The relationship between friction and wettability in aqueous environment

Z Pawlak, W Urbaniak, A Oloyede - Wear, 2011 - Elsevier
In this study, the influence of surface wettability (θ) and interfacial energy (γ) on the
coefficient of friction (f) of tribopair surfaces in aqueous environment was investigated using …

Friction of hydrogels with controlled surface roughness on solid flat substrates

S Yashima, N Takase, T Kurokawa, JP Gong - Soft Matter, 2014 - pubs.rsc.org
This study investigated the effect of hydrogel surface roughness on its sliding friction against
a solid substrate having modestly adhesive interaction with hydrogels under small normal …

A quest to extend friction law into multiscale soft matter: experiment confronted with theory—a review

P Bełdowski, A Gadomski - Journal of Physics D: Applied Physics, 2022 - iopscience.iop.org
This topical review focuses on applying the basics of the classical Coulomb–Amontons (CA)
law of friction to describe bioinspired articulating systems of extremely low values of …

Relationship between wettability and lubrication characteristics of the surfaces of contacting phospholipid-based membranes

Z Pawlak, AD Petelska, W Urbaniak, KQ Yusuf… - Cell biochemistry and …, 2013 - Springer
The wettability of the articular surface of cartilage depends on the condition of its surface
active phospholipid overlay, which is structured as multi-bilayer. Based on a hypothesis that …

Some conceptual thoughts toward nanoscale oriented friction in a model of articular cartilage

A Gadomski, P Bełdowski, JM Rubi, W Urbaniak… - Mathematical …, 2013 - Elsevier
This work presents a conceptual framework as to how a deficit in the synovial-fluid content,
exemplified by hyaluronan or any other amphiphilic species, is capable of decisively altering …

The probable explanation for the low friction of natural joints

Z Pawlak, W Urbaniak, M Hagner-Derengowska… - Cell Biochemistry and …, 2015 - Springer
The surface of an articular cartilage, coated with phospholipid (PL) bilayers, plays an
important role in its lubrication and movement. Intact (normal) and depleted surfaces of the …

Adaptive capacities of chromium doped graphite-like carbon films in aggressive solutions with variable pH

X Guan, Y Wang, J Wang, Q Xue - Tribology International, 2016 - Elsevier
The corrosive behaviors and tribological performances were investigated for chromium
doped graphite-like carbon films in variable pH solutions. Results showed that the as …

[PDF][PDF] The role of lamellate phospholipid bilayers in lubrication of joints

Z Pawlak, W Urbaniak, A Gadomski… - Acta of Bioengineering …, 2012 - academia.edu
This study aims to determine the effect of progressive loss of the surface active
phospholipids on the characteristics, and hence tribological function of articular cartilage. In …

Mathematical principles and methods of biological surface lubrication with phospholipids bilayers

K Wierzcholski, A Miszczak - Biosystems, 2019 - Elsevier
This paper presents a mini-review of investigations performed by the authors in the field of
hydrodynamic theory of lubrication of biological systems and synthetic processing of results …

Enhanced syngas production from waste lubricant oil reforming with transition metal catalysts

J Nisamaneenate, D Atong, U Phusuwan, I Idris… - Journal of Analytical and …, 2023 - Elsevier
Waste lubricant oil (WLO) which is a spent oil from vehicles, and machinery is often
incinerated or landfilled, leading to environmental pollution and heavy metal …