1
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Chen M, Xie Y, Li M. Molecular-Sieving Label-Free Surface-Enhanced Raman Spectroscopy for Sensitive Detection of Trace Small-Molecule Biomarkers in Clinical Samples. NANO LETTERS 2024. [PMID: 39234992 DOI: 10.1021/acs.nanolett.4c02890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/06/2024]
Abstract
Small-molecule biomarkers are ubiquitous in biological fluids with pathological implications, but major challenges persist in their quantitative analysis directly in complex clinical samples. Herein, a molecular-sieving label-free surface-enhanced Raman spectroscopy (SERS) biosensor is reported for selective quantitative analysis of trace small-molecule trimetazidine (TMZ) in clinical samples. Our biosensor is fabricated by decorating a superhydrophobic monolayer of microporous metal-organic frameworks (MOF) shell-coated Au nanostar nanoparticles on a silicon substrate. The design strategy principally combines the hydrophobic surface-enabled physical confinement and preconcentration, MOF-assisted molecular enrichment and sieving of small molecules, and sensitive SERS detection. Our biosensor utilizes such a "molecular confinement-and-sieving" strategy to achieve a five orders-of-magnitude dynamic detection range and a limit of detection of ≈0.5 nM for TMZ detection in either urine or whole blood. We further demonstrate the applicability of our biosensing platform for longitudinal label-free SERS detection of the TMZ level directly in clinical samples in a mouse model.
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Affiliation(s)
- Mingyang Chen
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Yangcenzi Xie
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Ming Li
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
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2
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Jiang ZH, Zhang X, Jin J, Jiang S, Bai FY, Xing YH. Amino-Functionalized NDI-Based MOFs as Unusual "Turn On" and "Turn Off" Fluorescent Sensors for Phenolic Pollutants with Double Solvent Channel Response and Iodine Adsorbents. Inorg Chem 2024; 63:14559-14569. [PMID: 39031913 DOI: 10.1021/acs.inorgchem.4c01899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2024]
Abstract
Regulating mixed ligands to change the functional properties of metal-organic frameworks (MOFs) has been an important topic; especially, the structural changes have significant implications for the transformation of sensing response in different solvent channels. Herein, two [Cd (DPNDI) (NH2-BDC)0.5(NO3)]·2.25DMF (1) and [Cd(DPNDI)(NH2-AIPA)]·0.5DMF (2) (DPNDI = N,N-di(4-pyridyl)-1,4,5,8-naphthalenetetracarboxydiimide, NH2-BDC = 2-amino terephthalic acid, NH2-AIPA = 5-aminoisophthalic acid) were synthesized by the solvothermal method. Structural analysis shows that complex 1 has a two-dimensional planar network structure and complex 2 exhibits a three-dimensional network structure, endowing its potential as an efficient fluorescence sensor for phenolic compound detection under different solvent environments. Both complexes showed high fluorescence quenching sensitivity to phenolics in a water medium. Conversely, complex 1 showed a fluorescence enhancement response to phenolic pollutants in an ethanol system with significantly low detection limits and recyclability. The detection limits were 0.58 μM for TNP, 1.3 μM for DNP, and 2.43 μM for PCP. In addition, the uncoordinated amino groups in the complexes promote them to exhibit excellent iodine adsorption performance. Especially, complex 2 can serve as an adsorbent for iodine in cyclohexane solution with better adsorption efficiency than that of complex 1, and its adsorption capacity can reach 505 mg/g. The mixed ligands regulation strategy of NDI-based MOFs will open up an effective avenue for the conversion of fluorescence signals in dual-solvent channels and play simultaneously important roles in multiple applications.
