1
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Song X, Hou X, Zhao Q, Ma Z, Ren Y. Fluorescence-quenching mechanisms of novel isomorphic Zn/Cd coordination polymers for selective nitrobenzene detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123729. [PMID: 38086232 DOI: 10.1016/j.saa.2023.123729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 01/13/2024]
Abstract
Nitroaromatic compounds in aqueous undermine environmental sustainability and affect human health. The development of a fluorescent sensor capable of efficiently and selectively detecting trace amounts of nitroaromatic compounds presents a considerable challenge. This study introduced Zn/Cd isomeric coordination polymers (Zn-H2CIA-1/Cd-H2CIA-2), which are synthesized using 5-((4-carboxybenzyl)oxy)isophthalic acid (5-H3CIA) and 1,10-phenanthroline (Phen). The polymers have zero-dimensional discrete crystal structure with a six-coordinated scissor-like shape. The two coordination polymers can be used as fluorescent sensors for detecting nitrobenzene (NB) and demonstrated favorable sensitivity, with detection limits of 1.95 × 10-8 and 4.66 × 10-7 mol/L, respectively. Zn-H2CIA-1 exhibited stronger fluorescence and a more sensitive response to NB compared with Cd-H2CIA-2. To elucidate their fluorescence-quenching mechanisms, we analyzed Zn-H2CIA-1 by performing DFT and TD-DFT calculations. The pore structure, density of states, excitation energy, hole-electron distribution, and orbital composition were analyzed. The suitable size of pores in Zn-H2CIA-1 is the main reason for its high NB selectivity. Moreover, intermolecular π-π stacking interactions result in an orbital overlap between Zn-H2CIA-1 and NB, enabling the transfer of electrons from Zn-H2CIA-1 to NB. This electron transfer is identified as the fundamental cause of fluorescence quenching in Zn-H2CIA-1.
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Affiliation(s)
- Xiaoming Song
- Shaanxi Key Laboratory of Chemical Reaction Engineering, Laboratory of New Energy and New Function Materials, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China
| | - Xiufang Hou
- Shaanxi Key Laboratory of Chemical Reaction Engineering, Laboratory of New Energy and New Function Materials, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China.
| | - Qingxia Zhao
- Shaanxi Key Laboratory of Chemical Reaction Engineering, Laboratory of New Energy and New Function Materials, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China
| | - Zhihu Ma
- Shaanxi Key Laboratory of Chemical Reaction Engineering, Laboratory of New Energy and New Function Materials, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China
| | - Yixia Ren
- Shaanxi Key Laboratory of Chemical Reaction Engineering, Laboratory of New Energy and New Function Materials, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China.
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2
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Hu JH, Zhang W, Ren CX, Xiong Y, Zhang JY, He J, Huang Y, Tao Z, Xiao X. A novel portable smart phone sensing platform based on a supramolecular fluorescence probe for quick visual quantitative detection of picric acid. Anal Chim Acta 2023; 1254:341095. [PMID: 37005021 DOI: 10.1016/j.aca.2023.341095] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/04/2023] [Accepted: 03/13/2023] [Indexed: 04/03/2023]
Abstract
Picric acid (PA) is a lethal explosive substance that is easily soluble in water and harmful to the environment. Here, a supramolecular polymer material BTPY@Q[8] with aggregation induced emission (AIE) was prepared by supramolecular self-assembly of cucurbit uril (Q[8]) and 1,3,5-tris[4-(pyridin-4-yl) phenyl] benzene derivative (BTPY), which exhibited aggregation-induced fluorescence enhancement. To this supramolecular self-assembly, the addition of a number of nitrophenols was found to have no obvious effect on the fluorescence, however on addition of PA, the fluorescence intensity underwent a dramatic quench. For PA, BTPY@Q[8] had sensitive specificity and effective selectivity. Based on this, a quick and simple on-site visual PA fluorescence quantitative detection platform was developed using smart phones, and the platform was used to monitor temperature. Machine learning (ML) is a popular pattern recognition technology, which can accurately predict the results from data. Therefore, ML has much more potential for analyzing and improving sensing data than the widely used statistical pattern recognition method. In the field of analytical science, the sensing platform offers a reliable method for the quantitative detection of PA that can be applied to other analytes or micropollutant screening.
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3
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Christopher Leslee DB, Karuppannan S. Unique carbazole – N,N-dimethylanline linked chalcone a colorimetric and fluorescent probe for picric acid explosive and its test strip analysis. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Gao G, Li X, Lü C, An Y. Accurately selected 1,3,4-thiadiazole and coumarin unit to construct fluorescent probes that effectively detect 2,4,6-trinitrophenol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 270:120784. [PMID: 35016062 DOI: 10.1016/j.saa.2021.120784] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 12/11/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
Two remarkablely fluorimetric probes were developed to rapidly detect 2,4,6-trinitrophenol (TNP). With the help of density functional theory (DFT) calculations, we confirmed that using 1,3,4-thiadiazole skeleton as recognition group and coumarin unit as fluorophore would show excellent application prospects in terms of TNP detection. The probes LK-1 and LK-2 displayed green and orange emission with fluorescence quenching yield as high as 83.7% and 75.1% in solution. Further evaluation demonstrated that they display outstanding selectivity and sensitivity for rapid and visual detection of TNP. Both fluorescent color and fluorescence emission spectrum had significant changes and these phenomena could easily observe via naked-eye and analytical instrument. The detection limits of them were 97 nM and 71 nM. What's more, application in real water samples and solid phase paper tests illustrated the practical significance of detection of TNP.
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Affiliation(s)
- Ge Gao
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Huanghe Road 850#, Dalian 116029, PR China
| | - Xuejiao Li
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Huanghe Road 850#, Dalian 116029, PR China
| | - Chengwei Lü
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Huanghe Road 850#, Dalian 116029, PR China.
| | - Yue An
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Huanghe Road 850#, Dalian 116029, PR China
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5
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Sequential detection of vitamin B6 cofactors and nitroaromatics by using albumin-stabilized fluorescent copper nanoclusters. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106778] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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6
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MU J, YANG JL, ZHANG DW, JIA Q. Progress in Preparation of Metal Nanoclusters and Their Application in Detection of Environmental Pollutants. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1016/s1872-2040(21)60082-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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7
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Feng X, Zhang J, Wang J, Han A, Fang G, Liu J, Wang S. The stabilization of fluorescent copper nanoclusters by dialdehyde cellulose and their use in mercury ion sensing. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:3130-3136. [PMID: 32930173 DOI: 10.1039/d0ay00657b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In the synthesis of metal nanoclusters (NCs), small molecules are widely used as capping ligands and reducing agents. However, metal NCs are usually sensitive to solvents and aerobic atmosphere and are also prone to oxidation; thus, their photonic properties deteriorate. In this work, 4-aminothiophenol (PATP) was used as a ligand to prepare Cu NCs and their fluorescence, morphology, and electronic states were characterized. The as-prepared Cu NCs could be dispersed in aqueous media and their fluorescence was sensitive to Hg2+. It was found that after mixing Cu NCs with 2,3-dialdehyde cellulose (DAC) prepared via oxidation by NaIO4, the fluorescence stability of Cu NCs could be enhanced from overnight to 7 days. This might be due to the reaction of the amine group of PATP with the aldehyde group of DAC to form Schiff bases, which are then reduced to form more stable C-N bonds via reduction by NaBH4. Therefore, Cu NCs were attached to a rigid skeleton and their stability increased. Furthermore, the composite of Cu NCs mixed with DAC could be used to prepare colorimetric cards for the rapid detection of Hg2+ with high sensitivity.
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Affiliation(s)
- Xiangyu Feng
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, 300457 Tianjin, China.
| | - Jiaying Zhang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, 300457 Tianjin, China.
| | - Jing Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, 300457 Tianjin, China.
| | - Ailing Han
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, 300457 Tianjin, China.
| | - Guozhen Fang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, 300457 Tianjin, China.
| | - Jifeng Liu
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, 300457 Tianjin, China.
| | - Shuo Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, 300457 Tianjin, China.
- Research Centre of Food Science and Human Health, School of Medicine, Nankai University, 300071 Tianjin, China
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Nitrogen/sulfur-co-doped carbon quantum dots: a biocompatible material for the selective detection of picric acid in aqueous solution and living cells. Anal Bioanal Chem 2020; 412:3753-3763. [PMID: 32300842 DOI: 10.1007/s00216-020-02629-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/20/2020] [Accepted: 03/30/2020] [Indexed: 10/24/2022]
Abstract
Here, a fast and eco-friendly one-pot hydrothermal technique is utilized for the synthesis of nitrogen/sulfur-co-doped fluorescent carbon quantum dots (NS-CQDs) from a simple precursor of citric acid (CA) and thiosemicarbazide (TSC). The obtained NS-CQDs exhibited strong blue emission under UV light, with fluorescence quantum yield (QY) of ~37.8%. The Commission internationale de l'eclairage (CIE) coordinates originated at (0.15, 0.07), which confirmed the blue fluorescence of the synthesized NS-CQDs. Interestingly, the prepared NS-CQDs were successfully used as a selective nanoprobe for the monitoring of environmentally hazardous explosive picric acid (PA) in different nitro- and non-nitro-aromatic derivatives of PA. The mechanism of the NS-CQDs was also explored, and was posited to occur via the fluorescence resonance electron transfer (FRET) process and non-fluorescent complex formation. Importantly, this system possesses excellent biocompatibility and low cytotoxicity in HeLa cervical cancer cells; hence, it can potentially be used for PA detection in analytical, environmental, and pathological applications. Furthermore, the practical applicability of the proposed sensing system to pond water demonstrated the feasibility of our system along with good recovery. Graphical abstract.
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9
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Chemically modified chitosan‑sodium alginate as chemo-sensor adsorbent for the detection of picric acid and removal of biebrich scarlet. Int J Biol Macromol 2020; 147:582-594. [DOI: 10.1016/j.ijbiomac.2020.01.090] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 01/03/2020] [Accepted: 01/09/2020] [Indexed: 02/06/2023]
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10
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Zhao J, Fan Z. Aggregation-induced phosphorescence quenching method for the detection of picric acid based on melamine-passivated Mn-doped ZnS quantum dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 223:117323. [PMID: 31272039 DOI: 10.1016/j.saa.2019.117323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/24/2019] [Accepted: 06/25/2019] [Indexed: 06/09/2023]
Abstract
Melamine (MA)-passivated Mn-doped ZnS quantum dots (QDs) were synthesized by a hydrothermal method. The MA-passivated QDs can form a charge-transfer complex with picric acid (PA) at 80 °C, thereby quenching the phosphorescence of the QDs. A sensitive method for detecting PA was established based on this principle of phosphorescence quenching. When the PA concentration ranged from 2.0 to 180 ng mL-1, the concentration was linearly related to the quenching intensity of the QDs, with a detection limit of 1.4 ng mL-1. When applied to detect PA in environmental water samples, the proposed method showed superior analytical performance compared with other PA analysis methods. Furthermore, we verified the static quenching mechanism by density functional theory. MA on the surface of QDs and PA formed a stable structure with a binding energy of 12.43 eV.
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Affiliation(s)
- Jie Zhao
- School of Chemistry and Materials Science, Shanxi Normal University, Linfen 041004, PR China
| | - Zhefeng Fan
- School of Chemistry and Materials Science, Shanxi Normal University, Linfen 041004, PR China.
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11
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Zhang E, Ju P, Zhang Z, Yang H, Tang L, Hou X, You J, Wang JJ. A novel multi-purpose Zn-MOF fluorescent sensor for 2,4-dinitrophenylhydrazine, picric acid, La 3+ and Ca 2+: Synthesis, structure, selectivity, sensitivity and recyclability. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 222:117207. [PMID: 31174154 DOI: 10.1016/j.saa.2019.117207] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 05/15/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
A new three-dimensional luminescence Zn-MOF sensor with the molecular formula [Zn4(μ3-OH)2(ptptc)1.5(DMA)(H2O)2]·2DMA (complex 1) for the selective sensing of 2,4-dinitrophenylhydrazine (2,4-DNPH), picric acid (PA), La3+ and Ca2+ has been synthesized from terphenyl-3,3',5,5'-tetracarboxylic acid (H4ptptc) and zinc nitrate under solvothermal conditions. XRD analysis reveals that complex 1 crystallizes in monoclinic system P21/n space group and consists of a three-dimensional network with one-dimensional channels, which are expected to facilitate the diffusion, concentration and detection processes. Real-time fluorescence quenching responses and good reversibility were observed in the fluorescence titration experiments with nano-molar scale detection limits for 2,4-dinitrophenylhydrazine (2,4-DNPH, 100 nM) and picric acid (PA, 500 nM). Noticeable emission band shift from 365 nm to 420 nm was observed when treated complex 1 with La3+ and a new emission band centered at 475 nm appeared when treated complex 1 with Ca2+ in the metal ions sensing experiments. In virtue of its high selectively, good sensitively and recyclability complex 1 could be a promising fluorescent sensor for explosives and metal ions.
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Affiliation(s)
- Ensheng Zhang
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, PR China; Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, PR China
| | - Ping Ju
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, PR China; Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, PR China.
| | - Ze Zhang
- Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, PR China
| | - Hua Yang
- Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, PR China
| | - Long Tang
- Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, PR China
| | - Xiangyang Hou
- Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, PR China
| | - Jinmao You
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, PR China
| | - Ji-Jiang Wang
- Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, PR China
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12
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Wang J, Yang Y, Sun G, Zheng M, Xie Z. A convenient and universal platform for sensing environmental nitro-aromatic explosives based on amphiphilic carbon dots. ENVIRONMENTAL RESEARCH 2019; 177:108621. [PMID: 31421450 DOI: 10.1016/j.envres.2019.108621] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 06/10/2023]
Abstract
2,4,6-trinitrophenol (TNP) is environmentally deleterious substance that has been of pressing societal concern. Therefore, developing a convenient and reliable platforms for its fast and efficient detection is of paramount importance from security point of view. Herein, amphiphilic fluorescent carbon dots (CDs) were prepared by a simple solvothermal method. CDs exhibit high selectivity and sensitivity on TNP in the polar and apolar solvent and even natural water samples. Moreover, the simple and portable indicator paper can be prepared conveniently and used for sensing TNP visually with high sensitivity and fast response. Research findings obtained from this study would assist in the development of portable devices for the on-site and real-time detection of environmental hazards.
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Affiliation(s)
- Jingwen Wang
- School of Chemical Engineering, School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 2055 Yanan Street, Changchun, Jilin, 130012, PR China
| | - Yushan Yang
- School of Chemical Engineering, School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 2055 Yanan Street, Changchun, Jilin, 130012, PR China
| | - Guoying Sun
- School of Chemical Engineering, School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 2055 Yanan Street, Changchun, Jilin, 130012, PR China
| | - Min Zheng
- School of Chemical Engineering, School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, 2055 Yanan Street, Changchun, Jilin, 130012, PR China.
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin, 130022, PR China.
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13
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Guo P, Zheng S, Wang Y, Zhuang Q, Ni Y. Synthesis of Fluorescent Tremella-like Carbon Nanosheets and Their Application for Sensing of 2,4,6-trinitrophenol. ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1636809] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Pan Guo
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Song Zheng
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Yong Wang
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, China
| | - Qianfen Zhuang
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Yongnian Ni
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
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Abbasi F, Akbarinejad A, Alizadeh N. CdS QDs/N-methylpolypyrrole hybrids as fluorescent probe for ultrasensitive and selective detection of picric acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 216:230-235. [PMID: 30903871 DOI: 10.1016/j.saa.2019.03.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 03/11/2019] [Accepted: 03/13/2019] [Indexed: 06/09/2023]
Abstract
Inorganic-organic hybrids are an advanced class of luminescent materials showing great promise for fabrication of highly sensitive and selective optical sensors. In the present study, a novel CdS quantum dots/N-methylpolypyrrole (CdS QDs/NMPPY) hybrid was synthesized via the direct polymerization of NMPPY on L-cysteine capped CdS QD aggregates. A number of characterization techniques including FTIR, DLS, FESEM, UV-vis, and fluorescence spectroscopies were used to study the chemical composition, morphology and optical properties of the resultant QDs/polymer hybrid. The as-synthesized CdS QDs/NMPPY hybrid shows a bright emission at 459 nm under excitation at 367 nm in water. Also the results show the role of sodium dodecyl benzenesulfonate (SDBS) to control the mechanism of synthesis and spectroscopic of the prepared CdS/NMPPY hybrid. Moreover, in this work was reported the direct hybridization procedure without other modification such as ligand exchange and coating. We demonstrated that the hybridization of CdS QDs with NMPPY polymer leads to a significant change in fluorescence sensing properties toward nitroaromatic compounds. Further studies unveiled that the emission of CdS QDs/NMPPY hybrid is strongly and selectively quenched by picric acid molecule with a large Stern-Volmer constant of 843,900 M-1 and an excellent detection limit of 4.6 × 10-7 M. The changes in the UV-vis spectra of picric acid solutions in the presence and absence of CdS QDs/NMPPY hybrid displayed that the fluorescence quenching occurs through a static quenching mechanism. Finally, the proposed CdS QDs/NMPPY sensor was successfully utilized to determine the amount of picric acid in real water samples.
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Affiliation(s)
- Fatemeh Abbasi
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
| | - Alireza Akbarinejad
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
| | - Naader Alizadeh
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran.
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15
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Areti S, Bandaru S, Kandi R, Rao CP. Role of Aromatic Moiety in the Probe Property toward Picric Acid: Synthesis, Crystal Structure, Spectroscopy, Microscopy, and Computational Modeling of a Knoevenagel Condensation Product of d-Glucose. ACS OMEGA 2019; 4:1167-1177. [PMID: 31459392 PMCID: PMC6648576 DOI: 10.1021/acsomega.8b03352] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 01/02/2019] [Indexed: 05/31/2023]
Abstract
Molecular probes for picric acid (PA) in both solution and solid states are important owing to their wide usage in industry. This paper deals with the design and development of a glucosyl conjugate of pyrene (L 1 ) along with control molecular systems, possessing anthracenyl (L 2 ), naphtyl (L 3 ), and phenyl (L 4 ) moieties, via Knoevenagel condensation of 2,4-pentanedione with d-glucose. The selectivity of L 1 toward PA has been demonstrated on the basis of fluorescence and absorption spectroscopy, and the species of recognition by electrospray ionization mass spectrometry. The role of the aromatic group in the selective receptor property has been addressed among L 1 , L 2 , L 3 , and L 4 . The structural features of the {L 1 + PA} complex were established by density functional theory computations. L 1 was demonstrated to detect PA in solid state selectively over other nitroaromatic compounds (NACs). To study the utility of L 1 in film, cellulose paper strips coated with L 1 were used and demonstrated the selective detection of PA. The observed microstructural features of L 1 and its complex {L 1 + PA} differ distinctly in both atomic force microscopy and scanning electron microscopy, all in the support of the complex formation. Thus, L 1 was demonstrated as a sensitive, selective, and inexpensive probe for PA over several NACs by visual, spectral, and microscopy methods.
