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Kurus NN, Kalinin V, Nebogatikova NA, Milekhin IA, Antonova IV, Rodyakina EE, Milekhin AG, Latyshev AV, Zahn DRT. Resonant Raman scattering on graphene: SERS and gap-mode TERS. RSC Adv 2024; 14:3667-3674. [PMID: 38268550 PMCID: PMC10805077 DOI: 10.1039/d3ra07018b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 01/03/2024] [Indexed: 01/26/2024] Open
Abstract
Nanoscale deformations and corrugations occur in graphene-like two-dimensional materials during their incorporation into hybrid structures and real devices, such as sensors based on surface-enhanced Raman scattering (SERS-based sensors). The structural features mentioned above are known to affect the electronic properties of graphene, thus highly sensitive and high-resolution techniques are required to reveal and characterize arising local defects, mechanical deformations, and phase transformations. In this study, we demonstrate that gap-mode tip-enhanced Raman Scattering (gm-TERS), which offers the benefits of structural and chemical analytical methods, allows variations in the structure and mechanical state of a two-dimensional material to be probed with nanoscale spatial resolution. In this work, we demonstrate locally enhanced gm-TERS on a monolayer graphene film placed on a plasmonic substrate with specific diameter gold nanodisks. SERS measurements are employed to determine the optimal disk diameter and excitation wavelength for further realization of gm-TERS. A significant local plasmonic enhancement of the main vibrational modes in graphene by a factor of 100 and a high spatial resolution of 10 nm are achieved in the gm-TERS experiment, making gm-TERS chemical mapping possible. By analyzing the gm-TERS spectra of the graphene film in the local area of a nanodisk, the local tensile mechanical strain in graphene was detected, resulting in a split of the G mode into two components, G+ and G-. Using the frequency split in the positions of G+ and G- modes in the TERS spectra, the stress was estimated to be up to 1.5%. The results demonstrate that gap-mode TERS mapping allows rapid and precise characterization of local structural defects in two-dimensional materials on the nanoscale.
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Affiliation(s)
- N N Kurus
- Rzhanov Institute of Semiconductor Physics (SBRAS) Lavrentjev av. 13 Novosibirsk 630090 Russia
| | - V Kalinin
- Novosibirsk State University Pirogov str. 1 Novosibirsk 630090 Russia
| | - N A Nebogatikova
- Rzhanov Institute of Semiconductor Physics (SBRAS) Lavrentjev av. 13 Novosibirsk 630090 Russia
- Novosibirsk State University Pirogov str. 1 Novosibirsk 630090 Russia
| | - I A Milekhin
- Rzhanov Institute of Semiconductor Physics (SBRAS) Lavrentjev av. 13 Novosibirsk 630090 Russia
- Novosibirsk State University Pirogov str. 1 Novosibirsk 630090 Russia
| | - I V Antonova
- Rzhanov Institute of Semiconductor Physics (SBRAS) Lavrentjev av. 13 Novosibirsk 630090 Russia
- Novosibirsk State University Pirogov str. 1 Novosibirsk 630090 Russia
| | - E E Rodyakina
- Rzhanov Institute of Semiconductor Physics (SBRAS) Lavrentjev av. 13 Novosibirsk 630090 Russia
- Novosibirsk State University Pirogov str. 1 Novosibirsk 630090 Russia
| | - A G Milekhin
- Rzhanov Institute of Semiconductor Physics (SBRAS) Lavrentjev av. 13 Novosibirsk 630090 Russia
| | - A V Latyshev
- Rzhanov Institute of Semiconductor Physics (SBRAS) Lavrentjev av. 13 Novosibirsk 630090 Russia
- Novosibirsk State University Pirogov str. 1 Novosibirsk 630090 Russia
| | - D R T Zahn
- Semiconductor Physics and Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology Reichenhainer Str. 70 D-09107 Chemnitz Germany
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2
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Zhu B, Hu J, Li X, Li X, Wang L, Fan S, Jin X, Wang K, Zhao W, Zhu W, Chen C, Wang Z, Lu Y. Rapid and specific detection of Enterococcus faecalis with a visualized isothermal amplification method. Front Cell Infect Microbiol 2022; 12:991849. [PMID: 36171761 PMCID: PMC9510690 DOI: 10.3389/fcimb.2022.991849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/22/2022] [Indexed: 12/02/2022] Open
Abstract
Enterococcus faecalis is a serious problem for hospitals and can spread from patient to patient. Most of the current detection methods are associated with limitations associated with the need for trained personnel; they are also time-consuming. Thus, it is necessary to develop rapid and accurate detection methods to control the spread of E. faecalis. In this study, we developed a rapid and accurate detection method for E. faecalis using recombinase polymerase amplification (RPA) combined with a lateral flow strip (LFS). This method could be completed in approximately 35 min at 37°C. The limit of detection was 10 CFU/µL, irrespective of whether the templates were pure or complex. This method also showed good specificity and compatibility. In total, 278 clinical samples were tested using the RPA-LFS method; the detection accuracy was equal to that of the conventional qPCR method. This visualized isothermal amplification method could be useful for the future on-site detection of E. faecalis.
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Affiliation(s)
- Bo Zhu
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Juan Hu
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang (Cancer Hospital of Lianyungang), Lianyungang, China
| | - Xuelian Li
- Department of Medicine Laboratory, The Fourth People's Hospital of Lianyungang, Lianyungang, China
| | - Xiaomin Li
- Department of Oncology, Lianyungang Second People’s Hospital Affiliated to Bengbu Medical College (Lianyungang Hospital Affiliated to Jiangsu University), Lianyungang, China
| | - Lei Wang
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang (Cancer Hospital of Lianyungang), Lianyungang, China
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Shihui Fan
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Xin Jin
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Kun Wang
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang (Cancer Hospital of Lianyungang), Lianyungang, China
| | - Weiguo Zhao
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Wenjun Zhu
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang (Cancer Hospital of Lianyungang), Lianyungang, China
- *Correspondence: Wenjun Zhu, ; Cheng Chen, ; Zilu Wang, ; Yingzhi Lu,
| | - Cheng Chen
- Department of Oncology, Lianyungang Second People’s Hospital Affiliated to Bengbu Medical College (Lianyungang Hospital Affiliated to Jiangsu University), Lianyungang, China
- *Correspondence: Wenjun Zhu, ; Cheng Chen, ; Zilu Wang, ; Yingzhi Lu,
| | - Zilu Wang
- Vascular Surgery, The Second People's Hospital of Lianyungang (Cancer Hospital of Lianyungang), Lianyungang, China
- *Correspondence: Wenjun Zhu, ; Cheng Chen, ; Zilu Wang, ; Yingzhi Lu,
| | - Yingzhi Lu
- Department of Oncology, Lianyungang Second People’s Hospital Affiliated to Bengbu Medical College (Lianyungang Hospital Affiliated to Jiangsu University), Lianyungang, China
- *Correspondence: Wenjun Zhu, ; Cheng Chen, ; Zilu Wang, ; Yingzhi Lu,
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3
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Abstract
Solar-to-chemical energy conversion via heterogeneous photocatalysis is one of the sustainable approaches to tackle the growing environmental and energy challenges. Among various promising photocatalytic materials, plasmonic-driven photocatalysts feature prominent solar-driven surface plasmon resonance (SPR). Non-noble plasmonic metals (NNPMs)-based photocatalysts have been identified as a unique alternative to noble metal-based ones due to their advantages like earth-abundance, cost-effectiveness, and large-scale application capability. This review comprehensively summarizes the most recent advances in the synthesis, characterization, and properties of NNPMs-based photocatalysts. After introducing the fundamental principles of SPR, the attributes and functionalities of NNPMs in governing surface/interfacial photocatalytic processes are presented. Next, the utilization of NNPMs-based photocatalytic materials for the removal of pollutants, water splitting, CO2 reduction, and organic transformations is discussed. The review concludes with current challenges and perspectives in advancing the NNPMs-based photocatalysts, which are timely and important to plasmon-based photocatalysis, a truly interdisciplinary field across materials science, chemistry, and physics.
