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Li H, Wang T, Han J, Xu Y, Kang X, Li X, Zhu M. Fluorescence resonance energy transfer in atomically precise metal nanoclusters by cocrystallization-induced spatial confinement. Nat Commun 2024; 15:5351. [PMID: 38914548 PMCID: PMC11196639 DOI: 10.1038/s41467-024-49735-7] [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: 09/23/2023] [Accepted: 06/17/2024] [Indexed: 06/26/2024] Open
Abstract
Understanding the fluorescence resonance energy transfer (FRET) of metal nanoparticles at the atomic level has long been a challenge due to the lack of accurate systems with definite distance and orientation of molecules. Here we present the realization of achieving FRET between two atomically precise copper nanoclusters through cocrystallization-induced spatial confinement. In this study, we demonstrate the establishment of FRET in a cocrystallized Cu8(p-MBT)8(PPh3)4@Cu10(p-MBT)10(PPh3)4 system by exploiting the overlapping spectra between the excitation of the Cu10(p-MBT)10(PPh3)4 cluster and the emission of the Cu8(p-MBT)8(PPh3)4 cluster, combined with accurate control over the confined space between the two nanoclusters. Density functional theory is employed to provide deeper insights into the role of the distance and dipole orientations of molecules to illustrate the FRET procedure between two cluster molecules at the electronic structure level.
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Affiliation(s)
- Hao Li
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui University, 230601, Hefei, China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, 230601, Hefei, China
- Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province, Anhui University, 230601, Hefei, China
- School of Materials and Chemical Engineering, Anhui Jianzhu University, 230601, Hefei, China
| | - Tian Wang
- Department of Chemistry, University of Washington, Seattle, WA, 98195-1653, USA
| | - Jiaojiao Han
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui University, 230601, Hefei, China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, 230601, Hefei, China
- Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province, Anhui University, 230601, Hefei, China
| | - Ying Xu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui University, 230601, Hefei, China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, 230601, Hefei, China
- Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province, Anhui University, 230601, Hefei, China
| | - Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui University, 230601, Hefei, China.
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, 230601, Hefei, China.
- Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province, Anhui University, 230601, Hefei, China.
| | - Xiaosong Li
- Department of Chemistry, University of Washington, Seattle, WA, 98195-1653, USA.
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui University, 230601, Hefei, China.
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, 230601, Hefei, China.
- Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province, Anhui University, 230601, Hefei, China.
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Sahraei A, Shamsoddini MJ, Mohammadi F, Hassani L. Interaction of gallium, indium, and vanadyl curcumin complexes with hen egg-white lysozyme (HEWL): Mechanistic aspects and evaluation of antiamyloidogenic activity. Biochem Biophys Res Commun 2024; 691:149307. [PMID: 38011821 DOI: 10.1016/j.bbrc.2023.149307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/15/2023] [Accepted: 11/20/2023] [Indexed: 11/29/2023]
Abstract
Many proteins and peptides can aggregate into amyloid fibrils with high-ordered and cross-β rich structure characteristics. Amyloid deposition is a common feature of neurodegenerative diseases called amyloidosis. Various natural polyphenolic compounds such as curcumin exhibited antiamyloidogenic activities, but less researches were focused on the metal complexes of these compounds. In this study, the inhibitory effects of gallium curcumin (Ga(cur)3), indium curcumin (In(cur)3), and vanadyl curcumin (VO(cur)2) on the amyloid fibrillation of hen egg white lysozyme (HEWL) have been investigated. Moreover, the details of binding interactions of these metal complexes with HEWL have been explored. The results of fluorescence quenching analyses revealed that In(cur)3 and VO(cur)2 have much higher binding affinities than Ga(cur)3 toward HEWL. The interactions of these metal complexes were accompanied by partial conformational changes in the tertiary structure of HEWL. The kinetic curves of the fibrillation process demonstrated that In(cur)3 and VO(cur)2 have higher inhibitory effects than Ga(cur)3 on the amyloid fibrillation of HEWL. The strength of binding to HEWL is completely in accordance with inhibitory activities of these metal complexes of curcumin.
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Affiliation(s)
- Amin Sahraei
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Blvd., Gava Zang, Zanjan, 45137-66731, Iran
| | - Mohammad Javad Shamsoddini
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Blvd., Gava Zang, Zanjan, 45137-66731, Iran
| | - Fakhrossadat Mohammadi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Blvd., Gava Zang, Zanjan, 45137-66731, Iran.
| | - Leila Hassani
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Blvd., Gava Zang, Zanjan, 45137-66731, Iran
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3
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Palacios LRG, Martinez SM, Tettamanti CS, Inda A, Quinteros DA, Bracamonte AG. Bi-coloured enhanced luminescence imaging by targeted switch on/off laser MEF coupling for synthetic biosensing of nanostructured human serum albumin. Photochem Photobiol Sci 2023; 22:2735-2758. [PMID: 37787958 DOI: 10.1007/s43630-023-00483-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 09/11/2023] [Indexed: 10/04/2023]
Abstract
In this communication luminescent bioconjugated human serum albumin nanostructures (HSA NPs) with tiny ultraluminescent gold core-shell silica nanoparticles (Au@SiO2-Fl) were designed with enhanced bi-coloured luminescence properties. The HSA NPs were obtained from Human Serum Albumin free (HSA free) through the desolvation method, and Au@SiO2-Fl, through modified Turkevich and Störber methods. In this manner, porous HSA Nanostructures of 150.0-200 nm and Au@SiO2-Fl 45.0 nm final diameters were obtained. Both methodologies and structures were conjugated to obtain modified Nanocomposites based on tiny gold cores of 15 nm surrounded with well spatial Nanostructured architectures of HSA (d15 Au@SiO2-Fl-HSA) that generated variable nanopatterns depending on the modified methodology of synthesis applied within colloidal dispersions. Therefore, three methodologies of non-covalent conjugation were developed. In optimal conditions, through Transmission Electronic Microscopy (TEM), well resolved multilayered nano-architectures with a size 190.0-200 nm in average with variable contrast depending of the focused nanomaterial within the nanocomposite were shown. Optimized nanoarchitecture was based on a template tiny gold core-shell surrounded by nanostructured HSA NPs (d15 Au@SiO2-Fl-HSA). In this manner, the NanoImaging generated by laser fluorescence microscopy permitted to record improved optical properties and functionalities, such as: (i) enhanced ultraluminescent d15 Au@SiO2-Fl-HSA composites in comparison to individual components based on Metal Enhanced Fluorescence (MEF); (ii) diminished photobleaching; (iii) higher dispersibility; (iv) higher resolution of single bright nano-emitters of 210.0 nm sizes; and (v) enhanced bi-coloured Bio-MEF coupling with potential non-classical light delivery towards other non-optical active biostructures for varied applications. The characterization of these nanocomposites allowed the comparison, evaluation and discussion focused on new properties generated and functionalities based on the incorporation of different types of tuneable materials. In this context, the biocompatibility, Cargo confined spaces, protein-based materials, optical transparent could be highlighted, as well as optical active materials. Thus, the potential applications of nanotechnology to both nanomedicine and nano-pharmaceutics were discussed.
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Affiliation(s)
- Luna R Gomez Palacios
- Instituto de Investigaciones en Físicoquímica de Córdoba (INFIQC), Centro Laser del INFIQC, y Departamento de Química Orgánica del INFIQC, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba (National University of Cordoba, Argentine), Ciudad Universitaria, 5000, Córdoba, Argentina
| | - Sofia Mickaela Martinez
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina
| | - Cecilia S Tettamanti
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina
| | - Ayelén Inda
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina
| | - Daniela Alejandra Quinteros
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina
| | - A Guillermo Bracamonte
- Instituto de Investigaciones en Físicoquímica de Córdoba (INFIQC), Centro Laser del INFIQC, y Departamento de Química Orgánica del INFIQC, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba (National University of Cordoba, Argentine), Ciudad Universitaria, 5000, Córdoba, Argentina.
- Departement de Chimie et Centre d'optique, Photonique et Laser (COPL), UniversitéLaval (Laval University), Québec, QC, G1V 0A6, Canada.
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4
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He Z, Li F, Zuo P, Tian H. Principles and Applications of Resonance Energy Transfer Involving Noble Metallic Nanoparticles. MATERIALS (BASEL, SWITZERLAND) 2023; 16:3083. [PMID: 37109920 PMCID: PMC10145016 DOI: 10.3390/ma16083083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/01/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
Over the past several years, resonance energy transfer involving noble metallic nanoparticles has received considerable attention. The aim of this review is to cover advances in resonance energy transfer, widely exploited in biological structures and dynamics. Due to the presence of surface plasmons, strong surface plasmon resonance absorption and local electric field enhancement are generated near noble metallic nanoparticles, and the resulting energy transfer shows potential applications in microlasers, quantum information storage devices and micro-/nanoprocessing. In this review, we present the basic principle of the characteristics of noble metallic nanoparticles, as well as the representative progress in resonance energy transfer involving noble metallic nanoparticles, such as fluorescence resonance energy transfer, nanometal surface energy transfer, plasmon-induced resonance energy transfer, metal-enhanced fluorescence, surface-enhanced Raman scattering and cascade energy transfer. We end this review with an outlook on the development and applications of the transfer process. This will offer theoretical guidance for further optical methods in distance distribution analysis and microscopic detection.
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Affiliation(s)
- Zhicong He
- School of Mechanical and Electrical Engineering, Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan 430073, China
- School of Mechanical and Electrical Engineering, Hubei Polytechnic University, Huangshi 435003, China
- Hubei Key Laboratory of Intelligent Transportation Technology and Device, Hubei Polytechnic University, Huangshi 435003, China
| | - Fang Li
- School of Mechanical and Electrical Engineering, Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan 430073, China
| | - Pei Zuo
- School of Mechanical and Electrical Engineering, Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan 430073, China
| | - Hong Tian
- School of Mechanical and Electrical Engineering, Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan 430073, China
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5
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Mehta N, Mahigir A, Veronis G, Gartia MR. Hyperspectral dark field optical microscopy for orientational imaging of a single plasmonic nanocube using a physics-based learning method. NANOSCALE ADVANCES 2022; 4:4094-4101. [PMID: 36285219 PMCID: PMC9514559 DOI: 10.1039/d2na00469k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 08/23/2022] [Indexed: 06/16/2023]
Abstract
Rotational dynamics at the molecular level could provide additional data regarding protein diffusion and cytoskeleton formation at the cellular level. Due to the isotropic emission pattern of fluorescence molecules, it is challenging to extract rotational information from them during imaging. Metal nanoparticles show a polarization-dependent response and could be used for sensing rotational motion. Nanoparticles as an orientation sensing probe offer bio-compatibility and robustness against photo-blinking and photo-bleaching compared to conventional fluorescent molecules. Previously, asymmetric geometrical structures such as nanorods have been used for orientational imaging. Here, we show orientational imaging of symmetric geometrical structures such as 100 nm isolated silver nanocubes by coupling a hyperspectral detector and a focused ion beam (FIB)-fabricated correlating substrate. More than 100 nanocubes are analyzed to confirm spectral shifts in the scattering spectra due to variations in the orientation of the nanocubes with respect to the incoming light. Results are further validated using finite-difference time-domain simulations. Our observations suggest a novel strategy for high-throughput orientation imaging of nanoparticles.
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Affiliation(s)
- Nishir Mehta
- Department of Mechanical and Industrial Engineering, School of Electrical Engineering and Computer Science, Louisiana State University Baton Rouge Louisiana 70803 USA +1-225-578-5900
| | - Amirreza Mahigir
- School of Electrical Engineering and Computer Science, Louisiana State University Baton Rouge Louisiana 70803 USA
- Center for Computation and Technology, Louisiana State University Baton Rouge Louisiana 70803 USA
| | - Georgios Veronis
- School of Electrical Engineering and Computer Science, Louisiana State University Baton Rouge Louisiana 70803 USA
- Center for Computation and Technology, Louisiana State University Baton Rouge Louisiana 70803 USA
| | - Manas Ranjan Gartia
- Department of Mechanical and Industrial Engineering, School of Electrical Engineering and Computer Science, Louisiana State University Baton Rouge Louisiana 70803 USA +1-225-578-5900
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6
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Picard-Lafond A, Larivière D, Boudreau D. Metal-Enhanced Hg 2+-Responsive Fluorescent Nanoprobes: From Morphological Design to Application to Natural Waters. ACS OMEGA 2022; 7:22944-22955. [PMID: 35811854 PMCID: PMC9260771 DOI: 10.1021/acsomega.2c02985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
Metal-enhanced fluorescence (MEF) is a powerful tool in the design of sensitive chemical sensors by improving brightness and photostability of target-responsive fluorophores. Compounding these advantages with the modest hardware requirements of fluorescence sensing compared to that of centralized elemental analysis instruments, thus expanding the use of MEF to the detection of low-level inorganic pollutants, is a compelling aspiration. Among the latter, monitoring mercury in the environment, where some of its species disseminate through the food chain and, in time, to humans, has elicited a broad research effort toward the development of Hg2+-responsive fluorescent sensors. Herein, a Hg2+-sensitive MEF-enabled probe was conceived by grafting a Hg2+-responsive fluorescein derivative to concentric Ag@SiO2 NPs, where the metallic core enhances fluorescence emission of molecular probes embedded in a surrounding silica shell. Time-resolved fluorescence measurements showed that the fluorophore's excited-state lifetime decreases from 3.9 ns in a solid, coreless silica sphere to 0.4 ns in the core-shell nanoprobe, granting the dye a better resistance to photobleaching. The Ag-core system showed a sizable improvement in the limit of detection at 2 nM (0.4 ppb) compared to 50 nM (10 ppb) in silica-only colloids, and its effectiveness for natural water analysis was demonstrated. Overall, the reported nanoarchitecture hints at the potential of MEF for heavy metal detection by fluorescence detection.
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Affiliation(s)
- Audrey Picard-Lafond
- Département
de chimie and Centre d’optique, photonique et laser
(COPL), Université Laval, Québec, QC G1V 0A6, Canada
| | - Dominic Larivière
- Département
de chimie and Centre d’optique, photonique et laser
(COPL), Université Laval, Québec, QC G1V 0A6, Canada
| | - Denis Boudreau
- Département
de chimie and Centre d’optique, photonique et laser
(COPL), Université Laval, Québec, QC G1V 0A6, Canada
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7
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Microarrays towards nanoarrays and the future Next Generation of Sequencing methodologies (NGS). SENSING AND BIO-SENSING RESEARCH 2022. [DOI: 10.1016/j.sbsr.2022.100503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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8
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Tailoring Resonant Energy Transfer Processes for Sustainable and Bio-Inspired Sensing. SUSTAINABILITY 2022. [DOI: 10.3390/su14095337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Dipole–Dipole interactions (DDI) constitute an effective mechanism by which two physical entities can interact with each other. DDI processes can occur in a resonance framework if the energies of the two dipoles are very close. In this case, an energy transfer can occur without the need to emit a photon, taking the name of Förster Resonance Energy Transfer (FRET). Given their large dependence on the distance and orientation between the two dipoles, as well as on the electromagnetic properties of the surrounding environment, DDIs are exceptional for sensing applications. There are two main ways to carry out FRET-based sensing: (i) enhancing or (ii) inhibiting it. Interaction with resonant environments such as plasmonic, optical cavities, and/or metamaterials promotes the former while acting on the distance between the FRET molecules favors the latter. In this review, we browse both the two ways, pointing the spotlight to the intrinsic interdisciplinarity these two sensing routes imply. We showcase FRET-based sensing mechanisms in a variety of contexts, from pH sensors to molecular structure measurements on a nano-metrical scale, with a particular accent on the central and still mostly overlooked role played between a nano-photonically structured environment and photoluminescent molecules.
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Gomez Palacios LR, Bracamonte AG. Development of nano- and microdevices for the next generation of biotechnology, wearables and miniaturized instrumentation. RSC Adv 2022; 12:12806-12822. [PMID: 35496334 PMCID: PMC9047444 DOI: 10.1039/d2ra02008d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 04/15/2022] [Indexed: 12/27/2022] Open
Abstract
This is a short communication based on recent high-impact publications related to how various chemical materials and substrate modifications could be tuned for nano- and microdevices, where their application for high point-of-care bioanalysis and further applications in life science is discussed. Hence, they have allowed different high-impact research topics in a variety of fields, from the control of nanoscale to functional microarchitectures embedded in various support materials to obtain a device for a given application or use. Thus, their incorporation in standard instrumentation is shown, as well as in new optical setups to record different classical and non-classical light, signaling, and energy modes at a variety of wavelengths and energy levels. Moreover, the development of miniaturized instrumentation was also contemplated. In order to develop these different levels of technology, the chemistry, physics and engineering of materials were discussed. In this manner, a number of subjects that allowed the design and manufacture of devices could be found. The following could be mentioned by way of example: (i) nanophotonics; (ii) design, synthesis and tuning of advanced nanomaterials; (iii) classical and non-classical light generation within the near field; (iv) microfluidics and nanofluidics; (v) signal waveguiding; (vi) quantum-, nano- and microcircuits; (vii) materials for nano- and microplatforms, and support substrates and their respective modifications for targeted functionalities. Moreover, nano-optics in in-flow devices and chips for biosensing were discussed, and perspectives on biosensing and single molecule detection (SMD) applications. In this perspective, new insights about precision nanomedicine based on genomics and drug delivery systems were obtained, incorporating new advanced diagnosis methods based on lab-on-particles, labs-on-a-chip, gene therapies, implantable devices, portable miniaturized instrumentation, single molecule detection for biophotonics, and neurophotonics. In this manner, this communication intends to highlight recent reports and developments of nano- and microdevices and further approaches towards the incorporation of developments in nanophotonics and biophotonics in the design of new materials based on different strategies and enhanced techniques and methods. Recent proofs of concept are discussed that could allow new substrates for device manufacturing. Thus, physical phenomena and materials chemistry with accurate control within the nanoscale were introduced into the discussion. In this manner, new potential sources of ideas and strategies for the next generation of technology in many research and development fields are showcased. This is a short communication based on recent high-impact publications related to how various chemical materials and substrate modifications could be tuned for nano- and microdevices, where their application for high point-of-care bioanalysis and further applications in life science is discussed.![]()
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Affiliation(s)
- Luna R Gomez Palacios
- Instituto de Investigaciones en Físico Química de Córdoba (INFIQC), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba (UNC) Ciudad Universitaria 5000 Córdoba Argentina
| | - A Guillermo Bracamonte
- Instituto de Investigaciones en Físico Química de Córdoba (INFIQC), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba (UNC) Ciudad Universitaria 5000 Córdoba Argentina .,Department of Chemistry, University of Victoria (UVic) Vancouver Island V8W 2Y2 British Columbia (BC) Canada.,Département de chimie and Centre d'optique, photonique et laser (COPL), Université Laval Québec (QC) G1V 0A6 Canada
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10
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Surface enhanced electrochemiluminescence of the Ru(bpy)32+/tripropylamine system by Au@SiO2 nanoparticles for highly sensitive and selective detection of dopamine. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107224] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Suarasan S, Tira C, Rusu MM, Craciun AM, Focsan M. Controlled fluorescence manipulation by core-shell multilayer of spherical gold nanoparticles: Theoretical and experimental evaluation. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Yang SZ, Liu QA, Liu YL, Weng GJ, Zhu J, Li JJ. Recent progress in the optical detection of pathogenic bacteria based on noble metal nanoparticles. Mikrochim Acta 2021; 188:258. [PMID: 34268648 DOI: 10.1007/s00604-021-04885-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 06/02/2021] [Indexed: 12/14/2022]
Abstract
Pathogenic bacteria have become a huge threat to social health and economy for their frighteningly infectious and lethal capacity. It is quite important to make a diagnosis in advance to prevent infection or allow a rapid treatment after infection. Noble metal nanoparticles, due to their unique physicochemical properties, especially optical properties, have drawn a great attention during the past decades and have been widely applied into all kinds of fields related to human health. By utilizing these noble metal nanoparticles, optical diagnosis platforms towards pathogenic bacteria have emerged continually, providing highly sensitive, selective, and particularly facile detection tools for clinic or point-of-care diagnosis. This review summarizes the recent development in this field. It begins with a brief introduction of pathogenic bacteria and noble metal nanoparticles. And then, optical detection methods are systematically discussed in three distinct aspects. In addition to these proof-of-concept methods, corresponding algorithms and point-of-care detection devices are also described. Finally, the review ends up with subjective views on present limitations and some appropriate advice for future research directions.
