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An extended-gate CMOS sensor array with enzyme-immobilized microbeads for redox-potential glucose detection is demonstrated for the first time. Redox-potential detection has the possibility to achieve high accuracy because it is not affected by the buffer conditions. Despite this high-accuracy property, redox-potential detection requires a sufficient amount of enzyme, which leads to increased cost...
Glucose detection associated with CMOS-based electronics has great potential from the viewpoints of cost, form factor, and simplicity. There are two conventional approaches for emerging CMOS-based glucose detection. One is based on direct charge detection, and another is based on pH detection. Unfortunately, these methods are susceptible to buffer conditions such as the salt concentration and pH buffer...
We calculated the usable distance of the main roads in the southern coastal area of Iwate prefecture following the 2011 Tohoku Earthquake. Calculations were based on a vehicle-tracking map built from G-BOOK telematics data. The main findings were as follows: 1) The distance of the roads used in a weekly period increased continuously from 03/18/2011 to 04/7/2011, but fluctuated thereafter. 2) Defining...
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