101
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Alkan F, Aikens CM. Understanding plasmon coupling in nanoparticle dimers using molecular orbitals and configuration interaction. Phys Chem Chem Phys 2019; 21:23065-23075. [PMID: 31602447 DOI: 10.1039/c9cp03890f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We perform a theoretical investigation of the electronic structure and optical properties of atomic nanowire and nanorod dimers using DFT and TDDFT. In both systems at separation distances larger than 0.75 nm, optical spectra show a single feature that resembles the bonding dipole plasmon (BDP) mode. A configuration interaction (CI) analysis shows that the BDP mode arises from constructive coupling of transitions, whereas the destructive coupling does not produce significant oscillator strength for such separation distances. At shorter separation distances, both constructive and destructive coupling produce oscillator strength due to wave-function overlap, which results in multiple features in the calculated spectra. Our analysis shows that a charge-transfer plasmon (CTP) mode arises from destructive coupling of transitions, whereas the BDP results from constructive coupling of the same transitions at shorter separation distances. Furthermore, the coupling elements between these transitions are shown to depend heavily on the amount of exact Hartree-Fock exchange (HFX) in the functional, which affects the splitting of CTP and BDP modes. With 50% HFX or more, the CTP and BDP modes mainly merge into a single feature in the spectra. These findings suggest that the effects of exact exchange must be assessed during the prediction of CTP modes in plasmonic systems.
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Affiliation(s)
- Fahri Alkan
- Department of Material Science & Nanotechnology Engineering, Abdullah Gül University, Kayseri 38080, Turkey
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102
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Ranganathan V, Srinivasan S, Singh A, DeRosa MC. An aptamer-based colorimetric lateral flow assay for the detection of human epidermal growth factor receptor 2 (HER2). Anal Biochem 2019; 588:113471. [PMID: 31614117 DOI: 10.1016/j.ab.2019.113471] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 12/31/2022]
Abstract
An aptamer-based colorimetric lateral flow assay was developed for the detection of human epidermal growth factor receptor 2 (HER2). In this study, two approaches were examined using HER2 binding aptamers and gold nanoparticles. The first method used was a solution-based adsorption-desorption colorimetric approach wherein aptamers were adsorbed onto the gold nanoparticle surface. Upon the addition of HER2, HER2 binds specifically with its aptamer, releasing the gold nanoparticles. Addition of NaCl then induces the formation of gold nanoparticle aggregates. This leads to a color change from red to blue and a detection limit of 10 nM was achieved. The second method used an adsorption-desorption colorimetric lateral flow assay approach wherein biotin-modified aptamers were adsorbed onto the gold nanoparticle surface in the absence of HER2. In the presence of HER2, HER2 specifically binds with its aptamer leading to release of the gold nanoparticles. These solutions were applied to the lateral flow assay format and a detection limit of 20 nM was achieved. Both colorimetric and lateral flow assays are inexpensive, simple, rapid to perform and produce results visible to the naked-eye.
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Affiliation(s)
- Velu Ranganathan
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
| | - Sathya Srinivasan
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada; Department of Biotechnology, School of Bioscience and Technology, VIT Vellore, Vellore, 632 104, TN, India
| | - Aryan Singh
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
| | - Maria C DeRosa
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
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103
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Sethi A, Rafiee M, Chandra S, Ahmed H, McCormack S. Unified Methodology for Fabrication and Quantification of Gold Nanorods, Gold Core Silver Shell Nanocuboids, and Their Polymer Nanocomposites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13011-13019. [PMID: 31525940 DOI: 10.1021/acs.langmuir.9b01481] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A multitude of applications is related to the unique properties of absorption, scattering, and plasmon-enhanced phenomena of metal nanoparticles (MNPs). The aqueous colloidal-based synthesis of MNPs is used more widely as it allows precise shape and size control. However, for various applications, it is required to have the MNPs in an organic solvent or polymer that is compatible with the MNPs. This work establishes a protocol from the synthesis to the phase transfer process of gold nanorods and gold core silver shell nanocuboids (Au@Ag NCs) in dichloromethane. Subsequent dispersion in a polymer (silicone encapsulant polymer) is achieved while retaining the MNPs' plasmonic properties. Au@Ag NCs have not been transferred to an organic solvent to date due to their unique shape and instability in the organic phase. The established protocol is reproducible, and MNPs were found to be stable for up to a year in the polymer. Qualitative and quantitative validation of the experimental results is achieved on MNP concentration by a model based on the finite difference time domain method. Using the model, the concentration of MNPs in nanocomposite can be determined.
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Affiliation(s)
- Arunima Sethi
- School of Engineering , Trinity College Dublin , Dublin D02 PN40 , Ireland
| | - Mehran Rafiee
- School of Engineering , Trinity College Dublin , Dublin D02 PN40 , Ireland
| | - Subhash Chandra
- School of Engineering , Trinity College Dublin , Dublin D02 PN40 , Ireland
| | - Hind Ahmed
- School of Engineering , Trinity College Dublin , Dublin D02 PN40 , Ireland
| | - Sarah McCormack
- School of Engineering , Trinity College Dublin , Dublin D02 PN40 , Ireland
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104
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Paris JL, Baeza A, Vallet-Regí M. Overcoming the stability, toxicity, and biodegradation challenges of tumor stimuli-responsive inorganic nanoparticles for delivery of cancer therapeutics. Expert Opin Drug Deliv 2019; 16:1095-1112. [DOI: 10.1080/17425247.2019.1662786] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Juan L. Paris
- Department of Life Sciences, Nano4Health Unit, Nanomedicine Group. International Iberian Nanotechnology Laboratory (INL). Av. Mestre José Veiga s/n, Braga, Portugal
| | - Alejandro Baeza
- Materials and Aeroespatial Production Department, Polymer Materials Research Group, Madrid, Spain
| | - María Vallet-Regí
- Dpto. Química en Ciencias Farmacéuticas (Unidad Docente de Química Inorgánica y Bioinorgánica), Facultad de Farmacia, UCM, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain
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105
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Guan YH, Tian M, Liu XY, Wang YN. Preparation of novel cisplatin-conjugated hollow gold nanospheres for targeting cervical cancer. J Cell Physiol 2019; 234:16475-16484. [PMID: 30790270 DOI: 10.1002/jcp.28316] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 01/22/2019] [Accepted: 01/24/2019] [Indexed: 01/24/2023]
Abstract
Cervical cancer is a deadly gynecological malignancy in need of innovative treatment strategies. Emerging preclinical data has suggested the benefits of nanocarriers over the traditional chemotherapy for cancer treatment. In particular, gold nanoparticles are gaining popularity due to gold's inert nature, limited side effects, good cytocompatibility, and flexibility in preparation/modification. We conjugated polyethylene glycol (PEG) with hollow gold nanospheres (HGNs) and loaded the pegylated HGNs with an anticancer drug, cisplatin to target cervical cancer. HGNs were irradiated with noninfrared laser to increase the penetration of drug into tumor tissue and improve the delivery of cisplatin. We investigated the comparative characterization studies of prepared cisplatin loaded pegylated HGNs (cis PEG-HGNs), free cisplatin, cisplatin loaded HGNs (cis-HGNs), cis PEG-HGNs without laser, and cis PEG-HGNs with laser and its effects over cervical cancer cells. Transmission electron microscopy photomicrographs confirmed the integrity of prepared HGNs. While no significant difference was observed between encapsulation efficiency and drug loading of cis-HGNs (84.6%) and cis PEG-HGNs (86.7%), the encapsulation efficiency increased almost twice in HGNs, compared with control gold nanoparticles (GNs) because of the hollow cavity in HGNs. In-vitro cytotoxicity was measured by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay using HeLa cells. With irradiation, HGNs induced much elevated cytotoxicity. Not only HGNs were internalized by HeLa cells, they were retained in the cellular compartment. We also tested formulations in vivo and observed that the irradiated cis-HGNs and cis PEG-HGNs were most effective in regressing tumors in mice.
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Affiliation(s)
- Yong-Hong Guan
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
| | - Miao Tian
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
| | - Xian-Ying Liu
- Department of Medical Affairs, The Second Hospital of Jilin University, Changchun, China
| | - Yi-Nan Wang
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
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106
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107
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108
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Qiu C, Zhao C, Sun X, Deng S, Zhuang G, Zhong X, Wei Z, Yao Z, Wang JG. Multiscale Simulation of Morphology Evolution of Supported Pt Nanoparticles via Interfacial Control. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6393-6402. [PMID: 31023009 DOI: 10.1021/acs.langmuir.9b00129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The structural and electronic properties of the interface are critical for the morphology of supported metal nanoparticles and thus the performance in catalysis, photonics, biomedical research, and other areas. To reveal the intrinsic mechanism of the formation of various morphologies, a multiscale simulation strategy is adopted to bridge the macroscopic structures by experimental observations and microscopic properties by theoretical calculations. This strategy incorporates the density functional theory (DFT) for the interaction energy calculation, the molecular dynamics (MD) simulation for the structure evolution, and theoretical model for the correlation with contact angles. The interaction energies between Pt atoms (four-atom clusters) and substrates are applied for the force field parametrization in the following MD simulation. Simulation results show the binding energies and structural properties such as radial distribution function and coordination number for supported metal nanoparticles with various sizes in detail. Notably, the contact angles of supported nanoparticles are well correlated by the strength of metal-support interactions. This work yields guidelines on the structure modulation of supported metal nanoparticles via interfacial control.
