1
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Song Y, Yan N, Wan L, Li J, Gao Y. Organic/inorganic heterostructures templated by interfacial instability-driven BCP colloids in deformable emulsion droplets. SOFT MATTER 2024. [PMID: 39380307 DOI: 10.1039/d4sm00921e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2024]
Abstract
Hybrid heterostructure materials have received considerable attention due to the integration of each component and abundant functional applications in micromotors, catalysis, photothermal therapy, drug delivery, and bioimaging. However, the preparation of organic/inorganic heterostructure nanoparticles (HSNPs) with high quality still remains a remarkable challenge since thermodynamically metastable structures usually coexist, resulting in a lack of organic scaffolds with extreme uniformity both in shape and size distribution. Here, we prepared polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) block copolymer (BCP) core-shell spherical colloids driven by interfacial instability of soft and deformable emulsion droplets. Ultra-low interfacial tension was achieved through the co-adsorption of BCP segments and sodium dodecyl sulfate (SDS) surfactant, which had a strong affinity with the P4VP segment at the interface of the emulsified droplets. The excellent and homogeneous BCP colloids were further utilized as organic scaffolds to selectively grow a functional SiO2 layer on the surface of the BCP spherical colloids, producing BCP/SiO2 HSNPs with highly uniform shape and size distribution originating from the PS-b-P4VP scaffolds, thus providing an efficient and general strategy to construct and design organic/inorganic HSNPs with diverse applications.
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Affiliation(s)
- Yuqing Song
- College of Chemistry, Research Institute for Scientific and Technological Innovation, Changchun Normal University, Changchun 130032, China.
| | - Nan Yan
- College of Chemistry, Research Institute for Scientific and Technological Innovation, Changchun Normal University, Changchun 130032, China.
| | - Lingli Wan
- College of Chemistry, Research Institute for Scientific and Technological Innovation, Changchun Normal University, Changchun 130032, China.
| | - Jingjing Li
- College of Chemistry, Research Institute for Scientific and Technological Innovation, Changchun Normal University, Changchun 130032, China.
| | - Ye Gao
- College of Chemistry, Research Institute for Scientific and Technological Innovation, Changchun Normal University, Changchun 130032, China.
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2
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Wu WS, Yan X, Chen S, Du Y, Hu J, Song Y, Zha Z, Xu YJ, Cao B, Xuan SH, Liu X, Chen B, Dong L, Lu Y, Yu SH. Minimally Invasive Delivery of Percutaneous Ablation Agent via Magnetic Colloidal Hydrogel Injection for Treatment of Hepatocellular Carcinoma. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309770. [PMID: 38447017 DOI: 10.1002/adma.202309770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 02/28/2024] [Indexed: 03/08/2024]
Abstract
Percutaneous thermotherapy, a minimally invasive operational procedure, is employed in the ablation of deep tumor lesions by means of target-delivering heat. Conventional thermal ablation methods, such as radiofrequency or microwave ablation, to a certain extent, are subjected to extended ablation time as well as biosafety risks of unwanted overheating. Given its effectiveness and safety, percutaneous thermotherapy gains a fresh perspective, thanks to magnetic hyperthermia. In this respect, an injectable- and magnetic-hydrogel-construct-based thermal ablation agent is likely to be a candidate for the aforementioned clinical translation. Adopting a simple and environment-friendly strategy, a magnetic colloidal hydrogel injection is introduced by a binary system comprising super-paramagnetic Fe3O4 nanoparticles and gelatin nanoparticles. The colloidal hydrogel constructs, unlike conventional bulk hydrogel, can be easily extruded through a percutaneous needle and then self-heal in a reversible manner owing to the unique electrostatic cross-linking. The introduction of magnetic building blocks is exhibited with a rapid magnetothermal response to an alternating magnetic field. Such hydrogel injection is capable of generating heat without limitation of deep penetration. The materials achieve outstanding therapeutic results in mouse and rabbit models. These findings constitute a new class of locoregional interventional thermal therapies with minimal collateral damages.
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Affiliation(s)
- Wen-Shu Wu
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Xu Yan
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Sheng Chen
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yaxin Du
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Jinlong Hu
- Department of General Surgery, Department of Ultrasonics, Department of Interventional Radiology, Anhui No. 2 Provincial People's Hospital, Hefei, Anhui, 230041, P. R. China
| | - Yonghong Song
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Zhengbao Zha
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yun-Jun Xu
- New Cornerstone Science Laboratory, Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Radiology, The First Affiliated Hospital of University of Science and Technology of China, University of Science and Technology of China, Hefei, 230026, China
| | - Baoqiang Cao
- Department of General Surgery, Department of Ultrasonics, Department of Interventional Radiology, Anhui No. 2 Provincial People's Hospital, Hefei, Anhui, 230041, P. R. China
| | - Shou-Hu Xuan
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei, 230027, China
| | - Xingyu Liu
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Bing Chen
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Liang Dong
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China
| | - Yang Lu
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Shu-Hong Yu
- New Cornerstone Science Laboratory, Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Radiology, The First Affiliated Hospital of University of Science and Technology of China, University of Science and Technology of China, Hefei, 230026, China
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3
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Malmir M, Heravi MM, Shafiei Toran Poshti E. Facile Cu-MOF-derived Co 3O 4 mesoporous-structure as a cooperative catalyst for the reduction nitroarenes and dyes. Sci Rep 2024; 14:6846. [PMID: 38514684 PMCID: PMC10958026 DOI: 10.1038/s41598-024-52708-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 01/23/2024] [Indexed: 03/23/2024] Open
Abstract
The present study describes the environmentally friendly and cost-effective synthesis of magnetic, mesoporous structure-Co3O4 nanoparticles (m-Co3O4) utilizing almond peel as a biotemplate. This straightforward method yields a material with high surface area, as confirmed by various characterization techniques. Subsequently, the utilization of m-Co3O4, graphene oxide (GO), Cu(II)acetate (Cu), and asparagine enabled the successful synthesis of a novel magnetic MOF, namely GO-Cu-ASP-m-Co3O4 MOF. This catalyst revealed remarkable stability that could be easily recovered using a magnet for consecutive use without any significant decline in activity for eight cycles in nitro compound reduction and organic dye degradation reactions. Consequently, GO-Cu-ASP-m-Co3O4 MOF holds immense potential as a catalyst for reduction reactions, particularly in the production of valuable amines with high industrial value, as well as for the elimination of toxic-water pollutants such as organic dyes.
