1
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Tuff WJ, Hughes RA, Golze SD, Neretina S. Ion Beam Milling as a Symmetry-Breaking Control in the Synthesis of Periodic Arrays of Identically Aligned Bimetallic Janus Nanocrystals. ACS NANO 2023; 17:4050-4061. [PMID: 36799807 DOI: 10.1021/acsnano.3c00149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Bimetallic Janus nanostructures represent a highly functional class of nanomaterials due to important physicochemical properties stemming from the union of two chemically distinct metal segments where each maintains a partially exposed surface. Essential to their synthesis is the incorporation of a symmetry-breaking control that is able to induce the regioselective deposition of a secondary metal onto a preexisting nanostructure even though such depositions are, more often than not, in opposition to the innate tendencies of heterogeneous growth modes. Numerous symmetry-breaking controls have been forwarded but the ensuing Janus structure syntheses have not yet achieved anywhere near the same level of control over nanostructure size, shape, and composition as their core-shell and single-element counterparts. Herein, a collimated ion beam is demonstrated as a symmetry-breaking control that allows for the selective removal of a passivating oxide shell from one side of a metal nanostructure to create a configuration that is transformable into a substrate-bound Au-Ag Janus nanostructure. Two different modalities are demonstrated for achieving Janus structures where in one case the oxide dissolves in the growth solution while in the other it remains affixed to form a three-component system. The devised procedures distinguish themselves in their ability to realize complex Janus architectures arranged in periodic arrays where each structure has the same alignment relative to the underlying substrate. The work, hence, provides an avenue for forming precisely tailored Janus structures and, in a broader sense, advances the use of oxides as an effective means for directing nanometal syntheses.
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Affiliation(s)
- Walker J Tuff
- College of Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Robert A Hughes
- College of Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Spencer D Golze
- College of Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Svetlana Neretina
- College of Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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2
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Wei Z, Price A, Wei K, Luo Q, Thanneeru S, Sun S, He J. Polymer N-Heterocyclic Carbene (NHC) Ligands for Silver Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2022; 14:55227-55237. [PMID: 36459050 DOI: 10.1021/acsami.2c17706] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Polymer N-heterocyclic carbenes (NHCs) are a class of robust surface ligands to provide superior colloidal stability for metal nanoparticles (NPs) under various harsh conditions. We report a general method to prepare polymeric NHCs and demonstrate that these polymer NHC-AgNPs are stable against oxidative etching and show high peroxidase activity. We prepared three imidazolium-terminated poly(methyl methacrylate) (PMMA), polystyrene (PS), and poly(2-(2-methoxyethoxy)ethyl methacrylate) (PMEO2MA) through atom-transfer radical polymerization with an imidazole-containing initiator. The imidazolium end group was further converted to NHC-Ag(I) in the presence of Ag2O at room temperature. Polymer NHC-Ag(I) can transmetalate to AgNPs through ligand exchange at the interface of oil/water within 2 min. All the three polymers can modify metal NPs, such as AgNPs, Ag nanowires, and AuNPs, providing excellent thermal, oxidative, and chemical stabilities for AgNPs. As an example, in the presence of hydrogen peroxide, AgNPs modified by polymer NHCs were resistant against oxidative etching with a rate of ∼700 times slower than those grafted with thiolates. AgNPs modified by polymer NHCs also showed higher peroxidase activity, 4 times more active than those capped by citrate and polyvinylpyrrolidone (PVP) and 2 times more active than those with polymer thiolate. Our studies demonstrate a great potential of using polymer NHCs to stabilize metallic NPs for various applications.
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Affiliation(s)
- Zichao Wei
- Department of Chemistry, University of Connecticut, Storrs, Connecticut06269, United States
| | - Aleisha Price
- Department of Chemistry, University of Connecticut, Storrs, Connecticut06269, United States
| | - Kecheng Wei
- Department of Chemistry, Brown University, Providence, Rhode Island02912, United States
| | - Qiang Luo
- Department of Chemistry, University of Connecticut, Storrs, Connecticut06269, United States
| | - Srinivas Thanneeru
- Department of Chemistry, University of Connecticut, Storrs, Connecticut06269, United States
| | - Shouheng Sun
- Department of Chemistry, Brown University, Providence, Rhode Island02912, United States
| | - Jie He
- Department of Chemistry, University of Connecticut, Storrs, Connecticut06269, United States
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut06269, United States
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3
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Zhang Y, Dong W, Wang Y, Wu Q, Yi C, Yang Y, Xu Y, Nie Z. Synthesis of Patchy Nanoparticles with Symmetry Resembling Polar Small Molecules. SMALL METHODS 2022; 6:e2200545. [PMID: 35869619 DOI: 10.1002/smtd.202200545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/11/2022] [Indexed: 06/15/2023]
Abstract
Patchy nanoparticles (NPs) show many important applications, especially for constructing structurally complex colloidal materials, but existing synthetic strategies generate patchy NPs with limited types of symmetry. This article describes a versatile copolymer ligand-based strategy for the scalable synthesis of uniform Au-(SiO2 )x patchy NPs (x is the patch number and 1 ≤ x ≤ 5) with unusual symmetry at high yield. The hydrolysis and condensation of tetraethyl orthosilicate on block-random copolymer ligands induces the segregation of copolymers on gold NPs (AuNPs) and hence governs the structure and distribution of silica patches formed on the AuNPs. The resulting patchy NPs possess unique configurations where the silica patches are symmetrically arranged at one side of the core NP, resembling the geometry of polar small molecules. The number, size, and morphology of silica patches, as well as the spacing between the patches and the AuNP can be precisely tuned by tailoring copolymer architectures, grafting density of copolymers, and the size of AuNPs. Furthermore, it is demonstrated that the Au-(SiO2 )x patchy NPs can assemble into more complex superstructures through directional interaction between the exposed Au surfaces. This work offers new opportunities of designing next-generation complex patchy NPs for applications in such as biomedicines, self-assembly, and catalysis.
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Affiliation(s)
- Yan Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai, Shanghai, 200438, P. R. China
| | - Wenhao Dong
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai, Shanghai, 200438, P. R. China
| | - Yazi Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai, Shanghai, 200438, P. R. China
| | - Qi Wu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai, Shanghai, 200438, P. R. China
| | - Chenglin Yi
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai, Shanghai, 200438, P. R. China
| | - Yiqun Yang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai, Shanghai, 200438, P. R. China
| | - Yifei Xu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai, Shanghai, 200438, P. R. China
| | - Zhihong Nie
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai, Shanghai, 200438, P. R. China
- Yiwu Research Institute of Fudan University, Yiwu City, Zhejiang, 322000, P. R. China
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4
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Duan H, Malesky T, Wang J, Liu CH, Tan H, Nieh MP, Lin Y, He J. Patchy metal nanoparticles with polymers: controllable growth and two-way self-assembly. NANOSCALE 2022; 14:7364-7371. [PMID: 35535972 DOI: 10.1039/d2nr01221a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We report a new design of polymer-patched gold nanoparticles (AuNPs) with controllable interparticle interactions in terms of their direction and strength. Patchy AuNPs (pAuNPs) are prepared through hydrophobicity-driven surface dewetting under deficient ligand exchange conditions. Using the exposed surface on pAuNPs as seeds, a highly controllable growth of AuNPs is carried out via seed-mediated growth while retaining the size of polymer domains. As guided by ligands, these pAuNPs can self-assemble directionally in two ways along the exposed surface (head-to-head) or the polymer-patched surface of pAuNPs (tail-to-tail). Control of the surface asymmetry/coverage on pAuNPs provides an important tool in balancing interparticle interactions (attraction vs. repulsion) that further tunes assembled nanostructures as clusters and nanochains. The self-assembly pathway plays a key role in determining the interparticle distance and therefore plasmon coupling of pAuNPs. Our results demonstrate a new paradigm in the directional self-assembly of anisotropic building blocks for hierarchical nanomaterials with interesting optical properties.
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Affiliation(s)
- Hanyi Duan
- Polymer Program, University of Connecticut, Storrs, CT 06269, USA.
| | - Tessa Malesky
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | - Janet Wang
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | - Chung-Hao Liu
- Polymer Program, University of Connecticut, Storrs, CT 06269, USA.
| | - Haiyan Tan
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
| | - Mu-Ping Nieh
- Polymer Program, University of Connecticut, Storrs, CT 06269, USA.
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
| | - Yao Lin
- Polymer Program, University of Connecticut, Storrs, CT 06269, USA.