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Affiliation(s)
- Chenglong Qiu
- Institute of Industrial Catalysis, College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - ChenXia Zhao
- Institute of Industrial Catalysis, College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Xiang Sun
- Institute of Industrial Catalysis, College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Shengwei Deng
- Institute of Industrial Catalysis, College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Guilin Zhuang
- Institute of Industrial Catalysis, College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Xing Zhong
- Institute of Industrial Catalysis, College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - ZhongZhe Wei
- Institute of Industrial Catalysis, College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Zihao Yao
- Institute of Industrial Catalysis, College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Jian-Guo Wang
- Institute of Industrial Catalysis, College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
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109
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Onaciu A, Braicu C, Zimta AA, Moldovan A, Stiufiuc R, Buse M, Ciocan C, Buduru S, Berindan-Neagoe I. Gold nanorods: from anisotropy to opportunity. An evolution update. Nanomedicine (Lond) 2019; 14:1203-1226. [PMID: 31075049 DOI: 10.2217/nnm-2018-0409] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Gold nanoparticles have drawn attention to nanomedicine for many years due to their physicochemical properties, which include: good stability; biocompatibility; easy surface chemistry and superior magnetic; and last, electronic properties. All of these properties distinguish gold nanoparticles as advantageous carriers to be exploited. The challenge to develop new gold nanostructures has led to anisotropy, a new property to exploit for various medical applications: diagnostic and imaging strategies as well as therapeutic options. Gold nanorods are the most studied anisotropic gold nanoparticles because of the presence of two absorption peaks according to their longitudinal and transversal plasmon resonances. The longitudinal surface plasmonic resonance can provide the absorption in the near-infrared region and this is an important aspect of using gold nanorods for medical purposes.
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Affiliation(s)
- Anca Onaciu
- Animal Facility Department, MedFuture - Research Center for Advanced Medicine, ''Iuliu Haţieganu'' University of Medicine & Pharmacy, Cluj-Napoca, Romania
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine & Translational Medicine, ''Iuliu Haţieganu'' University of Medicine & Pharmacy, Cluj-Napoca, Romania
| | - Alina-Andreea Zimta
- Cellular Therapies Department, MedFuture - Research Center for Advanced Medicine, ''Iuliu Haţieganu'' University of Medicine & Pharmacy, Cluj-Napoca, Romania
| | - Alin Moldovan
- Bionanoscopy Department, MedFuture - Research Center for Advanced Medicine, ''Iuliu Haţieganu'' University of Medicine & Pharmacy, Cluj-Napoca, Romania
| | - Rares Stiufiuc
- Bionanoscopy Department, MedFuture - Research Center for Advanced Medicine, ''Iuliu Haţieganu'' University of Medicine & Pharmacy, Cluj-Napoca, Romania.,Pharmaceutical Physics-Biophysics Department, Faculty of Pharmacy, ''Iuliu Haţieganu'' University of Medicine & Pharmacy, Cluj-Napoca, Romania
| | - Mihail Buse
- Cellular Therapies Department, MedFuture - Research Center for Advanced Medicine, ''Iuliu Haţieganu'' University of Medicine & Pharmacy, Cluj-Napoca, Romania
| | - Cristina Ciocan
- Clinical Studies Department, MedFuture - Research Center for Advanced Medicine, ''Iuliu Haţieganu'' University of Medicine & Pharmacy, Cluj-Napoca, Romania
| | - Smaranda Buduru
- Prosthetics & Dental Materials Department, Faculty of Dental Medicine, ''Iuliu Haţieganu'' University of Medicine & Pharmacy, Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- Animal Facility Department, MedFuture - Research Center for Advanced Medicine, ''Iuliu Haţieganu'' University of Medicine & Pharmacy, Cluj-Napoca, Romania.,Research Center for Functional Genomics, Biomedicine & Translational Medicine, ''Iuliu Haţieganu'' University of Medicine & Pharmacy, Cluj-Napoca, Romania.,Functional Genomics & Experimental Pathology Department, The Oncology Institute "Prof. Dr. Ion Chiricuţa", Cluj-Napoca, Romania
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110
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Shrivastava M, Srivastav A, Gandhi S, Rao S, Roychoudhury A, Kumar A, Singhal R, Jha SK, Singh S. Monitoring of engineered nanoparticles in soil-plant system: A review. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.enmm.2019.100218] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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111
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Knights OB, Ye S, Ingram N, Freear S, McLaughlan JR. Optimising gold nanorods for photoacoustic imaging in vitro. NANOSCALE ADVANCES 2019; 1:1472-1481. [PMID: 36132606 PMCID: PMC9418455 DOI: 10.1039/c8na00389k] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 02/01/2019] [Indexed: 05/20/2023]
Abstract
Gold nanorods (AuNRs) can be synthesised with different sizes but similar aspect ratios and therefore similar surface plasmon resonances (SPRs). Their strong optical absorbance governed by their SPRs facilitates their ability to be used as molecular-targeted contrast agents for photoacoustic (PA) imaging. The size of AuNRs has an effect on the PA conversion efficiency, melting threshold, and cytotoxicity, indicating that size can have a significant impact on overall biomedical efficacy. We investigated these factors for four different AuNRs (widths of 10, 25, 40 and 50 nm) all with SPRs of 815 ± 26 nm. A size-dependent linear relationship between fluence and PA amplitude was observed, along with particle melting. Reshaping was confirmed via transmission electron microscopy and spectrophotometry at a laser fluence of 11 ± 1.7 mJ cm-2, 20 ± 2.2 mJ cm-2, and 40 ± 2.6 mJ cm-2. Cytotoxicity was tested on lung cancer cells (A549) via a colourimetric assay at a maximum concentration of 3 × 1010 NP ml-1. Results demonstrate the 40 nm and 50 nm AuNRs produced the highest signal for equivalent particle numbers, but displayed the highest toxicity. Conversely, the 10 nm AuNRs were the most efficient photoacoustic converters, at equivalent total mass. This study demonstrates the importance of AuNR size and concentration on selection of AuNRs for their eventual clinical use.
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Affiliation(s)
- Oscar B Knights
- School of Electronic and Electrical Engineering, University of Leeds Leeds LS2 9JT UK
| | - Sunjie Ye
- School of Physics and Astronomy, University of Leeds Leeds LS2 9JT UK
- Leeds Institute of Medical Research, University of Leeds, St. James's University Hospital Leeds LS9 7TF UK
| | - Nicola Ingram
- Leeds Institute of Medical Research, University of Leeds, St. James's University Hospital Leeds LS9 7TF UK
| | - Steven Freear
- School of Electronic and Electrical Engineering, University of Leeds Leeds LS2 9JT UK
| | - James R McLaughlan
- School of Electronic and Electrical Engineering, University of Leeds Leeds LS2 9JT UK
- Leeds Institute of Medical Research, University of Leeds, St. James's University Hospital Leeds LS9 7TF UK
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112
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Abstract
Nonlocal and quantum effects play an important role in accurately modeling the optical response of nanometer-sized metallic nanoparticles. These effects cannot be described by conventional classical theories, as they neglect essential microscopic details. Quantum hydrodynamic theory (QHT) has emerged as an excellent tool to correctly predict the nonlocal and quantum effects by taking into account the spatial dependence of the charge density. In this article, we used a QHT to investigate the impact of nonlocality and electron spill-out on the plasmonic behavior of spherical Na and Au nanoshells. We adopted a self-consistent way to compute the equilibrium charge density. The results predicted by QHT were compared with those obtained with the local response approximation (LRA) and the Thomas–Fermi hydrodynamic theory (TFHT). We found that nonlocal effects have a strong impact on both the near- and far-field optical properties of nanoshells, in particular, for the antibonding resonant mode. We also investigated the optical response of these systems for different thicknesses of the shell, both for Na and Au metals.
