4.7 Review

Advances in Fiber Optic DNA-Based Sensors: A Review

Journal

IEEE SENSORS JOURNAL
Volume 21, Issue 11, Pages 12679-12691

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2020.3011738

Keywords

Optical fiber sensors; DNA; Biosensors; Optical fibers; Sensitivity; Biosensors; DNA based sensors; nanostructured materials; optical fiber sensors

Funding

  1. Spanish Agencia Estatal de Investigacion (AEI) [PID2019-106231RB-I00]
  2. Public University of Navarra [PJUPNA26]
  3. ATTRACT Call - European Union [777222]

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DNA is playing an increasingly important role in the field of optical fiber sensors, serving as both a biosensing tool and a detection target. This review highlights recent advancements in utilizing natural and synthetic DNA receptors for detection, while analyzing parameters such as sensitivity, detection range, and limit of detection to compare different technologies and explore future research directions in fiber optic DNA-based sensors.
DNA is becoming increasingly important in the domain of optical fiber sensors, either as a tool for biosensing, or as a target to detect. In this review the main contributions of the last years are presented both in the domain of wavelength and intensity based configurations. This review comprises the use of natural single strand DNA (ssDNA) sequences as receptors for the detection of ssDNA sequences through hybridization, synthetic nucleic acids receptors for detection of complementary ssDNA sequences, and sensors based on natural and synthetic ssDNA receptors used for the detection of non-DNA targets. Parameters such as sensitivity, detection range and limit of detection are analyzed and discussed in detail to the purpose of comparing the different technologies and knowing the future lines to follow in the domain of fiber optic DNA-based sensors.

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