An Integrated Microfluidic SELEX Approach Using Combined Electrokinetic and Hydrodynamic Manipulation.

ABSTRACT: This article presents a microfluidic approach for the integration of the process of aptamer selection via systematic evolution of ligands by exponential enrichment (SELEX). The approach employs bead-based biochemical reactions in which affinity-selected target-binding oligonucleotides are electrokinetically transferred for amplification, while the amplification product is transferred back for affinity selection via pressure-driven fluid flow. The hybrid approach simplifies the device design and operation procedures by reduced pressure-driven flow control requirements and avoids the potentially deleterious exposure of targets to electric fields prior to and during affinity selection. In addition, bead-based reactions are used to achieve the on-chip coupling of affinity selection and amplifi

SUBMITTER: Olsen T 

PROVIDER: S-EPMC5417355 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature