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Tan R, Zeng M, Huang Q, Zhou N, Deng M, Li Y, Luo X. Dual-mode SERS/colorimetric sensing of nitrite in meat products based on multifunctional au NPs@COF composite. Food Chem 2024; 457:140166. [PMID: 38936123 DOI: 10.1016/j.foodchem.2024.140166] [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: 02/29/2024] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 06/29/2024]
Abstract
The presence of nitrite in food products has generated significant public concern. A simple and rapid dual-mode surface-enhanced Raman spectroscopy (SERS)/colorimetric detection of nitrite is proposed based on a diazo reaction and multifunctional gold nanoparticle-doped covalent organic framework (Au@COF) composite. Under acidic conditions, the reaction between toluidine blue and nitrite yielded a colorless diazo salt, simultaneously attenuating its characteristic absorption peak and Raman signal. The multifunctional Au@COF materials enhanced the Raman signal and ensured good reproducibility. Additionally, the reaction rates improved, and the sensitivity was enhanced due to the excellent adsorption capacity of the COF. The proposed method demonstrated high sensitivity and excellent recovery rates for nitrite detection in food samples. This approach shows potential for precisely detecting nitrite content in real-world food samples by integrating the simplicity of colorimetric analysis with the enhanced sensitivity of SERS.
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Affiliation(s)
- Rui Tan
- School of Science, Xihua University, Chengdu 610039, PR China
| | - Mei Zeng
- School of Science, Xihua University, Chengdu 610039, PR China
| | - Qiuwen Huang
- School of Science, Xihua University, Chengdu 610039, PR China
| | - Na Zhou
- School of Science, Xihua University, Chengdu 610039, PR China
| | - Mengjiang Deng
- School of Science, Xihua University, Chengdu 610039, PR China
| | - Yuanyuan Li
- Shanghai Anti-doping Laboratory, Shanghai University of Sport, Shanghai 200,438, PR China..
| | - Xiaojun Luo
- School of Science, Xihua University, Chengdu 610039, PR China; Asymmetric Synthesis and Chiral technology Key Laboratory of Sichuan Province, Chengdu 610,039, PR China..
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Zheng Z, Qi L, Luan X, Zhao S, Xue Y, Li Y. Growing highly ordered Pt and Mn bimetallic single atomic layers over graphdiyne. Nat Commun 2024; 15:7331. [PMID: 39187493 PMCID: PMC11347568 DOI: 10.1038/s41467-024-51687-x] [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: 01/09/2024] [Accepted: 08/14/2024] [Indexed: 08/28/2024] Open
Abstract
Controlling the precise growth of atoms is necessary to achieve manipulation of atomic composition and atomic position, regulation of electronic structure, and an understanding of reactions at the atomic level. Herein, we report a facile method for ordered anchoring of zero-valent platinum and manganese atoms with single-atom thickness on graphdiyne under mild conditions. Due to strong and incomplete charge transfer between graphdiyne and metal atoms, the formation of metal clusters and nanoparticles can be inhibited. The size, composition and structure of the bimetallic nanoplates are precisely controlled by the natural structure-limiting effect of graphdiyne. Experimental characterization clearly demonstrates such a fine control process. Electrochemical measurements show that the active site of platinum-manganese interface on graphdiyne guarantees the high catalytic activity and selectivity (~100%) for alkene-to-diol conversion. This work lays a solid foundation for obtaining high-performance nanomaterials by the atomic engineering of active site.
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Affiliation(s)
- Zhiqiang Zheng
- Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion, Science Center for Material Creation and Energy Conversion, School of Chemistry and Chemical Engineering, Shandong University Jinan 250100, Jinan, China
| | - Lu Qi
- Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion, Science Center for Material Creation and Energy Conversion, School of Chemistry and Chemical Engineering, Shandong University Jinan 250100, Jinan, China
| | - Xiaoyu Luan
- Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion, Science Center for Material Creation and Energy Conversion, School of Chemistry and Chemical Engineering, Shandong University Jinan 250100, Jinan, China
| | - Shuya Zhao
- Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion, Science Center for Material Creation and Energy Conversion, School of Chemistry and Chemical Engineering, Shandong University Jinan 250100, Jinan, China
| | - Yurui Xue
- Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion, Science Center for Material Creation and Energy Conversion, School of Chemistry and Chemical Engineering, Shandong University Jinan 250100, Jinan, China.
- CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
| | - Yuliang Li
- Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion, Science Center for Material Creation and Energy Conversion, School of Chemistry and Chemical Engineering, Shandong University Jinan 250100, Jinan, China.
- CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China.
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Feng X, Liu J, Kong Y, Zhang Z, Zhang Z, Li S, Tong L, Gao X, Zhang J. Cu/Cu xO/Graphdiyne Tandem Catalyst for Efficient Electrocatalytic Nitrate Reduction to Ammonia. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2405660. [PMID: 38884637 DOI: 10.1002/adma.202405660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 05/23/2024] [Indexed: 06/18/2024]
Abstract
The electrocatalytic reduction reaction of nitrate (NO3 -) to ammonia (NH3) is a feasible way to achieve artificial nitrogen cycle. However, the low yield rate and poor selectivity toward NH3 product is a technical challenge. Here a graphdiyne (GDY)-based tandem catalyst featuring Cu/CuxO nanoparticles anchored to GDY support (termed Cu/CuxO/GDY) for efficient electrocatalytic NO3 - reduction is presented. A high NH3 yield rate of 25.4 mg h-1 mgcat. -1 (25.4 mg h-1 cm-2) with a Faradaic efficiency of 99.8% at an applied potential of -0.8 V versus RHE using the designed catalyst is achieved. These performance metrics outperform most reported NO3 - to NH3 catalysts in the alkaline media. Electrochemical measurements and density functional theory reveal that the NO3 - preferentially attacks Cu/CuxO, and the GDY can effectively catalyze the reduction of NO2 - to NH3. This work highlights the efficacy of GDY as a new class of tandem catalysts for the artificial nitrogen cycle and provides powerful guidelines for the design of tandem electrocatalysts.
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Affiliation(s)
- Xueting Feng
- Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Jiyuan Liu
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ya Kong
- Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Zixuan Zhang
- Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Zedong Zhang
- Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Shuzhou Li
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Lianming Tong
- Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Xin Gao
- Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Jin Zhang
- Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
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Zhang Z, Feng X, Zhang Z, Chen L, Liu W, Tong L, Gao X, Zhang J. Graphdiyne Enabled Nitrogen Vacancy Formation in Copper Nitride for Efficient Ammonia Synthesis. J Am Chem Soc 2024; 146:14898-14904. [PMID: 38749059 DOI: 10.1021/jacs.4c04985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
The electrocatalytic reduction of nitrate is promising for sustainable ammonia synthesis but suffers from slow reduction kinetics and multiple competing reactions. Here, we report a catalyst featuring copper nitride (Cu3N) anchored on a novel graphdiyne support (termed Cu3N/GDY), which is used for electrocatalytic reduction of nitrate to produce ammonia. The GDY absorbed hydrogen and enabled nitrogen (N) vacancy formation in Cu3N for the fast nitrate reduction reaction (NO3RR). Further, the distinct absorption sites formed by GDY and N vacancy enabled the excellent selectivity and stability of NO3RR. Notably, the Cu3N/GDY catalyst achieved a high ammonia yield (YNH3) up to 35280 μg h-1 mgcat.-1 and a high Faradaic efficiency (FE) of 98.1% using 0.1 M NO3- at -0.9 V versus a reversible hydrogen electrode (RHE). Using electron paramagnetic resonance (EPR) technology and in situ X-ray absorption fine structure (XAFS) spectroscopy measurement, we visualized the N vacancy formation in Cu3N and electrocatalytic NO3RR enabled by GDY. These findings show the promise of GDY in sustainable ammonia synthesis and highlight the efficacy of Cu3N/GDY as a catalyst.
