1
|
Pileni MP. Superstructures of water-dispersive hydrophobic nanocrystals: specific properties. MATERIALS HORIZONS 2023; 10:4746-4756. [PMID: 37740284 DOI: 10.1039/d3mh00949a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
Here, we describe water-soluble superstructures of hydrophobic nanocrystals that have been developed in recent years. We will also report on some of their properties which are still in their infancy. One of these structures, called "cluster structures", consists of hydrophobic 3D superlattices of Co or Au nanocrystals, covered with organic molecules acting like parachutes. The magnetic properties of Co "cluster structures" a retained when the superstructures is dispersed in aqueous solution. With Au "cluster structures", the longer wavelength optical scattered spectra are very broad and red-shifted, while at shorter wavelengths the localized surface plasmonic resonance of the scattered nanocrystals is retained. Moreover, the maximum of the long-wavelength signal spectra is linearly dependent on the increase in assembly size. The second superstructure was based on liquid-liquid instabilities favoring the formation of Fe3O4 nanocrystal shells (colloidosomes) filled or unfilled with Au 3D superlattices and also spherical solid crystal structures are called supraballs. Colloidosomes and supraballs in contact with cancer cells increase the density of nanocrystals in lysosomes and near the lysosomal membrane. Importantly, the structure of their organization is maintained in lysosomes for up to 8 days after internalization, while the initially dispersed hydrophilic nanocrystals are randomly aggregated. These two structures act as nanoheaters. Indeed, due to the dilution of the metallic phase, the penetration depth of visible light is much greater than that of homogeneous metallic nanoparticles of similar size. This allows for a high average heat load overall. Thus, the organic matrix acts as an internal reservoir for efficient energy accumulation within a few hundred picoseconds. A similar behavior was observed with colloidosomes, supraballs and "egg" structures, making these superstructures universal nanoheaters, and the same behavior is not observed when they are not dispersed in water (dried and deposited on a substrate). Note that colloidosomes and supraballs trigger local photothermal damage inaccessible to isolated nanocrystals and not predicted by global temperature measurements.
Collapse
Affiliation(s)
- M P Pileni
- Sorbonne Université département de chimie, 4 Place Jussieu, 75005 Paris, France.
| |
Collapse
|
2
|
Choi IS, Park S, Jeon S, Kwon YW, Park R, Taylor RA, Kyhm K, Hong SW. Strain-tunable optical microlens arrays with deformable wrinkles for spatially coordinated image projection on a security substrate. MICROSYSTEMS & NANOENGINEERING 2022; 8:98. [PMID: 36119375 PMCID: PMC9474807 DOI: 10.1038/s41378-022-00399-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 03/03/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
As a new concept in materials design, a variety of strategies have been developed to fabricate optical microlens arrays (MLAs) that enable the miniaturization of optical systems on the micro/nanoscale to improve their characteristic performance with unique optical functionality. In this paper, we introduce a cost-effective and facile fabrication process on a large scale up to ~15 inches via sequential lithographic methods to produce thin and deformable hexagonally arranged MLAs consisting of polydimethylsiloxane (PDMS). Simple employment of oxygen plasma treatment on the prestrained MLAs effectively harnessed the spontaneous formation of highly uniform nanowrinkled structures all over the surface of the elastomeric microlenses. With strain-controlled tunability, unexpected optical diffraction patterns were characterized by the interference combination effect of the microlens and deformable nanowrinkles. Consequently, the hierarchically structured MLAs presented here have the potential to produce desirable spatial arrangements, which may provide easily accessible opportunities to realize microlens-based technology by tunable focal lengths for more advanced micro-optical devices and imaging projection elements on unconventional security substrates.
Collapse
Affiliation(s)
- In Sik Choi
- Department of Cogno-Mechatronics Engineering, Department of Optics and Mechatronics Engineering, Pusan National University, Busan, 46241 Republic of Korea
| | - Seongho Park
- Research Center for Dielectric and Advanced Matter Physics, Pusan National University, Busan, 46241 Republic of Korea
- Department of Physics, University of Oxford, Oxford, OX1 3PU UK
| | - Sangheon Jeon
- Department of Cogno-Mechatronics Engineering, Department of Optics and Mechatronics Engineering, Pusan National University, Busan, 46241 Republic of Korea
| | - Young Woo Kwon
- Department of Nano-Fusion Technology, Pusan National University, Busan, 46241 Republic of Korea
| | - Rowoon Park
- Department of Cogno-Mechatronics Engineering, Department of Optics and Mechatronics Engineering, Pusan National University, Busan, 46241 Republic of Korea
| | | | - Kwangseuk Kyhm
- Department of Cogno-Mechatronics Engineering, Department of Optics and Mechatronics Engineering, Pusan National University, Busan, 46241 Republic of Korea
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering, Department of Optics and Mechatronics Engineering, Pusan National University, Busan, 46241 Republic of Korea
| |
Collapse
|
3
|
Lei P, Li Y, Song X, Hao Y, Deng Z. DNA‐Programmable AgAuS‐Primed Conductive Nanowelding Wires‐Up Wet Colloids. Angew Chem Int Ed Engl 2022; 61:e202203568. [DOI: 10.1002/anie.202203568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Indexed: 12/11/2022]
Affiliation(s)
- Pengcheng Lei
- Center for Bioanalytical Chemistry Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 China
| | - Yanjuan Li
- Center for Bioanalytical Chemistry Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 China
| | - Xiaojun Song
- Center for Bioanalytical Chemistry Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 China
| | - Yan Hao
- 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
| |
Collapse
|
4
|
Lei P, Li Y, Song X, Hao Y, Deng Z. DNA‐Programmable AgAuS‐Primed Conductive Nanowelding Wires up Wet Colloids. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pengcheng Lei
