1
|
Ni B, Chu G, Xu Z, Hou L, Liu X, Xiong J. High Q-Factor, High Contrast, and Multi-Band Optical Sensor Based on Plasmonic Square Bracket Dimer Metasurface. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:421. [PMID: 38470752 DOI: 10.3390/nano14050421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024]
Abstract
A high-performance resonant metasurface is rather promising for diverse application areas such as optical sensing and filtering. Herein, a metal-insulator-metal (MIM) optical sensor with merits of a high quality-factor (Q-factor), multiple operating bands, and high spectrum contrast is proposed using plasmonic square bracket dimer metasurface. Due to the complex square bracket itself, a dimer structure of two oppositely placed square brackets, and metasurface array configuration, multiple kinds of mode coupling can be devised in the inner and outer elements within the metasurface, enabling four sensing channels with the sensitivities higher than 200 nm/RIU for refractive index sensing. Among them, the special sensing channel based on the reflection-type surface lattice resonance (SLR) mechanism has a full width at half maximum (FWHM) of only 2 nm, a high peak-to-dip signal contrast of 0.82, a high Q-factor of 548, and it can also behave as a good sensing channel for the thickness measurement of the deposition layer. The multi-band sensor can work normally in a large refractive index or thickness range, and the number of resonant channels can be further increased by simply breaking the structural symmetry or changing the polarization angle of incident light. Equipped with unique advantages, the suggested plasmonic metasurface has great potential in sensing, monitoring, filtering, and other applications.
Collapse
Affiliation(s)
- Bin Ni
- School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Guanghu Chu
- School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Zheyang Xu
- School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Lianping Hou
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Xuefeng Liu
- School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jichuan Xiong
- School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| |
Collapse
|
2
|
Kang J, Yoo YJ, Ko JH, Mahmud AA, Song YM. Trilayered Gires-Tournois Resonator with Ultrasensitive Slow-Light Condition for Colorimetric Detection of Bioparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:319. [PMID: 36678071 PMCID: PMC9865847 DOI: 10.3390/nano13020319] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Over the past few decades, advances in various nanophotonic structures to enhance light-matter interactions have opened numerous opportunities for biosensing applications. Beyond the successful development of label-free nanophotonic biosensors that utilize plasmon resonances in metals and Mie resonances in dielectrics, simpler structures are required to achieve improved sensor performance and multifunctionality, while enabling cost-effective fabrication. Here, we present a simple and effectual approach to colorimetric biosensing utilizing a trilayered Gires-Tournois (GT) resonator, which provides a sensitive slow-light effect in response to low refractive index (RI) substances and thus enables to distinguish low RI bioparticles from the background with spatially distinct color differences. For low RI sensitivity, by impedance matching based on the transmission line model, trilayer configuration enables the derivation of optimal designs to achieve the unity absorption condition in a low RI medium, which is difficult to obtain with the conventional GT configuration. Compared to conventional bilayered GT resonators, the trilayered GT resonator shows significant sensing performance with linear sensitivity in various situations with low RI substances. For extended applications, several proposed designs of trilayered GT resonators are presented in various material combinations by impedance matching using equivalent transmission line models. Further, comparing the color change of different substrates with low RI NPs using finite-difference time-domain (FDTD) simulations, the proposed GT structure shows surpassing colorimetric detection.
Collapse
Affiliation(s)
- Jiwon Kang
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Gwangju 61005, Republic of Korea
| | - Young Jin Yoo
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Gwangju 61005, Republic of Korea
| | - Joo Hwan Ko
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Gwangju 61005, Republic of Korea
| | - Abdullah Al Mahmud
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Gwangju 61005, Republic of Korea
| | - Young Min Song
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Gwangju 61005, Republic of Korea
- Anti-Viral Research Center, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Gwangju 61005, Republic of Korea
- Artificial Intelligence (AI) Graduate School, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Gwangju 61005, Republic of Korea
| |
Collapse
|
3
|
Barrios CA, Mirea T, Represa MH. A Self-Referenced Refractive Index Sensor Based on Gold Nanoislands. SENSORS (BASEL, SWITZERLAND) 2022; 23:66. [PMID: 36616664 PMCID: PMC9824277 DOI: 10.3390/s23010066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
We report on a self-referenced refractive index optical sensor based on Au nanoislands. The device consists of a random distribution of Au nanoislands formed by dewetting on a planar SiO2/metal Fabry-Pérot cavity. Experimental and theoretical studies of the reflectance of this configuration reveal that its spectral response results from a combination of two resonances: a localized surface plasmon resonance (LSPR) associated to the Au nanoislands and the lowest-order anti-symmetric resonance of the Fabry-Pérot cavity. When the device is immersed in different fluids, the LSPR contribution provides high sensitivity to refractive index variations of the fluid, whereas those refractive index changes have little impact on the Fabry-Pérot resonance wavelength, allowing its use as a reference signal. The self-referenced sensor exhibits a spectral sensitivity of 212 nm/RIU (RIU: refractive index unit), which is larger than those of similar structures, and an intensity sensitivity of 4.9 RIU-1. The proposed chip-based architecture and the low cost and simplicity of the Au nanoisland synthesis procedure make the demonstrated sensor a promising self-referenced plasmonic sensor for compact biosensing optical platforms based on reflection mode operation.
