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Scanda K, Salas-Juárez CJ, Guzmán-Silva RE, Beltran HI, Garduño I, Guzmán-Mendoza J. Synthesis and photoluminescent spectroscopic analysis of lanthanum (III) coordinated with 1,10-Phenanthroline: A study of its thermally stable behavior. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 325:125046. [PMID: 39217951 DOI: 10.1016/j.saa.2024.125046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 08/19/2024] [Accepted: 08/24/2024] [Indexed: 09/04/2024]
Abstract
A blue-emitting phosphor designed by lanthanum (III) coordinated with two 1,10-Phenanthroline and three nitrate ligands, [La(Phen)2(NO3)3], was obtained by an effective and simple precipitation method. Fourier transform infrared spectroscopy (FTIR) and powder X-ray diffraction (PXRD) revealed the coordination modes in the compound and the chemical structure, crystallizing in a monoclinic system in the C2/c space group. The luminescence properties, absolute quantum yield (ϕ), and luminescence lifetime decay (τ) were determined by photoluminescence spectroscopy. Under a 350 nm excitation, the sample presents three emission bands corresponding to the π* → π transitions belonging to the organic ligand. The luminescence lifetime (τ) was determined through a monoexponentially fit, obtaining a value of 5616 ns. The [La(Phen)2(NO3)3] complex exhibits an absolute quantum yield of 3 % with the same excitation conditions. In addition, the photometric analysis shows that the luminescent response to a 350 nm excitation is that of a blue-emitting high-purity phosphor with 96 % and chromatic coordinates of 0.15, 0.05. The temperature-dependent luminescence properties revealed considerable thermal stability in the 20-150 °C range with a signal loss of 47 % and an activation energy of thermal quenching (ΔE) of 0.13 eV, the first value reported for a lanthanum complex based on 1,10-Phenanthroline.
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Affiliation(s)
- K Scanda
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada del Instituto Politécnico Nacional. Legaria 694, Col. Irrigación. Miguel Hidalgo, 11500 Ciudad de México, México.
| | - Ch J Salas-Juárez
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada del Instituto Politécnico Nacional. Legaria 694, Col. Irrigación. Miguel Hidalgo, 11500 Ciudad de México, México.
| | - R E Guzmán-Silva
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada del Instituto Politécnico Nacional. Legaria 694, Col. Irrigación. Miguel Hidalgo, 11500 Ciudad de México, México
| | - H I Beltran
- Departamento de Ciencias Básicas, DCBI, UAM Azcapotzalco, 02200 CDMX, México
| | - I Garduño
- CONAHCyT/ Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada del Instituto Politécnico Nacional. Legaria 694, Col. Irrigación. Miguel Hidalgo, 11500 Ciudad de México, México
| | - J Guzmán-Mendoza
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada del Instituto Politécnico Nacional. Legaria 694, Col. Irrigación. Miguel Hidalgo, 11500 Ciudad de México, México
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2
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Khan MQ, Khan J, Alvi MAH, Nawaz H, Fahad M, Umar M. Nanomaterial-based sensors for microbe detection: a review. DISCOVER NANO 2024; 19:120. [PMID: 39080121 PMCID: PMC11289191 DOI: 10.1186/s11671-024-04065-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 07/15/2024] [Indexed: 08/02/2024]
Abstract
Airborne microorganisms pose a significant health threat, causing various illnesses. Traditional detection methods are often slow and complex. This review highlights the potential of nanomaterial-based biosensors, particularly colorimetric sensors, for rapid and on-site detection of airborne microbes. Colorimetric sensors offer real-time visual detection without complex instrumentation. We explore the integration of these sensors with Lab-on-a-Chip technology using PDMS microfluidics. This review also proposes a novel PDMS-based colorimetric biosensor for real-time detection of airborne microbes. The sensor utilizes a color change phenomenon easily observable with the naked eye, simplifying analysis and potentially enabling point-of-care applications.
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Affiliation(s)
- Muhammad Qamar Khan
- Department of Textile Engineering, School of Engineering and Technology, National Textile University, Faisalabad, 37610, Punjab, Pakistan.
| | - Jahangir Khan
- Department of Textile Engineering, School of Engineering and Technology, National Textile University, Faisalabad, 37610, Punjab, Pakistan
| | - Muhammad Abbas Haider Alvi
- Department of Textile Engineering, School of Engineering and Technology, National Textile University, Faisalabad, 37610, Punjab, Pakistan
| | - Hifza Nawaz
- Department of Materials, The University of Manchester, Manchester, M13 9PL, UK
| | - Muhammad Fahad
- Department of Textile Engineering, School of Engineering and Technology, National Textile University, Faisalabad, 37610, Punjab, Pakistan
| | - Muhammad Umar
- Department of Materials, The University of Manchester, Manchester, M13 9PL, UK.
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3
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Pallavicini P, Colombi C, Baccini C, Gatti B, D'Alfonso L, Dacarro G, Cattani S, Diaz Fernandez YA, Doveri L, Milanese C, Secchi A. Thiolated Cyanines Appended to Partially Pegylated Gold Nanoparticles for Fluorescence Quenching of Two-Channel Photothermal Inks. Chemistry 2024:e202400777. [PMID: 38924153 DOI: 10.1002/chem.202400777] [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: 02/26/2024] [Revised: 06/06/2024] [Accepted: 06/25/2024] [Indexed: 06/28/2024]
Abstract
Following a new approach, we prepared a nanoink with two separate photothermally responsive absorption bands. One is the localized surface plasmon resonance (LSPR) absorption of gold nanoparticles (AuNP, d=17 nm), the second is the absorption band of two cyanine (Cy) dyes, Cy7-C6 or Cy7-C11, grafted to the AuNP surface through thiolated bridges of different lengths: the close proximity to the Au surface induces full quenching of the Cy fluorescence, resulting in thermal relaxation on irradiation. Attempts to full coat AuNP with the lipophilic Cy7-C6 and Cy7-C11 lead to precipitation from aqueous solutions. We thus prepared AuNP with partial pegylation (30, 50, or 70 %), using a long chain thiol-terminated PEG bearing a -COOH function. Addition until saturation of either Cy7-C6 or Cy7-C11 to the partially pegylated AuNP gave the AuNP@Cy/PEGX% hybrids (X=30, 50, 70) that are stable in water and in the water/alcohol mixtures used to prepare the nanoinks. Further overcoating of AuNP@Cy7-C6/PEG50 % with PAH (polyallylamine hydrochloride) avoids LSPR hybridization in the dry nanoink printouts, that present two separate bands. When irradiated with laser sources near their absorption maxima, the printouts of the AuNP@Cy7-C6/PEG50 %@PAH nanoink respond on two channels, giving different temperature increases depending on the irradiation wavelengths. This enhances the potentiality of use of these nanoinks for photothermal anticounterfait printouts, making more difficult to reproduce the correct ΔT vs λirradiation output.
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Affiliation(s)
| | - Chiara Colombi
- Department of Chemistry, University of Pavia, v. Taramelli 12, 27100, Pavia, Italy
| | - Caterina Baccini
- Department of Chemical, Life and Environmental Sustainability Sciences, University of Parma, Parco Area delle Scienze, 17/A, 43124, Parma, Italy
| | - Beatrice Gatti
- Department of Chemical, Life and Environmental Sustainability Sciences, University of Parma, Parco Area delle Scienze, 17/A, 43124, Parma, Italy
| | - Laura D'Alfonso
- Department of Physics "G. Occhialini", University Milano Bicocca, Piazza della Scienza 3, 20126, Milano, Italy
| | - Giacomo Dacarro
- Department of Chemistry, University of Pavia, v. Taramelli 12, 27100, Pavia, Italy
| | - Silvia Cattani
- Department of Chemical, Life and Environmental Sustainability Sciences, University of Parma, Parco Area delle Scienze, 17/A, 43124, Parma, Italy
| | | | - Lavinia Doveri
- Department of Chemistry, University of Pavia, v. Taramelli 12, 27100, Pavia, Italy
| | - Chiara Milanese
- Department of Chemistry, University of Pavia, v. Taramelli 12, 27100, Pavia, Italy
| | - Andrea Secchi
- Department of Chemical, Life and Environmental Sustainability Sciences, University of Parma, Parco Area delle Scienze, 17/A, 43124, Parma, Italy
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Zhang Y, Wang L, Ge L, Wei Y, He S, Liu H. Temperature-sensitive metal-enhanced fluorescence and plasmon resonance energy transfer. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3331-3336. [PMID: 38742672 DOI: 10.1039/d4ay00315b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Experimental decoupling of the effects of plasmon resonance energy transfer (PRET) and metal-enhanced fluorescence (MEF) within the same nanometal-fluorophore pair is fascinating but challenging. In this study, we presented a possible solution for this by coating plasmonic Au nanoparticles (AuNPs) with temperature-sensitive poly(N-isopropylacrylamide) (pNIPAM) shells and R6G hybrids, termed the Au@p-R nanoplatform, which could reversibly adjust the separation between dyes and the AuNP surface, enabling an ON/OFF switch between MEF and PRET. In our optimization process, we discovered that 20 kDa of pNIPAM causes an MEF effect owing to an appropriate shrinking distance of 6.86 ± 0.85 nm. This dual-model nanoplatform exhibits great potential for tracking temperature-dependent transitions.
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Affiliation(s)
- Yu Zhang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230039, P. R. China.
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, P. R. China
| | - Liming Wang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230039, P. R. China.
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, P. R. China
| | - Li Ge
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, P. R. China
| | - Yujiao Wei
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230039, P. R. China.
