1
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Giri SK, Schatz GC. Laser pulse induced second- and third-harmonic generation of gold nanorods with real-time time-dependent density functional tight binding (RT-TDDFTB) method. J Chem Phys 2024; 161:044703. [PMID: 39041878 DOI: 10.1063/5.0216887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 07/05/2024] [Indexed: 07/24/2024] Open
Abstract
In this study, we investigate second- and third-harmonic generation processes in Au nanorod systems using the real-time time-dependent density functional tight binding method. Our study focuses on the computation of nonlinear signals based on the time dependent dipole response induced by linearly polarized laser pulses interacting with nanoparticles. We systematically explore the influence of various laser parameters, including pump intensity, duration, frequency, and polarization directions, on harmonic generation. We demonstrate all the results using Au nanorod dimer systems arranged in end-to-end configurations, and disrupting the spatial symmetry of regular single nanorod systems is crucial for second-harmonic generation processes. Furthermore, we study the impact of nanorod lengths, which lead to variable plasmon energies, on harmonic generation, and estimates of polarizabilities and hyper-polarizabilities are provided.
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Affiliation(s)
- Sajal Kumar Giri
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
| | - George C Schatz
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
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2
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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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3
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Wei X, Chen C, Popov AV, Bathe M, Hernandez R. Binding Site Programmable Self-Assembly of 3D Hierarchical DNA Origami Nanostructures. J Phys Chem A 2024; 128:4999-5008. [PMID: 38875485 DOI: 10.1021/acs.jpca.4c02603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2024]
Abstract
DNA nanotechnology has broad applications in biomedical drug delivery and programmable materials. Characterization of the self-assembly of DNA origami and quantum dots (QDs) is necessary for the development of new DNA-based nanostructures. We use computation and experiment to show that the self-assembly of 3D hierarchical nanostructures can be controlled by programming the binding site number and their positions on DNA origami. Using biotinylated pentagonal pyramid wireframe DNA origamis and streptavidin capped QDs, we demonstrate that DNA origami with 1 binding site at the outer vertex can assemble multimeric origamis with up to 6 DNA origamis on 1 QD, and DNA origami with 1 binding site at the inner center can only assemble monomeric and dimeric origamis. Meanwhile, the yield percentages of different multimeric origamis are controlled by the QD:DNA-origami stoichiometric mixing ratio. DNA origamis with 2 binding sites at the αγ positions (of the pentagon) make larger nanostructures than those with binding sites at the αβ positions. In general, increasing the number of binding sites leads to increases in the nanostructure size. At high DNA origami concentration, the QD number in each cluster becomes the limiting factor for the growth of nanostructures. We find that reducing the QD size can also affect the self-assembly because of the reduced access to the binding sites from more densely packed origamis.
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Affiliation(s)
- Xingfei Wei
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Chi Chen
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Alexander V Popov
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Mark Bathe
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Rigoberto Hernandez
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
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4
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Cleret de Langavant C, Oh J, Lochon F, Tusseau-Nenez S, Ponsinet V, Baron A, Gacoin T, Kim J. Near-Infrared Dual-Band LSPR Coupling in Oriented Assembly of Doped Metal Oxide Nanocrystal Platelets. NANO LETTERS 2024; 24:3074-3081. [PMID: 38412556 DOI: 10.1021/acs.nanolett.3c04849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Coupling effects of localized surface plasmon resonance (LSPR) represent an efficient means to tune the plasmonic modes and to enhance the near-field. While LSPR coupling in metal nanoparticles has been extensively explored, limited attention has been given to heavily doped semiconductor nanocrystals. Here, we investigate the LSPR coupling behavior of Cs-doped tungsten oxide (CsxWO3-δ) nanocrystal platelets as they undergo an oriented assembly into parallel stacks. The oriented assembly was achieved by lowering the dispersion stability of the colloidal nanoplatelets, of which the basal surface was selectively ligand-functionalized. This assembly induces simultaneous blue-shifts and red-shifts of dual-mode LSPR peaks without compromising the intensity and quality factor. This stands in contrast to the significant damping, broadening, and overall red-shift of the LSPR observed in random assemblies. Computational simulations successfully replicate the experimental observations, affirming the potential of this coupling phenomenon of near-infrared dual-mode LSPR in diverse applications including solar energy, bio-optics, imaging, and telecommunications.
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Affiliation(s)
- Capucine Cleret de Langavant
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France
| | - Jisoo Oh
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France
| | - Florian Lochon
- Université de Bordeaux, CNRS, CRPP, UMR 5031, F-33600 Pessac, France
| | - Sandrine Tusseau-Nenez
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France
| | - Virginie Ponsinet
- Université de Bordeaux, CNRS, CRPP, UMR 5031, F-33600 Pessac, France
| | - Alexandre Baron
- Université de Bordeaux, CNRS, CRPP, UMR 5031, F-33600 Pessac, France
- Institut Universitaire de France, 1 Rue Descartes, 75231 Paris Cedex 05, France
| | - Thierry Gacoin
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France
| | - Jongwook Kim
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France
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5
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Kincanon M, Murphy CJ. Nanoparticle Size Influences the Self-Assembly of Gold Nanorods Using Flexible Streptavidin-Biotin Linkages. ACS NANO 2023. [PMID: 38010073 DOI: 10.1021/acsnano.3c09096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
The self-assembly of colloidal nanocrystals remains of robust interest due to its potential in creating hierarchical nanomaterials that have advanced function. For gold nanocrystals, junctions between nanoparticles yield large enhancements in local electric fields under resonant illumination, which is suitable for surface-enhanced spectroscopies for molecular sensors. Gold nanorods can provide such plasmonic fields at near-infrared wavelengths of light for longitudinal excitation. Through the use of careful concentration and stoichiometric control, a method is reported herein for selective biotinylation of the ends of gold nanorods for simple, consistent, and high-yielding self-assembly upon addition of the biotin-binding protein streptavidin. This method was applied to four different sized nanorods of similar aspect ratio and analyzed through UV-vis spectroscopy for qualitative confirmation of self-assembly and transmission electron microscopy to determine the degree of self-assembly in end-linked nanorods. The yield of end-linked assemblies approaches 90% for the largest nanorods and approaches 0% for the smallest nanorods. The number of nanorods linked in one chain also increases with an increased nanoparticle size. The results support the notion that the lower ligand density at the ends of the larger nanorods yields preferential substitution reactions at those ends and hence preferential end-to-end assembly, while the smallest nanorods have a relatively uniform ligand density across their surfaces, leading to spatially random substitution reactions.
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Affiliation(s)
- Maegen Kincanon
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
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Cui Y, Wang J, Liang J, Qiu H. Molecular Engineering of Colloidal Atoms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207609. [PMID: 36799197 DOI: 10.1002/smll.202207609] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/02/2023] [Indexed: 05/18/2023]
Abstract
Creation of architectures with exquisite hierarchies actuates the germination of revolutionized functions and applications across a wide range of fields. Hierarchical self-assembly of colloidal particles holds the promise for materialized realization of structural programing and customizing. This review outlines the general approaches to organize atom-like micro- and nanoparticles into prescribed colloidal analogs of molecules by exploiting diverse interparticle driving motifs involving confining templates, interactive surface ligands, and flexible shape/surface anisotropy. Furthermore, the self-regulated/adaptive co-assembly of simple unvarnished building blocks is discussed to inspire new designs of colloidal assembly strategies.
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Affiliation(s)
- Yan Cui
- School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jingchun Wang
- School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Juncong Liang
- School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Huibin Qiu
- School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
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7
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Proniewicz E. Metallic nanoparticles as effective sensors of bio-molecules. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 288:122207. [PMID: 36502763 DOI: 10.1016/j.saa.2022.122207] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/23/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
This work describes biologically important nanostructures of metals (AgNPs, AuNPs, and PtNPs) and metal oxides (Cu2ONPs, CuONSs, γ-Fe2O3NPs, ZnONPs, ZnONPs-GS, anatase-TiO2NPs, and rutile-TiO2NPs) synthesized by different methods (wet-chemical, electrochemical, and green-chemistry methods). The nanostructures were characterized by molecular spectroscopic methods, including scanning/transmission electron microscopy (SEM/TEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction analysis (XRD), photoelectron spectroscopy (XPS), ultraviolet-visible spectroscopy (UV-vis), dynamic light scattering (DLS), Raman scattering spectroscopy (RS), and infrared light spectroscopy (IR). Then, a peptide (bombesin, BN) was adsorbed onto the surface of these nanostructures from an aqueous solution with pH of 7 that did not contain surfactants. Adsorption was monitored using surface-enhanced Raman scattering spectroscopy (SERS) to determine the influence of the nature of the metal surface and surface evolution on peptide geometry. Information from the SERS studies was compared with information on the biological activity of the peptide. The SERS enhancement factor was determined for each of the metallic surfaces.
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Affiliation(s)
- E Proniewicz
- Faculty of Foundry Engineering, AGH University of Science and Technology, 30-059 Krakow, Poland.
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8
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Robert J, S Chauhan D, Cherraj A, Buiel J, De Crescenzo G, Banquy X. Coiled-coil peptide-based assembly of a plasmonic core-satellite polymer-metal nanocomposite as an efficient photothermal agent for drug delivery applications. J Colloid Interface Sci 2023; 641:929-941. [PMID: 36989819 DOI: 10.1016/j.jcis.2023.03.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/22/2023] [Accepted: 03/12/2023] [Indexed: 03/18/2023]
Abstract
Polymer-metal nanocomposites have widespread applications in biomedical fields such as imaging, catalysis, and drug delivery. These particles are characterized by combined organic and inorganic properties. Specifically, photothermal nanocomposites incorporating polymeric and plasmonic nanoparticles (NPs) have been designed for both triggered drug release and as imaging agents. However, the usual design of nanocomposites confers characteristic issues, among which are the decrease of optical properties and resulting low photothermal efficiency, as well as interactions with loaded drugs. Herein, we report the design of a core-satellite polymer-metal nanocomposite assembled by coiled-coil peptides and its superior photothermal efficiency compared to electrostatic-driven nanocomposites which is the standard design. We also found that the orientation of gold nanorods on the surface of polymeric NPs is of importance in the final photothermal efficiency and could be exploited for various applications. Our findings provide an alternative to current wrapping and electrostatic assembly of nanocomposites with the help of coiled-coil peptides and an improvement of the control over core-satellite assemblies with plasmonic NPs. It paves the way to highly versatile assemblies due to the nature of coiled-coil peptides to be easily modified and sensitive to pH or temperature.
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Affiliation(s)
- Jordan Robert
- Faculty of Pharmacy, Université de Montréal, Montréal H3T 1J4, Québec, Canada
| | - Deepak S Chauhan
- Faculty of Pharmacy, Université de Montréal, Montréal H3T 1J4, Québec, Canada
| | - Amel Cherraj
- Faculty of Medicine, Université de Lorraine, Metz 57000, France
| | - Jonathan Buiel
- Department of Biomedical Engineering, Faculty of Medicine, Université de Montréal, Montréal H3T 1J4, Québec, Canada
| | - Gregory De Crescenzo
- Department of Chemical Engineering, Groupe de Recherche en Sciences et Technologies Biomédicales (GRSTB), Bio-P2 Research Unit, Polytechnique Montréal, Montréal H3T 1J4, Québec, Canada
| | - Xavier Banquy
- Faculty of Pharmacy, Université de Montréal, Montréal H3T 1J4, Québec, Canada; Department of Biomedical Engineering, Faculty of Medicine, Université de Montréal, Montréal H3T 1J4, Québec, Canada; Department of Chemistry, Faculty of Arts and Science, Université de Montréal, Montréal H3T 1J4, Québec, Canada.
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9
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Yan HH, Huang M, Zhu F, Cheng R, Wen S, Li LT, Liu H, Zhao XH, Luo FK, Huang CZ, Wang J. Two-Dimensional Analysis Method for Highly Sensitive Detection of Dual MicroRNAs in Breast Cancer Cells. Anal Chem 2023; 95:3968-3975. [PMID: 36792543 DOI: 10.1021/acs.analchem.2c03479] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Multiple biomarker detection is crucial for early clinical diagnosis, and it is significant to achieve the simultaneous detection of multiple biomarkers with the same nanomaterial. In this work, the hairpin DNA strands were selectively modified on the surface of gold nanorods (AuNRs) to construct two kinds of nanoprobes by rational design. When in the presence of dual microRNAs, AuNRs were assembled to form end-to-end (ETE) and side-by-side (SBS) dimers. Compared with a single AuNR, the dark-field scattering intensity and red color percentage variation of dimers were extremely distinguished, which could be developed for dual microRNA detection by combining the red color percentage and scattering intensity with the data processing method of principal component analysis to construct a two-dimensional analysis method. Especially, the fraction of AuNR dimers presented a linear relationship with the amount of microRNAs. Based on this, microRNA-21 and microRNA Let-7a in breast cancer cells were detected with the detection limits of 1.72 and 0.53 fM, respectively. This method not only achieved the sensitive detection of dual microRNAs in human serum but also realized the high-resolution intracellular imaging, which developed a new way for the oriented assembly of nanomaterials and biological detection in living cells.
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Affiliation(s)
- Hui Hong Yan
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Min Huang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Fu Zhu
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Ru Cheng
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | | | - Liang Tong Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Hui Liu
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Xiao Hui Zhao
- The Ninth People's Hospital of Chongqing, No. 69 Jialing Village, Beibei District, Chongqing 400700, China
| | - Fu Kang Luo
- The Ninth People's Hospital of Chongqing, No. 69 Jialing Village, Beibei District, Chongqing 400700, China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Jian Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
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10
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Bhattacharjee S, George M, Shim YB, Bernaurdshaw N, Das J. Electropotential-Inspired Star-Shaped Gold Nanoconfined Multiwalled Carbon Nanotubes: A Proof-of-Concept Electrosensoring Interface for Lung Metastasis Biomarkers. ACS APPLIED BIO MATERIALS 2022; 5:5567-5581. [PMID: 36480914 DOI: 10.1021/acsabm.2c00605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, an innovative way of designing a star-shaped gold nanoconfined multiwalled carbon nanotube-engineered sensoring interface (AuNS@MWCNT//GCE) is demonstrated for quantification of methionine (MTH); a proof of concept for lung metastasis. The customization of the AuNS@MWCNT is assisted by surface electrochemistry and thoroughly discussed using state-of-the-art analytical advances. Micrograph analysis proves the protrusion of nanotips on the surface of potentiostatically synthesized AuNPs and validates the hypothesis of Turkevich seed (AuNP)-mediated formation of AuNSs. In addition, a facile synthesis of electropotential-assisted transformation of MWCNTs to luminescent nitrogen-doped graphene quantum dots (Nd-GQDs avg. ∼4.3 nm) is unveiled. The sensor elucidates two dynamic responses as a function of CMTH ranging from 2 to 250 μM and from 250 to 3000 μM with a detection limit (DL) of ∼0.20 μM, and is robust to interferents except for tiny response of a similar -SH group bearing Cys (<9.00%). The high sensitivity (0.44 μA·μM-1·cm-2) and selectivity of the sensor can be attributed to the strong hybridization of the Au nanoparticle with the sp2 C atom of the MWCNTs, which makes them a powerful electron acceptor for Au-SH-MTH interaction as evidenced by density functional theory (DFT) calculations. The validation of the acceptable recovery of MTH in real serum and pharma samples by standard McCarthy-Sullivan assay reveals the holding of great promise to provide valuable information for early diagnosis as well as assessing the therapeutic consequence of lung metastasis.
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Affiliation(s)
- Sangya Bhattacharjee
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Chennai603203, Tamil Nadu, India
| | - Melvin George
- Department of Clinical Pharmacology, SRM Medical College Hospital and Research Center, Kattanlulathur603203, Tamil Nadu, India
| | - Yoon-Bo Shim
- Department of Chemistry and Institute of BioPhysio Sensor Technology (IBST), Pusan National University, Busan46241, Republic of Korea
| | - Neppolian Bernaurdshaw
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai603203, Tamil Nadu, India
| | - Jayabrata Das
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Chennai603203, Tamil Nadu, India
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11
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Fabrication and Evaluation of Optical Nanobiosensor based on localized surface plasmon resonance (LSPR) of gold nanorod for detection of CRP. Anal Chim Acta 2022; 1237:340580. [DOI: 10.1016/j.aca.2022.340580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 09/16/2022] [Accepted: 10/30/2022] [Indexed: 11/05/2022]
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12
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Hong LR, Xu H, Zhu Y, Li Z, Bai B, Ding G. Surface Plasmon Resonance Enhanced Hydrogen Evolution from Water with Graphitic Carbon Nitride Photocatalyst. Catal Letters 2022. [DOI: 10.1007/s10562-022-04168-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Hoang KNL, McClain SM, Meyer SM, Jalomo CA, Forney NB, Murphy CJ. Site-selective modification of metallic nanoparticles. Chem Commun (Camb) 2022; 58:9728-9741. [PMID: 35975479 DOI: 10.1039/d2cc03603g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Surface patterning of inorganic nanoparticles through site-selective functionalization with mixed-ligand shells or additional inorganic material is an intriguing approach to developing tailored nanomaterials with potentially novel and/or multifunctional properties. The unique physicochemical properties of such nanoparticles are likely to impact their behavior and functionality in biological environments, catalytic systems, and electronics applications, making it vital to understand how we can achieve and characterize such regioselective surface functionalization. This Feature Article will review methods by which chemists have selectively modified the surface of colloidal nanoparticles to obtain both two-sided Janus particles and nanoparticles with patchy or stripey mixed-ligand shells, as well as to achieve directed growth of mesoporous oxide materials and metals onto existing nanoparticle templates in a spatially and compositionally controlled manner. The advantages and drawbacks of various techniques used to characterize the regiospecificity of anisotropic surface coatings are discussed, as well as areas for improvement, and future directions for this field.
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Affiliation(s)
- Khoi Nguyen L Hoang
- Department of Chemistry, University of Illinois Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois, 61801, USA.
| | - Sophia M McClain
- Department of Chemistry, University of Illinois Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois, 61801, USA.
| | - Sean M Meyer
- Department of Chemistry, University of Illinois Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois, 61801, USA.
| | - Catherine A Jalomo
- Department of Chemistry, University of Illinois Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois, 61801, USA.
| | - Nathan B Forney
- Department of Chemistry, University of Illinois Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois, 61801, USA.
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois, 61801, USA.
