1
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Getahun Y, Das D, Ramana CV, El-Gendy AA. Nanoengineered pure Fe in a citrate matrix (Fe-CIT) with significant and tunable magnetic properties. NANOTECHNOLOGY 2024; 35:48LT01. [PMID: 39146961 DOI: 10.1088/1361-6528/ad6fa5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 08/15/2024] [Indexed: 08/17/2024]
Abstract
This work demonstrates the synthesis and characterization of Fe nanoparticles surrounded by a citrate (CIT) matrix prepared at various temperatures and concentrations of metal, capping agent and reducing agent at standard conditions. We study the effect of reactant ratio and reaction temperature on the magnetization of the produced nanoparticles and their crystal structure. We found that for optimal metal concentrations, magnetic saturation increases with increase in the concentration of capping and reducing agents but decreases as the temperature of the reaction increases. Synthesis conditions were tailored to reveal nucleation of particles with average sizes ranging from 24 to 105 nm and a spherical shape. The ultra-high saturation magnetization of 228 emu g-1obtained for samples prepared at a metal precursor concentration of 27.8 mol l-1was attributed to the formation of small magnetic domains. Energy band gap measurements revealed a band gap energy for the Fe nanoparticles in the CIT matrix which is associated with CIT concentration and/or possible formation of a few thin layers of iron oxide shell and does not have a significant effect on the magnetic properties of the samples. Herein, we demonstrate that the synthesis parameters are crucial for the nucleation of Fe-CIT nanoparticles tailoring their magnetizatic properties as well as their potential for different applications.
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Affiliation(s)
- Yohannes Getahun
- Department of Physics, University of Texas at El Paso, El Paso, TX 79968, United States of America
- Department of Environmental Science and Engineering, Material Science and Engineering, University of Texas at El Paso, El Paso, TX 79968, United States of America
| | - Debabrata Das
- Centre for Advanced Materials Research (CMR), University of Texas at El Paso, El Paso, TX 79968, United States of America
| | - C V Ramana
- Centre for Advanced Materials Research (CMR), University of Texas at El Paso, El Paso, TX 79968, United States of America
- Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, El Paso, TX 79968, United States of America
- Department of Mechanical Engineering, University of Texas at El Paso, El Paso, TX 79968, United States of America
| | - Ahmed A El-Gendy
- Department of Physics, University of Texas at El Paso, El Paso, TX 79968, United States of America
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2
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Tiryaki E, Zorlu T, Alvarez-Puebla RA. Magnetic-Plasmonic Nanocomposites as Versatile Substrates for Surface-enhanced Raman Scattering (SERS) Spectroscopy. Chemistry 2024; 30:e202303987. [PMID: 38294096 DOI: 10.1002/chem.202303987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/30/2024] [Accepted: 01/30/2024] [Indexed: 02/01/2024]
Abstract
Surface-enhanced Raman scattering (SERS) spectroscopy, a highly sensitive technique for detecting trace-level analytes, relies on plasmonic substrates. The choice of substrate, its morphology, and the excitation wavelength are crucial in SERS applications. To address advanced SERS requirements, the design and use of efficient nanocomposite substrates have become increasingly important. Notably, magnetic-plasmonic (MP) nanocomposites, which combine magnetic and plasmonic properties within a single particle system, stand out as promising nanoarchitectures with versatile applications in nanomedicine and SERS spectroscopy. In this review, we present an overview of MP nanocomposite fabrication methods, explore surface functionalization strategies, and evaluate their use in SERS. Our focus is on how different nanocomposite designs, magnetic and plasmonic properties, and surface modifications can significantly influence their SERS-related characteristics, thereby affecting their performance in specific applications such as separation, environmental monitoring, and biological applications. Reviewing recent studies highlights the multifaceted nature of these materials, which have great potential to transform SERS applications across a range of fields, from medical diagnostics to environmental monitoring. Finally, we discuss the prospects of MP nanocomposites, anticipating favorable developments that will make substantial contributions to various scientific and technological areas.
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Affiliation(s)
- Ecem Tiryaki
- Nanomaterials for Biomedical Applications. Italian Institute of Technology (IIT), Geneva, 16163, Geneve, Italy
| | - Tolga Zorlu
- Faculty of Chemistry, Institute of Functional Materials and Catalysis, University of Vienna, Währingerstr. 42, A-1090, Vienna, Austria
| | - Ramon A Alvarez-Puebla
- Department of Inorganic and Physical Chemistry, Universitat Rovira i Virgili, C/Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
- ICREA, Passeig Lluis Companys 23, 08010, Barcelona, Spain
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3
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Rodriguez-Nieves AL, Taylor ML, Wilson R, Eldridge BK, Nawalage S, Annamer A, Miller HG, Alle MR, Gomrok S, Zhang D, Wang Y, Huang X. Multiplexed Surface Protein Detection and Cancer Classification Using Gap-Enhanced Magnetic-Plasmonic Core-Shell Raman Nanotags and Machine Learning Algorithm. ACS APPLIED MATERIALS & INTERFACES 2024; 16:2041-2057. [PMID: 38173420 DOI: 10.1021/acsami.3c13921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Cancer is the second leading cause of death attributed to disease worldwide. Current standard detection methods often rely on a single cancer marker, which can lead to inaccurate results, including false negatives, and an inability to detect multiple cancers simultaneously. Here, we developed a multiplex method that can effectively detect and classify surface proteins associated with three distinct types of breast cancer by utilizing gap-enhanced Raman scattering nanotags and machine learning algorithm. We synthesized anisotropic magnetic core-gold shell gap-enhanced Raman nanotags incorporating three different Raman reporters. These multicolor Raman nanotags were employed to distinguish specific surface protein markers in breast cancer cells. The acquired signals were deconvoluted and analyzed using classical least-squares regression to generate a surface protein profile and characterize the breast cancer cells. Furthermore, computational data obtained via finite-difference time-domain and discrete dipole approximation showed the amplification of the electric fields within the gap region due to plasmonic coupling between the two gold layers. Finally, a random forest classifier achieved an impressive classification and profiling accuracy of 93.9%, enabling effective distinguishing between the three different types of breast cancer cell lines in a mixed solution. With the combination of immunomagnetic multiplex target specificity and separation, gap-enhancement Raman nanotags, and machine learning, our method provides an accurate and integrated platform to profile and classify different cancer cells, giving implications for identification of the origin of circulating tumor cells in the blood system.
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Affiliation(s)
| | - Mitchell Lee Taylor
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Raymond Wilson
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Brinton King Eldridge
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Samadhi Nawalage
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Assam Annamer
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Hailey Grace Miller
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Madhusudhan Reddy Alle
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Saghar Gomrok
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Dongmao Zhang
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Yongmei Wang
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Xiaohua Huang
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
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4
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Talaikis M, Mikoliunaite L, Gkouzi AM, Petrikaitė V, Stankevičius E, Drabavičius A, Selskis A, Juškėnas R, Niaura G. Multiwavelength SERS of Magneto-Plasmonic Nanoparticles Obtained by Combined Laser Ablation and Solvothermal Methods. ACS OMEGA 2023; 8:49396-49405. [PMID: 38162725 PMCID: PMC10753541 DOI: 10.1021/acsomega.3c08007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/09/2023] [Accepted: 11/23/2023] [Indexed: 01/03/2024]
Abstract
The present study introduces a novel method for the synthesis of magneto-plasmonic nanoparticles (MPNPs) with enhanced functionality for surface-enhanced Raman scattering (SERS) applications. By employing pulsed laser ablation in liquid (PLAL) to synthesize plasmonic nanoparticles and wet chemistry to synthesize magnetic nanoparticles, we successfully fabricated chemically pure hybrid Fe3O4@Au and Fe3O4@Ag nanoparticles. We demonstrated a straightforward approach of an electrostatic attachment of the plasmonic and magnetic parts using positively charged polyethylenimine. The MPNPs displayed high SERS sensitivity and reproducibility, and the magnetic part allowed for the controlled separation of the nanoparticles from the reaction mixture, their subsequent concentration, and their precise deposition onto a specified surface area. Additionally, we fabricated alloy based MPNPs from AgxAu100-x (x = 50 and 80 wt %) targets with distinct localized surface plasmon resonance (LSPR) wavelengths. The compositions, morphologies, and optical properties of the nanoparticles were characterized by using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-vis spectroscopy, and multiwavelength Raman spectroscopy. A standard SERS marker, 4-mercaptobenzoic acid (4-MBA), validated the enhancement properties of the MPNPs and found an enhancement factor of 2 × 108 for the Fe3O4@Ag nanoparticles at 633 nm excitation. Lastly, we applied MPNP-enhanced Raman spectroscopy for the analysis of the biologically relevant molecule adenine and found a limit of detection of 10-7 M at 785 nm excitation. The integration of PLAL and wet chemical methods enabled the relatively fast and cost-effective production of MPNPs characterized by high SERS sensitivity and signal reproducibility that are required in various fields, including biomedicine, food safety, materials science, security, and defense.
