New Progress in Optical Fiber-Based Biosensors—2nd Edition
A special issue of Biosensors (ISSN 2079-6374). This special issue belongs to the section "Optical and Photonic Biosensors".
Deadline for manuscript submissions: 25 April 2025 | Viewed by 921
Special Issue Editors
Interests: optical fiber sensors; fiber Bragg gratings; polymer optical fibers; instrumented insoles; interferometers; movement analysis; actuators; robotic systems; IoT; data processing; machine learning algorithms
Special Issues, Collections and Topics in MDPI journals
Interests: fiber Bragg gratings; fiber-optic biosensors; fiber-optic chemical sensors; in-fiber interferometers; Instrumentation; optical fiber sensors; POF-based sensors; rehabilitation robotics; structural health monitoring; surface Plasmon resonance
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Optical fiber biosensors are a promising technology that merge photonics and biotechnology, utilizing the principles of light propagation (phase, amplitude, frequency, light polarization) in optical fibers for sensing applications. These sensors are valued for their high specificity and sensitivity, real-time and in situ detection, miniaturization potential, and multiplexing capabilities. They can measure a wide range of physical, chemical, and biological parameters and have seen rapid advancements and growing applications in areas like medical diagnostics, environmental monitoring, food safety, drug discovery and development, and biotechnology and research.
In these sensors, the optical beam is transmitted through the optical fiber, which responds to external stimuli, detecting biological molecules or interactions by integrating biological recognition elements such as enzymes, antibodies, DNA, or aptamers that selectively bind to the target analyte (e.g., proteins, pathogens, toxins). The conversion of the biological interaction into a measurable optical signal is performed by fluorescence, luminescence absorbance, or refractive index changes, leading to Label-Based Biosensors, which require a fluorescent or colorimetric label to attach to the target analyte to produce an optical signal proportional to the analyte concentration, and Label-Free Biosensors, which measure changes in optical properties without needing to label the target analyte.
Despite the significant advantages of optical biosensors, there are several challenges in terms of the cost, stability, scalability, repeatability, and performance of the sensor due to the degradation of the biorecognition elements over time, especially under harsh environmental conditions. Additionally, the development of highly specific and reliable sensors for complex biological samples remains a challenge. In the future, optical biosensors integrated with lab-on-a-chip technologies and microfluidic systems will lead to more compact, portable, and cost-effective devices, with the detection of multiple analytes revolutionizing point-of-care diagnostics and personalized medicine.
In this context, it is a pleasure to announce the second edition of the Special Issue titled “New Progress in Optical Fiber-Based Biosensors”. All authors are cordially invited to submit original research and reviews of new fabrication processes, materials, transducing devices, and immobilization methods for optical biosensors. We hope that this Special Issue will further encourage and promote scientific contributions by researchers in the field of biosensors.
This Special Issue welcomes contributions addressing, but not limited to, the following:
- Novel interrogation methods for biosensors;
- Surface plasmon (SPR) and localized resonance (LSPR) for biosensing;
- Biosensors for healthcare applications;
- Biosensors for aquaculture and environment monitoring;
- Wearable sensors, devices, and electronics;
- Lab-on-a-chip;
- Sensor devices, technology, and applications;
- Advanced materials for sensing;
- Nanophotonics.
Prof. Dr. Arnaldo Leal-Junior
Dr. Camilo A.R. Díaz
Guest Editors
Manuscript Submission Information
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Keywords
- optical fiber biosensors
- surface plasmon resonance (SPR)
- localized surface plasmon resonance (LSPR)
- evanescent field
- grating-based sensors
- interferometer-based sensors
- point-of-care sensors
- nanophotonics
- surface-enhanced Raman scattering (SERS)
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