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Affiliation(s)
- Mahmoud Sayed
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, P.R. China.,Chemistry Department, Faculty of Science, Fayoum University, Fayoum 63514, Egypt.,State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, P.R. China
| | - Jiaguo Yu
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, P.R. China.,State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, P.R. China.,College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, Hunan, P.R. China
| | - Gang Liu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P.R. China
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
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Thanh Tam HT, Kajikawa K. Extraordinary transmission of gold-capped sphere arrays in mid-infrared range. OPTICS EXPRESS 2021; 29:35191-35205. [PMID: 34808958 DOI: 10.1364/oe.439357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
We report an extraordinary transmission (EOT) of gold-capped silica microsphere monolayers in the mid-infrared range of 5-25 μm. The observed transmittance is significantly greater than that of a flat gold film with the same thickness, although the surface of the microsphere monolayer appeared to be completely covered with gold when observing from above. The calculations based on the finite difference time domain method indicate that light passes through the openings between the gold coating on the substrate and that on the microspheres. The EOT-type studied here occurs over the mid-infrared wavelength range, thus indicating that it is not attributable to the resonance of the surface plasmons. This type of EOT is absent in the visible and near infrared wavelength range, where gold does not function as an ideal metal. In addition, spectral modification originating from localized phonon polariton resonance (LPhPR) in silica microsphere is observed. LPhPR can be interpreted based on the analogy of the localized surface plasmon resonance in metallic nanospheres, in the visible or ultraviolet wavelength range.
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Kim DM, Park JS, Jung SW, Yeom J, Yoo SM. Biosensing Applications Using Nanostructure-Based Localized Surface Plasmon Resonance Sensors. SENSORS (BASEL, SWITZERLAND) 2021; 21:3191. [PMID: 34064431 PMCID: PMC8125509 DOI: 10.3390/s21093191] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 01/06/2023]
Abstract
Localized surface plasmon resonance (LSPR)-based biosensors have recently garnered increasing attention due to their potential to allow label-free, portable, low-cost, and real-time monitoring of diverse analytes. Recent developments in this technology have focused on biochemical markers in clinical and environmental settings coupled with advances in nanostructure technology. Therefore, this review focuses on the recent advances in LSPR-based biosensor technology for the detection of diverse chemicals and biomolecules. Moreover, we also provide recent examples of sensing strategies based on diverse nanostructure platforms, in addition to their advantages and limitations. Finally, this review discusses potential strategies for the development of biosensors with enhanced sensing performance.
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Affiliation(s)
- Dong Min Kim
- Center for Applied Life Science, Hanbat National University, Daejeon 34158, Korea;
| | - Jong Seong Park
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (J.S.P.); (S.-W.J.); (J.Y.)
| | - Seung-Woon Jung
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (J.S.P.); (S.-W.J.); (J.Y.)
| | - Jinho Yeom
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (J.S.P.); (S.-W.J.); (J.Y.)
| | - Seung Min Yoo
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (J.S.P.); (S.-W.J.); (J.Y.)
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6
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Chandraker SK, Lal M, Ghosh MK, Tiwari V, Ghorai TK, Shukla R. Green synthesis of copper nanoparticles using leaf extract of Ageratum houstonianum Mill. and study of their photocatalytic and antibacterial activities. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/ab8e99] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract
The novel copper nanoparticles (CuNPs) were synthesized using aqueous leaf extract of Ageratum houstonianum Mill. (AHLE). The green synthesized AH-CuNPs have a useful dye degradation property in the existence of daylight. The photocatalytic activity of AH-CuNPs was evaluated against an azo dye congo red (CR), whereas, same NPs displayed no effect on other dyes. The CR was completely degraded within 2 h, and the reaction rate was followed by pseudo-first-order kinetics, and the rate constant was recorded 3.1 × 10−4 s−1, (R2 = 0.9359). Antibacterial activity of green synthesized AH-CuNPs was studied against gram-negative bacterium Escherichia coli (MTCC no. 40), and a significant growth inhibition was recorded with 12.43 ± 0.233 mm zone of inhibition. The AH-CuNPs were characterized through UV-visible spectroscopy, XRD, SEM, FT-IR, TEM, and zeta particle size analyzer. Ageratum houstonianum mediated green synthesized copper nanoparticles (AH-CuNPs) were cubic, hexagonal, and rectangular in shape, with average size of ∼80 nm. The optical band gap was 4.5 eV, which was investigated using UV-visible spectroscopy, and the band gap value revealed that AH-CuNPs were semiconductor materials.
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Abstract
Plasmonic-active nanomaterials are of high interest to scientists because of their expanding applications in the field for medicine and energy. Chemical and biological sensors based on plasmonic nanomaterials are well-established and commercially available, but the role of plasmonic nanomaterials on photothermal therapeutics, solar cells, super-resolution imaging, organic synthesis, etc. is still emerging. The effectiveness of the plasmonic materials on these technologies depends on their stability and sensitivity. Preparing plasmonics-active nanostructured thin films (PANTFs) on a solid substrate improves their physical stability. More importantly, the surface plasmons of thin film and that of nanostructures can couple in PANTFs enhancing the sensitivity. A PANTF can be used as a transducer for any of the three plasmonic-based sensing techniques, namely, the propagating surface plasmon, localized surface plasmon resonance, and surface-enhanced Raman spectroscopy-based sensing techniques. Additionally, continuous nanostructured metal films have an advantage for implementing electrical controls such as simultaneous sensing using both plasmonic and electrochemical techniques. Although research and development on PANTFs have been rapidly advancing, very few reviews on synthetic methods have been published. In this review, we provide some fundamental and practical aspects of plasmonics along with the recent advances in PANTFs synthesis, focusing on the advantages and shortcomings of the fabrication techniques. We also provide an overview of different types of PANTFs and their sensitivity for biosensing.
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8
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Nazari-Vanani R, Sattarahmady N, Yadegari H, Khatami M, Heli H. Electrochemical biosensing of 16s rRNA gene sequence of Enterococcus faecalis. Biosens Bioelectron 2019; 142:111541. [DOI: 10.1016/j.bios.2019.111541] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/24/2019] [Accepted: 07/25/2019] [Indexed: 12/11/2022]
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9
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Toma M, Tawa K. Plasmonic coloration of silver nanodome arrays for a smartphone-based plasmonic biosensor. NANOSCALE ADVANCES 2019; 1:3699-3708. [PMID: 36133538 PMCID: PMC9417651 DOI: 10.1039/c9na00315k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 08/03/2019] [Indexed: 05/17/2023]
Abstract
In this study, the utility of plasmonic coloration on silver nanodome arrays for sensitive and quantitative detection of biomolecules using a smartphone-based sensor is proposed. In particular, a quantitative analysis of DNA hybridization was achieved using the hue angle in the HSV color space obtained from a photograph of a sensing spot taken using a smartphone camera. Silver and gold nanodome arrays consisting of a polystyrene bead layer covered with a thin metal film can be created over a large area by a bottom-up fabrication process. The metal nanodome arrays exhibited unique colorations which can be tuned by the dome diameter ϕ, metal species, and refractive index of the surrounding medium. The measurement of the bulk refractive index sensitivity revealed that the Ag nanodome with ϕ = 500 nm can provide the highest sensitivity of up to 588 nm per refractive index unit. The detection of DNA hybridization was performed by using a bimetallic nanodome consisting of silver and thin gold overlayers and DNA modified gold nanoparticles (AuNPs) for enhancing the sensor signals. Upon the immobilization of AuNPs, the Ag nanodome (ϕ = 200 nm) exhibited a large shift in the resonance wavelength accompanied by a dramatic change in coloration. The analysis of detection sensitivity of DNA hybridization using a model system revealed that colorimetric detection based on hue can be used for the quantitative detection of biomolecules in the same manner as the spectroscopic method with a few pM level of detectable concentration.
