51
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Su YW, Wang W. Surface plasmon resonance sensing: from purified biomolecules to intact cells. Anal Bioanal Chem 2018; 410:3943-3951. [DOI: 10.1007/s00216-018-1008-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 02/03/2018] [Accepted: 03/07/2018] [Indexed: 12/11/2022]
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52
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Shpacovitch V, Hergenröder R. Optical and surface plasmonic approaches to characterize extracellular vesicles. A review. Anal Chim Acta 2018; 1005:1-15. [DOI: 10.1016/j.aca.2017.11.066] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 11/23/2017] [Accepted: 11/24/2017] [Indexed: 02/06/2023]
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53
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Hinman SS, McKeating KS, Cheng Q. Surface Plasmon Resonance: Material and Interface Design for Universal Accessibility. Anal Chem 2018; 90:19-39. [PMID: 29053253 PMCID: PMC6041476 DOI: 10.1021/acs.analchem.7b04251] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Samuel S. Hinman
- Environmental Toxicology, University of California–Riverside, Riverside, California 92521, United States
| | - Kristy S. McKeating
- Department of Chemistry, University of California–Riverside, Riverside, California 92521, United States
| | - Quan Cheng
- Environmental Toxicology, University of California–Riverside, Riverside, California 92521, United States
- Department of Chemistry, University of California–Riverside, Riverside, California 92521, United States
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54
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Abstract
Chemical activity of single nanoparticles can be imaged and determined by monitoring the optical signal of each individual during chemical reactions with advanced optical microscopes. It allows for clarifying the functional heterogeneity among individuals, and for uncovering the microscopic reaction mechanisms and kinetics that could otherwise be averaged out in ensemble measurements.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
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55
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Abstract
Semiconductor photocatalysis holds promising keys to address various energy and environmental challenges. Most studies to date are based on ensemble analysis, which may mask critical photocatalytic kinetics in single nanocatalysts. Here we report a study of imaging photocatalytic hydrogen production of single CdS nanoparticles with a plasmonic microscopy in an in operando manner. Surprisingly, we find that the photocatalytic reaction switches on and off stochastically despite the fact that the illumination is kept constant. The on and off states follow truncated and full-scale power-law distributions in broad time scales spanning 3-4 orders of magnitude, respectively, which can be described with a statistical model involving stochastic reactions rates at multiple active sites. This phenomenon is analogous to fluorescence photoblinking, but the underlying mechanism is different. As individual nanocatalyst represents the elementary photocatalytic platform, the discovery of the intermittent nature of the photocatalysis provides insights into the fundamental photochemistry and photophysics of semiconductor nanomaterials, which is anticipated to substantially benefit broad application fields such as clean energy, pollution treatment, and chemical synthesis.
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56
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Huang Q, Lin X, Zhu JJ, Tong QX. Pd-Au@carbon dots nanocomposite: Facile synthesis and application as an ultrasensitive electrochemical biosensor for determination of colitoxin DNA in human serum. Biosens Bioelectron 2017; 94:507-512. [DOI: 10.1016/j.bios.2017.03.048] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 03/02/2017] [Accepted: 03/21/2017] [Indexed: 12/18/2022]
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57
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Maley AM, Lu GJ, Shapiro MG, Corn RM. Characterizing Single Polymeric and Protein Nanoparticles with Surface Plasmon Resonance Imaging Measurements. ACS NANO 2017; 11:7447-7456. [PMID: 28692253 PMCID: PMC5531002 DOI: 10.1021/acsnano.7b03859] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 07/10/2017] [Indexed: 05/24/2023]
Abstract
Near-infrared surface plasmon resonance imaging (SPRI) microscopy is used to detect and characterize the adsorption of single polymeric and protein nanoparticles (PPNPs) onto chemically modified gold thin films in real time. The single-nanoparticle SPRI responses, Δ%RNP, from several hundred adsorbed nanoparticles are collected in a single SPRI adsorption measurement. Analysis of Δ%RNP frequency distribution histograms is used to provide information on the size, material content, and interparticle interactions of the PPNPs. Examples include the measurement of log-normal Δ%RNP distributions for mixtures of polystyrene nanoparticles, the quantitation of bioaffinity uptake into and aggregation of porous NIPAm-based (N-isopropylacrylamide) hydrogel nanoparticles specifically engineered to bind peptides and proteins, and the characterization of the negative single-nanoparticle SPRI response and log-normal Δ%RNP distributions obtained for three different types of genetically encoded gas-filled protein nanostructures derived from bacteria.
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Affiliation(s)
- Adam M. Maley
- Department
of Chemistry, University of California−Irvine, Irvine, California 92697, United States
| | - George J. Lu
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Mikhail G. Shapiro
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Robert M. Corn
- Department
of Chemistry, University of California−Irvine, Irvine, California 92697, United States
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58
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Li Z, Fang Y, Wang Y, Jiang Y, Liu T, Wang W. Visualizing the bidirectional electron transfer in a Schottky junction consisting of single CdS nanoparticles and a planar gold film. Chem Sci 2017; 8:5019-5023. [PMID: 30155222 PMCID: PMC6100258 DOI: 10.1039/c7sc00990a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 04/23/2017] [Indexed: 11/21/2022] Open
Abstract
Bidirectional electron transfer crossing the metal/semiconductor interface regulates the light absorption and carrier separation efficiency of plasmonic-semiconductor hybrid nanomaterials. Existing studies have been largely focused on a localized surface plasmon resonance (LSPR) effect contributed by an ensemble of metal nanomaterials. Herein, we constructed a Schottky junction that consisted of single CdS nanoparticles and a planar gold film, and investigated hot electrons excited by the surface plasmon polaritons (SPPs) propagating in the gold film. When illuminating the interface with blue light, photoinduced electrons were found to inject from the CdS nanoparticle to the gold film. In a reverse process, SPPs were generated on shining a red beam into the gold film via a Kretschmann configuration, resulting in the injection of hot electrons into CdS nanoparticles. A recently developed plasmonic microscopy method was employed to monitor the entire process, providing the ability to image a single nanoparticle to visualize the bidirectional electron transfer dynamics in a Schottky junction involving propagating SPPs. The present study advances the understanding of the mechanism of hot electron transfer, which is anticipated to aid in the rational design and optimization of plasmonic-semiconductor hybrid nanomaterials with broad applications in photocatalysis, photovoltaic devices, and photoelectrochemical sensing.
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Affiliation(s)
- Zhimin Li
- State Key Laboratory of Analytical Chemistry for Life Science , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China .
| | - Yimin Fang
- State Key Laboratory of Analytical Chemistry for Life Science , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China .
| | - Yongjie Wang
- State Key Laboratory of Analytical Chemistry for Life Science , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China .
| | - Yingyan Jiang
- State Key Laboratory of Analytical Chemistry for Life Science , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China .
| | - Tao Liu
- State Key Laboratory of Analytical Chemistry for Life Science , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China .
| | - Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China .
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59
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Yuan L, Tao N, Wang W. Plasmonic Imaging of Electrochemical Impedance. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2017; 10:183-200. [PMID: 28301751 DOI: 10.1146/annurev-anchem-061516-045150] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Electrochemical impedance spectroscopy (EIS) measures the frequency spectrum of an electrochemical interface to resist an alternating current. This method allows label-free and noninvasive studies on interfacial adsorption and molecular interactions and has applications in biosensing and drug screening. Although powerful, traditional EIS lacks spatial resolution or imaging capability, hindering the study of heterogeneous electrochemical processes on electrodes. We have recently developed a plasmonics-based electrochemical impedance technique to image local electrochemical impedance with a submicron spatial resolution and a submillisecond temporal resolution. In this review, we provide a systematic description of the theory, instrumentation, and data analysis of this technique. To illustrate its present and future applications, we further describe several selected samples analyzed with this method, including protein microarrays, two-dimensional materials, and single cells. We conclude by summarizing the technique's unique features and discussing the remaining challenges and new directions of its application.
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Affiliation(s)
- Liang Yuan
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China ;
| | - Nongjian Tao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China ;
- Center for Bioelectronics and Biosensors, Biodesign Institute, Arizona State University, Tempe, Arizona 85287
| | - Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China ;
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60
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Pan MY, Lee KL, Wang L, Wei PK. Chip-based digital surface plasmon resonance sensing platform for ultrasensitive biomolecular detection. Biosens Bioelectron 2017; 91:580-587. [DOI: 10.1016/j.bios.2017.01.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 12/23/2016] [Accepted: 01/03/2017] [Indexed: 12/26/2022]
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61
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Shpacovitch V, Sidorenko I, Lenssen JE, Temchura V, Weichert F, Müller H, Überla K, Zybin A, Schramm A, Hergenröder R. Application of the PAMONO-Sensor for Quantification of Microvesicles and Determination of Nano-Particle Size Distribution. SENSORS 2017; 17:s17020244. [PMID: 28134825 PMCID: PMC5336007 DOI: 10.3390/s17020244] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/16/2017] [Indexed: 12/15/2022]
Abstract
The PAMONO-sensor (plasmon assisted microscopy of nano-objects) demonstrated an ability to detect and quantify individual viruses and virus-like particles. However, another group of biological vesicles-microvesicles (100-1000 nm)-also attracts growing interest as biomarkers of different pathologies and needs development of novel techniques for characterization. This work shows the applicability of a PAMONO-sensor for selective detection of microvesicles in aquatic samples. The sensor permits comparison of relative concentrations of microvesicles between samples. We also study a possibility of repeated use of a sensor chip after elution of the microvesicle capturing layer. Moreover, we improve the detection features of the PAMONO-sensor. The detection process utilizes novel machine learning techniques on the sensor image data to estimate particle size distributions of nano-particles in polydisperse samples. Altogether, our findings expand analytical features and the application field of the PAMONO-sensor. They can also serve for a maturation of diagnostic tools based on the PAMONO-sensor platform.
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Affiliation(s)
- Victoria Shpacovitch
- Leibniz Institute für Analytische Wissenschaften, ISAS e.V., Bunsen-Kirchhoff-Straße 11, 44139 Dortmund, Germany; (A.Z.); (R.H.)
- Correspondence: or ; Tel.: +49-231-1392-1043
| | | | - Jan Eric Lenssen
- Department of Computer Science VII, TU Dortmund University, Otto-Hahn-Straße. 16, 44227 Dortmund, Germany; (J.E.L.); (F.W.); (H.M.)
| | - Vladimir Temchura
- Institute of Clinical and Molecular Virology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Schlossgarten 4, 91054 Erlangen, Germany; (V.T.); (K.Ü.)
| | - Frank Weichert
- Department of Computer Science VII, TU Dortmund University, Otto-Hahn-Straße. 16, 44227 Dortmund, Germany; (J.E.L.); (F.W.); (H.M.)
| | - Heinrich Müller
- Department of Computer Science VII, TU Dortmund University, Otto-Hahn-Straße. 16, 44227 Dortmund, Germany; (J.E.L.); (F.W.); (H.M.)
| | - Klaus Überla
- Institute of Clinical and Molecular Virology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Schlossgarten 4, 91054 Erlangen, Germany; (V.T.); (K.Ü.)
| | - Alexander Zybin
- Leibniz Institute für Analytische Wissenschaften, ISAS e.V., Bunsen-Kirchhoff-Straße 11, 44139 Dortmund, Germany; (A.Z.); (R.H.)
| | - Alexander Schramm
- Children’s Hospital, Oncology Laboratory, University Clinic Essen, Hufelandstraße. 55, 45122 Essen, Germany;
| | - Roland Hergenröder
- Leibniz Institute für Analytische Wissenschaften, ISAS e.V., Bunsen-Kirchhoff-Straße 11, 44139 Dortmund, Germany; (A.Z.); (R.H.)
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62
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Jiang D, Jiang Y, Li Z, Liu T, Wo X, Fang Y, Tao N, Wang W, Chen HY. Optical Imaging of Phase Transition and Li-Ion Diffusion Kinetics of Single LiCoO(2) Nanoparticles During Electrochemical Cycling. J Am Chem Soc 2016; 139:186-192. [PMID: 27959535 DOI: 10.1021/jacs.6b08923] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Understanding the phase transition and Li-ion diffusion kinetics of Li-ion storage nanomaterials holds promising keys to further improve the cycle life and charge rate of the Li-ion battery. Traditional electrochemical studies were often based on a bulk electrode consisting of billions of electroactive nanoparticles, which washed out the intrinsic heterogeneity among individuals. Here, we employ optical microscopy, termed surface plasmon resonance microscopy (SPRM), to image electrochemical current of single LiCoO2 nanoparticles down to 50 fA during electrochemical cycling, from which the phase transition and Li-ion diffusion kinetics can be quantitatively resolved in a single nanoparticle, in operando and high throughput manner. SPRM maps the refractive index (RI) of single LiCoO2 nanoparticles, which significantly decreases with the gradual extraction of Li-ions, enabling the optical read-out of single nanoparticle electrochemistry. Further scanning electron microscopy characterization of the same batch of nanoparticles led to a bottom-up strategy for studying the structure-activity relationship. As RI is an intrinsic property of any material, the present approach is anticipated to be applicable for versatile kinds of anode and cathode materials, and to facilitate the rational design and optimization toward durable and fast-charging electrode materials.