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Affiliation(s)
- Shou-Zhi Yang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Qi-Ao Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Yan-Ling Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Guo-Jun Weng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China.,Research Institute of Xi'an Jiaotong University, Floor 5, Block A, Jiangning Mansion, No. 328, Wenming Road, Xiaoshan District, Hangzhou, Zhejiang Province, People's Republic of China
| | - Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China. .,Research Institute of Xi'an Jiaotong University, Floor 5, Block A, Jiangning Mansion, No. 328, Wenming Road, Xiaoshan District, Hangzhou, Zhejiang Province, People's Republic of China.
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13
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Yang L, Zheng J, Xu J, Zhang B, Zhang M. A facile template method to fabricate one-dimensional Fe 3O 4@SiO 2@C/Ni microtubes with efficient catalytic and adsorption performance. CrystEngComm 2021. [DOI: 10.1039/d1ce01104a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The Fe3O4@SiO2@C/Ni microtubes were well constructed with MoO3 microrods as sacrificing template, which manifested excellent performance as both catalyst and adsorbent.
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Affiliation(s)
- Liting Yang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Jing Zheng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Jingli Xu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Baishun Zhang
- Anhui Institute of Public Security Education, 559 Wangjiang West Road, Hefei, Anhui 230088, PR China
| | - Min Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
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14
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Wu M, Wu W, Duan Y, Liu X, Wang M, Phan CU, Qi G, Tang G, Liu B. HClO-Activated Fluorescence and Photosensitization from an AIE Nanoprobe for Image-Guided Bacterial Ablation in Phagocytes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2005222. [PMID: 33079417 DOI: 10.1002/adma.202005222] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/06/2020] [Indexed: 06/11/2023]
Abstract
Bacteria hiding in host phagocytes are difficult to kill, which can cause phagocyte disorders resulting in local and systemic tissue damage. Effective accumulation of activatable photosensitizers (PSs) in phagocytes to realize selective imaging and on-demand photodynamic ablation of bacteria is of great scientific and practical interests for precise bacteria diagnosis and treatment. Herein, HClO-activatable theranostic nanoprobes, DTF-FFP NPs, for image-guided bacterial ablation in phagocytes are introduced. DTF-FFP NPs are prepared by nanoprecipitation of an HClO-responsive near-infrared molecule FFP and an efficient PS DTF with aggregation-induced emission characteristic using an amphiphilic polymer Pluronic F127 as the encapsulation matrix. As an energy acceptor, FFP can quench both fluorescence and production of reactive oxygen species (ROS) of DTF, thus eliminating the phototoxicity of DTF-FFP NPs in normal cells and tissues. Once delivered to the infection sites, DTF-FFP NPs light up with red fluorescence and efficiently generate ROS owing to the degradation of FFP by the stimulated release of HClO in phagocytes. The selective activation of fluorescence and photosensitization is successfully confirmed by both in vitro and in vivo results, demonstrating the effectiveness and theranostic potential of DTF-FFP NPs in precise bacterial therapy.
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Affiliation(s)
- Min Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Wenbo Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Yukun Duan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Xingang Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Meng Wang
- Department of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, P. R. China
| | - Chi Uyen Phan
- Department of Chemistry, Zhejiang University, Hangzhou, 310028, P. R. China
| | - Guobin Qi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Guping Tang
- Department of Chemistry, Zhejiang University, Hangzhou, 310028, P. R. China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, P. R. China
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15
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Zhao CQ, Zhou J, Wu KW, Ding SN, Xu JJ, Chen HY. Plasmonic Enhanced Gold Nanoclusters-Based Photoelectrochemical Biosensor for Sensitive Alkaline Phosphatase Activity Analysis. Anal Chem 2020; 92:6886-6892. [PMID: 32316723 DOI: 10.1021/acs.analchem.9b05432] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Low-toxicity gold nanoclusters-decorated Ag@SiO2 (Au NCs-Ag@SiO2) nanocomposites modified plasmonic photoelectrodes were first fabricated to improve the photoelectric properties of Au NCs and practical application in biological detection. Through adjusting distance between Au NCs and plasmonic silver nanoparticles (Ag NPs), the photocurrent intensity of Au NCs enhanced by 3.8 times attributed to strong competition between enhancement functions of hot electron transfer, local electric field, light scattering effects, and quenching functions of nonradiative energy transfer. Further comparison between experimental results and theoretical simulations were conducted to gain a deeper understanding toward the photoelectric enhancement mechanism. Moreover, Au NCs-Ag@SiO2 nanocomposites was successfully applied to the construction of photoelectrochemical (PEC) biosensors for sensitively detecting alkaline phosphatase activity. This proposed PEC biosensor showed a wide linear range from 0.04 to 400 U·L-1, and a low detection limit of 0.022 U·L-1.
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Affiliation(s)
- Chun-Qin Zhao
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Jing Zhou
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Kai-Wen Wu
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Shou-Nian Ding
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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16
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Gold Nanoparticles Mediate Improved Detection of β-amyloid Aggregates by Fluorescence. NANOMATERIALS 2020; 10:nano10040690. [PMID: 32268543 PMCID: PMC7221977 DOI: 10.3390/nano10040690] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 03/28/2020] [Accepted: 03/29/2020] [Indexed: 12/16/2022]
Abstract
The early detection of the amyloid beta peptide aggregates involved in Alzheimer’s disease is crucial to test new potential treatments. In this research, we improved the detection of amyloid beta peptide aggregates in vitro and ex vivo by fluorescence combining the use of CRANAD-2 and gold nanorods (GNRs) by the surface enhancement fluorescence effect. We synthetized GNRs and modified their surface with HS-PEG-OMe and HS-PEG-COOH and functionalized them with the D1 peptide, which has the capability to selectively bind to amyloid beta peptide. For an in vitro detection of amyloid beta peptide, we co-incubated amyloid beta peptide aggregates with the probe CRANAD-2 and GNR-PEG-D1 observing an increase in the intensity of the fluorescence signal attributed to surface enhancement fluorescence. Furthermore, the surface enhancement fluorescence effect was observed in brain slices of transgenic mice with Alzheimer´s disease co-incubated with CRANAD-2 and GNR-PEG-D1. An increase in the fluorescence signal was observed allowing the detection of aggregates that cannot be detected with the single use of CRANAD-2. Gold nanoparticles allowed an improvement in the detection of the amyloid aggregated by fluorescence in vitro and ex vivo.
