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Bekmurzayeva A, Nurlankyzy M, Abdossova A, Myrkhiyeva Z, Tosi D. All-fiber label-free optical fiber biosensors: from modern technologies to current applications [Invited]. BIOMEDICAL OPTICS EXPRESS 2024; 15:1453-1473. [PMID: 38495725 PMCID: PMC10942689 DOI: 10.1364/boe.515563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/16/2024] [Accepted: 01/26/2024] [Indexed: 03/19/2024]
Abstract
Biosensors are established as promising analytical tools for detecting various analytes important in biomedicine and environmental monitoring. Using fiber optic technology as a sensing element in biosensors offers low cost, high sensitivity, chemical inertness, and immunity to electromagnetic interference. Optical fiber sensors can be used in in vivo applications and multiplexed to detect several targets simultaneously. Certain configurations of optical fiber technology allow the detection of analytes in a label-free manner. This review aims to discuss recent advances in label-free optical fiber biosensors from a technological and application standpoint. First, modern technologies used to build label-free optical fiber-based sensors will be discussed. Then, current applications where these technologies are applied are elucidated. Namely, examples of detecting soluble cancer biomarkers, hormones, viruses, bacteria, and cells are presented.
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Affiliation(s)
- Aliya Bekmurzayeva
- National Laboratory Astana, Nazarbayev University, Astana, 010000, Kazakhstan
| | - Marzhan Nurlankyzy
- National Laboratory Astana, Nazarbayev University, Astana, 010000, Kazakhstan
- School of Engineering and Digital Sciences, Nazarbayev University, Astana, 010000, Kazakhstan
| | - Albina Abdossova
- School of Engineering and Digital Sciences, Nazarbayev University, Astana, 010000, Kazakhstan
| | - Zhuldyz Myrkhiyeva
- National Laboratory Astana, Nazarbayev University, Astana, 010000, Kazakhstan
- School of Sciences and Humanities, Nazarbayev University, Astana, 010000, Kazakhstan
| | - Daniele Tosi
- National Laboratory Astana, Nazarbayev University, Astana, 010000, Kazakhstan
- School of Engineering and Digital Sciences, Nazarbayev University, Astana, 010000, Kazakhstan
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Zhang H, Wang L, Xiao Q, Ma J, Zhao Y, Gong M. Wide-field color imaging through multimode fiber with single wavelength illumination: plug-and-play approach. OPTICS EXPRESS 2024; 32:5131-5148. [PMID: 38439247 DOI: 10.1364/oe.507252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 12/11/2023] [Indexed: 03/06/2024]
Abstract
Multimode fiber (MMF) is extensively studied for its ability to transmit light modes in parallel, potentially minimizing optical fiber size in imaging. However, current research predominantly focuses on grayscale imaging, with limited attention to color studies. Existing colorization methods often involve costly white light lasers or multiple light sources, increasing optical system expenses and space. To achieve wide-field color images with typical monochromatic illumination MMF imaging system, we proposed a data-driven "colorization" approach and a neural network called SpeckleColorNet, merging U-Net and conditional GAN (cGAN) architectures, trained by a combined loss function. This approach, demonstrated on a 2-meter MMF system with single-wavelength illumination and the Peripheral Blood Cell (PBC) dataset, outperforms grayscale imaging and alternative colorization methods in readability, definition, detail, and accuracy. Our method aims to integrate MMF into clinical medicine and industrial monitoring, offering cost-effective high-fidelity color imaging. It serves as a plug-and-play replacement for conventional grayscale algorithms in MMF systems, eliminating the need for additional hardware.
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Zhang H, Zhou X, Li X, Gong P, Zhang Y, Zhao Y. Recent Advancements of LSPR Fiber-Optic Biosensing: Combination Methods, Structure, and Prospects. BIOSENSORS 2023; 13:bios13030405. [PMID: 36979617 PMCID: PMC10046874 DOI: 10.3390/bios13030405] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/15/2023] [Accepted: 03/18/2023] [Indexed: 05/31/2023]
Abstract
Fiber-optic biosensors based on localized surface plasmon resonance (LSPR) have the advantages of great biocompatibility, label-free, strong stability, and real-time monitoring of various analytes. LSPR fiber-optic biosensors have attracted extensive research attention in the fields of environmental science, clinical medicine, disease diagnosis, and food safety. The latest development of LSPR fiber-optic biosensors in recent years has focused on the detection of clinical disease markers and the detection of various toxic substances in the environment and the progress of new sensitization mechanisms in LSPR fiber-optic sensors. Therefore, this paper reviews the LSPR fiber-optic sensors from the aspects of working principle, structure, and application fields in biosensors. According to the structure, the sensor can be divided into three categories: traditional ordinary optical fiber, special shape optical fiber, and specialty optical fiber. The advantages and disadvantages of existing and future LSPR fiber-optic biosensors are discussed in detail. Additionally, the prospect of future development of fiber-optic biosensors based on LSPR is addressed.
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Affiliation(s)
- Hongxin Zhang
- College of Information Science and Engineering, Northeastern University, Shenyang 110819, China
| | - Xue Zhou
- College of Information Science and Engineering, Northeastern University, Shenyang 110819, China
| | - Xuegang Li
- College of Information Science and Engineering, Northeastern University, Shenyang 110819, China
- The State Key Laboratory of Synthetical Automation for Process Industries, Shenyang 110819, China
- Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao 066004, China
| | - Pengqi Gong
- College of Information Science and Engineering, Northeastern University, Shenyang 110819, China
- The State Key Laboratory of Synthetical Automation for Process Industries, Shenyang 110819, China
- Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao 066004, China
| | - Yanan Zhang
- College of Information Science and Engineering, Northeastern University, Shenyang 110819, China
- The State Key Laboratory of Synthetical Automation for Process Industries, Shenyang 110819, China
- Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao 066004, China
| | - Yong Zhao
- College of Information Science and Engineering, Northeastern University, Shenyang 110819, China
- The State Key Laboratory of Synthetical Automation for Process Industries, Shenyang 110819, China
- Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao 066004, China
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Geldof F, Witteveen M, Sterenborg HJCM, Ruers TJM, Dashtbozorg B. Diffuse reflection spectroscopy at the fingertip: design and performance of a compact side-firing probe for tissue discrimination during colorectal cancer surgery. BIOMEDICAL OPTICS EXPRESS 2023; 14:128-147. [PMID: 36698675 PMCID: PMC9841999 DOI: 10.1364/boe.476242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 06/17/2023]
Abstract
Optical technologies are widely used for tissue sensing purposes. However, maneuvering conventional probe designs with flat-tipped fibers in narrow spaces can be challenging, for instance during pelvic colorectal cancer surgery. In this study, a compact side-firing fiber probe was developed for tissue discrimination during colorectal cancer surgery using diffuse reflectance spectroscopy. The optical behavior was compared to flat-tipped fibers using both Monte Carlo simulations and experimental phantom measurements. The tissue classification performance was examined using freshly excised colorectal cancer specimens. Using the developed probe and classification algorithm, an accuracy of 0.92 was achieved for discriminating tumor tissue from healthy tissue.
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Affiliation(s)
- Freija Geldof
- Department of Surgery, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Mark Witteveen
- Department of Surgery, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Henricus J. C. M. Sterenborg
- Department of Surgery, Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Biomedical Engineering and Physics, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Theo J. M. Ruers
- Department of Surgery, Netherlands Cancer Institute, Amsterdam, The Netherlands
- Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Behdad Dashtbozorg
- Department of Surgery, Netherlands Cancer Institute, Amsterdam, The Netherlands
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Zhuo X, Zhou L, Bian Y, Shen H. Efficient taper optical hydrogel fiber coupler drawn from suspended photocuring 3D printing. OPTICS LETTERS 2022; 47:4853-4856. [PMID: 36181134 DOI: 10.1364/ol.470543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 08/27/2022] [Indexed: 06/16/2023]
Abstract
Integrating bio-friendly optical hydrogel fibers (HFs) with solid-state fibers (SFs) could expand the horizons of fiber-optic technology for bio-photonics. However, methods for coupling HF and SF-based systems are inefficient due to the mode field mismatch. Here, a hydrogel fiber coupler with a taper core-cladding structure is demonstrated for efficiently coupling HF to SF and fabricated through suspended photocuring 3D printing. Coupling efficiencies of 8.3 and 9.4 dB are obtained at 632 and 473 nm, respectively, which are 22% better than those of conventional couplers. The working bandwidth covers visible wavelengths, satisfying bioengineering requirements. This research removes obstacles to optical fiber applications in bioscience.
