Related Experiment Video
Updated: Jun 14, 2026
09:30
Precision Induction and Distinction of Coughing and Sneezing Reflexes in Mice
Published on: October 3, 2025
Introducing the scanning air puff tonometer for biological studies.
Vincent Fleury1, Alia Al-Kilani, Olena P Boryskina
1Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris-Diderot, CNRS, Bâtiment Condorcet, 10 Rue Alice Domon et Léonie Duquet, 75013 Paris, France.
Summary
A new scanning air puff tonometer measures elastoviscoplastic properties of soft tissues in vivo. This technology reveals material property gradients crucial for understanding tissue development and engineering.
Area of Science:
- Biophysics
- Tissue Engineering
- Developmental Biology
Background:
- Physical properties like elastoviscoplasticity are vital for tissue development and genetic pathway regulation.
- In vivo measurement of these properties in living materials presents significant challenges.
Purpose of the Study:
- To introduce a novel instrument, the scanning air puff tonometer, for mapping elastoviscoplastic properties of soft materials in vivo.
- To demonstrate the instrument's capability in revealing in vivo material property gradients.
Main Methods:
- Development of an improved air puff tonometer, adapted from optometric devices.
- Point-by-point mapping of viscoelastic properties on flat or gently curved soft materials.
- Validation using substances with known properties and biological samples.
Main Results:
- The scanning air puff tonometer successfully maps elastoviscoplastic properties in vivo.
- The instrument provides direct insight into gradients of material properties.
- Demonstrated capabilities on various materials and biological objects.
Conclusions:
- Elastoviscoplastic property gradients play a significant role in processes like angiogenesis, limb development, and bacterial colony expansion.
- This technology bridges gaps in tissue development theory by clarifying the role of physical features.
- Opens new avenues for tissue engineering through a better understanding of physical properties in biological material development.
