science and Technology Liaoning, Liaoning, Anshan 114051, China.
| | - Mengshi Mou
- School of Chemical Engineering, University of Science and Technology Liaoning, Liaoning, Anshan 114051, China
| | - Hongmei Yu
- School of Chemical Engineering, University of Science and Technology Liaoning, Liaoning, Anshan 114051, China
| | - Huiyong Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
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4
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Cechinel MAP, Rocha LF, Padoin N, Soares C. Dual functionality of malt bagasse-based carbonaceous material for obtaining carbon dots and adsorbent: removing and detecting tetracycline. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2025; 32:11950-11971. [PMID: 40257732 DOI: 10.1007/s11356-025-36409-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Accepted: 04/10/2025] [Indexed: 04/22/2025]
Abstract
Malt bagasse was used as a precursor to produce a carbonaceous material (CM) with dual functionality: adsorbing tetracycline (TC) from aqueous solutions and serving as raw material for carbon dots (CDs) capable of detecting TC qualitatively. A 23 experimental design evaluated the effects of temperature (200-500 °C), heating rate (2-8 °C/min), and carbonization time (30-180 min) on the adsorption capacity of CM and the quantum yield of CDs. Adsorption capacity was evaluated in an aqueous solution of tetracycline (30 mg/L) and 1 g/L of CM. The use of CD as a qualitative sensor was studied in TC solutions (30 μM), based on the comparison of the areas under the fluorescence spectrum between samples with and without the antibiotic. Temperature was the most significant factor, followed by carbonization time. The material obtained at 350 °C for 30 min with a heating rate of 5 °C/min had a TC adsorption capacity of 7.0 mg/g ± 0.6 mg/g and a quantum yield ranging from 4.90% to 7.62%. These samples also achieved TC detection above 58%. This material had a heterogeneous mesoporous structure, with low graphitization and a greater presence of defects and/or disorder. Additionally, the CD particles exhibit an almost spherical morphology and good dispersion, with an average diameter ranging between 1 nm and 3 nm. These results demonstrate the innovative use of malt bagasse as a precursor for multi-functional carbonaceous materials. The results highlight the potential of lignocellulosic biomass as a versatile and sustainable resource for environmental applications, paving the way for future advances in integrated pollutant management strategies.
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Affiliation(s)
- Maria Alice Prado Cechinel
- Laboratory of Materials and Scientific Computing (LabMAC), Chemical and Food Engineering Department, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Larissa Fatima Rocha
- Laboratory of Materials and Scientific Computing (LabMAC), Chemical and Food Engineering Department, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Natan Padoin
- Laboratory of Materials and Scientific Computing (LabMAC), Chemical and Food Engineering Department, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Cíntia Soares
- Laboratory of Materials and Scientific Computing (LabMAC), Chemical and Food Engineering Department, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil.
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Kang X, Jiang K, Ge S, Wei K, Zhou Y, Xu BB, Wang K, Zhang X. Frontier in Advanced Luminescent Biomass Nanocomposites for Surface Anticounterfeiting. ACS NANO 2025; 19:11547-11575. [PMID: 40099949 DOI: 10.1021/acsnano.4c17883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2025]
Abstract
Biomass-based luminescent nanocomposites have garnered significant attention due to their renewable, biocompatible, and environmentally sustainable characteristics for ensuring information encryption and security. Nanomaterials are central to this development, as their high surface area, tunable optical properties, and nanoscale structural advantages enable enhanced luminescent efficiency, stability, and adaptability in diverse conditions. This review delves into the principles of luminescence, focusing on the inherent bioluminescent properties of natural materials, the utilization of biomass as precursors for carbon dots (CDs) and aggregation-induced emission (AIE)-enhanced substances, and the structural and functional optimization of luminescent materials. The role of cellulose nanocrystals (CNC), lignin, and chitosan as key biomass-derived nanomaterials will be highlighted, alongside surface and interfacial engineering strategies that further improve material performance. Recent advancements in the synthesis of biomass carbon dots and their integration into luminescent anticounterfeiting systems are discussed in detail. Furthermore, the integration of advanced artificial intelligence (AI) technologies is explored, emphasizing their potential to revolutionize luminescent anticounterfeiting. Current challenges, including scalability, waste minimization, and performance optimization, are critically examined. Finally, the review outlines future research directions, including the application of AI-driven methodologies and the exploration of unconventional luminescent biomass materials, to accelerate the development of high-performance, eco-friendly anticounterfeiting solutions.
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Affiliation(s)
- Xuelian Kang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Kaixin Jiang
- Department of Mechanical and Construction Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, U.K
| | - Shengbo Ge
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Kexin Wei
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yihui Zhou
- Hunan Automotive Engineering Vocational University, Zhuzhou 412001, China
| | - Ben Bin Xu
- Department of Mechanical and Construction Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, U.K
| | - Kui Wang
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Biomass Energy and Material Key Laboratory of Jiangsu Province, Nanjing 210042, China
| | - Xuehua Zhang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
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Lai CM, Xiao XS, Chen JY, He WY, Wang SS, Qin Y, He SH. Revolutionizing nanozymes: The synthesis, enzyme-mimicking capabilities of carbon dots, and advancements in catalytic mechanisms. Int J Biol Macromol 2025; 293:139284. [PMID: 39736288 DOI: 10.1016/j.ijbiomac.2024.139284] [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: 11/08/2024] [Revised: 12/20/2024] [Accepted: 12/27/2024] [Indexed: 01/01/2025]
Abstract
Nanozymes, a revolutionary category of engineered artificial enzymes based on nanomaterials, have been developed to overcome the inherent limitations of natural enzymes, such as the high cost associated with storage and their fragility. Carbon dots (CDs) have emerged as compelling candidates for various applications due to their versatile properties. Particularly noteworthy are CDs with a range of surface functional groups that exhibit enzyme-like behavior, combining exceptional performance with catalytic capabilities. This review explores the methodologies used for synthesizing CDs with enzyme mimicking capabilities, highlighting potential avenues such as doping and hybrid nanozymes to enhance their catalytic efficacy. Moreover, a comprehensive overview of CDs that mimick the activities of various oxidoreductases-like peroxidase, catalase, oxidase/laccase, and superoxide dismutase-like is provided. The focus is on the in-depth exploration of the mechanisms, advancements and practical applications of each oxidoreductase-like function exhibited by CD nanozymes. Drawing upon these exhaustive summaries and analyses, the review identifies the prevailing challenges that hinder the seamless integration of CDs into real-world applications and offers forward-looking perspectives for future directions.