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17
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Abeywickrama C, Premaratne M, Gunapala SD, Andrews DL. Impact of a charged neighboring particle on Förster resonance energy transfer (FRET). JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:095305. [PMID: 31722329 DOI: 10.1088/1361-648x/ab577a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Förster resonance energy transfer (FRET) is an important physical phenomenon which demands precise control over the FRET rate for its wide range of applications. Hence, enhancing the FRET rate using different techniques has been extensively studied in the literature. Research indicates that introducing additional particles to a system consisting of a donor-acceptor pair can change the behaviour of FRET in the system. One such technique is to utilize the collective oscillations of the surface electrons of a neighboring electrically-neutral metal nanoparticle (MNP). However, the perceived changes on the FRET rate between the donor and the acceptor, when the MNP carries excess electrical charges are yet unknown. In this paper, we study these changes by introducing a charged MNP, in the proximity of an excited donor and a ground state acceptor. We deploy the classical Green's tensor to express the FRET rate in the system. We consider an effective dielectric response for the MNP, which accounts for the extraneous surface charge effects. We analyze the electrical potential at the acceptor position due to the changed dipole moment of the donor molecule as a result of the electric field induced at the donor position, and obtain the FRET rate of the system. This model considers arbitrary locations and orientations of the two molecular dipole moments with regard to the position of the spherical MNP. We present the enhancement of the FRET rate, predominantly caused by both the surface plasmon excitations and the extraneous surface electrical charges carried by the neighboring MNP. We obtain the results by varying the separation distance between the molecules and the MNP, the transition frequency of the donor-acceptor pair and the size of the metallic sphere. Specifically, we demonstrate that a donor-acceptor pair placed in the vicinity of an electrically-charged Silver MNP exhibits a remarkable improvement in the FRET rate. Furthermore, the aggregate FRET enhancement is determined by other characteristics such as the location of the donor, transition frequency, separation distances and the radius of the MNP. In essence, these findings reveal an approach to realize the enhanced FRET rate in a larger span in a more controlled manner that is desirable in many FRET-based applications including spectroscopic measurements.
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Affiliation(s)
- Champi Abeywickrama
- Advanced Computing and Simulation Laboratory (AL), Department of Electrical and Computer Systems Engineering, Monash University, Clayton, Victoria 3800, Australia
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18
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Hou S, Chen Y, Lu D, Xiong Q, Lim Y, Duan H. A Self-Assembled Plasmonic Substrate for Enhanced Fluorescence Resonance Energy Transfer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906475. [PMID: 31943423 DOI: 10.1002/adma.201906475] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/09/2019] [Indexed: 06/10/2023]
Abstract
Fluorescence resonance energy transfer (FRET) has found widespread uses in biosensing, molecular imaging, and light harvesting. Plasmonic metal nanostructures offer the possibility of engineering photonic environment of specific fluorophores to enhance the FRET efficiency. However, the potential of plasmonic nanostructures to enable tailored FRET enhancement on planar substrates remains largely unrealized, which are of considerable interest for high-performance on-surface bioassays and photovoltaics. The main challenge lies in the necessitated concurrent control over the spectral properties of plasmonic substrates to match that of fluorophores and the fluorophore-substrate spacing. Here, a self-assembled plasmonic substrate based on polydopamine (PDA)-coated plasmonic nanocrystals is developed to effectively address this challenge. The PDA coating not only drives interfacial self-assembly of the nanocrystals to form closely packed arrays with customized optical properties, but also can serve as a tailored nanoscale spacer between the fluorophores and plasmonic nanocrystals, which collectively lead to optimized fluorescence enhancement. The biocompatible plasmonic substrate that allows convenient bioconjugation imparted by PDA has afforded improved FRET efficiency in DNA microarray assay and FRET imaging of live cells. It is envisioned that the self-assembled plasmonic substrates can be readily integrated into fluorescence-based platforms for diverse biomedical and photoconversion applications.
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Affiliation(s)
- Shuai Hou
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Yonghao Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Derong Lu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Qirong Xiong
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Yun Lim
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Hongwei Duan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
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19
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Advances in oligonucleotide-based detection coupled with fluorescence resonance energy transfer. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115756] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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20
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Zhang C, Zhang T, Zhang Z, Zheng H. Plasmon Enhanced Fluorescence and Raman Scattering by [Au-Ag Alloy NP Cluster]@SiO 2 Core-Shell Nanostructure. Front Chem 2019; 7:647. [PMID: 31616656 PMCID: PMC6768946 DOI: 10.3389/fchem.2019.00647] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 09/10/2019] [Indexed: 11/16/2022] Open
Abstract
Silica-shell coated noble metal nanoparticles have shown a good performance in surface enhanced fluorescence and Raman scattering. However, silica-shell coated single noble nanoparticle cannot effectively enhance the optical signal due to the relative weak near-field enhancement. In this paper, [Au-Ag alloy NP cluster]@SiO2 core-shell nanostructure is employed to achieve the effective electric field enhancement. With the specific structure, simultaneous Raman scattering and fluorescence emission enhancement is obtained, and the enhancement comparison of fluorescence emission with Raman scattering in different type agglomeration of metal NPs is investigated in-situ. With different thickness of SiO2 shell, the optimized Raman and fluorescence enhancement systems are obtained, respectively, and corresponding study of power dependence are investigated in detail. The selectively enhanced Raman and fluorescence can be realized via controlling the shell thickness and laser power. Our work provides a non-polarization dependent [metal NP cluster]@SiO2 system, which may have a promising application in portable chemical and biochemistry detecting.
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Affiliation(s)
- Chengyun Zhang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, China
| | - Tingting Zhang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, China
| | - Zhenglong Zhang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, China
| | - Hairong Zheng
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, China
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21
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Macia N, Kabanov V, Côté-Cyr M, Heyne B. Roles of Near and Far Fields in Plasmon-Enhanced Singlet Oxygen Production. J Phys Chem Lett 2019; 10:3654-3660. [PMID: 31194564 DOI: 10.1021/acs.jpclett.9b01165] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
In plasmon-enhanced singlet oxygen (1O2) production, irradiation of a hybrid photosensitizer-metal nanoparticle leads to a significant alteration of the photosensitizer's 1O2 yield. The quest for a more rational design of these nanomaterials calls for a better understanding of the enhancement mechanism that, to this day, remains largely unexplored. Herein, we introduce a new methodology to distinguish the near- and far-field contributions to the plasmon-enhanced 1O2 production using a tunable model nanoplatform, Rose Bengal-decorated silica-coated metal nanoparticles. By correlating 1O2 production to the experimental and simulated optical properties of our nanoparticles, we effectively discriminate how the near- and far-field effects contribute to the plasmonic interactions. We show that these effects work in synergy; i.e., for nanoparticles with a similar local field, the production of 1O2 correlates with maximized scattering yields. Our results expound the critical plasmonic aspects in terms of near and far fields for the design of an efficient hybrid plasmonic nanoparticle photosensitizer.
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Affiliation(s)
- Nicolas Macia
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
| | - Vladimir Kabanov
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
| | - Mélanie Côté-Cyr
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
| | - Belinda Heyne
- Department of Chemistry , University of Calgary , 2500 University Drive Northwest , Calgary , Alberta , Canada T2N 1N4
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22
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Kim KS, Kim JH, Yoo SI, Sohn BH. Fluorescence Resonance Energy Transfer within Diblock Copolymer Micelles in the Proximity of Metal Nanoparticles. Macromol Res 2019. [DOI: 10.1007/s13233-019-7127-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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23
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Zhang J, Dong Y, Zhu W, Xie D, Zhao Y, Yang D, Li M. Ultrasensitive Detection of Circulating Tumor DNA of Lung Cancer via an Enzymatically Amplified SERS-Based Frequency Shift Assay. ACS APPLIED MATERIALS & INTERFACES 2019; 11:18145-18152. [PMID: 31050289 DOI: 10.1021/acsami.9b02953] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Circulating tumor DNA (ctDNA) is a promising noninvasive biomarker for the early diagnosis of cancers. However, it is challenging for accurate and sensitive detection of pico-to-femtomolar serum concentration of ctDNA, especially in the presence of its analogues that produce strong background noise. Herein, a DNA-rN1-DNA-mediated surface-enhanced Raman scattering frequency shift assay is developed, which enables sensitive detection of ctDNA with one single base pair mutation (KARS G12D mutation) from the normal ones (KARS G12D normal) of lung cancer. This sensing platform features in both the designed hairpin DNA-rN1-DNA probe for specific ctDNA recognition and the employed RNase HII enzyme that specifically hydrolyzes the DNA-rN1-DNA/ctDNA hybrid and thus allows ctDNA recycling in the system to realize signal amplification. The detection system shows sub-femtomolar-level sensitivity in the phosphate-buffered saline solution and is demonstrated to function well in both fetal bovine serum and human physiological media. In particular, the sensitive assay of ctDNA in serum samples from lung cancer patients is achieved, suggesting its high potential applications in clinical settings for early diagnosis and prognosis of lung cancer.
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Affiliation(s)
- Jie Zhang
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , China
| | - Yuhang Dong
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , China
| | - Wenfeng Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , China
| | - Dan Xie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , China
| | - Dayong Yang
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , China
| | - Min Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , China
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24
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Smirnova TD, Shtykov SN, Zhelobitskaya EA. Energy transfer in liquid and solid nanoobjects: application in luminescent analysis. PHYSICAL SCIENCES REVIEWS 2019. [DOI: 10.1515/psr-2018-9981] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Abstract
Radiationless resonance electronic excitation energy transfer (ET) is a fundamental physical phenomenon in luminescence spectroscopy playing an important role in natural processes, especially in photosynthesis and biochemistry. Besides, it is widely used in photooptics, optoelectronics, and protein chemistry, coordination chemistry of transition metals and lanthanides as well as in luminescent analysis. ET involves the transfer of electronic energy from a donor (D) (molecules or particles) which is initially excited, to an acceptor (A) at the ground state to emit it later. Fluorescence or phosphorescence of the acceptor that occurs during ET is known as sensitized. There do many kinds of ET exist but in all cases along with other factors the rate and efficiency of ET in common solvents depends to a large extent on the distance between the donor and the acceptor. This dependency greatly limits the efficiency of ET and, correspondingly, does not allow the determination of analytes in highly diluted (10–9–10–15 M) solutions. To solve the problem of distance-effect, the effects of concentrating and bring close together the donor and acceptor in surfactant micelles (liquid nanosystems) or sorption on solid nanoparticles are used. Various approaches to promote the efficiency of ET for improvement determination selectivity and sensitivity using liquid and solid nanoobjects is reviewed and analyzed.
