Immobilization of glucose oxidase in sol–gel matrix and its application to fabricate chemiluminescent glucose sensor

Application of ionic liquid–TiO2 nanoparticle modified carbon paste electrode for the voltammetric determination of benserazide in biological samples

“…Added (μmol L −1 ) Expected (μmol L −1 ) Found (μmol L −1 ) Standard method (μmol L −1 ) [24] F ex F tab t ex t tab(95%) …”

“…TiO 2 nanoparticles have excellent chemical and physical properties; they have been used in sensor preparation, coating, solar cell, and photocatalyst applications [22,23]. TiO 2 nanoparticles have been incorporated with other compounds such as graphite and carbon nanotubes to make modified electrodes in the electrochemical analysis of some biologically important compounds [24][25][26][27][28], because they provide more active sites at the electrode surface. TiO 2 can be used in wide potential windows (instead of Au-nanoparticles), and improves the stability of the electrode, therefore increases the repeatability of the electrode response.…”

A Sensitive Voltammetric Determination of Anti-Parkinson Drug Pramipexole Using Titanium Dioxide Nanoparticles Modified Carbon Paste Electrode

“…TiO 2 nanoparticles have excellent chemical and physical properties; they have been used in the sensor preparation, coating, solar cell, and photocatalyst applications. 16,17 These nanoparticles have been incorporated with other compounds, such as graphite and carbon nanotubes, to make modified electrodes in the electrochemical analysis of some biological compounds, [18][19][20][21][22] because they provide more active sites at the surface of the electrode. TiO 2 nanoparticles can be used in wide potential windows and improve the stability of the electrode, therefore, increase the repeatability of the electrode response.…”

Fiber optic glucose biosensor

“…[7][8][9][10][11][12] Among these, spectroscopy has been selected because it avoids the application of voltage and the use of selective membranes. Spectroscopic methods can be further subdivided into chemiluminescence, 7 spectrofluorometry, 8,9 and spectrophotometry. 10,11 The last of these three methods is based on the absorbance changes revealed by a redox-sensitive system.…”

“…[14][15][16] Other glucose sensors are based on electropolymerization or the sol-gel technique. 5,7 However, the technique presented in this work offers some advantages. The sensitive system can utilize different polymer structures.…”