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, P. R. China
| | - Shengnan He
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230039, P. R. China.
| | - Honglin Liu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, P. R. China
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Kapitany V, Fatima A, Zickus V, Whitelaw J, McGhee E, Insall R, Machesky L, Faccio D. Single-sample image-fusion upsampling of fluorescence lifetime images. SCIENCE ADVANCES 2024; 10:eadn0139. [PMID: 38781345 PMCID: PMC11114222 DOI: 10.1126/sciadv.adn0139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 04/17/2024] [Indexed: 05/25/2024]
Abstract
Fluorescence lifetime imaging microscopy (FLIM) provides detailed information about molecular interactions and biological processes. A major bottleneck for FLIM is image resolution at high acquisition speeds due to the engineering and signal-processing limitations of time-resolved imaging technology. Here, we present single-sample image-fusion upsampling, a data-fusion approach to computational FLIM super-resolution that combines measurements from a low-resolution time-resolved detector (that measures photon arrival time) and a high-resolution camera (that measures intensity only). To solve this otherwise ill-posed inverse retrieval problem, we introduce statistically informed priors that encode local and global correlations between the two "single-sample" measurements. This bypasses the risk of out-of-distribution hallucination as in traditional data-driven approaches and delivers enhanced images compared, for example, to standard bilinear interpolation. The general approach laid out by single-sample image-fusion upsampling can be applied to other image super-resolution problems where two different datasets are available.
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Affiliation(s)
- Valentin Kapitany
- School of Physics & Astronomy, University of Glasgow, Glasgow G12 8QQ, UK
| | - Areeba Fatima
- School of Physics & Astronomy, University of Glasgow, Glasgow G12 8QQ, UK
| | - Vytautas Zickus
- School of Physics & Astronomy, University of Glasgow, Glasgow G12 8QQ, UK
- Department of Laser Technologies, Center for Physical Sciences and Technology, LT-10257 Vilnius, Lithuania
| | | | - Ewan McGhee
- School of Physics & Astronomy, University of Glasgow, Glasgow G12 8QQ, UK
- Cancer Research UK, Beatson Institute, Glasgow, UK
| | | | | | - Daniele Faccio
- School of Physics & Astronomy, University of Glasgow, Glasgow G12 8QQ, UK
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Mendes de Almeida Junior A, Ferreira AS, Camacho SA, Gontijo Moreira L, de Toledo KA, Oliveira ON, Aoki PHB. Enhancing Phototoxicity in Human Colorectal Tumor Cells Through Nanoarchitectonics for Synergistic Photothermal and Photodynamic Therapies. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38652860 DOI: 10.1021/acsami.4c02247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Phototherapies are promising for noninvasive treatment of aggressive tumors, especially when combining heat induction and oxidative processes. Herein, we show enhanced phototoxicity of gold shell-isolated nanorods conjugated with toluidine blue-O (AuSHINRs@TBO) against human colorectal tumor cells (Caco-2) with synergic effects of photothermal (PTT) and photodynamic therapies (PDT). Mitochondrial metabolic activity tests (MTT) performed on Caco-2 cell cultures indicated a photothermal effect from AuSHINRs owing to enhanced light absorption from the localized surface plasmon resonance (LSPR). The phototoxicity against Caco-2 cells was further increased with AuSHINRs@TBO where oxidative processes, such as hydroperoxidation, were also present, leading to a cell viability reduction from 85.5 to 39.0%. The molecular-level mechanisms responsible for these effects were investigated on bioinspired tumor membranes using Langmuir monolayers of Caco-2 lipid extract. Polarization-modulation infrared reflection-absorption spectroscopy (PM-IRRAS) revealed that the AuSHINRs@TBO incorporation is due to attractive electrostatic interactions with negatively charged groups of the Caco-2 lipid extract, resulting in the expansion of surface pressure isotherms. Upon irradiation, Caco-2 lipid extract monolayers containing AuSHINRs@TBO (1:1 v/v) exhibited ca. 1.0% increase in surface area. This is attributed to the generation of reactive oxygen species (ROS) and their interaction with Caco-2 lipid extract monolayers, leading to hydroperoxide formation. The oxidative effects are facilitated by AuSHINRs@TBO penetration into the polar groups of the extract, allowing oxidative reactions with carbon chain unsaturations. These mechanisms are consistent with findings from confocal fluorescence microscopy, where the Caco-2 plasma membrane was the primary site of the cell death induction process.
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Affiliation(s)
| | - André Satoshi Ferreira
- School of Sciences, Humanities and Languages, São Paulo State University (UNESP), Assis, SP 19806-900, Brazil
| | - Sabrina Aléssio Camacho
- School of Sciences, Humanities and Languages, São Paulo State University (UNESP), Assis, SP 19806-900, Brazil
- São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, SP 13566-590, Brazil
| | - Lucas Gontijo Moreira
- School of Sciences, Humanities and Languages, São Paulo State University (UNESP), Assis, SP 19806-900, Brazil
| | - Karina Alves de Toledo
- School of Sciences, Humanities and Languages, São Paulo State University (UNESP), Assis, SP 19806-900, Brazil
| | - Osvaldo N Oliveira
- São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, SP 13566-590, Brazil
| | - Pedro Henrique Benites Aoki
- School of Sciences, Humanities and Languages, São Paulo State University (UNESP), Assis, SP 19806-900, Brazil
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7
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Badugu R, Blair S, Descrovi E, Lakowicz JR. Fluorophore Interactions with the Surface Modes and Internal Modes of a Photonic Crystal. OPTICAL MATERIALS 2024; 147:114718. [PMID: 38283740 PMCID: PMC10810413 DOI: 10.1016/j.optmat.2023.114718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
The metal-ligand complex tris(2,2'-bipyridine)ruthenium(II) chloride (Ru probe) displays a broad emission spectrum ranging from 540 to 730 nm. The emission spectra of Ru probe were measured when placed on top of a one-dimensional photonic crystal (1DPC), which supports both Bloch surface wave (BSW) and internal modes for wavelengths below 640 nm and only internal modes above 640 nm. The S-polarized emission spectra, with the electric vector parallel to the 1DPC surface, were found to be strongly dependent on the observation angle through the coupling prism. Also, the usual single broad-emission spectrum of Ru probe on glass was converted into two or more narrow-band-spectrum on the 1DPC, with emission band maxima dependent on the observation angle. The two S-polarized emission band peaks for Ru probe were found to be consistent with coupling to the BSW and first internal mode (IM1) of the 1DPC. The same spectral shifts and changes in emission maxima were observed by using Kretschmann and reverse Kretschmann illuminations. As the coupling requires the emitter to be in proximity with the photonic structure, we calculated near- and far-field distributions of a dipole directly located on the 1DPC surface. Finite-Difference Time-Domain (FDTD) simulations were performed to confirm fluorophore coupling to the BSW and internal modes (IMs). Both the measured and simulated results showed that IM coupled emission is significant. Coupling to the IM mode occurred at longer wavelengths where the 1DPC did not support a BSW. These results demonstrate that a simple Bragg grating, without a BSW mode, can be used for detection of surface-bound fluorophores.
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Affiliation(s)
- Ramachandram Badugu
- Center for Fluorescence Spectroscopy, Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, United States
| | - Steve Blair
- Department of Electrical and Computer Engineering, University of Utah, 50 South Central Campus Drive, Room 2110, Salt Lake City, UT 84112, United States
| | - Emiliano Descrovi
- Department of Applied Science and Technology, Polytechnic University of Turin, corso Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Joseph R Lakowicz
- Center for Fluorescence Spectroscopy, Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, United States
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Yasir Khan H, Tabassum S, Arjmand F. Preparation and characterization of ionic metal-based anticancer formulations of the type [bis-DACH tolfenamate metal {Co(II), Cu(II) and Zn(II)}] complexes: Binding studies with ct-DNA/tRNA, cleavage and cytotoxic activity against chemoresistant cancer cells. Inorganica Chim Acta 2023; 558:121725. [DOI: 10.1016/j.ica.2023.121725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
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9
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Bangle RE, Li H, Mikkelsen MH. Uncovering the Mechanisms of Triplet-Triplet Annihilation Upconversion Enhancement via Plasmonic Nanocavity Tuning. ACS NANO 2023. [PMID: 38014847 DOI: 10.1021/acsnano.3c08915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
The nonlinear conversion of photons from lower to higher energy is important for a wide range of applications, from quantum communications and optoelectronics to solar energy conversion and medicine. Triplet-triplet annihilation upconversion (TTA UC), which utilizes an absorber/emitter molecular pair, is a promising tool for upconversion applications requiring low intensity light such as photovoltaics, photocatalysis, and bioimaging. Despite demonstrations of efficient TTA UC in solution, practical applications have proven difficult, as thin films retard the necessary energy transfer steps and result in low emission yields. In this work, TTA UC emission from a thin film is greatly enhanced through integration into plasmonic nanogap cavities consisting of a silver mirror, a nanometer-scale polymer spacer containing a TTA molecular pair, and colloidally synthesized silver nanocubes. Mechanistic studies performed by varying the nanocube side length (45-150 nm) to tune the nanogap cavity resonance paired with simulations reveal absorption rate enhancement to be the primary operative mechanism in overall TTA UC emission enhancement. This absorption enhancement decreases the TTA UC threshold intensity by an order of magnitude and allows TTA UC emission to be excited with light up to 120 nm redder than the usable wavelength range for the control samples. Further, combined nanogap cavities composed of two distinct nanocube sizes result in surfaces which simultaneously enhance the absorption rate and emission rate. These dual-size nanogap cavities result in 45-fold TTA UC emission enhancement. In total, these studies present TTA UC emission enhancement, illustrate how the usable portion of the spectrum can be expanded for a given sensitizer-emitter pair, and develop both mechanistic understanding and design rules for TTA UC emission enhancement by plasmonic nanostructures.
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Affiliation(s)
- Rachel E Bangle
- Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Hengming Li
- Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Maiken H Mikkelsen
- Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27708, United States
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Semeniak D, Cruz DF, Chilkoti A, Mikkelsen MH. Plasmonic Fluorescence Enhancement in Diagnostics for Clinical Tests at Point-of-Care: A Review of Recent Technologies. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2107986. [PMID: 35332957 PMCID: PMC9986847 DOI: 10.1002/adma.202107986] [Citation(s) in RCA: 35] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 01/26/2022] [Indexed: 05/31/2023]
Abstract
Fluorescence-based biosensors have widely been used in the life-sciences and biomedical applications due to their low limit of detection and a diverse selection of fluorophores that enable simultaneous measurements of multiple biomarkers. Recent research effort has been made to implement fluorescent biosensors into the exploding field of point-of-care testing (POCT), which uses cost-effective strategies for rapid and affordable diagnostic testing. However, fluorescence-based assays often suffer from their feeble signal at low analyte concentrations, which often requires sophisticated, costly, and bulky instrumentation to maintain high detection sensitivity. Metal- and metal oxide-based nanostructures offer a simple solution to increase the output signal from fluorescent biosensors due to the generation of high field enhancements close to a metal or metal oxide surface, which has been shown to improve the excitation rate, quantum yield, photostability, and radiation pattern of fluorophores. This article provides an overview of existing biosensors that employ various strategies for fluorescence enhancement via nanostructures and have demonstrated the potential for use as POCT. Biosensors using nanostructures such as planar substrates, freestanding nanoparticles, and metal-dielectric-metal nanocavities are discussed with an emphasis placed on technologies that have shown promise towards POCT applications without the need for centralized laboratories.