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Akgönüllü S, Özgür E, Denizli A. Quartz Crystal Microbalance-Based Aptasensors for Medical Diagnosis. MICROMACHINES 2022; 13:1441. [PMID: 36144064 PMCID: PMC9503788 DOI: 10.3390/mi13091441] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/27/2022] [Accepted: 08/28/2022] [Indexed: 06/16/2023]
Abstract
Aptamers are important materials for the specific determination of different disease-related biomarkers. Several methods have been enhanced to transform selected target molecule-specific aptamer bindings into measurable signals. A number of specific aptamer-based biosensors have been designed for potential applications in clinical diagnostics. Various methods in combination with a wide variety of nano-scale materials have been employed to develop aptamer-based biosensors to further increase sensitivity and detection limit for related target molecules. In this critical review, we highlight the advantages of aptamers as biorecognition elements in biosensors for target biomolecules. In recent years, it has been demonstrated that electrode material plays an important role in obtaining quick, label-free, simple, stable, and sensitive detection in biological analysis using piezoelectric devices. For this reason, we review the recent progress in growth of aptamer-based QCM biosensors for medical diagnoses, including virus, bacteria, cell, protein, and disease biomarker detection.
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Losch MS, Kardux F, Dankelman J, Hendriks BHW. Steering light in fiber-optic medical devices: a patent review. Expert Rev Med Devices 2022; 19:259-271. [PMID: 35298323 DOI: 10.1080/17434440.2022.2054334] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Steering light is relevant to many medical applications that require tissue illumination, sensing, or modification. To control the propagation direction of light beams, a great variety of innovative fiber-optic medical devices have been designed. AREAS COVERED This review provides a comprehensive overview of the patent literature on light beam control in fiber-optic medical devices. The Web of Science Derwent Innovation Index database was scanned, and 81 patents on fiber-optic devices published in the last 20 years (2001-2021) were retrieved and categorized based on the working principle to steer light (refraction/reflection, scattering, diffraction) and the design strategy that was employed (within fiber, at fiber end, outside fiber). EXPERT OPINION Patents describing medical devices were found for all categories, except for generating diffraction at the fiber end surface. The insight in the different designs reveals that there are still several opportunities to design innovative devices that can collect light at an angle off-axis, reduce the angular distribution of light, or split light into multiple beams.
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Affiliation(s)
- Merle S Losch
- Department of Biomechanical Engineering, Delft University of Technology, Delft, The Netherlands
| | - Famke Kardux
- Department of Biomechanical Engineering, Delft University of Technology, Delft, The Netherlands
| | - Jenny Dankelman
- Department of Biomechanical Engineering, Delft University of Technology, Delft, The Netherlands
| | - Benno H W Hendriks
- Department of Biomechanical Engineering, Delft University of Technology, Delft, The Netherlands.,Department of In-Body Systems, Philips ResearchRoyal Philips, Eindhoven, The Netherlands
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Lee SY, Parot VJ, Bouma BE, Villiger M. Confocal 3D reflectance imaging through multimode fiber without wavefront shaping. OPTICA 2022; 9:112-120. [PMID: 35419464 PMCID: PMC9005109 DOI: 10.1364/optica.446178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
Imaging through optical multimode fiber (MMF) has the potential to enable hair-thin endoscopes that reduce the invasiveness of imaging deep inside tissues and organs. Active wavefront shaping and fluorescent labeling have recently been exploited to overcome modal scrambling and enable MMF imaging. Here, we present a computational approach that circumvents the need for active wavefront control and exogenous fluorophores. We demonstrate the reconstruction of depth-gated confocal images through MMF using a raster-scanned, focused input illumination at the fiber proximal end. We show the compatibility of this approach with quantitative phase, dark-field, and polarimetric imaging. Computational imaging through MMF opens a new pathway for minimally invasive imaging in medical diagnosis and biological investigations.
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Affiliation(s)
- Szu-Yu Lee
- Harvard Medical School and Massachusetts General Hospital, Wellman Center for Photomedicine, Boston, Massachusetts 02114, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Vicente J. Parot
- Harvard Medical School and Massachusetts General Hospital, Wellman Center for Photomedicine, Boston, Massachusetts 02114, USA
- Institute for Biological and Medical Engineering, Pontificia Universidad Católica de Chile, Santiago 7820244, Chile
| | - Brett E. Bouma
- Harvard Medical School and Massachusetts General Hospital, Wellman Center for Photomedicine, Boston, Massachusetts 02114, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Martin Villiger
- Harvard Medical School and Massachusetts General Hospital, Wellman Center for Photomedicine, Boston, Massachusetts 02114, USA
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Wang D, Kuzma ML, Tan X, He TC, Dong C, Liu Z, Yang J. Phototherapy and optical waveguides for the treatment of infection. Adv Drug Deliv Rev 2021; 179:114036. [PMID: 34740763 PMCID: PMC8665112 DOI: 10.1016/j.addr.2021.114036] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 10/11/2021] [Accepted: 10/28/2021] [Indexed: 02/07/2023]
Abstract
With rapid emergence of multi-drug resistant microbes, it is imperative to seek alternative means for infection control. Optical waveguides are an auspicious delivery method for precise administration of phototherapy. Studies have shown that phototherapy is promising in fighting against a myriad of infectious pathogens (i.e. viruses, bacteria, fungi, and protozoa) including biofilm-forming species and drug-resistant strains while evading treatment resistance. When administered via optical waveguides, phototherapy can treat both superficial and deep-tissue infections while minimizing off-site effects that afflict conventional phototherapy and pharmacotherapy. Despite great therapeutic potential, exact mechanisms, materials, and fabrication designs to optimize this promising treatment option are underexplored. This review outlines principles and applications of phototherapy and optical waveguides for infection control. Research advances, challenges, and outlook regarding this delivery system are rigorously discussed in a hope to inspire future developments of optical waveguide-mediated phototherapy for the management of infection and beyond.
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Affiliation(s)
- Dingbowen Wang
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Michelle Laurel Kuzma
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Xinyu Tan
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; Academy of Orthopedics, Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong Province 510280, China
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA; Department of Surgery, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Cheng Dong
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Zhiwen Liu
- Department of Electrical Engineering, Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA
| | - Jian Yang
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA.
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Hsu CY, Prabhu GRD, Urban PL. Telechemistry 2.0: Remote monitoring of fluorescent chemical reactions. HARDWAREX 2021; 10:e00244. [PMID: 35607687 PMCID: PMC9123467 DOI: 10.1016/j.ohx.2021.e00244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/16/2021] [Accepted: 10/25/2021] [Indexed: 06/15/2023]
Abstract
Implementation of the Internet-of-Things in chemistry research has the potential to improve research methodologies. Here, we describe a cloud-integrated real-time laboratory monitoring system for: (i) monitoring reactions involving fluorescent chemical species, and (ii) monitoring laboratory environment for safety purpose. A probe-type fluorescence detection system has been constructed to monitor reactions that involve fluorescent molecules. This device incorporates an in-house-built 3D-printed probe, two optical fibers, a light-emitting diode, a photoresistor, and a microcontroller board (MCB). The MCB relays experimental data to a single-board computer (SBC), which then uploads the data to a cloud-based platform (ThingSpeak) for data storage and visualization. The SBC is also connected to auxiliary sensors to measure relative alcohol vapor concentration, temperature, and humidity at different locations in the laboratory. The device has been validated and tested for its performance by monitoring a fluorescent chemical reaction (synthesis of fluorescent gold nanoclusters) for a period of 12 h.
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Affiliation(s)
- Chun-Yao Hsu
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
| | - Gurpur Rakesh D. Prabhu
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
| | - Pawel L. Urban
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
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Ochoa M, Algorri JF, Roldán-Varona P, Rodríguez-Cobo L, López-Higuera JM. Recent Advances in Biomedical Photonic Sensors: A Focus on Optical-Fibre-Based Sensing. SENSORS (BASEL, SWITZERLAND) 2021; 21:6469. [PMID: 34640788 PMCID: PMC8513032 DOI: 10.3390/s21196469] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 01/22/2023]
Abstract
In this invited review, we provide an overview of the recent advances in biomedical photonic sensors within the last five years. This review is focused on works using optical-fibre technology, employing diverse optical fibres, sensing techniques, and configurations applied in several medical fields. We identified technical innovations and advancements with increased implementations of optical-fibre sensors, multiparameter sensors, and control systems in real applications. Examples of outstanding optical-fibre sensor performances for physical and biochemical parameters are covered, including diverse sensing strategies and fibre-optical probes for integration into medical instruments such as catheters, needles, or endoscopes.
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Affiliation(s)
- Mario Ochoa
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain; (J.F.A.); (P.R.-V.)
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
| | - José Francisco Algorri
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain; (J.F.A.); (P.R.-V.)
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
| | - Pablo Roldán-Varona
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain; (J.F.A.); (P.R.-V.)
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
- CIBER-bbn, Institute of Health Carlos III, 28029 Madrid, Spain;
| | | | - José Miguel López-Higuera
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain; (J.F.A.); (P.R.-V.)
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
- CIBER-bbn, Institute of Health Carlos III, 28029 Madrid, Spain;
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Emerging Applications of Optical Fiber-Based Devices for Brain Research. ADVANCED FIBER MATERIALS 2021. [DOI: 10.1007/s42765-021-00092-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Krizek J, Lavickova B, Moser C. Degradation study on molecules released from laser-based jet injector. Int J Pharm 2021; 602:120664. [PMID: 33933639 DOI: 10.1016/j.ijpharm.2021.120664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 04/16/2021] [Accepted: 04/26/2021] [Indexed: 12/16/2022]
Abstract
Development of needle-free methods to administer injectable therapeutics has been researched for a few decades. We focused our attention on a laser-based jet injection technique where the liquid-jet actuation mechanism is based on optical cavitation. This study investigates the potential damage to therapeutic molecules which are exposed to nanosecond laser pulses in the configuration of a compact laser-based jet injection device. Implementation of a pulsed laser source at 1574 nm wavelength allowed us to generate jets from pure water solutions and circumvent the need to reformulate therapeutics with absorbing dyes. We performed H1-NMR analysis on exposed samples of Lidocaine and δ-Aminolevulinic acid. We made several tests with linear and plasmid DNA to assess the structural integrity and functional potency after ejection with our device. The tests showed no significant degradation or detectable side products, which is promising for further development and eventually clinical applications.
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Affiliation(s)
- Jan Krizek
- School of Engineering, Laboratory of Applied Photonics Devices, Swiss Federal Institute of Technology in Lausanne (EPFL), Station 17, 1015 Lausanne, Switzerland.
| | - Barbora Lavickova
- School of Engineering, Laboratory of Biological Network Characterisation, Swiss Federal Institute of Technology in Lausanne (EPFL), Station 17, 1015 Lausanne, Switzerland
| | - Christophe Moser
- School of Engineering, Laboratory of Applied Photonics Devices, Swiss Federal Institute of Technology in Lausanne (EPFL), Station 17, 1015 Lausanne, Switzerland.
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Wu C, Liu X, Ying Y. Soft and Stretchable Optical Waveguide: Light Delivery and Manipulation at Complex Biointerfaces Creating Unique Windows for On-Body Sensing. ACS Sens 2021; 6:1446-1460. [PMID: 33611914 DOI: 10.1021/acssensors.0c02566] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Over the past few decades, optical waveguides have been increasingly used in wearable/implantable devices for on-body sensing. However, conventional optical waveguides are stiff, rigid, and brittle. A mismatch between conventional optical waveguides and complex biointerfaces makes wearable/implantable devices uncomfortable to wear and potentially unsafe. Soft and stretchable polymer optical waveguides not only inherit many advantages of conventional optical waveguides (e.g., immunity to electromagnetic interference and without electrical hazards) but also provide a new perspective for solving the mismatch between conventional optical waveguides and complex biointerfaces, which is essential for the development of light-based wearable/implantable sensors. In this review, polymer optical waveguides' unique properties, including flexibility, biocompatibility and biodegradability, porosity, and stimulus responsiveness, and their applications in the wearable/implantable field in recent years are summarized. Then, we briefly discuss the current challenges of high optical loss, unstable signal transmission, low manufacturing efficiency, and difficulty in deployment during implantation of flexible polymer optical waveguides, and propose some possible solutions to these problems.
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Affiliation(s)
- Chenjian Wu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Xiangjiang Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
- College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi, 830052, China
| | - Yibin Ying
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
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de Oliveira SA, Borges R, dos Santos Rosa D, de Souza ACS, Seabra AB, Baino F, Marchi J. Strategies for Cancer Treatment Based on Photonic Nanomedicine. MATERIALS 2021; 14:ma14061435. [PMID: 33809479 PMCID: PMC8001287 DOI: 10.3390/ma14061435] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/11/2022]
Abstract
Traditional cancer treatments, such as surgery, radiotherapy, and chemotherapy, are still the most effective clinical practice options. However, these treatments may display moderate to severe side effects caused by their low temporal or spatial resolution. In this sense, photonic nanomedicine therapies have been arising as an alternative to traditional cancer treatments since they display more control of temporal and spatial resolution, thereby yielding fewer side effects. In this work, we reviewed the challenge of current cancer treatments, using the PubMed and Web of Science database, focusing on the advances of three prominent therapies approached by photonic nanomedicine: (i) photothermal therapy; (ii) photodynamic therapy; (iii) photoresponsive drug delivery systems. These photonic nanomedicines act on the cancer cells through different mechanisms, such as hyperthermic effect and delivery of chemotherapeutics and species that cause oxidative stress. Furthermore, we covered the recent advances in materials science applied in photonic nanomedicine, highlighting the main classes of materials used in each therapy, their applications in the context of cancer treatment, as well as their advantages, limitations, and future perspectives. Finally, although some photonic nanomedicines are undergoing clinical trials, their effectiveness in cancer treatment have already been highlighted by pre-clinical studies.
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Affiliation(s)
- Sueli Aparecida de Oliveira
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC, Avenida dos Estados, 5001 Santa Terezinha, Santo André 09210580, Brazil; (S.A.d.O.); (D.d.S.R.)
| | - Roger Borges
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados, 5001 Santa Terezinha, Santo André 09210580, Brazil; (R.B.); (A.C.S.d.S.); (A.B.S.)
| | - Derval dos Santos Rosa
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC, Avenida dos Estados, 5001 Santa Terezinha, Santo André 09210580, Brazil; (S.A.d.O.); (D.d.S.R.)
| | - Ana Carolina Santos de Souza
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados, 5001 Santa Terezinha, Santo André 09210580, Brazil; (R.B.); (A.C.S.d.S.); (A.B.S.)
| | - Amedea B. Seabra
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados, 5001 Santa Terezinha, Santo André 09210580, Brazil; (R.B.); (A.C.S.d.S.); (A.B.S.)
| | - Francesco Baino
- Department of Applied Science and Technology, Institute of Materials Physics and Engineering, Politecnico di Torino, Corso Duca degli Abruzzi, 10129 Torino, Italy;
| | - Juliana Marchi
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados, 5001 Santa Terezinha, Santo André 09210580, Brazil; (R.B.); (A.C.S.d.S.); (A.B.S.)
- Correspondence: ; Tel.: +55-11-3356-7588
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Minin IV, Minin OV, Liu YY, Tuchin VV, Liu CY. Concept of photonic hook scalpel generated by shaped fiber tip with asymmetric radiation. JOURNAL OF BIOPHOTONICS 2021; 14:e202000342. [PMID: 33108033 DOI: 10.1002/jbio.202000342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/24/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
Structured light have made deep impacts on modern biotechnology and clinical practice, with numerous optical systems and lasers currently being used in medicine to treat disease. We demonstrate a new concept of fiber-based optical hook scalpel. The subwavelength photonic hook is obtained in the vicinity of a shaped fiber tip with asymmetric radiation. A 1550 nm continuous-wave source, commonly used for medical imaging, has been required. Photonic hook with a lateral feature size less than the half-wavelength is achieved using a hemispherical shaped fiber tip with metallic mask. This breakthrough is carried out in ambient air by using a 4-μm-diameter fiber with a shaped tip. A good correlation is observed between the computed intensity distribution of photonic hook and the tip sizes. Photonic hook generated with a shaped fiber tip, easier to manipulate, shows far-reaching benefits for potential applications such as ophthalmic laser surgery, super-resolution microscopy, photolithography and material processing.
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Affiliation(s)
- Igor V Minin
- Department of Nondestructive Testing, Tomsk Polytechnic University, Tomsk, Russia
| | - Oleg V Minin
- Department of Nondestructive Testing, Tomsk Polytechnic University, Tomsk, Russia
| | - Yan-Yu Liu
- Department of Biomedical Engineering, National Yang-Ming University, Taipei City, Taiwan
| | - Valery V Tuchin
- Department of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Russian Academy of Sciences, Institute of Precision Mechanics and Control, Saratov, Russia
| | - Cheng-Yang Liu
- Department of Biomedical Engineering, National Yang-Ming University, Taipei City, Taiwan
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17
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Yamada Y. Textile-integrated polymer optical fibers for healthcare and medical applications. Biomed Phys Eng Express 2020; 6. [PMID: 35027510 DOI: 10.1088/2057-1976/abbf5f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 10/08/2020] [Indexed: 01/09/2023]
Abstract
With ever growing interest in far-reaching solutions for pervasive healthcare and medicine, polymer optical fibers have been rendered into textile forms. Having both fiber-optic functionalities and traditional fabric-like comfort, textile-integrated polymer optical fibers have been advocated to remove the technical barriers for long-term uninterrupted health monitoring and treatment. In this context, this paper spotlights and reviews the recently developed textile-integrated polymer optical fibers in conjunction with fabrication techniques, applications in long-term continuous health monitoring and treatment, and future perspectives in the vision of mobile health (mHealth), as well as the introductory basics of polymer optical fibers. It is designed to serve as a topical guidepost for scientists and engineers on this highly interdisciplinary and rapidly growing topic.
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18
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Ichimaru S, Hatayama M. An in situ method using a Y-type optical fiber for measuring the thickness of the carbon contamination layer on the surface of an extreme ultraviolet mirror. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2020; 91:113101. [PMID: 33261426 DOI: 10.1063/5.0017645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 10/10/2020] [Indexed: 06/12/2023]
Abstract
A new method for in situ measurement of the thickness of the carbon contamination layer on the surface of an extreme ultraviolet (EUV) mirror is proposed. This measurement is important in order to determine the most effective timing with which the mirror should be cleaned. The method we propose uses a Y-type optical fiber to measure the reflectivity profile over the wavelength range from 200 nm to 800 nm from the surface of the mirror; the reflectivity profile is normalized by the reflectivity at 800 nm wavelength. This is because the change in reflectivity is more sensitive to the carbon layer thickness in the short wavelength region rather than in the long wavelength region. The method was demonstrated using carbon/ruthenium bilayer samples deposited on commercial Si wafers. The results show that the proposed method can successfully estimate the thickness of the carbon layer and thus has the potential to measure the thickness of a thin carbon layer on an EUV mirror.
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Affiliation(s)
- Satoshi Ichimaru
- NTT Advanced Technology Corporation, 3-1, Morinosato Wakamiya, Atsugi, Kanagawa 243-0124, Japan
| | - Masatoshi Hatayama
- NTT Advanced Technology Corporation, 3-1, Morinosato Wakamiya, Atsugi, Kanagawa 243-0124, Japan
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19
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Dolganova IN, Shikunova IA, Zotov AK, Shchedrina MA, Reshetov IV, Zaytsev KI, Tuchin VV, Kurlov VN. Microfocusing sapphire capillary needle for laser surgery and therapy: Fabrication and characterization. JOURNAL OF BIOPHOTONICS 2020; 13:e202000164. [PMID: 32681714 DOI: 10.1002/jbio.202000164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/21/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
A sapphire shaped capillary needle designed for collimating and focusing of laser radiation was proposed and fabricated by the edge-defined film-fed growth technique. It features an as-grown surface quality, high transparency for visible and near-infrared radiation, high thermal and chemical resistance and the complex shape of the tip, which protects silica fibers. The needle's geometrical parameters can be adjusted for use in various situations, such as type of tissue, modality of therapy and treatment protocol. The focusing effect was demonstrated numerically and observed experimentally during coagulation of the ex vivo porcine liver samples. This needle in combination with 0.22NA optical fiber allows intensive and uniform coagulation of 150 mm3 volume interstitially and 30 mm3 superficially by laser exposure with 280 J without tissue carbonization and fiber damaging along with delicate treatment of small areas. The demonstrated results reveal the perspectives of the proposed sapphire microfocusing needle for laser surgery and therapy.
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Affiliation(s)
- Irina N Dolganova
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
- Bauman Moscow State Technical University, Moscow, Russia
| | - Irina A Shikunova
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
| | - Arsen K Zotov
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
| | - Marina A Shchedrina
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Igor V Reshetov
- Institute for Cluster Oncology, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
- Academy of Postgraduate Education FSCC FMBA, Moscow, Russia
| | - Kirill I Zaytsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
| | - Valery V Tuchin
- Saratov State University, Saratov, Russia
- Institute of Precision Mechanics and Control of the Russian Academy of Sciences, Saratov, Russia
- Tomsk State University, Tomsk, Russia
| | - Vladimir N Kurlov
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
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20
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Chen G, Wang G, Tan X, Hou K, Meng Q, Zhao P, Wang S, Zhang J, Zhou Z, Chen T, Cheng Y, Hsiao BS, Reichmanis E, Zhu M. Integrated dynamic wet spinning of core-sheath hydrogel fibers for optical-to-brain/tissue communications. Natl Sci Rev 2020; 8:nwaa209. [PMID: 34691723 PMCID: PMC8433079 DOI: 10.1093/nsr/nwaa209] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/13/2020] [Accepted: 08/13/2020] [Indexed: 12/26/2022] Open
Abstract
Hydrogel optical light-guides have received substantial interest for applications such as deep-tissue biosensors, optogenetic stimulation and photomedicine due to their biocompatibility, (micro)structure control and tissue-like Young's modulus. However, despite recent developments, large-scale fabrication with a continuous synthetic methodology, which could produce core-sheath hydrogel fibers with the desired optical and mechanical properties suitable for deep-tissue applications, has yet to be achieved. In this study, we report a versatile concept of integrated light-triggered dynamic wet spinning capable of continuously producing core-sheath hydrogel optical fibers with tunable fiber diameters, and mechanical and optical propagation properties. Furthermore, this concept also exhibited versatility for various kinds of core-sheath functional fibers. The wet spinning synthetic procedure and fabrication process were optimized with the rational design of the core/sheath material interface compatibility [core = poly(ethylene glycol diacrylate-co-acrylamide); sheath = Ca-alginate], optical transparency, refractive index and spinning solution viscosity. The resulting hydrogel optical fibers exhibited desirable low optical attenuation (0.18 ± 0.01 dB cm−1 with 650 nm laser light), excellent biocompatibility and tissue-like Young's modulus (<2.60 MPa). The optical waveguide hydrogel fibers were successfully employed for deep-tissue cancer therapy and brain optogenetic stimulation, confirming that they could serve as an efficient versatile tool for diverse deep-tissue therapy and brain optogenetic applications.
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Affiliation(s)
- Guoyin Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Gang Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Xinrong Tan
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Institute of Brain Science, Department of Ophthalmology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Kai Hou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Qingshuo Meng
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Institute of Brain Science, Department of Ophthalmology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Peng Zhao
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Institute of Brain Science, Department of Ophthalmology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Shun Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Jiayi Zhang
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Institute of Brain Science, Department of Ophthalmology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zhan Zhou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Tao Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yanhua Cheng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Benjamin S Hsiao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Elsa Reichmanis
- School of Chemical and Biomolecular Engineering, School of Chemistry and Biochemistry, School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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21
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Momsen NC, Rouse AR, Gmitro AF. Improvement in optical fiber bundle-based imaging using synchronized fiber motion. APPLIED OPTICS 2020; 59:G249-G254. [PMID: 32749346 DOI: 10.1364/ao.391825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 07/03/2020] [Indexed: 06/11/2023]
Abstract
Image quality in fiber bundle-based imaging systems is inherently limited by the size and spacing of the individual fiber cores. The fiber bundle limits the achievable spatial resolution and superimposes a fixed pattern of signal variability across the image. To overcome these limitations, piezoelectric tubes were used to synchronously dither the fiber bundle on both ends. Experimental results using the dithering approach with a commercial fiber bundle showed a substantial decrease in fixed pattern noise and an increase in spatial resolution.
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22
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Marble CB, Yakovlev VV. Biomedical optics applications of advanced lasers and nonlinear optics. JOURNAL OF BIOMEDICAL OPTICS 2020; 25:1-9. [PMID: 32329266 PMCID: PMC7177183 DOI: 10.1117/1.jbo.25.4.040902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
SIGNIFICANCE 2019 SPIE Photonics West conference hosted over 5000 presentations. Some important presentations in the Industrial Laser, Laser Source and Application (LASE) and Optoelectronics, Photonic Materials and Devices (OPTO) sections of the SPIE Photonics West conference have a risk of being overlooked by the biomedical community despite their implications for the field of biophotonics. We review some recent advances in the area of development coherent radiation sources in the infrared (IR), ultraviolet (UV), and terahertz (THz) regimes. AIM Recent advances in coherent radiation sources in the IR, deep UV, and THz regimes were outlined, and the importance of each presentation to one or more promising biomedical applications was assessed. APPROACH Presentations and proceedings from the LASE and OPTO sections were reviewed for inclusion. Emphasis was placed on talks from the Nonlinear Frequency Generation and Conversion: Materials and Devices XVIII conference, and the Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII conference. Conference sections that directly focused on biomedical applications were excluded. RESULTS Enhanced IR supercontinuum generation with compact supercontinuum sources may allow for real-time biomarker detection and create new opportunities for imaging tissues using the third biological window (1600 to 1850 nm). Efficient methods to generate deep UV (200 to 260 nm) radiation allow for the study of biologically important molecules through techniques such as resonance Raman spectroscopy while avoiding fluorescence overlap. Likewise, novel and improved THz generation methods seek to bridge the "THz gap" that has previously limited biomedical applications. CONCLUSIONS Advances in coherent radiation sources in the IR, UV, and THz regimes have created new opportunities for biomedical optics research.
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Affiliation(s)
- Christopher B. Marble
- Texas A&M University, Department of Physics and Astronomy, College Station, Texas, United States
| | - Vladislav V. Yakovlev
- Texas A&M University, Department of Physics and Astronomy, College Station, Texas, United States
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
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23
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Loke G, Yan W, Khudiyev T, Noel G, Fink Y. Recent Progress and Perspectives of Thermally Drawn Multimaterial Fiber Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1904911. [PMID: 31657053 DOI: 10.1002/adma.201904911] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/06/2019] [Indexed: 05/08/2023]
Abstract
Fibers are the building blocks of a broad spectrum of products from textiles to composites, and waveguides to wound dressings. While ubiquitous, the capabilities of fibers have not rapidly increased compared to semiconductor chip technology, for example. Recognizing that fibers lack the composition, geometry, and feature sizes for more functions, exploration of the boundaries of fiber functionality began some years ago. The approach focuses on a particular form of fiber production, thermal-drawing from a preform. This process has been used for producing single material fibers, but by combining metals, insulators, and semiconductors all within a single strand of fiber, an entire world of functionality in fibers has emerged. Fibers with optical, electrical, acoustic, or optoelectronic functionalities can be produced at scale from relatively easy-to-assemble macroscopic preforms. Two significant opportunities now present themselves. First, can one expect that fiber functions escalate in a predictable manner, creating the context for a "Moore's Law" analog in fibers? Second, as fabrics occupy an enormous surface around the body, could fabrics offer a valuable service to augment the human body? Toward answering these questions, the materials, performance, and limitations of thermally drawn fibers in different electronic applications are detailed and their potential in new fields is envisioned.
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Affiliation(s)
- Gabriel Loke
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute of Soldier Nanotechnology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Wei Yan
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Tural Khudiyev
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Grace Noel
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Yoel Fink
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute of Soldier Nanotechnology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Advanced Functional Fabrics of America (AFFOA), Cambridge, MA, 02139, USA
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24
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Surface-Enhanced Absorption Spectroscopy for Optical Fiber Sensing. MATERIALS 2019; 13:ma13010034. [PMID: 31861738 PMCID: PMC6981369 DOI: 10.3390/ma13010034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/11/2019] [Accepted: 12/13/2019] [Indexed: 12/24/2022]
Abstract
Visible and near-infrared spectroscopy are widely used for sensing applications but suffer from poor signal-to-noise ratios for the detection of compounds with low concentrations. Enhancement by surface plasmon resonance is a popular technique that can be utilized to increase the signal of absorption spectroscopy due to the increased near-field created close to the plasmons. Despite interest in surface-enhanced infrared absorption spectroscopy (SEIRAS), the method is usually applied in lab setups rather than real-life sensing situations. This study aimed to achieve enhanced absorption from plasmons on a fiber-optic probe and thus move closer to applications of SEIRAS. A tapered coreless fiber coated with a 100 nm Au film supported signal enhancement at visible wavelengths. An increase in absorption was shown for two dyes spanning concentrations from 5 × 10−8 mol/L to 8 × 10−4 mol/L: Rhodamine 6G and Crystal Violet. In the presence of the Au film, the absorbance signal was 2–3 times higher than from an identically tapered uncoated fiber. The results confirm that the concept of SEIRAS can be implemented on an optical fiber probe, enabling enhanced signal detection in remote sensing applications.
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25
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Dolganova IN, Shikunova IA, Katyba GM, Zotov AK, Mukhina EE, Shchedrina MA, Tuchin VV, Zaytsev KI, Kurlov VN. Optimization of sapphire capillary needles for interstitial and percutaneous laser medicine. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:1-7. [PMID: 31849206 PMCID: PMC7006039 DOI: 10.1117/1.jbo.24.12.128001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 11/26/2019] [Indexed: 06/10/2023]
Abstract
Sapphire capillary needles fabricated by edge-defined film-fed growth (EFG) technique hold strong potential in laser thermotherapy and photodynamic therapy, thanks to the advanced physical properties of sapphire. These needles feature an as-grown optical quality, their length is tens of centimeters, and they contain internal capillary channels, with open or closed ends. They can serve as optically transparent bearing elements with optical fibers introduced into their capillary channels in order to deliver laser radiation to biological tissues for therapeutic and, in some cases, diagnostic purposes. A potential advantage of the EFG-grown sapphire needles is associated with an ability to form the tip of a needle with complex geometry, either as-grown or mechanically treated, aimed at controlling the output radiation pattern. In order to examine a potential of the radiation pattern shaping, we present a set of fabricated sapphire needles with different tips. We studied the radiation patterns formed at the output of these needles using a He-Ne laser as a light source, and used intralipid-based tissue phantoms to proof the concept experimentally and the Monte-Carlo modeling to proof it numerically. The observed results demonstrate a good agreement between the numerical and experimental data and reveal an ability to control within wide limits the direction of tissue exposure to light and the amount of exposed tissue by managing the sapphire needle tip geometry.
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Affiliation(s)
- Irina N. Dolganova
- Russian Academy of Sciences, Institute of Solid State Physics, Chernogolovka, Russia
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
- Bauman Moscow State Technical University, Moscow, Russia
| | - Irina A. Shikunova
- Russian Academy of Sciences, Institute of Solid State Physics, Chernogolovka, Russia
| | - Gleb M. Katyba
- Russian Academy of Sciences, Institute of Solid State Physics, Chernogolovka, Russia
- Bauman Moscow State Technical University, Moscow, Russia
| | - Arsen K. Zotov
- Russian Academy of Sciences, Institute of Solid State Physics, Chernogolovka, Russia
| | | | - Marina A. Shchedrina
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
| | - Valery V. Tuchin
- Saratov State University, Saratov, Russia
- Russian Academy of Sciences, Institute of Precision Mechanics and Control, Saratov, Russia
- Tomsk State University, Tomsk, Russia
- ITMO University, St. Petersburg, Russia
| | - Kirill I. Zaytsev
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
- Bauman Moscow State Technical University, Moscow, Russia
- Russian Academy of Sciences, Prokhorov General Physics Institute, Moscow, Russia
| | - Vladimir N. Kurlov
- Russian Academy of Sciences, Institute of Solid State Physics, Chernogolovka, Russia
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
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26
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Caramazza P, Moran O, Murray-Smith R, Faccio D. Transmission of natural scene images through a multimode fibre. Nat Commun 2019; 10:2029. [PMID: 31048712 PMCID: PMC6497636 DOI: 10.1038/s41467-019-10057-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Accepted: 04/11/2019] [Indexed: 12/20/2022] Open
Abstract
The optical transport of images through a multimode fibre remains an outstanding challenge with applications ranging from optical communications to neuro-imaging. State of the art approaches either involve measurement and control of the full complex field transmitted through the fibre or, more recently, training of artificial neural networks that however, are typically limited to image classes belong to the same class as the training data set. Here we implement a method that statistically reconstructs the inverse transformation matrix for the fibre. We demonstrate imaging at high frame rates, high resolutions and in full colour of natural scenes, thus demonstrating general-purpose imaging capability. Real-time imaging over long fibre lengths opens alternative routes to exploitation for example for secure communication systems, novel remote imaging devices, quantum state control processing and endoscopy.
