1
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Ni R, Ge K, Luo Y, Zhu T, Hu Z, Li M, Tao P, Chi J, Li G, Yuan H, Pang Q, Gao W, Zhang P, Zhu Y. Highly sensitive microfluidic sensor using integrated optical fiber and real-time single-cell Raman spectroscopy for diagnosis of pancreatic cancer. Biosens Bioelectron 2024; 264:116616. [PMID: 39137518 DOI: 10.1016/j.bios.2024.116616] [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: 04/21/2024] [Revised: 07/26/2024] [Accepted: 07/29/2024] [Indexed: 08/15/2024]
Abstract
Pancreatic cancer is notoriously lethal due to its late diagnosis and poor patient response to treatments, posing a significant clinical challenge. This study introduced a novel approach that combines a single-cell capturing platform, tumor-targeted silver (Ag) nanoprobes, and precisely docking tapered fiber integrated with Raman spectroscopy. This approach focuses on early detection and progression monitoring of pancreatic cancer. Utilizing tumor-targeted Ag nanoparticles and tapered multimode fibers enhances Raman signals, minimizes light loss, and reduces background noise. This advanced Raman system allows for detailed molecular spectroscopic examination of individual cells, offering more practical information and enabling earlier detection and accurate staging of pancreatic cancer compared to conventional multicellular Raman spectroscopy. Transcriptomic analysis using high-throughput gene screening and transcriptomic databases confirmed the ability and accuracy of this method to identify molecular changes in normal, early, and metastatic pancreatic cancer cells. Key findings revealed that cell adhesion, migration, and the extracellular matrix are closely related to single-cell Raman spectroscopy (SCRS) results, highlighting components such as collagen, phospholipids, and carotene. Therefore, the SCRS approach provides a comprehensive view of the molecular composition, biological function, and material changes in cells, offering a novel, accurate, reliable, rapid, and efficient method for diagnosing and monitoring pancreatic cancer.
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Affiliation(s)
- Renhao Ni
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Kaixin Ge
- Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province, Ningbo University, Ningbo, 315211, China; Engineering Research Center for Advanced Infrared Photoelectric Materials and Devices of Zhejiang Province, Ningbo University, Ningbo, 315211, China
| | - Yang Luo
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Tong Zhu
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Zeming Hu
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Min Li
- College of Information Science and Engineering, Ningbo University, Ningbo, 315211, China
| | - Pan Tao
- Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province, Ningbo University, Ningbo, 315211, China; Engineering Research Center for Advanced Infrared Photoelectric Materials and Devices of Zhejiang Province, Ningbo University, Ningbo, 315211, China
| | - Jinyi Chi
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Guanron Li
- Health Science Center, Ningbo University, Ningbo, 315211, China; The First Affiliated Hospital of Ningbo University, Ningbo, 315020, China
| | - Haojun Yuan
- College of Information Science and Engineering, Ningbo University, Ningbo, 315211, China
| | - Qian Pang
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Wanlei Gao
- College of Information Science and Engineering, Ningbo University, Ningbo, 315211, China.
| | - Peiqing Zhang
- Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province, Ningbo University, Ningbo, 315211, China; Engineering Research Center for Advanced Infrared Photoelectric Materials and Devices of Zhejiang Province, Ningbo University, Ningbo, 315211, China.
| | - Yabin Zhu
- Health Science Center, Ningbo University, Ningbo, 315211, China.
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2
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Jin X, Chen M, Zheng J, Xu E, Jiang C, Zhou K, Sun B, Zhang Z. Magnetic tuning with minimal thermal drift in high-Q microspheres coated with magnetorheological polydimethylsiloxane. OPTICS LETTERS 2024; 49:5071-5074. [PMID: 39270230 DOI: 10.1364/ol.534536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Accepted: 08/15/2024] [Indexed: 09/15/2024]
Abstract
Integration of whispering-gallery-mode (WGM) resonators with high-quality factors (Q) into advanced timing, oscillator, and sensing systems demands a platform that enables precise resonance frequency modulation. This study investigates the tuning characteristics of magnetorheological polydimethylsiloxane (MR-PDMS) coated microspheres (µ-spheres) employed as magnetic microresonators, achieving a Q value of 107 at the 1550 nm wavelength. Magnetic WGM resonators not only endow the device with magnetic adjustability but also markedly improve thermal resistance. Experimental findings reveal that the magnetic µ-sphere demonstrates a sensitivity of -32.53 MHz/mT, outperforming conventional magnetic WGM resonators. Furthermore, analysis of the temperature dependence shows a reduction in fluctuation to -2.85 MHz/K, thereby greatly enhancing the sensor's practical detection limit.
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3
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Bissen A, Yunussova N, Myrkhiyeva Z, Salken A, Tosi D, Bekmurzayeva A. Unpacking the packaged optical fiber bio-sensors: understanding the obstacle for biomedical application. Front Bioeng Biotechnol 2024; 12:1401613. [PMID: 39144482 PMCID: PMC11322460 DOI: 10.3389/fbioe.2024.1401613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 07/18/2024] [Indexed: 08/16/2024] Open
Abstract
A biosensor is a promising alternative tool for the detection of clinically relevant analytes. Optical fiber as a transducer element in biosensors offers low cost, biocompatibility, and lack of electromagnetic interference. Moreover, due to the miniature size of optical fibers, they have the potential to be used in microfluidic chips and in vivo applications. The number of optical fiber biosensors are extensively growing: they have been developed to detect different analytes ranging from small molecules to whole cells. Yet the widespread applications of optical fiber biosensor have been hindered; one of the reasons is the lack of suitable packaging for their real-life application. In order to translate optical fiber biosensors into clinical practice, a proper embedding of biosensors into medical devices or portable chips is often required. A proper packaging approach is frequently as challenging as the sensor architecture itself. Therefore, this review aims to give an unpack different aspects of the integration of optical fiber biosensors into packaging platforms to bring them closer to actual clinical use. Particularly, the paper discusses how optical fiber sensors are integrated into flow cells, organized into microfluidic chips, inserted into catheters, or otherwise encased in medical devices to meet requirements of the prospective applications.
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Affiliation(s)
- Aidana Bissen
- National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan
| | - Nigara Yunussova
- National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- School of Sciences and Humanities, Nazarbayev University, Astana, Kazakhstan
| | - Zhuldyz Myrkhiyeva
- National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- School of Sciences and Humanities, Nazarbayev University, Astana, Kazakhstan
| | | | - Daniele Tosi
- National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan
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4
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Anbuselvam B, Gunasekaran BM, Srinivasan S, Ezhilan M, Rajagopal V, Nesakumar N. Wearable biosensors in cardiovascular disease. Clin Chim Acta 2024; 561:119766. [PMID: 38857672 DOI: 10.1016/j.cca.2024.119766] [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: 05/23/2024] [Revised: 06/05/2024] [Accepted: 06/05/2024] [Indexed: 06/12/2024]
Abstract
This review provides a comprehensive overview of the latest advancements in wearable biosensors, emphasizing their applications in cardiovascular disease monitoring. Initially, the key sensing signals and biomarkers crucial for cardiovascular health, such as electrocardiogram, phonocardiography, pulse wave velocity, blood pressure, and specific biomarkers, are highlighted. Following this, advanced sensing techniques for cardiovascular disease monitoring are examined, including wearable electrophysiology devices, optical fibers, electrochemical sensors, and implantable cardiac devices. The review also delves into hydrogel-based wearable electrochemical biosensors, which detect biomarkers in sweat, interstitial fluids, saliva, and tears. Further attention is given to flexible electronics-based biosensors, including resistive, capacitive, and piezoelectric force sensors, as well as resistive and pyroelectric temperature sensors, flexible biochemical sensors, and sensor arrays. Moreover, the discussion extends to polymer-based wearable sensors, focusing on innovations in contact lens, textile-type, patch-type, and tattoo-type sensors. Finally, the review addresses the challenges associated with recent wearable biosensing technologies and explores future perspectives, highlighting potential groundbreaking avenues for transforming wearable sensing devices into advanced diagnostic tools with multifunctional capabilities for cardiovascular disease monitoring and other healthcare applications.
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Affiliation(s)
- Bhavadharani Anbuselvam
- School of Chemical & Biotechnology (SCBT), SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India
| | - Balu Mahendran Gunasekaran
- School of Chemical & Biotechnology (SCBT), SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India; Center for Nanotechnology & Advanced Biomaterials (CENTAB), SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India
| | - Soorya Srinivasan
- Department of Mechanical Engineering, IIT Madras, Chennai 600036, Tamil Nadu, India
| | - Madeshwari Ezhilan
- Department of Biomedical Engineering, Vel Tech Rangarajan Dr. Sagunthala R & D Institute of Science and Technology, Vel Nagar, Avadi, Chennai 600062, Tamil Nadu, India.
| | - Venkatachalam Rajagopal
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, STEM College, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Noel Nesakumar
- School of Chemical & Biotechnology (SCBT), SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India; Center for Nanotechnology & Advanced Biomaterials (CENTAB), SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
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5
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Zheng H, Tai L, Xu C, Wang W, Ma Q, Sun W. Microfluidic-based cardiovascular systems for advanced study of atherosclerosis. J Mater Chem B 2024. [PMID: 38948949 DOI: 10.1039/d4tb00756e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Atherosclerosis (AS) is a significant global health concern due to its high morbidity and mortality rates. Extensive efforts have been made to replicate the cardiovascular system and explore the pathogenesis, diagnosis, and treatment of AS. Microfluidics has emerged as a valuable technology for modeling the cardiovascular system and studying AS. Here a brief review of the advances of microfluidic-based cardiovascular systems for AS research is presented. The critical pathogenetic mechanisms of AS investigated by microfluidic-based cardiovascular systems are categorized and reviewed, with a detailed summary of accurate diagnostic methods for detecting biomarkers using microfluidics represented. Furthermore, the review covers the evaluation and screening of AS drugs assisted by microfluidic systems, along with the fabrication of novel drug delivery carriers. Finally, the challenges and future prospects for advancing microfluidic-based cardiovascular systems in AS research are discussed and proposed, particularly regarding new opportunities in multi-disciplinary fundamental research and therapeutic applications for a broader range of disease treatments.
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Affiliation(s)
- Huiyuan Zheng
- School of Pharmacy, Qingdao University, Qingdao 266071, China.
- School of Health and Life Sciences, University of Health and Rehabilitation Sciences, Qingdao 266113, China.
| | - Lei Tai
- Pharmacy Department, Shandong Qingdao Hospital of Integrated Traditional and Western Medicine, Qingdao 266002, China
| | - Chengbin Xu
- Pharmacy Department, Shandong Qingdao Hospital of Integrated Traditional and Western Medicine, Qingdao 266002, China
| | - Weijiang Wang
- School of Pharmacy, Qingdao University, Qingdao 266071, China.
| | - Qingming Ma
- School of Pharmacy, Qingdao University, Qingdao 266071, China.
| | - Wentao Sun
- School of Health and Life Sciences, University of Health and Rehabilitation Sciences, Qingdao 266113, China.
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6
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Hu J, He P, Zhao F, Lin W, Xue C, Chen J, Yu Z, Ran Y, Meng Y, Hong X, Shum PP, Shao L. Magnetic microspheres enhanced peanut structure cascaded lasso shaped fiber laser biosensor for cancer marker-CEACAM5 detection in serum. Talanta 2024; 271:125625. [PMID: 38244308 DOI: 10.1016/j.talanta.2024.125625] [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: 10/06/2023] [Revised: 12/30/2023] [Accepted: 01/03/2024] [Indexed: 01/22/2024]
Abstract
The detection of trace cancer markers in body fluids such as blood/serum is crucial for cancer diseases screening and treatment, which requires high sensitivity and specificity of biosensors. In this study, a peanut structure cascaded lasso (PSCL) shaped fiber sensing probe based on fiber laser demodulation method was proposed to specifically detect the carcinoembryonic antigen related cell adhesion molecules 5 (CEACAM5) protein in serum. Thanks for the narrow linewidth and high signal-to-noise ratio (SNR) of the laser spectrum, it is easier to distinguish small spectral changes than interference spectrum. Adding the antibody modified magnetic microspheres (MMS) to form the sandwich structure of "antibody-antigen-antibody-MMS", and amplified the response caused by biomolecular binding. The limit of detection (LOD) for CEACAM5 in buffer could reach 0.11 ng/mL. Considering the common threshold of 5 ng/mL for CEA during medical screening and the cut off limit of 2.5 ng/mL for some kits, the LOD of proposed biosensor meets the actual needs. Human serum samples from a hospital were used to validate the real sensing capability of proposed biosensor. The deviation between the measured value in various serum samples and the clinical value ranged from 1.9 to 9.8 %. This sensing scheme holds great potential to serve as a point of care testing (POCT) device and extend to more biosensing applications.
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Affiliation(s)
- Jie Hu
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Panpan He
- Medcaptain Medical Technology Co., Ltd., Shenzhen, 518055, China.
| | - Fang Zhao
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Weihao Lin
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Chenlong Xue
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Jinna Chen
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Zhiguang Yu
- Medcaptain Medical Technology Co., Ltd., Shenzhen, 518055, China.
| | - Yang Ran
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou, 510632, China.
| | - Yue Meng
- Department of Clinical Laboratory, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 511436, China.
| | - Xin Hong
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China; Key University Laboratory of Metabolism and Health of Guangdong, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China.
