New Disc Format for Biosensing by Using Optical Pick-Up Head System

• Published in: IEEE transactions on magnetics Vol. 50; no. 7; pp. 1 - 4
• Main Authors: HUANG, Der-Ray, JU, Jau-Jiu, LEE, Yuan-Chin, CHEN, Jiin-Sen, LO, Feng-Hsiang, CHANG, Sheng-Li
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.07.2014; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Actuators; Biomedical optical imaging; Circularity; Cross-disciplinary physics: materials science; rheology; Discs; Disks; Exact sciences and technology; Format; Head; Image detection; Magnetic heads; Magnetism; Materials science; Optical discs; Optical imaging; Optical sensors; Other topics in materials science; Physics; Substrates; Testing; Tracking; biosensing; Biosample; optical pick-up head; disc format; Magnetic properties
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2014.2300340

In order to detect the bioimage efficiently, a new disc format for biosensing by using the optical pick-up head system has been developed. A pick-up head system with three-axis actuator and modified detecting sensor has been designed to detect biosamples on circular substrate. In order to detect the image accurately, we design special leading-in/leading-out and some prepits on a small disc substrate with new format for focusing tracking. The disc diameter of new format circular substrate is 75 mm. For efficient testing, two formats of the single row format with sample size 2 mm × 2 mm and the double row format with sample size 1 mm × 1 mm have been proposed. This is a new concept to use the optical disc drive technology with modification to detect the bioimage and fluorescent signal for biosamples.