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Affiliation(s)
- Chun-Mei Lai
- College of Life Sciences, Fujian Provincial Key laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University Fuzhou, Fujian 350002, P. R. China
| | - Xiao-Shan Xiao
- College of Life Sciences, Fujian Provincial Key laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University Fuzhou, Fujian 350002, P. R. China
| | - Jing-Yi Chen
- Shengli Clinical Medical College of Fujian Medical University Department of Pediatrics Surgery, Fujian Provincial Hospital University Affiliated Provincial Hospital, Fuzhou University Affiliated Provincial Hospital 134 Dongjie Road, Fuzhou, Fujian 350001, P. R. China
| | - Wen-Yun He
- Shengli Clinical Medical College of Fujian Medical University Department of Pediatrics Surgery, Fujian Provincial Hospital University Affiliated Provincial Hospital, Fuzhou University Affiliated Provincial Hospital 134 Dongjie Road, Fuzhou, Fujian 350001, P. R. China
| | - Si-Si Wang
- Shengli Clinical Medical College of Fujian Medical University Department of Pediatrics Surgery, Fujian Provincial Hospital University Affiliated Provincial Hospital, Fuzhou University Affiliated Provincial Hospital 134 Dongjie Road, Fuzhou, Fujian 350001, P. R. China
| | - Yuan Qin
- College of Life Sciences, Fujian Provincial Key laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University Fuzhou, Fujian 350002, P. R. China.
| | - Shao-Hua He
- Shengli Clinical Medical College of Fujian Medical University Department of Pediatrics Surgery, Fujian Provincial Hospital University Affiliated Provincial Hospital, Fuzhou University Affiliated Provincial Hospital 134 Dongjie Road, Fuzhou, Fujian 350001, P. R. China.
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7
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Chen F, Zhou Z, Yang N, Jiang Q, Zhang X, Zhang H, Zheng Y, Li W, Lei B. Carbon dots based cascading nanozymes mitigate phytotoxicity in lettuces under imidacloprid stress. Food Chem 2025; 464:141926. [PMID: 39520885 DOI: 10.1016/j.foodchem.2024.141926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 11/01/2024] [Accepted: 11/03/2024] [Indexed: 11/16/2024]
Abstract
Improper pesticide use induces oxidative stress and disrupts detoxification systems in plants. We synthesized CDs with cascading nanozyme activities to mitigate phytotoxicity in lettuces under imidacloprid (IMI) stress. CDs exhibit superoxide dismutase-like (SOD-like) and peroxidase-like (POD-like) activities. Surface modifications and analysis of CDs, the SOD-like activity relies on the -NH2, -COOH, and -OH groups for binding superoxide anions (O2•-), while POD-like activity depends on -COOH and CO groups, also, CO group provides π-system and the electron-deficient structure for electron transfer. Practically, under IMI stress, CDs strengthen multiple defense systems in lettuces, reducing levels of reactive oxygen toxicity (O2•-, H2O2, and MDA, by 26.77 %, 48.52 %, and 13.10 %, respectively). Meanwhile, CDs upregulate detoxification gene expression, resulting in a 42.74 % reduction in IMI residue in lettuces. Moreover, the acceptable daily intake of IMI in lettuces treated with CDs was less than 18.0 % of the reference dose, even at high-concentration IMI.
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Affiliation(s)
- Fengqiong Chen
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR China; College of Horticulture, South China Agricultural University, Guangzhou 510642, PR China
| | - Ziyan Zhou
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR China; College of Horticulture, South China Agricultural University, Guangzhou 510642, PR China
| | - Na Yang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR China
| | - Qin Jiang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR China
| | - Xuejie Zhang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR China
| | - Haoran Zhang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR China
| | - Yinjian Zheng
- Institute of Urban Agriculture, Chinese Academy of Agricultural Science, Chengdu 610218, China
| | - Wei Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR China.
| | - Bingfu Lei
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong, Maoming 525100, PR China.
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8
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Renu, Nidhi, Kaur P, Komal, Minakshi, Paulik C, Kaushik A, Singhal S. Rational design of Boerhavia diffusa derived CoFe 2O 4-Carbon dots@Boehmite platform for photocatalysis and ultra trace monitoring of hazardous pesticide and UO 22+ ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2025; 325:125111. [PMID: 39270366 DOI: 10.1016/j.saa.2024.125111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 08/30/2024] [Accepted: 09/06/2024] [Indexed: 09/15/2024]
Abstract
In view of exploiting natural resources for designing of effectual materials in favor of detection and obliteration of water pollutants, a fluorescent nanomaterial (CDBHCF) based on biomass derived carbon dots (CDs) was constructed. The CDs and cobalt ferrite (CF) particles were anchored on boehmite (BH) which served as a support material for CDs. The CDBHCF nanocomposite was prepared via facile hydrothermal treatment for selective recognition of Methyl parathion (MP) pesticide and uranyl ions (UO22+). The corresponding structural, morphological and opto-electronic properties of the nanomaterials have been investigated by different physicochemical techniques. The fluorescent CDBHCF probe was employed to detect extremely low concentration of MP and UO22+ with detection limit of 22.4 nM and 4.4 nM, respectively. Ultimately, the proposed sensing platform was validated through real sample analysis. Besides, CDBHCF nanocomposite was utilized for photocatalytic abolition of Tetracycline (TC) in water samples. Initially, the impact of various operational parameters on the degradation efficiency, including catalyst dosage and initial pH were thoroughly examined. Under optimized conditions, the fabricated CDBHCF nanocomposite demonstrated excellent results for photocatalytic degradation of TC (92 % degradation in 120 min) under visible light illumination. Thus, the proposed strategy delivered an innovative insight for dual purpose of CDBHCF nanocomposite: as a fluorescent probe for real time monitoring and as a photocatalyst for removal of pollutants via simple photocatalytic degradation.
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Affiliation(s)
- Renu
- Energy Research Centre, Panjab University, Chandigarh 160014, India
| | - Nidhi
- Department of Chemistry & Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Paramdeep Kaur
- Department of Chemistry & Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Komal
- Department of Chemistry, School of Basic Sciences, Manipal University, Jaipur, India
| | - Minakshi
- Department of Chemistry & Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Christian Paulik
- Institute for Chemical Technology of Organic Materials, Johannes Kepler University, Linz, Austria
| | - Anupama Kaushik
- Energy Research Centre, Panjab University, Chandigarh 160014, India; Dr. S. S. Bhatnagar University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh 160014, India.
| | - Sonal Singhal
- Department of Chemistry & Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.
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Zhang H, Bai J, Chen X, Wang L, Peng W, Zhao Y, Weng J, Zhi W, Wang J. Surface State-Based panchromatic luminescent carbon dots. J Colloid Interface Sci 2025; 678:77-87. [PMID: 39180850 DOI: 10.1016/j.jcis.2024.08.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 07/25/2024] [Accepted: 08/11/2024] [Indexed: 08/27/2024]
Abstract
Carbon dots have shown a broad application prospect in the fields of sensing and detection, biological imaging, and optoelectronic devices. However, it is still challenging to adopt a simple and green synthesis route and to develop new precursor systems to prepare full-color luminescent carbon dots. This study proposes a mechanism for fine regulation of carbon dot fluorescence spectra based on surface states of CN, COC, and OH, among which CN play a major role in long wavelength emission while COC and OH are responsible for the blue shift of emission wavelength. Using 4,4-bipyridine and p-phenylenediamine as precursors in safe and environmentally friendly glycol and water as solvents for the first time, the fine spectral carbon dots with full spectrum luminescence from purple (441 nm) to red (627 nm) were successfully synthesized by simply changing the composition of the reaction solvent and using a short reaction time. Compared with other reports on regulating polychromatic carbon dots, our method is more refined and has a wider distribution of luminescent colors. In addition, the obtained carbon dots based on such surface state luminescence mechanism have shown good application prospects in specific detection of Fe3+and cell labeling.
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Affiliation(s)
- Hangzhen Zhang
- Laboratory of Advance Technologies of Materials, Ministry of Education, College of Medicine and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Jiafan Bai
- Laboratory of Advance Technologies of Materials, Ministry of Education, College of Medicine and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Xiangli Chen
- Laboratory of Advance Technologies of Materials, Ministry of Education, College of Medicine and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Linyu Wang
- Laboratory of Advance Technologies of Materials, Ministry of Education, College of Medicine and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Wenzhen Peng
- Department of Biochemistry and Molecular Biology, College of Basic and Forensic Medicine, Sichuan University, Chengdu 610041, China.
| | - Yuancong Zhao
- Laboratory of Advance Technologies of Materials, Ministry of Education, College of Medicine and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Jie Weng
- Laboratory of Advance Technologies of Materials, Ministry of Education, College of Medicine and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Wei Zhi
- Laboratory of Advance Technologies of Materials, Ministry of Education, College of Medicine and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Jianxin Wang
- Laboratory of Advance Technologies of Materials, Ministry of Education, College of Medicine and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
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10
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Feng X, Yuan R, Liu L, Ding L, Long L, Wang K. Construction of dual-signal output sensing platform for different scene of rapid and sensitive ochratoxin A detection in corn. Talanta 2025; 282:126991. [PMID: 39368334 DOI: 10.1016/j.talanta.2024.126991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 09/12/2024] [Accepted: 10/03/2024] [Indexed: 10/07/2024]
Abstract
Photoelectrochemical (PEC) is a highly sensitive and fast analytical method that can be used at low concentrations, while photoelectrochromic is a simple and low-cost method primarily utilized for high concentration detection. Therefore, we have developed a dual-signal output sensing platform based on both PEC and photoelectrochromism for rapid and sensitive OTA detection. The sensing platform is divided into signal generation (SG) region and signal output (SO) region, which modified with WO3/BiVO4 photoactive nanocomposites and polyaniline (PANI), respectively. By irradiating the SG region, photogenerated electrons are generated and injected into the SO region through the conductive pathway, resulting in a decrease in surface blue polyaniline and a change to green. The smart device can accurately measure the RGB-Green values, enabling the construction of a photochromic visual sensing platform. After immobilizing the OTA aptamer in the SG region, a linear correlation was observed between the concentration of OTA and the RGB-Green value within the range of 20 ng/L ∼250 μg/L. The detection limit was determined to be 8.33 ng/L (S/N = 3). Furthermore, for a more sensitive OTA detection, a PEC sensing platform was developed utilizing the SG region as a photoanode, exhibiting a linear correlation in the range of 2 pg/L∼300 μg/L with a detection limit of 0.8 pg/L (S/N = 3). The detection of these two modes under the requirement of the international standard for the maximum limit realizes the sensitive OTA detection. The RGB-Green is verified to PEC signal, which improves the detection accuracy. The sensing platform has several advantages and is suitable for various application scenarios.
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Affiliation(s)
- Xujing Feng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Ruishuang Yuan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Liqi Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Lijun Ding
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China; Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, OE, School of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Lingliang Long
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Kun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China; Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, OE, School of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
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11
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Feng B, Zhao W, Zhang M, Fan X, He T, Luo Q, Yan J, Sun J. Lignin-Based Carbon Nanomaterials for Biochemical Sensing Applications. Chem Asian J 2024; 19:e202400611. [PMID: 38995858 DOI: 10.1002/asia.202400611] [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: 05/28/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 07/14/2024]
Abstract
Lignin-based carbon nanomaterials offer several advantages, including biodegradability, biocompatibility, high specific surface area, ease of functionalization, low toxicity, and cost-effectiveness. These materials show promise in biochemical sensing applications, particularly in the detection of metal ions, organic compounds, and human biosignals. Various methods can be employed to synthesize carbon nanomaterials with different dimensions ranging from 0D-3D, resulting in diverse structures and physicochemical properties. This study provides an overview of the preparation techniques and characteristics of multidimensional (0-3D) lignin-based carbon nanomaterials, such as carbon dots (CDs), carbon nanotubes (CNTs), graphene, and carbon aerogels (CAs). Additionally, the sensing capabilities of these materials are compared and summarized, followed by a discussion on the potential challenges and future prospects in sensor development.