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113
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Velu R, DeRosa MC. Lateral flow assays for Ochratoxin A using metal nanoparticles: comparison of "adsorption-desorption" approach to linkage inversion assembled nano-aptasensors (LIANA). Analyst 2019; 143:4566-4574. [PMID: 30112551 DOI: 10.1039/c8an00963e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nano-aptamer probes were prepared and used in lateral flow colorimetric assays for the detection of Ochratoxin A (OTA). In this study, two approaches were examined using 5'-biotin-modified OTA aptamers and silver or gold nanoparticles (AgNP or AuNP). The first method used an "adsorption-desorption" approach wherein aptamers were adsorbed onto the metal nanoparticle surface. Upon the addition of OTA, the aptamer binds specifically to the target, releasing the NPs. The above solutions were applied on a lateral flow assay (LFA) and a detection limit of 6.3 nM was achieved with both metal nanoparticles. The second method used a labelled approach based on Linkage Inversion Assembled Nano-Aptasensors (LIANAs) using a DNA linker containing a 5'-5' linkage inversion (5'-5' linker) to assemble biotinylated aptamer-functionalized metal nanoparticles. In the presence of target, OTA specifically binds with its aptamer leading to release of the linker and disassembly of LIANA aggregates into dispersed nanoparticles. The same solutions were applied in LFA format and the lowest detection limit of 0.63 nM was achieved. The results indicated that the LIANA-based LFA strips were more sensitive than the "adsoprtion-desorption" LFAs. Both lateral flow assays are inexpensive, simple, and rapid to perform and produces results visible to the naked-eye.
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Affiliation(s)
- Ranganathan Velu
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
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114
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Vines JB, Yoon JH, Ryu NE, Lim DJ, Park H. Gold Nanoparticles for Photothermal Cancer Therapy. Front Chem 2019; 7:167. [PMID: 31024882 PMCID: PMC6460051 DOI: 10.3389/fchem.2019.00167] [Citation(s) in RCA: 395] [Impact Index Per Article: 79.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 03/05/2019] [Indexed: 12/14/2022] Open
Abstract
Gold is a multifunctional material that has been utilized in medicinal applications for centuries because it has been recognized for its bacteriostatic, anticorrosive, and antioxidative properties. Modern medicine makes routine, conventional use of gold and has even developed more advanced applications by taking advantage of its ability to be manufactured at the nanoscale and functionalized because of the presence of thiol and amine groups, allowing for the conjugation of various functional groups such as targeted antibodies or drug products. It has been shown that colloidal gold exhibits localized plasmon surface resonance (LPSR), meaning that gold nanoparticles can absorb light at specific wavelengths, resulting in photoacoustic and photothermal properties, making them potentially useful for hyperthermic cancer treatments and medical imaging applications. Modifying gold nanoparticle shape and size can change their LPSR photochemical activities, thereby also altering their photothermal and photoacoustic properties, allowing for the utilization of different wavelengths of light, such as light in the near-infrared spectrum. By manufacturing gold in a nanoscale format, it is possible to passively distribute the material through the body, where it can localize in tumors (which are characterized by leaky blood vessels) and be safely excreted through the urinary system. In this paper, we give a quick review of the structure, applications, recent advancements, and potential future directions for the utilization of gold nanoparticles in cancer therapeutics.
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Affiliation(s)
| | - Jee-Hyun Yoon
- Department of Herbology, College of Korean Medicine, Woosuk UniversityJeonju, South Korea
| | - Na-Eun Ryu
- School of Integrative Engineering, Chung-Ang UniversitySeoul, South Korea
| | - Dong-Jin Lim
- Otolaryngology Head and Neck Surgery, University of Alabama at BirminghamBirmingham, AL, United States
| | - Hansoo Park
- School of Integrative Engineering, Chung-Ang UniversitySeoul, South Korea
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115
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Nisticò R, Rivolo P, Giorgis F. Tips and Tricks for the Surface Engineering of Well-Ordered Morphologically Driven Silver-Based Nanomaterials. ChemistryOpen 2019; 8:508-519. [PMID: 31061776 PMCID: PMC6488201 DOI: 10.1002/open.201900007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/10/2019] [Indexed: 11/30/2022] Open
Abstract
Particularly-shaped silver nanostructures are successfully applied in many scientific fields, such as nanotechnology, catalysis, (nano)engineering, optoelectronics, and sensing. In recent years, the production of shape-controlled silver-based nanostructures and the knowledge around this topic has grown significantly. Hence, on the basis of the most recent results reported in the literature, a critical analysis around the driving forces behind the synthesis of such nanostructures are proposed herein, pointing out the important role of surface-regulating agents in driving crystalline growth by favoring (or opposing) development along specific directions. Additionally, growth mechanisms of the different morphologies considered here are discussed in depth, and critical points highlighted.
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Affiliation(s)
- Roberto Nisticò
- Department of Applied Science and Technology DISATPolytechnic of TorinoC.so Duca degli Abruzzi 2410129TorinoItaly
| | - Paola Rivolo
- Department of Applied Science and Technology DISATPolytechnic of TorinoC.so Duca degli Abruzzi 2410129TorinoItaly
| | - Fabrizio Giorgis
- Department of Applied Science and Technology DISATPolytechnic of TorinoC.so Duca degli Abruzzi 2410129TorinoItaly
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116
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Riley KR, El Hadri H, Tan J, Hackley VA, MacCrehan WA. High separation efficiency of gold nanomaterials of different aspect ratio and size using capillary transient isotachophoresis. J Chromatogr A 2019; 1598:216-222. [PMID: 30948041 DOI: 10.1016/j.chroma.2019.03.054] [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: 10/23/2018] [Revised: 03/17/2019] [Accepted: 03/23/2019] [Indexed: 11/25/2022]
Abstract
Two modes of capillary electrophoresis (CE), capillary zone electrophoresis (CZE) and capillary transient isotachophoresis (ctITP), were compared for the detection and separation of spherical gold nanoparticles (AuNPs) and gold nanorods (AuNRs). The development of ctITP using two different leading ions is described. Overall, when compared to traditional capillary zone electrophoresis (CZE), ctITP resulted in improved peak shape and peak efficiency. Specifically, the number of theoretical plates for AuNR samples increased by a factor of 2-2.5 depending on the choice of leading ion. Further, using ctITP two AuNRs differing by aspect ratio were baseline resolved, whereas the same AuNRs could not be separated using CZE or other techniques like single particle inductively coupled plasma mass spectrometry (spICP-MS) and asymmetric flow field-flow fractionation (AF4). The results of this study demonstrate that ctITP is an efficient on-line technique for the improved detection and separation of gold nanomaterials in CE.
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Affiliation(s)
- Kathryn R Riley
- National Institute of Standards and Technology, Material Measurement Laboratory - Chemical Sciences Division, 100 Bureau Drive, Gaithersburg, MD, 20899, USA.
| | - Hind El Hadri
- National Institute of Standards and Technology, Material Measurement Laboratory - Materials Measurement Science Division, 100 Bureau Drive, Gaithersburg, MD, 20899, USA
| | - Jiaojie Tan
- National Institute of Standards and Technology, Material Measurement Laboratory - Materials Measurement Science Division, 100 Bureau Drive, Gaithersburg, MD, 20899, USA
| | - Vincent A Hackley
- National Institute of Standards and Technology, Material Measurement Laboratory - Materials Measurement Science Division, 100 Bureau Drive, Gaithersburg, MD, 20899, USA
| | - William A MacCrehan
- National Institute of Standards and Technology, Material Measurement Laboratory - Chemical Sciences Division, 100 Bureau Drive, Gaithersburg, MD, 20899, USA
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117
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Cortie MB, Cortie DL, Timchenko V. Heat transfer from nanoparticles for targeted destruction of infectious organisms. Int J Hyperthermia 2019; 34:157-167. [PMID: 29498311 DOI: 10.1080/02656736.2017.1410236] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Whereas the application of optically or magnetically heated nanoparticles to destroy tumours is now well established, the extension of this concept to target pathogens has barely begun. Here we examine the challenge of targeting pathogens by this means and, in particular, explore the issues of power density and heat transfer. Depending on the rate of heating, either hyperthermia or thermoablation may occur. This division of the field is fundamental and implies very different sources of excitation and heat transfer for the two modes, and different strategies for their clinical application. Heating by isolated nanoparticles and by agglomerates of nanoparticles is compared: hyperthermia is much more readily achieved with agglomerates and for large target volumes, a factor which favours magnetic excitation and moderate power densities. In contrast, destruction of planktonic pathogens is best achieved by localised thermoablation and very high power density, a scenario that is best delivered by pulsed optical excitation.
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Affiliation(s)
- Michael B Cortie
- a School of Mathematical and Physical Sciences , University of Technology Sydney , Sydney , Australia
| | - David L Cortie
- b The Institute for Superconducting and Electronic Materials , University of Wollongong , Wollongong , NSW , Australia
| | - Victoria Timchenko
- c School of Mechanical and Manufacturing Engineering , University of New South Wales , Sydney , Australia
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118
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Wang PF, Liu Y, Yin J, Ma W, Zhu JL, Dong Z, Sun JL. Self-assembled gold micro/nanostructure arrays based on superionic conductor RbAg 4I 5 films. NANOTECHNOLOGY 2019; 30:025602. [PMID: 30411715 DOI: 10.1088/1361-6528/aaea31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Herein, we propose a new strategy to fabricate gold (Au) micro/nanostructure arrays by photocatalytic solid-state electrochemical reaction between superionic conductor RbAg4I5 and Au films. The Au and RbAg4I5 films were successively deposited on a clean quartz substrate by vacuum thermal deposition method. A copper microgrid possessing periodic holes 100 μm in diameter was put above the RbAg4I5 film as a mask plate, whereupon irradiation from a 405 nm wavelength laser was used to diffuse gold ions (Au+ ions) into vacant silver sites of RbAg4I5 and transfer Au+ through ion passageways in the RbAg4I5 film. When the laser was turned off, the Au+ ions were easily reduced due to low activity compared to the silver (Ag+) ions. After multiple on/off cycles of the 405 nm laser, the irradiated area of uniform Au film exhibited a periodic structural unit array whose period was the same as that of the mask plate hole array. Atomic force microscope and scanning electron microscope images revealed that a self-assembled needle-like nanostructure array grew perpendicular to the substrate surface inside each circle's structural unit. The height of the grown nanostructure array increased with laser power density. Raman enhancement of the gold nanostructure array as substrate was detected using Rhodamine 6G (R6G) ethanol solutions as probe molecules. The enhancement effect increased with the height of the grown nanostructure array, and could increase by two orders of magnitude greater than that of unirradiated Au film. This strategy offers a new method for the micro/nanostructure processing of gold and provides microscale-array-mediated surface-enhancement Raman-scattering (SERS) substrates comprising Au nanostructures for application in high-sensitivity spectrum analysis.
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Affiliation(s)
- Peng-Fei Wang
- Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China. State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing 100084, People's Republic of China
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119
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Liao YT, Liu CH, Chin Y, Chen SY, Liu SH, Hsu YC, Wu KCW. Biocompatible and multifunctional gold nanorods for effective photothermal therapy of oral squamous cell carcinoma. J Mater Chem B 2019. [DOI: 10.1039/c9tb00574a] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Functionalized gold nanorods were successfully synthesized for the effective photothermal therapy of oral cancer.
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Affiliation(s)
- Yu-Te Liao
- Department of Chemical Engineering
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Chia-Hung Liu
- Institute of Toxicology
- College of Medicine
- National Taiwan University
- Taipei
- Taiwan
| | - Yin Chin
- Department of Bioscience
- Department of Chemistry
- Center for Nanotechnology
- Center of Biomedical Technology
- Center of Cancer Theranostics
| | - Sin-Yuan Chen
- Department of Chemical Engineering
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Shing Hwa Liu
- Institute of Toxicology
- College of Medicine
- National Taiwan University
- Taipei
- Taiwan
| | - Yih-Chih Hsu
- Department of Bioscience
- Department of Chemistry
- Center for Nanotechnology
- Center of Biomedical Technology
- Center of Cancer Theranostics
| | - Kevin C.-W. Wu
- Department of Chemical Engineering
- National Taiwan University
- Taipei 10617
- Taiwan
- Division of Medical Engineering Research
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120
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Maturi M, Locatelli E, Monaco I, Comes Franchini M. Current concepts in nanostructured contrast media development for in vivo photoacoustic imaging. Biomater Sci 2019; 7:1746-1775. [DOI: 10.1039/c8bm01444b] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
To overcome the endogenous photoacoustic contrast arising from endogenous species, specific contrast agents need to be developed, allowing PAI to successfully identify targeted contrast in the range of wavelength in which the interference from the biomatrix is minimized.
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Affiliation(s)
- Mirko Maturi
- Department of Industrial Chemistry “Toso Montanari”
- University of Bologna
- 40136 Bologna
- Italy
| | - Erica Locatelli
- Department of Industrial Chemistry “Toso Montanari”
- University of Bologna
- 40136 Bologna
- Italy
| | - Ilaria Monaco
- Department of Industrial Chemistry “Toso Montanari”
- University of Bologna
- 40136 Bologna
- Italy
| | - Mauro Comes Franchini
- Department of Industrial Chemistry “Toso Montanari”
- University of Bologna
- 40136 Bologna
- Italy
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121
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Kaya SI, Kurbanoglu S, Ozkan SA. Nanomaterials-Based Nanosensors for the Simultaneous Electrochemical Determination of Biologically Important Compounds: Ascorbic Acid, Uric Acid, and Dopamine. Crit Rev Anal Chem 2018; 49:101-125. [DOI: 10.1080/10408347.2018.1489217] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- S. Irem Kaya
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Sevinc Kurbanoglu
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Sibel A. Ozkan
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
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122
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Yang Q, Cai R, Xiao W, Wu Z, Liu X, Xu Y, Xu M, Zhong H, Sun G, Liu Q, Fu Q, Xiang J. Plasmonic ELISA for Sensitive Detection of Disease Biomarkers with a Smart Phone-Based Reader. NANOSCALE RESEARCH LETTERS 2018; 13:397. [PMID: 30519882 PMCID: PMC6281541 DOI: 10.1186/s11671-018-2806-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 11/19/2018] [Indexed: 05/24/2023]
Abstract
Serum myoglobin is one of the earliest markers for the diagnosis of acute myocardial infarction. It is, therefore, critical to develop a point-of-care testing technology for myoglobin detection. In this work, we reported a sensitive plasmonic immunoassay-based on enzyme-mediated localized surface plasmon resonance change of gold nanorods for the point-of-care testing detection of myoglobin. In addition, we developed a novel plasmonic immunoassay reader using the ambient light sensor of smart phone to increase the accessibility and utility of the plasmonic immunoassay. The linear detection range of gold nanorods-based plasmonic immunoassay for myoglobin detection was 0.1-1000 ng mL-1 and the limit of detection was 0.057 ng mL-1. Myoglobin in serum samples was also analyzed by the plasmonic immunoassay. The results were significantly correlated with those of conventional enzyme-linked immunosorbent assay. The plasmonic immunoassay, coupled with smart phone-based reader, could be widely used for point-of-care testing application of acute myocardial infarction, especially in the regions with limited technological resources.
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Affiliation(s)
- Quanli Yang
- Institute of Biotranslational Medicine, Jinan University, Guangzhou, 510632 People’s Republic of China
- Department of Bioengineering, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Ruitian Cai
- Institute of Biotranslational Medicine, Jinan University, Guangzhou, 510632 People’s Republic of China
- Department of Bioengineering, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Wei Xiao
- Department of Bioengineering, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Zengfeng Wu
- Institute of Biotranslational Medicine, Jinan University, Guangzhou, 510632 People’s Republic of China
- Department of Bioengineering, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Xia Liu
- Institute of Biotranslational Medicine, Jinan University, Guangzhou, 510632 People’s Republic of China
- Department of Bioengineering, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Yan Xu
- Institute of Biotranslational Medicine, Jinan University, Guangzhou, 510632 People’s Republic of China
- Department of Bioengineering, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Miaomiao Xu
- Institute of Biotranslational Medicine, Jinan University, Guangzhou, 510632 People’s Republic of China
- Department of Bioengineering, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Hui Zhong
- Institute of Biotranslational Medicine, Jinan University, Guangzhou, 510632 People’s Republic of China
- Department of Bioengineering, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Guodong Sun
- Department of Orthopedics, First Affliated Hospital, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Qihui Liu
- Institute of Biotranslational Medicine, Jinan University, Guangzhou, 510632 People’s Republic of China
- Department of Bioengineering, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Qiangqiang Fu
- Institute of Biotranslational Medicine, Jinan University, Guangzhou, 510632 People’s Republic of China
- Department of Orthopedics, First Affliated Hospital, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Junjian Xiang
- Institute of Biotranslational Medicine, Jinan University, Guangzhou, 510632 People’s Republic of China
- Department of Bioengineering, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, 510632 People’s Republic of China
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123
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DNA-Assisted Assembly of Gold Nanostructures and Their Induced Optical Properties. NANOMATERIALS 2018; 8:nano8120994. [PMID: 30513752 PMCID: PMC6315397 DOI: 10.3390/nano8120994] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 11/22/2018] [Accepted: 11/22/2018] [Indexed: 12/17/2022]
Abstract
Gold nanocrystals have attracted considerable attention due to their excellent physical and chemical properties and their extensive applications in plasmonics, spectroscopy, biological detection, and nanoelectronics. Gold nanoparticles are able to be readily modified and arranged with DNA materials and protein molecules, as well as viruses. Particularly DNA materials with the advantages endowed by programmability, stability, specificity, and the capability to adapt to functionalization, have become the most promising candidates that are widely utilized for building plenty of discrete gold nanoarchitectures. This review highlights recent advances on the DNA-based assembly of gold nanostructures and especially emphasizes their resulted superior optical properties and principles, including plasmonic extinction, plasmonic chirality, surface enhanced fluorescence (SEF), and surface-enhanced Raman scattering (SERS).
