1
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Granados-Zambrano LF, Korterik JP, Estudillo-Ayala JM, Laguna RR, Jauregui-Vazquez D, Offerhaus HL, Alvarez-Chavez JA. Plasma-based optical fiber tapering rig. HARDWAREX 2024; 19:e00578. [PMID: 39286760 PMCID: PMC11404192 DOI: 10.1016/j.ohx.2024.e00578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 08/19/2024] [Accepted: 08/24/2024] [Indexed: 09/19/2024]
Abstract
Optical fiber tapers have been widely proposed and demonstrated as reliable optical fiber structures for sensing, lasers, and supercontinuum generation applications. This paper proposes an innovative approach to fabricating optical fiber tapers using plasma as the heat source. From our literature review, and to the best of our knowledge, this is the first time that plasma has been used as the heat source for producing optical fiber tapers. The system is not intricate and simple to replicate. Moreover, the elements involved make this machine attractive to research groups devoted to optical fibers. The setup consistently generates robust biconical optical fiber tapers. A typical waist of ∼8 μm and taper lengths ranging from 3 to 15 mm are achieved. Our results showed tapers with interference fringes up to 12 dB, from 1465 nm to 1599 nm. Furthermore, the statistical evaluation presented demonstrates a good level of reproducibility in our tapering process.
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Affiliation(s)
- L F Granados-Zambrano
- Optical Sciences Group - University of Twente, Drienerlolaan 5, 7522 NB Enschede, the Netherlands
- División de Ingenierías Campus Irapuato - Salamanca, Universidad de Guanajuato, Carretera Salamanca-Valle de Santiago km 3.5 + 1.8 km, Salamanca, Guanajuato 36885, Mexico
| | - J P Korterik
- Optical Sciences Group - University of Twente, Drienerlolaan 5, 7522 NB Enschede, the Netherlands
| | - J M Estudillo-Ayala
- División de Ingenierías Campus Irapuato - Salamanca, Universidad de Guanajuato, Carretera Salamanca-Valle de Santiago km 3.5 + 1.8 km, Salamanca, Guanajuato 36885, Mexico
| | - R Rojas Laguna
- División de Ingenierías Campus Irapuato - Salamanca, Universidad de Guanajuato, Carretera Salamanca-Valle de Santiago km 3.5 + 1.8 km, Salamanca, Guanajuato 36885, Mexico
| | - D Jauregui-Vazquez
- Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), División de Física Aplicada-Departamento de Óptica, Carretera Ensenada-Tijuana, No. 3918, Zona Playitas, Ensenada 22860, Mexico
| | - H L Offerhaus
- Optical Sciences Group - University of Twente, Drienerlolaan 5, 7522 NB Enschede, the Netherlands
| | - J A Alvarez-Chavez
- Optical Sciences Group - University of Twente, Drienerlolaan 5, 7522 NB Enschede, the Netherlands
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2
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Zheng P, Raj P, Liang L, Wu L, Paidi SK, Kim JH, Barman I. Label-free plasmonic spectral profiling of serum DNA. Biosens Bioelectron 2024; 254:116199. [PMID: 38492362 PMCID: PMC11056035 DOI: 10.1016/j.bios.2024.116199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/07/2024] [Accepted: 03/07/2024] [Indexed: 03/18/2024]
Abstract
Genetic and epigenetic modifications are linked to the activation of oncogenes and inactivation of tumor suppressor genes. Likewise, the associated molecular alternations can best inform precision medicine for personalized tumor treatment. Therefore, performing characterization of genetic and epigenetic alternations at the molecular level represents a crucial step in early diagnosis and/or therapeutics of cancer. However, the prevailing methods for DNA analysis involve a series of tedious and complicated steps, in which important genetic and epigenetic information could be lost or altered. To provide a potential approach for non-invasive, direct, and efficient DNA analysis, herein, we present a promising strategy for label-free molecular profiling of serum DNA in its pristine form by fusing surface-enhanced Raman spectroscopy with machine learning on a superior plasmonic nanostructured platform. Using DNA methylation and single-point mutation as two case studies, the presented strategy allows a well-balanced sensitive and specific detection of epigenetic and genetic changes at the single-nucleotide level in serum. We envision the presented label-free strategy could serve as a versatile tool for direct molecular profiling in pristine forms of a wide range of biological markers and aid biomedical diagnostics as well as therapeutics.
