Nanovesicle GPCR Taste Sensor for Selective Sweet Detection
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Solution Overview
Problem
Current taste sensors do not incorporate heterodimeric G-protein coupled receptors, which are essential for accurately detecting sweet tastes, limiting their sensitivity and selectivity in taste recognition.
Innovation Solution
A nanovesicle containing a heterodimeric G-protein coupled receptor, specifically hTAS1R2 and hTAS1R3, is created and integrated into a field effect transistor-based taste sensor, allowing for real-time detection of sweet taste substances with improved sensitivity and selectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional taste sensors are used, then device simplicity is maintained, but sensitivity and selectivity for sweet taste detection are insufficient
Solution Approach 1:
The patent embeds heterodimeric GPCR complexes within nanovesicles, which are then integrated onto the FET sensor surface. This nested structure allows complex biological recognition systems to be contained within manageable nanoscale carriers, achieving high sensitivity without proportionally increasing device complexity
Solution Approach 2:
The nanovesicle acts as an intermediary carrier that protects and delivers the heterodimeric GPCR to the sensor surface. This mediator enables the integration of complex biological receptors while maintaining sensor functionality and simplifying the overall device architecture
2Measurement precision
If heterodimeric GPCR is incorporated into nanovesicles, then detection precision for sweeteners is improved, but manufacturing complexity increases
Solution Approach 1:
The heterodimeric GPCR is pre-assembled within nanovesicles before being integrated onto the sensor. This preliminary preparation of functional complexes simplifies the final sensor manufacturing process by enabling direct integration of pre-formed, functional units rather than requiring complex in-situ assembly
Solution Approach 2:
The patent utilizes controlled expression conditions and purification parameters to optimize the incorporation of heterodimeric GPCR into nanovesicles. By adjusting parameters such as expression timing, purification conditions, and nanovesicle isolation methods, the manufacturing process achieves high detection precision while managing complexity
3Adaptability or versatility
If single G protein receptor is used, then device complexity is reduced, but detection selectivity for different sweeteners is limited
Solution Approach 1:
The patent combines multiple GPCR subunits (T1R2 and T1R3) into a heterodimeric complex within the nanovesicle. This merging of complementary receptor subunits creates a functional unit with enhanced and specific sweet taste detection capability, achieving broad detection selectivity without requiring separate sensors for each receptor type
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 nanovesicle-based taste sensor achieves high sensitivity and selectivity in detecting sweet taste substances, comparable to human taste perception, with a detection range up to the μM level, outperforming traditional sensors in accuracy and responsiveness.
Implementation Method 1
a heterodimeric G-protein coupled receptor, specifically hTAS1R2 and hTAS1R3
Implementation Method 2
field effect transistor-based taste sensor comprising nanovesicle
Data Source
AI summary
The present invention relates to a nanovesicle comprising a heterodimeric G-protein coupled receptor, a method for preparing the nanovesicle, a field effect transistor-based taste sensor comprising the nanovesicle, and a method for manufacturing the taste sensor. The field effect transistor based taste sensor functionalized by the nanovesicle comprising the heterodimer G-protein coupled receptor according to the present invention has excellent sensitivity and selectivity and may highly specifically detect a sweet taste substance in real time, by using the heterodimeric G-protein coupled receptor and the nanovesicle comprising the same.