Design of a System for Analyzing Cell Mechanics

TL;DR

This paper presents a non-invasive, high-throughput system using holographic imaging and acoustic stimulation to measure cell stiffness accurately without damaging cells, aiding in medical diagnostics and research.

Contribution

Introduction of a novel off-axis holographic system with acoustic stimulation for label-free, continuous, and high-resolution cell mechanics analysis.

Findings

High-precision measurements with polyacrylamide beads

Potential applications in early cancer detection

Preserves cell integrity during analysis

Abstract

Accurately measuring cell stiffness is challenging due to the invasiveness of traditional methods like atomic force microscopy (AFM) and optical stretching. We introduce a non-invasive off-axis system using holographic imaging and acoustic stimulation. This system features an off-axis Mach-Zehnder interferometer and bulk acoustic waves to capture cell mechanics. It employs high-resolution components to create detailed interferograms and allows continuous imaging of cell deformation. Unlike conventional techniques, our method provides high-throughput, label-free measurements while preserving cell integrity. Polyacrylamide beads are tested for high precision, highlighting the potential of the system in early cancer detection, disease monitoring, and mechanobiological research.