1
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Levi A, Hou B, Alon O, Ossia Y, Verbitsky L, Remennik S, Rabani E, Banin U. The Effect of Monomer Size on Fusion and Coupling in Colloidal Quantum Dot Molecules. NANO LETTERS 2023; 23:11307-11313. [PMID: 38047748 PMCID: PMC11145643 DOI: 10.1021/acs.nanolett.3c03903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/24/2023] [Accepted: 11/29/2023] [Indexed: 12/05/2023]
Abstract
The fusion step in the formation of colloidal quantum dot molecules, constructed from two core/shell quantum dots, dictates the coupling strength and hence their properties and enriched functionalities compared to monomers. Herein, studying the monomer size effect on fusion and coupling, we observe a linear relation of the fusion temperature with the inverse nanocrystal radius. This trend, similar to that in nanocrystal melting, emphasizes the role of the surface energy. The suggested fusion mechanism involves intraparticle ripening where atoms diffuse to the reactive connecting neck region. Moreover, the effect of monomer size and neck filling on the degree of electronic coupling is studied by combined atomistic-pseudopotential calculations and optical measurements, uncovering strong coupling effects in small QD dimers, leading to significant optical changes. Understanding and controlling the fusion and hence coupling effect allows tailoring the optical properties of these nanoscale structures, with potential applications in photonic and quantum technologies.
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Affiliation(s)
- Adar Levi
- Institute
of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Safra Campus, Givat Ram, Jerusalem 91904, Israel
| | - Bokang Hou
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Omer Alon
- Institute
of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Safra Campus, Givat Ram, Jerusalem 91904, Israel
| | - Yonatan Ossia
- Institute
of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Safra Campus, Givat Ram, Jerusalem 91904, Israel
| | - Lior Verbitsky
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Sergei Remennik
- The
Center for Nanoscience & Nanotechnology, The Hebrew University of Jerusalem,
Edmond J. Safra Campus, Jerusalem 9190401, Israel
| | - Eran Rabani
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- The
Raymond and Beverly Sackler Center of Computational Molecular and
Materials Science, Tel Aviv University, Tel Aviv 69978, Israel
| | - Uri Banin
- Institute
of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Safra Campus, Givat Ram, Jerusalem 91904, Israel
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2
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Ye M, Song L, Ye Y, Deng Z. Assembly and Healing: Capacitive and Conductive Plasmonic Interfacing via a Unified and Clean Wet Chemistry Route. J Am Chem Soc 2023; 145:25653-25663. [PMID: 37963330 DOI: 10.1021/jacs.3c07879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Solution-based nanoparticle assembly represents a highly promising way to build functional metastructures based on a wealth of synthetic nanomaterial building blocks with well-controlled morphology and crystallinity. In particular, the involvement of DNA molecular programming in these bottom-up processes gradually helps the ambitious goal of customizable chemical nanofabrication. However, a fundamental challenge is to realize strong interunit coupling in an assembly toward emerging functions and applications. Herein, we present a unified and clean strategy to address this critical issue based on a H2O2-redox-driven "assembly and healing" process. This facile solution route is able to realize both capacitively coupled and conductively bridged colloidal boundaries, simply switchable by the reaction temperature, toward bottom-up nanoplasmonic engineering. In particular, such a "green" process does not cause surface contamination of nanoparticles by exogenous active metal ions or strongly passivating ligands, which, if it occurs, could obscure the intrinsic properties of as-formed structures. Accordingly, previously raised questions regarding the activities of strongly coupled plasmonic structures are clarified. The reported process is adaptable to DNA nanotechnology, offering molecular programmability of interparticle charge conductance. This work represents a new generation of methods to make strongly coupled nanoassemblies, offering great opportunities for functional colloidal technology and even metal self-healing.
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Affiliation(s)
- Meiyun Ye
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Lei Song
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yichen Ye
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhaoxiang Deng
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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3
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Nguyen QN, Wang C, Shang Y, Janssen A, Xia Y. Colloidal Synthesis of Metal Nanocrystals: From Asymmetrical Growth to Symmetry Breaking. Chem Rev 2022; 123:3693-3760. [PMID: 36547384 DOI: 10.1021/acs.chemrev.2c00468] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Nanocrystals offer a unique platform for tailoring the physicochemical properties of solid materials to enhance their performances in various applications. While most work on controlling their shapes revolves around symmetrical growth, the introduction of asymmetrical growth and thus symmetry breaking has also emerged as a powerful route to enrich metal nanocrystals with new shapes and complex morphologies as well as unprecedented properties and functionalities. The success of this route critically relies on our ability to lift the confinement on symmetry by the underlying unit cell of the crystal structure and/or the initial seed in a systematic manner. This Review aims to provide an account of recent progress in understanding and controlling asymmetrical growth and symmetry breaking in a colloidal synthesis of noble-metal nanocrystals. With a touch on both the nucleation and growth steps, we discuss a number of methods capable of generating seeds with diverse symmetry while achieving asymmetrical growth for mono-, bi-, and multimetallic systems. We then showcase a variety of symmetry-broken nanocrystals that have been reported, together with insights into their growth mechanisms. We also highlight their properties and applications and conclude with perspectives on future directions in developing this class of nanomaterials. It is hoped that the concepts and existing challenges outlined in this Review will drive further research into understanding and controlling the symmetry breaking process.
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Affiliation(s)
- Quynh N. Nguyen
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States
| | - Chenxiao Wang
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States
| | - Yuxin Shang
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States
| | - Annemieke Janssen
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States
| | - Younan Xia
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia30332, United States
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4
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Mubarak S, Dhamodharan D, Ghoderao PN, Byun HS. A systematic review on recent advances of metal–organic frameworks-based nanomaterials for electrochemical energy storage and conversion. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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5
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Shiba S, Koike A, Takahashi S, Kato D, Kamata T, Niwa O. Vertically Oriented Metallic Heterodimer Array Semiembedded in Flat Conductive Carbon Film for Electrochemical Application. ACS NANO 2022; 16:10589-10599. [PMID: 35758937 DOI: 10.1021/acsnano.2c02157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
General synthesis of a highly oriented metallic heterodimer array based on a selective electrodeposition technique onto a metal nanoparticle-embedded carbon film is proposed, which enables the preparation of heterodimers with a wide variety of metal combinations. This method requires no surfactant, capping agent, organic solvent, or heat treatment. As a representative metal combination, a nickel (Ni)/palladium (Pd) heterodimer array was prepared by selective electrodeposition of Ni nanoparticles (Ni NPs) on top of partially exposed Pd NPs embedded in carbon film electrodes fabricated by a cosputtering technique. Such a selective electrodeposition becomes possible by utilizing the difference in electrodeposition overpotentials between carbon and Pd NP surfaces. X-ray photoelectron spectroscopy revealed a charge transfer from Ni NPs to Pd NPs, implying that the catalytic and optical properties can be expected to be controllable. The formed heterodimer array structure was mechanically stable against ultrasonication in ethanol for over 1 h because most parts of the Pd NPs were tightly embedded in the carbon film. After conversion from Ni to nickel hydroxide (Ni(OH)2), the electrode showed high electrocatalytic activity toward glucose oxidation, with a higher turnover rate and lower overpotential compared to Ni(OH)2 electrodeposited on pure carbon film electrodes.
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Affiliation(s)
- Shunsuke Shiba
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, Bunkyo-cho 3, Matsuyama, Ehime 790-8577, Japan
| | - Ayaka Koike
- Department of Life Science and Green Chemistry, Faculty of Engineering, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama 369-0293, Japan
| | - Shota Takahashi
- Department of Life Science and Green Chemistry, Faculty of Engineering, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama 369-0293, Japan
| | - Dai Kato
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
| | - Tomoyuki Kamata
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
| | - Osamu Niwa
- Advanced Science Research Laboratory, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama 369-0293, Japan
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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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Cassidy J, Yang M, Harankahage D, Porotnikov D, Moroz P, Razgoniaeva N, Ellison C, Bettinger J, Ehsan S, Sanchez J, Madry J, Khon D, Zamkov M. Tuning the Dimensionality of Excitons in Colloidal Quantum Dot Molecules. NANO LETTERS 2021; 21:7339-7346. [PMID: 34450018 DOI: 10.1021/acs.nanolett.1c02540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Electrically coupled quantum dots (QDs) can support unique optoelectronic properties arising from the superposition of single-particle excited states. Experimental methods for integrating colloidal QDs within the same nano-object, however, have remained elusive to the rational design. Here, we demonstrate a chemical strategy that allows for the assembling of colloidal QDs into coupled composites, where proximal interactions give rise to unique optoelectronic behavior. The assembly method employing "adhesive" surfactants was used to fabricate both homogeneous (e.g., CdS-CdS, PbS-PbS, CdSe-CdSe) and heterogeneous (e.g., PbS-CdS, CdS-CdSe) nanoparticle assemblies, exhibiting quasi-one-dimensional exciton fine structure. In addition, tunable mixing of single-particle exciton states was achieved for dimer-like assemblies of CdSe/CdS core-shell nanocrystals. The nanoparticle assembly mechanism was explained within the viscoelastic interaction theory adapted for molten-surface colloids. We expect that the present work will provide the synthetic and theoretical foundation needed for building assemblies of many inorganic nanocrystals.
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Affiliation(s)
- James Cassidy
- The Center for Photochemical Sciences and Department of Physics, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Mingrui Yang
- The Center for Photochemical Sciences and Department of Physics, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Dulanjan Harankahage
- The Center for Photochemical Sciences and Department of Physics, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Dmitry Porotnikov
- The Center for Photochemical Sciences and Department of Physics, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Pavel Moroz
- The Center for Photochemical Sciences and Department of Physics, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Natalia Razgoniaeva
- The Center for Photochemical Sciences and Department of Physics, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Cole Ellison
- The Center for Photochemical Sciences and Department of Physics, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Jacob Bettinger
- The Center for Photochemical Sciences and Department of Physics, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Shafqat Ehsan
- Department of Chemistry and Biochemistry, St. Mary's University, San Antonio, Texas 78228, United States
| | - John Sanchez
- Department of Chemistry and Biochemistry, St. Mary's University, San Antonio, Texas 78228, United States
| | - Jessica Madry
- Texas A&M University College of Medicine, Bryan, Texas 77807, United States
| | - Dmitriy Khon
- Department of Chemistry and Biochemistry, St. Mary's University, San Antonio, Texas 78228, United States
| | - Mikhail Zamkov
- The Center for Photochemical Sciences and Department of Physics, Bowling Green State University, Bowling Green, Ohio 43403, United States
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8
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Abstract
![]()
Electronic
coupling and hence hybridization of atoms serves as
the basis for the rich properties for the endless library of naturally
occurring molecules. Colloidal quantum dots (CQDs) manifesting quantum
strong confinement possess atomic-like characteristics with s and p electronic levels, which popularized
the notion of CQDs as artificial atoms. Continuing this analogy, when
two atoms are close enough to form a molecule so that their orbitals
start overlapping, the orbitals energies start to split into bonding
and antibonding states made out of hybridized orbitals. The same concept
is also applicable for two fused core–shell nanocrystals in
close proximity. Their band edge states, which dictate the emitted
photon energy, start to hybridize, changing their electronic and optical
properties. Thus, an exciting direction of “artificial molecules”
emerges, leading to a multitude of possibilities for creating a library
of new hybrid nanostructures with novel optoelectronic properties
with relevance toward diverse applications including quantum technologies. The controlled separation and the barrier height between two adjacent
quantum dots are key variables for dictating the magnitude of the
coupling energy of the confined wave functions. In the past, coupled
double quantum dot architectures prepared by molecular beam epitaxy
revealed a coupling energy of few millielectron volts, which limits
the applications to mostly cryogenic operation. The realization of
artificial quantum molecules with sufficient coupling energy detectable
at room temperature calls for the use of colloidal semiconductor nanocrystal
building blocks. Moreover, the tunable surface chemistry widely opens
the predesigned attachment strategies as well as the solution processing
ability of the prepared artificial molecules, making the colloidal
nanocrystals as an ideal candidate for this purpose. Despite several
approaches that demonstrated enabling of the coupled structures, a
general and reproducible method applicable to a broad range of colloidal
quantum materials is needed for systematic tailoring of the coupling
strength based on a dictated barrier This Account addresses
the development of nanocrystal chemistry to create
coupled colloidal quantum dot molecules and to study the
controlled electronic coupling and their emergent properties. The
simplest nanocrystal molecule, a homodimer formed from two core/shell
nanocrystal monomers, in analogy to homonuclear diatomic molecules,
serves as a model system. The shell material of the two CQDs is structurally
fused, resulting in a continuous crystal. This lowers the potential
energy barrier, enabling the hybridization of the electronic wave
functions. The direct manifestation of the hybridization reflects
on the band edge transition shifting toward lower energy and is clearly
resolved at room temperature. The hybridization energy within the
single homodimer molecule is strongly correlated with the extent of
structural continuity, the delocalization of the exciton wave function,
and the barrier thickness as calculated numerically. The hybridization
impacts the emitted photon statistics manifesting faster radiative
decay rate, photon bunching effect, and modified Auger recombination
pathway compared to the monomer artificial atoms. Future perspectives
for the nanocrystals chemistry paradigm are also highlighted.
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Affiliation(s)
- Somnath Koley
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Jiabin Cui
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Yossef E. Panfil
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Uri Banin
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
- The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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9
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Han F, Wang R, Chen B, Feng Y, Liu H, Wang S, Su D, Zhang H, Chen H. Precise Dimerization of Hollow Fullerene Compartments. J Am Chem Soc 2020; 142:15396-15402. [PMID: 32803975 DOI: 10.1021/jacs.0c06190] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Controlled docking, merging, and welding of hollow structures at the nanoscale are essential in constructing sophisticated hollow systems in ways similar to plumbing and biosystems. To this end, regioselectivity is an important milestone demanding new tools. We bring the steric effect, a powerful regioselective method in organic reactions, to the nanoscale. By tuning the exposed liquid area of Janus nanobowls, the sterics of the merging m-xylene liquid template can be precisely modulated, giving high-purity dimers (93.6%) and tetramers (80.6%) in one step. The shape uniformity of the nanobowls, the precise percentage of the exposed liquid, and, most importantly, the error correction in merging liquid domains are the critical factors leading to the precise regioselectivity. We believe that the development of a new regioselective tool and the understanding in docking and welding hollow structures would expand the horizon of nanoscience, opening new possibilities for designing sophisticated nanosystems.
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Affiliation(s)
- Fei Han
- Institute of Advanced Synthesis and School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.,Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, China
| | - Ruoxu Wang
- Institute of Advanced Synthesis and School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Bo Chen
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Yuhua Feng
- Institute of Advanced Synthesis and School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Huanzhi Liu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Shaoyan Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Dongmeng Su
- Institute of Advanced Synthesis and School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Hua Zhang
- Department of Chemistry, City University of Hong Kong, Hong Kong, China.,Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
| | - Hongyu Chen
- Institute of Advanced Synthesis and School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
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10
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Li Y, Deng Z. Ag Ion Soldering: An Emerging Tool for Sub-nanomeric Plasmon Coupling and Beyond. Acc Chem Res 2019; 52:3442-3454. [PMID: 31742388 DOI: 10.1021/acs.accounts.9b00463] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Self-assembly represents probably the most flexible way to construct metastructured materials and devices from a wealth of colloidal building blocks with synthetically controllable sizes, shapes, and elemental compositions. In principle, surface capping is unavoidable during the synthesis of nanomaterials with well-defined geometry and stability. The ligand layer also endows inorganic building blocks with molecular recognition ability responsible for their assembly into desired structures. In the case of plasmonic nanounits, precise positioning of them in a nanomolecule or an ordered nanoarray provides a chance to shape their electrodynamic behaviors and thereby assists experimental demonstration of modern nanoplasmonics toward practical uses. Despite previous achievements in bottom-up nanofabrication, a big challenge exists toward strong coupling and facile charge transfer between adjacent nanounits in an assembly. This difficulty has impeded a functional development of plasmonic nanoassemblies. The weakened interparticle coupling originates from the electrostatic and steric barriers of ionic/molecular adsorbates to guarantee a good colloidal stability. Such a dilemma is rooted in fundamental colloidal science, which lacks an effective solution. During the past several years, a chemical tool termed Ag ion soldering (AIS) has been developed to overcome the above situation toward functional colloidal nanotechnology. In particular, a dimeric assembly of plasmonic nanoparticles has been taken as an ideal model to study plasmonic coupling and interparticle charge transfer. This Account starts with a demonstration of the chemical mechanism of AIS, followed by a verification of its workability in various self-assembly systems. A further use of AIS to realize postsynthetic coupling of DNA-directed nanoparticle clusters evidences its compatibility with DNA nanotechnology. Benefiting from the sub-nanometer interparticle gap achieved by AIS, a conductive pathway is established between two nanoparticles in an assembly. Accordingly, light-driven charge transfer between the conductively bridged plasmonic units is realized with highly tunable resonance frequencies. These situations have been demonstrated by thermal/photothermal sintering of silica-isolated nanoparticle dimers as well as gap-specific electroless gold/silver deposition. The regioselective silver deposition is then combined with galvanic replacement to obtain catalytically active nanofoci (plasmonic nanogaps). The resulting structures are useful for real time and on-site Raman spectroscopic tracking of chemical reactions in the plasmonic hotspots (nanogaps) as well as for study of plasmon-mediated/field-enhanced catalysis. The Account is concluded by a deeper insight into the chemical mechanism of AIS and its adaption to conformation-rich structures. Finally, AIS-enabled functional pursuits are suggested for self-assembled materials with strongly coupled and easily reshapable physicochemical properties.
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Affiliation(s)
- Yulin Li
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhaoxiang Deng
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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11
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Colloidal quantum dot molecules manifesting quantum coupling at room temperature. Nat Commun 2019; 10:5401. [PMID: 31844043 PMCID: PMC6915722 DOI: 10.1038/s41467-019-13349-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 10/30/2019] [Indexed: 11/23/2022] Open
Abstract
Coupling of atoms is the basis of chemistry, yielding the beauty and richness of molecules. We utilize semiconductor nanocrystals as artificial atoms to form nanocrystal molecules that are structurally and electronically coupled. CdSe/CdS core/shell nanocrystals are linked to form dimers which are then fused via constrained oriented attachment. The possible nanocrystal facets in which such fusion takes place are analyzed with atomic resolution revealing the distribution of possible crystal fusion scenarios. Coherent coupling and wave-function hybridization are manifested by a redshift of the band gap, in agreement with quantum mechanical simulations. Single nanoparticle spectroscopy unravels the attributes of coupled nanocrystal dimers related to the unique combination of quantum mechanical tunneling and energy transfer mechanisms. This sets the stage for nanocrystal chemistry to yield a diverse selection of coupled nanocrystal molecules constructed from controlled core/shell nanocrystal building blocks. These are of direct relevance for numerous applications in displays, sensing, biological tagging and emerging quantum technologies. In analogy to the coupling of atoms into molecules, the authors fuse colloidal semiconductor nanocrystals into quantum dot dimers. These nanocrystal ‘molecules’ exhibit significant quantum coupling effects, making them promising for applications in devices and potential quantum technologies.
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12
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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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13
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Wang Y, Fang L, Gong M, Deng Z. Chemically modified nanofoci unifying plasmonics and catalysis. Chem Sci 2019; 10:5929-5934. [PMID: 31360398 PMCID: PMC6582755 DOI: 10.1039/c9sc00403c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/03/2019] [Indexed: 12/20/2022] Open
Abstract
Chemical modifiability is achieved for self-assembled plasmonic nanogaps to enable charge transfer plasmon resonance and unified plasmonic and catalytic functions.
A plasmonic nanofocus, often in the form of a nanogap, is capable of concentrating light in a nanometric volume. The greatly enhanced electromagnetic field offers many opportunities in physics and chemistry. However, the lack of a method to fine-tune the chemical activities of the nanofocus has severely limited its application. Here we communicate an intriguing class of chemically modified nanofoci (CMNFs) that are able to address this challenge. Our results successfully demonstrate a possibility to functionalize the nanosized, mass-transport-restricted nanogap (nanofocus) of a dimeric gold nanoparticle assembly with homo-(Au) and heterogeneous (Ag, Pt, and Pd) materials. The as-produced structures with conductive Au and Ag junctions generate a novel form of charge transfer plasmon (CTP) with continuously tunable frequency covering the visible and near-infrared domains. In addition, the Ag materials can be displaced by catalytic Pt and Pd metals while still maintaining a tightly focused electromagnetic field. These hybrid structures with unified catalytic and plasmonic properties enable real-time, on-site probing of catalytic conversions at the nanofocus by plasmon-enhanced Raman scattering. The chemically/optically engineered CMNFs represent the simplest function-integrated nanodevices for plasmonics, sensing, and catalysis. Our work not only realizes chemical CTP reshaping, but also allows chemical functionalization into an intensified plasmonic near-field. The latter may enable unconventional chemical reactions driven by the catalytically functionalized, strongly boosted light field.
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Affiliation(s)
- Yueliang Wang
- CAS Key Laboratory of Soft Matter Chemistry , Hefei National Research Center for Physical Sciences at the Microscale , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Lingling Fang
- CAS Key Laboratory of Soft Matter Chemistry , Hefei National Research Center for Physical Sciences at the Microscale , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Ming Gong
- Engineering and Materials Science Experiment Center , University of Science and Technology of China , Hefei , Anhui 230027 , China
| | - Zhaoxiang Deng
- CAS Key Laboratory of Soft Matter Chemistry , Hefei National Research Center for Physical Sciences at the Microscale , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China .
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14
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Feng J, Yang F, Wang X, Lyu F, Li Z, Yin Y. Self-Aligned Anisotropic Plasmonic Nanostructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1900789. [PMID: 30924976 DOI: 10.1002/adma.201900789] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/08/2019] [Indexed: 06/09/2023]
Abstract
Great opportunities emerge not only in the generation of anisotropic plasmonic nanostructures but also in controlling their orientation relative to incident light. Herein, a stepwise seeded growth method is reported for the synthesis of rod-shaped plasmon nanostructures which are vertically self-aligned with respect to the surface of colloidal substrates. Anisotropic growth of metal nanostructure is achieved by depositing metal seeds onto the surface of colloidal substrates and then selectively passivating the seed surface to induce symmetry breaking in the subsequent seed-mediated growth process. The versatility of this method is demonstrated by producing nanoparticle dimers and linear trimers of Au, Au-Ag, Au-Pd, and Au-Cu2 O. Further, this unique method enables the automatic vertical alignment of the resulting plasmonic nanostructures to the surface of the colloidal substrate, thereby making it possible to design magnetic/plasmonic nanocomposites that allow the dynamic tuning of the plasmon excitation by controlling their orientation using an external magnetic field. The controlled anisotropic growth of colloidal plasmonic nanostructures and their dynamic modulation of plasmon excitation further allow them to be conveniently fixed in a thin polymer film with a well-controlled orientation to display polarization-dependent patterns that may find important applications in information encryption.
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Affiliation(s)
- Ji Feng
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Fan Yang
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Xiaojing Wang
- Materials Science and Engineering Program, University of California, Riverside, CA, 92521, USA
| | - Fenglei Lyu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Zhiwei Li
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
- Materials Science and Engineering Program, University of California, Riverside, CA, 92521, USA
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15
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Fang L, Liu D, Wang Y, Li Y, Song L, Gong M, Li Y, Deng Z. Nanosecond-Laser-Based Charge Transfer Plasmon Engineering of Solution-Assembled Nanodimers. NANO LETTERS 2018; 18:7014-7020. [PMID: 30281316 DOI: 10.1021/acs.nanolett.8b02965] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The ability to re-engineer self-assembled functional structures with nanometer accuracy through solution-processing techniques represents a big challenge in nanotechnology. Herein we demonstrate that Ag+-soldered nanodimers with a steric confinement coating of silica can be harnessed to realize an in-solution nanosecond laser reshaping to form interparticle conductive pathway with finely controlled conductance. The high structural purity of the nanodimers, the rigid silica coating, and the uniform (but still adjustable) sub-1-nm interparticle gap together determine the success of the laser reshaping process. This method is applicable to DNA-assembled nanodimers, and thus promises DNA-based programming toward higher structural complexity. The resulting structures exhibit highly tunable charge transfer plasmons at visible and near-infrared frequencies dictated by the fluence of the laser pulses. Our work provides an in-solution, rapid, and nonperturbative route to realize charge transfer plasmonic coupling along prescribed paths defined by self-assembly, conferring great opportunities for functional metamaterials in the context of chemical, biological, and nanophotonic applications. The ability to continuously control a subnm interparticle gap and the nanomeric width of a conductive junction also provides a platform to investigate modern plasmonic theories involving quantum and nonlocal effects.
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Affiliation(s)
- Lingling Fang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Dilong Liu
- Key Lab of Materials Physics, Institute of Solid State Physics , Chinese Academy of Sciences , Hefei , Anhui 230031 , China
| | - Yueliang Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Yanjuan Li
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Lei Song
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Ming Gong
- Engineering and Materials Science Experiment Center , University of Science and Technology of China , Hefei , Anhui 230027 , China
| | - Yue Li
- Key Lab of Materials Physics, Institute of Solid State Physics , Chinese Academy of Sciences , Hefei , Anhui 230031 , China
| | - Zhaoxiang Deng
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
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16
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Xianyu Y, Wang Q, Chen Y. Magnetic particles-enabled biosensors for point-of-care testing. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.07.010] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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Li Y, Di Z, Gao J, Cheng P, Di C, Zhang G, Liu B, Shi X, Sun LD, Li L, Yan CH. Heterodimers Made of Upconversion Nanoparticles and Metal-Organic Frameworks. J Am Chem Soc 2017; 139:13804-13810. [PMID: 28899098 DOI: 10.1021/jacs.7b07302] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Creating nanoparticle dimers has attracted extensive interest. However, it still remains a great challenge to synthesize heterodimers with asymmetric compositions and synergistically enhanced functions. In this work, we report the synthesis of high quality heterodimers composed of porphyrinic nanoscale metal-organic frameworks (nMOF) and lanthanide-doped upconversion nanoparticles (UCNPs). Due to the dual optical properties inherited from individual nanoparticles and their interactions, absorption of low energy photons by the UCNPs is followed by energy transfer to the nMOFs, which then undergo activation of porphyrins to generate singlet oxygen. Furthermore, the strategy enables the synthesis of heterodimers with tunable UCNP size and dual NIR light harvesting functionality. We demonstrated that the hybrid architectures represent a promising platform to combine NIR-induced photodynamic therapy and chemotherapy for efficient cancer treatment. We believe that such heterodimers are capable of expanding their potential for applications in solar cells, photocatalysis, and nanomedicine.
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Affiliation(s)
- Yifan Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China
| | - Zhenghan Di
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China
| | - Jinhong Gao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China
| | - Ping Cheng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China
| | - Chunzhi Di
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China
| | - Ge Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Lab in Rare Earth Materials and Bioinorganic Chemistry, Peking University , Beijing 100871, China
| | - Bei Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China
| | - Xinghua Shi
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China
| | - Ling-Dong Sun
- Beijing National Laboratory for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Lab in Rare Earth Materials and Bioinorganic Chemistry, Peking University , Beijing 100871, China
| | - Lele Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China
| | - Chun-Hua Yan
- Beijing National Laboratory for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Lab in Rare Earth Materials and Bioinorganic Chemistry, Peking University , Beijing 100871, China
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18
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Zhu H, Nagaoka Y, Hills-Kimball K, Tan R, Yu L, Fang Y, Wang K, Li R, Wang Z, Chen O. Pressure-Enabled Synthesis of Hetero-Dimers and Hetero-Rods through Intraparticle Coalescence and Interparticle Fusion of Quantum-Dot-Au Satellite Nanocrystals. J Am Chem Soc 2017; 139:8408-8411. [PMID: 28594551 DOI: 10.1021/jacs.7b04018] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This report presents the fabrication and pressure-driven processing of heterostructural nanocrystal superlattices (HNC-SLs) self-assembled from quantum-dot-Au (QD-Au) satellite-type HNCs. In situ small/wide-angle X-ray scattering and electron microscopic measurements showed that the HNC-SLs underwent structural transformation at both atomic- and mesoscales during the pressure processing. Upon deviatoric stress-driven orientational migration, the intraparticle coalescence of Au satellites at QD surfaces transforms individual HNCs into heterodimers, whereas the interparticle fusion drives assembled HNCs into ordered heterorod arrays. These results demonstrate high-pressure-processing as a clean and fast means for conversion of HNCs into novel heteromaterials that are difficult to achieve through conventional synthetic routes.
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Affiliation(s)
- Hua Zhu
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Yasutaka Nagaoka
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Katie Hills-Kimball
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Rui Tan
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Long Yu
- Department of Materials Science and Engineering, University of Florida , Gainesville, Florida 32611, United States
| | - Yin Fang
- Department of Materials Science and Engineering, University of Florida , Gainesville, Florida 32611, United States
| | - Kelly Wang
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Ruipeng Li
- Cornell High Energy Synchrotron Source, Cornell University , Ithaca, New York 14853, United States
| | - Zhongwu Wang
- Cornell High Energy Synchrotron Source, Cornell University , Ithaca, New York 14853, United States
| | - Ou Chen
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
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19
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Thota S, Zhou Y, Chen S, Zou S, Zhao J. Formation of bimetallic dumbbell shaped particles with a hollow junction during galvanic replacement reaction. NANOSCALE 2017; 9:6128-6135. [PMID: 28447694 DOI: 10.1039/c7nr00917h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The galvanic replacement reaction (GRR) has been shown to be an effective method to fine tune the structure of monometallic nanoparticles by controlling the precursor concentration and surface ligands. However, the structural evolution of nanoparticles is not well understood in multimetallic systems, where along with oxidation, dealloying and diffusion occur simultaneously. Here, we demonstrate that by controlling the rate of GRR in AuCu alloy nanorods, they can be transformed into either AuCu hollow rods or AuCu@Au core-shell spheroids. Interestingly, the transformation of rods into spheroids involved a critical intermediate state with a hollow junction and dumbbell shape. The formation of a hollow junction region was attributed to preferential diffusion of Cu atoms to the tips caused by the polycrystallinity and high curvature of the tips of the initial template. This structural transformation was also monitored in situ by single particle scattering spectroscopy. The coupling between the two ends of the dumbbell-shaped intermediate connected with a hollow metallic junction gives rise to additional plasmonic features compared with regular rods. Electrodynamic simulations showed that varying the dimensions of the hollow part by even one nanometer altered the plasmon resonance wavelength and lineshape drastically. This study shows that single particle plasmon resonance can be used as an exquisite tool to probe the internal structure of the nanoscale junctions.
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Affiliation(s)
- Sravan Thota
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, USA.
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20
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Ma W, Xu L, de Moura AF, Wu X, Kuang H, Xu C, Kotov NA. Chiral Inorganic Nanostructures. Chem Rev 2017; 117:8041-8093. [DOI: 10.1021/acs.chemrev.6b00755] [Citation(s) in RCA: 485] [Impact Index Per Article: 69.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | | | - André F. de Moura
- Department
of Chemistry, Federal University of São Carlos, CP 676, CEP 13.565-905, São Carlos, SP, Brazil
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21
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Fang L, Wang Y, Liu M, Gong M, Xu A, Deng Z. Dry Sintering Meets Wet Silver-Ion “Soldering”: Charge-Transfer Plasmon Engineering of Solution-Assembled Gold Nanodimers From Visible to Near-Infrared I and II Regions. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608271] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lingling Fang
- CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei Anhui 230026 China
| | - Yueliang Wang
- CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei Anhui 230026 China
| | - Miao Liu
- CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei Anhui 230026 China
| | - Ming Gong
- Engineering and Materials Science Experiment Center; University of Science and Technology of China; Hefei Anhui 230027 China
| | - An Xu
- Key Laboratory of Ion Beam Bioengineering; Hefei Institutes of Physical Science; Chinese Academy of Sciences; Hefei Anhui 230031 China
| | - Zhaoxiang Deng
- CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei Anhui 230026 China
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22
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Fang L, Wang Y, Liu M, Gong M, Xu A, Deng Z. Dry Sintering Meets Wet Silver-Ion “Soldering”: Charge-Transfer Plasmon Engineering of Solution-Assembled Gold Nanodimers From Visible to Near-Infrared I and II Regions. Angew Chem Int Ed Engl 2016; 55:14296-14300. [DOI: 10.1002/anie.201608271] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Indexed: 01/16/2023]
Affiliation(s)
- Lingling Fang
- CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei Anhui 230026 China
| | - Yueliang Wang
- CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei Anhui 230026 China
| | - Miao Liu
- CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei Anhui 230026 China
| | - Ming Gong
- Engineering and Materials Science Experiment Center; University of Science and Technology of China; Hefei Anhui 230027 China
| | - An Xu
- Key Laboratory of Ion Beam Bioengineering; Hefei Institutes of Physical Science; Chinese Academy of Sciences; Hefei Anhui 230031 China
| | - Zhaoxiang Deng
- CAS Key Laboratory of Soft Matter Chemistry; University of Science and Technology of China; Hefei Anhui 230026 China
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23
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Zheng J, Wu Y, Deng K, He M, He L, Cao J, Zhang X, Liu Y, Li S, Tang Z. Chirality-Discriminated Conductivity of Metal-Amino Acid Biocoordination Polymer Nanowires. ACS NANO 2016; 10:8564-8570. [PMID: 27556354 DOI: 10.1021/acsnano.6b03833] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Biocoordination polymer (BCP) nanowires are successfully constructed through self-assembly of chiral cysteine amino acids and Cd cations in solution. The varied chirality of cysteine is explored to demonstrate the difference of BCP nanowires in both morphology and structure. More interestingly and surprisingly, the electrical property measurement reveals that, although all Cd(II)/cysteine BCP nanowires behave as semiconductors, the conductivity of the Cd(II)/dl-cysteine nanowires is 4 times higher than that of the Cd(II)/l-cysteine or Cd(II)/d-cysteine ones. The origin of such chirality-discriminated characteristics registered in BCP nanowires is further elucidated by theoretical calculation. These findings demonstrate that the morphology, structure, and property of BCP nanostructures could be tuned by the chirality of the bridging ligands, which will shed light on the comprehension of chirality transcription as well as construction of chirality-regulated functional materials.
