Photonic crystal based centrifugal microfluidic biosensors

被引：0

作者：

Lee, Seung-Kon ^{[1
]}

Park, Tae Jung ^{[1
]}

Kim, Soyoung ^{[1
]}

Yi, Gi-Ra ^{[1
]}

Lee, Sang Yup ^{[1
]}

Yang, Seung-Man ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Natl Creat Res Initiat Ctr Integrated Optofluid S, Taejon 305701, South Korea

来源：

OPTOELETRONIC MATERIALS AND DEVICES, PTS 1 AND 2 | 2006年 / 6352卷

关键词：

photonic crystals; centrifugal microfluidics; colloidal crystals; band-gap tuning; biosensor;

D O I：

10.1117/12.690185

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we report a fast and facile method for fabricating colloidal photonic crystals inside microchannels of radially symmetric microfluidic chips. As the suspension of monodisperse silica or polystyrene latex spheres was driven to flow through the channels under the centrifugal force, the colloidal spheres were quickly assembled into face centered cubic arrangement which had photonic stop bands. The optical reflectance spectrum was modulated by the refractive-index mismatch between the colloidal particles and the solvent filled in the interstices between the particles. Therefore, the present microfluidic chips with built-in colloidal photonic crystals can be used as in-situ optofluidic microsensors for high throughput screening, light filters and biosensors in integrated adaptive optical devices.

引用

页数：9

共 24 条

[1] Colloidal crystallization and banding in a cylindrical geometry [J].