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Affiliation(s)
- Masoume Malmir
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, PO Box: 1993891176, Tehran, Iran.
| | - Majid M Heravi
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, PO Box: 1993891176, Tehran, Iran.
| | - Elham Shafiei Toran Poshti
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, PO Box: 1993891176, Tehran, Iran
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4
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Zhou Q, Lei P, Cheng S, Wang H, Dong W, Pan X. Recent progress in magnetic polydopamine composites for pollutant removal in wastewater treatment. Int J Biol Macromol 2024; 262:130023. [PMID: 38340929 DOI: 10.1016/j.ijbiomac.2024.130023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/08/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
Various water pollution issues pose a significant threat to human water safety. Magnetic polydopamine composites (MPCs), which can be separated by magnetic fields after the adsorption process, exhibit outstanding adsorption capacity and heterogeneous catalytic properties, making them promising materials for water treatment applications. In particular, by modifying the polydopamine (PDA) coating, MPCs can acquire enhanced high reactivity, antibacterial properties, and biocompatibility. This also provides an attractive platform for further fabrication of hybrid materials with specific adsorption, catalytic, antibacterial, and water-oil separation capabilities. To systematically provide the background knowledge and recent research advances in MPCs, this paper presents a critical review of MPCs for water treatment in terms of both structure and mechanisms of effect in applications. Firstly, the impact of different PDA positions within the composite structure is investigated to summarize the optimization of properties contributed by PDA when acting as the shell, core, or bridge. The roles of various secondary modifications of magnetic materials by PDA in addressing water pollution problems are explored. It is anticipated that this work will be a stimulus for further research and development of magnetic composite materials with real-world application potential.
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Affiliation(s)
- Qinglin Zhou
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Pengli Lei
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Siyao Cheng
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Hao Wang
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Wei Dong
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China.
| | - Xihao Pan
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China; Zhejiang University-University of Edinburgh Institute, Zhejiang University, Hangzhou 310000, Zhejiang, China.
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5
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Chen W, Lu X, Zheng Q, Hu D, Chen Y, Yu Q, Fan Q, Li H, Liu H. Interface Optimizing Core-Shell PZT@Carbon/Polyurethane Composites with Enhanced Passive Piezoelectric Vibration Damping Performance. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7742-7753. [PMID: 38308589 DOI: 10.1021/acsami.3c16667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2024]
Abstract
Presently, piezoelectric materials are gradually playing a significant role within composites to improve the damping and vibrational attenuation capacities of host composites. Previous studies paid attention to isolating the mechanical damping contribution and piezoelectric contribution of polymer-based piezoelectric composites (PPCs). However, reports detailing the piezoelectric damping of such materials have not paid sufficient attention to the technologies and methods to improve the piezoelectric damping of PPCs. In this study, we propose novel damping polyurethane (PU)-based piezoelectric composites with carbon-coated piezoelectric fillers (PZT@C/PU) with improved piezoelectric damping ability. The mechanical damping and piezoelectric damping of composites were theoretically decoupled, and we elaborate on the mechanism enhancing piezoelectric damping through the carbon coating strategy by comparing with the composites with nonpiezoelectric fillers. The as-fabricated core-shell structure having an optimized interface exhibits the proposed PZT@C/PU composite pads with relatively prominent damping ability (loss factor tan δmax = 1.0, tan δRT = 0.3), ductility (400.63%), and sound isolating behavior (transmission loss TL > 23 dB). Moreover, the vibration test results of as-fabricated sandwich structural PZT@C/PU composite damping devices exhibit outstanding vibration attenuating behavior (damping ratio ζ = 0.198). The study herein validates that the carbon shell coated on piezoelectric fillers would effectively increase damping performance of PU-based piezoelectric composites by the enhancement of piezoelectric performance caused by carbon coating piezoelectric fillers, which indicates that this material has potential for future applications in the field of vibration and noise reduction, thereby driving forward and expanding the fundamental understanding in the area of PPCs damping and vibration attenuation.
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Affiliation(s)
- Wenzheng Chen
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Xiaoling Lu
- Shanghai Marine Diesel Engine Research Institute, Shanghai 201108, P. R. China
| | - Qitan Zheng
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Dongsen Hu
- China Ship Scientific Research Center, Wuxi 214082, Jiangsu, P. R. China
| | - Yujie Chen
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Qili Yu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Qunfu Fan
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Hua Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Hezhou Liu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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6
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Mashhadi E, Safaei-Ghomi J. Sulfonated magnetic spirulina nanobiomaterial as a novel and environmentally friendly catalyst for the synthesis of dihydroquinazolin-4(1H)-ones in aqueous medium. Sci Rep 2024; 14:2296. [PMID: 38280917 PMCID: PMC10821933 DOI: 10.1038/s41598-024-52749-2] [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: 09/26/2023] [Accepted: 01/23/2024] [Indexed: 01/29/2024] Open
Abstract
Spirulina algae is an excellent candidate for catalyst preparation due to its reactive functional groups, cost-effectiveness, widespread commercial accessibility, and biodegradability. In this study, magnetized Spirulina was used for the synthesis of dihydroquinazolin-4(1H)-ones (DHQZs) as catalyst. Magnetized Spirulina was produced by CoFe2O4 and sulfonation method using chlorosulfonic acid to create the catalyst [CoFe2O4-Sp-SO3H]. It was affirmed by various techniques, including Fourier transform infrared (FT-IR), Vibrating sample magnetometry (VSM), Powder X-ray diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDS), Thermogravimetric analysis (TGA), Transmission electron microscopy (TEM), Field emission scanning electron microscopy (FE-SEM), and elemental mapping techniques. DHQZs synthesis was accomplished through a concise one-pot, three-component reaction involving a range of diverse aldehydes, isatoic anhydride, and primary aromatic amine, within an aqueous medium. The method offers several advantages, including using green conditions, the generation of several new 2-furan-quinazolinone derivatives, chromatography-free purification, short reaction times, appropriate yield of product (75-96%), and catalyst recyclability. The proposed catalyst and water as solvent demonstrated a strong synergistic effect, leading to the prosperous synthesis of various novel dihydroquinazolinones at 60 °C. These numerous benefits make our approach highly attractive for academic research and industrial applications.
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Affiliation(s)
- Elahe Mashhadi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Islamic Republic of Iran
| | - Javad Safaei-Ghomi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Islamic Republic of Iran.