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Affiliation(s)
- Mana Toma
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University Sanda Japan 669-1337
| | - Keiko Tawa
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University Sanda Japan 669-1337
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10
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Haraguchi H, Frese N, Gölzhäuser A, Takei H. Protection of silver and gold LSPR biosensors in corrosive NaCl environment by short alkanethiol molecules; characterized by extinction spectrum, helium ion microscopy and SERS. RSC Adv 2019; 9:9565-9576. [PMID: 35520752 PMCID: PMC9062164 DOI: 10.1039/c8ra09778j] [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: 11/28/2018] [Accepted: 03/15/2019] [Indexed: 12/02/2022] Open
Abstract
We investigated the utility of localized surface plasmon resonance sensors in a biologically relevant environment containing NaCl. Our sensors are fabricated by depositing gold or silver on a monolayer of adsorbed monodisperse SiO2 nanospheres. While silver nanostructures are rather unstable in air and water as assessed by drifts in the extinction peak, even gold nanostructures have been found to drift at elevated NaCl concentrations. In an attempt to protect these nanostructures against NaCl, we modified them with alkanethiols with different lengths in the vapor phase and found that shorter chain alkanethiols such as 1-butanethiol are particularly effective against even 250 mM NaCl, rather than longer-chain alkanethiols more suitable for robust SAM formation. A vapor phase treatment method, in contrast to widely used solution phase treatment methods, was selected with the intention of reducing the solvent effect, i.e. destruction of intricate nanostructures upon contact with a solvent when nanostructures have been prepared in a vacuum system. Moreover, the treatment with 1-butanethiol led to an enhanced sensitivity as expressed by peak shift in nm per refractive index unit, nm per RIU. We show the results of evaluating alkanethiol-protected silver and gold nanostructures by extinction spectroscopy, helium ion microscopy and surface-enhanced Raman spectroscopy. The vapor phase treatment method with short chain alkanethiols is an effective way to protect intricate gold and silver nanostructures prepared in a vacuum system.
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Affiliation(s)
- Hazuki Haraguchi
- Graduate School of Life Sciences, Toyo University Gunma 374-0193 Japan
| | - Natalie Frese
- Physics of Supramolecular Systems and Surfaces, Bielefeld University 33615 Bielefeld Germany
| | - Armin Gölzhäuser
- Physics of Supramolecular Systems and Surfaces, Bielefeld University 33615 Bielefeld Germany
| | - Hiroyuki Takei
- Faculty of Life Sciences, Toyo University Gunma 374-0193 Japan +81-276-82-9020
- Bio-Nano Electronics Research Centre, Toyo University Saitama 350-0815 Japan
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11
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A Short Review on the Role of the Metal-Graphene Hybrid Nanostructure in Promoting the Localized Surface Plasmon Resonance Sensor Performance. SENSORS 2019; 19:s19040862. [PMID: 30791430 PMCID: PMC6412767 DOI: 10.3390/s19040862] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/13/2019] [Accepted: 02/15/2019] [Indexed: 01/18/2023]
Abstract
Localized Surface Plasmon Resonance (LSPR) sensors have potential applications in essential and important areas such as bio-sensor technology, especially in medical applications and gas sensors in environmental monitoring applications. Figure of Merit (FOM) and Sensitivity (S) measurements are two ways to assess the performance of an LSPR sensor. However, LSPR sensors suffer low FOM compared to the conventional Surface Plasmon Resonance (SPR) sensor due to high losses resulting from radiative damping of LSPs waves. Different methodologies have been utilized to enhance the performance of LSPR sensors, including various geometrical and material parameters, plasmonic wave coupling from different structures, and integration of noble metals with graphene, which is the focus of this report. Recent studies of metal-graphene hybrid plasmonic systems have shown its capability of promoting the performance of the LSPR sensor to a level that enhances its chance for commercialization. In this review, fundamental physics, the operation principle, and performance assessment of the LSPR sensor are presented followed by a discussion of plasmonic materials and a summary of methods used to optimize the sensor’s performance. A focused review on metal-graphene hybrid nanostructure and a discussion of its role in promoting the performance of the LSPR sensor follow.
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12
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Mariani S, Robbiano V, Strambini LM, Debrassi A, Egri G, Dähne L, Barillaro G. Layer-by-layer biofunctionalization of nanostructured porous silicon for high-sensitivity and high-selectivity label-free affinity biosensing. Nat Commun 2018; 9:5256. [PMID: 30531860 PMCID: PMC6288083 DOI: 10.1038/s41467-018-07723-8] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 11/20/2018] [Indexed: 12/03/2022] Open
Abstract
Nanostructured materials premise to revolutionize the label-free biosensing of analytes for clinical applications, leveraging the deeper interaction between materials and analytes with comparable size. However, when the characteristic dimension of the materials reduces to the nanoscale, the surface functionalization for the binding of bioreceptors becomes a complex issue that can affect the performance of label-free biosensors. Here we report on an effective and robust route for surface biofunctionalization of nanostructured materials based on the layer-by-layer (LbL) electrostatic nano-assembly of oppositely-charged polyelectrolytes, which are engineered with bioreceptors to enable label-free detection of target analytes. LbL biofunctionalization is demonstrated using nanostructured porous silicon (PSi) interferometers for affinity detection of streptavidin in saliva, through LbL nano-assembly of a bi-layer of positively-charged poly(allylamine hydrochloride) (PAH) and negatively-charged biotinylated poly(methacrylic acid) (b-PMAA). High sensitivity in streptavidin detection is achieved, with high selectivity and stability, down to a detection limit of 600 fM.
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Affiliation(s)
- Stefano Mariani
- Dipartimento di Ingegneria dell'Informazione, Università di Pisa, Via G. Caruso 16, 56122, Pisa, Italy
| | - Valentina Robbiano
- Dipartimento di Ingegneria dell'Informazione, Università di Pisa, Via G. Caruso 16, 56122, Pisa, Italy
| | - Lucanos M Strambini
- Istituto di Elettronica e di Ingegneria dell'Informazione e delle Telecomunicazioni, Consiglio Nazionale delle Ricerche, Via G. Caruso 16, 56122, Pisa, Italy
| | - Aline Debrassi
- Surflay Nanotec GmbH, Max-Planck-Straße 3, 12489, Berlin, Germany
| | - Gabriela Egri
- Surflay Nanotec GmbH, Max-Planck-Straße 3, 12489, Berlin, Germany
| | - Lars Dähne
- Surflay Nanotec GmbH, Max-Planck-Straße 3, 12489, Berlin, Germany
| | - Giuseppe Barillaro
- Dipartimento di Ingegneria dell'Informazione, Università di Pisa, Via G. Caruso 16, 56122, Pisa, Italy.
- Istituto di Elettronica e di Ingegneria dell'Informazione e delle Telecomunicazioni, Consiglio Nazionale delle Ricerche, Via G. Caruso 16, 56122, Pisa, Italy.
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13
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Nasseri B, Soleimani N, Rabiee N, Kalbasi A, Karimi M, Hamblin MR. Point-of-care microfluidic devices for pathogen detection. Biosens Bioelectron 2018; 117:112-128. [PMID: 29890393 PMCID: PMC6082696 DOI: 10.1016/j.bios.2018.05.050] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/22/2018] [Accepted: 05/28/2018] [Indexed: 12/22/2022]
Abstract
The rapid diagnosis of pathogens is crucial in the early stages of treatment of diseases where the choice of the correct drug can be critical. Although conventional cell culture-based techniques have been widely utilized in clinical applications, newly introduced optical-based, microfluidic chips are becoming attractive. The advantages of the novel methods compared to the conventional techniques comprise more rapid diagnosis, lower consumption of patient sample and valuable reagents, easy application, and high reproducibility in the detection of pathogens. The miniaturized channels used in microfluidic systems simulate interactions between cells and reagents in microchannel structures, and evaluate the interactions between biological moieties to enable diagnosis of microorganisms. The overarching goal of this review is to provide a summary of the development of microfluidic biochips and to comprehensively discuss different applications of microfluidic biochips in the detection of pathogens. New types of microfluidic systems and novel techniques for viral pathogen detection (e.g. HIV, HVB, ZIKV) are covered. Next generation techniques relying on high sensitivity, specificity, lower consumption of precious reagents, suggest that rapid generation of results can be achieved via optical based detection of bacterial cells. The introduction of smartphones to replace microscope based observation has substantially improved cell detection, and allows facile data processing and transfer for presentation purposes.
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Affiliation(s)
- Behzad Nasseri
- Departments of Microbiology and Microbial Biotechnology and Nanobiotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran; Chemical Engineering Deptartment and Bioengineeing Division, Hacettepe University, 06800 Beytepe, Ankara, Turkey.
| | - Neda Soleimani
- Departments of Microbiology and Microbial Biotechnology and Nanobiotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran.
| | - Navid Rabiee
- Department of Chemistry, Shahid Beheshti University, Tehran, Iran.
| | - Alireza Kalbasi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.
| | - Mahdi Karimi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran; Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA.
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14
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Kim S, Kim JM, Park JE, Nam JM. Nonnoble-Metal-Based Plasmonic Nanomaterials: Recent Advances and Future Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704528. [PMID: 29572964 DOI: 10.1002/adma.201704528] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 11/17/2017] [Indexed: 06/08/2023]
Abstract
The application scope of plasmonic nanostructures is rapidly expanding to keep pace with the ongoing development of various scientific findings and emerging technologies. However, most plasmonic nanostructures heavily depend on rare, expensive, and extensively studied noble metals such as Au and Ag, with the limited choice of elements hindering their broad and practical applications in a wide spectral range. Therefore, abundant and inexpensive nonnoble metals have attracted attention as new plasmonic nanomaterial components, allowing these nonnoble-metal-based materials to be used in areas such as photocatalysis, sensing, nanoantennas, metamaterials, and magnetoplasmonics with new compositions, structures, and properties. Furthermore, the use of nonnoble metal hybrids results in newly emerging or synergistic properties not observed from single-metal component systems. Here, the synthetic strategies and recent advances in nonnoble-metal-based plasmonic nanostructures comprising Cu, Al, Mg, In, Ga, Pb, Ni, Co, Fe, and related hybrids are highlighted, and a discussion and perspectives in their synthesis, properties, applications, and challenges are presented.
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Affiliation(s)
- Sungi Kim
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Jae-Myoung Kim
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Jeong-Eun Park
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Jwa-Min Nam
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
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15
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A novel and ultrasensitive electrochemical DNA biosensor based on an ice crystals-like gold nanostructure for the detection of Enterococcus faecalis gene sequence. Colloids Surf B Biointerfaces 2018; 166:245-253. [DOI: 10.1016/j.colsurfb.2018.03.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 02/22/2018] [Accepted: 03/18/2018] [Indexed: 12/13/2022]
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16
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Choi Y, Hwang JH, Lee SY. Recent Trends in Nanomaterials-Based Colorimetric Detection of Pathogenic Bacteria and Viruses. SMALL METHODS 2018; 2:1700351. [PMID: 32328530 PMCID: PMC7169612 DOI: 10.1002/smtd.201700351] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Indexed: 05/15/2023]
Abstract
Rapid, sensitive, selective, convenient, and cost-effective pathogen diagnosis is important to prevent further spread of pandemic diseases, minimize social and economic losses, and to facilitate right clinical therapy. Over the past few years, various sensor-based diagnostic systems outperforming conventional pathogenic diagnostic assays have been developed. Among them, colorimetric biosensors detecting target molecules by the naked eye have attracted much attention due to their simplicity, practicality, and cost-effectiveness. Recently, nanomaterials have been adopted as a versatile signal transduction and amplification tool for rapid and sensitive detection of pathogenic bacteria and viruses. Here, recent trends and advances are reviewed in detecting and diagnosing pathogenic bacteria and viruses using colorimetric biosensors employing various nanomaterials. In addition, it is discussed how nanomaterials and bioreceptors can be better integrated together to develop rapid and sensitive colorimetric detection system in the future.
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Affiliation(s)
- Yoojin Choi
- Metabolic and Biomolecular Engineering National Research LaboratoryDepartment of Chemical and Biomolecular Engineering (BK21 Plus Program), and Institute for the BioCenturyKorea Advanced Institute of Science and Technology291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
| | - Ji Hyeon Hwang
- Metabolic and Biomolecular Engineering National Research LaboratoryDepartment of Chemical and Biomolecular Engineering (BK21 Plus Program), and Institute for the BioCenturyKorea Advanced Institute of Science and Technology291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
| | - Sang Yup Lee
- Metabolic and Biomolecular Engineering National Research LaboratoryDepartment of Chemical and Biomolecular Engineering (BK21 Plus Program), and Institute for the BioCenturyKorea Advanced Institute of Science and Technology291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
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17
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Jackman JA, Rahim Ferhan A, Cho NJ. Nanoplasmonic sensors for biointerfacial science. Chem Soc Rev 2018; 46:3615-3660. [PMID: 28383083 DOI: 10.1039/c6cs00494f] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In recent years, nanoplasmonic sensors have become widely used for the label-free detection of biomolecules across medical, biotechnology, and environmental science applications. To date, many nanoplasmonic sensing strategies have been developed with outstanding measurement capabilities, enabling detection down to the single-molecule level. One of the most promising directions has been surface-based nanoplasmonic sensors, and the potential of such technologies is still emerging. Going beyond detection, surface-based nanoplasmonic sensors open the door to enhanced, quantitative measurement capabilities across the biointerfacial sciences by taking advantage of high surface sensitivity that pairs well with the size of medically important biomacromolecules and biological particulates such as viruses and exosomes. The goal of this review is to introduce the latest advances in nanoplasmonic sensors for the biointerfacial sciences, including ongoing development of nanoparticle and nanohole arrays for exploring different classes of biomacromolecules interacting at solid-liquid interfaces. The measurement principles for nanoplasmonic sensors based on utilizing the localized surface plasmon resonance (LSPR) and extraordinary optical transmission (EOT) phenomena are first introduced. The following sections are then categorized around different themes within the biointerfacial sciences, specifically protein binding and conformational changes, lipid membrane fabrication, membrane-protein interactions, exosome and virus detection and analysis, and probing nucleic acid conformations and binding interactions. Across these themes, we discuss the growing trend to utilize nanoplasmonic sensors for advanced measurement capabilities, including positional sensing, biomacromolecular conformation analysis, and real-time kinetic monitoring of complex biological interactions. Altogether, these advances highlight the rich potential of nanoplasmonic sensors and the future growth prospects of the community as a whole. With ongoing development of commercial nanoplasmonic sensors and analytical models to interpret corresponding measurement data in the context of biologically relevant interactions, there is significant opportunity to utilize nanoplasmonic sensing strategies for not only fundamental biointerfacial science, but also translational science applications related to clinical medicine and pharmaceutical drug development among countless possibilities.
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Affiliation(s)
- Joshua A Jackman
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
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Abstract
INTRODUCTION Bioanalytical sensing based on the principle of localized surface plasmon resonance experiences is currently an extremely rapid development. Novel sensors with new kinds of plasmonic transducers and innovative concepts for the signal development as well as read-out principles were identified. This review will give an overview of the development of this field. Areas covered: The focus is primarily on types of transducers by preparation or dimension, factors for optimal sensing concepts and the critical view of the usability of these devices as innovative sensors for bioanalytical applications. Expert commentary: Plasmonic sensor devices offer a high potential for future biosensing given that limiting factors such as long-time stability of the transducers, the required high sensitivity and the cost-efficient production are addressed. For higher sensitivity, the design of the sensor in shape and material has to be combined with optimal enhancement strategies. Plasmonic nanoparticles from bottom-up synthesis with a post-synthetic processing show a high potential for cost-efficient sensor production. Regarding the measurement principle, LSPRi offers a large potential for multiplex sensors and can provide a high-throughput as well as highly paralleled sensing. The main trends are expected towards optimal LSPR concepts which represent cost-efficient and robust point-of-care solutions, and the use of multiplexed devices for clinical applications.