Collapse
Affiliation(s)
- Carlos Angulo Barrios
- Department of Photonics and Bioengineering, CEMDATIC, ETSI Telecomunicación, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
| | - Teona Mirea
- Department of Electronic Engineering, CEMDATIC, ETSI Telecomunicación, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
| | - Miguel Huerga Represa
- Department of Photonics and Bioengineering, CEMDATIC, ETSI Telecomunicación, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
| |
Collapse
|
4
|
Kulkarni MB, Ayachit NH, Aminabhavi TM. Recent Advancements in Nanobiosensors: Current Trends, Challenges, Applications, and Future Scope. BIOSENSORS 2022; 12:bios12100892. [PMID: 36291028 PMCID: PMC9599941 DOI: 10.3390/bios12100892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 05/30/2023]
Abstract
In recent years, there has been immense advancement in the development of nanobiosensors as these are a fundamental need of the hour that act as a potential candidate integrated with point-of-care-testing for several applications, such as healthcare, the environment, energy harvesting, electronics, and the food industry. Nanomaterials have an important part in efficiently sensing bioreceptors such as cells, enzymes, and antibodies to develop biosensors with high selectivity, peculiarity, and sensibility. It is virtually impossible in science and technology to perform any application without nanomaterials. Nanomaterials are distinguished from fine particles used for numerous applications as a result of being unique in properties such as electrical, thermal, chemical, optical, mechanical, and physical. The combination of nanostructured materials and biosensors is generally known as nanobiosensor technology. These miniaturized nanobiosensors are revolutionizing the healthcare domain for sensing, monitoring, and diagnosing pathogens, viruses, and bacteria. However, the conventional approach is time-consuming, expensive, laborious, and requires sophisticated instruments with skilled operators. Further, automating and integrating is quite a challenging process. Thus, there is a considerable demand for the development of nanobiosensors that can be used along with the POCT module for testing real samples. Additionally, with the advent of nano/biotechnology and the impact on designing portable ultrasensitive devices, it can be stated that it is probably one of the most capable ways of overcoming the aforementioned problems concerning the cumulative requirement for the development of a rapid, economical, and highly sensible device for analyzing applications within biomedical diagnostics, energy harvesting, the environment, food and water, agriculture, and the pharmaceutical industry.
Collapse
Affiliation(s)
- Madhusudan B. Kulkarni
- Department of Research & Development, Renalyx Health Systems (P) Limited, Bengaluru 560004, Karnataka, India
| | - Narasimha H. Ayachit
- Department of Physics, Visvesvaraya Technological University (VTU), Belagavi 590018, Karnataka, India
| | - Tejraj M. Aminabhavi
- School of Advanced Sciences, KLE Technological University, Hubballi 580031, Karnataka, India
| |
Collapse
|
5
|
Rahman BMA, Viphavakit C, Chitaree R, Ghosh S, Pathak AK, Verma S, Sakda N. Optical Fiber, Nanomaterial, and THz-Metasurface-Mediated Nano-Biosensors: A Review. BIOSENSORS 2022; 12:bios12010042. [PMID: 35049670 PMCID: PMC8773603 DOI: 10.3390/bios12010042] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 01/03/2022] [Accepted: 01/10/2022] [Indexed: 05/22/2023]
Abstract
The increasing use of nanomaterials and scalable, high-yield nanofabrication process are revolutionizing the development of novel biosensors. Over the past decades, researches on nanotechnology-mediated biosensing have been on the forefront due to their potential application in healthcare, pharmaceutical, cell diagnosis, drug delivery, and water and air quality monitoring. The advancement of nanoscale science relies on a better understanding of theory, manufacturing and fabrication practices, and the application specific methods. The topology and tunable properties of nanoparticles, a part of nanoscale science, can be changed by different manufacturing processes, which separate them from their bulk counterparts. In the recent past, different nanostructures, such as nanosphere, nanorods, nanofiber, core-shell nanoparticles, nanotubes, and thin films, have been exploited to enhance the detectability of labelled or label-free biological molecules with a high accuracy. Furthermore, these engineered-materials-associated transducing devices, e.g., optical waveguides and metasurface-based scattering media, widened the horizon of biosensors over a broad wavelength range from deep-ultraviolet to far-infrared. This review provides a comprehensive overview of the major scientific achievements in nano-biosensors based on optical fiber, nanomaterials and terahertz-domain metasurface-based refractometric, labelled and label-free nano-biosensors.