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Affiliation(s)
- Daria Semeniak
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
| | - Daniela F. Cruz
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
| | - Maiken H. Mikkelsen
- Department of Electrical and Computer Engineering, Duke University, Durham, NC 27708, USA
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Nithyananda Kumar RS, Eerdekens M, de Coene Y, Nagaraja VS, Ahadzadeh S, Van Landeghem M, Verbiest T, Deferme W. Plasmon enhanced fluorescence from meticulously positioned gold nanoparticles, deposited by ultra sonic spray coating on organic light emitting diodes. NANOSCALE ADVANCES 2023; 5:1750-1759. [PMID: 36926570 PMCID: PMC10012836 DOI: 10.1039/d2na00753c] [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: 10/29/2022] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
Enhancement of the spontaneous emission of fluorophores aided by plasmonic nanoparticles (PNPs) prompts the growth of plasmonic organic light emitting diodes (OLEDs). Together with the spatial dependence of the fluorophore and PNPs on enhanced fluorescence, the surface coverage of the PNPs controls the charge transport in OLEDs. Hence, here, the spatial and surface coverage reliance of plasmonic gold nanoparticles is controlled by a roll-to-roll compatible ultrasonic spray coating technique. A 2-fold enhancement in the multi photon fluorescence is seen by two-photon fluorescence microscopy for a polystyrene sulfonate (PSS) stabilized gold nanoparticle located 10 nm away from the super yellow fluorophore. Fluorescence enhancement combined with ∼2% surface coverage of PNPs, provides a 33%, 20% and ∼40% increase in the electroluminescence, luminous efficacy and external quantum efficiency, respectively.
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Affiliation(s)
- Rachith Shanivarasanthe Nithyananda Kumar
- UHasselt - Hasselt University, Institute for Materials Research (IMO-IMOMEC) Agoralaan 1, Diepenbeek 3590 Belgium
- IMOMEC Division, IMEC Wetenschapspark 1, Diepenbeek 3590 Belgium
| | - Maarten Eerdekens
- Molecular Imaging and Photonics Celestijnenlaan 200D 3001 Leuven Belgium
| | - Yovan de Coene
- Molecular Imaging and Photonics Celestijnenlaan 200D 3001 Leuven Belgium
| | | | - Shabnam Ahadzadeh
- UHasselt - Hasselt University, Institute for Materials Research (IMO-IMOMEC) Agoralaan 1, Diepenbeek 3590 Belgium
- IMOMEC Division, IMEC Wetenschapspark 1, Diepenbeek 3590 Belgium
| | - Melissa Van Landeghem
- UHasselt - Hasselt University, Institute for Materials Research (IMO-IMOMEC) Agoralaan 1, Diepenbeek 3590 Belgium
- IMOMEC Division, IMEC Wetenschapspark 1, Diepenbeek 3590 Belgium
| | - Thierry Verbiest
- Molecular Imaging and Photonics Celestijnenlaan 200D 3001 Leuven Belgium
| | - Wim Deferme
- UHasselt - Hasselt University, Institute for Materials Research (IMO-IMOMEC) Agoralaan 1, Diepenbeek 3590 Belgium
- IMOMEC Division, IMEC Wetenschapspark 1, Diepenbeek 3590 Belgium
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12
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Lee S, Kang SH. Wavelength-Dependent Metal-Enhanced Fluorescence Biosensors via Resonance Energy Transfer Modulation. BIOSENSORS 2023; 13:376. [PMID: 36979588 PMCID: PMC10046318 DOI: 10.3390/bios13030376] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/10/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
Fluorescence can be enhanced or quenched depending on the distance between the surface of a metal nanoparticle and the fluorophore molecule. Fluorescence enhancement by nearby metal particles is called metal-enhanced fluorescence (MEF). MEF shows promising potential in the field of fluorescence-based biological sensing. MEF-based biosensor systems generally fall into two platform categories: (1) a two/three-dimensional scaffold, or (2) a colloidal suspension. This review briefly summarizes the application studies using wavelength-dependent carbon dots (UV-VIS), noble metals (VIS), and upconversion nanoparticles (NIR to VIS), representative nanomaterials that contribute to the enhancement of fluorescence through the resonance energy transfer modulation and then presents a perspective on this topic.
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13
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Recent advances in plasmon-enhanced luminescence for biosensing and bioimaging. Anal Chim Acta 2023; 1254:341086. [PMID: 37005018 DOI: 10.1016/j.aca.2023.341086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 03/10/2023] [Accepted: 03/11/2023] [Indexed: 03/16/2023]
Abstract
Plasmon-enhanced luminescence (PEL) is a unique photophysical phenomenon in which the interaction between luminescent moieties and metal nanostructures results in a marked luminescence enhancement. PEL offers several advantages and has been extensively used to design robust biosensing platforms for luminescence-based detection and diagnostics applications, as well as for the development of many efficient bioimaging platforms, enabling high-contrast non-invasive real-time optical imaging of biological tissues, cells, and organelles with high spatial and temporal resolution. This review summarizes recent progress in the development of various PEL-based biosensors and bioimaging platforms for diverse biological and biomedical applications. Specifically, we comprehensively assessed rationally designed PEL-based biosensors that can efficiently detect biomarkers (proteins and nucleic acids) in point-of-care tests, highlighting significant improvements in the sensing performance upon the integration of PEL. In addition to discussing the merits and demerits of recently developed PEL-based biosensors on substrates or in solutions, we include a brief discussion on integrating PEL-based biosensing platforms into microfluidic devices as a promising multi-responsive detection method. The review also presents comprehensive details about the recent advances in the development of various PEL-based multi-functional (passive targeting, active targeting, and stimuli-responsive) bioimaging probes, highlighting the scope of future improvements in devising robust PEL-based nanosystems to achieve more effective diagnostic and therapeutic insights by enabling imaging-guided therapy.
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Bhaskar S. Biosensing Technologies: A Focus Review on Recent Advancements in Surface Plasmon Coupled Emission. MICROMACHINES 2023; 14:mi14030574. [PMID: 36984981 PMCID: PMC10054051 DOI: 10.3390/mi14030574] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/23/2023] [Accepted: 02/26/2023] [Indexed: 05/14/2023]
Abstract
In the past decade, novel nano-engineering protocols have been actively synergized with fluorescence spectroscopic techniques to yield higher intensity from radiating dipoles, through the process termed plasmon-enhanced fluorescence (PEF). Consequently, the limit of detection of analytes of interest has been dramatically improvised on account of higher sensitivity rendered by augmented fluorescence signals. Recently, metallic thin films sustaining surface plasmon polaritons (SPPs) have been creatively hybridized with such PEF platforms to realize a substantial upsurge in the global collection efficiency in a judicious technology termed surface plasmon-coupled emission (SPCE). While the process parameters and conditions to realize optimum coupling efficiency between the radiating dipoles and the plasmon polaritons in SPCE framework have been extensively discussed, the utility of disruptive nano-engineering over the SPCE platform and analogous interfaces such as 'ferroplasmon-on-mirror (FPoM)' as well as an alternative technology termed 'photonic crystal-coupled emission (PCCE)' have been seldom reviewed. In light of these observations, in this focus review, the myriad nano-engineering protocols developed over the SPCE, FPoM and PCCE platform are succinctly captured, presenting an emphasis on the recently developed cryosoret nano-assembly technology for photo-plasmonic hotspot generation (first to fourth). These technologies and associated sensing platforms are expected to ameliorate the current biosensing modalities with better understanding of the biophysicochemical processes and related outcomes at advanced micro-nano-interfaces. This review is hence envisaged to present a broad overview of the latest developments in SPCE substrate design and development for interdisciplinary applications that are of relevance in environmental as well as biological heath monitoring.
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Affiliation(s)
- Seemesh Bhaskar
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory (HMNTL), University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA;
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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15
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Phthalocyanine photosensitizers with bathochromic shift, of suitable brightness, capable of producing singlet oxygen with effective efficiency. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Tang L, Liao C, Guo Y, Zhang Y. Controllable Preparation of Ag-SiO 2 Composite Nanoparticles and Their Applications in Fluorescence Enhancement. MATERIALS (BASEL, SWITZERLAND) 2022; 16:201. [PMID: 36614539 PMCID: PMC9821964 DOI: 10.3390/ma16010201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/08/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Metal nanoparticles have attracted a great deal of interest due to their unique properties of surface plasmon resonance. Metal nanoparticles can enhance the fluorescence emission intensity of quantum dots (QDs) through the local surface plasmon resonance effect, which is mainly determined by the distance between them. Therefore, it is very important to achieve controllable distance between metal and QDs, and study fluorescence enhancement. In this work, the controllable adjustment of the distance between metal nanoparticles and QDs was successfully realized by controlling the thickness of the SiO2 shell of Ag@SiO2 nanoparticles. Firstly, Ag nanoparticles with uniform size distribution and relatively high concentration were prepared, and then the thickness of the SiO2 shell was controlled by controlling the amount of tetra-ethyl orthosilicate (TEOS) in the hydrolysis of TEOS reaction. (3-aminopropyl) triethoxysilane (APS) was used to connect CdS/ZnS QDs with Ag@SiO2 nanoparticles to form Ag@SiO2@CdS/ZnS QD composite nanoparticles. The fluorescence spectra shows that the fluorescence intensity of the Ag@SiO2@CdS/ZnS QD composite nanoparticles is significantly enhanced. Photoexcitation spectra and fluorescence spectra of CdS/ZnS QD and Ag@SiO2@CdS/ZnS QD composite nanoparticles, measured under different energy excitation conditions, indicate that the existence of Ag nanoparticles can enhance the fluorescence intensity of CdS/ZnS QDs. Finally, a further physical mechanism of fluorescence enhancement is revealed.