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14
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Lu X, Punj D, Orrit M. Two-Photon-Excited Single-Molecule Fluorescence Enhanced by Gold Nanorod Dimers. NANO LETTERS 2022; 22:4215-4222. [PMID: 35575461 PMCID: PMC9136919 DOI: 10.1021/acs.nanolett.2c01219] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/10/2022] [Indexed: 06/15/2023]
Abstract
We demonstrate two-photon-excited single-molecule fluorescence enhancement by single end-to-end self-assembled gold nanorod dimers. We employed biotinylated streptavidin as the molecular linker, which connected two gold nanorods in end-to-end fashion. The typical size of streptavidin of around 5 nm separates the gold nanorods with gaps suitable for the access of fresh dyes in aqueous solution, yet small enough to give very high two-photon fluorescence enhancement. Simulations show that enhancements of more than 7 orders of magnitude can be achieved for two-photon-excited fluorescence in the plasmonic hot spots. With such high enhancements, we successfully detect two-photon-excited fluorescence for a common organic dye (ATTO 610) at the single-molecule, single-nanoparticle level.
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15
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Fan X, Walther A. 1D Colloidal chains: recent progress from formation to emergent properties and applications. Chem Soc Rev 2022; 51:4023-4074. [PMID: 35502721 DOI: 10.1039/d2cs00112h] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Integrating nanoscale building blocks of low dimensionality (0D; i.e., spheres) into higher dimensional structures endows them and their corresponding materials with emergent properties non-existent or only weakly existent in the individual building blocks. Constructing 1D chains, 2D arrays and 3D superlattices using nanoparticles and colloids therefore continues to be one of the grand goals in colloid and nanomaterial science. Amongst these higher order structures, 1D colloidal chains are of particular interest, as they possess unique anisotropic properties. In recent years, the most relevant advances in 1D colloidal chain research have been made in novel synthetic methodologies and applications. In this review, we first address a comprehensive description of the research progress concerning various synthetic strategies developed to construct 1D colloidal chains. Following this, we highlight the amplified and emergent properties of the resulting materials, originating from the assembly of the individual building blocks and their collective behavior, and discuss relevant applications in advanced materials. In the discussion of synthetic strategies, properties, and applications, particular attention will be paid to overarching concepts, fresh trends, and potential areas of future research. We believe that this comprehensive review will be a driver to guide the interdisciplinary field of 1D colloidal chains, where nanomaterial synthesis, self-assembly, physical property studies, and material applications meet, to a higher level, and open up new research opportunities at the interface of classical disciplines.
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Affiliation(s)
- Xinlong Fan
- Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Str. 31, 79104, Freiburg, Germany.
| | - Andreas Walther
- A3BMS Lab, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
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16
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Lu X, Punj D, Orrit M. Controlled synthesis of gold nanorod dimers with end-to-end configurations. RSC Adv 2022; 12:13464-13471. [PMID: 35527728 PMCID: PMC9069271 DOI: 10.1039/d2ra01288j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/21/2022] [Indexed: 11/21/2022] Open
Abstract
End-to-end gold nanorod dimers provide unique plasmonic hotspots with extremely large near-field enhancements in the gaps. Thereby they are beneficial in a wide range of applications, such as enhancing the emissions from ultra-weak emitters. For practical purposes, synthesis of gold nanorod dimers with high yield, especially on the substrates, is essential. Here, we demonstrate two controllable strategies to synthesize gold nanorod dimers based on the self-assembly of gold nanorods, either in bulk solution or on the surface of a glass substrate directly. Both methods can give a high yield of gold nanorod dimers, yet, assembling them directly on the substrate provides more flexibility in controlling the shape and size of each nanorod within the dimer. We also show that these gold nanorod dimers can be used to enhance two-photon-excited fluorescence signals at the single-molecule level.
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Affiliation(s)
- Xuxing Lu
- Huygens-Kamerlingh Onnes Laboratory 2300 RA Leiden Netherlands
| | - Deep Punj
- Huygens-Kamerlingh Onnes Laboratory 2300 RA Leiden Netherlands
| | - Michel Orrit
- Huygens-Kamerlingh Onnes Laboratory 2300 RA Leiden Netherlands
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17
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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.
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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
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18
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Saini B, Khamari L, Mukherjee TK. Kinetic and Mechanistic Insight into the Surfactant-Induced Aggregation of Gold Nanoparticles and Their Catalytic Efficacy: Importance of Surface Restructuring. J Phys Chem B 2022; 126:2130-2141. [PMID: 35254808 DOI: 10.1021/acs.jpcb.2c00702] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Understanding the fundamental interactions between plasmonic metal nanoparticles (MNPs) and small molecules is of utmost importance in various applications such as catalysis, sensing, drug delivery, optoelectronics, and surface-enhanced Raman spectroscopy. Herein, we have investigated the early stage of the aggregation pathway of citrate-stabilized Au NPs with surfactants and explored their catalytic efficacy. Our findings reveal that (17 ± 2)-nm-sized citrate-stabilized Au NPs undergo concentration and time-dependent aggregation with positively charged cetyltrimethylammonium bromide (CTAB). Kinetic analyses revealed the presence of two distinct kinds of aggregates, namely, smaller clusters and a larger branched network of Au nanochains. At longer times and in the presence of higher concentrations of CTAB, these branched networks of Au nanochains transform into dense compact globular aggregates. The catalytic efficacy of Au NPs, branched Au nanochains, and dense compact aggregates has been explored with respect to the reductive hydrogenation of 4-nitophenol in the presence of excess NaBH4. Our study revealed that the catalytic rate decreases in the order of Au NPs > branched Au nanochains > compact aggregates. Interestingly, pre-equilibrating different Au NP samples with excess NaBH4 prior to the onset of the reaction results in similar catalytic activity irrespective of the aggregation state of Au NPs. This observation has been explained by considering efficient surface restructuring via ligand exchange with H- ions and the subsequent disruption of CTAB-induced aggregates of Au NPs. Moreover, the aggregated Au NPs can be recycled over several consecutive cycles for the reductive hydrogenation of 4-NP upon ligand exchange with H- ions. Taken together, our present study highlights the early-stage aggregation kinetics of Au NPs with CTAB surfactants and demonstrates the importance of the surface restructuring of Au NPs on their catalytic efficacy.
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Affiliation(s)
- Bhawna Saini
- Department of Chemistry, Indian Institute of Technology (IIT) Indore, Simrol, Indore 453552, Madhya Pradesh, India
| | - Laxmikanta Khamari
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Tushar Kanti Mukherjee
- Department of Chemistry, Indian Institute of Technology (IIT) Indore, Simrol, Indore 453552, Madhya Pradesh, India
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19
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Liu B, Li W, Duguet E, Ravaine S. Linear Assembly of Two-Patch Silica Nanoparticles and Control of Chain Length by Coassembly with Colloidal Chain Stoppers. ACS Macro Lett 2022; 11:156-160. [PMID: 35574797 DOI: 10.1021/acsmacrolett.1c00699] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The self-assembly of patchy nanosized building blocks is an efficient strategy for producing highly organized materials. Herein we report the chaining of divalent silica nanoparticles with polystyrene patches dispersed in tetrahydrofuran triggered by lowering the solvent quality. We study the influence of the patch-to-particle size ratio and show that the nature of the added nonsolvent, for example, ethanol, water, or salty water, and its volume fraction should be carefully adjusted. We demonstrate that colloidal assembly initially obeys the kinetic model of step-growth polymerization and that beyond a certain length, the chains have the possibility to cyclize. We also show that the length of the chains can be controlled by the addition of one-patch silica nanoparticles, which act as colloidal analogues of chain stoppers.
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Affiliation(s)
- Bin Liu
- Univ. Bordeaux, CNRS, CRPP, UMR 5031, F-33600 Pessac, France
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Weiya Li
- Univ. Bordeaux, CNRS, CRPP, UMR 5031, F-33600 Pessac, France
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Etienne Duguet
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Serge Ravaine
- Univ. Bordeaux, CNRS, CRPP, UMR 5031, F-33600 Pessac, France
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20
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Meena SK, Meena C. The implication of adsorption preferences of ions and surfactants on the shape control of gold nanoparticles: a microscopic, atomistic perspective. NANOSCALE 2021; 13:19549-19560. [PMID: 34806728 DOI: 10.1039/d1nr05244f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Shape modulation of nanoparticles is crucial for their tailored applications; however, it depends on surfactants, ions, reactants, and other additives present in the growth solution. Here we dissect the role of surfactants, their counterions (halide ions), silver ions, and gold reactant in gold nanoparticle anisotropic growth using polarizable surfaces and nanoseed molecular dynamics simulation models. Our planar surface models predict a 14%-16% increment in cetyltrimethylammonium bromide (CTAB) coverage on Au(111) and Au(100) due to the surface polarization effect. The CTAB micelle adsorbs compactly similar to that observed on non-polarizable surfaces. The cetyltrimethylammonium chloride (CTAC) micelle remains in solution leaving the polarizable gold surfaces unprotected, similar to that observed with the non-polarizable surfaces, which favors isotropic growth. The cetyltrimethylammonium iodide (CTAI) micelle adsorbs with higher surface densities than CTAB on all the surfaces. The surface polarizable penta-twinned nanoseed model predicts the total surface coverage of the cetyltrimethylammonium cation (CTA+), Br- and Ag+ to be around two times higher on the side as compared to the tip of the nanoseed, leading to a 2.6 times higher initial rate of adsorption of AuCl2- on the tip than on the side. Predicted CTA+ surface densities on the tip and the side of the nanoseed are consistent with experimental results. Our simulations explain the growth mechanism of anisotropic nanoparticles and the microscopic origin of their controlled shapes.