Collapse
Affiliation(s)
- B. M. Azizur Rahman
- School of Mathematics, Computer Science and Engineering, University of London, London EC1V 0HB, UK; (S.V.); (N.S.)
- Correspondence:
| | - Charusluk Viphavakit
- International School of Engineering and Intelligent Control Automation of Process Systems Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (C.V.); (A.K.P.)
| | - Ratchapak Chitaree
- Department of Physics, Faculty of Science, Mahidol University, Bangkok 10400, Thailand;
| | - Souvik Ghosh
- Department of Electronic and Electrical Engineering, University College London, Gower St., London WC1E 6AE, UK;
| | - Akhilesh Kumar Pathak
- International School of Engineering and Intelligent Control Automation of Process Systems Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (C.V.); (A.K.P.)
| | - Sneha Verma
- School of Mathematics, Computer Science and Engineering, University of London, London EC1V 0HB, UK; (S.V.); (N.S.)
| | - Natsima Sakda
- School of Mathematics, Computer Science and Engineering, University of London, London EC1V 0HB, UK; (S.V.); (N.S.)
- Department of Physics, Faculty of Science, Mahidol University, Bangkok 10400, Thailand;
| |
Collapse
|
6
|
A Study on Fabrication Process of Gold Microdisk Arrays by the Direct Imprinting Method Using a PET Film Mold. CRYSTALS 2021. [DOI: 10.3390/cryst11121452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In this study, an efficient nanofabrication process of metal microdisk arrays using direct imprinting was developed. This process was comprised of three steps; sputter etching on the quartz glass substrate, gold thin film deposition on an etched surface of a substrate, and transfer imprinting using a polyethylene terephthalate (PET) film mold on the Au thin film. A new idea to utilize a PET film mold for disk patterning by the nano transfer imprinting was examined. The PET film mold was prepared by thermally embossing the pillar pattern of a master mold on the PET film. The master mold was prepared from a silicon wafer. The PET film mold was used for transfer imprinting on a metal film deposited on a quartz substrate. The experimental results revealed that the PET film mold can effectively form gold micro-disk arrays on the Au film despite the PET film mold being softer than the Au film. This method can control the distribution and orientation of the nano-arrays on the disk. The plasmonic properties of the gold micro-disk arrays are studied and the absorbance spectrum exhibit depends on the distribution and orientation of gold micro-disk patterns. The nano-transfer imprinting technique is useful for fabricating metallic microdisk arrays on substrate as a plasmonic device.
Collapse
|
7
|
Nanoplasmonic biosensors: Theory, structure, design, and review of recent applications. Anal Chim Acta 2021; 1185:338842. [PMID: 34711322 DOI: 10.1016/j.aca.2021.338842] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 07/04/2021] [Accepted: 07/05/2021] [Indexed: 11/20/2022]
Abstract
Nanoplasmonic biosensing shows an immense potential to satisfy the needs of the global health industry - low-cost, fast, and portable automated systems; highly sensitive and real-time detection; multiplexing and miniaturization. In this review, we presented the theory of nanoplasmonic biosensing for popular detection schemes - SPR, LSPR, and EOT - and underline the consideration for nanostructure design, material selection, and their effects on refractometric sensing performance. Later, we covered the bottom-up and top-down nanofabrication methods for nanoplasmonic biosensors. Subsequently, we reviewed the recent examples of nanoplasmonic biosensors over a wide range of clinically relevant analytes in the diagnosis and prognosis of a wide range of diseases and conditions such as biomarker proteins, infectious bacteria, viral agents. Finally, we discussed the challenges of nanoplasmonic biosensing toward clinical translation and proposed strategic avenues to be competitive against current clinical detection methods. Hopefully, nanoplasmonic biosensing can realize its potential through successful demonstrations of clinical translation in the upcoming years.
Collapse
|
8
|
Verma S, Ghosh S, Rahman B. All-Opto Plasmonic-Controlled Bulk and Surface Sensitivity Analysis of a Paired Nano-Structured Antenna with a Label-Free Detection Approach. SENSORS 2021; 21:s21186166. [PMID: 34577373 PMCID: PMC8473198 DOI: 10.3390/s21186166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 12/02/2022]
Abstract
Gold nanoantennas have been used in a variety of biomedical applications due to their attractive electronic and optical properties, which are shape- and size-dependent. Here, a periodic paired gold nanostructure exploiting surface plasmon resonance is proposed, which shows promising results for Refractive Index (RI) detection due to its high electric field confinement and diffraction limit. Here, single and paired gold nanostructured sensors were designed for real-time RI detection. The Full-Width at Half-Maximum (FWHM) and Figure-Of-Merit (FOM) were also calculated, which relate the sensitivity to the sharpness of the peak. The effect of different possible structural shapes and dimensions were studied to optimise the sensitivity response of nanosensing structures and identify an optimised elliptical nanoantenna with the major axis a, minor axis b, gap between the pair g, and heights h being 100 nm, 10 nm, 10 nm, and 40 nm, respectively. In this work, we investigated the bulk sensitivity, which is the spectral shift per refractive index unit due to the change in the surrounding material, and this value was calculated as 526–530 nm/RIU, while the FWHM was calculated around 110 nm with a FOM of 8.1. On the other hand, the surface sensing was related to the spectral shift due to the refractive index variation of the surface layer near the paired nanoantenna surface, and this value for the same antenna pair was calculated as 250 nm/RIU for a surface layer thickness of 4.5 nm.
