BioEM 2025

Session

Oral Session 10

OS10

26 Jun 2025, 09:30

Les Dortoirs (Couvent des Jacobins)

Conveners

Oral Session 10: Emerging Biophysical Methods: From Cellular Dielectrophoresis to Environmental Biosensing

• Elham Salimi
• Olivia Peytral-Rieu

330. Uhf-dielectrophoresis as a tool for predicting tumor mutational burden through biophysical analysis

Nina Blasco

26/06/2025, 09:30

Tumor Mutational Burden (TMB) is a key biomarker for immunotherapy response but is costly and time-consuming to assess via sequencing. This study explores ultra-high frequency dielectrophoresis (UHF-DEP) as a rapid, label-free alternative by analyzing the electromagnetic signature (EMS) of cancer cells.
Using a lab-on-a-chip biosensor, UHF-DEP crossover frequencies (CFs) were measured in...

331. Bacteria-based Electrochemical Impedance sensor: towards a biosensor for pollutants detection in water

Antoine Rico

26/06/2025, 09:45

Quality of water resources is a major global challenge and water pollution is a daily topic. Certain pollutants can kill bacteria and destroy cell walls depending on their concentration, leading to the release of cytoplasm cell ions to the medium by diffusion. Hence, studying the conductivity and permittivity of a bacterial solution is used to investigate bacterial behaviour with respect to...

332. Using microwaves of 18 GHz as a novel method for bacterial transformation

Denver Linklater

26/06/2025, 10:00

Bacterial transformation is the internalization of exogenous DNA and integration into the recipient genome via homologous recombination, which can result in bacteria acquiring possible new genetic traits. The laboratory standards for bacterial transformation requires chemically competent cells and despite the reported high efficiencies, chemical and heat shock transformation methods have...

333. Assessment of intracellular dielectric properties of cancer cells using dielectrophoretic measurments

Thamila Chetouane

26/06/2025, 10:15

This paper proposes an analytical method based on electrokinetic measurements ( experimentally measured dielectrophoresis crossover frequencies and predicted extremum electrorotation speed frequency) allowing to extract intracellular dielectric properties i.e., permittivity and conductivity to characterize cancerous stem cells of a colorectal cell line .