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
| | - Jie He
- Polymer Program, University of Connecticut, Storrs, CT 06269, USA.
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
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5
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Li D, Wang T, Li L, Zhang L, Wang C, Dong X. Designed formation of Prussian Blue/CuS Janus nanostructure with enhanced NIR-I and NIR-II dual window response for tumor thermotherapy. J Colloid Interface Sci 2022; 613:671-680. [DOI: 10.1016/j.jcis.2022.01.074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/28/2021] [Accepted: 01/11/2022] [Indexed: 12/18/2022]
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6
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Qiu J, Nguyen QN, Lyu Z, Wang Q, Xia Y. Bimetallic Janus Nanocrystals: Syntheses and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2102591. [PMID: 34648198 DOI: 10.1002/adma.202102591] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 09/15/2021] [Indexed: 05/28/2023]
Abstract
Bimetallic Janus nanocrystals have received considerable interest in recent years owing to their unique properties and niche applications. The side-by-side distribution of two distinct metals provides a flexible platform for tailoring the optical and catalytic properties of nanocrystals. First, a brief introduction to the structural features of bimetallic Janus nanocrystals, followed by an extensive discussion of the synthetic approaches, is given. The strategies and experimental controls for achieving the Janus structure, as well as the mechanistic understandings, are specifically discussed. Then, a number of intriguing properties and applications enabled by the Janus nanocrystals are highlighted. Finally, this article is concluded with future directions and outlooks with respect to both syntheses and applications of this new class of functional nanomaterials.
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Affiliation(s)
- Jichuan Qiu
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Quynh N Nguyen
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Zhiheng Lyu
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Qiuxiang Wang
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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7
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Cui D, Shi B, Xia Z, Zhu W, Lü C. Construction of polymer brush-decorated amphiphilic Janus graphene oxide nanosheets via a Pickering emulsion template for catalytic applications. NEW J CHEM 2022. [DOI: 10.1039/d2nj03874a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
2D amphiphilic Janus GO nanocatalysts were prepared using Pickering emulsions and grafted polymer brushes, with excellent performance in homogeneous and interfacial catalysis.
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Affiliation(s)
- Donghui Cui
- Institute of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Bingfeng Shi
- Institute of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Zhinan Xia
- Institute of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Wenjing Zhu
- Institute of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Changli Lü
- Institute of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
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8
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Liu Y, Zhao H. Homopolymer-Assisted Fusions of Polymer Brushes and Block Copolymer Vesicles. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yingze Liu
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Tianjin 300071, China
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9
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Feng J, Xu D, Yang F, Chen J, Wu C, Yin Y. Surface Engineering and Controlled Ripening for Seed‐Mediated Growth of Au Islands on Au Nanocrystals. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ji Feng
- Department Department of Chemistry University of California Riverside CA 92521 USA
| | - Dongdong Xu
- School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 China
| | - Fan Yang
- Department Department of Chemistry University of California Riverside CA 92521 USA
| | - Jinxing Chen
- Department Department of Chemistry University of California Riverside CA 92521 USA
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Institute of Functional Nano and Soft Materials (FUNSOM) Soochow University Suzhou 215123 China
| | - Chaolumen Wu
- Department Department of Chemistry University of California Riverside CA 92521 USA
| | - Yadong Yin
- Department Department of Chemistry University of California Riverside CA 92521 USA
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10
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Feng J, Xu D, Yang F, Chen J, Wu C, Yin Y. Surface Engineering and Controlled Ripening for Seed-Mediated Growth of Au Islands on Au Nanocrystals. Angew Chem Int Ed Engl 2021; 60:16958-16964. [PMID: 34077601 DOI: 10.1002/anie.202105856] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/28/2021] [Indexed: 11/07/2022]
Abstract
Engineering the nucleation and growth of plasmonic metals (Ag and Au) on their pre-existing seeds is expected to produce nanostructures with unconventional morphologies and plasmonic properties that may find unique applications in sensing, catalysis, and broadband energy harvesting. Typical seed-mediated growth processes take advantage of the perfect lattice match between the deposited metal and seeds to induce conformal coating, leading to either simple size increases (e.g., Au on Au) or the formation of core-shell structures (e.g., Ag on Au) with limited morphology change. In this work, we show that the introduction of a thin layer of metal with considerable lattice mismatch can effectively induce the nucleation of well-defined Au islands on Au nanocrystal seeds. By controlling the interfacial energy between the seed and the deposited material, the oxidative ripening, and the surface diffusion of metal precursors, we can regulate the number of islands on the seeds and produce complex Au nanostructures with morphologies tunable from core-satellites to tetramers, trimers, and dimers.