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Affiliation(s)
- Zhi Han Jiang
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, P.R. China
| | - Xue Zhang
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, P.R. China
| | - Jing Jin
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, P.R. China
| | - Shan Jiang
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, P.R. China
| | - Feng Ying Bai
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, P.R. China
| | - Yong Heng Xing
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, P.R. China
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3
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Lin H, Zheng D, Wu X, He R, He L, Zhou X, Zuo H, Yuan C, Zeng B, Xu Y, Dai L. Electrically weldable conductive elastomers. SCIENCE ADVANCES 2024; 10:eadp0730. [PMID: 38896623 PMCID: PMC11186498 DOI: 10.1126/sciadv.adp0730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 05/14/2024] [Indexed: 06/21/2024]
Abstract
Flexible and stretchable electronic devices are subject to failure because of vulnerable circuit interconnections. We develop a low-voltage (1.5 to 4.5 V) and rapid (as low as 5 s) electric welding strategy to integrate both rigid electronic components and soft sensors in flexible circuits under ambient conditions. This is achieved through the design of conductive elastomers composed of borate ester polymers and conductive fillers, which can be self-welded and generate welding effects to various materials including metals, hydrogels, and other conductive elastomers. The welding effect is generated through the electrochemical reaction-triggered exposure of interfacial adhesive promotors or the cleavage/reformation of dynamic bonds. Our strategy can ensure both mechanical compliance and conductivity at the circuit interfaces and easily produce welding strengths in the kilopascal to megapascal range. The as-designed conductive elastomers in combination with the electric welding technique provide a robust platform for constructing standalone flexible and stretchable electronic devices that are detachable and assemblable on demand.
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Affiliation(s)
- Haimen Lin
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Dandan Zheng
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Xiaoling Wu
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Rubin He
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Liu He
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Xiangfu Zhou
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Haiyan Zuo
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Conghui Yuan
- College of Materials, Xiamen University, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
| | - Birong Zeng
- College of Materials, Xiamen University, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
| | - Yiting Xu
- College of Materials, Xiamen University, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
| | - Lizong Dai
- College of Materials, Xiamen University, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen 361005, China
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4
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Schubert U, Stöger B. Structural Chemistry of Titanium (IV) Oxo Clusters, Part 2: Clusters without Carboxylate or Phosphonate Ligands. Chemistry 2024; 30:e202400744. [PMID: 38629948 DOI: 10.1002/chem.202400744] [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: 02/23/2024] [Indexed: 06/04/2024]
Abstract
Homometallic titanium oxo clusters (TOC) are one of the most important groups of metal oxo clusters. In a previous article, TOC structures with carboxylato and phosphonato ligands were reviewed and categorized. This work is now extended to clusters with other ligands. Comparison of the different cluster types shows how the interplay between condensation of the titanium polyhedra by means of bridging oxygen atoms and the coordination characteristics of the ligands influences the cluster structures and allows working out basic construction principles of the cluster core.
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Affiliation(s)
- Ulrich Schubert
- Institute of Materials Chemistry, Technische Universiät Wien, Getreidemarkt 9, 1060, Wien, Austria
| | - Berthold Stöger
- X-Ray Center, Technische Universiät Wien, Getreidemarkt 9, 1060, Wien, Austria
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5
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Liu Y, Zhang G, Wang D, Chen G, Gao F, Tung CH, Wang Y. A cryptand-like Ti-coordination compound with visible-light photocatalytic activity in CO 2 storage. Dalton Trans 2024; 53:1989-1998. [PMID: 38205664 DOI: 10.1039/d3dt04051h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
A cryptand-like Ti-coordination compound, namely Ti12Cs, comprising two Ti6-salicylate cages and hosting two Cs+ ions, was synthesized by the solvothermal method. It exhibits strong visible-light absorption with an absorption band edge of 652 nm, attributed to the electron transition from salicylate ligands to Ti ions. Electrochemical impedance, visible-light transient photocurrent response, and photoluminescence spectra confirm that Ti12Cs has excellent visible-light response and charge-separation properties. Ti12Cs can be used as a heterogeneous and recyclable photocatalyst for CO2/epoxide cycloaddition, with high utilization efficiency of visible-light under mild conditions. The mechanism investigation points to a synergistic effect of photocatalysis and Lewis acid catalysis.