Collapse
|
9
|
Abasahl B, Santschi C, Raziman TV, Martin OJF. Fabrication of plasmonic structures with well-controlled nanometric features: a comparison between lift-off and ion beam etching. NANOTECHNOLOGY 2021; 32:475202. [PMID: 34348240 DOI: 10.1088/1361-6528/ac1a93] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
After providing a detailed overview of nanofabrication techniques for plasmonics, we discuss in detail two different approaches for the fabrication of metallic nanostructures based on e-beam lithography. The first approach relies on a negative e-beam resist, followed by ion beam milling, while the second uses a positive e-beam resist and lift-off. Overall, ion beam etching provides smaller and more regular features including tiny gaps between sub-parts, that can be controlled down to about 10 nm. In the lift-off process, the metal atoms are deposited within the resist mask and can diffuse on the substrate, giving rise to the formation of nanoclusters that render the nanostructure outline slightly fuzzy. Scattering cross sections computed for both approaches highlight some spectral differences, which are especially visible for structures that support complex resonances, such as Fano resonances. Both techniques can produce useful nanostructures and the results reported therein should guide the researcher to choose the best suited approach for a given application, depending on the available technology.
Collapse
Affiliation(s)
- B Abasahl
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - C Santschi
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - T V Raziman
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - O J F Martin
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| |
Collapse
|
10
|
Manoj D, Shanmugasundaram S, Anandharamakrishnan C. Nanosensing and nanobiosensing: Concepts, methods, and applications for quality evaluation of liquid foods. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
11
|
Zappi D, Ramma MM, Scognamiglio V, Antonacci A, Varani G, Giardi MT. High-Tech and Nature-Made Nanocomposites and Their Applications in the Field of Sensors and Biosensors for Gas Detection. BIOSENSORS-BASEL 2020; 10:bios10110176. [PMID: 33203038 PMCID: PMC7696430 DOI: 10.3390/bios10110176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 01/25/2023]
Abstract
Gas sensors have been object of increasing attention by the scientific community in recent years. For the development of the sensing element, two major trends seem to have appeared. On one hand, the possibility of creating complex structures at the nanoscale level has given rise to ever more sensitive sensors based on metal oxides and metal-polymer combinations. On the other hand, gas biosensors have started to be developed, thanks to their intrinsic ability to be selective for the target analyte. In this review, we analyze the recent progress in both areas and underline their strength, current problems, and future perspectives.
Collapse
Affiliation(s)
- Daniele Zappi
- Istituto di Cristallografia, CNR Area Della Ricerca di Roma, 00015 Monterotondo Scalo Rome, Italy; (D.Z.); (V.S.); (A.A.)
| | - Matiss Martins Ramma
- Biosensor Srl, Via Degli Olmetti 44, 00060 Formello Rome, Italy; (M.M.R.); (G.V.)
| | - Viviana Scognamiglio
- Istituto di Cristallografia, CNR Area Della Ricerca di Roma, 00015 Monterotondo Scalo Rome, Italy; (D.Z.); (V.S.); (A.A.)
| | - Amina Antonacci
- Istituto di Cristallografia, CNR Area Della Ricerca di Roma, 00015 Monterotondo Scalo Rome, Italy; (D.Z.); (V.S.); (A.A.)
| | - Gabriele Varani
- Biosensor Srl, Via Degli Olmetti 44, 00060 Formello Rome, Italy; (M.M.R.); (G.V.)
| | - Maria Teresa Giardi
- Istituto di Cristallografia, CNR Area Della Ricerca di Roma, 00015 Monterotondo Scalo Rome, Italy; (D.Z.); (V.S.); (A.A.)
- Biosensor Srl, Via Degli Olmetti 44, 00060 Formello Rome, Italy; (M.M.R.); (G.V.)
- Correspondence:
| |
Collapse
|
12
|
Das CM, Guo Y, Kang L, Ho H, Yong K. Investigation of Plasmonic Detection of Human Respiratory Virus. ADVANCED THEORY AND SIMULATIONS 2020; 3:2000074. [PMID: 32838127 PMCID: PMC7300606 DOI: 10.1002/adts.202000074] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/14/2020] [Indexed: 01/29/2023]
Abstract
The COVID‐19 virus has been recently identified as a new species of virus that can cause severe infections such as pneumonia. The sudden outbreak of this disease is being considered a pandemic. Given all this, it is essential to develop smart biosensors that can detect pathogens with minimum time delay. Surface plasmon resonance (SPR) biosensors make use of refractive index (RI) changes as the sensing parameter. In this work, based on actual data taken from previous experimental works done on plasmonic detection of viruses, a detailed simulation of the SPR scheme that can be used to detect the COVID‐19 virus is performed and the results are extrapolated from earlier schemes to predict some outcomes of this SPR model. The results indicate that the conventional Kretschmann configuration can have a limit of detection (LOD) of 2E‐05 in terms of RI change and an average sensitivity of 122.4 degRIU−1 at a wavelength of 780 nm.
