Issue 1, 2018

Applications and developments of on-chip biochemical sensors based on optofluidic photonic crystal cavities

Abstract

Photonic crystal (PC) cavities, which possess the advantages of compactness, flexible design, and suitability for integration in a lab-on-a-chip system, are able to distinguish slight variations in refractive index with only a small amount of analyte. Combined with the newly proposed optofluidic technology, PC-cavity devices stimulate an emerging class of miniaturized and label-free biochemical sensors. In this review, an overview of optofluidic PC cavities based biochemical sensors is presented. First, the basic properties of the PC, as well as the sensing principle of the PC cavity, are discussed. Second, the applications of the sensors in detecting gas, liquid, and biomolecule concentrations are reviewed, with a focus on their structures, sensing principles, sensing properties, advantages, and disadvantages. Finally, the current challenges and future development directions of optofluidic PC-cavity-based biochemical sensors are discussed.

Graphical abstract: Applications and developments of on-chip biochemical sensors based on optofluidic photonic crystal cavities

Article information

Article type
Critical Review
Submitted
20 Jun 2017
Accepted
26 Oct 2017
First published
31 Oct 2017

Lab Chip, 2018,18, 57-74

Applications and developments of on-chip biochemical sensors based on optofluidic photonic crystal cavities

Y. Zhang, Y. Zhao, T. Zhou and Q. Wu, Lab Chip, 2018, 18, 57 DOI: 10.1039/C7LC00641A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements