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Hemant, Rahman A, Sharma P, Shanavas A, Neelakandan PP. BODIPY directed one-dimensional self-assembly of gold nanorods. NANOSCALE 2024; 16:12127-12133. [PMID: 38832457 DOI: 10.1039/d4nr02161d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
The assembly of anisotropic nanomaterials into ordered structures is challenging. Nevertheless, such self-assembled systems are known to have novel physicochemical properties and the presence of a chromophore within the nanoparticle ensemble can enhance the optical properties through plasmon-molecule electronic coupling. Here, we report the end-to-end assembly of gold nanorods into micrometer-long chains using a linear diamino BODIPY derivative. The preferential binding affinity of the amino group and the steric bulkiness of BODIPY directed the longitudinal assembly of gold nanorods. As a result of the linear assembly, the BODIPY chromophores positioned themselves in the plasmonic hotspots, which resulted in efficient plasmon-molecule coupling, thereby imparting photothermal properties to the assembled nanorods. This work thus demonstrates a new approach for the linear assembly of gold nanorods resulting in a plasmon-molecule coupled system, and the synergy between self-assembly and electronic coupling resulted in an efficient system having potential biomedical applications.
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Affiliation(s)
- Hemant
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Atikur Rahman
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Priyanka Sharma
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Asifkhan Shanavas
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Prakash P Neelakandan
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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2
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Cai YY, Choi YC, Kagan CR. Chemical and Physical Properties of Photonic Noble-Metal Nanomaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2108104. [PMID: 34897837 DOI: 10.1002/adma.202108104] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/15/2021] [Indexed: 06/14/2023]
Abstract
Colloidal noble metal nanoparticles (NPs) are composed of metal cores and organic or inorganic ligand shells. These NPs support size- and shape-dependent plasmonic resonances. They can be assembled from dispersions into artificial metamolecules which have collective plasmonic resonances originating from coupled bright and dark optical electric and magnetic modes that form depending on the size and shape of the constituent NPs and their number, arrangement, and interparticle distance. NPs can also be assembled into extended 2D and 3D metamaterials that are glassy thin films or ordered thin films or crystals, also known as superlattices and supercrystals. The metamaterials have tunable optical properties that depend on the size, shape, and composition of the NPs, and on the number of NP layers and their interparticle distance. Interestingly, strong light-matter interactions in superlattices form plasmon polaritons. Tunable interparticle distances allow designer materials with dielectric functions tailorable from that characteristic of an insulator to that of a metal, and serve as strong optical absorbers or scatterers, respectively. In combination with lithography techniques, these extended assemblies can be patterned to create subwavelength NP superstructures and form large-area 2D and 3D metamaterials that manipulate the amplitude, phase, and polarization of transmitted or reflected light.
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Affiliation(s)
- Yi-Yu Cai
- Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Yun Chang Choi
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Cherie R Kagan
- Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
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3
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Piotrowski M, Ge Z, Han X, Wang Y, Bandela AK, Thumu U. A facile post-assembly approach for the fabrication of non-close-packed gold nanocrystal arrays from binary nanocrystal superlattices. NANOSCALE 2023; 15:5188-5192. [PMID: 36861287 DOI: 10.1039/d2nr06653j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Here, we demonstrate a novel approach for fabricating non-close-packed gold nanocrystal arrays using facile one-step post-modification of a Cs4PbBr6-Au binary nanocrystal superlattice by electron beam etching of the perovskite phase. The proposed methodology can serve as a promising approach for the scalable preparation of a vast library of non-close-packed nanoparticulate superstructures with various morphologies composed of numerous colloidal nanocrystals.
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Affiliation(s)
- Marek Piotrowski
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Zhongsheng Ge
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Xiao Han
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Yixi Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Anil Kumar Bandela
- Department of Chemistry, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Udayabhaskararao Thumu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China.
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4
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Wang L, Feng Y, Li Z, Liu G. Nanoscale thermoplasmonic welding. iScience 2022; 25:104422. [PMID: 35663015 PMCID: PMC9156941 DOI: 10.1016/j.isci.2022.104422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Establishing direct, close contact between individual nano-objects is crucial to fabricating hierarchical and multifunctional nanostructures. Nanowelding is a technical prerequisite for successfully manufacturing such structures. In this paper, we review the nanoscale thermoplasmonic welding with a focus on its physical mechanisms, key influencing factor, and emerging applications. The basic mechanisms are firstly described from the photothermal conversion to self-limited heating physics. Key aspects related to the welding process including material scrutinization, nanoparticle geometric and spatial configuration, heating scheme and performance characterization are then discussed in terms of the distinctive properties of plasmonic welding. Based on the characteristics of high precision and flexible platform of thermoplasmonic welding, the potential applications are further highlighted from electronics and optics to additive manufacturing. Finally, the future challenges and prospects are outlined for future prospects of this dynamic field. This work summarizes these innovative concepts and works on thermoplasmonic welding, which is significant to establish a common link between nanoscale welding and additive manufacturing communities.
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Affiliation(s)
- Lin Wang
- Beijing Key Laboratory of Multiphase Flow and Heat Transfer for Low Grade Energy Utilization, North China Electric Power University, Beijing 102206, China
| | - Yijun Feng
- Beijing Key Laboratory of Multiphase Flow and Heat Transfer for Low Grade Energy Utilization, North China Electric Power University, Beijing 102206, China
| | - Ze Li
- Beijing Key Laboratory of Multiphase Flow and Heat Transfer for Low Grade Energy Utilization, North China Electric Power University, Beijing 102206, China
| | - Guohua Liu
- Beijing Key Laboratory of Multiphase Flow and Heat Transfer for Low Grade Energy Utilization, North China Electric Power University, Beijing 102206, China
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5
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Ganguli S, Sekretareva A. Role of an Inert Electrode Support in Plasmonic Electrocatalysis. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sagar Ganguli
- Department of Chemistry, Ångström Laboratory, Molecular Biomimetics, Uppsala University, 75120 Uppsala, Sweden
| | - Alina Sekretareva
- Department of Chemistry, Ångström Laboratory, Molecular Biomimetics, Uppsala University, 75120 Uppsala, Sweden
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6
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Bhat SA, Rao DSS, Prasad SK, Yelamaggad CV. Chiral plasmonic liquid crystal gold nanoparticles: self-assembly into a circular dichroism responsive helical lamellar superstructure. NANOSCALE ADVANCES 2021; 3:2269-2279. [PMID: 36133755 PMCID: PMC9419753 DOI: 10.1039/d0na01070g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/19/2021] [Indexed: 05/09/2023]
Abstract
Owing to their proven and promising potential in various technological endeavors ranging from catalysis and sensing to invisibility cloaks made from metamaterials, chiral plasmonic superstructures resulting from the directed self-assembly of optically active metal nanoparticles (MNPs) have been pursued intensively in recent years. Several strategic efforts have emerged especially to accomplish advanced nanomaterials assembling into liquid crystalline (LC) helical structures, where MNPs are regularly packed in fluid/frozen arrays/layers or wires (columns). While the helical fluid columnar arrays (molecular wires) showing circular dichroism (CD) have been realized, the discovery of fluid chiral lamellar ordering, where the dielectric and conducting regimes are arranged alternatively, has hitherto remained highly elusive. Herein we report the first examples of monodisperse LC-gold NPs (LC-GNPs) self-assembling into a fluid/frozen lamellar structure exhibiting CD activity. Notably, these new, exceptional LC-GNPs have been realized by simple, hassle-free protocols that involve the room temperature addition of LC dimer-like arylamines to Au(iii), where the amines not only reduce Au(iii) to Au(0) but also bind strongly to the central GNP scaffold. Their molecular structure, mesomorphism, and ability to interact with circularly polarized light have been evidenced unambiguously and could play an important role in realizing metamaterials in the visible region.
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Affiliation(s)
- Sachin A Bhat
- Centre for Nano and Soft Matter Sciences (CeNS) P. B. No. 1329, Prof. U. R. Rao Road, Jalahalli Bengaluru 560012 India
- Department of Chemistry, Mangalore University Mangalagangotri 574 199 India
| | - D S Shankar Rao
- Centre for Nano and Soft Matter Sciences (CeNS) P. B. No. 1329, Prof. U. R. Rao Road, Jalahalli Bengaluru 560012 India
| | - S Krishna Prasad
- Centre for Nano and Soft Matter Sciences (CeNS) P. B. No. 1329, Prof. U. R. Rao Road, Jalahalli Bengaluru 560012 India
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7
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On the Effect of Modified Carbohydrates on the Size and Shape of Gold and Silver Nanostructures. NANOMATERIALS 2020; 10:nano10071417. [PMID: 32708064 PMCID: PMC7407669 DOI: 10.3390/nano10071417] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 12/13/2022]
Abstract
Gold (Au) and silver (Ag) nanostructures have widespread utilization from biomedicine to materials science. Therefore, their synthesis with control of their morphology and surface chemistry have been among the hot topics over the last decades. Here, we introduce a new approach relying on sugar derivatives that work as reducing, stabilizing, and capping agents in the synthesis of Au and Ag nanostructures. These sugar derivatives are utilized alone and as mixture, resulting in spherical, spheroid, trigonal, polygonic, and star-like morphologies. The synthesis approach was further tested in the presence of acetate and dimethylamine as size- and shape-directing agents. With the use of transmission electron microscopy (TEM), selected area electron diffraction (SAED), x-ray diffraction (XRD), scanning electron microscopy (SEM), and ultraviolet-visible (UV-vis) absorption spectroscopy techniques, the particle size, shape, assembly, aggregation, and film formation characteristics were evaluated. NPs’ attributes were shown to be tunable by manipulating the sugar ligand selection and sugar ligand/metal-ion ratio. For instance, with an imine side group and changing the sugar moiety from cellobiose to lactose, the morphology of the Ag nanoparticles (NPs) transformed from well dispersed cubic to rough and aggregated. The introduction of acetate and dimethylamine further extended the growth pattern and morphological properties of these NPs. As examples, L5 AS, G5AS, and S5AS ligands formed spherical or sheet-like structures when used alone, which upon the use of these additives transformed into larger multicore and rough NPs, revealing their significant effect on the NP morphology. Selected samples were tested for their stability against protein corona formation and ionic strength, where a high chemical stability and resistance to protein coating were observed. The findings show a promising, benign approach for the synthesis of shape- and size-directed Au and Ag nanostructures, along with a selection of the chemistry of carbohydrate-derivatives that can open new windows for their applications.
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8
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Feng J, Xu Y, Huang W, Kong H, Li Y, Cheng H, Li L. A magnetic SERS immunosensor for highly sensitive and selective detection of human carboxylesterase 1 in human serum samples. Anal Chim Acta 2019; 1097:176-185. [PMID: 31910958 DOI: 10.1016/j.aca.2019.11.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 10/30/2019] [Accepted: 11/03/2019] [Indexed: 02/06/2023]
Abstract
Hepatocellular carcinoma (HCC) is a common and lethal cancer. New serum markers for detecting HCC are urgently needed. Human carboxylesterase 1 (hCE1) is an important member of the serine hydrolase superfamily and is closely related to the occurrence of HCC. It can be used as a good serum marker for early diagnosis of HCC. Here, we developed a surface enhanced Raman scattering (SERS)- based magnetic immunosensor that specifically recognizes and detects trace amounts of hCE1 in human serum via a sandwich structure consisting of a SERS tags, magnetic supporting substrates, and target antigen (hCE1). The SERS tags are 4-mercaptobenzoic acid (4-MBA)-labeled AgNPs, and the SERS supporting substrates are composed of a raspberry-like morphology of Fe3O4@SiO2@AgNPs magnetic nanocomposites surface-functionalized with a hCE1 antibody. The prepared SERS magnetic immunosensor exhibits excellent selectivity and extremely high sensitivity for hCE1 detection. The SERS signal and logarithm of hCE1 concentration presented a wide linear response range of 0.1 ng mL-1 to 1.0 mg mL-1, and the detection limit of hCE1 was 0.1 ng mL-1. The results indicate that the immunosensor can be used for the rapid determination of hCE1 in human serum without a complicated sample pre-treatment. Furthermore, the immunosensor has good reproducibility and stability, and has a promising prospect for the quantitative detection of other tumor markers in early clinical diagnosis.
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Affiliation(s)
- Jun Feng
- School of Medicine, Guangxi University of Science and Technology, Liuzhou, 545005, Guangxi, PR China; Provine and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, 530004, Guangxi, PR China
| | - Yajuan Xu
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China; Provine and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, 530004, Guangxi, PR China
| | - Wenyi Huang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China; Provine and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, 530004, Guangxi, PR China
| | - Hongxing Kong
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China; Provine and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, 530004, Guangxi, PR China
| | - Yanqing Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China; Provine and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, 530004, Guangxi, PR China
| | - Hao Cheng
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China; Provine and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, 530004, Guangxi, PR China.
| | - Lijun Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China; Provine and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, 530004, Guangxi, PR China.
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9
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Bali K, Dúzs B, Sáfrán G, Pécz B, Mészáros R. Effect of Added Surfactant on Poly(Ethylenimine)-Assisted Gold Nanoparticle Formation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:14007-14016. [PMID: 31589455 DOI: 10.1021/acs.langmuir.9b03055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In a variety of applications, functionalization of gold nanoparticles is needed to ensure adequate surface charge and hydrophobicity for their biodistribution, interparticle interactions, or self-organization. In the present paper, we provide an economic way for the synthesis of hydrophobized poly(ethylenimine) (PEI) capped gold nanoparticles at room temperature using sodium dodecyl sulfate (SDS). The approach is based on the controlled competition between the nucleation of gold nanophases within the PEI molecules and the SDS binding onto their amine groups. This can be achieved via utilizing the strongly irreversible nature of the association between the oppositely charged polymer and that of the surfactant molecules. Specifically, by varying the order and timing of SDS addition during the process of gold nanoassembly formation, the size distribution, the morphology, and the local hydrophobic environment of the produced Au-PEI/SDS nanohybrids can be tuned even at one composition of the system. The results may be further exploited for the preparation of noble metal nanoassemblies with controlled hydrophobicity and charge.
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Affiliation(s)
- Krisztina Bali
- Laboratory of Interfaces and Nanosized Systems, Institute of Chemistry , ELTE Eötvös Loránd University , H-1117 Budapest , Pázmány Péter sétány 1/A , Hungary
| | - Brigitta Dúzs
- Laboratory of Interfaces and Nanosized Systems, Institute of Chemistry , ELTE Eötvös Loránd University , H-1117 Budapest , Pázmány Péter sétány 1/A , Hungary
| | - György Sáfrán
- Institute of Technical Physics and Materials Sciences, Centre for Energy Research, H.A.S. , H-1121 Budapest , Konkoly Thege M. út 29-33 , Hungary
| | - Béla Pécz
- Institute of Technical Physics and Materials Sciences, Centre for Energy Research, H.A.S. , H-1121 Budapest , Konkoly Thege M. út 29-33 , Hungary
| | - Róbert Mészáros
- Laboratory of Interfaces and Nanosized Systems, Institute of Chemistry , ELTE Eötvös Loránd University , H-1117 Budapest , Pázmány Péter sétány 1/A , Hungary
- Department of Chemistry , University J. Selyeho , 945 01 Komárno , Slovakia
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10
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Zhang H, Zeng H, Priimagi A, Ikkala O. Programmable responsive hydrogels inspired by classical conditioning algorithm. Nat Commun 2019; 10:3267. [PMID: 31332196 PMCID: PMC6646376 DOI: 10.1038/s41467-019-11260-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 06/26/2019] [Indexed: 01/19/2023] Open
Abstract
Living systems have inspired research on non-biological dynamic materials and systems chemistry to mimic specific complex biological functions. Upon pursuing ever more complex life-inspired non-biological systems, mimicking even the most elementary aspects of learning is a grand challenge. We demonstrate a programmable hydrogel-based model system, whose behaviour is inspired by associative learning, i.e., conditioning, which is among the simplest forms of learning. Algorithmically, associative learning minimally requires responsivity to two different stimuli and a memory element. Herein, nanoparticles form the memory element, where a photoacid-driven pH-change leads to their chain-like assembly with a modified spectral behaviour. On associating selected light irradiation with heating, the gel starts to melt upon the irradiation, originally a neutral stimulus. A logic diagram describes such an evolution of the material response. Coupled chemical reactions drive the system out-of-equilibrium, allowing forgetting and memory recovery. The findings encourage to search non-biological materials towards associative and dynamic properties. Living systems inspired research on systems chemistry to mimic specific complex biological functions, but mimicking even the most elementary aspects of learning is a grand challenge. Here the authors demonstrate a programmable hydrogel-based model system, whose behaviour is inspired by associative learning.
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Sugikawa K, Matsuo K, Ikeda A. Suppression of Gold Nanoparticle Aggregation on Lipid Membranes Using Nanosized Liposomes To Increase Steric Hindrance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:229-236. [PMID: 30517012 DOI: 10.1021/acs.langmuir.8b03550] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Suppression of nanoparticle aggregation on a plasma membrane surface may lead to better understanding of the causes of various diseases and development of new drug delivery systems. In this study, we inhibited the aggregation of gold nanoparticles on a lipid membrane in a fluidic liquid-crystalline phase by using nanosized liposomes to increase steric hindrance. Adsorption of liposomes on gold nanoparticles was confirmed by transmission electron microscopy and ultraviolet-visible absorption spectroscopy. The ability of the liposomes to suppress gold nanoparticle aggregation strongly depended on the concentration of liposomes providing steric hindrance. The fluidity or rigidity of the liposome membrane also strongly influenced the ability of the liposomes to suppress gold nanoparticle aggregation.
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Affiliation(s)
- Kouta Sugikawa
- Department of Applied Chemistry, Graduate School of Engineering , Hiroshima University , Higashi-Hiroshima 739-8527 , Japan
| | - Kotaro Matsuo
- Department of Applied Chemistry, Graduate School of Engineering , Hiroshima University , Higashi-Hiroshima 739-8527 , Japan
| | - Atsushi Ikeda
- Department of Applied Chemistry, Graduate School of Engineering , Hiroshima University , Higashi-Hiroshima 739-8527 , Japan
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Wei J, Mitomo H, Tani T, Matsuo Y, Niikura K, Naya M, Ijiro K. Size-Defined Cracked Vesicle Formation via Self-Assembly of Gold Nanoparticles Covered with Carboxylic Acid-Terminated Surface Ligands. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:12445-12451. [PMID: 30230846 DOI: 10.1021/acs.langmuir.8b02966] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The self-assembly of gold nanoparticles (GNPs) into a defined structure, particularly hollow capsule structures, provides great potential for applications in materials science and medicine. However, the complexity of the parameters for the preparation of those structures through self-assembly has limited access to critical mechanistic questions. With this in mind, we have studied GNP vesicle (GNV) formation through self-assembly by the surface modification of GNPs with low-molecular-weight ligands. Here, we successfully prepared GNVs composed of GNPs with a diameter of 30 nm by surface modification with carboxylic acid-terminated fluorinated oligo(ethylene glycol) ligands (CFLs). As the carboxylic acid has two states (protonated and deprotonated), the balance of the attraction and repulsion between GNPs covered with CFLs is tunable. Sodium carboxylate-terminated fluorinated oligo(ethylene glycol) ligands (SCFLs) provided smaller GNVs than did CFLs at 0.8 × 1011 NPs/mL. Time-course study revealed that CFL-covered GNPs quickly form small aggregates and gradually grow to larger GNVs (ca. 200 nm), but no gradual growth was observed for SCFL-covered GNPs. This result indicated that the electrostatic repulsion inhibits fusion of the small GNVs. The size of the GNVs formed with the aid of CFLs was independent of the initial GNP concentration, but the extinction spectra were concentration-dependent. Electron microscopy imaging and simulations supported the defect formation in the assemblies. These results provided new insights into the vesicle formation mechanism.
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Affiliation(s)
- Jinjian Wei
- Graduate School of Chemical Sciences and Engineering , Hokkaido University , Kita 13, Nishi 8 , Kita-Ku, Sapporo 060-8628 , Japan
| | - Hideyuki Mitomo
- Research Institute for Electronic Science , Hokkaido University , Kita 21, Nishi 10 , Kita-Ku, Sapporo 001-0021 , Japan
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education , Hokkaido University , Kita 21, Nishi 11 , Kita-Ku, Sapporo 001-0021 , Japan
| | - Takeharu Tani
- FUJIFILM Corporation , Ushijima , Ashigarakami-gun, Kaisei-Machi , Kanagawa 258-8577 , Japan
| | - Yasutaka Matsuo
- Research Institute for Electronic Science , Hokkaido University , Kita 21, Nishi 10 , Kita-Ku, Sapporo 001-0021 , Japan
| | - Kenichi Niikura
- Research Institute for Electronic Science , Hokkaido University , Kita 21, Nishi 10 , Kita-Ku, Sapporo 001-0021 , Japan
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education , Hokkaido University , Kita 21, Nishi 11 , Kita-Ku, Sapporo 001-0021 , Japan
| | - Masayuki Naya
- FUJIFILM Corporation , Ushijima , Ashigarakami-gun, Kaisei-Machi , Kanagawa 258-8577 , Japan
| | - Kuniharu Ijiro
- Research Institute for Electronic Science , Hokkaido University , Kita 21, Nishi 10 , Kita-Ku, Sapporo 001-0021 , Japan
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education , Hokkaido University , Kita 21, Nishi 11 , Kita-Ku, Sapporo 001-0021 , Japan
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13
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Mei R, Wang Y, Liu W, Chen L. Lipid Bilayer-Enabled Synthesis of Waxberry-like Core-Fluidic Satellite Nanoparticles: Toward Ultrasensitive Surface-Enhanced Raman Scattering Tags for Bioimaging. ACS APPLIED MATERIALS & INTERFACES 2018; 10:23605-23616. [PMID: 29938498 DOI: 10.1021/acsami.8b06253] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Herein, we presented waxberry-like core-satellite (C-S) nanoparticles (NPs) prepared by an in situ growth of satellite gold NPs on spherical phospholipid bilayer-coated gold cores. The fluidic lipid bilayer cross-linker was reported for the first time, which imparted several novel morphological and optical properties to the C-S NPs. First, it regulated the anisotropic growth of the satellite NPs into vertically oriented nanorods on the core NP surface. Thus, an interesting waxberry-like nanostructure could be obtained, which was different from the conventional raspberry-like C-S structures decorated with spherical satellite NPs. Second, the satellite NPs were "soft-landed" on the lipid bilayer and could move on the core NP surface under certain conditions. The movement induced tunable plasmonic features in the C-S NPs. Furthermore, the fluidic lipid bilayer was capable of not only holding an abundance of reporter molecules but also delivering them to the hotspots at the junctions between the core and satellite NPs, which made the C-S NPs an excellent candidate for preparing ultrasensitive surface-enhanced Raman scattering (SERS) tags. The bioimaging capabilities of the C-S NP-based SERS tags were successfully demonstrated in living cells and mice. The developed SERS tags hold great potential for bioanalysis and medical diagnostics.
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Affiliation(s)
- Rongchao Mei
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environment Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research , Chinese Academy of Sciences , Yantai 264003 , China
| | - Yunqing Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environment Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research , Chinese Academy of Sciences , Yantai 264003 , China
| | | | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environment Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research , Chinese Academy of Sciences , Yantai 264003 , China
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14
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Liu T, Keiper T, Wang X, Yang G, Hallinan D, Zhao J, Xiong P. Molecular Patterning and Directed Self-Assembly of Gold Nanoparticles on GaAs. ACS APPLIED MATERIALS & INTERFACES 2017; 9:43363-43369. [PMID: 29140682 DOI: 10.1021/acsami.7b14113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The ability to create micro-/nanopatterns of organic self-assembled monolayers (SAMs) on semiconductor surfaces is crucial for fundamental studies and applications in a number of emerging fields in nanoscience. Here, we demonstrate the direct patterning of thiolate SAMs on oxide-free GaAs surface by dip-pen nanolithography (DPN) and microcontact printing (μCP), facilitated by a process of surface etching and passivation of the GaAs. A quantitative analysis on the molecular diffusion on GaAs was conducted by examining the writing of nanoscale dot and line patterns by DPN, which agrees well with surface diffusion models. The functionality of the patterned thiol molecules was demonstrated by directed self-assembly of gold nanoparticles (Au NPs) onto a template of 4-aminothiophenol (ATP) SAM on GaAs. The highly selective assembly of the Au NPs was made evident with atomic force microscopy (AFM) and scanning electron microscopy (SEM). The ability to precisely control the assembly of Au NPs on oxide-free semiconductor surfaces using molecular templates may lead to an efficient bottom-up method for the fabrication of nanoplasmonic structures.
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Affiliation(s)
- Tianhan Liu
- Department of Physics, Florida State University , Tallahassee, Florida 32306, United States
| | - Timothy Keiper
- Department of Physics, Florida State University , Tallahassee, Florida 32306, United States
| | - Xiaolei Wang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences , Beijing 100083, China
| | - Guang Yang
- Department of Chemical and Biomedical Engineering, Florida A&M University-Florida State University College of Engineering , Tallahassee, Florida 32310, United States
| | - Daniel Hallinan
- Department of Chemical and Biomedical Engineering, Florida A&M University-Florida State University College of Engineering , Tallahassee, Florida 32310, United States
| | - Jianhua Zhao
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences , Beijing 100083, China
| | - Peng Xiong
- Department of Physics, Florida State University , Tallahassee, Florida 32306, United States
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15
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Prado AR, Souza DOD, Oliveira JP, Pereira RHA, Guimarães MCC, Nogueira BV, Dixini PV, Ribeiro MRN, Pontes MJ. Probing the Sulfur-Modified Capping Layer of Gold Nanoparticles Using Surface Enhanced Raman Spectroscopy (SERS) Effects. APPLIED SPECTROSCOPY 2017; 71:2670-2680. [PMID: 28714324 DOI: 10.1177/0003702817724180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Gold nanoparticles (AuNP) exhibit particular plasmonic properties when stimulated by visible light, which makes them a promising tool to many applications in sensor technology and biomedical applications, especially when associated to sulfur-based compounds. Sulfur species form a great variety of self-assembled structures that cap AuNP and this interaction rules the optical and plasmonic properties of the system. Here, we report the behavior of citrate-stabilized gold nanospheres in two distinct sulfur colloidal solutions, namely, thiocyanate and sulfide ionic solutions. Citrate-capped gold nanospheres were characterized using ultraviolet-visible (UV-Vis) absorption, transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), and atomic force microscopy (AFM). In the presence of sulfur species, we have observed the formation of NP clusters and chain-like structures, giving rise to surface-enhanced effects. Surface-enhanced Raman spectroscopy (SERS) pointed to a modification in citrate vibrational modes, which suggests substitution of citrate by either thiocyanate or sulfide ions with distinct dynamics, as showed by in situ fluorescence. Moreover, we report the emergence of surface-enhanced infrared absorption (SEIRA) effect, which corroborates SERS conclusions. Further, SEIRA shows a great potential as a tool for specification of sulfur compounds in colloidal solutions, which is particularly useful when dealing with sensor technology.
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Affiliation(s)
- Adilson R Prado
- 1 Instituto Federal do Espírito Santo, Serra-ES, Brazil
- 2 Departamento de Engenharia Elétrica-CTII, Universidade Federal do Espírito Santo, Vitória-ES, Brazil
| | - Danilo Oliveira de Souza
- 2 Departamento de Engenharia Elétrica-CTII, Universidade Federal do Espírito Santo, Vitória-ES, Brazil
| | - Jairo P Oliveira
- 3 Biotechnology, Universidade Federal do Espírito Santo, Vitória-ES, Brazil
| | - Rayssa H A Pereira
- 3 Biotechnology, Universidade Federal do Espírito Santo, Vitória-ES, Brazil
| | | | - Breno V Nogueira
- 3 Biotechnology, Universidade Federal do Espírito Santo, Vitória-ES, Brazil
| | - Pedro V Dixini
- 4 Instituto Federal do Espírito Santo, Aracruz-ES, Brazil
| | - Moisés R N Ribeiro
- 2 Departamento de Engenharia Elétrica-CTII, Universidade Federal do Espírito Santo, Vitória-ES, Brazil
| | - Maria J Pontes
- 2 Departamento de Engenharia Elétrica-CTII, Universidade Federal do Espírito Santo, Vitória-ES, Brazil
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16
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Sugikawa K, Kadota T, Matsuo K, Yasuhara K, Ikeda A. Growth of Anisotropic Gold Nanoparticle Assemblies via Liposome Fusion. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E1317. [PMID: 29149039 PMCID: PMC5706264 DOI: 10.3390/ma10111317] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/14/2017] [Accepted: 11/14/2017] [Indexed: 11/22/2022]
Abstract
Anisotropic assembly of nanoparticles (NPs) has attracted extensive attention because of the potential applications in materials science, biology, and medicine. However, assembly control (e.g., the number of assembled NPs) has not been adequately studied. Here, the growth of anisotropic gold NP assemblies on a liposome surface is reported. Citrate-coated gold NPs adsorbed on liposome surfaces were assembled in one dimension at temperatures above the phase transition temperature of the lipid bilayer. Growth of the anisotropic assemblies depended on the heating time. Absorption spectroscopy and transmission electron microscopy revealed that the gradual growth was attributed to liposome fusion, which was strongly affected by the size of the gold NPs. This method enabled us to precisely control the number of NPs in each anisotropic assembly. These results will enable the fabrication of functional materials based on NP assemblies and enable investigations of cell functions and disease causality.