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124
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Yanilkin VV, Nasretdinova GR, Kokorekin VA. Mediated electrochemical synthesis of metal nanoparticles. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4827] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The review integrates and analyzes data of original studies on the mediated electrosynthesis of metal nanoparticles — a new efficient and environmentally attractive process for obtaining these particles in the solution bulk. The general principles and specific features of electrosynthesis of metal nanoparticles by mediated electroreduction of metal ions and complexes are considered. The discussed issues include the role of cyclic voltammetry in the development of this method, the method efficiency, some aspects of selection of mediators, and aggregation, stabilization and catalytic activity of the metal nanoparticles thus obtained. Analysis of the results of mediated electrosynthesis of Pd, Ag, PdAg, Au, Pt and Cu nanoparticles stabilized by various compounds and mediated electrogeneration of highly active metal particles is used as basic data for discussion.
The bibliography includes 247 references.
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125
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Bi S, Sun X, Wang Y, Wu J, Zhou H. A sensitive resonance Rayleigh light scattering method for alpinetin using gold nanorods probes. LUMINESCENCE 2018; 33:1164-1170. [PMID: 30047614 DOI: 10.1002/bio.3531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 06/07/2018] [Accepted: 06/08/2018] [Indexed: 11/11/2022]
Abstract
A sensitive resonance Rayleigh light scattering (RLS) assay for alpinetin was developed based on alpinetin-modified gold nanorods (AuNRs). Alpinetin could interact with AuNRs and formed a new assembly by electrostatic attraction. In pH 7.4 Tris-HCl buffer solution, the assembly of alpinetin-AuNRs showed a sensitive RLS signal. Under optimum conditions, the magnitude of enhanced RLS intensity (ΔIRLS ) was proportional to the concentration of alpinetin over the range 0.027-3.24 μg ml-1 , with a detection limit of 1.79 ng ml-1 (by 3σ). The developed RLS method was successfully applied to the detection of alpinetin in real or synthesized samples. Alpinetin recoveries were 90.4-108.7% with an RSD of 0.82-2.9% (n = 5) for Alpinia katsumadai samples, and 95.1-103.7% with an RSD of 0.28-3.9% (n = 5) for synthesized samples. The results showed that this new approach was convenient, reliable and sensitive.
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Affiliation(s)
- Shuyun Bi
- College of Chemistry, Changchun Normal University, Changchun, Peoples Republic of China
| | - Xiaoyue Sun
- College of Chemistry, Changchun Normal University, Changchun, Peoples Republic of China
| | - Yu Wang
- College of Chemistry, Changchun Normal University, Changchun, Peoples Republic of China
| | - Jun Wu
- College of Chemistry, Changchun Normal University, Changchun, Peoples Republic of China
| | - Huifeng Zhou
- College of Chemistry, Changchun Normal University, Changchun, Peoples Republic of China
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126
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Kohout C, Santi C, Polito L. Anisotropic Gold Nanoparticles in Biomedical Applications. Int J Mol Sci 2018; 19:E3385. [PMID: 30380664 PMCID: PMC6274885 DOI: 10.3390/ijms19113385] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 10/22/2018] [Accepted: 10/24/2018] [Indexed: 02/07/2023] Open
Abstract
Gold nanoparticles (AuNPs) play a crucial role in the development of nanomedicine, principally due to their unique photophysical properties and high biocompatibility. The possibility to tune and customize the localized surface plasmon resonance (LSPR) toward near-infrared region by modulating the AuNP shape is one of the reasons for the huge widespread use of AuNPs. The controlled synthesis of no-symmetrical nanoparticles, named anisotropic, is an exciting goal achieved by the scientific community which explains the exponential increase of the number of publications related to the synthesis and use of such type of AuNPs. Even with such steps forward and the AuNP translation in clinic being done, some key issues are still remain and they are related to a reliable and scalable production, a full characterization, and to the development of nanotoxicology studies on the long run. In this review we highlight the very recent advances on the synthesis of the main classes of anisotropic AuNPs (nanorods, nanourchins and nanocages) and their use in the biomedical fields, in terms of diagnosis and therapeutics.
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Affiliation(s)
- Claudia Kohout
- Department of Chemistry, University of Milan, via C. Golgi 19, 20131 Milan, Italy.
| | - Cristina Santi
- Department of Chemistry, University of Milan, via C. Golgi 19, 20131 Milan, Italy.
| | - Laura Polito
- ISTM-CNR, Nanotechnology Lab., via G. Fantoli 16/15, 20138 Milan, Italy.
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127
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Alkan F, Aikens CM. TD-DFT and TD-DFTB Investigation of the Optical Properties and Electronic Structure of Silver Nanorods and Nanorod Dimers. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2018; 122:23639-23650. [PMID: 30364415 PMCID: PMC6196343 DOI: 10.1021/acs.jpcc.8b05196] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Indexed: 05/13/2023]
Abstract
Here, we perform theoretical investigation using time-dependent density functional theory (TD-DFT) and time-dependent density functional tight binding (TD-DFTB) for the electronic structure and optical properties of silver nanorods. TD-DFTB generally performs well for the accurate description of optical properties with respect to the size and type of dimer assembly of silver nanorods compared to TD-DFT. However, the energies and intensities of the longitudinal and transverse peaks of the nanorods are somewhat underestimated with TD-DFTB compared to the values calculated at the TD-DFT level. By exploiting the computational efficiency of TD-DFTB, we also extend our investigation to longer nanorods and their dimers containing up to ∼2000 atoms. Our results show that the coupling between nanorods and the resulting optical properties of the dimer assemblies are quite dependent on the length of the monomers. In all cases, the energy shifts in dimers as a function of the gap distance deviate significantly from the dipole-dipole interaction model. Moreover, a comparison of the best-fit curves for the dependence of the fractional shifts (Δλ/λ0) on nanorod length indicates that the parameters of the plasmon ruler equation depend on the length of the nanorods and the type of the assembly rather than approaching a universal value. These insights are enabled by the computational efficiency of TD-DFTB and its ability to treat quantum mechanical effects in large nanorod dimer systems.
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128
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Mohanta K, Attia Attia Y, Buceta D, Pérez-Mariño ÁM, Blanco Varela MC, López-Quintela MA, Rivas J. Electrochemical study of UV erosion of Au nanorods by silver nanoclusters (NCs) allows the construction of a NC-sensitized photovoltaic cell. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0840-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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129
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Wongkaew N, Simsek M, Griesche C, Baeumner AJ. Functional Nanomaterials and Nanostructures Enhancing Electrochemical Biosensors and Lab-on-a-Chip Performances: Recent Progress, Applications, and Future Perspective. Chem Rev 2018; 119:120-194. [DOI: 10.1021/acs.chemrev.8b00172] [Citation(s) in RCA: 303] [Impact Index Per Article: 50.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nongnoot Wongkaew
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
| | - Marcel Simsek
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
| | - Christian Griesche
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
| | - Antje J. Baeumner
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
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130
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Nasrollahzadeh M, Ghorbannezhad F, Issaabadi Z, Sajadi SM. Recent Developments in the Biosynthesis of Cu‐Based Recyclable Nanocatalysts Using Plant Extracts and their Application in the Chemical Reactions. CHEM REC 2018; 19:601-643. [DOI: 10.1002/tcr.201800069] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/17/2018] [Indexed: 01/11/2023]
Affiliation(s)
| | | | - Zahra Issaabadi
- Department of Chemistry, Faculty of ScienceUniversity of Qom Qom 37185-359 Iran
| | - S. Mohammad Sajadi
- Department of Petroleum Geoscience, Faculty of ScienceSoran University PO Box 624 Soran, Kurdistan Regional Government Iraq
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131
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El Hadri H, Gigault J, Tan J, Hackley VA. An assessment of retention behavior for gold nanorods in asymmetrical flow field-flow fractionation. Anal Bioanal Chem 2018; 410:6977-6984. [PMID: 30194453 DOI: 10.1007/s00216-018-1325-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/06/2018] [Accepted: 08/14/2018] [Indexed: 10/28/2022]
Abstract
Applications of asymmetrical flow field-flow fractionation (AF4) continue to expand rapidly in the fields of nanotechnology and biotechnology. In particular, AF4 has proven valuable for the separation and analysis of particles, biomolecular species (e.g., proteins, bacteria) and polymers (natural and synthetic), ranging in size from a few nanometers to several micrometers. The separation of non-spheroidal structures (e.g., rods, tubes, etc.) with primary dimensions in the nanometer regime, is a particularly challenging application deserving of greater study and consideration. The goal of the present study was to advance current understanding of the mechanism of separation of rod-like nano-objects in the AF4 channel. To achieve this, we have systematically investigated a series of commercially available cetyltrimethylammonium bromide stabilized gold nanorods (AuNRs), with aspect ratios from 1.7 to 10. Results show clearly that the retention time is principally dependent on the translational diffusion coefficient of the AuNRs. Equations used to calculate translational and rotational diffusion coefficients (cylinder and prolate ellipsoid models) yield similarly good fits to experimental data. Well characterized gold nanorods (length and diameter by transmission electron microscopy) can be used as calibrants for AF4 measurements allowing one to determine the aspect ratio of nanorod samples based on their retention times. Graphical abstract ᅟ.