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25
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Zong H, Wang X, Mu X, Wang J, Sun M. Plasmon-Enhanced Fluorescence Resonance Energy Transfer. CHEM REC 2019; 19:818-842. [PMID: 30716206 DOI: 10.1002/tcr.201800181] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 01/07/2019] [Indexed: 11/12/2022]
Abstract
In this review, we firstly introduce physical mechanism of fluorescence resonance energy transfer (FRET), the methods to measure FRET efficiency, and the applications of FRET. Secondly, we introduce the principle and applications of plasmon-enhanced fluorescence (PEF). Thirdly, we focused on the principle and applications of plasmon-enhanced FRET. This review can promote further understanding of FRET and PE-FRET.
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Affiliation(s)
- Huan Zong
- Computational Center for Property and Modification on Nanomaterials, College of Science, Liaoning Shihua University, Fushun, 113001, People's Republic of China.,School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Xinxin Wang
- School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Xijiao Mu
- School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Jingang Wang
- Computational Center for Property and Modification on Nanomaterials, College of Science, Liaoning Shihua University, Fushun, 113001, People's Republic of China
| | - Mengtao Sun
- School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
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26
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Macia N, Bresoli-Obach R, Nonell S, Heyne B. Hybrid Silver Nanocubes for Improved Plasmon-Enhanced Singlet Oxygen Production and Inactivation of Bacteria. J Am Chem Soc 2018; 141:684-692. [PMID: 30525580 DOI: 10.1021/jacs.8b12206] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Plasmonic nanoparticles can strongly interact with adjacent photosensitizer molecules, resulting in a significant alteration of their singlet oxygen (1O2) production. In this work, we report the next generation of metal-enhanced 1O2 nanoplatforms exploiting the lightning rod effect, or plasmon hot spots, in anisotropic (nonspherical) metal nanoparticles. We describe the synthesis of Rose Bengal-decorated silica-coated silver nanocubes (Ag@SiO2-RB NCs) with silica shell thicknesses ranging from 5 to 50 nm based on an optimized protocol yielding highly homogeneous Ag NCs. Steady-state and time-resolved 1O2 measurements demonstrate not only the silica shell thickness dependence on the metal-enhanced 1O2 production phenomenon but also the superiority of this next generation of nanoplatforms. A maximum enhancement of 1O2 of approximately 12-fold is observed with a 10 nm silica shell, which is among the largest 1O2 production metal enhancement factors ever reported for a colloidal suspension of nanoparticles. Finally, the Ag@SiO2-RB NCs were benchmarked against the Ag@SiO2-RB nanospheres previously reported by our group, and the superior 1O2 production of Ag@SiO2-RB NCs resulted in improved antimicrobial activities in photodynamic inactivation experiments using both Gram-positive and -negative bacteria model strains.
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Affiliation(s)
- Nicolas Macia
- Department of Chemistry , University of Calgary , Calgary , Alberta , Canada T2N 1N4
| | - Roger Bresoli-Obach
- Institut Quimic de Sarria , Universitat Ramon Llull , Barcelona 08029 , Spain
| | - Santi Nonell
- Institut Quimic de Sarria , Universitat Ramon Llull , Barcelona 08029 , Spain
| | - Belinda Heyne
- Department of Chemistry , University of Calgary , Calgary , Alberta , Canada T2N 1N4
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27
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Zhang T, Huang Y, Ma X, Gong N, Liu X, Liu L, Ye X, Hu B, Li C, Tian JH, Magrini A, Zhang J, Guo W, Xing JF, Bottini M, Liang XJ. Fluorinated Oligoethylenimine Nanoassemblies for Efficient siRNA-Mediated Gene Silencing in Serum-Containing Media by Effective Endosomal Escape. NANO LETTERS 2018; 18:6301-6311. [PMID: 30240228 DOI: 10.1021/acs.nanolett.8b02553] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Efficient small interfering RNA (siRNA) delivery in the presence of serum is of crucial importance for effective gene therapy. Fluorinated vectors are considered to be attractive candidates for siRNA-mediated gene therapy because of their delivery efficacy in serum-containing media. However, the mechanisms driving the superior gene transfection behavior of fluorinated vectors are still not well-understood, and comprehensive investigations are warranted. Herein, we fabricated a library of perfluorooctanoyl fluoride-fluorinated (PFF-fluorinated) oligoethylenimines (f xOEIs, x is the PFF:OEI feeding ratio), which can readily form nanoassemblies (f xOEI NAs) capable of efficient siRNA delivery in cells cultured in medium both devoid of and supplemented with fetal bovine serum (FBS). The gene silencing test in serum-containing medium revealed that the f0.7OEI/siRNA NAs achieved a luciferase silencing of ∼88.4% in Luc-HeLa cells cultured in FBS-containing medium, which was almost 2-fold greater than the silencing efficacy of siRNA delivered by the commercially available vector Lipo 2000 (∼48.8%). High levels of apolipoprotein B silencing were also achieved by f0.7OEI/siRNA NAs in vivo. For an assessment of the underlying mechanisms of the efficacy of gene silencing of fluorinated vectors, two alkylated OEIs, aOEI-C8 and aOEI-C12, were fabricated as controls with similar molecular structure and hydrophobicity to that of f0.7OEI, respectively. In vitro investigations showed that the superior gene delivery exhibited by f0.7OEI NAs derived from the potent endosomal disruption capability of fluorinated vectors in the presence of serum, which was essentially attributed to the serum protein adsorption resistance of the f0.7OEI NAs. Therefore, this work provides an innovative approach to siRNA delivery as well as insights into fluorine-associated serum resistance.
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Affiliation(s)
- Tingbin Zhang
- School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , P. R. China
- Chinese Academy of Sciences (CAS) Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , Beijing 100190 , P. R. China
| | - Yuanyu Huang
- Advanced Research Institute of Multidisciplinary Science, School of Life Science , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Xiaowei Ma
- Chinese Academy of Sciences (CAS) Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , Beijing 100190 , P. R. China
| | - Ningqiang Gong
- Chinese Academy of Sciences (CAS) Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , Beijing 100190 , P. R. China
| | - Xiaoli Liu
- Chinese Academy of Sciences (CAS) Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , Beijing 100190 , P. R. China
| | - Lu Liu
- Chinese Academy of Sciences (CAS) Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , Beijing 100190 , P. R. China
- Department of Experimental Medicine and Surgery , University of Rome Tor Vergata , Via Montpellier 1 , 00133 Rome , Italy
| | - Xiaoxia Ye
- Chinese Academy of Sciences (CAS) Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , Beijing 100190 , P. R. China
| | - Bo Hu
- Advanced Research Institute of Multidisciplinary Science, School of Life Science , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Chunhui Li
- Advanced Research Institute of Multidisciplinary Science, School of Life Science , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Jian-Hua Tian
- School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , P. R. China
| | - Andrea Magrini
- Department of Biomedicine and Prevention , University of Rome Tor Vergata , Via Montpellier 1 , 00133 Rome , Italy
| | - Jinchao Zhang
- Chemical Biology Key Laboratory of Hebei Province, College of Chemistry & Environmental Science , Hebei University , Baoding 071002 , P. R. China
| | - Weisheng Guo
- Translational Medicine Center, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital , Guangzhou Medical University , Guangzhou 510260 , P. R. China
| | - Jin-Feng Xing
- School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , P. R. China
| | - Massimo Bottini
- Chinese Academy of Sciences (CAS) Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , Beijing 100190 , P. R. China
- Department of Experimental Medicine and Surgery , University of Rome Tor Vergata , Via Montpellier 1 , 00133 Rome , Italy
| | - Xing-Jie Liang
- Chinese Academy of Sciences (CAS) Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , Beijing 100190 , P. R. China
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Kim KS, Yoo SI, Sohn BH. Metal-Coupled Fluorescence Resonance Energy Transfer in Layer-by-Layer Assemblies for Dual Modality Fluorescence Enhancement. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800115] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ki-Se Kim
- Department of Chemistry; Seoul National University; Seoul 08826 Republic of Korea
| | - Seong Il Yoo
- Department of Polymer Engineering; Pukyong National University; Busan 48547 Republic of Korea
| | - Byeong-Hyeok Sohn
- Department of Chemistry; Seoul National University; Seoul 08826 Republic of Korea
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29
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Hu J, Wu M, Jiang L, Zhong Z, Zhou Z, Rujiralai T, Ma J. Combining gold nanoparticle antennas with single-molecule fluorescence resonance energy transfer (smFRET) to study DNA hairpin dynamics. NANOSCALE 2018; 10:6611-6619. [PMID: 29578224 DOI: 10.1039/c7nr08397a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The association of a plasmonic nano-antenna with single-molecule FRET technique presents new prospects to investigate the dynamics of biological molecules. However, the presence of a plasmonic nano-antenna significantly modifies the FRET rate and efficiency; this makes its applicability to the prevalent single-molecule FRET experiments unclear. Herein, using gold nanoparticle antennas of different sizes and DNA hairpins labelled with FRET pairs (Cy3 and Cy5) as the model system, we performed experiments to study the folding dynamics of single DNA hairpins at various salt concentrations. Our results indicate that gold nanoparticle antennas can enhance single-molecule fluorescence of Cy3 and Cy5 up to 3-5 folds, substantially reduce the FRET efficiency, and alter the obtained FRET efficiency histograms. However, the folding dynamics of DNA hairpins remains unaffected, and the correct kinetic and dynamic information can still be extracted from the seriously modified FRET efficiencies. Therefore, our experiments demonstrate the feasibility and compatibility for applying plasmonic nano-antennas to the mostly used single-molecule FRET assays, which provide a broad range of possibilities for the future applications of these nano-antennas in studying various essential biological processes.
