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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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Li H, Huang T, Yuan H, Lu L, Cao Z, Zhang L, Yang Y, Yu B, Wang H. Combined Ultrasensitive Detection of Renal Cancer Proteins and Cells Using an Optical Microfiber Functionalized with Ti 3C 2 MXene and Gold Nanorod-Nanosensitized Interfaces. Anal Chem 2023; 95:5142-5150. [PMID: 36892255 DOI: 10.1021/acs.analchem.3c00281] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
The ultrasensitive and quantitative detection of renal cancer protein biomarkers present at ultralow concentrations for early-stage cancer diagnosis requires a biosensing probe possessing ultrahigh detection sensitivity and remarkable biosensing selectivity. Here, we report an optical microfiber integrated with Ti3C2-supported gold nanorod hybrid nanointerfaces for implementation in ultrasensitive sensing of the carbonic anhydrase IX (CAIX) protein and renal cancer cells. Because the evanescent field of the fiber is strongly coupled with nanointerfaces in the near-infrared region, the proposed optical microfiber biosensor achieves ultrahigh-sensitivity detection of the CAIX protein biomarker with ultralow limits of detection (LODs) of 13.8 zM in pure buffer solution and 0.19 aM in 30% serum solution. In addition, the proposed sensor also successfully and specifically recognizes living renal cancer cells in cell culture media with a LOD of 180 cells/mL. This strategy may serves as a powerful biosensing platform that combines the quantification of protein biomarkers and cancer cells, resulting in a higher accuracy of early-stage renal cancer diagnosis and screenings.
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Affiliation(s)
- Hongtao Li
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei 230601, China
- School of Physics and Optoelectronic Engineering, Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, Anhui University, Hefei 230601, China
- Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology, College of Physics Science and Technology, Guangxi Normal University, Guilin 541004, China
| | - Tianqi Huang
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei 230601, China
- School of Physics and Optoelectronic Engineering, Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, Anhui University, Hefei 230601, China
| | - Hao Yuan
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei 230601, China
- School of Physics and Optoelectronic Engineering, Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, Anhui University, Hefei 230601, China
| | - Liang Lu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei 230601, China
- School of Physics and Optoelectronic Engineering, Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, Anhui University, Hefei 230601, China
| | - Zhigang Cao
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei 230601, China
- School of Physics and Optoelectronic Engineering, Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, Anhui University, Hefei 230601, China
| | - Lei Zhang
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei 230601, China
- School of Physics and Optoelectronic Engineering, Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, Anhui University, Hefei 230601, China
| | - Yu Yang
- School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China
| | - Benli Yu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei 230601, China
- School of Physics and Optoelectronic Engineering, Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, Anhui University, Hefei 230601, China
| | - Hongzhi Wang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei 230031, China
- Institute of Urology, Anhui Medical University, Hefei 230031, China
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Wang H, Deng G, Dong L, Zhao K, Chen K, Chiang KS, Wu J. Engineering of metal-organic framework nanomaterials on long-period fiber grating for acetone vapor sensing. RSC Adv 2022; 12:33852-33858. [PMID: 36505719 PMCID: PMC9693743 DOI: 10.1039/d2ra06038h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022] Open
Abstract
Metal-organic framework (MOF) material is one of the most promising porous nanomaterials for volatile organic compound (VOC) adsorption and sensing. The large surface area and the high porosity of MOF contribute to the high sensitivity of MOF-based VOC sensors. In this study, we engineer the coating of the zeolitic imidazolate framework material ZIF-8 grown on the surface of a long-period fiber grating (LPFG) for acetone vapor sensing. Being a periodic structure formed in a single-mode optical fiber, an LPFG is designed to couple light from the core to the cladding of the fiber at a specific resonance wavelength. Adsorption of acetone vapor molecules in the framework of the ZIF-8 coating can change the refractive index of the coating and cause a shift in the resonance wavelength of the LPFG. The sensitivity of the resonance shift of the LPFG to the acetone vapor concentration depends strongly on the thickness of the ZIF-8 coating. To create a dense ZIF-8 coating, at least five growth cycles of ZIF-8 (30 min growth for one cycle) are required, and nine growth cycles can create a 500 nm thick coating. The LPFG coated with nine growth cycles of ZIF-8 provides a high sensitivity of 21.9 nm ppm-1, a low detection limit of 1.4 ppm, and a wide detection range of about 1500 ppm. Our results can facilitate the development of high-performance optical fiber sensors based on MOF for VOC detection.
