Composite sensors using functionalized carbon nanotubes and metal nanoparticles detect nitric oxide at low concentrations while resisting humidity interference.
Capacitive plate pairs measure electrical resistance across composite surfaces to map ply inconsistencies that traditional ultrasound inspection cannot detect.
A polyethyleneimine sensing layer detects carbon dioxide through electrical property changes.
A driving circuit uses pulse width modulation and an H-bridge to generate opposing signals.
A Cr2O3 and ZnCr2O4 nanocomposite detects methylbenzenes through catalytic oxidation reactions.
GaN nanowire sensors functionalized with metal nanoparticles achieve selective detection at room temperature, eliminating high-power heating requirements.
A galvanic sensor detects water droplets using thin metal wires and a hydrophobic coating that prevents breakdown in humid environments.
A carbon nanotube biosensor uses a dielectric layer to separate capture agents from the channel, enabling sensitive analyte detection.
Metal oxide nanoparticle sensors with thin-film heating elements enable rapid hydrogen sulfide detection.
A chemically-selective percolation switch uses a binding agent to form conductive pathways only upon target detection.
A sensitive membrane with controlled conductive particle ratios reduces water interference while maintaining accurate volatile organic compound detection.
A conductive polymer film detects airborne contaminants through deprotonation reactions that alter electrical conductivity.
Periodic temperature cycling reduces ozone concentration before measurement, eliminating baseline shifts and improving VOC accuracy.
Metal carbon complexes integrated with carbon nanotubes enable selective ethylene detection below 20 ppm despite oxygen and water interferents.
A receptor molecule undergoes intramolecular cyclization with organophosphorus compounds, generating distinct electric charges detectable through variations in resistance or transconductance.