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Affiliation(s)
- Dan Jiang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University , Nanjing 210093, China
| | - Yingyan Jiang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University , Nanjing 210093, China
| | - Zhimin Li
- School of Chemistry and Chemical Engineering, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University , Nanjing 210093, China
| | - Tao Liu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University , Nanjing 210093, China
| | - Xiang Wo
- School of Chemistry and Chemical Engineering, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University , Nanjing 210093, China
| | - Yimin Fang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University , Nanjing 210093, China
| | - Nongjian Tao
- School of Chemistry and Chemical Engineering, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University , Nanjing 210093, China.,Center for Bioelectronics and Biosensors, Biodesign Institute, Arizona State University , Tempe, Arizona 85287, United States
| | - Wei Wang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University , Nanjing 210093, China
| | - Hong-Yuan Chen
- School of Chemistry and Chemical Engineering, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University , Nanjing 210093, China
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63
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Scherbahn V, Nizamov S, Mirsky VM. Plasmonic detection and visualization of directed adsorption of charged single nanoparticles to patterned surfaces. Mikrochim Acta 2016; 183:2837-2845. [PMID: 27795582 PMCID: PMC5061841 DOI: 10.1007/s00604-016-1956-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 09/15/2016] [Indexed: 01/09/2023]
Abstract
It has recently been shown that surface plasmon microscopy (SPM) allows single nanoparticles (NPs) on sensor surfaces to be detected and analyzed. The authors have applied this technique to study the adsorption of single metallic and plastic NPs. Binding of gold NPs (40, 60 and 100 nm in size) and of 100 nm polystyrene NPs to gold surfaces modified by differently ω-functionalized alkyl thiols was studied first. Self-assembled monolayers (SAM) with varying terminal functions including amino, carboxy, oligo(ethylene glycol), methyl, or trimethylammonium groups were deposited on gold films to form surfaces possessing different charge and hydrophobicity. The affinity of NPs to these surfaces depends strongly on the type of coating. SAMs terminated with trimethylammonium groups and carboxy group display highly different affinity and therefore were preferred when creating patterned charged surfaces. Citrate-stabilized gold NPs and sulfate-terminated polystyrene NPs were used as negatively charged NPs, while branched polyethylenimine-coated silver NPs were used as positively charged NPs. It is shown that the charged patterned areas on the gold films are capable of selectively adsorbing oppositely charged NPs that can be detected and analyzed with an ~1 ng⋅mL−1 detection limit. Self-assembled monolayers of ω-functionalized alkyl thiols were deposited on a gold layer of a patterned sensor array. The charge-selective binding of single nanoparticles to such surfaces was registered by wide-field surface plasmon microscopy. ![]()
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Affiliation(s)
- Vitali Scherbahn
- Nanobiotechnology - Institute of Biotechnology, Brandenburgische Technische Universität Cottbus - Senftenberg, 01968 Senftenberg, Germany
| | - Shavkat Nizamov
- Nanobiotechnology - Institute of Biotechnology, Brandenburgische Technische Universität Cottbus - Senftenberg, 01968 Senftenberg, Germany
| | - Vladimir M Mirsky
- Nanobiotechnology - Institute of Biotechnology, Brandenburgische Technische Universität Cottbus - Senftenberg, 01968 Senftenberg, Germany
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64
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López-Lorente ÁI, Mizaikoff B. Recent advances on the characterization of nanoparticles using infrared spectroscopy. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.01.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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65
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Jazayeri MH, Amani H, Pourfatollah AA, Avan A, Ferns GA, Pazoki-Toroudi H. Enhanced detection sensitivity of prostate-specific antigen via PSA-conjugated gold nanoparticles based on localized surface plasmon resonance: GNP-coated anti-PSA/LSPR as a novel approach for the identification of prostate anomalies. Cancer Gene Ther 2016; 23:365-369. [DOI: 10.1038/cgt.2016.42] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 08/24/2016] [Accepted: 08/29/2016] [Indexed: 01/31/2023]
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66
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Manuel G, Lupták A, Corn RM. A Microwell-Printing Fabrication Strategy for the On-Chip Templated Biosynthesis of Protein Microarrays for Surface Plasmon Resonance Imaging. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2016; 120:20984-20990. [PMID: 28706572 PMCID: PMC5504410 DOI: 10.1021/acs.jpcc.6b03307] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A two-step templated, ribosomal biosynthesis/printing method for the fabrication of protein microarrays for surface plasmon resonance imaging (SPRI) measurements is demonstrated. In the first step, a sixteen component microarray of proteins is created in microwells by cell free on chip protein synthesis; each microwell contains both an in vitro transcription and translation (IVTT) solution and 350 femtomoles of a specific DNA template sequence that together are used to create approximately 40 picomoles of a specific hexahistidine-tagged protein. In the second step, the protein microwell array is used to contact print one or more protein microarrays onto nitrilotriacetic acid (NTA)-functionalized gold thin film SPRI chips for real-time SPRI surface bioaffinity adsorption measurements. Even though each microwell array element only contains approximately 40 picomoles of protein, the concentration is sufficiently high for the efficient bioaffinity adsorption and capture of the approximately 100 femtomoles of hexahistidine-tagged protein required to create each SPRI microarray element. As a first example, the protein biosynthesis process is verified with fluorescence imaging measurements of a microwell array containing His-tagged green fluorescent protein (GFP), yellow fluorescent protein (YFP) and mCherry (RFP), and then the fidelity of SPRI chips printed from this protein microwell array is ascertained by measuring the real-time adsorption of various antibodies specific to these three structurally related proteins. This greatly simplified two-step synthesis/printing fabrication methodology eliminates most of the handling, purification and processing steps normally required in the synthesis of multiple protein probes, and enables the rapid fabrication of SPRI protein microarrays from DNA templates for the study of protein-protein bioaffinity interactions.