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7
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Yang L, Guo H, Hou T, Zhang J, Li F. Metal-mediated Fe 3O 4@polydopamine-aptamer capture nanoprobe coupling multifunctional MXene@Au@Pt nanozyme for direct and portable photothermal analysis of circulating breast cancer cells. Biosens Bioelectron 2023; 234:115346. [PMID: 37148800 DOI: 10.1016/j.bios.2023.115346] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 04/11/2023] [Accepted: 04/21/2023] [Indexed: 05/08/2023]
Abstract
Breast cancer (BC) is the most common cancer in the world and circulating tumor cells (CTCs) are reliable biomarkers for early breast cancer diagnosis in a non-invasive manner. However, effective isolation and sensitive detection of BC-CTCs by portable devices in human blood samples are extremely challenging. Herein, we proposed a highly sensitive and portable photothermal cytosensor for direct capture and quantification of BC-CTCs. To achieve efficient isolation of BC-CTCs, aptamer functionalized Fe3O4@PDA nanoprobe was facilely prepared through Ca2+-mediated DNA adsorption. To further detect the captured BC-CTCs with high sensitivity, multifunctional two-dimensional Ti3C2@Au@Pt nanozyme was synthesized, which not only possessed superior photothermal effect but also exhibited high peroxidase-like activity for catalyzing 3,3',5,5'-tetramethylbenzidine (TMB) to produce TMB oxide (oxTMB) with a strong photothermal characteristic, combining with Ti3C2@Au@Pt to synergistically amplify the temperature signal. Moreover, numerous Ti3C2@Au@Pt nanocomposites would be selectively attained on the BC-CTCs surface through multi-aptamer recognition and binding strategy, which further enhanced the specificity and facilitated signal amplification. Therefore, direct separation and highly sensitive detection of BC-CTCs was successfully achieved in human blood samples. More significantly, the controlled release of the captured BC-CTCs without affecting cell viability could be straightforwardly realized by a simple strand displacement reaction. Thus, with the distinct features of portability, high sensitivity, and easy operation, the current method holds great promise for early diagnosis of breast cancer.
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Affiliation(s)
- Limin Yang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China
| | - Heng Guo
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China
| | - Ting Hou
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China
| | - Jingang Zhang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
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8
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Ni-Pd-Incorporated Fe3O4 Yolk-Shelled Nanospheres as Efficient Magnetically Recyclable Catalysts for Reduction of N-Containing Unsaturated Compounds. Catalysts 2023. [DOI: 10.3390/catal13010190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The use of metal-based heterogeneous catalysts for the degradation of N-containing organic dyes has attracted much attention due to their excellent treatment efficiency and capability. Here, we report the synthesis of heterometals (Ni and Pd)-incorporated Fe3O4 (Ni-Pd/Fe3O4) yolk-shelled nanospheres for the catalytic reduction of N-containing organic dyes using a facile combination of solvothermal treatment and high-temperature annealing steps. Benefiting from the magnetic properties and the yolk-shelled structure of the Fe3O4 support, as well as the uniformly dispersed active heterometals incorporated in the shell and yolk of spherical Fe3O4 nanoparticles, the as-prepared Ni-Pd/Fe3O4 composite shows excellent recyclability and enhanced catalytic activity for three N-containing organic dyes (e.g., 4-nitrophenol, Congo red, and methyl orange) compared with its mono metal counterparts (e.g., Ni/Fe3O4 and Pd/Fe3O4). In the 4-nitrophenol reduction reaction, the catalytic activity of Ni-Pd/Fe3O4 was superior to many Fe3O4-supported nanocatalysts reported within the last five years. This work provides an effective strategy to boost the activity of iron oxide-based catalytic materials via dual or even multiple heterometallic incorporation strategy and sheds new light on environmental catalysis.
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9
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Metal-Phenolic Network-Functionalized Magnetic Nanoparticles for Enzyme Immobilization. Appl Biochem Biotechnol 2022; 194:5305-5321. [PMID: 35751761 DOI: 10.1007/s12010-022-04003-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2022] [Indexed: 11/02/2022]
Abstract
Metal-phenolic network (MPN) coating is an emerging class of surface functionalization method and has attracted ever-growing interest in areas of bioengineering and biotechnology. Although various applications for MPN coatings, including drug delivery, cytoprotection, and antimicrobial surfaces, have been studied in the form of films and capsules, their interaction with enzyme molecules and the subsequent influence of biocatalytic properties are poorly understood. Herein, MPN coatings composed of different types of metal ions (CuII, FeIII, ZnII, MnII, AuIV) coordinated with tannic acid (TA) were fabricated on Fe3O4 nanoparticles as a facile nanoplatform for immobilizing alcohol dehydrogenase (ADH). The results show that the different polarization capacities of metal ions (i.e., Lewis acids) could affect the hydrophilicity and hydrophobicity of the coordinated MPN coatings, while the enzyme immobilization rate, biocatalytic activity, and stability are in turn influenced by the surface properties of the MPN coatings. Among the different metal ions, the Fe3O4-TA-ZnII showed the highest enzyme immobilizing efficiency (91.53%) and catalytic activity (60.45 U/mg ADH). Besides, the enzyme re-usability and tolerance to extreme conditions were both enhanced after immobilization. These results highlight an advanced strategy for the interfacial construction of hybrid heterogeneous biocatalytic systems with potential use in biomedical applications.
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10
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Zhang H, Li YJ, Zeng J, Liu HP, Zhou YL. Polydopamine‐bridged synthesis of
h‐BN
@
PDA
@
PbWO
4
as multifunctional enhancers for γ‐shielding performance and thermal conductivity of neoprene composites. J Appl Polym Sci 2022. [DOI: 10.1002/app.52335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hao Zhang
- State Key Laboratory of Environment‐friendly Energy Materials, School of Materials Science and Engineering Southwest University of Science and Technology Mianyang China
| | - Ying Jun Li
- State Key Laboratory of Environment‐friendly Energy Materials, School of Materials Science and Engineering Southwest University of Science and Technology Mianyang China
| | - Jun Zeng
- State Key Laboratory of Environment‐friendly Energy Materials, School of Materials Science and Engineering Southwest University of Science and Technology Mianyang China
| | - Hui Ping Liu
- State Key Laboratory of Environment‐friendly Energy Materials, School of Materials Science and Engineering Southwest University of Science and Technology Mianyang China
| | - Yuan Lin Zhou
- State Key Laboratory of Environment‐friendly Energy Materials, School of Materials Science and Engineering Southwest University of Science and Technology Mianyang China
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11
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Liu J, Liu Y, Cao Y, Sang S, Guan L, Wang Y, Wang J. Preparation of Fe3O4@PDA@Au@GO Composite as SERS Substrate and Its Application in the Enrichment and Detection for Phenanthrene. MICROMACHINES 2022; 13:mi13010128. [PMID: 35056293 PMCID: PMC8778011 DOI: 10.3390/mi13010128] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 01/15/2023]
Abstract
In this study, highly active Fe3O4@PDA@Au@GO surface-enhanced Raman spectroscopy (SERS) active substrate was synthesized for application in the enrichment and detection of trace polycyclic aromatic hydrocarbons (PAHs) in the environment. The morphology and structure were characterized by transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) and UV–visible absorption spectrum (UV–vis spectra). The effect of each component of Fe3O4@PDA@Au@GO nanocomposites on SERS was explored, and it was found that gold nanoparticles (Au NPs) are crucial to enhance the Raman signal based on the electromagnetic enhancement mechanism, and apart from enriching the PAHs through π–π interaction, graphene oxide (GO) also generates strong chemical enhancement of Raman signals, and polydopamine (PDA) can prevent Au from shedding and agglomeration. The existence of Fe3O4 aided the quick separation of substrate from the solutions, which greatly simplified the detection procedure and facilitated the reuse of the substrate. The SERS active substrate was used to detect phenanthrene in aqueous solution with a detection limit of 10−7 g/L (5.6 × 10−10 mol/L), which is much lower than that of ordinary Raman, it is promising for application in the enrichment and detection of trace PAHs.
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Affiliation(s)
- Junyu Liu
- College of Material and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China;
- Department of Petroleum, Oil and Lubricants, Army Logistics Academy of PLA, Chongqing 401331, China; (Y.C.); (Y.W.); (J.W.)
| | - Yiwei Liu
- Department of Basic Courses, Army Logistics Academy of PLA, Chongqing 401331, China;
| | - Yida Cao
- Department of Petroleum, Oil and Lubricants, Army Logistics Academy of PLA, Chongqing 401331, China; (Y.C.); (Y.W.); (J.W.)
| | - Shihua Sang
- College of Material and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China;
- Correspondence: (S.S.); (L.G.)
| | - Liang Guan
- Department of Petroleum, Oil and Lubricants, Army Logistics Academy of PLA, Chongqing 401331, China; (Y.C.); (Y.W.); (J.W.)
- Correspondence: (S.S.); (L.G.)
| | - Yinyin Wang
- Department of Petroleum, Oil and Lubricants, Army Logistics Academy of PLA, Chongqing 401331, China; (Y.C.); (Y.W.); (J.W.)
| | - Jian Wang
- Department of Petroleum, Oil and Lubricants, Army Logistics Academy of PLA, Chongqing 401331, China; (Y.C.); (Y.W.); (J.W.)
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12
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Chou SC, Sun BY, Fan TL, Chiang YT, Chiao JC, Wu PW. Fabrication of biocompatible and conductive polypropylene micromembrane as a soft and porous electrode. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.09.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Xiong Q, Fang Q, Xu K, Liu G, Sang M, Xu Y, Hao L, Xuan S. Near-infrared light-responsive photothermal α-Fe 2O 3@Au/PDA core/shell nanostructure with on-off controllable anti-bacterial effects. Dalton Trans 2021; 50:14235-14243. [PMID: 34550127 DOI: 10.1039/d1dt02251b] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Antimicrobial materials are expected to be alternatives for antibiotics against multidrug-resistant bacteria. In this paper, non-spherical α-Fe2O3@Au/PDA core/shell nanoparticles with tunable shapes are synthesized by a one-step in situ oxidation-redox polymerization method toward near infrared light-responsive antibacterial therapy. The thickness and composition of the Au/PDA hybrid shell can be controlled by varying the concentration of HAuCl4 and the dopamine precursor. Owing to the wonderful photothermal characteristics originating from the Au/PDA shell, the spindle α-Fe2O3@Au/PDA core shell nanoparticles exhibit excellent photothermal sterilization effects against both Escherichia coli and Staphylococcus aureus at low concentrations. Meanwhile, the NIR photothermal induced bactericidal performance indicates that α-Fe2O3@Au/PDA hybrid particles with tunable non-spherical shapes possess unique controllable antibacterial effects. As a result, this finding provides a simple strategy for fabricating high performance photothermal antibacterial agents and the final products possess high potential in synergistic antimicrobial therapy.
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Affiliation(s)
- Qingshan Xiong
- School of Food and Biological Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei, 230009, PR China.
| | - Qunling Fang
- School of Food and Biological Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei, 230009, PR China.
| | - Kezhu Xu
- School of Food and Biological Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei, 230009, PR China.
| | - Guanghui Liu
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiu Avenue, Hefei, Anhui, 230601, PR China
| | - Min Sang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, PR China.
| | - Yunqi Xu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, PR China.
| | - Lingyun Hao
- School of Materials Engineering, Jinling Institute of Technology, Nanjing 211169, PR China
| | - Shouhu Xuan
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, PR China.
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14
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New Ultrasensitive Sandwich-Type Immunoassay of Dendritic Tri-Fan Blade-like PdAuCu Nanoparticles/Amine-Functionalized Graphene Oxide for Label-Free Detection of Carcinoembryonic Antigen. MICROMACHINES 2021; 12:mi12101256. [PMID: 34683307 PMCID: PMC8537010 DOI: 10.3390/mi12101256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 01/02/2023]
Abstract
The early detection of tumor markers has an effective role in the treatment of cancer. Here, a new sandwich-type electrochemical immunosensor for early label-free detection of the cancer biomarker carcinoembryonic antigen (CEA) was developed. Dendritic tri-fan blade-like PdAuCu nanoparticles (PdAuCu NPs)/amine functionalized graphene oxide (NH2-GO) were the label of secondary antibodies (Ab2), and Au nanoparticle-decorated polydopamines (Au/PDA) were immobilized on a screen-printed carbon electrode (SPCE) as the substrate materials. Dendritic tri-fan blade-like PdAuCu NPs/NH2-GO was synthesized according to a simple hydrothermal procedure and used to immobilize antibodies (Ab2) with large surfaces areas, increased catalytic properties and good adsorption to amplify the current signals. Subsequently, Ab2/PdAuCu NPs/NH2-GO catalyzed the reduction of H2O2 in the sandwich-type immunoreactions. Under optimal conditions, the immunosensor exhibited a satisfactory response to CEA with a limit detection of 0.07 pg mL−1 and a linear detection range from 0.1 pg mL−1 to 200 ng mL−1. The proposed immunosensor could be suitable enough for a real sample analysis of CEA, and has clinical value in the early diagnosis of cancer.
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15
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Zhang J, Cao R, Song W, Liu L, Li J. One-step method to prepare core-shell magnetic nanocomposite encapsulating silver nanoparticles with superior catalytic and antibacterial activity. J Colloid Interface Sci 2021; 607:1730-1740. [PMID: 34598030 DOI: 10.1016/j.jcis.2021.09.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 08/31/2021] [Accepted: 09/09/2021] [Indexed: 10/20/2022]
Abstract
A facile one-step method for synthesis of magnetic core-shell nanocomposite composed of h-Fe3O4 (hollow Fe3O4) core and stable PDA (polydopamine) shell with functional Ag NPs (silver nanoparticles) evenly distributed between them is developed. The h-Fe3O4@Ag/PDA nanocomposite showed excellent catalytic activity in the reaction for reducing azo dyes (methyl orange, methylene blue, and congo red), and the ratios of k values to the weight of h-Fe3O4@Ag/PDA were calculated to be 0.302, 0.0545, and 0.895 min-1 mg-1, respectively. Besides, the h-Fe3O4@Ag/PDA nanocomposite also exhibited good antibacterial activity in the experiment of culturing Bacillus subtilis, and the MIC (minimum inhibitory concentration) was as low as 12.5 μg/mL. Because the Ag NPs will not be leached in the solution under the protection of the PDA shell, the catalytic and antibacterial activities of h-Fe3O4@Ag/PDA nanocomposite could maintain more than 90% after five cycles. Intriguingly, this simple synthetic method can be extended to fabricate different multifunctional nanocomposites such as the spherical SiO2@Ag/PDA and rod-like Fe2O3@Ag/PDA. Overall, the facile fabrication process, the superior catalytic and antibacterial activity, and the excellent stability, endow the h-Fe3O4@Ag/PDA to be a promising nanocomposite.
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Affiliation(s)
- Jianfeng Zhang
- CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China; University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Ruya Cao
- CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China; University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Wencheng Song
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health & Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, PR China
| | - Lei Liu
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health & Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, PR China
| | - Jiaxing Li
- CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China; University of Science and Technology of China, Hefei, Anhui 230026, PR China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, PR China.
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16
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Gürbüz MU, Elmacı G, Zhang Y, Meng X, Ertürk AS. Cryptomelane nanorods coated with Ni ion doped Birnessite polymorphs as bifunctional efficient catalyst for the oxygen evolution reaction and degradation of organic contaminants. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mustafa Ulvi Gürbüz
- Department of Chemistry, Faculty of Arts and Sciences Yıldız Technical University Istanbul Turkey
| | - Gökhan Elmacı
- Department of Chemistry School of Technical Sciences, Adıyaman University Adıyaman Turkey
| | - Yajun Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou China
| | - Xu Meng
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou China
| | - Ali Serol Ertürk
- Department of Analytical Chemistry, Faculty of Pharmacy Adıyaman University Adıyaman Turkey
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17
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Nasehi N, Mirza B, Soleimani‐Amiri S. Fe
3
O
4
@C@
prNHSO
3
H
: A novel magnetically recoverable heterogeneous catalyst in green synthesis of diverse triazoles. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Niloufar Nasehi
- Department of Chemistry, Karaj Branch Islamic Azad University Karaj Iran
| | - Behrooz Mirza
- Department of Chemistry, Karaj Branch Islamic Azad University Karaj Iran
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18
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Liu Y, Gan Y, Zhao C, Yang J, Zhu H, Li Y, Shuai S, Hao J. Shaping Magnetite by Hydroxyl Group Numbers of Small Molecules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:5582-5590. [PMID: 33938217 DOI: 10.1021/acs.langmuir.1c00424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Despite numerous reports on magnetite formation with the assistance of various additives, the role of hydroxyl group (-OH) numbers in small polyol molecules has not yet been understood well. We selected small molecules containing different -OH numbers, such as ethanol, ethylene glycol, propanetriol, butanetetrol, pentitol, hexanehexol, and cyclohexanehexol, as additives in coprecipitation. By increasing the -OH number in these small polyol molecules, the formation of crystallization was slowed, and the size and shape of magnetite were regulated as well possibly due to the changed complexation strength and the stability of the precursor. The increase in temperature and the Fe2+/Fe3+ ratio can reduce the complexation strength. The nucleation and growth of magnetite proceed possibly through the aggregation of polyol-stabilized amorphous complexes and two-line ferrihydrite with low crystallinity based on the -OH numbers, suggesting a nonclassical pathway. The as-prepared magnetite showed a r2/r1 ratio after in vitro MRI measurement as follows: Fe3O4@He-6OH rod < Fe3O4@Pr-3OH sheet < Fe3O4@Pe-5OH cube. The Fe3O4@He-6OH rod and Fe3O4@Pr-3OH sheet displayed T1-T2 dual modal contrast ability, while the Fe3O4@Pe-5OH cube can be T2-dominated. This research provides a simple but an essential approach for designing MRI contrast agents.
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Affiliation(s)
- Yu Liu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054 China
| | - Ying Gan
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054 China
| | - Cong Zhao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054 China
| | - Jingxuan Yang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054 China
| | - Hongyu Zhu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054 China
| | - Yang Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054 China
| | - Shirong Shuai
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054 China
| | - Jianyuan Hao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054 China
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19
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Gürbüz MU, Elmacı G, Ertürk AS. In situ deposition of silver nanoparticles on polydopamine‐coated manganese ferrite nanoparticles: Synthesis, characterization, and application to the degradation of organic dye pollutants as an efficient magnetically recyclable nanocatalyst. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6284] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Mustafa Ulvi Gürbüz
- Department of Chemistry, Faculty of Arts and Sciences Yıldız Technical University Istanbul 34220 Turkey
| | - Gökhan Elmacı
- Department of Chemistry, School of Technical Sciences Adıyaman University Adıyaman 02040 Turkey
| | - Ali Serol Ertürk
- Department of Analytical Chemistry, Faculty of Pharmacy Adıyaman University Adıyaman 02040 Turkey
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20
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Xing C, Ma P, Zhao M, Chang J, Guo X, Sun L, Li M. Facile and green synthesis of decatungstate-based nickel( ii) complex coated onto modified Fe 3O 4 nanoparticles with enhanced antimicrobial activity against antibiotic-resistant bacteria. CrystEngComm 2021. [DOI: 10.1039/d1ce00421b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A nanostructured Fe3O4@PDA@Ni-DT composite was successfully prepared with high-efficiency antibacterial properties and excellent recyclable performance.