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Affiliation(s)
- Peng Zheng
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States
| | - Piyush Raj
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States
| | - Le Liang
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States; The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China; Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China
| | - Lintong Wu
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States
| | - Santosh Kumar Paidi
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States
| | - Jeong Hee Kim
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States; Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, United States; The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, United States.
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3
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Ning W, Hu S, Zhou C, Luo J, Li Y, Zhang C, Luo Z, Li Y. An ultrasensitive J-shaped optical fiber LSPR aptasensor for the detection of Helicobacter pylori. Anal Chim Acta 2023; 1278:341733. [PMID: 37709468 DOI: 10.1016/j.aca.2023.341733] [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: 05/31/2023] [Revised: 08/16/2023] [Accepted: 08/16/2023] [Indexed: 09/16/2023]
Abstract
The development of label-free and sensitive detection of pathogenic bacteria is of great significance for disease prevention and public health protection. In this study, an originally bent structure, named as J-shaped optical fiber probe, was first designed to engineer a localized surface plasmon resonance (LSPR) aptamer biosensor for the rapid and ultrasensitive detection of Helicobacter pylori (H. pylori). The J-shaped optical fiber probe exhibited a significant improvement in refractive index sensitivity (RIS) and LSPR signal response. Meantime, the original sequence of aptamer was truncated in order to effectively capture H. pylori on the optical fiber surface. Besides, a spacer nucleic acid with short stem-loop structure was adopted to control the aptamer density on gold nanoparticles (AuNPs) on the surface of the J-shaped optical fiber probe, which displayed a further enhancement in LSPR signal response. Benefitting from these creative designs, the proposed LSPR biosensor can realize label-free and sensitive detection of H. pylori with a detection limit as low as 45 CFU/mL and a wide linear range from 1.0 × 102 CFU/mL to 1.0 × 108 CFU/mL. At the same time, the sensing strategy can detect the pathogenic bacteria from actual water samples in one step just in 30 min without any sample pretreatment. Due to the advantages of ease-to-preparation, high sensitivity, and rapid analysis, this proposed J-shaped optical fiber LSPR aptasensor can provide a potential strategy for point-of-caring detection of pathogenic bacteria in environmental monitoring and disease diagnosis.
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Affiliation(s)
- Wei Ning
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China
| | - Shunming Hu
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China
| | - Chen Zhou
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China
| | - Jie Luo
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China
| | - Yu Li
- Research Center of Analytical Instrumentation, College of Life Science, Sichuan University, Chengdu, 610065, China
| | - Chuyan Zhang
- Center for Med+X Manufacturing, Precision Medicine Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zewei Luo
- Research Center of Analytical Instrumentation, School of Mechanical Engineering, Sichuan University, Chengdu, 610065, China.
| | - Yongxin Li
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China.
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4
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Zhang W, Lang X, Liu X, Li G, Singh R, Zhang B, Kumar S. Advances in Tapered Optical Fiber Sensor Structures: From Conventional to Novel and Emerging. BIOSENSORS 2023; 13:644. [PMID: 37367009 DOI: 10.3390/bios13060644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/30/2023] [Accepted: 06/07/2023] [Indexed: 06/28/2023]
Abstract
Optical fiber sensors based on tapered optical fiber (TOF) structure have attracted a considerable amount of attention from researchers due to the advantages of simple fabrication, high stability, and diverse structures, and have great potential for applications in many fields such as physics, chemistry, and biology. Compared with conventional optical fibers, TOF with their unique structural characteristics significantly improves the sensitivity and response speed of fiber-optic sensors and broadens the application range. This review presents an overview of the latest research status and characteristics of fiber-optic sensors and TOF sensors. Then, the working principle of TOF sensors, fabrication schemes of TOF structures, novel TOF structures in recent years, and the growing emerging application areas are described. Finally, the development trends and challenges of TOF sensors are prospected. The objective of this review is to convey novel perspectives and strategies for the performance optimization and design of TOF sensors based on fiber-optic sensing technologies.