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Affiliation(s)
| | - Andrej Lupták
- Corresponding Authors: Robert M. Corn,
, phone: 1-949-824-1746 and Andrej Luptak,
, phone: 1-949-824-9132
| | - Robert M. Corn
- Corresponding Authors: Robert M. Corn,
, phone: 1-949-824-1746 and Andrej Luptak,
, phone: 1-949-824-9132
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67
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Fast A, Kenison JP, Syme CD, Potma EO. Surface-enhanced coherent anti-Stokes Raman imaging of lipids. APPLIED OPTICS 2016; 55:5994-6000. [PMID: 27505381 DOI: 10.1364/ao.55.005994] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This work describes in detail a wide-field surface-enhanced coherent anti-Stokes Raman scattering (CARS) microscope, which enables enhanced detection of sample structures in close proximity (∼100 nm) of the substrate interface. Unlike conventional CARS microscopy, where the sample is illuminated with freely propagating light, the current implementation uses evanescent fields to drive Raman coherences across the entire object plane. By coupling the pump and Stokes excitation beams to the surface plasmon-polariton mode at the interface of a 30 nm thick gold film, we obtained strong CARS signals from cholesteryl oleate droplets adhered to the surface. The surface-enhanced CARS imaging system visualizes lipid structures with vibrational selectivity using illumination doses per unit area that are more than four orders of magnitude lower than in point-scanning CARS microscopy.
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68
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Wo X, Luo Y, Tao N, Wang W, Chen HY. Measuring the number concentration of arbitrarily-shaped gold nanoparticles with surface plasmon resonance microscopy. Sci China Chem 2016. [DOI: 10.1007/s11426-015-0521-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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69
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Nizamov S, Kasian O, Mirsky VM. Einzelnachweis und elektrochemisch unterstützte Identifizierung adsorbierter Nanopartikel mit Oberflächenplasmonen-Mikroskopie. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600853] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shavkat Nizamov
- Fachgebiet Nanobiotechnologie, Institut für Biotechnologie; Brandenburgische Technische Universität Cottbus - Senftenberg; 01968 Senftenberg Deutschland
| | - Olga Kasian
- Fachgebiet Nanobiotechnologie, Institut für Biotechnologie; Brandenburgische Technische Universität Cottbus - Senftenberg; 01968 Senftenberg Deutschland
| | - Vladimir M. Mirsky
- Fachgebiet Nanobiotechnologie, Institut für Biotechnologie; Brandenburgische Technische Universität Cottbus - Senftenberg; 01968 Senftenberg Deutschland
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70
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Nizamov S, Kasian O, Mirsky VM. Individual Detection and Electrochemically Assisted Identification of Adsorbed Nanoparticles by Using Surface Plasmon Microscopy. Angew Chem Int Ed Engl 2016; 55:7247-51. [PMID: 27139913 DOI: 10.1002/anie.201600853] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/10/2016] [Indexed: 12/13/2022]
Abstract
The increasing production and application of nanoparticles necessitates a highly sensitive analytical method for the quantification and identification of these potentially hazardous materials. We describe here an application of surface plasmon microscopy for the individual detection of each adsorbed nanoparticle and for visualization of its electrochemical conversion. Whereas the adsorption rate characterizes the number concentration of nanoparticles, the potential at which the adsorbed nanoparticles disappear during an anodic potential sweep characterizes the type of material. All the adsorbed nanoparticles are subjected to the potential sweep simultaneously; nevertheless, each of the up to a million adsorbed nanoparticles is identified individually by its electrochemical dissolution potential. The technique has been tested with silver and copper nanoparticles, but can be extended to many other electrochemically active nanomaterials.
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Affiliation(s)
- Shavkat Nizamov
- Department of Nanobiotechnology, Institute of Biotechnology, Brandenburgische Technische Universität Cottbus-Senftenberg, 01968, Senftenberg, Germany
| | - Olga Kasian
- Department of Nanobiotechnology, Institute of Biotechnology, Brandenburgische Technische Universität Cottbus-Senftenberg, 01968, Senftenberg, Germany
| | - Vladimir M Mirsky
- Department of Nanobiotechnology, Institute of Biotechnology, Brandenburgische Technische Universität Cottbus-Senftenberg, 01968, Senftenberg, Germany.