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Affiliation(s)
- Santosh Kumar Meena
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory (NCL), Dr. HomiBhabha Road, Pune-411008, India.
| | - Chandrakala Meena
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory (NCL), Dr. HomiBhabha Road, Pune-411008, India.
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21
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Ouyang Y, Zhang P, Manis-Levy H, Paltiel Y, Willner I. Transient Dissipative Optical Properties of Aggregated Au Nanoparticles, CdSe/ZnS Quantum Dots, and Supramolecular Nucleic Acid-Stabilized Ag Nanoclusters. J Am Chem Soc 2021; 143:17622-17632. [PMID: 34643387 DOI: 10.1021/jacs.1c07895] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Transient, dissipative, aggregation and deaggregation of Au nanoparticles (NPs) or semiconductor quantum dots (QDs) leading to control over their transient optical properties are introduced. The systems consist of nucleic acid-modified pairs of Au NPs or pairs of CdSe/ZnS QDs, an auxiliary duplex L1/T1, and the nicking enzyme Nt.BbvCI as functional modules yielding transient aggregation/deaggregation of the NPs and dynamically controlling over their optical properties. In the presence of a fuel strand L1', the duplex L1/T1 is separated, leading to the release of T1 and the formation of duplex L1/L1'. The released T1 leads to aggregation of the Au NPs or to the T1-induced G-quadruplex bridged aggregated CdSe/ZnS QDs. Biocatalytic nicking of the L1/L1' duplex fragments L1' and the released L1 displaces T1 bridging the aggregated NPs or QDs, resulting in the dynamic recovery of the original NPs or QDs modules. The dynamic aggregation/deaggregation of the Au NPs is followed by the transient interparticle plasmon coupling spectral changes. The dynamic aggregation/deaggregation of the CdSe/ZnS QDs is probed by following the transient chemiluminescence generated by the hemin/G-quadruplexes bridging the QDs and by the accompanying transient chemiluminescence resonance energy transfer proceeding in the dynamically formed QDs aggregates. A third system demonstrating transient, dissipative, luminescence properties of a reaction module consisting of nucleic acid-stabilized Ag nanoclusters (NCs) is introduced. Transient dynamic formation and depletion of the supramolecular luminescent Ag NCs system via strand displacement accompanied by a nicking process are demonstrated.
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Affiliation(s)
- Yu Ouyang
- The Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Pu Zhang
- The Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Hadar Manis-Levy
- Department of Applied Physics, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Yossi Paltiel
- Department of Applied Physics, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Itamar Willner
- The Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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22
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Beuwer MA, Zijlstra P. Correlative microscopy of single self-assembled nanorod dimers for refractometric sensing. J Chem Phys 2021; 155:044701. [PMID: 34340368 DOI: 10.1063/5.0055135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Single metallic particles and dimers of nanospheres have been used extensively for sensing, but dimers of particles provide attractive advantages because they exhibit multiple modes that can be tuned by the dimer geometry. Here, we employ correlative microscopy of single self-assembled dimers of gold nanorods to study their performance as refractometric sensors. The correlation between atomic force microscopy and single-particle white-light spectroscopy allows us to relate the measured sensitivity to numerical simulations taking into account the exact geometry of the construct. The sensitivity of the antibonding mode is in good agreement with simulations, whereas the bonding mode exhibits a reduced sensitivity related to the accessibility of the gap region between the particles. We find that the figure of merit is a trade-off between the resonance linewidth and its refractive index sensitivity, which depend in opposite ways on the interparticle angle. The presence of two narrow plasmon resonances in the visible to near-infrared wavelength regime makes nanorod dimers exciting candidates for multicolor and multiplexed sensing.
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Affiliation(s)
- Michael A Beuwer
- Department of Applied Physics, Eindhoven University of Technology, 5600 MB Eindhoven The Netherlands and Institute for Complex Molecular Systems, Eindhoven University of Technology, 5600 MB Eindhoven The Netherlands
| | - Peter Zijlstra
- Department of Applied Physics, Eindhoven University of Technology, 5600 MB Eindhoven The Netherlands and Institute for Complex Molecular Systems, Eindhoven University of Technology, 5600 MB Eindhoven The Netherlands
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23
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Hwang EY, Lee JH, Lim DW. Janus bimetallic nanorod clusters-poly(aniline) nanocomposites with temperature-responsiveness for Raman scattering-based biosensing. J Mater Chem B 2021; 9:5293-5308. [PMID: 34137769 DOI: 10.1039/d1tb00699a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, Janus bimetallic nanorod clusters-poly(aniline) nanocomposites (JRCPCs) with gold nanorod clusters (GNRCs) in side-by-side (SBS) or end-to-end (ETE) configuration are synthesized, and applied to surface-enhanced Raman scattering (SERS)-based biosensing of carcinoembryonic antigen (CEA). Taking advantage of their geometrical and chemical anisotropy, GNRCs in both SBS and ETE configurations are prepared by addition of negatively charged citrate anions and poly(acrylic acid)-block-poly(N-isopropylacrylamide) (PAAc-b-PNIPAM), respectively, to electrostatically interact with cationic cetyltrimethylammonium bromide surfactant on the side of the gold nanorods (GNRs). Subsequently, the JRCPCs are prepared by unidirectional growth of polyaniline and additional growth of Ag onto these GNRCs. JRCPCs with GNRCs in either the SBS or the ETE configuration show strong enhancement of electromagnetic field at both GNR aggregates and GNRC core-Ag shell gaps of bimetallic nanorod cluster components. In particular, because temperature-responsive PAAc-b-PNIPAM of JRCPCs is embedded at GNR junctions, interparticle gaps generated in GNRCs in ETE configuration are controlled via temperature-triggered hydration-dehydration of the PAAc-b-PNIPAM chains such that optical properties are largely changed. With distinct surface functionalities from JRCPCs, SERS-based quantitative analysis of CEA is achieved using JRCPCs as SERS nanoprobes. This work presents the great potential of advanced Janus nanocomposites for SERS-based biosensing applications.
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Affiliation(s)
- Eun Young Hwang
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, Republic of Korea.
| | - Jae Hee Lee
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, Republic of Korea.
| | - Dong Woo Lim
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, Republic of Korea.
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24
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Wang N, Cao P, Ma H, Lin M. How Stabilizers and Reducing Agents Affect the Formation of Nanogold Amalgams. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7681-7688. [PMID: 34139839 DOI: 10.1021/acs.langmuir.1c00618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The influence of mercury on the morphology and formation mechanism of gold amalgams in the presence of different reducing agents (ascorbic acid and sodium borohydride) was systematically studied. In the presence of cetyltrimethylammonium bromide (CTAB), chemical reducing agents not only reduced mercury ions in the solution but also replaced the CTAB molecules on the surface of the gold nanorod. The stability of the reducing agents in the colloidal system and the combining capacity of the reducing agent to the gold nanoparticles can affect the alloying process of mercury and gold, thereby forming a rod-shaped or spherical gold amalgam. Once CTAB was removed, a similar transformation process occurs between the gold nanorods and mercury. In addition, without the presence of a stabilizer, mercury that cannot be dispersed undergoes Ostwald ripening growth, which causes the gold amalgam nanoalloys to form a tip-to-tip structure as a result of mercury enrichment because of the weak shielding effects occurring at the tips of the gold nanorods. After the CTAB molecules were substituted with ascorbic acid and alkylthiol molecules, the question of whether the shielding effect weakened or disappeared was also investigated. By investigation, this research found that, in comparison to the blocking effect of CTAB molecules, the binding ability of the reducing agent to gold plays a dominant role in the nanoamalgam formation process.
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Affiliation(s)
- Nan Wang
- School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, People's Republic of China
| | - Pengfei Cao
- School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, People's Republic of China
| | - Houyi Ma
- School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, People's Republic of China
| | - Meng Lin
- School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, People's Republic of China
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25
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Lyu Y, Martínez Á, D’Incà F, Mancin F, Scrimin P. The Biotin-Avidin Interaction in Biotinylated Gold Nanoparticles and the Modulation of Their Aggregation. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1559. [PMID: 34199307 PMCID: PMC8231960 DOI: 10.3390/nano11061559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/25/2021] [Accepted: 06/06/2021] [Indexed: 11/23/2022]
Abstract
The biotin-avidin interaction is used as a binding tool for the conjugation of biomolecules for more diverse applications; these include nanoparticle conjugation. Despite this, a thorough investigation on the different aggregates that may result from the interaction of biotinylated nanoparticles (gold nanoparticles, AuNPs, in this work) with avidin has not been carried out so far. In this paper, we address this problem and show the type of aggregates formed under thermodynamic and kinetic control by varying the biotinylated AuNP/avidin ratio and the order of addition of the two partners. The analysis was performed by also addressing the amount of protein able to interact with the AuNPs surface and is fully supported by the TEM images collected for the different samples and the shift of the surface plasmon resonance band. We show that the percentage of saturation depends on the size of the nanoparticles, and larger nanoparticles (19 nm in diameter) manage to accommodate a relatively larger amount of avidins than smaller ones (11 nm). The AuNPs are isolated or form small clusters (mostly dimers or trimers) when a large excess or a very low amount of avidin is present, respectively, or form large clusters at stoichiometric concentration of the protein. Daisy-like systems are formed under kinetic control conditions when nanoparticles first covered with the protein are treated with a second batch of biotinylated ones but devoid of avidin.
