title: Method for producing coded micro-carrier and test method by using a novel type biochip.
abstract: This paper provides a method for producing a novel type coded micro-carrier. A simple and cost effective solution for bio-molecule applications was developed. Application relevant items such as manufacture process, biospecific interaction, and analysis method are discussed. For low cost fabrication, the use of LIGA-like process is suggested. LIGA-like process is used as a dry patterning process in which an intense beam of light from an excimer laser is used to pattern a material directly. This process has found extensive application in the microelectronics industry for patterning of polymer materials. The use of LIGA-like techniques offers two attractive features: first, we can cut the polymer into many tiny micro-carriers with micrometer precision. Second, LIGA-like process allows to encode with high precision spatial information onto the micro-carrier that can be used in the identification of the bio-molecule. This paper gives a description of the basic idea, describes the fabrication of the novel micro-carrier that we called "coded micro-carrier," and of the image processing algorithms used for the analysis of bio-molecules. This study also provides a test method for identifying a bio-molecule, which includes mixing several coded micro-carriers with the hybridized unknown bio-molecules; and identifying the codes on the micro-carrier via image recognition system. The numbers and types of the known micro-carrier can be flexibly adjusted according to the number of tested bio-molecules.
authors.affiliation: Graduate Institute of Optical Sciences, National Central University, Chung-Li 320, Taiwan, ROC. rschang@ios.ncu.edu.tw
authors.forename: R S
authors.initials: RS
authors.lastname: Chang
authors.forename: D Y
authors.initials: DY
authors.lastname: Lee
authors.forename: W Y
authors.initials: WY
authors.lastname: Chen
authors.forename: R N
authors.initials: RN
authors.lastname: Huang
authors.forename: H Y
authors.initials: HY
authors.lastname: Huang
authors.forename: J H
authors.initials: JH
authors.lastname: Hsu
authors.forename: P L
authors.initials: PL
authors.lastname: Lin
mesh_terms: D000818:Animals; D004867:Equipment Design; D007091:Image Processing, Computer-Assisted; D008832:Microchemistry / Q000295:instrumentation / Q000379:methods*; D008954:Models, Biological; D040081:Protein Array Analysis; D013499:Surface Properties