Work

Dielectrophoretic properties of engineered protein patterned colloidal particles

Year: 2012

Type: article

Abstract: This work determines the dielectrophoretic response of surface modified polystyrene and silica colloidal particles by experimentally measuring their Clausius-Mossotti factors. Commercial charged particles, fabricated ones coated with fibronectin, and Janus particles that have been grafted with fibronectin on one side only were investigated. We show that the dielectrophoretic response of such particles can be controlled by the modification of the chemistry or the anisotropy of their surface. Moreover, by modelling the polarizabilities of those particles, the dielectric parameters of the particles and the grafted layer of protein can be measured.

Source: Biomicrofluidics

DOI: 10.1063/1.4771544

Authors: T. Honegger, D. Peyrade

Institutions: Centre National de la Recherche Scientifique, Université Joseph Fourier, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA Grenoble, Laboratoire d'Électronique des Technologies de l'Information

Language: English

Topic: Microfluidic and Bio-sensing Technologies

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2008961972

FWCI: 1.618

Cites: 40

Cited by: 24

Related to: 10