Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
In this Letter, an in-fiber dual-channel surface plasmon resonance (SPR) sensor is reported that uses polydimethylsiloxane (PDMS)-filled C-type microstructured optical fiber (COF). The COF is made of HF-acid-etched single-sided hole optical fiber (SSHF), and its inner and outer sides are coated with gold film to stimulate SPR. The inner channel is filled with PDMS and acts as the temperature measurement channel, and the outer channel is directly in contact with the salt solution and acts as the salinity measurement channel. Experiments show that the sensor is qualified to detect salinity and temperature simultaneously, and it exhibits a salinity sensitivity of 0.296 nm/‰ in the salinity range of 0-153.32‰ and a high temperature sensitivity of -2.4 nm/°C in the temperature range of 22-44°C. Furthermore, the sensor also enjoys good hysteresis, repeatability, and reversibility in salinity detection. In a word, the high sensitivity, simple preparation, and good integration of the proposed sensor endow it with the potential for deep-sea exploration.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OL.480724 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Gold nanoparticles-enhanced hollow fiber surface plasmon resonance sensor for highly sensitive detection of mercury(II) ions.
Analyst
September 2025
School of Information Science and Technology, Fudan University, 220 Handan Rd, Shanghai 200433, China.
Mercury(II) ions (Hg) are one of the most common and highly toxic heavy metal ions, which can contaminate the environment and damage the human health. Therefore, the precise detection of trace Hg concentration is particularly important. Herein, gold nanoparticles-enhanced silver-coated hollow fiber (HF) surface plasmon resonance (SPR) sensor was developed for the highly sensitive detection of Hg ions.
View Article and Find Full Text PDFGraphene-Enhanced Plasmonic Interfaces: A General Strategy for Highly Sensitive Detection of Biomolecular Interactions.
Adv Healthc Mater
September 2025
Faculty of Computer Sciences and Microsystems Technology, Kaiserslautern University of Applied Sciences, Amerikastr. 1, 66482, Zweibrücken, Germany.
The detection of cells and viruses is essential for research and clinical applications, creating a demand for high-performance biosensors. Surface plasmon resonance (SPR) enables label-free, real-time detection and is highly promising for healthcare, including point-of-care diagnostics. However, its performance is often limited in complex biological systems.
View Article and Find Full Text PDFHigh-sensitivity coreless fiber surface plasmon resonance refractive index sensor based on Au/TiO2.
Nanotechnology
September 2025
Northeastern University, northeastern university college of sciences, Shenyang, 110819, CHINA.
Fiber optic surface plasmon resonance sensor (SPR) play an important role in various fields where highly sensitive sensors are suitable. In this paper, we propose an SPR refractive index sensor composed of multi-mode fiber-coreless fiber-multimode fiber (MCM) structure modified by Au/TiO2 nanofiber material. The experimental results show that the sensitivity of the TiO2 nanofiber/Au structure sensor is 3687.
View Article and Find Full Text PDFA sensitive photoelectrochemical aptasensor based on Bi/BiMoO-modified phosphorus-doped ultrathin g-CN formed Z-scheme heterojunction for tetracycline detection.
Talanta
August 2025
School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory of Optoelectronic Materials and Sensor Components, School of Economics and Statistics, Guangzhou Key Laboratory of Sensing Materials & Devices, Centre for Advanced Analytical Science, Guangzhou University, Guangzhou, 5
Tetracycline (TC) is a common antibiotic with broad antibacterial activity, yet its excessive abuse will leave antibiotic residues in animal-derived food, posing some threats to human health. Therefore, developing a simple and effective technology for TC trace analysis is immediately important for food safety. Herein, the sensitive PEC aptasensor within Z-scheme heterojunction, based on Bi/BiMoO and P-doped ultrathin porous g-CN (PCN), was constructed by elemental doping strategy, hydrothermal method and surface plasmon resonance (SPR) effect.
View Article and Find Full Text PDFA Robust Immobilization Method for Membrane Protein SPR Assays Using SpyCatcher-SpyTag.
Anal Chem
August 2025
High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230032, Anhui, P. R. China.
Membrane proteins are essential for numerous biological processes and constitute a significant portion of drug targets, making the study of their interactions with ligands crucial for drug discovery. Surface plasmon resonance (SPR) is a powerful, label-free technique for real-time biomolecular interaction analysis, but its application to membrane proteins is limited by inherent difficulties in immobilizing these proteins on sensor surfaces while preserving their native conformation and functionality. Lipid nanodiscs offer a promising solution by providing a native-like membrane environment.
View Article and Find Full Text PDF