Sol−Gel Derived Potentiometric pH Sensors

2005 ◽  
Vol 77 (3) ◽  
pp. 848-853 ◽  
Author(s):  
Stephanie M. Marxer ◽  
Mark H. Schoenfisch
Keyword(s):  
Sol Gel ◽  
Ph Sensors

Fibre optic pH sensors prepared by sol-gel immobilisation technique

1991 ◽  
Vol 27 (17) ◽  
pp. 1560 ◽  
Author(s):  
J.Y. Ding ◽  
M.R. Shahriari ◽  
G.H. Sigel
Keyword(s):  
Sol Gel ◽  
Fibre Optic ◽  
Ph Sensors

Distributed fiber optic pH sensors using sol-gel silica based sensitive materials

2021 ◽  
Vol 340 ◽  
pp. 129853
Author(s):  
Fei Lu ◽  
Ruishu Wright ◽  
Ping Lu ◽  
Patricia C. Cvetic ◽  
Paul R. Ohodnicki
Keyword(s):  
Fiber Optic ◽  
Sol Gel ◽  
Ph Sensors

Structural and Sensing Properties of Sol–Gel Synthesized Ce2(Zr1–xTix)OySensing Films for pH Sensors

2017 ◽  
Vol 64 (9) ◽  
pp. 3971-3975 ◽  
Author(s):  
Sankar Prasad Bag ◽  
Bih-Show Lou ◽  
Jim-Long Her ◽  
See-Tong Pang ◽  
Tung-Ming Pan
Keyword(s):  
Sol Gel ◽  
Ph Sensors ◽  
Sensing Properties

Doped sol-gel glasses as pH sensors

1992 ◽  
Vol 13 (6) ◽  
pp. 293-298 ◽  
Author(s):  
C. Rottman ◽  
M. Ottolenghi ◽  
R. Zusman ◽  
O. Lev ◽  
M. Smith ◽  
...  
Keyword(s):  
Sol Gel ◽  
Ph Sensors ◽  
Gel Glasses

scholarly journals Thin film optical BTB pH sensors using sol–gel method in presence of surfactants

2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Issa M El Nahhal ◽  
Shehata M Zourab ◽  
Fawzi S Kodeh ◽  
Alaa I Qudaih
Keyword(s):  
Thin Film ◽  
Sol Gel ◽  
Ph Sensors ◽  
Gel Method ◽  
Sol Gel Method

ZnO thin films applied as pH sensor in EGFET devices

2015 ◽  
Vol 1805 ◽  
Author(s):  
Jessica C. Fernandes ◽  
Marcelo Mulato
Keyword(s):  
Thin Films ◽  
Zinc Oxide ◽  
Sol Gel ◽  
Ph Sensor ◽  
Zno Thin Films ◽  
Percentage Increase ◽  
Ph Sensors ◽  
Sensitive Layer ◽  
Spray Pyrolysis Deposition ◽  
Deposition Techniques

ABSTRACTZinc oxide thin films prepared by sol-gel and doped with different aluminum percentages were deposited by spray-pyrolysis deposition techniques on FTO and ITO substrates. The films were applied as the sensitive layer of pH-sensors EGFET devices. ZnO:Al films on FTO substrates shows a decrease in sensor quality with the dopant percentage increase. The opposite occurs when the substrate was ITO. The best quality film to be used as pH-sensor on FTO substrates was the ZnO:Al (3%) with 29 mV/pH sensitivity value and linear adjust of 0.99. For ITO substrates the best quality was achieved for ZnO:Al (10%), with sensitivity about 30 mV/pH and 0.99 linear adjust.

Behaviour of phenol red pH-sensors in the presence of different surfactants using the sol-gel process

2010 ◽  
Vol 90 (8) ◽  
pp. 644-656 ◽  
Author(s):  
Issa Mussa El-Nahhal ◽  
Shehata Mahmoud Zourab ◽  
Fawzi Soliman Kodeh ◽  
Abeer Al-Bawab
Keyword(s):  
Sol Gel ◽  
Phenol Red ◽  
Ph Sensors ◽  
Sol Gel Process

scholarly journals Entrapment of phenol red pH indicator into polyaniline sol-gel

2019 ◽  
Vol 9 (1) ◽  
pp. 57
Author(s):  
Norliza Othman ◽  
Uzer Mohd Noor ◽  
Sukreen Hana Herman
Keyword(s):  
Optical Sensors ◽  
High Performance ◽  
Low Cost ◽  
Sol Gel ◽  
Phenol Red ◽  
Ph Sensors ◽  
Ph Indicator ◽  
Simple Method ◽  
Promising Alternative ◽  
Ph Variation

Optical pH sensors offer a promising alternative method over the existence pH electrochemical sensor and other. Due to ability to achieve high performance, electrical passive operation, simplicity and price effectiveness. Recently, significant research efforts have been devoted to pH sensors for the detection of pH variation in high resolution short range changes. It becomes important to consider ways to heighten the sensitivity of the indicator by improving combination of the material and simple method of sensor fabrication. Effort has been put in studying the fabrication and the sensitivity of film towards pH range in physiological application. Most optical sensors consist of an indicator which is immobilized in a polymer matrix. In this research, polyaniline act as a sol - gel matrix to support pH sensitive indicator molecules which is phenol red. Polyaniline has been found to be versatile functional material which is the most suitable organic material to act as a matrix in aqueous medium and capability to sense on pH changes. The combination between polyaniline with phenol red will enhance the sensitivity of the sensor. The sensing capabilities of the device in term its optical absorption intensity with different pH values were explored. Besides that, simpler and low cost methods was prepared and developed. Through the final investigations, it was found that the phenol red immobilized in a polyaniline film on a portion of fiber optic developed by deposited for 4 layers at thickness is 88.46 nm, withdrawal speed with 15 mm/s and re-cladded length is 15mm/s is the best optimized parameters.

scholarly journals Luminescent hybrid coatings prepared by a sol–gel process for a textile-based pH sensor

2020 ◽  
Vol 1 (4) ◽  
pp. 918-925 ◽  
Author(s):  
Aicha Boukhriss ◽  
Mohamed El messoudi ◽  
Jean-Philippe Roblin ◽  
Tarik Aaboub ◽  
Damien Boyer ◽  
...  
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Ph Sensor ◽  
Cotton Fabrics ◽  
Hybrid Coatings ◽  
Ph Sensors ◽  
Sol Gel Process

Luminescent hybrid materials which contain fluorene and stilbene based fluorophores were coated onto cotton fabrics to design textile-based pH sensors.

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