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Affiliation(s)
- Wen Zhang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
| | - Xianzheng Lang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
| | - Xuecheng Liu
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
| | - Guoru Li
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
| | - Ragini Singh
- College of Agronomy, Liaocheng University, Liaocheng 252059, China
| | - Bingyuan Zhang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
| | - Santosh Kumar
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
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5
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Wen L, Du X, Liu T, Meng W, Li T, Li M, Zhang M. Colorimetric Aptasensor for the Visual and Microplate Determination of Clusterin in Human Urine Based on Aggregation Characteristics of Gold Nanoparticles. ACS OMEGA 2023; 8:16000-16008. [PMID: 37179603 PMCID: PMC10173331 DOI: 10.1021/acsomega.2c08040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 04/07/2023] [Indexed: 05/15/2023]
Abstract
Clusterin has the potential to become the biomarker of multiple diseases, but its clinical quantitative detection methods are limited, which restricts its research progress as a biomarker. A rapid and visible colorimetric sensor for clusterin detection based on sodium chloride-induced aggregation characteristic of gold nanoparticles (AuNPs) was successfully constructed. Unlike the existing methods based on antigen-antibody recognition reactions, the aptamer of clusterin was used as the sensing recognition element. The aptamer could protect AuNPs from aggregation caused by sodium chloride, but clusterin bound with aptamer detached it from AuNPs, thereby inducing aggregation again. Simultaneously, the color change from red in the dispersed state to purple gray in the aggregated state made it possible to preliminarily judge the concentration of clusterin by observation. This biosensor showed a linear range of 0.02-2 ng/mL and good sensitivity with a detection limit of 5.37 pg/mL. The test results of clusterin in spiked human urine confirmed that the recovery rate was satisfactory. The proposed strategy is helpful for the development of label-free point-of-care testing equipment for clinical testing of clusterin, which is cost-effective and feasible.
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Affiliation(s)
- Lina Wen
- Beijing
Key Laboratory of Urinary Cellular Molecular Diagnostics, No. 10, Tieyi Road, Yangfangdian
Street, Haidian District, Beijing 100038, China
- Department
of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, No. 10, Tieyi Road, Yangfangdian Street, Haidian
District, Beijing 100038, China
| | - Xiaoyu Du
- Beijing
Key Laboratory of Urinary Cellular Molecular Diagnostics, No. 10, Tieyi Road, Yangfangdian
Street, Haidian District, Beijing 100038, China
- Clinical
Laboratory Medicine, Peking University Ninth
School of Clinical Medicine, No. 10, Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China
| | - Tianci Liu
- Beijing
Key Laboratory of Urinary Cellular Molecular Diagnostics, No. 10, Tieyi Road, Yangfangdian
Street, Haidian District, Beijing 100038, China
- Clinical
Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, No. 10, Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China
| | - Wen Meng
- Department
of Infection Prevention and Control, Peking
University People’s Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing 100044, China
| | - Tao Li
- Beijing
Key Laboratory of Urinary Cellular Molecular Diagnostics, No. 10, Tieyi Road, Yangfangdian
Street, Haidian District, Beijing 100038, China
- Clinical
Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, No. 10, Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China
| | - Mengjie Li
- Beijing
Key Laboratory of Urinary Cellular Molecular Diagnostics, No. 10, Tieyi Road, Yangfangdian
Street, Haidian District, Beijing 100038, China
- Clinical
Laboratory Medicine, Peking University Ninth
School of Clinical Medicine, No. 10, Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China
| | - Man Zhang
- Beijing
Key Laboratory of Urinary Cellular Molecular Diagnostics, No. 10, Tieyi Road, Yangfangdian
Street, Haidian District, Beijing 100038, China
- Clinical
Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, No. 10, Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China
- Clinical
Laboratory Medicine, Peking University Ninth
School of Clinical Medicine, No. 10, Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China
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6
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Wang Z, Lou X. Recent Progress in Functional-Nucleic-Acid-Based Fluorescent Fiber-Optic Evanescent Wave Biosensors. BIOSENSORS 2023; 13:bios13040425. [PMID: 37185500 PMCID: PMC10135899 DOI: 10.3390/bios13040425] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/20/2023] [Accepted: 03/25/2023] [Indexed: 05/17/2023]
Abstract
Biosensors capable of onsite and continuous detection of environmental and food pollutants and biomarkers are highly desired, but only a few sensing platforms meet the "2-SAR" requirements (sensitivity, specificity, affordability, automation, rapidity, and reusability). A fiber optic evanescent wave (FOEW) sensor is an attractive type of portable device that has the advantages of high sensitivity, low cost, good reusability, and long-term stability. By utilizing functional nucleic acids (FNAs) such as aptamers, DNAzymes, and rational designed nucleic acid probes as specific recognition ligands, the FOEW sensor has been demonstrated to be a general sensing platform for the onsite and continuous detection of various targets ranging from small molecules and heavy metal ions to proteins, nucleic acids, and pathogens. In this review, we cover the progress of the fluorescent FNA-based FOEW biosensor since its first report in 1995. We focus on the chemical modification of the optical fiber and the sensing mechanisms for the five above-mentioned types of targets. The challenges and prospects on the isolation of high-quality aptamers, reagent-free detection, long-term stability under application conditions, and high throughput are also included in this review to highlight the future trends for the development of FOEW biosensors capable of onsite and continuous detection.