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Affiliation(s)
- Hind El Hadri
- Materials Measurement Science Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD, 20899, USA.
| | - Julien Gigault
- French National Center for Scientific Research (CNRS), Laboratoire Géosciences Rennes UMR6118, 263 Avenue Général Leclerc, 35000, Rennes, France
| | - Jiaojie Tan
- Materials Measurement Science Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD, 20899, USA
| | - Vincent A Hackley
- Materials Measurement Science Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD, 20899, USA.
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132
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Motaghedifard M, Behpour M, Amani AM. Electrochemical Growth of Sponge/Raspberry-Like Gold Nanoclusters at the Carbon Rod. RUSS J ELECTROCHEM+ 2018. [DOI: 10.1134/s1023193518080037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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133
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Hashemi M, Muralidharan B, Omidi M, Mohammadi J, Sefidbakht Y, Kima ES, Smyth HDC, Shalbaf M, Milner TE. Effect of size and chemical composition of graphene oxide nanoparticles on optical absorption cross-section. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-9. [PMID: 30156063 DOI: 10.1117/1.jbo.23.8.085007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 08/03/2018] [Indexed: 06/08/2023]
Abstract
Photothermal therapy with various nanoparticles, as photothermal transducers, is a widely researched technique. A continuous wave (CW) laser is employed during this procedure. The therapeutic setup is slightly modified to measure the optical absorption cross-section of the graphene oxide (GO), by mitigating the effects of heat diffusion and light scattering. With an 808-nm CW laser setup modulated by a waveform modulation setup, the effect of nanoparticle size and composition of GO in water on optical absorption cross section is characterized.
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Affiliation(s)
- Mohadeseh Hashemi
- University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas, United States
- University of Tehran, Faculty of new Science and Engineering, Tehran, Iran
- University of Texas at Austin, Division of Pharmaceutics, College of Pharmacy, Austin, Texas, United States
| | - Bharadwaj Muralidharan
- University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas, United States
- University of Texas at Austin, Department of Electrical and Computer Engineering, Austin, Texas, United States
| | - Meisam Omidi
- Shahid Beheshti University, G.C., Protein Research Center, Tehran, Iran
| | - Javad Mohammadi
- University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas, United States
- University of Tehran, Faculty of new Science and Engineering, Tehran, Iran
| | - Yahya Sefidbakht
- Shahid Beheshti University, G.C., Protein Research Center, Tehran, Iran
| | - Eun Song Kima
- University of Texas at Austin, Division of Pharmaceutics, College of Pharmacy, Austin, Texas, United States
| | - Hugh D C Smyth
- University of Texas at Austin, Division of Pharmaceutics, College of Pharmacy, Austin, Texas, United States
| | - Mohammad Shalbaf
- Shahid Beheshti University, G.C., Protein Research Center, Tehran, Iran
| | - Thomas E Milner
- University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas, United States
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134
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Burpo FJ, Nagelli EA, Morris LA, Woronowicz K, Mitropoulos AN. Salt-Mediated Au-Cu Nanofoam and Au-Cu-Pd Porous Macrobeam Synthesis. Molecules 2018; 23:E1701. [PMID: 30002301 PMCID: PMC6099500 DOI: 10.3390/molecules23071701] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/10/2018] [Accepted: 07/10/2018] [Indexed: 12/11/2022] Open
Abstract
Multi-metallic and alloy nanomaterials enable a broad range of catalytic applications with high surface area and tuning reaction specificity through the variation of metal composition. The ability to synthesize these materials as three-dimensional nanostructures enables control of surface area, pore size and mass transfer properties, electronic conductivity, and ultimately device integration. Au-Cu nanomaterials offer tunable optical and catalytic properties at reduced material cost. The synthesis methods for Au-Cu nanostructures, especially three-dimensional materials, has been limited. Here, we present Au-Cu nanofoams and Au-Cu-Pd macrobeams synthesized from salt precursors. Salt precursors formed from the precipitation of square planar ions resulted in short- and long-range ordered crystals that, when reduced in solution, form nanofoams or macrobeams that can be dried or pressed into freestanding monoliths or films. Metal composition was determined with X-ray diffraction and energy dispersive X-ray spectroscopy. Nitrogen gas adsorption indicated an Au-Cu nanofoam specific surface area of 19.4 m²/g. Specific capacitance determined with electrochemical impedance spectroscopy was 46.0 F/g and 52.5 F/g for Au-Cu nanofoams and Au-Cu-Pd macrobeams, respectively. The use of salt precursors is envisioned as a synthesis route to numerous metal and multi-metallic nanostructures for catalytic, energy storage, and sensing applications.
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Affiliation(s)
- Fred J Burpo
- Department of Chemistry and Life Science, United States Military Academy, West Point, NY 10996, USA.
| | - Enoch A Nagelli
- Department of Chemistry and Life Science, United States Military Academy, West Point, NY 10996, USA.
| | - Lauren A Morris
- Armament Research, Development and Engineering Center, U.S. Army RDECOM-ARDEC, Picatinny Arsenal, NJ 07806, USA.
| | - Kamil Woronowicz
- Department of Chemistry and Life Science, United States Military Academy, West Point, NY 10996, USA.
| | - Alexander N Mitropoulos
- Department of Chemistry and Life Science, United States Military Academy, West Point, NY 10996, USA.
- Department of Mathematical Sciences, United States Military Academy, West Point, NY 10996, USA.
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135
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Meng Y, Cai L, Xu X, Zhang L. Construction of size-controllable gold nanoparticles immobilized on polysaccharide nanotubes by in situ one-pot synthesis. Int J Biol Macromol 2018; 113:240-247. [DOI: 10.1016/j.ijbiomac.2018.02.122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 02/01/2018] [Indexed: 11/28/2022]
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136
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Sustainable synthesis of gold nanorods assisted by cubic-shaped seeds as intermediate particles. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.05.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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137
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Studying of Surfactant Excess Separation from Non-aqueous Quantum Dots Solution on its Monolayer Formation Process. BIONANOSCIENCE 2018. [DOI: 10.1007/s12668-018-0537-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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138
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Formation of microcapsules by ultrasound stimulation for use in remote-controlled drug-eluting stents. Med Eng Phys 2018; 56:42-47. [DOI: 10.1016/j.medengphy.2018.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 03/29/2018] [Accepted: 04/08/2018] [Indexed: 01/15/2023]
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139
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Kameta N, Shiroishi H. PEG-nanotube liquid crystals as templates for construction of surfactant-free gold nanorods. Chem Commun (Camb) 2018; 54:4665-4668. [PMID: 29682658 DOI: 10.1039/c8cc02013b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Lyotropic liquid crystals, in which nanotubes coated with polyethylene glycol were aligned side-by-side in aqueous dispersions, acted as templates for the construction of surfactant-free gold nanorods with controllable diameters, functionalizable surfaces, and tunable optical properties.
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Affiliation(s)
- Naohiro Kameta
- Nanomaterials Research Institute, Department of Materials and Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
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140
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Jessl S, Tebbe M, Guerrini L, Fery A, Alvarez-Puebla RA, Pazos-Perez N. Silver-Assisted Synthesis of Gold Nanorods: the Relation between Silver Additive and Iodide Impurities. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1703879. [PMID: 29665260 DOI: 10.1002/smll.201703879] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 02/26/2018] [Indexed: 05/20/2023]
Abstract
Seed-mediated methods employing cetyltrimethylammonium bromide (CTAB) as a surfactant, and silver salts as additives, are the most common synthetic strategies for high-yield productions of quality Au nanorods. However, the mechanism of these reactions is not yet fully understood and, importantly, significant lab-to-lab reproducibility issues still affect these protocols. In this study, the direct correlation between the hidden content of iodide impurities in CTAB reagents, which can drastically differ from different suppliers or batches, and the optimal concentration of silver required to maximize the nanorods yield is demonstrated. As a result, high-quality nanorods are obtained at different iodide contents. These results are interpreted based on the different concentrations of CTAB and cetyltrimethylammonium iodide (CTAI) complexes with Ag+ and Au+ metal ions in the growth solution, and their different binding affinity and reduction potential on distinct crystallographic planes. Notably, the exhaustive conversion of CTAI-Au+ to CTAI-Ag+ appears to be the key condition for maximizing the nanorod yield.