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Affiliation(s)
- Andrea Csáki
- a Department Nanobiophotonics , Leibniz Institute of Photonic Technology (IPHT) , Jena , Germany
| | - Ondrej Stranik
- a Department Nanobiophotonics , Leibniz Institute of Photonic Technology (IPHT) , Jena , Germany
| | - Wolfgang Fritzsche
- a Department Nanobiophotonics , Leibniz Institute of Photonic Technology (IPHT) , Jena , Germany
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Krishna VD, Wu K, Su D, Cheeran MCJ, Wang JP, Perez A. Nanotechnology: Review of concepts and potential application of sensing platforms in food safety. Food Microbiol 2018; 75:47-54. [PMID: 30056962 DOI: 10.1016/j.fm.2018.01.025] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 01/26/2018] [Accepted: 01/30/2018] [Indexed: 12/13/2022]
Abstract
In recent years a number of new nanotechnology based platforms have been developed for detection of wide variety of targets including infectious agents, protein biomarkers, nucleic acids, drugs, and cancer cells. Nanomaterials such as magnetic nanoparticles, quantum dots, carbon nanotubes, nanowires, and nanosensors like giant magnetoresistance (GMR) sensors are used to quantitatively detect biomolecules with, experimentally, relatively good accuracy. There has been a growing interest in the use of magnetic fields in biosensing applications. Because biological samples have no ferromagnetic property and therefore there is no interference with complex sample matrix, detection of infectious agents from minimally processed samples is possible. Here, we provide a brief overview of the recent emergence of nanotechnology-based techniques for the detection and monitoring of foodborne diseases. In addition, the potential applications and future perspectives of nanotechnology on food safety are discussed. Ultimately, the review is expected to stimulate and provide directions to the development and application of nanotechnology-based tests for the early detection, and eventual control of foodborne diseases.
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Affiliation(s)
- Venkatramana D Krishna
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA
| | - Kai Wu
- The Center for Micromagnetics and Information Technologies (MINT) & Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Diqing Su
- The Center for Micromagnetics and Information Technologies (MINT) & Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA; Department of Chemical Engineering and Material Science, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Maxim C J Cheeran
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA
| | - Jian-Ping Wang
- The Center for Micromagnetics and Information Technologies (MINT) & Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Andres Perez
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.
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Chocarro-Ruiz B, Fernández-Gavela A, Herranz S, Lechuga LM. Nanophotonic label-free biosensors for environmental monitoring. Curr Opin Biotechnol 2017; 45:175-183. [PMID: 28458110 DOI: 10.1016/j.copbio.2017.03.016] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/02/2017] [Accepted: 03/03/2017] [Indexed: 12/25/2022]
Abstract
The field of environmental monitoring has experienced a substantial progress in the last years but still the on-site control of contaminants is an elusive problem. In addition, the growing number of pollutant sources is accompanied by an increasing need of having efficient early warning systems. Several years ago biosensor devices emerged as promising environmental monitoring tools, but their level of miniaturization and their fully operation outside the laboratory prevented their use on-site. In the last period, nanophotonic biosensors based on evanescent sensing have emerged as an outstanding choice for portable point-of-care diagnosis thanks to their capability, among others, of miniaturization, multiplexing, label-free detection and integration in lab-on-chip platforms. This review covers the most relevant nanophotonic biosensors which have been proposed (including interferometric waveguides, grating-couplers, microcavity resonators, photonic crystals and localized surface plasmon resonance sensors) and their recent application for environmental surveillance.
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Affiliation(s)
- Blanca Chocarro-Ruiz
- Nanobiosensors and Bioanalytical Applications Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, The Barcelona Institute of Science and Technology and CIBER-BBN, Campus UAB, Ed-ICN2, 08193 Bellaterra, Barcelona, Spain
| | - Adrián Fernández-Gavela
- Nanobiosensors and Bioanalytical Applications Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, The Barcelona Institute of Science and Technology and CIBER-BBN, Campus UAB, Ed-ICN2, 08193 Bellaterra, Barcelona, Spain
| | - Sonia Herranz
- Nanobiosensors and Bioanalytical Applications Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, The Barcelona Institute of Science and Technology and CIBER-BBN, Campus UAB, Ed-ICN2, 08193 Bellaterra, Barcelona, Spain
| | - Laura M Lechuga
- Nanobiosensors and Bioanalytical Applications Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, The Barcelona Institute of Science and Technology and CIBER-BBN, Campus UAB, Ed-ICN2, 08193 Bellaterra, Barcelona, Spain.
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Ballard ZS, Shir D, Bhardwaj A, Bazargan S, Sathianathan S, Ozcan A. Computational Sensing Using Low-Cost and Mobile Plasmonic Readers Designed by Machine Learning. ACS NANO 2017; 11:2266-2274. [PMID: 28128933 PMCID: PMC5451292 DOI: 10.1021/acsnano.7b00105] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Plasmonic sensors have been used for a wide range of biological and chemical sensing applications. Emerging nanofabrication techniques have enabled these sensors to be cost-effectively mass manufactured onto various types of substrates. To accompany these advances, major improvements in sensor read-out devices must also be achieved to fully realize the broad impact of plasmonic nanosensors. Here, we propose a machine learning framework which can be used to design low-cost and mobile multispectral plasmonic readers that do not use traditionally employed bulky and expensive stabilized light sources or high-resolution spectrometers. By training a feature selection model over a large set of fabricated plasmonic nanosensors, we select the optimal set of illumination light-emitting diodes needed to create a minimum-error refractive index prediction model, which statistically takes into account the varied spectral responses and fabrication-induced variability of a given sensor design. This computational sensing approach was experimentally validated using a modular mobile plasmonic reader. We tested different plasmonic sensors with hexagonal and square periodicity nanohole arrays and revealed that the optimal illumination bands differ from those that are "intuitively" selected based on the spectral features of the sensor, e.g., transmission peaks or valleys. This framework provides a universal tool for the plasmonics community to design low-cost and mobile multispectral readers, helping the translation of nanosensing technologies to various emerging applications such as wearable sensing, personalized medicine, and point-of-care diagnostics. Beyond plasmonics, other types of sensors that operate based on spectral changes can broadly benefit from this approach, including e.g., aptamer-enabled nanoparticle assays and graphene-based sensors, among others.
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Affiliation(s)
- Zachary S Ballard
- Electrical Engineering Department, ‡Bioengineering Department, and §California NanoSystems Institute (CNSI), University of California , Los Angeles, California 90095, United States
| | - Daniel Shir
- Electrical Engineering Department, ‡Bioengineering Department, and §California NanoSystems Institute (CNSI), University of California , Los Angeles, California 90095, United States
| | - Aashish Bhardwaj
- Electrical Engineering Department, ‡Bioengineering Department, and §California NanoSystems Institute (CNSI), University of California , Los Angeles, California 90095, United States
| | - Sarah Bazargan
- Electrical Engineering Department, ‡Bioengineering Department, and §California NanoSystems Institute (CNSI), University of California , Los Angeles, California 90095, United States
| | - Shyama Sathianathan
- Electrical Engineering Department, ‡Bioengineering Department, and §California NanoSystems Institute (CNSI), University of California , Los Angeles, California 90095, United States
| | - Aydogan Ozcan
- Electrical Engineering Department, ‡Bioengineering Department, and §California NanoSystems Institute (CNSI), University of California , Los Angeles, California 90095, United States
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Li YF, Dong FX, Chen Y, Zhang XL, Wang L, Bi YG, Tian ZN, Liu YF, Feng J, Sun HB. As-grown graphene/copper nanoparticles hybrid nanostructures for enhanced intensity and stability of surface plasmon resonance. Sci Rep 2016; 6:37190. [PMID: 27872494 PMCID: PMC5131648 DOI: 10.1038/srep37190] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 10/26/2016] [Indexed: 11/08/2022] Open
Abstract
The transfer-free fabrication of the high quality graphene on the metallic nanostructures, which is highly desirable for device applications, remains a challenge. Here, we develop the transfer-free method by direct chemical vapor deposition of the graphene layers on copper (Cu) nanoparticles (NPs) to realize the hybrid nanostructures. The graphene as-grown on the Cu NPs permits full electric contact and strong interactions, which results in a strong localization of the field at the graphene/copper interface. An enhanced intensity of the localized surface plasmon resonances (LSPRs) supported by the hybrid nanostructures can be obtained, which induces a much enhanced fluorescent intensity from the dye coated hybrid nanostructures. Moreover, the graphene sheets covering completely and uniformly on the Cu NPs act as a passivation layer to protect the underlying metal surface from air oxidation. As a result, the stability of the LSPRs for the hybrid nanostructures is much enhanced compared to that of the bare Cu NPs. The transfer-free hybrid nanostructures with enhanced intensity and stability of the LSPRs will enable their much broader applications in photonics and optoelectronics.
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Affiliation(s)
- Yun-Fei Li
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China
| | - Feng-Xi Dong
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China
| | - Yang Chen
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China
| | - Xu-Lin Zhang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China
| | - Lei Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China
| | - Yan-Gang Bi
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China
| | - Zhen-Nan Tian
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China
| | - Yue-Feng Liu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China
| | - Jing Feng
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China
| | - Hong-Bo Sun
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China
- College of Physics, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China
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Vorobyev SA, Saikova SV, Karimov EE. Synthesis of gelatin-stabilized concentrated hydrosols of copper nanoparticles. RUSS J GEN CHEM+ 2016. [DOI: 10.1134/s1070363216110220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Chen J, Park B. Recent Advancements in Nanobioassays and Nanobiosensors for Foodborne Pathogenic Bacteria Detection. J Food Prot 2016; 79:1055-69. [PMID: 27296612 DOI: 10.4315/0362-028x.jfp-15-516] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Bacterial pathogens are one of the leading causes of food safety incidents and product recalls worldwide. Timely detection and identification of microbial contamination in agricultural and food products is crucial for disease prevention and outbreak investigation. In efforts to improve and/or replace time-consuming and laborious "gold standards" for pathogen detection, numerous alternative rapid methods have been proposed in the past 15 years, with a trend toward incorporating nanotechnology and nanomaterials in food pathogen detection. This article is a review of the use of nanotechnology in various detection and sample preparation techniques and advancements in nanotechnology applications in food matrices. Some practical considerations in nanobioassay design are discussed, and the gaps between research status quo and market demands are identified.
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Affiliation(s)
- Jing Chen
- U.S. Department of Agriculture, Agricultural Research Service, U.S. National Poultry Research Center, 950 College Station Road, Athens, Georgia 30605, USA
| | - Bosoon Park
- U.S. Department of Agriculture, Agricultural Research Service, U.S. National Poultry Research Center, 950 College Station Road, Athens, Georgia 30605, USA.
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sardar S, Maity S, Pal S, Parvej H, Das N, Sepay N, Sarkar M, Halder UC. Facile synthesis and characterization of beta lactoglobulin–copper nanocomposites having antibacterial applications. RSC Adv 2016. [DOI: 10.1039/c6ra14162e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The synthesis of Cu0 nanoparticles and Cu–protein nanocomposites is a great challenge.
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Affiliation(s)
- Subrata sardar
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032
- India
| | - Sanhita Maity
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032
- India
| | - Sampa Pal
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032
- India
| | - Hasan Parvej
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032
- India
| | - Niloy Das
- Department of Chemistry
- Durgapur Govt. College
- Durgapur
- India
| | - Nayim Sepay
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032
- India
| | - Manas Sarkar
- Department of Physics
- Jadavpur University
- Kolkata – 700032
- India
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27
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Song L, Vijver MG, Peijnenburg WJGM, Galloway TS, Tyler CR. A comparative analysis on the in vivo toxicity of copper nanoparticles in three species of freshwater fish. CHEMOSPHERE 2015; 139:181-189. [PMID: 26121603 DOI: 10.1016/j.chemosphere.2015.06.021] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 05/02/2015] [Accepted: 06/08/2015] [Indexed: 06/04/2023]
Abstract
Copper nanoparticles (CuNPs) are used extensively in a wide range of products and the potential for toxicological impacts in the aquatic environment is of high concern. In this study, the fate and the acute toxicity of spherical 50nm copper nanoparticles was assessed in juvenile rainbow trout (Oncorhynchus mykiss), fathead minnow (Pimephales promelas) and zebrafish (Danio rerio) for in vivo aqueous exposures following standardized OECD 203 guideline tests. The fate of the CuNPs in the aqueous media was temperature dependent. At the higher study temperature (26±1°C), there was both an enhanced particle aggregation and higher rate of dissolution compared with that at the lower study temperature (15±1°C). 96h LC50s of the CuNPs were 0.68±0.15, 0.28±0.04 and 0.22±0.08mg Cu/L for rainbow trout, fathead minnow and zebrafish, respectively. The 96h lowest-observed-effect concentration (LOEC) for the CuNPs were 0.17, 0.023 and <0.023mg/L for rainbow trout, fathead minnow, and zebrafish respectively, and are below the predicted environmental concentration of CuNPs for some aquatic environments suggesting a possible ecotoxicological risk to fish. Soluble copper was one of main drivers for the acute toxicity of the copper nanoparticles suspensions. Both CuNPs suspension and copper nitrate caused damage to gill filaments and gill pavement cells, with differences in sensitivity for these effects between the fish species studied. We show therefore common toxicological effects of CuNPs in different fish species but with differences in sensitivity with implications for hazard extrapolation between fish species.
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Affiliation(s)
- Lan Song
- Institute of Environmental Sciences (CML), University Leiden, Leiden, The Netherlands.
| | - Martina G Vijver
- Institute of Environmental Sciences (CML), University Leiden, Leiden, The Netherlands
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences (CML), University Leiden, Leiden, The Netherlands; National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Tamara S Galloway
- Biosciences, College of Life and Environmental Sciences, University of Exeter, United Kingdom
| | - Charles R Tyler
- Biosciences, College of Life and Environmental Sciences, University of Exeter, United Kingdom
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28
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Yoo SM, Lee SY. Optical Biosensors for the Detection of Pathogenic Microorganisms. Trends Biotechnol 2015; 34:7-25. [PMID: 26506111 DOI: 10.1016/j.tibtech.2015.09.012] [Citation(s) in RCA: 292] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 08/28/2015] [Accepted: 09/17/2015] [Indexed: 12/21/2022]
Abstract
Pathogenic microorganisms are causative agents of various infectious diseases that are becoming increasingly serious worldwide. For the successful treatment of pathogenic infection, the rapid and accurate detection of multiple pathogenic microorganisms is of great importance in all areas related to health and safety. Among various sensor systems, optical biosensors allow easy-to-use, rapid, portable, multiplexed, and cost-effective diagnosis. Here, we review current trends and advances in pathogen-diagnostic optical biosensors. The technological and methodological approaches underlying diverse optical-sensing platforms and methods for detecting pathogenic microorganisms are reviewed, together with the strengths and drawbacks of each technique. Finally, challenges in developing efficient optical biosensor systems and future perspectives are discussed.
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Affiliation(s)
- Seung Min Yoo
- Metabolic and Biomolecular Engineering National Research Laboratory, Department of Chemical and Biomolecular Engineering (BK21 plus Program), BioProcess Engineering Research Center, KAIST, Daejeon 34141, Republic of Korea
| | - Sang Yup Lee
- Metabolic and Biomolecular Engineering National Research Laboratory, Department of Chemical and Biomolecular Engineering (BK21 plus Program), BioProcess Engineering Research Center, KAIST, Daejeon 34141, Republic of Korea.
