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Lee H, Im S, Lee C, Lee H, Chu SW, Ho AHP, Kim D. Probing Temperature-Induced Plasmonic Nonlinearity: Unveiling Opto-Thermal Effects on Light Absorption and Near-Field Enhancement. Nano Lett 2024; 24:3598-3605. [PMID: 38407029 DOI: 10.1021/acs.nanolett.3c04420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Precise measurement and control of local heating in plasmonic nanostructures are vital for diverse nanophotonic devices. Despite significant efforts, challenges in understanding temperature-induced plasmonic nonlinearity persist, particularly in light absorption and near-field enhancement due to the absence of suitable measurement techniques. This study presents an approach allowing simultaneous measurements of light absorption and near-field enhancement through angle-resolved near-field scanning optical microscopy with iterative opto-thermal analysis. We revealed gold thin films exhibit sublinear nonlinearity in near-field enhancement due to nonlinear opto-thermal effects, while light absorption shows both sublinear and superlinear behaviors at varying thicknesses. These observations align with predictions from a simple harmonic oscillation model, in which changes in damping parameters affect light absorption and field enhancement differently. The sensitivity of our method was experimentally examined by measuring the opto-thermal responses of three-dimensional nanostructure arrays. Our findings have direct implications for advancing plasmonic applications, including photocatalysis, photovoltaics, photothermal effects, and surface-enhanced Raman spectroscopy.
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Affiliation(s)
- Hongki Lee
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea 03722
| | - Seongmin Im
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea 03722
| | - Changhun Lee
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea 03722
| | - Hyunwoong Lee
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea 03722
| | - Shi-Wei Chu
- Department of Physics National, Taiwan University, Taipei, Taiwan 10617
- Brain Research Center National, Tsing Hua University, Hsinchu, Taiwan 30013
| | - Aaron Ho-Pui Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Donghyun Kim
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea 03722
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Chen Y, Chen Z, Li T, Qiu M, Zhang J, Wang Y, Yuan W, Ho AHP, Al-Hartomy O, Wageh S, Al-Sehemi AG, Shi X, Li J, Xie Z, Xuejin L, Zhang H. Ultrasensitive and Specific Clustered Regularly Interspaced Short Palindromic Repeats Empowered a Plasmonic Fiber Tip System for Amplification-Free Monkeypox Virus Detection and Genotyping. ACS Nano 2023. [PMID: 37384815 DOI: 10.1021/acsnano.3c05007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
The urgent necessity for highly sensitive diagnostic tools has been accentuated by the ongoing mpox (monkeypox) virus pandemic due to the complexity in identifying asymptomatic and presymptomatic carriers. Traditional polymerase chain reaction-based tests, despite their effectiveness, are hampered by limited specificity, expensive and bulky equipment, labor-intensive operations, and time-consuming procedures. In this study, we present a clustered regularly interspaced short palindromic repeats (CRISPR)/Cas12a-based diagnostic platform with a surface plasmon resonance-based fiber tip (CRISPR-SPR-FT) biosensor. The compact CRISPR-SPR-FT biosensor, with a 125 μm diameter, offers high stability and portability, enabling exceptional specificity for mpox diagnosis and precise identification of samples with a fatal mutation site (L108F) in the F8L gene. The CRISPR-SPR-FT system can analyze viral double-stranded DNA from mpox virus without amplification in under 1.5 h with a limit of detection below 5 aM in plasmids and about 59.5 copies/μL when in pseudovirus-spiked blood samples. Our CRISPR-SPR-FT biosensor thus offers fast, sensitive, portable, and accurate target nucleic acid sequence detection.