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71
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Wo X, Li Z, Jiang Y, Li M, Su YW, Wang W, Tao N. Determining the Absolute Concentration of Nanoparticles without Calibration Factor by Visualizing the Dynamic Processes of Interfacial Adsorption. Anal Chem 2016; 88:2380-5. [DOI: 10.1021/acs.analchem.5b04386] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Xiang Wo
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Zhimin Li
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yingyan Jiang
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Minghe Li
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yu-wen Su
- School
of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Wei Wang
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Nongjian Tao
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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72
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Yuan L, Wang X, Fang Y, Liu C, Jiang D, Wo X, Wang W, Chen HY. Digitizing Gold Nanoparticle-Based Colorimetric Assay by Imaging and Counting Single Nanoparticles. Anal Chem 2016; 88:2321-6. [DOI: 10.1021/acs.analchem.5b04244] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Liang Yuan
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Xian Wang
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Yimin Fang
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Chenbin Liu
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Dan Jiang
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Xiang Wo
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Wei Wang
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
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73
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Forest S, Breault-Turcot J, Chaurand P, Masson JF. Surface Plasmon Resonance Imaging-MALDI-TOF Imaging Mass Spectrometry of Thin Tissue Sections. Anal Chem 2016; 88:2072-9. [DOI: 10.1021/acs.analchem.5b03309] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Simon Forest
- Département
de Chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Julien Breault-Turcot
- Département
de Chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Pierre Chaurand
- Département
de Chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Jean-Francois Masson
- Département
de Chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Québec H3C 3J7, Canada
- Centre
for Self-Assembled Chemical Structures (CSACS), McGill University, Montreal, Quebec H3A 2K6, Canada
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74
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Edel JB, Kornyshev AA, Kucernak AR, Urbakh M. Fundamentals and applications of self-assembled plasmonic nanoparticles at interfaces. Chem Soc Rev 2016; 45:1581-96. [DOI: 10.1039/c5cs00576k] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This tutorial review covers applications and fundamentals of self-assembled plasmonic nanoparticles at liquid|liquid and liquid|air interfaces.
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Affiliation(s)
- Joshua B. Edel
- Department of Chemistry
- Imperial College London
- SW7 2AZ London
- UK
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75
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Yang C, Dou B, Yang J, Yuan R, Xiang Y. Cross-triggered and cascaded recycling amplification for ultrasensitive electrochemical sensing of the mutant human p53 gene. Chem Commun (Camb) 2016; 52:8707-10. [DOI: 10.1039/c6cc04587a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cross-triggered and cascaded recycling amplification enables the highly sensitive electrochemical detection of the mutant p53 gene in human serum.
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Affiliation(s)
- Cuiyun Yang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Baoting Dou
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Jianmei Yang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Yun Xiang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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76
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Abstract
Plasmonic imaging is crucial for understanding cellular behaviours for biological sciences, where is used to image and track organelles in cells, such as DNA and virus molecules. Due to the fast dynamics of the intra-cellular processes, it is essential to keep the cells under their native states (i.e. label-free), establishing plasmonic imaging as one of the most powerful tools for studying biological samples. In this article, a theoretical model is presented that accurately predicts the properties of a plasmonic image, paving the route towards the characterization of an imaged nano-object. It is shown that natural modes are not only excited, but actually dominate the intensity and shape of the observed plasmonic image. Hence, the proposed model explains the dynamics forming the plasmonic image and can be used to extract spectroscopy information from current plasmonic imaging techniques.
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77
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Wang W. The rising of microscopic electrochemistry: “watching” the local electron transfer optically. Sci Bull (Beijing) 2015. [DOI: 10.1007/s11434-015-0915-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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78
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Application of surface plasmon resonance imaging technique for the detection of single spherical biological submicrometer particles. Anal Biochem 2015; 486:62-9. [DOI: 10.1016/j.ab.2015.06.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 06/12/2015] [Accepted: 06/12/2015] [Indexed: 11/20/2022]
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79
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Novel Signal-Enhancing Approaches for Optical Detection of Nucleic Acids—Going beyond Target Amplification. CHEMOSENSORS 2015. [DOI: 10.3390/chemosensors3030224] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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80
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Computer assisted detection and quantification of single adsorbing nanoparticles by differential surface plasmon microscopy. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1599-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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81
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Sun YS. Use of Microarrays as a High-Throughput Platform for Label-Free Biosensing. ACTA ACUST UNITED AC 2015; 20:334-53. [DOI: 10.1177/2211068215577570] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Indexed: 12/28/2022]
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82
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Cretich M, Daaboul GG, Sola L, Ünlü MS, Chiari M. Digital detection of biomarkers assisted by nanoparticles: application to diagnostics. Trends Biotechnol 2015; 33:343-51. [DOI: 10.1016/j.tibtech.2015.03.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 03/12/2015] [Accepted: 03/19/2015] [Indexed: 01/09/2023]
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83
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Cho K, Fasoli JB, Yoshimatsu K, Shea KJ, Corn RM. Measuring melittin uptake into hydrogel nanoparticles with near-infrared single nanoparticle surface plasmon resonance microscopy. Anal Chem 2015; 87:4973-9. [PMID: 25844641 PMCID: PMC4423510 DOI: 10.1021/acs.analchem.5b00776] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
![]()
This
paper describes how changes in the refractive index of single
hydrogel nanoparticles (HNPs) detected with near-infrared surface
plasmon resonance microscopy (SPRM) can be used to monitor the uptake
of therapeutic compounds for potential drug delivery applications.