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Affiliation(s)
- Jinyong Hu
- School of Physics, Sun Yat-sen University, Guangzhou 510275, People's Republic of China.
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30
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Concomitant Organization of Fluorescent Dyes and Au Nanoparticles in Spin-Coated Films of Diblock Copolymer Micelles. Macromol Res 2018. [DOI: 10.1007/s13233-018-6017-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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Wang S, Clapper A, Chen P, Wang L, Aharonovich I, Jin D, Li Q. Tuning Enhancement Efficiency of Multiple Emissive Centers in Graphene Quantum Dots by Core-Shell Plasmonic Nanoparticles. J Phys Chem Lett 2017; 8:5673-5679. [PMID: 29090932 DOI: 10.1021/acs.jpclett.7b02550] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Graphene quantum dots (GQDs) are emerging luminescent nanomaterials for energy, bioimaging, and optoelectronic applications. However, unlike conventional fluorophores, GQDs contain multiple emissive centers that result in a complex interaction with external electromagnetic fields. Here we utilize core-shell plasmonic nanoparticles to simultaneously enhance and modulate the photoluminescence (PL) intensities and spectral profiles of GQDs. By analyzing the spectral profiles, we show that the emissive centers are highly influenced by the proximity to the metal particles. Under optimal spacer thickness of 25 nm, the overall PL displays a four-fold enhancement compared with a pristine GQD. However, detailed lifetime measurements indicate the presence of midgap states that act as the bottleneck for further enhancement. Our results offer new perspectives for fundamental understanding and new design of functional luminescent materials (e.g., GQDs, graphene oxide, carbon dots) for imaging, sensing, and light harvesting.
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Affiliation(s)
- Shujun Wang
- Queensland Miro- and Nanotechnology Centre, Griffith University , Nathan, Queensland 4111, Australia
- School of Engineering (Environmental), Griffith University , Nathan, Queensland 4111, Australia
| | - Ashleigh Clapper
- School of Engineering (Environmental), Griffith University , Nathan, Queensland 4111, Australia
| | - Peng Chen
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, Queensland 4072, Australia
| | - Lianzhou Wang
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, Queensland 4072, Australia
| | - Igor Aharonovich
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney , Ultimo, New South Wales 2007, Australia
| | - Dayong Jin
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney , Ultimo, New South Wales 2007, Australia
| | - Qin Li
- Queensland Miro- and Nanotechnology Centre, Griffith University , Nathan, Queensland 4111, Australia
- School of Engineering (Environmental), Griffith University , Nathan, Queensland 4111, Australia
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32
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Liang L, Lan F, Yin X, Ge S, Yu J, Yan M. Metal-enhanced fluorescence/visual bimodal platform for multiplexed ultrasensitive detection of microRNA with reusable paper analytical devices. Biosens Bioelectron 2017; 95:181-188. [DOI: 10.1016/j.bios.2017.04.027] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 04/02/2017] [Accepted: 04/20/2017] [Indexed: 01/20/2023]
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33
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Akhavan S, Akgul MZ, Hernandez-Martinez PL, Demir HV. Plasmon-Enhanced Energy Transfer in Photosensitive Nanocrystal Device. ACS NANO 2017; 11:5430-5439. [PMID: 28528543 DOI: 10.1021/acsnano.6b08392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Förster resonance energy transfer (FRET) interacted with localized surface plasmon (LSP) gives us the ability to overcome inadequate transfer of energy between donor and acceptor nanocrystals (NCs). In this paper, we show LSP-enhanced FRET in colloidal photosensors of NCs in operation, resulting in substantially enhanced photosensitivity. The proposed photosensitive device is a layered self-assembled colloidal platform consisting of separated monolayers of the donor and the acceptor colloidal NCs with an intermediate metal nanoparticle (MNP) layer made of gold interspaced by polyelectrolyte layers. Using LBL assembly, we fabricated and comparatively studied seven types of such NC-monolayer devices (containing only donor, only acceptor, Au MNP-donor, Au MNP-acceptor, donor-acceptor bilayer, donor-Au MNP-acceptor trilayer, and acceptor-Au MNP-donor reverse trilayer). In these structures, we revealed the effect of LSP-enhanced FRET and exciton interactions from the donor NCs layer to the acceptor NCs layer. Compared to a single acceptor NC device, we observed a significant extension in operating wavelength range and a substantial photosensitivity enhancement (2.91-fold) around the LSP resonance peak of Au MNPs in the LSP-enhanced FRET trilayer structure. Moreover, we present a theoretical model for the intercoupled donor-Au MNP-acceptor structure subject to the plasmon-mediated nonradiative energy transfer. The obtained numerical results are in excellent agreement with the systematic experimental studies done in our work. The potential to modify the energy transfer through mastering the exciton-plasmon interactions and its implication in devices make them attractive for applications in nanophotonic devices and sensors.
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Affiliation(s)
- Shahab Akhavan
- UNAM-Institute of Materials Science and Nanotechnology, Department of Electrical and Electronics Engineering and Department of Physics, Bilkent University , Ankara 06800, Turkey
| | - Mehmet Zafer Akgul
- UNAM-Institute of Materials Science and Nanotechnology, Department of Electrical and Electronics Engineering and Department of Physics, Bilkent University , Ankara 06800, Turkey
| | - Pedro Ludwig Hernandez-Martinez
- UNAM-Institute of Materials Science and Nanotechnology, Department of Electrical and Electronics Engineering and Department of Physics, Bilkent University , Ankara 06800, Turkey
- LUMINOUS! Center of Excellence, School of Electrical and Electronic Engineering and School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 639798, Singapore
| | - Hilmi Volkan Demir
- UNAM-Institute of Materials Science and Nanotechnology, Department of Electrical and Electronics Engineering and Department of Physics, Bilkent University , Ankara 06800, Turkey
- LUMINOUS! Center of Excellence, School of Electrical and Electronic Engineering and School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 639798, Singapore
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34
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Deng YL, Xu DD, Pang DW, Tang HW. Target-triggered signal turn-on detection of prostate specific antigen based on metal-enhanced fluorescence of Ag@SiO 2@SiO 2-RuBpy composite nanoparticles. NANOTECHNOLOGY 2017; 28:065501. [PMID: 28045004 DOI: 10.1088/1361-6528/28/6/065501] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
A three-layer core-shell nanostructure consisting of a silver core, a silica spacer, and a fluorescent dye RuBpy-doped outer silica layer was fabricated, and the optimal metal-enhanced fluorescence (MEF) distance was explored through adjusting the thickness of the silica spacer. The results show that the optimal distance is ∼10.4 nm with the maximum fluorescence enhancement factor 2.12. Then a new target-triggered MEF 'turn-on' strategy based on the optimized composite nanoparticles was successfully constructed for quantitative detection of prostate specific antigen (PSA), by using RuBpy as the energy donor and BHQ-2 as the acceptor. The hybridization of the complementary DNA of PSA-aptamer immobilized on the surface of the MEF nanoparticles with PSA-aptamer modified with BHQ-2, brought BHQ-2 in close proximity to RuBpy-doped silica shell and resulted in the decrease of fluorescence. In the presence of target PSA molecules, the BHQ-PSA aptamer is dissociated from the surface of the nanoparticles with the fluorescence switched on. Therefore, the assay of PSA was achieved by measuring the varying fluorescence intensity. The results show that PSA can be detected in the range of 1-100 ng ml-1 with a detection limit of 0.20 ng ml-1 (6.1 pM), which is 6.7-fold increase of that using hollow RuBpy-doped silica nanoparticles. Moreover, satisfactory results were obtained when PSA was detected in 1% serum.
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35
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Bujak Ł, Ishii T, Sharma DK, Hirata S, Vacha M. Selective turn-on and modulation of resonant energy transfer in single plasmonic hybrid nanostructures. NANOSCALE 2017; 9:1511-1519. [PMID: 28067372 DOI: 10.1039/c6nr08740j] [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
Förster resonant energy transfer (FRET) is a nonradiative process by which the energy of light absorbed by a donor molecule is transferred to an acceptor molecule over a distance of several nanometers. FRET plays a crucial role in photosynthesis and nature-inspired artificial light-harvesting systems that are being explored for use in energy conversion applications. Localized plasmons of metal nanoparticles can potentially lead to a significant increase of FRET efficiency and effective donor-acceptor distance. Here, we prepare hybrid nanostructures composed of a gold nanorod and donor and acceptor molecules covalently attached to its surface, and study them on the level of a single nanoparticle by simultaneous dark-field scattering, fluorescence imaging and spectroscopy. The single-particle approach enables selective excitation of the longitudinal plasmon of the gold nanorod by polarization of the excitation light. The emission intensity of the acceptor molecules can be controllably and reversibly modulated over a wide range by the polarization angle, thus enabling a selective turn-on of the FRET process and control over the emission color of the hybrid nanostructure. Numerical simulations show that the interactions of the donor and acceptor molecules with the plasmon lead to an increase of the energy transfer efficiency by a factor of ∼65. These findings represent the concept of a novel colour switching approach and could pave the way for innovative applications in optoelectronics and nanophotonics.