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Affiliation(s)
- Cuili Xing
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Pengtao Ma
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Meng Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Jiangnan Chang
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Xiaoyuan Guo
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Lin Sun
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Mingxue Li
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
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21
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Gulati A, Malik J, Mandeep, Kakkar R. Peanut shell biotemplate to fabricate porous magnetic Co3O4 coral reef and its catalytic properties for p-nitrophenol reduction and oxidative dye degradation. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125328] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Gandon A, Nguyen CC, Kaliaguine S, Do TO. Synthesis of single‐phase and controlled monodisperse magnetite
Fe
3
O
4
nanoparticles. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23889] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Arnaud Gandon
- Department of Chemical Engineering Laval University Quebec Quebec Canada
| | - Chinh Chien Nguyen
- Department of Chemical Engineering Laval University Quebec Quebec Canada
- Institute of Research and Development Duy Tan University Da Nang Vietnam
| | - Serge Kaliaguine
- Department of Chemical Engineering Laval University Quebec Quebec Canada
| | - Trong On Do
- Department of Chemical Engineering Laval University Quebec Quebec Canada
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23
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Fang Q, Xu K, Zhang J, Xiong Q, Duan J, Xuan S. Hybrid Polydopamine/Ag Shell-Encapsulated Magnetic Fe 3O 4 Nanosphere with High Antibacterial Activity. MATERIALS 2020; 13:ma13173872. [PMID: 32887245 PMCID: PMC7504453 DOI: 10.3390/ma13173872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/27/2020] [Accepted: 08/30/2020] [Indexed: 12/13/2022]
Abstract
The bacteria, which usually contaminate water environment, often cause terrible infectious diseases thus seriously threaten people's health. To meet the increasing requirement of the public health care, an easily separable nanomaterial with sustainable anti-bacteria performance is required. This work reports a Fe3O4@PDA/Ag/PDA core-shell nanosphere in which the Ag nanocrystals immobilized on the magnetic carrier are protected by an external polydopamine (PDA) layer. The magnetic hybrid nanospheres are constructed by a tunable coating method and the particle parameters can be effectively controlled by the experimental condition. The antibacterial potential of the nanospheres is evaluable by using the Staphylococcus aureus and Escherichia coli as the models. The results indicate the Fe3O4@PDA/Ag/PDA core-shell nanospheres have a high antibacterial performance by measuring the minimum inhibitory concentration and the minimum bactericidal concentration. Finally, the product is expected to have a sustainable activity because the protecting PDA layer reduce the releasing rate of the Ag+ ions and the materials can be magnetically recovered from the media after the disinfection procedure.
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Affiliation(s)
- Qunling Fang
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (K.X.); (J.Z.); (Q.X.); (J.D.)
- Correspondence: (Q.F.); (S.X.)
| | - Kezhu Xu
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (K.X.); (J.Z.); (Q.X.); (J.D.)
| | - Jianfeng Zhang
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (K.X.); (J.Z.); (Q.X.); (J.D.)
| | - Qingshan Xiong
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (K.X.); (J.Z.); (Q.X.); (J.D.)
| | - Jinyu Duan
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (K.X.); (J.Z.); (Q.X.); (J.D.)
| | - Shouhu Xuan
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China
- Correspondence: (Q.F.); (S.X.)
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24
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Magnetic microsphere with hierarchical LDH/polydopamine shell encapsulated Fe3O4 core for carrying Ag nanocatalyst. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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25
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Imura Y, Kan R, Akiyama R, Saito H, Morita-Imura C, Kawai T. Magnetic Fe 3O 4-Supported Gold Nanoflowers with Lattice-Selected Surfaces: Preparation and Catalytic Performance. ACS OMEGA 2020; 5:15755-15760. [PMID: 32637851 PMCID: PMC7331204 DOI: 10.1021/acsomega.0c02340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
Nanoflowers (NFs)-shape-controlled noble metal nanocrystals-have garnered significant attention because of their novel catalytic properties and applicability. In this paper, we report the preparation and catalytic performance of a magnetic Fe3O4-supported AuNF catalyst with a clean surface. The magnetically supported AuNFs were obtained by using magnetic Fe3O4 as the support. However, when nonmagnetic γ-Al2O3 was utilized as the support, the AuNFs did not exhibit a magnetic response. These supported AuNFs were utilized to catalyze the oxidation of 1-phenylethyl alcohol to acetophenone using air (1 atm) as the oxidant. The rate of formation of acetophenone using supported AuNFs was 8-fold higher than that of acetophenone using supported spherical Au nanoparticles of comparable size. In addition, the Fe3O4-supported AuNFs exhibited a higher rate of formation of acetophenone than the Al2O3-supported AuNFs. The Fe3O4-supported AuNFs were recovered using a magnet, and the recovered catalyst was reused under identical catalytic reaction conditions. The rate of formation of acetophenone using recovered Fe3O4-supported AuNFs remained unchanged, demonstrating no loss of catalytic activity.
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Affiliation(s)
- Yoshiro Imura
- Department
of Industrial Chemistry, Tokyo University
of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Ryota Kan
- Department
of Industrial Chemistry, Tokyo University
of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Ryota Akiyama
- Department
of Industrial Chemistry, Tokyo University
of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Haruna Saito
- Department
of Industrial Chemistry, Tokyo University
of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Clara Morita-Imura
- Department
of Chemistry, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Takeshi Kawai
- Department
of Industrial Chemistry, Tokyo University
of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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26
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Affiliation(s)
- Árpád Molnár
- Department of Organic Chemistry University of Szeged Dóm tér 8 Szeged 6720 Hungary
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27
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Nanoparticles Functionalized by Conducting Polymers and Their Electrorheological and Magnetorheological Applications. Polymers (Basel) 2020; 12:polym12010204. [PMID: 31941163 PMCID: PMC7023545 DOI: 10.3390/polym12010204] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 12/25/2019] [Accepted: 01/06/2020] [Indexed: 11/17/2022] Open
Abstract
Conducting polymer-coated nanoparticles used in electrorheological (ER) and magnetorheological (MR) fluids are reviewed along with their fabrication methods, morphologies, thermal properties, sedimentation stabilities, dielectric properties, and ER and MR characteristics under applied electric or magnetic fields. After functionalization of the conducting polymers, the nanoparticles exhibited properties suitable for use as ER materials, and materials in which magnetic particles are used as a core could also be applied as MR materials. The conducting polymers covered in this study included polyaniline and its derivatives, poly(3,4-ethylenedioxythiophene), poly(3-octylthiophene), polypyrrole, and poly(diphenylamine). The modified nanoparticles included polystyrene, poly(methyl methacrylate), silica, titanium dioxide, maghemite, magnetite, and nanoclay. This article reviews many core-shell structured conducting polymer-coated nanoparticles used in ER and MR fluids and is expected to contribute to the understanding and development of ER and MR materials.
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28
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Wang X, Song S, Zhang H. A redox interaction-engaged strategy for multicomponent nanomaterials. Chem Soc Rev 2020; 49:736-764. [DOI: 10.1039/c9cs00379g] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The review article focuses on the redox interaction-engaged strategy that offers a powerful way to construct multicomponent nanomaterials with precisely-controlled size, shape, composition and hybridization of nanostructures.
