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Size effect of encapsulated metal within zeolite: Biomass, CO2 and Methane utilization. J Catal 2022. [DOI: 10.1016/j.jcat.2022.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Zhang Y, He B, Zhao R, Bai C, Zhang Y, Jin H, Wei M, Ren W, Suo Z, Xu Y. Electrochemical aptasensor based on the target-induced strand displacement strategy-driven for T-2 toxin detection. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 849:157769. [PMID: 35926626 DOI: 10.1016/j.scitotenv.2022.157769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Herein, an aptasensor based on target-induced strand displacement (TISD) strategy was developed for sensitive detection of T-2 toxin. Gold nanoparticles@ aminated manganese dioxide (AuNPs@NH2-MnO2) exhibited excellent electrical conductivity and provided more binding sites for aptamer (Apt). Besides, polyethyleneimine-reduced graphene oxide/gold‑platinum core-shell nanorods composites (PEI-rGO/Pt@Au NRs) were used to be carriers for signaling tags, as their sufficiently large specific surface area improved the loading capacity for signal molecules. In the presence of T-2, the Apt sequence was more inclined to form an Apt-T-2 complex, and the cDNA was displaced from the Apt-cDNA duplex, while the signal tag was released, resulting in a weakened MB signal, differential pulse voltammetry (DPV) was used to record the signal change. Under optimal conditions, the signal response of the constructed electrochemical aptasensor exhibited a good linear relationship with the concentration of T-2. The detection limit was 8.74 × 10-7 ng mL-1over a wide range of concentration from 5 × 10-6 ng mL-1 to 5 ng mL-1. Furthermore, the proposed aptasensor had excellent specificity, good stability and can be well applied to the detection of real samples. It provided a new avenue for the research and development of sensitive aptasensors in food detection and analysis.
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Affiliation(s)
- Yidan Zhang
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Baoshan He
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China.
| | - Renyong Zhao
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Chunqi Bai
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Yurong Zhang
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Huali Jin
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Min Wei
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Wenjie Ren
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Zhiguang Suo
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Yiwei Xu
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
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Zhang S, Zhang X, Dong L, Zhu S, Yuan Y, Xu L. In situ synthesis of Pt nanoparticles encapsulated in Silicalite-1 zeolite via a steam-assisted dry-gel conversion method. CrystEngComm 2022. [DOI: 10.1039/d1ce01718g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, Pt nanoparticles (NPs) were directly encapsulated into MFI-type zeolite (Pt@S-1) via a steam-assisted dry-gel conversion method. The synthesis process included the disaggregation of Pt immobilized SiO2-SH spheres...
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Zhang F, Liu M, Liu Q, Li J, Li B, Dong Z. A Facile and In-situ Methanol-mediated Fabrication of Low Pd Loading, High-efficiency and Size-selectivity Pd@ZIF-8 Hydrogenation Catalyst. Chem Asian J 2021; 16:2952-2957. [PMID: 34351683 DOI: 10.1002/asia.202100740] [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: 07/02/2021] [Revised: 08/01/2021] [Indexed: 11/08/2022]
Abstract
In-situ encapsulation of tiny and well-dispersed Pd nanoparticles (Pd NPs) in zeolitic imidazolate frameworks (ZIFs) was firstly achieved using a one-pot and facile methanol-mediated growth approach, in which methanol served as both solvent and a mild reductant. The microstructure, morphology, crystallinity, porosity as well as evolution process of the catalysts were determined by TEM, XRD, N2 adsorption and UV-vis spectra. Due to the complete encapsulation of such Pd NPs combined with ultrahigh surface area and uniform microporous structure of ZIF-8, the resulting Pd@ZIF-8-60 min nanocomposite exhibited more superior catalytic activity for olefins hydrogenation with TOF of 7436 h-1 and excellent size selectivity than previously reported catalysts. Furthermore, the catalyst displays excellent recyclability for 1-octene hydrogenation and without any loss of the Pd active species.
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Affiliation(s)
- Fengwei Zhang
- Institute of Crystalline Materials, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, P. R. China.,College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Mengmeng Liu
- Institute of Crystalline Materials, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, P. R. China
| | - Qiang Liu
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, P. R. China
| | - Jingjing Li
- Institute of Crystalline Materials, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, P. R. China
| | - Boyang Li
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Zhengping Dong
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
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Lu N, Zhao J, Dong Q, Zhao Y, Fan B. Supported noble metal catalyst with a core-shell structure for enhancing hydrogenation performance. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111543] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Affiliation(s)
- Chuanbo Gao
- Center for Materials Chemistry, Frontier Institute of Science and Technology, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710054, China
| | - Fenglei Lyu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, California 92521, United States
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Dai C, Du K, Song C, Guo X. Recent progress in synthesis and application of zeolite-encapsulated metal catalysts. ADVANCES IN CATALYSIS 2020. [DOI: 10.1016/bs.acat.2020.10.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Liu C, Zhang J, Liu H, Qiu J, Zhang X. Heterogeneous Ligand-Free Rhodium Oxide Catalyst Embedded within Zeolitic Microchannel to Enhance Regioselectivity in Hydroformylation. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03598] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Cun Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jingjing Zhang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Haiou Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jieshan Qiu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xiongfu Zhang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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