Microfluidic-based biosensors toward point-of-care detection of nucleic acids and proteins |
| |
Authors: | Seokheun Choi Michael Goryll Lai Yi Mandy Sin Pak Kin Wong Junseok Chae |
| |
Affiliation: | (1) School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85287, USA;(2) Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, AZ 85721, USA; |
| |
Abstract: | This article reviews state-of-the-art microfluidic biosensors of nucleic acids and proteins for point-of-care (POC) diagnostics. Microfluidics is capable of analyzing small sample volumes (10−9–10−18 l) and minimizing costly reagent consumption as well as automating sample preparation and reducing processing time. The merger of microfluidics and advanced biosensor technologies offers new promises for POC diagnostics, including high-throughput analysis, portability and disposability. However, this merger also imposes technological challenges on biosensors, such as high sensitivity and selectivity requirements with sample volumes orders of magnitude smaller than those of conventional practices, false response errors due to non-specific adsorption, and integrability with other necessary modules. There have been many prior review articles on microfluidic-based biosensors, and this review focuses on the recent progress in last 5 years. Herein, we review general technologies of DNA and protein biosensors. Then, recent advances on the coupling of the biosensors to microfluidics are highlighted. Finally, we discuss the key challenges and potential solutions for transforming microfluidic biosensors into POC diagnostic applications. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|