All researchCASE STUDY / 07 · Molecular sensing · Optoelectronics
TKX-50 Optical Sensor Turn-on polymer receptor and IoT-enabled fluorometric detection
A collaborative molecular-to-device study combining a turn-on fluorescent conjugated polymeric receptor with a custom LED–photodiode IoT-enabled handheld platform for quantitative TKX-50 detection.
FluorometryConjugated polymersLED–photodiodeIoTTKX-50
TKX-50 Optical Sensor · Research figure / project visual
29.2 nMMolecular-level detection limit
~475 nmTurn-on fluorescence emission
R² = 0.98Illustrated device calibration
01 / CHALLENGE
Why this work matters.
Sensitive molecular recognition is not by itself a field-deployable analytical solution. Optical response must be translated into repeatable instrumentation.
02 / APPROACH
How it works.
A TAPA/TPE-derived imine-linked polymer receptor exhibits a fluorescence turn-on response upon TKX-50 interaction. A custom optical reader couples LED excitation, photodetection, analog signal conditioning and digital IoT readout.
03 / EXPERIMENTAL WORKFLOW
From concept to measurement
STEP 01
Fluorescent receptor synthesis and characterization
STEP 02
Analyte recognition and photoluminescence measurement
STEP 03
Optical module integration
STEP 04
Photocurrent acquisition and signal conditioning
STEP 05
Portable calibration and connected reporting
04 / RESEARCH CONTRIBUTION
Contribution & context.
Collaborative contribution to translating the receptor response into portable optoelectronic hardware and experimental device assessment.