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Affiliation(s)
| | - Oisín Moran
- School of Computing Science, University of Glasgow, Glasgow, G12 8QQ, UK
| | | | - Daniele Faccio
- School of Physics and Astronomy, University of Glasgow, Glasgow, G12 8QQ, UK.
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27
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Poxson DJ, Gabrielsson EO, Bonisoli A, Linderhed U, Abrahamsson T, Matthiesen I, Tybrandt K, Berggren M, Simon DT. Capillary-Fiber Based Electrophoretic Delivery Device. ACS APPLIED MATERIALS & INTERFACES 2019; 11:14200-14207. [PMID: 30916937 DOI: 10.1021/acsami.8b22680] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Organic electronic ion pumps (OEIPs) are versatile tools for electrophoretic delivery of substances with high spatiotemporal resolution. To date, OEIPs and similar iontronic components have been fabricated using thin-film techniques and often rely on laborious, multistep photolithographic processes. OEIPs have been demonstrated in a variety of in vitro and in vivo settings for controlling biological systems, but the thin-film form factor and limited repertoire of polyelectrolyte materials and device fabrication techniques unnecessarily constrain the possibilities for miniaturization and extremely localized substance delivery, e.g., the greater range of pharmaceutical compounds, on the scale of a single cell. Here, we demonstrate an entirely new OEIP form factor based on capillary fibers that include hyperbranched polyglycerols (dPGs) as the selective electrophoretic membrane. The dPGs enable electrophoretic channels with a high concentration of fixed charges and well-controlled cross-linking and can be realized using a simple "one-pot" fluidic manufacturing protocol. Selective electrophoretic transport of cations and anions of various sizes is demonstrated, including "large" substances that are difficult to transport with other OEIP technologies. We present a method for tailoring and characterizing the electrophoretic channels' fixed charge concentration in the operational state. Subsequently, we compare the experimental performance of these capillary OEIPs to a computational model and explain unexpected features in the ionic current for the transport and delivery of larger, lower-mobility ionic compounds. From this model, we are able to elucidate several operational and design principles relevant to miniaturized electrophoretic drug delivery technologies in general. Overall, the compactness of the capillary OEIP enables electrophoretic delivery devices with probelike geometries, suitable for a variety of ionic compounds, paving the way for less-invasive implantation into biological systems and for healthcare applications.
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Affiliation(s)
- David J Poxson
- Laboratory of Organic Electronics, Department of Science and Technology , Linköping University , 601 74 Norrköping , Sweden
| | - Erik O Gabrielsson
- Laboratory of Organic Electronics, Department of Science and Technology , Linköping University , 601 74 Norrköping , Sweden
| | - Alberto Bonisoli
- Laboratory of Organic Electronics, Department of Science and Technology , Linköping University , 601 74 Norrköping , Sweden
- Center for Micro-BioRobotics , Istituto Italiano di Tecnologia , 56025 Pontedera , Italy
- BioRobotics Institute , Sant'Anna School of Advanced Studies , 56025 Pontedera , Italy
| | - Ulrika Linderhed
- Laboratory of Organic Electronics, Department of Science and Technology , Linköping University , 601 74 Norrköping , Sweden
- Department of Physics, Chemistry and Biology , Linköping University , 581 83 Linköping , Sweden
- Department of Printed Electronics , RISE Acreo, Research Institutes of Sweden , SE-601 17 Norrköping , Sweden
| | - Tobias Abrahamsson
- Laboratory of Organic Electronics, Department of Science and Technology , Linköping University , 601 74 Norrköping , Sweden
- Department of Physics, Chemistry and Biology , Linköping University , 581 83 Linköping , Sweden
| | - Isabelle Matthiesen
- Laboratory of Organic Electronics, Department of Science and Technology , Linköping University , 601 74 Norrköping , Sweden
| | - Klas Tybrandt
- Laboratory of Organic Electronics, Department of Science and Technology , Linköping University , 601 74 Norrköping , Sweden
| | - Magnus Berggren
- Laboratory of Organic Electronics, Department of Science and Technology , Linköping University , 601 74 Norrköping , Sweden
| | - Daniel T Simon
- Laboratory of Organic Electronics, Department of Science and Technology , Linköping University , 601 74 Norrköping , Sweden
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Zhang YN, Zhou T, Han B, Zhang A, Zhao Y. Optical bio-chemical sensors based on whispering gallery mode resonators. NANOSCALE 2018; 10:13832-13856. [PMID: 30020301 DOI: 10.1039/c8nr03709d] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Whispering gallery mode (WGM) resonators have attracted extensive attention and their unique characteristics have led to some remarkable achievements. In particular, when combined with optical sensing technology, the WGM reonator-based sensor offers the advantages of small size, high sensitivity and a real-time dynamic response. At present, this type of sensor is widely applied in the bio-chemical sensing field. In this paper, we briefly review the sensing principle, the structures and the sensing applications of optical bio-chemical sensors based on the WGM resonator, with particular focuses on their sensing properties and their advantages and disadvantages. In addition, the existing problems and future development trends of WGM resonator-based optical bio-chemical sensors are discussed.
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Affiliation(s)
- Ya-Nan Zhang
- College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China. and State Key Laboratory of Synthetical Automation for Process Industries, Shenyang, 110819, China
| | - Tianmin Zhou
- College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China.
| | - Bo Han
- College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China. and Liaoning Provincial Institute of Measurement, Shenyang 110819, China
| | - Aozhuo Zhang
- College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China.
| | - Yong Zhao
- College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China. and State Key Laboratory of Synthetical Automation for Process Industries, Shenyang, 110819, China
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Pidenko SA, Burmistrova NA, Shuvalov AA, Chibrova AA, Skibina YS, Goryacheva IY. Microstructured optical fiber-based luminescent biosensing: Is there any light at the end of the tunnel? - A review. Anal Chim Acta 2018; 1019:14-24. [DOI: 10.1016/j.aca.2017.12.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 11/30/2017] [Accepted: 12/03/2017] [Indexed: 11/26/2022]
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Pugliese D, Konstantaki M, Konidakis I, Ceci-Ginistrelli E, Boetti NG, Milanese D, Pissadakis S. Bioresorbable optical fiber Bragg gratings. OPTICS LETTERS 2018; 43:671-674. [PMID: 29444050 DOI: 10.1364/ol.43.000671] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 12/27/2017] [Indexed: 06/08/2023]
Abstract
We demonstrate, for the first time, an inscription and wet dissolution study of Bragg gratings in a bioresorbable calcium-phosphate glass optical fiber. Bragg gratings, with average refractive index changes of 5.8×10-4, were inscribed using 193 nm excimer laser radiation. Results on the dissolution of the irradiated fiber in simulated physiological conditions are presented after immersing a tilted Bragg grating in a phosphate buffered saline solution for 56 h; selective chemical etching effects are also reported. The investigations performed pave the way toward the use of such phosphate glass fiber Bragg gratings for the development of soluble photonic sensing probes for the efficient in vivo monitoring of vital mechanical or chemical parameters.
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Ando Y, Sawahata H, Kawano T, Koida K, Numano R. Fiber bundle endomicroscopy with multi-illumination for three-dimensional reflectance image reconstruction. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-4. [PMID: 29453847 DOI: 10.1117/1.jbo.23.2.020502] [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: 09/24/2017] [Accepted: 01/17/2018] [Indexed: 06/08/2023]
Abstract
Bundled fiber optics allow in vivo imaging at deep sites in a body. The intrinsic optical contrast detects detailed structures in blood vessels and organs. We developed a bundled-fiber-coupled endomicroscope, enabling stereoscopic three-dimensional (3-D) reflectance imaging with a multipositional illumination scheme. Two illumination sites were attached to obtain reflectance images with left and right illumination. Depth was estimated by the horizontal disparity between the two images under alternative illuminations and was calibrated by the targets with known depths. This depth reconstruction was applied to an animal model to obtain the 3-D structure of blood vessels of the cerebral cortex (Cereb cortex) and preputial gland (Pre gla). The 3-D endomicroscope could be instrumental to microlevel reflectance imaging, improving the precision in subjective depth perception, spatial orientation, and identification of anatomical structures.
