1
|
Adhikari S, Joshi R, Joshi R, Kim M, Jang Y, Tufa LT, Gicha BB, Lee J, Lee D, Cho BK. Rapid and ultrasensitive detection of thiram and carbaryl pesticide residues in fruit juices using SERS coupled with the chemometrics technique. Food Chem 2024; 457:140486. [PMID: 39032478 DOI: 10.1016/j.foodchem.2024.140486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 07/13/2024] [Accepted: 07/14/2024] [Indexed: 07/23/2024]
Abstract
A gold nanogap substrate was used to measure the thiram and carbaryl residues in various fruit juices using surface-enhanced Raman scattering (SERS). The gold nanogap substrates can detect carbaryl and thiram with limits of detection of 0.13 ppb (0.13 μgkg-1) and 0.22 ppb (0.22 μgkg-1). Raw SERS data were first preprocessed to reduce noise and undesirable effects and, were later used for model creation, implementing classification, and regression analysis techniques. The partial least-squares regression models achieved the highest prediction correlation coefficient (R2) of 0.99 and the lowest root mean square of prediction value below 0.62 ppb for both pesticide-infected juice samples. Furthermore, to differentiate between juice samples contaminated by both pesticides and control (pesticide-free), logistic-regression classification models were produced and achieved the highest classification accuracies of 100% and 99% for contaminated juice containing thiram and 100% accurate results for contaminated juice containing carbaryl. This indicates that the gold nanogap surface has significant potential for achieving high sensitivity in detecting trace contaminants in food samples.
Collapse
Affiliation(s)
- Samir Adhikari
- Department of Physics, Chungnam National University, Daejeon 34134, Republic of Korea; Bright Quantum Incorporated, Daejeon 34133, Republic of Korea
| | - Rahul Joshi
- Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Ritu Joshi
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States
| | - Minjun Kim
- Department of Physics, Chungnam National University, Daejeon 34134, Republic of Korea; Institute of Quantum Systems, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Yudong Jang
- Bright Quantum Incorporated, Daejeon 34133, Republic of Korea; Institute of Quantum Systems, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Lemma Teshome Tufa
- Research Institute of Materials Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Birhanu Bayissa Gicha
- Research Institute of Materials Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jaebeom Lee
- Research Institute of Materials Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Donghan Lee
- Department of Physics, Chungnam National University, Daejeon 34134, Republic of Korea; Bright Quantum Incorporated, Daejeon 34133, Republic of Korea; Institute of Quantum Systems, Chungnam National University, Daejeon 34134, Republic of Korea.
| | - Byoung-Kwan Cho
- Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon 34134, Republic of Korea; Department of Smart Agriculture Systems, College of Agricultural and Life Science, Chungnam National University, Daejeon 34134, Republic of Korea.
| |
Collapse
|
2
|
Luo X, Yue W, Zhang S, Liu H, Chen Z, Qiao L, Wu C, Li P, He Y. SARS-CoV-2 proteins monitored by long-range surface plasmon field-enhanced Raman scattering with hybrid bowtie nanoaperture arrays and nanocavities. LAB ON A CHIP 2023; 23:388-399. [PMID: 36621932 DOI: 10.1039/d2lc01006b] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The identification of biomacromolecules by using surface-enhanced Raman scattering (SERS) remains a challenge because of the near-field effect of traditional substrates. Long-range surface plasmon resonance (LRSPR) is a special type of surface optical phenomenon that provides higher electromagnetic field enhancement and longer penetration depth than conventional surface plasmon resonance. To break the limit of SERS detection distance and obtain a SERS substrate with increased enhancement ability, a bowtie nanoaperture array was sandwiched between two symmetric dielectric environments. Then, an Au mirror was inserted to form a metal-insulator-metal configuration. Finite-difference time-domain simulations revealed that numerous hybrid modes can be provided by this novel configuration (denoted as long-range SERS [LR-SERS] substrate). In particular, the LRSPR mode can be excited and reach the maximum value through the regulation of the polarizations of the incident light and the geometrical parameters of the LR-SERS substrate. The optimized LR-SERS substrate was then applied to detect SARS-CoV-2 spike (S) and nucleocapsid (N) proteins. This substrate displayed ultralow detection limits of ∼9.2 and ∼11.3 pg mL-1 for the S and N proteins, respectively. Moreover, with the help of principal component analysis and receiver operating characteristic methods, our fabricated sensors exhibited excellent selectivity and hold great potential for the diagnosis of SARS-CoV-2 proteins in real samples.
Collapse
Affiliation(s)
- Xiaojun Luo
- School of Science, Xihua University, Chengdu 610039, P. R. China.
| | - Weiling Yue
- School of Science, Xihua University, Chengdu 610039, P. R. China.
| | - Shutong Zhang
- School of Science, Xihua University, Chengdu 610039, P. R. China.
| | - Haopeng Liu
- School of Science, Xihua University, Chengdu 610039, P. R. China.
| | - Zhinan Chen
- School of Science, Xihua University, Chengdu 610039, P. R. China.
| | - Ling Qiao
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Caijun Wu
- School of Science, Xihua University, Chengdu 610039, P. R. China.
| | - Panjie Li
- School of Chemistry and Chemical Engineering, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Yi He
- School of Science, Xihua University, Chengdu 610039, P. R. China.
| |
Collapse
|
3
|
Sahoo SR, Huey-Jen Hsu S, Chou DA, Wang GJ, Chang CC. Surface plasmon-enhanced fluorescence and surface-enhanced Raman scattering dual-readout chip constructed with silver nanowires: Label-free clinical detection of direct-bilirubin. Biosens Bioelectron 2022; 213:114440. [PMID: 35667289 DOI: 10.1016/j.bios.2022.114440] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/27/2022] [Accepted: 05/29/2022] [Indexed: 11/30/2022]
Abstract
It has been found that the direct/total bilirubin ratio (D/T-BIL) is related to the survival rate of COVID-19 pneumonia. The presence of an excessive amount of bilirubin in human blood also causes liver and neurological damage, leading to death. Therefore, upon considering the adverse impact of the presence of excessive bilirubin in human blood, it has become highly imperative to detect bilirubin in a fast and label-free manner. Herein, we designed and constructed a random-crossed-woodpile nanostructure from silver nanowires to form a 3-dimensional plasmonic hotspot-rich (3D-PHS) nanostructure and successfully used it to detect direct bilirubin (D-BIL) in human blood in a label-free manner. The 3D-PHS nanochip provides rich spatial hot spots that are simultaneously responsive to SERS and SPEF effects and consequently, successfully used to measure and characterize D-BIL with a detection limit of ∼10 nM, requiring only 10μL of human serum for rapid screening, which is the first time D-BIL has been detected in a clinically relevant range. This demonstrates a simple, label-free, pretreatment-free potential biosensing technology that can be used in health care units, and further, in the efficient detection of point-of-care testing with a portable spectrometer.
Collapse
Affiliation(s)
- Smruti R Sahoo
- Intelligent Minimally-Invasive Device Center, National Chung Hsing University, Taichung, 40227, Taiwan; Department of Mechanical Engineering, National Chung-Hsing University, Taichung, 40227, Taiwan
| | - Sandy Huey-Jen Hsu
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, 10002, Taiwan
| | - Dev-Aur Chou
- Department of General Surgery, Changhua Show Chwan Memorial Hospital, Changhua, 50544, Taiwan
| | - Gou-Jen Wang
- Department of Mechanical Engineering, National Chung-Hsing University, Taichung, 40227, Taiwan; Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung, 40227, Taiwan.
| | - Cheng-Chung Chang
- Intelligent Minimally-Invasive Device Center, National Chung Hsing University, Taichung, 40227, Taiwan; Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung, 40227, Taiwan.
| |
Collapse
|
4
|
Pandey P, Seo MK, Shin KH, Lee YW, Sohn JI. Hierarchically Assembled Plasmonic Metal-Dielectric-Metal Hybrid Nano-Architectures for High-Sensitivity SERS Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:401. [PMID: 35159747 PMCID: PMC8838151 DOI: 10.3390/nano12030401] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 02/05/2023]
Abstract
In this work, we designed and prepared a hierarchically assembled 3D plasmonic metal-dielectric-metal (PMDM) hybrid nano-architecture for high-performance surface-enhanced Raman scattering (SERS) sensing. The fabrication of the PMDM hybrid nanostructure was achieved by the thermal evaporation of Au film followed by thermal dewetting and the atomic layer deposition (ALD) of the Al2O3 dielectric layer, which is crucial for creating numerous nanogaps between the core Au and the out-layered Au nanoparticles (NPs). The PMDM hybrid nanostructures exhibited strong SERS signals originating from highly enhanced electromagnetic (EM) hot spots at the 3 nm Al2O3 layer serving as the nanogap spacer, as confirmed by the finite-difference time-domain (FDTD) simulation. The PMDM SERS substrate achieved an outstanding SERS performance, including a high sensitivity (enhancement factor, EF of 1.3 × 108 and low detection limit 10-11 M) and excellent reproducibility (relative standard deviation (RSD) < 7.5%) for rhodamine 6G (R6G). This study opens a promising route for constructing multilayered plasmonic structures with abundant EM hotspots for the highly sensitive, rapid, and reproducible detection of biomolecules.
Collapse
Affiliation(s)
- Puran Pandey
- Division of Physics and Semiconductor Science, Dongguk University-Seoul, Seoul 04620, Korea; (P.P.); (M.-K.S.); (K.H.S.)
| | - Min-Kyu Seo
- Division of Physics and Semiconductor Science, Dongguk University-Seoul, Seoul 04620, Korea; (P.P.); (M.-K.S.); (K.H.S.)
| | - Ki Hoon Shin
- Division of Physics and Semiconductor Science, Dongguk University-Seoul, Seoul 04620, Korea; (P.P.); (M.-K.S.); (K.H.S.)
| | - Young-Woo Lee
- Department of Energy Systems, Soonchunhyang University, Asan-si 31538, Korea
| | - Jung Inn Sohn
- Division of Physics and Semiconductor Science, Dongguk University-Seoul, Seoul 04620, Korea; (P.P.); (M.-K.S.); (K.H.S.)
| |
Collapse
|
5
|
Han HJ, Cho SH, Han S, Jang JS, Lee GR, Cho EN, Kim SJ, Kim ID, Jang MS, Tuller HL, Cha JJ, Jung YS. Synergistic Integration of Chemo-Resistive and SERS Sensing for Label-Free Multiplex Gas Detection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2105199. [PMID: 34569647 DOI: 10.1002/adma.202105199] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Indexed: 06/13/2023]
Abstract
Practical sensing applications such as real-time safety alerts and clinical diagnoses require sensor devices to differentiate between various target molecules with high sensitivity and selectivity, yet conventional devices such as oxide-based chemo-resistive sensors and metal-based surface-enhanced Raman spectroscopy (SERS) sensors usually do not satisfy such requirements. Here, a label-free, chemo-resistive/SERS multimodal sensor based on a systematically assembled 3D cross-point multifunctional nanoarchitecture (3D-CMA), which has unusually strong enhancements in both "chemo-resistive" and "SERS" sensing characteristics is introduced. 3D-CMA combines several sensing mechanisms and sensing elements via 3D integration of semiconducting SnO2 nanowire frameworks and dual-functioning Au metallic nanoparticles. It is shown that the multimodal sensor can successfully estimate mixed-gas compositions selectively and quantitatively at the sub-100 ppm level, even for mixtures of gaseous aromatic compounds (nitrobenzene and toluene) with very similar molecular structures. This is enabled by combined chemo-resistive and SERS multimodal sensing providing complementary information.
Collapse
Affiliation(s)
- Hyeuk Jin Han
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, 06511, USA
- Energy Sciences Institute, Yale West Campus, West Haven, CT, 06516, USA
| | - Seunghee H Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Sangjun Han
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Ji-Soo Jang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Center for Electronic Materials, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea
| | - Gyu Rac Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Eugene N Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Sang-Joon Kim
- Environment and Sustainable Resources Research Center, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Min Seok Jang
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Harry L Tuller
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Judy J Cha
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, 06511, USA
- Energy Sciences Institute, Yale West Campus, West Haven, CT, 06516, USA
| | - Yeon Sik Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| |
Collapse
|
6
|
Luo X, Zhu J, Jia W, Fang N, Wu P, Cai C, Zhu JJ. Boosting Long-Range Surface-Enhanced Raman Scattering on Plasmonic Nanohole Arrays for Ultrasensitive Detection of MiRNA. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18301-18313. [PMID: 33821612 DOI: 10.1021/acsami.1c01834] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A fundamental challenge, particularly, in surface-enhanced Raman scattering (SERS) analysis is the detection of analytes that are distant from the sensing surface. To tackle this challenge, we herein report a long-range SERS (LR-SERS) substrate supporting an extension of electric field afforded by long-range surface plasmon resonance (LRSPR) excited in symmetrical dielectric environments. The LR-SERS substrate has a sandwich configuration with a triangle-shaped gold nanohole array embedded between two dielectrics with similar refractive indices (i.e., MgF2 and water). The finite-difference time-domain simulation was applied to guide the design of the LR-SERS substrate, which was engineered to have a wavelength-matched LRSPR with 785 nm excitation. The simulations predict that the LR-SERS substrate exhibits great SERS enhancement at distances of more than 10 nm beyond its top surface, and the enhancement factor (EF) has been improved by three orders of magnitude on LR-SERS substrates compared to that on conventional substrates. The experimental results show good agreement with the simulations, an EF of 4.1 × 105 remains available at 22 nm above the LR-SERS substrate surface. The LR-SERS substrate was further applied as a sensing platform to detect microRNA (miRNA) let-7a coupled with a hybridization chain reaction (HCR) strategy. The developed sensor displays a wide linear range from 10 aM to 1 nM and an ultralow detection limit of 8.5 aM, making it the most sensitive among the current detection strategies for miRNAs based on the SERS-HCR combination to the best of our knowledge.
Collapse
Affiliation(s)
- Xiaojun Luo
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Jingtian Zhu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Wenyu Jia
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Ningning Fang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Ping Wu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Chenxin Cai
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| |
Collapse
|
7
|
Luo X, Kang T, Zhu J, Wu P, Cai C. Sensitivity-Improved SERS Detection of Methyltransferase Assisted by Plasmonically Engineered Nanoholes Array and Hybridization Chain Reaction. ACS Sens 2020; 5:3639-3648. [PMID: 33147006 DOI: 10.1021/acssensors.0c02016] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Detection of methyltransferase (MTase) activity is of great significance in methylation-related disease diagnosis and drug screening. Herein, we present a dual-amplification sensing strategy that is assisted by plasmonically enhanced Raman intensity at engineered nanoholes array, along with signal amplification by the hybridization chain reaction (HCR) for the ultrasensitive detection of M.SssI MTase activity and inhibitor screening. An engineered surface-enhanced Raman scattering (SERS) substrate, namely, a structured nanoholes array (NHA) with wavelength-matched surface plasmon resonance (SPR) at the wavelength of laser excitation (785 nm), was rationally designed through finite-difference time-domain (FDTD) simulations, precisely fabricated through master-assisted replication, and then used as a sensing platform. Uniform and intense SERS signals were achieved by turning on the plasmonic enhancement under the excitation of SPR. Probe DNA was designed to hybridize with target DNA (a BRCA1 gene fragment), and the formed dsDNA with the recognition site of M.SssI was assembled on the NHA. In the presence of M.SssI, the HCR process was triggered upon adding DNAs labeled with the Raman reporter Cy5, leading to an amplified SERS signal of Cy5. The intensity of Cy5 increases with increasing M.SssI activity, which establishes the basis of the assay for M.SssI. The developed assay displays an ultrasensitivity that has a broad linear range (0.002-200 U/mL) and a low detection limit (2 × 10-4 U/mL), which is superior to that of the reported SERS-based detection methods. Moreover, it can selectively detect M.SssI in human serum samples and evaluate the efficiency of M.SssI inhibitors.
Collapse
Affiliation(s)
- Xiaojun Luo
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, P. R. China
| | - Tuli Kang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, P. R. China
| | - Jingtian Zhu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, P. R. China
| | - Ping Wu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, P. R. China
| | - Chenxin Cai
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, P. R. China
| |
Collapse
|
8
|
Tian Y, Wang H, Yan L, Zhang X, Falak A, Guo Y, Chen P, Dong F, Sun L, Chu W. A Generalized Methodology of Designing 3D SERS Probes with Superior Detection Limit and Uniformity by Maximizing Multiple Coupling Effects. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900177. [PMID: 31179223 PMCID: PMC6548962 DOI: 10.1002/advs.201900177] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/24/2019] [Indexed: 05/27/2023]
Abstract
Accurate design of high-performance 3D surface-enhanced Raman scattering (SERS) probes is the desired target, which is possibly implemented with a prerequisite of quantifying formidable multiple coupling effects involved. Herein, by combining theory and experiments on 3D periodic Au/SiO2 nanogrid models, a generalized methodology of accurately designing high performance 3D SERS probes is developed. Structural symmetry, dimensions, Au roughness, and polarization are successfully correlated quantitatively to intrinsic localized electromagnetic field (EMF) enhancements by calculating surface plasmon polariton (SPP), localized surface plasmon resonance (LSPR), optical standing wave effects, and their couplings theoretically, which is experimentally verified. The hexagonal SERS probes optimized by this methodology realize over two orders of magnitudes (405 times) improvement of detection limit for Rhodamine 6G model molecules (2.17 × 10-11 m) compared to the unoptimized probes with the same number density of hot spots, an enhancement factor of 3.4 × 108, a uniformity of 5.52%, and are successfully applied to the detection of 5 × 10-11 m Hg ions in water. This unambiguously results from the Au roughness-independent extra 144% contribution of LSPR effects excited by SPP interference waves as secondary sources, which is very unusual to be beyond the conventional recognition.
Collapse
Affiliation(s)
- Yi Tian
- Nanofabrication LaboratoryCAS Key Laboratory for Nanosystems and Hierachical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P. R. China
| | - Hanfu Wang
- Nanofabrication LaboratoryCAS Key Laboratory for Nanosystems and Hierachical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P. R. China
| | - Lanqin Yan
- Nanofabrication LaboratoryCAS Key Laboratory for Nanosystems and Hierachical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P. R. China
| | - Xianfeng Zhang
- Nanofabrication LaboratoryCAS Key Laboratory for Nanosystems and Hierachical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P. R. China
| | - Attia Falak
- Nanofabrication LaboratoryCAS Key Laboratory for Nanosystems and Hierachical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P. R. China
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Yanjun Guo
- Nanofabrication LaboratoryCAS Key Laboratory for Nanosystems and Hierachical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P. R. China
| | - Peipei Chen
- Nanofabrication LaboratoryCAS Key Laboratory for Nanosystems and Hierachical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P. R. China
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Fengliang Dong
- Nanofabrication LaboratoryCAS Key Laboratory for Nanosystems and Hierachical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P. R. China
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Lianfeng Sun
- Nanofabrication LaboratoryCAS Key Laboratory for Nanosystems and Hierachical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P. R. China
| | - Weiguo Chu
- Nanofabrication LaboratoryCAS Key Laboratory for Nanosystems and Hierachical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P. R. China
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| |
Collapse
|
9
|
Tan L, Liu C, Wang Y, Sun J, Dong J, Qian W. Fabrication of SERS substrates containing dense “hot spots” by assembling star-shaped nanoparticles on superhydrophobic surfaces. NEW J CHEM 2017. [DOI: 10.1039/c7nj00226b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In this work, efficient SERS substrates containing dense hot spots were fabricated by assembling AuNS@Ag on SMCSL superhydrophobic platforms, based on an evaporation assembly technique.
Collapse
Affiliation(s)
- Lianqiao Tan
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Chang Liu
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Ying Wang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Jie Sun
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Jian Dong
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Weiping Qian
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| |
Collapse
|
10
|
Sun F, Galvan DD, Jain P, Yu Q. Multi-functional, thiophenol-based surface chemistry for surface-enhanced Raman spectroscopy. Chem Commun (Camb) 2017; 53:4550-4561. [DOI: 10.1039/c7cc01577a] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This article highlights the recent advances of thiophenol-based surface chemistry for the applications in surface-enhanced Raman spectroscopy (SERS).
Collapse
Affiliation(s)
- Fang Sun
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
| | - Daniel D. Galvan
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
| | - Priyesh Jain
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
| | - Qiuming Yu
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
| |
Collapse
|
11
|
Jeong JW, Arnob MMP, Baek KM, Lee SY, Shih WC, Jung YS. 3D Cross-Point Plasmonic Nanoarchitectures Containing Dense and Regular Hot Spots for Surface-Enhanced Raman Spectroscopy Analysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:8695-8704. [PMID: 27511881 DOI: 10.1002/adma.201602603] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 07/04/2016] [Indexed: 05/17/2023]
Abstract
3D stacking of plasmonic nanostructures is achieved using a solvent-assisted nanotransfer printing (S-nTP) technique to provide extremely dense and regular hot spot arrays for highly sensitive surface-enhanced Raman spectroscopy (SERS) analysis. Moreover, hybrid plasmonic nanostructures obtained by printing the nanowires on a continuous metal film or graphene surface show significantly intensified SERS signals due to vertical plasmonic coupling.
Collapse
Affiliation(s)
- Jae Won Jeong
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, South Korea
- Powder Technology Department, Korea Institute of Materials Science (KIMS), Changwon, 641831, South Korea
| | - Md Masud Parvez Arnob
- Department of Electrical and Computer Engineering, University of Houston, 4800 Calhoun Road, Houston, TX, 77204, USA
| | - Kwang-Min Baek
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, South Korea
| | - Seung Yong Lee
- Center for Materials Architecturing, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seong-buk-gu, Seoul, 136-791, South Korea
| | - Wei-Chuan Shih
- Department of Electrical and Computer Engineering, University of Houston, 4800 Calhoun Road, Houston, TX, 77204, USA
| | - Yeon Sik Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, South Korea.
| |
Collapse
|
12
|
Zeng Z, Liu Y, Wei J. Recent advances in surface-enhanced raman spectroscopy (SERS): Finite-difference time-domain (FDTD) method for SERS and sensing applications. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.06.009] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
Deng Y, Idso MN, Galvan DD, Yu Q. Optofluidic microsystem with quasi-3 dimensional gold plasmonic nanostructure arrays for online sensitive and reproducible SERS detection. Anal Chim Acta 2015; 863:41-8. [DOI: 10.1016/j.aca.2015.01.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Revised: 01/02/2015] [Accepted: 01/12/2015] [Indexed: 10/24/2022]
|
14
|
Yi Z, Yi Y, Luo J, Ye X, Wu P, Ji X, Jiang X, Yi Y, Tang Y. Experimental and simulative study on surface enhanced Raman scattering of rhodamine 6G adsorbed on big bulk-nanocrystalline metal substrates. RSC Adv 2015. [DOI: 10.1039/c4ra06141a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Big bulk-nanocrystalline metal materials of silver (Ag) and aluminum (Al) for surface-enhanced Raman scattering (SERS) spectroscopy have been synthesized in a mold under different pressures using vacuum-warm-compaction (VWC) technology.