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Affiliation(s)
- Zheng Wang
- Department of Chemistry, Capital Normal University, Xisanhuan North Road. 105, Beijing 100048, China
| | - Xinhui Lou
- Department of Chemistry, Capital Normal University, Xisanhuan North Road. 105, Beijing 100048, China
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7
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Ujah E, Lai M, Slaughter G. Ultrasensitive tapered optical fiber refractive index glucose sensor. Sci Rep 2023; 13:4495. [PMID: 36934144 PMCID: PMC10024692 DOI: 10.1038/s41598-023-31127-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 03/07/2023] [Indexed: 03/20/2023] Open
Abstract
Refractive index (RI) sensors are of great interest for label-free optical biosensing. A tapered optical fiber (TOF) RI sensor with micron-sized waist diameters can dramatically enhance sensor sensitivity by reducing the mode volume over a long distance. Here, a simple and fast method is used to fabricate highly sensitive refractive index sensors based on localized surface plasmon resonance (LSPR). Two TOFs (l = 5 mm) with waist diameters of 5 µm and 12 µm demonstrated sensitivity enhancement at λ = 1559 nm for glucose sensing (5-45 wt%) at room temperature. The optical power transmission decreased with increasing glucose concentration due to the interaction of the propagating light in the evanescent field with glucose molecules. The coating of the TOF with gold nanoparticles (AuNPs) as an active layer for glucose sensing generated LSPR through the interaction of the evanescent wave with AuNPs deposited at the tapered waist. The results indicated that the TOF (Ø = 5 µm) exhibited improved sensing performance with a sensitivity of 1265%/RIU compared to the TOF (Ø = 12 µm) at 560%/RIU towards glucose. The AuNPs were characterized using scanning electron microscopy and ultraviolent-visible spectroscopy. The AuNPs-decorated TOF (Ø = 12 µm) demonstrated a high sensitivity of 2032%/RIU toward glucose. The AuNPs-decorated TOF sensor showed a sensitivity enhancement of nearly 4 times over TOF (Ø = 12 µm) with RI ranging from 1.328 to 1.393. The fabricated TOF enabled ultrasensitive glucose detection with good stability and fast response that may lead to next-generation ultrasensitive biosensors for real-world applications, such as disease diagnosis.
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Affiliation(s)
- Erem Ujah
- Center for Bioelectronics, Old Dominion University, Norfolk, VA, 23508, USA
- Department of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA, 23508, USA
| | - Meimei Lai
- Center for Bioelectronics, Old Dominion University, Norfolk, VA, 23508, USA
| | - Gymama Slaughter
- Center for Bioelectronics, Old Dominion University, Norfolk, VA, 23508, USA.
- Department of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA, 23508, USA.
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8
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Simone G. Trends of Biosensing: Plasmonics through Miniaturization and Quantum Sensing. Crit Rev Anal Chem 2023:1-26. [PMID: 36601882 DOI: 10.1080/10408347.2022.2161813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Despite being extremely old concepts, plasmonics and surface plasmon resonance-based biosensors have been increasingly popular in the recent two decades due to the growing interest in nanooptics and are now of relevant significance in regards to applications associated with human health. Plasmonics integration into point-of-care devices for health surveillance has enabled significant levels of sensitivity and limit of detection to be achieved and has encouraged the expansion of the fields of study and market niches devoted to the creation of quick and incredibly sensitive label-free detection. The trend reflects in wearable plasmonic sensor development as well as point-of-care applications for widespread applications, demonstrating the potential impact of the new generation of plasmonic biosensors on human well-being through the concepts of personalized medicine and global health. In this context, the aim here is to discuss the potential, limitations, and opportunities for improvement that have arisen as a result of the integration of plasmonics into microsystems and lab-on-chip over the past five years. Recent applications of plasmonic biosensors in microsystems and sensor performance are analyzed. The final analysis focuses on the integration of microfluidics and lab-on-a-chip with quantum plasmonics technology prospecting it as a promising solution for chemical and biological sensing. Here it is underlined how the research in the field of quantum plasmonic sensing for biological applications has flourished over the past decade with the aim to overcome the limits given by quantum fluctuations and noise. The significant advances in nanophotonics, plasmonics and microsystems used to create increasingly effective biosensors would continue to benefit this field if harnessed properly.