- University of Science and Technology of China Department of Chemistry CHINA
| | - Yanjuan Li
- University of Science and Technology of China Department of Chemistry CHINA
| | - Xiaojun Song
- University of Science and Technology of China Department of Chemistry CHINA
| | - Yan Hao
- University of Science and Technology of China Department of Chemistry CHINA
| | - Zhaoxiang Deng
- University of Science and Technology of China Department of Chemistry 96 Jinzhai Road 230026 Hefei CHINA
| |
Collapse
|
5
|
Khanal BP, Zubarev ER. Self-Assembly of Nanocrystals into Ring-like Superstructures: When Shape, Size, and Material Do Not Matter. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:3896-3906. [PMID: 35298173 DOI: 10.1021/acs.langmuir.2c00153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This manuscript describes a universal method for the spontaneous self-assembly of nanostructures ranging from 2-4 nm spherical particles to ∼440 nm long anisotropic nanorods into ring-like superstructures. The nanostructures composed of Au, Pt, and Pd as surface materials were synthesized in an aqueous cetyltrimethyl ammonium bromide (CTAB) solution. The ligand exchange technique with 4-mercaptophenol was applied to replace CTAB from the surface of nanostructures with a functional thiol. The esterification reaction was carried out to covalently attach carboxy-terminated long-chain polystyrene (PS) molecules to the surface of nanostructures. The high grafting density of PS chains around nanocrystals made them highly soluble in a wide range of organic solvents. When a drop of nanostructure solution in a volatile nonpolar solvent was dried on a solid surface, the nanostructures spontaneously arranged themselves in the form of ring-like assemblies. The condensation of microscopic water droplets from the atmosphere on the surface of an evaporating solvent creates templates for the self-assembly of nanostructures into rings. We demonstrate that this self-assembly method is highly universal and can be extended to various nanostructures regardless of their shapes, sizes, and surface materials.
Collapse
Affiliation(s)
- Bishnu P Khanal
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Eugene R Zubarev
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| |
Collapse
|
6
|
|
7
|
Bian R, Meng L, Zhang M, Chen L, Liu H. Aligning One-Dimensional Nanomaterials by Solution Processes. ACS OMEGA 2019; 4:1816-1823. [PMID: 31459436 PMCID: PMC6648870 DOI: 10.1021/acsomega.8b02700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 01/09/2019] [Indexed: 05/03/2023]
Abstract
One-dimensional nanomaterials, including both nanowires (NWs) and nanotubes (NTs), have been extensively investigated in the decades because of their unique physicochemical properties. Particularly, aligning NWs/NTs into a network or complex micropatterns has been a key issue for its unique integrated functionalities, which enjoy benefits in versatile applications. So far, solution processes remain the most effective strategy to align NWs/NTs, which also bear advantages of mild operation condition and large-scale production. In this perspective, particular attention is drawn to the currently widely used solution coating approaches for aligning NWs/NTs, including the Langmuir-Blodgett film technique, solution shearing approaches, and methods of tri-phase contact line manipulation. We also proposed several perspectives in this field.
Collapse
|
8
|
Li B, Jiang B, Han W, He M, Li X, Wang W, Hong SW, Byun M, Lin S, Lin Z. Harnessing Colloidal Crack Formation by Flow‐Enabled Self‐Assembly. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700457] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bo Li
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Beibei Jiang
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Wei Han
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Ming He
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Xiao Li
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Wei Wang
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering Department of Optics and Mechatronics Engineering Pusan National University Busan 46241 Republic of Korea
| | - Myunghwan Byun
- Department of Advanced Materials Engineering Keimyung University Daegu 704-701 Republic of Korea
| | - Shaoliang Lin
- School of Materials Science and Engineering East China University of Science and Technology Shanghai 200237 China
| | - Zhiqun Lin
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| |
Collapse
|
9
|
Li B, Jiang B, Han W, He M, Li X, Wang W, Hong SW, Byun M, Lin S, Lin Z. Harnessing Colloidal Crack Formation by Flow-Enabled Self-Assembly. Angew Chem Int Ed Engl 2017; 56:4554-4559. [PMID: 28252248 DOI: 10.1002/anie.201700457] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Indexed: 11/09/2022]
Abstract
Self-assembly of nanomaterials to yield a wide diversity of high-order structures, materials, and devices promises new opportunities for various technological applications. Herein, we report that crack formation can be effectively harnessed by elaborately restricting the drying of colloidal suspension using a flow-enabled self-assembly (FESA) strategy to yield large-area periodic cracks (i.e., microchannels) with tunable spacing. These uniform microchannels can be utilized as a template to guide the assembly of Au nanoparticles, forming intriguing nanoparticle threads. This strategy is simple and convenient. As such, it opens the possibility for large-scale manufacturing of crack-based or crack-derived assemblies and materials for use in optics, electronics, optoelectronics, photonics, magnetic device, nanotechnology, and biotechnology.
Collapse
Affiliation(s)
- Bo Li
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Beibei Jiang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Wei Han
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Ming He
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Xiao Li
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Wei Wang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering, Department of Optics and Mechatronics Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Myunghwan Byun
- Department of Advanced Materials Engineering, Keimyung University, Daegu, 704-701, Republic of Korea
| | - Shaoliang Lin
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhiqun Lin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| |
Collapse
|