Controlled Assembly of Eccentrically Encapsulated Gold Nanoparticles

Chen, Tao; Yang, Miaoxin; Wang, Xinjiao; Tan, Li; Chen, Hongyu

doi:10.1021/ja8040288

Cited by 214 publications

(222 citation statements)

References 20 publications

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“…Temporary masking and demasking of colloids using gels, waxes or elastomers has been a successful strategy in liquid-phase techniques for producing Janus particles. [10,11,17,21,55,56] Though a variety of other techniques have been developed for producing Janus particles, [57][58][59][60][61] very few of them can be extended or modified to produce patchy particles.…”

Section: Definition Of the Term Patchy Particlementioning

confidence: 99%

Fabrication, Assembly, and Application of Patchy Particles

Pawar

Kretzschmar

2010

Macromol. Rapid Commun.

452

411

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The site‐specific engineering of colloidal surfaces has provided a powerful approach to pushing the boundaries of today's materials research. The resulting surface‐anisotropic and patchy particles have become the center of vital research areas, ranging from the need for large‐scale fabrication techniques to exploring new applications of these materials. This Review summarizes patchy particle fabrication techniques, including but not limited to particle and nanosphere lithography and glancing‐angle deposition. The variety of existing patchy particle fabrication techniques is revealed and the need for a scalable approach to high‐volume patchy particle production is identified. Ongoing modeling efforts describing patchy particle interactions and properties are reviewed as potential predictive tools. Research endeavors that deal with the directed assembly of patchy particles in electric and magnetic fields, as well as with supraparticular assembly through chemical interactions, are discussed. The Review is concluded with a note on the future application of patchy particles as phoretic motors.magnified image

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Section: Definition Of the Term Patchy Particlementioning

confidence: 99%

Fabrication, Assembly, and Application of Patchy Particles

Pawar

Kretzschmar

2010

Macromol. Rapid Commun.

452

411

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“…The key challenge is to develop general methodologies to assemble colloidal nano-objects with precise stoichiometry. Previously, homo-aggregates such as dimers and trimers were prepared by exploiting either random aggregation [6][7][8] , steric effects [9][10][11][12] or specific control over surface ligands (for example, divalent NPs) [13][14][15][16] . Compared with these 'homo-coupling' nanoreactions, controlling stoichiometry in the 'cross-coupling' of NPs presents different and arguably greater challenges.…”

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confidence: 99%

A systems approach towards the stoichiometry-controlled hetero-assembly of nanoparticles

et al. 2010

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A central theme in nanotechnology is to advance the fundamental understanding of nanoscale component assembly, thereby allowing rational structural design that may lead to materials with novel properties and functions. nanoparticles (nPs) are often regarded as 'artificial atoms', but their 'reactions' are not readily controllable. Here, we demonstrate a complete nanoreaction system whereby colloidal nPs are rationally assembled and purified. Two types of functionalized gold nPs (A and B) are bonded to give specific products AB, AB 2 , AB 3 and AB 4 . The stoichiometry control is realized by fine-tuning the charge repulsion among the B-nPs. The products are protected by a polymer, which allows their isolation in high purity. The integration of hetero-assembly, stoichiometry control, protection scheme and separation method may provide a scalable way to fabricate sophisticated nanostructures.

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“…[132] Chen et al have created eccentrically coated Au nanoparticles via ligand exchange induced protrusion of the Au nanoparticles. [133] …”

Section: Microphase Separationmentioning

confidence: 99%

Molecular Mimetic Self‐Assembly of Colloidal Particles

Mao

Wang

2010

Adv Funct Materials

135

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This article presents an overview of the current progress in molecular mimetic self‐assembly of colloidal particles. Firstly, the recent study of colloidal particles at interfaces is highlighted, underlining the mesoscopic mimicry of the surface activity of amphiphilic molecules using colloidal particles. Secondly, various strategies developed thus far to impart colloidal particles with anisotropy in terms of chemical composition, surface chemistry and particle morphology, which are regarded as mesoscopic atoms and molecules, are reviewed. Thirdly, an overview of the current theoretical and experimental results of using the rules of molecular synthesis and self‐assembly to direct self‐assembly of colloidal particles is presented. Finally, the experimental challenges associated with molecular mimetic self‐assembly of colloidal particles are outlined, giving a rather conservative conclusion of the status quo of this new research field with a very optimistic outlook.

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Controlled Assembly of Eccentrically Encapsulated Gold Nanoparticles

Abstract: Controlled partial attachment of polymer on gold nanoparticles breaks the symmetry of their surface functionalities, allowing tailored assembly of the nanoparticles.

Cited by 214 publications

References 20 publications

Fabrication, Assembly, and Application of Patchy Particles

Fabrication, Assembly, and Application of Patchy Particles

A systems approach towards the stoichiometry-controlled hetero-assembly of nanoparticles

Molecular Mimetic Self‐Assembly of Colloidal Particles

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