Optical Fiber Biochemical and Environmental Sensors

A special issue of Biosensors (ISSN 2079-6374). This special issue belongs to the section "Optical and Photonic Biosensors".

Deadline for manuscript submissions: 28 February 2026 | Viewed by 20

Special Issue Editors

School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
Interests: giber-optic-based biosensor; isothemal nucleic acid amplification; nanomaterials; aptamer; public health; environmental monitoring; clinic diagnosis; food safety
Special Issues, Collections and Topics in MDPI journals
National Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology, School of Physics and Optoelectronic Engineering, Anhui University, Hefei 230601, China
Interests: optical fiber biochemical sensors; environmental monitoring; LSPR; interfacial enhancement; lab on/in fiber; exosomes; optical fiber multiplexed sensing technology; novel gas sensing mechanism
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Due to the merits of low cost, immunity to electromagnetic fields, and high-sensitivity properties, optical biochemical sensors have attracted significant attention in various fields, such as biomedical diagnosis, environmental monitoring and food-safety inspection. Developing more novel and high-quality optical fiber biochemical and environmental sensors can contribute to advancing industrialization in this domain.

This Special Issue will showcase short communications, research papers, and review articles that discuss the latest progress in optical fiber biochemical and environmental sensing and welcomes submissions from multiple disciplines, including the latest research results for optical sensing devices, especially fiber-optic sensors, new material for biochemical and environmental sensing applications, and new functionalized methods and sensing applications.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Fiber-optic chemical and biological sensors;
  • New optical fiber structures and materials for biochemical and environmental sensing;
  • Optofluidic optical fiber biochemical and environmental sensors;
  • Optical integrated chip or optical fiber waveguide sensors;
  • New signal processing techniques;
  • New functionalized methods;
  • New biochemical and environmental sensor strategies;
  • New biochemical and environmental sensing applications;

We look forward to receiving your contributions.

Dr. Zewei Luo
Dr. Hongtao Li
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Biosensors is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • fiber optic
  • microfiber
  • LSPR
  • gold nanoparticles
  • environmental monitoring
  • biochemical sensors
  • environmental sensors
  • sensing strategy
  • sensing applications
  • sensing materials

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Published Papers (1 paper)

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Research

14 pages, 4266 KiB  
Article
One-Step Labeling Based on Eu-MOFs to Develop Fluorescence Side-Flow Immunoassay for AFB1 Detection in Corn
by Yinjun Li, Hua Ding, Ziyu Wang, Zewei Luo and Xitian Peng
Biosensors 2025, 15(5), 313; https://doi.org/10.3390/bios15050313 - 14 May 2025
Abstract
Lateral flow immunoassay (LFIA) is a promising tool for rapid detection in the field of agricultural product analysis due to its advantages of cost-effectiveness and operational simplicity. In this work, Eu metal–organic frameworks (MOFs) were introduced to LFIA as a rapid detection method [...] Read more.
Lateral flow immunoassay (LFIA) is a promising tool for rapid detection in the field of agricultural product analysis due to its advantages of cost-effectiveness and operational simplicity. In this work, Eu metal–organic frameworks (MOFs) were introduced to LFIA as a rapid detection method characterized by high stability and low interference. Key research objectives included strong fluorescence, ease of labeling, and the utilization of fluorescent probes. Eu-MOFs were synthesized in one step via the hydrothermal method, exhibiting a fluorescence lifetime of 163 μs and spherical particles with diameters ranging from 250 to 400 nm. These conditions fulfill the characteristics and requirements of LFIA. Eu-MOFs exploit the porous nature of MOFs to mitigate the drawbacks associated with complex crosslinking agents. This enables antibody proteins to be cross-linked merely upon contact, thereby simplifying the detection process. A time-resolved LFIA method was developed utilizing Eu-MOFs for the detection of aflatoxin B1 (AFB1) in corn, achieving a limit of detection (LOD, IC10) of 0.149 ng/mL. The accuracy and reliability of the Eu-MOFs-LFIA method were validated through comparisons with spiked concentrations during spiking and blind sample analyses, with verification conducted using ultra-high-performance liquid chromatography mass spectrometry (UPLC-MS). Furthermore, testing of real samples demonstrated that the Eu-MOFs-LFIA method can effectively facilitate rapid detection of AFB1 in corn. Full article
(This article belongs to the Special Issue Optical Fiber Biochemical and Environmental Sensors)
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