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Antoine R. Self-Assembly of Atomically Precise Nanoclusters: From Irregular Assembly to Crystalline Assembly. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2551. [PMID: 37764580 PMCID: PMC10535127 DOI: 10.3390/nano13182551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023]
Abstract
The persistent efforts toward achieving superior properties for assembled nanoscale particles have been held back due to the resulting polydispersity associated with colloidal routes of synthesis [...].
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Affiliation(s)
- Rodolphe Antoine
- Institut Lumière Matière UMR 5306, Université Claude Bernard Lyon 1, CNRS, Université Lyon, F-69100 Villeurbanne, France
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Yan J, Zhao K, Wu T, Liu X, Li Y, Li B. Optical Printing of Silicon Nanoparticles as Strain-Driven Nanopixels. ACS APPLIED MATERIALS & INTERFACES 2023; 15:38682-38692. [PMID: 37539689 DOI: 10.1021/acsami.3c06391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Silicon nanoparticles (Si NPs) supporting Mie resonances exhibit vivid structural colors on the subwavelength scale. For future wearable devices, next generation Si-based optical units need to be dynamic and stretchable for display, sensing, or signal processing required by human-computer interaction. Here, by utilizing the distance-sensitive electromagnetic coupling of Mie resonances, we maximize the active tuning effect of Si NP-based structures including dimers, oligomers, and NPs on WS2, which we called Si nanopixels. Through the optical tweezers-assisted printing of Si nanopixels, patterns can be formed on arbitrary flexible substrates. The strain-sensitive tuning of scattering spectra indicates their promising application on strain sensing of various stretchable substrates via a simple "spray and test" process. In the case of Si nanopixels on polydimethylsiloxane (PDMS), local strains around 1% can be detected by a scattering measurement. Moreover, we demonstrate that the scattering intensity variation of Si nanopixels printed on wrinkled tungsten disulfide (WS2) is pixel-dependent and wavelength-dependent. This property facilitates the application of information encryption, and we demonstrate that three barcodes can be independently encoded into the R, G, and B scattering channels through ternary logic represented by the strain-tuning effects of scattering.
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Affiliation(s)
- Jiahao Yan
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Kaiqing Zhao
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Tianli Wu
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Xinyue Liu
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Yuchao Li
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Baojun Li
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
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Gentili D, Ori G. Reversible assembly of nanoparticles: theory, strategies and computational simulations. NANOSCALE 2022; 14:14385-14432. [PMID: 36169572 DOI: 10.1039/d2nr02640f] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The significant advances in synthesis and functionalization have enabled the preparation of high-quality nanoparticles that have found a plethora of successful applications. The unique physicochemical properties of nanoparticles can be manipulated through the control of size, shape, composition, and surface chemistry, but their technological application possibilities can be further expanded by exploiting the properties that emerge from their assembly. The ability to control the assembly of nanoparticles not only is required for many real technological applications, but allows the combination of the intrinsic properties of nanoparticles and opens the way to the exploitation of their complex interplay, giving access to collective properties. Significant advances and knowledge gained over the past few decades on nanoparticle assembly have made it possible to implement a growing number of strategies for reversible assembly of nanoparticles. In addition to being of interest for basic studies, such advances further broaden the range of applications and the possibility of developing innovative devices using nanoparticles. This review focuses on the reversible assembly of nanoparticles and includes the theoretical aspects related to the concept of reversibility, an up-to-date assessment of the experimental approaches applied to this field and the advanced computational schemes that offer key insights into the assembly mechanisms. We aim to provide readers with a comprehensive guide to address the challenges in assembling reversible nanoparticles and promote their applications.
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Affiliation(s)
- Denis Gentili
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN), Via P. Gobetti 101, 40129 Bologna, Italy.
| | - Guido Ori
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Rue du Loess 23, F-67034 Strasbourg, France.
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Eliceiri M, Grigoropoulos CP. Optical Trapping and Positioning of Silicon Nanowires via Photonic Nozzling. NANO LETTERS 2022; 22:3777-3783. [PMID: 35438507 DOI: 10.1021/acs.nanolett.2c00834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We have improved the maximum two-dimensional translation rate of optically tweezed silicon nanowires to 30 μm/s while lowering the power usage by an order of magnitude from the ∼100 mW range to 6 mW using a silicon film substrate at 532 nm laser wavelength. We then explain the mechanism for the enhanced tweezing using finite difference time domain simulation as "waveguide nozzling" of the incident radiation, directing the light underneath the nanowire where it is confined and forced to propagate opposite to the direction of nanowire motion. We then demonstrate the robust and deterministic placement of the nanowires on the Si film surface using a nanosecond laser at the same wavelength.
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Affiliation(s)
- Matthew Eliceiri
- University of California─Berkeley, 6129 Etcheverry Hall, Berkeley, California 94720-1740, United States
| | - Costas P Grigoropoulos
- University of California─Berkeley, 6129 Etcheverry Hall, Berkeley, California 94720-1740, United States
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Abstract
Progress in optical manipulation has stimulated remarkable advances in a wide range of fields, including materials science, robotics, medical engineering, and nanotechnology. This Review focuses on an emerging class of optical manipulation techniques, termed heat-mediated optical manipulation. In comparison to conventional optical tweezers that rely on a tightly focused laser beam to trap objects, heat-mediated optical manipulation techniques exploit tailorable optothermo-matter interactions and rich mass transport dynamics to enable versatile control of matter of various compositions, shapes, and sizes. In addition to conventional tweezing, more distinct manipulation modes, including optothermal pulling, nudging, rotating, swimming, oscillating, and walking, have been demonstrated to enhance the functionalities using simple and low-power optics. We start with an introduction to basic physics involved in heat-mediated optical manipulation, highlighting major working mechanisms underpinning a variety of manipulation techniques. Next, we categorize the heat-mediated optical manipulation techniques based on different working mechanisms and discuss working modes, capabilities, and applications for each technique. We conclude this Review with our outlook on current challenges and future opportunities in this rapidly evolving field of heat-mediated optical manipulation.
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Affiliation(s)
- Zhihan Chen
- Materials Science & Engineering Program, Texas Materials Institute, and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jingang Li
- Materials Science & Engineering Program, Texas Materials Institute, and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Yuebing Zheng
- Materials Science & Engineering Program, Texas Materials Institute, and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
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Pughazhendi A, Chen Z, Wu Z, Li J, Zheng Y. Opto-Thermoelectric Tweezers: Principles and Applications. FRONTIERS IN PHYSICS 2020; 8:580014. [PMID: 38031585 PMCID: PMC10686262 DOI: 10.3389/fphy.2020.580014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Opto-thermoelectric tweezers (OTET), which exploit the thermophoretic matter migration under a light-directed temperature field, present a new platform for manipulating colloidal particles with a wide range of materials, sizes, and shapes. Taking advantage of the entropically favorable photon-phonon conversion in light-absorbing materials and spatial separation of dissolved ions in electrolytes, OTET can manipulate the particles in a low-power and high-resolution fashion. In this mini-review, we summarize the concept, working principles, and applications of OTET. Recent developments of OTET in three-dimensional manipulation and parallel trapping of particles are discussed thoroughly. We further present their initial applications in particle filtration and biological studies. With their future development, OTET are expected to find a wide range of applications in life sciences, nanomedicine, colloidal sciences, photonics, and materials sciences.
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Affiliation(s)
- Agatian Pughazhendi
- Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX, United States
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, United States
| | - Zhihan Chen
- Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX, United States
| | - Zilong Wu
- Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX, United States
| | - Jingang Li
- Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX, United States
| | - Yuebing Zheng
- Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX, United States
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, United States
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