| | - Perry Ping Shum
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Liyang Shao
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
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7
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Nejati-Koshki K, Fathi F, Arabzadeh A, Mohammadzadeh A. Biomarkers and optical based biosensors in cardiac disease detection: early and accurate diagnosis. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:5441-5458. [PMID: 37814547 DOI: 10.1039/d3ay01414b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Rapid and precise detection methods for the early-stage detection of cardiovascular irregularities are crucial to stopping and reducing their development. Cardiovascular diseases (CVDs) are the leading cause of death in the world. Hence, cardiac-related biomarkers are essential for monitoring and managing of process. The necessity for biomarker detection has significantly widened the field of biosensor development. Bio-sensing methods offer rapid detection, low cost, sensitivity, portability, and selectivity in the development of devices for biomarker detection. For the prediction of cardiovascular diseases, some biomarkers can be used, like C-reactive protein (CRP), troponin I or T, creatine kinase (CK-MB), B-type natriuretic peptide (BNP), myoglobin (Mb), suppression of tumorigenicity 2 protein (ST2) and galectin-3 (Gal3). In this review, recent research studies were covered for gaining insight into utilizing optical-based biosensors, including surface plasmon resonance (SPR), photonic crystals (PCs), fluorescence-based techniques, fiber optics, and also Raman spectroscopy biosensors for the ultrasensitive detection of cardiac biomarkers. The main goal of this review is to focus on the improvement of optical biosensors in the future for the diagnosis of heart diseases and to discuss how to enhance their properties for use in medicine. Some main data from each study reviewed are emphasized, including the CVD biomarkers and the response range of the optical-based devices and biosensors.
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Affiliation(s)
- Kazem Nejati-Koshki
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Farzaneh Fathi
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - AmirAhmad Arabzadeh
- Department of Surgery, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
| | - Alireza Mohammadzadeh
- Department of Surgery, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
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8
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Li J, Liu Y, Liu D, Xu T, Zhang C, Li J, Wang ZA, Du Y. In Silico Selection and Validation of High-Affinity ssDNA Aptamers Targeting Paromomycin. Anal Chem 2023. [PMID: 37384819 DOI: 10.1021/acs.analchem.3c01575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Glycans are promising for disease diagnosis since glycan biosynthesis is significantly affected by disease states, and glycosylation changes are probably more pronounced than protein expression during the transformation to the diseased condition. Glycan-specific aptamers can be developed for challenging applications such as cancer targeting; however, the high flexibility of glycosidic bonds and scarcity of studies on glycan-aptamer binding mechanisms increased the difficulty of screening. In this work, the model of interactions between glycans and ssDNA aptamers synthesized based on the sequence of rRNA genes was developed. Our simulation-based approach revealed that paromomycin as a representative example of glycans is preferred to bind base-restricted stem structures of aptamers because they are more critical in stabilizing the flexible structures of glycans. Combined experiments and simulations have identified two optimal mutant aptamers. Our work would provide a potential strategy that the glycan-binding rRNA genes could act as the initial aptamer pools to accelerate aptamer screening. In addition, this in silico workflow would be potentially applied in the more extensive in vitro development and application of RNA-templated ssDNA aptamers targeting glycans.
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Affiliation(s)
- Jiaqing Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, 100190 Beijing, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, No.19A Yuquan Road, Shijingshan District, 100049 Beijing, China
| | - Yangyang Liu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Dongdong Liu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, 100190 Beijing, China
| | - Tong Xu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, 100190 Beijing, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, No.19A Yuquan Road, Shijingshan District, 100049 Beijing, China
| | - Chen Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, 100190 Beijing, China
| | - Jianjun Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, 100190 Beijing, China
| | - Zhuo A Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, 100190 Beijing, China
| | - Yuguang Du
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, 100190 Beijing, China
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9
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Hu J, Song E, Liu Y, Yang Q, Sun J, Chen J, Meng Y, Jia Y, Yu Z, Ran Y, Shao L, Shum PP. Fiber Laser-Based Lasso-Shaped Biosensor for High Precision Detection of Cancer Biomarker-CEACAM5 in Serum. BIOSENSORS 2023; 13:674. [PMID: 37504073 PMCID: PMC10377356 DOI: 10.3390/bios13070674] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/09/2023] [Accepted: 06/21/2023] [Indexed: 07/29/2023]
Abstract
Detection of trace tumor markers in blood/serum is essential for the early screening and prognosis of cancer diseases, which requires high sensitivity and specificity of the assays and biosensors. A variety of label-free optical fiber-based biosensors has been developed and yielded great opportunities for Point-of-Care Testing (POCT) of cancer biomarkers. The fiber biosensor, however, suffers from a compromise between the responsivity and stability of the sensing signal, which would deteriorate the sensing performance. In addition, the sophistication of sensor preparation hinders the reproduction and scale-up fabrication. To address these issues, in this study, a straightforward lasso-shaped fiber laser biosensor was proposed for the specific determination of carcinoembryonic antigen (CEA)-related cell adhesion molecules 5 (CEACAM5) protein in serum. Due to the ultra-narrow linewidth of the laser, a very small variation of lasing signal caused by biomolecular bonding can be clearly distinguished via high-resolution spectral analysis. The limit of detection (LOD) of the proposed biosensor could reach 9.6 ng/mL according to the buffer test. The sensing capability was further validated by a human serum-based cancer diagnosis trial, enabling great potential for clinical use. The high reproduction of fabrication allowed the mass production of the sensor and extended its utility to a broader biosensing field.
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Affiliation(s)
- Jie Hu
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Enlai Song
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Yuhui Liu
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiaochu Yang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Junhui Sun
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jinna Chen
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yue Meng
- Department of Clinical Laboratory, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 511436, China
| | - Yanwei Jia
- State-Key Laboratory of Analog and Mixed-Signal VLSI, Institute of Microelectronics, Faculty of Science and Technology-ECE, Faculty of Health Sciences, MoE Frontiers Science Center for Precision Oncology, University of Macau, Macau 999078, China
| | - Zhiguang Yu
- Medcaptain Medical Technology Co., Ltd., Shenzhen 518055, China
| | - Yang Ran
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Liyang Shao
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Perry Ping Shum
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
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10
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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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11
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Hua P, Ding Z, Liu K, Guo H, Pan M, Zhang T, Li S, Jiang J, Liu T. Distributed optical fiber biosensor based on optical frequency domain reflectometry. Biosens Bioelectron 2023; 228:115184. [PMID: 36878065 DOI: 10.1016/j.bios.2023.115184] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 02/09/2023] [Accepted: 02/25/2023] [Indexed: 03/05/2023]
Abstract
In situ acquisition of spatial distribution of biochemical substances is important in cell analysis, cancer detection and other fields. Optical fiber biosensors can achieve label-free, fast and accurate measurements. However, current optical fiber biosensors only acquire single-point of biochemical substance content. In this paper, we present a distributed optical fiber biosensor based on tapered fiber in optical frequency domain reflectometry (OFDR) for the first time. To enhance evanescent field at a relative long sensing range, we fabricate a tapered fiber with a taper waist diameter of 6 μm and a total stretching length of 140 mm. Then the human IgG layer is coated on the entire tapered region by polydopamine (PDA) -assisted immobilization as the sensing element to achieve to sense anti-human IgG. We measure shifts of the local Rayleigh backscattering spectra (RBS) caused by the refractive index (RI) change of an external medium surrounding a tapered fiber after immunoaffinity interactions by using OFDR. The measurable concentration of anti-human IgG and RBS shift has an excellent linearity in a range from 0 ng/ml to 14 ng/ml with an effective sensing range of 50 mm. The concentration measurement limit of the proposed distributed biosensor is 2 ng/ml for anti-human IgG. Distributed biosensing based on OFDR can locate a concentration change of anti-human IgG with an ultra-high sensing spatial resolution of 680 μm. The proposed sensor has a potential to realize a micron-level localization of biochemical substances such as cancer cells, which will open a door to transform single-point biosensor to distributed biosensor.
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Affiliation(s)
- Peidong Hua
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing of Tianjin University, Tianjin, 300072, China; Key Laboratory of Opto-electronics Information Technology (Tianjin University), Ministry of Education, Tianjin, 300072, China
| | - Zhenyang Ding
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing of Tianjin University, Tianjin, 300072, China; Key Laboratory of Opto-electronics Information Technology (Tianjin University), Ministry of Education, Tianjin, 300072, China.
| | - Kun Liu
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing of Tianjin University, Tianjin, 300072, China; Key Laboratory of Opto-electronics Information Technology (Tianjin University), Ministry of Education, Tianjin, 300072, China
| | - Haohan Guo
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing of Tianjin University, Tianjin, 300072, China; Key Laboratory of Opto-electronics Information Technology (Tianjin University), Ministry of Education, Tianjin, 300072, China
| | - Ming Pan
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing of Tianjin University, Tianjin, 300072, China; Key Laboratory of Opto-electronics Information Technology (Tianjin University), Ministry of Education, Tianjin, 300072, China
| | - Teng Zhang
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing of Tianjin University, Tianjin, 300072, China; Key Laboratory of Opto-electronics Information Technology (Tianjin University), Ministry of Education, Tianjin, 300072, China
| | - Sheng Li
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing of Tianjin University, Tianjin, 300072, China; Key Laboratory of Opto-electronics Information Technology (Tianjin University), Ministry of Education, Tianjin, 300072, China
| | - Junfeng Jiang
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing of Tianjin University, Tianjin, 300072, China; Key Laboratory of Opto-electronics Information Technology (Tianjin University), Ministry of Education, Tianjin, 300072, China
| | - Tiegen Liu