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Affiliation(s)
- Luping Tang
- College of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China
- SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education, Southeast University, Nanjing 210096, China
| | - Chen Liao
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Yingqing Guo
- College of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yangyang Zhang
- College of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China
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17
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Angelini M, Manobianco E, Pellacani P, Floris F, Marabelli F. Plasmonic Modes and Fluorescence Enhancement Coupling Mechanism: A Case with a Nanostructured Grating. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4339. [PMID: 36500962 PMCID: PMC9736283 DOI: 10.3390/nano12234339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
The recent development and technological improvement in dealing with plasmonic metasurfaces has triggered a series of interesting applications related to sensing challenges. Fluorescence has been one of the most studied tools within such a context. With this in mind, we used some well characterized structures supporting plasmonic resonances to study their influence on the emission efficiency of a fluorophore. An extended optical analysis and a complementary investigation through finite-difference time-domain (FDTD) simulations have been combined to understand the coupling mechanism between the excitation of plasmonic modes and the fluorescence absorption and emission processes. The results provide evidence of the spectral shape dependence of fluorescence on the plasmonic field distribution together with a further relationship connected with the enhancement of its signal. It has made evident that the spectral region characterized by the largest relative enhancement closely corresponds to the strongest signatures of the plasmonic modes, as described by both the optical measurements and the FDTD findings.
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Affiliation(s)
| | | | - Paola Pellacani
- Plasmore S.r.l, Via Vittorio Emanuele II 4, 27100 Pavia, Italy
| | - Francesco Floris
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
| | - Franco Marabelli
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
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18
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Novitsky DV, Gaponenko SV. Photon density of states effect on Lamb shift in plasmas. DOKLADY OF THE NATIONAL ACADEMY OF SCIENCES OF BELARUS 2022. [DOI: 10.29235/1561-8323-2022-66-5-495-500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A possible effect of the low photon density of states in plasma on the Lamb shift is analysed. It is found that because of a significant contribution of high-energy virtual photons to the Lamb shift, its modification in plasma does not exceed 1 % with respect to vacuum even at electron concentrations as high as 1022 cm–3. This behavior results from an asymptotic tendency of plasma properties to vacuum ones at an unlimited frequency growth.
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Affiliation(s)
- D. V. Novitsky
- B. I. Stepanov Institute of Physics of the
National Academy of Sciences of Belarus
| | - S. V. Gaponenko
- B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
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19
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Salman BI, Eltoukhi WE, Hassan YF. Applicability of Silver Nanoparticles as a Fluorescent Precursor for the Determination of Spectinomycin Hydrochloride in Human Plasma. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822110107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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20
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Cai Y, Liu Y, Luo X, Lee Y, Tan K, Chen I. Multilayers of avidin–biotin complexes as spacers used in the study of the effect of metal‐enhanced fluorescence. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- You‐Ru Cai
- Department of Chemistry National Tsing Hua University Hsinchu Taiwan, Republic of China
| | - Yi‐Ting Liu
- Department of Chemistry National Tsing Hua University Hsinchu Taiwan, Republic of China
| | - Xue‐Feng Luo
- Department of Chemistry National Tsing Hua University Hsinchu Taiwan, Republic of China
| | - Yin‐Yu Lee
- National Synchrotron Radiation Research Center Hsinchu Taiwan, Republic of China
| | - Kui‐Thong Tan
- Department of Chemistry National Tsing Hua University Hsinchu Taiwan, Republic of China
| | - I‐Chia Chen
- Department of Chemistry National Tsing Hua University Hsinchu Taiwan, Republic of China
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21
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Puji Pamungkas KK, Maruyama T, Murai T. 5- N-Arylaminothiazoles with pyridyl groups and their first-row transition metal complexes: synthesis, photophysical properties, and Zn sensing. RSC Adv 2022; 12:14698-14706. [PMID: 35702202 PMCID: PMC9109715 DOI: 10.1039/d2ra01694j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/09/2022] [Indexed: 12/02/2022] Open
Abstract
A series of 5-N-arylaminothiazoles were synthesized with facile diversity-oriented synthesis from readily available starting materials via the reaction of thioamide dianions and thioformamides. The introduction of various substituents at the 2-position of a thiazole ring (i.e., 2-pyridyl, 4-methylpyridyl, and phenyl groups) and on the nitrogen atom (i.e., p-tolyl and phenyl groups) significantly influenced the absorption and emission spectra of the isolated compounds. X-ray analysis confirmed that the substituents at the amino site were twisted from a thiazole ring, while the formation of its nickel complex showed dinuclear metal complexes bridged with chlorine atoms. Moreover, the formation of zinc-thiazole complexes showed enhanced emission properties in solution and noticeable emission in a solid state. In addition, thiazole-bridged dypyrromethene type ligands showed high selectivity toward Zn+2, which make them good candidates for zinc sensing.
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Affiliation(s)
- Khurnia Krisna Puji Pamungkas
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University Yanagido Gifu 501-1193 Japan
| | - Toshifumi Maruyama
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University Yanagido Gifu 501-1193 Japan
| | - Toshiaki Murai
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University Yanagido Gifu 501-1193 Japan
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22
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Spectral Dependence of the Energy Transfer from Photosynthetic Complexes to Monolayer Graphene. Int J Mol Sci 2022; 23:ijms23073493. [PMID: 35408853 PMCID: PMC8998970 DOI: 10.3390/ijms23073493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 11/16/2022] Open
Abstract
Fluorescence excitation spectroscopy at cryogenic temperatures carried out on hybrid assemblies composed of photosynthetic complexes deposited on a monolayer graphene revealed that the efficiency of energy transfer to graphene strongly depended on the excitation wavelength. The efficiency of this energy transfer was greatly enhanced in the blue-green spectral region. We observed clear resonance-like behavior for both a simple light-harvesting antenna containing only two chlorophyll molecules (PCP) and a large photochemically active reaction center associated with the light-harvesting antenna (PSI-LHCI), which pointed towards the general character of this effect.
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23
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Zhong K, Yu W, de Coene Y, Yamada A, Krylychkina O, Jooken S, Deschaume O, Bartic C, Clays K. Dual photonic bandgap hollow sphere colloidal photonic crystals for real-time fluorescence enhancement in living cells. Biosens Bioelectron 2021; 194:113577. [PMID: 34481238 DOI: 10.1016/j.bios.2021.113577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/30/2021] [Accepted: 08/19/2021] [Indexed: 10/20/2022]
Abstract
To overcome the problems of refractive index matching and increased disorder when working with traditional heterostructure colloidal photonic crystals (CPCs) with dual or multiple photonic bandgaps (PBGs) for fluorescence enhancement in water, we propose the use of a chemical heterostructure in hollow sphere CPCs (HSCPCs). A partial chemical modification of the HSCPC creates a large contrast in wettability to induce the heterostructure, while the hollow spheres increase the refractive index difference when used in aqueous environment. With the platform, fluorescence enhancement reaches around 160 times in solution, and 72 times (signal-to-background ratio ~7 times) in cells during proof-of-concept live cardiomyocyte contractility experiments. Such photonic platform can be further exploited for chemical sensing, bioassays, and environmental monitoring. Moreover, the introduction of chemical heterostructures provides new design principles for functionalized photonic devices.
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Affiliation(s)
- Kuo Zhong
- Laboratory for Molecular Electronics and Photonics, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium.
| | - Wei Yu
- Laboratory of Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
| | - Yovan de Coene
- Laboratory for Molecular Electronics and Photonics, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
| | - Atsushi Yamada
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | | | - Stijn Jooken
- Laboratory of Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
| | - Olivier Deschaume
- Laboratory of Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
| | - Carmen Bartic
- Laboratory of Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
| | - Koen Clays
- Laboratory for Molecular Electronics and Photonics, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium.
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24
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Ferreira-Gonçalves T, Ferreira D, Ferreira HA, Reis CP. Nanogold-based materials in medicine: from their origins to their future. Nanomedicine (Lond) 2021; 16:2695-2723. [PMID: 34879741 DOI: 10.2217/nnm-2021-0265] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The properties of gold-based materials have been explored for centuries in several research fields, including medicine. Multiple published production methods for gold nanoparticles (AuNPs) have shown that the physicochemical and optical properties of AuNPs depend on the production method used. These different AuNP properties have allowed exploration of their usefulness in countless distinct biomedical applications over the last few years. Here we present an extensive overview of the most commonly used AuNP production methods, the resulting distinct properties of the AuNPs and the potential application of these AuNPs in diagnostic and therapeutic approaches in biomedicine.
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Affiliation(s)
- Tânia Ferreira-Gonçalves
- Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health Technologies (DFFTS), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, Lisboa, 1649-003, Portugal
| | - David Ferreira
- Comprehensive Health Research Centre (CHRC), Departamento de Desporto e Saúde, Escola de Saúde e Desenvolvimento Humano, Universidade de Évora, Largo dos Colegiais, Évora, 7000, Portugal
| | - Hugo A Ferreira
- Instituto de Biofísica e Engenharia Biomédica (IBEB), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016, Portugal
| | - Catarina P Reis
- Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health Technologies (DFFTS), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, Lisboa, 1649-003, Portugal.,Instituto de Biofísica e Engenharia Biomédica (IBEB), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, 1749-016, Portugal
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25
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Fayed AS, Youssif RM, Salama NN, Elzanfaly ES, Hendawy HAM. Utility of Silver-nanoparticles for Nano Spectrofluorimetric Determination of Meropenem and Ertapenem: Bio-analytical Validation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 262:120077. [PMID: 34175763 DOI: 10.1016/j.saa.2021.120077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 06/04/2021] [Accepted: 06/09/2021] [Indexed: 06/13/2023]
Abstract
Bio-analytical, nano-quantitative spectrofluorimetric estimation of two non-classical β-lactam antibiotics; meropenem (MP) and ertapenem (EP) is presented. The method is based on the enhancement of the fluorescence intensity of MP-Eu3+/EP-Eu3+ with silver nanoparticles (AgNPs). AgNPs were synthesized and characterized by UV and transmission electron microscope (TEM). The plasmon resonance produced an intense absorption maximum at 398.0 nm. TEM micrograph showed the particle morphology with an average particles size of 13.0 ± 2.95 nm. The fluorescence intensities were measured against blank reagents at λem of 396.0 nm and 405.0 nm after excitation at λex 305.0 nm and 303.0 nm for MP and EP, respectively. Under optimum conditions, the relative fluorescence intensity showed a good linear relationship with the concentration ranges of 4.0-14.0 and 4.0 -12.0 ng/mL with excellent correlation coefficients of 0.9998 and 0.9997, and limit of detection of 0.84 and 0.86 ng/mL for MP and EP, respectively. The method was successfully applied for direct analysis of MP and EP in their drug substances and pharmaceutical vials. The significant, sensitivity and practicality of the method facilitated MP detection in real plasma samples. Bio-analytical validation was performed according to FDA. The method was rectilinear over the ranges of, 5.0 -75.0 μg/mL plasma. Interestingly, this described system has a promising benefit for various applications exploiting the dramatically enhanced-fluorescence occurrence.