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Affiliation(s)
- Giuseppina Simone
- Chemical Engineering, University of Naples 'Federico II', Naples, Italy
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9
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Wang Z, Zhang W, Liu X, Li M, Lang X, Singh R, Marques C, Zhang B, Kumar S. Novel Optical Fiber-Based Structures for Plasmonics Sensors. BIOSENSORS 2022; 12:1016. [PMID: 36421134 PMCID: PMC9688463 DOI: 10.3390/bios12111016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/04/2022] [Accepted: 11/07/2022] [Indexed: 05/24/2023]
Abstract
Optical fiber sensors based on surface plasma technology have many unique advantages in specific applications such as extreme environmental monitoring, physical parameter determination, and biomedical indicators testing. In recent decades, various kinds of fiber probes with special structures were developed according to special processing such as tapering, splicing, etching, fiber balls, grating etc. In this paper, the fabrication technology, characteristics, development status and application scenarios of different special optical fiber structures are briefly reviewed, including common processing equipment. Furthermore, many special novel optical fiber structures reported in recent years are summarized, which have been used in various kinds of plasmonic sensing work. Then, the fiber-plasmonic sensors for practical applications are also introduced and examined in detail. The main aim of this review is to provide guidance and inspiration for researchers to design and fabricate special optical fiber structures, thus facilitating their further research.
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Affiliation(s)
- Zhi Wang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
| | - Wen Zhang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
| | - Xuecheng Liu
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
| | - Muyang Li
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
| | - Xianzheng Lang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
| | - Ragini Singh
- College of Agronomy, Liaocheng University, Liaocheng 252059, China
| | - Carlos Marques
- Physics Department & I3N, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Bingyuan Zhang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
| | - Santosh Kumar
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
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10
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Cennamo N, Arcadio F, Seggio M, Maniglio D, Zeni L, Bossi AM. Spoon-shaped polymer waveguides to excite multiple plasmonic phenomena: A multisensor based on antibody and molecularly imprinted nanoparticles to detect albumin concentrations over eight orders of magnitude. Biosens Bioelectron 2022; 217:114707. [PMID: 36116224 DOI: 10.1016/j.bios.2022.114707] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 08/13/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022]
Abstract
A polymeric multimode waveguide, characterized by a pioneering spoon-shaped geometry, was herein proposed for the first time to devise Surface Plasmon Resonance (SPR) biochemical sensors. The plasmon excitation was enabled by layering a gold nanofilm of ∼60 nm onto the spoon-waveguide. As a consequence of the waveguide's extra-ordinary geometry, two distinct sensing regions were identified: a planar one, located on the spoon's neck, and a concave one on the bowl, with angled surfaces. The bulk sensitivity (Sn) is correlated both to the way the light was launched in/collected from the sensor (parallel or orthogonal to the main axis of the waveguide) and to the sensing area interrogated (planar-neck or angled-bowl), indicating that the sensor's performance can be conveniently tuned, depending on the chosen measuring configuration. The SPR sensor's characterization showed Sn equal to 750 nm/RIU for the neck and to 950 nm/RIU for the bowl. To further inspect the peculiar sensing-features and assess the application niches, the spoon-shaped waveguide was functionalized with two kinds of receptors, both specific for human serum albumin (HSA): an antibody on the bowl region (high Sn); molecularly imprinted nanoparticles (nanoMIPs) on the neck region (low Sn). The experimental results showed a limit of detection (LOD) for the immune-sensor of 280 pM and an LOD for the nanoMIP-sensor of 4.16 fM. The overall response of the HSA multi-sensor encompassed eight orders of magnitude, suggesting that the spoon-shaped waveguide's provides multi-scale detection and holds potential to devise multi-analyte sensing platforms.
