Ultrasensitive label-free optical fiber biosensor by evanescent wave coupled oscillation (Conference Presentation)

2019 ◽  
Author(s):  
Yihui Wu
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Label Free

Label-free optical biosensor based on a dual-core microstructured polymer optical fiber

Optik ◽  
2015 ◽  
Vol 126 (21) ◽  
pp. 2930-2933 ◽  
Author(s):  
Nai-Fei Ren ◽  
Bing Sun ◽  
Ming-Yang Chen
Keyword(s):  
Optical Fiber ◽  
Optical Biosensor ◽  
Label Free ◽  
Polymer Optical Fiber ◽  
Dual Core

scholarly journals Immunosensor Based on Long-Period Fiber Gratings for Detection of Viruses Causing Gastroenteritis

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 813 ◽  
Author(s):  
Marta Janczuk-Richter ◽  
Beata Gromadzka ◽  
Łukasz Richter ◽  
Mirosława Panasiuk ◽  
Karolina Zimmer ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Medical Diagnostics ◽  
Label Free ◽  
Fiber Gratings ◽  
Fast Detection ◽  
Long Period ◽  
Highly Sensitive ◽  
Protein Receptors ◽  
Long Period Fiber Gratings ◽  
Vaccine Testing

Since the norovirus is the main cause of acute gastroenteritis all over the world, its fast detection is crucial in medical diagnostics. In this work, a rapid, sensitive, and selective optical fiber biosensor for the detection of norovirus virus-like particles (VLPs) is reported. The sensor is based on highly sensitive long-period fiber gratings (LPFGs) coated with antibodies against the main coat protein of the norovirus. Several modification methods were verified to obtain reliable immobilization of protein receptors on the LPFG surface. We were able to detect 1 ng/mL norovirus VLPs in a 40-min assay in a label-free manner. Thanks to the application of an optical fiber as the sensor, there is a possibility to increase the user’s safety by separating the measurement point from the signal processing setup. Moreover, our sensor is small and light, and the proposed assay is straightforward. The designed LPFG-based biosensor could be applied in both fast norovirus detection and in vaccine testing.

scholarly journals Tapered Optical Fiber Sensor for Label-Free Detection of Biomolecules

Sensors ◽  
2011 ◽  
Vol 11 (4) ◽  
pp. 3780-3790 ◽  
Author(s):  
Ye Tian ◽  
Wenhui Wang ◽  
Nan Wu ◽  
Xiaotian Zou ◽  
Xingwei Wang
Keyword(s):  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Label Free ◽  
Label Free Detection ◽  
Tapered Optical Fiber ◽  
Detection Of Biomolecules

Research Advancements in Optical Fiber Evanescent Wave Biochemical Sensing

2021 ◽  
Vol 58 (3) ◽  
pp. 0300005-30000571
Author(s):  
赵旭东 Zhao Xudong ◽  
许银生 Xu Yinsheng ◽  
章向华 Zhang Xianghua ◽  
赵修建 Zhao Xiujian
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Biochemical Sensing

Plastic Optical Fiber Sensor for Detection of Ethanol Concentrations

2020 ◽  
Vol 307 ◽  
pp. 84-89
Author(s):  
Aisyah Hanim Surani ◽  
Affa Rozana Abdul Rashid ◽  
N. Arsad ◽  
Amna Afiqah Nasution Hakim
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Optical Fiber Sensor ◽  
High Sensitivity ◽  
Deionized Water ◽  
Plastic Optical Fiber ◽  
Polymer Optical Fiber ◽  
Ethanol Sensor ◽  
Output Ratio ◽  
Higher Sensitivity

An optimized study of tapered polymer optical fiber (POF) for measurement of different concentration of ethanol in deionized water (0.5%-3.5%) is proposed and demonstrated. This sensor operated based on evanescent wave absorption principle. The cladding of PMMA based POF is removed using organic solvents which can be used to create tapered POF. The unclad length around 1 cm and 3 cm as well as the waist diameters of POF in the range of 5 mm and 8 mm were compared for their efficiency as an ethanol sensor based on power output ratio values. Tapered POF with smaller waist diameter and longer tapered length showed higher sensitivity as ethanol sensor. Therefore, by tailoring the length and tapered diameter of POF, high sensitivity of ethanol sensor can be fabricated.

VOCs Detection Based on Evanescent Wave Coupling of Dye-Coated Optical Fiber

2015 ◽  
Vol 15 (5) ◽  
pp. 3021-3025 ◽  
Author(s):  
Se-Hyuk Yeom ◽  
Byoung-Ho Kang ◽  
Chang-Taek Seo ◽  
Dong-Ic Lee ◽  
Han-Jae Shin ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Wave Coupling

Label-free detection of biomolecules using a tapered optical fiber sensor

2010 ◽  
Author(s):  
Ye Tian ◽  
Wenhui Wang ◽  
Armand Chery, Jr. ◽  
Nan Wu ◽  
Charles Guthy ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Label Free ◽  
Label Free Detection ◽  
Tapered Optical Fiber ◽  
Detection Of Biomolecules
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