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Affiliation(s)
- Ahmed S Fayed
- Department of Analytical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., 11562 Cairo, Egypt
| | - Rania M Youssif
- Pharmaceutical Chemistry Department, National Organization for Drug Control and Research (NODCAR), 6 Abu Hazem St., Pyramids Ave 29, Cairo, Egypt
| | - Nahla N Salama
- Pharmaceutical Chemistry Department, National Organization for Drug Control and Research (NODCAR), 6 Abu Hazem St., Pyramids Ave 29, Cairo, Egypt.
| | - Eman S Elzanfaly
- Department of Analytical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., 11562 Cairo, Egypt
| | - Hassan A M Hendawy
- Pharmaceutical Chemistry Department, National Organization for Drug Control and Research (NODCAR), 6 Abu Hazem St., Pyramids Ave 29, Cairo, Egypt
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26
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Enhancing fluorescence and lowering the optical gap through C P doping of a π-conjugated molecular backbone: A computational-based design approach. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2021. [DOI: 10.1016/j.jpap.2021.100089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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27
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Nazemi M, Panikkanvalappil SR, Liao CK, Mahmoud MA, El-Sayed MA. Role of Femtosecond Pulsed Laser-Induced Atomic Redistribution in Bimetallic Au-Pd Nanorods on Optoelectronic and Catalytic Properties. ACS NANO 2021; 15:10241-10252. [PMID: 34032116 DOI: 10.1021/acsnano.1c02347] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Utilizing solar energy for chemical transformations has attracted a growing interest in promoting the clean and modular chemical synthesis approach and addressing the limitations of conventional thermocatalytic systems. Under light irradiation, noble metal nanoparticles, particularly those characterized by localized surface plasmon resonance, commonly known as plasmonic nanoparticles, generate a strong electromagnetic field, excited hot carriers, and photothermal heating. Plasmonic nanoparticles enabling efficient absorption of light in the visible range have moderate catalytic activities. However, the catalytic performance of a plasmonic nanoparticle can be significantly enhanced by incorporating a highly catalytically active metal domain onto its surface. In this study, we demonstrate that femtosecond laser-induced atomic redistribution of metal domains in bimetallic Au-Pd nanorods (NRs) can enhance its photocurrent response by 2-fold compared to parent Au-Pd NRs. We induce structure changes on Au-Pd NRs by irradiating them with a femtosecond pulsed laser at 808 nm to precisely redistribute Pd atoms on AuNR surfaces, resulting in modified electronic and optical properties and, thereby, enhanced catalytic activity. We also investigate the trade-off between the effect of light absorption and catalytic activity by optimizing the structure and composition of bimetallic Au-Pd nanoparticles. This work provides insight into the design of hybrid plasmonic-catalytic nanostructures with well-tailored geometry, composition, and structure for solar-fuel-based applications.
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Affiliation(s)
- Mohammadreza Nazemi
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Sajanlal R Panikkanvalappil
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02210, United States
| | - Chih-Kai Liao
- Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Mahmoud A Mahmoud
- Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Mostafa A El-Sayed
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
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28
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Li ES, Saha MS. Optimizing Calcium Detection Methods in Animal Systems: A Sandbox for Synthetic Biology. Biomolecules 2021; 11:343. [PMID: 33668387 PMCID: PMC7996158 DOI: 10.3390/biom11030343] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/19/2021] [Accepted: 02/21/2021] [Indexed: 12/16/2022] Open
Abstract
Since the 1970s, the emergence and expansion of novel methods for calcium ion (Ca2+) detection have found diverse applications in vitro and in vivo across a series of model animal systems. Matched with advances in fluorescence imaging techniques, the improvements in the functional range and stability of various calcium indicators have significantly enhanced more accurate study of intracellular Ca2+ dynamics and its effects on cell signaling, growth, differentiation, and regulation. Nonetheless, the current limitations broadly presented by organic calcium dyes, genetically encoded calcium indicators, and calcium-responsive nanoparticles suggest a potential path toward more rapid optimization by taking advantage of a synthetic biology approach. This engineering-oriented discipline applies principles of modularity and standardization to redesign and interrogate endogenous biological systems. This review will elucidate how novel synthetic biology technologies constructed for eukaryotic systems can offer a promising toolkit for interfacing with calcium signaling and overcoming barriers in order to accelerate the process of Ca2+ detection optimization.
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Affiliation(s)
| | - Margaret S. Saha
- Department of Biology, College of William and Mary, Williamsburg, VA 23185, USA;
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29
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Szczepańska E, Synak A, Bojarski P, Niedziałkowski P, Wcisło A, Ossowski T, Grobelna B. Dansyl-Labelled Ag@SiO 2 Core-Shell Nanostructures-Synthesis, Characterization, and Metal-Enhanced Fluorescence. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E5168. [PMID: 33207805 PMCID: PMC7697960 DOI: 10.3390/ma13225168] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/06/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023]
Abstract
The present work describes synthesis, characterization, and use of a new dansyl-labelled Ag@SiO2 nanocomposite as an element of a new plasmonic platform to enhance the fluorescence intensity. Keeping in mind that typical surface plasmon resonance (SPR) characteristics of silver nanoparticles coincide well enough with the absorption of dansyl molecules, we used them to build the core of the nanocomposite. Moreover, we utilized 10 nm amino-functionalized silica shell as a separator between silver nanoparticles and the dansyl dye to prevent the dye-to-metal energy transfer. The dansyl group was incorporated into Ag@SiO2 core-shell nanostructures by the reaction of aminopropyltrimethoxysilane with dansyl chloride and we characterized the new dansyl-labelled Ag@SiO2 nanocomposite using transmission electron microscopy (TEM) and Fourier-transform infrared spectroscopy (FTIR). Additionally, water wettability measurements (WWM) were carried out to assess the hydrophobicity and hydrophilicity of the studied surface. We found that the nanocomposite deposited on a semitransparent silver mirror strongly increased the fluorescence intensity of dansyl dye (about 87-fold) compared with the control sample on the glass, proving that the system is a perfect candidate for a sensitive plasmonic platform.
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Affiliation(s)
- Elżbieta Szczepańska
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdańsk, Poland; (E.S.); (P.N.); (A.W.); (T.O.)
| | - Anna Synak
- Faculty of Mathematics, Physics and Informatics, University of Gdansk, Wita Stwosza 57, 80-308 Gdańsk, Poland;
| | - Piotr Bojarski
- Faculty of Mathematics, Physics and Informatics, University of Gdansk, Wita Stwosza 57, 80-308 Gdańsk, Poland;
| | - Paweł Niedziałkowski
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdańsk, Poland; (E.S.); (P.N.); (A.W.); (T.O.)
| | - Anna Wcisło
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdańsk, Poland; (E.S.); (P.N.); (A.W.); (T.O.)
| | - Tadeusz Ossowski
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdańsk, Poland; (E.S.); (P.N.); (A.W.); (T.O.)
| | - Beata Grobelna
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdańsk, Poland; (E.S.); (P.N.); (A.W.); (T.O.)
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30
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Wang H, Shan D, Xu L. Investigation of plasmon-induced extraction efficiency enhancement in a CdTe-based LED using FDTD simulation. LUMINESCENCE 2020; 36:860-864. [PMID: 33179434 DOI: 10.1002/bio.3984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/28/2020] [Accepted: 11/05/2020] [Indexed: 11/08/2022]
Abstract
Light-emitting diodes (LED) based on silicon platforms and CdTe quantum dots (QDs) are an important area of research. Due to poor charge balance in QD layers, reduced graphene oxide (RGO) was introduced between the P-Si substrate and CdTe QDs. To further improve the performance of the QDs-LED, Au nanorods (NRs) were incorporated into the hole transport layer. A finite-difference time-domain simulation was used to discuss theoretically the influence of RGO and Au NRs on the LED performance, and investigate the influence of substrate on the localized surface plasmon resonance (LSPR) coupling wavelength. Simulated results demonstrated that the LSPR peaks for Au NRs red shifted with increase in substrate refractive index, and the electric field along the x-y plane was mostly concentrated near the interface. RGO incorporation enhanced the emission of the QDs-LED. This may be attributed to improvement in conductivity and hole mobility in the hole transport layer and reduction in the energy barrier for injection of holes. After introduction of Au NRs, there was a significant enhancement in emission, and light extraction efficiency was enhanced about 10-fold.
