1D Colloidal chains: recent progress from formation to emergent properties and applications

Fan, Xiaodong; Walther, Andreas

doi:10.1039/d2cs00112h

Cited by 24 publications

(26 citation statements)

References 799 publications

(1,174 reference statements)

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“…Numerical simulations based on the finite-difference time-domain method (FDTD) corroborate the near-field coupling of RE emitters into the plasmonic mode and evidence the efficient sub-diffraction guiding of both excitation (VIS) and Nd 3+ fluorescence (NIR) over several microns, in agreement with the experimental findings. Our results exceed those of previous reports on electromagnetic energy transport using plasmonic NP chains by around an order of magnitude [ 14 , 25 , 28 , 29 ], and they hold promise for applications in scalable integrated circuits, advanced sensing, or information processing. Further, the possibility of subwavelength coupling of the fluorescence of RE ions, which are essential components for the development of useful technologies in a future quantum global internet [ 30 , 31 , 32 ], open new avenues to develop integrated active photonic circuits operating below the diffraction limit.…”

Section: Introductioncontrasting

confidence: 80%

“…However, the measured propagation distance is still limited to a few microns, and only a few works deal with the study of the long-range optical energy propagation of coupled emitters to plasmonic arrays [ 2 , 8 , 24 ]. Part of this limitation stems from the technological challenge associated with producing scalable arrangements with very small interparticle distances, and from their combination with optical gain media [ 14 , 23 , 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

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Silver Nanoparticle Chains for Ultra-Long-Range Plasmonic Waveguides for Nd3+ Fluorescence

et al. 2022

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Plasmonic waveguides have been shown to be a promising approach to confine and transport electromagnetic energy beyond the diffraction limit. However, ohmic losses generally prevent their integration at micrometric or millimetric scales. Here, we present a gain-compensated plasmonic waveguide based on the integration of linear chains of Ag nanoparticles on an optically active Nd3+-doped solid-state gain medium. By means of dual confocal fluorescence microscopy, we demonstrate long-range optical energy propagation due to the near-field coupling between the plasmonic nanostructures and the Nd3+ ions. The subwavelength fluorescence guiding is monitored at distances of around 100 µm from the excitation source for two different emission ranges centered at around 900 nm and 1080 nm. In both cases, the guided fluorescence exhibits a strong polarization dependence, consistent with the polarization behavior of the plasmon resonance supported by the chain. The experimental results are interpreted through numerical simulations in quasi-infinite long chains, which corroborate the propagation features of the Ag nanoparticle chains at both excitation (λexc = 590 nm) and emission wavelengths. The obtained results exceed by an order of magnitude that of previous reports on electromagnetic energy transport using linear plasmonic chains. The work points out the potential of combining Ag nanoparticle chains with a small interparticle distance (~2 nm) with rare-earth-based optical gain media as ultra-long-range waveguides with extreme light confinement. The results offer new perspectives for the design of integrated hybrid plasmonic–photonic circuits based on rare-earth-activated solid-state platforms.

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Section: Introductioncontrasting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Silver Nanoparticle Chains for Ultra-Long-Range Plasmonic Waveguides for Nd3+ Fluorescence

et al. 2022

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“…Protein filaments are key to many cellular functions since their dysregulation often leads to the occurrence of disease states. − The structural and dynamic properties of protein filaments are encoded in the building units, periodically repeated along the polymer chain. Several mechanisms have been postulated to explain these features − and many of the proposed models have served as theoretical frameworks for the rational design of synthetic polymers. − Nowadays, general construction principles and sophisticated chemical methods are available to control not only the length distribution and growth rate of filamentous structures, but also the kinetic route to otherwise inaccessible metastable assemblies. − …”

Section: Design Of the Dna Origami Monomermentioning

confidence: 99%

“… 10 − 13 Nowadays, general construction principles and sophisticated chemical methods are available to control not only the length distribution and growth rate of filamentous structures, but also the kinetic route to otherwise inaccessible metastable assemblies. 14 − 16 …”

mentioning

confidence: 99%

Growth Rate and Thermal Properties of DNA Origami Filaments

Stenke

Saccá

2022

Nano Lett.

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Synthetic DNA filaments exploit the programmability of the individual units and their predictable self-association to mimic the structural and dynamic features of natural protein filaments. Among them, DNA origami filamentous structures are of particular interest, due to the versatility of morphologies, mechanical properties, and functionalities attainable. We here explore the thermodynamic and kinetic properties of linear structures grown from a ditopic DNA origami unit, i.e., a monomer with two distinct interfaces, and employ either basehybridization or base-stacking interactions to trigger the dimerization and polymerization process. By observing the temporal evolution of the system toward equilibrium, we reveal kinetic aspects of filament growth that cannot be easily captured by postassembly studies. Our work thus provides insights into the thermodynamics and kinetics of hierarchical DNA origami assembly and shows how it can be mastered by the anisotropy of the building unit and its self-association mode.

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“…Finally, in the third section, we will describe some of the newly emerging methods that allow the control of the polymerization state of DNA filaments, either through equilibrium-switching mechanisms or through more complex out-of-equilibrium (i.e., truly dynamic) processes. This topic has been deeply treated in recent authoritative reviews and references therein. − …”

Section: Introductionmentioning

confidence: 99%

Design, Mechanical Properties, and Dynamics of Synthetic DNA Filaments

Stenke

Saccá

2022

Bioconjugate Chem.

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Over the past 40 years, structural and dynamic DNA nanotechnologies have undoubtedly demonstrated to be effective means for organizing matter at the nanoscale and reconfiguring equilibrium structures, in a predictable fashion and with an accuracy of a few nanometers. Recently, novel concepts and methodologies have been developed to integrate nonequilibrium dynamics into DNA nanostructures, opening the way to the construction of synthetic materials that can adapt to environmental changes and thus acquire new properties. In this Review, we summarize the strategies currently applied for the construction of synthetic DNA filaments and conclude by reporting some recent and most relevant examples of DNA filaments that can emulate typical structural and dynamic features of the cytoskeleton, such as compartmentalization in cell-like vesicles, support for active transport of cargos, sustained or transient growth, and responsiveness to external stimuli.

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1D Colloidal chains: recent progress from formation to emergent properties and applications

Abstract: This review discusses the assembly of 0D nanoparticles into hierarchical 1D superstructures with different levels of complexity, their emergent properties and use in functional materials.

Cited by 24 publications

References 799 publications

Silver Nanoparticle Chains for Ultra-Long-Range Plasmonic Waveguides for Nd3+ Fluorescence

Silver Nanoparticle Chains for Ultra-Long-Range Plasmonic Waveguides for Nd3+ Fluorescence

Growth Rate and Thermal Properties of DNA Origami Filaments

Design, Mechanical Properties, and Dynamics of Synthetic DNA Filaments

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