Portable Laser Biosensor Combining Absorption and Fluorescence Spectroscopy
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Solution Overview
Problem
There is a need for a portable, handheld device that can simultaneously perform molecular absorption spectrophotometry and molecular fluorescence spectrophotometry for efficient field testing of substances within a fluid sample, as existing technologies do not offer a combined solution for rapid and accurate analysis.
Innovation Solution
A portable, modular biosensor that combines molecular absorption spectrophotometry and molecular fluorescence spectrophotometry using a laser-based system, featuring a radiation emitting module, sample cell module, absorption detector, fluorescence detector, and processor to provide both absorption and fluorescence spectral data, allowing for rapid and accurate analysis of substances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a portable biosensor combines both molecular absorption spectrophotometry and molecular fluorescence spectrophotometry in a single device, then measurement precision and selectivity are improved, but device complexity increases
Solution Approach 1:
The patent combines molecular absorption spectrophotometry (MAS) and molecular fluorescence spectrophotometry (MFS) into a single portable biosensor device, integrating both measurement capabilities to provide comprehensive substance detection with improved precision and selectivity
Solution Approach 2:
The biosensor is designed as a multi-functional device that can perform both absorption and fluorescence measurements simultaneously, allowing it to detect various substances using different spectroscopic methods within one universal platform
2Ease of operation
If the biosensor is designed to be portable and handheld, then ease of operation is improved, but the device size and volume increase
Solution Approach 1:
The biosensor is divided into modular components including a radiation emitting module, sample cell module, detection modules, and display module that can be independently configured and assembled, enabling portable design while maintaining full functionality
Solution Approach 2:
The patent replaces traditional mechanical spectrophotometer components with laser-based radiation emission and electronic detection systems, significantly reducing the device size while maintaining measurement capabilities for portable operation
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 biosensor enables rapid and accurate detection of substances by providing improved selectivity and sensitivity through combined absorption and fluorescence measurements, suitable for various applications including military, food, and health industries, with a compact and user-friendly design.
Implementation Method 1
a light source received within the radiation emitting module housing and configured to generate excitation energy, illustratively a laser beam
Implementation Method 2
An absorption detector is configured to detect emission intensity produced by the electromagnetic radiation passing through the solution in the sample cell chamber and produce absorption spectral data in response thereto
Implementation Method 3
A fluorescence detector is configured to detect molecular emissions produced by the laser excited molecules as the laser beam passes through the solution in the sample cell chamber and produces fluorescence spectral data in response thereto
Data Source
AI summary
A hand-held laser based biosensor including modular components, combining absorption spectrophotometry and molecular fluorescence spectrophotometry, and including a sample cell module having an improved absorption path length.