The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Hot-points in biosensors development, such as an application of new bifunctional platforms with an example of photonic crystal fibers and multiplexing of labels with an example of multiloaded with quantum dots nanostructures are discussed.
In this paper, a CEA (carcinoembryonic antigen) concentration measurement system using flexural plate wave (FPW) biosensors and a frequency-shift readout IC is presented. The proposed frequency-shift readout method employs a programmable frequency generator and a peak detecting scheme to estimate the resonant frequency. The programmable frequency generator provides a frequency scanning range from...
A fast protein concentration measurement system with two-port FPW (flexural plate wave) biosensors using a frequency-shift readout technique is presented in this paper. The proposed frequency-shift readout method employs a peak detecting scheme to measure the amount of resonant frequency shift. The frequency sweep range of the linear frequency generator is limited in 2 MHz to 10 MHz according to the...
This study presents an extended gate field-effect transistor (EGFET) chloride ion-selective sensor with very low hysteresis and high sensitivity for the point-of-care testing (POCT) blood analysis. All of the manufacturing processes adopted in this work are compatible with standard planar technology; hence, they are very suitable for mass production. This work firstly investigates the influence of...
To identify the extreme low concentration of alpha-fetoprotein (AFP) antigen in human serum for early detection of hepatocellular carcinoma (HCC), this paper aims to develop a high-sensitivity and low-cost AFP biosensor using quartz crystal microbalance (QCM) and cystamine self-assembly monolayer (SAM) technologies. QCM-based biosensors usually require smaller sampling, lower testing cost and fewer...
This paper presents a novel flexural plate wave (FPW) allergy microsensor with integrated cystamine-based self-assembly monolayers (SAMs) for the detection of immunoglobulin-E (IgE) concentration in human serum. The propagation membrane of the FPW biosensor is constructed with Si/SiO2/Si3N4/ZnO multi thin-films and released from the 512 mum-thick 4-inch silicon substrate as a floating thin-plate by...
This paper presents the design, fabrication and characterization of a novel flexural plate wave (FPW) microsensor for immunoglobulin-E (IgE) detecting applications. The propagation membrane is constructed with SiO2/Si3N4/ZnO multilayers and be released from the silicon substrate as a floating thin-plate by using bulk micromachining technology. The ultrasonic flexural plate waves are launched and received...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.