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Affiliation(s)
- Yuzhi Chen
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
- Shenzhen Key Laboratory of Sensor Technology, Shenzhen 518060, People's Republic of China
| | - Zhi Chen
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, Guangdong 511518, People's Republic of China
- Shenzhen International Institute for Biomedical Research, Shenzhen, Guangdong 518110, People's Republic of China
| | - Tianzhong Li
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Meng Qiu
- College of Chemistry and Chemical Engineering, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, People's Republic of China
| | - Jinghan Zhang
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
- Shenzhen Key Laboratory of Sensor Technology, Shenzhen 518060, People's Republic of China
- The Chinese University of Hong Kong, Shenzhen, Guangdong 518060, People's Republic of China
| | - Yan Wang
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
- Shenzhen Key Laboratory of Sensor Technology, Shenzhen 518060, People's Republic of China
| | - Wu Yuan
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, People's Republic of China
| | - Aaron Ho-Pui Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, People's Republic of China
| | - Omar Al-Hartomy
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Swelm Wageh
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abdullah G Al-Sehemi
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Xin Shi
- China Medical University, Shenyang, Liaoning 110001, People's Republic of China
- School of Mathematics and Information Science, Shandong Technology and Business University, Yantai, Shandong 264005 People's Republic of China
- Manchester Metropolitan University (MMU), Operations, Technology, Events and Hospitality Management, Business School, All Saints Campus, Oxford Road, Manchester M15 6BH, United Kingdom
| | - Jingfeng Li
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
- Shenzhen International Institute for Biomedical Research, Shenzhen, Guangdong 518110, People's Republic of China
| | - Zhongjian Xie
- Institute of Pediatrics, Shenzhen Children's Hospital, Shenzhen, Guangdong 518038, People's Republic of China
| | - Li Xuejin
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
- Shenzhen Key Laboratory of Sensor Technology, Shenzhen 518060, People's Republic of China
- The Chinese University of Hong Kong, Shenzhen, Guangdong 518060, People's Republic of China
| | - Han Zhang
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
- International Collaborative Laboratory of 2D, Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, People's Republic of China
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Li L, He JA, Wang W, Xia Y, Song L, Chen ZH, Zuo HZ, Tan XP, Ho AHP, Kong SK, Loo JFC, Li HW, Gu D. Development of a direct reverse-transcription quantitative PCR (dirRT-qPCR) assay for clinical Zika diagnosis. Int J Infect Dis 2019; 85:167-174. [PMID: 31202908 DOI: 10.1016/j.ijid.2019.06.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/28/2019] [Accepted: 06/09/2019] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE The nucleic acid-based polymerase chain reaction (PCR) assay is commonly applied to detect infection with Zika virus (ZIKV). However, the time- and labor-intensive sample pretreatment required to remove inhibitors that cause false-negative results in clinical samples is impractical for use in resource-limited areas. The aim was to develop a direct reverse-transcription quantitative PCR (dirRT-qPCR) assay for ZIKV diagnosis directly from clinical samples. METHODS The combination of inhibitor-tolerant polymerases, polymerase enhancers, and dirRT-qPCR conditions was optimized for various clinical samples including blood and serum. Sensitivity was evaluated with standard DNA spiked in simulated samples. Specificity was evaluated using clinical specimens of other infections such as dengue virus and chikungunya virus. RESULTS High specificity and sensitivity were achieved, and the limit of detection (LOD) of the assay was 9.5×101 ZIKV RNA copies/reaction. The on-site clinical diagnosis of ZIKV required a 5μl sample and the diagnosis could be completed within 2h. CONCLUSIONS This robust dirRT-qPCR assay shows a high potential for point-of-care diagnosis, and the primer-probe combinations can also be extended for other viral detection. It realizes the goal of large-scale on-site screening for viral infections and could be used for early diagnosis and the prevention and control of viral outbreaks.
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Affiliation(s)
- Lang Li
- School of Public Health, The Second School of Clinical Medicine, Guangdong Medical University, Dongguan, 523808, PR China; Shenzhen International Travel Health Care Center and Shenzhen Academy of Inspection and Quarantine, Shenzhen Customs District, Shenzhen, 518033, PR China
| | - Jian-An He
- Shenzhen International Travel Health Care Center and Shenzhen Academy of Inspection and Quarantine, Shenzhen Customs District, Shenzhen, 518033, PR China
| | - Wei Wang
- Department of Laboratory Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, 518035, PR China
| | - Yun Xia
- Shenzhen International Travel Health Care Center and Shenzhen Academy of Inspection and Quarantine, Shenzhen Customs District, Shenzhen, 518033, PR China
| | - Li Song
- School of Public Health, The Second School of Clinical Medicine, Guangdong Medical University, Dongguan, 523808, PR China; Shenzhen International Travel Health Care Center and Shenzhen Academy of Inspection and Quarantine, Shenzhen Customs District, Shenzhen, 518033, PR China
| | - Ze-Han Chen
- School of Public Health, The Second School of Clinical Medicine, Guangdong Medical University, Dongguan, 523808, PR China
| | - Hang-Zhi Zuo
- School of Public Health, The Second School of Clinical Medicine, Guangdong Medical University, Dongguan, 523808, PR China
| | - Xuan-Ping Tan
- Shenzhen gene-one Biotechnology Co., Ltd., 518000, PR China
| | - Aaron Ho-Pui Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Siu-Kai Kong
- Biochemistry Programme, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Jacky Fong-Chuen Loo
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, PR China; Biochemistry Programme, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong SAR, PR China.
| | - Hua-Wen Li
- School of Public Health, The Second School of Clinical Medicine, Guangdong Medical University, Dongguan, 523808, PR China.
| | - Dayong Gu
- Shenzhen International Travel Health Care Center and Shenzhen Academy of Inspection and Quarantine, Shenzhen Customs District, Shenzhen, 518033, PR China; Department of Laboratory Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, 518035, PR China.
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