Collapse
Affiliation(s)
- Chandreyee Manas Das
- CINTRA CNRS/NTU/THALES, UMI 3288Research Techno Plaza 50 Nanyang Drive, Border X Block Singapore 637553 Singapore
- School of Electrical and Electronic EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
| | - Yan Guo
- School of AutomationHangzhou Dianzi University Hangzhou Zhejiang 310018 China
| | - Lixing Kang
- CINTRA CNRS/NTU/THALES, UMI 3288Research Techno Plaza 50 Nanyang Drive, Border X Block Singapore 637553 Singapore
- School of Electrical and Electronic EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
| | - Ho‐pui Ho
- Department of Biomedical EngineeringThe Chinese University of Hong Kong New Territories Hong Kong SAR 999077 China
| | - Ken‐Tye Yong
- CINTRA CNRS/NTU/THALES, UMI 3288Research Techno Plaza 50 Nanyang Drive, Border X Block Singapore 637553 Singapore
- School of Electrical and Electronic EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
| |
Collapse
|
13
|
Hu J, Ghosh M, Miller MJ, Bohn PW. Whole-cell biosensing by siderophore-based molecular recognition and localized surface plasmon resonance. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2019; 11:296-302. [PMID: 31666814 PMCID: PMC6820853 DOI: 10.1039/c8ay02180e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A siderophore-based active bacterial pull-down strategy was integrated in a localized surface plasmon resonance (LSPR) sensing platform and subsequently tested by detecting whole-cell Acinetobacter baumannii. The LSPR-based whole-cell sensing approach was previously demonstrated with aptamer-based molecular recognition motifs, and here it is extended to the powerful siderophore system, which exploits the natural bacterial need to sequester Fe(III). Specifically, a biscatecholate-monohydroxamate mixed ligand siderophore linked to a biotin via three polyethylene glycol repeating units was synthesized and immobilized on Au trigonal nanoprisms of an LSPR sensor. The resulting surface-confined biotinylated siderophore subsequently chelated Fe(III), forming a siderophore-Fe(III) complex which was shown to be competent to recognize A. baumannii. Target bacteria were captured and then detected by measuring wavelength shifts in the LSPR extinction spectrum. This siderophore pull-down LSPR biosensor approach is rapid (≤3 h detection) and sensitive - with a limit of detection (LOD) of 80 bacterial cells and a linear wavelength shift over the range 4 × 102 to 4 × 106 cfu mL-1. As intended by design, the siderophore-based biosensor was selective for A. baumannii over Pseudomonas aeruginosa, Escherichia coli, and Bacillus cereus, and was stable in ambient conditions for up to 2 weeks.
Collapse
Affiliation(s)
- Jiayun Hu
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA. ; ; Tel: +1-574-631-1849
| | - Manuka Ghosh
- Hsiri Therapeutics, Innovation Park, 1400 East Angela Boulevard, South Bend, Indiana 46617, USA
| | - Marvin J Miller
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA. ; ; Tel: +1-574-631-1849
| | - Paul W Bohn
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA. ; ; Tel: +1-574-631-1849
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| |
Collapse
|
14
|
Feng X, Bai Y, Jing Z, Qu Y, Wang T, Ullah H, Zhang Z. Enhanced circular dichroism of tilted zigzag-shaped nanohole arrays. APPLIED OPTICS 2019; 58:177-181. [PMID: 30645527 DOI: 10.1364/ao.58.000177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/29/2018] [Indexed: 06/09/2023]
Abstract
Circular dichroism (CD) of nanostructures is in great demand for applications in biological molecules, photocurrent devices, and photocatalysis. Planar nanostructures can be prepared in a concise manner, and their CD effects have gained much research interest. In this study, tilted zigzag-shaped nanohole (TZSN) arrays are proposed, and the CD effect is studied by the finite element method. A strong resonance occurs in the gap by tuning the charge distributions between adjacent nanoholes. Meanwhile, the CD effect of TZSN arrays is strongly dependent on the structural parameters of TZSN. Results provide a novel method for tuning the CD effects of nanohole arrays on a film.
