{"title":"Parallel Tapered Optical Fiber Biosensor for Highly Sensitive Detection of Mucin 1","authors":"Chu Chu;Xinyu Yang;Haili Jiang;Xinghua Yang;Minghua Ma;Pingping Teng;Shengjia Wang;Rui Wang;Xingyue Wen;Kang Li;Bo Zhang;Adam Jones;Qianqing Yu","doi":"10.1109/JSEN.2025.3547840","DOIUrl":null,"url":null,"abstract":"We built a reflective parallel tapered optical fiber structure and used it as a biosensor for highly sensitive in situ detection of label-free Mucin 1 (MUC1). A sensing tapered optical fiber probe was prepared, and a reference probe of similar free spectral range (FSR) was connected in parallel to establish the optical Vernier effect. This arrangement amplified the refractive index (RI) sensitivity to 8.4 times that of a single sensing probe with 19845.22 nm/RIU. Meanwhile, the aptamer was chemically bonded to the surface of sensing probe to specifically detect MUC1. This biosensor has a linear wide detection range from <inline-formula> <tex-math>$10^{-{10}}$ </tex-math></inline-formula> to <inline-formula> <tex-math>$10^{-{1}}$ </tex-math></inline-formula> mg/mL, with a high sensitivity of 12.56 nm/log(C/C0) and a low limit of detection (LOD) of 0.012 pg/mL. Significantly, the reflective structures, unlike transmissive ones, could be inserted into samples rather than requiring samples to be moved to the sensing area, which not only reduces the contamination of samples during movement but also enables the measurement of trace samples that cannot be transferred. Furthermore, this novel sensing structure with high sensitivity holds promise for the preliminary diagnosis and prognostic monitoring of cancer and has broad development prospects in clinical and therapeutic applications.","PeriodicalId":447,"journal":{"name":"IEEE Sensors Journal","volume":"25 8","pages":"13027-13032"},"PeriodicalIF":4.3000,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Sensors Journal","FirstCategoryId":"103","ListUrlMain":"https://ieeexplore.ieee.org/document/10919022/","RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
We built a reflective parallel tapered optical fiber structure and used it as a biosensor for highly sensitive in situ detection of label-free Mucin 1 (MUC1). A sensing tapered optical fiber probe was prepared, and a reference probe of similar free spectral range (FSR) was connected in parallel to establish the optical Vernier effect. This arrangement amplified the refractive index (RI) sensitivity to 8.4 times that of a single sensing probe with 19845.22 nm/RIU. Meanwhile, the aptamer was chemically bonded to the surface of sensing probe to specifically detect MUC1. This biosensor has a linear wide detection range from $10^{-{10}}$ to $10^{-{1}}$ mg/mL, with a high sensitivity of 12.56 nm/log(C/C0) and a low limit of detection (LOD) of 0.012 pg/mL. Significantly, the reflective structures, unlike transmissive ones, could be inserted into samples rather than requiring samples to be moved to the sensing area, which not only reduces the contamination of samples during movement but also enables the measurement of trace samples that cannot be transferred. Furthermore, this novel sensing structure with high sensitivity holds promise for the preliminary diagnosis and prognostic monitoring of cancer and has broad development prospects in clinical and therapeutic applications.
期刊介绍:
The fields of interest of the IEEE Sensors Journal are the theory, design , fabrication, manufacturing and applications of devices for sensing and transducing physical, chemical and biological phenomena, with emphasis on the electronics and physics aspect of sensors and integrated sensors-actuators. IEEE Sensors Journal deals with the following:
-Sensor Phenomenology, Modelling, and Evaluation
-Sensor Materials, Processing, and Fabrication
-Chemical and Gas Sensors
-Microfluidics and Biosensors
-Optical Sensors
-Physical Sensors: Temperature, Mechanical, Magnetic, and others
-Acoustic and Ultrasonic Sensors
-Sensor Packaging
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-Sensor Systems: Signals, Processing, and Interfaces
-Actuators and Sensor Power Systems
-Sensor Signal Processing for high precision and stability (amplification, filtering, linearization, modulation/demodulation) and under harsh conditions (EMC, radiation, humidity, temperature); energy consumption/harvesting
-Sensor Data Processing (soft computing with sensor data, e.g., pattern recognition, machine learning, evolutionary computation; sensor data fusion, processing of wave e.g., electromagnetic and acoustic; and non-wave, e.g., chemical, gravity, particle, thermal, radiative and non-radiative sensor data, detection, estimation and classification based on sensor data)
-Sensors in Industrial Practice