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Affiliation(s)
- Sarah Jessl
- Department of Physical Chemistry II, University of Bayreuth, Universitaetsstrasse 30, 95440, Bayreuth, Germany
| | - Moritz Tebbe
- Department of Physical Chemistry II, University of Bayreuth, Universitaetsstrasse 30, 95440, Bayreuth, Germany
| | - Luca Guerrini
- Departamento de Quimica Fisica e Inorganica and EMaS, Universitat Rovira i Virgili, Carrer de Marcel•lí Domingo s/n, 43007, Tarragona, Spain
- Institute of Physical Chemistry, Hamburg University, Grindelallee 117, 20146, Hamburg, Germany
| | - Andreas Fery
- Department of Physical Chemistry II, University of Bayreuth, Universitaetsstrasse 30, 95440, Bayreuth, Germany
| | - Ramon A Alvarez-Puebla
- Departamento de Quimica Fisica e Inorganica and EMaS, Universitat Rovira i Virgili, Carrer de Marcel•lí Domingo s/n, 43007, Tarragona, Spain
- ICREA, Passeig Lluís Companys 23, 08010, Barcelona, Spain
| | - Nicolas Pazos-Perez
- Department of Physical Chemistry II, University of Bayreuth, Universitaetsstrasse 30, 95440, Bayreuth, Germany
- Departamento de Quimica Fisica e Inorganica and EMaS, Universitat Rovira i Virgili, Carrer de Marcel•lí Domingo s/n, 43007, Tarragona, Spain
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141
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Lestini E, Andrei C, Zerulla D. Linear self-assembly and grafting of gold nanorods into arrayed micrometer-long nanowires on a silicon wafer via a combined top-down/bottom-up approach. PLoS One 2018; 13:e0195859. [PMID: 29664920 PMCID: PMC5903609 DOI: 10.1371/journal.pone.0195859] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 03/31/2018] [Indexed: 11/19/2022] Open
Abstract
Macroscopically long wire-like arrangements of gold nanoparticles were obtained by controlled evaporation and partial coalescence of an aqueous colloidal solution of capped CTAB-Au nanorods onto a functionalised 3-mercaptopropyl trimethoxysilane (MPTMS) silicon substrate, using a removable, silicon wafer with a hydrophobic surface that serves as a "handrail" for the initial nanorods' linear self-assembly. The wire-like structures display a quasi-continuous pattern by thermal annealing of the gold nanorods when the solvent (i.e. water) is evaporated at temperatures rising from 20°C to 140°C. Formation of both single and self-replicating parallel 1D-superstructures consisting of two or even three wires is observed and explained under such conditions.
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Affiliation(s)
- Elena Lestini
- University College Dublin, School of Physics, Science Centre North, Dublin, Ireland
| | - Codrin Andrei
- University College Dublin, School of Physics, Science Centre North, Dublin, Ireland
- University College Dublin, School of Mathematics and Statistics, Science Centre South, Dublin, Ireland
| | - Dominic Zerulla
- University College Dublin, School of Physics, Science Centre North, Dublin, Ireland
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142
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Roach L, Ye S, Moorcroft SCT, Critchley K, Coletta PL, Evans SD. Morphological control of seedlessly-synthesized gold nanorods using binary surfactants. NANOTECHNOLOGY 2018; 29:135601. [PMID: 29355832 DOI: 10.1088/1361-6528/aaa99d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
High purity gold nanorods (AuNRs) with tunable morphology have been synthesized through a binary-surfactant seedless method, which enables the formation of monocrystalline AuNRs with diameters between 7 and 35 nm. The protocol has high shape yield and monodispersity, demonstrating good reproducibility and scalability allowing synthesis of batches 0.5 l in volume. Morphological control has been achieved through the adjustment of the molar concentrations of cetyltrimethylammonium bromide and sodium oleate in the growth solution, providing fine tuning of the optical scattering and absorbance properties of the AuNRs across the visible and NIR spectrum. Sodium oleate was found to provide greatest control over the aspect ratio (and hence optical properties) with concentration changes between 10 and 23 mM leading to variation in the aspect ratio between 2.8 and 4.8. Changes in the geometry of the end-caps were also observed as a result of manipulating the two surfactant concentrations.
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Affiliation(s)
- Lucien Roach
- School of Physics and Astronomy, University of Leeds, Leeds, LS2 9JT, United Kingdom. Leeds Institute for Biomedical and Clinical Sciences, University of Leeds, Leeds, LS9 7TF, United Kingdom
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143
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González-Rubio G, Díaz-Núñez P, Rivera A, Prada A, Tardajos G, González-Izquierdo J, Bañares L, Llombart P, Macdowell LG, Alcolea Palafox M, Liz-Marzán LM, Peña-Rodríguez O, Guerrero-Martínez A. Femtosecond laser reshaping yields gold nanorods with ultranarrow surface plasmon resonances. Science 2018; 358:640-644. [PMID: 29097547 DOI: 10.1126/science.aan8478] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Accepted: 09/14/2017] [Indexed: 12/21/2022]
Abstract
The irradiation of gold nanorod colloids with a femtosecond laser can be tuned to induce controlled nanorod reshaping, yielding colloids with exceptionally narrow localized surface plasmon resonance bands. The process relies on a regime characterized by a gentle multishot reduction of the aspect ratio, whereas the rod shape and volume are barely affected. Successful reshaping can only occur within a narrow window of the heat dissipation rate: Low cooling rates lead to drastic morphological changes, and fast cooling has nearly no effect. Hence, a delicate balance must be achieved between irradiation fluence and surface density of the surfactant on the nanorods. This perfection process is appealing because it provides a simple, fast, reproducible, and scalable route toward gold nanorods with an optical response of exceptional quality, near the theoretical limit.
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Affiliation(s)
- Guillermo González-Rubio
- Departamento de Química Física I, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain.,Bionanoplasmonics Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Pablo Díaz-Núñez
- Instituto de Fusión Nuclear, Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, E-28006 Madrid, Spain
| | - Antonio Rivera
- Instituto de Fusión Nuclear, Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, E-28006 Madrid, Spain
| | - Alejandro Prada
- Instituto de Fusión Nuclear, Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, E-28006 Madrid, Spain
| | - Gloria Tardajos
- Departamento de Química Física I, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain
| | - Jesús González-Izquierdo
- Centro de Láseres Ultrarápidos, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain
| | - Luis Bañares
- Departamento de Química Física I, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain.,Centro de Láseres Ultrarápidos, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain
| | - Pablo Llombart
- Departamento de Química Física I, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain
| | - Luis G Macdowell
- Departamento de Química Física I, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain
| | - Mauricio Alcolea Palafox
- Departamento de Química Física I, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain
| | - Luis M Liz-Marzán
- Bionanoplasmonics Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain. .,Ciber-BBN (Ciber de Bioingeniería, Biomateriales y Nanomedicina), 20014 Donostia-San Sebastián, Spain.,Ikerbasque (Basque Foundation for Science), 48013 Bilbao, Spain
| | - Ovidio Peña-Rodríguez
- Instituto de Fusión Nuclear, Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, E-28006 Madrid, Spain.
| | - Andrés Guerrero-Martínez
- Departamento de Química Física I, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain.
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144
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Sharma AK, Thapar V, Escobedo FA. Solid-phase nucleation free-energy barriers in truncated cubes: interplay of localized orientational order and facet alignment. SOFT MATTER 2018; 14:1996-2005. [PMID: 29388998 DOI: 10.1039/c7sm02377d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The nucleation of ordered phases from the bulk isotropic phase of octahedron-like particles has been studied via Monte Carlo simulations and umbrella sampling. In particular, selected shapes that form ordered (plastic) phases with various symmetries (cubic and tetragonal) are chosen to unveil trends in the free-energy barrier heights (ΔG*'s) associated with disorder to order transitions. The shapes studied in this work have truncation parameter (s) values of 0.58, 0.75, 0.8 and 1. The case of octahedra (s = 1.0) is studied to provide a counter-example where the isotropic phase nucleates directly into a (Minkowski) crystal phase rather than a rotator phase. The simulated ΔG*'s for these systems are compared with those previously reported for hard spheres and truncated cubes with s = 0.5 (cuboctahedra, CO) and s = 2/3 (truncated octahedra, TO). The comparison shows that, for comparable degrees of supersaturation, all rotator phases nucleate with smaller ΔG*'s than that of the hard sphere crystal, whereas the octahedral crystal nucleates with a larger ΔG*. Our analysis of near-critical translationally ordered nuclei of octahedra shows a strong bias towards an orientational alignment which is incompatible with the tendency to form facet-to-facet contacts in the disordered phase, thus creating an additional entropic penalty for crystallization. For rotator phases of octahedra-like particles, we observe that the strength of the localized orientational order correlates inversely with ΔG*. We also observe that for s > 0.66 shapes and similar to octahedra, configurations with high facet alignment do not favor high orientational order, and thus ΔG*'s increase with truncation.
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Affiliation(s)
- Abhishek K Sharma
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY 14853, USA.
