Related Experiment Video
Updated: Nov 20, 2025
13:15
Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy
Published on: July 18, 2014
11.3K
Use of spherical particles to understand conidial attachment to surfaces using atomic force microscopy
Mohsin Amin1, Andrea Preuss2, Ted Deisenroth2
1Microbiology at Interfaces, Manchester Metropolitan University, Chester St, Manchester M1 5GD, UK.
Iscience
|January 25, 2021
Summary
Particle and spore attachment to surfaces, crucial for biofilm formation, was studied using spheres. Non-biological sphere forces mirrored biological fungal conidia, offering insights into complex biological processes.
Area of Science:
- Surface science
- Biophysics
- Materials science
Background:
- Particle and spore binding to surfaces is essential for biofilm development.
- Understanding these interactions is key to controlling microbial adhesion.
Purpose of the Study:
- To investigate the forces and strengths of non-biological particle attachment to various surfaces.
- To compare these forces with those observed in biological systems.
Main Methods:
- Atomic force microscopy (AFM) cantilevers were modified with polystyrene or glass spheres.
- Sphere attachment forces were measured against glass, PVAc, p(γ-MPSco-MMA), p(γ-MPS-co-LMA), PMMAsc, and silicon surfaces.
Main Results:
- Polystyrene spheres showed less variable attachment forces than glass spheres.
- Polystyrene sphere attachment was affected by co-polymer surface mobility but not wettability.
- Attachment forces of non-biological spheres were comparable to fungal conidia.
Conclusions:
- Non-biological sphere-surface interactions provide a model for biological particle adhesion.
- This approach offers fundamental insights into complex biological attachment processes.