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Affiliation(s)
- Sivaiah Areti
- Department
of Chemistry, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
| | - Sateesh Bandaru
- Beijing
Computational Science Research Center, Zhongguancun, Software Park II, Beijing 100084, China
| | - Ravinder Kandi
- Department
of Chemistry, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
| | - Chebrolu Pulla Rao
- Department
of Chemistry, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
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16
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Rajamanikandan R, Ilanchelian M. Fluorescence Sensing Approach for High Specific Detection of 2,4,6-Trinitrophenol Using Bright Cyan Blue Color-Emittive Poly(vinylpyrrolidone)-Supported Copper Nanoclusters as a Fluorophore. ACS OMEGA 2018; 3:18251-18257. [PMID: 31458403 PMCID: PMC6644161 DOI: 10.1021/acsomega.8b03065] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 12/12/2018] [Indexed: 05/23/2023]
Abstract
In this paper, we illustrate an efficient, convenient, and simplistic fluorescence technique for the specific identification for nitro explosive 2,4,6-trinitrophenol (TNP) in 100% water medium by bright cyan blue color-emitting poly(vinylpyrrolidone)-supported copper nanoclusters (PVP-CuNCs) as a fluorescence probe. PVP-CuNCs exhibited linear fluorescence quenching response toward the increasing concentration of TNP analyte. Surprisingly, TNP only reduces the emission signal of PVP-CuNCs, whereas various nitro explosives cause very slight reducing emission intensity, validating the good specificity of the PVP-CuNC probe toward TNP. The highest Stern-Volmer quenching constant (K sv) value of 1.03 × 107 dm3 mol-1 and the extremely lowest limit of detection of 81.44 × 10-12 mol dm-3 were achieved solely for TNP in 100% water medium which is astonishing and exclusive for this nanoprobe. The sensing pathway for the high sensitivity of PVP-CuNCs assay to quantify the TNP is expected to combine with the inner filter effect process and static quenching. The static quenching mechanism between TNP and PVP-CuNCs is further verified by fluorescence decay measurements. Furthermore, the developed fluorescence sensing platform is applied for the quantification of a trace amount of TNP in real samples named dam water, sea water, and match stick.
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Water-dispersed fluorescent silicon nanodots as probes for fluorometric determination of picric acid via energy transfer. Mikrochim Acta 2018; 186:18. [DOI: 10.1007/s00604-018-3135-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 11/29/2018] [Indexed: 10/27/2022]
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18
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Strongly fluorescent cysteamine-coated copper nanoclusters as a fluorescent probe for determination of picric acid. Mikrochim Acta 2018; 185:507. [DOI: 10.1007/s00604-018-3049-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/06/2018] [Indexed: 12/11/2022]
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19
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Copper JE, Budgeon LR, Foutz CA, van Rossum DB, Vanselow DJ, Hubley MJ, Clark DP, Mandrell DT, Cheng KC. Comparative analysis of fixation and embedding techniques for optimized histological preparation of zebrafish. Comp Biochem Physiol C Toxicol Pharmacol 2018; 208:38-46. [PMID: 29157956 PMCID: PMC5936644 DOI: 10.1016/j.cbpc.2017.11.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/14/2017] [Accepted: 11/14/2017] [Indexed: 10/18/2022]
Abstract
In recognition of the importance of zebrafish as a model organism for studying human disease, we have created zebrafish content for a web-based reference atlas of microanatomy for comparing histology and histopathology between model systems and with humans (http://bio-atlas.psu.edu). Fixation, decalcification, embedding, and sectioning of zebrafish were optimized to maximize section quality. A comparison of protocols involving six fixatives showed that 10% Neutral Buffered Formalin at 21°C for 24h yielded excellent results. Sectioning of juveniles and adults requires bone decalcification; EDTA at 0.35M produced effective decalcification in 21-day-old juveniles through adults (≥~3Months). To improve section plane consistency in sets of larvae, we have developed new array casting molds based on the outside contours of larvae derived from 3D microCT images. Tissue discontinuity in sections, a common barrier to creating quality sections of zebrafish, was minimized by processing and embedding the formalin-fixed zebrafish tissues in plasticized forms of paraffin wax, and by periodic hydration of the block surface in ice water between sets of sections. Optimal H&E (Hematoxylin and Eosin) staining was achieved through refinement of standard protocols. High quality slide scans produced from glass histology slides were digitally processed to maximize image quality, and experimental replicates posted as full slides as part of this publication. Modifications to tissue processing are still needed to eliminate the need for block surface hydration. The further addition of slide collections from other model systems and 3D tools for visualizing tissue architecture would greatly increase the utility of the digital atlas.
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Affiliation(s)
- Jean E Copper
- Jake Gittlen Cancer Research Laboratories, Department of Pathology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Lynn R Budgeon
- Jake Gittlen Cancer Research Laboratories, Department of Pathology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Christina A Foutz
- Jake Gittlen Cancer Research Laboratories, Department of Pathology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Damian B van Rossum
- Jake Gittlen Cancer Research Laboratories, Department of Pathology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Daniel J Vanselow
- Jake Gittlen Cancer Research Laboratories, Department of Pathology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Margaret J Hubley
- Jake Gittlen Cancer Research Laboratories, Department of Pathology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Darin P Clark
- Jake Gittlen Cancer Research Laboratories, Department of Pathology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | | | - Keith C Cheng
- Jake Gittlen Cancer Research Laboratories, Department of Pathology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA.