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing of Tianjin University, Tianjin, 300072, China; Key Laboratory of Opto-electronics Information Technology (Tianjin University), Ministry of Education, Tianjin, 300072, China
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12
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Jing J, Liu K, Jiang J, Xu T, Xiao L, Zhan X, Liu T. Optimally Configured Optical Fiber Near-Field Enhanced Plasmonic Resonance Immunoprobe for the Detection of Alpha-Fetoprotein. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207437. [PMID: 36995031 DOI: 10.1002/advs.202207437] [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: 12/15/2022] [Revised: 02/20/2023] [Indexed: 05/27/2023]
Abstract
The detection of trace biomarkers is an important supplementary approach for early screening and diagnoses of tumors. An optical fiber near-field enhanced plasmonic resonance immunoprobe is developed for the detection of the hepatocellular carcinoma biomarker, i.e., the alpha-fetoprotein. Generic principles based on dispersion models and finite element analysis (FEA) models are developed to realize the optimized configuration of spectral characteristics of the immunoprobe. Dispersion models provide theoretical guidance for the design of the multilayer sensing structure from the perspective of the ray optics theory. FEA models provide theoretical guidance for the selection of coating materials from the perspective of the self-defined dielectric constant ratio, i.e., the ratio of the real part to the imaginary part. The optimized configuration of the antibody coupling further improves the biosensing performance of the immunoprobe. The limit of detection (LOD) can reach down to 0.01 ng mL-1 , which is one order of magnitude lower than those relevant reported works. Such a low LOD can more effectively avoid the accuracy degradation of detection results due to measurement errors. Human serum samples have also been detected, with the good precision achieved. This work shows promising prospects in applications of label-free, low-cost, rapid, and convenient early screening of tumors.
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Affiliation(s)
- Jianying Jing
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
| | - Kun Liu
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
| | - Junfeng Jiang
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
| | - Tianhua Xu
- School of Engineering, University of Warwick, Coventry, CV4 7AL, UK
| | - Lu Xiao
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
| | - Xiaohan Zhan
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
| | - Tiegen Liu
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
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13
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Liu B, Liu S, Zhang Q, Hong G, Liao C, Xu X, Liu L, Qu J, Wang Y. Microbubble-probe WGM resonators enable displacement measurements with high spatial resolution. OPTICS LETTERS 2023; 48:1922-1925. [PMID: 37221800 DOI: 10.1364/ol.483285] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/05/2023] [Indexed: 05/25/2023]
Abstract
A microbubble-probe whispering gallery mode resonator with high displacement resolution and spatial resolution for displacement sensing is proposed. The resonator consists of an air bubble and a probe. The probe has a diameter of ∼5 µm that grants micron-level spatial resolution. Fabricated by a CO2 laser machining platform, a universal quality factor of over 106 is achieved. In displacement sensing, the sensor exhibits a displacement resolution of 74.83 pm and an estimated measurement span of 29.44 µm. As the first microbubble probe resonator for displacement measurement, the component shows advantages in performance, and exhibits a potential in sensing with high precision.
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14
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Oliveira DCDB, Costa FHM, da Silva JAF. The Integration of Field Effect Transistors to Microfluidic Devices. MICROMACHINES 2023; 14:791. [PMID: 37421024 DOI: 10.3390/mi14040791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/26/2023] [Accepted: 03/28/2023] [Indexed: 07/09/2023]
Abstract
Devices that integrate field effect transistors into microfluidic channels are becoming increasingly promising in the medical, environmental, and food realms, among other applications. The uniqueness of this type of sensor lies in its ability to reduce the background signals existing in the measurements, which interfere in obtaining good limits of detection for the target analyte. This and other advantages intensify the development of selective new sensors and biosensors with coupling configuration. This review work focused on the main advances in the fabrication and application of field effect transistors integrated into microfluidic devices as a way of identifying the potentialities that exist in these systems when used in chemical and biochemical analyses. The emergence of research on integrated sensors is not a recent study, although more recently the progress of these devices is more accentuated. Among the studies that used integrated sensors with electrical and microfluidic parts, those that investigated protein binding interactions seem to be the ones that expanded the most due, among other things, to the possibility of obtaining several physicochemical parameters involved in protein-protein interactions. Studies in this area have a great possibility of advancing innovations in sensors with electrical and microfluidic interfaces in new designs and applications.