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Affiliation(s)
- Ji Feng
- Department Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Dongdong Xu
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Fan Yang
- Department Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Jinxing Chen
- Department Department of Chemistry, University of California, Riverside, CA, 92521, USA.,Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China
| | - Chaolumen Wu
- Department Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Yadong Yin
- Department Department of Chemistry, University of California, Riverside, CA, 92521, USA
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11
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Duan H, Luo Q, Wei Z, Lin Y, He J. Symmetry-Broken Patches on Gold Nanoparticles through Deficient Ligand Exchange. ACS Macro Lett 2021; 10:786-790. [PMID: 35549198 DOI: 10.1021/acsmacrolett.1c00252] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Symmetry-broken nanoparticles (NPs) are important building blocks with directional interparticle interaction as a key to access the precise organization of NPs macroscopically. We report a facile, one-pot synthetic approach to prepare high-quality symmetry-broken plasmonic gold NPs (AuNPs). Symmetry-broken patterning is achieved through deficient ligand exchange of isotropic AuNPs with thiol-terminated polystyrene (PS-SH) in the presence of an amphiphilic polymer surfactant. The concentration of PS-SH plays a dominant role in tuning surface patterning and coverage of AuNPs. The formation of asymmetric surface patches arises from the interplay between the conformational entropy of polymer ligands and the interfacial energy between polymer-grafted AuNPs and the solvent. Our method illustrates new paradises to design asymmetric NPs with directional interparticle interactions to access the precise organization of NPs.
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12
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Zhang X, Fu Q, Duan H, Song J, Yang H. Janus Nanoparticles: From Fabrication to (Bio)Applications. ACS NANO 2021; 15:6147-6191. [PMID: 33739822 DOI: 10.1021/acsnano.1c01146] [Citation(s) in RCA: 97] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Janus nanoparticles (JNPs) refer to the integration of two or more chemically discrepant composites into one structure system. Studies into JNPs have been of significant interest due to their interesting characteristics stemming from their asymmetric structures, which can integrate different functional properties and perform more synergetic functions simultaneously. Herein, we present recent progress of Janus particles, comprehensively detailing fabrication strategies and applications. First, the classification of JNPs is divided into three blocks, consisting of polymeric composites, inorganic composites, and hybrid polymeric/inorganic JNPs composites. Then, the fabrication strategies are alternately summarized, examining self-assembly strategy, phase separation strategy, seed-mediated polymerization, microfluidic preparation strategy, nucleation growth methods, and masking methods. Finally, various intriguing applications of JNPs are presented, including solid surfactants agents, micro/nanomotors, and biomedical applications such as biosensing, controlled drug delivery, bioimaging, cancer therapy, and combined theranostics. Furthermore, challenges and future works in this field are provided.
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Affiliation(s)
- Xuan Zhang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, P.R. China
| | - Qinrui Fu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, P.R. China
| | - Hongwei Duan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457
| | - Jibin Song
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, P.R. China
| | - Huanghao Yang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, P.R. China
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13
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Lv H, Xu D, Sun L, Liu B. Surfactant Design Strategy for One-Pot Seedless Synthesis of Hollow Mesoporous AuAg Alloy Nanospheres. J Phys Chem Lett 2020; 11:5777-5784. [PMID: 32597652 DOI: 10.1021/acs.jpclett.0c01577] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hollow gold (Au)-based nanostructures have recently been developed for various applications. However, current nanosynthesis approaches have not yet successfully been implemented for precisely engineering hollow Au-based nanostructures with uniform and well-defined mesoporous shell frameworks. Here, we develop an easy one-pot seedless strategy for fabricating hollow mesoporous AuAg (h-mesoAuAg) nanospheres by combining the galvanic replacement reaction with the surfactant-templated growth. Thiol-terminated multifunctional C22H45N+(CH3)2-C3H6-SH (Cl-) (C22N-SH) as the functional surfactant is the key that facilitates the formation of covalently stable C22N-S-Au(I) and C22N-S-Ag(I) intermediates. Such intermediates template in situ growth of mesoAuAg shell on initially nucleated Ag-rich seeds through the galvanic replacement reaction. Hierarchically hollow/mesoporous nanostructures and corresponding optical responses of h-mesoAuAg are also precisely engineered by tailoring synthetic parameters. With structural and compositional advantages, h-mesoAuAg nanospheres exhibit promising electrochemical performances toward methanol oxidation reaction and nonenzymatic glucose sensor.