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Affiliation(s)
- Haishi Wang
- Collaborative Innovation Center of Integrated Computation and Chip Security, Chengdu University of Information TechnologyChengduChina,School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of ChinaChengduChina
| | - Guowei Deng
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal UniversityChengduChina,School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of ChinaChengduChina
| | - Lianghai Dong
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of ChinaChengduChina
| | - Ke Zhao
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of ChinaChengduChina
| | - Kaixin Chen
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of ChinaChengduChina
| | - Kin Seng Chiang
- Department of Electrical Engineering, City University of Hong KongHong KongChina
| | - Jieyun Wu
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of ChinaChengduChina
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Kaur B, Kumar S, Kaushik BK. Recent advancements in optical biosensors for cancer detection. Biosens Bioelectron 2022; 197:113805. [PMID: 34801795 DOI: 10.1016/j.bios.2021.113805] [Citation(s) in RCA: 92] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/29/2021] [Accepted: 11/13/2021] [Indexed: 12/13/2022]
Abstract
Optical biosensors are rapid, real-time, and portable, have a low detection limit and a high sensitivity, and have a great potential for diagnosing various types of cancer. Optical biosensors can detect cancer in a few million malignant cells, in comparison to conventional diagnosis techniques that use 1 billion cells in tumor tissue with a diameter of 7 nm-10 nm. Current cancer detection methods are also costly, inconvenient, complex, time consuming, and require technical specialists. This review focuses on recent advances in optical biosensors for early detection of cancer. It is primarily concerned with advancements in the design of various biosensors using resonance, scattering, chemiluminescence, luminescence, interference, fluorescence, absorbance or reflectance, and various fiber types. The development of various two-dimensional materials with optical properties such as biocompatibility, field enhancement, and a higher surface-to-volume ratio, as well as advancements in microfabrication technologies, have accelerated the development of optical sensors for early detection of cancer and other diseases. Surface enhanced Raman spectroscopy technology has the potential to detect a single molecule with high specificity, and terahertz waves are a recently explored technology for cancer detection. Due to the low electromagnetic interference, small size, multiplexing, and remote sensing capabilities of optical fiber-based platforms, they may be a driving force behind the rapid development of biosensors. The advantages and disadvantages of existing and future optical biosensor designs for cancer detection are discussed in detail. Additionally, a prospect for future advancements in the development of optical biosensors for point-of-care and clinical applications is highlighted.
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Affiliation(s)
- Baljinder Kaur
- Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Santosh Kumar
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, 252059, China; Department of Electrical and Electronics & Communication Engineering, DIT University, Dehradun, 248009, India.
| | - Brajesh Kumar Kaushik
- Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
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Loyez M, DeRosa MC, Caucheteur C, Wattiez R. Overview and emerging trends in optical fiber aptasensing. Biosens Bioelectron 2022; 196:113694. [PMID: 34637994 DOI: 10.1016/j.bios.2021.113694] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 12/16/2022]
Abstract
Optical fiber biosensors have attracted growing interest over the last decade and quickly became a key enabling technology, especially for the detection of biomarkers at extremely low concentrations and in small volumes. Among the many and recent fiber-optic sensing amenities, aptamers-based sensors have shown unequalled performances in terms of ease of production, specificity, and sensitivity. The immobilization of small and highly stable bioreceptors such as DNA has bolstered their use for the most varied applications e.g., medical diagnosis, food safety and environmental monitoring. This review highlights the recent advances in aptamer-based optical fiber biosensors. An in-depth analysis of the literature summarizes different fiber-optic structures and biochemical strategies for molecular detection and immobilization of receptors over diverse surfaces. In this review, we analyze the features offered by those sensors and discuss about the next challenges to be addressed. This overview investigates both biochemical and optical parameters, drawing the guiding lines for forthcoming innovations and prospects in this ever-growing field of research.
