Dielectrophoretic sample pre-treatment for free nucleic acid elimination

Overview

This research proposes a novel sample pre-treatment approach using dielectrophoresis (DEP) to selectively eliminate free nucleic acids from biological samples. Dielectrophoresis is an electrokinetic phenomenon that allows the manipulation of electrically neutral molecules and particles within nonuniform electric fields. The core hypothesis is that nucleic acids exhibit distinct dielectric properties that enable their selective removal via DEP, leaving other sample components intact. This capability could significantly improve sample preparation workflows in molecular diagnostics, genomics, and analytical chemistry by providing a targeted, non-chemical method for nucleic acid clearance.

Technical specifications

• Dielectrophoresis-based manipulation: Uses nonuniform electric fields to move and isolate molecules based on their dielectric properties, even when the target molecules are electrically neutral
• Selective nucleic acid targeting: Exploits the unique dielectric response of nucleic acids to separate them from other sample constituents
• Non-chemical approach: Eliminates the need for enzymatic degradation or chemical extraction methods typically used for nucleic acid removal
• Established expertise: The research team has extensive publications and experimental results in manipulating nano- and micro-particles, biological cells, and viruses using dielectrophoresis
• Customizable parameters: Operating conditions can be tailored based on specific sample characteristics and target molecule properties

Technology readiness level

This technology is at an early research and feasibility assessment stage. The research team has substantial foundational expertise in dielectrophoretic manipulation of particles, cells, and viruses, supported by a significant body of published work. However, specific validation for free nucleic acid elimination requires additional development. A detailed feasibility evaluation is needed, beginning with a collaborative discussion to define sample characteristics, target molecules, and desired outcomes. The team is seeking industry partners to provide sample specifications and requirements to enable a customized validation plan and determine optimal operating conditions for specific applications.