Alternating Enzyme Electrodes to Prevent Adsorption During Reaction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Enzymatic reactions in the presence of non-target molecules, such as in food samples, suffer from reduced efficiency due to adsorption of these molecules on the working electrode, leading to slowed or halted reactions.
Innovation Solution
An enzymatic reaction device and method involving a first and second electrode with immobilized enzymes, alternating voltage application periods to ensure one electrode functions as a working electrode while the other does not, inhibiting non-target molecule adsorption and ensuring efficient target molecule reaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single electrode is used for enzymatic reaction, then the device structure is simple, but the reaction efficiency decreases due to adsorption of non-target molecules on the electrode surface
Solution Approach 1:
The single electrode is divided into two separate electrodes (first electrode and second electrode). Each electrode can function independently as a working electrode during its designated voltage application period, allowing the reaction to continue without interruption while the other electrode rests, thus preventing adsorption accumulation and maintaining high reaction efficiency.
Solution Approach 2:
The voltage application is performed periodically by alternating between the first electrode and the second electrode. During the first voltage application period, voltage is applied to the first electrode; during the second voltage application period, voltage is applied to the second electrode. This periodic switching prevents continuous adsorption on a single electrode surface, maintaining reaction efficiency over time.
2Productivity
If voltage is applied continuously to maintain reaction efficiency, then the reaction proceeds efficiently, but non-target molecules adsorb on the electrode surface and inhibit the reaction
Solution Approach 1:
The voltage application is performed periodically by alternating between the first electrode and the second electrode. During the first voltage application period, voltage is applied to the first electrode; during the second voltage application period, voltage is applied to the second electrode. This periodic switching prevents continuous adsorption on a single electrode surface, maintaining reaction efficiency over time.
Solution Approach 2:
Each electrode undergoes cycles of use and recovery. When one electrode is functioning as the working electrode, the other electrode is at rest, allowing adsorbed non-target molecules to desorb or be removed. This recovery period prevents accumulation of adsorbed substances that would inhibit the reaction, ensuring continuous high efficiency.
3Object-affected harmful factors
If the electrode is allowed to rest to prevent adsorption, then adsorption of non-target molecules is reduced, but the reaction time is insufficient and efficiency decreases
Solution Approach 1:
The single electrode is divided into two separate electrodes (first electrode and second electrode). Each electrode can function independently as a working electrode during its designated voltage application period, allowing the reaction to continue without interruption while the other electrode rests, thus preventing adsorption accumulation and maintaining high reaction efficiency.
Solution Approach 2:
The functions of reaction execution and electrode recovery are merged into a single system with two electrodes. While one electrode performs the enzymatic reaction, the other electrode simultaneously recovers from adsorption. This merging ensures that the total reaction time is maintained while providing periodic rest periods for each individual electrode.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The alternating voltage application enables high-efficiency enzymatic reactions by preventing non-target molecule adsorption and ensuring sufficient reaction time, maintaining reaction efficiency even in complex samples like food.
Implementation Method 1
a voltage applicator that applies voltages to the first electrode and the second electrode, in which the voltage applicator applies a voltage to the first electrode and the second electrode in such a manner that a first voltage application period during which a voltage is applied to the first electrode so that the first electrode functions as a working electrode that causes a reaction of the target molecule
Implementation Method 2
a first electrode and a second electrode each including at least one of an enzyme or a coenzyme that causes a reaction of a target molecule in a sample, and an electrode body including at least one of the enzyme or the coenzyme immobilized on a surface of the electrode body
Data Source
AI summary
An enzymatic reaction device includes first and second electrodes and a voltage applicator that applies a voltage to the first and second electrodes. The first and second electrodes each include at least one of an enzyme or a coenzyme that causes a reaction of a target molecule in a sample, and an electrode body including at least one of the enzyme or coenzyme immobilized on its surface. The voltage application by the voltage applicator is performed in such a manner that a first period during which a voltage is applied to the first electrode so that the first electrode functions as a working electrode that causes a reaction of the target molecule, and a second period during which a voltage is applied to the second electrode so that the second electrode functions as a working electrode that causes a reaction of the target molecule, are alternately repeated.