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Affiliation(s)
- Łukasz Bujak
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| | - Tatsuya Ishii
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| | - Dharmendar Kumar Sharma
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| | - Shuzo Hirata
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| | - Martin Vacha
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
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36
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Gontero D, Lessard-Viger M, Brouard D, Bracamonte AG, Boudreau D, Veglia AV. Smart multifunctional nanoparticles design as sensors and drug delivery systems based on supramolecular chemistry. Microchem J 2017. [DOI: 10.1016/j.microc.2016.10.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Gontero D, Veglia AV, Bracamonte AG, Boudreau D. Synthesis of ultraluminescent gold core–shell nanoparticles as nanoimaging platforms for biosensing applications based on metal-enhanced fluorescence. RSC Adv 2017. [DOI: 10.1039/c6ra27649k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Core–shell nanoparticles are versatile nanostructures that can be applied as luminescent biosensing platforms in many nanotechnological developments.
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Affiliation(s)
- D. Gontero
- Laboratorio de Análisis Clínicos y Bacteriológicos
- Clínica de la Familia II
- Río Tercero
- Argentina
| | - A. V. Veglia
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC)
- Departamento de Química Orgánica
- Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba
- Ciudad Universitaria
| | - A. G. Bracamonte
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC)
- Departamento de Química Orgánica
- Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba
- Ciudad Universitaria
| | - D. Boudreau
- Departement de chimie and Centre d'optique
- photonique et laser (COPL)
- Université Laval
- Québec (QC)
- Canada
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38
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Xu DD, Deng YL, Li CY, Lin Y, Tang HW. Metal-enhanced fluorescent dye-doped silica nanoparticles and magnetic separation: A sensitive platform for one-step fluorescence detection of prostate specific antigen. Biosens Bioelectron 2017; 87:881-887. [DOI: 10.1016/j.bios.2016.09.034] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/06/2016] [Accepted: 09/10/2016] [Indexed: 10/21/2022]
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39
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Asselin J, Lambert MP, Fontaine N, Boudreau D. A ratiometric nanoarchitecture for the simultaneous detection of pH and halide ions using UV plasmon-enhanced fluorescence. Chem Commun (Camb) 2017; 53:755-758. [DOI: 10.1039/c6cc08693d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In this work, we designed a ratiometric core–shell nanoarchitecture composed of an indium UV plasmonic core, an internal reference (rhodamine B), a pH-sensitive probe (fluorescein), and a halide ion sensor (6-methoxyquinolinium).
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Affiliation(s)
- Jérémie Asselin
- Département de Chimie et Centre d'optique Photonique et Laser (COPL)
- Université Laval
- Canada
| | - Marie-Pier Lambert
- Département de Chimie et Centre d'optique Photonique et Laser (COPL)
- Université Laval
- Canada
| | - Nicolas Fontaine
- Département de Chimie et Centre d'optique Photonique et Laser (COPL)
- Université Laval
- Canada
| | - Denis Boudreau
- Département de Chimie et Centre d'optique Photonique et Laser (COPL)
- Université Laval
- Canada
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40
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Zhang C, Han Q, Li C, Zhang M, Yan L, Zheng H. Metal-enhanced fluorescence of single shell-isolated alloy metal nanoparticle. APPLIED OPTICS 2016; 55:9131-9136. [PMID: 27857300 DOI: 10.1364/ao.55.009131] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A single silica-shell isolated Au-Ag alloy nanoparticle is used for investigating a metal-enhanced fluorescence effect. Well-dispersed alloy nanoparticles are prepared by the facile chemical method, and the property of local surface plasmon resonance is controlled by adjusting the metal component of the alloy and shell thickness. The distance dependence of fluorescence enhancement for a single Au-Ag alloy nanoparticle is studied systematically with different silica shell thickness ranging from 2 to 35 nm. The isolation shell not only adjusts the distance between metal surface and fluorophore emitters but also improves the chemical stability of the metal particle.
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41
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Higgins LJ, Marocico CA, Karanikolas VD, Bell AP, Gough JJ, Murphy GP, Parbrook PJ, Bradley AL. Influence of plasmonic array geometry on energy transfer from a quantum well to a quantum dot layer. NANOSCALE 2016; 8:18170-18179. [PMID: 27740658 DOI: 10.1039/c6nr05990b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A range of seven different Ag plasmonic arrays formed using nanostructures of varying shape, size and gap were fabricated using helium-ion lithography (HIL) on an InGaN/GaN quantum well (QW) substrate. The influence of the array geometry on plasmon-enhanced Förster resonance energy transfer (FRET) from a single InGaN QW to a ∼80 nm layer of CdSe/ZnS quantum dots (QDs) embedded in a poly(methyl methacrylate) (PMMA) matrix is investigated. It is shown that the energy transfer efficiency is strongly dependent on the array properties and an efficiency of ∼51% is observed for a nanoring array. There were no signatures of FRET in the absence of the arrays. The QD acceptor layer emission is highly sensitive to the array geometry. A model was developed to confirm that the increase in the QD emission on the QW substrate compared with a GaN substrate can be attributed solely to plasmon-enhanced FRET. The individual contributions of direct enhancement of the QD layer emission by the array and the plasmon-enhanced FRET are separated out, with the QD emission described by the product of an array emission factor and an energy transfer factor. It is shown that while the nanoring geometry results in an energy transfer factor of ∼1.7 the competing quenching by the array, with an array emission factor of ∼0.7, results in only an overall gain of ∼14% in the QD emission. The QD emission was enhanced by ∼71% for a nanobox array, resulting from the combination of a more modest energy transfer factor of 1.2 coupled with an array emission factor of ∼1.4.
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Affiliation(s)
- Luke J Higgins
- School of Physics and CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - Cristian A Marocico
- School of Physics and CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | | | - Alan P Bell
- School of Physics and CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - John J Gough
- School of Physics and CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - Graham P Murphy
- School of Physics and CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - Peter J Parbrook
- Tyndall National Institute and School of Engineering, University College Cork, Lee Maltings, Prospect Row, Cork, Ireland
| | - A Louise Bradley
- School of Physics and CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland.
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42
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Zhang Y, Zhang M, Yang J, Ding L, Zheng J, Xu J, Xiong S. Formation of Fe3O4@SiO2@C/Ni hybrids with enhanced catalytic activity and histidine-rich protein separation. NANOSCALE 2016; 8:15978-88. [PMID: 27539541 DOI: 10.1039/c6nr05078f] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
In this paper, we have developed an extended Stöber method to construct a Ni(2+)-polydopamine (PDA) complex thin coating on Fe3O4@SiO2 spheres, which can be carbonized to produce hybrid composites with metallic nickel nanoparticles embedded in a PDA-derived thin graphitic carbon layer (named Fe3O4@SiO2@C/Ni). Interestingly, by introducing a thin SiO2 spacer layer between PDA-Ni(2+) and Fe3O4, the reverse electron transfer from PDA to Fe3O4 is probably able to be suppressed in the calcination process, which leads to the in situ reduction of only Ni(2+) by PDA instead of Fe3O4 and Ni(2+). Consequently, the size and density of nickel nanoparticles on the surface of SiO2@Fe3O4 can be finely adjusted. Moreover, it is found that the ability of tuning nickel nanoparticles is mainly dependent on the thickness of the spacer layer. When the thickness of the SiO2 spacer is beyond the electron penetration depth, the size and density of nickel nanoparticles can be exactly tuned. The as-prepared Fe3O4@SiO2@C/Ni was employed as the catalyst to investigate the catalytic performance in the reduction of 4-nitrophenol (4-NP); furthermore, nickel nanoparticles decorated on Fe3O4@SiO2@C spheres display a strong affinity to His-tagged proteins (BHb and BSA) via a specific metal affinity force between polyhistidine groups and nickel nanoparticles.
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Affiliation(s)
- Yanwei Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China.
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43
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Nano-supramolecular complex synthesis: Switch on/off enhanced fluorescence control and molecular release using a simple chemistry reaction. Microchem J 2016. [DOI: 10.1016/j.microc.2016.05.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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44
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Liu CY, Chen TP, Kao TS, Huang JK, Kuo HC, Chen YF, Chang CY. Color-conversion efficiency enhancement of quantum dots via selective area nano-rods light-emitting diodes. OPTICS EXPRESS 2016; 24:19978-87. [PMID: 27557273 DOI: 10.1364/oe.24.019978] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A large enhancement of color-conversion efficiency of colloidal quantum dots in light-emitting diodes (LEDs) with novel structures of nanorods embedded in microholes has been demonstrated. Via the integration of nano-imprint and photolithography technologies, nanorods structures can be fabricated at specific locations, generating functional nanostructured LEDs for high-efficiency performance. With the novel structured LED, the color-conversion efficiency of the existing quantum dots can be enhanced by up to 32.4%. The underlying mechanisms can be attributed to the enhanced light extraction and non-radiative energy transfer, characterized by conducting a series of electroluminescence and time-resolved photoluminescence measurements. This hybrid nanostructured device therefore exhibits a great potential for the application of multi-color lighting sources.