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Affiliation(s)
- Jianzhong Zheng
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, People's Republic of China
- Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University , Zhangzhou 363000, People's Republic of China
| | - Yijin Wu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, People's Republic of China
- Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University , Zhangzhou 363000, People's Republic of China
| | - Ke Deng
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, People's Republic of China
| | - Meng He
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, People's Republic of China
| | - Liangcan He
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, People's Republic of China
| | - Jing Cao
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, People's Republic of China
| | - Xugang Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, People's Republic of China
| | - Yaling Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, People's Republic of China
| | - Shunxing Li
- Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University , Zhangzhou 363000, People's Republic of China
| | - Zhiyong Tang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, People's Republic of China
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24
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Chen Z, Ji H, Liu C, Bing W, Wang Z, Qu X. A Multinuclear Metal Complex Based DNase-Mimetic Artificial Enzyme: Matrix Cleavage for Combating Bacterial Biofilms. Angew Chem Int Ed Engl 2016; 55:10732-6. [PMID: 27484616 DOI: 10.1002/anie.201605296] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/04/2016] [Indexed: 12/18/2022]
Abstract
Extracellular DNA (eDNA) is an essential structural component during biofilm formation, including initial bacterial adhesion, subsequent development, and final maturation. Herein, the construction of a DNase-mimetic artificial enzyme (DMAE) for anti-biofilm applications is described. By confining passivated gold nanoparticles with multiple cerium(IV) complexes on the surface of colloidal magnetic Fe3 O4 /SiO2 core/shell particles, a robust and recoverable artificial enzyme with DNase-like activity was obtained, which exhibited high cleavage ability towards both model substrates and eDNA. Compared to the high environmental sensitivity of natural DNase in anti-biofilm applications, DMAE exhibited a much better operational stability and easier recoverability. When DMAE was coated on substratum surfaces, biofilm formation was inhibited for prolonged periods of time, and the DMAE excelled in the dispersion of established biofilms of various ages. Finally, the presence of DMAE remarkably potentiated the efficiency of traditional antibiotics to kill biofilm-encased bacteria and eradiate biofilms.
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Affiliation(s)
- Zhaowei Chen
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Chinese Academy of Sciences, Beijing, 100039, China.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
| | - Haiwei Ji
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Chaoqun Liu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Wei Bing
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Zhenzhen Wang
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Xiaogang Qu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.
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25
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Chen Z, Ji H, Liu C, Bing W, Wang Z, Qu X. A Multinuclear Metal Complex Based DNase-Mimetic Artificial Enzyme: Matrix Cleavage for Combating Bacterial Biofilms. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605296] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zhaowei Chen
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100039 China
- Joint Department of Biomedical Engineering; University of North Carolina at Chapel Hill and North Carolina State University; Raleigh NC 27695 USA
| | - Haiwei Ji
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100039 China
| | - Chaoqun Liu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100039 China
| | - Wei Bing
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100039 China
| | - Zhenzhen Wang
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100039 China
| | - Xiaogang Qu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
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26
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Liu M, Fang L, Li Y, Gong M, Xu A, Deng Z. "Flash" preparation of strongly coupled metal nanoparticle clusters with sub-nm gaps by Ag + soldering: toward effective plasmonic tuning of solution-assembled nanomaterials. Chem Sci 2016; 7:5435-5440. [PMID: 30034682 PMCID: PMC6021751 DOI: 10.1039/c6sc01407k] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 05/01/2016] [Indexed: 01/09/2023] Open
Abstract
Noble metal nanoparticle oligomers are important in applications including plasmonics, catalysis, and molecular sensing. These nanostructural units featuring abundant inter-particle junctions are helpful for a physical/chemical understanding of structure-activity relationships of self-assembled metamaterials. A simple, rapid, and potentially general strategy for the preparation of monodisperse nanoparticle clusters in a homogeneous solution is highly desired for fundamental research toward liquid metamaterials and chemical/biological applications, but this is however very challenging. Here we report an Ag+ soldering strategy to prepare strongly coupled plasmonic (Au) and catalytic (Pt, Au@Pd (Au core with a Pd shell)) nanoparticle clusters almost instantly (<1 min) in a solution without special synthetic efforts, complicated surface decorations, or structure-directing templates. The resulting clusters are isolatable by agarose gel electrophoresis, resulting in mechanically stable products in high purity. The optical extinctions of Au nanodimers (the simplest and most basic form of a coupled structure) exhibit prominent longitudinal plasmonic coupling for nanoparticles down to 13.3 nm in diameter. Theoretical simulations attribute the strong coupling to the existence of a sub-nm gap (c.a. 0.76 nm) between soldered particles, suggesting an ideal (stable, soluble, monodisperse, and weakly passivated) substrate for surface enhanced Raman scattering (SERS) applications.
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Affiliation(s)
- Miao Liu
- CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Lingling Fang
- CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Yulin Li
- CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Ming Gong
- Engineering and Materials Science Experiment Center , University of Science and Technology of China , Hefei , Anhui 230027 , China
| | - An Xu
- Key Laboratory of Ion Beam Bioengineering , Hefei Institutes of Physical Science , Chinese Academy of Sciences , Hefei , Anhui 230031 , China
| | - Zhaoxiang Deng
- CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China .
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Huang J, Zhu Y, Liu C, Shi Z, Fratalocchi A, Han Y. Unravelling Thiol's Role in Directing Asymmetric Growth of Au Nanorod-Au Nanoparticle Dimers. NANO LETTERS 2016; 16:617-623. [PMID: 26670659 DOI: 10.1021/acs.nanolett.5b04329] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Asymmetric nanocrystals have practical significance in nanotechnologies but present fundamental synthetic challenges. Thiol ligands have proven effective in breaking the symmetric growth of metallic nanocrystals but their exact roles in the synthesis remain elusive. Here, we synthesized an unprecedented Au nanorod-Au nanoparticle (AuNR-AuNP) dimer structure with the assistance of a thiol ligand. On the basis of our experimental observations, we unraveled for the first time that the thiol could cause an inhomogeneous distribution of surface strains on the seed crystals as well as a modulated reduction rate of metal precursors, which jointly induced the asymmetric growth of monometallic dimers.
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Affiliation(s)
- Jianfeng Huang
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Yihan Zhu
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Changxu Liu
- PRIMALIGHT, Faculty of Electrical Engineering, Applied Mathematics and Computational Science, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Zhan Shi
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University , Changchun 130012, China
| | - Andrea Fratalocchi
- PRIMALIGHT, Faculty of Electrical Engineering, Applied Mathematics and Computational Science, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Yu Han
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
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Luo D, Yan C, Wang T. Interparticle Forces Underlying Nanoparticle Self-Assemblies. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:5984-6008. [PMID: 26436692 DOI: 10.1002/smll.201501783] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Revised: 08/03/2015] [Indexed: 05/27/2023]
Abstract
Studies on the self-assembly of nanoparticles have been a hot topic in nanotechnology for decades and still remain relevant for the present and future due to their tunable collective properties as well as their remarkable applications to a wide range of fields. The novel properties of nanoparticle assemblies arise from their internal interactions and assemblies with the desired architecture key to constructing novel nanodevices. Therefore, a comprehensive understanding of the interparticle forces of nanoparticle self-assemblies is a pre-requisite to the design and control of the assembly processes, so as to fabricate the ideal nanomaterial and nanoproducts. Here, different categories of interparticle forces are classified and discussed according to their origins, behaviors and functions during the assembly processes, and the induced collective properties of the corresponding nanoparticle assemblies. Common interparticle forces, such as van der Waals forces, electrostatic interactions, electromagnetic dipole-dipole interactions, hydrogen bonds, solvophonic interactions, and depletion interactions are discussed in detail. In addition, new categories of assembly principles are summarized and introduced. These are termed template-mediated interactions and shape-complementary interactions. A deep understanding of the interactions inside self-assembled nanoparticles, and a broader perspective for the future synthesis and fabrication of these promising nanomaterials is provided.