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29
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Murasheva KS, Kochmarev KY, Vorob’ev SA, Saikova SV. Preparation and study of concentrated hydrosols of copper nanoparticles using of weak reducing agents. RUSS J GEN CHEM+ 2015. [DOI: 10.1134/s1070363215080010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Weber de Menezes J, Thesing A, Valsecchi C, Armas LEG, Brolo AG. Improving the performance of gold nanohole array biosensors by controlling the optical collimation conditions. APPLIED OPTICS 2015; 54:6502-6507. [PMID: 26367835 DOI: 10.1364/ao.54.006502] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An experimental investigation on how the bulk and surface sensitivities of gold nanohole arrays fabricated by interference lithography affect the degree of white light beam collimation is presented. The optical transmission response of nanohole arrays has been recorded by focused and collimated beam transmission spectra. The results show that both the bulk and surface sensitivities for the collimated case are much larger than for the focused case. In particular, the shape of the spectra was dependent on the degree of beam collimation. The results showed that improved sensing performance (around 3.5 times) and higher figure of merit (around 4.4 times) can be obtained by simply adjusting the incident/collection experimental conditions in transmission measurements.
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Cui H, Song W, Cao Z, Lu J. Simultaneous and sensitive detection of dual DNA targets via quantum dot-assembled amplification labels. LUMINESCENCE 2015; 31:281-7. [PMID: 26081829 DOI: 10.1002/bio.2959] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 05/13/2015] [Accepted: 05/14/2015] [Indexed: 01/02/2023]
Abstract
We describe a signal amplification assay for the simultaneous detection of HIV-1 and HIV-2 via a quantum dot (QD) layer-by-layer assembled polystyrene microsphere (PS) composite in a homogeneous format. The crucial point of this composite is the core-shell system. PS is utilized as the core and QDs as the shell. Based on the high affinity of streptavidin and biotin, QDs are assembled layer-by-layer on the surface of the PS as amplification labels. Biotinylated reporter probe is combined with the PS-QDs conjugate and then hybridized with target DNA immobilized on the surface of a 96-well plate. Using this approach, each target DNA corresponds to a large number of QDs and the fluorescence signal is greatly enhanced. Two QD colors (605 and 655 nm) are used to detect dual-target DNAs simultaneously. Taking advantage of the enzyme-free reaction and high sensitivity, this PS-QD-based sensor can be used in simple 'mix and detection' assays. Our results show that this technology has potential application in rapid point-of-care testing, gene expression studies, high-throughput screening and clinical diagnostics.
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Affiliation(s)
- Hongyan Cui
- School of Pharmacy, Key Laboratory of Smart Drug Delivery, Ministry of Education & PLA, Fudan University, Shanghai, China
| | - Wenqing Song
- School of Pharmacy, Key Laboratory of Smart Drug Delivery, Ministry of Education & PLA, Fudan University, Shanghai, China
| | - Zhijuan Cao
- School of Pharmacy, Key Laboratory of Smart Drug Delivery, Ministry of Education & PLA, Fudan University, Shanghai, China
| | - Jianzhong Lu
- School of Pharmacy, Key Laboratory of Smart Drug Delivery, Ministry of Education & PLA, Fudan University, Shanghai, China
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Song L, Vijver MG, Peijnenburg WJGM. Comparative toxicity of copper nanoparticles across three Lemnaceae species. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 518-519:217-224. [PMID: 25765374 DOI: 10.1016/j.scitotenv.2015.02.079] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 02/22/2015] [Accepted: 02/22/2015] [Indexed: 06/04/2023]
Abstract
Metallic nanoparticles can end up in aquatic ecosystems due to their widespread application. Even though the toxicological effects of metallic nanoparticles to a diversity of species have been reported extensively, the toxicological data achieved in different studies are not always comparable and little is known regarding the comparative toxicity of nanoparticles across species, as different test strategies and endpoints were applied. To attempt to fill this knowledge gap, Spirodela polyrhiza, Lemna minor and Wolffia arrhiza were exposed to 25 nm spherical copper nanoparticles to investigate the inhibiting effect of copper nanoparticle suspensions across species at three endpoints: total frond area, frond number and dry weight based relative growth rate. The total frond area based relative growth rate was found to be the most sensitive endpoint, with an EC50 of 1.15±0.09 mg/L for S. polyrhiza, 0.84±0.12 mg/L for L. minor and 0.64±0.05 mg/L for W. arrhiza. Both the particles and the copper ions contributed to the inhibiting effects of copper nanoparticle suspensions at all endpoints studied. Dose-response related inhibiting effects caused by the copper ions were found at all endpoints studied, whereas the particles only showed dose-response related inhibiting effects on the total frond area based relative growth rate. This suggests that different physiological processes are involved in case of exposure to particles and copper ions. W. arrhiza was found to be the most sensitive species tested and S. polyrhiza was the least sensitive species tested, when the inhibiting effect was evaluated based on the relative growth rate calculated from total frond area. These findings exemplify the importance of identifying the suitable endpoints of toxicity assessment and considering the intrinsic differences between species when evaluating the toxicological profile of metallic nanoparticles across species.
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Affiliation(s)
- Lan Song
- Institute of Environmental Sciences (CML), Leiden University, Leiden, The Netherlands
| | - Martina G Vijver
- Institute of Environmental Sciences (CML), Leiden University, Leiden, The Netherlands
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, Leiden, The Netherlands; National Institute for Public Health and the Environment, Bilthoven, The Netherlands
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33
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Multispot array combined with S1 nuclease-mediated elimination of unpaired nucleotides. BIOCHIP JOURNAL 2015. [DOI: 10.1007/s13206-015-9301-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Hill RT. Plasmonic biosensors. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 7:152-68. [PMID: 25377594 DOI: 10.1002/wnan.1314] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 09/19/2014] [Accepted: 09/29/2014] [Indexed: 11/11/2022]
Abstract
The unique optical properties of plasmon resonant nanostructures enable exploration of nanoscale environments using relatively simple optical characterization techniques. For this reason, the field of plasmonics continues to garner the attention of the biosensing community. Biosensors based on propagating surface plasmon resonances (SPRs) in films are the most well-recognized plasmonic biosensors, but there is great potential for the new, developing technologies to surpass the robustness and popularity of film-based SPR sensing. This review surveys the current plasmonic biosensor landscape with emphasis on the basic operating principles of each plasmonic sensing technique and the practical considerations when developing a sensing platform with the various techniques. The 'gold standard' film SPR technique is reviewed briefly, but special emphasis is devoted to the up-and-coming localized surface plasmon resonance and plasmonically coupled sensor technology.
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Affiliation(s)
- Ryan T Hill
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
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Sugawa K, Tamura T, Tahara H, Yamaguchi D, Akiyama T, Otsuki J, Kusaka Y, Fukuda N, Ushijima H. Metal-enhanced fluorescence platforms based on plasmonic ordered copper arrays: wavelength dependence of quenching and enhancement effects. ACS NANO 2013; 7:9997-10010. [PMID: 24090528 DOI: 10.1021/nn403925d] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Ordered arrays of copper nanostructures were fabricated and modified with porphyrin molecules in order to evaluate fluorescence enhancement due to the localized surface plasmon resonance. The nanostructures were prepared by thermally depositing copper on the upper hemispheres of two-dimensional silica colloidal crystals. The wavelength at which the surface plasmon resonance of the nanostructures was generated was tuned to a longer wavelength than the interband transition region of copper (>590 nm) by controlling the diameter of the underlying silica particles. Immobilization of porphyrin monolayers onto the nanostructures was achieved via self-assembly of 16-mercaptohexadecanoic acid, which also suppressed the oxidation of the copper surface. The maximum fluorescence enhancement of porphyrin by a factor of 89.2 was achieved as compared with that on a planar Cu plate (CuP) due to the generation of the surface plasmon resonance. Furthermore, it was found that while the fluorescence from the porphyrin was quenched within the interband transition region, it was efficiently enhanced at longer wavelengths. It was demonstrated that the enhancement induced by the proximity of the fluorophore to the nanostructures was enough to overcome the highly efficient quenching effects of the metal. From these results, it is speculated that the surface plasmon resonance of copper has tremendous potential for practical use as high functional plasmonic sensor and devices.