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Affiliation(s)
| | | | | | - Fabrizio Mancin
- Department of Chemical Sciences, University of Padova, via Marzolo, 1, 35131 Padova, Italy; (Y.L.); (Á.M.); (F.D.)
| | - Paolo Scrimin
- Department of Chemical Sciences, University of Padova, via Marzolo, 1, 35131 Padova, Italy; (Y.L.); (Á.M.); (F.D.)
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26
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Liu J, Huang J, Niu W, Tan C, Zhang H. Unconventional-Phase Crystalline Materials Constructed from Multiscale Building Blocks. Chem Rev 2021; 121:5830-5888. [PMID: 33797882 DOI: 10.1021/acs.chemrev.0c01047] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Crystal phase, an intrinsic characteristic of crystalline materials, is one of the key parameters to determine their physicochemical properties. Recently, great progress has been made in the synthesis of nanomaterials with unconventional phases that are different from their thermodynamically stable bulk counterparts via various synthetic methods. A nanocrystalline material can also be viewed as an assembly of atoms with long-range order. When larger entities, such as nanoclusters, nanoparticles, and microparticles, are used as building blocks, supercrystalline materials with rich phases are obtained, some of which even have no analogues in the atomic and molecular crystals. The unconventional phases of nanocrystalline and supercrystalline materials endow them with distinctive properties as compared to their conventional counterparts. This Review highlights the state-of-the-art progress of nanocrystalline and supercrystalline materials with unconventional phases constructed from multiscale building blocks, including atoms, nanoclusters, spherical and anisotropic nanoparticles, and microparticles. Emerging strategies for engineering their crystal phases are introduced, with highlights on the governing parameters that are essential for the formation of unconventional phases. Phase-dependent properties and applications of nanocrystalline and supercrystalline materials are summarized. Finally, major challenges and opportunities in future research directions are proposed.
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Affiliation(s)
- Jiawei Liu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Jingtao Huang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Wenxin Niu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy Sciences, Changchun, Jilin 130022, P.R. China
| | - Chaoliang Tan
- Department of Electrical Engineering, City University of Hong Kong, Hong Kong, China
| | - Hua Zhang
- Department of Chemistry, City University of Hong Kong, Hong Kong, China.,Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
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27
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Wu J, Chen S, Jia W. Robust phase transfer, 3D-assembly and SERS application of multi-shaped gold nanoparticles. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2019.1710527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Junwen Wu
- Sinopec Research Institute of Petroleum Exploration & Development, Beijing, P. R. China
| | - Songhua Chen
- College of Chemistry and Material Science, Longyan University, Longyan, P. R. China
| | - Wenfeng Jia
- Sinopec Research Institute of Petroleum Engineering, Beijing, P. R. China
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28
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Sutter E, Zhang B, Sutter P. Single-strand DNA-nanorod conjugates - tunable anisotropic colloids for on-demand self-assembly. J Colloid Interface Sci 2021; 586:847-854. [PMID: 33198983 DOI: 10.1016/j.jcis.2020.11.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 11/01/2020] [Accepted: 11/03/2020] [Indexed: 02/09/2023]
Abstract
Directed self-assembly uses different stimuli to initiate and control the interaction between nanocrystals. Protonation at reduced pH represents a convenient stimulus for initiating self-assembly. Prior work has focused on protonation-induced hydrogen bonding between peptide or amino acid functionalized nanocrystals for reversible cycling between dispersed and aggregated states. Here, we discuss a fundamentally different approach, in which changes in pH modify the nonspecific interparticle interaction between Au nanorods conjugated with single-stranded (ss) DNA. While electrostatic repulsion stabilizes dispersed suspensions at neutral pH, protonation in acidic solution modifies the DNA corona, turning the interaction between the rods attractive and triggering their self-assembly. Analysis of in-situ electron microscopy of ssDNA-Au nanorods in solution is consistent with a van der Waals attraction of charge-neutral monomers at acidic pH. The results demonstrate ssDNA-conjugated anisotropic nanostructures as versatile building blocks with stimuli-programmable interactions for on-demand self-assembly.
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Affiliation(s)
- Eli Sutter
- Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, United States.
| | - Bo Zhang
- Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, United States
| | - Peter Sutter
- Department of Electrical & Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, United States.
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29
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Coughlin EE, Hu J, Lee A, Odom TW. Light-Mediated Directed Placement of Different DNA Sequences on Single Gold Nanoparticles. J Am Chem Soc 2021; 143:3671-3676. [DOI: 10.1021/jacs.0c11699] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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30
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Maekawa T, Nyu T, Mondarte EAQ, Tahara H, Suthiwanich K, Hayashi T. Visualization of molecular binding sites at the nanoscale in the lift-up mode by amplitude-modulation atomic force microscopy. NANOSCALE 2021; 13:4213-4220. [PMID: 33586723 DOI: 10.1039/d0nr06125e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report a new approach to visualize the local distribution of molecular recognition sites with nanoscale resolution by amplitude-modulation atomic force microscopy. By integrating chemical modification of probes, photothermal excitation to drive a cantilever, and lift-up scanning over surface topography, we successfully visualized binding sites provided by streptavidin on a solid surface for biotin attached on an AFM probe. The optimization of measurement conditions was discussed in detail, and the application of the technique was verified with a different ligand-receptor system.
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Affiliation(s)
- Tatsuhiro Maekawa
- Tokyo Institute of Technology, Department of Materials Science and Engineering, School of Materials and Chemical Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan.
| | - Takashi Nyu
- Tokyo Institute of Technology, Department of Materials Science and Engineering, School of Materials and Chemical Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan.
| | - Evan Angelo Quimada Mondarte
- Tokyo Institute of Technology, Department of Materials Science and Engineering, School of Materials and Chemical Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan.
| | - Hiroyuki Tahara
- Tokyo Institute of Technology, Department of Materials Science and Engineering, School of Materials and Chemical Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan.
| | - Kasinan Suthiwanich
- Tokyo Institute of Technology, Department of Materials Science and Engineering, School of Materials and Chemical Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan.
| | - Tomohiro Hayashi
- Tokyo Institute of Technology, Department of Materials Science and Engineering, School of Materials and Chemical Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan. and JST-PRESTO, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
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31
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Devi M, Dhir A, Pradeep CP. Facile Synthesis of Large Wrinkled Gold Nanoparticles Using Anthracene‐Terminated Tripodal Amine Ligand and their Catalytic Efficiency. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Manisha Devi
- School of Basic Sciences Indian Institute of Technology Mandi Mandi Kamand – 175005 Himachal Pradesh India
| | - Abhimanew Dhir
- Solid State and Structural Chemistry Unit Indian Institute of Science Bangalore India
| | - Chullikkattil P. Pradeep
- School of Basic Sciences Indian Institute of Technology Mandi Mandi Kamand – 175005 Himachal Pradesh India
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32
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Severoni E, Maniappan S, Liz-Marzán LM, Kumar J, García de Abajo FJ, Galantini L. Plasmon-Enhanced Optical Chirality through Hotspot Formation in Surfactant-Directed Self-Assembly of Gold Nanorods. ACS NANO 2020; 14:16712-16722. [PMID: 33232119 DOI: 10.1021/acsnano.0c03997] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Plasmonically enhanced optical dichroism has attracted substantial interest for its application in optical sensing, where the interplay between chirality emanating from both molecules and plasmon-supporting structures has been regarded as a critical ingredient. Here, we experimentally demonstrate that suitably self-assembled achiral plasmonic nanostructures produce a high degree of enhancement in the optical dichroism observed from chiral molecules placed in their vicinity. Specifically, we identify a near-field enhancement associated with plasmonic hotpots as the mechanism enabling our observation of visible-NIR circular dichroism emanating from small amounts of chiral molecules. Our structures consist of linear arrays of gold nanorods obtained by introducing chiral anionic surfactants, such as modified bile salts, which lead to selective destabilization of a cetyltrimethylammonium bromide coating layer on Au nanorods, thereby promoting a tip-to-tip oriented assembly. The proposed mechanism of plasmonically-enhanced circular dichroism is supported by deriving a simple, yet general theoretical formalism that confirms the observed results, revealing the role of optical hotspots at the gaps of linear tip-to-tip nanorod assemblies as the origin of enhancement in the dichroism from chiral molecules. Importantly, it is the refractive rather than the absorption-mediated chiral response of the molecules that produces dichroism in the visible-NIR plasmonic regime, far from their UV absorption resonances. The observed self-assembly mechanism suggests that chiral analytes not directly interacting with the nanorod surfaces, but just able to induce tip-to-tip aggregation, can be revealed by a CD signature in the plasmonic region, thereby supporting potential applications in ultrasensitive analysis.