Collapse
|
15
|
Ali MA, Tabassum S, Wang Q, Wang Y, Kumar R, Dong L. Integrated dual-modality microfluidic sensor for biomarker detection using lithographic plasmonic crystal. LAB ON A CHIP 2018; 18:803-817. [PMID: 29431801 DOI: 10.1039/c7lc01211j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This paper reports an integrated dual-modality microfluidic sensor chip, consisting of a patterned periodic array of nanoposts coated with gold (Au) and graphene oxide (GO), to detect target biomarker molecules in a limited sample volume. The device generates both electrochemical and surface plasmon resonance (SPR) signals from a single sensing area of Au-GO nanoposts. The Au-GO nanoposts are functionalized with specific receptor molecules, serving as a spatially well-defined nanostructured working electrode for electrochemical sensing, as well as a nanostructured plasmonic crystal for SPR-based sensing via the excitation of surface plasmon polaritons. High sensitivity of the electrochemical measurement originates from the presence of the nanoposts on the surface of the working electrode where radial diffusion of redox species occurs. Complementarily, the SPR detection allows convenient tracking of dynamic antigen-antibody interactions, to describe the association and dissociation phases occurring at the sensor surface. The soft-lithographically formed nanoposts provide high reproducibility of the sensor response to epidermal growth factor receptor (ErbB2) molecules even at a femtomolar level. Sensitivities of the electrochemical measurements to ErbB2 are found to be 20.47 μA μM-1 cm-2 in a range from 1 fM to 0.1 μM, and those of the SPR measurements to be 1.35 nm μM-1 in a range from 10 pM to 1 nM, and 0.80 nm μM-1 in a range from 1 nM to 0.1 μM. The integrated dual-modality sensor offers higher sensitivity (through higher surface area and diffusions from nanoposts for electrochemical measurements), as well as the dynamic measurements of antigen-antibody bindings (through the SPR measurement), while operating simultaneously in a same sensing area using the same sample volume.
Collapse
Affiliation(s)
- Md Azahar Ali
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USA.
| | | | | | | | | | | |
Collapse
|
16
|
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.
Collapse
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
| |
Collapse
|
17
|
Khan TM, Mujawar MA, Siewerska KE, Pokle A, Donnelly T, McEvoy N, Duesberg GS, Lunney JG. Atmospheric pulsed laser deposition and thermal annealing of plasmonic silver nanoparticle films. NANOTECHNOLOGY 2017; 28:445601. [PMID: 28884710 DOI: 10.1088/1361-6528/aa8b32] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new method for pulsed laser deposition of plasmonic silver nanoparticle (NP) films in flowing gas at atmospheric pressure is described. The ablation was done using an excimer laser at 248 nm. Fast optical imaging shows that the ablation plume is captured by the flowing gas, and is expected to form a NP aerosol, which is carried 5-20 mm to the substrate. The dependence of the deposition rate on laser fluence, gas flow velocity, and target-substrate distance was investigated using electron microscopy and absorption spectroscopy of the deposited films. The NP films were annealed in argon and hydrogen at 400 °C, and in air for temperatures in the range 200 °C-900 °C, leading to strong enhancement, and narrowing of the surface plasmon resonance. The films were used for surface enhanced Raman spectroscopy of a 10-5 molar solution of Rhodamine 6G; films annealed in air at 400 °C were five times more sensitive than the as-deposited films.
Collapse
Affiliation(s)
- T M Khan
- School of Physics and CRANN, Trinity College Dublin, the University of Dublin, Dublin 2, Ireland
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Butun S, Palacios E, Cain JD, Liu Z, Dravid VP, Aydin K. Quantifying Plasmon-Enhanced Light Absorption in Monolayer WS 2 Films. ACS APPLIED MATERIALS & INTERFACES 2017; 9:15044-15051. [PMID: 28393525 DOI: 10.1021/acsami.7b01947] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Transition metal dichalcogenide semiconductors hold great promise in photonic and optoelectronic applications, such as flexible solar cells and ultrafast photodetectors, because of their direct band gap and few-atom thicknesses. However, it is crucial to understand and improve the absorption characteristics of these monolayer semiconducting materials. In this study, we conducted a systematic numerical and experimental investigation to demonstrate and quantify absorption enhancement in WS2 monolayer films, in the presence of silver plasmonic nanodisk arrays. Our analysis combining full-field electromagnetic simulations and optical absorption spectroscopy measurements indicates a fourfold enhancement in the absorption of an WS2 film near its band edge, close to the plasmonic resonance wavelength of Ag nanodisk arrays. The proposed Ag/WS2 heterostructure exhibited a 2.5-fold enhancement in calculated short-circuit current. Such hybrid plasmonic or two-dimensional (2D) materials with enhanced absorption pave the way for the practical realization of 2D optoelectronic devices, including ultrafast photodetectors and solar cells.