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145
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Elahi N, Kamali M, Baghersad MH. Recent biomedical applications of gold nanoparticles: A review. Talanta 2018; 184:537-556. [PMID: 29674080 DOI: 10.1016/j.talanta.2018.02.088] [Citation(s) in RCA: 575] [Impact Index Per Article: 95.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 02/22/2018] [Accepted: 02/22/2018] [Indexed: 12/12/2022]
Abstract
Recent advances in nanotechnology are as a result of the development of engineered nanoparticles. Efficiently, metallic nanoparticles have been widely exploited for biomedical application and among them, gold nanoparticles (AuNPs) are highly remarkable. Consequent upon their significant nature, spherical and gold nanorods (Au NRs) nanoparticles attract extreme attention. Their intrinsic features such as optical, electronic, physicochemical and, surface plasmon resonance (SPR); which can be altered by changing the characterizations of particles such as shape, size, aspect ratio, or environment; ease of synthesis and functionalization properties have resulted to various applications in different fields of biomedicine such as sensing, targeted drug delivery, imaging, photothermal and photodynamic therapy as well as the modulation of two or three applications. This article reviewed the popular AuNPs synthesis methods and mentioned their established applications in various demands, especially in biological sensing.
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Affiliation(s)
- Narges Elahi
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mehdi Kamali
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Mohammad Hadi Baghersad
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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146
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Madi M, Ceyssens F, Shorubalko I, Herzig HP, Guldimann B, Giaccari P. Lippmann waveguide spectrometer with enhanced throughput and bandwidth for space and commercial applications. OPTICS EXPRESS 2018; 26:2682-2707. [PMID: 29401806 DOI: 10.1364/oe.26.002682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 01/02/2018] [Indexed: 06/07/2023]
Abstract
This article presents an innovative high spectral resolution waveguide spectrometer, from the concept to the prototype demonstration and the test results. The main goal is to build the smallest possible Fourier transform spectrometer (FTS) with state of the art technology. This waveguide FTS takes advantage of a customized pattern of nano-samplers fabricated on the surface of a planar waveguide that allows the increase of the measurement points necessary for increasing the spectral bandwidth of the FTS in a fully static way. The use of a planar waveguide on the other hand allows enhancing the throughput in a waveguide spectrometer compared to the conventional devices made of single-mode waveguides. A prototype is made in silicon oxynitride/silicon dioxide technology and characterized in the visible range. This waveguide spectrometer shows a nominal bandwidth of 256~nm at a central wavelength of 633~nm thanks to a custom pattern of nanodisks providing a μm sampling interval. The implementation of this innovative waveguide FTS for a real-case scenario is explored and further development of such device for the imaging FTS application is discussed.
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147
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El Kurdi R, Patra D. The role of OH - in the formation of highly selective gold nanowires at extreme pH: multi-fold enhancement in the rate of the catalytic reduction reaction by gold nanowires. Phys Chem Chem Phys 2018; 19:5077-5090. [PMID: 28134362 DOI: 10.1039/c6cp08607a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
There is a quest to understand the mechanism governing the morphology and geometry control of the particle growth of nanomaterials for their optical and catalytic applications. In the available literature, the role of OH- in dictating the size and shape of Au nanowires is unknown. As one of the first examples, herein, we explore how excess OH- ions in CTAB micelles play a significant role during the highly selective formation of gold nanowires having controlled diameters of ∼20-25 nm and length >1 μm, by reducing Au3+ to Au0 in a one pot, simple synthesis procedure in the presence of Ag+ ions. At pH 4-11, the same procedure does not harvest Au NWs, but Au NPs of diameter 50-70 nm, indicating that excess OH- is needed for nanowire formation. XRD, TGA, DSC, EDX, FT-IR and fluorescence spectroscopic analysis confirm that both CTAB and curcumin act as capping and stabilizing agents for Au NWs as well as Au NPs - there is no remarkable difference in the curcumin/CTAB content between Au NWs and NPs prepared in different pH environments. However, changing the CTAB micellar media to DPPC liposome media inhibits the formation of nanowires at pH ∼13; the growth of the Au NPs diminishes in DPPC liposomes, offering smaller NPs of diameter ∼25 to 30 nm, suggesting that the role of CTAB is necessary in nanowire formation. The rate of NW formation has been found to be 0.13 h-1 and the growth mechanism advocates elongation in the [110] facet of Au [110] as opposed to the [100] or [111] facets. Curcumin capped Au nanowires serve as excellent nano-catalysts for the reduction of nitro-compounds and the rate of reduction of 4-nitrophenol, a model compound, by curcumin capped Au NWs is found to be ∼10 fold higher, compared to Au NPs, which signifies that catalytic activities can be dictated by the size and shape of Au NPs.
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Affiliation(s)
- Riham El Kurdi
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
| | - Digambara Patra
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
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148
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Ho YS. Classic papers published by Taiwanese scientists in the science citation index expanded: A bibliometric study. COLLNET JOURNAL OF SCIENTOMETRICS AND INFORMATION MANAGEMENT 2018. [DOI: 10.1080/09737766.2017.1400752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Yuh-Shan Ho
- Trend Research Centre, Asia University, No. 500, Lioufeng Road, Wufeng, Taichung County 41354, Taiwan
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149
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Stolle HLKS, Garwe F, Müller R, Krech T, Oberleiter B, Rainer T, Fritzsche W, Stolle A. Design of a scalable AuNP catalyst system for plasmon-driven photocatalysis. RSC Adv 2018; 8:30289-30297. [PMID: 35546807 PMCID: PMC9085434 DOI: 10.1039/c8ra03661f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 08/10/2018] [Indexed: 11/23/2022] Open
Abstract
In this work we present a simple, fast and cost-efficient synthesis of a metal nanoparticle catalyst on a glass support for plasmon driven heterogeneous photocatalysis. It is based on efficient mixing of metal salts as particle precursors with porous glass as the supporting material in a mixer ball mill, and the subsequent realization of a complete catalyst system by laser sintering the obtained powder on a glass plate as the support. By this, we could obtain catalyst systems with a high particle proportion and an even spatial particle distribution in a rapid process, which could be applied to various kinds of metal salt resulting in plasmon active metal nanoparticles. Furthermore, the catalyst production process presented here is easily scalable to any size of area that is to be coated. Finally, we demonstrate the catalytic performance of our catalysts by a model reaction of ethanol degradation in a self-designed lab-scale reactor. An easy to prepare catalyst system on a support for plasmon catalysed degradation of ethanol in the gas-phase.![]()
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Affiliation(s)
- Heike Lisa Kerstin Stephanie Stolle
- Leibniz Institute of Photonic Technology (IPHT)
- Department of Nanobiophotonics
- D-07745 Jena
- Germany
- Institute of Technical and Environmental Chemistry
| | - Frank Garwe
- Leibniz Institute of Photonic Technology (IPHT)
- Department of Nanobiophotonics
- D-07745 Jena
- Germany
| | - Robert Müller
- Leibniz Institute of Photonic Technology (IPHT)
- Department of Nanobiophotonics
- D-07745 Jena
- Germany
| | - Thomas Krech
- JENOPTIK Automatisierungstechnik GmbH
- D-07745 Jena
- Germany
| | | | - Thomas Rainer
- HEGLA boraident GmbH & Co. KG
- D-06118 Halle/Saale
- Germany
| | - Wolfgang Fritzsche
- Leibniz Institute of Photonic Technology (IPHT)
- Department of Nanobiophotonics
- D-07745 Jena
- Germany
| | - Achim Stolle
- Institute of Technical and Environmental Chemistry
- Faculty of Chemistry and Earth Sciences
- Friedrich-Schiller-University Jena
- D-07743 Jena
- Germany
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150
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Zhang G, Luo W, Qin Q, Liu Y, Jin C, Hao J, Zhang J, Zheng W. Ionic liquid bifunctionally modulated aggregation-coalescence mechanism to synthesize SnSe single-crystal nanorod/nanoparticle core shell nanostructures and single-crystal nanorods for optoelectronics. CrystEngComm 2018. [DOI: 10.1039/c7ce02156a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ionic liquid-bifunctional modulated synthesis of SnSe nanorafts and nanorods for optoelectronics.
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Affiliation(s)
- Guofeng Zhang
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule-Based Materials Chemistry
- College of Chemistry
- Nankai University
| | - Wenhao Luo
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule-Based Materials Chemistry
- College of Chemistry
- Nankai University
| | - Qing Qin
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule-Based Materials Chemistry
- College of Chemistry
- Nankai University
| | - Yanxia Liu
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule-Based Materials Chemistry
- College of Chemistry
- Nankai University
| | - Cen Jin
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule-Based Materials Chemistry
- College of Chemistry
- Nankai University
| | - Jing Hao
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule-Based Materials Chemistry
- College of Chemistry
- Nankai University
| | - Jing Zhang
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule-Based Materials Chemistry
- College of Chemistry
- Nankai University
| | - Wenjun Zheng
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule-Based Materials Chemistry
- College of Chemistry
- Nankai University
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