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Affiliation(s)
- Emilia Severoni
- Dipartimento di Chimica, "Sapienza" Università di Roma, P. le A. Moro 5, 00185 Roma, Italy
| | - Sonia Maniappan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517 507, India
| | - Luis M Liz-Marzán
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
- Centro de Investigación en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Jatish Kumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517 507, India
| | - F Javier García de Abajo
- Institut de Ciencies Fotoniques (ICFO), The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Luciano Galantini
- Dipartimento di Chimica, "Sapienza" Università di Roma, P. le A. Moro 5, 00185 Roma, Italy
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33
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Liu Q, Yuan Z, Zhao M, Huisman M, Drewes G, Piskorz T, Mytnyk S, Koper GJM, Mendes E, Esch JH. Interfacial Microcompartmentalization by Kinetic Control of Selective Interfacial Accumulation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qian Liu
- Department of Chemical Engineering Delft University of Technology van der Maasweg 9 Delft 2629 HZ The Netherlands
| | - Zhenyu Yuan
- Department of Chemical Engineering East China University of Science and Technology Meilong 130 Shanghai 200237 P. R. China
| | - Meng Zhao
- Department of Materials Science and Engineering Delft University of Technology Mekelweg 2 Delft 2628 CD The Netherlands
| | - Max Huisman
- Department of Chemical Engineering Delft University of Technology van der Maasweg 9 Delft 2629 HZ The Netherlands
| | - Gido Drewes
- Department of Chemical Engineering Delft University of Technology van der Maasweg 9 Delft 2629 HZ The Netherlands
| | - Tomasz Piskorz
- Department of Chemical Engineering Delft University of Technology van der Maasweg 9 Delft 2629 HZ The Netherlands
| | - Serhii Mytnyk
- Department of Chemical Engineering Delft University of Technology van der Maasweg 9 Delft 2629 HZ The Netherlands
| | - Ger J. M. Koper
- Department of Chemical Engineering Delft University of Technology van der Maasweg 9 Delft 2629 HZ The Netherlands
| | - Eduardo Mendes
- Department of Chemical Engineering Delft University of Technology van der Maasweg 9 Delft 2629 HZ The Netherlands
| | - Jan H. Esch
- Department of Chemical Engineering Delft University of Technology van der Maasweg 9 Delft 2629 HZ The Netherlands
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34
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Liu Q, Yuan Z, Zhao M, Huisman M, Drewes G, Piskorz T, Mytnyk S, Koper GJM, Mendes E, van Esch JH. Interfacial Microcompartmentalization by Kinetic Control of Selective Interfacial Accumulation. Angew Chem Int Ed Engl 2020; 59:23748-23754. [PMID: 32914922 PMCID: PMC7894335 DOI: 10.1002/anie.202009701] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Indexed: 12/30/2022]
Abstract
Reported here is a 2D, interfacial microcompartmentalization strategy governed by 3D phase separation. In aqueous polyethylene glycol (PEG) solutions doped with biotinylated polymers, the polymers spontaneously accumulate in the interfacial layer between the oil-surfactant-water interface and the adjacent polymer phase. In aqueous two-phase systems, these polymers first accumulated in the interfacial layer separating two polymer solutions and then selectively migrated to the oil-PEG interfacial layer. By using polymers with varying photopolymerizable groups and crosslinking rates, kinetic control and capture of spatial organisation in a variety of compartmentalized macroscopic structures, without the need of creating barrier layers, was achieved. This selective interfacial accumulation provides an extension of 3D phase separation towards synthetic compartmentalization, and is also relevant for understanding intracellular organisation.
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Affiliation(s)
- Qian Liu
- Department of Chemical EngineeringDelft University of Technologyvan der Maasweg 9Delft2629 HZThe Netherlands
| | - Zhenyu Yuan
- Department of Chemical EngineeringEast China University of Science and TechnologyMeilong 130Shanghai200237P. R. China
| | - Meng Zhao
- Department of Materials Science and EngineeringDelft University of TechnologyMekelweg 2Delft2628 CDThe Netherlands
| | - Max Huisman
- Department of Chemical EngineeringDelft University of Technologyvan der Maasweg 9Delft2629 HZThe Netherlands
| | - Gido Drewes
- Department of Chemical EngineeringDelft University of Technologyvan der Maasweg 9Delft2629 HZThe Netherlands
| | - Tomasz Piskorz
- Department of Chemical EngineeringDelft University of Technologyvan der Maasweg 9Delft2629 HZThe Netherlands
| | - Serhii Mytnyk
- Department of Chemical EngineeringDelft University of Technologyvan der Maasweg 9Delft2629 HZThe Netherlands
| | - Ger J. M. Koper
- Department of Chemical EngineeringDelft University of Technologyvan der Maasweg 9Delft2629 HZThe Netherlands
| | - Eduardo Mendes
- Department of Chemical EngineeringDelft University of Technologyvan der Maasweg 9Delft2629 HZThe Netherlands
| | - Jan H. van Esch
- Department of Chemical EngineeringDelft University of Technologyvan der Maasweg 9Delft2629 HZThe Netherlands
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35
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Pellas V, Hu D, Mazouzi Y, Mimoun Y, Blanchard J, Guibert C, Salmain M, Boujday S. Gold Nanorods for LSPR Biosensing: Synthesis, Coating by Silica, and Bioanalytical Applications. BIOSENSORS 2020; 10:E146. [PMID: 33080925 PMCID: PMC7603250 DOI: 10.3390/bios10100146] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/12/2020] [Accepted: 10/13/2020] [Indexed: 12/20/2022]
Abstract
Nanoparticles made of coinage metals are well known to display unique optical properties stemming from the localized surface plasmon resonance (LSPR) phenomenon, allowing their use as transducers in various biosensing configurations. While most of the reports initially dealt with spherical gold nanoparticles owing to their ease of synthesis, the interest in gold nanorods (AuNR) as plasmonic biosensors is rising steadily. These anisotropic nanoparticles exhibit, on top of the LSPR band in the blue range common with spherical nanoparticles, a longitudinal LSPR band, in all respects superior, and in particular in terms of sensitivity to the surrounding media and LSPR-biosensing. However, AuNRs synthesis and their further functionalization are less straightforward and require thorough processing. In this paper, we intend to give an up-to-date overview of gold nanorods in LSPR biosensing, starting from a critical review of the recent findings on AuNR synthesis and the main challenges related to it. We further highlight the various strategies set up to coat AuNR with a silica shell of controlled thickness and porosity compatible with LSPR-biosensing. Then, we provide a survey of the methods employed to attach various bioreceptors to AuNR. Finally, the most representative examples of AuNR-based LSPR biosensors are reviewed with a focus put on their analytical performances.
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Affiliation(s)
- Vincent Pellas
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
- Institut Parisien de Chimie Moléculaire (IPCM), Sorbonne Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - David Hu
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
| | - Yacine Mazouzi
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
| | - Yoan Mimoun
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
| | - Juliette Blanchard
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
| | - Clément Guibert
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
| | - Michèle Salmain
- Institut Parisien de Chimie Moléculaire (IPCM), Sorbonne Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Souhir Boujday
- Laboratoire de Réactivité de Surface (LRS), Sorbonne Université, CNRS, UMR 7197, 4 Place Jussieu, F-75005 Paris, France; (V.P.); (D.H.); (Y.M.); (Y.M.); (J.B.); (C.G.)
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36
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He Z, Wang G, Liang X, Takarada T, Maeda M. DNA Base Pair Stacking Assembly of Anisotropic Nanoparticles for Biosensing and Ordered Assembly. ANAL SCI 2020; 37:415-423. [PMID: 33071270 DOI: 10.2116/analsci.20scr02] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Anisotropic gold nanoparticles have attracted great interest due to their unique physicochemical properties derived from the shape anisotropy. Manipulation of their interfacial interactions, and thereby the assembling behaviors are often requisite in their applications ranging from optical sensing and diagnosis to self-assembly. Recently, the control of interfacial force based on base pair stacking of DNA terminals have offered a new avenue to surface engineering of nanostructures. In this review, we focus on the DNA base stacking-induced assembly of anisotropic gold nanoparticles, such as nanorods and nanotriangles. The fundamental aspects of anisotropic gold nanoparticles are provided, including the mechanism of the anisotropic growth, the properties arising from the anisotropic shape, and the construction of DNA-grafted anisotropic gold nanoparticles. Then, the advanced applications of their functional assemblies in biosensing and ordered assembly are summarized, followed by a comparison with gold nanospheres. Finally, conclusions and the direction of outlooks are given including future challenges and opportunities in this field.
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Affiliation(s)
- Zhiyu He
- College of Food Science and Engineering, Ocean University of China
| | - Guoqing Wang
- College of Food Science and Engineering, Ocean University of China.,Bioengineering Laboratory, RIKEN Cluster for Pioneering Research.,Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao)
| | - Xingguo Liang
- College of Food Science and Engineering, Ocean University of China.,Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao)
| | - Tohru Takarada
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research
| | - Mizuo Maeda
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research
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37
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Hou TY, Shao FY, Sun YT, Yang KS, Chang WH, Lin CAJ. From mono-PEGylation towards anti-nonspecific protein interaction: comparison of dihydrolipoic acid versus glutathione-capped fluorescent gold nanoclusters using gel electrophoresis. NANOSCALE 2020; 12:17786-17794. [PMID: 32820774 DOI: 10.1039/d0nr03359f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ultrafine fluorescent gold nanoclusters (AuNCs) have emerged as biocompatible nanoprobes for biomedical imaging in vivo, and the precision surface chemistry of AuNCs is the key for attaining their clinical application. Comparison of two promising candidates for future nanomedicine, i.e. dihydrolipoic acid- versus glutathione-capped AuNCs (AuNC@DHLA vs. AuNC@GSH), was conducted for the first time to clarify their polyethylene glycol-related bioconjugate chemistry (PEGylation) and protein interactions. Gel electrophoresis was performed to separate the number of AuNCs PEGylation, and the molecular weight of the PEG spacer dominated the resolution of the separation in the gel. We have engineered and isolated the mono-PEGylated AuNCs either from the indirect carbodiimide bioconjugate chemistry or the direct Au-S binding. One-pot synthesis showed great efficiency for isolating mono-PEGylated AuNC@GSH from the tailored controlled aggregation of Au(i)-thiolate complexes on in situ generated Au(0) cores. Post-PEGylation of AuNC@GSH was also feasible using monodendate thiol-terminated PEG, but bidendate ligands of AuNC@DHLA exhibited low PEGylated efficiency by Au-S binding. In addition, mono-PEGylated AuNC@GSH significantly enhanced the ability of anti-nonspecific protein adsorption, but mono-PEGylated AuNC@DHLA cannot avoid the nonspecific binding with serum albumin. In addition, specific nano-assembly involving mono-biotinylated AuNCs with streptavidin were also compared using gel electrophoresis. These results provide key insights into the selection, preparation and design of functional AuNCs as nanoprobes for versatile biomedical applications.
