摘要:
Provided is a multiple SAW sensor system capable of sensing a plurality of target materials in the SAW sensor with a single detector by using a multiplexer. According to the multiple SAW sensor system, the target materials in SAW sensors may be sensed with a single detector, thereby avoiding unnecessary power loss. Also, a plurality of target materials in a sample may be sensed, thereby reducing a waste of the sample.
摘要:
Provided are a sensor for detecting molecular binding by increasing the mass of a gold nanoparticle through light-irradiation and a method thereof. In the method, light-irradiation increases the size of gold nanoparticles without using a reducing agent, to enhance the mass. Accordingly, selectivity may be improved, and the sensitivity of detection may be improved due to a change in various properties of a gold nanoparticle.
摘要:
Provided is a surface acoustic wave sensor system, in which multiplexers are connected to input and output terminals of a plurality of surface acoustic wave devices through one feedback loop, and thus one oscillation channel is configured. Such a surface acoustic wave sensor system can prevent errors caused by deviations between oscillators, and thus sensitivity and reproducibility can be improved.
摘要:
A surface acoustic wave sensor system includes a base substrate, a piezoelectric substrate disposed on the base substrate, inter-digital transducer (IDT) electrodes disposed along a longitudinal direction on the piezoelectric substrate, each IDT electrode including an input inter-digital transducer and an output inter-digital transducer paired with and facing the input inter-digital transducer, each pair of input and output IDTs forming a surface acoustic wave unit sensor with the piezoelectric substrate, and connection electrodes disposed in the base substrate and electrically connected to the surface acoustic wave unit sensors.
摘要:
A surface acoustic wave sensor device includes a main body and a liquid controller disposed external to the main body. The main body includes a sample chamber, a surface acoustic wave sensor connected to the sample chamber, a first disposal chamber connected to the surface acoustic wave sensor and channels connecting the sample chamber, the surface acoustic wave sensor and the first disposal chamber. The liquid controller controls flow of a sample through the main body.
摘要:
Provided herein is a surface acoustic wave (SAW) sensor device including a surface acoustic wave sensor and an oscillator corresponding to the surface acoustic wave sensor. A horizontal plane defined by the oscillator is inclined at a predetermined angle with respect to a horizontal plane defined by the surface acoustic wave sensor. The predetermined angle is greater than zero degrees.
摘要:
Provided herein is a fluid sensor, which includes a closed reaction unit in which reaction of a fluid sample takes place. The reaction unit is tapered on a side through which the fluid is injected so as to prevent generation of air bubbles during the injection of the fluid. Thus, the sensor has improved sensitivity.
摘要:
A surface acoustic wave device, including: a piezoelectric substrate; an interdigitated transducer electrode disposed on the substrate; an oxide film disposed on surface of the interdigitated transducer electrode; and a hydrophobic film disposed on a surface of the oxide film.
摘要:
A surface acoustic wave (“SAW”) sensor includes; a first signal generator which generates a first signal having a predetermined frequency bandwidth using a pseudo random sequence, a second signal generator which generates a second signal with a predetermined frequency, a signal blender which blends the first signal with the second signal to generate a blended signal having the predetermined frequency bandwidth with the predetermined frequency as a center frequency, a wave generator which generates a surface acoustic wave using the blended signal, which converts the surface acoustic wave into a third signal after the surface acoustic wave travels a predetermined distance, and which outputs the third signal, and a signal detector which detects a change in the third signal from the wave generator to sense a substance bound to the wave generator.