Collapse
Affiliation(s)
- Zao Yi
- College of Physics and Electronics
- Central South University
- Changsha 410083
- China
- Joint Laboratory for Extreme Conditions Matter Properties
| | - Yong Yi
- Joint Laboratory for Extreme Conditions Matter Properties
- Southwest University of Science and Technology and Research Center of Laser Fusion
- Mianyang 621010
- China
| | - Jiangshan Luo
- Research Center of Laser Fusion
- China Academy of Engineering Physics (CAEP)
- Mianyang 621900
- China
| | - Xin Ye
- Joint Laboratory for Extreme Conditions Matter Properties
- Southwest University of Science and Technology and Research Center of Laser Fusion
- Mianyang 621010
- China
- Research Center of Laser Fusion
| | - Pinghui Wu
- State Key Laboratory of Modern Optical Instrumentation
- Department of Optical Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiaochun Ji
- Joint Laboratory for Extreme Conditions Matter Properties
- Southwest University of Science and Technology and Research Center of Laser Fusion
- Mianyang 621010
- China
- Research Center of Laser Fusion
| | - Xiaodong Jiang
- Research Center of Laser Fusion
- China Academy of Engineering Physics (CAEP)
- Mianyang 621900
- China
| | - Yougen Yi
- College of Physics and Electronics
- Central South University
- Changsha 410083
- China
| | - Yongjian Tang
- Joint Laboratory for Extreme Conditions Matter Properties
- Southwest University of Science and Technology and Research Center of Laser Fusion
- Mianyang 621010
- China
- Research Center of Laser Fusion
| |
Collapse
|
15
|
Ho CC, Zhao K, Lee TY. Quasi-3D gold nanoring cavity arrays with high-density hot-spots for SERS applications via nanosphere lithography. NANOSCALE 2014; 6:8606-8611. [PMID: 24978350 DOI: 10.1039/c4nr00902a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Large-scale ordered arrays with dense hot spots are highly desirable substrates for practical applications such as surface-enhanced Raman scattering (SERS). In the past decade, most work has focused on using lateral gaps between two metal structures. However, the strength and density of the generated hot spots are limited to a 2D arrangement of nanostructures. In this work, we present a novel quasi-3D nanoring cavity structure, which contains a nanoring and a nanopillar in a nanohole. The fabrication is based on nanosphere lithography incorporated with dry etching and gold coating. Gold nanostructures with one layer (nanohole), 2 layers (nanohole + nanodisc), and 3 layers (nanohole + nanoring + nanopillar) were successfully fabricated and compared. The SERS performance of the three-layered nanostructures is about two orders of magnitude higher than the others. Finite-difference time-domain (FDTD) simulations show that incorporating nanopillars and nanorings into a nanohole array not only significantly increases the density of the hot spots but also achieves stronger electromagnetic field enhancements compared to a nanohole array. The simple fabrication of multilayered quasi-3D nanostructures provides a large-area and highly efficient SERS substrates for biological and chemical applications.
Collapse
Affiliation(s)
- Chi-Chih Ho
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, Taiwan.
| | | | | |
Collapse
|
16
|
Shao F, Lu Z, Liu C, Han H, Chen K, Li W, He Q, Peng H, Chen J. Hierarchical nanogaps within bioscaffold arrays as a high-performance SERS substrate for animal virus biosensing. ACS APPLIED MATERIALS & INTERFACES 2014; 6:6281-9. [PMID: 24359537 DOI: 10.1021/am4045212] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
A three-dimensional (3D) biomimetic SERS substrate with hierarchical nanogaps was formed on the bioscaffold arrays of cicada wings by one-step and reagents-free ion-sputtering techniques. This approach requires a minimal fabrication effort and cost and offers Ag nanoislands and Ag nanoflowers with four types of nanogaps (<10 nm) on the chitin nanopillars to generate a high density of hotspots (∼2000/μm2). The 3D biomimetic substrate shows a low detection limit to Rhodamine 6G (10(-13) M), high average enhancement factor (EF, 5.8×10(7)), excellent signal uniformity (5.4%), good stability, and suitability in biosensing. Furthermore, the finite-difference time-domain (FDTD) electric-field-distribution simulations illustrate that the 3D biomimetic SERS substrate provides the high-density hotspot area within a detection volumem, resulting in enormous SERS enhancement. In addition, the conspicuous far-field plasmon resonance peaks were not found to be a strong requirement for a high EF in 3D biomimetic substrates. Additionally, the novel substrate was applied in label-free animal viruses detection and differentiation with small amounts (1.0 μL) and low concentrations of analyte (1×10(3) PFU/mL), and it exhibited potential as an effective SERS platform for virus detection and sensing.