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Affiliation(s)
- Nunzio Cennamo
- University of Campania Luigi Vanvitelli, Department of Engineering, Via Roma 29, 81031, Aversa, Italy
| | - Francesco Arcadio
- University of Campania Luigi Vanvitelli, Department of Engineering, Via Roma 29, 81031, Aversa, Italy
| | - Mimimorena Seggio
- University of Verona, Department of Biotechnology, Strada Le Grazie 15, 37134, Verona, Italy
| | - Devid Maniglio
- University of Trento, Department of Industrial Engineering, Via Sommarive 9, 38123, Trento, Italy
| | - Luigi Zeni
- University of Campania Luigi Vanvitelli, Department of Engineering, Via Roma 29, 81031, Aversa, Italy
| | - Alessandra Maria Bossi
- University of Verona, Department of Biotechnology, Strada Le Grazie 15, 37134, Verona, Italy.
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11
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Zhang W, Wang Z, Singh R, Wang Y, Xie Y, Su X, Gao F, Li G, Swarnakar S, Min R, Zhang B, Kumar S. Performance analysis of an SMF-/MMF-based single/double/quadruple tapered optical fiber structure. APPLIED OPTICS 2022; 61:2140-2146. [PMID: 35333240 DOI: 10.1364/ao.453486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 02/12/2022] [Indexed: 06/14/2023]
Abstract
This paper primarily discusses the structural performance analysis of a single/double/quadruple tapered optical fiber (TOF) structure based on single-mode fiber (SMF) and multi-mode fiber (MMF). Furthermore, the TOF's performance, including its diameter distribution, transmitted intensity, and reproducibility, is also evaluated. According to the experimental results, it can be concluded that the quadruple TOF structure based on SMF has a higher density of evanescent waves (EWs) on the surface of the tapered area, which is essential for the fabrication of high-sensitivity optical fiber sensors. The structure proposed in this article is feasible, and it can be used for optical fiber sensing while offering significant practical and promising applications as well.
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Vidal M, Soares MS, Loyez M, Costa FM, Caucheteur C, Marques C, Pereira SO, Leitão C. Relevance of the Spectral Analysis Method of Tilted Fiber Bragg Grating-Based Biosensors: A Case-Study for Heart Failure Monitoring. SENSORS (BASEL, SWITZERLAND) 2022; 22:2141. [PMID: 35336312 PMCID: PMC8954114 DOI: 10.3390/s22062141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/23/2022] [Accepted: 03/08/2022] [Indexed: 01/16/2023]
Abstract
Optical fiber technology has rapidly progressed over the years, providing valuable benefits for biosensing purposes such as sensor miniaturization and the possibility for remote and real-time monitoring. In particular, tilted fiber Bragg gratings (TFBGs) are extremely sensitive to refractive index variations taking place on their surface. The present work comprises a case-study on the impact of different methods of analysis applied to decode spectral variations of bare and plasmonic TFBGs during the detection of N-terminal B-type natriuretic peptide (NT-proBNP), a heart failure biomarker, namely by following the most sensitive mode, peaks of the spectral envelopes, and the envelopes' crossing point and area. Tracking the lower envelope resulted in the lowest limits of detection (LOD) for bare and plasmonic TFBGs, namely, 0.75 ng/mL and 0.19 ng/mL, respectively. This work demonstrates the importance of the analysis method on the outcome results, which is crucial to attain the most reliable and sensitive method with lower LOD sensors. Furthermore, it makes the scientific community aware to take careful attention when comparing the performance of different biosensors in which different analysis methods were used.
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Affiliation(s)
- Miguel Vidal
- Physics Department & I3N, University of Aveiro, 3810-193 Aveiro, Portugal; (M.V.); (M.S.S.); (F.M.C.); (C.M.); (S.O.P.)
| | - Maria Simone Soares
- Physics Department & I3N, University of Aveiro, 3810-193 Aveiro, Portugal; (M.V.); (M.S.S.); (F.M.C.); (C.M.); (S.O.P.)
| | - Médéric Loyez
- Electromagnetism and Telecommunication Department, University of Mons, 31 Bld Dolez, 7000 Mons, Belgium; (M.L.); (C.C.)
| | - Florinda M. Costa
- Physics Department & I3N, University of Aveiro, 3810-193 Aveiro, Portugal; (M.V.); (M.S.S.); (F.M.C.); (C.M.); (S.O.P.)