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Affiliation(s)
- Martynas Talaikis
- Department
of Organic Chemistry, Center for Physical
Sciences and Technology (FTMC), Saulėtekio Av. 3, LT-10257 Vilnius, Lithuania
| | - Lina Mikoliunaite
- Department
of Organic Chemistry, Center for Physical
Sciences and Technology (FTMC), Saulėtekio Av. 3, LT-10257 Vilnius, Lithuania
- Department
of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania
| | - Aikaterini-Maria Gkouzi
- Department
of Organic Chemistry, Center for Physical
Sciences and Technology (FTMC), Saulėtekio Av. 3, LT-10257 Vilnius, Lithuania
| | - Vita Petrikaitė
- Department
of Laser Technologies, Center for Physical
Sciences and Technology (FTMC), Savanorių Av. 231, LT-02300 Vilnius, Lithuania
| | - Evaldas Stankevičius
- Department
of Laser Technologies, Center for Physical
Sciences and Technology (FTMC), Savanorių Av. 231, LT-02300 Vilnius, Lithuania
| | - Audrius Drabavičius
- Department
of Characterization of Materials Structure, Center for Physical Sciences and Technology (FTMC), Saulėtekio Av. 3, LT-10257 Vilnius, Lithuania
| | - Algirdas Selskis
- Department
of Characterization of Materials Structure, Center for Physical Sciences and Technology (FTMC), Saulėtekio Av. 3, LT-10257 Vilnius, Lithuania
| | - Remigijus Juškėnas
- Department
of Characterization of Materials Structure, Center for Physical Sciences and Technology (FTMC), Saulėtekio Av. 3, LT-10257 Vilnius, Lithuania
| | - Gediminas Niaura
- Department
of Organic Chemistry, Center for Physical
Sciences and Technology (FTMC), Saulėtekio Av. 3, LT-10257 Vilnius, Lithuania
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5
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Barzkar A, Beni AS. Fe 3O 4@C@MCM41-guanidine core-shell nanostructures as a powerful and recyclable nanocatalyst with high performance for synthesis of Knoevenagel reaction. Sci Rep 2023; 13:10336. [PMID: 37365219 DOI: 10.1038/s41598-023-36352-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 06/01/2023] [Indexed: 06/28/2023] Open
Abstract
In this study, preparation, characterization and catalytic application of a novel core-shell structured magnetic with carbon and mesoporous silica shells supported guanidine (Fe3O4@C@MCM41-guanidine) are developed. The Fe3O4@C@MCM41-guanidine was prepared via surfactant directed hydrolysis and condensation of tetraethyl orthosilicate around Fe3O4@C NPs followed by treatment with guanidinium chloride. This nanocomposite was characterized by using Fourier transform infrared spectroscopy, vibrating sample magnetometry, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, thermal gravimetric analysis, wide-angle X-ray diffraction and low-angle X-ray diffraction techniques. This nanocomposite have high thermal, chemical stability, and uniform size. Fe3O4@C@MCM41-guanidine catalyst demonstrated high yield (91-98%) to prepare of Knoevenagel derivatives under the solvent free conditions at room temperature in the shortest time. Also, this catalyst was recovered and reused 10 times without significant decrease in efficiency and stability. Fortunately, an excellent level of yield (98-82%) was observed in the 10 consecutive catalyst cycles.
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Affiliation(s)
- Aliyeh Barzkar
- Department of Chemistry, Faculty of Science, Yasouj University, Yasouj, 75918-74831, Iran
| | - Alireza Salimi Beni
- Department of Chemistry, Faculty of Science, Yasouj University, Yasouj, 75918-74831, Iran.
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6
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Ying Y, Tang Z, Liu Y. Material design, development, and trend for surface-enhanced Raman scattering substrates. NANOSCALE 2023. [PMID: 37335252 DOI: 10.1039/d3nr01456h] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is a powerful and non-invasive spectroscopic technique that can provide rich and specific chemical fingerprint information for various target molecules through effective SERS substrates. In view of the strong dependence of the SERS signals on the properties of the SERS substrates, design, exploration, and construction of novel SERS-active nanomaterials with low cost and excellent performance as the SERS substrates have always been the foundation and the top priority for the development and application of the SERS technology. This review specifically focuses on the extensive progress made in the SERS-active nanomaterials and their enhancement mechanism since the first discovery of SERS on the nanostructured plasmonic metal substrates. The design principles, unique functions, and influencing factors on the SERS signals of different types of SERS-active nanomaterials are highlighted, and insight into their future challenge and development trends is also suggested. It is highly expected that this review could benefit a complete understanding of the research status of the SERS-active nanomaterials and arouse the research enthusiasm for them, leading to further development and wider application of the SERS technology.
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Affiliation(s)
- Yue Ying
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiyong Tang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yaling Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
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7
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Hu Y, Li Y, Yu L, Zhang Y, Lai Y, Zhang W, Xie W. Universal linker-free assembly of core-satellite hetero-superstructures. Chem Sci 2022; 13:11792-11797. [PMID: 36320924 PMCID: PMC9580622 DOI: 10.1039/d2sc02843c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 09/17/2022] [Indexed: 11/21/2022] Open
Abstract
Colloidal superstructures comprising hetero-building blocks often show unanticipated physical and chemical properties. Here, we present a universal assembly methodology to prepare hetero-superstructures. This straightforward methodology allows the assembly of building block materials varying from inorganic nanoparticles to living cells to form superstructures. No molecular linker is required to bind the building blocks together and thus the products do not contain any unwanted adscititious material. The Fourier transform infrared spectra, high resolution transmission electron microscopic images and nanoparticle adhesion force measurement results reveal that the key to self-organization is stripping surface ligands by adding non-polar solvents or neutralizing surface charge by adding salts, which allow us to tune the balance between van der Waals attraction and electrostatic repulsion in the colloid so as to trigger the assembling process. As a proof-of-concept, the superior photocatalytic activity and single-particle surface-enhanced Raman scattering of the corresponding superstructures are demonstrated. Our methodology greatly extends the scope of building blocks for superstructure assembly and enables scalable construction of colloidal multifunctional materials.
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Affiliation(s)
- Yanfang Hu
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Lab of Molecular Recognition & Biosensing, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Yonglong Li
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Lab of Molecular Recognition & Biosensing, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Linfeng Yu
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Lab of Molecular Recognition & Biosensing, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Yuying Zhang
- School of Medicine, Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Yuming Lai
- National Center for Materials Service Safety, University of Science and Technology Beijing Beijing 100083 China
| | - Wei Zhang
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Lab of Molecular Recognition & Biosensing, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Wei Xie
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Lab of Molecular Recognition & Biosensing, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University Weijin Rd. 94 Tianjin 300071 China
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8
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de la Encarnación C, Jimenez de Aberasturi D, Liz-Marzán LM. Multifunctional plasmonic-magnetic nanoparticles for bioimaging and hyperthermia. Adv Drug Deliv Rev 2022; 189:114484. [PMID: 35944586 DOI: 10.1016/j.addr.2022.114484] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/28/2022] [Accepted: 08/03/2022] [Indexed: 01/24/2023]
Abstract
Multicompartment nanoparticles have raised great interest for different biomedical applications, thanks to the combined properties of different materials within a single entity. These hybrid systems have opened new avenues toward diagnosis and combination therapies, thus becoming preferred theranostic agents. When hybrid nanoparticles comprise magnetic and plasmonic components, both magnetic and optical properties can be achieved, which are potentially useful for multimodal bioimaging, hyperthermal therapies and magnetically driven selective delivery. Nanostructures comprising iron oxide and gold are usually selected for biomedical applications, as they display size-dependent properties, biocompatibility, and unique physical and chemical characteristics that can be tuned through highly precise synthetic protocols. We provide herein an overview of the most recent synthetic protocols to prepare magnetic-plasmonic nanostructures made of iron oxide and gold, to then highlight the progress made on multifunctional magnetic-plasmonic bioimaging and heating-based therapies. We discuss the advantages and limitations of the various systems in these directions.
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Affiliation(s)
- Cristina de la Encarnación
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014 Donostia-San Sebastián, Spain; Department of Applied Chemistry, University of the Basque Country, 20018 Donostia-San Sebastián, Spain
| | - Dorleta Jimenez de Aberasturi
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014 Donostia-San Sebastián, Spain; CIBER-BBN, ISCIII, 20014 Donostia-San Sebastián, Spain; Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain.
| | - Luis M Liz-Marzán
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014 Donostia-San Sebastián, Spain; CIBER-BBN, ISCIII, 20014 Donostia-San Sebastián, Spain; Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain.
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9
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Michałowska A, Krajczewski J, Kudelski A. Magnetic iron oxide cores with attached gold nanostructures coated with a layer of silica: An easily, homogeneously deposited new nanomaterial for surface-enhanced Raman scattering measurements. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 277:121266. [PMID: 35452900 DOI: 10.1016/j.saa.2022.121266] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/31/2022] [Accepted: 04/11/2022] [Indexed: 05/13/2023]
Abstract
Nanostructures made of magnetic cores (Fe3O4) with many smaller plasmonic (Au) nanostructures attached were covered with a very thin layer of silica. The first example of the application of this type of material for surface-enhanced Raman scattering (SERS) measurements is presented. (Fe3O4@Au)@SiO2 nanoparticles turned out to be very efficient substrates for SERS measurements. Moreover, due to the nanomaterial's strong magnetic properties, it can be easily manipulated using a magnetic field, and it is therefore possible to form homogeneous layers (with no significant 'coffee-ring' effect) of (Fe3O4@Au)@SiO2 nanoparticles using a very simple procedure: depositing a drop of a sol of such nanoparticles and evaporating the solvent after placing the sample in a strong magnetic field. Synthesised (Fe3O4@Au)@SiO2 nanostructures have been used for the SERS detection of penicillin G in milk. Good quality SERS spectra of penicillin G were obtained even at a concentration of penicillin G in milk of 1 nmol/l - this means that the SERS detection of penicillin G in milk is possible at a concentration lower than the maximum residue limit of penicillin G in milk established by the European Commission. .
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Affiliation(s)
| | - Jan Krajczewski
- Faculty of Chemistry, University of Warsaw, ul. Pasteura 1, 02-093 Warsaw, Poland
| | - Andrzej Kudelski
- Faculty of Chemistry, University of Warsaw, ul. Pasteura 1, 02-093 Warsaw, Poland.