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20
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Chaudhary S, Sharma H, Milton MD. Novel 2-Arylbenzothiazoles: Selective Chromogenic and Fluorescent Probes for the Detection of Picric Acid. ChemistrySelect 2018. [DOI: 10.1002/slct.201800645] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shweta Chaudhary
- Department of Chemistry; University of Delhi; Delhi 110 007 India
| | - Himshikha Sharma
- Department of Chemistry; University of Delhi; Delhi 110 007 India
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21
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Pyridoxamine driven selective turn-off detection of picric acid using glutathione stabilized fluorescent copper nanoclusters and its applications with chemically modified cellulose strips. Biosens Bioelectron 2018; 102:196-203. [DOI: 10.1016/j.bios.2017.11.031] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 11/06/2017] [Accepted: 11/07/2017] [Indexed: 10/18/2022]
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22
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Essner JB, Chen X, Wood TD, Baker GA. Tandem copper and gold nanoclusters for two-color ratiometric explosives detection. Analyst 2018; 143:1036-1041. [PMID: 29423479 PMCID: PMC5831381 DOI: 10.1039/c7an01867c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a sensory platform for the determination of common explosive species (e.g., TNT, PETN, RDX) based on the differential response from two different luminescent metal nanoclusters. In particular, whereas the red emission from bovine serum albumin-protected gold nanoclusters was strongly quenched by nitro-, nitrate-, and nitroamine-containing explosive organic molecules, blue-emitting glutathione-capped copper nanoclusters proved inert to quenching by these same analytes, instead showing evidence for aggregation-induced emission enhancement (AIEE). As a result, this discrete gold/copper nanocluster pairing provides a dual-probe, ratiometric (red-to-blue) system signaling the presence of TNT and other common explosives. This strategy opens up new potential for nanocluster-based analyte signaling, with implications to fluorescence resonance energy transfer (FRET) strategies as well.
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Affiliation(s)
- Jeremy B Essner
- Department of Chemistry, University of Missouri, Columbia, MO 65211, USA.
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23
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Zhang E, Ju P, Guo P, Hou X, Hou X, Lv H, Wang JJ, Zhang Y. A FRET-based fluorescent and colorimetric probe for the specific detection of picric acid. RSC Adv 2018; 8:31658-31665. [PMID: 35548203 PMCID: PMC9085897 DOI: 10.1039/c8ra05468a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/04/2018] [Indexed: 11/21/2022] Open
Abstract
Picric acid (PA) as an environmental pollutant and high explosive, has recently received considerable attention. In this paper, a novel fluorescent and colorimetric chemo-probe (L) for the highly selective and sensitive detection of picric acid has been revealed. The probe was facilely constructed using rhodamine B, ethylenediamine and 4-(9H-carbazol-9-yl)benzoyl chloride. Significant fluorescence changes based on an intramolecular fluorescence resonance energy transfer (FRET) effect followed by a distinct color change from colorless to pink were observed after addition of picric acid to the probe solution. Selectivity measurements revealed that the as-synthesized probe exhibited high selectivity toward PA in the presence or absence of other analytes. The experimental titration results suggested that the as-synthesized probe is an effective tool for detection of PA with a nanomolar scale detection limit (820 nM) and could also serve as a “naked-eye” indicator for PA detection. A FRET-based fluorescent and colorimetric chemo-sensor has been designed and synthesized for the selective and sensitive detection of picric acid.![]()
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Affiliation(s)
- Ensheng Zhang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Ping Ju
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Pu Guo
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Xiufang Hou
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Xueyan Hou
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Haiming Lv
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Ji-jiang Wang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Yuqi Zhang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
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24
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Ju P, Zhang E, Jiang L, Zhang Z, Hou X, Zhang Y, Yang H, Wang J. A novel microporous Tb-MOF fluorescent sensor for highly selective and sensitive detection of picric acid. RSC Adv 2018; 8:21671-21678. [PMID: 35541725 PMCID: PMC9081240 DOI: 10.1039/c8ra02602e] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 05/24/2018] [Indexed: 01/12/2023] Open
Abstract
A new three-dimensional metal–organic framework (MOF) sensor with molecular formula (C2H6NH2)2[Tb2(ptptc)2(DMF)(H2O)]·DMF·6H2O (complex 1) has been constructed from terphenyl-3,3′,5,5′-tetracarboxylic acid (H4ptptc) and terbium nitrate under solvothermal conditions. The structure of complex 1 was characterized by single-crystal X-ray diffraction analysis (XRD), elemental analysis, IR spectroscopy and thermogravimetric (TG) analysis, and the purity was further confirmed by powder X-ray diffraction (PXRD) analysis. XRD analysis reveals that complex 1 crystallizes in a triclinic system P1̄ space group and consists of a three-dimensional anionic network which has one-dimensional channels. Fluorescence titration experiments showed that complex 1 displayed real-time, highly selective and sensitive fluorescence quenching behavior towards picric acid with a nanomolar scale experimental detection limit (100 nM). Recycling titration experiments suggested that the as-synthesized probe has good reversibility and can be used for at least five cycles in fluorescence titration experiments without obvious fluorescence intensity reduction or framework structure destruction. Furthermore, the high selectivity and sensitivity as well as good recyclability of complex 1 make it a potential fluorescent sensor for picric acid. A new three-dimensional reusable Tb-MOF fluorescent sensor for the highly selective and sensitive detection of picric acid was reported.![]()
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Affiliation(s)
- Ping Ju
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Ensheng Zhang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Long Jiang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Ze Zhang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Xiangyang Hou
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Yuqi Zhang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Hua Yang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Jijiang Wang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
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25
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Zhang Y, Shen P, He B, Luo W, Zhao Z, Tang BZ. New fluorescent through-space conjugated polymers: synthesis, optical properties and explosive detection. Polym Chem 2018. [DOI: 10.1039/c7py01700f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
New through-space conjugated polymers based on a tetraphenylethene foldamer are explored and utilized in explosive detection in aqueous media.
