scholarly journals Development of Reflection-type Fiber-optic pH Sensor Using Sol-gel Film

2011 ◽  
Vol 20 (4) ◽  
pp. 266-271 ◽  
Author(s):  
Wook-Jae Yoo ◽  
Jeong-Ki Seo ◽  
Kyoung-Won Jang ◽  
Jin-Soo Moon ◽  
Ki-Tek Han ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Sol Gel ◽  
Ph Sensor ◽  
Gel Film ◽  
Type Fiber

A Fiber Optic pH Sensor with 1-(2-Pyridylazo)-2-Naphthol Doped in Silica Sol–Gel Film

2009 ◽  
Vol 7 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Mir Azam Khan ◽  
Seikh Mafiz Alam ◽  
Saikh Mohammad Wabaidur ◽  
Sang Hak Lee ◽  
Yeoun Suk Suh ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Sol Gel ◽  
Ph Sensor ◽  
Silica Sol ◽  
Gel Film

scholarly journals High-Sensitive Fiber-Optic pH Sensor Using Neutral Red Immobilized in Porous Sol-Gel Film

2012 ◽  
Vol 21 (3) ◽  
pp. 223-228 ◽  
Author(s):  
Da-Yeong Jeon ◽  
Wook-Jae Yoo ◽  
Sang-Hun Shin ◽  
Ki-Tek Han ◽  
Jang-Yeon Park ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Sol Gel ◽  
Ph Sensor ◽  
Neutral Red ◽  
Gel Film

Fiber-optic pH sensor based on sol-gel film immobilized with neutral red

2013 ◽  
Vol 20 (2) ◽  
pp. 209-213 ◽  
Author(s):  
Dayeong Jeon ◽  
Wook Jae Yoo ◽  
Jeong Ki Seo ◽  
Sang Hun Shin ◽  
Ki-Tek Han ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Sol Gel ◽  
Ph Sensor ◽  
Neutral Red ◽  
Gel Film

scholarly journals Ex-Vivo Measurement of the pH in Aqueous Humor Samples by a Tapered Fiber-Optic Sensor

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 5075
Author(s):  
Ondřej Podrazký ◽  
Jan Mrázek ◽  
Jana Proboštová ◽  
Soňa Vytykáčová ◽  
Ivan Kašík ◽  
...  
Keyword(s):  
Cataract Surgery ◽  
Aqueous Humor ◽  
Fiber Optic ◽  
Ex Vivo ◽  
Sol Gel ◽  
Ph Sensor ◽  
Fiber Optic Sensor ◽  
Optic Sensor ◽  
Tapered Optical Fiber ◽  
Practical Demonstration

A practical demonstration of pH measurement in real biological samples with an in-house developed fiber-optic pH sensor system is presented. The sensor uses 8-hydroxypyrene-1,3,6-trisulfonate (HPTS) fluorescent dye as the opto-chemical transducer. The dye is immobilized in a hybrid sol-gel matrix at the tip of a tapered optical fiber. We used 405 nm and 450 nm laser diodes for the dye excitation and a photomultiplier tube as a detector. The sensor was used for the measurement of pH in human aqueous humor samples during cataract surgery. Two groups of patients were tested, one underwent conventional phacoemulsification removal of the lens while the other was subjected to femtosecond laser assisted cataract surgery (FLACS). The precision of the measurement was ±0.04 pH units. The average pH of the aqueous humor of patients subjected to FLACS and those subjected to phacoemulsification were 7.24 ± 0.17 and 7.31 ± 0.20 respectively.

A luminescent pH sensor based on a sol–gel film functionalized with a luminescent organometallic complex

2000 ◽  
Vol 10 (8) ◽  
pp. 1825-1828 ◽  
Author(s):  
Michael H. W. Lam ◽  
Derek Y. K. Lee ◽  
K. W. Man ◽  
Cindy S. W. Lau
Keyword(s):  
Sol Gel ◽  
Ph Sensor ◽  
Organometallic Complex ◽  
Gel Film

A fiber-optic pH sensor prepared using a base-catalyzed organo-silica sol–gel

1998 ◽  
Vol 376 (2) ◽  
pp. 235-245 ◽  
Author(s):  
Delana A Nivens ◽  
Yunke Zhang ◽  
S.Michael Angel
Keyword(s):  
Fiber Optic ◽  
Sol Gel ◽  
Ph Sensor ◽  
Silica Sol

A low cost fiber-optic humidity sensor based on silica sol–gel film

2011 ◽  
Vol 160 (1) ◽  
pp. 1340-1345 ◽  
Author(s):  
Zhongjun Zhao ◽  
Yixiang Duan
Keyword(s):  
Humidity Sensor ◽  
Fiber Optic ◽  
Low Cost ◽  
Sol Gel ◽  
Silica Sol ◽  
Gel Film

Broad-Range Optical pH Sensor Based on Binary Mixed-Indicator Doped Sol-Gel Film and Application of Artificial Neural Network

2008 ◽  
Vol 41 (17) ◽  
pp. 3113-3123 ◽  
Author(s):  
Mojtaba Shamsipur ◽  
Fatemeh Abbasitabar ◽  
Vali Zare-Shahabadi ◽  
Shahabadi ◽  
Morteza Akhond
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Sol Gel ◽  
Ph Sensor ◽  
Gel Film ◽  
Artificial Neural ◽  
Optical Ph Sensor
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