Collapse
Affiliation(s)
- Serkan Butun
- Department of Electrical Engineering and Computer Science, ‡Department of Materials Science and Engineering, and §International Institute for Nanotechnology (IIN) Northwestern University , Evanston, Illinois 60208, United States
| | - Edgar Palacios
- Department of Electrical Engineering and Computer Science, ‡Department of Materials Science and Engineering, and §International Institute for Nanotechnology (IIN) Northwestern University , Evanston, Illinois 60208, United States
| | - Jeffrey D Cain
- Department of Electrical Engineering and Computer Science, ‡Department of Materials Science and Engineering, and §International Institute for Nanotechnology (IIN) Northwestern University , Evanston, Illinois 60208, United States
| | - Zizhuo Liu
- Department of Electrical Engineering and Computer Science, ‡Department of Materials Science and Engineering, and §International Institute for Nanotechnology (IIN) Northwestern University , Evanston, Illinois 60208, United States
| | - Vinayak P Dravid
- Department of Electrical Engineering and Computer Science, ‡Department of Materials Science and Engineering, and §International Institute for Nanotechnology (IIN) Northwestern University , Evanston, Illinois 60208, United States
| | - Koray Aydin
- Department of Electrical Engineering and Computer Science, ‡Department of Materials Science and Engineering, and §International Institute for Nanotechnology (IIN) Northwestern University , Evanston, Illinois 60208, United States
| |
Collapse
|
19
|
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.
Collapse
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.
| |
Collapse
|
20
|
Hou R, Shynkar V, Lafargue C, Kolkowski R, Zyss J, Lagugné-Labarthet F. Second harmonic generation from gold meta-molecules with three-fold symmetry. Phys Chem Chem Phys 2016; 18:7956-65. [DOI: 10.1039/c6cp00154h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Polarization dependence SHG measurements reveal four-lobe patterns which can be assigned to structures with three-fold symmetry.
Collapse
Affiliation(s)
- Renjie Hou
- Department of Chemistry
- Department of Physics and Astronomy
- The University of Western Ontario
- London
- Canada
| | - Vasyl Shynkar
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
| | - Clément Lafargue
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
| | - Radoslaw Kolkowski
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
- Advanced Materials Engineering and Modelling Group
| | - Joseph Zyss
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
| | | |
Collapse
|
21
|
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.
Collapse
|
22
|
Ndukaife JC, Mishra A, Guler U, Nnanna AGA, Wereley ST, Boltasseva A. Photothermal heating enabled by plasmonic nanostructures for electrokinetic manipulation and sorting of particles. ACS NANO 2014; 8:9035-43. [PMID: 25144369 DOI: 10.1021/nn502294w] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Plasmonic nanostructures support strong electromagnetic field enhancement or optical "hot spots" that are accompanied by local heat generation. This heating effect is generally seen as an obstacle to stable trapping of particles on a plasmonic substrate. In this work, instead of treating the heating effect as a hindrance, we utilized the collective photoinduced heating of the nanostructure array for high-throughput trapping of particles on a plasmonic nanostructured substrate. The photoinduced heating of the nanostructures is combined with an ac electric field of less than 100 kHz, which results in creation of a strong electrothermal microfluidic flow. This flow rapidly transports suspended particles toward the plasmonic substrate, where they are captured by local electric field effects. This work is envisioned to have application in biosensing and surface-enhanced spectroscopies such as SERS.
Collapse
Affiliation(s)
- Justus Chukwunonso Ndukaife
- School of Electrical & Computer Engineering and Birck Nanotechnology Center, Purdue University , West Lafayette, Indiana 47907, United States
| | | | | | | | | | | |
Collapse
|
23
|
Liu F, Wong MMK, Chiu SK, Lin H, Ho JC, Pang SW. Effects of nanoparticle size and cell type on high sensitivity cell detection using a localized surface plasmon resonance biosensor. Biosens Bioelectron 2013; 55:141-8. [PMID: 24373953 DOI: 10.1016/j.bios.2013.11.075] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 11/28/2013] [Accepted: 11/29/2013] [Indexed: 10/25/2022]
Abstract
A localized surface plasmon resonance (LSPR) effect was used to distinguish cell concentration on ordered arrays of Au nanoparticles (NPs) on glass substrates. Human-derived retinal pigment epithelial RPE-1 cells with flatter bodies and higher confluency were compared with breast cancer MCF-7 cells. Nanosphere lithography was used to form Au NPs with average diameters of 500 and 60 nm in order to compare cell detection range, resonance peak shift, and cell concentration sensitivity. A larger cell concentration range was detected on the larger 500 nm Au NPs compared to 60 nm Au NPs (8.56 × 10(3)-1.09 × 10(6) vs. 3.43 × 10(4)-2.73 × 10(5)cells/ml). Resonance peak shift could distinguish RPE-1 from MCF-7 cells on both Au NPs. RPE-1 cells consistently displayed larger resonance peak shifts compared to MCF-7 cells until the detection became saturated at higher concentration. For both types of cells, higher concentration sensitivity in the range of ~10(4)-10(6)cells/ml was observed on 500 nm compared to 60 nm Au NPs. Our results show that cells on Au NPs can be detected in a large range and at low concentration. Optimal cell sensing can be achieved by altering the dimensions of Au NPs according to different cell characteristics and concentrations.
