Effect of Visual Cognition on the Measurement of Particle Size Using ImageJ Software

Abstract:

Background: Nanoparticles are structures up to 100 nm in size. Estimation of their size is usually determined by assessing of images obtained from scanning electron microscopy (SEM) and/or transmission electron microscopy (TEM) techniques. Studies on the effect of visual cognition on the analysis of these types of images are limited. Objective: The aim of the research was to determine whether students’ visual cognition influences the identification, analysis, and measurement of nanoparticle size through SEM and TEM imaging using ImageJ software. Methods: The visual cognition of each participant was evaluated by recognizing individual nanoparticles and measuring their diameter using ImageJ software. Finally, the Kruskal Wallis test was performed for statistical analysis. Results: Participants applied or not four main identification criteria in order to identify individual nanoparticles: shape, high contrast, defined …

Año de publicación:

2021

Keywords:

Fuente:

google