Collapse
Affiliation(s)
- Feng Shao
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University , Wuhan 430070, China
| | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Sun F, Bai T, Zhang L, Ella-Menye JR, Liu S, Nowinski AK, Jiang S, Yu Q. Sensitive and Fast Detection of Fructose in Complex Media via Symmetry Breaking and Signal Amplification Using Surface-Enhanced Raman Spectroscopy. Anal Chem 2014; 86:2387-94. [DOI: 10.1021/ac4040983] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Fang Sun
- Department of Chemical Engineering, and ‡Department of
Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Tao Bai
- Department of Chemical Engineering, and ‡Department of
Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Lei Zhang
- Department of Chemical Engineering, and ‡Department of
Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Jean-Rene Ella-Menye
- Department of Chemical Engineering, and ‡Department of
Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Sijun Liu
- Department of Chemical Engineering, and ‡Department of
Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Ann K. Nowinski
- Department of Chemical Engineering, and ‡Department of
Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Shaoyi Jiang
- Department of Chemical Engineering, and ‡Department of
Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Qiuming Yu
- Department of Chemical Engineering, and ‡Department of
Bioengineering, University of Washington, Seattle, Washington 98195, United States
| |
Collapse
|
18
|
Huang HL, Chou CF, Shiao SH, Liu YC, Huang JJ, Jen SU, Chiang HP. Surface plasmon-enhanced photoluminescence of DCJTB by using silver nanoparticle arrays. OPTICS EXPRESS 2013; 21 Suppl 5:A901-A908. [PMID: 24104584 DOI: 10.1364/oe.21.00a901] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
It is demonstrated that photoluminescence of DCJTB can be enhanced by surface plasmons occurred in silver nanoparticle arrays on glass substrates fabricated by using nanosphere lithography (NSL) combined with reactive ion etching (RIE). By changing the size of the seed polystyrene nanosphere with fixed thickness of SiO(2) film as a buffer layer between silver nanoparticles and fluorescent dye, we systematically studied the interaction between surface plasmons in Ag nanostructures and fluorescent dye by measuring the photoluminescence and time-resolved photoluminescence (TRPL) of the samples. As compared with pure DCJTB, it is observed that PL enhancement as high as 9.4 times and life time shortening from 0.966 ns shortened to 0.63 ns can be achieved with polystyrene nanosphere 430 nm in diameter. The physical origin due to plasmonic excitation has been clarified from 3D finite element simulations, as well as the assistance of UV-visible reflectance spectrum.
Collapse
|
19
|
Li M, Cushing SK, Zhang J, Suri S, Evans R, Petros WP, Gibson LF, Ma D, Liu Y, Wu N. Three-dimensional hierarchical plasmonic nano-architecture enhanced surface-enhanced Raman scattering immunosensor for cancer biomarker detection in blood plasma. ACS NANO 2013; 7:4967-76. [PMID: 23659430 PMCID: PMC3732798 DOI: 10.1021/nn4018284] [Citation(s) in RCA: 166] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A three-dimensional (3D) hierarchical plasmonic nano-architecture has been designed for a sensitive surface-enhanced Raman scattering (SERS) immunosensor for protein biomarker detection. The capture antibody molecules are immobilized on a plasmonic gold triangle nanoarray pattern. On the other hand, the detection antibody molecules are linked to the gold nanostar@Raman reporter@silica sandwich nanoparticles. When protein biomarkers are present, the sandwich nanoparticles are captured over the gold triangle nanoarray, forming a confined 3D plasmonic field, leading to the enhanced electromagnetic field in intensity and in 3D space. As a result, the Raman reporter molecules are exposed to a high density of "hot spots", which amplifies the Raman signal remarkably, improving the sensitivity of the SERS immunosensor. This SERS immunosensor exhibits a wide linear range (0.1 pg/mL to 10 ng/mL) and a low limit of detection (7 fg/mL) toward human immunoglobulin G protein in the buffer solution. This biosensor has been successfully used for detection of the vascular endothelial growth factor in the human blood plasma from clinical breast cancer patient samples.
Collapse
Affiliation(s)
- Ming Li
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506-6106, USA
| | - Scott K. Cushing
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506-6106, USA
- Department of Physics, West Virginia University, Morgantown, WV 26506, USA
| | - Jianming Zhang
- Institut National de la Recherche Scientifique, INRS-Énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
| | - Savan Suri
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506-6106, USA
| | - Rebecca Evans
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University, Morgantown, WV 26506, USA
- Alexander B. Osborn Hematopoietic Malignancy and Transplantation Program of the Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, WV 26506, USA
| | - William P. Petros
- Department of Basic Pharmaceutical Sciences, West Virginia University, Morgantown, WV 26506, USA
- Alexander B. Osborn Hematopoietic Malignancy and Transplantation Program of the Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, WV 26506, USA
| | - Laura F. Gibson
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University, Morgantown, WV 26506, USA
- Alexander B. Osborn Hematopoietic Malignancy and Transplantation Program of the Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, WV 26506, USA
| | - Dongling Ma
- Institut National de la Recherche Scientifique, INRS-Énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
| | - Yuxin Liu
- Lane Department of Computer Science and Electrical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Nianqiang Wu
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506-6106, USA
- Department of Basic Pharmaceutical Sciences, West Virginia University, Morgantown, WV 26506, USA
| |
Collapse
|
20
|
Xu J, Turner JW, Idso M, Biryukov SV, Rognstad L, Gong H, Trainer VL, Wells ML, Strom MS, Yu Q. In situ strain-level detection and identification of Vibrio parahaemolyticus using surface-enhanced Raman spectroscopy. Anal Chem 2013; 85:2630-7. [PMID: 23356387 DOI: 10.1021/ac3021888] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The outer membrane of a bacterium is composed of chemical and biological components that carry specific molecular information related to strains, growth stages, expressions to stimulation, and maybe even geographic differences. In this work, we demonstrate that the biochemical information embedded in the outer membrane can be used for rapid detection and identification of pathogenic bacteria using surface-enhanced Raman spectroscopy (SERS). We used seven different strains of the marine pathogen Vibrio parahaemolyticus as a model system. The strains represent four genetically distinct clades isolated from clinical and environmental sources in Washington, U.S.A. The unique quasi-3D (Q3D) plasmonic nanostructure arrays, optimized using finite-difference time-domain (FDTD) calculations, were used as SERS-active substrates for sensitive and reproducible detection of these bacteria. SERS barcodes were generated on the basis of SERS spectra and were used to successfully detect individual strains in both blind samples and mixtures. The sensing and detection methods developed in this work could have broad applications in the areas of environmental monitoring, biomedical diagnostics, and homeland security.