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Affiliation(s)
- Tzu-Yin Hou
- Department of Biomedical Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan (R.O.C.).
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38
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Kar A, Thambi V, Paital D, Joshi G, Khatua S. Synthesis of Solution-Stable End-to-End Linked Gold Nanorod Dimers via pH-Dependent Surface Reconfiguration. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:9894-9899. [PMID: 32787063 DOI: 10.1021/acs.langmuir.0c01516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
End-to-end dimers of gold nanorods are predicted to be excellent substrates for surface-enhanced spectroscopy. However, the synthesis of solution-stable end-to-end dimers remains challenging. We exploit the pH-dependent configurational change of polyelectrolytes to initiate and terminate the gold nanorod assembly formation to produce end-to-end linked dimers in high yield. The gold nanorods are first overcoated with a polyelectrolyte, and the end-to-end attachment is initiated by adding a thiol linker in acidic medium. The assembly formation is then terminated at the dimer stage by changing the pH of the medium by the addition of an appropriate amount of 1,4-diazabicyclo[2.2.2]octane (DABCO).The nanorod dimers synthesized here are stable in solution for a week without any additional surface encapsulation.
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Affiliation(s)
- Ashish Kar
- Discipline of Chemistry, Indian Institute of Technology Gandhinagar, Gujarat, Gandhinagar 382355, India
| | - Varsha Thambi
- Discipline of Chemistry, Indian Institute of Technology Gandhinagar, Gujarat, Gandhinagar 382355, India
| | - Diptiranjan Paital
- Discipline of Chemistry, Indian Institute of Technology Gandhinagar, Gujarat, Gandhinagar 382355, India
| | - Gayatri Joshi
- Discipline of Chemistry, Indian Institute of Technology Gandhinagar, Gujarat, Gandhinagar 382355, India
| | - Saumyakanti Khatua
- Discipline of Chemistry, Indian Institute of Technology Gandhinagar, Gujarat, Gandhinagar 382355, India
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39
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Mao W, Son YJ, Yoo HS. Gold nanospheres and nanorods for anti-cancer therapy: comparative studies of fabrication, surface-decoration, and anti-cancer treatments. NANOSCALE 2020; 12:14996-15020. [PMID: 32666990 DOI: 10.1039/d0nr01690j] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Various gold nanoparticles have been explored as cancer therapeutics because they can be widely engineered for use as efficient drug carriers and diagnostic agents, and in photo-irradiation therapy. In the current review, we focused on shape-dependent biomedical applications of gold nanoparticles including gold nanospheres and nanorods. Fabrication and functionalization strategies of two different gold nanoparticles for anti-cancer therapy are introduced and the distinguishing performance depending on the shape is discussed to suggest the best carrier shape for specific applications. Moreover, recent advances in anti-cancer immunotherapy using gold nano-carriers are discussed. Thus, this comparative review can be helpful in deciding on suitable shapes and surface-modification strategies for preparing various gold nanoparticle-based therapeutics in anti-cancer therapy.
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Affiliation(s)
- Wei Mao
- Department of Biomedical Materials Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea.
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40
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Blanco-Formoso M, Pazos-Perez N, Alvarez-Puebla RA. Fabrication and SERS properties of complex and organized nanoparticle plasmonic clusters stable in solution. NANOSCALE 2020; 12:14948-14956. [PMID: 32643745 DOI: 10.1039/d0nr04167j] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
SERS activity can be increased by the formation of hot spots at the interparticle junctions of plasmonic nanoparticles in very close proximity, dramatically improving the enhancement factors in comparison with isolated nanoparticles. Controlling the number and geometrical architecture of hot spots, while endowing the clusters with colloidal stability, results in feasible optical sensors, able to provide quantitative SERS responses. Here, we review the approaches proposed to date to produce colloidal stable clusters, focusing on the control of the coordination number of nanoparticle assemblies and interparticle gaps. Clusters of spherical nanoparticles of the same size and rods of the same size are described to subsequently outline core-satellite constructs of nanoparticles of different sizes. Besides, purification processes for nanoparticle clusters are revised to provide efficient production in high yields.
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Affiliation(s)
- Maria Blanco-Formoso
- Department of Physical Chemistry, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - Nicolas Pazos-Perez
- Department of Physical Chemistry, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - Ramon A Alvarez-Puebla
- Department of Physical Chemistry, Universitat Rovira i Virgili, 43007 Tarragona, Spain. and ICREA, Passeig Lluis Companys 23, 08010 Barcelona, Spain
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41
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Kar A, Thambi V, Paital D, Khatua S. In situ modulation of gold nanorod's surface charge drives the growth of end-to-end assemblies from dimers to large networks that enhance single-molecule fluorescence by 10 000-fold. NANOSCALE ADVANCES 2020; 2:2688-2692. [PMID: 36132416 PMCID: PMC9419037 DOI: 10.1039/d0na00303d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 05/04/2020] [Indexed: 06/15/2023]
Abstract
End-to-end assemblies of anisotropic plasmonic nanostructures with small nanogaps are of great interest as they create strong hot spots for enhancing weak fluorescence and/or scattering of molecules. Here we report the growth of dithiol-linked end-to-end assemblies of gold nanorods from dimers to large networks containing thousands of individual nanorods, directed by in situ tuning of nanorod's surface charge. Surface charge was lowered to initiate the aggregation process but was subsequently increased to achieve slow tip-specific growth over seven days to form end-to-end networks of nanorods, which were stable in solution for over one month. Furthermore, we showed that these assemblies contained strong plasmonic hot spots which enhanced the fluorescence signal of a weak emitter by 104-fold. This enhancement is approximately 10-fold larger than that obtained using a single gold nanorod and is comparable to the largest enhancement obtained using more expensive lithographically made in-plane antenna arrays.
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Affiliation(s)
- Ashish Kar
- Chemistry Discipline, Indian Institute of Technology Gandhinagar Palaj Gujarat 382355 India
| | - Varsha Thambi
- Chemistry Discipline, Indian Institute of Technology Gandhinagar Palaj Gujarat 382355 India
| | - Diptiranjan Paital
- Chemistry Discipline, Indian Institute of Technology Gandhinagar Palaj Gujarat 382355 India
| | - Saumyakanti Khatua
- Chemistry Discipline, Indian Institute of Technology Gandhinagar Palaj Gujarat 382355 India
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42
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Abstract
Topical drug delivery has inherent advantages over other administration routes. However, the existence of stratum corneum limits the diffusion to small and lipophilic drugs. Fortunately, the advancement of nanotechnology brings along opportunities to address this challenge. Taking the unique features in size and surface chemistry, nanocarriers such as liposomes, polymeric nanoparticles, gold nanoparticles, and framework nucleic acids have been used to bring drugs across the skin barrier to epidermis and dermis layers. This article reviews the development of these formulations and focuses on their applications in the treatment of skin disorders such as acne, skin inflammation, skin infection, and wound healing. Existing hurdles and further developments are also discussed.
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Affiliation(s)
- Mingyue Cui
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637457
| | - Christian Wiraja
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637457
| | - Sharon Wan Ting Chew
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637457
| | - Chenjie Xu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637457.,National Dental Centre of Singapore, 5 Second Hospital Avenue, Singapore 168938.,Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, China
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43
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Kim HJ, Wang W, Travesset A, Mallapragada SK, Vaknin D. Temperature-Induced Tunable Assembly of Columnar Phases of Nanorods. ACS NANO 2020; 14:6007-6012. [PMID: 32348115 DOI: 10.1021/acsnano.0c01540] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We report on the assembly of gold nanorods functionalized with poly(ethylene glycol) in aqueous suspensions by electrostatic control and hydrogen bonds provided by polyelectrolyte linkers (i.e., interpolymer complexation processes). Small-angle X-ray scattering reveals that the quality and stability of the assemblies into the hexagonal columnar phases increase with temperature. Our study shows that the lattice constant of the ordered structures is tunable over a wide range of values by the interplay between electrostatic and hydrophobic effects.
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Affiliation(s)
- Hyeong Jin Kim
- Ames Laboratory and Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Wenjie Wang
- Division of Materials Sciences and Engineering, Ames Laboratory, U.S. DOE, Ames, Iowa 50011, United States
| | - Alex Travesset
- Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States
| | - Surya K Mallapragada
- Ames Laboratory and Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - David Vaknin
- Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States
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44
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Tao Y, Li M, Liu X, Leong KW, Gautier J, Zha S. Dual-Color Plasmonic Nanosensor for Radiation Dosimetry. ACS APPLIED MATERIALS & INTERFACES 2020; 12:22499-22506. [PMID: 32337977 PMCID: PMC7346094 DOI: 10.1021/acsami.0c03001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Radiation dosimeters are critical for accurately assessing the levels of radiation exposure of tumor sites and surrounding tissues and for optimizing therapeutic interventions as well as for monitoring environmental exposure. To fill the need for a simple, user-friendly, and inexpensive dosimeter, we designed an innovative colorimetric nanosensor-based assay for detecting ionizing radiation. We show that hydroxyl radicals generated by ionizing radiation can be used to etch gold nanorods (AuNRs) and silver nanoprisms (AgNPRs), yielding reproducible color changes for radiation dose detection in the range of 50-2000 rad, broad enough to cover doses used in hyperfractionated, conventional, and hypofractionated radiotherapy. This range of doses detected by this assay correlates with radiation-induced DNA damage response in mammalian cells. Furthermore, this AuNR- and AgNPR-based sensing platform has been established in a paper format that can be readily adopted for a wide range of applications and translation.
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Affiliation(s)
- Yu Tao
- Institute for Cancer Genetics, Columbia University, New York, New York 10032, United States
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Mingqiang Li
- Department of Biomedical Engineering, Columbia University, New York, New York 10027, United States
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Xiangyu Liu
- Institute for Cancer Genetics, Columbia University, New York, New York 10032, United States
| | - Kam W Leong
- Department of Biomedical Engineering, Columbia University, New York, New York 10027, United States
| | - Jean Gautier
- Institute for Cancer Genetics, Columbia University, New York, New York 10032, United States
- Department of Genetics and Development, Columbia University, New York, New York 10032, United States
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, New York 10032, United States
| | - Shan Zha
- Institute for Cancer Genetics, Columbia University, New York, New York 10032, United States
- Department of Pediatrics, Pathology and Cell Biology, Immunology and Microbiology, Columbia University, New York, New York 10032, United States
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, New York 10032, United States
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45
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Peng M, Sun F, Na N, Ouyang J. Target-Triggered Assembly of Nanogap Antennas to Enhance the Fluorescence of Single Molecules and Their Application in MicroRNA Detection. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000460. [PMID: 32309897 DOI: 10.1002/smll.202000460] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
Nanogap antennas are plasmonic nanostructures with a strong electromagnetic field generated at the gap region of two neighboring particles owing to the coupling of the collective surface plasmon resonance. They have great potential for improving the optical properties of fluorophores. Herein, nanogap antennas are constructed using an aqueous solution-based method to overcome the defects of weak fluorescence and photobleaching associated with traditional organic dyes, and a highly sensitive nanogap antenna-based sensing strategy is presented for the detection of low-abundance nucleic acid biomarkers via a target-triggered strand displacement amplification (SDA) reaction between two DNA hairpins that are tagged to the tips of gold nanorods (Au NRs). In the presence of targets, end-to-end Au NR dimers gradually form, and the fluorophores quenched by the Au NRs exhibit a dramatic fluorescence enhancement due to the plasmon-enhanced fluorescence effect of nanogap antennas. Meanwhile, the SDA reaction results in secondary amplification of fluorescence signals. Combined with single-molecule counting, this method applied in miRNA-21 detection can achieve a low detection limit of 97.2 × 10-18 m. Moreover, accurate discrimination between different cells through miRNA-21 imaging demonstrates the potential of this method in monitoring the expression level of low-abundance nucleic acid biomarkers.
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Affiliation(s)
- Manshu Peng
- State Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Feifei Sun
- State Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Na Na
- State Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Jin Ouyang
- State Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, China
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46
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Botequim D, Silva IIR, Serra SG, Melo EP, Prazeres DMF, Costa SMB, Paulo PMR. Fluorescent dye nano-assemblies by thiol attachment directed to the tips of gold nanorods for effective emission enhancement. NANOSCALE 2020; 12:6334-6345. [PMID: 32133478 DOI: 10.1039/d0nr00267d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The conjugation of dye-labelled DNA oligonucleotides with gold nanorods has been widely explored for the development of multifunctional fluorescent nanoprobes. Here, we show that the functionalization route is crucial to achieve enhanced emission in dye nano-assemblies based on gold nanorods. By using a tip-selective approach for thiol attachment of dye molecules onto gold nanorods, it was possible to effectively increase the emission by more than 10-fold relatively to that of a free dye. On the other hand, a non-selective approach revealed that indiscriminate surface functionalization has a detrimental effect on the enhancement. Simulations of discrete dipole approximation gave further insight into the surface distribution of plasmon-enhanced emission by confirming that tip regions afford an effective enhancement, while side regions exhibit a negligible effect or even emission quenching. The contrast between dye nano-assemblies obtained from tip- and non-selective functionalization was further characterized by single-particle fluorescence emission. These studies showed that tip-functionalized gold nanorods with an average of only 30 dye molecules have a comparable to or even stronger emission than non-selectively functionalized particles with approximately 10 times more dye molecules. The results herein reported could significantly improve the performance of dye nano-assemblies for imaging or sensing applications.
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Affiliation(s)
- David Botequim
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal. and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal.
| | - Inês I R Silva
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal.
| | - Sofia G Serra
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal.
| | - Eduardo P Melo
- CCMAR - Centro de Ciências do Mar, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - Duarte M F Prazeres
- iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal.
| | - Sílvia M B Costa
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal.
| | - Pedro M R Paulo
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal.
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47
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Trotsiuk L, Muravitskaya A, Kulakovich O, Guzatov D, Ramanenka A, Kelestemur Y, Demir HV, Gaponenko S. Plasmon-enhanced fluorescence in gold nanorod-quantum dot coupled systems. NANOTECHNOLOGY 2020; 31:105201. [PMID: 31751975 DOI: 10.1088/1361-6528/ab5a0e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Plasmon-exciton coupling is of great importance to many optical devices and applications. One of the coupling manifestations is plasmon-enhanced fluorescence. Although this effect is demonstrated in numerous experimental and theoretical works, there are different particle shapes for which this effect is not fully investigated. In this work electrostatic complexes of gold nanorods and CdSe/CdZnS quantum dots were studied. Double-resonant gold nanorods have an advantage of the simultaneous enhancement of the absorption and emission when the plasmon bands match the excitation and fluorescence wavelengths of an emitter. A relationship between the concentration of quantum dots in the complexes and the enhancement factor was established. It was demonstrated that the enhancement factor is inversely proportional to the concentration of quantum dots. The maximal fluorescence enhancement by 10.8 times was observed in the complex with the smallest relative concentration of 2.5 quantum dots per rod and approximately 5 nm distance between them. Moreover, the influence of quantum dot location on the gold nanorod surface plays an important role. Theoretical study and experimental data indicate that only the position near the nanorod ends provides the enhancement. At the same time, the localization of quantum dots on the sides of the nanorods leads to the fluorescence quenching.
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Affiliation(s)
- Liudmila Trotsiuk
- B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk 220072, Belarus
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Li W, Palis H, Mérindol R, Majimel J, Ravaine S, Duguet E. Colloidal molecules and patchy particles: complementary concepts, synthesis and self-assembly. Chem Soc Rev 2020; 49:1955-1976. [DOI: 10.1039/c9cs00804g] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
About the latest developments regarding self-assembly of textured colloids and its prospects.
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Affiliation(s)
- Weiya Li
- Univ. Bordeaux
- CNRS
- ICMCB
- UMR 5026
- Pessac
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49
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Dynamic supraparticles for the treatment of age-related diseases. Sci Bull (Beijing) 2019; 64:1850-1874. [PMID: 36659581 DOI: 10.1016/j.scib.2019.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/28/2019] [Accepted: 07/29/2019] [Indexed: 01/21/2023]
Abstract
Age-related diseases (ARDs) are arising as a major threat to public health in our fast-aging society. Current development of nanomedicine has sparked much optimism toward ARDs management by improving drug delivery and controlled drug release. However, effective treatments for ARDs, such as cancer and Alzheimer's diseases (AD), are still lacking, due to the complicated pathological features of ARDs including multifactorial pathogenesis, intricate disease microenvironment, and dynamic symptom manifestation. Recently, dynamic supraparticles (DS), which are reversibly self-assembled functional nanoparticles, have provided a novel strategy for combating ARDs. Besides the intrinsic advantages of nanomedicine including multifunctional and multitarget, DS are capable of dynamic structural reconfiguration upon certain stimulation, creating another layer of maneuverability that allows programmed response to the spatiotemporal alterations of ARDs during progression and treatment. In this review, we will overview the challenges faced by ARDs management, and discuss the unique opportunities brought by DS. Then, we will summarize the designed synthesis of DS for ARDs treatment. Finally, we will dissect the therapeutic targets in ARDs that can be exploited by DS, and present the encouraging advances in this field. Hopefully, this review will bridge our knowledge of the design principle of DS and ARDs management, which may inspire the future development of potent theranostic agents to improve the healthcare.
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50
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He MQ, Chen S, Yao K, Meng J, Wang K, Yu YL, Wang JH. Precisely Tuning LSPR Property via “Peptide-Encoded” Morphological Evolution of Gold Nanorods for Quantitative Visualization of Enzyme Activity. Anal Chem 2019; 92:1395-1401. [DOI: 10.1021/acs.analchem.9b04573] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Meng-Qi He
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Shuai Chen
- College of Life and Health Sciences, Northeastern University, Shenyang 110169, China
| | - Kan Yao
- Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jie Meng
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Kun Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Yong-Liang Yu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
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