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Affiliation(s)
- Yanshu Liu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Guanyun Zhang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Dexin Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Guanjie Chen
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Fangfang Gao
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yifeng Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
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6
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Wang D, Liu Y, Chen G, Gao F, Zhang G, Wang G, Tung CH, Wang Y. Ligation of Titanium-oxide and {Mo 2} Units for Solar CO 2 Storage. Inorg Chem 2023; 62:21074-21082. [PMID: 38095877 DOI: 10.1021/acs.inorgchem.3c02876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2023]
Abstract
Two Mo-Ti-mixed oxide clusters, Ti6Mo4 and Ti4Mo4, which contain the {Mo2V} unit commonly observed in many polyoxomolybdates, were successfully synthesized. The introduction of a {Mo2V} dopant into a titanium-oxide cluster (TOC) results in a red shift of the absorption edge, hence leading to a substantial enhancement of visible-light absorption. The band gap electron transition mainly involves the ligand-to-metal charge transfer (LMCT, benzoate-to-Mo) and MoV d-d transition. Both clusters show favorable visible-light responsiveness and charge-separation efficiency. Both serve as heterogeneous photocatalysts and exhibit excellent catalytic activity in CO2/epoxide cycloadditions under very mild conditions. The mechanism study suggests that the catalytically active sites are mainly MoV, and the photogenerated electrons and holes are both involved. Ti6Mo4 exhibits better photocatalytic activity than Ti4Mo4, demonstrating the crucial role of the titanium-oxide core, which corresponds to improved light absorption and charge-separation efficiency. Our findings highlight the potential of the {Mo2V} unit in constructing Mo-Ti-mixed oxide clusters with interesting topologies and excellent solar-light-harvesting activity.
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Affiliation(s)
- Dexin Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yanshu Liu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Guanjie Chen
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Fangfang Gao
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Guanyun Zhang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Guo Wang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yifeng Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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7
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Xie X, Jiang J, Ma J, Gu C, Jiang T, Zhang J. Quantitative detection of purine from food products with different water activities using needle-based surface-enhanced Raman scattering sensors. Food Chem 2023; 418:136011. [PMID: 37001358 DOI: 10.1016/j.foodchem.2023.136011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023]
Abstract
Typically, for accurate quantitative tests of molecules, considering the actual solute concentration in the environment with different water activities (Aws) is essential. Accordingly, for effective detection of food substances, this paper proposes a non-destructive pluggable sensor to capture and monitor four free purines based on surface-enhanced Raman scattering characteristics such as sensitivity, uniformity, repeatability, and stability. In particular, we investigate the impact of Aw on the evaluation of purine detection and its deviation corrections. Furthermore, the recoveries of purine from three food products, including fish (Aw: 0.99), ham (Aw: 0.91), and bacon (Aw: 0.73), are subsequently explored to validate the reliability of the proposed method. The results indicate that the proposed non-destructive pluggable sensor performs better when the Aw is considered. Therefore, this strategy for achieving more reliable quantitative detection by rectifying deviations based on the Aw can significantly help monitor food quality.
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Affiliation(s)
- Xiaojuan Xie
- College of Food and Pharmaceutical Sciences, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China
| | - Jing Jiang
- College of Food and Pharmaceutical Sciences, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China
| | - Jiali Ma
- College of Food and Pharmaceutical Sciences, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China
| | - Chenjie Gu
- College of Food and Pharmaceutical Sciences, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China
| | - Tao Jiang
- College of Food and Pharmaceutical Sciences, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China.
| | - Jinjie Zhang
- College of Food and Pharmaceutical Sciences, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China.