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Affiliation(s)
- Xiao Wang
- School of Chemical and Biological Engineering
- Seoul National University
- Seoul
- Republic of Korea
| | - Shuyan Song
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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29
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Zhang S, Xu Y, Zhao D, Chen W, Li H, Hou C. Preparation of Magnetic CuFe 2O 4@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose Nanocrystals. Molecules 2019; 25:E124. [PMID: 31905655 PMCID: PMC6982921 DOI: 10.3390/molecules25010124] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 12/16/2019] [Accepted: 12/18/2019] [Indexed: 12/12/2022] Open
Abstract
A facile approach was successfully developed for synthesis of cellulose nanocrystals (CNC)-supported magnetic CuFe2O4@Ag@ZIF-8 nanospheres which consist of a paramagnetic CuFe2O4@Ag core and porous ZIF-8 shell. The CuFe2O4 nanoparticles (NPs) were first prepared in the presence of CNC and dispersant. Ag NPs were then deposited on the CuFe2O4/CNC composites via an in situ reduction directed by dopamine polymerization (PDA). The CuFe2O4/CNC@Ag@ZIF-8 nanocomposite was characterized by TEM, FTIR, XRD, N2 adsorption-desorption isotherms, VSM, and XPS. Catalytic studies showed that the CuFe2O4/CNC@Ag@ZIF-8 catalyst had much higher catalytic activity than CuFe2O4@Ag catalyst with the rate constant of 0.64 min-1. Because of the integration of ZIF-8 with CuFe2O4/CNC@Ag that combines the advantaged of each component, the nanocomposites were demonstrated to have an enhanced catalytic activity in heterogeneous catalysis. Therefore, these results demonstrate a new method for the fabrication of CNC-supported magnetic core-shell catalysts, which display great potential for application in biocatalysis and environmental chemistry.
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Affiliation(s)
- Sufeng Zhang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, China; (Y.X.); (D.Z.); (W.C.); (H.L.); (C.H.)
| | - Yongshe Xu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, China; (Y.X.); (D.Z.); (W.C.); (H.L.); (C.H.)
- Tianjin China Banknote Paper Co., Ltd., Tianjin 300385, China
| | - Dongyan Zhao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, China; (Y.X.); (D.Z.); (W.C.); (H.L.); (C.H.)
| | - Wenqiang Chen
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, China; (Y.X.); (D.Z.); (W.C.); (H.L.); (C.H.)
| | - Hao Li
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, China; (Y.X.); (D.Z.); (W.C.); (H.L.); (C.H.)
| | - Chen Hou
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, China; (Y.X.); (D.Z.); (W.C.); (H.L.); (C.H.)
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30
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Homogeneous magnetic Ag-Au alloy microparticles for ultrasensitive catalytic reduction of aromatic nitro compounds. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123697] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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31
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Fang Q, Zhang J, Bai L, Duan J, Xu H, Cham-Fai Leung K, Xuan S. In situ redox-oxidation polymerization for magnetic core-shell nanostructure with polydopamine-encapsulated-Au hybrid shell. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:15-25. [PMID: 30594714 DOI: 10.1016/j.jhazmat.2018.12.059] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/04/2018] [Accepted: 12/17/2018] [Indexed: 06/09/2023]
Abstract
This work reports a facile one-step method for the fabricating Fe3O4@Au/polydopamine sandwich-like core-shell nanostructure, in which the Au/polydopamine (Au/PDA) hybrid shell is obtained via an in situ redox-oxidation polymerization between the HAuCl4 and dopamine. The content of Au nanocrystals, shell thickness, and particle sizes are tunable by varying the experimental parameters. Intriguingly, this general method can be applied for different functional nanostructures such as the β-FeOOH@Au/PDA, SiO2@Au/PDA, and CNT@Au/PDA nanocomposites. A possible formation mechanism is proposed and it is found that the surface interaction plays a key role in determining the final nanostructure. The as-prepared Fe3O4@Au/PDA exhibited eminent catalytic activity on the reduction of 4-nitrophenol. Since the external PDA shell prevents the Au nanocrystals from leaching during the reduction, the cycling activity has been maintained as high as 95% after seven times of catalytic reaction.
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Affiliation(s)
- Qunling Fang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, PR China.
| | - Jianfeng Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, PR China
| | - Linfeng Bai
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, PR China
| | - Jinyu Duan
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, PR China
| | - Huajian Xu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, PR China
| | - Ken Cham-Fai Leung
- Department of Chemistry, Partner State Key Laboratory of Biological and Environmental Analysis, The Hong Kong Baptist University, Kowloon, Hong Kong Special Administrative Region
| | - Shouhu Xuan
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, PR China.
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32
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Ghiasbeigi E, Soleiman‐Beigi M. Copper Immobilized on Isonicotinic Acid Hydrazide Functionalized Nano‐Magnetite as a Novel Recyclable Catalyst for Direct Synthesis of Phenols and Anilines. ChemistrySelect 2019. [DOI: 10.1002/slct.201803770] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Elahe Ghiasbeigi
- Department of Chemistry Basic of Sciences FacultyIlam University PO Box 69315–516 Ilam Iran
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33
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Gao R, Wang S, Zhou K, Qian X. Mussel-inspired decoration of Ni(OH)2
nanosheets on 2D MoS2
towards enhancing thermal and flame retardancy properties of poly(lactic acid). POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4521] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Rui Gao
- Faculty of Engineering; China University of Geosciences (Wuhan); Wuhan PR China
| | - Shuguang Wang
- Faculty of Engineering; China University of Geosciences (Wuhan); Wuhan PR China
| | - Keqing Zhou
- Faculty of Engineering; China University of Geosciences (Wuhan); Wuhan PR China
- Key Laboratory of Polymer Processing Engineering; South China University of Technology, Ministry of Education; Guangzhou PR China
| | - Xiaodong Qian
- Key Laboratory of Fire-fighting and Rescue Technology, Ministry of Public Security; Chinese People's Armed Police Force Academy; Langfang PR China
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34
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Jiao W, Chen C, You W, Zhang J, Liu J, Che R. Yolk-Shell Fe/Fe 4 N@Pd/C Magnetic Nanocomposite as an Efficient Recyclable ORR Electrocatalyst and SERS Substrate. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1805032. [PMID: 30650258 DOI: 10.1002/smll.201805032] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/27/2018] [Indexed: 06/09/2023]
Abstract
A yolk-shell Fe/Fe4 N@Pd/C (FFPC) nanocomposite is synthesized successfully by two facile steps: interfacial polymerization and annealing treatment. The concentration of Pd2+ is the key factor for the density of Pd nanoparticles (Pd NPs) embedded in the carbon shells, which plays a role in the oxygen reduction reaction (ORR) and surface-enhanced Raman scattering (SERS) properties. The ORR and SERS performances of FFPC nanocomposites under different concentrations of PdCl2 are investigated. The optimal ORR performance exhibits that onset potential and tafel slope can reach 0.937 V (vs reversible hydrogen electrode (RHE)) and 74 mV dec-1 , respectively, which is attributed to the synergistic effects of good electrical conductivity, large electrochemically active areas, and strong interfacial charge polarization. Off-axis electron holography reveals that interfacial charge polarization could facilitate the ORR of Pd NPs and defective carbon simultaneously and the shell with low density of Pd NPs is easier to form strong interfacial charge polarization. Moreover, FFPC-3 with maximum EF of 2.3 × 105 results from more hot-spots, local positive charge centers to attract rhodamine 6G molecules, and magnetic cores. This work not only offers a recyclable multifunctional nanocomposite with excellent performance, but also has instructional implications for interfacial engineering for electrocatalysts design.