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Affiliation(s)
- Zixuan Zhang
- Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P.R. China
- School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China
| | - Xueting Feng
- Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P.R. China
- School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China
| | - Zedong Zhang
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Long Chen
- College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences (Ministry of Education), Peking University, Beijing 100871, P.R. China
| | - Wen Liu
- College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences (Ministry of Education), Peking University, Beijing 100871, P.R. China
| | - Lianming Tong
- Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P.R. China
| | - Xin Gao
- School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China
| | - Jin Zhang
- Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P.R. China
- School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China
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5
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Jiang J, Wang X, Bao Y, Shen F, Wang G, Li K, Lin Y. Harnessing Graphdiyne for Selective Cu 2+ Detection: A Promising Tool for Parkinson's Disease Diagnostics and Pathogenesis. ACS Sens 2024; 9:2317-2324. [PMID: 38752502 DOI: 10.1021/acssensors.4c00633] [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] [Indexed: 05/25/2024]
Abstract
Cu2+ accelerates the viral-like propagation of α-synuclein fibrils and plays a key role in the pathogenesis of Parkinson's disease (PD). Therefore, the accurate detection of Cu2+ is essential for the diagnosis of PD and other neurological diseases. The Cu2+ detection process is impeded by substances that have similar electrochemical properties. In this study, graphdiyne (GDY), a new kind of carbon allotrope with strong electron-donating ability, was utilized for the highly selective detection of Cu2+ by taking advantage of its outstanding adsorption capacity for Cu2+. Density functional theory (DFT) calculations show that Cu atoms are adsorbed in the cavity of GDY, and the absorption energy between Cu and C atoms is higher than that of graphene (GR), indicating that the cavity of GDY is favorable for the adsorption of Cu atoms and electrochemical sensing. The GDY-based electrochemical sensor can effectively avoid the interference of amino acids, metal ions and neurotransmitters and has a high sensitivity of 9.77 μA·μM-1·cm-2, with a minimum detectable concentration of 200 nM. During the investigating pathogenesis and therapeutic process of PD with α-synuclein as the diagnostic standard, the concentration of Cu2+ in cells before and after L-DOPA and GSH treatments were examined, and it was found that Cu2+ exhibits high potential as a biomarker for PD. This study not only harnesses the favorable adsorption of the GDY and Cu2+ to improve the specificity of ion detection but also provide clues for deeper understanding of the role of Cu2+ in neurobiology and neurological diseases.
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Affiliation(s)
- Jing Jiang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Xu Wang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yongqi Bao
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Fangxu Shen
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Guo Wang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Kai Li
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yuqing Lin
- Department of Chemistry, Capital Normal University, Beijing 100048, China
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Zhan C, Guan Z, Yu L, Jing T, Jia H, Chen X, Gao R. Microfluidics-aided fabrication of 3D micro-nano hierarchical SERS substrate for rapid detection of dual hepatocellular carcinoma biomarkers. LAB ON A CHIP 2024; 24:528-536. [PMID: 38168831 DOI: 10.1039/d3lc00907f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The simultaneous analysis of trace amounts of dual biomarkers is crucial in the early diagnosis, treatment, and prognosis of hepatocellular carcinoma (HCC). In this study, we prepared SERS-active hydrogel microparticles (SAHMs) with 3D hierarchical gold nanoparticles (AuNPs) micro-nanostructures by microdroplet technology and in situ synthesis, which demonstrated high reproducibility and sensitivity. Compared with traditional 2D SERS substrates, this newly prepared 3D SERS substrate provided a high density of nano-wrinkled structures and numerous AuNPs. Furthermore, a newly designed SERS-active substrate was proposed for the simultaneous microfluidic detection of AFP and AFU. The Raman signals of sandwich immunocomplexes on the surface of the SAHMs were measured for the trace analysis of these biomarkers. The proposed microfluidic platform achieved AFP and AFU detection in the range of 0.1-100 ng mL-1 and 0.01-100 ng mL-1, respectively, which represents a good response. Indeed, this platform is easy to fabricate, of low cost and has short detection time and comparable detection limits to other methods. As far as we know, this is the first study to achieve the simultaneous detection of AFP and AFU on a microfluidic platform. Therefore, we proposed a new simultaneous detection platform for dual HCC biomarkers that shows strong potential for the early diagnosis of HCC.
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Affiliation(s)
- Changbiao Zhan
- College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Zihao Guan
- College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Liandong Yu
- College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Tongmei Jing
- College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Huakun Jia
- College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Xiaozhe Chen
- College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Rongke Gao
- College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
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