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We synthesized a novel multi-fluorescence sensor which can respond to both pH and temperature. This kind of sensor was based on amino-polystyrene microbeads and two different fluorescent indicators (Rhodamine B and FITC) were applied simultaneously to synthesize the multi-sensor. Rhodamine B shows an excellent linear relationship between the relative fluorescent intensity and temperature while it...
Gas flows through a micro-channel were experimentally studied by using PSCC (Pressure-Sensitive Channel Chip). PSCC is a micro-channel fabricated by PDMS containing a pressure-sensitive dye, and then it works as both a micro-channel and PSP (Pressure-Sensitive Paint). The micro-channel (PSCC) with 200 × 91 μm cross section and 2.0 mm long was fabricated. The pressure distribution with the inlet and...
We have constructed a simple estimation method of the dependence to photosynthetic rate of the light intensity using semiconductor pH sensor. As the rearing environment is important for effective growth of plants, simple measurement method of the photosynthetic rate is desired. Plants in photosynthesis absorb carbon dioxide (CO2) and release carbohydrates and oxygen. As CO2 is readily soluble in water...
Many types of functional gels have been developed and applied to soft actuators or artificial muscles. In particular, electroactive polymer gels that change shape when controlled electrically seem to be promising. But the mechanical motion is driven by electric stimuli. In the present study, we describe the autonomous hydrogel locomotion powered by the chemical energy. The polymer gels can generate...
Daily continuous spirometry is expected to detect the initial symptoms of lung disease that appear in daily-life situations. Spiro Vest is an e-Textile-based wearable spi-rometer that is suitable for daily continuous spirometry because it does not require uncomfortable attachments, such as the nose-pinching clips and mouthpieces used by typical medical spirometers. However, several adaptation issues...
This paper presents an environment friendly fabrication technology of MEMS devices using biodegradable polymer material applying hot embossing and polishing process. The capability of the method was demonstrated through the fabrication and tested of a polylactic acid (PLA) thermal microactuator. The displacement was about 11 times larger than that of a Si counterpart. In this research, a monolithic...
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