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Affiliation(s)
- Kosuke Sugawa
- Department of Materials and Applied Chemistry, College of Science Technology, Nihon University , Chiyoda, Tokyo 101-8308, Japan
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36
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Estevez MC, Otte MA, Sepulveda B, Lechuga LM. Trends and challenges of refractometric nanoplasmonic biosensors: a review. Anal Chim Acta 2013; 806:55-73. [PMID: 24331040 DOI: 10.1016/j.aca.2013.10.048] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 10/22/2013] [Accepted: 10/27/2013] [Indexed: 01/28/2023]
Abstract
Motivated by potential benefits such as sensor miniaturization, multiplexing opportunities and higher sensitivities, refractometric nanoplasmonic biosensing has profiled itself in a short time span as an interesting alternative to conventional Surface Plasmon Resonance (SPR) biosensors. This latter conventional sensing concept has been subjected during the last decades to strong commercialization, thereby strongly leaning on well-developed thin-film surface chemistry protocols. Not surprisingly, the examples found in literature based on this sensing concept are generally characterized by extensive analytical studies of relevant clinical and diagnostic problems. In contrast, the more novel Localized Surface Plasmon Resonance (LSPR) alternative finds itself in a much earlier, and especially, more fundamental stage of development. Driven by new fabrication methodologies to create nanostructured substrates, published work typically focuses on the novelty of the presented material, its optical properties and its use - generally limited to a proof-of-concept - as a label-free biosensing scheme. Given the different stages of development both SPR and LSPR sensors find themselves in, it becomes apparent that providing a comparative analysis of both concepts is not a trivial task. Nevertheless, in this review we make an effort to provide an overview that illustrates the progress booked in both fields during the last five years. First, we discuss the most relevant advances in SPR biosensing, including interesting analytical applications, together with different strategies that assure improvements in performance, throughput and/or integration. Subsequently, the remaining part of this work focuses on the use of nanoplasmonic sensors for real label-free biosensing applications. First, we discuss the motivation that serves as a driving force behind this research topic, together with a brief summary that comprises the main fabrication methodologies used in this field. Next, the sensing performance of LSPR sensors is examined by analyzing different parameters that can be invoked in order to quantitatively assess their overall sensing performance. Two aspects are highlighted that turn out to be especially important when trying to maximize their sensing performance, being (1) the targeted functionalization of the electromagnetic hotspots of the nanostructures, and (2) overcoming inherent negative influence that stem from the presence of a high refractive index substrate that supports the nanostructures. Next, although few in numbers, an overview is given of the most exhaustive and diagnostically relevant LSPR sensing assays that have been recently reported in literature, followed by examples that exploit inherent LSPR characteristics in order to create highly integrated and high-throughput optical biosensors. Finally, we discuss a series of considerations that, in our opinion, should be addressed in order to bring the realization of a stand-alone LSPR biosensor with competitive levels of sensitivity, robustness and integration (when compared to a conventional SPR sensor) much closer to reality.
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Affiliation(s)
- M-Carmen Estevez
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC & CIBER-BBN, ICN2 Building Campus UAB, 08193 Bellaterra, Barcelona, Spain.
| | - Marinus A Otte
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC & CIBER-BBN, ICN2 Building Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Borja Sepulveda
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC & CIBER-BBN, ICN2 Building Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Laura M Lechuga
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC & CIBER-BBN, ICN2 Building Campus UAB, 08193 Bellaterra, Barcelona, Spain
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Xie L, Yan X, Du Y. An aptamer based wall-less LSPR array chip for label-free and high throughput detection of biomolecules. Biosens Bioelectron 2013; 53:58-64. [PMID: 24121209 DOI: 10.1016/j.bios.2013.09.031] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 09/12/2013] [Accepted: 09/12/2013] [Indexed: 12/14/2022]
Abstract
Despite recent progress in localized surface plasmon resonance (LSPR) based bio-sensing, it remains challenging to achieve sensitive and high throughput LSPR detection with facilities available in common laboratories. Here we developed a wall-less LSPR array chip for facile, label-free and high throughput detection of biomolecules using a normal microplate reader. The wall-less LSPR array chip was fabricated by immobilizing plasmonic nanoparticles (NPs) on a hydrophilic-hydrophobic patterned glass slide, enabling high throughput detection. The wall-less configuration simplifies chip fabrication and sample processing, and enables miniaturization to significantly reduce sample and reagent consumption. A double-gold NPs enhanced system comprising of 13-nm-gold NPs conjugated to aptamer modified 39-nm-gold NPs on glass substrate was adopted to constitute competitive replacement assay for signal amplification in small molecule (i.e. ATP) detection. Upon enhancement, the detection sensitivity of ATP was augmented by 5 orders of magnitude from 0.01 µM to 100 µM measured by the laboratory microplate reader. The wall-less LSPR sensor chip can be widely applied for miniaturized and high throughput detection of a variety of targets in biomedical applications and environmental monitoring using facilities available in common laboratories.
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Affiliation(s)
- Liping Xie
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China
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38
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Yamada K, Ohkubo A, Esaka Y, Kanamori T, Masaki Y, Seio K, Sekine M. Base recognition of gap sites in DNA–DNA and DNA–RNA duplexes by short oligonucleotides. Bioorg Med Chem Lett 2013; 23:3448-51. [DOI: 10.1016/j.bmcl.2013.03.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 03/11/2013] [Accepted: 03/15/2013] [Indexed: 10/27/2022]
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39
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Valsecchi C, Brolo AG. Periodic metallic nanostructures as plasmonic chemical sensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:5638-49. [PMID: 23488664 DOI: 10.1021/la400085r] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Periodic plasmonic nanostructures are being widely studied, optimized, and developed to produce a new generation of low-cost and efficient chemical sensors and biosensors. The extensive variety of nanostructures, interrogation approaches, and setups makes a direct comparison of the reported performance from different sensing platforms a challenging exercise. In this feature Article, the most common parameters used for the evaluation of plasmonic nanostructures will be reviewed, with particular focus on the advances in periodic plasmonic nanostructures. Recent progress in the fabrication methods that allow for the high-volume production of periodic plasmonic sensors at low cost will be described, together with an assessment of the state of the art in terms of periodic structures employed for chemical sensing.
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Affiliation(s)
- Chiara Valsecchi
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
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40
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Carregal-Romero S, Caballero-Díaz E, Beqa L, Abdelmonem AM, Ochs M, Hühn D, Suau BS, Valcarcel M, Parak WJ. Multiplexed sensing and imaging with colloidal nano- and microparticles. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2013; 6:53-81. [PMID: 23451718 DOI: 10.1146/annurev-anchem-062012-092621] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Sensing and imaging with fluorescent, plasmonic, and magnetic colloidal nano- and microparticles have improved during the past decade. In this review, we describe the concepts and applications of how these techniques can be used in the multiplexed mode, that is, sensing of several analytes in parallel or imaging of several labels in parallel.
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41
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Joo J, Yim C, Kwon D, Lee J, Shin HH, Cha HJ, Jeon S. A facile and sensitive detection of pathogenic bacteria using magnetic nanoparticles and optical nanocrystal probes. Analyst 2012; 137:3609-12. [PMID: 22576145 DOI: 10.1039/c2an35369e] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We report a facile and sensitive analytical method for the detection of pathogenic bacteria. Salmonella bacteria in milk were captured by antibody-conjugated magnetic nanoparticles (MNPs) and separated from analyte samples by applying an external magnetic field. The MNP-Salmonella complexes were re-dispersed in a buffer solution then exposed to antibody-immobilized TiO(2) nanocrystals (TNs), which absorb UV light. After magnetically separating the MNP-Salmonella-TN complexes from solution, the UV-Vis absorption spectrum of the unbound TN solution was obtained. Because the light absorption intensity was reversely proportional to the Salmonella concentration, the assay exhibited high sensitivity toward low concentrations of Salmonella bacteria. The detection limit of Salmonella in milk was found to be more than 100 cfu mL(-1).
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Affiliation(s)
- Jinmyoung Joo
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea
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42
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Affiliation(s)
- Francis P. Zamborini
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292,
United States
| | - Lanlan Bao
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292,
United States
| | - Radhika Dasari
- Department
of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, United States
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