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8
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Su X, Liu X, Xie Y, Chen M, Zhong H, Li M. Quantitative Label-Free SERS Detection of Trace Fentanyl in Biofluids with a Freestanding Hydrophobic Plasmonic Paper Biosensor. Anal Chem 2023; 95:3821-3829. [PMID: 36752236 DOI: 10.1021/acs.analchem.2c05211] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The prevalence of fentanyl abuse raises global public health concerns with an unprecedented surge in overdose deaths. Rapid identification and quantification of fentanyl in biofluids is of paramount importance to combat fentanyl abuse for law enforcement agencies and promptly treat patients for medical professionals. Herein, a freestanding surface-enhanced Raman spectroscopy (SERS) biosensor with excellent condensing enrichment capability, termed FrEnSERS biosensor, is reported for quantitative label-free detection of trace fentanyl in biofluids. This biosensor comprises a reduced graphene oxide membrane decorated with high-density hydrophobic Au nanostars. A combination of the high SERS enhancement and the focusing effect for analyte enrichment of the hydrophobic surface accounts for the remarkable SERS performance of the FrEnSERS biosensor. We demonstrate that the FrEnSERS biosensor achieves the sensitive and quantitative detection of fentanyl in both serum and urine over a wide dynamic range spanning more than 4 orders of magnitude, with a limit of detection of 0.47 ng/mL for serum samples and 0.73 ng/mL for urine samples. Our biosensor is sensitive, cost-effective, and reliable for rapid quantitative analysis of fentanyl in biofluids with great promise for forensic analysis and clinical diagnosis.
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Affiliation(s)
- Xiaoming Su
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China.,College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Xinyu Liu
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Yangcenzi Xie
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Mingyang Chen
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Hong Zhong
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Ming Li
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
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9
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Nisini G, Scroccarello A, Ripanti F, Fasolato C, Cappelluti F, Capocefalo A, Della Pelle F, Compagnone D, Postorino P. Nanoscale Surface-Enhanced Raman Spectroscopy Investigation of a Polyphenol-Based Plasmonic Nanovector. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:377. [PMID: 36770338 PMCID: PMC9921702 DOI: 10.3390/nano13030377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/05/2023] [Accepted: 01/12/2023] [Indexed: 06/18/2023]
Abstract
The demand for next-generation multifunctional nanovectors, combining therapeutic effects with specific cellular targeting, has significantly grown during the last few years, pursuing less invasive therapy strategies. Polyphenol-conjugated silver nanoparticles (AgNPs) appear as potential multifunctional nanovectors, integrating the biorecognition capability and the antioxidant power of polyphenols, the antimicrobial activity of silver, and the drug delivery capability of NPs. We present a spectroscopic and microscopic investigation on polyphenol-synthesized AgNPs, selecting caffeic acid (CA) and catechol (CT) as model polyphenols and using them as reducing agents for the AgNP green synthesis, both in the presence and in the absence of a capping agent. We exploit the plasmonic properties of AgNPs to collect Surface-Enhanced Raman Scattering (SERS) spectra from the nanosized region next to the Ag surface and to characterize the molecular environment in the proximity of the NP, assessing the orientation and tunable deprotonation level of CA, depending on the synthesis conditions. Our results suggest that the SERS investigation of such nanovectors can provide crucial information for their perspective biomedical application.