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45
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Montaño-Priede L, Peña-Rodríguez O, Rivera A, Guerrero-Martínez A, Pal U. Optimizing the electric field around solid and core-shell alloy nanostructures for near-field applications. NANOSCALE 2016; 8:14836-14845. [PMID: 27451969 DOI: 10.1039/c6nr03801h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The near electric field enhancement around plasmonic nanoparticles (NPs) is very important for applications like surface enhanced spectroscopies, plasmonic dye-sensitized solar cells and plasmon-enhanced OLEDs, where the interactions occur close to the surface of the NPs. In this work we have calculated the near-field enhancement around solid and core-shell alloy NPs as a function of their geometrical parameters and composition. We have found that the field enhancement is lower in the AuxAg1-x alloys with respect to pure Ag NPs, but it is still high enough for most near-field applications. The higher order modes have a stronger influence over the near-field due to a sharper spatial decay of the near electric field with the increase of the order of multipolar modes. For the same reason, in AuxAg1-x@SiO2 core-shell structures, the quadrupolar mode is dominant around the core, whereas the dipolar mode is predominant around the shell. The LSPR modes can have different behaviours in the near- and the far-field, particularly for larger particles with high Ag contents, which indicates that caution must be exercised for designing plasmonic nanostructures for near-field applications, as the variations of the LSPR in the near-field cannot be inferred from those observed in the far-field. These results have important implications for the application of gold-silver alloy NPs in surface enhanced spectroscopies and in the fabrication of plasmon-based optoelectronic devices, like dye-sensitized solar cells and plasmon-enhanced organic light-emitting diodes.
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Affiliation(s)
- Luis Montaño-Priede
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apdo. Postal J-48, Puebla, Puebla 72570, Mexico.
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46
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Chen X, Yu S, Yang L, Wang J, Jiang C. Fluorescence and visual detection of fluoride ions using a photoluminescent graphene oxide paper sensor. NANOSCALE 2016; 8:13669-77. [PMID: 27376510 DOI: 10.1039/c6nr02878k] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The instant and on-site detection of trace aqueous fluoride ions is still a challenge for environmental monitoring and protection. This work demonstrates a new analytical method and its utility of a paper sensor for visual detection of F(-) on the basis of the fluorescence resonance energy transfer (FRET) between photoluminescent graphene oxide (GO) and silver nanoparticles (AgNPs) through the formation of cyclic esters between phenylborinic acid and diol. The fluorescence of GO was quenched by the AgNPs, and trace F(-) can recover the fluorescence of the quenched photoluminescent GO. The increase in fluorescence intensity is proportional to the concentration of F(-) in the range of 0.05-0.55 nM, along with a limit of detection (LOD) as low as 9.07 pM. Following the sensing mechanism, a paper-based sensor for the visual detection of aqueous F(-) has been successfully developed. The paper sensor showed high sensitivity for aqueous F(-), and the LOD could reach as low as 0.1 μM as observed by the naked eye. The very simple and effective strategy reported here could be extended to the visual detection of a wide range of analytes in the environment by the construction of highly efficient FRET nanoprobes.
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Affiliation(s)
- Xiaochun Chen
- School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering, Hefei, Anhui 230009, China.
| | - Shaoming Yu
- School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering, Hefei, Anhui 230009, China.
| | - Liang Yang
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
| | - Jianping Wang
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
| | - Changlong Jiang
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China. and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China and State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Hefei, Anhui 230031, China
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47
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Ledin PA, Jeon JW, Geldmeier JA, Ponder JF, Mahmoud MA, El-Sayed M, Reynolds JR, Tsukruk VV. Design of Hybrid Electrochromic Materials with Large Electrical Modulation of Plasmonic Resonances. ACS APPLIED MATERIALS & INTERFACES 2016; 8:13064-13075. [PMID: 27145297 DOI: 10.1021/acsami.6b02953] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present a rational approach to fabricating plasmonically active hybrid polymer-metal nanomaterials with electrochemical tunability of the localized surface plasmon resonances (LSPRs) of noble metal nanostructures embedded in an electroactive polymer matrix. The key requirement for being able to significantly modulate the LSPR band position is a close overlap between the refractive index change [Δn(λ)] of a stimuli-responsive polymeric matrix and the intrinsic LSPR bands. For this purpose, gold nanorods with a controlled aspect ratio, synthesized to provide high refractive index sensitivity while maintaining good oxidative stability, were combined with a solution-processable electroactive and electrochromic polymer (ECP): alkoxy-substituted poly(3,4-propylenedioxythiophene) [PProDOT(CH2OEtHx)2]. Spectral characteristics of the ECP, in particular the Δn(λ) variation, were evaluated as the material was switched between oxidized and reduced states. We fabricated ultrathin plasmonic electrochromic hybrid films consisting of gold nanorods and ECP that exhibited a large, stable, and reversible LSPR modulation of up to 25-30 nm with an applied electrical potential. Finite-difference time-domain (FDTD) simulations confirm a good match between the experimentally measured refractive index change in the ECP and the plasmonic response during electrochemical modulations.
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Affiliation(s)
- Petr A Ledin
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States
| | - Ju-Won Jeon
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States
| | - Jeffrey A Geldmeier
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States
| | - James F Ponder
- School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics, and Georgia Tech Polymer Network, Georgia Institute of Technology , Atlanta, Georgia 30332-0400, United States
| | - Mahmoud A Mahmoud
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332-0400, United States
| | - Mostafa El-Sayed
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332-0400, United States
| | - John R Reynolds
- School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics, and Georgia Tech Polymer Network, Georgia Institute of Technology , Atlanta, Georgia 30332-0400, United States
| | - Vladimir V Tsukruk
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States
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48
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Fischer S, Kumar D, Hallermann F, von Plessen G, Goldschmidt JC. Enhanced upconversion quantum yield near spherical gold nanoparticles - a comprehensive simulation based analysis. OPTICS EXPRESS 2016; 24:A460-75. [PMID: 27136867 DOI: 10.1364/oe.24.00a460] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Photon upconversion is promising for many applications. However, the potential of lanthanide doped upconverter materials is typically limited by low absorption coefficients and low upconversion quantum yields (UCQY) under practical irradiance of the excitation. Modifying the photonic environment can strongly enhance the spontaneous emission and therefore also the upconversion luminescence. Additionally, the non-linear nature of the upconversion processes can be exploited by an increased local optical field introduced by photonic or plasmonic structures. In combination, both processes may lead to a strong enhancement of the UCQY at simultaneously lower incident irradiances. Here, we use a comprehensive 3D computation-based approach to investigate how absorption, upconversion luminescence, and UCQY of an upconverter are altered in the vicinity of spherical gold nanoparticles (GNPs). We use Mie theory and electrodynamic theory to compute the properties of GNPs. The parameters obtained in these calculations were used as input parameters in a rate equation model of the upconverter β-NaYF4: 20% Er3+. We consider different diameters of the GNP and determine the behavior of the system as a function of the incident irradiance. Whether the UCQY is increased or actually decreased depends heavily on the position of the upconverter in respect to the GNP. Whereas the upconversion luminescence enhancement reaches a maximum around a distance of 35 nm to the surface of the GNP, we observe strong quenching of the UCQY for distances <40 nm and a UCQY maximum around 125 to 150 nm, in the case of a 300 nm diameter GNP. Hence, the upconverter material needs to be placed at different positions, depending on whether absorption, upconversion luminescence, or UCQY should be maximized. At the optimum position, we determine a maximum UCQY enhancement of 117% for a 300 nm diameter GNP at a low incident irradiance of 0.01 W/cm2. As the irradiance increases, the maximum UCQY enhancement decreases to 20% at 1 W/cm2. However, this UCQY enhancement translates into a significant improvement of the UCQY from 12.0% to 14.4% absolute.
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49
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Planas O, Macia N, Agut M, Nonell S, Heyne B. Distance-Dependent Plasmon-Enhanced Singlet Oxygen Production and Emission for Bacterial Inactivation. J Am Chem Soc 2016; 138:2762-8. [DOI: 10.1021/jacs.5b12704] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Oriol Planas
- Institut
Quimic de Sarria, Universitat Ramon Llull, Barcelona 08022, Spain
| | - Nicolas Macia
- Department
of Chemistry, University of Calgary, Alberta AB T2N 1N4, Canada
| | - Montserrat Agut
- Institut
Quimic de Sarria, Universitat Ramon Llull, Barcelona 08022, Spain
| | - Santi Nonell
- Institut
Quimic de Sarria, Universitat Ramon Llull, Barcelona 08022, Spain
| | - Belinda Heyne
- Department
of Chemistry, University of Calgary, Alberta AB T2N 1N4, Canada
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50
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Marocico CA, Zhang X, Bradley AL. A theoretical investigation of the influence of gold nanosphere size on the decay and energy transfer rates and efficiencies of quantum emitters. J Chem Phys 2016; 144:024108. [DOI: 10.1063/1.4939206] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Cristian A. Marocico
- Semiconductor Photonics Group, School of Physics and CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Xia Zhang
- Semiconductor Photonics Group, School of Physics and CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - A. Louise Bradley
- Semiconductor Photonics Group, School of Physics and CRANN, Trinity College Dublin, College Green, Dublin 2, Ireland
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