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10
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Mikoliunaite L, Talaikis M, Michalowska A, Dobilas J, Stankevic V, Kudelski A, Niaura G. Thermally Stable Magneto-Plasmonic Nanoparticles for SERS with Tunable Plasmon Resonance. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2860. [PMID: 36014725 PMCID: PMC9416134 DOI: 10.3390/nano12162860] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/12/2022] [Accepted: 08/17/2022] [Indexed: 05/04/2023]
Abstract
Bifunctional magneto-plasmonic nanoparticles that exhibit synergistically magnetic and plasmonic properties are advanced substrates for surface-enhanced Raman spectroscopy (SERS) because of their excellent controllability and improved detection potentiality. In this study, composite magneto-plasmonic nanoparticles (Fe3O4@AgNPs) were formed by mixing colloid solutions of 50 nm-sized magnetite nanoparticles with 13 nm-sized silver nanoparticles. After drying of the layer of composite Fe3O4@AgNPs under a strong magnetic field, they outperformed the conventional silver nanoparticles during SERS measurements in terms of signal intensity, spot-to-spot, and sample-to-sample reproducibility. The SERS enhancement factor of Fe3O4@AgNP-adsorbed 4-mercaptobenzoic acid (4-MBA) was estimated to be 3.1 × 107 for a 633 nm excitation. In addition, we show that simply by changing the initial volumes of the colloid solutions, it is possible to control the average density of the silver nanoparticles, which are attached to a single magnetite nanoparticle. UV-Vis and SERS data revealed a possibility to tune the plasmonic resonance frequency of Fe3O4@AgNPs. In this research, the plasmon resonance maximum varied from 470 to 800 nm, suggesting the possibility to choose the most suitable nanoparticle composition for the particular SERS experiment design. We emphasize the increased thermal stability of composite nanoparticles under 532 and 442 nm laser light irradiation compared to that of bare Fe3O4 nanoparticles. The Fe3O4@AgNPs were further characterized by XRD, TEM, and magnetization measurements.
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Affiliation(s)
- Lina Mikoliunaite
- Department of Organic Chemistry, Center for Physical Sciences and Technology (FTMC), Sauletekio Av. 3, LT-10257 Vilnius, Lithuania
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko St. 24, LT-03225 Vilnius, Lithuania
| | - Martynas Talaikis
- Department of Organic Chemistry, Center for Physical Sciences and Technology (FTMC), Sauletekio Av. 3, LT-10257 Vilnius, Lithuania
| | | | - Jorunas Dobilas
- Department of Functional Materials and Electronics, Center for Physical Sciences and Technology (FTMC), Sauletekio al. 3, LT-10257 Vilnius, Lithuania
| | - Voitech Stankevic
- Department of Functional Materials and Electronics, Center for Physical Sciences and Technology (FTMC), Sauletekio al. 3, LT-10257 Vilnius, Lithuania
| | - Andrzej Kudelski
- Faculty of Chemistry, University of Warsaw, Pasteura St. 1, 02-093 Warsaw, Poland
| | - Gediminas Niaura
- Department of Organic Chemistry, Center for Physical Sciences and Technology (FTMC), Sauletekio Av. 3, LT-10257 Vilnius, Lithuania
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11
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Yin B, Zhang Q, Xia X, Li C, Ho WKH, Yan J, Huang Y, Wu H, Wang P, Yi C, Hao J, Wang J, Chen H, Wong SHD, Yang M. A CRISPR-Cas12a integrated SERS nanoplatform with chimeric DNA/RNA hairpin guide for ultrasensitive nucleic acid detection. Theranostics 2022; 12:5914-5930. [PMID: 35966585 PMCID: PMC9373821 DOI: 10.7150/thno.75816] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 08/01/2022] [Indexed: 11/05/2022] Open
Abstract
Background: CRISPR-Cas12a has been integrated with nanomaterial-based optical techniques, such as surface-enhanced Raman scattering (SERS), to formulate a powerful amplification-free nucleic acid detection system. However, nanomaterials impose steric hindrance to limit the accessibility of CRISPR-Cas12a to the narrow gaps (SERS hot spots) among nanoparticles (NPs) for producing a significant change in signals after nucleic acid detection. Methods: To overcome this restriction, we specifically design chimeric DNA/RNA hairpins (displacers) that can be destabilized by activated CRISPR-Cas12a in the presence of target DNA, liberating excessive RNA that can disintegrate a core-satellite nanocluster via toehold-mediated strand displacement for orchestrating a promising "on-off" nucleic acid biosensor. The core-satellite nanocluster comprises a large gold nanoparticle (AuNP) core surrounded by small AuNPs with Raman tags via DNA hybridization as an ultrabright Raman reporter, and its disassembly leads to a drastic decrease of SERS intensity as signal readouts. We further introduce a magnetic core to the large AuNPs that can facilitate their separation from the disassembled nanostructures to suppress the background for improving detection sensitivity. Results: As a proof-of-concept study, our findings showed that the application of displacers was more effective in decreasing the SERS intensity of the system and attained a better limit of detection (LOD, 10 aM) than that by directly using activated CRISPR-Cas12a, with high selectivity and stability for nucleic acid detection. Introducing magnetic-responsive functionality to our system further improves the LOD to 1 aM. Conclusion: Our work not only offers a platform to sensitively and selectively probe nucleic acids without pre-amplification but also provides new insights into the design of the CRISPR-Cas12a/SERS integrated system to resolve the steric hindrance of nanomaterials for constructing biosensors.
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Affiliation(s)
- Bohan Yin
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Qin Zhang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Xinyue Xia
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong 999077, China
| | - Chuanqi Li
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Willis Kwun Hei Ho
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Jiaxiang Yan
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Yingying Huang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Honglian Wu
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Pui Wang
- Department of Microbiology, The University of Hong Kong, Pokfulam, Hong Kong 999077, China
| | - Changqing Yi
- Key Laboratory of Sensing Technology and Biomedical Instruments (Guangdong Province), School of Biomedical Engineering, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Jianhua Hao
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Jianfang Wang
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong 999077, China
| | - Honglin Chen
- Department of Microbiology, The University of Hong Kong, Pokfulam, Hong Kong 999077, China
| | - Siu Hong Dexter Wong
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
- Research Institute for Sports Science and Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Mo Yang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
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12
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The First Silver-Based Plasmonic Nanomaterial for Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy with Magnetic Properties. Molecules 2022; 27:molecules27103081. [PMID: 35630560 PMCID: PMC9143147 DOI: 10.3390/molecules27103081] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/06/2022] [Accepted: 05/08/2022] [Indexed: 11/30/2022] Open
Abstract
Nanostructures made of magnetic cores (from Fe3O4) with attached silver plasmonic nanostructures were covered with a very thin layer of silica. The (Fe3O4@Ag)@SiO2 magnetic–plasmonic nanomaterial can be manipulated using a magnetic field. For example, one can easily form homogeneous layers from this nanomaterial using a very simple procedure: deposition of a layer of a sol of such a nanostructure and evaporation of the solvent after placing the sample in a strong magnetic field. Due to the rapid magnetic immobilization of the magnetic–plasmonic nanomaterial on the investigated surface, no coffee-ring effect occurs during the evaporation of the solvent. In this contribution, we report the first example of a magnetic, silver-based plasmonic nanomaterial for shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS). Nanoresonators based on silver plasmonic nanostructures locally enhance the intensity of the exciting electromagnetic radiation in a significantly broader frequency range than the previously used magnetic SHINERS nanoresonators with gold plasmonic nanostructures. Example applications where the resulting nanomaterial was used for the SHINERS investigation of a monolayer of mercaptobenzoic acid chemisorbed on platinum, and for a standard SERS determination of dopamine, are also presented.
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13
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Chokkareddy R, Kanchi S, Inamuddin. A Mini Review on Surface-Enhanced Raman Scattering based Nanoclusters
for Sensing and Imaging Applications. CURR ANAL CHEM 2022. [DOI: 10.2174/1573411017999210101162831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
The invention of enhanced Raman scattering by adsorbing molecules on nanostructured metal
surfaces is a milestone in the development of spectroscopic and analytical techniques. Important experimental and
theoretical efforts were geared towards understanding the Surface Enhanced Raman Scattering effect (SERS) and evaluating
its significance in a wide range of fields in different types of ultrasensitive sensing applications.
Methods:
Metal nanoclusters have been widely studied due to their unique structure and individual properties, which place
them among single metal atoms and larger nanoparticles. In general, the nanoparticles with a size less than 2 nm is defined
as nanoclusters (NCs) and they possess distinct optical properties. In addition, the excited electrons from absorption bands
results in the emission of positive luminescence associated to the quantum size effect in which separate energy levels are
produced.
Results:
It is demonstrated that fluorescent based SERS investigations of metal nanoparticles have showed more
photostability, high compatibility, and good water solubility, has resulted in high sensitivity, better imaging and sensing
experience in the biomedical applications.
Conclusion:
In the present review, we report recent trends in the synthesis of metal nanoclusters and their applications in
biosensing and bio-imaging applications due some benefits including cost-effectiveness, easy synthesis routes and less
consumption of sample volumes. Outcomes of this study confirms that SERS based fluorescent nanoclusters could be one
of thrust research areas in biochemistry and biomedical engineering.
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Affiliation(s)
| | - Suvardhan Kanchi
- Department of Chemistry, Durban University of Technology, Durban 4000, South Africa
| | - Inamuddin
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589,Saudi Arabia
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14
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Recent Advances of Magnetic Gold Hybrids and Nanocomposites, and Their Potential Biological Applications. MAGNETOCHEMISTRY 2022. [DOI: 10.3390/magnetochemistry8040038] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Magnetic gold nanoparticles (mGNP) have become a great interest of research for nanomaterial scientists because of their significant magnetic and plasmonic properties applicable in biomedical applications. Various synthetic approaches and surface modification techniques have been used for mGNP including the most common being the coprecipitation, thermal decomposition, and microemulsion methods in addition to the Brust Schiffrin technique, which involves the reduction of metal precursors in a two-phase system (water and toluene) in the presence of alkanethiol. The hybrid magnetic–plasmonic nanoparticles based on iron core and gold shell are being considered as potential theranostic agents. In this critical review, in addition to future works, we have summarized recent developments for synthesis and surface modification of mGNP with their applications in modern biomedical science such as drug and gene delivery, bioimaging, biosensing, and neuro-regeneration, neuro-degenerative and arthritic disorders. This review includes techniques and biological applications of mGNP majorly based on research from the previous six years.
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15
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Kwizera EA, Stewart S, Mahmud MM, He X. Magnetic Nanoparticle-Mediated Heating for Biomedical Applications. JOURNAL OF HEAT TRANSFER 2022; 144:030801. [PMID: 35125512 PMCID: PMC8813031 DOI: 10.1115/1.4053007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/03/2021] [Indexed: 05/17/2023]
Abstract
Magnetic nanoparticles, especially superparamagnetic nanoparticles (SPIONs), have attracted tremendous attention for various biomedical applications. Facile synthesis and functionalization together with easy control of the size and shape of SPIONS to customize their unique properties, have made it possible to develop different types of SPIONs tailored for diverse functions/applications. More recently, considerable attention has been paid to the thermal effect of SPIONs for the treatment of diseases like cancer and for nanowarming of cryopreserved/banked cells, tissues, and organs. In this mini-review, recent advances on the magnetic heating effect of SPIONs for magnetothermal therapy and enhancement of cryopreservation of cells, tissues, and organs, are discussed, together with the non-magnetic heating effect (i.e., high Intensity focused ultrasound or HIFU-activated heating) of SPIONs for cancer therapy. Furthermore, challenges facing the use of magnetic nanoparticles in these biomedical applications are presented.
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Affiliation(s)
- Elyahb Allie Kwizera
- Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Drive, College Park, MD 20742
| | - Samantha Stewart
- Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Drive, College Park, MD 20742
| | - Md Musavvir Mahmud
- Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Drive, College Park, MD 20742
| | - Xiaoming He
- Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Drive, College Park, MD 20742; Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201
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16
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Abdel-Hady EE, Shaban M, Abdel-Hamed MO, Gamal A, Yehia H, Ahmed AM. Synthesis and Characterization of NiCoPt/CNFs Nanoparticles as an Effective Electrocatalyst for Energy Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:492. [PMID: 35159837 PMCID: PMC8840489 DOI: 10.3390/nano12030492] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 01/22/2022] [Accepted: 01/27/2022] [Indexed: 11/23/2022]
Abstract
In this work, three nanoparticle samples, Ni4Co2Pt/CNFs, Ni5CoPt/CNFs and Ni6Pt/CNFs, were designed according to the molar ratio during loading on carbon nanofibers (CNFs) using electrospinning and carbonization at 900 °C for 7 h in an argon atmosphere. The metal loading and carbon ratio were fixed at 20 and 80 wt%, respectively. Various analysis tools were used to investigate the chemical composition, structural, morphological, and electrochemical (EC) properties. For samples with varying Co%, the carbonization process reduces the fiber diameter of the obtained electrospun nanofibers from 200-580 nm to 150-200 nm. The EDX mapping revealed that nickel, platinum, and cobalt were evenly and uniformly incorporated into the carbonized PVANFs. The prepared Ni-Co-Pt/CNFs have a face-centered cubic (FCC) structure with slightly increased crystallite size as the Co% decreased. The electrocatalytic properties of the samples were investigated for ethanol, methanol and urea electrooxidation. Using cyclic voltammetry (CV), chronoamperometry, and electrochemical impedance measurements, the catalytic performance and electrode stability were investigated as a function of electrolyte concentration, scan rate, and reaction time. When Co is added to Ni, the activation energy required for the electrooxidation reaction decreases and the electrode stability increases. In 1.5 M methanol, the Ni5CoPt/CNFs electrode showed the lowest onset potential and the highest current density (30.6 A/g). This current density is reduced to 28.2 and 21.2 A/g for 1.5 M ethanol and 0.33 M urea, respectively. The electrooxidation of ethanol, methanol, and urea using our electrocatalysts is a combination of kinetic/diffusion control limiting reactions. This research provided a unique approach to developing an efficient Ni-Co-Pt-based electrooxidation catalyst for ethanol, methanol and urea.
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Affiliation(s)
- Esam E. Abdel-Hady
- Physics Department, Faculty of Science, Minia University, Minia 61519, Egypt; (E.E.A.-H.); (M.O.A.-H.); (H.Y.)
- Academy of Scientific Research and Technology (ASRT) of the Arab Republic of Egypt, Cairo 11516, Egypt
| | - Mohamed Shaban
- Department of Physics, Faculty of Science, Islamic University in Madinah, Al-Madinah Al-Munawarah 42351, Saudi Arabia
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt; (A.G.); (A.M.A.)
| | - Mohamed O. Abdel-Hamed
- Physics Department, Faculty of Science, Minia University, Minia 61519, Egypt; (E.E.A.-H.); (M.O.A.-H.); (H.Y.)
- Academy of Scientific Research and Technology (ASRT) of the Arab Republic of Egypt, Cairo 11516, Egypt
| | - Ahmed Gamal
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt; (A.G.); (A.M.A.)
| | - Heba Yehia
- Physics Department, Faculty of Science, Minia University, Minia 61519, Egypt; (E.E.A.-H.); (M.O.A.-H.); (H.Y.)
| | - Ashour M. Ahmed
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt; (A.G.); (A.M.A.)
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17
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Kumar TSJ, Arumugam M. Optical Properties of Magnetic Nanoalloys and Nanocomposites. HANDBOOK OF MAGNETIC HYBRID NANOALLOYS AND THEIR NANOCOMPOSITES 2022:547-573. [DOI: 10.1007/978-3-030-90948-2_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
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18
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Kumar TSJ, Arumugam M. Optical Properties of Magnetic Nanoalloys and Nanocomposites. HANDBOOK OF MAGNETIC HYBRID NANOALLOYS AND THEIR NANOCOMPOSITES 2022:1-27. [DOI: 10.1007/978-3-030-34007-0_18-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 02/25/2022] [Indexed: 06/16/2023]
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19
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Wen H, Luna-Romera JM, Riquelme JC, Dwyer C, Chang SLY. Statistically Representative Metrology of Nanoparticles via Unsupervised Machine Learning of TEM Images. NANOMATERIALS 2021; 11:nano11102706. [PMID: 34685147 PMCID: PMC8539342 DOI: 10.3390/nano11102706] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/07/2021] [Accepted: 10/06/2021] [Indexed: 11/16/2022]
Abstract
The morphology of nanoparticles governs their properties for a range of important applications. Thus, the ability to statistically correlate this key particle performance parameter is paramount in achieving accurate control of nanoparticle properties. Among several effective techniques for morphological characterization of nanoparticles, transmission electron microscopy (TEM) can provide a direct, accurate characterization of the details of nanoparticle structures and morphology at atomic resolution. However, manually analyzing a large number of TEM images is laborious. In this work, we demonstrate an efficient, robust and highly automated unsupervised machine learning method for the metrology of nanoparticle systems based on TEM images. Our method not only can achieve statistically significant analysis, but it is also robust against variable image quality, imaging modalities, and particle dispersions. The ability to efficiently gain statistically significant particle metrology is critical in advancing precise particle synthesis and accurate property control.
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Affiliation(s)
- Haotian Wen
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Correspondence: (H.W.); (S.L.Y.C.)
| | - José María Luna-Romera
- Software and Computing Systems, Universidad de Sevilla, 41004 Seville, Spain; (J.M.L.-R.); (J.C.R.)
| | - José C. Riquelme
- Software and Computing Systems, Universidad de Sevilla, 41004 Seville, Spain; (J.M.L.-R.); (J.C.R.)
| | - Christian Dwyer
- Electron Imaging and Spectroscopy Tools, Sydney, NSW 2219, Australia;
| | - Shery L. Y. Chang
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Mark Wainwright Analytical Centre, Electron Microscope Unit, University of New South Wales, Sydney, NSW 2052, Australia
- Correspondence: (H.W.); (S.L.Y.C.)
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20
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Tarkistani MAM, Komalla V, Kayser V. Recent Advances in the Use of Iron-Gold Hybrid Nanoparticles for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1227. [PMID: 34066549 PMCID: PMC8148580 DOI: 10.3390/nano11051227] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 04/26/2021] [Accepted: 04/28/2021] [Indexed: 12/26/2022]
Abstract
Recently, there has been an increased interest in iron-gold-based hybrid nanostructures, due to their combined outstanding optical and magnetic properties resulting from the usage of two separate metals. The synthesis of these nanoparticles involves thermal decomposition and modification of their surfaces using a variety of different methods, which are discussed in this review. In addition, different forms such as core-shell, dumbbell, flower, octahedral, star, rod, and Janus-shaped hybrids are discussed, and their unique properties are highlighted. Studies on combining optical response in the near-infrared window and magnetic properties of iron-gold-based hybrid nanoparticles as multifunctional nanoprobes for drug delivery, magnetic-photothermal heating as well as contrast agents during magnetic and optical imaging and magnetically-assisted optical biosensing to detect traces of targeted analytes inside the body has been reviewed.
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Affiliation(s)
| | | | - Veysel Kayser
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia; (M.A.M.T.); (V.K.)
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21
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Ling C, Wang X, Shen Y. Advances in Hollow Inorganic Nanomedicines for Photothermal-Based Therapies. Int J Nanomedicine 2021; 16:493-513. [PMID: 33519198 PMCID: PMC7837554 DOI: 10.2147/ijn.s285115] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 01/04/2021] [Indexed: 12/11/2022] Open
Abstract
Nanotechnology has prompted the development of hollow inorganic nanomedicine. These medicines are now widely investigated as photothermal-based therapies for various diseases due to their high loading capacity, tuneable wavelength, relatively small size and low density. We begin this review with a brief introduction, followed by a summary of the development of imaging-guided photothermal therapy (PTT) for cancer treatment during the last three years (from 2017 to 2020). We then introduce the antibacterial effects of these medicines on some bacterial infections, in which the pathogenic bacteria can be killed by mild photothermal effects, ions and antibiotic release. Other diseases can also be treated using hollow inorganic photothermal agents. Specifically, we discuss the use of PTT for treating Alzheimer's disease, obesity and endometriosis. Finally, we share our perspectives on the current challenges and future prospects of using hollow inorganic materials in clinical PTT for various diseases.
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Affiliation(s)
- Chen Ling
- School of Pharmacy, China Pharmaceutical University, Nanjing 211100, People's Republic of China
| | - Xiaobo Wang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211100, People's Republic of China
| | - Yan Shen
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211100, People's Republic of China
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22
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Taniguchi K, Cuya Huaman JL, Iwata D, Yokoyama S, Matsumoto T, Suzuki K, Miyamura H, Balachandran J. Pt distribution-controlled Ni–Pt nanocrystals via an alcohol reduction technique for the oxygen reduction reaction. NEW J CHEM 2021. [DOI: 10.1039/d1nj01360b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic performance and durability of Ni–Pt alloy nanoparticles synthesized using an alcohol reduction technique were enhanced by controlling the metallic Pt distribution.
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Affiliation(s)
- Kaneyuki Taniguchi
- Department of Materials Science
- The University of Shiga Prefecture
- Hikone 522-8533
- Japan
| | - Jhon L. Cuya Huaman
- Department of Materials Science
- The University of Shiga Prefecture
- Hikone 522-8533
- Japan
| | - Daichi Iwata
- Department of Materials Science
- The University of Shiga Prefecture
- Hikone 522-8533
- Japan
| | - Shun Yokoyama
- Graduate School of Environmental Studies
- Tohoku University
- Sendai 980-8579
- Japan
| | - Takatoshi Matsumoto
- Institute of Multidisciplinary Research for Advanced Materials
- Tohoku University
- Sendai 980-8577
- Japan
| | - Kazumasa Suzuki
- Department of Materials Science
- The University of Shiga Prefecture
- Hikone 522-8533
- Japan
| | - Hiroshi Miyamura
- Department of Materials Science
- The University of Shiga Prefecture
- Hikone 522-8533
- Japan
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23
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Biglione C, Glitscher EA, Arora S, Klemke B, Giulbudagian M, Laux P, Luch A, Bergueiro J, Calderón M. Galvanic Replacement as a Synthetic Tool for the Construction of Anisotropic Magnetoplasmonic Nanocomposites with Synergistic Phototransducing and Magnetic Properties. ACS APPLIED MATERIALS & INTERFACES 2020; 12:56839-56849. [PMID: 33290035 DOI: 10.1021/acsami.0c18096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Magnetoplasmonic nanomaterials, which combine light and magnetic field responsiveness in an advantageous manner, are attractive candidates for bio-nanoapplications. However, the synthetic access to such hybrid particles has been limited by the incompatibility of the iron- and gold-based lattices. In this work, we provide the first insights into a new synthetic strategy for developing magnetoplasmonic anisotropic nanocomposites with prominent phototransducing properties. In our approach, magnetic nanocubes based on an alloy of iron oxide, zinc, and silver were constructed. In a key second stage, the galvanic replacement of silver with gold atoms yielded satellite-like magnetoplasmonic anisotropic structures. Superior magnetic and photoconverting properties were observed for the novel magnetoplasmonic nanocomposites when compared with the pure parent structures. Moreover, the synergy between the magnetic and optical stimuli was examined, showing shape-dependent contributions in the magnetization experiments. More importantly, an excellent cell ablation capability upon laser irradiation was observed for the magnetoplasmonic nanocomposites compared to the pure magnetic or plasmonic controls. Further demonstration of these novel theragnostic agents as MRI contrast agents is also reported even during the light-irradiation event. Thus, the described particles showed promising properties for bioapplications emerging from the novel synthetic methodology.
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Affiliation(s)
- Catalina Biglione
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Emanuel A Glitscher
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Smriti Arora
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Bastian Klemke
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meiter Platz 1, 14109 Berlin, Germany
| | - Michael Giulbudagian
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589 Berlin, Germany
| | - Peter Laux
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589 Berlin, Germany
| | - Andreas Luch
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589 Berlin, Germany
| | - Julian Bergueiro
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Marcelo Calderón
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
- POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Spain
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24
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Broadening and Enhancing Bacteriocins Activities by Association with Bioactive Substances. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17217835. [PMID: 33114656 PMCID: PMC7663325 DOI: 10.3390/ijerph17217835] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 12/14/2022]
Abstract
Bacteriocins are antimicrobial peptides some of which are endowed with antiviral, anticancer and antibiofilm properties. These properties could be improved through synergistic interactions of these bacteriocins with other bioactive molecules such as antibiotics, phages, nanoparticles and essential oils. A number of studies are steadily reporting the effects of these combinations as new and potential therapeutic strategies in the future, as they may offer many incentives over existing therapies. In particular, bacteriocins can benefit from combination with nanoparticles which can improve their stability and solubility, and protect them from enzymatic degradation, reduce their interactions with other molecules and improve their bioavailability. Furthermore, the combination of bacteriocins with other antimicrobials is foreseen as a way to reduce the development of antibiotic resistance due to the involvement of several modes of action. Another relevant advantage of these synergistic combinations is that it decreases the concentration of each antimicrobial component, thereby reducing their side effects such as their toxicity. In addition, combination can extend the utility of bacteriocins as antiviral or anticancer agents. Thus, in this review, we report and discuss the synergistic effects of bacteriocin combinations as medicines, and also for other diverse applications including, antiviral, antispoilage, anticancer and antibiofilms.
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25
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Wilson RE, O'Connor R, Gallops CE, Kwizera EA, Noroozi B, Morshed BI, Wang Y, Huang X. Immunomagnetic Capture and Multiplexed Surface Marker Detection of Circulating Tumor Cells with Magnetic Multicolor Surface-Enhanced Raman Scattering Nanotags. ACS APPLIED MATERIALS & INTERFACES 2020; 12:47220-47232. [PMID: 32966038 DOI: 10.1021/acsami.0c12395] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Circulating tumor cells (CTCs) have substantial clinical implications in cancer diagnosis and monitoring. Although significant progress has been made in developing technologies for CTC detection and counting, the ability to quantitatively detect multiple surface protein markers on individual tumor cells remains very limited. In this work, we report a multiplexed method that uses magnetic multicolor surface-enhanced Raman scattering (SERS) nanotags in conjunction with a chip-based immunomagnetic separation to quantitatively and simultaneously detect four surface protein markers on individual tumor cells in whole blood. Four-color SERS nanotags were prepared using magnetic-optical iron oxide-gold core-shell nanoparticles with different Raman reporters to recognize four different cancer markers with respective antibodies. A microfluidic device was fabricated to magnetically capture the nanoparticle-bound tumor cells and to perform online negative staining and single-cell optical detection. The level of each targeted protein was obtained by signal deconvolution of the mixed SERS signals from individual tumor cells using the classic least squares regression method. The method was tested with spiked tumor cells in human whole blood with three different breast cancer cell lines and compared with the results of purified cancer cells suspended in a phosphate buffer solution. The method, with either spiked cancer cells in blood or purified cancer cells, showed a strong correlation with purified cancer cells by enzyme-linked immunosorbent assay, suggesting the potential of our method for the reliable detection of multiple surface markers on CTCs. Combining immunomagnetic enrichment with high specificity, multiplexed targeting for the capture of CTC subpopulations, multicolor SERS detection with high sensitivity and specificity, microfluidics for handling rare cells and magnetic-plasmonic nanoparticles for dual enrichment and detection, our method provides an integrated, yet a simple and an efficient platform that has the potential to more sensitively detect and monitor cancer metastasis.
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Affiliation(s)
- Raymond Edward Wilson
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Ryan O'Connor
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Caleb Edward Gallops
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Elyahb Allie Kwizera
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Babak Noroozi
- Department of Computer Science, Texas Tech University, Lubbock, Texas 79409, United States
| | - Bashir I Morshed
- Department of Computer Science, Texas Tech University, Lubbock, Texas 79409, United States
| | - Yongmei Wang
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Xiaohua Huang
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
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Ruíz-Baltazar ÁDJ. Green synthesis assisted by sonochemical activation of Fe3O4-Ag nano-alloys: Structural characterization and studies of sorption of cationic dyes. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108148] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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27
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Kaur R, Bakshi MS. Mechanistic Aspects of Simultaneous Extraction of Silver and Gold Nanoparticles across Aqueous-Organic Interfaces by Surface Active Iron Oxide Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:7505-7516. [PMID: 32520570 DOI: 10.1021/acs.langmuir.0c01102] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Surface active iron oxide nanoparticles (NPs) were used for the simultaneous extraction of water soluble Ag and Au NPs across an aqueous-organic interface from aqueous bulk. The surface activity of iron oxide NPs was achieved by using cationic Gemini surfactants of different architectures during the in situ synthesis of iron oxide NPs in hydrothermal synthesis. Aqueous bulk solubility of Ag and Au NPs was achieved by stabilizing them with conventional surfactants of different polarities such as SDS, CTAB, and DDM. The amphiphilic nature of iron oxide NPs demonstrated their remarkable ability to extract Ag and Au NPs through both hydrophilic and hydrophobic interactions. The mechanism of extraction from aqueous bulk was monitored by placing different amounts of surface active iron oxide NPs on the aqueous-organic interface and was studied with the help of UV-visible, DLS, and IR measurements. XPS and TEM measurements were used for the quantitative estimation of efficiency of extraction. Extraction was facilitated when both hydrophilic and hydrophobic interactions were participating simultaneously. Results may help in designing a suitable method for purification of industrial effluents contaminated with metal particulates simply by applying an external magnetic field rather than going through a complicated conventional filtration process.