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Affiliation(s)
- Kouta Sugikawa
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
| | - Tatsuya Kadota
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
| | - Kotaro Matsuo
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
| | - Kazuma Yasuhara
- Graduate School of Materials Science, Nara Institute of Science and Technology, Nara 630-0192, Japan.
| | - Atsushi Ikeda
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
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17
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Jang S, Kim K, Jeon J, Kang D, Sohn BH. Supracolloidal chains of patchy micelles of diblock copolymers with in situ synthesized nanoparticles. SOFT MATTER 2017; 13:6756-6760. [PMID: 28937168 DOI: 10.1039/c7sm01497j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Supracolloidal chains of diblock copolymer micelles were functionalized with gold and silver nanoparticles (NPs). Both NPs were independently synthesized in situ in the core of spherical micelles which were then converted to patchy micelles. With these patchy micelles as colloidal monomers, supracolloidal chains were polymerized by combining the patches of neighboring micelles. Since all micelles contained NPs, NPs were incorporated in every repeat unit of chains. In addition, a single gold NP was synthesized in the micellar core in contrast to several silver NPs so that we differentiated the chains with Au NPs from those with Ag NPs by the number of NPs in the repeat unit as well as by plasmonic bands in UV-Vis spectra.
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Affiliation(s)
- Sukwoo Jang
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
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18
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Frydendahl C, Repän T, Geisler M, Novikov SM, Beermann J, Lavrinenko AV, Xiao S, Bozhevolnyi SI, Mortensen NA, Stenger N. Optical reconfiguration and polarization control in semi-continuous gold films close to the percolation threshold. NANOSCALE 2017; 9:12014-12024. [PMID: 28795742 DOI: 10.1039/c7nr03378h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Controlling and confining light by exciting plasmons in resonant metallic nanostructures is an essential aspect of many new emerging optical technologies. Here we explore the possibility of controllably reconfiguring the intrinsic optical properties of semi-continuous gold films, by inducing permanent morphological changes with a femtosecond (fs)-pulsed laser above a critical power. Optical transmission spectroscopy measurements show a correlation between the spectra of the morphologically modified films and the wavelength, polarization, and the intensity of the laser used for alteration. In order to understand the modifications induced by the laser writing, we explore the near-field properties of these films with electron energy-loss spectroscopy (EELS). A comparison between our experimental data and full-wave simulations on the exact film morphologies hints toward a restructuring of the intrinsic plasmonic eigenmodes of the metallic film by photothermal effects. We explain these optical changes with a simple model and demonstrate experimentally that laser writing can be used to controllably modify the optical properties of these semi-continuous films. These metal films offer an easy-to-fabricate and scalable platform for technological applications such as molecular sensing and ultra-dense data storage.
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Affiliation(s)
- Christian Frydendahl
- Department of Photonics Engineering, Technical University of Denmark, Ørsteds Plads 343, DK-2800 Kongens Lyngby, Denmark.
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19
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Hughes RA, Menumerov E, Neretina S. When lithography meets self-assembly: a review of recent advances in the directed assembly of complex metal nanostructures on planar and textured surfaces. NANOTECHNOLOGY 2017; 28:282002. [PMID: 28590253 DOI: 10.1088/1361-6528/aa77ce] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
One of the foremost challenges in nanofabrication is the establishment of a processing science that integrates wafer-based materials, techniques, and devices with the extraordinary physicochemical properties accessible when materials are reduced to nanoscale dimensions. Such a merger would allow for exacting controls on nanostructure positioning, promote cooperative phenomenon between adjacent nanostructures and/or substrate materials, and allow for electrical contact to individual or groups of nanostructures. With neither self-assembly nor top-down lithographic processes being able to adequately meet this challenge, advancements have often relied on a hybrid strategy that utilizes lithographically-defined features to direct the assembly of nanostructures into organized patterns. While these so-called directed assembly techniques have proven viable, much of this effort has focused on the assembly of periodic arrays of spherical or near-spherical nanostructures comprised of a single element. Work directed toward the fabrication of more complex nanostructures, while still at a nascent stage, has nevertheless demonstrated the possibility of forming arrays of nanocubes, nanorods, nanoprisms, nanoshells, nanocages, nanoframes, core-shell structures, Janus structures, and various alloys on the substrate surface. In this topical review, we describe the progress made in the directed assembly of periodic arrays of these complex metal nanostructures on planar and textured substrates. The review is divided into three broad strategies reliant on: (i) the deterministic positioning of colloidal structures, (ii) the reorganization of deposited metal films at elevated temperatures, and (iii) liquid-phase chemistry practiced directly on the substrate surface. These strategies collectively utilize a broad range of techniques including capillary assembly, microcontact printing, chemical surface modulation, templated dewetting, nanoimprint lithography, and dip-pen nanolithography and employ a wide scope of chemical processes including redox reactions, alloying, dealloying, phase separation, galvanic replacement, preferential etching, template-mediated reactions, and facet-selective capping agents. Taken together, they highlight the diverse toolset available when fabricating organized surfaces of substrate-supported nanostructures.
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Affiliation(s)
- Robert A Hughes
- College of Engineering, University of Notre Dame, Notre Dame, IN 46556, United States of America
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20
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Moaseri E, Stover RJ, Changalvaie B, Cepeda AJ, Truskett TM, Sokolov KV, Johnston KP. Control of Primary Particle Spacing in Gold Nanoparticle Clusters for Both High NIR Extinction and Full Reversibility. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:3413-3426. [PMID: 28277669 DOI: 10.1021/acs.langmuir.6b04453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Reversible NIR-active nanoparticle clusters with controlled size from 20 to 100 nm were assembled from 5 nm gold nanoparticles (Au NP), with either citrate (CIT) or various binary ligands on the surface, by tuning the electrostatic repulsion and the hydrogen bonding via pH. The nanoclusters were bound together by vdW forces between the cores and the hydrogen bonds between the surface ligands and dissociated to primary nanoparticles over a period of 20 days at pH 5 and at pH 7. When high levels of citrate ligands were used on the primary particle surfaces, the large particle spacings in the nanoclusters led to only modest NIR extinction. However, a NIR extinction (E1000/525) ratio of up to ∼0.4 was obtained for nanoclusters with binary ligand mixtures composed of citrate and either cysteine (CYS), glutathione (GSH), or thioctic acid zwitterion (TAZ) while maintaining full reversibility to primary particles. The optimum ligand ratio for both an E1000/525 of ∼0.4 and full reversibility decreased with increasing length of the secondary ligand (1.5/1 for CYS/CIT, 0.75/1 for GSH/CIT, and 0.5/1 for TAZ/CIT) because a longer secondary ligand maintains a sufficient interparticle spacing required for dissociation more effectively. Interestingly, the zeta potential and the first-order rate constant for nanocluster dissociation were similar for all three systems at the optimum ligand ratios. After incubation in 10 mM GSH solution (intracellular concentration), only the TAZ/CIT primary nanoparticles were resistant to protein opsonization in 100% fetal bovine serum, as the bidentate binding and zwitterion tips of TAZ resisted GSH exchange and protein opsonization, respectively.
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Affiliation(s)
| | | | | | | | | | - Konstantin V Sokolov
- Department of Imaging Physics, MD Anderson Cancer Center , Houston, Texas 77030, United States
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21
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Lemineur JF, Ritcey AM. Controlled Growth of Gold Nanoparticles Preorganized in Langmuir-Blodgett Monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:12056-12066. [PMID: 27788007 DOI: 10.1021/acs.langmuir.6b02595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A method is described for the in situ growth of substrate-supported organized gold nanoparticles. Upon exposure to an aqueous solution of a gold salt and a mild reducing agent, the particle size can be significantly increased without any loss of superstructure organization. Furthermore, no secondary nucleation is observed. The surface-supported regrowth procedure can be combined with the Langmuir-Blodgett technique to produce a rich library of plasmonic nanoparticle assemblies. Controlled particle regrowth plays a crucial role in this assembly method because only relatively small metallic nanoparticles can be directly dispersed in polymeric Langmuir-Blodgett films. The versatility of the method is demonstrated through the fabrication of several specific nanoparticle structures, including contiguous plasmonic rings, core-satellite structures, and necklace assemblies. Plasmon extinction spectra are presented for the various nanoparticle superstructures and illustrate the importance of controlling both particle size and assembly architecture in achieving targeted optical properties. The reported approach constitutes a viable bottom-up assembly route for the fabrication of surface-supported nanoparticle superstructures for plasmonic applications.
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Affiliation(s)
- Jean-François Lemineur
- Department of Chemistry and CERMA, Université Laval Pavillon Alexandre-Vachon, 1045 Avenue de la Médecine, Québec, Québec G1 V 0A6, Canada
| | - Anna M Ritcey
- Department of Chemistry and CERMA, Université Laval Pavillon Alexandre-Vachon, 1045 Avenue de la Médecine, Québec, Québec G1 V 0A6, Canada
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22
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Xia H, Xiahou Y, Zhang P, Ding W, Wang D. Revitalizing the Frens Method To Synthesize Uniform, Quasi-Spherical Gold Nanoparticles with Deliberately Regulated Sizes from 2 to 330 nm. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:5870-80. [PMID: 27263542 DOI: 10.1021/acs.langmuir.6b01312] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this work, we have successfully developed a new and consistent model to describe the growth of gold nanoparticles (Au NPs) via citrate reduction of auric acid (HAuCl4) by carefully assessing the temporal evolution of the NP sizes and surface charges by means of dynamic light scattering (DLS) and zeta-potential measurements. The new model demonstrates that the nucleation and growth of the Au NPs occur exclusively in the particles of the complexes of Au(+) ions and sodium acetone dicarboxylate (SAD) derived from the citrate/HAuCl4 redox reaction, which proceeds as described by the classic LaMer model. Concomitant with the Au NP growing therein, the Au(+)/SAD complex particles undergo reversible agglomeration with the reaction time, which may result in an abnormal color change of the reaction media but have little impact on the Au NP growth. Built on the new model, we have successfully produced monodisperse quasi-spherical Au NPs with sizes precisely regulated from 2 to 330 nm via simple citrate reduction in a one-pot manner. To date, highly uniform Au NPs with sizes spanning such a large size range could not be formed otherwise even via deliberately controlled seeded growth methods.