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Affiliation(s)
- Hao Lv
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Dongdong Xu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Lizhi Sun
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Ben Liu
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
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14
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Hou W, Liu Y, Zhao H. Surface Nanostructures Based on Assemblies of Polymer Brushes. Chempluschem 2020; 85:998-1007. [DOI: 10.1002/cplu.202000112] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 04/20/2020] [Indexed: 01/03/2023]
Affiliation(s)
- Wangmeng Hou
- Key Laboratory of Functional Polymer Materials Ministry of Education College of ChemistryNankai University Tianjin 300071 P. R. China
| | - Yingze Liu
- Key Laboratory of Functional Polymer Materials Ministry of Education College of ChemistryNankai University Tianjin 300071 P. R. China
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials Ministry of Education College of ChemistryNankai University Tianjin 300071 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300071 P. R. China
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15
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Yang C, Tao X, Yang Y, Liu K. Patterning of polyoxometalate rings on gold nanorods. Chem Commun (Camb) 2020; 56:1677-1680. [PMID: 31939455 DOI: 10.1039/c9cc06968b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a facile method for the self-assembly of various polyoxometalates (POMs) on cetyltriethylammonium bromide-covered gold nanorods (GNRs) into an ordered array of POM rings along their long axis. The periodic distance of POM rings can be tuned by the POM charge and the transverse curvature of GNRs.
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Affiliation(s)
- Chenggong Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
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16
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Yi C, Yang Y, Liu B, He J, Nie Z. Polymer-guided assembly of inorganic nanoparticles. Chem Soc Rev 2019; 49:465-508. [PMID: 31845685 DOI: 10.1039/c9cs00725c] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The self-assembly of inorganic nanoparticles is of great importance in realizing their enormous potentials for broad applications due to the advanced collective properties of nanoparticle ensembles. Various molecular ligands (e.g., small molecules, DNAs, proteins, and polymers) have been used to assist the organization of inorganic nanoparticles into functional structures at different hierarchical levels. Among others, polymers are particularly attractive for use in nanoparticle assembly, because of the complex architectures and rich functionalities of assembled structures enabled by polymers. Polymer-guided assembly of nanoparticles has emerged as a powerful route to fabricate functional materials with desired mechanical, optical, electronic or magnetic properties for a broad range of applications such as sensing, nanomedicine, catalysis, energy storage/conversion, data storage, electronics and photonics. In this review article, we summarize recent advances in the polymer-guided self-assembly of inorganic nanoparticles in both bulk thin films and solution, with an emphasis on the role of polymers in the assembly process and functions of resulting nanostructures. Precise control over the location/arrangement, interparticle interaction, and packing of inorganic nanoparticles at various scales are highlighted.
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Affiliation(s)
- Chenglin Yi
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
| | - Yiqun Yang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
| | - Ben Liu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu 210023, China and Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06268, USA.
| | - Jie He
- Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06268, USA.