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Affiliation(s)
- Yoriko Ando
- Toyohashi University of Technology, Electronics-Inspired Interdisciplinary Research Institute, Toyoh, Japan
| | - Hirohito Sawahata
- Toyohashi University of Technology, Department of Electrical and Electronic Information Engineering,, Japan
| | - Takeshi Kawano
- Toyohashi University of Technology, Department of Electrical and Electronic Information Engineering,, Japan
| | - Kowa Koida
- Toyohashi University of Technology, Electronics-Inspired Interdisciplinary Research Institute, Toyoh, Japan
- Toyohashi University of Technology, Department of Computer Science and Engineering, Toyohashi, Aichi, Japan
| | - Rika Numano
- Toyohashi University of Technology, Electronics-Inspired Interdisciplinary Research Institute, Toyoh, Japan
- Toyohashi University of Technology, Department of Environmental and Life Science, Toyohashi, Aichi, Japan
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32
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Diaferia C, Sibillano T, Giannini C, Roviello V, Vitagliano L, Morelli G, Accardo A. Photoluminescent Peptide-Based Nanostructures as FRET Donor for Fluorophore Dye. Chemistry 2017; 23:8741-8748. [PMID: 28508550 DOI: 10.1002/chem.201701381] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Indexed: 12/22/2022]
Abstract
A great interest has been recently generated by the discovery that peptide-based nanostructures (NSs) endowed with cross-β structure may show interesting photoluminescent (PL) properties. It was shown that NSs formed by PEGylated hexaphenylalanine (PEG8 -F6, PEG=polyethylene glycol) are able to emit at 460 nm when excited at 370 or 410 nm. Here, the possibility to transfer the fluorescence of these PEG8 -F6-based NSs by foster resonance electron transfer (FRET) phenomenon to a fluorescent dye was explored. To achieve this aim, the 4-chloro-7-nitrobenzofurazan (NBD) dye was encapsulated in these NSs. Structural data in solution and in solid state, obtained by a variety of techniques (circular dichroism, Fourier-transform infrared spectroscopy, wide-angle X-ray scattering, and small-angle X-ray scattering), indicated that the organization of the peptide spine of PEG8 -F6 NS, which consists of anti-parallel β-sheets separated by a dry interface made of interacting phenylalanine side chains, was maintained upon NBD encapsulation. The spectroscopic characterization of these NSs clearly showed a red-shift of the emission fluorescence peak both in solution and in solid state. This shift from 460 to 530 nm indicated that a FRET phenomenon from the peptide-based to the fluorophore-encapsulated NS occurred. FRET could also be detected in the PEG8 -F6 conjugate, in which the NBD was covalently bound to the amine of the compound. On the basis of these results, it is suggested that the red-shift of the intrinsic PL of NSs may be exploited in the bio-imaging field.
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Affiliation(s)
- Carlo Diaferia
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II" and DFM Scarl, Via Mezzocannone 16, 80134, Naples, Italy
| | - Teresa Sibillano
- Institute of Crystallography (IC), CNR, Via Amendola 122, 70126, Bari, Italy
| | - Cinzia Giannini
- Institute of Crystallography (IC), CNR, Via Amendola 122, 70126, Bari, Italy
| | - Valentina Roviello
- Analytical Chemistry for the Environment and CeSMA (Centro Servizi Metereologici Avanzati), University of Naples "Federico II", Corso Nicolangelo Protopisani, 80146, Naples, Italy
| | - Luigi Vitagliano
- Institute of Biostructures and Bioimaging (IBB), CNR, Via Mezzocannone 16, 80134, Naples, Italy
| | - Giancarlo Morelli
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II" and DFM Scarl, Via Mezzocannone 16, 80134, Naples, Italy
| | - Antonella Accardo
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II" and DFM Scarl, Via Mezzocannone 16, 80134, Naples, Italy
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Lu MK, Lin HY, Hsieh CC, Kao FJ. Supercontinuum as a light source for miniaturized endoscopes. BIOMEDICAL OPTICS EXPRESS 2016; 7:3335-3344. [PMID: 27699102 PMCID: PMC5030014 DOI: 10.1364/boe.7.003335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/03/2016] [Accepted: 08/03/2016] [Indexed: 06/06/2023]
Abstract
In this work, we have successfully implemented supercontinuum based illumination through single fiber coupling. The integration of a single fiber illumination with a miniature CMOS sensor forms a very slim and powerful camera module for endoscopic imaging. A set of tests and in vivo animal experiments are conducted accordingly to characterize the corresponding illuminance, spectral profile, intensity distribution, and image quality. The key illumination parameters of the supercontinuum, including color rendering index (CRI: 72%~97%) and correlated color temperature (CCT: 3,100K~5,200K), are modified with external filters and compared with those from a LED light source (CRI~76% & CCT~6,500K). The very high spatial coherence of the supercontinuum allows high luminosity conduction through a single multimode fiber (core size~400μm), whose distal end tip is attached with a diffussion tip to broaden the solid angle of illumination (from less than 10° to more than 80°).
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Affiliation(s)
- M. K. Lu
- Institute of Biophotonics, National Yang-Ming University, Taipei 11221, Taiwan
- Business Solutions Laboratory, Chunghwa Telecom Research Institute, Taoyuan, 32661, Taiwan
| | - H. Y. Lin
- Institute of Biophotonics, National Yang-Ming University, Taipei 11221, Taiwan
| | - C. C. Hsieh
- Division of Thoracic Surgery, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - F. J. Kao
- Institute of Biophotonics, National Yang-Ming University, Taipei 11221, Taiwan
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Al-Fakih EA, Abu Osman NA, Mahmad Adikan FR. Techniques for Interface Stress Measurements within Prosthetic Sockets of Transtibial Amputees: A Review of the Past 50 Years of Research. SENSORS 2016; 16:s16071119. [PMID: 27447646 PMCID: PMC4970162 DOI: 10.3390/s16071119] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/12/2016] [Accepted: 06/02/2016] [Indexed: 11/18/2022]
Abstract
The distribution of interface stresses between the residual limb and prosthetic socket of a transtibial amputee has been considered as a direct indicator of the socket quality fit and comfort. Therefore, researchers have been very interested in quantifying these interface stresses in order to evaluate the extent of any potential damage caused by the socket to the residual limb tissues. During the past 50 years a variety of measurement techniques have been employed in an effort to identify sites of excessive stresses which may lead to skin breakdown, compare stress distributions in various socket designs, and evaluate interface cushioning and suspension systems, among others. The outcomes of such measurement techniques have contributed to improving the design and fitting of transtibial sockets. This article aims to review the operating principles, advantages, and disadvantages of conventional and emerging techniques used for interface stress measurements inside transtibial sockets. It also reviews and discusses the evolution of different socket concepts and interface stress investigations conducted in the past five decades, providing valuable insights into the latest trends in socket designs and the crucial considerations for effective stress measurement tools that lead to a functional prosthetic socket.
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Affiliation(s)
- Ebrahim A Al-Fakih
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Noor Azuan Abu Osman
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Faisal Rafiq Mahmad Adikan
- Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
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35
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Ando Y, Sakurai T, Koida K, Tei H, Hida A, Nakao K, Natsume M, Numano R. In vivo bioluminescence and reflectance imaging of multiple organs in bioluminescence reporter mice by bundled-fiber-coupled microscopy. BIOMEDICAL OPTICS EXPRESS 2016; 7:963-978. [PMID: 27231601 PMCID: PMC4866468 DOI: 10.1364/boe.7.000963] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/15/2016] [Accepted: 02/04/2016] [Indexed: 06/05/2023]
Abstract
Bioluminescence imaging (BLI) is used in biomedical research to monitor biological processes within living organisms. Recently, fiber bundles with high transmittance and density have been developed to detect low light with high resolution. Therefore, we have developed a bundled-fiber-coupled microscope with a highly sensitive cooled-CCD camera that enables the BLI of organs within the mouse body. This is the first report of in vivo BLI of the brain and multiple organs in luciferase-reporter mice using bundled-fiber optics. With reflectance imaging, the structures of blood vessels and organs can be seen clearly with light illumination, and it allowed identification of the structural details of bioluminescence images. This technique can also be applied to clinical diagnostics in a low invasive manner.