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Affiliation(s)
- Yingying Zhang
- Center for Aggregation-Induced Emission
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Pingchuan Shen
- Center for Aggregation-Induced Emission
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Bairong He
- Center for Aggregation-Induced Emission
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Wenwen Luo
- Center for Aggregation-Induced Emission
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Zujin Zhao
- Center for Aggregation-Induced Emission
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Ben Zhong Tang
- Center for Aggregation-Induced Emission
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
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26
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Facile approach to synthesize highly fluorescent multicolor emissive carbon dots via surface functionalization for cellular imaging. J Colloid Interface Sci 2017; 513:505-514. [PMID: 29179091 DOI: 10.1016/j.jcis.2017.10.095] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 10/24/2017] [Accepted: 10/25/2017] [Indexed: 01/09/2023]
Abstract
Luminescent nanomaterials are encouraging scaffolds for diverse applications such as chemical sensors and biosensors, imaging, drug delivery, diagnostics, catalysis, energy, photonics, medicine, and so on. Carbon dots (CDs) are a new class of luminescent carbonaceous nanomaterial that have appeared recently and reaped tremendous scientific interest. Herein, we have exploited a simple approach to prepare tuneable and highly fluorescent CDs via surface functionalization. The successful synthesis of CDs is manifested from several investigations like high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The CDs exhibit excellent water solubility and with increasing nitrogen content fluorescence quantum yield increases whereas cell toxicity decreases. The CD synthesized at high temperature (180 °C) shows very high quantum yield (more than 56%). The tuneable optical properties of CDs are systematically studied using UV-vis and fluorescence spectroscopy. The cell viability evaluation and in vitro imaging study reveals that the synthesized CDs can be employed as a potential fluorescent probe for bio-imaging without further modification.
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27
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Cao X, Zhao N, Lv H, Ding Q, Gao A, Jing Q, Yi T. Strong Blue Emissive Supramolecular Self-Assembly System Based on Naphthalimide Derivatives and Its Ability of Detection and Removal of 2,4,6-Trinitrophenol. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:7788-7798. [PMID: 28718285 DOI: 10.1021/acs.langmuir.7b01927] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Two simple and novel gelators (G-P with pyridine and G-B with benzene) with different C-4 substitution groups on naphthalimide derivatives have been designed and characterized. Two gelators could form organogels in some solvents or mixed solvents. The self-assembly processes of G-P in a mixed solvent of acetonitrile/H2O (1/1, v/v) and G-B in acetonitrile were studied by means of electron microscopy and spectroscopy. The organogel of G-P in the mixed solvent of acetonitrile/H2O (1/1, v/v) formed an intertwined fiber network, and its emission spectrum had an obvious blue shift compared with that of solution. By contrast, the organogel of G-B in acetonitrile formed a straight fiber, and its emission had an obvious red shift compared with that of solution. G-P and G-B were employed in detecting nitroaromatic compounds because of their electron-rich property. G-P is more sensitive and selective toward 2,4,6-trinitrophenol (TNP) compared with G-B. The sensing mechanisms were investigated by 1H NMR spectroscopic experiments and theoretical calculations. From these experimental results, it is proposed that electron transfer occurs from the electron-rich G-P molecule to the electron-deficient TNP because of the possibility of complex formation between G-P and TNP. The G-P molecule could detect TNP in water, organic solvent media, as well as using test strips. It is worth mentioning that the organogel G-P can not only detect TNP but also remove TNP from the solution into the organogel system.