| | - Zhihong Nie
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
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17
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Zhang L, Wei Z, Thanneeru S, Meng M, Kruzyk M, Ung G, Liu B, He J. A Polymer Solution To Prevent Nanoclustering and Improve the Selectivity of Metal Nanoparticles for Electrocatalytic CO
2
Reduction. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909069] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Lei Zhang
- Jiangsu Key Laboratory of New Power Batteries Collaborative Innovation Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 China
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Zichao Wei
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | | | - Michael Meng
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Megan Kruzyk
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Gaël Ung
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Ben Liu
- Jiangsu Key Laboratory of New Power Batteries Collaborative Innovation Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 China
| | - Jie He
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
- Polymer Program Institute of Materials Science University of Connecticut Storrs CT 06269 USA
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18
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Zhang L, Wei Z, Thanneeru S, Meng M, Kruzyk M, Ung G, Liu B, He J. A Polymer Solution To Prevent Nanoclustering and Improve the Selectivity of Metal Nanoparticles for Electrocatalytic CO 2 Reduction. Angew Chem Int Ed Engl 2019; 58:15834-15840. [PMID: 31468668 DOI: 10.1002/anie.201909069] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Indexed: 01/26/2023]
Abstract
The stability of metal nanocatalysts for electrocatalytic CO2 reduction is of key importance for practical application. We report the use of two polymeric N-heterocyclic carbenes (NHC) (polydentate and monodentate) to stabilize metal nanocatalysts (Au and Pd) for efficient CO2 electroreduction. Compared with other conventional ligands including thiols and amines, metal-carbene bonds that are stable under reductive potentials prevent the nanoclustering of nanoparticles. Au nanocatalysts modified by polymeric NHC ligands show an activity retention of 86 % after CO2 reduction at -0.9 V for 11 h, while it is less than 10 % for unmodified Au. We demonstrate that the hydrophobicity of polymer ligands and the enriched surface electron density of metal NPs through σ-donation of NHCs substantially improve the selectivity for CO2 reduction over proton.
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Affiliation(s)
- Lei Zhang
- Jiangsu Key Laboratory of New Power Batteries, Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.,Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
| | - Zichao Wei
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
| | - Srinivas Thanneeru
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
| | - Michael Meng
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
| | - Megan Kruzyk
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
| | - Gaël Ung
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
| | - Ben Liu
- Jiangsu Key Laboratory of New Power Batteries, Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Jie He
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA.,Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
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19
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Qiu J, Xie M, Lyu Z, Gilroy KD, Liu H, Xia Y. General Approach to the Synthesis of Heterodimers of Metal Nanoparticles through Site-Selected Protection and Growth. NANO LETTERS 2019; 19:6703-6708. [PMID: 31449753 DOI: 10.1021/acs.nanolett.9b03167] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Heterodimers of metal nanoparticles are widely sought for applications in photonics, sensing, and catalysis. In this work, we demonstrate a general approach to the fabrication of heterodimers of metal nanoparticles by leveraging the concept of site-selected growth under the protection of an inert material. When styrene is polymerized in the presence of Au nanoparticles, the resultant polystyrene (PS) can be controlled to grow from only one portion of the surface of a nanoparticle. Free of PS, the remaining portion can serve as an active site for the heterogeneous nucleation and growth of the second metal. After dissolving the PS component, we obtain heterodimers of metal nanoparticles with tunable elemental compositions and controllable physical dimensions. The contact area between the two metals can also be maneuvered by adjusting the concentration of divinylbenzene used for copolymerization with styrene. Using this method, we have prepared Au-Ag, Au-Pd, and Au-Pt heterodimers and further investigated their plasmonic properties. The capability of this approach should be extendible to the fabrication of heterodimers with a broader range of compositions and properties.
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Affiliation(s)
- Jichuan Qiu
- The Wallace H. Coulter Department of Biomedical Engineering , Georgia Institute of Technology and Emory University , Atlanta , Georgia 30332 , United States
- State Key Laboratory of Crystal Materials , Shandong University , Jinan , Shandong 250100 , P. R. China
| | - Minghao Xie
- School of Chemistry and Biochemistry , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Zhiheng Lyu
- School of Chemistry and Biochemistry , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Kyle D Gilroy
- The Wallace H. Coulter Department of Biomedical Engineering , Georgia Institute of Technology and Emory University , Atlanta , Georgia 30332 , United States
| | - Hong Liu
- State Key Laboratory of Crystal Materials , Shandong University , Jinan , Shandong 250100 , P. R. China
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering , Georgia Institute of Technology and Emory University , Atlanta , Georgia 30332 , United States
- School of Chemistry and Biochemistry , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
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20
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Lv H, Chen X, Fu C, She P, Xu D, Liu B. “Dual-Template”-Directed Synthesis of Bowl-Shaped Mesoporous Platinum Nanostructures. Inorg Chem 2019; 58:11195-11201. [DOI: 10.1021/acs.inorgchem.9b01794] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Hao Lv
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xin Chen
- ME Genomics Inc., Software Industry Base, Shenzhen 518000, China
| | - Cheng Fu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Peiliang She
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Dongdong Xu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Ben Liu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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21
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Lv H, Xu D, Sun L, Henzie J, Lopes A, Gu Q, Yamauchi Y, Liu B. Asymmetric Multimetallic Mesoporous Nanospheres. NANO LETTERS 2019; 19:3379-3385. [PMID: 30974058 DOI: 10.1021/acs.nanolett.9b01223] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Mesoporous colloidal nanospheres with tailorable asymmetric nanostructures and multimetallic elemental compositions are building blocks in next-generation heterogeneous catalysts. Introducing structural asymmetry into metallic mesoporous frameworks has never been demonstrated, but it would be beneficial because the asymmetry enables the spatial control of catalytic interfaces, facilitates the electron/mass transfer and assists in the removal of poisonous intermediates. Herein, we describe a simple bottom-up strategy to generate uniform sub-100 nm multimetallic asymmetric bowl-shaped mesoporous nanospheres (BMSs). This method uses a surfactant-directed "dual"-template to control the kinetics of metal reduction on the surface of a vesicle, forming mesoporous metal islands on its surface whose spherical cone angle can be precisely controlled. The asymmetric BMS mesostructures with different spherical cone angles (structural asymmetries) and elemental compositions are demonstrated. The high surface area and asymmetric nature of the metal surfaces are shown to enhance catalytic performance in the alcohol oxidation reactions. The findings described here offer novel and interesting opportunities for rational design and synthesis of hierarchically asymmetric nanostructures with desired functions for a wide range of applications.
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Affiliation(s)
- Hao Lv
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Dongdong Xu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Lizhi Sun
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Joel Henzie
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , China
- International Center for Materials Nanoarchitectonics (WPI-MANA) , National Institute for Materials Science (NIMS) , 1-1 Namiki , Tsukuba , Ibaraki 305-0044 , Japan
| | - Aaron Lopes
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Qingyu Gu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Yusuke Yamauchi
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , China
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN) , The University of Queensland , Brisbane , QLD 4072 , Australia
- Department of Plant and Environmental New Resources , Kyung Hee University , 1732 Deogyeong-daero , Giheung-gu, Yongin-si , Gyeonggi-do 446-701 , South Korea
| | - Ben Liu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
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22
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Abstract
Multicomponent nanoparticles (MCNs) composed of disparate inorganic colloidal components have attracted great attention from researchers in both the academic and industrial community, because of their unique properties and diverse applications in energy conversion and storage; heterogeneous catalysis; optics and electronics; and biomedical imaging, diagnosis, and therapy. Compared with single-component nanoparticles (NPs), new or advanced properties of MCNs arise from the synergistic effect between their constituent components and the presence of nanoscale interfaces between distinct materials within the particles. Consequently, the spatial arrangement of nanoscale domains of MCNs becomes equally important in property or function control of MCNs as their size, shape, and composition, if not more. In particular, compositionally asymmetric MCNs may outperform their symmetric counterparts in many of their applications. To this end, the seed-mediated growth (SMG) method, which involves depositing a second material onto seed NPs, has been considered as the most common strategy for the synthesis of asymmetric MCNs with desired complexity. In this approach, the control of symmetry breaking during MCN growth is usually achieved by manipulating the growth kinetics or using seed NPs with asymmetric shapes or surfaces. Although great progress has been made in the past decade, there remains a challenge to control the shape, orientation and organization of colloidal components of MCNs with a high yield and reproducibility. Recently, several unconventional methods have been developed as an important addition to the synthetic toolbox for the production of complex MCNs that otherwise may not be readily attainable. This Account summarizes recent advancements on the development of unconventional synthetic strategies for breaking the growth symmetry in the synthesis of asymmetric MCNs. We start with a brief discussion of the achievements and limitations of the conventional strategies for symmetry breaking synthesis. In the subsequent section, we present three unconventional approaches toward symmetry-breaking synthesis of asymmetric MCNs, namely, surface-protected growth, interface-guided growth, and welding-induced synthesis. First, we discuss how commonly used soft agents (e.g., collapsed polymer) and hard agents (e.g., silica) can be asymmetrically coated on seed NPs to template the asymmetric growth of secondary material, generating a broad range of MCNs with complex architectures. The unique features and key factors of this surface-protected synthesis are discussed from the viewpoints of the surface chemistry of seed NPs. We further discuss the use of a solid/liquid or liquid/liquid interface to guide the synthesis of Janus or more complex MCNs through two general mechanisms; that is, selective blocking or impeding the access of precursors to one side of seed NPs and interfacial reaction-enabled generation of asymmetric seeds for further growth. Finally, we discuss a symmetry-breaking method beyond the SMG mechanism, directed welding of as-synthesized single-component NPs. Moreover, we discuss how the unique structural symmetry and compositional arrangement of these MCNs significantly alter the physical and chemical properties of MCNs, thus facilitating their performance in exemplary applications of photocatalysis and electrocatalysis. We finally conclude this Account with a summary of recent progress and our future perspective on the future challenges.