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Affiliation(s)
- HongYu Wang
- Tongda College, Nanjing University of Posts and Telecommunications, Nanjing, China.,National Laboratory of Solid State Microstructure and School of Electronic Science and Engineering, Nanjing University, Nanjing, China
| | - Dan Shan
- National Laboratory of Solid State Microstructure and School of Electronic Science and Engineering, Nanjing University, Nanjing, China.,School of Electronic and Information Engineering, Yangzhou Polytechnic Institute, Yangzhou, China
| | - Ling Xu
- National Laboratory of Solid State Microstructure and School of Electronic Science and Engineering, Nanjing University, Nanjing, China
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31
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Sultangaziyev A, Bukasov R. Review: Applications of surface-enhanced fluorescence (SEF) spectroscopy in bio-detection and biosensing. SENSING AND BIO-SENSING RESEARCH 2020; 30:100382. [PMID: 33101976 PMCID: PMC7566769 DOI: 10.1016/j.sbsr.2020.100382] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 10/09/2020] [Accepted: 10/14/2020] [Indexed: 12/05/2022] Open
Abstract
Surface-enhanced fluorescence (SEF) is rapidly becoming one of the main spectroscopic techniques for the detection of a variety of biomolecules and biomarkers. The main reasons for this trend are the high sensitivity and selectivity, robustness, and speed of this analytical method. Each year, the number of applications that utilize this phenomenon increases and with each such work, the complexity and novelty of the used substrates, procedures, and analytes rises. To obtain a clearer view of this phenomenon and research area, we decided to combine 76 valuable research articles from a variety of different research groups into this mini-review. We present and describe these works concisely and clearly, with a particular interest in the quantitative parameters of the experiment. These sources are classified according to the nature of the analyte, on the contrary to most reviews, which sort them by substrate nature. This point of view gives us insight into the development of this research area and the consequent increase in the complexity of the analyte nature. Moreover, this type of sorting can show possible future routes for the expansion of this research area. Along with the analytes, we can also pay attention to the substrates used for each situation and how the development of substrates affects the direction of research and subsequently, the choice of an analyte. About 108 sources and several interesting trends in the SEF research area over the past 25 years are discussed in this mini-review.
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Affiliation(s)
| | - Rostislav Bukasov
- Chemistry Department, SSH, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
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32
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Sulowska K, Wiwatowski K, Ćwierzona M, Niedziółka-Jönsson J, Maćkowski S. Real-time fluorescence sensing of single photoactive proteins using silver nanowires. Methods Appl Fluoresc 2020; 8:045004. [PMID: 33021212 DOI: 10.1088/2050-6120/aba7cb] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We demonstrate that single functionalized silver nanowires form a geometric platform suitable for efficient real-time detection of single photoactive proteins. By collecting series of images using wide-field fluorescence microscopy, events of single protein attachment can be distinguished with the signal to noise ratio further improved by fluorescence enhancement due to plasmon excitations in the nanowires. The enhancement is evidenced by strong shortening of the fluorescence decay of single photoactive proteins conjugated to the silver nanowires.
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Affiliation(s)
- Karolina Sulowska
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland
| | - Kamil Wiwatowski
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland
| | - Maciej Ćwierzona
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland
| | - Joanna Niedziółka-Jönsson
- Institute of Physical Chemistry Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Sebastian Maćkowski
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland.,Baltic Institute of Technology, Al. Zwycięstwa 96/98, 81-451 Gdynia, Poland
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33
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Sang Y, Han J, Zhao T, Duan P, Liu M. Circularly Polarized Luminescence in Nanoassemblies: Generation, Amplification, and Application. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1900110. [PMID: 31394014 DOI: 10.1002/adma.201900110] [Citation(s) in RCA: 423] [Impact Index Per Article: 105.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 05/13/2019] [Indexed: 05/22/2023]
Abstract
Currently, the development of circularly polarized luminescent (CPL) materials has drawn extensive attention due to the numerous potential applications in optical data storage, displays, backlights in 3D displays, and so on. While the fabrication of CPL-active materials generally requires chiral luminescent molecules, the introduction of the "self-assembly" concept offers a new perspective in obtaining the CPL-active materials. Following this approach, various self-assembled materials, including organic-, inorganic-, and hybrid systems can be endowed with CPL properties. Benefiting from the advantages of self-assembly, not only chiral molecules, but also achiral species, as well as inorganic nanoparticles have potential to be self-assembled into chiral nanoassemblies showing CPL activity. In addition, the dissymmetry factor, an important parameter of CPL materials, can be enhanced through various pathways of self-assembly. Here, the present status and progress of self-assembled nanomaterials with CPL activity are reviewed. An overview of the key factors in regulating chiral emission materials at the supramolecular level will largely boost their application in multidisciplinary fields.
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Affiliation(s)
- Yutao Sang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 ZhongGuanCun BeiYiJie, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jianlei Han
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, Division of Nanophotonics, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China
| | - Tonghan Zhao
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, Division of Nanophotonics, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China
| | - Pengfei Duan
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, Division of Nanophotonics, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 ZhongGuanCun BeiYiJie, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, Division of Nanophotonics, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing, 100190, P. R. China
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Beldjoudi Y, Atilgan A, Weber JA, Roy I, Young RM, Yu J, Deria P, Enciso AE, Wasielewski MR, Hupp JT, Stoddart JF. Supramolecular Porous Organic Nanocomposites for Heterogeneous Photocatalysis of a Sulfur Mustard Simulant. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001592. [PMID: 32602131 DOI: 10.1002/adma.202001592] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 06/01/2020] [Indexed: 06/11/2023]
Abstract
Efficient heterogeneous photosensitizing materials require both large accessible surface areas and excitons of suitable energies and with well-defined spin structures. Confinement of the tetracationic cyclophane (ExBox4+ ) within a nonporous anionic polystyrene sulfonate (PSS) matrix leads to a surface area increase of up to 225 m2 g-1 in ExBox•PSS. Efficient intersystem crossing is achieved by combining the spin-orbit coupling associated to Br heavy atoms in 1,3,5,8-tetrabromopyrene (TBP), and the photoinduced electron transfer in a TBP⊂ExBox4+ supramolecular dyad. The TBP⊂ExBox4+ complex displays a charge transfer band at 450 nm and an exciplex emission at 520 nm, indicating the formation of new mixed-electronic states. The lowest triplet state (T1 , 1.89 eV) is localized on the TBP and is close in energy with the charge separated state (CT, 2.14 eV). The homogeneous and heterogeneous photocatalytic activities of the TBP⊂ExBox4+ , for the elimination of a sulfur mustard simulant, has proved to be significantly more efficient than TBP and ExBox+4 , confirming the importance of the newly formed excited-state manifold in TBP⊂ExBox4+ for the population of the low-lying T1 state. The high stability, facile preparation, and high performance of the TBP⊂ExBox•PSS nanocomposites augur well for the future development of new supramolecular heterogeneous photosensitizers using host-guest chemistry.
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Affiliation(s)
- Yassine Beldjoudi
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Ahmet Atilgan
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Jacob A Weber
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Indranil Roy
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Ryan M Young
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Institute for Sustainability and Energy, Northwestern University, Evanston, IL, 60208, USA
| | - Jierui Yu
- Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, IL, 62901, USA
| | - Pravas Deria
- Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, IL, 62901, USA
| | - Alan E Enciso
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Michael R Wasielewski
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Institute for Sustainability and Energy, Northwestern University, Evanston, IL, 60208, USA
| | - Joseph T Hupp
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Institute for Molecular Design and Synthesis, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, China
- School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
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35
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Patel J, Jain B, Singh AK, Susan MABH, Jean-Paul L. Mn-Doped ZnS Quantum dots–An Effective Nanoscale Sensor. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104755] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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36
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Cai Q, Gan W, Falin A, Watanabe K, Taniguchi T, Zhuang J, Hao W, Huang S, Tao T, Chen Y, Li LH. Two-Dimensional Van der Waals Heterostructures for Synergistically Improved Surface-Enhanced Raman Spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21985-21991. [PMID: 32319287 DOI: 10.1021/acsami.0c01157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is a precise and noninvasive analytical technique that is widely used in chemical analysis, environmental protection, food processing, pharmaceutics, and diagnostic biology. However, it is still a challenge to produce highly sensitive and reusable SERS substrates with a minimum fluorescence background. In this work, we propose the use of van der Waals heterostructures of two-dimensional materials to cover plasmonic metal nanoparticles to solve this challenge. The heterostructures of atomically thin boron nitride (BN) and graphene provide synergistic effects: (1) electrons could tunnel through the atomically thin BN, allowing the charge transfer between graphene and probe molecules to suppress the fluorescence background; (2) the SERS sensitivity is enhanced by graphene via a chemical enhancement mechanism in addition to an electromagnetic field mechanism; and (3) the atomically thin BN protects the underlying graphene and Ag nanoparticles from oxidation during heating for regeneration at 360 °C in the air so that the SERS substrates could be reused. These advances will facilitate wider applications of SERS especially on the detection of fluorescent molecules with higher sensitivity.
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Affiliation(s)
- Qiran Cai
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Waurn Ponds, Victoria 3216, Australia
| | - Wei Gan
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Waurn Ponds, Victoria 3216, Australia
| | - Alexey Falin
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Waurn Ponds, Victoria 3216, Australia
- Dongguan South China Design Innovation Institute, Dongguan 523808, China
| | - Kenji Watanabe
- National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Takashi Taniguchi
- National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Jincheng Zhuang
- BUAA-UOW Joint Research Centre and School of Physics, Beihang University, Beijing 100191, China
| | - Weichang Hao
- BUAA-UOW Joint Research Centre and School of Physics, Beihang University, Beijing 100191, China
| | - Shaoming Huang
- Guangzhou Key Laboratory of Low Dimensional Materials & Energy Storage Devices, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Tao Tao
- Dongguan South China Design Innovation Institute, Dongguan 523808, China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Ying Chen
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Waurn Ponds, Victoria 3216, Australia
| | - Lu Hua Li
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Waurn Ponds, Victoria 3216, Australia
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37
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Magnetron-sputtered Polytetrafluoroethylene-stabilized Silver Nanoisland Surface for Surface-Enhanced Fluorescence. NANOMATERIALS 2020; 10:nano10040773. [PMID: 32316367 PMCID: PMC7221687 DOI: 10.3390/nano10040773] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 01/22/2023]
Abstract
Surface-enhanced fluorescence (SEF) requires the absorption/emission band of the fluorophore, the localized surface plasmon resonance (LSPR) of the nanostructure and the excitation wavelength to fall in the same (or very close) spectral range. In this paper, we monitor the SEF intensity and lifetime dependence of riboflavin (vitamin B2) adsorbed on a spacer-modified Ag substrate with respect to the thickness of the spacer. The substrates were formed by silver nanoislands deposited onto magnetron-sputtered polytetrafluoroethylene (ms-PTFE). The spacer was formed by the ms-PTFE layer with the thickness ranging from ~5 to 25 nm. The riboflavin dissolved in dimethylsulfoxide (DMSO) at a 10 µM concentration forms, at the ms-PTFE surface, a homogeneous layer of adsorbed molecules corresponding to a monomolecular layer. The microspectroscopic measurements of the adsorbed layer were performed through a sessile droplet; our study has shown the advantages and limitations of this approach. Time-resolved fluorescence enabled us to determine the enhanced fluorescence quantum yield due to the shortening of the radiative decay in the vicinity of the plasmonic surface. For the 5 nm ms-PTFE layer possessing the largest (estimated 4×) fluorescence enhancement, the quantum yield was increased 2.3×.