As a first example, SPRM is used to measure the specific uptake of
the bioactive peptide melittin into N-isopropylacrylamide
(NIPAm)-based HNPs. Point diffraction patterns in sequential real-time
SPRM differential reflectivity images are counted to create digital
adsorption binding curves of single 220 nm HNPs from picomolar nanoparticle
solutions onto hydrophobic alkanethiol-modified gold surfaces. For
each digital adsorption binding curve, the average single nanoparticle
SPRM reflectivity response, ⟨Δ%RNP⟩, was measured. The value of ⟨Δ%RNP⟩ increased linearly from 1.04 ±
0.04 to 2.10 ± 0.10% when the melittin concentration in the HNP
solution varied from zero to 2.5 μM. No change in the average
HNP size in the presence of melittin is observed with dynamic light
scattering measurements, and no increase in ⟨Δ%RNP⟩ is observed in the presence of either
FLAG octapeptide or bovine serum albumin. Additional bulk fluorescence
measurements of melittin uptake into HNPs are used to estimate that
a 1% increase in ⟨Δ%RNP⟩
observed in SPRM corresponds to the incorporation of approximately
65000 molecules into each 220 nm HNP, corresponding to roughly 4%
of its volume. The lowest detected amount of melittin loading into
the 220 nm HNPs was an increase in ⟨Δ%RNP⟩ of 0.15%, corresponding to the absorption of
10000 molecules.
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Affiliation(s)
- Kyunghee Cho
- Department of Chemistry, University of California-Irvine, Irvine, California 92697, United States
| | - Jennifer B Fasoli
- Department of Chemistry, University of California-Irvine, Irvine, California 92697, United States
| | - Keiichi Yoshimatsu
- Department of Chemistry, University of California-Irvine, Irvine, California 92697, United States
| | - Kenneth J Shea
- Department of Chemistry, University of California-Irvine, Irvine, California 92697, United States
| | - Robert M Corn
- Department of Chemistry, University of California-Irvine, Irvine, California 92697, United States
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84
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Zhang L, Zhang Y, Hu Y, Fan Q, Yang W, Li A, Li S, Huang W, Wang L. Refractive index dependent real-time plasmonic nanoprobes on a single silver nanocube for ultrasensitive detection of the lung cancer-associated miRNAs. Chem Commun (Camb) 2015; 51:294-7. [DOI: 10.1039/c4cc06663d] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We developed a novel method for the real-time monitoring of the delicate change in refractive index (RI) when DNA or RNA hybridize near a DNA-capped silver nanocube (AgNC) surface.
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Affiliation(s)
- Lei Zhang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Ying Zhang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Yanling Hu
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Quli Fan
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Wenjing Yang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Anran Li
- Division of Materials Science
- School of Materials Science and Engineering
- Singapore
| | - Shuzhou Li
- Division of Materials Science
- School of Materials Science and Engineering
- Singapore
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
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85
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Bedford EE, Boujday S, Pradier CM, Gu FX. Nanostructured and spiky gold in biomolecule detection: improving binding efficiencies and enhancing optical signals. RSC Adv 2015. [DOI: 10.1039/c4ra13544j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Nanostructured gold can improve the ability to detect biomolecules.