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Affiliation(s)
- Rajpreet Kaur
- Department of Chemistry, Natural and Applied Sciences, University of Wisconsin - Green Bay, 2420 Nicolet Drive, Green Bay, Wisconsin 54311-7001, United States
| | - Mandeep Singh Bakshi
- Department of Chemistry, Natural and Applied Sciences, University of Wisconsin - Green Bay, 2420 Nicolet Drive, Green Bay, Wisconsin 54311-7001, United States
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Petrov D. Photopolarimetrical properties of coronavirus model particles: Spike proteins number influence. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 2020; 248:107005. [PMID: 32292212 DOI: 10.1016/j.jqsrt.2020.107095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 03/27/2020] [Accepted: 03/31/2020] [Indexed: 05/22/2023]
Abstract
Coronavirus virions have spherical shape surrounded by spike proteins. The coronavirus spike proteins are very effective molecular mechanisms, which provide the coronavirus entrance to the host cell. The number of these spikes is different; it dramatically depends on external conditions and determines the degree of danger of the virus. A larger number of spike proteins makes the virus infectivity stronger. This paper describes a mathematical model of the shape of coronavirus virions. Based on this model, the characteristics of light scattered by the coronavirus virions were calculated. It was found two main features of coronavirus model particles in the spectral region near 200 nm: a minimum of intensity and a sharp leap of the linear polarization degree. The effect of the spike protein number on the intensity and polarization properties of the scattered light was studied. It was determined that when the number of spike proteins decreases, both the intensity minimum and the position of the linear polarization leap shift to shorter wavelengths. This allows us to better evaluate the shape of the coronavirus virion, and, therefore, the infectious danger of the virus. It was shown that the shorter the wavelength of scattered light, the more reliably one can distinguish viruses from non-viruses. The developed model and the light scattering simulations based on it can be applied not only to coronaviruses, but also to other objects of a similar structure, for example, pollen.
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Affiliation(s)
- Dmitry Petrov
- Crimean Astrophysical Observatory (CrAO RAS), Nauchnyj, 298409, Crimea, Russian Federation
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29
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Charchi N, Li Y, Huber M, Kwizera EA, Huang X, Argyropoulos C, Hoang T. Small mode volume plasmonic film-coupled nanostar resonators. NANOSCALE ADVANCES 2020; 2:2397-2403. [PMID: 34046555 PMCID: PMC8153380 DOI: 10.1039/d0na00262c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 05/04/2020] [Indexed: 06/12/2023]
Abstract
Confining and controlling light in extreme subwavelength scales are tantalizing tasks. In this work, we report a study of individual plasmonic film-coupled nanostar resonators where polarized plasmonic optical modes are trapped in ultrasmall volumes. Individual gold nanostars, separated from a flat gold film by a thin dielectric spacer layer, exhibit a strong light confinement between the sub-10 nm volume of the nanostar's tips and the film. Through dark field scattering measurements of many individual nanostars, a statistical observation of the scattered spectra is obtained and compared with extensive simulation data to reveal the origins of the resonant peaks. We observe that an individual nanostar on a flat gold film can result in a resonant spectrum with single, double or multiple peaks. Further, these resonant peaks are strongly polarized under white light illumination. Our simulation data revealed that the resonant spectrum of an individual film-coupled nanostar resonator is related to the symmetry of the nanostar, as well as the orientation of the nanostar relative to its placement on the gold substrate. Our results demonstrate a simple new method to create an ultrasmall mode volume and polarization sensitive plasmonic platform which could be useful for applications in sensing or enhanced light-matter interactions.
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Affiliation(s)
- Negar Charchi
- Department of Physics and Materials Science, The University of MemphisMemphisTN 38152USA
| | - Ying Li
- Department of Electrical and Computer Engineering, University of Nebraska-LincolnLincolnNE 68588USA
| | - Margaret Huber
- Department of Physics and Materials Science, The University of MemphisMemphisTN 38152USA
| | | | - Xiaohua Huang
- Department of Chemistry, The University of MemphisMemphisTN 38152USA
| | - Christos Argyropoulos
- Department of Electrical and Computer Engineering, University of Nebraska-LincolnLincolnNE 68588USA
| | - Thang Hoang
- Department of Physics and Materials Science, The University of MemphisMemphisTN 38152USA
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Khatri DS, Li Y, Chen J, Stocks AE, Kwizera EA, Huang X, Argyropoulos C, Hoang T. Plasmon-assisted random lasing from a single-mode fiber tip. OPTICS EXPRESS 2020; 28:16417-16426. [PMID: 32549465 PMCID: PMC7340382 DOI: 10.1364/oe.391650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 06/11/2023]
Abstract
Random lasing occurs as the result of a coherent optical feedback from multiple scattering centers. Here, we demonstrate that plasmonic gold nanostars are efficient light scattering centers, exhibiting strong field enhancement at their nanotips, which assists a very narrow bandwidth and highly amplified coherent random lasing with a low lasing threshold. First, by embedding plasmonic gold nanostars in a rhodamine 6G dye gain medium, we observe a series of very narrow random lasing peaks with full-width at half-maximum ∼ 0.8 nm. In contrast, free rhodamine 6G dye molecules exhibit only a single amplified spontaneous emission peak with a broader linewidth of 6 nm. The lasing threshold for the dye with gold nanostars is two times lower than that for a free dye. Furthermore, by coating the tip of a single-mode optical fiber with gold nanostars, we demonstrate a collection of random lasing signal through the fiber that can be easily guided and analyzed. Time-resolved measurements show a significant increase in the emission rate above the lasing threshold, indicating a stimulated emission process. Our study provides a method for generating random lasing in the nanoscale with low threshold values that can be easily collected and guided, which promise a range of potential applications in remote sensing, information processing, and on-chip coherent light sources.
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Affiliation(s)
- Dipendra S. Khatri
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - Ying Li
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Jiyang Chen
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - Anna Elizabeth Stocks
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | | | - Xiaohua Huang
- Department of Chemistry, The University of Memphis, Memphis, TN 38152, USA
| | - Christos Argyropoulos
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Thang Hoang
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
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31
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Nguyen TT, Lau-Truong S, Mammeri F, Ammar S. Star-Shaped Fe 3-xO 4-Au Core-Shell Nanoparticles: From Synthesis to SERS Application. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E294. [PMID: 32050550 PMCID: PMC7075140 DOI: 10.3390/nano10020294] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 02/04/2020] [Accepted: 02/06/2020] [Indexed: 12/20/2022]
Abstract
In this work, the preparation of magneto-plasmonic granular nanostructures and their evaluation as efficient substrates for magnetically assisted surface enhanced Raman spectroscopy (SERS) sensing are discussed. These nanostructures consist of star-shaped gold Au shell grown on iron oxide Fe3-xO4 multicores. They were prepared by seed-mediated growth of anisotropic, in shape gold nanosatellites attached to the surface of polyol-made iron oxide polycrystals. In practice, the 180 nm-sized spherical iron oxide particles were functionalized by (3-aminopropyl) triethoxysilane (APTES) to become positively charged and to interact, in solution, with negatively charged 2 nm-sized Au single crystals, leading to nanohybrids. These hybrids acted subsequently as nucleation platforms for the growth of a branched gold shell, when they were contacted to a fresh HAuCl4 gold salt aqueous solution, in the presence of hydroquinone, a reducing agent, for an optimized nominal weight ratio between both the starting hybrids and the gold salt. As expected, the resulting nanocomposites exhibit a high saturation magnetization at room temperature and a rough enough plasmonic surface, making them easily attracted by a lab. magnet, while exhibiting a great number of SERS hot spots. Preliminary SERS detection assays were successfully performed on diluted aqueous thiram solution (10-8 M), using these engineered substrates, highlighting their capability to be used as chemical trace sensors.
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Affiliation(s)
- Thi Thuy Nguyen
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, 75013 Paris, France; (S.L.-T.); (S.A.)
- Department of Advanced Materials Science and Nanotechnology, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi 10000, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
- Institute of Physics, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
| | - Stephanie Lau-Truong
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, 75013 Paris, France; (S.L.-T.); (S.A.)
| | - Fayna Mammeri
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, 75013 Paris, France; (S.L.-T.); (S.A.)
| | - Souad Ammar
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, 75013 Paris, France; (S.L.-T.); (S.A.)
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Kheradmand E, Poursalehi R, Delavari H. Optical and magnetic properties of iron-enriched Fe/FexOy@Au magnetoplasmonic nanostructures. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-019-01246-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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33
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Zhu X, Bonnecaze RT, Truskett TM. Graphoepitaxy of hard spheres into square lattices. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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34
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Liu H, Zhang H, Wang J, Wei J. Effect of temperature on the size of biosynthesized silver nanoparticle: Deep insight into microscopic kinetics analysis. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.09.004] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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35
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Morphology of Composite Fe@Au Submicron Particles, Produced with Ultrasonic Spray Pyrolysis and Potential for Synthesis of Fe@Au Core-Shell Particles. MATERIALS 2019; 12:ma12203326. [PMID: 31614767 PMCID: PMC6829231 DOI: 10.3390/ma12203326] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/07/2019] [Accepted: 10/10/2019] [Indexed: 12/23/2022]
Abstract
Iron core–gold shell (Fe@Au) nanoparticles are prominent for their magnetic and optical properties, which are especially beneficial for biomedical uses. Some experiments were carried out to produce Fe@Au particles with a one-step synthesis method, Ultrasonic Spray Pyrolysis (USP), which is able to produce the particles in a continuous process. The Fe@Au particles were produced with USP from a precursor solution with dissolved Iron (III) chloride and Gold (III) chloride, with Fe/Au concentration ratios ranging from 0.1 to 4. The resulting products are larger Fe oxide particles (mostly maghemite Fe2O3), with mean sizes of about 260–390 nm, decorated with Au nanoparticles (AuNPs) with mean sizes of around 24–67 nm. The Fe oxide core particles are mostly spherical in all of the experiments, while the AuNPs become increasingly irregular and more heavily agglomerated with lower Fe/Au concentration ratios in the precursor solution. The resulting particle morphology from these experiments is caused by surface chemistry and particle to solvent interactions during particle formation inside the USP system.
