Protocols - Imaging Flow Cytometry: Methods And

Imaging Flow Cytometry (IFC) is a hybrid technology that combines the of conventional flow cytometry with the detailed spatial and morphological resolution of digital microscopy. Unlike standard flow cytometry, which provides integrated signal intensity for a whole cell, IFC captures multiple digital images of every individual cell as it passes through the system. Core Principles and Advantages

: Systems like the ImageStream use Charge-Coupled Device (CCD) cameras with Time Delay Integration (TDI) to track cells in flow, preventing motion blur and enabling the detection of dim markers. Imaging Flow Cytometry: Methods and Protocols

: Cells must be in a single-cell suspension to avoid clogging the thin fluidic channels used for imaging. Imaging Flow Cytometry (IFC) is a hybrid technology

IFC provides a "visual verification" for every data point, allowing researchers to see exactly what their gated populations look like. : Cells must be in a single-cell suspension

: If internal markers (e.g., nuclear proteins) are the target, cells are fixed with formaldehyde and permeabilized with detergents like Triton X-100.

: Non-specific binding is prevented using anti-Fc antibodies. Cells are then stained with fluorophore-conjugated antibodies, viability dyes, or nuclear dyes like DAPI or Hoechst to provide spatial landmarks.

: It allows for the quantification of intracellular features, such as the translocation of signals into the nucleus or the internalization of particles. Key Protocol Steps