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Affiliation(s)
- Haibing Xia
- State Key Laboratory of Crystal Materials, Shandong University , Jinan 250100, P. R. China
| | - Yujiao Xiahou
- State Key Laboratory of Crystal Materials, Shandong University , Jinan 250100, P. R. China
| | - Peina Zhang
- State Key Laboratory of Crystal Materials, Shandong University , Jinan 250100, P. R. China
| | - Wenchao Ding
- State Key Laboratory of Crystal Materials, Shandong University , Jinan 250100, P. R. China
| | - Dayang Wang
- Department of Civil, Environmental and Chemical Engineering, School of Engineering, RMIT University , Melbourne, Victoria 3001, Australia
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23
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Sugikawa K, Kadota T, Yasuhara K, Ikeda A. Anisotropic Self-Assembly of Citrate-Coated Gold Nanoparticles on Fluidic Liposomes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kouta Sugikawa
- Graduate School of Engineering; Hiroshima University; Higashi-Hiroshima 739-8527 Japan
| | - Tatsuya Kadota
- Graduate School of Engineering; Hiroshima University; Higashi-Hiroshima 739-8527 Japan
| | - Kazuma Yasuhara
- Graduate School of Materials Science; Nara Institute of Science and Technology; Nara 630-0192 Japan
| | - Atsushi Ikeda
- Graduate School of Engineering; Hiroshima University; Higashi-Hiroshima 739-8527 Japan
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24
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Jee AY, Lou K, Jang HS, Nagamanasa KH, Granick S. Nanoparticle puzzles and research opportunities that go beyond state of the art. Faraday Discuss 2016; 186:11-5. [PMID: 26948241 DOI: 10.1039/c6fd00024j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present an overview of current progress and research challenges in the field of nanoparticle assembly, touching on the following topics: (1) historical perspective; (2) consideration of what is a nanoparticle; (3) contrast between nanoparticle self-assembly and top-down construction; (4) opportunities for nanoparticles with more intelligent sub-structures; (5) opportunities for nanoparticle systems cued to interact subtly in space and time. In this personal and subjective account, certain holy grails for nanoparticle science and technology are identified.
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Affiliation(s)
- Ah-Young Jee
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea.
| | - Kai Lou
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea.
| | - Hyun-Sook Jang
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea.
| | - K Hima Nagamanasa
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea.
| | - Steve Granick
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea. and Department of Chemistry, UNIST, Ulsan 44919, Republic of Korea
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25
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Sugikawa K, Kadota T, Yasuhara K, Ikeda A. Anisotropic Self-Assembly of Citrate-Coated Gold Nanoparticles on Fluidic Liposomes. Angew Chem Int Ed Engl 2016; 55:4059-63. [DOI: 10.1002/anie.201511785] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Revised: 01/26/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Kouta Sugikawa
- Graduate School of Engineering; Hiroshima University; Higashi-Hiroshima 739-8527 Japan
| | - Tatsuya Kadota
- Graduate School of Engineering; Hiroshima University; Higashi-Hiroshima 739-8527 Japan
| | - Kazuma Yasuhara
- Graduate School of Materials Science; Nara Institute of Science and Technology; Nara 630-0192 Japan
| | - Atsushi Ikeda
- Graduate School of Engineering; Hiroshima University; Higashi-Hiroshima 739-8527 Japan
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26
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Chae S, Lee S, Kim K, Jang SW, Sohn BH. Fluorescent supracolloidal polymer chains with quantum dots. Chem Commun (Camb) 2016; 52:6475-8. [DOI: 10.1039/c6cc01218c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We demonstrate the fabrication of fluorescent supracolloidal chains functionalized with quantum dots, which were polymerized from patched micelles of diblock copolymers by adjusting the polarity of the solvent. Supracolloidal random and block chains with green- and red-emitting quantum dots were also synthesized.
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Affiliation(s)
- Seungyong Chae
- Department of Chemistry
- Seoul National University
- Seoul
- Korea
| | - Sanghwa Lee
- Department of Chemistry
- Seoul National University
- Seoul
- Korea
| | - Kyungtae Kim
- Department of Chemistry
- Seoul National University
- Seoul
- Korea
| | - Suk Woo Jang
- Department of Chemistry
- Seoul National University
- Seoul
- Korea
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27
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Liu Y, He J, Yang K, Yi C, Liu Y, Nie L, Khashab NM, Chen X, Nie Z. Folding Up of Gold Nanoparticle Strings into Plasmonic Vesicles for Enhanced Photoacoustic Imaging. Angew Chem Int Ed Engl 2015; 54:15809-12. [PMID: 26555318 PMCID: PMC4715700 DOI: 10.1002/anie.201508616] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Indexed: 12/25/2022]
Abstract
The stepwise self-assembly of hollow plasmonic vesicles with vesicular membranes containing strings of gold nanoparticles (NPs) is reported. The formation of chain vesicles can be controlled by tuning the density of the polymer ligands on the surface of the gold NPs. The strong absorption of the chain vesicles in the near-infrared (NIR) region leads to a much higher efficiency in photoacoustic (PA) imaging than for non-chain vesicles. The chain vesicles were further employed for the encapsulation of drugs and the NIR light triggered release of payloads. This work not only offers a new platform for controlling the hierarchical self-assembly of NPs, but also demonstrates that the physical properties of the materials can be tailored by controlling the spatial arrangement of NPs within assemblies to achieve a better performance in biomedical applications.
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Affiliation(s)
- Yijing Liu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA)
| | - Jie He
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA)
| | - Kuikun Yang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA)
| | - Chenglin Yi
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA)
| | - Yi Liu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA)
| | - Liming Nie
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (USA)
| | - Niveen M Khashab
- Smart Hybrid Materials (SHMs) Lab, Department of Chemical Sciences and Engineering, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900 (Kingdom of Saudi Arabia)
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (USA).
| | - Zhihong Nie
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA).
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28
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Liu Y, He J, Yang K, Yi C, Liu Y, Nie L, Khashab NM, Chen X, Nie Z. Folding Up of Gold Nanoparticle Strings into Plasmonic Vesicles for Enhanced Photoacoustic Imaging. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508616] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yijing Liu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA)
| | - Jie He
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA)
| | - Kuikun Yang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA)
| | - Chenglin Yi
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA)
| | - Yi Liu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA)
| | - Liming Nie
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (USA)
| | - Niveen M. Khashab
- Smart Hybrid Materials (SHMs) Lab, Department of Chemical Sciences and Engineering, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955‐6900 (Kingdom of Saudi Arabia)
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (USA)
| | - Zhihong Nie
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 (USA)
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