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Affiliation(s)
- Yoriko Ando
- Electronics-Inspired Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, Toyohashi, Aichi, 441-8580, Japan
| | - Takashi Sakurai
- Electronics-Inspired Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, Toyohashi, Aichi, 441-8580, Japan
- Juntendo University, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Kowa Koida
- Electronics-Inspired Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, Toyohashi, Aichi, 441-8580, Japan
- Department of Computer Science and Engineering, Toyohashi University of Technology, Toyohashi, Aichi, 441-8580, Japan
| | - Hajime Tei
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa, 920-1192, Japan
| | - Akiko Hida
- Department of Psychophysiology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, 187-8553 Japan
| | - Kazuki Nakao
- Laboratory of Animal Resources, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Developmental Biology, Kobe, Hyogo, 650-0047, Japan
| | - Mistuo Natsume
- Denkosha Co., Ltd., Hamamatsu, Shizuoka, 432-8055, Japan
| | - Rika Numano
- Electronics-Inspired Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, Toyohashi, Aichi, 441-8580, Japan
- Department of Environmental and Life Science, Biological Regulatory Engineering, Toyohashi University of Technology, Toyohashi, Aichi, 441-8580, Japan
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36
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New Trends in Dental Biomechanics with Photonics Technologies. APPLIED SCIENCES-BASEL 2015. [DOI: 10.3390/app5041350] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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37
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Bragazzi NL, Amicizia D, Panatto D, Tramalloni D, Valle I, Gasparini R. Quartz-Crystal Microbalance (QCM) for Public Health: An Overview of Its Applications. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 101:149-211. [PMID: 26572979 DOI: 10.1016/bs.apcsb.2015.08.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nanobiotechnologies, from the convergence of nanotechnology and molecular biology and postgenomics medicine, play a major role in the field of public health. This overview summarizes the potentiality of piezoelectric sensors, and in particular, of quartz-crystal microbalance (QCM), a physical nanogram-sensitive device. QCM enables the rapid, real time, on-site detection of pathogens with an enormous burden in public health, such as influenza and other respiratory viruses, hepatitis B virus (HBV), and drug-resistant bacteria, among others. Further, it allows to detect food allergens, food-borne pathogens, such as Escherichia coli and Salmonella typhimurium, and food chemical contaminants, as well as water-borne microorganisms and environmental contaminants. Moreover, QCM holds promises in early cancer detection and screening of new antiblastic drugs. Applications for monitoring biohazards, for assuring homeland security, and preventing bioterrorism are also discussed.
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Affiliation(s)
- Nicola Luigi Bragazzi
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Daniela Amicizia
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Donatella Panatto
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Daniela Tramalloni
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Ivana Valle
- SSD "Popolazione a rischio," Health Prevention Department, Local Health Unit ASL3 Genovese, Genoa, Italy
| | - Roberto Gasparini
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy.
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Lee SH, Ryu YT, Son DH, Jeong S, Kim Y, Ju S, Kim BH, Han WT. Radial-firing optical fiber tip containing conical-shaped air-pocket for biomedical applications. OPTICS EXPRESS 2015; 23:21254-21263. [PMID: 26367974 DOI: 10.1364/oe.23.021254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report a novel radial-firing optical fiber tip containing a conical-shaped air-pocket fabricated by deforming a hollow optical fiber using electric arc-discharge process. The hollow optical fiber was fusion spliced with a conventional optical fiber, simultaneously deforming into the intagliated conical-shaped region along the longitudinal fiber-axis of the fiber due to the gradual collapse of the cavity of the hollow optical fiber. Then the distal-end of the hollow optical fiber was sealed by the additional arc-discharge in order to obstruct the inflow of an external bio-substance or liquid to the inner air surface during the surgical operations, resulting in the formation of encased air-pocket in the silica glass fiber. Due to the total internal reflection of the laser beam at the conical-shaped air surface, the laser beam (λ = 632.8 nm) was deflected to the circumferential direction up to 87 degree with respect to the fiber-axis.
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Choi M, Humar M, Kim S, Yun SH. Step-Index Optical Fiber Made of Biocompatible Hydrogels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:4081-6. [PMID: 26045317 PMCID: PMC4503511 DOI: 10.1002/adma.201501603] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 05/03/2015] [Indexed: 05/20/2023]
Abstract
A biocompatible step-index optical fiber made of poly(ethylene glycol) and alginate hydrogels is demonstrated. The fabricated fiber exhibits excellent light-guiding efficiency in biological tissues. Moreover, the core of hydrogel fibers can be easily doped with functional molecules and nanoparticles for localized light emission, sensing, and therapy.
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Affiliation(s)
- Myunghwan Choi
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne St, UP-5, Cambridge, Massachusetts 02139, USA; Global Biomedical Engineering, Sungkyunkwan University, Center for Neuroscience and Imaging Research, Institute for Basic Science, 2066, Seobu-ro, Jangan-Gu, Suwon-Si, Gyeong Gi-Do, South Korea
| | - Matjaž Humar
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne St, UP-5, Cambridge, Massachusetts 02139, USA; Condensed Matter Department, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Seonghoon Kim
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne St, UP-5, Cambridge, Massachusetts 02139, USA; Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, 291 Daehak-Ro, Yusong-Gu, Daejon 305-701, Korea
| | - Seok-Hyun Yun
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne St, UP-5, Cambridge, Massachusetts 02139, USA
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Quandt BM, Scherer LJ, Boesel LF, Wolf M, Bona GL, Rossi RM. Body-monitoring and health supervision by means of optical fiber-based sensing systems in medical textiles. Adv Healthc Mater 2015; 4:330-55. [PMID: 25358557 DOI: 10.1002/adhm.201400463] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/24/2014] [Indexed: 11/11/2022]
Abstract
Long-term monitoring with optical fibers has moved into the focus of attention due to the applicability for medical measurements. Within this Review, setups of flexible, unobtrusive body-monitoring systems based on optical fibers and the respective measured vital parameters are in focus. Optical principles are discussed as well as the interaction of light with tissue. Optical fiber-based sensors that are already used in first trials are primarily selected for the section on possible applications. These medical textiles include the supervision of respiration, cardiac output, blood pressure, blood flow and its saturation with hemoglobin as well as oxygen, pressure, shear stress, mobility, gait, temperature, and electrolyte balance. The implementation of these sensor concepts prompts the development of wearable smart textiles. Thus, current sensing techniques and possibilities within photonic textiles are reviewed leading to multiparameter designs. Evaluation of these designs should show the great potential of optical fibers for the introduction into textiles especially due to the benefit of immunity to electromagnetic radiation. Still, further improvement of the signal-to-noise ratio is often necessary to develop a commercial monitoring system.
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Affiliation(s)
- Brit M. Quandt
- Empa-Swiss Federal Laboratories for Materials Science and Technology; Laboratory for Protection and Physiology; Lerchenfeldstrasse 5, 9016 St. Gallen Switzerland
- ETH Zurich, Department of Information Technology and Electrical Engineering; Gloriastrasse 35 8092 Zurich Switzerland
| | | | - Luciano F. Boesel
- Empa-Swiss Federal Laboratories for Materials Science and Technology; Laboratory for Protection and Physiology; Lerchenfeldstrasse 5, 9016 St. Gallen Switzerland
| | - Martin Wolf
- Division of Neonatology; University Hospital Zurich; Frauenklinikstrasse 10 8091 Zurich Switzerland
| | - Gian-Luca Bona
- ETH Zurich, Department of Information Technology and Electrical Engineering; Gloriastrasse 35 8092 Zurich Switzerland
- Empa-Swiss Federal Laboratories for Materials Science and Technology; Überlandstrasse 129 8600 Dübendorf Switzerland
| | - René M. Rossi
- Empa-Swiss Federal Laboratories for Materials Science and Technology; Laboratory for Protection and Physiology; Lerchenfeldstrasse 5, 9016 St. Gallen Switzerland
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