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Affiliation(s)
- Zhiqi Huang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Zhihong Nie
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P.R. China
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23
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Xue D, Meng QB, Song XM. Magnetic-Responsive Janus Nanosheets with Catalytic Properties. ACS APPLIED MATERIALS & INTERFACES 2019; 11:10967-10974. [PMID: 30793582 DOI: 10.1021/acsami.8b21012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this article, we describe a method to fabricate magnetic-responsive Janus nanosheets with catalytic properties via the surface protection method. Fe3O4 nanoparticles and PW12O403--based ionic liquid are located on the two opposite sides of the Janus nanosheets, respectively. The Janus nanosheets are characterized by Fourier transform infrared, scanning electron microscopy, transmission electron microscopy, atomic force microscopy, and ζ-potential analyses. They are used as recyclable catalysts to the esterification reaction of methanol and oleic acid for their magnetic-responsive and catalytic properties. The esterification ratio is up to 80% and there is nearly no change when Fe3O4 nanoparticles/PW12O403--based ionic liquid composite nanosheets were recycled four times.
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Affiliation(s)
- Dan Xue
- Liaoning Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, College of Chemistry , Liaoning University , Shenyang 110036 , China
| | - Qing Bo Meng
- Liaoning Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, College of Chemistry , Liaoning University , Shenyang 110036 , China
| | - Xi-Ming Song
- Liaoning Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, College of Chemistry , Liaoning University , Shenyang 110036 , China
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24
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Rossner C, Letofsky-Papst I, Fery A, Lederer A, Kothleitner G. Thermoreversible Surface Polymer Patches: A Cryogenic Transmission Electron Microscopy Investigation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:8622-8628. [PMID: 29958497 DOI: 10.1021/acs.langmuir.8b01742] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hybrid core-shell type nanoparticles from gold nanoparticle cores and poly( N-isopropylacrylamide) shells were investigated with regard to their structural plasticity. Reversible addition-fragmentation chain transfer polymerization was used to synthesize well-defined polymers that can be readily anchored onto the gold nanoparticle surface. The polymer shell morphologies were directly visualized in their native solution state at high resolution by cryogenic transmission electron microscopy, and the microscopic results were further corroborated by dynamic light scattering. Different environmental conditions and brush architectures are covered by our experiments, which leads to distinct thermally induced responses. These responses include constrained dewetting of the nanoparticle surface at temperatures above the lower critical solution temperature of poly( N-isopropylacrylamide), leading to surface polymer patches. This effect provides a novel approach toward breaking the symmetry of nanoparticle interactions, and we show first evidence for its impact on the formation of colloidal superstructures.
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Affiliation(s)
| | | | - Andreas Fery
- Cluster of Excellence Centre for Advancing Electronics Dresden (cfaed) , Technische Universität Dresden , D-01062 Dresden , Germany
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25
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Liu B, Louis M, Jin L, Li G, He J. Co‐Template Directed Synthesis of Gold Nanoparticles in Mesoporous Titanium Dioxide. Chemistry 2018; 24:9651-9657. [DOI: 10.1002/chem.201801223] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Ben Liu
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
- Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 P. R. China
| | - Michael Louis
- Department of Chemistry University of New Hampshire Durham NH 03824 USA
| | - Lei Jin
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
| | - Gonghu Li
- Department of Chemistry University of New Hampshire Durham NH 03824 USA
| | - Jie He
- Department of Chemistry University of Connecticut Storrs CT 06269 USA
- Institute of Materials Science University of Connecticut Storrs CT 06269 USA
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