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Affiliation(s)
- Wenling Jiao
- Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China
| | - Chen Chen
- Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Wenbin You
- Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China
| | - Jie Zhang
- Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China
| | - Jiwei Liu
- Department of Materials Science and Engineering, Changzhou University, Jiangsu, 213164, China
| | - Renchao Che
- Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, China
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35
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Bai L, Jiang W, Sang M, Liu M, Xuan S, Wang S, Leung KCF, Gong X. Magnetic microspheres with polydopamine encapsulated ultra-small noble metal nanocrystals as mimetic enzymes for the colorimetric detection of H2O2 and glucose. J Mater Chem B 2019. [DOI: 10.1039/c9tb00755e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A novel sandwich-structured magnetic microsphere with ultra-small noble metal nanocrystals as a mimetic enzyme for the colorimetric detection of H2O2 and glucose.
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Affiliation(s)
- Linfeng Bai
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Wanquan Jiang
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Min Sang
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Mei Liu
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Shouhu Xuan
- CAS Key Laboratory of Mechanical Behavior and Design of Materials
- Department of Modern Mechanics
- CAS Center for Excellence in Complex System Mechanics
- University of Science and Technology of China
- Hefei
| | - Sheng Wang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials
- Department of Modern Mechanics
- CAS Center for Excellence in Complex System Mechanics
- University of Science and Technology of China
- Hefei
| | - Ken Cham-Fai Leung
- Department of Chemistry
- Partner State Key Laboratory of Biological and Environmental Analysis
- The Hong Kong Baptist University
- Kowloon
- P. R. China
| | - Xinglong Gong
- CAS Key Laboratory of Mechanical Behavior and Design of Materials
- Department of Modern Mechanics
- CAS Center for Excellence in Complex System Mechanics
- University of Science and Technology of China
- Hefei
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36
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Fang Q, Sun Y, Duan J, Bai L, Xu K, Xiong Q, Xu H, Leung KCF, Hui A, Xuan S. ZIF-8 self-etching method for Au/polydopamine hybrid cubic microcapsules with modulated nanostructures. CrystEngComm 2019. [DOI: 10.1039/c9ce01426h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-step strategy combining in situ redox-oxidation polymerization and a ZIF-8 sacrifice template is reported for constructing Au/PDA cubic microcapsules.
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Affiliation(s)
- Qunling Fang
- School of Food and Biological Engineering
- Hefei University of Technology
- Hefei
- PR China
| | - Yuhang Sun
- School of Food and Biological Engineering
- Hefei University of Technology
- Hefei
- PR China
| | - Jinyu Duan
- School of Food and Biological Engineering
- Hefei University of Technology
- Hefei
- PR China
| | - Linfeng Bai
- CAS Key Laboratory of Mechanical Behavior and Design of Materials
- Department of Modern Mechanics
- CAS Center for Excellence in Complex System Mechanics
- University of Science and Technology of China
- Hefei 230027
| | - Kezhu Xu
- School of Food and Biological Engineering
- Hefei University of Technology
- Hefei
- PR China
| | - Qinshan Xiong
- School of Food and Biological Engineering
- Hefei University of Technology
- Hefei
- PR China
| | - Huajian Xu
- School of Food and Biological Engineering
- Hefei University of Technology
- Hefei
- PR China
| | | | - Ailing Hui
- Engineering Research Center of Bio-process, Ministry of Education
- Hefei University of Technology
- Hefei
- China
| | - Shouhu Xuan
- CAS Key Laboratory of Mechanical Behavior and Design of Materials
- Department of Modern Mechanics
- CAS Center for Excellence in Complex System Mechanics
- University of Science and Technology of China
- Hefei 230027
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37
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Shalini Devi KS, Jacob S, Senthil Kumar A. In Situ Structural Elucidation and Selective Pb 2+ Ion Recognition of Polydopamine Film Formed by Controlled Electrochemical Oxidation of Dopamine. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7048-7058. [PMID: 29792028 DOI: 10.1021/acs.langmuir.8b01209] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Owing to the versatility and biocompatibility, a self-polymerized DA (in the presence of air at pH 8.5 tris buffer solution) as a polydopamine (pDA) film has been used for a variety of applications. Indeed, instability under electrified condition (serious surface-fouling) and structural ambiguity of the pDA have been found to be unresolved problems. Previously, pDA films (has hygroscopic and insoluble property) prepared by various controlled chemical oxidation methods have been examined for the structural analysis using ex situ solid-state NMR and mass spectroscopic techniques. In this work, a new in situ approach has been introduced using an electrochemical quartz crystal microbalance (EQCM) technique for the improved structural elucidation of pDA that has been formed by a controlled electrochemical oxidation of DA on a carboxylic acid functionalized multiwalled carbon nanotube-Nafion (cationic perfluoro polymer) modified electrode (f-MWCNT-Nf) system in pH 7 phosphate buffer solution. Key intermediates like 5,6-dihydroxy indole (DHI; 150.7 g mol-1), dopamine (154.1 g mol-1), Na+, PO42-, and polymeric product of high molecular weight, 2475 g mol-1, have been trapped on f-MWCNT-Nf surface via π-π (sp2 carbon of MWCNT and aromatic e-s), covalent (amide-II bonding, minimal), hydrogen, and ionic bonding and identified its molecular weights successfully. The new pDA film system showed well-defined peaks at E°' = 0.25 V and -0.350 vs Ag/AgCl corresponding to the surface-confined dopamine/dopamine quinone and DHI/5,6-indolequinone redox transitions without any surface-fouling complication. As an electroanalytical application of pDA, selective recognition of Pb2+ ion via {(pDA)-hydroquinone-Pb0} complexation with detection limit (signal-to-noise ratio = 3) 840 part-per-trillion has been demonstrated.
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Affiliation(s)
- K S Shalini Devi
- Nano and Bioelectrochemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences , Vellore Institute of Technology , Vellore - 632 014 , India
| | - Sharu Jacob
- Nano and Bioelectrochemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences , Vellore Institute of Technology , Vellore - 632 014 , India
| | - Annamalai Senthil Kumar
- Nano and Bioelectrochemistry Research Laboratory, Department of Chemistry, School of Advanced Sciences , Vellore Institute of Technology , Vellore - 632 014 , India
- Carbon dioxide Research and Green Technology Centre , Vellore Institute of Technology , Vellore - 632 014 , India
- Institute of Biochemical and Biomedical Engineering , National Taipei University of Technology , Taipei 10608 , Taiwan (R.O.C.)
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