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36
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Pillarisetti S, Uthaman S, Huh KM, Koh YS, Lee S, Park IK. Multimodal Composite Iron Oxide Nanoparticles for Biomedical Applications. Tissue Eng Regen Med 2019; 16:451-465. [PMID: 31624701 PMCID: PMC6778581 DOI: 10.1007/s13770-019-00218-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 08/01/2019] [Accepted: 08/19/2019] [Indexed: 12/11/2022] Open
Abstract
Background Iron oxide nanoparticles (IONPs) are excellent candidates for biomedical imaging because of unique characteristics like enhanced colloidal stability and excellent in vivo biocompatibility. Over the last decade, material scientists have developed IONPs with better imaging and enhanced optical absorbance properties by tuning their sizes, shape, phases, and surface characterizations. Since IONPs could be detected with magnetic resonance imaging, various attempts have been made to combine other imaging modalities, thereby creating a high-resolution imaging platform. Composite IONPs (CIONPs) comprising IONP cores with polymeric or inorganic coatings have recently been documented as a promising modality for therapeutic applications. Methods In this review, we provide an overview of the recent advances in CIONPs for multimodal imaging and focus on the therapeutic applications of CIONPs. Result CIONPs with phototherapeutics, IONP-based nanoparticles are used for theranostic application via imaging guided photothermal therapy. Conclusion CIONP-based nanoparticles are known for theranostic application, longstanding effects of composite NPs in in vivo systems should also be studied. Once such issues are fixed, multifunctional CIONP-based applications can be extended for theranostics of diverse medical diseases in the future.
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Affiliation(s)
- Shameer Pillarisetti
- Department of Biomedical Science, BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, 42 Jebong-ro, Dong-gu, Gwangju, 61469 Republic of Korea
| | - Saji Uthaman
- Department of Polymer Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134 Republic of Korea
| | - Kang Moo Huh
- Department of Polymer Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134 Republic of Korea
| | - Yang Seok Koh
- Department of Surgery, Chonnam National University Hwasun Hospital and Medical School, 322 Seoyang-ro, Hwasun-eup, Hwasun-gun, Chonnam, 58128 Republic of Korea
| | - Sangjoon Lee
- Department of Chemical and Biomedical Engineering, Cleveland State University, 2121 Euclid Ave, Cleveland, OH 44115 USA
| | - In-Kyu Park
- Department of Biomedical Science, BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, 42 Jebong-ro, Dong-gu, Gwangju, 61469 Republic of Korea
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37
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Das P, Fatehbasharzad P, Colombo M, Fiandra L, Prosperi D. Multifunctional Magnetic Gold Nanomaterials for Cancer. Trends Biotechnol 2019; 37:995-1010. [PMID: 30862388 DOI: 10.1016/j.tibtech.2019.02.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 02/14/2019] [Accepted: 02/15/2019] [Indexed: 12/15/2022]
Abstract
The integration of multiple imaging and therapeutic agents into a customizable nanoplatform for accurate identification and rapid prevention of cancer is attracting great attention. Among the available theranostic nanosystems, magnetic gold nanoparticles are particularly promising as they exhibit unique physicochemical properties that can support multiple functions, including cancer diagnosis by magnetic resonance imaging, X-ray computed tomography, Raman and photoacoustic imaging, drug delivery, and plasmonic photothermal and photodynamic therapies. This review gives an overview of recent advances in the fabrication of multifunctional gold nanohybrids with magnetic and optical properties and their successful demonstration in multimodal imaging and therapy of cancer. Concerns around toxicity of these nanomaterials are also discussed in view of an imminent transition to clinical practice.
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Affiliation(s)
- Pradip Das
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy
| | - Parisa Fatehbasharzad
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy; Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università di Torino, Via Nizza 52, 10126 Torino, Italy
| | - Miriam Colombo
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy
| | - Luisa Fiandra
- Dipartimento di Scienze dell'Ambiente e della Terra, Università di Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy.
| | - Davide Prosperi
- NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy; Nanomedicine Laboratory, ICS Maugeri S.p.A. SB, via S. Maugeri 10, 27100 Pavia, Italy.
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Chiu MH, Li JH, Nagao T. Optical Properties of Au-based and Pt-based Alloys for Infrared Device Applications: A Combined First Principle and Electromagnetic Simulation Study. MICROMACHINES 2019; 10:mi10010073. [PMID: 30669542 PMCID: PMC6356491 DOI: 10.3390/mi10010073] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 01/14/2019] [Accepted: 01/15/2019] [Indexed: 11/24/2022]
Abstract
Due to the rapid progress in MEMS-based infrared emitters and sensors, strong demand exists for suitable plasmonic materials for such microdevices. We examine the possibility of achieving this goal by alloying other metals with the noble metals Au and Pt, which have some drawbacks, such as low melting point, structural instability, and high costs. The six different metals (Ir, Mo, Ni, Pb, Ta, and W) which possess good properties for heat resistance, stability, and magnetism are mixed with noble metals to improve the properties. The optical properties are calculated by density functional theory and they are used for further investigations of the optical responses of alloy nanorods. The results show that the studied alloy nanorods have wavelength selective properties and can be useful for infrared devices and systems.
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Affiliation(s)
- Min-Hsueh Chiu
- Department of Engineering Science and Ocean Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10607, Taiwan.
| | - Jia-Han Li
- Department of Engineering Science and Ocean Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10607, Taiwan.
| | - Tadaaki Nagao
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
- Department of Condensed Matter Physics Graduate School of Science, Hokkaido University, Kita-10 Nishi-8 Kita-ku, Sapporo 060-0810, Japan.
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Taniguchi K, Shinoda K, Cuya Huaman JL, Yokoyama S, Uchikoshi M, Matsumoto T, Suzuki K, Miyamura H, Jeyadevan B. Designed synthesis of highly catalytic Ni–Pt nanoparticles for fuel cell applications. SN APPLIED SCIENCES 2018. [DOI: 10.1007/s42452-018-0133-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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40
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Wang YC, Rhéaume É, Lesage F, Kakkar A. Synthetic Methodologies to Gold Nanoshells: An Overview. Molecules 2018; 23:E2851. [PMID: 30400168 PMCID: PMC6278292 DOI: 10.3390/molecules23112851] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 10/27/2018] [Accepted: 10/29/2018] [Indexed: 12/18/2022] Open
Abstract
Gold nanostructures that can be synthetically articulated to adapt diverse morphologies, offer a versatile platform and tunable properties for applications in a variety of areas, including biomedicine and diagnostics. Among several conformational architectures, gold nanoshells provide a highly advantageous combination of properties that can be fine-tuned in designing single or multi-purpose nanomaterials, especially for applications in biology. One of the important parameters for evaluating the efficacy of gold nano-architectures is their reproducible synthesis and surface functionalization with desired moieties. A variety of methods now exist that allow fabrication and chemical manipulation of their structure and resulting properties. This review article provides an overview and a discussion of synthetic methodologies to a diverse range of gold nanoshells, and a brief summary of surface functionalization and characterization methods employed to evaluate their overall composition.
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Affiliation(s)
- Yu-Chen Wang
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada.
| | - Éric Rhéaume
- Research Center, Montreal Heart Institute, 5000 Belanger Street, Montreal, QC H1T 1C8, Canada.
| | - Frédéric Lesage
- Research Center, Montreal Heart Institute, 5000 Belanger Street, Montreal, QC H1T 1C8, Canada.
- Department of Electrical Engineering Ecole Polytechnique de Montreal, C.P. 6079 succ. Centre-ville, Montreal, QC H3C 3A7, Canada.
| | - Ashok Kakkar
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada.
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41
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Preparation conditions effect on the physico-chemical properties of magnetic–plasmonic core–shell nanoparticles functionalized with chitosan: Green route. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.nanoso.2018.07.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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42
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Abstract
Iron oxide and gold-based magneto-plasmonic nanostructures exhibit remarkable optical and superparamagnetic properties originating from their two different components. As a consequence, they have improved and broadened the application potential of nanomaterials in medicine. They can be used as multifunctional nanoprobes for magneto-plasmonic heating as well as for magnetic and optical imaging. They can also be used for magnetically assisted optical biosensing, to detect extreme traces of targeted bioanalytes. This review introduces the previous work on magneto-plasmonic hetero-nanostructures including: (i) their synthesis from simple “one-step” to complex “multi-step” routes, including seed-mediated and non-seed-mediated methods; and (ii) the characterization of their multifunctional features, with a special emphasis on the relationships between their synthesis conditions, their structures and their properties. It also focuses on the most important progress made with regard to their use in nanomedicine, keeping in mind the same aim, the correlation between their morphology—namely spherical and non-spherical, core-satellite and core-shell, and the desired applications.
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43
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Imadadulla M, Nemakal M, Koodlur Sannegowda L. Solvent dependent dispersion behaviour of macrocycle stabilized cobalt nanoparticles and their applications. NEW J CHEM 2018. [DOI: 10.1039/c8nj01773e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Cobalt nanoparticles have been prepared by using amine phthalocyanine as a stabilizing agent in one step.
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Affiliation(s)
- Mohammed Imadadulla
- Department of Chemistry/Industrial Chemistry
- Vijayanagara Sri Krishnadevaraya University
- Ballari-583105
- India
| | - Manjunath Nemakal
- Department of Chemistry/Industrial Chemistry
- Vijayanagara Sri Krishnadevaraya University
- Ballari-583105
- India
| | - Lokesh Koodlur Sannegowda
- Department of Chemistry/Industrial Chemistry
- Vijayanagara Sri Krishnadevaraya University
- Ballari-583105
- India
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44
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Hu Y, Mignani S, Majoral JP, Shen M, Shi X. Construction of iron oxide nanoparticle-based hybrid platforms for tumor imaging and therapy. Chem Soc Rev 2018; 47:1874-1900. [DOI: 10.1039/c7cs00657h] [Citation(s) in RCA: 229] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review highlights the most recent progress in the construction of iron oxide nanoparticle-based hybrid platforms for tumor imaging and therapy.
