A fiber-optic sensor for neurotransmitters with ultralow concentration: near-infrared plasmonic electromagnetic field enhancement using raspberry-like meso-SiO2 nanospheres

Nanoscale ◽  
2017 ◽  
Vol 9 (39) ◽  
pp. 14929-14936 ◽  
Author(s):  
Yunyun Huang ◽  
Mingfei Ding ◽  
Tuan Guo ◽  
Dejiao Hu ◽  
Yaoyu Cao ◽  
...  
Keyword(s):  
Localized Surface Plasmon Resonance ◽  
Near Infrared ◽  
Fiber Optic ◽  
Field Enhancement ◽  
Fiber Optic Sensor ◽  
Localized Surface Plasmon ◽  
Optic Sensor ◽  
Ultralow Concentration ◽  
Resonance Enhancement ◽  
Infrared Wavelengths

A localized surface plasmon resonance enhancement at near infrared wavelengths has been achieved by constructing raspberry-like meso-SiO2 nanospheres.

scholarly journals Label-free detection of DNA hybridization with a compact LSPR-based fiber-optic sensor

The Analyst ◽  
2017 ◽  
Vol 142 (11) ◽  
pp. 1974-1981 ◽  
Author(s):  
Savannah Kaye ◽  
Zheng Zeng ◽  
Mollye Sanders ◽  
Krishnan Chittur ◽  
Paula M. Koelle ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Dna Hybridization ◽  
Localized Surface Plasmon Resonance ◽  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Localized Surface Plasmon ◽  
Label Free ◽  
Optic Sensor ◽  
Label Free Detection

A miniaturized, robust, localized surface plasmon resonance (LSPR)–coupled fiber-optic (FO) nanoprobe providing an integrated and portable solution for detection of DNA hybridization and measurement of DNA concentrations has been demonstrated.

In Vivo Pressure and Temperature Monitoring during Near Infrared Photo-Immunotherapy Using a Fiber Optic Sensor

2015 ◽  
Author(s):  
Zhijian Zhang ◽  
Hyungdae Bae ◽  
Tadanobu Nagaya ◽  
Yuko Nakamura ◽  
Peter Choyke ◽  
...  
Keyword(s):  
Near Infrared ◽  
Fiber Optic ◽  
Temperature Monitoring ◽  
Fiber Optic Sensor ◽  
Optic Sensor

Evanescent Field Absorption Based Fiber Optic Sensor Using Chalcogenide Glasses for Biological Tissues Detection

2020 ◽  
Vol 18 (2) ◽  
pp. 95-100
Author(s):  
Adarsh Chandra Mishra ◽  
Pravin Kumar Singh ◽  
Pooja Lohia ◽  
D. K. Dwivedi
Keyword(s):  
Chalcogenide Glasses ◽  
Near Infrared ◽  
Fiber Optic ◽  
High Sensitivity ◽  
Normal Liver ◽  
Biological Tissues ◽  
Evanescent Field ◽  
Fiber Optic Sensor ◽  
Core Diameter ◽  
Optic Sensor

An evanescent field based fiber optic sensor is proposed using ternary chalcogenide glasses under diffuse source illumination for straight fiber for detection of biological tissues. The field distribution within the core region and evanescent field beyond it has been shown pictorially. The simulation is performed in near infrared region for three liver tissues, normal liver tissue (N), Non-cancerous metastatic tissue (NMET) and non-cancerous hepatocellular carcinoma tissue (NHCC). Interrogation of absorption coefficient and transmitted power has been performed. The effect of variation in core diameter and wavelength on sensitivity of the samples have been studied to have high sensitivity.

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