Modeling the influence of gravity and the mechanical properties of elastin and collagen fibers on alveolar and lung pressure–volume curves

L Shi, J Herrmann, S Bou Jawde, JHT Bates, HT Nia… - Scientific reports, 2022 - nature.com
The relationship between pressure (P) and volume (V) in the human lung has been
extensively studied. However, the combined effects of gravity and the mechanical properties …

Inflation instability in the lung: an analytical model of a thick-walled alveolus with wavy fibres under large deformations

SB Jawde, K Karrobi, D Roblyer… - Journal of the …, 2021 - royalsocietypublishing.org
Inflation of hollow elastic structures can become unstable and exhibit a runaway
phenomenon if the tension in their walls does not rise rapidly enough with increasing …

Analysis of stress distribution in the alveolar septa of normal and simulated emphysematic lungs

A Gefen, D Elad, RJ Shiner - Journal of biomechanics, 1999 - Elsevier
The alveolar septum consists of a skeleton of fine collagen and elastin fibers, which are
interlaced with a capillary network. Its mechanical characteristics play an important role in …

Introducing a custom-designed volume-pressure machine for novel measurements of whole lung organ viscoelasticity and direct comparisons between positive-and …

S Sattari, CA Mariano, S Vittalbabu… - … in Bioengineering and …, 2020 - frontiersin.org
Asthma, emphysema, COVID-19 and other lung-impacting diseases cause the remodeling
of tissue structural properties and can lead to changes in conducting pulmonary volume …

[HTML][HTML] Lung parenchymal mechanics

B Suki, D Stamenovic, R Hubmayr - Comprehensive Physiology, 2011 - ncbi.nlm.nih.gov
The lung parenchyma comprises a large number of thin-walled alveoli, forming an
enormous surface area, which serves to maintain proper gas exchange. The alveoli are held …

An analytical model for estimating alveolar wall elastic moduli from lung tissue uniaxial stress-strain curves

S Bou Jawde, A Takahashi, JHT Bates… - Frontiers in physiology, 2020 - frontiersin.org
The non-linear stress-strain behavior of uniaxially-stretched lung parenchyma is thought to
be an emergent phenomenon arising from the ensemble behavior of its microscopic …

A distributed nonlinear model of lung tissue elasticity

GN Maksym, JHT Bates - Journal of Applied Physiology, 1997 - journals.physiology.org
Maksym, Geoffrey N., and Jason HT Bates. A distributed nonlinear model of lung tissue
elasticity. J. Appl. Physiol. 82 (1): 32–41, 1997.—-We present a theory relating the static …

Lung parenchymal mechanics in health and disease

DS Faffe, WA Zin - Physiological reviews, 2009 - journals.physiology.org
The mechanical properties of lung tissue are important determinants of lung physiological
functions. The connective tissue is composed mainly of cells and extracellular matrix, where …

[HTML][HTML] Airway-parenchymal interdependence

PD Paré, W Mitzner - Comprehensive physiology, 2012 - ncbi.nlm.nih.gov
In this manuscript we discuss the interaction of the lung parenchyma and the airways as well
as the physiological and pathophysiological significance of this interaction. These two …

The role of three-dimensionality and alveolar pressure in the distribution and amplification of alveolar stresses

MA Sarabia-Vallejos, M Zuñiga, DE Hurtado - Scientific reports, 2019 - nature.com
Alveolar stresses are fundamental to enable the respiration process in mammalians and
have recently gained increasing attention due to their mechanobiological role in the …