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Affiliation(s)
- E. E. Bedford
- Sorbonne Universités
- UPMC University Paris 6
- UMR CNRS 7197
- Laboratoire de Réactivité de Surface
- F75005 Paris
| | - S. Boujday
- Sorbonne Universités
- UPMC University Paris 6
- UMR CNRS 7197
- Laboratoire de Réactivité de Surface
- F75005 Paris
| | - C.-M. Pradier
- Sorbonne Universités
- UPMC University Paris 6
- UMR CNRS 7197
- Laboratoire de Réactivité de Surface
- F75005 Paris
| | - F. X. Gu
- Department of Chemical Engineering
- University of Waterloo
- Waterloo
- Canada
- Waterloo Institute for Nanotechnology
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86
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Toma K, Kano H, Offenhäusser A. Label-free measurement of cell-electrode cleft gap distance with high spatial resolution surface plasmon microscopy. ACS NANO 2014; 8:12612-9. [PMID: 25423587 DOI: 10.1021/nn505521e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Understanding the interface between cells or tissues and artificial materials is of critical importance for a broad range of areas. For example, in neurotechnology, the interfaces between neurons and external devices create a link between technical and the nervous systems by stimulating or recording from neural tissue. Here, a more effective interface is required to enhance the electrical characteristics of neuronal recordings and stimulations. Up to now, the lack of a systematic characterization of cell-electrode interaction turns out to be the major bottleneck. In this work, we employed a recently developed surface plasmon microscope (SPM) to monitor in real-time the cell-metal interface and to measure in situ the gap distance of the cleft with the spatial resolution reaching to the optical diffraction limit. The SPM allowed determination of the distance of human embryonic kidney 293 cells cultured on gold surfaces coated with various peptides or proteins without any labeling. This method can dramatically simplify the interaction investigation at metal-living cell interface and should be incorporated into systematic characterization methods.
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Affiliation(s)
- Koji Toma
- Institute of Bioelectronics (ICS-8/PGI-8), Forschungszentrum Jülich GmbH , 52425 Jülich, Germany
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87
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Abstract
Plasmons in graphene have unusual properties and offer promising prospects for plasmonic applications covering a wide frequency range, ranging from terahertz up to the visible. Plasmon modes have been recently studied in both free-standing and supported graphene. Here, we review plasmons in graphene with particular emphasis on plasmonic excitations in epitaxial graphene and on the influence of the underlying substrate on the screening processes. Although the theoretical comprehension of plasmons in supported graphene is still incomplete, several experimental results provide clues regarding the nature of plasmonic excitations in graphene on metals and semiconductors. Plasmon in graphene can be tuned by chemical doping and gating potentials. We show through selected examples that the adsorbates can be used to tune the plasmon frequency, while the intercalation of chemical species allows the decoupling of the graphene sheet from the substrate to recover the plasmon dispersion of pristine graphene. Finally, we also report intriguing effects due to many-body interaction, such as the excitations generated by electron-electron coupling (magnetoplasmons) and the composite modes arising from the coupling of plasmons with phonons and with charge carriers.
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Affiliation(s)
- Antonio Politano
- Università degli Studi della Calabria, Dipartimento di Fisica, 87036 Rende, CS, Italy.
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88
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Špringer T, Ermini ML, Špačková B, Jabloňků J, Homola J. Enhancing Sensitivity of Surface Plasmon Resonance Biosensors by Functionalized Gold Nanoparticles: Size Matters. Anal Chem 2014; 86:10350-6. [DOI: 10.1021/ac502637u] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomáš Špringer
- Institute of Photonics and Electronics AS CR, v. v. i., Chaberská 57, 182 51, Prague, Czech Republic
| | - Maria Laura Ermini
- Institute of Photonics and Electronics AS CR, v. v. i., Chaberská 57, 182 51, Prague, Czech Republic
| | - Barbora Špačková
- Institute of Photonics and Electronics AS CR, v. v. i., Chaberská 57, 182 51, Prague, Czech Republic
| | - Jani Jabloňků
- Institute of Photonics and Electronics AS CR, v. v. i., Chaberská 57, 182 51, Prague, Czech Republic
| | - Jiří Homola
- Institute of Photonics and Electronics AS CR, v. v. i., Chaberská 57, 182 51, Prague, Czech Republic
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89
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Zeptomole detection of C-reactive protein in serum by a nanoparticle amplified surface plasmon resonance imaging aptasensor. Sci Rep 2014; 4:5129. [PMID: 24875139 PMCID: PMC4038818 DOI: 10.1038/srep05129] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 05/14/2014] [Indexed: 01/13/2023] Open
Abstract
Diagnostic biomarkers (i.e. proteins) are often in low abundance in bodily fluids presenting many challenges for their detection. In order to extend the application of SPRi systems in detecting biomarkers at ultralow levels, we combine the advantage of aptamer technology with nanomaterials and microwave-assisted surface functionalization. By implementing a sandwich assay through the introduction of aptamer-modified quantum dots (QDs), it was possible to measure 7 zeptomole (at 5 fg/mL) of C-reactive protein (CRP) selectively in spiked human serum. It is expected that the proposed platform will provide new direction in designing ultrasensitive SPRi biosensors with multiplexing capabilities.
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