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38
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Silver Island Film for Enhancing Light Harvesting in Natural Photosynthetic Proteins. Int J Mol Sci 2020; 21:ijms21072451. [PMID: 32244795 PMCID: PMC7177865 DOI: 10.3390/ijms21072451] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 03/19/2020] [Accepted: 03/30/2020] [Indexed: 01/08/2023] Open
Abstract
The effects of combining naturally evolved photosynthetic pigment–protein complexes with inorganic functional materials, especially plasmonically active metallic nanostructures, have been a widely studied topic in the last few decades. Besides other applications, it seems to be reasonable using such hybrid systems for designing future biomimetic solar cells. In this paper, we describe selected results that point out to various aspects of the interactions between photosynthetic complexes and plasmonic excitations in Silver Island Films (SIFs). In addition to simple light-harvesting complexes, like peridinin-chlorophyll-protein (PCP) or the Fenna–Matthews–Olson (FMO) complex, we also discuss the properties of large, photosynthetic reaction centers (RCs) and Photosystem I (PSI)—both prokaryotic PSI core complexes and eukaryotic PSI supercomplexes with attached antenna clusters (PSI-LHCI)—deposited on SIF substrates.
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39
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Yang Y, Zhao J, Weng GJ, Li JJ, Zhu J, Zhao JW. Fine-tunable fluorescence quenching properties of core-satellite assemblies of gold nanorod-nanosphere: Application in sensitive detection of Hg 2. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117776. [PMID: 31727522 DOI: 10.1016/j.saa.2019.117776] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 10/14/2019] [Accepted: 11/06/2019] [Indexed: 06/10/2023]
Abstract
In this work, we developed a simple, effective fluorescence method to detect Hg2+ by inhibiting core-satellite assemblies of gold nanorods (AuNRs) and gold nanospheres (AuNPs). The fluorescence of Rhodamine 6G (Rh6G), which was simply mixed with the nanoassemblies, was efficiently quenched by the inner filter effect (IFE). When the heterogenous core-satellite nanostructures were assembled, the corresponding local surface plasmon resonance (LSPR) absorption shifts and broadens which results in the increase of the spectral overlap between the emission peak and the absorption band and more efficient energy transfer from Rh6G to nanoparticles. Fluorescence quenching efficiency is related to the size and number density of satellite nanoparticles. It is interesting that the AuNR-AuNP assemblies with the moderate size and high density of AuNPs have the best fluorescence quenching efficiency. In the presence of Hg2+, p-aminothiophenol (p-ATP) breaks away from the surface of AuNRs and competitively bounds to Hg2+, resulting in a low yield of the AuNR-AuNP assemblies, which further leads to the decrease of fluorescence quenching efficiency. Under the optimum conditions, the limit of detection (LOD) for Hg2+ was 0.18 nM, with an excellent linear response from 0.6 to 800 nM. Interference experiment and real samples detection indicate that these nanosensors endowed with higher sensitivity and selectivity for the detection of Hg2+ in the real samples. Compared with the conventional Hg2+ detection techniques, this method based on Hg2+ induced inhibition of core-satellite AuNR-AuNP assemblies has better performance and is suitable for the detection of Hg2+.
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Affiliation(s)
- Ying 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, China
| | - Jing Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, 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, 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, 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, China.
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
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40
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Sharma B, Parajuli P, Podila R. Rapid detection of urokinase plasminogen activator using flexible paper-based graphene-gold platform. Biointerphases 2020; 15:011004. [PMID: 32019314 PMCID: PMC7064303 DOI: 10.1116/1.5128889] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/22/2019] [Accepted: 01/09/2020] [Indexed: 11/17/2022] Open
Abstract
Many studies have shown that urokinase plasminogen activator (uPA) is causally involved in promoting cancer invasion and metastasis. Thus, monitoring uPA levels could be very useful in cancer diagnosis, identification of initial metastasis, and guiding cancer treatment. Here, the authors developed a novel and scalable uPA sensor based on a graphene-gold nanoparticle platform that uses fluorescence of quantum dots to rapidly (<1 h) detect uPA up to 100 pM. Indeed, the authors' sensor is highly selective and showed an ability to sense up to 100 pM uPA even in the presence of complex biological milieu such as the fetal bovine serum.
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Affiliation(s)
- Bipin Sharma
- Department of Physics and Astronomy, Laboratory of Nano-Biophysics, Clemson Nanomaterials Institute, Clemson University, Clemson, South Carolina 29634
| | - Prakash Parajuli
- Department of Physics and Astronomy, Laboratory of Nano-Biophysics, Clemson Nanomaterials Institute, Clemson University, Clemson, South Carolina 29634
| | - Ramakrishna Podila
- Department of Physics and Astronomy, Laboratory of Nano-Biophysics, Clemson Nanomaterials Institute, Clemson University, Clemson, South Carolina 29634
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Yin Z, Zhou Y, Cui P, Liao J, Rafailovich MH, Sun W. Fabrication of ordered bi-metallic array with superstructure of gold micro-rings via templated-self-assembly procedure and its SERS application. Chem Commun (Camb) 2020; 56:4808-4811. [DOI: 10.1039/d0cc00942c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Bi-metallic patterns with array of Pt discs decorated by Au rings were fabricated onto the substrate by a templated-self-assembly procedure in which multi-step self-assembly processes were involved.
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Affiliation(s)
- Zhangyu Yin
- Department of Materials Science and Engineering
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo, 315211
- China
| | - Yuchen Zhou
- Department of Materials Science and Chemical Engineering
- Stony Brook University
- Stony Brook
- USA
| | - Pengcheng Cui
- Department of Materials Science and Engineering
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo, 315211
- China
| | - Jinhua Liao
- Department of Materials Science and Engineering
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo, 315211
- China
| | - Miriam H. Rafailovich
- Department of Materials Science and Chemical Engineering
- Stony Brook University
- Stony Brook
- USA
| | - Wei Sun
- Department of Materials Science and Engineering
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo, 315211
- China
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42
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Ha M, Kim JH, You M, Li Q, Fan C, Nam JM. Multicomponent Plasmonic Nanoparticles: From Heterostructured Nanoparticles to Colloidal Composite Nanostructures. Chem Rev 2019; 119:12208-12278. [PMID: 31794202 DOI: 10.1021/acs.chemrev.9b00234] [Citation(s) in RCA: 178] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Plasmonic nanostructures possessing unique and versatile optoelectronic properties have been vastly investigated over the past decade. However, the full potential of plasmonic nanostructure has not yet been fully exploited, particularly with single-component homogeneous structures with monotonic properties, and the addition of new components for making multicomponent nanoparticles may lead to new-yet-unexpected or improved properties. Here we define the term "multi-component nanoparticles" as hybrid structures composed of two or more condensed nanoscale domains with distinctive material compositions, shapes, or sizes. We reviewed and discussed the designing principles and synthetic strategies to efficiently combine multiple components to form hybrid nanoparticles with a new or improved plasmonic functionality. In particular, it has been quite challenging to precisely synthesize widely diverse multicomponent plasmonic structures, limiting realization of the full potential of plasmonic heterostructures. To address this challenge, several synthetic approaches have been reported to form a variety of different multicomponent plasmonic nanoparticles, mainly based on heterogeneous nucleation, atomic replacements, adsorption on supports, and biomolecule-mediated assemblies. In addition, the unique and synergistic features of multicomponent plasmonic nanoparticles, such as combination of pristine material properties, finely tuned plasmon resonance and coupling, enhanced light-matter interactions, geometry-induced polarization, and plasmon-induced energy and charge transfer across the heterointerface, were reported. In this review, we comprehensively summarize the latest advances on state-of-art synthetic strategies, unique properties, and promising applications of multicomponent plasmonic nanoparticles. These plasmonic nanoparticles including heterostructured nanoparticles and composite nanostructures are prepared by direct synthesis and physical force- or biomolecule-mediated assembly, which hold tremendous potential for plasmon-mediated energy transfer, magnetic plasmonics, metamolecules, and nanobiotechnology.
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Affiliation(s)
- Minji Ha
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Jae-Ho Kim
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Myunghwa You
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Qian Li
- School of Chemistry and Chemical Engineering, and Institute of Molecular Medicine, Renji Hospital, School of Medicine , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, and Institute of Molecular Medicine, Renji Hospital, School of Medicine , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Jwa-Min Nam
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
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Alam P, Climent C, Alemany P, Laskar IR. “Aggregation-induced emission” of transition metal compounds: Design, mechanistic insights, and applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2019.100317] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Takeshima N, Sugawa K, Tahara H, Jin S, Wakui H, Fukushima M, Tokuda K, Igari S, Kanakubo K, Hayakawa Y, Katoh R, Takase K, Otsuki J. Plasmonic Silver Nanoprism-Induced Emissive Mode Control between Fluorescence and Phosphorescence of a Phosphorescent Palladium Porphyrin Derivative. ACS NANO 2019; 13:13244-13256. [PMID: 31633926 DOI: 10.1021/acsnano.9b06269] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We have succeeded in significantly enhancing fluorescence from intrinsically phosphorescent palladium octaethylporphyrin (Pd-porphyrin) that has an intersystem crossing efficiency of ∼1 by using silver nanoprisms (AgPRs). This was achieved by controlling the wavelength of the localized surface plasmon (LSP) resonance of AgPRs and the distance between the Pd-porphyrin molecules and the AgPR surfaces. In addition to enhancing phosphorescence by spectrally overlapping the phosphorescence band with the LSP resonance band, tuning the LSP wavelength to approximately 520 nm led to the appearance of a new emission band around the wavelength corresponding to the fluorescent radiation. The appearance of fluorescence suggests that the nonradiative energy transfer from the singlet excited state of Pd-porphyrin to the LSP of AgPRs overcame the ultrafast intramolecular intersystem crossing to the triplet excited state, manifesting the spectral properties of the singlet excited state of Pd-porphyrin. The fluorescence nature of this radiation was strongly supported by lifetime measurements of the hybrids of Pd-porphyrin and AgPRs. Furthermore, the dependence of the emissive intensities on the distance between the Pd-porphyrin molecules and the AgPR surfaces showed interesting opposite trends. The fluorescence intensity was increased as the distance between the molecules and the AgPRs was decreased from 10.5 to 1 nm, while the phosphorescence intensity was decreased, which indicates that the LSP-induced fluorescence radiation process from Pd-porphyrin near the AgPRs outweighed the quenching by the AgPRs, even though the phosphorescence significantly suffered quenching.