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Affiliation(s)
- Giacomo Nisini
- Physics Department, Sapienza University, P.le A. Moro 5, 00185 Rome, Italy
| | - Annalisa Scroccarello
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, via R. Balzarini 1, 64100 Teramo, Italy
| | - Francesca Ripanti
- Physics Department, Sapienza University, P.le A. Moro 5, 00185 Rome, Italy
- Physics and Geology Department, University of Perugia, via A. Pascoli, 06123 Perugia, Italy
| | - Claudia Fasolato
- Institute for Complex Systems, National Research Council, P.le A. Moro 5, 00185 Rome, Italy
| | | | - Angela Capocefalo
- Institute for Complex Systems, National Research Council, P.le A. Moro 5, 00185 Rome, Italy
| | - Flavio Della Pelle
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, via R. Balzarini 1, 64100 Teramo, Italy
| | - Dario Compagnone
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, via R. Balzarini 1, 64100 Teramo, Italy
| | - Paolo Postorino
- Physics Department, Sapienza University, P.le A. Moro 5, 00185 Rome, Italy
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10
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Karami-Kolmoti P, Beitollahi H, Modiri S. Voltammetric detection of catechol in real samples using MnO2 nanorods-graphene oxide nanocomposite modified electrode. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01692-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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11
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Gao C, Wang D, Liu Y, Zhang G, Liu C, Said A, Niu H, Wang G, Tung CH, Wang Y. New picolinate-functionalized titanium-oxide clusters: syntheses, structures and photocatalytic H 2 evolution. Dalton Trans 2022; 51:15385-15392. [PMID: 36149342 DOI: 10.1039/d2dt01882a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two nanosized titanium-oxide clusters (TOCs), Ti12(μ2-O)14(μ3-O)4PA16 (1; PA = 2-picolinate) and Ti12(μ2-O)18PA18 (2) were synthesized by using 2-picolinic acid and Ti(OiPr)4 in one-pot reactions. Their structures were determined using single-crystal X-ray diffractometry. Although both have the same core composition of Ti12O18, 1 exhibited superior H2 evolution activity of up to 180 μmol h-1 g-1, which is nearly eight times faster than 2. Mechanism studies revealed that 1 could induce the assembly of 2.3 nm PtNPs into 10-30 nm supra-nanoparticle structures, which contributed to the increased H2 evolution rate.
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Affiliation(s)
- Chang Gao
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Dexin Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Yanshu Liu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Guanyun Zhang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Caiyun Liu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Amir Said
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Huihui Niu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Guo Wang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Yifeng Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China. .,State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
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12
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Chen S, Lei Y, Xu J, Yang Y, Dong Y, Li Y, Yi H, Liao Y, Chen L, Xiao Y. Simple, rapid, and visual electrochemiluminescence sensor for on-site catechol analysis. RSC Adv 2022; 12:17330-17336. [PMID: 35765423 PMCID: PMC9189704 DOI: 10.1039/d2ra03067e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 06/06/2022] [Indexed: 12/27/2022] Open
Abstract
Environmental pollution caused by aromatic compounds such as catechol (Cat) has become a major issue for human health. However, there is no simple, rapid, and low-cost method for on-site monitoring of Cat. Here, based on ECL quenching mechanism, we develop a simple, rapid and visual mesoporous silica (MSNs)-electrochemiluminescence (ECL) sensor for on-site monitoring of Cat. The mechanism of ECL quenching is due to the interaction between Cat and Ru(bpy)32+* and the interactions between the oxidation products of Cat and DBAE. MSNs films with ordered perpendicular mesopore channels exhibit an amplification effect of ECL intensity due to the negatively charged pore channel. There is a good linear relationship between ECL intensity and Cat concentration in the range of 10 ∼ 1000 μM with the limit of detection (LOD) of 9.518 μM (R2 = 0.99). The on-site sensor is promising to offer new opportunities for pharmaceuticals analysis, on-site monitoring, and exposure risk assessment. A simple, rapid and visual mesoporous silica (MSNs)-electrochemiluminescence (ECL) sensor was developed for on-site monitoring of Cat.![]()
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Affiliation(s)
- Suhua Chen