Collapse
Affiliation(s)
- Jiajie Xu
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
| | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Li M, Cushing SK, Liang H, Suri S, Ma D, Wu N. Plasmonic nanorice antenna on triangle nanoarray for surface-enhanced Raman scattering detection of hepatitis B virus DNA. Anal Chem 2013; 85:2072-8. [PMID: 23320458 DOI: 10.1021/ac303387a] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The sensitivity and the limit of detection of Raman sensors are limited by the extremely small scattering cross section of Raman labels. Silver nanorice antennae are coupled with a patterned gold triangle nanoarray chip to create spatially broadened plasmonic "hot spots", which enables a large density of Raman labels to experience strong local electromagnetic field. Finite difference time domain simulations have confirmed that the quasi-periodic structure increases the intensity and the area of the surface plasmon resonance (SPR), which enhances the surface-enhanced Raman scattering (SERS) signal significantly. The SERS signal of the nanorice/DNA/nanoarray chip is compared with that of the nanorice/DNA/film chip. The SERS signal is greatly enhanced when the Ag nanorices are coupled to the periodic Au nanoarray instead of the planar film chip. The resulting spatially broadened SPR field enables the SERS biosensor with a limit of detection of 50 aM toward hepatitis B virus DNA with the capability of discriminating a single-base mutant of DNA. This sensing platform can be extended to detect other chemical species and biomolecules such as proteins and small molecules.
Collapse
Affiliation(s)
- Ming Li
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506-6106, United States
| | | | | | | | | | | |
Collapse
|
22
|
Wang D, Yu X, Yu Q. X-shaped quasi-3D plasmonic nanostructure arrays for enhancing electric field and Raman scattering. NANOTECHNOLOGY 2012; 23:405201. [PMID: 22983626 DOI: 10.1088/0957-4484/23/40/405201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We propose and demonstrate strongly enhancing electric field and Raman scattering with a large tolerance to the light incident angle and polarization by using x-shaped quasi-3D plasmonic nanostructure arrays (X-Q3D-PNAs). The finite-difference time-domain simulations were used to study the reflectance spectra and electric field profiles of X-Q3D-PNAs. Results show that both surface plasmon polaritons and localized surface plasmon polaritons (LSPPs) can be generated at the metal/dielectric interfaces of the top gold thin film with square grating x-shaped nanoholes. The resonance of the LSPPs generated at the gold islands formed between x-shaped nanoholes at the top gold thin film greatly enhance the electric fields at the tips of the cross-sectors of the x-shaped nanoholes. Both plasmon resonances and electric field enhancements are affected by the structural dimensions. The strong electric field enhancement and the large tolerance to the laser polarization were demonstrated by surface-enhanced Raman scattering experiments. This unique plasmonic property of X-Q3D-PNAs could be attractive for photovoltaics and biosensing applications.
Collapse
Affiliation(s)
- Daqian Wang
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA
| | | | | |
Collapse
|
23
|
Jana D, Mandal A, De G. High Raman enhancing shape-tunable ag nanoplates in alumina: a reliable and efficient SERS technique. ACS APPLIED MATERIALS & INTERFACES 2012; 4:3330-3334. [PMID: 22732099 DOI: 10.1021/am300781h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Shape-tunable Ag nanoplates in alumina enable very strong SERS performances showing Raman enhancement factor >1 × 10(9), and allows for easy detection of analyte methylene blue having a concentration in the picomolar range. Raman enhancements have been systematically studied during the Ag nanoparticle-shape evolution from spherical nanoparticles to hexagonal nanoplates with sharp corners to truncated triangular nanoplates in alumina sol. Large SERS enhancement has been observed because of the uniform dispersion and embedment of Ag nanoplates in a relatively high dielectric alumina network where analyte molecules are held. This new approach gives uniform and strong SERS signal with reproducibility.
Collapse
Affiliation(s)
- Debrina Jana
- Nano-Structured Materials Division, CSIR-Central Glass & Ceramic Research Institute , 196, Raja S. C. Mullick Road, Kolkata 700032, India
| | | | | |
Collapse
|