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Affiliation(s)
| | - Fernando Henrique Marques Costa
- Department of Analytical Chemistry, Institute of Chemistry, State University of Campinas (UNICAMP), P.O. Box 6154, Campinas 13083-970, SP, Brazil
| | - José Alberto Fracassi da Silva
- Department of Analytical Chemistry, Institute of Chemistry, State University of Campinas (UNICAMP), P.O. Box 6154, Campinas 13083-970, SP, Brazil
- National Institute of Science and Technology of Bioanalytics, INCTBio, Campinas, SP, Brazil
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15
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Tang L, Yang J, Wang Y, Deng R. Recent Advances in Cardiovascular Disease Biosensors and Monitoring Technologies. ACS Sens 2023; 8:956-973. [PMID: 36892106 DOI: 10.1021/acssensors.2c02311] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Cardiovascular disease (CVD) causes significant mortality and remains the leading cause of death globally. Thus, to reduce mortality, early diagnosis by measurement of cardiac biomarkers and heartbeat signals presents fundamental importance. Traditional CVD examination requires bulky hospital instruments to conduct electrocardiography recording and immunoassay analysis, which are both time-consuming and inconvenient. Recently, development of biosensing technologies for rapid CVD marker screening attracted great attention. Thanks to the advancement in nanotechnology and bioelectronics, novel biosensor platforms are developed to achieve rapid detection, accurate quantification, and continuous monitoring throughout disease progression. A variety of sensing methodologies using chemical, electrochemical, optical, and electromechanical means are explored. This review first discusses the prevalence and common categories of CVD. Then, heartbeat signals and cardiac blood-based biomarkers that are widely employed in clinic, as well as their utilizations for disease prognosis, are summarized. Emerging CVD wearable and implantable biosensors and monitoring bioelectronics, allowing these cardiac markers to be continuously measured are introduced. Finally, comparisons of the pros and cons of these biosensing devices along with perspectives on future CVD biosensor research are presented.
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Affiliation(s)
- Lichao Tang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, 60208, Illinois, United States
| | - Jiyuan Yang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, 47906, Indiana, United States
| | - Yuxi Wang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Ruijie Deng
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center, Sichuan University, Chengdu, 610064, Sichuan, China
- Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
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16
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Guo Z, Zhao X, Zhou Y, Li Y, Liu Z, Luo M, Wu X, Wang Y, Zhang M, Yang X. Label-free detection of cardiac troponin-I with packaged thin-walled microbubble resonators. JOURNAL OF BIOPHOTONICS 2022; 15:e202200151. [PMID: 35762487 DOI: 10.1002/jbio.202200151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/22/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
The measurement of cardiac troponin-I (cTnI) is widely used for diagnosing acute myocardial infarction (AMI) diseases because of its myocardial specificity. Packaged microbubble resonators with thin wall are utilized for label-free and specific detection of cTnI based on whispering gallery mode (WGM). This packaged structure can provide a good protection for the biosensor, improve the anti-interference ability of the sensor and reduce the system noise. The theoretical detection limit of the biosensors for cTnI in phosphate buffer saline (PBS) is 0.4 ag mL-1 (0.02 aM ). Furthermore, we demonstrated that the biosensors can be used to detect cTnI molecules in simulated serum and the theoretical detection limit is also 0.4 ag mL-1 (0.02 aM ). These results are much far below the clinical cut-off value and show a huge application potential for the detection of cardiac biomarkers of AMI.
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Affiliation(s)
- Zhihe Guo
- Department of Optical Science and Engineering, Shanghai Engineering Research Center of Ultra Precision Optical Manufacturing, Fudan University, Shanghai, China
| | - Xuyang Zhao
- Department of Optical Science and Engineering, Shanghai Engineering Research Center of Ultra Precision Optical Manufacturing, Fudan University, Shanghai, China
| | - Yi Zhou
- Department of Optical Science and Engineering, Shanghai Engineering Research Center of Ultra Precision Optical Manufacturing, Fudan University, Shanghai, China
| | - Yuxiang Li
- Department of Optical Science and Engineering, Shanghai Engineering Research Center of Ultra Precision Optical Manufacturing, Fudan University, Shanghai, China
| | - Zhiran Liu
- Department of Optical Science and Engineering, Shanghai Engineering Research Center of Ultra Precision Optical Manufacturing, Fudan University, Shanghai, China
| | - Man Luo
- Department of Optical Science and Engineering, Shanghai Engineering Research Center of Ultra Precision Optical Manufacturing, Fudan University, Shanghai, China
| | - Xiang Wu
- Department of Optical Science and Engineering, Shanghai Engineering Research Center of Ultra Precision Optical Manufacturing, Fudan University, Shanghai, China
| | - You Wang
- Key Laboratory of Laser Device Technology, China North Industries Group Corporation Limited, Southwest Institute of Technical Physics, Chengdu, China
| | - Meng Zhang
- Key Laboratory of Laser Device Technology, China North Industries Group Corporation Limited, Southwest Institute of Technical Physics, Chengdu, China