Collapse
Affiliation(s)
- Fei Liu
- Department of Electronic Engineering, City University of Hong Kong, Kowloon, Hong Kong; Center for Biosystems, Neuroscience, and Nanotechnology, City University of Hong Kong, Kowloon, Hong Kong; Department of Electronic Information Engineering, Tianjin University, Tianjin 300072, China
| | - Matthew Man-Kin Wong
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong; Center for Biosystems, Neuroscience, and Nanotechnology, City University of Hong Kong, Kowloon, Hong Kong
| | - Sung-Kay Chiu
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong; Center for Biosystems, Neuroscience, and Nanotechnology, City University of Hong Kong, Kowloon, Hong Kong
| | - Hao Lin
- Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong; Center for Biosystems, Neuroscience, and Nanotechnology, City University of Hong Kong, Kowloon, Hong Kong
| | - Johnny C Ho
- Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong; Center for Biosystems, Neuroscience, and Nanotechnology, City University of Hong Kong, Kowloon, Hong Kong
| | - Stella W Pang
- Department of Electronic Engineering, City University of Hong Kong, Kowloon, Hong Kong; Center for Biosystems, Neuroscience, and Nanotechnology, City University of Hong Kong, Kowloon, Hong Kong.
| |
Collapse
|
24
|
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.
Collapse
Affiliation(s)
- Chiara Valsecchi
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | | |
Collapse
|
25
|
Cinel NA, Bütün S, Ertaş G, Ozbay E. 'Fairy Chimney'-shaped tandem metamaterials as double resonance SERS substrates. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:531-537. [PMID: 23060087 DOI: 10.1002/smll.201201286] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 08/22/2012] [Indexed: 06/01/2023]
Abstract
A highly tunable design for obtaining double resonance substrates to be used in surface-enhanced Raman spectroscopy is proposed. Tandem truncated nanocones composed of Au-SiO(2)-Au layers are designed, simulated and fabricated to obtain resonances at laser excitation and Stokes frequencies. Surface-enhanced Raman scattering experiments are conducted to compare the enhancements obtained from double resonance substrates to those obtained from single resonance gold truncated nanocones. The best enhancement factor obtained using the new design is 3.86 × 10(7). The resultant tandem structures are named after "Fairy Chimneys" rock formation in Cappadocia, Turkey.
Collapse
Affiliation(s)
- Neval A Cinel
- Nanotechnology Research Center, Department of Electrical and Electronics Engineering, Bilkent University, 06800 Bilkent, Turkey.
| | | | | | | |
Collapse
|
26
|
Tian L, Morrissey JJ, Kattumenu R, Gandra N, Kharasch ED, Singamaneni S. Bioplasmonic paper as a platform for detection of kidney cancer biomarkers. Anal Chem 2012; 84:9928-34. [PMID: 23098272 PMCID: PMC3514911 DOI: 10.1021/ac302332g] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We demonstrate that a common laboratory filter paper uniformly adsorbed with biofunctionalized plasmonic nanostructures can serve as a highly sensitive transduction platform for rapid detection of trace bioanalytes in physiological fluids. In particular, we demonstrate that bioplasmonic paper enables rapid urinalysis for the detection of kidney cancer biomarkers in artificial urine down to a concentration of 10 ng/mL. Compared to conventional rigid substrates, bioplasmonic paper offers numerous advantages such as high specific surface area (resulting in large dynamic range), excellent wicking properties (naturally microfluidic), mechanical flexibility, compatibility with conventional printing approaches (enabling multiplexed detection and multimarker biochips), and significant cost reduction.
Collapse
Affiliation(s)
- Limei Tian
- Department of Mechanical Engineering and Materials Science. Washington University in St. Louis, St Louis, MO, 63130, USA
| | - Jeremiah J. Morrissey
- Department of Anesthesiology, Division of Clinical and Translational Research, Washington University in St. Louis, St Louis, MO, 63110, USA
- Siteman Cancer Center
| | - Ramesh Kattumenu
- Department of Mechanical Engineering and Materials Science. Washington University in St. Louis, St Louis, MO, 63130, USA
| | - Naveen Gandra
- Department of Mechanical Engineering and Materials Science. Washington University in St. Louis, St Louis, MO, 63130, USA
| | - Evan D. Kharasch
- Department of Anesthesiology, Division of Clinical and Translational Research, Washington University in St. Louis, St Louis, MO, 63110, USA
- Siteman Cancer Center
- Department of Biochemistry and Molecular Biophysics, Washington University in St. Louis, St Louis, MO, 63110 USA
| | - Srikanth Singamaneni
- Department of Mechanical Engineering and Materials Science. Washington University in St. Louis, St Louis, MO, 63130, USA
- Siteman Cancer Center
| |
Collapse
|