A5027421912- Advanced Fiber Optic Sensors
- Plasmonic and Surface Plasmon Research
- Advanced biosensing and bioanalysis techniques
- Photonic and Optical Devices
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanomaterials and Printing Technologies
- Gas Sensing Nanomaterials and Sensors
- Inertial Sensor and Navigation
- Advanced Biosensing Techniques and Applications
- Adaptive optics and wavefront sensing
- Biosensors and Analytical Detection
- Electrowetting and Microfluidic Technologies
- Spacecraft Design and Technology
- Advanced optical system design
- Astronomical Observations and Instrumentation
- Spectroscopy and Laser Applications
- Photonic Crystal and Fiber Optics
- Photonic Crystals and Applications
- Advanced Sensor and Energy Harvesting Materials
- Geophysics and Sensor Technology
- Proteoglycans and glycosaminoglycans research
- Platelet Disorders and Treatments
- Monoclonal and Polyclonal Antibodies Research
Dalian University
2017-2024
Dalian University of Technology
2016-2024
As a highly toxic heavy metal ion, divalent mercuric ion (Hg2+) is one of the most widely diffused and hazardous environmental pollutants. In this work, simple, portable, inexpensive fiber-optic sensor based on surface plasmon resonance (SPR) effect was developed for Hg2+ detection, which takes advantage 4-mercaptopyridine (4-MPY)-functionalized Au nanoparticles (Au NPs/4-MPY) as signal amplification tag. Based coordination between nitrogen in pyridine moiety, we by self-assembling 4-MPY...
Abstract Localized surface plasmon resonance (LSPR) biosensors, which enable nanoscale confinement and manipulation of light, offer the enhanced sensitivity electromagnetic energy localization. The integration LSPR with fiber-optic technology has led to development compact versatile sensors for miniaturization remote sensing. This comprehensive review explores various sensor configurations, fiber types, geometric shapes, highlighting their benefits in terms sensitivity, integration,...
We present a dual-resonance fiber surface plasmon resonance (SPR) sensor for biological analysis. The sensing element was fabricated by sequentially sputtering layers of indium tin oxide (ITO) (100 nm thickness) and Au (35 on the an optical fiber. refractive index dispersion effect ITO material led to resonances in near infrared visible wavelength regions. is larger than spectral area (400 733nm), such that structure typical Kretschmann configuration sensor. However, Otto observed (NIR) due...
Abstract As an emerging and promising paradigm of nanophotonic “lab‐on‐a‐chip” devices, plasmonic fiber‐optic (FO) probes with nanopatterns suffer from high cost a complex fabrication process, which keep them becoming the preferred choice for most optical fiber sensing applications. In this paper, nanopatterned FO probe is demonstrated to be surface‐enhanced Raman spectroscopy substrate biosensor through theoretical simulations experiments. The assembled imprinted nanocavities on tip...
We investigate an intensity and wavelength modulation combined plasmon resonance-based fiber-optic sensor technology. Composed of gold nanoparticles (GNPs) sandwich configuration Au/indium tin oxide (ITO)/Au film, two sensing regions are fabricated separately along with unclad portions the probe. It can simultaneously monitor both light from Au NP channel Au/ITO/Au film a single detector. As refractive index (RI) external environment changes, transmission resonance in channels modified,...
Liquid interfacial self-assembled two-dimensional nanomonolayers are promising as colloidal crystal templates or lithographic masks for the mass production of periodic nanoarrays. However, monolayers usually suffer various defects such grain boundaries, line defects, vacancy and multilayers due to imperfect process technology. Here, we demonstrated a series optimized strategies including hemispherical-depression-assisted self-assembly, dot coating approach, vertical lifting transfer protocol...
Abstract Since the discovery of extraordinary optical transmission phenomenon, nanohole arrays have attracted much attention and been widely applied in sensing. However, their typical fabrication process, utilizing photolithographic top-down manufacturing technologies, has intrinsic drawbacks including high costs, time consumption, small footprint, low throughput. This study presented a low-cost, high-throughput, scalable method for fabricating centimeter-scale (1×2 cm 2 ) using improved...
Because relative humidity is an important indicator to evaluate the environment quality of production and daily life, sensors have been widely used in various fields. In this work, we proposed a high-sensitivity evanescent field sensor based on micro-capillary graphene oxide (GO) film. The capillary wall was coated by GO sheets for 1, 3 5 cycles, interaction between experimentally theoretically investigated. We tested performance with range 30%RH-70%RH at 25°C. experimental results show that...
Kinetics analysis of specific interactions proteins is important for elucidating the molecular mechanism and cellular process. In this work, we demonstrated a portable sensor based on fiber-optic (FO) surface plasmon resonance (SPR) sensing elements which can be used to detect kinetics protein-protein interaction. The was built by FO-SPR elements, an optical fiber, red light-emitting diode (LED) detection platform smartphone. We set reference channel control compensate fluctuations LED...
We demonstrated a fiber optic localized surface plasmon resonance (FO-LSPR) biosensor based on smartphone platform. By immobilizing gold nanoparticles (GNPs) an unclad portion of optical probe, we developed kind LSPR sensor GNPs. Transmission intensity variation at the end face FO-LSPR was monitored in real time using smartphone. The prototype provide linear response with 3.8×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-5</sup> RIU...
Volatile organic compound (VOC) is one of the most widely spread and hazardous environmental pollutants. In this work, a VOC vapor optical fiber sensor proposed demonstrated based on multilayer interference diffraction Morpho Didius butterfly wing scales. The sensing fabricated sheathed end probe with sleeve, while element could be easily renewed by replacing sleeve part. It found that reflectance spectrum wings changes varied vapors. By tracing spectral changes, categories concentrations...
We present a localized surface plasmon resonance fiber optic biosensor based on an intensity interrogation mechanism. A layer of gold nano sphere is deposited sensor probe which works as the sensing element and immobilized sidewall unclad optical via two different immobilization methods (amino silane method by self-assembly method). Different layers were also respectively investigated using to explore optimum number. Experimental results reveal that PDDA/PSS/PAH provides best LSPR response....