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Affiliation(s)
- Xinhua Cao
- College of Chemistry and Chemical Engineering & Henan Province Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan, Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains, Xinyang Normal University , Xinyang 464000, China
| | - Na Zhao
- College of Chemistry and Chemical Engineering & Henan Province Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan, Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains, Xinyang Normal University , Xinyang 464000, China
| | - Haiting Lv
- College of Chemistry and Chemical Engineering & Henan Province Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan, Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains, Xinyang Normal University , Xinyang 464000, China
| | - Qianqian Ding
- College of Chemistry and Chemical Engineering & Henan Province Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan, Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains, Xinyang Normal University , Xinyang 464000, China
| | - Aiping Gao
- College of Chemistry and Chemical Engineering & Henan Province Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan, Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains, Xinyang Normal University , Xinyang 464000, China
| | - Qiangshan Jing
- College of Chemistry and Chemical Engineering & Henan Province Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan, Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains, Xinyang Normal University , Xinyang 464000, China
| | - Tao Yi
- Department of Chemistry and Collaborative Innovation Center of Energy Materials, Fudan University , Shanghai 200433, China
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28
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Wu YC, Luo SH, Cao L, Jiang K, Wang LY, Xie JC, Wang ZY. Self-assembled structures of N -alkylated bisbenzimidazolyl naphthalene in aqueous media for highly sensitive detection of picric acid. Anal Chim Acta 2017; 976:74-83. [DOI: 10.1016/j.aca.2017.04.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 04/09/2017] [Accepted: 04/14/2017] [Indexed: 01/08/2023]
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29
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Qu F, Chen P, Zhu S, You J. High selectivity of colorimetric detection of p-nitrophenol based on Ag nanoclusters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 171:449-453. [PMID: 27579789 DOI: 10.1016/j.saa.2016.08.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 08/20/2016] [Accepted: 08/20/2016] [Indexed: 06/06/2023]
Abstract
Ag nanoclusters (Ag NCs) templated by hyperbranched polyethyleneimine (PEI) with different terminal groups and molecular weights had been developed as a special optical sensor for detecting p-nitrophenol (p-NP). When adding p-NP into Ag NCs, an obvious color change from pale yellow to deep yellow could be observed by naked eyes, accompanying with an apparent red-shift of absorption peak, and the reason was attributed to the formation of oxygen anion of p-NP based on the transfer of H+ from p-NP to amine groups of PEI. The molecular weights of template would greatly affect the sensitivity of p-NP. Ag NCs capped by PEI terminated ethylenediamine (EDA) possessed better sensitivity than other Ag NCs, showing good linear range from 5 to 140μM with the limit of detection as low as 1.28μM. Most importantly, this present system displayed high selectivity toward p-NP even in the presence of other nitrophenols and nitrotoluenes. This reliable method had been successfully applied for the detection of p-NP in real water and soil samples.
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Affiliation(s)
- Fei Qu
- The Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu 273165, Shandong, China; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Ping Chen
- The Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu 273165, Shandong, China; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu Normal University, Qufu 273165, Shandong, China
| | - Shuyun Zhu
- The Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu 273165, Shandong, China; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu Normal University, Qufu 273165, Shandong, China
| | - Jinmao You
- The Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu 273165, Shandong, China; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu Normal University, Qufu 273165, Shandong, China; Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China.
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30
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Zhang J, Cai C, Razzaque S, Hussain I, Lu QW, Tan B. Synthesis of water-soluble and highly fluorescent gold nanoclusters for Fe3+ sensing in living cells using fluorescence imaging. J Mater Chem B 2017. [DOI: 10.1039/c7tb00966f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold nanoclusters are used as excellent scaffolds for the development of chemical and biological sensors due to their outstanding physical and chemical properties.
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Affiliation(s)
- Jianqiao Zhang
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- Hubei Key Laboratory of Material Chemistry and Service Failure
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
| | - Chen Cai
- Key Laboratory of Molecular Biophysics of Ministry of Education
- College of Life Science and Technology
- Center for Human Genome Research
- Huazhong University of Science and Technology
- Wuhan
| | - Shumaila Razzaque
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- Hubei Key Laboratory of Material Chemistry and Service Failure
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
| | - Irshad Hussain
- Department of Chemistry
- SBA School of Science & Engineering (SSE)
- Lahore University of Management Sciences (LUMS)
- DHA
- Lahore Cantt-54792
| | - Qun-Wei Lu
- Key Laboratory of Molecular Biophysics of Ministry of Education
- College of Life Science and Technology
- Center for Human Genome Research
- Huazhong University of Science and Technology
- Wuhan
| | - Bien Tan
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- Hubei Key Laboratory of Material Chemistry and Service Failure
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
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31
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Maity S, Shyamal M, Mazumdar P, Sahoo GP, Maity R, Salgado-Morán G, Misra A. Solvatochromism and turn-off fluorescence sensing property of N,N′-bis(3-pentyl)perylene-3, 4, 9, 10-bis(dicarboximide) towards nitroaromatics and photophysical study of its microstructures. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.09.073] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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