| | - Xi Yang
- Key Laboratory of Laser Device Technology, China North Industries Group Corporation Limited, Southwest Institute of Technical Physics, Chengdu, China
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17
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Niu P, Jiang J, Liu K, Wang S, Xu T, Wang Z, Wang T, Zhang X, Ding Z, Liu Y, Liu T. Prefab Hollow Glass Microsphere-Based Immunosensor with Liquid Crystal Sensitization for Acute Myocardial Infarction Biomarker Detection. BIOSENSORS 2022; 12:439. [PMID: 35884242 PMCID: PMC9312929 DOI: 10.3390/bios12070439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 11/18/2022]
Abstract
Quantitative detection of cardiac troponin biomarkers in blood is an important method for clinical diagnosis of acute myocardial infarction (AMI). In this work, a whispering gallery mode (WGM) microcavity immunosensor based on a prefab hollow glass microsphere (HGMS) with liquid crystal (LC) sensitization was proposed and experimentally demonstrated for label-free cardiac troponin I-C (cTnI-C) complex detection. The proposed fiber-optic immunosensor has a simple structure; the tiny modified HGMS serves as the key sensing element and the microsample reservoir simultaneously. A sensitive LC layer with cTnI-C recognition ability was deposited on the inner wall of the HGMS microcavity. The arrangement of LC molecules is affected by the cTnI-C antigen-antibody binding in the HGMS, and the small change of the surface refractive index caused by the binding can be amplified owing to the birefringence property of LC. Using the annular waveguide of the HGMS, the WGMs were easily excited by the coupling scanning laser with a microfiber, and an all-fiber cTnI-C immunosensor can be achieved by measuring the resonant wavelength shift of the WGM spectrum. Moreover, the dynamic processes of the cTnI-C antigen-antibody binding and unbinding was revealed by monitoring the wavelength shift continuously. The proposed immunosensor with a spherical microcavity can be a cost-effective tool for AMI diagnosis.
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Affiliation(s)
- Panpan Niu
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; (P.N.); (K.L.); (S.W.); (T.X.); (Z.W.); (T.W.); (X.Z.); (Z.D.); (Y.L.); (T.L.)
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Key Laboratory of Micro Opto-Electro Mechanical System Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin 300072, China
| | - Junfeng Jiang
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; (P.N.); (K.L.); (S.W.); (T.X.); (Z.W.); (T.W.); (X.Z.); (Z.D.); (Y.L.); (T.L.)
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Key Laboratory of Micro Opto-Electro Mechanical System Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin 300072, China
| | - Kun Liu
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; (P.N.); (K.L.); (S.W.); (T.X.); (Z.W.); (T.W.); (X.Z.); (Z.D.); (Y.L.); (T.L.)
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Key Laboratory of Micro Opto-Electro Mechanical System Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin 300072, China
| | - Shuang Wang
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; (P.N.); (K.L.); (S.W.); (T.X.); (Z.W.); (T.W.); (X.Z.); (Z.D.); (Y.L.); (T.L.)
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Key Laboratory of Micro Opto-Electro Mechanical System Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin 300072, China
| | - Tianhua Xu
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; (P.N.); (K.L.); (S.W.); (T.X.); (Z.W.); (T.W.); (X.Z.); (Z.D.); (Y.L.); (T.L.)
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Key Laboratory of Micro Opto-Electro Mechanical System Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin 300072, China
| | - Ziyihui Wang
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; (P.N.); (K.L.); (S.W.); (T.X.); (Z.W.); (T.W.); (X.Z.); (Z.D.); (Y.L.); (T.L.)
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Key Laboratory of Micro Opto-Electro Mechanical System Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin 300072, China
| | - Tong Wang
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; (P.N.); (K.L.); (S.W.); (T.X.); (Z.W.); (T.W.); (X.Z.); (Z.D.); (Y.L.); (T.L.)
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Key Laboratory of Micro Opto-Electro Mechanical System Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin 300072, China
| | - Xuezhi Zhang
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; (P.N.); (K.L.); (S.W.); (T.X.); (Z.W.); (T.W.); (X.Z.); (Z.D.); (Y.L.); (T.L.)
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Key Laboratory of Micro Opto-Electro Mechanical System Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin 300072, China
| | - Zhenyang Ding
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; (P.N.); (K.L.); (S.W.); (T.X.); (Z.W.); (T.W.); (X.Z.); (Z.D.); (Y.L.); (T.L.)
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Key Laboratory of Micro Opto-Electro Mechanical System Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin 300072, China
| | - Yize Liu
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; (P.N.); (K.L.); (S.W.); (T.X.); (Z.W.); (T.W.); (X.Z.); (Z.D.); (Y.L.); (T.L.)
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Key Laboratory of Micro Opto-Electro Mechanical System Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin 300072, China
| | - Tiegen Liu
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; (P.N.); (K.L.); (S.W.); (T.X.); (Z.W.); (T.W.); (X.Z.); (Z.D.); (Y.L.); (T.L.)
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Key Laboratory of Micro Opto-Electro Mechanical System Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin 300072, China
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