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Affiliation(s)
- Baofang Feng
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing, 100081, P.R. China
| | - Weidong Zhao
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing, 100081, P.R. China
- Tangshan Research Institute, Beijing Institute of Technology, Tangshan, 063015, P.R. China
| | - Min Zhang
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing, 100081, P.R. China
| | - Xu Fan
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing, 100081, P.R. China
| | - Ting He
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing, 100081, P.R. China
| | - Qizhen Luo
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing, 100081, P.R. China
| | - Jipeng Yan
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing, 100081, P.R. China
| | - Jian Sun
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing, 100081, P.R. China
- Beijing Engineering Research Center of Cellulose and Its Derivatives, Advanced Research Institute of Multidisciplinary Sciences, Beijing Institute of Technology, Beijing, 100081, P.R. China
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12
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Li J, Lu C, Yang S, Xie Q, Danzeng Q, Liu C, Zhou CH. Integrating carbon dots and gold/silver core-shell nanoparticles to achieve sensitive detection of dopamine with fluorometric/colorimetric dual signal. Anal Bioanal Chem 2024; 416:4951-4960. [PMID: 39046501 DOI: 10.1007/s00216-024-05427-1] [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: 05/10/2024] [Revised: 06/20/2024] [Accepted: 06/25/2024] [Indexed: 07/25/2024]
Abstract
Dopamine (DA) is a potent neuromodulator in the brain that affects a wide range of motivated behaviors. Abnormal concentration of DA is related to a variety of diseases. Hence, it is imperative to establish a rapid and precise method for quantifying DA. In this work, we integrate orange-yellow emissive carbon dots (CDs) with target-induced silver deposition on gold nanoparticles (Au NPs), forming gold/silver core-shell nanoparticles (Au@Ag NPs), to construct a fluorometric and colorimetric dual-signal sensor for sensitive detection of DA. Au NPs and silver ions (Ag+) have minimal effect on the fluorescence of CDs. DA can reduce the silver ions to Ag(0) on the surface of the Au NPs to form a silver shell, resulting in the blue-shift of the absorbance peak from 520 to 416 nm, which overlaps with the excitation spectrum of CDs. As a result, the system color turns from pink to orange-yellow, and the fluorescence of CDs is quenched due to the strong inner filter effect. The linear range of the colorimetry is 0.5-18 μM with a limit of detection (LOD) of 0.41 μM, while the linear range for the fluorometry method is 0.5-14 μM with a LOD of 0.021 μM. This method demonstrates notable advantages including a low detection limit, rapid response time, and straightforward operation in practical samples, showing great potential in biomedical analysis.
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Affiliation(s)
- Jing Li
- National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 400044, P. R. China
| | - Chaofen Lu
- National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Shufen Yang
- National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Qing Xie
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 400044, P. R. China
| | - Qunzeng Danzeng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 400044, P. R. China
| | - Cui Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 400044, P. R. China.
| | - Chuan-Hua Zhou
- National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
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13
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Bu L, Li S, Nie L, Jiang L, Dong G, Song D, Liu W, Geng X, Meng D, Zhou Q. Construction of fluorescent sensor array with nitrogen-doped carbon dots for sensing Sudan Orange G and identification of various azo compounds. J Colloid Interface Sci 2024; 667:403-413. [PMID: 38640659 DOI: 10.1016/j.jcis.2024.04.109] [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: 01/07/2024] [Revised: 04/07/2024] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
In this study, nitrogen-doped carbon dots (N-CDs) were facilely fabricated by one-pot hydrothermal method with levulinic acid and triethanolamine. A fluorescent sensor array was established for identifying azo compounds including Sudan Orange G (SOG), p-diaminoazobenzene, p-aminoazobenzene, azobenzene and quantitative detection of SOG. Experimental results revealed that azo compounds could quench the fluorescent intensity of N-CDs. Owing to various azo compounds showing different affinities to N-CDs, the sensor array exhibited different fluorescence quenching changes, which were further analyzed with principal component analysis to discriminate azo compounds. The sensor array was able to differentiate and recognize diverse concentrations of azo compounds from 0.25 to 2 mg/L. Simultaneously, a variety of factors affecting the detection of SOG were optimized. Under the optimized conditions, the sensor showed excellent stability and sensitivity. The sensor possessed marvelous linearity in the range of 0.1-1 mg/L and 1-4 mg/L and the detection limit was 27.82 μg/L. Spiked recoveries of 90.8-98.2 % were attained at spiked levels of 0.2 mg/L and 1 mg/L, demonstrating that the constructed fluorescence sensor was dependable and feasible for sensing SOG in environmental water samples.
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Affiliation(s)
- Lutong Bu
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Shuangying Li
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Linchun Nie
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Liushan Jiang
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Guangyu Dong
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Denghao Song
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Wenjing Liu
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Xiaodie Geng
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Dejing Meng
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Qingxiang Zhou
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China.
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14
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Feng X, Ding L, Hao N, Wang K. A Piezoelectric Nanogenerator-Driven Dual-Mode Platform for Visualization and Impedance Sensing. Anal Chem 2024. [PMID: 39014979 DOI: 10.1021/acs.analchem.4c02495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
Traditional visual biosensing platforms rely on color to display detection results, which can be influenced by individual visual abilities, equipment, parameters, and lighting conditions during photo capture. This limitation significantly impedes the advancement of next-generation portable electrochemical biosensors. Therefore, we propose a visual biosensing device that utilizes distance as an indicator, enabling the facile determination of the length of discoloration, which is inversely proportional to the concentration of the target analyte. The separation of the Signal Generation (SG) and Signal Output (SO) regions effectively mitigates potential interference from the sample color. Additionally, the SG region can be disassembled to facilitate electrochemical impedance spectroscopy (EIS) detection in laboratory settings, enabling dual-mode detection. Meanwhile, the utilization of piezoelectric nanogenerators (PENG) empowers the entire point-of-care testing (POCT) sensing device, effectively addressing the issue of a limited battery life. The biosensing device exhibited a satisfactory linear range (EIS mode, 5 pg/L to 5 mg/L; visual mode, 0.5 ng/L to 5 mg/L) and a low limit of detection (EIS mode, 2.3 pg/L; visual mode, 0.14 ng/L) with S/N = 3 for ochratoxin A (OTA) under optimized conditions. The self-powered and cost-effective dual-mode biosensing platform developed for OTA detection offers clear and easily interpretable results, demonstrating a high accuracy in laboratory settings.