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Affiliation(s)
- Médéric Loyez
- Proteomics and Microbiology Department, University of Mons, Avenue du Champ de Mars 6, 7000, Mons, Belgium; Electromagnetism and Telecommunication Department, University of Mons, Bld. Dolez 31, 7000, Mons, Belgium.
| | - Maria C DeRosa
- Department of Chemistry, 203 Steacie Building, Carleton University, 1125, Colonel By Drive, Ottawa, ON K1S 5B6, Canada
| | - Christophe Caucheteur
- Electromagnetism and Telecommunication Department, University of Mons, Bld. Dolez 31, 7000, Mons, Belgium
| | - Ruddy Wattiez
- Proteomics and Microbiology Department, University of Mons, Avenue du Champ de Mars 6, 7000, Mons, Belgium
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Bekmurzayeva A, Ashikbayeva Z, Myrkhiyeva Z, Nugmanova A, Shaimerdenova M, Ayupova T, Tosi D. Label-free fiber-optic spherical tip biosensor to enable picomolar-level detection of CD44 protein. Sci Rep 2021; 11:19583. [PMID: 34599251 PMCID: PMC8486867 DOI: 10.1038/s41598-021-99099-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 09/20/2021] [Indexed: 12/11/2022] Open
Abstract
Increased level of CD44 protein in serum is observed in several cancers and is associated with tumor burden and metastasis. Current clinically used detection methods of this protein are time-consuming and use labeled reagents for analysis. Therefore exploring new label-free and fast methods for its quantification including its detection in situ is of importance. This study reports the first optical fiber biosensor for CD44 protein detection, based on a spherical fiber optic tip device. The sensor is easily fabricated from an inexpensive material (single-mode fiber widely used in telecommunication) in a fast and robust manner through a CO2 laser splicer. The fabricated sensor responded to refractive index change with a sensitivity of 95.76 dB/RIU. The spherical tip was further functionalized with anti-CD44 antibodies to develop a biosensor and each step of functionalization was verified by an atomic force microscope. The biosensor detected a target of interest with an achieved limit of detection of 17 pM with only minor signal change to two control proteins. Most importantly, concentrations tested in this work are very broad and are within the clinically relevant concentration range. Moreover, the configuration of the proposed biosensor allows its potential incorporation into an in situ system for quantitative detection of this biomarker in a clinical setting.
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Affiliation(s)
- Aliya Bekmurzayeva
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan.
- National Laboratory Astana, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan.
| | - Zhannat Ashikbayeva
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan.
| | - Zhuldyz Myrkhiyeva
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
| | - Aigerim Nugmanova
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
| | - Madina Shaimerdenova
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
| | - Takhmina Ayupova
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
| | - Daniele Tosi
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
- National Laboratory Astana, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
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7
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Xiao P, Sun Z, Huang Y, Lin W, Ge Y, Xiao R, Li K, Li Z, Lu H, Yang M, Liang L, Sun LP, Ran Y, Li J, Guan BO. Development of an optical microfiber immunosensor for prostate specific antigen analysis using a high-order-diffraction long period grating. OPTICS EXPRESS 2020; 28:15783-15793. [PMID: 32549415 DOI: 10.1364/oe.391889] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
Fiber-optic biosensors are of great interest to many bio/chemical sensing applications. In this study, we demonstrate a high-order-diffraction long period grating (HOD-LPG) for the detection of prostate specific antigen (PSA). A HOD-LPG with a period number of less than ten and an elongated grating pitch could realize a temperature-insensitive and bending-independent biosensor. The bio-functionalized HOD-LPG was capable of detecting PSA in phosphate buffered saline with concentrations ranging from 5 to 500 ng/ml and exhibited excellent specificity. A limit of detection of 9.9 ng/ml was achieved, which is promising for analysis of the prostate specific antigen.
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8
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A metal-organic zeolitic framework with immobilized urease for use in a tapered optical fiber urea biosensor. Mikrochim Acta 2019; 187:72. [DOI: 10.1007/s00604-019-4026-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 11/09/2019] [Indexed: 12/13/2022]
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9
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Doroudian M, MacLoughlin R, Poynton F, Prina-Mello A, Donnelly SC. Nanotechnology based therapeutics for lung disease. Thorax 2019; 74:965-976. [PMID: 31285360 DOI: 10.1136/thoraxjnl-2019-213037] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 05/06/2019] [Accepted: 05/13/2019] [Indexed: 11/03/2022]
Abstract
Nanomedicine is a multidisciplinary research field with an integration of traditional sciences such as chemistry, physics, biology and materials science. The application of nanomedicine for lung diseases as a relatively new area of interdisciplinary science has grown rapidly over the last 10 years. Promising research outcomes suggest that nanomedicine will revolutionise the practice of medicine, through the development of new approaches in therapeutic agent delivery, vaccine development and nanotechnology-based medical detections. Nano-based approaches in the diagnosis and treatment of lung diseases will, in the not too distant future, change the way we practise medicine. This review will focus on the current trends and developments in the clinical translation of nanomedicine for lung diseases, such as in the areas of lung cancer, cystic fibrosis, asthma, bacterial infections and COPD.
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Affiliation(s)
- Mohammad Doroudian
- Department of Medicine, Tallaght University Hospital, Dublin 24 & Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Ronan MacLoughlin
- Aerogen, IDA Business Park, Galway, Ireland.,School of Pharmacy, Royal College of Surgeons, Dublin, Ireland.,School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin, Ireland
| | - Fergus Poynton
- Department of Medicine, Tallaght University Hospital, Dublin 24 & Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Adriele Prina-Mello
- CRANN Institute and AMBER Centre, University of Dublin Trinity College, Dublin, Ireland.,Department of Medicine, Laboratory for Biological Characterization of Advanced Materials (LBCAM), Trinity College Dublin, Dublin, Ireland.,Nanomedicine Group, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland
| | - Seamas C Donnelly
- Department of Medicine, Tallaght University Hospital, Dublin 24 & Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
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Kaushik S, Tiwari U, Prashar S, Das B, Sinha RK. Label-free detection of Escherichia coli bacteria by cascaded chirped long period gratings immunosensor. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:025003. [PMID: 30831695 DOI: 10.1063/1.5036693] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 01/16/2019] [Indexed: 05/28/2023]
Abstract
An optical fiber based immunosensing platform formed by two identical chirped long period gratings (CLPGs) for sensitive and label-free detection of Escherichia coli (E. coli) is presented. The proposed immunosensor having two CLPGs with an inter-grating space (IGS) works like a Mach-Zehnder interferometer. The important feature of this sensor is that by changing the refractive index (RI) induced phase at the IGS region, a corresponding shift in resonance wavelength can be realized without affecting the actual grating region. Additionally, the confining bandwidth of the interference fringes promotes greater resolution in the resonance wavelength analysis of the transmission spectrum. The main aim of this study was the specific and rapid detection of the E. coli bacteria in phosphate buffer saline (detection range: 10 cfu/ml to 60 cfu/ml) by using the bio-functionalized IGS region as a sensing probe of the dual CLPG structure. The observed detection limit was 7 cfu/ml. For specificity analysis, Salmonella typhimurium and Staphylococcus aureus were tested and no significant shift in resonance wavelength was observed. In addition, the proposed immunosensor has the ability to selectively detect E. coli in real samples including lake water. The high specificity, good sensitivity to ambient RI, and robustness of the developed sensing platform will open a new avenue in optical immunosensing technology, and cascaded long CLPG sensors can contribute significantly to the detection of pathogenic bacteria in water and food samples.
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Affiliation(s)
- Siddharth Kaushik
- Advanced Materials and Sensors (V 4), Central Scientific Instruments Organization, Chandigarh 160030, India
| | - Umesh Tiwari
- Advanced Materials and Sensors (V 4), Central Scientific Instruments Organization, Chandigarh 160030, India
| | | | - Bhargab Das
- Advanced Materials and Sensors (V 4), Central Scientific Instruments Organization, Chandigarh 160030, India
| | - Ravindra K Sinha
- Advanced Materials and Sensors (V 4), Central Scientific Instruments Organization, Chandigarh 160030, India
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11
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Bekmurzayeva A, Dukenbayev K, Shaimerdenova M, Bekniyazov I, Ayupova T, Sypabekova M, Molardi C, Tosi D. Etched Fiber Bragg Grating Biosensor Functionalized with Aptamers for Detection of Thrombin. SENSORS (BASEL, SWITZERLAND) 2018; 18:E4298. [PMID: 30563228 PMCID: PMC6308570 DOI: 10.3390/s18124298] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/26/2018] [Accepted: 12/03/2018] [Indexed: 12/19/2022]
Abstract
A biosensor based on an etched Fiber Bragg Grating (EFBG) for thrombin detection is reported. The sensing system is based on a Fiber Bragg Grating (FBG) with a Bragg wavelength of 1550 nm, wet-etched in hydrofluoric acid (HF) for ~27 min, to achieve sensitivity to a refractive index (RI) of 17.4 nm/RIU (refractive index unit). Subsequently, in order to perform a selective detection of thrombin, the EFBG has been functionalized with silane-coupling agent 3-(aminopropyl)triethoxysilane (APTES) and a cross-linker, glutaraldehyde, for the immobilization of thrombin-binding aptamer. The biosensor has been validated for thrombin detection in concentrations ranging from 10 nM to 80 nM. The proposed sensor presents advantages with respect to other sensor configurations, based on plasmonic resonant tilted FBG or Long Period Grating (LPG), for thrombin detection. Firstly, fabricating an EFBG only requires chemical etching. Moreover, the functionalization method used in this study (silanization) allows the avoidance of complicated and expensive fabrications, such as thin film sputtering or chemical vapor deposition. Due to their characteristics, EFBG sensors are easier to multiplex and can be used in vivo. This opens new possibilities for the detection of thrombin in clinical settings.
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Affiliation(s)
- Aliya Bekmurzayeva
- Laboratory of Biosensors and Bioinstruments, National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan.
- School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Kanat Dukenbayev
- School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Madina Shaimerdenova
- Laboratory of Biosensors and Bioinstruments, National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Ildar Bekniyazov
- Laboratory of Biosensors and Bioinstruments, National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Takhmina Ayupova
- Laboratory of Biosensors and Bioinstruments, National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Marzhan Sypabekova
- Laboratory of Biosensors and Bioinstruments, National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan.
- School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Carlo Molardi
- School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Daniele Tosi
- Laboratory of Biosensors and Bioinstruments, National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan.
- School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan.
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12
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Kaushik S, Tiwari UK, Pal SS, Sinha RK. Rapid detection of Escherichia coli using fiber optic surface plasmon resonance immunosensor based on biofunctionalized Molybdenum disulfide (MoS 2) nanosheets. Biosens Bioelectron 2018; 126:501-509. [PMID: 30476881 DOI: 10.1016/j.bios.2018.11.006] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 09/29/2018] [Accepted: 11/03/2018] [Indexed: 02/07/2023]
Abstract
The molybdenum disulfide (MoS2) nanosheets functionalized fiber optic surface plasmon resonance (SPR) immunosensor has been reported for the sensitive detection of Escherichia coli (E. coli). The MoS2 nanosheets were prepared by chemical exfoliation method. The synthesised nanostructures were characterized for their structural, morphological and optical properties. The E. coli monoclonal antibodies were successfully immobilized on the MoS2 functionalized sensing platform via hydrophobic interactions. An alternative method simplifying the antibodies immobilization process by functionalization of 2D nanomaterial (MoS2 nanosheets) for rapid (~15 mins) bacterial quantification is presented in this study. The immunosensor uses wavelength interrogation method and a strong linear relationship (R2 = 0.994) was observed between spectral response of immunosensor and different concentration of E. coli. The nonspecificity and cross-reactivity studies of the developed immunosensor were investigated with detection of Salmonella Typhimurium and Staphylococcus aureus. To demonstrate the practical application, spiked samples of water and orange juice were analysed with acceptable recovery results. The label-free immunosensor exhibits better performance, detection limit (94 CFU/mL), high sensitivity (2.9 nm/1000 CFU mL-1; 3135 nm/RIU) and profound specificity as compared to conventional fiber optic SPR sensor (detection limit: 391 CFU/mL, sensitivity: 0.6 nm/1000 CFU mL-1; 1646 nm/RIU). This sensing platform shows promising applications in regular water and food quality monitoring for various pathogenic microorganisms.
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Affiliation(s)
- Siddharth Kaushik
- Advanced Materials and Sensors (V 4), CSIR-Central Scientific Instruments Organization, Chandigarh 160030, India; Academy of Scientific and Innovative Research, CSIR-CSIO Campus, Chandigarh 160030, India
| | - Umesh K Tiwari
- Advanced Materials and Sensors (V 4), CSIR-Central Scientific Instruments Organization, Chandigarh 160030, India; Academy of Scientific and Innovative Research, CSIR-CSIO Campus, Chandigarh 160030, India
| | - Sudipta S Pal
- Advanced Materials and Sensors (V 4), CSIR-Central Scientific Instruments Organization, Chandigarh 160030, India; Academy of Scientific and Innovative Research, CSIR-CSIO Campus, Chandigarh 160030, India
| | - Ravindra K Sinha
- Advanced Materials and Sensors (V 4), CSIR-Central Scientific Instruments Organization, Chandigarh 160030, India; TIFAC-Centre of Relevance and Excellence in Fiber Optics and Optical Communication, Department of Applied Physics, Delhi Technological University, Delhi 110042, India.
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