Q. For measuring using calorimetric biosensors, the sensitivity of the glucose analysis using glucose oxidase may be doubled by the co-immobilization of _____________

View solution

Q. An extreme case of amplifying sensitivity for the determination of ADP does not involve co-immobilization which of the following enzyme?

View solution

Q. Potentiometric biosensors uses _______________ in order to transduce the biological reaction into an electrical signal.

View solution

Q. Which of this is not true for ion-selective electrode?

View solution

Q. Which of these is not an ion-selective electrode?

View solution

Q. ______________ is one in which the sensing element is a very thin hydrated glass membrane.

View solution

Q. Which of the following ion-selective electrode consist of gas permeable membrane?

View solution

Q. ____________ is one in which has a thin membrane of a specific ion conductor made from a mixture of silver sulphide and a silver halide.

View solution

Q. What does ‘X’ represent in the following reaction?

Penicillin \(\underset{X}{\rightarrow}\) Penicilloic acid + H⁺

View solution

Q. What does ‘Y’ represent in the following reaction?

Amygdalin + 2H₂O \(\underset{X}{\rightarrow}\) 2 Glucose + benzaldehyde + H⁺ + CN⁻

View solution

Q. Which of the following biosensors function by the production of a current when a potential is applied between two electrodes?

View solution

Q. The simplest amperometric biosensor is ____________

View solution

Q. The following reaction occurs at __________

4Ag⁰ + 4Cl⁻ → 4AgCl + 4e⁻

View solution

Q. Where does the following reaction occur?

O₂ + 4H⁺ + 4e⁻ → 2H₂O

View solution

Q. Which of the following biosensor determines glucose concentrations by the use of an immobilized glucose oxidase membrane?

View solution

Q. Use of mediators in amperometric biosensor is required.

View solution

Q. Which of these properties is not true for mediators?

View solution

Q. Which of the following represents a commonly used family of mediators?

View solution

Q. Amperometric biosensors for flavo-oxidase enzymes illustrates three generations in the development of a biosensor.

View solution

Q. What is represented by the following equation?

I = nFAvᴀ

View solution