- Hunan Provincial Maternal and Child Health Care Hospital Changsha 410008 Hunan China
| | - Yuanyuan Lei
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of Medicine, Hunan Normal University Changsha 410013 Hunan China
| | - Junrong Xu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of Medicine, Hunan Normal University Changsha 410013 Hunan China
| | - Yun Yang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of Medicine, Hunan Normal University Changsha 410013 Hunan China
| | - Yiying Dong
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of Medicine, Hunan Normal University Changsha 410013 Hunan China
| | - Yanmei Li
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of Medicine, Hunan Normal University Changsha 410013 Hunan China
| | - Haomin Yi
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of Medicine, Hunan Normal University Changsha 410013 Hunan China
| | - Yilong Liao
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of Medicine, Hunan Normal University Changsha 410013 Hunan China
| | - Liyin Chen
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of Medicine, Hunan Normal University Changsha 410013 Hunan China
| | - Yi Xiao
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of Medicine, Hunan Normal University Changsha 410013 Hunan China.,Experimental Soft Condensed Matter Group, School of Engineering and Applied Sciences, Harvard University Cambridge Massachusetts 02138 USA
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13
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Guo YH, Yu YZ, Shen YH, Yang LG, Liu NN, Zhou ZY, Niu YS. "Three-in-One" Structural-Building-Mode-Based Ti 16-Type Titanium Oxo Cluster Entirely Protected by the Ligands Benzoate and Salicylhydroxamate. Inorg Chem 2022; 61:8685-8693. [PMID: 35639458 DOI: 10.1021/acs.inorgchem.2c00327] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Titanium oxo clusters (TOCs) with accurate molecular structures have potential applications in photocatalysis, such as photocatalytic degradation, hydrogen production, and water oxidation. The hydrolytic stability and light absorption ability of TOCs have important impacts on photocatalysis, where the selection of peripheral organic ligands plays a significant role. In this regard, salicylhydroxamic acid (abbreviated as H3L) attracts our attention, acting as a ligand for its multidentate and dye-functional features, which can increase the hydrolytic stability and broaden light absorption for TOCs. Herein, two TOCs were solvothermally synthesized and structurally characterized using H3L, formulated as [Ti8(μ2-O)2(μ3-O)2(OiPr)12(L)4]·2CH3CN (1) and [Ti16(μ2-O)10(μ3-O)4(PhCOO)14(L)6(HL)2]·4CH3CN·2iPrOH (2). Complex 2 was obtained by adding excessive benzoic acid over the reaction system of 1, resulting in enhanced hydrolytic stability via the replacement of all alkoxy ligands by multidentate ligands for protection. Interestingly, for the first time, the "three-in-one" structural building mode with {Ti6} + {Ti4} + {Ti6} by the common subunits in 2 was observed among all reported TOCs. Moreover, complex 2 can strongly absorb visible light reaching up to 700 nm and exhibit obvious activity for the photodegradation of methyl orange.
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Affiliation(s)
- Yu-Hua Guo
- Henan Key Laboratory of Subcritical High-Efficiency Extraction, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, P. R. China
| | - You-Zhu Yu
- Henan Key Laboratory of Subcritical High-Efficiency Extraction, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, P. R. China
| | - Yan-Hong Shen
- Henan Key Laboratory of Subcritical High-Efficiency Extraction, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, P. R. China
| | - Li-Guo Yang
- Henan Key Laboratory of Subcritical High-Efficiency Extraction, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, P. R. China
| | - Na-Na Liu
- Henan Key Laboratory of Subcritical High-Efficiency Extraction, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, P. R. China
| | - Zhong-Yuan Zhou
- Henan Key Laboratory of Subcritical High-Efficiency Extraction, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, P. R. China
| | - Yong-Sheng Niu
- Henan Key Laboratory of Subcritical High-Efficiency Extraction, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, P. R. China
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Gao C, Liu C, Said A, Niu H, Wang D, Wang G, Tung CH, Wang Y. Syntheses, Structures and Ligand Binding Modes of Titanium-Oxide Complexes of 2-Picolinate. Dalton Trans 2022; 51:3706-3712. [DOI: 10.1039/d1dt04170c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Six titanium-oxide clusters (TOCs) comprised of 6-19 Ti atoms all of which are of nanometer size were synthesized with the functionalization of 2-picolinate (PA). Their structures were determined by single-crystal...