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Affiliation(s)
- Yong Hu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
| | - Serge Mignani
- PRES Sorbonne Paris Cité
- CNRS UMR 860
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologique
- Université Paris Descartes
- Paris
| | | | - Mingwu Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
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45
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Abbasi Kajani A, Bordbar AK, Zarkesh-Esfahani SH, Razmjou A, Hou J. Gold/silver decorated magnetic nanostructures as theranostic agents: Synthesis, characterization and in-vitro study. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.09.119] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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46
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Ghanbari N, Hoseini SJ, Bahrami M. Ultrasonic assisted synthesis of palladium-nickel/iron oxide core-shell nanoalloys as effective catalyst for Suzuki-Miyaura and p-nitrophenol reduction reactions. ULTRASONICS SONOCHEMISTRY 2017; 39:467-477. [PMID: 28732970 DOI: 10.1016/j.ultsonch.2017.05.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 05/09/2017] [Accepted: 05/10/2017] [Indexed: 06/07/2023]
Abstract
In this study, ultrasonic assisted synthesis of Pd-Ni/Fe3O4 core-shell nanoalloys is reported. Unique reaction condition was prepared by ultrasonic irradiation, releasing the stored energy in the collapsed bubbles and heats the bubble contents that leads to Pd(II) and Ni(II) reduction. Co-precipitation method was applied for the synthesis of Fe3O4 nanoparticles (NPs). Immobilized solution was produced by sonicating the aqueous mixture of Fe3O4 and mercaptosuccinic acid to obtain Pd-Ni alloys on Fe3O4 magnetic NP cores. The catalytic activity of the synthesized Pd-Ni/Fe3O4 core-shells was investigated in the Suzuki-Miyaura CC coupling reaction and 4-nitrophenol reduction, which exhibited a high catalytic activity in both reactions. These magnetic NPs can be separated from the reaction mixture by external magnetic field. This strategy is simple, economical and promising for industrial applications.
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Affiliation(s)
- Najmeh Ghanbari
- Department of Chemistry, Faculty of Sciences, Yasouj University, Yasouj 7591874831, Iran
| | - S Jafar Hoseini
- Department of Chemistry, Faculty of Sciences, Yasouj University, Yasouj 7591874831, Iran.
| | - Mehrangiz Bahrami
- Department of Chemistry, Faculty of Sciences, Yasouj University, Yasouj 7591874831, Iran
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Ahmad A, Wei Y, Ullah S, Shah SI, Nasir F, Shah A, Iqbal Z, Tahir K, Khan UA, Yuan Q. Synthesis of phytochemicals-stabilized gold nanoparticles and their biological activities against bacteria and Leishmania. Microb Pathog 2017; 110:304-312. [PMID: 28705747 DOI: 10.1016/j.micpath.2017.07.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 05/31/2017] [Accepted: 07/10/2017] [Indexed: 12/11/2022]
Abstract
Nanoscale materials have shown promising results in the field of medicine as therapeutic agents and drugs delivery vehicles. In the current study, gold nanoparticles (AuNPs) were prepared by a green and facile method using the aqueous extract of Rhazya stricta decne as a source of reducing and stabilizing agents. The bio-fabricated AuNPs were characterized by UV-visible spectroscopy, X-ray diffraction (XRD), Transmission electron microscopy (TEM) and FTIR spectroscopy. Antimicrobial activities of the biosynthesized AuNPs were tested against Leishmania tropica (HTD7), E. coli and S. aureus. AuNPs were the most effective agents in inhibiting the growth of intra-THP-1 amastigotes at 100 μg/mL concentration (IC50 = 43 μg/mL) after 48-h incubation. In addition, the prepared AuNPs also displayed good activity against E. coli (MIC = 25.0 μg/mL) and Bacillus subtilis (50.0 μg/mL). Interestingly, biogenic AuNPs did not exhibit cytotoxic effect against the THP-1 cells after 24 h exposure. The findings of this study conclude that phytochemicals-stabilized AuNPs could be a safe and effective source of antimicrobial agents.
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Affiliation(s)
- Aftab Ahmad
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No. 15 East Road of North Third Ring, Chao Yang District, Beijing 100029, China.
| | - Yun Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No. 15 East Road of North Third Ring, Chao Yang District, Beijing 100029, China
| | - Sadeeq Ullah
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No. 15 East Road of North Third Ring, Chao Yang District, Beijing 100029, China
| | | | - Fazli Nasir
- Department of Pharmacy, University of Peshawar, 25120 Peshawar, Pakistan
| | - Akram Shah
- Department of Zoology, University of Peshawar, 25120 Peshawar, Pakistan
| | - Zafar Iqbal
- Department of Pharmacy, University of Peshawar, 25120 Peshawar, Pakistan
| | - Kamran Tahir
- Institute of Chemical Sciences, Gomal University, D.I. Khan, Pakistan
| | - Usman Ali Khan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No. 15 East Road of North Third Ring, Chao Yang District, Beijing 100029, China
| | - Qipeng Yuan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No. 15 East Road of North Third Ring, Chao Yang District, Beijing 100029, China.
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48
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Orza A, Wu H, Xu Y, Lu Q, Mao H. One-Step Facile Synthesis of Highly Magnetic and Surface Functionalized Iron Oxide Nanorods for Biomarker-Targeted Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:20719-20727. [PMID: 28513139 PMCID: PMC8898331 DOI: 10.1021/acsami.7b02575] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report a one-step method for facile and sustainable synthesis of magnetic iron oxide nanorods (or IONRs) with mean lengths ranging from 25 to 50 nm and mean diameters ranging from 5 to 8 nm. The prepared IONRs are highly stable in aqueous media and can be surface functionalized for biomarker-targeted applications. This synthetic strategy involves the reaction of iron(III) acetylacetonate with polyethyleneimine in the presence of oleylamine and phenyl ether, followed by thermal decomposition. Importantly, the length and diameter as well as the aspect ratio of the prepared IONRs can be controlled by modulating the reaction parameters. We show that the resultant IONRs exhibit stronger magnetic properties compared to those of the widely used spherical iron oxide nanoparticles (IONPs) at the same iron content. The increased magnetic properties are dependent on the aspect ratio, with the magnetic saturation gradually increasing from 10 to 75 emu g-1 when increasing length of the IONRs, 5 nm in diameter, from 25 to 50 nm. The magnetic resonance imaging (MRI) contrast-enhancing effect, as measured in terms of the transverse relaxivity, r2, increased from 670.6 to 905.5 mM-1 s-1, when increasing the length from 25 to 50 nm. When applied to the immunomagnetic cell separation of the transferrin receptor (TfR)-overexpressed medulloblastoma cells using transferrin (Tf) as the targeting ligand, Tf-conjugated IONRs can capture 92 ± 3% of the targeted cells under a given condition (2.0 × 104 cells/mL, 0.2 mg Fe/mL concentration of magnetic materials, and 2.5 min of incubation time) compared to only 37 ± 2% when using the spherical IONPs, and 14 ± 2% when using commercially available magnetic beads, significantly improving the efficiency of separating the targeted cells.
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Affiliation(s)
- Anamaria Orza
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30329, United States
- Center for Systems Imaging, Emory University School of Medicine, Atlanta, Georgia 30329, United States
| | - Hui Wu
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30329, United States
- Center for Systems Imaging, Emory University School of Medicine, Atlanta, Georgia 30329, United States
| | - Yaolin Xu
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30329, United States
- Center for Systems Imaging, Emory University School of Medicine, Atlanta, Georgia 30329, United States
| | - Qiong Lu
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30329, United States
- Department of Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P. R. China
| | - Hui Mao
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30329, United States
- Center for Systems Imaging, Emory University School of Medicine, Atlanta, Georgia 30329, United States
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Vanhecke D, Rodríguez-Lorenzo L, Kinnear C, Durantie E, Rothen-Rutishauser B, Petri-Fink A. Assumption-free morphological quantification of single anisotropic nanoparticles and aggregates. NANOSCALE 2017; 9:4918-4927. [PMID: 28358404 DOI: 10.1039/c6nr07884b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Characterizing the morphometric parameters of noble metal nanoparticles for sensing and catalysis is a persistent challenge due to their small size and complex shape. Herein, we present an approach to determine the volume, surface area, and curvature of non-symmetric anisotropic nanoparticles using electron tomography and design-based stereology without the use of segmentation tools or modeling of the particles. Finally, we apply these tools to aggregates to estimate their fractal dimension.
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Affiliation(s)
- Dimitri Vanhecke
- University of Fribourg, Adolphe Merkle Institute, Ch. des Verdiers 4, Fribourg, Switzerland.
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Kwizera EA, Chaffin E, Wang Y, Huang X. Synthesis and Properties of Magnetic-Optical Core-Shell Nanoparticles. RSC Adv 2017; 7:17137-17153. [PMID: 28603606 PMCID: PMC5460537 DOI: 10.1039/c7ra01224a] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Due to their high integrity, facile surface chemistry, excellent stability, and dual properties from the core and shell materials, magnetic-plasmonic core-shell nanoparticles are of great interest across a number of science, engineering and biomedical disciplines. They are promising for applications in a broad range of areas including catalysis, energy conversion, biological separation, medical imaging, disease detection and treatment. The technological applications have driven the need for high quality nanoparticles with well controlled magnetic and optical properties. Tremendous progress has been made during past few decades in synthesizing and characterizing magnetic-plasmonic core-shell nanoparticles, mainly iron oxide-gold core-shell nanoparticles. This review introduces various approaches for the synthesis of spherical and anisotropic magnetic-plasmonic core-shell nanoparticles focusing on iron oxide-gold core-shell nanoparticles. Growth mechanisms are discussed to provide understanding of the key factors controlling shape-controlled synthesis. Magnetic and optical properties are summarized from both computational and experimental studies.
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Affiliation(s)
| | - Elise Chaffin
- Department of Chemistry, The University of Memphis, Memphis, TN 38152
| | - Yongmei Wang
- Department of Chemistry, The University of Memphis, Memphis, TN 38152
| | - Xiaohua Huang
- Department of Chemistry, The University of Memphis, Memphis, TN 38152
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