pH-Control Microbeads With Conjugate Acid-Base Surface Loading
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Solution Overview
Problem
Conventional pH adjustment methods are labor-intensive, time-consuming, and costly, requiring automated systems for real-time monitoring and continuous addition of acids or bases.
Innovation Solution
Microbeads with conjugated acid and base adsorbed onto Si—OH groups on their surface, allowing for simple and rapid pH adjustment by passing a sample through them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional pH adjustment methods using acid or base solutions are used, then pH can be adjusted, but the process becomes labor-intensive and time-consuming
Solution Approach 1:
The microbeads are pre-loaded with conjugate acid and base during manufacturing, so the pH-adjusting agents are prepared in advance and attached to the microbead surface. When the sample passes through the microbead column, the pH adjustment occurs immediately without requiring real-time addition of acid or base solutions, thus eliminating the time-consuming aspect while maintaining accurate pH control.
Solution Approach 2:
The microbeads act as an intermediary carrier that holds both conjugate acid and base on its surface. Instead of directly adding acid or base to the sample, the microbeads mediate the pH adjustment by releasing these agents as needed, making the process automated and eliminating manual intervention.
2Reliability
If automated pH control system with valve system is used, then real-time pH monitoring is achieved, but the system becomes complex and costly
Solution Approach 1:
The microbead column itself performs the pH adjustment function autonomously as samples pass through it. The microbeads contain both conjugate acid and base and automatically release them based on the sample's pH needs, eliminating the requirement for external valve systems, pH meters, and continuous monitoring equipment, thus achieving reliable pH control with minimal device complexity.
Solution Approach 2:
The microbeads combine multiple functions into a single component: they serve as the pH-adjusting agent, the delivery system, and the control mechanism all in one. This merging of functions into the microbead itself eliminates the need for separate automated control systems, valves, and monitoring devices.
3Reliability
If automated pH control system is used, then pH can be controlled continuously, but the cost increases significantly
Solution Approach 1:
The microbead column is designed as a disposable or easily replaceable component. Instead of investing in expensive automated pH control systems that require maintenance and calibration, the invention uses inexpensive microbeads that can be manufactured at low cost and replaced when needed, significantly reducing the overall system cost while maintaining reliable pH control.
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
Enables efficient and economical pH control without the need for automated devices, saving time and resources while effectively adjusting pH values.
Implementation Method 1
microbeads having conjugated acid and conjugate base adsorbed onto Si—OH groups on the surface of the microbeads by electrostatic interaction
Data Source
AI summary
Microbeads capable of controlling the pH of a sample are provided. The microbeads can control the pH of a sample to be equal, similar or close to a target pH without an automated device and the like such as an additional valve system for controlling pH, and thus could be readily applied to fields requiring pH control.