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Said A, Gao C, Liu C, Niu H, Wang D, Liu Y, Du L, Tung CH, Wang Y. A Mesoporous Lead-Doped Titanium Oxide Compound with High Performance and Recyclability in I 2 Uptake and Photocatalysis. Inorg Chem 2021; 61:586-596. [PMID: 34955011 DOI: 10.1021/acs.inorgchem.1c03263] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A three-dimensional (3D) mesoporous material with an atomically precise structure, Ti16Pb5O16(C6H5CO2)2(OCH3)40 (Ti16Pb5), comprised of a novel high-nuclearity Pb-doped titanium oxide cluster (TOC), was synthesized. Ti16Pb5 exhibited a surface area of 45 m2 g-1 and a pore diameter of 3.5 nm. It exhibited an uptake capacity of I2 of ≤2.2 g g-1 in vapor, and the performance was maintained after seven uptake-release cycles. Ti16Pb5 also showed a high adsorption ratio and capacity (93% and 3.1 g g-1) in hexane. The characterization data, including Fourier transform infrared, Raman, and powder X-ray diffraction, suggested the lattice structure of Ti16Pb5 was rigid and I2 was accommodated in the pores of Ti16Pb5. To the best of our knowledge, this is the first example of using a TOC in I2 adsorption. In addition, Ti16Pb5 showed excellent activity and recyclability in visible-light degradation of dye pollutants and photocurrent generation. Our structural analysis suggested the alkoxide ligands within the channels of Ti16Pb5 build up a confined polar environment and thereby facilitate I2 accommodation, and meanwhile, the improved performances and stabilities of Ti16Pb5 are correlated with its cluster-based, 3D hierarchical structure.
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Affiliation(s)
- Amir Said
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Chang Gao
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Caiyun Liu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Huihui Niu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Dexin Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yanshu Liu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Lin Du
- Environment Research Institute, Shandong University, Binhai Road 72, Qingdao 266237, China
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yifeng Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.,State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
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Advanced Optical Sensing of Phenolic Compounds for Environmental Applications. SENSORS 2021; 21:s21227563. [PMID: 34833640 PMCID: PMC8619556 DOI: 10.3390/s21227563] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/09/2021] [Accepted: 11/09/2021] [Indexed: 01/28/2023]
Abstract
Phenolic compounds are particularly dangerous due to their ability to remain in the environment for a long period of time and their toxic effects. They enter in the environment in different ways, such as waste from paper manufacturing, agriculture (pesticides, insecticides, herbicides), pharmaceuticals, the petrochemical industry, and coal processing. Conventional methods for phenolic compounds detection present some disadvantages, such as cumbersome sample preparation, complex and time-consuming procedures, and need of expensive equipment. Therefore, there is a very large interest in developing sensors and new sensing schemes for fast and easy-to-use methods for detecting and monitoring the phenolic compound concentration in the environment, with special attention to water. Good analytical properties, reliability, and adaptability are required for the developed sensors. The present paper aims at revising the most generally used optical methods for designing and fabricating biosensors and sensors for phenolic compounds. Some selected examples of the most interesting applications of these techniques are also proposed.
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Liu C, Wang Y. Supramolecular Chemistry of Titanium Oxide Clusters. Chemistry 2021; 27:4270-4282. [PMID: 32964513 DOI: 10.1002/chem.202003378] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/23/2020] [Indexed: 12/26/2022]
Abstract
Titanium oxide clusters (TOCs) have been emerging as a new type of inorganic molecular entities of supramolecular chemistry. Herein, a perspective on the structures and functionalities of TOCs over the past three decades is given and the paramount roles of TOCs in serving supramolecular chemistry are demonstrated. Four types of supramolecular assemblies based on TOCs are reviewed, namely, TOC hosts for ion inclusion, mechanically interlocked molecular systems built from cyclic TOCs, reactivities of surface sites toward ligand exchange, and hierarchical structures of TOCs. The principles and advantages of TOCs toward each application are fully discussed, along with structural analyses. Following this path, more functional TOC-based supramolecular systems may be designed and synthesized in the future, which, in turn, will certainly enhance research into both supramolecular and coordination chemistry of titanium.
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Affiliation(s)
- Caiyun Liu
- School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, 250100, Jinan, P.R. China
| | - Yifeng Wang
- School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, 250100, Jinan, P.R. China.,State Key Laboratory of Crystal Materials, Shandong University, Shanda South Road 27, 250100, Jinan, P.R. China
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