| | - Christophe Caucheteur
- Electromagnetism and Telecommunication Department, University of Mons, 31 Bld Dolez, 7000 Mons, Belgium; (M.L.); (C.C.)
| | - Carlos Marques
- Physics Department & I3N, University of Aveiro, 3810-193 Aveiro, Portugal; (M.V.); (M.S.S.); (F.M.C.); (C.M.); (S.O.P.)
| | - Sónia O. Pereira
- Physics Department & I3N, University of Aveiro, 3810-193 Aveiro, Portugal; (M.V.); (M.S.S.); (F.M.C.); (C.M.); (S.O.P.)
| | - Cátia Leitão
- Physics Department & I3N, University of Aveiro, 3810-193 Aveiro, Portugal; (M.V.); (M.S.S.); (F.M.C.); (C.M.); (S.O.P.)
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Liyanage T, Alharbi B, Quan L, Esquela-Kerscher A, Slaughter G. Plasmonic-Based Biosensor for the Early Diagnosis of Prostate Cancer. ACS OMEGA 2022; 7:2411-2418. [PMID: 35071928 PMCID: PMC8771705 DOI: 10.1021/acsomega.1c06479] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
A tapered optical fiber (TOF) plasmonic biosensor was fabricated and used for the sensitive detection of a panel of microRNAs (miRNAs) in human serum obtained from noncancer and prostate cancer (PCa) patients. Oncogenic and tumor suppressor miRNAs let-7a, let-7c, miR-200b, miR-141, and miR-21 were tested as predictive cancer biomarkers since multianalyte detection minimizes false-positive and false-negative rates and establishes a strong foundation for early PCa diagnosis. The biosensing platform integrates metallic gold triangular nanoprisms (AuTNPs) laminated on the TOF to excite surface plasmon waves in the supporting metallic layer and enhance the evanescent mode of the fiber surface. This sensitive TOF plasmonic biosensor as a point-of-care (POC) cancer diagnostic tool enabled the detection of the panel of miRNAs in seven patient serums without any RNA extraction or sample amplification. The TOF plasmonic biosensor could detect miRNAs in human serum with a limit of detection between 179 and 580 aM and excellent selectivity. Statistical studies were obtained to differentiate cancerous from noncancerous samples with a p-value <0.0001. This high-throughput TOF plasmonic biosensor has the potential to expand and advance POC diagnostics for the early diagnosis of cancer.
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Affiliation(s)
- Thakshila Liyanage
- Center
for Bioelectronics, Bioelectronics Laboratory, Department of Electrical
and Computer Engineering, Old Dominion University, Norfolk, Virginia 23508, United States
| | - Bayan Alharbi
- Center
for Bioelectronics, Bioelectronics Laboratory, Department of Electrical
and Computer Engineering, Old Dominion University, Norfolk, Virginia 23508, United States
| | - Linh Quan
- Leroy
T. Canoles Jr. Cancer Research Center, Department of Microbiology
and Molecular Cell Biology, Eastern Virginia
Medical School, Norfolk, Virginia 23507, United States
| | - Aurora Esquela-Kerscher
- Leroy
T. Canoles Jr. Cancer Research Center, Department of Microbiology
and Molecular Cell Biology, Eastern Virginia
Medical School, Norfolk, Virginia 23507, United States
| | - Gymama Slaughter
- Center
for Bioelectronics, Bioelectronics Laboratory, Department of Electrical
and Computer Engineering, Old Dominion University, Norfolk, Virginia 23508, United States
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Abstract
Optofluidics represents the interaction of light and fluids on a chip that integrates microfluidics and optics, which provides a promising optical platform for manipulating and analyzing fluid samples. Recent years have witnessed a substantial growth in optofluidic devices, including the integration of optical and fluidic control units, the incorporation of diverse photonic nanostructures, and new applications. All these advancements have enabled the implementation of optofluidics with improved performance. In this review, the recent advances of fabrication techniques and cutting-edge applications of optofluidic devices are presented, with a special focus on the developments of imaging and sensing. Specifically, the optofluidic based imaging techniques and applications are summarized, including the high-throughput cytometry, biochemical analysis, and optofluidic nanoparticle manipulation. The optofluidic sensing section is categorized according to the modulation approaches and the transduction mechanisms, represented by absorption, reflection/refraction, scattering, and plasmonics. Perspectives on future developments and promising avenues in the fields of optofluidics are also provided.
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