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Affiliation(s)
- Naoto Takeshima
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Kosuke Sugawa
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Hironobu Tahara
- Graduate School of Engineering , Nagasaki University , Bunkyo, Nagasaki 852-8521 , Japan
| | - Shota Jin
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Hiroki Wakui
- Department of Chemical Biology and Applied Chemistry, College of Engineering , Nihon University , Koriyama , Fukushima 963-8642 , Japan
| | - Misa Fukushima
- Department of Chemical Biology and Applied Chemistry, College of Engineering , Nihon University , Koriyama , Fukushima 963-8642 , Japan
| | - Kyo Tokuda
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Shuto Igari
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Kotomi Kanakubo
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Yutaro Hayakawa
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Ryuzi Katoh
- Department of Chemical Biology and Applied Chemistry, College of Engineering , Nihon University , Koriyama , Fukushima 963-8642 , Japan
| | - Kouichi Takase
- Department of Physics, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-0062 , Japan
| | - Joe Otsuki
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
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Gan W, Tserkezis C, Cai Q, Falin A, Mateti S, Nguyen M, Aharonovich I, Watanabe K, Taniguchi T, Huang F, Song L, Kong L, Chen Y, Li LH. Atomically Thin Boron Nitride as an Ideal Spacer for Metal-Enhanced Fluorescence. ACS NANO 2019; 13:12184-12191. [PMID: 31577417 DOI: 10.1021/acsnano.9b06858] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Metal-enhanced fluorescence (MEF) considerably enhances the luminescence for various applications, but its performance largely depends on the dielectric spacer between the fluorophore and plasmonic system. It is still challenging to produce a defect-free spacer having an optimized thickness with a sub-nanometer accuracy that enables reusability without affecting the enhancement. In this study, we demonstrate the use of atomically thin hexagonal boron nitride (BN) as an ideal MEF spacer owing to its multifold advantages over the traditional dielectric thin films. With rhodamine 6G as a representative fluorophore, it largely improves the enhancement factor (up to ∼95 ± 5), sensitivity (10-8 M), reproducibility, and reusability (∼90% of the plasmonic activity is retained after 30 cycles of heating at 350 °C in air) of MEF. This can be attributed to its two-dimensional structure, thickness control at the atomic level, defect-free quality, high affinities to aromatic fluorophores, good thermal stability, and excellent impermeability. The atomically thin BN spacers could increase the use of MEF in different fields and industries.
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Affiliation(s)
- Wei Gan
- Institute for Frontier Materials , Deakin University Geelong Waurn Ponds Campus, Geelong , Victoria 3216 , Australia
| | - Christos Tserkezis
- Center for Nano Optics , University of Southern Denmark , Campusvej 55 , DK-5230 Odense M , Denmark
| | - Qiran Cai
- Institute for Frontier Materials , Deakin University Geelong Waurn Ponds Campus, Geelong , Victoria 3216 , Australia
| | - Alexey Falin
- Institute for Frontier Materials , Deakin University Geelong Waurn Ponds Campus, Geelong , Victoria 3216 , Australia
| | - Srikanth Mateti
- Institute for Frontier Materials , Deakin University Geelong Waurn Ponds Campus, Geelong , Victoria 3216 , Australia
| | - Minh Nguyen
- School of Mathematical and Physical Sciences , University of Technology Sydney , Ultimo , New South Wales 2007 , Australia
| | - Igor Aharonovich
- School of Mathematical and Physical Sciences , University of Technology Sydney , Ultimo , New South Wales 2007 , Australia
| | - Kenji Watanabe
- National Institute for Materials Science , Namiki 1-1 , Tsukuba , Ibaraki 305-0044 , Japan
| | - Takashi Taniguchi
- National Institute for Materials Science , Namiki 1-1 , Tsukuba , Ibaraki 305-0044 , Japan
| | - Fumin Huang
- School of Mathematics and Physics , Queen's University Belfast , Belfast BT7 1NN , United Kingdom
| | - Li Song
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience , University of Science and Technology of China , Hefei , Anhui 230029 , China
| | - Lingxue Kong
- Institute for Frontier Materials , Deakin University Geelong Waurn Ponds Campus, Geelong , Victoria 3216 , Australia
| | - Ying Chen
- Institute for Frontier Materials , Deakin University Geelong Waurn Ponds Campus, Geelong , Victoria 3216 , Australia
| | - Lu Hua Li
- Institute for Frontier Materials , Deakin University Geelong Waurn Ponds Campus, Geelong , Victoria 3216 , Australia
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Ito F, Saigusa M, Kanayama N. Evaporative Crystallization of Dibenzoylmethanato Boron Difluoride Probed by Time-resolved Quartz Crystal Microbalance Responses with Fluorescence Changes. CHEM LETT 2019. [DOI: 10.1246/cl.190501] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Fuyuki Ito
- Department of Chemistry, Institute of Education, Shinshu University, 6-ro Nishinagano, Nagano 380-8544, Japan
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mai Saigusa
- Department of Chemistry, Institute of Education, Shinshu University, 6-ro Nishinagano, Nagano 380-8544, Japan
| | - Naoki Kanayama
- Graduate School of Medicine, Science and Technology, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Jung DW, Kim JM, Yun HJ, Yi GR, Cho JY, Jung H, Lee G, Chae WS, Nam KM. Understanding metal-enhanced fluorescence and structural properties in Au@Ag core-shell nanocubes. RSC Adv 2019; 9:29232-29237. [PMID: 35528395 PMCID: PMC9071844 DOI: 10.1039/c9ra05103a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 09/09/2019] [Indexed: 12/12/2022] Open
Abstract
Au@Ag core–shell structures have received particular interest due to their localized surface plasmon resonance properties and great potential as oxygen reduction reaction catalysts and building blocks for self-assembly. In this study, Au@Ag core–shell nanocubes (Au@AgNCs) were fabricated in a facile manner via stepwise Ag reduction on Au nanoparticles (AuNPs). The size of the Au@AgNCs and their optical properties can be simply modulated by changing the Ag shell thickness. Structural characterization has been carried out by TEM, SAED, and XRD. The metal-induced fluorescence properties of probe molecules near the Au@AgNCs were measured during sedimentation of the Au@AgNCs. The unique ring-like building block of Au@AgNCs has dual optical functions as a fluorescence quencher or fluorescence enhancement medium depending on the assembled regions. The unique ring-like building block of Au@AgNCs has dual optical functions as a fluorescence quencher and fluorescence enhancement medium.![]()
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Affiliation(s)
- Dae-Woong Jung
- Korea Basic Science Institute Daejeon 34133 Republic of Korea .,Department of Chemical Engineering, Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Jun Min Kim
- Korea Basic Science Institute Daejeon 34133 Republic of Korea .,Department of Chemical Engineering, Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Hyung Joong Yun
- Korea Basic Science Institute Daejeon 34133 Republic of Korea
| | - Gi-Ra Yi
- Department of Chemical Engineering, Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Jung Young Cho
- Korea Institute of Ceramic Engineering and Technology Jinju 52851 Republic of Korea
| | - Haeun Jung
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University Busan 46241 Korea
| | - Gaehang Lee
- Korea Basic Science Institute Daejeon 34133 Republic of Korea
| | - Weon-Sik Chae
- Analysis Research Division, Daegu Center, Korea Basic Science Institute Daegu 41566 Republic of Korea
| | - Ki Min Nam
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University Busan 46241 Korea
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Sharma B, Chiluwal S, Podila R. Analyte-induced disruption of luminescence quenching (AIDLuQ) for femtomolar detection of biomarkers. NANOSCALE 2019; 11:14010-14015. [PMID: 31309963 PMCID: PMC7085113 DOI: 10.1039/c9nr04308j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Here, we present a graphene-based analyte-induced disruption of luminescence quenching (AIDLuQ) assay for specific detection of biomarkers with femtomolar sensitivity. In the AIDLuQ assay, antibody (Ab)-conjugated quantum dots (QDs) are initially deposited on graphene-coated paper. However, the emission from QDs is quenched due to resonance energy transfer to graphene. Upon the addition of an analyte (An) corresponding to Ab, the QDs-Ab-An complex is lifted above the surface resulting in the disruption of the quenching from graphene and the recovery of the luminescence of the QDs. The percentage of recovery depends upon the concentration of the analyte, allowing one to create standard curves for effective quantification. Despite its rapidity in assay time (15-20 min), the graphene platform has limited sensitivities. To further enhance this sensitivity, we embedded gold nanoparticles (Au NPs) into graphene paper. The graphene-Au paper exhibited excellent sensitivity in our model assay and was able to detect ∼10 fM biotin and IgG, unlike graphene that showed only ∼1 nM and ∼10 pM sensitivities.
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Affiliation(s)
- Bipin Sharma
- Laboratory of Nano-Biophysics, Department of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA.
| | - Shailendra Chiluwal
- Laboratory of Nano-Biophysics, Department of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA.
| | - Ramakrishna Podila
- Laboratory of Nano-Biophysics, Department of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA.
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Jin T, Zhang Y, Li Y, Jing W, Li Y, Fan L, Li X. Ag@SiO2 nanoparticles performing as a nanoprobe for selective analysis of 2-aminoanthracene in wastewater samples via metal-enhanced fluorescence. Talanta 2019; 200:242-248. [DOI: 10.1016/j.talanta.2019.03.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 02/21/2019] [Accepted: 03/14/2019] [Indexed: 11/25/2022]
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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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