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Affiliation(s)
- Xujing Feng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Lijun Ding
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, P. R. China
| | - Nan Hao
- School of Chemistry and Materials Science, Nanjing University of Information, Science & Technology, Nanjing, Jiangsu 210044, P. R. China
| | - Kun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, P. R. China
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15
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Zhang D, Liu L, Li C. Aggregation-induced-emission red carbon dots for ratiometric sensing of norfloxacin and anti-counterfeiting. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 315:124186. [PMID: 38593536 DOI: 10.1016/j.saa.2024.124186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/09/2024] [Accepted: 03/23/2024] [Indexed: 04/11/2024]
Abstract
The detection of trace antibiotic residues holds significant importance because it's related to food safety and human health. In this study, we developed a new high-yield red-emitting carbon dots (R-CDs) with aggregation-induced emission properties for ratiometric sensing of norfloxacin. R-CDs were prepared in 30 min using an economical and efficient microwave-assisted method with tartaric acid and o-phenylenediamine as precursors, achieving a high yield of 34.4 %. R-CDs showed concentration-dependent fluorescence and aggregation-induced-emission properties. A ratiometric fluorescent probe for detecting the norfloxacin was developed. In the range of 0-40 μM, the intensity ratio of two emission peaks (I445 nm/I395 nm) towards norfloxacin show good linear relationship with its concentrations and a low detection limit was obtained (36.78 nM). In addition, complex patterns were developed for anti-counterfeiting based on different emission phenomenon at different concentrations. In summary, this study designed a novel ratiometric fluorescent probe for detection of norfloxacin, which greatly shortens the detection time and improves efficiency compared with high-performance liquid chromatography and other methods. The study will promote the application of carbon dots in anti-counterfeiting and other related fields, laying the foundation for the preparation of low-cost photosensitive anti-counterfeiting materials.
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Affiliation(s)
- Daohan Zhang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Lei Liu
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; Hebei Innovation Center of Pharmaceutical and Chemical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
| | - Chunyan Li
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
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16
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Abbas M, Hussain Shah N, Ilyas M, Mudasar M, Raza A, Ashfaq Ahmad M, Cui Y, Wang Y. WO 3-x nanorods/rGO/AgBiS 2 Z-scheme heterojunction with comprehensive spectrum response and enhanced Fenton and photocatalytic activities. J Colloid Interface Sci 2024; 662:250-262. [PMID: 38350348 DOI: 10.1016/j.jcis.2024.02.026] [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: 01/05/2024] [Revised: 01/31/2024] [Accepted: 02/03/2024] [Indexed: 02/15/2024]
Abstract
Tetracycline (TC) antibiotics and dyes are the prevalent water contaminants, and their removal from the water through photocatalysis is a plausible approach. However, most semiconductors in their pristine form need to be improved to be exploited in photocatalysis owing to poor photoresponse, intense carrier recombination, and inertness without irradiation. Herein, we demonstrate the modification of defective WO3-x by rGO and AgBiS2 in the form of WO3-x/rGO/AgBiS2 (R2). It exploits the superior conductivity and synergism of rGO to inhibit carrier recombination; thereby, Z-scheme heterojunction with AgBiS2 provides high redox potential. Defects in WO3-x enable electron (e-) storage in R2, which decomposes H2O2 to generate ROS without irradiation. Owing to these essences and broad-spectrum response, it removed 93.72, 82.77, and 84.82% of TC during photo-Fenton (PFR), night-Fenton (NFR), and photocatalytic (PCR) reactions, respectively. Its removal rates reached 94.74, 81.54, and 87.50% against rhodamine B (RhB) during PFR, NFR, and PCR, respectively. It is superior to memory catalysis (MC) and conventional Fenton reactions (CFR) because it can perform without and with irradiation across a broader pH range. So, this work is conducive to designing WO3-x-based catalysts to combat environmental and energy crises.
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Affiliation(s)
- Muhammad Abbas
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
| | - Navid Hussain Shah
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
| | - Mubashar Ilyas
- Key Laboratory of Clusters Science of Ministry of Education, School of Chemistry Beijing Institute of Technology Beijing 100081, China
| | - Murtaza Mudasar
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Ali Raza
- Department of Mechanical Engineering, University of Engineering and Technology Lahore, Pakistan
| | - M Ashfaq Ahmad
- Department of Physics, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.
| | - Yanyan Cui
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China.
| | - Yaling Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China, Beijing 100190, China.
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17
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Xu D, Zhang J, Luo Z, Zhao Y, Zhu Y, Yang H, Zhou Y. Ratiometric fluorescence and absorbance dual-model immunoassay based on 2,3-diaminophenazine and carbon dots for detecting Aflatoxin B1. Food Chem 2024; 439:138125. [PMID: 38061303 DOI: 10.1016/j.foodchem.2023.138125] [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: 10/25/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 01/10/2024]
Abstract
In this work, a dual-model immunoassay for detecting Aflatoxin B1 (AFB1) was developed based on 2,3-diaminophenazine (DAP) and carbon dots (CDs). Under the catalysis of horseradish peroxidase (HRP), the o-phthalylenediamine (OPD) was oxidized to DAP which had a yellow color and intense fluorescence. The color changes form colorless to yellow was used to design absorbance model immunoassay. Meanwhile, the absorption spectrum of DAP overlapped with the emission spectrum of CDs which caused the fluorescence of CDs to be quenched. The fluorescence changes of DAP and CDs were used to develop ratiometric fluorescence immunoassay. The dual-model immunoassay showed excellent sensitivity with the limits of detection (LODs) of 0.013 ng/mL for fluorescence mode and 0.062 ng/mL for absorbance mode. Meanwhile, both models exhibited great selectivity for AFB1. Additionally, the recovery rates suggested the proposed dual-model immunoassay had great potential in actual samples detection.
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Affiliation(s)
- Die Xu
- College of Life Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China
| | - Junxiang Zhang
- College of Life Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China
| | - Zhenzhen Luo
- College of Life Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China
| | - Yanan Zhao
- College of Animal Science and Technology, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China
| | - Yuanhua Zhu
- College of Animal Science and Technology, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China
| | - Hualin Yang
- College of Life Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China.
| | - Yu Zhou
- College of Life Science, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China; College of Animal Science and Technology, Yangtze University, 266 Jingmi Road, Jingzhou, Hubei 434025, China.
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18
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Zhang L, He Y, Wu Y, Zhang J, Li S, Zhang Z. Highly sensitive ratiometric fluorescence detection of tetracycline residues in food samples based on Eu/Zr-MOF. Food Chem 2024; 436:137717. [PMID: 37839123 DOI: 10.1016/j.foodchem.2023.137717] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/04/2023] [Accepted: 10/08/2023] [Indexed: 10/17/2023]
Abstract
The development of a simple, rapid, and sensitive method for monitoring antibiotic residues is crucial for maintaining food safety. Herein, a ratiometric fluorescence probe based on bimetallic organic framework (Eu/Zr-MOF) was developed for the detection of tetracycline (TC). The Eu/Zr-MOF was synthesized by the coordination of Eu3+ and Zr4+ with 2-APDC, which exhibited a grape-like cluster morphology and dual-emitting fluorescence at 430 nm/616 nm. Based on the internal filtering effect (IFE), significant fluorescence quenching was observed at 430 nm, whereas only slight changes occurred at 616 nm. The ratiometric sensing offered two broad linear ranges (0.5-8 μg/mL; 10-60 μg/mL) and a low detection limit (26.7 ng/mL). The proposed method was applied to the determination of TC in pork and water samples. Fluorescent sensors have the advantages of simple design, fast response, and high sensitivity, thus providing a promising means for evaluating the safety of food contaminated with TC.
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Affiliation(s)
- Lei Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Yuxin He
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Yue Wu
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Jieyuan Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Siqiao Li
- Department of Forensic Medicine, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Forensic Medicine, Chongqing 400016, China.
| | - Zhengwei Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
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19
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Han Y, Kong X, Gu Y, Bao R, Yi L, Liu L, Lan L, Gan Z, Yi J. Fluorescence sensor based on optimized quantum yield manganese-carbon polymer dots and smartphone-integrated sensing platform for tetracycline detection. Mikrochim Acta 2024; 191:141. [PMID: 38363372 DOI: 10.1007/s00604-024-06225-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 01/21/2024] [Indexed: 02/17/2024]
Abstract
The one-step synthesis of Mn-doped carbon quantum dots (Mn-CPDs) with a high quantum yield (QY = 45%) is reported using the microwave-assisted method. Subsequently, Mn-CPDs were successfully combined with Eu3+ ions to construct an Eu3+@Mn-CPDs fluorescence sensor. The presence of tetracycline (TC) induced a transition of fluorescence emission from blue (434 nm) to red (618 nm), and a robust linear relationship was observed between the ratio of F618 nm / F434 nm and the TC concentration (5 - 50 nmol/L), with a limit of detection (LOD) of 5.76 nmol/L. The underlying mechanism of Eu3+@Mn-CPDs and TC sensing is unveiled as a synergistic effect involving inner filter effect (IFE) and concurrent interactions. Notably, the smartphone-integrated sensing platform based on Eu3+@Mn-CPDs enables rapid and quantitative TC detection within a short time (< 30 s) by monitoring fluorescence color changes, achieving high-detection sensitivities (with a LOD of 6.18 nmol/L). This versatile and efficient sensing platform demonstrates its potential for the determination of TC concentrations in milk, honey, and tap water samples.
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Affiliation(s)
- Yushu Han
- Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Xin Kong
- Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China.
| | - Ying Gu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Rui Bao
- Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China.
| | - Lunzhao Yi
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Liang Liu
- Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Lin Lan
- Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Zhenfeng Gan
- Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Jianhong Yi
- Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
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20
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Thara CR, Mathew B. Microwave synthesized N-doped carbon dots for dual mode detection of Hg(II) ion and degradation of malachite green dye. Talanta 2024; 268:125278. [PMID: 37839323 DOI: 10.1016/j.talanta.2023.125278] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/30/2023] [Accepted: 10/04/2023] [Indexed: 10/17/2023]
Abstract
One of the most intriguing materials today is carbon dots, which offer a variety of possible uses owing to their distinct photophysical and chemical characteristics. The current study examines the electrochemical and photochemical aspects of carbon dots produced in a single pot for environmental sustainability. Domestic microwave-assisted pyrolysis of urea and glucose yielded chemically synthesized nitrogen-doped carbon dots (microwave synthesized N-doped carbon dots (M-NCDs)) with blue fluorescence and a quantum yield of 14.9 %. High water dispersibility, stability, and biocompatibility were the significant attributes of synthesized M-NCDs. Customarily fluorescent carbon dots were initially used for sensing studies. Fluorescent and electrochemical studies manifest the excellent stability, sensitivity, and selectivity of M-NCDs for mercuric ions. Both methods' Hg (II) procure detection limits of 3.5 nM and 6.1 nM. In addition to sensing traits, the subsequent section deals with the potential of M-NDCs to bring about the exhaustive degradation of malachite green (MG) dye. Within 60 min, 98 % of the dye was catalytically degraded by M-NCD by first-order kinetics based on the Langmuir-Hinshelwood model. This is the first time reporting the catalytic degradation of malachite green dye utilizing carbon dot in its natural form rather than being doped with any metal atom or converted to any composite form.
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Affiliation(s)
- Chinnu R Thara
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, 686560, Kerala, India
| | - Beena Mathew
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, 686560, Kerala, India.
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21
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Belal F, Mabrouk M, Hammad S, Ahmed H, Barseem A. Recent Applications of Quantum Dots in Pharmaceutical Analysis. J Fluoresc 2024; 34:119-138. [PMID: 37222883 DOI: 10.1007/s10895-023-03276-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/16/2023] [Indexed: 05/25/2023]
Abstract
Nanotechnology has emerged as one of the most potential areas for pharmaceutical analysis. The need for nanomaterials in pharmaceutical analysis is comprehended in terms of economic challenges, health and safety concerns. Quantum dots (QDs)or colloidal semiconductor nanocrystals are new groups of fluorescent nanoparticles that bind nanotechnology to drug analysis. Because of their special physicochemical characteristics and small size, QDs are thought to be promising candidates for the electrical and luminescent probes development. They were originally developed as luminescent biological labels, but are now discovering new analytical chemistry applications, where their photo-luminescent properties are used in pharmaceutical, clinical analysis, food quality control and environmental monitoring. In this review, we discuss QDs regarding properties and advantages, advances in methods of synthesis and their recent applications in drug analysis in the recent last years.
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Affiliation(s)
- Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Mokhtar Mabrouk
- Department of pharmaceutical analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Sherin Hammad
- Department of pharmaceutical analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Hytham Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt
| | - Aya Barseem
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt.
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22
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Li Z, Li S, Li Y, Liu M, Jiang L, Niu J, Zhang Y, Zhou Q. Highly selective and sensitive determination of doxycycline integrating enrichment with thermosensitive magnetic molecular imprinting nanomaterial and carbon dots based fluorescence probe. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 896:165257. [PMID: 37414165 DOI: 10.1016/j.scitotenv.2023.165257] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/15/2023] [Accepted: 06/30/2023] [Indexed: 07/08/2023]
Abstract
Doxycycline (DOX), a typical tetracycline antibiotic, is widely used because of its excellent antibacterial activity. To develop effective method for DOX has attracted much more attention. Herein, a new detection technology integrating magnetic solid phase extraction (MSPE) based on thermosensitive magnetic molecularly imprinted polymers (T-MMIPs) and fluorescence spectrometry based on carbon dots (CDs) was established. Thermosensitive magnetic molecularly imprinted polymers (T-MMIPs) was designed for selective enrichment of trace DOX. The synthesized T-MMIPs showed excellent selectivity for DOX. The adsorption performance of T-MMIPs varied with temperature in different solvents, which could achieve the enrichment and rapid desorption of DOX. In addition, the synthesized CDs had stable fluorescent property and better water-solubility, and the fluorescence of CDs was significantly quenched by DOX due to the internal filtration effect (IFE). Under the optimized conditions, the method resulted in good linearity over the range from 0.5 to 30 μg L-1, and the limit of detection was 0.2 μg L-1. The constructed detection technology was validated with real water samples, and excellent spiked recoveries from 92.5 % to 105.2 % were achieved. These data clearly indicated that the proposed technology was rapid, highly selective, environmentally friendly, and possessed significant potential application and development prospects.
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Affiliation(s)
- Zhi Li
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Shuangying Li
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Yanhui Li
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Menghua Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Liushan Jiang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Jinwen Niu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Yue Zhang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Qingxiang Zhou
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China.
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23
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Li G, Xu J, Xu K. Physiological Functions of Carbon Dots and Their Applications in Agriculture: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2684. [PMID: 37836325 PMCID: PMC10574142 DOI: 10.3390/nano13192684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023]
Abstract
Carbon dots are carbon-based nanoparticles, which have the characteristics of a simple preparation process, photoluminescence, biocompatibility, an adjustable surface function, water solubility, and low-level toxicity. They are widely used in biological applications, such as imaging, biosensing, photocatalysis, and molecular transfer. They have also aroused great interest among researchers in agriculture, and there has been significant progress in improving crop growth and production. This review presents the physiological functions of carbon dots for crop growth and development, photosynthesis, water and nutrient absorption, and abiotic stress resistance and their applications in improving the ecological environment and agriculture as biosensors, and future application prospects and research directions of carbon dots in agriculture.
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Affiliation(s)
- Guohui Li
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China; (G.L.); (J.X.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
- Research Institute of Rice Industrial Engineering Technology, Agricultural College of Yangzhou University, Yangzhou 225009, China
| | - Jiwei Xu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China; (G.L.); (J.X.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
- Research Institute of Rice Industrial Engineering Technology, Agricultural College of Yangzhou University, Yangzhou 225009, China
| | - Ke Xu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China; (G.L.); (J.X.)
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
- Research Institute of Rice Industrial Engineering Technology, Agricultural College of Yangzhou University, Yangzhou 225009, China
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24
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Cong Y, Li X, Zhang S, Zheng Q, Zhang Y, Lv SW. Embedding Carbon Quantum Dots into Crystalline Polyimide Covalent Organic Frameworks to Enhance Water Oxidation for Achieving Dual-Channel Photocatalytic H 2O 2 Generation in a Wide pH Range. ACS APPLIED MATERIALS & INTERFACES 2023; 15:43799-43809. [PMID: 37672480 DOI: 10.1021/acsami.3c09039] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Photocatalytic technique is regarded as the cleanest approach for producing H2O2. Herein, two kinds of novel polyimide COFs decorated with CQDs (namely, MPa-COFs/CQDs and MNd-COFs/CQDs) were constructed by using the one-pot hydrothermal method. Due to the electron donor role of CQDs, the recombination of photoinduced electrons and holes was suppressed after the combination of polyimide COFs with CQDs. Importantly, the introduction of CQDs not only boosted the absorbing ability of polyimide COFs toward visible light but also reduced the impedance and improved the charge transfer efficiency. After CQDs were embedded into polyimide COFs, the surface hydrophilicity of catalysts was significantly improved, which provided convenience for the water oxidation reaction. Benefiting from the electron donor-acceptor interaction between polyimide COFs and CQDs, a step-by-step two-electron oxygen reduction reaction over polyimide COFs was enhanced. More interestingly, the embedding of CQDs can create a direct two-electron water oxidation reaction pathway, which played an important role in photocatalytic H2O2 generation. Meanwhile, H+ generated from water oxidation can also be used for the reduction of oxygen to form H2O2. Under the synergistic effects of water oxidation and oxygen reduction, as-prepared MPa-COFs/CQDs-2 displayed excellent performance in photocatalytic H2O2 generation, and its yield was as high as 540 μmol/g within 60 min. In short, the current work shared an effective strategy to improve the performance of polyimide COFs in photocatalytic H2O2 production.
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Affiliation(s)
- Yanqing Cong
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Xinyue Li
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Shiyi Zhang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qiuang Zheng
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yi Zhang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Shi-Wen Lv
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
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25
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Shang H, Zhang X, Ding M, Zhang A, Wang C. A smartphone-assisted colorimetric and photothermal probe for glutathione detection based on enhanced oxidase-mimic CoFeCe three-atom nanozyme in food. Food Chem 2023; 423:136296. [PMID: 37187008 DOI: 10.1016/j.foodchem.2023.136296] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 04/25/2023] [Accepted: 04/30/2023] [Indexed: 05/17/2023]
Abstract
The rational fabrication of point-of-care testing (POCT) featuring simplicity, rapidity, low cost, portability, high sensitivity and accuracy is crucial for maintaining food safety in resource-limited locations and home healthcare but remains challenging. Herein, we report a universal colorimetric-photothermal-smartphone triple-mode sensing platform for POC food-grade glutathione (GSH) detection. This simple sensing platform for GSH detection takes merits of three techniques: commercially available filter paper, thermometer and smartphone via an excellent CoFeCe-mediated oxidase-like activity. This strategy allows CoFeCe three-atom hydroxide to efficiently convert dissolved oxygen into O2·- and catalyzes 3, 3', 5, 5'-tertamethylbenzidine (TMB) to generate an oxidized TMB with remarkable color changes and photothermal effect, resulting in a colorimetric-temperature-color triple-mode signal output. The constructed sensor exhibits high sensitivity with a limit of detection of 0.092 μM for GSH detection. We expect this sensing platform can be easily modified for the determination of GSH in commercial samples with the simple testing strips.
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Affiliation(s)
- Hongyuan Shang
- College of Pharmacy, Shanxi Medical University, Taiyuan 030001, PR China.
| | - Xiaofei Zhang
- College of Pharmacy, Shanxi Medical University, Taiyuan 030001, PR China
| | - Meili Ding
- College of Pharmacy, Shanxi Medical University, Taiyuan 030001, PR China
| | - Aiping Zhang
- College of Pharmacy, Shanxi Medical University, Taiyuan 030001, PR China.
| | - Cheng Wang
- College of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng 224007, PR China.
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26
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Atchudan R, Perumal S, Edison TNJI, Sundramoorthy AK, Vinodh R, Sangaraju S, Kishore SC, Lee YR. Natural Nitrogen-Doped Carbon Dots Obtained from Hydrothermal Carbonization of Chebulic Myrobalan and Their Sensing Ability toward Heavy Metal Ions. SENSORS (BASEL, SWITZERLAND) 2023; 23:787. [PMID: 36679584 PMCID: PMC9865267 DOI: 10.3390/s23020787] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Chebulic Myrobalan is the main ingredient in the Ayurvedic formulation Triphala, which is used for kidney and liver dysfunctions. Herein, natural nitrogen-doped carbon dots (NN-CDs) were prepared from the hydrothermal carbonization of Chebulic Myrobalan and were demonstrated to sense heavy metal ions in an aqueous medium. Briefly, the NN-CDs were developed from Chebulic Myrobalan by a single-step hydrothermal carbonization approach under a mild temperature (200 °C) without any capping and passivation agents. They were then thoroughly characterized to confirm their structural and optical properties. The resulting NN-CDs had small particles (average diameter: 2.5 ± 0.5 nm) with a narrow size distribution (1-4 nm) and a relatable degree of graphitization. They possessed bright and durable fluorescence with excitation-dependent emission behaviors. Further, the as-synthesized NN-CDs were a good fluorometric sensor for the detection of heavy metal ions in an aqueous medium. The NN-CDs showed sensitive and selective sensing platforms for Fe3+ ions; the detection limit was calculated to be 0.86 μM in the dynamic range of 5-25 μM of the ferric (Fe3+) ion concentration. Moreover, these NN-CDs could expand their application as a potential candidate for biomedical applications and offer a new method of hydrothermally carbonizing waste biomass.
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Affiliation(s)
- Raji Atchudan
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Suguna Perumal
- Department of Chemistry, Sejong University, Seoul 143747, Republic of Korea
| | | | - Ashok K. Sundramoorthy
- Department of Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Poonamallee High Road, Velappanchavadi, Chennai 600077, Tamil Nadu, India
| | - Rajangam Vinodh
- Green Hydrogen Lab (GH2Lab), Institute for Hydrogen Research (IHR), Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, QC G9A 5H7, Canada
| | - Sambasivam Sangaraju
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Somasundaram Chandra Kishore
- Saveetha School of Engineering, Department of Biomedical Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha Nagar, Chennai 602105, Tamil Nadu, India
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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27
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Thara C, Mathew S, Rose Chacko A, Mathew B. Dual Functional Carbon Nitride Dots as Electrochemical Sensor and Anticancer Agent with Chemotherapic and Photodynamic Effect. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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28
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Atchudan R, Perumal S, Edison TNJI, Sundramoorthy AK, Sangaraju S, Babu RS, Lee YR. Sustainable Synthesis of Bright Fluorescent Nitrogen-Doped Carbon Dots from Terminalia chebula for In Vitro Imaging. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27228085. [PMID: 36432186 PMCID: PMC9693165 DOI: 10.3390/molecules27228085] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 11/23/2022]
Abstract
In this study, sustainable, low-cost, and environmentally friendly biomass (Terminalia chebula) was employed as a precursor for the formation of nitrogen-doped carbon dots (N-CDs). The hydrothermally assisted Terminalia chebula fruit-derived N-CDs (TC-CDs) emitted different bright fluorescent colors under various excitation wavelengths. The prepared TC-CDs showed a spherical morphology with a narrow size distribution and excellent water dispensability due to their abundant functionalities, such as oxygen- and nitrogen-bearing molecules on the surfaces of the TC-CDs. Additionally, these TC-CDs exhibited high photostability, good biocompatibility, very low toxicity, and excellent cell permeability against HCT-116 human colon carcinoma cells. The cell viability of HCT-116 human colon carcinoma cells in the presence of TC-CDs aqueous solution was calculated by MTT assay, and cell viability was higher than 95%, even at a higher concentration of 200 μg mL-1 after 24 h incubation time. Finally, the uptake of TC-CDs by HCT-116 human colon carcinoma cells displayed distinguished blue, green, and red colors during in vitro imaging when excited by three filters with different wavelengths under a laser scanning confocal microscope. Thus, TC-CDs could be used as a potential candidate for various biomedical applications. Moreover, the conversion of low-cost/waste natural biomass into products of value promotes the sustainable development of the economy and human society.
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Affiliation(s)
- Raji Atchudan
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
- Correspondence: (R.A.); (Y.R.L.)
| | - Suguna Perumal
- Department of Chemistry, Sejong University, Seoul 143747, Republic of Korea
| | | | - Ashok K. Sundramoorthy
- Department of Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Poonamallee High Road, Velappanchavadi, Chennai 600077, Tamil Nadu, India
| | - Sambasivam Sangaraju
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Rajendran Suresh Babu
- Laboratory of Experimental and Applied Physics, Centro Federal de Educação Tecnológica, Celso Suckow da Fonseca (CEFET/RJ), Av. Maracanã 229, Rio de Janeiro 20271-110, Brazil
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
- Correspondence: (R.A.); (Y.R.L.)
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