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Affiliation(s)
- Dan Luo
- Institute of New Energy, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, China
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China
| | - Cong Yan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China
| | - Tie Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China
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29
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Zhang N, Yang MQ, Liu S, Sun Y, Xu YJ. Waltzing with the Versatile Platform of Graphene to Synthesize Composite Photocatalysts. Chem Rev 2015; 115:10307-77. [DOI: 10.1021/acs.chemrev.5b00267] [Citation(s) in RCA: 929] [Impact Index Per Article: 103.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Nan Zhang
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P.R. China
- College of Chemistry, New Campus, Fuzhou University, Fuzhou 350108, P.R. China
| | - Min-Quan Yang
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P.R. China
- College of Chemistry, New Campus, Fuzhou University, Fuzhou 350108, P.R. China
| | - Siqi Liu
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P.R. China
- College of Chemistry, New Campus, Fuzhou University, Fuzhou 350108, P.R. China
| | - Yugang Sun
- Center
for Nanoscale Materials, Argonne National Laboratory, 9700 South
Cass Avenue, Argonne, Illinois 60439, United States
| | - Yi-Jun Xu
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P.R. China
- College of Chemistry, New Campus, Fuzhou University, Fuzhou 350108, P.R. China
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30
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Wu S, Tan SY, Ang CY, Nguyen KT, Li M, Zhao Y. An imine-based approach to prepare amine-functionalized Janus gold nanoparticles. Chem Commun (Camb) 2015; 51:11622-5. [PMID: 26097920 DOI: 10.1039/c5cc03582a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An imine-based approach was developed to prepare Janus gold nanoparticles (Janus AuNPs) having amine functionality on one patch of the surface and a polyethylene glycol unit on the other. This unique technique features covalent bonding as the force to immobilize AuNPs on the template, enabling direct modification of AuNPs in both water and organic solvents. Colloidal clusters were then obtained via electrostatic assembly of these Janus AuNPs with citrate stabilized AuNPs or AgNPs.
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Affiliation(s)
- Shaojue Wu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.
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Abstract
Abstract
Dimerization of different nanocomponents in single nanoparticles becomes interesting due to not only inheritance of properties of both components but also generation of new properties associated with strong coupling of the two components. As a class of emerging nanomaterials, interfaced heterogeneous nanodimers (IHNDs) are attracting more attentions in the field of materials research, in particular, nanoscience and nanotechnology. This review provides a timely and comprehensive overview on the general principles for the synthesis of IHNDs and typical examples of IHNDs made of various compositional combinations. The current challenges related to the synthesis and characterization of IHNDs are summarized at the end of the review and future research directions are also discussed.
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Affiliation(s)
- Yugang Sun
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, IL 60439, USA
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32
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Encapsulation of superparamagnetic Fe3O4@SiO2 core/shell nanoparticles in MnO2 microflowers with high surface areas. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2014.10.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Qiao X, Liu X, Li X, Xing S. Anchoring gold nanoparticles inside polyaniline shells with magnetic cores for the enhancement of catalytic stability. NEW J CHEM 2015. [DOI: 10.1039/c5nj01798j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Owing to the protection effect and stability of polyaniline, the yolk–shell nanostructured Fe3O4@Au–polyaniline illustrated enhanced catalytic stability.
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Affiliation(s)
- Xiaoguang Qiao
- Jilin Provincial Key Laboratory of Micro-Nano Functional Materials
- Northeast Normal University
- Changchun
- P.R. China
| | - Xianchun Liu
- Jilin Provincial Key Laboratory of Micro-Nano Functional Materials
- Northeast Normal University
- Changchun
- P.R. China
| | - Xiaoting Li
- Jilin Provincial Key Laboratory of Micro-Nano Functional Materials
- Northeast Normal University
- Changchun
- P.R. China
| | - Shuangxi Xing
- Jilin Provincial Key Laboratory of Micro-Nano Functional Materials
- Northeast Normal University
- Changchun
- P.R. China
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Cha H, Yoon JH, Yoon S. Probing quantum plasmon coupling using gold nanoparticle dimers with tunable interparticle distances down to the subnanometer range. ACS NANO 2014; 8:8554-63. [PMID: 25089844 DOI: 10.1021/nn5032438] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The assembly of noble metal nanoparticles is an appealing means to control the plasmonic properties of nanostructures. Dimers are particularly interesting because they are a model system that can provide fundamental insights into the interactions between nanoparticles in close proximity. Here, we report a highly efficient and facile assembly method for dimers and other forms of assemblies. Gold nanoparticles (AuNPs) adsorbed on aminosilanized glass surfaces protect the silanes underneath the nanoparticles from hydrolysis. This masked desilanization allows us to prepare AuNP homodimers on glass slides with remarkably high yield (∼90%). The interparticle distance and, accordingly, the surface plasmon coupling are readily tuned at the molecular level using self-assembled monolayers of alkanedithiols. As the interparticle distance is reduced, the resonance surface plasmon coupling progressively redshifts, following the classical electromagnetic model. When the interparticle distance enters the subnanometer regime, however, the resonance band begins to blueshift and significantly broadens. The comparison of our observations with theoretical studies reveals that quantum tunneling effects play a significant role in the plasmonic response of AuNP dimers in the subnanometer gap region. The assembly method based on the masked desilanization is extendable to the formation of various other forms of nanoassemblies and, thus, will further our understanding of plasmonic interactions in nanoassemblies.
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Affiliation(s)
- Hoon Cha
- Department of Chemistry, Dankook University , 152 Jukjeon-ro, Suji-gu, Yongin, Gyeonggi 448-701, Korea
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35
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Tanaka Y, Matsumoto A, Tsuruoka T, Nawafune H, Akamatsu K. Gold Nanoparticle Satellite Nanostructures on a Glass Substrate for Dual-responsive Optical Sensing of Organic Liquids. CHEM LETT 2014. [DOI: 10.1246/cl.140211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yuya Tanaka
- Department of Nanobiochemistry, Frontiers of Innovative Research in Science and Technology (FIRST), Konan University
| | - Ai Matsumoto
- Department of Nanobiochemistry, Frontiers of Innovative Research in Science and Technology (FIRST), Konan University
| | - Takaaki Tsuruoka
- Department of Nanobiochemistry, Frontiers of Innovative Research in Science and Technology (FIRST), Konan University
| | - Hidemi Nawafune
- Department of Nanobiochemistry, Frontiers of Innovative Research in Science and Technology (FIRST), Konan University
| | - Kensuke Akamatsu
- Department of Nanobiochemistry, Frontiers of Innovative Research in Science and Technology (FIRST), Konan University
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36
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Zhang X, Zhu Y, Yang X, Zhou Y, Yao Y, Li C. Multifunctional Fe3O4@TiO2@Au magnetic microspheres as recyclable substrates for surface-enhanced Raman scattering. NANOSCALE 2014; 6:5971-5979. [PMID: 24777634 DOI: 10.1039/c4nr00975d] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Herein, we demonstrate the design and fabrication of multifunctional triplex Fe3O4@TiO2@Au core-shell magnetic microspheres (MSs), which show excellent surface enhanced Raman scattering (SERS) activity with high reproducibility and stability. In addition, due to their excellent catalytic properties, the as-prepared Fe3O4@TiO2@Au magnetic MSs can clean themselves by photocatalytic degradation of target molecules adsorbed onto the substrate under irradiation with visible light, and can be re-used for several cycles with convenient magnetic separability. The influence of the size and distribution of Au nanoparticles (NPs) on the Fe3O4@TiO2 beads is investigated. The optimized samples employing Au NPs of 15 nm size and an areal density of about 2120 Au NPs on every MS show the best SERS activity and recyclable performance. The experimental results show that these magnetic MSs indicate a new route in eliminating the 'single-use' problem of traditional SERS substrates and exhibit their applicability as analytical tools for the detection of different molecular species.
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Affiliation(s)
- Xiaoqing Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
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37
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Zhou T, Dong B, Qi H, Lau HK, Li CY. One-step formation of responsive "dumbbell" nanoparticle dimers via quasi-two-dimensional polymer single crystals. NANOSCALE 2014; 6:4551-4554. [PMID: 24667970 DOI: 10.1039/c4nr00501e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We present a facile approach to synthesize "dumbbell" nanoparticle dimers via one-step coupling of nanoparticles and quasi-two-dimensional polymer single crystals. These dimers exhibit responsive properties enabled by flexible polymeric linkers.
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Affiliation(s)
- Tian Zhou
- Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, USA.
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38
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Enhanced photocatalysis by hybrid hierarchical assembly of plasmonic nanocrystals with high surface areas. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.08.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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39
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Tsai DH, Cho TJ, DelRio FW, Gorham JM, Zheng J, Tan J, Zachariah MR, Hackley VA. Controlled formation and characterization of dithiothreitol-conjugated gold nanoparticle clusters. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3397-3405. [PMID: 24592809 DOI: 10.1021/la500044y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report a systematic study of the controlled formation of discrete-sized gold nanoparticle clusters (GNCs) by interaction with the reducing agent dithiothreitol (DTT). Asymmetric-flow field flow fractionation and electrospray differential mobility analysis were employed complementarily to determine the particle size distributions of DTT-conjugated GNCs (DTT-GNCs). Transmission electron microscopy was used to provide visualization of DTT-GNCs at different states of aggregation. Surface packing density of DTT and the corresponding molecular conformation on the Au surface were characterized by inductively coupled plasma mass spectrometry and X-ray photoelectron spectroscopy. Results show that DTT increases the aggregation rate of gold nanoparticles (AuNPs) up to ≈100 times. A mixed conformation (i.e., combining vertically aligned, horizontally aligned, and cross-linking modes) exists for DTT on the Au surface for all conditions examined. The primary size of AuNPs, concentration of DTT, and the starting concentration of AuNPs influence the degree of aggregation for DTT-GNCs, indicating that the collision frequency, energy barrier, and surface density of DTT are the key factors that control the aggregation rate. DTT-GNCs exhibit improved structural stability compared to the citrate-stabilized GNCs (i.e., unconjugated) following reaction with thiolated polyethylene glycol (SH-PEG), indicating that cross-linking and surface protection by DTT suppresses disaggregation normally induced by the steric repulsion of SH-PEG. This work describes a prototype methodology to form ligand-conjugated GNCs with high-quality and well-controlled material properties.
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Affiliation(s)
- De-Hao Tsai
- Materials Measurement Science Division and ‡Chemical Sciences Division, National Institute of Standards and Technology , Gaithersburg, Maryland 20899, United States
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40
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Ji X, Yang W. High-purity gold nanocrystal dimers: scalable synthesis and size-dependent plasmonic and Raman enhancement. Chem Sci 2014. [DOI: 10.1039/c3sc52135d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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41
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Liu Y, Tang Z. Multifunctional nanoparticle@MOF core-shell nanostructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:5819-5825. [PMID: 24038572 DOI: 10.1002/adma.201302781] [Citation(s) in RCA: 184] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Indexed: 06/02/2023]
Abstract
Controllable integration of inorganic nanoparticles (NPs) and metal-organic frameworks (MOFs) is leading to the creation of many new multifunctional materials. In this Research News, an emerging type of core-shell nanostructure, in which the inorganic NP cores are encapsulated by the MOF shells, is briefly introduced. Unique functions originating from the property synergies of different types of inorganic NP cores and MOF shells are highlighted, and insight into their future development is suggested. It is highly expected that this Research News could arouse research enthusiasm on such NP@MOF core-shell nanostructures, which have great application potential in devices, energy, the environment, and medicine.
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Affiliation(s)
- Yaling Liu
- National Center for Nanoscience and Technology, Beijing, 100190, PR China
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42
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Sun Y, Foley JJ, Peng S, Li Z, Gray SK. Interfaced metal heterodimers in the quantum size regime. NANO LETTERS 2013; 13:3958-3964. [PMID: 23879377 DOI: 10.1021/nl402361b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Synthesis of nanoparticle dimers made of asymmetric compositions is very challenging because of the difficulty in manipulating the nanoparticles' surface chemistries in order to control the assembly and/or growth of different nanoparticles. In this Letter, we report a seed-mediated, surface-confined epitaxial overgrowth strategy that enables the synthesis of high-quality interfaced Au-Ag heterodimers in the quantum size regime (diameters <10 nm). Au and Ag share a common face-centered cubic lattice and have nearly identical lattice constants, which facilitates epitaxial overgrowth and allows direct contact between the Au and Ag domains. Quantum size effects, formation of the Au/Ag interfaces, and chemical interactions with surfactant molecules strongly influence the optical properties of the dimers and lead to the observation of unique surface plasmon resonances. In particular, we find an unusual enhancement of the characteristic Au surface plasmon resonance and the emergence of a charge transfer plasmon across the Au/Ag domains, which together lead to broad-band absorption spanning visible to near-infrared wavelengths. A model that captures the changes in optical behavior due to chemical interactions and quantum size effects is used to calculate the absorption spectra of the interfaced heterodimers, resulting in good agreement with experimental measurements.
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Affiliation(s)
- Yugang Sun
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, United States.
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