Graphene-based optofluidic tweezers for refractive-index and size-based nanoparticle sorting, manipulation, and detection.

ABSTRACT: This work proposes a novel design composed of graphene nanoribbons-based optofluidic tweezers to manipulate and sort bio-particles with radii below 2.5 nm. The suggested structure has been numerically investigated by the finite difference time domain (FDTD) method employing Maxwell's stress tensor analysis (MST). The finite element method (FEM) has been used to obtain the electrostatic response of the proposed structure. The tweezer main path is a primary channel in the center of the structure, where the microfluidic flow translates the nanoparticle toward this channel. Concerning the microfluid's drag force, the nanoparticles tend to move along the length of the main channel. The graphene nanoribbons are fixed near the main channel at different distances to exert optical forces on the mov

SUBMITTER: Gholizadeh E 

PROVIDER: S-EPMC9898258 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature